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Category Archives: Stem Cells
Stem Cells May Further Hepatitis C Research
Posted: February 1, 2012 at 3:20 am
TUESDAY, Jan. 31 (HealthDay News) -- Using stem cells to create liver-like cells for laboratory research may advance efforts to find out why people respond differently to hepatitis C infection, scientists say.
It's not clear why some people are resistant to hepatitis C, while others are highly susceptible to the infectious disease that can cause liver inflammation and organ failure.
Studying liver cells from various people could reveal genetic factors behind these different responses, but liver cells are difficult to obtain and to grow in a lab dish.
Now, U.S. researchers have found a way to create liver-like cells from induced pluripotent stem cells (iPSCs), which are made from body tissues rather than embryos. These liver-like cells can then be infected with hepatitis C.
The research was published Jan. 30 in the journal Proceedings of the National Academy of Sciences.
It's the first time that scientists have been able to establish an infection in iPSC-derived cells. The technique was developed by a team from MIT, Rockefeller University and the Medical College of Wisconsin.
Along with benefiting hepatitis C research, the new technique may eventually have a role in personalized medicine, the researchers said in a MIT news release. By testing the effectiveness of different drugs on tissues derived from a patient, doctors could customize therapy for that patient, they said.
More information
The American Academy of Family Physicians has more about hepatitis C.
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Stem Cells May Further Hepatitis C Research
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Reverse Aging Discovery thru Stem Cell Research – Video
Posted: January 31, 2012 at 6:10 pm
27-01-2012 10:07 http://www.insidershealth.com Reverse Aging Fountain of Youth Reversed Aging Stem Cell Research Has the Fountain of Youth been discovered? Is reversed aging really in our future? University of Pittsburgh's School of Medicine may just have found the answer through a study involving lab mice with a rapid-aging disease. Once the mice received a muscle stem cell injection, the doctors were pleased to find that it reversed the effects of aging in the sick mice! Reverse Aging Fountain of Youth Reversed Aging Stem Cell Research http://www.insidershealth.com
The rest is here:
Reverse Aging Discovery thru Stem Cell Research - Video
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IOM Panel Ends California Visit With No Mainstream Media Coverage
Posted: January 29, 2012 at 4:55 pm
The blue-ribbon Institute of Medicine panel examining the performance of the $3 billion California stem cell agency has quietly concluded its first public hearing in California without so much as a smidgen of daily coverage in the mainstream media.
Instead, the big state news in California yesterday was a lawsuit filed by lawmakers against the state's top fiscal officer to prevent him from cutting their pay again when they fail to pass a balanced budget.
It would have been extremely unlikely, however, to have seen any daily coverage of the IOM session. The mainstream media generally ignores the affairs of the California stem cell agency.
Other than what has appeared on the California Stem Cell Report, the most comprehensive look at the $700,000, IOM examination of CIRM was provided on Tuesday by Marcy Darnovsky of the Center for Genetics and Society, which has followed CIRM, and the ballot measure that created it, since 2004.
Darnovsky brought her readers on the Biopolitical Times up to speed on CIRM matters. She noted that CIRM will need more cash in a few years when its bond funding runs out. She concluded,
"But ballot measure or no ballot measure, CIRM will continue to disperse the public money it controls - another billion and a half dollars. This is a public agency spending increasingly scarce public resources. It is funding a field of research in which we place great hopes for medical and scientific advances. These factors make it all the more crucial that CIRM follow the basics of good governance and public accountability, and eschew the hyperbole and exaggerated promises that have tainted stem cell research for so long."
The California Stem Cell Report emailed a 1,370-word statement to the panel. The study director of the IOM panel said the statement would be placed in the panel's record.
The document provided perspective on the formation of CIRM, the political context in which it operates and discussed some of the potential pitfalls of CIRM's necessary but delicate courting of industry. Suggestions were offered for changes to ease potential conflicts of interest and to open to the public the statements of the economic interests of the grant reviewers who make the de facto decisions on CIRM's funding.
Here is the full statement from the California Stem Cell Report.
CSCR Statement to IOM-CIRM Performance Inquiry
Source:
http://californiastemcellreport.blogspot.com/feeds/posts/default?alt=rss
Posted in Stem Cells, Stem Cell Therapy
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Magazine Survey on CIRM Shows Mixed Results
Posted: January 29, 2012 at 4:55 pm
The magazine GEN this week produced two relatively lengthy articles dealing with the current state of affairs and the future of the $3 billion California stem cell agency.
Much of the material is familiar to readers of the California Stem Cell Report, but GEN, which says it reaches "221,035 biotech and life science professionals, also produced an online survey that asked its readers: "How helpful has CIRM been in advancing stem cell science?"
