1
|
Agarwal H, Tal P, Goldfinger N, Chattopadhyay E, Malkin D, Rotter V, Attery A. Mutant p53 reactivation restricts the protumorigenic consequences of wild type p53 loss of heterozygosity in Li-Fraumeni syndrome patient-derived fibroblasts. Cell Death Differ 2024:10.1038/s41418-024-01307-4. [PMID: 38745079 DOI: 10.1038/s41418-024-01307-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 04/13/2024] [Accepted: 04/26/2024] [Indexed: 05/16/2024] Open
Abstract
The p53 tumor suppressor, encoded by the TP53 gene, serves as a major barrier against malignant transformation. Patients with Li-Fraumeni syndrome (LFS) inherit a mutated TP53 allele from one parent and a wild-type TP53 allele from the other. Subsequently, the wild-type allele is lost and only the mutant TP53 allele remains. This process, which is termed loss of heterozygosity (LOH), results in only mutant p53 protein expression. We used primary dermal fibroblasts from LFS patients carrying the hotspot p53 gain-of-function pathogenic variant, R248Q to study the LOH process and characterize alterations in various pathways before and after LOH. We previously described the derivation of mutant p53 reactivating peptides, designated pCAPs (p53 Conformation Activating Peptides). In this study, we tested the effect of lead peptide pCAP-250 on LOH and on its associated cellular changes. We report that treatment of LFS fibroblasts with pCAP-250 prevents the accumulation of mutant p53 protein, inhibits LOH, and alleviates its cellular consequences. Furthermore, prolonged treatment with pCAP-250 significantly reduces DNA damage and restores long-term genomic stability. pCAPs may thus be contemplated as a potential preventive treatment to prevent or delay early onset cancer in carriers of mutant p53.
Collapse
Affiliation(s)
- Himanshi Agarwal
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Perry Tal
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Naomi Goldfinger
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Esita Chattopadhyay
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - David Malkin
- Department of Genetics and Genome Biology and the Division of Hematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
- Departments of Medical Biophysics and Pediatrics, University of Toronto, Toronto, ON, Canada
| | - Varda Rotter
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
| | - Ayush Attery
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
- Department of Tumor Cell Biology, St Jude Children's Research Hospital, Memphis, TN, USA.
| |
Collapse
|
2
|
Slyskova J, Muniesa-Vargas A, da Silva I, Drummond R, Park J, Häckes D, Poetsch I, Ribeiro-Silva C, Moretton A, Heffeter P, Schärer O, Vermeulen W, Lans H, Loizou J. Detection of oxaliplatin- and cisplatin-DNA lesions requires different global genome repair mechanisms that affect their clinical efficacy. NAR Cancer 2023; 5:zcad057. [PMID: 38058548 PMCID: PMC10696645 DOI: 10.1093/narcan/zcad057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 11/02/2023] [Accepted: 11/20/2023] [Indexed: 12/08/2023] Open
Abstract
The therapeutic efficacy of cisplatin and oxaliplatin depends on the balance between the DNA damage induction and the DNA damage response of tumor cells. Based on clinical evidence, oxaliplatin is administered to cisplatin-unresponsive cancers, but the underlying molecular causes for this tumor specificity are not clear. Hence, stratification of patients based on DNA repair profiling is not sufficiently utilized for treatment selection. Using a combination of genetic, transcriptomics and imaging approaches, we identified factors that promote global genome nucleotide excision repair (GG-NER) of DNA-platinum adducts induced by oxaliplatin, but not by cisplatin. We show that oxaliplatin-DNA lesions are a poor substrate for GG-NER initiating factor XPC and that DDB2 and HMGA2 are required for efficient binding of XPC to oxaliplatin lesions and subsequent GG-NER initiation. Loss of DDB2 and HMGA2 therefore leads to hypersensitivity to oxaliplatin but not to cisplatin. As a result, low DDB2 levels in different colon cancer cells are associated with GG-NER deficiency and oxaliplatin hypersensitivity. Finally, we show that colon cancer patients with low DDB2 levels have a better prognosis after oxaliplatin treatment than patients with high DDB2 expression. We therefore propose that DDB2 is a promising predictive marker of oxaliplatin treatment efficiency in colon cancer.
