Resident stem cell (RSC)

Resident stem cells are specialized, undifferentiated cells located within specific tissue niches that maintain and repair the body throughout life. Unlike embryonic stem cells, resident (or adult) stem cells are typically multipotent, meaning they can differentiate into a limited range of cell types specific to their tissue of origin, such as hematopoietic, neural, or mesenchymal lineages. In drug discovery, these cells are often the focus of regenerative medicine strategies aimed at stimulating endogenous repair mechanisms to treat degenerative diseases or injuries. However, 'Resident stem cells' is a broad biological category rather than a single molecular target; pharmacological intervention usually requires targeting specific receptors or signaling pathways (like Wnt or Notch) within these cells. Improper modulation of these populations carries significant risks, including the potential for tumorigenesis or the depletion of the stem cell pool.

Other names

Tissue-specific stem cellAdult stem cellSomatic stem cellEndogenous stem cellProgenitor cell

Activation of endogenous repair mechanisms via modulation of signaling pathways (e.g., Wnt, Notch, Hedgehog) or specific receptors (e.g., TPO receptor) to stimulate proliferation, mobilization, or differentiation of tissue-specific progenitors.