Sirtuin Modulators in Cellular and Animal Models of Human Diseases

Jun Young Hong1, Hening Lin1,2

  • 1Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, United States.

Frontiers in Pharmacology
|October 15, 2021
PubMed

Insights

Sirtuins are enzymes that regulate key cell functions and are implicated in diseases like cancer. This review summarizes genetic and drug-based approaches to modulate sirtuins for treating cancer, neurological, and cardiovascular conditions.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genetics

Background:

  • Sirtuins are NAD+-dependent enzymes removing acyl groups from proteins.
  • They regulate crucial cellular processes like proliferation, metabolism, and migration.
  • Seven human sirtuins (SIRT1-7) exhibit distinct activities and roles.

Purpose of the Study:

  • To review genetic and pharmacological modulation of sirtuins.
  • Focus on sirtuins' roles in cancer, neurological, and cardiovascular diseases.
  • To highlight the significance of sirtuins in disease pathology.

Main Methods:

  • Literature review of genetic modifications affecting sirtuins.
  • Analysis of pharmacological agents targeting sirtuin activity.
  • Synthesis of findings related to sirtuin modulation in specific diseases.

Main Results:

  • Sirtuins are implicated in cancer, neurodegeneration, and cardiovascular diseases.
  • Genetic and pharmacological strategies offer therapeutic potential.
  • Modulation impacts cell proliferation, genome stability, and metabolism.

Conclusions:

  • Sirtuins are critical targets for therapeutic intervention.
  • Understanding sirtuin modulation is key for treating major human diseases.
  • Further research into sirtuin modulators is warranted.

Related Concept Videos

NF-κB-dependent Signaling Pathway02:26

NF-κB-dependent Signaling Pathway

The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
7.9K
PI3K/mTOR/AKT Signaling Pathway01:22

PI3K/mTOR/AKT Signaling Pathway

The mammalian target of rapamycin  (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1  (mTORC1) and mTOR complex 2  (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast,  mTORC2 consists of a...
4.2K
EPS and iPS Cells in Disease Research01:21

EPS and iPS Cells in Disease Research

Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
3.0K
Covalently Linked Protein Regulators02:04

Covalently Linked Protein Regulators

Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
7.9K
Regulation of the Unfolded Protein Response01:31

Regulation of the Unfolded Protein Response

Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
2.7K