Developing a treatment for vision loss through transplant of photoreceptor precursors
A recent study examining the therapeutic potential of photoreceptor precursors, derived from clinically compliant induced pluripotent stem cells (iPSC), has demonstrated the safety and therapeutic potential of clinically compliant iPSC-derived photoreceptor precursors as a cell replacement source for future clinical trials.
Skin stem cells get moving for enhanced skin regeneration
Researchers have found that the ability of skin stem cells to heal wounds is linked with their ability to move towards the injury. Their study identified the signalling pathway of EGFR and COL17A1 as a key player in the regulation of motility. Understanding mechanisms that underlie the age-associated reduction in regenerative capacity is the first step to develop targeted treatments for age-associated chronic nonhealing disorders, such as diabetic ulcers.
Aided by stem cells, a lizard regenerates a perfect tail for first time in more than 250 million years
Lizards can regrow severed tails, making them the closest relative to humans that can regenerate a lost appendage. But in lieu of the original tail that includes a spinal column and nerves, the replacement structure is an imperfect cartilage tube. Now, a study describes how stem cells can help lizards regenerate better tails.
Stem cell transplant: How skin-derived T cells can damage other organs
More than 40,000 allogeneic hematopoietic stem cell transplants are carried out worldwide every year, mostly for patients suffering from leukemia or other diseases of the hematopoietic system. Very often, the so-called graft-versus-host reaction occurs, an inflammatory disease that can affect different organs and is caused by an unwanted defense reaction of the donor cells and the body's own T cells. Scientists now show how these endogenous, tissue-derived T cells enter other organs, such as the intestine, via the blood and contribute to inflammation there. The study provides important approaches to better therapy in stem cell transplantation and new diagnostic options.
What makes us human? The answer may be found in overlooked DNA
Our DNA is very similar to that of the chimpanzee, which in evolutionary terms is our closest living relative. Stem cell researchers have now found a previously overlooked part of our DNA, so-called non-coded DNA, that appears to contribute to a difference which, despite all our similarities, may explain why our brains work differently.