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U. of Mich. in row on stem cell research

Posted: March 24, 2012 at 12:47 am

Published: March. 22, 2012 at 4:15 PM

LANSING, Mich., March 22 (UPI) -- Republican state legislators say the University of Michigan could lose some funding if it does not answer questions about stem cell research.

Language was attached to last year's budget that requires the university to inform the legislature how many stem cell lines it has created and has on hand as well as numbers of embryos and research projects.

Lawmakers on a subcommittee dealing with the issue accused university officials of "thumbing their nose" at the Legislature, the Detroit Free Press reported.

They have said the university could be stripped of some state aid.

"If we roll over, I think it will have a precedent effect, and we'd be really weakening the power of the Legislature," said state Rep. Kevin Cotter, a Republican from Mount Pleasant.

The university is the only one in the state involved in stem cell research. President Mary Sue Coleman said the university sent 50 to 60 pages of information on stem cell research because officials wanted to put the numbers in context. But legislators complain the specific numbers the university is required to give were not there.

"We believe it's just not possible to boil down this incredibly important work to a series of data points," said Rick Fitzgerald, a university spokesman. "We are emphatic about putting our stem-cell research in the context of its potential to cure diseases and save lives. That's what we did when we provided a bit more information than what the Legislature sought."

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Embryonic stem cells shift metabolism in a cancer-like way upon implanting in the uterus

Posted: March 23, 2012 at 7:20 pm

Shortly after a mouse embryo starts to form, some of its stem cells undergo a dramatic metabolic shift to enter the next stage of development, Seattle researchers report today. These stem cells start using and producing energy like cancer cells.

Hanelle Ruohola-Baker lab

A microscopic image from the mouse embryonic stem cell metabolism study.

This discovery is published today in EMBO, the European Molecular Biology Organization journal.

These findings not only have implications for stem cell research and the study of how embryos grow and take shape, but also for cancer therapy, said the senior author of the study, Dr. Hannele Ruohola-Baker, University of Washington professor of biochemistry. The study was collaborative among several research labs in Seattle.

The metabolic transition they discovered occurs very early as the mouse embryo, barely more than a speck of dividing cells, implants in the mothers uterus. The change is driven by low oxygen conditions, Ruohola-Baker explained.

The researchers also saw a specific type of biochemical slowdown in the stem cells mitochondria the cells powerhouses. The phenomenon previously was associated with aging and disease. This was the first example of the same downshift controlling normal early embryonic development.

This downshift coincides with the time when the germ line, the keeper of the genome for the next generation, is set aside, Ruohola-Baker said.. Hence reduction of mitochondrial reactive oxygen species may be natures way to protect the future.

Embryonic stem cells are called pluripotent because they have the ability to renew themselves and have the potential to become any cell in the body. Self-sustaining and versatile are qualities necessary for the growth, repair and maintenance of the body and for regenerative medicine therapies.

Although they share these sought-after qualities, Pluripotent stem cells come in several flavors, Ruohola-Baker explained. They differ in subtle ways that expand or shrink their capacities as the raw living material from which animals are shaped.

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Stem Cells and Regenerative Medicine for Cardiac Care by Dr. Victor Dzau – Video

Posted: March 23, 2012 at 7:20 pm

22-03-2012 12:16 Dr. Victor Dzau is a physician and pioneering translational research scientist, and is widely recognized as one of the most influential medical leaders worldwide. He is currently the James B. Duke Professor of Medicine at Duke University and the President and CEO of Duke University Health System. Dr. Dzau's groundbreaking research established the curent understanding of the renin-angiotensin system, which is now known to underlie a wide range of heart and blood vessel diseases, from hypertension to heart failure. His work led directly to the development of drugs that inhibit this system, that now represent the foundation of modern medical therapy for many cardiac disorders. Dr. Dzau continues to lead an innovative and productive reseach lab, pioneering innovative stem cell and genetic treatments for heart and blood vessel diseases. Dr. Dzau has received numerous honors for his contributions to research and medicine, including the 2011 Henry G. Friesen International Prize in Health Research.

