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Updated: Jun 8, 2026

Lighting Up the Pathways to Caspase Activation Using Bimolecular Fluorescence Complementation
Published on: March 5, 2018
Putative functions of caspase-2
Loretta Dorstyn1, Sharad Kumar
1Centre for Cancer Biology, SA Pathology Frome Road, Adelaide, SA 5000 Australia.
Abstract:
Caspase-2 is the most evolutionarily conserved of caspase family members, yet its physiological function has remained unclear and is a matter of considerable debate. Newly published data now suggest that caspase-2 is required for cell cycle regulation, repair of damaged DNA, and in suppressing Myc-induced lymphomagenesis. Additionally, loss of Casp2 in mice leads to features of premature ageing. These findings suggest that caspase-2 has non-apoptotic functions in addition to its context-dependent roles in cell death.
Insights
Caspase-2 (Cellular Apoptosis Related Caspase 2) is vital for DNA repair and cell cycle regulation. Loss of Caspase-2 in mice results in premature aging, highlighting its non-apoptotic roles.
Area of Science:
- Molecular Biology
- Cell Biology
- Genetics
Background:
- Caspase-2 is a highly conserved caspase family member.
- Its precise physiological functions remain largely undefined and debated.
- Previous research has not fully elucidated its role beyond apoptosis.
Purpose of the Study:
- To investigate the physiological functions of caspase-2.
- To explore the non-apoptotic roles of caspase-2 in cellular processes.
- To understand the implications of caspase-2 deficiency in vivo.
Main Methods:
- Analysis of newly published data and experimental findings.
- Investigating the effects of Casp2 deficiency in mouse models.
- Assessing cellular processes including DNA repair and cell cycle regulation.
Main Results:
- Caspase-2 is essential for regulating the cell cycle.
- Caspase-2 plays a role in the repair of damaged DNA.
- Loss of Casp2 in mice leads to premature aging phenotypes.
- Caspase-2 is involved in suppressing Myc-induced lymphomagenesis.
Conclusions:
- Caspase-2 possesses significant non-apoptotic functions.
- These functions include cell cycle control and DNA repair.
- Caspase-2 deficiency has implications for aging and cancer suppression.
Related Concept Videos
Caspases
The Intrinsic Apoptotic Pathway
The Extrinsic Apoptotic Pathway
Apoptosis
Cellular Injury V: Apoptosis and Autophagy
Overview of Cell Death
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the 20th century...

