Figure 1. Stem cell differentiation process.
This is the differentiation tree of stem cells from zygote to progenitor
cell. Progenitor cells are unipotent stem cells that have the weakest
capacity for differentiation and replication. In the mesoderm,
endothelial progenitor cells, neural progenitor cells, pancreatic
progenitor cells, and cardiac progenitor cells are involved. A
multipotent stem cell is a monibus term; in the mesoderm, mesenchymal
stem cells, hematopoietic stem cells, neural stem cells, and skin stem
cells are involved. iPSCs are manufactured stem cells, and this type of
pluripotent stem cell possesses functions similar to those of
traditional pluripotent stem cells.