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Stem Cell Transplant Program Offered at UVA Medical Center

Posted: March 23, 2012 at 2:46 am

What used to be medical trash is now treating cancer. The University of Virginia's Medical Center is the first place in Virginia to take advantage of stem cells from umbilical cords and they are pleased with the results.

Dr. Mary Laughlin, the director of stem cell transplantation at UVA,said, "These are cells that are routinely thrown away, these cells save lives."

A lab within the UVA Medical Center contains numerous tubes where non-embryonic stem cells reside. They come from umbilical cord blood and give hope topatients suffering leukemia, multiple myeloma and lymphoma.

Dr. Laughlin added, "They can completely replace a patient's bone marrow in the immune system. Oneof 10 cancer patients are able to find those cells through existing adult registries."

Thefive million babies that are born each year will soon solve that problem. The cells that are normally tossed out attack cancer cells.

Denise Mariconda, a nurse within the stem cell transplant program, stated, "It looks like a blood transfusion." Dr. Laughlin added, "It is in many ways like a cancer vaccine."

The first transplants were made in January and the transplant program at the UVA Medical Center admits it takes getting used to.

Mariconda said, "It is a process that's not like having your heart fixed in a one-day setting and you know that it's better."

These cells are not cause for controversy. Dr. Laughlin said, "Use of cord-blood is approved by all religious groups including the Vatican."

Babies' immune systems are not fully educated at the time of birth, making these cells effective. Dr. Laughlin, added, "That allows us to cross transplant barriers."

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Somatic stem cells obtained from skin cells; pluripotency ‘detour’ skipped

Posted: March 23, 2012 at 2:46 am

ScienceDaily (Mar. 22, 2012) Breaking new ground, scientists at the Max Planck Institute for Molecular Biomedicine in Mnster, Germany, have succeeded in obtaining somatic stem cells from fully differentiated somatic cells. Stem cell researcher Hans Schler and his team took skin cells from mice and, using a unique combination of growth factors while ensuring appropriate culturing conditions, have managed to induce the cells' differentiation into neuronal somatic stem cells.

"Our research shows that reprogramming somatic cells does not require passing through a pluripotent stage," explains Schler. "Thanks to this new approach, tissue regeneration is becoming a more streamlined -- and safer -- process."

Up until now, pluripotent stem cells were considered the 'be-all and end-all' of stem cell science. Historically, researchers have obtained these 'jack-of-all-trades' cells from fully differentiated somatic cells. Given the proper environmental cues, pluripotent stem cells are capable of differentiating into every type of cell in the body, but their pluripotency also holds certain disadvantages, which preclude their widespread application in medicine. According to Schler, "pluripotent stem cells exhibit such a high degree of plasticity that under the wrong circumstances they may form tumours instead of regenerating a tissue or an organ." Schler's somatic stem cells offer a way out of this dilemma: they are 'only' multipotent, which means that they cannot give rise to all cell types but merely to a select subset of them -- in this case, a type of cell found in neural tissue -- a property, which affords them an edge in terms of their therapeutic potential.

To allow them to interconvert somatic cells into somatic stem cells, the Max Planck researchers cleverly combined a number of different growth factors, proteins that guide cellular growth. "One factor in particular, called Brn4, which had never been used before in this type of research, turned out to be a genuine 'captain' who very quickly and efficiently took command of his ship -- the skin cell -- guiding it in the right direction so that it could be converted into a neuronal somatic stem cell," explains Schler. This interconversion turns out to be even more effective if the cells, stimulated by growth factors and exposed to just the right environmental conditions, divide more frequently. "Gradually, the cells lose their molecular memory that they were once skin cells," explains Schler. It seems that even after only a few cycles of cell division the newly produced neuronal somatic stem cells are practically indistinguishable from stem cells normally found in the tissue.

Schler's findings suggest that these cells hold great long-term medical potential: "The fact that these cells are multipotent dramatically reduces the risk of neoplasm formation, which means that in the not-too-distant future they could be used to regenerate tissues damaged or destroyed by disease or old age; until we get to that point, substantial research efforts will have to be made." So far, insights are based on experiments using murine skin cells; the next steps now are to perform the same experiments using actual human cells. In addition, it is imperative that the stem cells' long-term behaviour is thoroughly characterized to determine whether they retain their stability over long periods of time.

