Tier 3 — preclinical

Deciphering the role of SIRT6 in suppressing the AMPK-mTOR-TFEB axis: regulation of autophagy activation in HCC

Cong Shan Li, Hua Jin, Ruoyu Meng, Seung-Woo Baek, Seong-Hun Kim, Ok Hee Chai, Byung Hyun Park, Ju-Seog Lee, Na Ri Lee, Soo Mi Kim
Cancer Gene Therapy 2026 33(4):440-455

Bibliography

PubMed
PMID 41957523
Funding
Supported by NCI grants P50 CA217674 and R01 CA237327 and National Research Foundation of Korea grants 2017R1A5A2015061 and 2021R1A2C2013505.
Competing interests
Authors declared no competing interests.

Study snapshot

DesignMechanistic HCC study using molecular perturbation, cell models, animal experiments and human tissues.
ModelHepatocellular carcinoma cells, animal tumor models and human HCC tissue.
SampleMultiple experiments; exact group sizes vary across assays.
InterventionSIRT6 upregulation and pathway perturbation of AMPK-mTOR-TFEB.
DurationModel-specific experimental durations.
EndpointsAMPK activation; mTOR suppression; TFEB nuclear translocation; Autophagy; Cell proliferation and death; Tumor-suppressive effects

What the study showed, in plain terms

In hepatocellular carcinoma, increasing SIRT6 activated AMPK, suppressed mTOR and moved TFEB into the nucleus, increasing autophagy and suppressing tumor-cell proliferation.

Key findings

The study identifies a SIRT6-AMPK-mTOR-TFEB mechanism that supports a tumor-suppressive role for SIRT6 in HCC, contrasting with cancers where SIRT6 can be oncogenic.

What this study can and cannot tell us

Disease-specific preclinical/translational evidence cannot justify generalized cancer-prevention claims for SIRT6 activation.

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