Collapse
Affiliation(s)
- Jana Slyskova
- Center for Cancer Research, Medical University of Vienna, A-1090 Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, A-1090 Vienna, Austria
| | - Alba Muniesa-Vargas
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Israel Tojal da Silva
- Laboratory of Bioinformatics and Computational Biology, A.C. Camargo Cancer Center, São Paulo 01508-010, Brazil
| | - Rodrigo Drummond
- Laboratory of Bioinformatics and Computational Biology, A.C. Camargo Cancer Center, São Paulo 01508-010, Brazil
| | - Jiyeong Park
- Center for Genomic Integrity, Institute for Basic Science, Ulsan 44919, Republic of Korea
| | - David Häckes
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Isabella Poetsch
- Center for Cancer Research, Medical University of Vienna, A-1090 Vienna, Austria
- Research Cluster “Translational Cancer Therapy Research”, A-1090 Vienna, Austria
| | - Cristina Ribeiro-Silva
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Amandine Moretton
- Center for Cancer Research, Medical University of Vienna, A-1090 Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, A-1090 Vienna, Austria
| | - Petra Heffeter
- Center for Cancer Research, Medical University of Vienna, A-1090 Vienna, Austria
- Research Cluster “Translational Cancer Therapy Research”, A-1090 Vienna, Austria
| | - Orlando D Schärer
- Center for Genomic Integrity, Institute for Basic Science, Ulsan 44919, Republic of Korea
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Wim Vermeulen
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Hannes Lans
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Joanna I Loizou
- Center for Cancer Research, Medical University of Vienna, A-1090 Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, A-1090 Vienna, Austria
| |
Collapse
|
3
|
Kramer AC, Carthage J, Berry Y, Gurdziel K, Cook TA, Thummel R. A comparative analysis of gene and protein expression in chronic and acute models of photoreceptor degeneration in adult zebrafish. Front Cell Dev Biol 2023; 11:1233269. [PMID: 37745292 PMCID: PMC10512720 DOI: 10.3389/fcell.2023.1233269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/22/2023] [Indexed: 09/26/2023] Open
Abstract
Background: Adult zebrafish are capable of photoreceptor (PR) regeneration following acute phototoxic lesion (AL). We developed a chronic low light (CLL) exposure model that more accurately reflects chronic PR degeneration observed in many human retinal diseases. Methods: Here, we characterize the morphological and transcriptomic changes associated with acute and chronic models of PR degeneration at 8 time-points over a 28-day window using immunohistochemistry and 3'mRNA-seq. Results: We first observed a differential sensitivity of rod and cone PRs to CLL. Next, we found no evidence for Müller glia (MG) gliosis or regenerative cell-cycle re-entry in the CLL model, which is in contrast to the robust gliosis and proliferative response from resident MG in the AL model. Differential responses of microglia between the models was also observed. Transcriptomic comparisons between the models revealed gene-specific networks of PR regeneration and degeneration, including genes that are activated under conditions of chronic PR stress. Finally, we showed that CLL is at least partially reversible, allowing for rod and cone outer segment outgrowth and replacement of rod cell nuclei via an apparent upregulation of the existing rod neurogenesis mechanism. Discussion: Collectively, these data provide a direct comparison of the morphological and transcriptomic PR degeneration and regeneration models in zebrafish.
Collapse
Affiliation(s)
- Ashley C. Kramer
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, MI, United States
| | - Justin Carthage
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, MI, United States
| | - Yasmeen Berry
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, MI, United States
| | - Katherine Gurdziel
- Genomic Sciences Core, Wayne State University, Detroit, MI, United States
| | - Tiffany A. Cook
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, MI, United States
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, United States
| | - Ryan Thummel
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, Detroit, MI, United States
| |
Collapse
|
4
|
Hameed J S F, Devarajan A, M S DP, Bhattacharyya A, Shirude MB, Dutta D, Karmakar P, Mukherjee A. PTEN-negative endometrial cancer cells protect their genome through enhanced DDB2 expression associated with augmented nucleotide excision repair. BMC Cancer 2023; 23:399. [PMID: 37142958 PMCID: PMC10157935 DOI: 10.1186/s12885-023-10892-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 04/26/2023] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND Endometrial cancer (EC) arises from uterine endometrium tissue and is the most prevalent cancer of the female reproductive tract in developed countries. It has been predicted that the global prevalence of EC will increase in part because of its positive association with economic growth and lifestyle. The majority of EC presented with endometrioid histology and mutations in the tumor suppressor gene PTEN, resulting in its loss of function. PTEN negatively regulates the PI3K/Akt/mTOR axis of cell proliferation and thus serves as a tumorigenesis gatekeeper. Through its chromatin functions, PTEN is also implicated in genome maintenance procedures. However, our comprehension of how DNA repair occurs in the absence of PTEN function in EC is inadequate. METHODS We utilized The Cancer Genome Atlas (TCGA) data analysis to establish a correlation between PTEN and DNA damage response genes in EC, followed by a series of cellular and biochemical assays to elucidate a molecular mechanism utilizing the AN3CA cell line model for EC. RESULTS The TCGA analyses demonstrated an inverse correlation between the expression of the damage sensor protein of nucleotide excision repair (NER), DDB2, and PTEN in EC. The transcriptional activation of DDB2 is mediated by the recruitment of active RNA polymerase II to the DDB2 promoter in the PTEN-null EC cells, revealing a correlation between increased DDB2 expression and augmented NER activity in the absence of PTEN. CONCLUSION Our study indicated a causal relationship between NER and EC that may be exploited in disease management.
