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Ten years in, California's stem cell program is getting a reboot

Posted: January 4, 2015 at 8:40 pm

Turning 10 years old may not quite mark adolescence for a human child, but for a major government research effort such as California's stem cell program, it's well past middle age.

So it's a little strange to hear C. Randal Mills, the new president and chief executive of the program known formally as the California Institute for Regenerative Medicine, say it's time to instill in CIRM "a clear sense of mission."

But that's what Mills is planning for the coming year, as he launches CIRM 2.0, a comprehensive reboot of the program.

Mills, a former biotech company chief executive, took over as CIRM's president last May. His first task, he told me, was to "take a step back and look broadly at how we do our business." He reached the conclusion that "there was a lot of room for improvement."

That's a striking admission for a program that already has allocated roughly two-thirds of its original $3-billion endowment.

Biomedical researchers are sure to find a lot to like about CIRM 2.0, especially Mills' commitment to streamline the program's grant and loan approval process for projects aimed at clinical trials of potential therapies. Reviews of applications take about 22 months on average; Mills hopes to cut that to about three months. The process can be made more efficient without sacrificing science: "We need to do it quickly and also focus on quality," he says in a videotaped presentation on the CIRM website. The CIRM board last month approved a six-month, $50-million round of funding under the new system, all to be aimed at testing new therapies.

Yet the focus on drug development shows that CIRM remains a prisoner of the politics that brought it into existence. The Proposition 71 campaign in 2004 employed inflated promises of cures for Parkinson's disease, Alzheimer's, diabetes and other therapy-resistant conditions to goad California voters into approving the $3-billion bond issue ($6 billion with interest) for stem cell research.

CIRM says it has funded clinical trials of 10 therapies and has backed an additional 87 projects "in the later stages of moving toward clinical trials." In scientific terms that's progress, but it may fall short of the public expectations of "cures" stoked by the initiative's promoters 10 years ago.

And that poses a political problem. At its current rate of grant and loan approvals of about $190 million a year, CIRM has enough funding to last until 2020. What happens after that is an open question, but any campaign to seek new public funding may depend on CIRM's having a successful therapy to show off to voters.

Mills says winning approval for more public funding isn't the goal of CIRM 2.0. "It's not our job at CIRM to extend the life of CIRM," he told me. Instead, he couches the need for urgency in terms of serving patients. As chief executive of Maryland-based Osiris Therapeutics, where he worked before joining CIRM, he says, he had "a firsthand view into the significance of stem cell treatment, and of how important urgency is in this game." Osiris received approval from the Food and Drug Administration and Canadian regulators for a stem cell drug to treat children with severe complications from bone marrow and other blood transplants.

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Ten years in, California's stem cell program is getting a reboot

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skygen Stem Cells 21 Orthopedic – Video

Posted: January 4, 2015 at 6:41 am


skygen Stem Cells 21 Orthopedic
21ST CENTURY CELLULAR MEDICINE: The Twenty First Century is witnessing a Revolution in. Cellular Medicine - Stem Cell Therapy / Stem Cell Treatments . Thousa...

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Mayo Clinic’s Dr. Shane Shapiro Discussing Latest in Stem Cell Research at #WSCS14 – Video

Posted: January 4, 2015 at 6:41 am


Mayo Clinic #39;s Dr. Shane Shapiro Discussing Latest in Stem Cell Research at #WSCS14
Dr. Shane Shapiro, orthopedic physician, discussing highlights of stem cell research and regenerative medicine from the Mayo Clinic in Florida campus, during...

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Scientists explain how stem cells and 'bad luck' cause cancer

Posted: January 3, 2015 at 4:47 pm

Why are some types of cancer so much more common than others? Sometimes its due to faulty genes inherited from ones parents and sometimes to behaviors like smoking a pack of cigarettes every day. But in most cases, it comes down to something else stem cells.

This is the intriguing argument made by a pair of researchers from Johns Hopkins University. In a study published Friday in the journal Science, they found a very high correlation between the differences in risk for 31 kinds of cancer and the frequency with which different types of stem cells made copies of themselves.

Just how strong was this link? On a scale that goes from 0 (absolutely no correlation) to 1 (exact correlation), biostatistician Cristian Tomasetti and cancer geneticist Bert Vogelstein calculated that it was at least a 0.8. When it comes to cancer, thats high.

