Exact(53)
Each type generates replacement cells for the particular tissue in which it is found.
Cloning is an arduous process, and using it to create tailor-made replacement cells may prove impractical.
A further complication is that heart attacks cause the growth of scar tissue that might have to be removed for replacement cells to improve heart function.
It weighs the generation of new replacement cells, required for continued life, against the risk of death from cancer, which is the inevitable outcome of letting cells divide.
Even if replacement cells should also fall victim to the disease, he said, they may buy the patient extra time and be a valuable treatment.
Dr. Faustman adds that if diabetes is caused when the immune system attacks the pancreas, as seems likely, even replacement cells might soon be attacked and destroyed.
Similar(7)
However, because of the short lifespan of the mouse, mouse models are insufficient for evaluating the long-term effects of cell replacement or cell therapy.
Replacement β cells may be generated from stem/progenitor cells, possibly residing within the pancreatic islet cells.
As such, they hold great potential in the areas of drug discovery, cell therapy, replacement and cell-mediated gene therapy.
Some of the primary stem cell sources available to achieve β cell replacement include pancreatic stem cells, hepatic stem cells and mesenchymal stem cells (MSCs).
Representing a renewable source for cell replacement, neural stem cells have received substantial attention in recent years.
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