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Kayhi grad represents Alaska at national camp – Ketchikan Daily News

Posted: September 2, 2017 at 5:45 am

Kayhi grad represents Alaska at national camp

By ALAINA BARTELDaily News Staff Writer

Class of 2017 Ketchikan High School graduate and Syracuse University freshman Cameron Edwards represented Alaska and Ketchikan at the 2017 National Youth Science Camp in Green Bank, West Virginia, this summer.

Edwards, who is studying to be an environmental engineer, joined 108 other delegates from 50 states and eight countries in the prestigious annual STEM (science, technology, engineering and mathematics) program. The event takes place in the Monongahela National Forest and provides learning opportunities through STEM presentations and outdoor activities.

We had some really cool presenters come, like the chief scientist for the International Space Station came, and one of the guys that helped pioneer stem cell research came and he talked about stem cells, Edwards said.

As a part of the event, the students travel to the nations capitol in Washington D.C., which is only five hours away from the camp. Each year, West Virginias senior member of the United States Senate honors the delegates with a luncheon attended by other members of the U.S. government.

We heard John McCain talk. We went to the senate building and theres a senate luncheon, and all of the senators are invited but it was the day that they were voting on the health care bill, so no one really came, Edwards said. Our nurse went and she was trying to find senators to come and talk and she found John McCain, he was walking out of the bathroom.

For nearly a month, the delegates attended lectures but also experienced the beauty of the West Virginia outdoors through backpacking, caving, mountain biking and rock climbing. Edwards said she particularly enjoyed the outdoor activities, but also learned a lot at the event.

At her favorite presentation, which she said wasnt necessarily scientific but rather related to the scientific community, she learned about teaching. Specifically, the lecturer talked about how to look at information and to question everything that they read, and how to change someones perspective, and what they believe to be true, without saying theyre wrong.

The camp is attended by graduating high school seniors with high achievements in STEM fields. The future STEM leaders are selected on merit, with the program provided to them at no cost, including travel, removing any financial barriers for attendance, according to a statement from the NYSC.

This is a unique experience for these amazing students and one that can impact them for the rest of their lives, John Giroir, director of the NYSC, said in a statement. Cameron is (an) excellent example of the kind of student who participates and goes on to significant achievements in the STEM fields.

The National Youth Science Camp is operated by the National Youth Science Foundation. To apply for the NYSC, visit http://www.apply.nysc.org. To learn more about the programs and work of the NYSF, visit http://www.nysf.com.

A couple of people from Ketchikan have gone. Its for graduating seniors, I would just encourage them to apply, she said. Its a lot of fun, I made a lot of friends and I made a lot of connections that will last me a lifetime. Its such a big community of people, Im really glad I went and Im glad I applied.

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COLUMN: Let’s make biological warfare a crime – Journal Gazette and Times-Courier

Posted: September 2, 2017 at 5:45 am

Biological and chemical warfare has been used for centuries before WW II, but it was warfare lab at Fort Detrick and Dugway, Utah, authorized by President Roosevelt that delved into the animal disease or anthrax, brucellosis, and Black Plague that are feared and deadly to humans. Whenever anthrax was discovered in herds of sheep or cows, the whole herd would be herded into a dug ditch. Killed, bodies burned and covered with soil, and the land on which the herd grazed would be fenced off and kept free of all animals.

Britain collaborated with America on biological warfare. So when Winston Churchill threatened to bomb four German cities with anthrax bombs if Hitler didnt stop bombing England with V-2 missiles into England, Hitler stopped sending missiles. When the biological warfare labs combined anthrax DNA with a plant disease DNA, a new disease was created that was incurable for when it would be treated it would morph into another disease to fight off the disease was needed like smallpox vaccine.

As my job on the farm was to gather eggs and look after the chickens, I came down with chicken pox and spent a week or more in a darkened room to save my eyesight. But every year I still had to line up, have someone scratch left arm until blood flowed and get small pox vaccine.

Three weeks after 9/11, the secretary of Senate Majority Leader Tom Daschle opened a letter to Tom and the envelope contained a trillion spores of silicon coated anthrax. Tom had opposed President Bushs orders that took away Constitutional rights as did Senator Leahy. His secretary was also poisoned by anthrax spores. It was then blamed on Saddam Hussein but traced to the biological weapons laboratories at Dugway, Utah, and Fort Detrick, Maryland, that President Nixon had ordered closed in 1972 but were kept open.

The labs made synthetic viruses by injecting RNA plant diseases into the DNA of an animal disease to make a new biological warfare disease. They then prepared vaccine to immunize American soldiers going into a nation devastated by this disease. Prisoners in a Maryland prison were offered to have six months off their sentence if they agreed to be vaccinated. They all died but passed this disease on.

