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Stem cells in urine easy to isolate and have potential for numerous therapies

Posted: July 31, 2013 at 2:46 am

Public release date: 31-Jul-2013 [ | E-mail | Share ]

Contact: Karen Richardson krchrdsn@wakehealth.edu 336-716-4453 Wake Forest Baptist Medical Center

WINSTON-SALEM, N.C. July 31, 2013 Could harvesting stem cells for therapy one day be as simple as asking patients for a urine sample? Researchers at Wake Forest Baptist Medical Center's Institute for Regenerative Medicine and colleagues have identified stem cells in urine that can be directed to become multiple cell types.

"These cells can be obtained through a simple, non-invasive low-cost approach that avoids surgical procedures," said Yuanyuan Zhang, M.D., Ph.D., assistant professor of regenerative medicine and senior researcher on the project.

Reporting online in the journal Stem Cells, the team successfully directed stem cells from urine to become bladder-type cells, such as smooth muscle and urothelial, the cells that line the bladder. But the urine-derived cells could also form bone, cartilage, fat, skeletal muscle, nerve, and endothelial cells, which line blood vessels. The multipotency of the cells suggests their use in a variety of therapies.

"These stem cells represent virtually a limitless supply of autologous cells for treating not only urology-related conditions such as kidney disease, urinary incontinence and erectile dysfunction, but could be used in other fields as well," said Zhang. "They could also potentially be used to engineer replacement bladders, urine tubes and other urologic organs."

Being able to use a patient's own stem cells for therapy is considered advantageous because they do not induce immune responses or rejection. However, because tissue-specific cells are a very small subpopulation of cells, they can be difficult to isolate from organs and tissues.

Zhang's team first identified the cells, which are a small subset of the many cells found in urine, in 2006. The current research builds on earlier studies by confirming the multipotency of the cells. In addition, the research found that unlike iPS cells or embryonic stem cells, the urine derived-stem cells do not form tumors when implanted in the body, indicating they may be safe for use in patients.

The research involved obtaining urine samples from 17 healthy individuals ranging in age from five to 75 years. Isolating the cells from urine involves minimal processing, according to the authors. Next, they evaluated the cells' ability to become multiple cell types.

Importantly, the cells differentiated into the three tissue layers (endoderm, ectoderm and mesoderm) that are a hallmark of true stem cells and also differentiated into the specific cell types mentioned earlier.

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Stem cells from urine can be used to create teeth, study shows

Posted: July 31, 2013 at 2:46 am

Scientists have discovered a way to grow teeth from stem cells taken from human urine, Medical Daily reported.

Previous research has demonstrated the possibility for generating induced pluripotent stem cells (iPSCs) from urine samples. Now, in a study published in Cell Regeneration Journal, researchers have detailed how they were able to use these cells to grow structures resembling human teeth in mice models.

The tooth-like structure contained dental pulp, dentin, enamel space and enamel organ," the researchers wrote. "In particular, these regenerative teeth contain enamel with ameloblast-like cells of human origin and possess physical properties found in the regular human tooth. Thus, human [stem cells] could be a candidate source of seed cells on human tooth tissue-engineering for further drug screening or regenerative therapies."

The researchers, from the Guangzhou Institutes of Biomedicine and Health in China, expressed enthusiasm at the possibility of using stem cells from urine in other areas of regenerative medicine as well, Medical Daily reported. However, other experts remain skeptical because of the high-contamination risk for stem cells derived from urine among other reasons.

"It is probably one of the worst sources; there are very few cells in the first place, and the efficiency of turning them into stem cells is very low," Chris Mason, a researcher at University College, London, told reporters. "You just wouldn't do it in this way."

Despite this, the studys authors maintain that their discovery is a strong preliminary step towards the idea that stem cells could eventually be used to address patient-specific dental issues.

Click for more from Medical Daily.

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Stem cells in urine have potential for numerous therapies

Posted: July 31, 2013 at 2:46 am

Stem cells in urine directed to become several different cell types, indicating many therapeutic uses.

