Yogendra Singh Rajpurohit, Mitu Lal, Dhirendra Kumar Sharma, Ishu Soni
{"title":"Human TLS DNA polymerase: saviors or threats under replication stress?","authors":"Yogendra Singh Rajpurohit, Mitu Lal, Dhirendra Kumar Sharma, Ishu Soni","doi":"10.1007/s11010-025-05291-2","DOIUrl":null,"url":null,"abstract":"<p><p>The maintenance of genomic stability is crucial for life, threatened by DNA damage from both endogenous and exogenous sources. Cells employ DNA damage response through various repair mechanisms and DNA damage tolerance via translesion synthesis (TLS), to bypass DNA lesions and prevent replication fork collapse. This review explores the roles of human TLS polymerases in navigating replication stress, a critical process that can lead to genomic instability and cancer. It discusses TLS polymerase's dual role in genome preservation under certain physiological conditions while may also contribute to adaptive mutagenesis, highlighting their significance in DNA damage tolerance, somatic hypermutations, and cancer therapeutics. Understanding these mechanisms offers insights for developing targeted cancer therapies.</p>","PeriodicalId":18724,"journal":{"name":"Molecular and Cellular Biochemistry","volume":" ","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Molecular and Cellular Biochemistry","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1007/s11010-025-05291-2","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CELL BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
The maintenance of genomic stability is crucial for life, threatened by DNA damage from both endogenous and exogenous sources. Cells employ DNA damage response through various repair mechanisms and DNA damage tolerance via translesion synthesis (TLS), to bypass DNA lesions and prevent replication fork collapse. This review explores the roles of human TLS polymerases in navigating replication stress, a critical process that can lead to genomic instability and cancer. It discusses TLS polymerase's dual role in genome preservation under certain physiological conditions while may also contribute to adaptive mutagenesis, highlighting their significance in DNA damage tolerance, somatic hypermutations, and cancer therapeutics. Understanding these mechanisms offers insights for developing targeted cancer therapies.
期刊介绍:
Molecular and Cellular Biochemistry: An International Journal for Chemical Biology in Health and Disease publishes original research papers and short communications in all areas of the biochemical sciences, emphasizing novel findings relevant to the biochemical basis of cellular function and disease processes, as well as the mechanics of action of hormones and chemical agents. Coverage includes membrane transport, receptor mechanism, immune response, secretory processes, and cytoskeletal function, as well as biochemical structure-function relationships in the cell.
In addition to the reports of original research, the journal publishes state of the art reviews. Specific subjects covered by Molecular and Cellular Biochemistry include cellular metabolism, cellular pathophysiology, enzymology, ion transport, lipid biochemistry, membrane biochemistry, molecular biology, nuclear structure and function, and protein chemistry.