While politicians argue over Obamacare, they should push to ban biological warfare the whole world over. Chemotherapy cant distinguish between leukemia or neoplastic cells; transplanted stem cells can replace cells killed by chemotherapy or diseased or dead neural cells such as Alzheimer's, dementia, neural or muscular degeneration.

Paracrine soluble factors produced by stem cells, known as stem cell secretome, mediate the effect of degenerative, inflammatory, and auto-immune is being researched as a medical use itself as cell-free medicinal product. Prochymal was conditionally approved by Canada in 2012 for treatment of children. FDA has approved five hematopoietic stem cell products derived from umbilical cord blood. MSC is derived from bone marrow of adult donors that can make up 10,000 doses that are frozen and stored until needed.

I propose a treaty to halt biological warfare research and have governments work on regenerative stem cell therapies or like therapies that would do away with invasive surgeries, chemotherapy, drugs, to improve the health and lives of people all over the world.

Andrew Patterson was born on a dairy farm two miles south of Sullivan on Feb. 13, 1930. He has attended eight universities for a total of 10 years, lived in 10 countries for 28 years, traveled in 50, speaks and writes Spanish, reads French and German, has written seven encyclopedia articles, and numerous reports and studies for World Bank, Pan American Union, and Economic Development.

Descendant from 15 American Revolutionary ancestors (16th was Cherokee), history is his life's blood, as is telling the truth. He states, "The day I stop learning is the day I am dead, and The hardest thing in life has been to unlearn what has been taught to me as the truth. He has learned there are many men who have stopped WW III from China, Russia, and other countries and it cost them their life. President John F. Kennedy was one of them.

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Stanford Medicine opens center for stem cell, gene therapy – The Stanford Daily

Posted: September 2, 2017 at 5:44 am

Stanford Medicine will open a new Center for Definitive and Curative Medicine (CDCM) to treat people with genetic diseases using stem cells and gene therapies. The center is a joint-initiative with the school of medicine, Stanford Health Care and Stanford Childrens Health.

Maria Grazia Roncarolo, MD, who is the George D. Smith Professor in Stem Cell and Regenerative Medicine, will direct the center, located within the Department of Pediatrics in Lucile Packard Childrens Hospital. Roncarolo said the same physician-scientists developing the drugs will treat patients, expediting the process of finding appropriate and precise treatments.

We will use the discoveries from the Stanford labs to design the therapy for Phase 1 trials, Roncarolo said. Instead of using drugs generated from biotech companies, were using drugs generated from our own labs.

Certain complex diseases like type 1 diabetes, leukemia, lymphoma, metabolic syndrome, cardiovascular disease, neurodegenerative diseases and some pediatric cancers currently have no cure but symptoms can be remedied using stem cell or gene therapy. Stem cell therapy takes stem cells from donors while gene therapy takes stem cells from the patient which were engineered to correct the genetic defect.

Diseases that arent genetic such as degenerative diseases, heart attacks and strokes can also be treated by stem cell transplantation. The CDCM will be equipped with the standard stem cell transplantation beds and investigative beds for clinical trials.

Roncarolo will lead a team of four other associate directors and physicians. Roncarolo said the team has specialties in multiple fields which will help address a range of genetic diseases.

The aspirational goal of this center is to work in multidisciplinary teams with different expertise to cure patients with incurable diseases, Roncarolo said.

According to one of these team members, Anthony Oro, MD, who is the Eugene and Gloria Bauer Professor and professor of dermatology, babies born with birth defects can have their defective genes taken out and corrected in a laboratory then re-inserted back using stem cells. Oro explained this is similar to a heart transplant, where a healthy organ replaces the damaged one to cure the patient. By using the persons own DNA to manufacture the healthy genes and organs, the patient doesnt need to be on immunosuppressant drugs or be matched with a donor who is compatible in blood type and tissue type.

Its a revolutionary idea to use cells and tissues as drugs to actually cure diseases which we havent been able to cure before because we only had surgery and medicine before, Oro said. The difference between potential cures and actual cures with huge effects is a mile apart. Were bringing the potential of cures to reality here.

Contact Jessica Zhang at jessica at stanforddaily.com

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Stanford Medicine opens center for stem cell, gene therapy - The Stanford Daily

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Faced with life-threatening diseases, patients take over – The San Diego Union-Tribune

Posted: September 2, 2017 at 5:44 am

Battling an extremely aggressive prostate cancer and running out of options, Bryce Olson could have done what many patients do: ask his oncologists advice.

Had he done so, Olson says he would probably be dead by now. Hed likely have received more harsh chemotherapy, which is less effective with each cancer recurrence.

Instead, Olson looked to the frontiers of medicine for experimental treatments that precisely fit his diseases genetic profile, a field known as precision medicine. By choosing this path, Olson estimates he has gained at least two years of life.

