The human retinal stem niches could overlap a vascular anatomical pattern

摘要

Stem cells are undifferentiated cells which have the unique potential to self-renew and to supply,via intermediate stages of transit amplifying cells(TACs),differentiated cells.Within the stem cell niches not only heterologous cells,but also differentiated progeny of stem cells provide regulation to the stem cells parents.Stem cells can differentiate in various cell types during tissue maintenance or repair.