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POPSWorld First: Brain Tissues from Stem Cells
continues: "In regenerative therapy, only a limited number of diseases can be cured with simple cell transplants. Transplanting tissues could raise hopes for greater functional recovery," the institute said in a statement. "Cultivated tissues are still insufficient and too small to be used to treat stroke patients. But study of in-vitro cultivation of more mature cortex tissues, such as those with six zones like in the adult human brain, will be stepped up," it said. The tissues could also serve as "a mini organ" for use in studying the cause of the Alzheimer's disease and developing vaccines, it said. Embryonic stem cells are harvested by destroying a viable embryo, a process that some people find unacceptable. Riken said cortex tissues were also obtained from "induced pluripotent stem cells," which are similar to embryonic stem cells but artificially induced, typically from adult cells such as skin cells. The research was led by Yoshiki Sasai at Riken Centre for Devel
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POPSStem Cells without Side Effects It sounds like a breakthrough has been achieved. Not long (relative:) from now we may be growing extra organs from our own cells... life extension may be nearer...
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POPSResearchers turn one form of adult mouse cell directly into another Joan Brugge, Chair of the Department of Cell Biology at Harvard Medical School, said the new study "provides exciting new insights into yet another aspect of cell plasticity that was not appreciated previously and that offers great potential therapeutically. Direct reprogramming represents a more straight-forward strategy to treat diseases involving loss of function of specific cell populations than approaches requiring an intermediate embryonic stem cell," she said.
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POPSStem Cell Breakthrough Could Stifle Research Cure causes cancer The new method is preliminary and fraught with problems. Yamanaka first performed this technique on mice in 2006, and most of the mice developed cancer. This is because the special genes are carried into the cell by a virus, which can spread to other parts of the body and initiate rapid cell growth elsewhere. Also, the faux-embryonic stem cells don't work as well at growing and expressing proteins as the real things.
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POPSInteresting Cloning Work Groundbreaking work done in the US despite the presidents pandering to Right Wing Religionuts. I hope folks realize that the research is in the first stages and much is left to be done. Don't look for cures next week. But it's a start.
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