Olson and other patients told their stories about what precision medicine did for them at a panel discussion during a recent conference on the subject in downtown San Diego.

Their message is that patients with life-threatening diseases need to take charge of their treatment; not necessarily to oppose their doctors, but to participate as equals.

And as patients who have benefited from precision medicine tell their stories, they say, other patients are going to follow suit.

Olson, global marketing director of the health and life sciences group at chip-maker Intel Corp., looked at his disease with the attitude of a technologist.

He successfully lobbied to have his genome sequenced, which yielded the information needed to qualify him for a clinical trial of an experimental drug. The genome is the complete set of DNA in an organism, containing all hereditary information.

Olson went so far as to confer with a pathologist, who normally reports to the oncologist, not the patient. This irregular procedure made the pathologist uncomfortable, Olson said, but enabled him to actively advocate on his own behalf.

The drug itself failed the clinical trial. But Olson was able to get the remaining drug supply routed to him, because he had genetic biomarkers that indicated the drug helped him, and he didnt suffer the heart toxicity that affected other patients.

In effect, Olson was able to turn himself into a one-man clinical trial.

Now Olson is looking for the next experimental therapy to try.

I wouldnt be here today if I hadnt partnered with research, Olson said. And I dont want to veer from that path ever again, because imprecision medicine kinda sucks.

Nicholas Volker became famous as the first person whose life was saved through genome sequencing. As a child, he was diagnosed with a genetically caused intestinal disorder, leading to a successful umbilical cord blood transplant.

Amylynne Santiago Volker, Nicholas mother, told his story at the panel. It was a long process mostly filled with unanswered questions and urgent medical procedures, she said.

My son Nic has had 172 surgeries, he wasnt able to eat for three years He weighed 17 pounds at age 4 in 2009, she said. He had his entire colon removed in April of 2009.

After that operation, his parents decided to search his genome for a genetic cause. Scientists sequenced the small part of the genome that contains genes that code for proteins, known as the exome.

What they found from the sequencing was XIAP, which is a one-in-a-billion mutation, Volker said. He also had a rare disease, called XLP. Thirty days after transplant he got encephalitis, he developed intractable seizures.

The good news is that after these ordeals, Nicholas is not only alive, but out of the hospital, and learning to socialize with other children.

Genome sequencing such as that done for Nicholas has become far more common, and far less expensive, than in 2009. Its now routinely performed at health care centers such as Rady Childrens Hospital in San Diego.

But much of the public has no idea about the power of the new genetic tools that can help doctors make better-informed choices, Volker said.

To spread that story further, pay for Nics care, and others in his situation, Volker has established the One in a Billion Foundation. Ultimately, the foundation aims to make genome sequencing a standard of pediatric care, and available to every child in need, worldwide.

The foundation can be reached at http://www.oneinabillionic.com.

Panel moderator Hudson Freeze has been advocating for precision medicine for many years.

Director of the human genetics program at Sanford Burnham Prebys Medical Discovery Institute, he studies rare diseases involving a process called glycosylation, or putting sugar molecules on proteins.

These are the kinds of exotic diseases that doctors usually treat with imprecision medicine, if theyve even heard of them. Patients may travel around the country, or even internationally, in search of a specialist.

Every year, Sanford Burnham Prebys sponsors a conference on glycosylation-related diseases, bringing together academic researchers, doctors and those with the diseases. The next one is scheduled for Feb. 23-25. Go online to j.mp/glycosy for more information.

Glycobiology is this dark matter. Not many people know about it, Freeze said. The ability of scientists to come forward and be in a good relationship with patients and physicians is critically important.

Freeze discovered the limits of imprecision medicine early in life. His sister, Jackie, is profoundly mentally disabled, with a mind of roughly a year-old infant. She is 65 years old.

Unlike prostate cancer patient Olson, Jackie wasnt offered an inadequate treatment, Freeze said in a post-panel interview. She wasnt offered anything at all.

About a year after she was born, Jackie began failing her developmental milestones. Freeze was about 5 when the family drove from their home in Garrett, Ind., to the big city, Chicago, to see a specialist.

So we go out to see this physician, and after some time we will never forget this quote she said, Well, there is no place for this child, Freeze said. And we drove back 150 miles in complete silence.

Jackie has some understanding of what people say, but she cant talk herself. She does recognize and responds to people. To demonstrate, Freeze took out his smartphone and called Jackies caregiver for a video conference.

Hi sweetie, Freeze said, pointing to Jackies face on the smartphone. Jackie, how are you?

She's smiling, Freeze said. She's gone try to kiss the phone. That's usually what she does.

After a few more minutes, Freeze says goodbye and ends the call.

Freeze, a regular nerd in high school, said Jackies condition didnt cause him to enter rare disease research, but after he became interested in biology, he saw the connection.

