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Inhibition of Cdk Activity02:34

Inhibition of Cdk Activity

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The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
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The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
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Deacetylation Assays to Unravel the Interplay between Sirtuins SIRT2 and Specific Protein-substrates
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Deacetylation Assays to Unravel the Interplay between Sirtuins SIRT2 and Specific Protein-substrates

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Sirtuin inhibitors as anticancer agents.

Jing Hu1, Hui Jing, Hening Lin

  • 1Department of Chemistry & Chemical Biology, Cornell University, Ithaca, NY 14850, USA.

Future Medicinal Chemistry
|June 26, 2014
PubMed
Summary
This summary is machine-generated.

Sirtuin enzymes play complex roles in cancer, acting as both tumor suppressors and promoters. However, sirtuin inhibitors show promise as anticancer agents, warranting further investigation.

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Last Updated: Apr 27, 2026

Deacetylation Assays to Unravel the Interplay between Sirtuins SIRT2 and Specific Protein-substrates
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Deacetylation Assays to Unravel the Interplay between Sirtuins SIRT2 and Specific Protein-substrates

Published on: February 27, 2016

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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.