Collapse
Affiliation(s)
- Fathima Hameed J S
- Rajiv Gandhi Centre for Biotechnology, Cancer Research Program, Thycaud, Poojappura, Thiruvananthapuram, Kerala, 695014, India
- Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Anjali Devarajan
- Rajiv Gandhi Centre for Biotechnology, Cancer Research Program, Thycaud, Poojappura, Thiruvananthapuram, Kerala, 695014, India
| | - Devu Priya M S
- Rajiv Gandhi Centre for Biotechnology, Cancer Research Program, Thycaud, Poojappura, Thiruvananthapuram, Kerala, 695014, India
| | - Ahel Bhattacharyya
- Rajiv Gandhi Centre for Biotechnology, Cancer Research Program, Thycaud, Poojappura, Thiruvananthapuram, Kerala, 695014, India
| | - Mayur Balkrishna Shirude
- Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
- Rajiv Gandhi Centre for Biotechnology, Regenerative Biology Program, Thycaud, Poojappura, Thiruvananthapuram, Kerala, 695014, India
| | - Debasree Dutta
- Rajiv Gandhi Centre for Biotechnology, Regenerative Biology Program, Thycaud, Poojappura, Thiruvananthapuram, Kerala, 695014, India
| | - Parimal Karmakar
- Department of Life Science and Biotechnology, Jadavpur University, 188, Raja S.C. Mullick Road, Kolkata, West Bengal, 700 032, India
| | - Ananda Mukherjee
- Rajiv Gandhi Centre for Biotechnology, Cancer Research Program, Thycaud, Poojappura, Thiruvananthapuram, Kerala, 695014, India.
| |
Collapse
|
5
|
Kumari S, Sharma S, Advani D, Khosla A, Kumar P, Ambasta RK. Unboxing the molecular modalities of mutagens in cancer. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:62111-62159. [PMID: 34611806 PMCID: PMC8492102 DOI: 10.1007/s11356-021-16726-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 09/22/2021] [Indexed: 04/16/2023]
Abstract
The etiology of the majority of human cancers is associated with a myriad of environmental causes, including physical, chemical, and biological factors. DNA damage induced by such mutagens is the initial step in the process of carcinogenesis resulting in the accumulation of mutations. Mutational events are considered the major triggers for introducing genetic and epigenetic insults such as DNA crosslinks, single- and double-strand DNA breaks, formation of DNA adducts, mismatched bases, modification in histones, DNA methylation, and microRNA alterations. However, DNA repair mechanisms are devoted to protect the DNA to ensure genetic stability, any aberrations in these calibrated mechanisms provoke cancer occurrence. Comprehensive knowledge of the type of mutagens and carcinogens and the influence of these agents in DNA damage and cancer induction is crucial to develop rational anticancer strategies. This review delineated the molecular mechanism of DNA damage and the repair pathways to provide a deep understanding of the molecular basis of mutagenicity and carcinogenicity. A relationship between DNA adduct formation and cancer incidence has also been summarized. The mechanistic basis of inflammatory response and oxidative damage triggered by mutagens in tumorigenesis has also been highlighted. We elucidated the interesting interplay between DNA damage response and immune system mechanisms. We addressed the current understanding of DNA repair targeted therapies and DNA damaging chemotherapeutic agents for cancer treatment and discussed how antiviral agents, anti-inflammatory drugs, and immunotherapeutic agents combined with traditional approaches lay the foundations for future cancer therapies.
Collapse
Affiliation(s)
- Smita Kumari
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Bawana Road, Delhi, 110042, India
| | - Sudhanshu Sharma
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Bawana Road, Delhi, 110042, India
| | - Dia Advani
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Bawana Road, Delhi, 110042, India
| | - Akanksha Khosla
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Bawana Road, Delhi, 110042, India
| | - Pravir Kumar
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Bawana Road, Delhi, 110042, India
| | - Rashmi K Ambasta
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Bawana Road, Delhi, 110042, India.
| |
Collapse
|
6
|
Hao R, Yu P, Gui L, Wang N, Pan D, Wang S. Relationship between Serum Levels of Selenium and Thyroid Cancer: A Systematic Review and Meta-Analysis. Nutr Cancer 2022; 75:14-23. [PMID: 35996814 DOI: 10.1080/01635581.2022.2115082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Thyroid cancer is one of the most malignant tumors and a serious threat to human health. Selenium (Se) is an essential trace element that is critical for thyroid function. Since the relationship between Se and thyroid cancer remains unclear, a meta-analysis was performed to clarify the relationship. A total of five databases (PubMed, Web of Science, Scopus, Embase and Cochrane library) were searched for case-control studies and cohort studies on serum levels of Se and thyroid cancer published up to 13 July 2022. Seven articles consisting of 10 case-control studies and comprised of 2,205 subjects met the inclusion criteria for meta-analysis. From the 10 selected studies, pooled analysis indicated that thyroid cancer patients had lower serum levels of Se than healthy controls [standardized mean difference = -1.25, 95% confidence interval = (-2.07, -0.44), P = 0.003]. Our meta-analysis supports a significant relationship between serum levels of Se and thyroid cancer.
