Fueling Genome Maintenance: On the Versatile Roles of NAD in Preserving DNA Integrity
Overview
Affiliations
NAD is a versatile biomolecule acting as a master regulator and substrate in various cellular processes, including redox regulation, metabolism, and various signaling pathways. In this article, we concisely and critically review the role of NAD in mechanisms promoting genome maintenance. Numerous NAD-dependent reactions are involved in the preservation of genome stability, the cellular DNA damage response, and other pathways regulating nucleic acid metabolism, such as gene expression and cell proliferation pathways. Of note, NAD serves as a substrate to ADP-ribosyltransferases, sirtuins, and potentially also eukaryotic DNA ligases, all of which regulate various aspects of DNA integrity, damage repair, and gene expression. Finally, we critically analyze recent developments in the field as well as discuss challenges associated with therapeutic actions intended to raise NAD levels.
Decoding the mechanisms behind second primary cancers.
Zeng M, Lin A, Jiang A, Qiu Z, Zhang H, Chen S J Transl Med. 2025; 23(1):115.
PMID: 39856672 PMC: 11762917. DOI: 10.1186/s12967-025-06151-9.
Sai Y, Ge W, Zhong L, Zhang Q, Xiao J, Shan Y Curr Res Toxicol. 2025; 8():100212.
PMID: 39834518 PMC: 11743872. DOI: 10.1016/j.crtox.2024.100212.
Devereaux J, Robinson A, Stavely R, Davidson M, Dargahi N, Ephraim R Front Med (Lausanne). 2024; 11:1379335.
PMID: 39015786 PMC: 11250461. DOI: 10.3389/fmed.2024.1379335.
A Molecular Perspective and Role of NAD in Ovarian Aging.
Ahmed M, Riaz U, Lv H, Yang L Int J Mol Sci. 2024; 25(9).
PMID: 38731898 PMC: 11083308. DOI: 10.3390/ijms25094680.
WRN loss accelerates abnormal adipocyte metabolism in Werner syndrome.
Tian Y, Lautrup S, Law P, Dinh N, Fang E, Chan W Cell Biosci. 2024; 14(1):7.
PMID: 38184705 PMC: 10770995. DOI: 10.1186/s13578-023-01183-4.