Sirtuin pathway · Senotherapeutics

SIRT6 Activator Research

SIRT6 is one of seven mammalian sirtuins — NAD+-dependent enzymes that regulate gene expression, DNA repair, and cellular metabolism. It sits primarily in the nucleus, where it deacetylates histones, mono-ADP-ribosylates DNA repair proteins, and silences retrotransposable elements. SIRT6 activity declines with age; mice with reduced SIRT6 age prematurely, and mice with extra SIRT6 live longer. This hub tracks the emerging evidence on compounds that stimulate SIRT6 enzymatic activity. The current dominant class is fucoidans — sulphated polysaccharides from brown seaweed — with additional candidates emerging from plant polyphenol and small-molecule chemistry. Every paper here has been indexed to its source PubMed record and is grouped by what the evidence actually tells us: DNA repair, cellular senescence, healthspan, and safety.

Evidence at a glance

Tier 1

Tier 2

Tier 3

Tier 4

Cellular Senescence

Tier 3

Fucoidans are senotherapeutics that enhance SIRT6-dependent DNA repair

Robbins PD et al. · Research Square (preprint, not peer-reviewed) · 2025

Preclinical mechanistic study combining in vitro senescent cell screens with in vivo mouse work in naturally aged and progeroid models; findings remain preliminary as the paper is a Research Square preprint that has not undergone peer review.

DNA repair

Tier 3

Genomic Instability and Aging-like Phenotype in the Absence of Mammalian SIRT6

Mostoslavsky R et al. · Cell · 2006

Landmark preclinical genetic knockout study establishing the mammalian SIRT6 phenotype in cells and mice; foundational loss-of-function evidence with no human data.

Neurological

Tier 3

Neuroprotective functions for the histone deacetylase SIRT6

Kaluski S et al. · Cell Reports · 2017

Mechanistic preclinical study combining brain-specific conditional knockout mouse, cellular CRISPR and shRNA models, and human Alzheimer's disease tissue analysis; published in a peer-reviewed journal.