Molecular Classification
Signaling pathway, Cellular process
Other Names
Programmed cell death initiation
Disease Roles
CancerAutoimmune disordersDegenerative diseases

Apoptosis Induction Overview

Apoptosis induction refers to the initiation of programmed cell death, a tightly regulated process essential for development, tissue homeostasis, and defense against disease. There are two primary molecular pathways: the intrinsic (mitochondrial) and extrinsic (death receptor) pathways. Both converge on activation of effector/executioner caspases that orchestrate cellular breakdown. Regulation occurs through BCL-2 family proteins, decoy receptors, and c-FLIP. Induction of apoptosis serves functions such as removing damaged cells, regulation during development, and defense against viral infection. Failure or dysregulation contributes to diseases such as cancer, autoimmune disorders or degenerative diseases. Many anticancer therapies aim to induce apoptosis selectively in tumor cells.

Mechanism of Action

Activating proapoptotic molecules/caspases directly or inhibiting their natural inhibitors

Biological Functions

Cell death
Cell turnover
Homeostasis
Tumor suppression
Regulation during development
Defense against viral infection

Disease Associations

Cancer
Autoimmune disorders
Degenerative diseases
Viral infection

Safety Considerations

  • Off-target effects leading to excessive apoptosis
  • Resistance mechanisms in cancer cells

Interacting Drugs

Many anticancer therapies