Collapse
Affiliation(s)
- Runhua Hao
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, P.R. China
| | - Ping Yu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, P.R. China
| | - Lanlan Gui
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, P.R. China
| | - Niannian Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, P.R. China
| | - Da Pan
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, P.R. China
| | - Shaokang Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, P.R. China
| |
Collapse
|
7
|
Thomas AF, Kelly GL, Strasser A. Of the many cellular responses activated by TP53, which ones are critical for tumour suppression? Cell Death Differ 2022; 29:961-971. [PMID: 35396345 PMCID: PMC9090748 DOI: 10.1038/s41418-022-00996-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 12/12/2022] Open
Abstract
The tumour suppressor TP53 is a master regulator of several cellular processes that collectively suppress tumorigenesis. The TP53 gene is mutated in ~50% of human cancers and these defects usually confer poor responses to therapy. The TP53 protein functions as a homo-tetrameric transcription factor, directly regulating the expression of ~500 target genes, some of them involved in cell death, cell cycling, cell senescence, DNA repair and metabolism. Originally, it was thought that the induction of apoptotic cell death was the principal mechanism by which TP53 prevents the development of tumours. However, gene targeted mice lacking the critical effectors of TP53-induced apoptosis (PUMA and NOXA) do not spontaneously develop tumours. Indeed, even mice lacking the critical mediators for TP53-induced apoptosis, G1/S cell cycle arrest and cell senescence, namely PUMA, NOXA and p21, do not spontaneously develop tumours. This suggests that TP53 must activate additional cellular responses to mediate tumour suppression. In this review, we will discuss the processes by which TP53 regulates cell death, cell cycling/cell senescence, DNA damage repair and metabolic adaptation, and place this in context of current understanding of TP53-mediated tumour suppression.
Collapse
Affiliation(s)
- Annabella F Thomas
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.,The Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia
| | - Gemma L Kelly
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.,The Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia
| | - Andreas Strasser
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia. .,The Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia.
| |
Collapse
|
8
|
Wang Z, Strasser A, Kelly GL. Should mutant TP53 be targeted for cancer therapy? Cell Death Differ 2022; 29:911-920. [PMID: 35332311 PMCID: PMC9091235 DOI: 10.1038/s41418-022-00962-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 12/14/2022] Open
Abstract
Mutations in the TP53 tumour suppressor gene are found in ~50% of human cancers [1-6]. TP53 functions as a transcription factor that directly regulates the expression of ~500 genes, some of them involved in cell cycle arrest/cell senescence, apoptotic cell death or DNA damage repair, i.e. the cellular responses that together prevent tumorigenesis [1-6]. Defects in TP53 function not only cause tumour development but also impair the response of malignant cells to anti-cancer drugs, particularly those that induce DNA damage [1-6]. Most mutations in TP53 in human cancers cause a single amino acid substitution, usually within the DNA binding domain of the TP53 protein. These mutant TP53 proteins are often expressed at high levels in the malignant cells. Three cancer causing attributes have been postulated for mutant TP53 proteins: the inability to activate target genes controlled by wt TP53 (loss-of-function, LOF) that are critical for tumour suppression, dominant negative effects (DNE), i.e. blocking the function of wt TP53 in cells during early stages of transformation when mutant and wt TP53 proteins are co-expressed, and gain-of-function (GOF) effects whereby mutant TP53 impacts diverse cellular pathways by interacting with proteins that are not normally engaged by wt TP53 [1-6]. The GOF effects of mutant TP53 were reported to be essential for the sustained proliferation and survival of malignant cells and it was therefore proposed that agents that can remove mutant TP53 protein would have substantial therapeutic impact [7-9]. In this review article we discuss evidence for and against the value of targeting mutant TP53 protein for cancer therapy.
Collapse
Affiliation(s)
- Zilu Wang
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.,Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
| | - Andreas Strasser
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia. .,Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia.
| | - Gemma L Kelly
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia. .,Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia.
