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Functions of mammalian SIRT4 in cellular metabolism and research progress in human cancer (Review)

  • Authors:
    • Changming Wang
    • Yan Liu
    • Yuyan Zhu
    • Chuize Kong
  • View Affiliations

  • Published online on: July 15, 2020     https://doi.org/10.3892/ol.2020.11872
  • Article Number: 11
  • Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Sirtuins are mammalian homologs of yeast silent information regulator two (SIRT) and are a highly conserved family of proteins, which act as nicotinamide adenine dinucleotide (NAD+)‑dependent histone deacetylases. The seven sirtuins (SIRT1‑7) share a conserved catalytic core domain; however, they have different enzyme activities, biological functions, and subcellular localizations. Among them, mitochondrial SIRT4 possesses ADP‑ribosyltransferase, NAD+‑dependent deacetylase, lipoamidase, and long‑chain deacylase activities and can modulate the function of substrate proteins via ADP‑ribosylation, delipoylation, deacetylation and long‑chain deacylation. SIRT4 has been shown to play a crucial role in insulin secretion, fatty acid oxidation, amino acid metabolism, ATP homeostasis, apoptosis, neurodegeneration, and cardiovascular diseases. In addition, recent studies have demonstrated that SIRT4 acts as a tumor suppressor. Here, the present review summarizes the enzymatic activities and biological functions of SIRT4, as well as its roles in cellular metabolism and human cancer, which are described in the current literature.
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October-2020
Volume 20 Issue 4

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Wang C, Liu Y, Zhu Y and Kong C: Functions of mammalian SIRT4 in cellular metabolism and research progress in human cancer (Review). Oncol Lett 20: 11, 2020
APA
Wang, C., Liu, Y., Zhu, Y., & Kong, C. (2020). Functions of mammalian SIRT4 in cellular metabolism and research progress in human cancer (Review). Oncology Letters, 20, 11. https://doi.org/10.3892/ol.2020.11872
MLA
Wang, C., Liu, Y., Zhu, Y., Kong, C."Functions of mammalian SIRT4 in cellular metabolism and research progress in human cancer (Review)". Oncology Letters 20.4 (2020): 11.
Chicago
Wang, C., Liu, Y., Zhu, Y., Kong, C."Functions of mammalian SIRT4 in cellular metabolism and research progress in human cancer (Review)". Oncology Letters 20, no. 4 (2020): 11. https://doi.org/10.3892/ol.2020.11872