What this means
This is a review that gathers earlier studies on SIRT2, a protein that helps control how cells use energy. It does not show that SIRT2 changes how long people live.
Plain-English summary written by an AI model from the abstract. The original is below.
- Who it was tested in
- A review of earlier studies, not a new test
- Kind of research
- A summary of earlier studies
The science
- Original title
- SIRT2 in metabolism, aging, and longevity.
- Authors
- Li M, Dong Y, Ren W et al.
- Journal
- Frontiers in molecular biosciences
- Published
- Oct 26, 2026
- Study type
- Review
- PMID
- 42928844 ↗
Abstract
SIRT2, an NAD+-dependent deacetylase, is increasingly recognized as an important regulator of cellular metabolism and aging. By deacetylating diverse substrates, SIRT2 influences glucose metabolism, lipid metabolism, mitochondrial function, cytoskeletal dynamics, oxidative stress, and inflammatory responses, thereby contributing to cellular metabolic homeostasis and aging. Emerging evidence suggests that age-related alterations in NAD+ metabolism may affect SIRT2 activity and disrupt these processes, potentially promoting metabolic dysfunction, mitochondrial impairment, cellular senescence, and chronic inflammation. In addition, the effects of SIRT2 on aging appear to be highly context- and tissue-dependent, and its precise contribution to organismal longevity remains incompletely understood. In this review, we primarily focus on the role of SIRT2 in aging and longevity through the regulation of energy metabolism, with particular emphasis on the underlying molecular mechanisms and its interactions with metabolic and stress-responsive pathways. Understanding these mechanisms and regulations may provide new insights into SIRT2 biology and potential strategies for maintaining metabolic homeostasis and promoting healthy aging, even applications in clinic practice.
Li M, Dong Y, Ren W et al. SIRT2 in metabolism, aging, and longevity. Frontiers in molecular biosciences. 2026. doi:10.3389/fmolb.2026.1990670. PMID: 42928844. https://pubmed.ncbi.nlm.nih.gov/42928844/
Related research
Two drugs together eased stroke brain damage in mice
Researchers gave mice two compounds, alone and together, after a stroke-like injury to the brain. The mice given both had less brain damage and better nerve function than those given either one alone.
Mitochondrial Quality Control in Degenerative Musculoskeletal Diseases: Signaling Networks and Therapeutic Landscapes.
Degenerative musculoskeletal disorders, including osteoarthritis (OA), intervertebral disc degeneration (IVDD), and osteoporosis (OP), are increasingly viewed as disorders of mitochondrial quality control (MQC) rather…
Targeting of Protein Persulfidation in Aging and Age-Related Disorders.
Aging is associated with a progressive loss of proteostasis and increased susceptibility to neurodegenerative and metabolic disorders.
Eye supplements that target aging pathways: a review of current evidence
This review looked at vitamins and similar products for eye diseases tied to aging. It says early signs look promising, but long-term benefit is not yet proven.
SIRT1-Redox Crosstalk in Aging: Adaptive Capacity and Cellular State Transitions.
Aging gradually reduces the ability of cells to maintain and restore homeostasis under metabolic and oxidative stress.
Nicotinamide Mononucleotide-Producing Probiotic Strain B12-N Attenuates Aging and Cognitive Decline in a Caenorhabditis elegans Model of Alzheimer's Disease:…
Nicotinamide mononucleotide (NMN) is an active component found in probiotics that may help alleviate Alzheimer's disease and the effects of aging.
See all research on NAD+ boosters →