"Our discoveries are a testament to the unparalleled degree of rigor of research conducted here at the Mnster Institute," says Schler. "We should realize that this is our chance to be instrumental in helping shape the future of medicine." At this point, the project is still in its initial, basic science stage although "through systematic, continued development in close collaboration with the pharmaceutical industry, the transition from the basic to the applied sciences could be hugely successful, for this as well as for other, related, future projects," emphasizes Schler. This, then, is the reason why a suitable infrastructure framework must be created now rather than later. "The blueprints for this framework are all prepped and ready to go -- all we need now are for the right political measures to be ratified to pave the way towards medical applicability."

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The above story is reprinted from materials provided by Max-Planck-Gesellschaft.

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Stem Cell Therapy Used To Treat 9/11 Search And Rescue Dog

Posted: March 23, 2012 at 2:44 am

ANNAPOLIS, Md. (WJZ)One of the last search and rescue dogs from 9/11 lives here in Maryland. She was suffering from a painful condition until her owner took action with breakthrough technology.

Mary Bubala has the story.

Red is a search and rescue dog from Annapolis, but has traveled across the country. Her missions include Hurricane Katrina, the La Plata tornadoes and the Pentagon after 9/11.

They credit them with finding 70 percent of the human remains so that helped a whole lot of those families actually get closure, said Heather Roche, Reds owner.

Sept. 11 was Reds first search. Today shes one of the last 9/11 search and rescue dogs still alive.

She retired last summer due to severe arthritis.

It would be nice if her arthritis, if she felt better, that she could do those kinds of things that she misses, Reds owner said while fighting back tears. Alright I am going to cry.

Roche did some research and found an animal hospital in northern Virginia that uses breakthrough stem cell therapy to treat arthritis in dogs.

The Burke Animal Clinic is one of just a few across the country that use stem cell therapy.

The vet harvests 1 to 2 ounces of the dogs fatty tissue, activates the stem cells and then injects them back into the troubled areas.

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First Stem Cell Transplants in Virginia Performed at UVA

Posted: March 22, 2012 at 7:35 pm

The Stem Cell Transplant Program at the University of Virginia Health System recently performed the first two stem cell transplants in Virginia, using non-embryonic stem cells from umbilical cord blood.

The program offers both bone marrow and stem cell transplants, with a focus on cord blood, to treat leukemia, lymphoma, Hodgkins disease and other blood diseases.

While it will take several months to know how effective the cord blood transplants were, the initial results are promising, says Mary Laughlin, MD, an internationally known stem cell expert recruited to UVA to head the program. In both patients, the stem cells began engrafting producing new cells 14 days after the transplant instead of the 24 to 28 days it normally takes.

Why cord blood stem cells? As an obstetrician once told Laughlin: Something thrown away in my OB suite saves a life in your cancer suite.

The cord blood used for these stem cell transplants comes from placentas that otherwise would be discarded following childbirth, Laughlin says. The cord blood is used with the permission of the new parents, she says. By using cord blood stem cells instead of embryonic stem cells, UVAs program sidesteps the ethical, religious and political concerns commonly associated with stem cells, she says.

Other benefits: Cord blood stem cells are also faster and easier to collect than stem cells from other sources; they are also immune tolerant.

Speed is important because there is a narrow window of opportunity to perform a transplant when a patients disease is in remission. And because the cord blood stem cells are immune tolerant meaning they will not attack other cells in the body the chances of a successful transplant are higher and the donor match doesnt have to be as exact, giving more patients the opportunity to receive a transplant.

Stem cell transplants: Part of a fast-growing program Laughlin heads up a team of 29 staff members, including four additional transplant physicians, who began seeing patients in September. The demand for transplants has already been greater than Laughlin and her team expected. The program had initially planned to do 15 transplants in its first year. Instead, it expects to do 100.