That interest led him to meet with families with children like Jackie.

So I came into this meeting and here all these kids who were a lot like my sister, and I just felt so at home, Freeze said. It was all so normal. Everything just fit.

To help people like Olson and Jackie, people from different fields need to collaborate more with each other, he said.

It's going to be a matter of getting scientists and physicians educated, and scientists to get out of their comfort zone and just talk to people, Freeze said.

When patients find they have options and can choose among them, they get more personally involved in their care, said Olson,

If you just get thrown into the one-size-fits-all treatment plan, I think you lose your engagement pretty quickly, Olson said.

It wasnt until I got my molecular diagnosis, when I got something that was personalized and precise, all of a sudden my engagement went like this, he said, gesturing upward.

When the doctor has no answers

One of a Kind

Young patient faces new struggles years after DNA sequencing

Federally funded research is foundation for our future

Precision Medicine Summit calls for action

Precision medicine's value to ovarian cancer patient

Even more money for historic push to customize fight against diseases

bradley.fikes@sduniontribune.com

(619) 293-1020

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New UCSF Program Aims to Advance Equity in Genomic Medicine in the Bay Area – UCSF News Services

Posted: September 2, 2017 at 5:44 am

A team of UC San Francisco researchers will receive $11.7 million over four years from the National Institutes of Health (NIH) to launch a new Program in Prenatal and Pediatric Genomic Sequencing (P3EGS) at UCSF. The program is aimed at pursuing equity in the implementation of genomic precision medicine for children and families in the San Francisco Bay Area.

Genomic precision medicine is a broad effort to connect the vast amounts of genetic sequencing data that have been collected in the past decades with information about human population health in order to understand why individuals respond differently to sickness and medical treatment, and to apply this knowledge toward developing more precise diagnostics and therapies targeted to the needs of particular patients and groups.

To advance equity in precision medicine within the Bay Area, the P3EGS team will recruit 1,100 families with children with potential prenatal or pediatric genetic disorders drawn from a diverse set of backgrounds, including medically underserved communities. P3EGS will not only provide state-of-the-art genomic assessments to these families, but also provide genetic counseling, develop software to aid in displaying and communicating genetic data in community clinics, and study the long-term benefits of providing genetic sequencing for these families and children as well as identify the barriers they face in accessing care.

The effort leverages the outstanding clinical, genomics, informatics, bioethics, health economics, and medical anthropology expertise that together form a robust genomics infrastructure at UCSF. The P3EGS team will be helmed by four leading members of the Institute for Human Genetics (IHG) at UCSF:

Neil Risch, PhD, the director of the UCSF Institute for Human Genetics, notes that P3EGS will be among the first users of the newly approved UCSF Whole Exome Sequencing service hosted by the Genomic Medicine Initiative, which he co-directs with Kwok.

Patients will be recruited from the diverse communities served by UCSF Benioff Childrens Hospital Oakland, UCSF Benioff Childrens Hospital San Francisco, UCSF Betty Irene Moore Womens Hospital, and Zuckerberg San Francisco General Hospital (ZSFGH).

Funding for the P3EGS program is part of $18.9 million being awarding by the NIH this year toward research accelerating the use of genome sequencing in clinical care at six sites across the United States, called the Clinical Sequencing Evidence-Generating Research (CSER2) Consortium. The consortium is funded by the National Human Genome Research Institute (NHGRI) and the National Cancer Institute (NCI), both part of NIH, and it builds upon an earlier Clinical Sequencing Exploratory Research (CSER) Consortium, initiated in 2010, which included an award to Koenig and colleagues to study the ethics of informing family members of participants in cancer biobank research about unanticipated genetic findings.

The CSER2 awards are designed to support the development of methods needed to integrate genome sequencing into the practice of medicine, improve the discovery and interpretation of genomic variants, and investigate the impact of genome sequencing on health care outcomes. In addition, the funds are intended to generate innovative approaches and best practices to ensure that the effectiveness of genomic medicine can be applied to all individuals and groups, including diverse and underserved populations, and in health care settings that extend beyond academic medical centers.

The full press release about the CSER2 awards is available on the NHGRI website

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Gene therapy Kymriah: What’s in a name? – BioWorld Online

Posted: September 2, 2017 at 5:44 am

By Anette BreindlSenior Science Editor

Kymriah (tisagenlecleucel, CTL-019, Novartis AG) and other chimeric antigen receptor (CAR) T cells have been making their way through clinical trials as cell therapies. So the FDAs Aug. 30 announcement that its approval of Kymriah was a historic action today making the first gene therapy available in the United States initially led to some head-scratching.

Why a gene therapy?

