The human brain and the brain of other mammals contain numerous populations of specialized cells with unique functions, molecular structures and characteristics. These cells originate from a thin layer of neuroepithelial ...
Researchers at Stanford University in California have devised a fluorescence-activated cell-sorting method for isolating distinct neural stem and progenitor cell types from human brain tissue. The markers used in the study ...
Neuroregeneration entails not only neurogenesis, but also regrowth of lost connections and birth of non-neuronal cells. While adult neurogenesis in humans is only known to occur definitively in a few precisely circumscribed ...
An international team of researchers has found that the mouse cerebellum may not be a good model for the human cerebellum in brain studies. In their study published in the journal Science, the group describes their comparison ...
Nerve cells stripped of their insulation can no longer carry vital information, leading to the numbness, weakness and vision problems often associated with multiple sclerosis. A new study shows an overlooked source may be ...
Nov 27, 2018
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Researchers at the Stanford University School of Medicine have discovered that when a certain aggressive leukemia is causing havoc in the body, the solution may be to force the cancer cells to grow up and behave.
Mar 16, 2015
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Researchers from Melbourne's Walter and Eliza Hall Institute have discovered that breast stem cells and their 'daughters' have a much longer lifespan than previously thought, and are active in puberty and throughout life.
Jan 26, 2014
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Scientists at The Scripps Research Institute (TSRI) have identified a set of compounds that may be used to treat multiple sclerosis (MS) in a new way. Unlike existing MS therapies that suppress the immune system, the compounds ...
Oct 9, 2013
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(Medical Xpress)—Membrane fusion is a highly regulated event, both inside cells, and between them. From the moment a sperm first fuses with an egg, subsequent developmental events depend upon its proper control. Inside ...
In a serendipitous discovery, scientists at The Scripps Research Institute (TSRI) have found a way to turn bone marrow stem cells directly into brain cells.
Apr 22, 2013
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干细胞、祖细胞有能力to differentiate into a specific type of cell. In contrast to stem cells, however, they are already far more specific: they are pushed to differentiate into their "target" cell. The most important difference between stem cells and progenitor cells is that stem cells can replicate indefinitely, whereas progenitor cells can only divide alimitednumber of times. Controversy about the exact definition remains and the concept is still evolving.
Despite the difficulty of defining progenitors, the term is frequently used in research. Thus, the importance of progenitors cannot be ignored.
The terms "progenitor cell" and "stem cell" are sometimes equated.
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