Scientists Discover DARE Cells That Survive Apoptosis

Scientists have identified a population of cells called DARE cells that begin programmed cell death, or apoptosis, but survive and help rebuild damaged tissue. The discovery was made at the Weizmann Institute of Science in Israel and was published in Nature Communications on 18 September 2026.

Apoptosis and Caspases

Apoptosis is a form of programmed cell death that removes damaged, infected, or unneeded cells in multicellular organisms. Caspases are protease enzymes that usually drive apoptosis, but the study found that they can also support cell survival in some cells.

DARE Cells and Tissue Regeneration

DARE stands for cells that initiate death but remain active enough to contribute to repair. In fruit fly larvae experiments, these cells multiplied and replenished nearly half of the damaged tissue within 48 hours.

Programmed Cell Revival in Human Cells

On 27 August 2025, scientists at the CSIR-Centre for Cellular and Molecular Biology in India announced Programmed Cell Revival, or PCR, in human cells. The work, published in The EMBO Journal, described cells that reverse the cell-death process and restore function in wound and burn models.

Important Facts for Exams

• Apoptosis is a genetically controlled process of cell death found in animals and other multicellular organisms.
• Caspases are central enzymes in apoptosis and belong to the family of cysteine proteases.
• Compensatory proliferation is a biological process in which surviving cells divide to replace lost tissue.
• Fruit fly larvae are widely used in regeneration studies because they allow rapid observation of tissue repair.

Resistance to Further Damage

A study from 12 January 2026 found that descendants of DARE cells became seven times more resistant to cell death. The same line of research linked this survival pathway with cancer recurrence and treatment resistance in some tumours.

Relevance in Regenerative Biology

Compensatory proliferation has been observed for nearly 50 years in regeneration research. Recent studies from the Weizmann Institute and CCMB have identified molecular pathways that connect cell death, survival, and tissue repair across species.