The most obvious possible goal of gene therapy is to replace a missing gene, or correct a defective one. Two of the gene therapies that have been approved by the European Commission, Glybera (alipogene tiparvovec, Uniqure BV), approved for the treatment of lipase deficiency (LPL) by in 2012, and Strimvelis (GSK-2696273, Glaxosmithkline plc.), approved in 2016 for treatment of patients with the rare immune disorder ADA-SCID, have the goal of replacing faulty genes.

But in the FDAs 1998 Guidance for Human Somatic Cell Therapy and Gene Therapy, gene therapy is defined more broadly, and depends on the process a cell has undergone before it is administered to a patient rather than on its therapeutic goal.

According to the guidance document, gene therapy is a medical intervention based on modification of the genetic material of living cells. Cells may be modified ex vivo for subsequent administration to humans, or may be altered in vivo by gene therapy given directly to the subject. When the genetic manipulation is performed ex vivo on cells which are then administered to the patient, this is also a form of somatic cell therapy.

By that definition, Kymriah is both a cell therapy just not the first and a gene therapy just not one that replaces a missing gene.

Why the first?

There is another genetically manipulated therapy on the market Imlygic (talimogene laherparepvec, Amgen Inc.), an oncolytic virus that was approved in 2015 for the treatment of melanoma lesions in the skin and lymph nodes.

Imlygic is also conditionally approved in the European Union, and there, it is considered a gene therapy.

On its website, the European Medicines Agency describes Imlygic, like Glybera and Strimvelis, as a type of advanced therapy medicine called a gene therapy product. This is a type of medicine that works by delivering genes into the cells of the body. Imlygic works both by replicating inside the melanoma cells, and by delivering the gene for GM-CSF, which stimulates the immune system to recognize the tumor cells.

The FDA, however, does not consider Imlygic a gene therapy because although Imlygic has been genetically modified, Imlygics primary biological activity is attributable to the oncolytic virus, not the genetic modification, an FDA spokesperson told BioWorld. In contrast, the function of the CAR T-cell product depends on the genetic material transferred to the patients cells. Therefore, the agency considers CAR T cells to be a type of cell-based gene therapy.

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FDA Cracks Down On Stem-Cell Clinics Selling Unapproved Treatments – Wyoming Public Media

Posted: September 2, 2017 at 5:44 am

The Food and Drug Administration is cracking down on "unscrupulous" clinics selling unproven and potentially dangerous treatments involving stem cells.

Hundreds of clinics around the country have started selling stem cell therapies that supposedly use stem cells but have not been approved as safe and effective by the FDA, according to the agency.

"There are a small number of unscrupulous actors who have seized on the clinical promise of regenerative medicine, while exploiting the uncertainty, in order to make deceptive, and sometimes corrupt assurances to patients based on unproven and, in some cases, dangerously dubious products," FDA Commissioner Scott Gottlieb said in a statement Monday.

The FDA has taken action against clinics in California and Florida.

The agency sent a warning letter to the US Stem Cell Clinic of Sunrise, Fla., and its chief scientific officer, Kristin Comella, for "marketing stem cell products without FDA approval and significant deviations from current good manufacturing practice requirements."

The clinic is one of many around the country that claim to use stem cells derived from a person's own fat to treat a variety of conditions, including Parkinson's disease, amyotrophic lateral sclerosis (ALS), and lung and heart diseases, the FDA says.

The Florida clinic had been previously linked to several cases of blindness caused by attempts to use fat stem cells to treat macular degeneration.

The FDA also said it has taken "decisive action" to "prevent the use of a potentially dangerous and unproven treatment" offered by StemImmune Inc. of San Diego, Calif., and administered to patients at California Stem Cell Treatment Centers in Rancho Mirage and Beverly Hills, Calif.

As part of that action, the U.S. Marshals Service seized five vials of live vaccinia virus vaccine that is supposed to be reserved for people at high risk for smallpox but was being used as part of a stem-cell treatment for cancer, according to the FDA. "The unproven and potentially dangerous treatment was being injected intravenously and directly into patients' tumors," according to an FDA statement.

Smallpox essentially has been eradicated from the planet, but samples are kept in reserve in the U.S. and Russia, and vaccines are kept on hand as a result.

But Elliot Lander, medical director of the California Stem Cell Treatment Centers, denounced the FDA's actions in an interview with Shots.

"I think it's egregious," Lander says. "I think they made a mistake. I'm really baffled by this."

While his clinics do charge some patients for treatments that use stem cells derived from fat, Lander says, none of the cancer patients were charged and the treatments were administered as part of a carefully designed research study.

"Nobody was charged a single penny," Lander says. "We're just trying to move the field forward."

In a written statement, U.S. Stem Cell also defended its activities.

"The safety and health of our patients are our number one priority and the strict standards that we have in place follow the laws of the Food and Drug Administration," according to the statement.

