stem cell niches

Stem cell niches are specialized microenvironments within the body that support and regulate stem cells. These niches provide essential signals, nutrients, and physical conditions necessary for stem cells to remain healthy, self-renew, and develop into specific cell types when needed. Think of the niche as a supportive neighborhood that helps stem cells stay balanced—neither multiplying too much nor dying out—ensuring proper growth, repair, and maintenance of tissues like blood, skin, and bones. These environments are crucial for tissue health and regeneration throughout life.