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- W2922166925 endingPage "246" @default.
- W2922166925 startingPage "246" @default.
- W2922166925 abstract "The finding that transcription occurs at chromosome ends has opened new fields of study on the roles of telomeric transcripts in chromosome end maintenance and genome stability. Indeed, the ends of chromosomes are required to be protected from activation of DNA damage response and DNA repair pathways. Chromosome end protection is achieved by the activity of specific proteins that associate with chromosome ends, forming telomeres. Telomeres need to be constantly maintained as they are in a heterochromatic state and fold into specific structures (T-loops), which may hamper DNA replication. In addition, in the absence of maintenance mechanisms, chromosome ends shorten at every cell division due to limitations in the DNA replication machinery, which is unable to fully replicate the extremities of chromosomes. Altered telomere structure or critically short chromosome ends generate dysfunctional telomeres, ultimately leading to replicative senescence or chromosome instability. Telomere biology is thus implicated in multiple human diseases, including cancer. Emerging evidence indicates that a class of long noncoding RNAs transcribed at telomeres, known as TERRA for “TElomeric Repeat-containing RNA,” actively participates in the mechanisms regulating telomere maintenance and chromosome end protection. However, the molecular details of TERRA activities remain to be elucidated. In this review, we discuss recent findings on the emerging roles of TERRA in telomere maintenance and genome stability and their implications in human diseases." @default.
- W2922166925 created "2019-03-22" @default.
- W2922166925 creator A5030307584 @default.
- W2922166925 creator A5053293309 @default.
- W2922166925 creator A5058556770 @default.
- W2922166925 date "2019-03-15" @default.
- W2922166925 modified "2023-09-30" @default.
- W2922166925 title "The Emerging Roles of TERRA in Telomere Maintenance and Genome Stability" @default.
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