Stem Cells a Cure for Crohn’s Disease?

A cure for Crohn’s Disease could be found with the use of stem cells. Scientists are evaluating the efficacy of stem cell treatment on Crohn’s Disease when they are used to ‘re-boot’ the immune system.

The possibility of long-term remission for tens of thousands of people in the UK, and many more worldwide, is being investigated in a major clinical trial by University of Nottingham researchers. The experiments will involve taking stem cells from a patient’s own body and using them as a form of treatment.

The first of it’s kind to treat Crohn’s, the study is currently recruiting patients for its Europe-wide trial. Most commonly affecting the colon and small intestines, the condition is a chronic ongoing disease. The main symptoms are weight loss, fatigue, diarrhea, and pain in the abdomen. These are caused by inflammation, deep ulcers and scarring to the wall of the intestine.

About 3,000 to 6,000 new cases are diagnosed each year, and currently, about 60,000 people in the UK suffer from the condition. Immune suppressant drugs, and steroids which can only be administered in the short term are current treatments. There is no cure for the disease.

But a cure for up to 50 percent of sufferers could be in the making according to Professor Chris Hawkey and colleagues Dr. Paul Fortun and Dr. Tony Shonde who are together, conducting the Nottingham-led stem cell therapy.

Professor Hawkey said:

Americans Travel Overseas for Stem Cell Treatment

Since stem cell treatment cannot be administered in the United States due to federal restrictions, many U.S. citizens are traveling abroad to get this form of treatment.

Health officials call the procedures, which have been proven safe in many cases, risky and experimental. Despite the criticism, it seems the scientific evidence has trumped any attempt at diminishing the very real therapeutic potential of stem cells. Patients are traveling to countries in Central America and India and spending thousands of dollars to undergo stem cell treatment procedures.

Brian Sheridan, who is the supervisor for the Center for Spinal Cord Injury at the Rehabilitation Institute of Michigan in Detroit said that, “there are always risks.”

“You can end up with an adverse event. That’s the nature of some of these experimental procedures.”

With the hope of regaining her ability to walk, Jeni Rummelt is currently in Europe receiving her 6th stem cell treatment. The 32-year-old was paralyzed from the waist down following a car accident.

“(These abilities) would have never come back without the stem cells,” said Rummelt, who spent $25,000 on the first procedure and $7,000 for each subsequent therapy. “It’s a slow progress. You know it’s not going to happen overnight, but it’s worth it.”

Since the destruction of human embryos is required for embryonic stem cell research, many individuals say this type of research is unethical.

However, it is now possible to transform adult stem cells which are derived from the skin, into the equivalent of embryonic stem cells. This new discovery should quiet many critics, especially with further advancements of the technology already on the way.

“I can understand their motivation, their desperation but it’s not something I can recommend if the treatments have not been proven to be safe and effective,” said Mervin Yoder, an Indiana-based doctor who is president of the International Society for Hematology and Stem Cells.

Prevention of Age-Related Brain Loss with Stem Cells

In advanced aging, a cognitive decline is typically observed as the years go by. But scientists may have an answer for this dilemma as stem cell research has found a novel approach to slow and possibly prevent this phenomenon.

Giving rise to new nerve cells every single day, the adult brain contains highly “regenerative” stem cells. As the brain ages, the number of stem/progenitor cells and their progeny decline dramatically according to previous studies. The number of stem cells we have in old age could be preserved in by boosting the number of stem cells when we are young or middle aged according to Dr. Rietze and his team.

The number of stem cells typically found in the brain is increased by using two separate approaches. Stimulating resident stem cells to divide and increase in number, the first approach used by Dr. Rietze and his team involves performing an acute infusion of growth hormone directly into the brain. These results indicate that a new target for stem cell-related treatments may be growth hormone, which may also play an integral role in regulating brain stem cells.

Stem Cells 2.0: Beyond the Hype, Engineers Look to Build Fast

Engineers who figure out how to take the delicate results of lab experiments and make them robust enough to survive the onslaught of industry, have a long road to follow in order to get from breakthrough to application. Thus, the news last week that adult skin cells had been reprogrammed using a novel technique, to transform them into embryonic stem cells, was seen as only the beginning and not the end by biomedical engineer PeterZandstra and others like him.

Stem Cell Breakthrough Encourages Germany to Increase Funding

Germany’s research minister wants to ease restrictions on stem cell research after recent research revealed that common skin cells can be modified to have embryonic like power. The U.S. and Japanese research has also prompted a pledge to invest more money in adult stem cell research.

