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Li X, Perdomo IMM, Rodrigues Alves Barbosa V, Diao C, Tarailo-Graovac M. The critical role of the iron-sulfur cluster and CTC components in DOG-1/BRIP1 function in Caenorhabditis elegans. Nucleic Acids Res 2024:gkae617. [PMID: 39011897 DOI: 10.1093/nar/gkae617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 06/26/2024] [Accepted: 07/02/2024] [Indexed: 07/17/2024] Open
Abstract
FANCJ/BRIP1, initially identified as DOG-1 (Deletions Of G-rich DNA) in Caenorhabditis elegans, plays a critical role in genome integrity by facilitating DNA interstrand cross-link repair and resolving G-quadruplex structures. Its function is tightly linked to a conserved [4Fe-4S] cluster-binding motif, mutations of which contribute to Fanconi anemia and various cancers. This study investigates the critical role of the iron-sulfur (Fe-S) cluster in DOG-1 and its relationship with the cytosolic iron-sulfur protein assembly targeting complex (CTC). We found that a DOG-1 mutant, expected to be defective in Fe-S cluster binding, is primarily localized in the cytoplasm, leading to heightened DNA damage sensitivity and G-rich DNA deletions. We further discovered that the deletion of mms-19, a nonessential CTC component, also resulted in DOG-1 sequestered in cytoplasm and increased DNA damage sensitivity. Additionally, we identified that CIAO-1 and CIAO-2B are vital for DOG-1's stability and repair functions but unlike MMS-19 have essential roles in C. elegans. These findings confirm the CTC and Fe-S cluster as key elements in regulating DOG-1, crucial for genome integrity. Additionally, this study advances our understanding of the CTC's role in Fe-S protein regulation and development in C. elegans, offering a model to study its impact on multicellular organism development.
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Affiliation(s)
- Xiao Li
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
| | - Ivette Maria Menendez Perdomo
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
| | - Victoria Rodrigues Alves Barbosa
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
| | - Catherine Diao
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
| | - Maja Tarailo-Graovac
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
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2
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Wynen F, Krautstrunk J, Müller LM, Graf V, Brinkmann V, Fritz G. Cisplatin-induced DNA crosslinks trigger neurotoxicity in C. elegans. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119591. [PMID: 37730131 DOI: 10.1016/j.bbamcr.2023.119591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 09/14/2023] [Accepted: 09/14/2023] [Indexed: 09/22/2023]
Abstract
The anticancer drug cisplatin (CisPt) injures post-mitotic neuronal cells, leading to neuropathy. Furthermore, CisPt triggers cell death in replicating cells. Here, we aim to unravel the relevance of different types of CisPt-induced DNA lesions for evoking neurotoxicity. To this end, we comparatively analyzed wild-type and loss of function mutants of C. elegans lacking key players of specific DNA repair pathways. Deficiency in ercc-1, which is essential for nucleotide excision repair (NER) and interstrand crosslink (ICL) repair, revealed the most pronounced enhancement in CisPt-induced neurotoxicity with respect to the functionality of post-mitotic chemosensory AWA neurons, without inducing neuronal cell death. Potentiation of CisPt-triggered neurotoxicity in ercc-1 mutants was accompanied by complex alterations in both basal and CisPt-stimulated mRNA expression of genes involved in the regulation of neurotransmission, including cat-4, tph-1, mod-1, glr-1, unc-30 and eat-18. Moreover, xpf-1, csb-1, csb-1;xpc-1 and msh-6 mutants were significantly more sensitive to CisPt-induced neurotoxicity than the wild-type, whereas xpc-1, msh-2, brc-1 and dog-1 mutants did not distinguish from the wild-type. The majority of DNA repair mutants also revealed increased basal germline apoptosis, which was analyzed for control. Yet, only xpc-1, xpc-1;csb-1 and dog-1 mutants showed elevated apoptosis in the germline following CisPt treatment. To conclude, we provide evidence that neurotoxicity, including sensory neurotoxicity, is triggered by CisPt-induced DNA intra- and interstrand crosslinks that are subject of repair by NER and ICL repair. We hypothesize that especially ERCC1/XPF, CSB and MSH6-related DNA repair protects from chemotherapy-induced neuropathy in the context of CisPt-based anticancer therapy.
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Affiliation(s)
- Fabian Wynen
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Johannes Krautstrunk
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Lisa Marie Müller
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Viktoria Graf
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Vanessa Brinkmann
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany.
| | - Gerhard Fritz
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany.
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Bujarrabal-Dueso A, Sendtner G, Meyer DH, Chatzinikolaou G, Stratigi K, Garinis GA, Schumacher B. The DREAM complex functions as conserved master regulator of somatic DNA-repair capacities. Nat Struct Mol Biol 2023; 30:475-488. [PMID: 36959262 PMCID: PMC10113156 DOI: 10.1038/s41594-023-00942-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/08/2023] [Indexed: 03/25/2023]
Abstract
The DNA-repair capacity in somatic cells is limited compared with that in germ cells. It has remained unknown whether not only lesion-type-specific, but overall repair capacities could be improved. Here we show that the DREAM repressor complex curbs the DNA-repair capacities in somatic tissues of Caenorhabditis elegans. Mutations in the DREAM complex induce germline-like expression patterns of multiple mechanisms of DNA repair in the soma. Consequently, DREAM mutants confer resistance to a wide range of DNA-damage types during development and aging. Similarly, inhibition of the DREAM complex in human cells boosts DNA-repair gene expression and resistance to distinct DNA-damage types. DREAM inhibition leads to decreased DNA damage and prevents photoreceptor loss in progeroid Ercc1-/- mice. We show that the DREAM complex transcriptionally represses essentially all DNA-repair systems and thus operates as a highly conserved master regulator of the somatic limitation of DNA-repair capacities.