No other environmental or inherited factors are known to be correlated in this way across tumor types, Tomasetti and Vogelstein wrote.

Researchers have long recognized that when cells copy themselves, they sometimes make small errors in the billions of chemical letters that make up their DNA. Many of these mistakes are inconsequential, but others can cause cells to grow out of control. That is the beginning of cancer.

The odds of making a copying mistake are believed to be the same for all cells. But some kinds of cells copy themselves much more often than others. Tomasetti and Vogelstein hypothesized that the more frequently a type of cell made copies of itself, the greater the odds that it would develop cancer.

The pair focused on stem cells because of their outsized influence in the body. Stem cells can grow into many kinds of specialized cells, so if they contain damaged DNA, those mistakes can spread quickly.

The researchers combed through the scientific literature and found studies that described the frequency of stem cell division for 31 different tissue types. Then they used data from the National Cancer Institutes Surveillance, Epidemiology and End Results database to assess the lifetime cancer risk for each of those tissue types. When they plotted the total number of stem cell divisions against the lifetime cancer risk for each tissue, the result was 31 points clustered pretty tightly along a line.

To put this notion in concrete terms, consider the skin. The outermost layer of the skin is the epidermis, and the innermost layer of the epidermis contains a few types of cells. Basal epidermal cells are the ones that copy themselves frequently, with new cells pushing older ones to the skins surface. Melanocytes are charged with making melanin, the pigment that protects the skin from the suns damaging ultraviolet rays.

When sunlight hits bare skin, both basal epidermal cells and melanocytes get the same exposure to UV. But basal cell carcinoma is far more common than melanoma about 2.8 million Americans are diagnosed with basal cell carcinoma each year, compared with roughly 76,000 new cases of melanoma, according to the Skin Cancer Foundation. A major reason for this discrepancy, Tomasetti and Vogelstein wrote, is that epidermal stem cells divide once every 48 days, while melanocytes divide only once every 147 days.

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Stem Cell Therapy Fixes Post-Surgical Airway Abnormality

Posted: January 3, 2015 at 4:43 pm

By Steven Reinberg HealthDay Reporter

WEDNESDAY, Dec. 31, 2014 (HealthDay News) -- Using stem cells derived from a patient's own bone marrow, researchers have repaired a fistula -- a potentially fatal tissue abnormality -- in the man's lower airway.

"This is another interesting new therapeutic approach for stem cells," said lead researcher Dr. Francesco Petrella, deputy director of thoracic surgery at the European Institute of Oncology in Milan, Italy.

The patient, a 42-year-old firefighter, developed the fistula after surgeons removed a lung as part of treatment for mesothelioma cancer. A fistula is abnormal tissue connecting an organ, blood vessel or intestine to another structure. In this case, the fistula developed between the lower airway and the tissue that surrounds the lungs.

"Our clinical experience supports the idea that stem cells could be effectively used to close some tissue defects developing after very complex surgical procedures, thus restoring a functioning airway," Petrella said.

A fistula that develops after chest surgery is serious and even deadly, Petrella said. Current treatments involve removing ribs and taking medications for months or years, he explained.

"Less invasive approaches like endoscopic glue injections have only poor results, so our proposed techniques could improve quality of life in these patients," Petrella said.

Sixty days after stem cell therapy, the firefighter's fistula was healed, the researchers said. The hole seen before stem cell therapy was no longer visible, having been replaced by new tissue created by the stem cell implant, they explained.

Some people are born with a fistula. Other causes of fistulas include complications from surgery, injury, infection and diseases, such as Crohn's disease or ulcerative colitis.

Petrella believes that this same stem cell technique could be used to treat fistulas that develop elsewhere in the body.