At the time of this writing, the results showed that 40.9 of respondents said CIRM was "very helpful." An identical percentage said "not very" or were undecided. The survey showed 18.2 percent as ranking the agency "somewhat" helpful. The number of respondents was not disclosed.
The two articles (see here and here)by Alex Philippidis also discussed the possibility of a bond issue in a "few years," before CIRM runs out of cash in 2017. Philippidis wrote,
"By then CIRM hopes to have won what ICOC (the CIRM governing board) chairman Jonathan Thomas, Ph.D., has called the 'communications war' the agency is fighting with California newspapers and the CIRM-focused blog California Stem Cell Report. Both have criticized the agency over a host of governance and pay issues."
For the record, the California Stem Cell Report has not criticized the agency in connection with the level of its executive pay. We have pointed out that many California voters have a highly negative and visceral reaction to high public salaries, which is a matter that CIRM must deal with in connection with retention of public confidence. We have also noted that the salaries represent a tiny, tiny fraction of CIRM spending.
Source:
http://californiastemcellreport.blogspot.com/feeds/posts/default?alt=rss
Posted in Stem Cells, Stem Cell Therapy
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The California Stem Cell Agency and the ACT Opportunity
Posted: January 29, 2012 at 4:55 pm
A promising, positive story on stem cell research in California popped up in the news this week, involving improvements in vision as the result of the only hESC clinical trial in the nation.
The story came after Jonathan Thomas, chairman of the $3 billion California stem cell agency, said in the San Francisco Business Times that what he likes least about his job is that "the coverage in the press chooses to focus on items besides the extraordinary work that our scientists are doing."
The good news about the eye research appeared in the New York Times, Los Angeles Times and across the nation. However, it did not involve work at the stem cell agency, probably for reasons that likely have to do in good part with CIRM. The research involves a firm headquartered in Santa Monica, Ca., Advanced Cell Technology, that moved its base to the Golden State in hopes of securing CIRM funding. ACT has applied more than once for CIRM cash but has never received a grant. And it is one of the rare companies that has complained publicly to the CIRM governing board about a conflict of interest on the part of a CIRM reviewer. In ACT's case, its complaints received a public brushoff at a CIRM board meeting in 2008.
ACT's results in its clinical trial are quite tentative. They involve only two persons. One of the UCLA scientists involved said part of the results could have been the result of a placebo effect. Nonetheless, the reports carried the kind of story line that CIRM yearns for. Indeed, Thomas stressed the need for positive news when he told CIRM directors last June that the agency is in a "communications war" that is tied to its ultimate fate. (The agency runs out of cash in 2017.)
The New York Times' Andy Pollock wrote,
"Both patients, who were legally blind, said in interviews that they had gains in eyesight that were meaningful for them. One said she could see colors better and was able to thread a needle and sew on a button for the first time in years. The other said she was able to navigate a shopping mall by herself."
On its research blog, CIRM described the ACT results as a "milestone." CIRM's Amy Adams wrote,
"It’s the first published paper showing that—at least in this small number of patients for the first few months—the cells are safe."
She quoted Hank Greely of Stanford as saying that the news from ACT is "at least, a little exciting – and in a field that saw its first approved clinical trial stopped two months ago, even a little exciting news is very welcome."
Greely's reference, of course, was to Geron's sudden abandonment in November of its hESC trial, only three months after CIRM gave the firm a $25 million loan. It was widely believed that ACT was one of the initial applicants in the round that provided funding for Geron, although CIRM does not release the names of non-funded applicants.
Last week, CIRM directors spent a fair amount of time discussing the agency's future. The talk was of priorities, hard choices and generating results that would resonate with the people of California.
This week's news from a company that was not funded by CIRM will give them more to ponder.
Source:
http://californiastemcellreport.blogspot.com/feeds/posts/default?alt=rss
Posted in Stem Cells, Stem Cell Therapy
Comments Off on The California Stem Cell Agency and the ACT Opportunity
Magazine Survey on CIRM Shows Mixed Results
Posted: January 29, 2012 at 4:53 pm
The magazine GEN this week produced two relatively lengthy articles dealing with the current state of affairs and the future of the $3 billion California stem cell agency.
Much of the material is familiar to readers of the California Stem Cell Report, but GEN, which says it reaches "221,035 biotech and life science professionals, also produced an online survey that asked its readers: "How helpful has CIRM been in advancing stem cell science?"
At the time of this writing, the results showed that 40.9 of respondents said CIRM was "very helpful." An identical percentage said "not very" or were undecided. The survey showed 18.2 percent as ranking the agency "somewhat" helpful. The number of respondents was not disclosed.