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Affiliation(s)
- Arturo Bujarrabal-Dueso
- Institute for Genome Stability in Aging and Disease, Medical Faculty, University and University Hospital of Cologne, Cologne, Germany
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Georg Sendtner
- Institute for Genome Stability in Aging and Disease, Medical Faculty, University and University Hospital of Cologne, Cologne, Germany
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - David H Meyer
- Institute for Genome Stability in Aging and Disease, Medical Faculty, University and University Hospital of Cologne, Cologne, Germany
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Georgia Chatzinikolaou
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Department of Biology, University of Crete, Heraklion, Crete, Greece
| | - Kalliopi Stratigi
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Department of Biology, University of Crete, Heraklion, Crete, Greece
| | - George A Garinis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Department of Biology, University of Crete, Heraklion, Crete, Greece
| | - Björn Schumacher
- Institute for Genome Stability in Aging and Disease, Medical Faculty, University and University Hospital of Cologne, Cologne, Germany.
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany.
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4
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Li Q, Kaur A, Okada K, McKenney RJ, Engebrecht J. Differential requirement for BRCA1-BARD1 E3 ubiquitin ligase activity in DNA damage repair and meiosis in the Caenorhabditis elegans germ line. PLoS Genet 2023; 19:e1010457. [PMID: 36716349 PMCID: PMC9910797 DOI: 10.1371/journal.pgen.1010457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 02/09/2023] [Accepted: 01/19/2023] [Indexed: 02/01/2023] Open
Abstract
The tumor suppressor BRCA1-BARD1 complex regulates many cellular processes; of critical importance to its tumor suppressor function is its role in genome integrity. Although RING E3 ubiquitin ligase activity is the only known enzymatic activity of the complex, the in vivo requirement for BRCA1-BARD1 E3 ubiquitin ligase activity has been controversial. Here we probe the role of BRCA1-BARD1 E3 ubiquitin ligase activity in vivo using C. elegans. Genetic, cell biological, and biochemical analyses of mutants defective for E3 ligase activity suggest there is both E3 ligase-dependent and independent functions of the complex in the context of DNA damage repair and meiosis. We show that E3 ligase activity is important for nuclear accumulation of the complex and specifically to concentrate at meiotic recombination sites but not at DNA damage sites in proliferating germ cells. While BRCA1 alone is capable of monoubiquitylation, BARD1 is required with BRCA1 to promote polyubiquitylation. We find that the requirement for E3 ligase activity and BARD1 in DNA damage signaling and repair can be partially alleviated by driving the nuclear accumulation and self-association of BRCA1. Our data suggest that in addition to E3 ligase activity, BRCA1 may serve a structural role for DNA damage signaling and repair while BARD1 plays an accessory role to enhance BRCA1 function.
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Affiliation(s)
- Qianyan Li
- Department of Molecular and Cellular Biology, University of California Davis, Davis, California, United States of America
- Biochemistry, Molecular, Cellular and Developmental Biology Graduate Group, University of California Davis, Davis, California, United States of America
| | - Arshdeep Kaur
- Department of Molecular and Cellular Biology, University of California Davis, Davis, California, United States of America
| | - Kyoko Okada
- Department of Molecular and Cellular Biology, University of California Davis, Davis, California, United States of America
| | - Richard J. McKenney
- Department of Molecular and Cellular Biology, University of California Davis, Davis, California, United States of America
- Biochemistry, Molecular, Cellular and Developmental Biology Graduate Group, University of California Davis, Davis, California, United States of America
| | - JoAnne Engebrecht
- Department of Molecular and Cellular Biology, University of California Davis, Davis, California, United States of America
- Biochemistry, Molecular, Cellular and Developmental Biology Graduate Group, University of California Davis, Davis, California, United States of America
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5
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Yan H, Wang R, Ma S, Huang D, Wang S, Ren J, Lu C, Chen X, Lu X, Zheng Z, Zhang W, Qu J, Zhou Y, Liu GH. Lineage Landscape: a comprehensive database that records lineage commitment across species. Nucleic Acids Res 2022; 51:D1061-D1066. [PMID: 36305824 PMCID: PMC9825468 DOI: 10.1093/nar/gkac951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/23/2022] [Accepted: 10/11/2022] [Indexed: 01/30/2023] Open
Abstract
Commitment to specific cell lineages is critical for mammalian embryonic development. Lineage determination, differentiation, maintenance, and organogenesis result in diverse life forms composed of multiple cell types. To understand the formation and maintenance of living individuals, including human beings, a comprehensive database that integrates multi-omic information underlying lineage differentiation across multiple species is urgently needed. Here, we construct Lineage Landscape, a database that compiles, analyzes and visualizes transcriptomic and epigenomic information related to lineage development in a collection of species. This landscape draws together datasets that capture the ongoing changes in cell lineages from classic model organisms to human beings throughout embryonic, fetal, adult, and aged stages, providing comprehensive, open-access information that is useful to researchers of a broad spectrum of life science disciplines. Lineage Landscape contains single-cell gene expression and bulk transcriptomic, DNA methylation, histone modifications, and chromatin accessibility profiles. Using this database, users can explore genes of interest that exhibit dynamic expression patterns at the transcriptional or epigenetic levels at different stages of lineage development. Lineage Landscape currently includes over 6.6 million cells, 15 million differentially expressed genes and 36 million data entries across 10 species and 34 organs. Lineage Landscape is free to access, browse, search, and download at http://data.iscr.ac.cn/lineage/#/home.