| |
Collapse
|
9
|
Kusakabe M, Kakumu E, Kurihara F, Tsuchida K, Maeda T, Tada H, Kusao K, Kato A, Yasuda T, Matsuda T, Nakao M, Yokoi M, Sakai W, Sugasawa K. Histone deacetylation regulates nucleotide excision repair through an interaction with the XPC protein. iScience 2022; 25:104040. [PMID: 35330687 PMCID: PMC8938288 DOI: 10.1016/j.isci.2022.104040] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 02/07/2022] [Accepted: 03/04/2022] [Indexed: 12/05/2022] Open
Abstract
The XPC protein complex plays a central role in DNA lesion recognition for global genome nucleotide excision repair (GG-NER). Lesion recognition can be accomplished in either a UV-DDB-dependent or -independent manner; however, it is unclear how these sub-pathways are regulated in chromatin. Here, we show that histone deacetylases 1 and 2 facilitate UV-DDB-independent recruitment of XPC to DNA damage by inducing histone deacetylation. XPC localizes to hypoacetylated chromatin domains in a DNA damage-independent manner, mediated by its structurally disordered middle (M) region. The M region interacts directly with the N-terminal tail of histone H3, an interaction compromised by H3 acetylation. Although the M region is dispensable for in vitro NER, it promotes DNA damage removal by GG-NER in vivo, particularly in the absence of UV-DDB. We propose that histone deacetylation around DNA damage facilitates the recruitment of XPC through the M region, contributing to efficient lesion recognition and initiation of GG-NER. Histone deacetylation by HDAC1/2 promotes the DNA lesion recognition by XPC The HDAC1/2 activators, MTA proteins, also promote the recruitment of XPC XPC tends to localize in hypoacetylated chromatin independently of DNA damage Disordered middle region of XPC interacts with histone H3 tail and promotes GG-NER
Collapse
|
10
|
Volatier T, Schumacher B, Cursiefen C, Notara M. UV Protection in the Cornea: Failure and Rescue. BIOLOGY 2022; 11:biology11020278. [PMID: 35205145 PMCID: PMC8868636 DOI: 10.3390/biology11020278] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/28/2022] [Accepted: 01/28/2022] [Indexed: 01/07/2023]
Abstract
Simple Summary The sun is a deadly laser, and its damaging rays harm exposed tissues such as our skin and eyes. The skin’s protection and repair mechanisms are well understood and utilized in therapeutic approaches while the eye lacks such complete understanding of its defenses and therefore often lacks therapeutic support in most cases. The aim here was to document the similarities and differences between the two tissues as well as understand where current research stands on ocular, particularly corneal, ultraviolet protection. The objective is to identify what mechanisms may be best suited for future investigation and valuable therapeutic approaches. Abstract Ultraviolet (UV) irradiation induces DNA lesions in all directly exposed tissues. In the human body, two tissues are chronically exposed to UV: the skin and the cornea. The most frequent UV-induced DNA lesions are cyclobutane pyrimidine dimers (CPDs) that can lead to apoptosis or induce tumorigenesis. Lacking the protective pigmentation of the skin, the transparent cornea is particularly dependent on nucleotide excision repair (NER) to remove UV-induced DNA lesions. The DNA damage response also triggers intracellular autophagy mechanisms to remove damaged material in the cornea; these mechanisms are poorly understood despite their noted involvement in UV-related diseases. Therapeutic solutions involving xenogenic DNA-repair enzymes such as T4 endonuclease V or photolyases exist and are widely distributed for dermatological use. The corneal field lacks a similar set of tools to address DNA-lesions in photovulnerable patients, such as those with genetic disorders or recently transplanted tissue.
Collapse
Affiliation(s)
- Thomas Volatier
- Department of Ophthalmology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 62, 50937 Cologne, Germany; (C.C.); (M.N.)
- Correspondence:
| | - Björn Schumacher
- Cologne Excellence Cluster for Cellular Stress Responses, Aging-Associated Diseases (CECAD) and Center for Molecular Medicine (CMMC), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany;
| | - Claus Cursiefen
- Department of Ophthalmology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 62, 50937 Cologne, Germany; (C.C.); (M.N.)
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, 21, 50931 Cologne, Germany
| | - Maria Notara
- Department of Ophthalmology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 62, 50937 Cologne, Germany; (C.C.); (M.N.)
- Cologne Excellence Cluster for Cellular Stress Responses, Aging-Associated Diseases (CECAD) and Center for Molecular Medicine (CMMC), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany;
| |
Collapse
|
11
|
Zebian A, El-Dor M, Shaito A, Mazurier F, Rezvani HR, Zibara K. XPC multifaceted roles beyond DNA damage repair: p53-dependent and p53-independent functions of XPC in cell fate decisions. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2022; 789:108400. [PMID: 35690409 DOI: 10.1016/j.mrrev.2021.108400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 11/19/2021] [Accepted: 11/19/2021] [Indexed: 06/15/2023]
Abstract
Xeroderma pigmentosum group C protein (XPC) acts as a DNA damage recognition factor for bulky adducts and as an initiator of global genome nucleotide excision repair (GG-NER). Novel insights have shown that the role of XPC is not limited to NER, but is also implicated in DNA damage response (DDR), as well as in cell fate decisions upon stress. Moreover, XPC has a proteolytic role through its interaction with p53 and casp-2S. XPC is also able to determine cellular outcomes through its interaction with downstream proteins, such as p21, ARF, and p16. XPC interactions with effector proteins may drive cells to various fates such as apoptosis, senescence, or tumorigenesis. In this review, we explore XPC's involvement in different molecular pathways in the cell and suggest that XPC can be considered not only as a genomic caretaker and gatekeeper but also as a tumor suppressor and cellular-fate decision maker. These findings envisage that resistance to cell death, induced by DNA-damaging therapeutics, in highly prevalent P53-deficent tumors might be overcome through new therapeutic approaches that aim to activate XPC in these tumors. Moreover, this review encourages care providers to consider XPC status in cancer patients before chemotherapy in order to improve the chances of successful treatment and enhance patients' survival.