"We have helped thousands of patients harness their own healing potential," the statement says. "It would be a mistake to limit these therapies from patients who need them when we are adhering to top industry standards."

But stem-cell researchers praised the FDA's actions.

"This is spectacular," says George Daley, dean of the Harvard Medical School and a leading stem-cell researcher. "This is the right thing to do."

Daley praised the FDA's promise to provide clear guidance soon for vetting legitimate stem-cell therapies while cracking down on "snake-oil salesmen" marketing unproven treatments.

Stem-cell research is "a major revolution in medicine. It's bound to ultimately deliver cures," Daley says. "But it's so early in the field," he adds. "Unfortunately, there are unscrupulous practitioners and clinics that are marketing therapies to patients, often at great expense, that haven't been proven to work and may be unsafe."

Others agreed.

"I see this is a major, positive step by the FDA," says Paul Knoepfler, a professor of cell biology at the University of of California, Davis, who has documented the proliferation of stem-cell clinics.

"I'm hoping that this signals a historic shift by the FDA to tackle the big problem of stem-cell clinics selling unapproved and sometimes dangerous stem cell "treatments" that may not be real treatments," Knoepfler says.

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Doubts raised about CRISPR gene-editing study in human embryos – Nature.com

Posted: September 2, 2017 at 5:43 am

Doubts have surfaced about a landmark paper claiming that human embryos were cleared of a deadly mutation using genome editing. In an article1 posted to the bioRxiv preprint server on 28 August, a team of prominent stem-cell scientists and geneticists question whether the mutation was actually fixed.

The 2 August Nature paper2, led by reproductive biologist Shoukhrat Mitalipov at the Oregon Health and Science University in Portland, described experiments in dozens of embryos to correct a mutation that causes a heart condition called hypertrophic cardiomyopathy.

In contrast to previous human-embryo editing studies, Mitalipovs team reported a high success rate at correcting a disease-causing mutation in a gene. The team claimed that the CRISPRCas9 genome editing tool was able to replace a mutant version of the MYBPC3 gene carried by sperm with a normal copy from the egg cell, yielding an embryo with two normal copies. Mitalipovs team also introduced a healthy version of the gene along with the CRISPR machinery, but they found that the corrected embryos had shunned it for the maternal version.

But there is reason to doubt whether this really occurred, reports a team led by Dieter Egli, a stem-cell scientist at Columbia University in New York City, and Maria Jasin, a developmental biologist at Memorial Sloan Kettering Cancer Center in New York City. George Church, a geneticist at Harvard Medical School in Boston, Massachusetts, is another co-author.

In their bioRxiv paper, Egli and Jasin and their co-authors say that there is no plausible biological mechanism to explain how a genetic mutation in sperm could be corrected based on the eggs version of the gene. More likely, they say, Mitalipovs team failed to actually fix the mutation and were misled into thinking they had by using an inadequate genetics assay. Egli and Jasin declined to comment because they say they have submitted their article to Nature.

The critique levelled by Egli et al. offers no new results but instead relies on alternative explanations of our results based on pure speculation, Mitalipov said in a statement.

But other scientists contacted by Nature's news team shared the Egli team's concerns. (Natures news team is editorially independent of its journal team.) Reproductive biologist Anthony Perry at the University of Bath, UK, says that after fertilization, the genomes of the egg and sperm reside at opposite ends of the egg cell, and each is enshrouded in a membrane for several hours. This fact, Perry says, would make it difficult for CRISPR-Cas9 to fix the sperms mutation based on the eggs version of the gene, using a process called homologous recombination. Its very difficult to conceive how recombination can occur between parental genomes across these huge cellular distances, he says.

Egli and Jasin raise that issue in their paper. They suggest that Mitalipovs team was misled into believing that they had corrected the mutation by relying on a genetic assay that was unable to detect a far likelier outcome of the genome-editing experiment: that CRISPR had instead introduced a large deletion in the paternal gene that was not picked up by their genetic assay. The Cas9 enzyme breaks DNA strands, and cells can attempt to repair the damage by haphazardly stitching the genome together, often resulting in missing or extra DNA letters.

That explanation makes sense, says Gatan Burgio, a geneticist at the Australian National University in Canberra. In my view Egli et al. convincingly provided a series of compelling arguments explaining that the correction of the deleterious mutation by self repair is unlikely to have occurred.

Another possibility Eglis team raise is that the embryos were produced without a genetic contribution from sperm, a process known as parthenogenesis. Mitalipovs team showed that the paternal genome was present in only 2 out of the 6 embryonic stem cell lines they made from gene-edited embryos.