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Affiliation(s)
| | | | | | | | | | | | - Changfa Lu
- Computer Network Information Center, Chinese Academy of Sciences, Beijing 100190, China
| | - Xin Chen
- Computer Network Information Center, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaoyong Lu
- University of Chinese Academy of Sciences, Beijing 100049, China,China National Center for Bioinformation, Beijing 100101, China,CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
| | - Zikai Zheng
- University of Chinese Academy of Sciences, Beijing 100049, China,China National Center for Bioinformation, Beijing 100101, China,CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
| | - Weiqi Zhang
- Correspondence may also be addressed to Weiqi Zhang. Tel: +86 10 8409 7838;
| | - Jing Qu
- Correspondence may also be addressed to Jing Qu. Tel: +86 10 6480 7768;
| | - Yuanchun Zhou
- Correspondence may also be addressed to Yuanchun Zhou. Tel: +86 10 5881 2561;
| | - Guang-Hui Liu
- To whom correspondence should be addressed. Tel: +86 10 6480 7583;
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6
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Odiba AS, Ezechukwu CS, Liao G, Li S, Chen Z, Liu X, Fang W, Jin C, Wang B. Loss of NSE-4 Perturbs Genome Stability and DNA Repair in Caenorhabditis elegans. Int J Mol Sci 2022; 23:ijms23137202. [PMID: 35806213 PMCID: PMC9266361 DOI: 10.3390/ijms23137202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/15/2022] [Accepted: 05/24/2022] [Indexed: 02/04/2023] Open
Abstract
The Structural Maintenance of Chromosomes (SMC) complex plays an important role in maintaining chromosome integrity, in which the SMC5/6 complex occupies a central position by facilitating mitotic and meiotic processes as well as DNA repair. NSE-4 Kleisin is critical for both the organization and function of the SMC5/6 complex, bridging NSE1 and NSE3 (MAGE related) with the head domains of the SMC5 and SMC6 proteins. Despite the conservation in protein sequence, no functional relevance of the NSE-4 homologous protein (NSE-4) in Caenorhabditis elegans has been reported. Here, we demonstrated the essential role of C. elegans NSE-4 in genome maintenance and DNA repair. Our results showed that NSE-4 is essential for the maintenance of chromosomal structure and repair of a range of chemically induced DNA damage. Furthermore, NSE-4 is involved in inter-sister repair during meiosis. NSE-4 localizes on the chromosome and is indispensable for the localization of NSE-1. Collectively, our data from this study provide further insight into the evolutionary conservation and diversification of NSE-4 function in the SMC-5/6 complex.
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Affiliation(s)
- Arome Solomon Odiba
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, China; (A.S.O.); (C.S.E.); (S.L.); (W.F.); (C.J.)
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- Department of Genetics and Biotechnology, University of Nigeria, Nsukka 410001, Nigeria
| | - Chiemekam Samuel Ezechukwu
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, China; (A.S.O.); (C.S.E.); (S.L.); (W.F.); (C.J.)
- Department of Zoology and Environmental Biology, University of Nigeria, Nsukka 410001, Nigeria
| | - Guiyan Liao
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, China; (A.S.O.); (C.S.E.); (S.L.); (W.F.); (C.J.)
- Correspondence: (G.L.); (B.W.)
| | - Siqiao Li
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, China; (A.S.O.); (C.S.E.); (S.L.); (W.F.); (C.J.)
| | - Zhongliang Chen
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China; (Z.C.); (X.L.)
| | - Xihui Liu
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China; (Z.C.); (X.L.)
| | - Wenxia Fang
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, China; (A.S.O.); (C.S.E.); (S.L.); (W.F.); (C.J.)
| | - Cheng Jin
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, China; (A.S.O.); (C.S.E.); (S.L.); (W.F.); (C.J.)
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Bin Wang
- State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, China; (A.S.O.); (C.S.E.); (S.L.); (W.F.); (C.J.)
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China; (Z.C.); (X.L.)
- Correspondence: (G.L.); (B.W.)
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7
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Hindi NN, Elsakrmy N, Ramotar D. The base excision repair process: comparison between higher and lower eukaryotes. Cell Mol Life Sci 2021; 78:7943-7965. [PMID: 34734296 PMCID: PMC11071731 DOI: 10.1007/s00018-021-03990-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 09/08/2021] [Accepted: 10/14/2021] [Indexed: 01/01/2023]
Abstract
The base excision repair (BER) pathway is essential for maintaining the stability of DNA in all organisms and defects in this process are associated with life-threatening diseases. It is involved in removing specific types of DNA lesions that are induced by both exogenous and endogenous genotoxic substances. BER is a multi-step mechanism that is often initiated by the removal of a damaged base leading to a genotoxic intermediate that is further processed before the reinsertion of the correct nucleotide and the restoration of the genome to a stable structure. Studies in human and yeast cells, as well as fruit fly and nematode worms, have played important roles in identifying the components of this conserved DNA repair pathway that maintains the integrity of the eukaryotic genome. This review will focus on the components of base excision repair, namely, the DNA glycosylases, the apurinic/apyrimidinic endonucleases, the DNA polymerase, and the ligases, as well as other protein cofactors. Functional insights into these conserved proteins will be provided from humans, Saccharomyces cerevisiae, Drosophila melanogaster, and Caenorhabditis elegans, and the implications of genetic polymorphisms and knockouts of the corresponding genes.
