Discovery of stem cells wikipedia
Embryonic stem cells (ES cells or ESCs) are pluripotent stem cells derived from the inner cell mass of a blastocyst, an earlystage preimplantation embryo. [1 [2 Human embryos reach the blastocyst stage 45 days post fertilization, at which time they consist of cells.Stemcell therapy has become controversial following developments such as the ability of scientists to isolate and culture embryonic stem cells, to create stem cells using somatic cell nuclear transfer and their use of techniques to create induced pluripotent stem cells. This controversy is often related to abortion politics and to human cloning. discovery of stem cells wikipedia
Stem cells are the cellular putty from which all tissues of the body are made. Ever since human embryonic stem cells were first grown in the lab, researchers have dreamed of using them to repair
Lymphoid cells include T cells, B cells, and natural killer cells. The definition of hematopoietic stem cells has evolved since HSCs were first discovered in 1961. [2 The hematopoietic tissue contains cells with longterm and shortterm regeneration capacities and committed multipotent, oligopotent, Dedifferentiation of mutated cells may create stem celllike characteristics, suggesting that any cell might become a cancer stem cell. In other words, a fully differentiated cell undergoes mutations or extracellular signals that drive it back to a stemlike state.discovery of stem cells wikipedia The accidental discovery of stem cells May 17, seemed to us to be one crucial defining property of stem cells, and it is the definition of stem cells that is still in use today.