Collapse
Affiliation(s)
- Abir Zebian
- University of Bordeaux, INSERM U1035, BMGIC, Bordeaux, France; PRASE, Lebanese University, Beirut, Lebanon
| | | | - Abdullah Shaito
- Biomedical Research Center, Qatar University, P.O. Box 2713, Doha, Qatar
| | | | | | - Kazem Zibara
- PRASE, Lebanese University, Beirut, Lebanon; Biology Department, Faculty of Sciences - I, Lebanese University, Beirut, Lebanon.
| |
Collapse
|
12
|
Chauhan AK, Sun Y, Zhu Q, Wani AA. Timely upstream events regulating nucleotide excision repair by ubiquitin-proteasome system: ubiquitin guides the way. DNA Repair (Amst) 2021; 103:103128. [PMID: 33991872 DOI: 10.1016/j.dnarep.2021.103128] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/15/2021] [Accepted: 05/04/2021] [Indexed: 12/11/2022]
Abstract
The ubiquitin-proteasome system (UPS) plays crucial roles in regulation of multiple DNA repair pathways, including nucleotide excision repair (NER), which eliminates a broad variety of helix-distorting DNA lesions that can otherwise cause deleterious mutations and genomic instability. In mammalian NER, DNA damage sensors, DDB and XPC acting in global genomic NER (GG-NER), and, CSB and RNAPII acting in transcription-coupled NER (TC-NER) sub-pathways, undergo an array of post-translational ubiquitination at the DNA lesion sites. Accumulating evidence indicates that ubiquitination orchestrates the productive assembly of NER preincision complex by driving well-timed compositional changes in DNA damage-assembled sensor complexes. Conversely, the deubiquitination is also intimately involved in regulating the damage sensing aftermath, via removal of degradative ubiquitin modification on XPC and CSB to prevent their proteolysis for the factor recycling. This review summaries the relevant research efforts and latest findings in our understanding of ubiquitin-mediated regulation of NER and active participation by new regulators of NER, e.g., Cullin-Ring ubiquitin ligases (CRLs), ubiquitin-specific proteases (USPs) and ubiquitin-dependent segregase, valosin-containing protein (VCP)/p97. We project hypothetical step-by-step models in which VCP/p97-mediated timely extraction of damage sensors is integral to overall productive NER. The USPs and proteasome subtly counteract in fine-tuning the vital stability and function of NER damage sensors.
Collapse
Affiliation(s)
- Anil K Chauhan
- Department of Radiology, The Ohio State University, Columbus, OH, 43210, United States
| | - Yingming Sun
- Department of Radiology, The Ohio State University, Columbus, OH, 43210, United States
| | - Qianzheng Zhu
- Department of Radiology, The Ohio State University, Columbus, OH, 43210, United States.
| | - Altaf A Wani
- Department of Radiology, The Ohio State University, Columbus, OH, 43210, United States; Department of Molecular and Cellular Biochemistry, The Ohio State University, Columbus, OH, 43210, United States; James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, 43210, United States.
| |
Collapse
|
13
|
Regulation of ddb2 expression in blind cavefish and zebrafish reveals plasticity in the control of sunlight-induced DNA damage repair. PLoS Genet 2021; 17:e1009356. [PMID: 33544716 PMCID: PMC7891740 DOI: 10.1371/journal.pgen.1009356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 02/18/2021] [Accepted: 01/12/2021] [Indexed: 11/19/2022] Open
Abstract
We have gained considerable insight into the mechanisms which recognize and repair DNA damage, but how they adapt to extreme environmental challenges remains poorly understood. Cavefish have proven to be fascinating models for exploring the evolution of DNA repair in the complete absence of UV-induced DNA damage and light. We have previously revealed that the Somalian cavefish Phreatichthys andruzzii, lacks photoreactivation repair via the loss of light, UV and ROS-induced photolyase gene transcription mediated by D-box enhancer elements. Here, we explore whether other systems repairing UV-induced DNA damage have been similarly affected in this cavefish model. By performing a comparative study using P. andruzzii and the surface-dwelling zebrafish, we provide evidence for a conservation of sunlight-regulated Nucleotide Excision Repair (NER). Specifically, the expression of the ddb2 gene which encodes a key NER recognition factor is robustly induced following exposure to light, UV and oxidative stress in both species. As in the case of the photolyase genes, D-boxes in the ddb2 promoter are sufficient to induce transcription in zebrafish. Interestingly, despite the loss of D-box-regulated photolyase gene expression in P. andruzzii, the D-box is required for ddb2 induction by visible light and oxidative stress in cavefish. However, in the cavefish ddb2 gene this D-box-mediated induction requires cooperation with an adjacent, highly conserved E2F element. Furthermore, while in zebrafish UV-induced ddb2 expression results from transcriptional activation accompanied by stabilization of the ddb2 mRNA, in P. andruzzii UV induces ddb2 expression exclusively via an increase in mRNA stability. Thus, we reveal plasticity in the transcriptional and post transcriptional mechanisms regulating the repair of sunlight-induced DNA damage under long-term environmental challenges.