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Affiliation(s)
- Nagham Nafiz Hindi
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Doha, Qatar
| | - Noha Elsakrmy
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Doha, Qatar
| | - Dindial Ramotar
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Doha, Qatar.
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8
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Marchal L, Hamsanathan S, Karthikappallil R, Han S, Shinglot H, Gurkar AU. Analysis of representative mutants for key DNA repair pathways on healthspan in Caenorhabditis elegans. Mech Ageing Dev 2021; 200:111573. [PMID: 34562508 DOI: 10.1016/j.mad.2021.111573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 08/26/2021] [Accepted: 09/21/2021] [Indexed: 12/30/2022]
Abstract
Although the link between DNA damage and aging is well accepted, the role of different DNA repair proteins on functional/physiological aging is not well-defined. Here, using Caenorhabditis elegans, we systematically examined the effect of three DNA repair genes involved in key genome stability pathways. We assayed multiple health proxies including molecular, functional and resilience measures to define healthspan. Loss of XPF-1/ERCC-1, a protein involved in nucleotide excision repair (NER), homologous recombination (HR) and interstrand crosslink (ICL) repair, showed the highest impairment of functional and stress resilience measures along with a shortened lifespan. brc-1 mutants, with a well-defined role in HR and ICL are short-lived and highly sensitive to acute stressors, specifically oxidative stress. In contrast, ICL mutant, fcd-2 did not impact lifespan or most healthspan measures. Our efforts also uncover that DNA repair mutants show high sensitivity to oxidative stress with age, suggesting that this measure could act as a primary proxy for healthspan. Together, these data suggest that impairment of multiple DNA repair genes can drive functional/physiological aging. Further studies to examine specific DNA repair genes in a tissue specific manner will help dissect the importance and mechanistic role of these repair systems in biological aging.
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Affiliation(s)
- Lucile Marchal
- Aging Institute of UPMC and the University of Pittsburgh School of Medicine, 100 Technology Dr, Pittsburgh, PA, 15219, USA
| | - Shruthi Hamsanathan
- Aging Institute of UPMC and the University of Pittsburgh School of Medicine, 100 Technology Dr, Pittsburgh, PA, 15219, USA
| | - Roshan Karthikappallil
- Aging Institute of UPMC and the University of Pittsburgh School of Medicine, 100 Technology Dr, Pittsburgh, PA, 15219, USA; Medical Sciences Division, University of Oxford, Oxford, UK
| | - Suhao Han
- Aging Institute of UPMC and the University of Pittsburgh School of Medicine, 100 Technology Dr, Pittsburgh, PA, 15219, USA
| | - Himaly Shinglot
- Aging Institute of UPMC and the University of Pittsburgh School of Medicine, 100 Technology Dr, Pittsburgh, PA, 15219, USA
| | - Aditi U Gurkar
- Aging Institute of UPMC and the University of Pittsburgh School of Medicine, 100 Technology Dr, Pittsburgh, PA, 15219, USA; Division of Geriatric Medicine, Department of Medicine, University of Pittsburgh School of Medicine, 3471 Fifth Avenue, Kaufmann Medical Building Suite 500, Pittsburgh, PA, 15213, USA; Geriatric Research, Education and Clinical Centre, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, 15240, USA.
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9
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Rieckher M, Garinis GA, Schumacher B. Molecular pathology of rare progeroid diseases. Trends Mol Med 2021; 27:907-922. [PMID: 34272172 DOI: 10.1016/j.molmed.2021.06.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/18/2021] [Accepted: 06/22/2021] [Indexed: 12/21/2022]
Abstract
Progeroid syndromes (PSs) are characterized by the premature onset of age-related pathologies. The genetic mutations underlying PSs are functionally linked to genome maintenance and repair, supporting the causative role of DNA damage accumulation in aging. Recent advances from studies in animal models of PSs have provided new insight into the role of DNA repair mechanisms in human disease and the physiological adaptations to accumulating DNA damage during aging. The molecular pathology of PSs is reminiscent of the natural aging process, highlighting the relevance for a wide range of age-related diseases. Recent progress has led to the development of novel therapeutic strategies against age-related diseases that are relevant to rare diseases as well as the general aging population.
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Affiliation(s)
- Matthias Rieckher
- Institute for Genome Stability in Aging and Disease, Medical Faculty, University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany; Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine (CMMC), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany
| | - George A Garinis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, GR70013, Heraklion, Crete, Greece; Department of Biology, University of Crete, Heraklion, Crete, Greece
| | - Björn Schumacher
- Institute for Genome Stability in Aging and Disease, Medical Faculty, University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany; Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine (CMMC), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany.
