Stem Cell Types
Types of stem cells Totipotent : It is a stem cell which can produce total types or all types of other cell lineages is called totipotent or total potent cells. Eg: zygote and first 4-8 cells after cleavage. Pluripotent: A stem cell which can produce all cells of embryo but not extraembryonic layers in mammals is called as pluripotent cell. Eg: cells forming inner cell mass (ICM) in mammalian development, blastocyst. Multipotent: A stem cell retain in specific tissue of body and can only be differentiated in all type cell belonging to that tissue only. Eg: stem cell retain in adult Brains Oligopotent: Oligopotent stem cell can self renew and differentiated in to the closely related cell type . Eg: Hematopoietic stem cell Unipotent: Uni means one (itself) . unipotent stem cell has lowest differential potential than other types of stem cells. They are mostly found in adult tissue. Eg: muscle stem cell. Sources of stem cells Embryonic Stem Cells They