Collapse
|
14
|
Rizza ERH, DiGiovanna JJ, Khan SG, Tamura D, Jeskey JD, Kraemer KH. Xeroderma Pigmentosum: A Model for Human Premature Aging. J Invest Dermatol 2021; 141:976-984. [PMID: 33436302 DOI: 10.1016/j.jid.2020.11.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/14/2020] [Accepted: 11/16/2020] [Indexed: 12/19/2022]
Abstract
Aging results from intrinsic changes (chronologic) and damage from external exposures (extrinsic) on the human body. The skin is ideal to visually differentiate their unique features. Inherited diseases of DNA repair, such as xeroderma pigmentosum (XP), provide an excellent model for human aging due to the accelerated accumulation of DNA damage. Poikiloderma, atypical lentigines, and skin cancers, the primary cutaneous features of XP, occur in the general population but at a much older age. Patients with XP also exhibit ocular changes secondary to premature photoaging, including ocular surface tumors and pterygium. Internal manifestations of premature aging, including peripheral neuropathy, progressive sensorineural hearing loss, and neurodegeneration, are reported in 25% of patients with XP. Internal malignancies, such as lung cancer, CNS tumors, and leukemia and/or lymphoma, occur at a younger age in patients with XP, as do thyroid nodules. Premature ovarian failure is overrepresented among females with XP, occurring 20 years earlier than in the general population. Taken together, these clinical findings highlight the importance of DNA repair in maintaining genomic integrity. XP is a unique model of human premature aging, which is revealing new insights into aging mechanisms.
Collapse
Affiliation(s)
- Elizabeth R H Rizza
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - John J DiGiovanna
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Sikandar G Khan
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Deborah Tamura
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jack D Jeskey
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA; Medical Research Scholar Program, National Institutes of Health, Bethesda, Maryland, USA
| | - Kenneth H Kraemer
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA.
| |
Collapse
|
15
|
The Dark Side of UV-Induced DNA Lesion Repair. Genes (Basel) 2020; 11:genes11121450. [PMID: 33276692 PMCID: PMC7761550 DOI: 10.3390/genes11121450] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/27/2020] [Accepted: 11/29/2020] [Indexed: 12/12/2022] Open
Abstract
In their life cycle, plants are exposed to various unfavorable environmental factors including ultraviolet (UV) radiation emitted by the Sun. UV-A and UV-B, which are partially absorbed by the ozone layer, reach the surface of the Earth causing harmful effects among the others on plant genetic material. The energy of UV light is sufficient to induce mutations in DNA. Some examples of DNA damage induced by UV are pyrimidine dimers, oxidized nucleotides as well as single and double-strand breaks. When exposed to light, plants can repair major UV-induced DNA lesions, i.e., pyrimidine dimers using photoreactivation. However, this highly efficient light-dependent DNA repair system is ineffective in dim light or at night. Moreover, it is helpless when it comes to the repair of DNA lesions other than pyrimidine dimers. In this review, we have focused on how plants cope with deleterious DNA damage that cannot be repaired by photoreactivation. The current understanding of light-independent mechanisms, classified as dark DNA repair, indispensable for the maintenance of plant genetic material integrity has been presented.
Collapse
|
16
|
Functional impacts of the ubiquitin-proteasome system on DNA damage recognition in global genome nucleotide excision repair. Sci Rep 2020; 10:19704. [PMID: 33184426 PMCID: PMC7665181 DOI: 10.1038/s41598-020-76898-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 11/04/2020] [Indexed: 12/13/2022] Open
Abstract
The ubiquitin-proteasome system (UPS) plays crucial roles in regulation of various biological processes, including DNA repair. In mammalian global genome nucleotide excision repair (GG-NER), activation of the DDB2-associated ubiquitin ligase upon UV-induced DNA damage is necessary for efficient recognition of lesions. To date, however, the precise roles of UPS in GG-NER remain incompletely understood. Here, we show that the proteasome subunit PSMD14 and the UPS shuttle factor RAD23B can be recruited to sites with UV-induced photolesions even in the absence of XPC, suggesting that proteolysis occurs at DNA damage sites. Unexpectedly, sustained inhibition of proteasome activity results in aggregation of PSMD14 (presumably with other proteasome components) at the periphery of nucleoli, by which DDB2 is immobilized and sequestered from its lesion recognition functions. Although depletion of PSMD14 alleviates such DDB2 immobilization induced by proteasome inhibitors, recruitment of DDB2 to DNA damage sites is then severely compromised in the absence of PSMD14. Because all of these proteasome dysfunctions selectively impair removal of cyclobutane pyrimidine dimers, but not (6-4) photoproducts, our results indicate that the functional integrity of the proteasome is essential for the DDB2-mediated lesion recognition sub-pathway, but not for GG-NER initiated through direct lesion recognition by XPC.