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Pevonia Launches New Skincare Line, Stem Cells Phyto …

Posted: January 3, 2015 at 11:52 am

DAYTONA BEACH, Fla., July 2, 2014 /PRNewswire/ --In the quest for the ultimate anti-aging solution, plant stem cells are the leaders in skincare innovation, results, and benefits. Pevonia, a worldwide leader in professional spa skincare, introduces advancements in plant stem cell technology with the new Stem Cells Phyto-Elite collection. A breakthrough in phyto-biology with proprietary advanced formulas, Stem Cells Phyto-Elite features two stem cell sources, Argan Tree and European Comfrey Root, which are proven to visibly repair aging skin. Featuring a Multi-Active Foaming Cleanser, an Intensive Serum, and an Intensive Cream, the skincare collection sets higher standards in cellular regeneration by getting to the root cause of skin aging.

With its twounique stem cell sources and a concentration of stem cells that is five to ten times higher than what is currently available, the Pevonia Stem Cells Phyto-Elite collection reduces the look of wrinkles while increasing firmness and providing smoother and more radiant looking skin. Each product in the collection enables maximum absorbency and faster repair activity, plus additional anti-oxidant, protective, and anti-aging benefits for the skin.

"For more than two decades, Pevonia has been committed to creating luxurious products with botanical ingredients that provide real, natural results," said Dr. Jurist of Pevonia International. "We're excited to bring the advanced topical solutions and innovations in our new Stem Cells Phyto-Elite collection and their cutting-edge ingredients into the home to be used daily for optimum results."

Botanical Ingredients for Clinical Results

As we age, the epidermal layer of the skin becomes thinner, rougher, drier and uneven, as skin cells turn over at a slower rate than in youth. Plant stem cells provide a natural solution for aging skin, as these cells are able to repair skin tissue and prolong the lifecycle of human skin cells. To create the Stem Cells Phyto-Elite Collection, Pevonia looked to two specific natural resources for skin rejuvenation and repair the Argan Tree and European Comfrey Root.

A Legacy of Beautiful Skin

The new Pevonia Stem Cells Phyto-Elite collection works from deep within the skin's layers, starting at the dermis, to deliver healthy, ageless looking skin. The collection includes:

All Pevonia products are made with natural and organic extracts, and are alcohol free, gluten free, paraben free, lanolin free, mineral oil free, PABA free, sodium lauryl sulfate free, non-GMO and Mother Earth Approved.

Pevonia Stem Cells Phyto-Elite is available beginning July 2014 at http://www.Pevonia.com and at elite spas worldwide. Please visit http://www.Pevonia.com for additional product information and to find a spa location near you.

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Biological Bad Luck Blamed in Two-thirds of Cancer Cases

Posted: January 3, 2015 at 11:49 am

WASHINGTON

Plain old bad luck plays a major role in determining who gets cancer and who does not, according to researchers who found that two-thirds of cancer incidence of various types can be blamed on random mutations and not heredity or risky habits like smoking.

The researchers said on Thursday random DNA mutations accumulating in various parts of the body during ordinary cell division are the prime culprits behind many cancer types.

They looked at 31 cancer types and found that 22 of them, including leukemia and pancreatic, bone, testicular, ovarian and brain cancer, could be explained largely by these random mutations - essentially biological bad luck.

The other nine types, including colorectal cancer, skin cancer known as basal cell carcinoma and smoking-related lung cancer, were more heavily influenced by heredity and environmental factors like risky behavior or exposure to carcinogens.

Losing the lottery

Overall, they attributed 65 percent of cancer incidence to random mutations in genes that can drive cancer growth.

When someone gets cancer, immediately people want to know why, said oncologist Dr. Bert Vogelstein of the Johns Hopkins University School of Medicine in Baltimore, who conducted the study published in the journal Science with Johns Hopkins biomathematician Cristian Tomasetti.

They like to believe there's a reason. And the real reason in many cases is not because you didn't behave well or were exposed to some bad environmental influence, it's just because that person was unlucky. It's losing the lottery.

Tomasetti said harmful mutations occur for no particular reason other than randomness as the body's master cells, called stem cells, divide in various tissues.

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Fat cells may actually not be so bad

Posted: January 3, 2015 at 11:48 am

January 2, 2015

Credit: Thinkstock

Chuck Bednar for redOrbit.com Your Universe Online

Fat cells located beneath a persons skin could help protect them from bacterial infections, according to a new study published Thursday in the journal Science.

In the study, Dr. Richard Gallo, a professor and chief of dermatology at the University of California, San Diego School of Medicine, and his colleagues report that they had discovered a previously unknown function of these dermal fat cells, also known as adipocytes: they produce antimicrobial peptides that help combat bacteria and other types of pathogens.

