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Updated: Sep 22, 2025

Deacetylation Assays to Unravel the Interplay between Sirtuins SIRT2 and Specific Protein-substrates
Published on: February 27, 2016
SIRT7 in the aging process
Francisco Alejandro Lagunas-Rangel1
1Department of Surgical Sciences, Uppsala University, BMC, Husargatan 3, Box 593, 751 24, Uppsala, Sweden. francisco.lagunas@neuro.uu.se.
Abstract:
Aging is the result of the accumulation of a wide variety of molecular and cellular damage over time. This has been associated with a number of features termed hallmarks of aging, including genomic instability, loss of proteostasis, telomere attrition, dysregulated nutrient sensing, mitochondrial dysfunction, cellular senescence, stem cell exhaustion, and impaired intercellular communication. On the other hand, sirtuins are enzymes with an important role in aging and life extension, of which humans have seven paralogs (SIRT1 to SIRT7). SIRT7 is the least studied sirtuin to date, but it has been reported to serve important functions, such as promoting ribosomal RNA expression, aiding in DNA damage repair, and regulating chromatin compaction. Several studies have established a close relationship between SIRT7 and age-related processes, but knowledge in this area is still scarce. Therefore, the purpose of this review was to analyze how SIRT7 is associated with each of the hallmarks of aging, as well as with some of age-associated diseases, such as cardiovascular diseases, obesity, osteoporosis, and cancer.
Insights
This review explores the role of Sirtuin 7 (SIRT7) in aging. It examines SIRT7
Area of Science:
- Molecular Biology
- Gerontology
- Biochemistry
Background:
- Aging results from accumulated molecular and cellular damage.
- Hallmarks of aging include genomic instability, loss of proteostasis, and cellular senescence.
- Sirtuins are key enzymes in aging and longevity; SIRT7 is the least studied human sirtuin.
Purpose of the Study:
- To analyze the association between SIRT7 and the hallmarks of aging.
- To investigate SIRT7's role in age-associated diseases like cardiovascular diseases, obesity, osteoporosis, and cancer.
Main Methods:
- Literature review and analysis of existing studies on SIRT7.
- Correlation of SIRT7 functions with aging hallmarks and diseases.
Main Results:
- SIRT7 plays roles in ribosomal RNA expression, DNA repair, and chromatin compaction.
- Evidence suggests a link between SIRT7 and age-related processes.
- SIRT7 is implicated in cardiovascular diseases, obesity, osteoporosis, and cancer.
Conclusions:
- SIRT7 is significantly associated with multiple hallmarks of aging.
- Further research into SIRT7's functions may reveal therapeutic targets for age-related diseases.
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