Could harvesting stem cells for therapy one day be as simple as asking patients for a urine sample? Researchers at Wake Forest Baptist Medical Center's Institute for Regenerative Medicine and colleagues have identified stem cells in urine that can be directed to become multiple cell types.

"These cells can be obtained through a simple, non-invasive low-cost approach that avoids surgical procedures," said Yuanyuan Zhang, M.D., Ph.D., assistant professor of regenerative medicine and senior researcher on the project.

Reporting online in the journal Stem Cells, the team successfully directed stem cells from urine to become bladder-type cells, such as smooth muscle and urothelial, the cells that line the bladder. But the urine-derived cells could also form bone, cartilage, fat, skeletal muscle, nerve, and endothelial cells, which line blood vessels. The multipotency of the cells suggests their use in a variety of therapies.

"These stem cells represent virtually a limitless supply of autologous cells for treating not only urology-related conditions such as kidney disease, urinary incontinence and erectile dysfunction, but could be used in other fields as well," said Zhang. "They could also potentially be used to engineer replacement bladders, urine tubes and other urologic organs."

Being able to use a patient's own stem cells for therapy is considered advantageous because they do not induce immune responses or rejection. However, because tissue-specific cells are a very small subpopulation of cells, they can be difficult to isolate from organs and tissues.

Zhang's team first identified the cells, which are a small subset of the many cells found in urine, in 2006. The current research builds on earlier studies by confirming the multipotency of the cells. In addition, the research found that unlike iPS cells or embryonic stem cells, the urine derived-stem cells do not form tumors when implanted in the body, indicating they may be safe for use in patients.

The research involved obtaining urine samples from 17 healthy individuals ranging in age from five to 75 years. Isolating the cells from urine involves minimal processing, according to the authors. Next, they evaluated the cells' ability to become multiple cell types.

Importantly, the cells differentiated into the three tissue layers (endoderm, ectoderm and mesoderm) that are a hallmark of true stem cells and also differentiated into the specific cell types mentioned earlier.

Next, the researchers placed cells that had been differentiated into smooth muscle and urothelial cells onto scaffolds made of pig intestine. When implanted in mice for one month, the cells formed multi-layer, tissue-like structures.

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Stem cells in urine have potential for numerous therapies

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StemCells, Inc. Launches Alzheimer’s Disease Program Supported by California Institute for Regenerative Medicine

Posted: July 31, 2013 at 2:46 am

NEWARK, Calif., July 30, 2013 (GLOBE NEWSWIRE) -- StemCells, Inc. (STEM) today announced that it has formally launched its Alzheimer's disease program, which is being supported by the California Institute for Regenerative Medicine (CIRM). The goal of the project is to file, within four years, an Investigational New Drug (IND) application with the U.S. Food and Drug Administration to evaluate the Company's proprietary HuCNS-SC(R) product candidate (purified human neural stem cells) as a potential therapeutic in the treatment of Alzheimer's disease. CIRM has agreed to provide approximately $19.3 million to the Company in the form of a forgivable loan to help fund preclinical development and IND-enabling activities, and the Company recently received an initial disbursement of $3.8 million from CIRM. The funding was awarded under CIRM's Disease Team Therapy Development Award program (RFA 10-05) in September 2012.

"With CIRM's support, we have taken the first steps towards the development of a novel cell-based therapeutic for use in the treatment of Alzheimer's disease," commented Eliseo Salinas, MD, Executive Vice President and Head of Research & Development at StemCells, Inc. "Today, there are no good treatment options for Alzheimer's disease; in particular, there are no approved drugs which alter the progression of the disease. Furthermore, in the past few years, several drugs have failed in late-stage clinical trials. These drugs, like most of the treatments currently in development, target a single modality in a complex disease believed to result from a biological cascade probably triggered by multiple genetic and environmental factors. Cell-based therapies have the potential to provide a therapeutic benefit by acting on several relevant biological targets under the regulation of the host."

"We know from the preclinical work that our proprietary HuCNS-SC cells survive in the toxic environment of the Alzheimer's disease brain and restore memory under the regulation of the host. So rather than targeting a single mechanism in this cascade, our strategy is to provide healthy, self-renewing cells that can halt or slow disease progression and therefore preserve or restore cognitive function. Even a modest slowing of disease progression could translate into substantial improvements in quality of life for patients and families, as well as significant economic savings for society."