“We will double research funds for the technology for reprogramming adult cells from 5 to 10 million euros ($7 to 15 million) a year, so that work can proceed quickly,” Education and Research Minister Annette Schavan told the newsmagazine Focus.

“Germany should become the motor of adult stem-cell research,” she added, noting that the recent scientific developments are a means of ending the embryonic stem cell debate.

The two teams, one from Kyoto University in Kyoto, Japan, and another from the University of Wisconsin, both worked independently in what could be described as a “race” to be the first to reprogram skin cells. Both announcements were made on November 20th.

Since embryos are discarded in the process, embryonic stem cell research has come under harsh scrutiny. Their versatility has prompted support of equal force as well. The two sides may soon have little to debate about.

The ethical controversy surrounding the research would be eliminated with the use of reprogrammed skin cells.

Stem cell research is strictly regulated in Germany. Not scientific research with embryos can be conducted, unless the embryos were imported into the country prior to January 1st, 2002. A one time change to extend the cut-off date was proposed, however, that may no longer be necessary.

“What’s important is that there is now greater hope of being able one day to do without tests on embryonic stem cells,” she said.

More countries should benefit form the finding other than Germany. Regulatory bodies around the world have unanimously supported the research, which will take the cap off funding in some cases, and allow scientists to access cells that have embryonic power.

Stem Cell Storage Popularity at All Time High in Asia

Some 25,000 Malaysians have registered to have their stem cells stored 5 years after it was introduced to the country.

Stem Cell Breakthrough Catalyst to New Medical Era

The ecstatic reaction of researchers, who are normally a less animated bunch, may be a good indicator of the importance and impact of a recent independently verified discovery: that common skin cells may be used instead of embryonic stem cells for research.

“This is a tremendous scientific milestone, the biological equivalent to the Wright Brothers first airplane,” said Robert Lanza, chief scientific officer of Advanced Cell Technology in Massachusetts., a statement echoing the view of many of his colleagues.

Federal funding has been restricted amidst political and social controversy over embryonic stem cell research and the ethical implications that the science entails. Today, the issue is more mainstream than it has ever been, so a solid understanding of biology is not necessary to understand the enthusiasm surrounding the research. Without the use of a woman’s eggs or human embryos, embryonic stem cells have been created by converting normal human skin cells using a simple technique developed by researchers in Wisconsin and Japan.

A limitless supple of research material will more than likely be created, and ethical issues will be completely eliminated, as the experiments are repeated and the methods perfected in giving embryonic power to skin cells.

Embryonic stem cells are considered to have the potential to develop into every type of human cell. Developing treatments for a long list of diseases and injuries which affect virtually every organ is the focus of scientists using embryonic stem cells for research. But ethical concerns, and more importantly, scientific/technical roadblocks have plagued the science, which has yet to produce even one successful treatment.

Stem cell research as a whole should be accelerated thanks to the new discovery. Many researchers who once had their hands tied because of limited cell lines, limited funding, and ethical concerns, will have now have an entire new frontier open in front of them. A much broader scope of expertise will be brought to the laboratory, which will lead to a much wider array of funding.

The discovery could be the catalyst for a new era in medicine, and Mr. Lanza’s Wright Brothers analogy may be spot on. It took 42 years for humans to walk on the moon after Lindbergh flew across the Atlantic Ocean 24 years after the Wright brothers’ maiden flight. But society should not be accustomed to this rate of innovation. Medicine and technology, with today’s global reach, could set a new precedent for the pace of discovery.

Stem Cell Treatment for MS and Arthritis Enhanced by New Approach

Scientists have discovered a way to alter the immune system and in the process, given new hope to the thousands of individuals who suffer from multiple sclerosis and arthritis.

A faulty immune system that attacks the body is responsible for the condition. The condition can be effectively cured by replacing the existing immune system with a healthy one. This is accomplished by taking stem cells from a healthy donor, and transplanting them via injection into the patients body.

Before providing new cells from bone marrow, umbilical cord blood, or another suitable source, the existing immune system was traditionally destroyed using an aggressive form of radiotherapy. This was the only way doctors could proceed: until now.

In the new method, the healthy immune system is still established after the unhealthy immune system is destroyed, but a toxin is used to clear out the old system instead of radiotherapy. The stem cells are injected after the initial purging is complete.

