Stem cells are specialized cells that can self-renew and differentiate into various cell types in the body. They serve as a repair system for the body by replenishing cells lost due to damage or normal cell turnover.
Introduction to Stem Cells
Several different types of stem cells have varying capacities to differentiate into diverse cell lineages. Embryonic stem cells derived from the blastocyst stage of embryo development are pluripotent, meaning they can generate cells from all three germ layers of the body. Adult stem cells found in tissues such as bone marrow and adipose are multipotent, limited to differentiating into cell types of their tissue of origin. Induced pluripotent stem cells are adult somatic cells reprogrammed back to a pluripotent state by genetic modification. Understanding these stem cells’ unique properties and sources is vital for developing future regenerative medicine therapies.