Researchers at the University of North Carolina at Chapel Hill School of Medicine have transformed cells from human skin into cells that produce insulin, the hormone used to treat diabetes.
The breakthrough may one day lead to new treatments or even a cure for the millions of people affected by the disease, researchers say.
The approach involves reprogramming skin cells into pluripotent stem cells, or cells that can give rise to any other fetal or adult cell type, and then inducing them to differentiate, or transform, into cells that perform a particular function – in this case, secreting insulin.
Several recent studies have shown that cells can be returned to pluripotent state using "defined factors" (specific proteins that control which genes are active in a cell), a technique pioneered by Dr. Shinya Yamanaka, a professor at Kyoto University in Japan.
However, the UNC study is the first to demonstrate that cells reprogrammed in this way can be coaxed to differentiate into insulin-secreting cells. Results of the study are published online in the Journal of Biological Chemistry.
"Not only have we shown that we can reprogram skin cells, but we have also demonstrated that these reprogrammed cells can be differentiated into insulin-producing cells which hold great therapeutic potential for diabetes," said study lead author Yi Zhang, Ph.D., Howard Hughes Medical Institute investigator, professor of biochemistry and biophysics at UNC and member of the Lineberger Comprehensive Cancer Center.
"Of course, there are many years of additional studies that are required first, but this study provides hope for a cure for all patients with diabetes," said John Buse, M.D., Ph.D., president of the American Diabetes Association and professor and chief of the endocrinology division in the UNC School of Medicine's department of medicine.
About 24 million Americans suffer from diabetes, a disease that occurs when the body is unable to produce or use insulin properly. Virtually all patients with type I diabetes, the more severe of the two types, must rely on daily injections of insulin to maintain their blood sugar levels.
Recent research exploring a possible long-term treatment – the transplantation of insulin-producing beta cells into patients – has yielded promising results. But this approach faces its own challenges, given the extreme shortage of matched organ donors and the need to suppress patients' immune systems.
The work by Zhang and other researchers could potentially address those problems, since insulin-producing cells could be made from diabetic patients' own reprogrammed cells.
Zhang is collaborating with Buse to obtain skin samples from diabetes patients. He said he hoped his current experiments will take this approach one step closer to a new treatment or even a cure for diabetes.
The research was funded by the Howard Hughes Medical Institute and the National Institutes of Health. Study co-authors include postdoctoral fellows Keisuke Tateishi, M.D.; Jin He, Ph.D.; Olena Taranova, Ph.D.; Ana C. D'Alessio, Ph.D.; and graduate student Gaoyang Liang, all from the UNC School of Medicine's department of biochemistry and biophysics.
- PHYSICAL SCIENCES
- EARTH SCIENCES
- LIFE SCIENCES
- SOCIAL SCIENCES
Subscribe to the newsletter
Stay in touch with the scientific world!
Know Science And Want To Write?
- Thinking 'I Can Do Better' Really Can Improve Performance, Study Finds
- Bewildering Dune Formation On Mars
- Brain Cancer: Why Glioblastoma Is So Difficult To Treat
- Some Celiac Disease May Be Due To Viruses
- How A Former Naturopath Can Help Unravel The Trickery of Alternative Medicine
- Out Of Africa: What They Do Not Tell Us
- Little To No Association Between Butter Consumption And Chronic Disease Or Total Mortality
- "Agreed, many people tend to jump the gun when they see an article like his and don’t read down..."
- "One other thing. It's kind of absurd to argue that if you don't have a solution you can't discuss..."
- "Eugenics tends to be a toxic conversation stopper, primarily because of the poisonous political..."
- "Are you proposing pseudo-positive/negative eugenics? As my boss always says, don't point out a..."
- " Media Silent as Concealed Carrier Stops Mass Shooting in Progress at a South Carolina Nightclub..."