Its reflective of this unmet need, Laughlin says. Patients who otherwise would have to travel many states away to have these same procedures, now they can do a fairly short drive from Roanoke, or down from Winchester. Because of our central location, its ideal for them.

What are stem cells? Learn more about how they work.

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First Stem Cell Transplants in Virginia Performed at UVA

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Procognia Announced That the Feasibility Stage of the Company's Research in Stem Cells in Cooperation with the …

Posted: March 22, 2012 at 7:35 pm

TEL-AVIV, Israel--(BUSINESS WIRE)--

Procognia (TASE:PRCG) is pleased to announce that the feasibility stage of the research, which focused on the glycosylation structures of stem cells, has been successfully completed. The research, directed by Prof. Dov Zipori from the Weizmann Institute of Science, was designed to develop a platform that will significantly improve the ability to identify and develop unique stem cells for transplant and treatment. Today, stem cell treatment faces a number of challenges, which both parties aim to handle successfully and therefore make a significant contribution to this field.

The feasibility stage focused on mesenchymal stem cells, and the results displayed the ability to:

Each of the above factors has the potential to significantly improve the abilities of the medical and scientific communities to successfully use stem cells for effective, successful transplants and medical treatment. In cooperation with Yeda Research & Development, the commercial arm of the Weizmann Institute, Procognia has submitted a US patent that covers the research and its unique findings.

According to the results of the feasibility stage, Procognia will continue its research with Prof. Zipori to develop a platform that will:

Mesenchymal stem cells migrate towards tumors and affect them, and therefore can also be used as carriers for drugs that will affect the tumors.

Within the framework of the agreement, Procognia has the option to commercialize products for diagnostic and therapeutic uses on the basis of the joint development process, in exchange for Yeda Research & Development receiving appropriate royalties.

Procognia estimates that the development stage of this platform will take approximately two years.

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A new shortcut for stem cell programming

Posted: March 22, 2012 at 7:35 pm

Public release date: 22-Mar-2012 [ | E-mail | Share ]

Contact: Dr. Frank Edenhofer f.edenhofer@uni-bonn.de 49-228-688-5529 University of Bonn

These stem cells can reproduce and be converted into various types of brain cells. To date, only reprogramming in brain cells that were already fully developed or which had only a limited ability to divide was possible. The new reprogramming method presented by the Bonn scientists and submitted for publication in July 2011 now enables derivation of brain stem cells that are still immature and able to undergo practically unlimited division to be extracted from conventional body cells. The results have now been published in the current edition of the prestigious journal Cell Stem Cell.

The Japanese stem cell researcher Professor Shinya Yamanaka and his team produced stem cells from the connective tissue cells of mice for the first time in 2006; these cells can differentiate into all types of body cells. These induced pluripotent stem cells (iPS cells) develop via reprogramming into a type of embryonic stage. This result made the scientific community sit up and take notice. If as many stem cells as desired can be produced from conventional body cells, this holds great potential for medical developments and drug research. "Now a team of scientists from the University of Bonn has proven a variant for this method in a mouse model," report Dr. Frank Edenhofer and his team at the Institute of Reconstructive Neurobiology (Director: Dr. Oliver Brstle) of the University of Bonn. Also involved were the epileptologists and the Institute of Human Genetics of the University of Bonn, led by Dr. Markus Nthen, who is also a member of the German Center for Neurodegenerative Diseases.

Edenhofer and his co-workers Marc Thier, Philipp Wrsdrfer and Yenal B. Lakes used connective tissue cells from mice as a starting material. Just as Yamanaka did, they initiated the conversion with a combination of four genes. "We however deliberately targeted the production of neural stem cells or brain stem cells, not pluripotent iPS multipurpose cells," says Edenhofer. These cells are known as somatic or adult stem cells, which can develop into the cells typical of the nervous system, neurons, oligodendrocytes and astrocytes.