The benefits are potentially enormous for humans and could be used to treat MS and rheumatoid arthritis according to scientists at Stanford University School of Medicine in California. However, the procedure has only been utilized on mice thus far.

In the UK, one out of every 5 individuals is afflicted with arthritis. And Multiple Sclerosis affects about 85,000 people as well.

The journal Science reported the research results of Agnieszka Czechowicz, Dr. Deepta Bhattacharya, and Professor Weissman. Stem cells attached to bone marrow, and a new blood and immune system was established when the 3-person team transplanted new, blood-forming stem cells into mice.

So with this method, the new immune system will no longer attack the nerves of the body, when stem cells are taken from a donor and implanted into a person with a good tissue match who has an auto-immune disease such as multiple sclerosis.

In order for the technique to work on humans, researchers must first work out the kinks with more animal testing.

Dr. Laura Bell, the research communications officer at the MS Society, said: “Stem-cell studies are an important avenue of research that hold promise in terms of treatments for MS. This early-stage study is interesting and we look forward to seeing how the work translates into studies in people with MS.”

Professor Edward Tuddenham, of the Royal Free Hospital, London, said: “For those whose blood stem cells contain a severe genetic defect such as that causing sickle cell anaemia, replacing them with normal stem cells would enable restoration of normal blood.”

“Bone marrow transplantation has been used for sickle cell anaemia with good results in children, but in adults it is difficult to get the new stem cells to take in the face of rejection by the resident stem cells and their progeny – the immune system.”

Professor Lars Fugger, of the Medical Research Council Human Immunology Unit, Oxford University, said: “This study has great potential.”

Systematic Approach to Stem Cell Treatment for Brain Damage Being Developed

Caring for babies suffering from cerebral palsy or those who suffer a stroke may soon follow a protocol similar to what Dr. Tadashi Masuda and Dr. Mina Maki are performing today. They are preparing for a transplant, the first step: placing two syringes inside an ice packed plastic foam box.

Protocols that could be followed in any clinic in the country are being developed by Cesar Borlongan and his team inside the laboratory at the Augusta Department of Veterans Affairs Medical Centers. While establishing a systematic method, they hope to also prove that adult bone marrow-derived stem cells are effective in helping repair the brain damage.

This particular stem cell therapy is being studied in animal models by Dr. Borlongan, also an associate professor at the Medical College of Georgia, and Dr. David Hess, MCG chairman of neurology. The research is being facilitated by a $4.2 million dollar grant which will span five years. The same therapy will be studied for use in babies who, due to lack of blood or lack of oxygen around the time of birth, suffer brain damage. 10 percent of the cases of cerebral palsy can be attributed to this this circumstance. This second study will funded by an additional $1.8 million dollar grant spanning three years, and the research will be carried out with James Carroll, chief of pediatric neurology at MCG.

The research on cerebral palsy may be approved for human trials sooner since the procedure has already been proven to be relatively safe and there is a lack of existing therapies for the condition as well.

“I would hope we would get a start on this in a year,” Dr. Carroll said.

The researchers were looking for methods that could be duplicated easily, such as shipping the cells in a liquid nitrogen container to thawing them and loading them into syringes for injection into an IV. Just as if they were trying to get the FDA to approve a new drug, the approach for the stroke model has been standardized said Dr. Borlongan.

“This is the same way we’re going to do it in the clinic,” he said. “Once the cells arrive in the clinic, all the clinicians will do is thaw the cells and then inject them into the patient.”

Dr. Borlongan said that they now believe the benefit to stroke victims might be from growth factors secreted by the cells as opposed to the former theory that the benefit was derived from the replacement of damaged cells.

“Once they release these beneficial substances, they help rescue the dying cells from the host tissue,” he said. “And they also increase the production of new cells.”

Dr. Carroll said that neonatal patients could also benefit from the treatment.

“We think it may have some additive effect in terms of new brain cells, but the main effect has to do with assisting with brain repair,” he said.

Many stroke patients arrive at the hospital too late to meet the deadline of a three-hour window in which a clot-busting drug must be given. The possibility of creating a treatment that could provide benefits past this point of no return has sparked the interest of many. Even days after stroke, observations from animal models showed that the treatment made a difference according to MCG researchers.

“What we have seen with the stem cells, even after seven days post-stroke, you can get functional benefit,” Dr. Borlongan said. “But because most stroke patients are discharged after a few days, they chose a two-day time frame to deliver the stem cells. And because these are adults cells, and not the embryonic stem cells that have generated much controversy, they can sidestep some of those ethical concerns,” Dr. Borlongan said.