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10
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Zhang X, Tian S, Beese-Sims SE, Chen J, Shin N, Colaiácovo MP, Kim HM. Histone demethylase AMX-1 is necessary for proper sensitivity to interstrand crosslink DNA damage. PLoS Genet 2021; 17:e1009715. [PMID: 34329293 PMCID: PMC8357103 DOI: 10.1371/journal.pgen.1009715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 08/11/2021] [Accepted: 07/14/2021] [Indexed: 01/02/2023] Open
Abstract
Histone methylation is dynamically regulated to shape the epigenome and adjust central nuclear processes including transcription, cell cycle control and DNA repair. Lysine-specific histone demethylase 2 (LSD2) has been implicated in multiple types of human cancers. However, its functions remain poorly understood. This study investigated the histone demethylase LSD2 homolog AMX-1 in C. elegans and uncovered a potential link between H3K4me2 modulation and DNA interstrand crosslink (ICL) repair. AMX-1 is a histone demethylase and mainly localizes to embryonic cells, the mitotic gut and sheath cells. Lack of AMX-1 expression resulted in embryonic lethality, a decreased brood size and disorganized premeiotic tip germline nuclei. Expression of AMX-1 and of the histone H3K4 demethylase SPR-5 is reciprocally up-regulated upon lack of each other and the mutants show increased H3K4me2 levels in the germline, indicating that AMX-1 and SPR-5 regulate H3K4me2 demethylation. Loss of AMX-1 function activates the CHK-1 kinase acting downstream of ATR and leads to the accumulation of RAD-51 foci and increased DNA damage-dependent apoptosis in the germline. AMX-1 is required for the proper expression of mismatch repair component MutL/MLH-1 and sensitivity against ICLs. Interestingly, formation of ICLs lead to ubiquitination-dependent subcellular relocalization of AMX-1. Taken together, our data suggest that AMX-1 functions in ICL repair in the germline.
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Affiliation(s)
- Xiaojuan Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Sisi Tian
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Sara E. Beese-Sims
- Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Jingjie Chen
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Nara Shin
- Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Monica P. Colaiácovo
- Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Hyun-Min Kim
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
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11
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Cao J, Liu Z, Wang C, Wang J, Pan B, Qie S. Cell Models for Birth Defects Caused by Chloroethyl Nitrosourea-Induced DNA Lesions. J Craniofac Surg 2021; 32:778-782. [PMID: 33705035 DOI: 10.1097/scs.0000000000006850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
ABSTRACT Birth defects have been linked to administration of alkylating agents during pregnancy. The anti-tumor efficacy of alkylating agents correlate with their ability to induce DNA lesions, especially interstrand crosslinks (ICLs). Yet the role of DNA damages in birth defects remains to be clarified, owing, in part, to a lack of cell models. Here we generate DNA lesions in NIH/3T3 cells to mimic defects in fetus triggered by 3-Bis(2-chloroethyl)-1-nitrosourea (BCNU, carmustine). CCK-8 assay suggests that BCNU-induced cell death was dose-dependent. Alkaline comet tests and γ-H2AX staining confirm DNA ICLs and other forms of DNA damages caused by BCNUs. The cell cycle analysis shows cells arrest in G2/M phase until crosslinks repair is complete. Taken together, all these experiments demonstrate we have successfully established normal cell models for birth defects caused by BCNU-mediated DNA damages. The model can not only guide the development of effective and low-toxicity anticancer drugs, but also be of great significance for the study of neonatal malformation triggered by BCNUs.
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Affiliation(s)
- Jiankun Cao
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Zongjian Liu
- Department of Rehabilitation, Beijing Rehabilitation Hospital affiliated to Capital Medical University, Beijing, China
| | - Congxiao Wang
- Department of Rehabilitation, Beijing Rehabilitation Hospital affiliated to Capital Medical University, Beijing, China
| | - Jie Wang
- Department of Rehabilitation, Beijing Rehabilitation Hospital affiliated to Capital Medical University, Beijing, China
| | - Bo Pan
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Shuyan Qie
- Department of Rehabilitation, Beijing Rehabilitation Hospital affiliated to Capital Medical University, Beijing, China
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12
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Suehiro Y, Yoshina S, Motohashi T, Iwata S, Dejima K, Mitani S. Efficient collection of a large number of mutations by mutagenesis of DNA damage response defective animals. Sci Rep 2021; 11:7630. [PMID: 33828169 PMCID: PMC8027614 DOI: 10.1038/s41598-021-87226-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 03/24/2021] [Indexed: 02/01/2023] Open
Abstract
With the development of massive parallel sequencing technology, it has become easier to establish new model organisms that are ideally suited to the specific biological phenomena of interest. Considering the history of research using classical model organisms, we believe that the efficient construction and sharing of gene mutation libraries will facilitate the progress of studies using these new model organisms. Using C. elegans, we applied the TMP/UV mutagenesis method to animals lacking function in the DNA damage response genes atm-1 and xpc-1. This method produces genetic mutations three times more efficiently than mutagenesis of wild-type animals. Furthermore, we confirmed that the use of next-generation sequencing and the elimination of false positives through machine learning could automate the process of mutation identification with an accuracy of over 95%. Eventually, we sequenced the whole genomes of 488 strains and isolated 981 novel mutations generated by the present method; these strains have been made available to anyone who wants to use them. Since the targeted DNA damage response genes are well conserved and the mutagens used in this study are also effective in a variety of species, we believe that our method is generally applicable to a wide range of animal species.
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Affiliation(s)
- Yuji Suehiro
- Department of Physiology, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
| | - Sawako Yoshina
- Department of Physiology, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
| | - Tomoko Motohashi
- Department of Physiology, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
| | - Satoru Iwata
- Chubu University Center for Education in Laboratory Animal Research, Kasugai, Aichi, Japan
| | - Katsufumi Dejima
- Department of Physiology, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
| | - Shohei Mitani
- Department of Physiology, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan.
- Tokyo Women's Medical University Institute for Integrated Medical Sciences, Shinjuku, Tokyo, Japan.
