50-Year-Old Mystery of Tissue Regeneration Solved by New Research
Indian Defence Review • • science
Key Points:
- Researchers at the Weizmann Institute discovered a unique population of cells called DARE cells that survive despite activation of death pathways, actively regenerating damaged tissue and replenishing nearly half of it within 48 hours.
- Another cell type, NARE cells, contributes to tissue repair but relies on signals from DARE cells; removal of DARE cells halts compensatory proliferation, highlighting a cooperative regeneration process.
- A molecular motor protein was identified that tethers initiator caspases to the cell membrane in DARE cells, preventing apoptosis from progressing, a mechanism that may also enable tumor cells to resist radiation therapy.
- Descendants of DARE cells exhibit significantly enhanced resistance to cell death after repeated irradiation, potentially explaining the increased aggress
