PARP1, DIDO3, and DHX9 Proteins Mutually Interact in Mouse Fibroblasts, with Effects on DNA Replication Dynamics, Senescence, and Oncogenic Transformation DOI Creative Commons
Agnes Fütterer, Sara Rodríguez‐Acebes, Juan Méndez

и другие.

Cells, Год журнала: 2024, Номер 13(2), С. 159 - 159

Опубликована: Янв. 15, 2024

The regulated formation and resolution of R-loops is a natural process in physiological gene expression. Defects R-loop metabolism can lead to DNA replication stress, which associated with variety diseases and, ultimately, cancer. proteins PARP1, DIDO3, DHX9 are important players regulation. We previously described the interaction between DIDO3 DHX9. Here, we show that, mouse embryonic fibroblasts, three physically linked dependent on PARP1 activity. C-terminal truncation leads impairment this interaction; concomitantly, cells increased stress senescence. also renders partially resistant vitro oncogenic transformation, an effect that be reversed by immortalization. propose form ternary complex regulates metabolism, preventing subsequent

Язык: Английский

PARP1 associates with R-loops to promote their resolution and genome stability DOI Creative Commons

Natalie Laspata,

Parminder Kaur, Sofiane Y. Mersaoui

и другие.

Nucleic Acids Research, Год журнала: 2023, Номер 51(5), С. 2215 - 2237

Опубликована: Фев. 16, 2023

Abstract PARP1 is a DNA-dependent ADP-Ribose transferase with ADP-ribosylation activity that triggered by DNA breaks and non-B structures to mediate their resolution. was also recently identified as component of the R-loop-associated protein-protein interaction network, suggesting potential role for in resolving this structure. R-loops are three-stranded nucleic acid consist RNA–DNA hybrid displaced non-template strand. involved crucial physiological processes but can be source genome instability if persistently unresolved. In study, we demonstrate binds vitro associates R-loop formation sites cells which activates its activity. Conversely, inhibition or genetic depletion causes an accumulation unresolved promotes genomic instability. Our study reveals novel sensor highlights suppressor

Язык: Английский

Процитировано

50

Human senataxin is a bona fide R-loop resolving enzyme and transcription termination factor DOI Creative Commons
Zdenka Hašanová, Veronika Klapstova, Odil Porrúa

и другие.

Nucleic Acids Research, Год журнала: 2023, Номер 51(6), С. 2818 - 2837

Опубликована: Март 2, 2023

Abstract Prolonged pausing of the transcription machinery may lead to formation three-stranded nucleic acid structures, called R-loops, typically resulting from annealing nascent RNA with template DNA. Unscheduled persistence R-loops and polymerases interfere itself other essential processes such as DNA replication repair. Senataxin (SETX) is a putative helicase, mutated in two neurodegenerative disorders, which has been implicated control R-loop accumulation termination. However, understanding precise role SETX these precluded by absence direct characterisation biochemical activities. Here, we purify characterise helicase domain parallel its yeast orthologue, Sen1. Importantly, show that bona fide ability resolve R-loops. Furthermore, retained termination activity Sen1 but functions species-specific manner. Finally, subsequent variants harbouring disease-associated mutations shed light into effect on folding properties. Altogether, results broaden our function gene expression maintenance genome integrity provide clues elucidate molecular basis SETX-associated diseases.

Язык: Английский

Процитировано

40

Helicases in R-loop Formation and Resolution DOI Creative Commons

Shizhuo Yang,

Lacey Winstone,

Sohaumn Mondal

и другие.