StemCells, Inc. will evaluate its HuCNS-SC cells as a potential therapeutic in Alzheimer's disease in collaboration with researchers at the University of California, Irvine (UCI) led by Frank LaFerla, Ph.D., a world-renowned researcher in the field, and Matthew Blurton-Jones, Ph.D. In July 2012, Dr. Blurton-Jones presented data at the Alzheimer's Association Annual Meeting demonstrating that the Company's neural stem cells restored memory and significantly enhanced synaptic function in two animal models relevant to Alzheimer's disease. Importantly, these results were observed in the presence of amyloid deposition and increased tau, two toxic hallmarks of the disease, and provide the basis for a fundamentally different and novel approach to the treatment of Alzheimer's disease.

About Alzheimer's Disease

Alzheimer's disease is a progressive, fatal neurodegenerative disorder that results in loss of memory and cognitive function. Today there is no cure or effective treatment option for patients afflicted by Alzheimer's disease. According to the Alzheimer's Association, approximately 5.4 million Americans have Alzheimer's disease, including nearly half of people aged 85 and older, and the prevalence of the disease is expected to increase rapidly as a result of the country's aging population. Moreover, the costs of the disease to society are significant - recent estimates range from $150 to $200 billion per year in the United States, with approximately three-quarters of those costs resulting from daily care either at home or in nursing facilities.

About CIRM

CIRM was established in November 2004 with the passage of Proposition 71, the California Stem Cell Research and Cures Act. The statewide ballot measure, which provided $3 billion in funding for stem cell research at California universities and research institutions, was overwhelmingly approved by voters, and called for the establishment of an entity to make grants and provide loans for stem cell research, research facilities, and other vital research opportunities. A list of grants and loans awarded to date may be seen here: http://www.cirm.ca.gov/for-researchers/researchfunding.

About StemCells, Inc.

StemCells, Inc. is engaged in the research, development, and commercialization of cell-based therapeutics and tools for use in stem cell-based research and drug discovery. The Company's lead therapeutic product candidate, HuCNS-SC(R) cells (purified human neural stem cells), is currently in development as a potential treatment for a broad range of central nervous system disorders. In a Phase I clinical trial in Pelizaeus-Merzbacher disease (PMD), a fatal myelination disorder in children, the Company has shown preliminary evidence of progressive and durable donor-derived myelination in all four patients transplanted with HuCNS-SC cells. The Company is also conducting a Phase I/II clinical trial in chronic spinal cord injury in Switzerland and Canada and has reported positive interim data for the first three patients. The Company is also conducting a Phase I/II clinical trial in dry age-related macular degeneration (AMD), and is pursuing preclinical studies in Alzheimer's disease. StemCells also markets stem cell research products, including media and reagents, under the SC Proven(R) brand. Further information about StemCells is available at http://www.stemcellsinc.com.

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StemCells, Inc. Launches Alzheimer's Disease Program Supported by California Institute for Regenerative Medicine

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Part 2 Stem Cell Therapy – Video

Posted: July 31, 2013 at 2:44 am


Part 2 Stem Cell Therapy

By: Tiffany Vinson

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Part 2 Stem Cell Therapy - Video

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Quadriceps Disruption-Stem Cells-National Over 50 Bodybuilding Champion 2008 – Video

Posted: July 30, 2013 at 2:44 pm


Quadriceps Disruption-Stem Cells-National Over 50 Bodybuilding Champion 2008
Bob, a 54 year old bodybuilder who 2 years before won the National Over-50 bodybuilding championship and one year earlier won the over- 50 North American cha...

By: William Bennett

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Quadriceps Disruption-Stem Cells-National Over 50 Bodybuilding Champion 2008 - Video

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TheArcadiumCast plays Binding of Isaac – Flying With Stem Cells and Googly Eyes – Video

Posted: July 30, 2013 at 2:44 pm


TheArcadiumCast plays Binding of Isaac - Flying With Stem Cells and Googly Eyes
Binding of Isaac, a Zelda-esque top-down challenging game, is what Tyler is playing today on TheArcadiumCast. He goes through things like chests where Isaa...

