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What are the famous stem cell enterprises in China?
Over the years, the definition of stem cells has been constantly revised and defined from different levels.
At present, most biologists and medical scientists believe that stem cells are a kind of cells that come from embryos, fetuses or adults and have unlimited self-renewal, proliferation and differentiation under certain conditions. They can produce daughter cells with the same phenotype and genotype as themselves, that is, specialized cells that constitute tissues and organs, and differentiate into progenitor cells.
In the past, people generally used the following two methods to identify stem cells:
1, based on the slow periodicity of stem cells, identifying resting stem cells in vivo by labeling chain cells.
2. Using the self-renewal ability of stem cells, observe their infinite proliferation ability in vitro, so as to identify stem cells in vitro. However, both methods have some limitations in application.
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