Researchers identify molecular switch controlling stressed cell survival and death
A team at Ben-Gurion University of the Negev has identified a molecular mechanism that determines whether human cells survive stress or undergo programmed death.
ER signaling pathway under pressure
The endoplasmic reticulum acts as the cell's main protein production center. When stressed, this organelle releases proteins into the cytosol to block tumor suppressors and deactivate death enzymes like caspase-3.
Mechanism behind survival escape
Cancer cells often use this pathway to resist chemotherapy treatments in harsh environments. Scientists previously did not understand why this protective route shuts down when stress becomes extreme.
New insights for treatment
The study published in Redox Biology clarifies the redox-driven tipping point governing this process. These findings could help overcome resistance in aggressive tumors by targeting the molecular switch.
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