Apoptotic cell death

Apoptotic cell death, commonly referred to as apoptosis, is a highly regulated and conserved process of programmed cell death essential for maintaining tissue homeostasis and eliminating damaged or unwanted cells (StatPearls, 2023). It is characterized morphologically by cell shrinkage, chromatin condensation, and nuclear fragmentation, leading to the formation of apoptotic bodies that are cleared by phagocytes without triggering an inflammatory response (NIH, 2022). In many diseases, this process is dysregulated; for example, cancer cells often evade apoptosis by overexpressing anti-apoptotic proteins like Bcl-2, while excessive apoptosis is a hallmark of neurodegenerative conditions such as Alzheimer's disease (Nature Reviews Cancer, 2019; PubMed, 2021). While apoptosis itself is a biological process and not a single molecular target, it is the primary functional outcome of many therapeutic interventions. Drugs like Venetoclax specifically target the molecular machinery of apoptosis to selectively induce death in hematologic malignancies (FDA, 2016).

Other names

ApoptosisProgrammed cell deathType I cell deathCellular suicidePCD

Drugs modulate apoptotic cell death by targeting specific regulatory proteins such as Bcl-2 (inhibiting anti-apoptotic signals), Caspases (activating proteolytic cascades), or Death Receptors (initiating extrinsic signaling), thereby either inducing death in malignant cells or preventing it in degenerative contexts (StatPearls, 2023; PubMed, 2021).