By: TheArcadiumCast

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TheArcadiumCast plays Binding of Isaac - Flying With Stem Cells and Googly Eyes - Video

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Laura Wu – High School Stem Cell Research Intern – Summer 2013 – Video

Posted: July 30, 2013 at 2:44 pm


Laura Wu - High School Stem Cell Research Intern - Summer 2013
Visit our Through Their Lens page for photos and more videos from students and grantees: http://www.cirm.ca.gov/instagram-CIRMStemCellLab-feed Laura Wu is a ...

By: California Institute for Regenerative Medicine

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Laura Wu - High School Stem Cell Research Intern - Summer 2013 - Video

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Mikaela Esquivel – High School Stem Cell Research Intern Summer 2013, Video Project 2 – Video

Posted: July 30, 2013 at 2:44 pm


Mikaela Esquivel - High School Stem Cell Research Intern Summer 2013, Video Project 2
Dr. Lorenz, Stanford University Convent of the Sacred Heart High School.

By: California Institute for Regenerative Medicine

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California Stem Cell Agency Looking for New Home in Two Years

Posted: July 30, 2013 at 2:39 pm

The California stem cell agency is located south of Market Street in San
 Francisco, close to the San Francisco Giants ballpark(upper right).  Since
 the agency has been there, the area has grown from seedy to gentrified. 
Some not-so-good news surfaced today in
San Francisco involving the $3 billion California stem cell agency.
The news has little to do with its
science efforts but everything to do with where it is located and its
overhead expenses. The agency will be forced out of its free office
space – 20,000 square feet – in two years. The free space was
provided under an $18 million recruitment package and is worth at
least $1 million a year, according to the agency's auditors.
The bad news is that the San Francisco
office-space market is sizzling hot. Google, Yahoo, Microsoft and
other technology firms are scrambling for space in
Baghdad-by-the-Bay, as the city is sometimes known. According to a story this morning by James Temple in the San Francisco Chronicle,
the firms are looking for a total of about 800,000 square feet and
are prepared to pay well for it.
One nearly completed deal involving
Yahoo would cost about $48 per square foot for a 10-year lease. If
CIRM paid at that rate, it would have nearly $1 million in additional
costs annually. However, leasing rates are expected to rise substantially in the next year or so. Also involved in a move would
be the cost of parking, which could run about $360,000 a year.
The stem cell agency is already
examining its options for new offices, including some sort of special
deal with the City of San Francisco.
Former State Sen. Art Torres, onetime
chairman of the state Democratic Party and co-vice chairman of CIRM,
briefed agency directors on the matter at its meeting in May. He
said,

“I met with the mayor of San
Francisco(Ed Lee), who's a dear friend, and he encouraged us to be
aware that he's very committed to helping us find some space in San
Francisco. Whether it means tax credits or incentives to a potential
landlord, we still have to work that out. Obviously we still have to
work out what the space will be. But the fact that the mayor has
indicated very explicitly that he wants to keep us in San Francisco,
I think it will bode well for us down the road.

“The current owner of the property
(Stockbridge Capital Partners) has not been happy that for ten years
they've had to supply free rent to us. And what they didn't
anticipate was having to provide for over $755,000 in operating
costs, which they thought some donors would take are of. Those donors
-- some of whom passed away and others who chose to give money to
other institutions, UC San Francisco, in particular, to the stem cell
lab, which was very much appreciated, I know, by UCSF – but at
the end of the day, there's no room for negotiations with this
current owner.”

CIRM Director Joan Samuelson asked
Torres whether future rent would also be free. Torres, who is also
president of San Francisco's Public Utilities Commission, replied,

“I would not work on that assumption.
I would work on the assumption somewhere between a dollar and more,
again, dependent upon what kind of tax incentives the City of San
Francisco would provide. We're very fortunate that my son(Joaquin
Torres
) is the deputy mayor for economic development, so we also have
him working on this as well.”

Samuelson replied,

“I'll ask more questions offline.”

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