Robin Lovell-Badge, a developmental biologist at the Francis Crick Institute in London, says that it is possible that there is a novel or unsuspected biological mechanism at work in the very early human embryo that could explain how Mitalipovs team corrected the embryos genomes in the manner claimed. He would first like to hear from Mitalipov before passing judgement. It simply says that we need to know more, not that the work is unimportant, Lovell-Badge says of Egli and Jasins paper.

In the statement, Mitalipovs said his team stands by their results. We will respond to their critiques point by point in the form of a formal peer-reviewed response in a matter of weeks.

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For Lowell native, stem cell match becomes a match as friends – Lowell Sun

Posted: September 2, 2017 at 5:43 am

From left to right: Richard Stone, a doctor at Dana-Farber Cancer Institute in Boston, poses with Peter Karalekas (center), 76, and Matthew Churitch, 22. Churitch donated stem cells to Karalekas two years ago, and he visited Dana-Farber with Karalekas earlier this summer. (Courtesy photo)

BOSTON -- After winding his way through Massachusetts, Connecticut, New Hampshire and Maine for 76 years, Peter Karalekas has a proclamation: He's a Southerner now.

He still lives in Kittery, Maine, just about an hour from the Lowell middle school where he taught for 21 years.

He has no plans to move.

Rather, Karalekas considers himself a Southerner because of his stem cells.

He never exactly felt all that sick.

Karalekas worked tirelessly for decades, first as a teacher and coach at the James S. Daley Middle School in Lowell and then as the owner of a half-dozen T-Bones restaurants across New Hampshire.

Even despite the 12-hour days, seven days a week, in the grind of the restaurant industry, Karalekas felt healthy and rarely fell ill.

Peter Karalekas, left, a 76-year-old former Lowellian, smiles during his first meeting with Matthew Churitch, 22, of Nashville, Tennessee, who helped save Karalekas life by donating stem cells. (Courtesy photo)

The two, who do not have children, moved to Kittery 17 years ago.

Everything started to change in 2014.

Karalekas recalls being "short-winded," but he had very few other symptoms when he was diagnosed with myelodysplastic syndrome, a rare type of cancer in which the bone marrow is damaged and cannot produce enough blood cells.

The prognosis was not good.

"They said the only thing that would save me was a stem cell transplant," Karalekas said. "Otherwise, I had a couple of months to live, because my cells were all dropping drastically.

He went onto a registry, hoping for a donor to pop up, but doctors told him it could take from six months to two years to find the right match. Even with a transplant, Karalekas said, his chances of success were "30 to 40 percent."

The call came four weeks later.

Matthew Churitch got his call quickly, too.

He joined the National Marrow Donor Program's Be the Match Registry in 2014, the summer between his freshman and sophomore years at Clemson University. His mother had been on the registry to donate for years. Churitch's decision was simple: When a friend was diagnosed with leukemia, he knew he should sign up, too.

He did the requisite cheek swab, unsure if he would ever even be contacted to donate. By the time he had finished the following semester, he got the call.

A match was found.

Churitch went through several more levels of testing and preparation to donate stem cells to a stranger. He went to Clemson's student health center to have blood drawn.

He returned to his native Nashville, Tennessee, going to a medical center 10 days in a row to receive shots in his stomach that would stimulate his bone marrow and prepare his cells for transplant.

He sat for eight hours, a needle in each arm as his stem cells were filtered out so they could be transferred to Boston.

"Getting the shots isn't fun," he said. "You're pretty sore afterward for a few weeks. But knowing that the person on the other end is in hundreds and hundreds times more pain than any donor would ever go through -- that kind of pushed me through."

Karalekas and Churitch first connected via an anonymous letter, per the transplant registry's rules, updating Churitch on Karalekas's lengthy, isolated recovery. They were able to speak directly after a year.

Churitch dialed Karalekas' number on a lengthy walk to class, took a deep breath and hit the call button. Moments later, both men were crying and laughing.

"That was really awesome, just being able to hear his voice and recognize that there's somebody else on the other end of this," Churitch said. "A lot of people don't get the chance to connect with their recipients or their donors."

Karalekas wanted more. He told his wife early on that he wanted to meet his "angel from heaven," so when Churitch graduated Clemson earlier this year, Karalekas paid to bring the 22-year-old and his mother to New England.

In late June, Karalekas and his wife pulled into a pickup lane at Logan International Airport in Boston.

"I got out of the car, I charged over, and I gave them both a huge hug," Karalekas said.

Karalekas showed Churitch and his mother around for five days.They went on a private tour of Fenway Park; they wandered the historic streets of Portsmouth, New Hampshire; they visited Dana-Farber together to meet the team that treated Karalekas.

Both families quickly bonded. Karalekas recalls his brother George asking Churitch about his portable phone charger, expressing curiosity about how convenient it was. A few weeks later, a brand-new portable charger arrived at George's door, a gift from Churitch.