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13
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Why Concurrent CDDP and Radiotherapy Has Synergistic Antitumor Effects: A Review of In Vitro Experimental and Clinical-Based Studies. Int J Mol Sci 2021; 22:ijms22063140. [PMID: 33808722 PMCID: PMC8003508 DOI: 10.3390/ijms22063140] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/08/2021] [Accepted: 03/17/2021] [Indexed: 01/17/2023] Open
Abstract
Chemo-radiotherapy, which combines chemotherapy with radiotherapy, has been clinically practiced since the 1970s, and various anticancer drugs have been shown to have a synergistic effect when used in combination with radiotherapy. In particular, cisplatin (CDDP), which is often the cornerstone of multi-drug combination cancer therapies, is highly versatile and frequently used in combination with radiotherapy for the treatment of many cancers. Therefore, the mechanisms underlying the synergistic effect of CDDP and radiotherapy have been widely investigated, although no definitive conclusions have been reached. We present a review of the combined use of CDDP and radiotherapy, including the latest findings, and propose a mechanism that could explain their synergistic effects. Our hypothesis involves the concepts of overlap and complementation. “Overlap” refers to the overlapping reactions of CDDP and radiation-induced excessive oxidative loading, which lead to accumulating damage to cell components, mostly within the cytoplasm. “Complementation” refers to the complementary functions of CDDP and radiation that lead to DNA damage, primarily in the nucleus. In fact, the two concepts are inseparable, but conceptualizing them separately will help us understand the mechanism underlying the synergism between radiation therapy and other anticancer drugs, and help us to design future radiosensitizers.
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14
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Gartner A, Engebrecht J. DNA repair, recombination, and damage signaling. Genetics 2021; 220:6522877. [PMID: 35137093 PMCID: PMC9097270 DOI: 10.1093/genetics/iyab178] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 10/10/2021] [Indexed: 01/09/2023] Open
Abstract
DNA must be accurately copied and propagated from one cell division to the next, and from one generation to the next. To ensure the faithful transmission of the genome, a plethora of distinct as well as overlapping DNA repair and recombination pathways have evolved. These pathways repair a large variety of lesions, including alterations to single nucleotides and DNA single and double-strand breaks, that are generated as a consequence of normal cellular function or by external DNA damaging agents. In addition to the proteins that mediate DNA repair, checkpoint pathways have also evolved to monitor the genome and coordinate the action of various repair pathways. Checkpoints facilitate repair by mediating a transient cell cycle arrest, or through initiation of cell suicide if DNA damage has overwhelmed repair capacity. In this chapter, we describe the attributes of Caenorhabditis elegans that facilitate analyses of DNA repair, recombination, and checkpoint signaling in the context of a whole animal. We review the current knowledge of C. elegans DNA repair, recombination, and DNA damage response pathways, and their role during development, growth, and in the germ line. We also discuss how the analysis of mutational signatures in C. elegans is helping to inform cancer mutational signatures in humans.
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Affiliation(s)
- Anton Gartner
- Department for Biological Sciences, IBS Center for Genomic Integrity, Ulsan National Institute of Science and Technology, Ulsan 689-798, Republic of Korea,Corresponding author: (A.G.); (J.E.)
| | - JoAnne Engebrecht
- Department of Molecular and Cellular Biology, University of California Davis, Davis, CA 95616, USA,Corresponding author: (A.G.); (J.E.)
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15
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Elsakrmy N, Zhang-Akiyama QM, Ramotar D. The Base Excision Repair Pathway in the Nematode Caenorhabditis elegans. Front Cell Dev Biol 2020; 8:598860. [PMID: 33344454 PMCID: PMC7744777 DOI: 10.3389/fcell.2020.598860] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/09/2020] [Indexed: 12/12/2022] Open
Abstract
Exogenous and endogenous damage to the DNA is inevitable. Several DNA repair pathways including base excision, nucleotide excision, mismatch, homologous and non-homologous recombinations are conserved across all organisms to faithfully maintain the integrity of the genome. The base excision repair (BER) pathway functions to repair single-base DNA lesions and during the process creates the premutagenic apurinic/apyrimidinic (AP) sites. In this review, we discuss the components of the BER pathway in the nematode Caenorhabditis elegans and delineate the different phenotypes caused by the deletion or the knockdown of the respective DNA repair gene, as well as the implications. To date, two DNA glycosylases have been identified in C. elegans, the monofunctional uracil DNA glycosylase-1 (UNG-1) and the bifunctional endonuclease III-1 (NTH-1) with associated AP lyase activity. In addition, the animal possesses two AP endonucleases belonging to the exonuclease-3 and endonuclease IV families and in C. elegans these enzymes are called EXO-3 and APN-1, respectively. In mammalian cells, the DNA polymerase, Pol beta, that is required to reinsert the correct bases for DNA repair synthesis is not found in the genome of C. elegans and the evidence indicates that this role could be substituted by DNA polymerase theta (POLQ), which is known to perform a function in the microhomology-mediated end-joining pathway in human cells. The phenotypes observed by the C. elegans mutant strains of the BER pathway raised many challenging questions including the possibility that the DNA glycosylases may have broader functional roles, as discuss in this review.