Journal of Biological Chemistry, Год журнала: 2023, Номер 299(11), С. 105307 - 105307

Опубликована: Сен. 29, 2023

With the development and wide usage of CRISPR technology, presence R-loop structures, which consist an RNA–DNA hybrid a displaced single-strand (ss) DNA, has become well accepted. structures have been implicated in variety circumstances play critical roles metabolism nucleic acid relevant biological processes, including transcription, DNA repair, telomere maintenance. Helicases are enzymes that use ATP-driven motor force to unwind double-strand (ds) dsRNA, or hybrids. Additionally, certain helicases strand-annealing activity. Thus, possess unique positions for biogenesis: they utilize their activity promote hybridization RNA leading formation R-loops; conversely, unwinding separate hybrids resolve R-loops. Indeed, numerous such as senataxin (SETX), Aquarius (AQR), WRN, BLM, RTEL1, PIF1, FANCM, ATRX (alpha-thalassemia/mental retardation, X-linked), CasDinG, several DEAD/H-box proteins reported while other helicases, Cas3 UPF1, stimulate formation. Moreover, like DDX1, DDX17, DHX9 identified both resolution. In this review, we will summarize latest understandings regarding metabolism. highlight challenges associated with drug discovery context targeting these helicases. R-loops three-stranded consisting single-stranded DNA. They various transcriptional regulation replication, genomic instability, class switch recombination B cells, damage maintenance (1Brickner J.R. Garzon J.L. Cimprich K.A. Walking tightrope: complex balancing act genome stability.Mol. Cell. 2022; 82: 2267-2297Google Scholar, 2Petermann E. Lan L. Zou Sources, resolution physiological relevance RNA-DNA hybrids.Nat. Rev. Mol. Cell Biol. 23: 521-540Google 3Hegazy Y.A. Fernando C.M. Tran E.J. The biology: good, bad, ugly.J. Chem. 2020; 295: 905-913Google 4Niehrs C. Luke B. Regulatory facilitators gene expression stability.Nat. 21: 167-178Google 5Garcia-Muse T. Aguilera A. R loops: from pathological roles.Cell. 2019; 179: 604-618Google Scholar). group molecular motors energy nucleoside triphosphate hydrolysis remodel molecules, protein–nucleic interactions (6Brosh Jr., R.M. Bohr V.A. Human premature aging, repair RecQ helicases.Nucleic Acids Res. 2007; 35: 7527-7544Google 7Dillingham M.S. Superfamily I modular components DNA-processing machines.Biochem. Soc. Trans. 2011; 39: 413-423Google 8Bernstein Gangloff S. Rothstein R. repair.Annu. Genet. 2010; 44: 393-417Google 9Jankowsky at work: binding rearranging.Trends Biochem. Sci. 36: 19-29Google Notably, some also strand annealing (10Wu Y. Unwinding rewinding: double faces helicase?.J. Nucleic Acids. 2012; 2012140601Google This property allows them crucial biogenesis. can double-stranded facilitate invasion, hybridize ssDNA, enabling Conversely, assembly disassembly. 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Commun. 3849Google Furthermore, III catalyze DSBs, transient protect 3ʹ overhang degradation before A (RPA) binding, demonstrating essential intermediate process (HR)-mediated (32Liu Hua Wang Li Yuan required recombination.Cell. 184: 1314-1329.e1310Google These findings indicate cause negative positive outcomes depending on environment R-loop. must be tightly regulated balance properly. neurodegenerative disorders cancers dysregulated more than half patients neuroinflammatory Aicardi-Goutières syndrome (AGS) biallelic mutations H2 (33Crow Y.J. Chase D.S. Lowenstein Schmidt Szynkiewicz Forte G.M. Gornall H.L. al.Characterization disease phenotypes TREX1, RNASEH2A, RNASEH2B, RNASEH2C, SAMHD1, ADAR, IFIH1.Am. Med. 2015; 167A: 296-312Google 34Lim Sanz L.A. Xu Hartono S.R. Genome-wide hypomethylation RNA:DNA accumulation Aicardi-Goutieres syndrome.Elife. 4e08007Google ataxia oculomotor apraxia 2 (AOA2) (35Moreira Klur Watanabe Nemeth A.H. 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Steinmetz al.Yeast Sen1 protects instability.Mol. 41: 21-32Google 149Alzu Bermejo Begnis Lucca Piccini Carotenuto al.Senataxin associates forks fork across RNA-polymerase-II-transcribed genes.Cell. 151: 835-846Google Scholar)AQR√Splicing factorAka IBP160(150Sollier Stork C.T. Garcia-Rubio M.L. Paulsen Transcription-coupled nucleotide excision R-loop-induced 2014; 777-785Google Scholar)UPF1Upf1√Nonsense mRNA surveillance(31Ngo Scholar)PIF1Rrm3, ScPif1, SpPfh1√Genomic nucleus mitochondriaS. cerevisiae members: Rrm3 ScPif1; pombe one: Pfh1(151Tran P.L.T. Pohl T.J. C.F. Chan Pott Zakian family suppress mediated tRNA genes.Nat. 2017; 815025Google Scholar)SF2WRN√Werner syndrome(63Marabitti Lillo Malacaria Palermo Sanchez Pichierri al.ATM pathway activation limits Werner cells.Nucleic 47: 3485-3502Google Scholar)BLMSgs1√Bloom syndrome(65Chang E.Y. Novoa C.A. Aristizabal M.J. 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Jolley Thomas al.CasDinG 5'-3' dsDNA three accessory domains IV immunity.Nucleic 8115-8132Google 75Cui X.Y. al.Type IV-A CRISPR-Csf complex: assembly, targeting, recruitment.Mol. 83: 2493-2508.e2495Google Scholar)SNF2ATRXRad54√ATRX syndromeA recent report shows unable Scholar)(72Nguyen D.T. Voon H.P.J. Xella Scott Clynes Babbs chromatin remodelling suppresses telomeric repeats.EMBO 18: 914-928Google Scholar)SMARCAL1√Schimke Immunoosseous DysplasiaAka HARP, helicase(71Hodson 153Yusufzai Kadonaga HARP helicase.Science. 2008; 322: 748-750Google Scholar)ZRANB3√African-specific diabetesAka (AH2)(71Hodson Scholar)DEAD-boxDDX1√√Retinoblastoma neuroblastoma(100Li Germain D.R. Po