It was thought that once the skin barrier was broken, it was entirely the responsibility of circulating (white) blood cells like neutrophils and macrophages to protect us from getting sepsis, explained Gallo. But it takes time to recruit these cells (to the wound site).

We now show that the fat stem cells are responsible for protecting us. That was totally unexpected, he added. It was not known that adipocytes could produce antimicrobials, let alone that they make almost as much as a neutrophil.

A persons body launches a complex, multi-tiered defense against microbial infection, the authors said. Several different types of cells are involved, and the process ends with the arrival of specialized cells known as neutrophils and monocytes that target and destroy pathogens.

Before any of that can happen, a more immediate response is required one that can counter the ability of pathogens to rapidly increase their numbers, however. That task is typically performed by epithelial cells, mast cells and leukocytes residing in the area of infection.

Previous research conducted in Gallos lab detected Staphylococcus aureus, a common type of bacteria and a major source of skin infection on humans, in the fat layer of the skin. Antibiotic-resistant forms of this bacterial have become a significant health issue throughout the world, so the study authors looked to see what role adipocytes played in preventing skin infections.

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Fat cells may actually not be so bad

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The good role fat cells play in protecting us from disease

Posted: January 3, 2015 at 11:48 am

When it comes to skin infections, a healthy and robust immune response may depend greatly upon what lies beneath. In a new paper published in the January 2, 2015 issue ofScience, researchers at the University of California, San Diego School of Medicine report the surprising discovery that fat cells below the skin help protect us from bacteria.

Richard Gallo, MD, PhD, professor and chief of dermatology at UC San Diego School of Medicine, and colleagues have uncovered a previously unknown role for dermal fat cells, known as adipocytes: They produce antimicrobial peptides that help fend off invading bacteria and other pathogens.

"It was thought that once the skin barrier was broken, it was entirely the responsibility of circulating (white) blood cells like neutrophils and macrophages to protect us from getting sepsis," said Gallo, the study's principal investigator.

"But it takes time to recruit these cells (to the wound site). We now show that the fat stem cells are responsible for protecting us. That was totally unexpected. It was not known that adipocytes could produce antimicrobials, let alone that they make almost as much as a neutrophil."

The human body's defense against microbial infection is complex, multi-tiered and involves numerous cell types, culminating in the arrival of neutrophils and monocytes - specialized cells that literally devour targeted pathogens.

Skin graphic image via Shutterstock.

Read more at EurekAlert.

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Eye Researchers Awarded Grant for Stem-Cell Research in …

Posted: January 3, 2015 at 11:47 am

Madison, Wisconsin - A team of researchers based at the University of Wisconsin-Madison will receive a four-year, $250,000 Catalyst Award grant from Research to Prevent Blindness (RPB), in partnership with the International Retinal Research Foundation, to advance stem cell research to treat vision loss from age-related macular degeneration (AMD).

Dr. David M. Gamm, the director of the McPherson Eye Research Institute at the UW School of Medicine and Public Health, will lead the consortium investigating stem-cell approaches for age-related macular degeneration (AMD), which affects more than two million Americans 50 and older.

Dr. Aparna Lakkaraju, also in the UW School of Medicine and Public Health's Department of Ophthalmology and Visual Sciences with Gamm, and Dr. Janis Eells, a professor at the University of Wisconsin-Milwaukee, are the other members of the research team.

The goal is to study how to improve and maintain the health and function of retinal cells - created from induced pluripotent stem cells - before and after they are put into a diseased eye. These donor cells are placed into a hostile environment, where they need to survive and thrive in order to offer hope of a long-term benefit for patients with AMD. To accomplish this goal, they want to maximize the function of mitochondria, the cells energy-producing powerhouses.

There are three key pieces to this study for which we all have important roles, says Gamm. My lab can create unlimited supplies of the needed retinal cells, called retinal pigment epithelium (RPE), from human induced pluripotent stem cells. Dr. Eells is a mitochondria expert and Dr. Lakkaraju is an expert in the study of RPE cells. In addition, we all have expertise in AMD. Its great to be able to work with such world-class collaborators here in Wisconsin.

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