Sirtuin inhibitors as anticancer agents

Area of Science:

• Biochemistry
• Molecular Biology
• Oncology

Background:

• Sirtuins are NAD+-dependent protein lysine deacylases regulating critical cellular functions.
• These enzymes impact transcription, cell survival, DNA repair, and longevity.
• Sirtuin dysregulation is implicated in various cancers.

Purpose of the Study:

• To review the biological roles of sirtuins in cancer.
• To summarize the development of sirtuin inhibitors.
• To explore the discrepancy between sirtuin's dual roles and inhibitor efficacy.

Main Methods:

• Literature review of biological findings on sirtuins and cancer.
• Summary of developed small-molecule sirtuin inhibitors.
• Analysis of pharmacological studies on sirtuin inhibition in cancer.

Main Results:

• Sirtuins exhibit both tumor-suppressing and tumor-promoting activities.
• Numerous small-molecule sirtuin inhibitors have been developed.
• Most inhibitors demonstrate anticancer effects in pharmacological studies.

Conclusions:

• A discrepancy exists between sirtuins' complex roles and the observed anticancer effects of their inhibitors.
• Further research is needed to reconcile these findings and optimize sirtuin inhibitors as cancer therapeutics.