Related Experiment Video
Updated: Jun 26, 2026

In Vivo Biosensor Tracks Non-apoptotic Caspase Activity in Drosophila
Published on: November 27, 2016
Caspases, apoptosis and aging
Jian-Hua Zhang1, Yingpei Zhang, Brian Herman
1Department of Cellular and Structural Biology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229, USA.
Abstract:
Caspases are a group of cysteine dependent aspartate-specific proteases. Originally found as the homolog of Ced-3 in C. elegans, 14 caspases have now been identified in mammals to date. Caspases play important roles in both the intrinsic and extrinsic apoptotic pathways and interact with the non-caspase apoptotic pathways. A number of recent published observations have suggested a strong association between apoptosis, age-related diseases and aging. Findings from our group and others reveal a strong correlation between alterations in caspase activity and aging. In this view point, we summarize current knowledge of the connection between caspases and aging observed in a variety of model systems from cultured cells in vitro to the in vivo models of rodents and humans.
Insights
Altered caspase activity is strongly linked to aging and age-related diseases. This review summarizes research connecting caspases, which are proteases, to the aging process across various models.
Area of Science:
- Biochemistry
- Molecular Biology
- Gerontology
Background:
- Caspases are cysteine-dependent aspartate-specific proteases.
- Fourteen types of caspases have been identified in mammals.
- Caspases are crucial in apoptosis and interact with non-caspase pathways.
Purpose of the Study:
- To summarize the current understanding of the relationship between caspases and aging.
- To highlight findings from various model systems, including cell cultures, rodents, and humans.
Main Methods:
- Review of published literature.
- Analysis of data from in vitro and in vivo studies.
- Correlation analysis of caspase activity and aging markers.
Main Results:
- A strong correlation exists between altered caspase activity and the aging process.
- Caspase involvement in aging is observed across diverse model systems.
- Apoptosis, age-related diseases, and aging show a significant association.
Conclusions:
- Caspase activity is a key factor in aging and age-related diseases.
- Further research into caspases may yield insights into mitigating aging.
- Understanding caspase roles is vital for gerontological studies.
Related Concept Videos
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...
Apoptosis
Caspases
The Extrinsic Apoptotic Pathway
The Intrinsic Apoptotic Pathway
Cellular Injury V: Apoptosis and Autophagy

