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UPR(mt)-mediated cytoprotection and organismal aging
Anna M Schulz1, Cole M Haynes2
1Cell Biology Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA.
Biochimica Et Biophysica Acta
|April 11, 2015
Summary
The mitochondrial unfolded protein response (UPR(mt)) protects cells from damage and dysfunction. This review explores its role in aging, longevity, and disease.
Area of Science:
- Cellular Biology
- Mitochondrial Biology
- Aging Research
Background:
- Mitochondrial damage accumulates with age, impacting organismal health.
- The mitochondrial unfolded protein response (UPR(mt)) is a protective transcriptional program.
- UPR(mt) involves mitochondrial-to-nuclear signaling to maintain mitochondrial function and cellular health.
Purpose of the Study:
- To review the UPR(mt) and its function in various forms of mitochondrial dysfunction.
- To examine the role of UPR(mt) in aging and longevity.
- To discuss therapeutic strategies targeting UPR(mt) for cell survival and organismal health.
Main Methods:
- Literature review of UPR(mt) research.
- Analysis of studies on mitochondrial dysfunction (e.g., gene mutations, toxins).
- Evaluation of evidence for UPR(mt) in aging and longevity.
Main Results:
- UPR(mt) activation is observed in response to diverse mitochondrial insults.
- UPR(mt) influences proteostasis, metabolism, and innate immunity.
- Evidence for UPR(mt)'s role in aging and longevity is emerging and debated.
Conclusions:
- UPR(mt) is a critical cellular defense mechanism against mitochondrial dysfunction.
- Understanding UPR(mt) pathways offers potential therapeutic targets for age-related diseases.
- Further research is needed to fully elucidate UPR(mt)'s complex role in aging and longevity.
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