In the first evidence of a natural intervention triggering stem cell-based regeneration of an organ or system, a study shows that cycles of prolonged fasting not only protect against immune system damage — a major side effect of chemotherapy — but also induce immune system regeneration, shifting stem cells from a dormant state to a state of self-renewal.
In both mice and a Phase 1 human clinical trial, long periods of not eating significantly lowered white blood cell counts. In mice, fasting cycles then “flipped a regenerative switch,” changing the signaling pathways for hematopoietic stem cells, which are responsible for
Bone marrow stem cells self transplant can reduce Multiple Sclerosis (MS) symptoms, and make the disease regress in some cases.
These are the hopeful results from a research on 21 patients diseased by MS, made by the Chicago Northwestern University School of Medicine and published on Lancet Neurology. “Since 3 years from self transplant all the patients watch their conditions better.”
Since these results, doctors decided to make a bigger research involving more MS diseased people and comparing new therapy’s results with olds’ ones.
The experiment is about taking marrow stem cells and then treating them to remove ill lymphocytes which attack
Many of us know by now that stem cells are remarkably fluid in the types of cells they can become. But this fluidity, or pluripotency, comes with a price. Several studies have shown that the body’s immune system will attack and reject even genetically identical transplanted stem cells, making it difficult to envision their usefulness for long-term therapies.
Now Stanford cardiologist Joseph Wu, MD, PhD, and his colleagues have shown that coaxing the stem cells to become more-specialized (a process known as differentiation) before transplantation allows the body to recognize and tolerate the cells. Their research was published today in
Stem cells of the aging bone marrow recycle their own molecules to survive and keep replenishing the blood and immune systems as the body ages, researchers at UC San Francisco (UCSF) have discovered.
The recycling process, known as autophagy, or self-eating, involves reusing molecules and the chemical energy obtained from these molecules to withstand the killing effect of metabolic stress that intensifies as the body ages.
The discovery, reported online Feb. 6 in the journal Nature, showed that autophagy allows stem cells to avoid the alternative response to stress, which is programmed cellular suicide, in which cells that aren’t
For children born with immunodeficiencies, researchers may have found a better way for them to get the help they need from stem-cell transplants (…)
Children with primary immunodeficiencies have genetic defects in their immune system that leave them open to infection and other complications. Stem-cell transplants can replace the defective immune system with one derived from healthy donor bone marrow, but without a stem-cell transplant, many of these children might die, the researchers noted in a journal news release.
In order to create space for the donor stem cells and prevent rejection, the patient usually undergoes chemotherapy, radiotherapy or both. This