In January, Karalekas and his wife will vacation in Arizona and will cheer on Churitch's mother -- without Churitch even present -- in the Phoenix Marathon.

Donor and recipient talk every week.

"It's like we're a very, very close-knit family now," Karalekas said. "He's the son we never had."

Churitch is now in his first year at the University of South Carolina School of Medicine Greenville with hopes of becoming a physician. He hopes to use Karalekas's experience as inspiration for any patients facing future hardship, and he hopes that others, especially young people, will see their success and join the registry.

"You never know where that will take you," he said. "You can gain a friend for life, impact somebody and their family in need."

Karalekas said he feels he has a new life: His chances of beating the disease are now 97 percent, he says, up from the 30 percent or 40 percent when he started treatment. Thanks to the transplant from a handsome, athletic college student in Tennessee.

"I said, 'I'm a Southerner now,'" Karalekas said. "My stem cells are 99 percent this gentleman. I'm 99 percent him."

Follow Chris on Twitter @ChrisLisinski.

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For Lowell native, stem cell match becomes a match as friends - Lowell Sun

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Lymphoma Patient’s Brain Tumor Disappeared After She Received JCAR017, Study Reports – Lymphoma News Today

Posted: September 2, 2017 at 5:43 am

Juno Therapeutics immunotherapy JCAR017 eliminated a brain tumor in a patient whose lymphoma had spread to her brain, researchers at Massachusetts General Hospital Cancer Centerreported.

The team wrote about the case, which involved a 68-year-old woman withprimary refractory diffuse large B-cell lymphoma (DLBCL), in theNew England Journal of Medicine.The article was titled Anti-CD19 CAR T Cells in CNS Diffuse Large-B-Cell Lymphoma.

Researchers said the patient had failed to respond to chemotherapy with etoposide, doxorubicin, cyclophosphamide with vincristine, and prednisone with Rituxan (rituximab). Doctors then tried four additional therapies, including a stem cell transplant but all failed to stop the cancer.

The women then enrolled in a clinical trial that was testing JCAR017 (NCT02631044) against cancer. The treatment involves using immune-system T-cells to target cancer originating in another component of the immune system, B-cells.

The immunotherapys chimeric antigen receptor (CAR) T-cells go after the protein CD19, which appears on the surface of almost all cancers originating in B-cells. The treatment allows the T-cells to recognize and destroy the cancer cells.

At the time of the clinical trial, the patient was not on an immunosuppressive therapy.

She also did not have graft-versus-host disease (GVHD), indicating that her body was not rejecting the stem cell transplant. Just before she started the trial, a scan showed that she had a new brain lesion, suggesting that the stem cell transplant was not working. A different kind of scan confirmed the lesion.

The patient started the trial with a high dose of chemotherapy that eliminated parts of her immune system and primed her body to receive CAR T-cells. Then she received JCAR017. She experienced no adverse events from the procedure, including no release of inflammatory cytokines, no neurotoxic effects, and no GVHD.

Amazingly, a month later, two kinds of brain scans showed complete remission of her cancer.

A blip occurred two months later, when scans showed her cancer had returned. But after an incisional biopsy of the tumor, which isa very minor procedure, the tumor started receding again without needing further therapy. Researchers said the shrinking correlated with an expansion in the number of CAR T-cells in her system.

A month later, another scan showed complete remission again. This time the response was durable: The patient continues to be in remission at 12 months.

Many cancer therapies are unable topass through the blood-brain barrier to treat brain cancers. But scientists have found CAR T-cells in cerebrospinal fluid, indicating they can pass through the barrier, which the body uses to prevent harmful invaders from getting to the brain.

Brain involvement in DLBCL carries a grave prognosis, and the ability to induce a complete and durable response with conventional therapies is rare, Dr. Jeremy Abramson, of the Massachusetts General Hospital Cancer Center, said in a press release.

In addition, all available CAR T-cell trials have excluded patients with central nervous system involvement, said Abramson, who wrote the New England Journal of Medicine article. This result has implications not only for secondary DLBCL like this case, but also for primary central nervous system lymphoma, for which treatment options are similarly limited after relapse and few patents are cured.

In an intriguing finding, the CAR T-cells expanded in the patient again months after the initial administration of JCAR017. This implied that something about the biopsy procedure had triggered an expansion of the CAR T-cell population that led to the regression of the tumor.

Typically the drugs we use to fight cancer and other diseases wear off over time, Abramson said. This spontaneous re-expansion after biopsy highlights this therapy as something entirely different, a living drug that can re-expand and proliferate in response to biologic stimuli.

The team said that studying ways of reactivating CAR T-cells could make them even more effective.

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Lymphoma Patient's Brain Tumor Disappeared After She Received JCAR017, Study Reports - Lymphoma News Today

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