The gene "Oct4" is the central control factor

The gene "Oct4" is a crucial control factor. "First, it prepares the connective tissue cell for reprogramming, later, however, Oct4 appears to prevent destabilized cells from becoming brain stem cells" reports the Bonn stem cell researcher. While this factor is switched on during reprogramming of iPS cells over a longer period of time, the Bonn researchers activate the factor with special techniques for only a few days. "If this molecular switch is toggled over a limited period of time, the brain stem cells, which we refer to as induced neural stem cells (iNS cells), can be reached directly," said Edenhofer. "Oct4 activates the process, destabilizes the cells and clears them for the direct reprogramming. However, we still need to analyze the exact mechanism of the cellular conversion."

The scientists at the University of Bonn have thus found a new way to reprogram cells, which is considerably faster and also safer in comparison to the iPS cells and embryonic stem cells. "Since we cut down on the reprogramming of the cells via the embryonic stage, our method is about two to three times faster than the method used to produce iPS cells," stresses Edenhofer. Thus the work involved and the costs are also much lower. In addition, the novel Bonn method is associated with a dramatically lower risk of tumors. As compared to other approaches, the Bonn scientists' method stands out due to the production of neural cells that can be multiplied to a nearly unlimited degree.

Low risk of tumor and unlimited self renewal

A low risk of tumor formation is important because in the distant future, neural cells will replace defective cells of the nervous system. A vision of the various international scientific teams is to eventually create adult stem cells for example from skin or hair root cells, differentiate these further for therapeutic purposes, and then implant them in damaged areas. "But that is still a long way off," says Edenhofer. However, the scientists have a rather urgent need today for a simple way to obtain brain stem cells from the patient to use them to study various neurodegenerative diseases and test drugs in a Petri dish. "Our work could form the basis for providing practically unlimited quantities of the patient's own cells." The current study was initially conducted on mice. "We are now extremely eager to see whether these results can also be applied to humans," says the Bonn scientist.

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Vet-Stem Announces StemInsure(R): A Small Fat Sample Now, a Lifetime of Stem Cells Later

Posted: March 22, 2012 at 7:35 pm

POWAY, CA--(Marketwire -03/22/12)- Vet-Stem announced today the introduction of StemInsure. The StemInsure service provides banked stem cells that can be grown to supply a lifetime of stem cell therapy for dogs. One fat collection, in conjunction with another anesthetized procedure, gives access to a lifetime of stem cells.

Vet-Stem has trained over 3,500 veterinarians, provided stem cells for over 8,000 animals in the US and Canada and currently banks more than 25,000 doses for future therapeutic use. Many veterinarians and their clients have requested a method to collect and store stem cells when a dog is young, before it needs the regenerative cells for therapy. StemInsure was designed to meet this need.

A Vet-Stem credentialed veterinarian can collect as little as 5 grams of fat (about the size of a grape) from a dog or puppy during an anesthetized procedure. Many veterinarians and owners are electing to do this fat collection in conjunction with a spay or neuter. This small amount of fat is processed and stem cells are cryopreserved in Vet-Stem's state-of-the-art facility. The cells can be cultured in the future to provide enough stem cells to last for the lifetime of the dog. More information can be found at http://www.vet-stem.com/steminsure.php.

"Vet-Stem is pleased to provide StemInsure as a solution to the thousands of veterinarians and dog owners who recognize the value of Vet-Stem cell therapy. The ability to store the cells in conjunction with another procedure is a great way to ensure that the dog will have access to a lifetime of cell therapy while reducing the number of anesthetic events," said Dr. Bob Harman, DVM, MPVM, and CEO of Vet-Stem. Dr. Harman continued, "Currently, Vet-Stem Regenerative Cell Therapy is widely used to treat osteoarthritis, and tendon/ligament injuries. It is our expectation that the therapeutic use of adipose derived stem cells will continue to expand and add to the value of a lifetime supply of stem cells for dogs."

About Vet-Stem:In January of 2004, Vet-Stem introduced the first veterinary stem cell service in the United States. Since that time there has been rapid adoption of this technology for treatment of tendon, ligament, and joint injuries by the veterinary community. Studies have shown that mesenchymal stem cells can dramatically improve the healing of injuries and diseases that have had very few treatment options in the past.

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