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Affiliation(s)
- Noha Elsakrmy
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Qatar
| | - Qiu-Mei Zhang-Akiyama
- Laboratory of Stress Response Biology, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - Dindial Ramotar
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Qatar
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16
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Oh S, Bae W, Alfhili MA, Lee MH. Nucleotide Excision Repair, XPA-1, and the Translesion Synthesis Complex, POLZ-1 and REV-1, Are Critical for Interstrand Cross-Link Repair in Caenorhabditis elegans Germ Cells. Biochemistry 2020; 59:3554-3561. [PMID: 32945661 DOI: 10.1021/acs.biochem.0c00719] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Interstrand cross-links (ICLs) are adducts of covalently linked nucleotides in opposing DNA strands that obstruct replication and prime cells for malignant transformation or premature cell death. ICLs may be caused by alkylating agents or ultraviolet (UV) irradiation. These toxic lesions are removed by diverse repair mechanisms such as the Fanconi anemia (FA) pathway, nucleotide excision repair (NER), translesion synthesis (TLS), and homologous recombination (HR). In mammals, the xeroderma pigmentosum group F (XP-F) protein participates in both the FA pathway and NER, while DNA polymerase ζ (POLZ-1) and REV-1 mediate TLS. Nevertheless, little is known regarding the genetic determinants of these pathways in ICL repair and damage tolerance in germ cells. In this study, we examined the sensitivity of Caenorhabditis elegans germ cells to ICLs generated by trimethylpsoralen/ultraviolet A (TMP/UV-A) combination, and embryonic mortality was employed as a surrogate for DNA damage in germ cells. Our results show that XPA-1, POLZ-1, and REV-1 were more critical than FA pathway mediators in preserving genomic stability in C. elegans germ cells. Notably, mutant worms lacking both XPA-1 and POLZ-1 (or REV-1) were more sensitive to ICLs compared to either single mutant alone. Moreover, knockdown of XPA-1 and REV-1 leads to the retarded disappearance of RPA-1 and RAD-51 foci upon ICL damage. Since DNA repair mechanisms are broadly conserved, our findings may have ramifications for prospective therapeutic interventions in humans.
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Affiliation(s)
- Sinae Oh
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, 03772 Seoul, South Korea
| | - Woori Bae
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, 03772 Seoul, South Korea
| | - Mohammad A Alfhili
- Chair of Medical and Molecular Genetics Research, Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 12372, Saudi Arabia
| | - Myon Hee Lee
- Department of Internal Medicine, Hematology/Oncology Division, Brody School of Medicine at East Carolina University, Greenville, North Carolina 27834, United States
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17
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Unhooking of an interstrand cross-link at DNA fork structures by the DNA glycosylase NEIL3. DNA Repair (Amst) 2019; 86:102752. [PMID: 31923807 DOI: 10.1016/j.dnarep.2019.102752] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/16/2019] [Accepted: 11/19/2019] [Indexed: 01/06/2023]
Abstract
Interstrand DNA-DNA cross-links (ICLs) are generated by endogenous processes, drugs, and environmental toxins. Understanding the cellular pathways by which various ICLs are repaired is critical to understanding their biological effects. Recent studies showed that replication-dependent repair of an ICL derived from the reaction of an abasic (AP) site with an adenine residue (dA) on the opposing strand of duplex DNA proceeds via a novel mechanism in which the DNA glycosylase NEIL3 unhooks the ICL. Here we examined the ability of the glycosylase domain of murine NEIL3 (MmuNEIL3-GD) to unhook dA-AP ICLs. The enzyme selectively unhooks the dA-AP ICL located at the duplex/single-strand junction of splayed duplexes that model the strand-separated DNA at the leading edge of a replication fork. We show that the ability to unhook the dA-AP ICL is a specialized function of NEIL3 as this activity is not observed in other BER enzymes. Importantly, NEIL3 only unhooks the dA-AP ICL when the AP residue is located on what would be the leading template strand of a model replication fork. The same specificity for the leading template strand was observed with a 5,6-dihydrothymine monoadduct, demonstrating that this preference is a general feature of the glycosylase and independent of the type of DNA damage. Overall, the results show that the glycosylase domain of NEIL3, lacking the C-terminal NPL4 and GRF zinc finger motifs, is competent to unhook the dA-AP ICL in splayed substrates and independently enforces important substrate preferences on the repair process.
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18
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Abstract
Nucleotide excision repair (NER) is a highly conserved mechanism to remove helix-distorting DNA lesions. A major substrate for NER is DNA damage caused by environmental genotoxins, most notably ultraviolet radiation. Xeroderma pigmentosum, Cockayne syndrome and trichothiodystrophy are three human disorders caused by inherited defects in NER. The symptoms and severity of these diseases vary dramatically, ranging from profound developmental delay to cancer predisposition and accelerated ageing. All three syndromes include developmental abnormalities, indicating an important role for optimal transcription and for NER in protecting against spontaneous DNA damage during embryonic development. Here, we review the current knowledge on genes that function in NER that also affect embryonic development, in particular the development of a fully functional nervous system.
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Affiliation(s)
- Sofia J Araújo
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028 Barcelona, Spain.,Institute of Biomedicine, University of Barcelona (IBUB), Barcelona, Spain
| | - Isao Kuraoka
- Department of Chemistry, Faculty of Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
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19
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Williams AB, Heider F, Messling JE, Rieckher M, Bloch W, Schumacher B. Restoration of Proteostasis in the Endoplasmic Reticulum Reverses an Inflammation-Like Response to Cytoplasmic DNA in Caenorhabditis elegans. Genetics 2019; 212:1259-1278. [PMID: 31248887 PMCID: PMC6707470 DOI: 10.1534/genetics.119.302422] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 06/24/2019] [Indexed: 12/17/2022] Open
Abstract
Innate immune responses protect organisms against various insults, but may lead to tissue damage when aberrantly activated. In higher organisms, cytoplasmic DNA can trigger inflammatory responses that can lead to tissue degeneration. Simpler metazoan models could shed new mechanistic light on how inflammatory responses to cytoplasmic DNA lead to pathologies. Here, we show that in a DNase II-defective Caenorhabditis elegans strain, persistent cytoplasmic DNA leads to systemic tissue degeneration and loss of tissue functionality due to impaired proteostasis. These pathological outcomes can be therapeutically alleviated by restoring protein homeostasis, either via ectopic induction of the ER unfolded protein response or N-acetylglucosamine treatment. Our results establish C. elegans as an ancestral metazoan model for studying the outcomes of inflammation-like conditions caused by persistent cytoplasmic DNA and provide insight into potential therapies for human conditions involving chronic inflammation.