Dr. Borlongan said that prior to using human cells, rodent cells will be the focus in order to prove safety and effectiveness. Human trials could follow in the fifth year, when the team plans to apply to the Food and Drug Administration.

“Hopefully, after the five-year project, we’ll have something to give to the patient,” he said.

Political Debate Over Embryonic Stem Cell Research May Soon End

Democrats have been spending ample time planning for next years elections. Specifically, on the topic of embryonic stem cell research. But a breakthrough by Japanese and American research teams could give President Bush and those who mirror his sentiments more than enough support to end the debate.

Progress in embryonic stem cell research was potentially blocked earlier this year when President Bush vetoed two separate bills which were in favor of allocating taxpayer dollars for the science.

The destruction of human embryos was not necessary in order for medical advances to be made in the field of stem cell science advocated Bush.

He may have been on the right track with his statements. On Tuesday, two separate research teams from Kyoto University in Kyoto, Japan, and the University of Wisconsin-Madison, reported stem cell advances that could end the controversy over embryo use forever.

The journals Cell and Science published papers by both teams on Tuesday regarding the breakthrough. Science published the work of Junying Yu, who was working in the lab of stem-cell pioneer James Thomson of the University of Wisconsin-Madison. Cell published a paper by the team led by Dr. Shinya Yamanaka of Kyoto University.

Both teams were able to take regular human cells, in this case skin cells, and use a technique called “direct reprogramming” to alter the cells to have the same potential as embryonic stem cells. All this without destroying, or even touching, a single human embryo.

White House officials are calling the debate over.

“This is evidence … that we can get the good results we want from science without cutting corners on ethics,” said Karl Zinsmeister, Bush’s domestic policy adviser. “Let’s not set up a false choice between on the one hand, progress, and on the other hand, ethics.”

The greatest potential in stem cell research is believed to be synonymous with embryonic stem cells. This is a conviction that many individuals adhere to, despite the existence of evidence pointing to some forms of adult stem cells having similar potential. However, the debate begins and ends with the human embryo, which is destroyed in the cell harvesting process. Bush and his allies do not want to force taxpayers into what may be an ethical dilemma for many. Supporters of embryonic research say that the embryos, left unused, would be discarded regardless, and that public money would only be directed towards these specific embryos.

Some defenders of embryonic research say that all types of this science should be federally funded, and that the breakthrough changes nothing about the debate.

“The argument that we need to have all types of ethical research is the argument that sways voters,” DeGette said Tuesday. “The White House and the opponents of stem cell research have been saying for years that they think adult stem cells are substitutes. This is not a new argument that they’re making.”

“Scientists may yet find that embryonic stem cells are more powerful,” said Sen. Tom Harkin, D-Iowa.

“We need to continue to pursue all alternatives as we search for treatments for diabetes, Parkinson’s and spinal cord injuries.”

But these comments seem indefensible thanks to the new technique. If skin cells, or any adult cell for that matter can be easily modified to have the exact same potential as an embryonic stem cell, than the debate is truly over. What researchers are left with is essentially, an embryonic stem cell, without the destruction of an embryo.

Scientists who have long supported embryonic science and cloning are beginning to switch sides. Even the most notable have applauded the breakthrough.

Scottish researcher Ian Wilmut, famous for his role in cloning Dolly the sheep a decade ago, has given up his embryonic cloning approach to produce stem cells and switched to direct reprogramming instead.

The Japanese method has more potential than embryonic stem cell research; Professor Wilmut said his own research team held a meeting at which this point was agreed on.

He said: “The work which was described from Japan of using a technique to change cells from a patient directly into stem cells without making an embryo has got so much more potential.”

If those who know more about stem cell science than the politicians agree that using the new technique offers more potential than embryonic stem cells, than the an end to embryonic stem cell research may be on the horizon.

“It solves the ethical dilemma,” said Sen. Tom Coburn, R-Okla. “This should put an end to” the debate.

“Maybe we can all now reach agreement on what has been an all-too-divisive issue and advance this promising research through the power of federal funds,” said Senate Minority Leader Mitch McConnell, R-Ky.

Despite any results, the debate should still make an appearance on the campaign trail in 2008.

“It’s terribly wrong for any politician to be trying to pick and choose one type of ethical research over another,” DeGette said. “That issue isn’t going away.”