The two articles (see here and here)by Alex Philippidis also discussed the possibility of a bond issue in a "few years," before CIRM runs out of cash in 2017. Philippidis wrote,
"By then CIRM hopes to have won what ICOC (the CIRM governing board) chairman Jonathan Thomas, Ph.D., has called the 'communications war' the agency is fighting with California newspapers and the CIRM-focused blog California Stem Cell Report. Both have criticized the agency over a host of governance and pay issues."
For the record, the California Stem Cell Report has not criticized the agency in connection with the level of its executive pay. We have pointed out that many California voters have a highly negative and visceral reaction to high public salaries, which is a matter that CIRM must deal with in connection with retention of public confidence. We have also noted that the salaries represent a tiny, tiny fraction of CIRM spending.
Source:
http://californiastemcellreport.blogspot.com/feeds/posts/default?alt=rss
Posted in Stem Cells, Stem Cell Therapy
Comments Off on Magazine Survey on CIRM Shows Mixed Results
IOM Panel Ends California Visit With No Mainstream Media Coverage
Posted: January 29, 2012 at 4:53 pm
The blue-ribbon Institute of Medicine panel examining the performance of the $3 billion California stem cell agency has quietly concluded its first public hearing in California without so much as a smidgen of daily coverage in the mainstream media.
Instead, the big state news in California yesterday was a lawsuit filed by lawmakers against the state's top fiscal officer to prevent him from cutting their pay again when they fail to pass a balanced budget.
It would have been extremely unlikely, however, to have seen any daily coverage of the IOM session. The mainstream media generally ignores the affairs of the California stem cell agency.
Other than what has appeared on the California Stem Cell Report, the most comprehensive look at the $700,000, IOM examination of CIRM was provided on Tuesday by Marcy Darnovsky of the Center for Genetics and Society, which has followed CIRM, and the ballot measure that created it, since 2004.
Darnovsky brought her readers on the Biopolitical Times up to speed on CIRM matters. She noted that CIRM will need more cash in a few years when its bond funding runs out. She concluded,
"But ballot measure or no ballot measure, CIRM will continue to disperse the public money it controls - another billion and a half dollars. This is a public agency spending increasingly scarce public resources. It is funding a field of research in which we place great hopes for medical and scientific advances. These factors make it all the more crucial that CIRM follow the basics of good governance and public accountability, and eschew the hyperbole and exaggerated promises that have tainted stem cell research for so long."
The California Stem Cell Report emailed a 1,370-word statement to the panel. The study director of the IOM panel said the statement would be placed in the panel's record.
The document provided perspective on the formation of CIRM, the political context in which it operates and discussed some of the potential pitfalls of CIRM's necessary but delicate courting of industry. Suggestions were offered for changes to ease potential conflicts of interest and to open to the public the statements of the economic interests of the grant reviewers who make the de facto decisions on CIRM's funding.
Here is the full statement from the California Stem Cell Report.
CSCR Statement to IOM-CIRM Performance Inquiry
Source:
http://californiastemcellreport.blogspot.com/feeds/posts/default?alt=rss
Posted in Stem Cells, Stem Cell Therapy
Comments Off on IOM Panel Ends California Visit With No Mainstream Media Coverage
The California Stem Cell Agency and the ACT Opportunity
Posted: January 29, 2012 at 4:53 pm
A promising, positive story on stem cell research in California popped up in the news this week, involving improvements in vision as the result of the only hESC clinical trial in the nation.
The story came after Jonathan Thomas, chairman of the $3 billion California stem cell agency, said in the San Francisco Business Times that what he likes least about his job is that "the coverage in the press chooses to focus on items besides the extraordinary work that our scientists are doing."
The good news about the eye research appeared in the New York Times, Los Angeles Times and across the nation. However, it did not involve work at the stem cell agency, probably for reasons that likely have to do in good part with CIRM. The research involves a firm headquartered in Santa Monica, Ca., Advanced Cell Technology, that moved its base to the Golden State in hopes of securing CIRM funding. ACT has applied more than once for CIRM cash but has never received a grant. And it is one of the rare companies that has complained publicly to the CIRM governing board about a conflict of interest on the part of a CIRM reviewer. In ACT's case, its complaints received a public brushoff at a CIRM board meeting in 2008.
ACT's results in its clinical trial are quite tentative. They involve only two persons. One of the UCLA scientists involved said part of the results could have been the result of a placebo effect. Nonetheless, the reports carried the kind of story line that CIRM yearns for. Indeed, Thomas stressed the need for positive news when he told CIRM directors last June that the agency is in a "communications war" that is tied to its ultimate fate. (The agency runs out of cash in 2017.)