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Affiliation(s)
- Ashley B Williams
- Institute for Genome Stability in Ageing and Disease, Medical Faculty, University of Cologne, 50931, Germany
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931, Germany
- Systems Biology of Ageing Cologne, University of Cologne, 50931, Germany
| | - Felix Heider
- Institute for Genome Stability in Ageing and Disease, Medical Faculty, University of Cologne, 50931, Germany
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931, Germany
- Systems Biology of Ageing Cologne, University of Cologne, 50931, Germany
| | - Jan-Erik Messling
- Institute for Genome Stability in Ageing and Disease, Medical Faculty, University of Cologne, 50931, Germany
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931, Germany
- Systems Biology of Ageing Cologne, University of Cologne, 50931, Germany
| | - Matthias Rieckher
- Institute for Genome Stability in Ageing and Disease, Medical Faculty, University of Cologne, 50931, Germany
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931, Germany
- Systems Biology of Ageing Cologne, University of Cologne, 50931, Germany
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sports Medicine, German Sports University, 50933 Cologne, Germany
| | - Björn Schumacher
- Institute for Genome Stability in Ageing and Disease, Medical Faculty, University of Cologne, 50931, Germany
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931, Germany
- Systems Biology of Ageing Cologne, University of Cologne, 50931, Germany
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20
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Bianco JN, Schumacher B. MPK-1/ERK pathway regulates DNA damage response during development through DAF-16/FOXO. Nucleic Acids Res 2019; 46:6129-6139. [PMID: 29788264 PMCID: PMC6159517 DOI: 10.1093/nar/gky404] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 05/01/2018] [Indexed: 01/25/2023] Open
Abstract
Ultraviolet (UV) induces distorting lesions to the DNA that can lead to stalling of the RNA polymerase II (RNAP II) and that are removed by transcription-coupled nucleotide excision repair (TC-NER). In humans, mutations in the TC-NER genes CSA and CSB lead to severe postnatal developmental defects in Cockayne syndrome patients. In Caenorhabditis elegans, mutations in the TC-NER genes csa-1 and csb-1, lead to developmental growth arrest upon UV treatment. We conducted a genetic suppressor screen in the nematode to identify mutations that could suppress the developmental defects in csb-1 mutants. We found that mutations in the ERK1/2 MAP kinase mpk-1 alleviate the developmental retardation in TC-NER mutants, while constitutive activation of the RAS-MAPK pathway exacerbates the DNA damage-induced growth arrest. We show that MPK-1 act via insulin/insulin-like signaling pathway and regulates the FOXO transcription factor DAF-16 to mediate the developmental DNA damage response.
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Affiliation(s)
- Julien N Bianco
- Institute for Genome Stability in Ageing and Disease, Medical Faculty, University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany.,Cologne Excellence Cluster for Cellular Stress Responses in Ageing-Associated Diseases (CECAD) and Center for Molecular Medicine (CMMC), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany
| | - Björn Schumacher
- Institute for Genome Stability in Ageing and Disease, Medical Faculty, University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany.,Cologne Excellence Cluster for Cellular Stress Responses in Ageing-Associated Diseases (CECAD) and Center for Molecular Medicine (CMMC), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany
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21
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Nepal M, Che R, Zhang J, Ma C, Fei P. Fanconi Anemia Signaling and Cancer. Trends Cancer 2017; 3:840-856. [PMID: 29198440 DOI: 10.1016/j.trecan.2017.10.005] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/16/2017] [Accepted: 10/19/2017] [Indexed: 12/19/2022]
Abstract
The extremely high cancer incidence associated with patients suffering from a rare human genetic disease, Fanconi anemia (FA), demonstrates the importance of FA genes. Over the course of human tumor development, FA genes perform critical tumor-suppression roles. In doing so, FA provides researchers with a unique genetic model system to study cancer etiology. Here, we review how aberrant function of the 22 FA genes and their signaling network contributes to malignancy. From this perspective, we will also discuss how the knowledge discovered from FA research serves basic and translational cancer research.
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Affiliation(s)
- Manoj Nepal
- University of Hawaii Cancer Center, Honolulu, HI, USA; Graduate Program of Molecular Biosciences and Bioengineering, University of Hawaii, Honolulu, HI, USA; Equal contribution
| | - Raymond Che
- University of Hawaii Cancer Center, Honolulu, HI, USA; Graduate Program of Molecular Biosciences and Bioengineering, University of Hawaii, Honolulu, HI, USA; Equal contribution
| | - Jun Zhang
- Department of Laboratory Medicine and Pathology, Mayo Clinic Foundation, USA
| | - Chi Ma
- University of Hawaii Cancer Center, Honolulu, HI, USA
| | - Peiwen Fei
- University of Hawaii Cancer Center, Honolulu, HI, USA; Graduate Program of Molecular Biosciences and Bioengineering, University of Hawaii, Honolulu, HI, USA.
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