Язык: Английский

Процитировано

32

R-loop and diseases: the cell cycle matters DOI Creative Commons
Yuqin Xu,

Yue Jiao,

Chengbin Liu

и другие.

Molecular Cancer, Год журнала: 2024, Номер 23(1)

Опубликована: Апрель 27, 2024

Abstract The cell cycle is a crucial biological process that involved in growth, development, and reproduction. It can be divided into G1, S, G2, M phases, each period closely regulated to ensure the production of two similar daughter cells with same genetic material. However, many obstacles influence cycle, including R-loop formed throughout this process. triple-stranded structure, composed an RNA: DNA hybrid single strand, which ubiquitous organisms from bacteria mammals. existence has important significance for regulation various physiological processes. aberrant accumulation due its limited resolving ability will detrimental cells. For example, damage genomic instability, caused by R-loop, activate checkpoints turn induce arrest death. At present, growing number factors have been proven prevent or eliminate thereby avoiding mutations. Therefore, we need gain detailed insight resolution at different stages cycle. In review, review current knowledge play role as well how mutations these lead onset progression diseases.

Язык: Английский

Процитировано

13

PSIP1/LEDGF reduces R-loops at transcription sites to maintain genome integrity DOI Creative Commons

Sundarraj Jayakumar,

Manthan Patel,

Fanny Boulet

и другие.

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Янв. 8, 2024

Abstract R-loops that accumulate at transcription sites pose a persistent threat to genome integrity. PSIP1 is chromatin protein associated with transcriptional elongation complex, possesses histone chaperone activity, and implicated in recruiting RNA processing DNA repair factors sites. Here, we show interacts other proteins involved R-loop homeostasis, including PARP1. Genome-wide mapping of PSIP1, γ-H2AX PSIP1-depleted human mouse cell lines revealed an accumulation damage gene promoters the absence PSIP1. causes local arrest transcription-replication conflict, leading damage. depletion increases 53BP1 foci reduces RAD51 foci, suggesting altered choice. Furthermore, sensitivity cancer cells PARP1 inhibitors DNA-damaging agents induce R-loop-induced These findings provide insights into mechanism through which maintains integrity site transcription.

Язык: Английский

Процитировано

12

Non-B DNA structures as a booster of genome instability DOI Creative Commons
Renée C. Duardo, Federico Guerra, Simona Pepe

и другие.

