multipotent
/ muhl-TIP-uh-tent /
Think of a specialist trainer at a sports academy who can coach several related sports — say all the ball games — but not music or mathematics. A multipotent cell is like that trainer: it can produce a limited, related family of cell types, but not the full range of the body. It has real versatility, just within boundaries.
Precisely, a multipotent cell can differentiate into multiple cell types, but only those within a particular lineage or tissue family. The classic example is the blood-forming (hematopoietic) stem cell, which can make red cells, the many kinds of white cells, and platelet-makers — but not nerve, muscle, or liver cells. Most stem cells found in the adult body are multipotent, sitting comfortably below pluripotency on the potency scale.
Multipotent cells matter enormously because they do the day-to-day maintenance and repair of our tissues throughout life, and several are already used in established medicine. Bone-marrow transplants, for instance, work by giving a patient healthy multipotent blood stem cells. Their limited potency is actually an advantage here: because they make only blood, they are more predictable and carry less tumor risk than pluripotent cells.
A hematopoietic stem cell in bone marrow is multipotent: a single one can ultimately give rise to oxygen-carrying red cells, infection-fighting white cells, and clot-forming platelets — but it can never become a brain cell.
Multipotency: one blood stem cell makes the whole blood family, but only blood.
Adult tissues mostly contain multipotent, not pluripotent, stem cells — claims that a single adult stem cell can become 'any cell in the body' overstate what these cells normally do.