Progenitor cells

Stem cells that have a limited ability to change, or “differentiate” into different types of functional cells. Unlike “pluripotent” stem cells which can become any cell typed found in a human body, a progenitor cell is committed to become one or a small group of “target” cell types. Often progenitor cells are found in adult tissues, where they lie dormant until needed to create tissues lost to disease or injury. For example, the satellite cell is a progenitor cell found in muscle where it is stimulated to grow and differentiate to muscle tissue when muscle tissues must be replaced due to injury or disease.