Biochimie, Год журнала: 2023, Номер 214, С. 176 - 192

Опубликована: Июль 8, 2023

Non-canonical secondary structures (NCSs) are alternative nucleic acid that differ from the canonical B-DNA conformation. NCSs often occur in repetitive DNA sequences and can adopt different conformations depending on sequence. The majority of these form context physiological processes, such as transcription-associated R-loops, G4s, well hairpins slipped-strand DNA, whose formation be dependent replication. It is therefore not surprising play important roles regulation key biological processes. In last years, increasing published data have supported their role thanks to genome-wide studies development bioinformatic prediction tools. Data also highlighted pathological structures. Indeed, alteration or stabilization cause impairment transcription replication, modification chromatin structure damage. These events lead a wide range recombination events, deletions, mutations chromosomal aberrations, well-known hallmarks genome instability which strongly associated with human diseases. this review, we summarize molecular processes through trigger instability, focus G-quadruplex, i-motif, R-loop, Z-DNA, hairpin, cruciform multi-stranded known triplexes.

Язык: Английский

Процитировано

22

Multifaceted Role of PARP1 in Maintaining Genome Stability Through Its Binding to Alternative DNA Structures DOI Creative Commons

Natalie Laspata,

Daniela Muoio, Elise Fouquerel

и другие.

Journal of Molecular Biology, Год журнала: 2023, Номер 436(1), С. 168207 - 168207

Опубликована: Июль 20, 2023

Alternative DNA structures that differ from the canonical B-form of can arise repetitive sequences and play beneficial roles in many cellular processes such as gene regulation chromatin organization. However, they also threaten genomic stability several ways including mutagenesis collisions with replication and/or transcription machinery, which lead to instability is associated human disease. Thus, careful non-B-DNA structure formation resolution crucial for maintenance genome integrity. Several protein factors have been demonstrated associate alternative facilitate their removal, one ADP-ribose transferase (ART) PARP1 (also called ADP-ribosyltransferase diphtheria toxin-like 1 or ARTD1), a multifaceted repair enzyme recognizes single- double-stranded breaks synthesizes chains poly (ADP-ribose) (PAR) recruit proteins. It now well appreciated nucleic acid beyond lesions, stalled forks, hairpins cruciforms, R-loops, G-quadruplexes (G4 DNA). In this review, we summarize current evidence direct association each these aforementioned structures, discuss role prevention structure-induced genetic instability. We will focus on mechanisms recognition binding by structure-based stimulation catalytic activity upon binding. Finally, some outstanding gaps literature offer speculative insight questions remain be experimentally addressed.

Язык: Английский

Процитировано

22

Looping out of control: R-loops in transcription-replication conflict DOI
Charanya Kumar, Dirk Remus

Chromosoma, Год журнала: 2023, Номер 133(1), С. 37 - 56

Опубликована: Июль 7, 2023

Язык: Английский

Процитировано

17

RNA biogenesis and RNA metabolism factors as R-loop suppressors: a hidden role in genome integrity DOI Open Access
Rosa Luna, Belén Gómez‐González, Andrés Aguilera

и другие.

Genes & Development, Год журнала: 2024, Номер unknown

Опубликована: Июль 10, 2024

Genome integrity relies on the accuracy of DNA metabolism, but as appreciated for more than four decades, transcription enhances mutation and recombination frequencies. More recent research provided evidence a previously unforeseen link between RNA which is often related to accumulation DNA–RNA hybrids R-loops. In addition physiological roles, R-loops interfere with replication repair, providing molecular scenario origin genome instability. Here, we review current knowledge multiple factors that prevent or resolve consequent transcription–replication conflicts thus act modulators dynamics.

Язык: Английский

Процитировано

7

Advancements and Challenges of R-loops in Cancers: Biological Insights and Future Directions DOI
Dengxiong Li, Fanglin Shao, Xinrui Li

и другие.

Cancer Letters, Год журнала: 2024, Номер 610, С. 217359 - 217359

Опубликована: Ноя. 27, 2024

Язык: Английский

Процитировано

5