The New York Times' Andy Pollock wrote,
"Both patients, who were legally blind, said in interviews that they had gains in eyesight that were meaningful for them. One said she could see colors better and was able to thread a needle and sew on a button for the first time in years. The other said she was able to navigate a shopping mall by herself."
On its research blog, CIRM described the ACT results as a "milestone." CIRM's Amy Adams wrote,
"It’s the first published paper showing that—at least in this small number of patients for the first few months—the cells are safe."
She quoted Hank Greely of Stanford as saying that the news from ACT is "at least, a little exciting – and in a field that saw its first approved clinical trial stopped two months ago, even a little exciting news is very welcome."
Greely's reference, of course, was to Geron's sudden abandonment in November of its hESC trial, only three months after CIRM gave the firm a $25 million loan. It was widely believed that ACT was one of the initial applicants in the round that provided funding for Geron, although CIRM does not release the names of non-funded applicants.
Last week, CIRM directors spent a fair amount of time discussing the agency's future. The talk was of priorities, hard choices and generating results that would resonate with the people of California.
This week's news from a company that was not funded by CIRM will give them more to ponder.
Source:
http://californiastemcellreport.blogspot.com/feeds/posts/default?alt=rss
Posted in Stem Cells, Stem Cell Therapy
Comments Off on The California Stem Cell Agency and the ACT Opportunity
Need muscle for a tough spot? Turn to fat stem cells
Posted: January 28, 2012 at 12:52 pm
In diseases like muscular
dystrophy[1] or a
heart
attack[2], “muscle[3]
begins to die and undergoes its normal wounding processes,”
said Engler, a bioengineering[4]
professor at the Jacobs School of Engineering at UC San Diego.
“This damaged tissue is fundamentally different from a
mechanical perspective” than healthy tissue.
Transplanted stem
cells[5] might be
able to replace and repair diseased muscle, but up to this
point the transplants haven’t been very successful in muscular
dystrophy patients, he noted. The cells tend to clump into hard
nodules as they struggle to adapt to their new environment of
thickened and damaged tissue.
Engler, postdoctoral scholar Yu Suk Choi and the rest of the
team think their fat-derived stem cells might have a better
chance for this kind of therapy, since the cells seem to thrive
on a stiff and unyielding surface that mimics the damaged
tissue found in people with MD.
In their study in the journal Biomaterials, the
researchers compared the development of bone marrow stem cells
and fat-derived stem cells grown on surfaces of varying
stiffness, ranging from the softness of brain tissue to the
hardness of bone.
Cells from the fat lineage were 40 to 50 times better than
their bone marrow counterparts at displaying the proper
proteins involved in becoming muscle. These proteins are also
more likely to “turn on” in the correct sequence in the
fat-derived cells, Engler said.
Subtle differences in how these two types of cells interact
with their environment are critical to their development, the
scientists suggest. The fat-derived cells seem to sense their
“niche” on the surfaces more completely and quickly than
marrow-derived cells. “They are actively feeling their
environment soon, which allows them to interpret the signals
from the interaction of cell and environment that guide
development,” Choi explained.
Perhaps most surprisingly, muscle
cells[6] grown from
the fat stem cells fused together, forming myotubes to a degree
never previously observed. Myotubes are a critical step in
muscle development, and it’s a step forward that Engler and
colleagues hadn’t seen before in the lab.
The fused cells stayed fused when they were transferred to a
very stiff surface. “These programmed cells are mature enough
so that they don’t respond the environmental cues” in the new
environment that might cause them to split apart, Engler says.
Engler and colleagues will now test how these new fused cells
perform in mice with a version of muscular dystrophy. The cells
survive in an environment of stiff tissue, but Engler cautions
that there are other aspects of diseased tissue such as its
shape and chemical composition to consider. “From the
perspective of translating this into a clinically viable
therapy, we want to know what components of the environment
provide the most important cues for these cells,” he
said.
[7]
Provided by University of California - San Diego (news[8] :
web[9])
References
-
^ muscular dystrophy
(www.physorg.com) -
^ heart attack
(www.physorg.com) -
^ muscle
(www.physorg.com) -
^ bioengineering
(www.physorg.com) -
^ stem cells
(www.physorg.com) -
^ muscle cells
(www.physorg.com) -
^ cells
(www.physorg.com) -
^ news
(www.physorg.com) -
^ web
(www.ucsd.edu)
See the article here:
Need muscle for a tough spot? Turn to fat stem cells
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StemCellTV Daily Report-January 24, 2012 – Video
Posted: January 27, 2012 at 10:04 pm
24-01-2012 10:19 Stem cells may soon be used in penile reconstruction for men that have erectile dysfunction or Peyronie's disease.
Read more here:
StemCellTV Daily Report-January 24, 2012 - Video
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