Collapse
|
17
|
Philipp J, Le Gleut R, von Toerne C, Subedi P, Azimzadeh O, Atkinson MJ, Tapio S. Radiation Response of Human Cardiac Endothelial Cells Reveals a Central Role of the cGAS-STING Pathway in the Development of Inflammation. Proteomes 2020; 8:proteomes8040030. [PMID: 33114474 PMCID: PMC7709117 DOI: 10.3390/proteomes8040030] [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: 09/02/2020] [Revised: 10/06/2020] [Accepted: 10/19/2020] [Indexed: 12/13/2022] Open
Abstract
Radiation-induced inflammation leading to the permeability of the endothelial barrier may increase the risk of cardiovascular disease. The aim of this study was to investigate potential mechanisms in vitro at the level of the proteome in human coronary artery endothelial cells (HCECest2) that were exposed to radiation doses of 0, 0.25, 0.5, 2.0 and 10 Gy (60Co-γ). Proteomics analysis was performed using mass spectrometry in a label-free data-independent acquisition mode. The data were validated using bioinformatics and immunoblotting. The low- and moderate-dose-irradiated samples (0.25 Gy, 0.5 Gy) showed only scarce proteome changes. In contrast, an activation of DNA-damage repair, inflammation, and oxidative stress pathways was seen after the high-dose treatments (2 and 10 Gy). The level of the DNA damage response protein DDB2 was enhanced early at the 10 Gy dose. The expression of proteins belonging to the inflammatory response or cGAS-STING pathway (STING, STAT1, ICAM1, ISG15) increased in a dose-dependent manner, showing the strongest effects at 10 Gy after one week. This study suggests a connection between the radiation-induced DNA damage and the induction of inflammation which supports the inhibition of the cGAS-STING pathway in the prevention of radiation-induced cardiovascular disease.
Collapse
Affiliation(s)
- Jos Philipp
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health GmbH, 85764 Neuherberg, Germany; (J.P.); (P.S.); (O.A.); (M.J.A.)
| | - Ronan Le Gleut
- Institute of Computational Biology, Helmholtz Center Munich, German Research Center for Environmental Health GmbH, 85764 Neuherberg, Germany;
| | - Christine von Toerne
- Research Unit Protein Science, Helmholtz Center Munich, German Research Center for Environmental Health GmbH, 85764 Neuherberg, Germany;
| | - Prabal Subedi
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health GmbH, 85764 Neuherberg, Germany; (J.P.); (P.S.); (O.A.); (M.J.A.)
- Federal Office for Radiation Protection, BfS, 85764 Neuherberg, Germany
| | - Omid Azimzadeh
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health GmbH, 85764 Neuherberg, Germany; (J.P.); (P.S.); (O.A.); (M.J.A.)
| | - Michael J. Atkinson
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health GmbH, 85764 Neuherberg, Germany; (J.P.); (P.S.); (O.A.); (M.J.A.)
- Chair of Radiation Biology, Technical University of Munich, 80333 Munich, Germany
| | - Soile Tapio
- Institute of Radiation Biology, Helmholtz Center Munich, German Research Center for Environmental Health GmbH, 85764 Neuherberg, Germany; (J.P.); (P.S.); (O.A.); (M.J.A.)
- Correspondence: ; Tel.: +49-89-3187-3445
| |
Collapse
|
18
|
Wang YC, Huang JL, Lee KW, Lu HH, Lin YJ, Chen LF, Wang CS, Cheng YC, Zeng ZT, Chu PY, Lin CS. Downregulation of the DNA Repair Gene DDB2 by Arecoline Is through p53's DNA-Binding Domain and Is Correlated with Poor Outcome of Head and Neck Cancer Patients with Betel Quid Consumption. Cancers (Basel) 2020; 12:cancers12082053. [PMID: 32722430 PMCID: PMC7465463 DOI: 10.3390/cancers12082053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/18/2020] [Accepted: 07/22/2020] [Indexed: 12/19/2022] Open
Abstract
Arecoline is the principal alkaloid in the areca nut, a component of betel quids (BQs), which are carcinogenic to humans. Epidemiological studies indicate that BQ-chewing contributes to the occurrence of head and neck cancer (HNC). Previously, we have reported that arecoline (0.3 mM) is able to inhibit DNA repair in a p53-dependent pathway, but the underlying mechanism is unclear. Here we demonstrated that arecoline suppressed the expression of DDB2, which is transcriptionally regulated by p53 and is required for nucleotide excision repair (NER). Ectopic expression of DDB2 restored NER activity in arecoline-treated cells, suggesting that DDB2 downregulation was critical for arecoline-mediated NER inhibition. Mechanistically, arecoline inhibited p53-induced DDB2 promoter activity through the DNA-binding but not the transactivation domain of p53. Both NER and DDB2 promoter activities declined in the chronic arecoline-exposed cells, which were consistent with the downregulated DDB2 mRNA in BQ-associated HNC specimens, but not in those of The Cancer Genome Atlas (TCGA) cohort (no BQ exposure). Lower DDB2 mRNA expression was correlated with a poor outcome in HNC patients. These data uncover one of mechanisms underlying arecoline-mediated carcinogenicity through inhibiting p53-regulated DDB2 expression and DNA repair.
Collapse
Affiliation(s)
- Yu-Chu Wang
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-C.W.); (H.-H.L.); (Y.-J.L.); (L.-F.C.); (C.-S.W.)
| | - Jau-Ling Huang
- Department of Bioscience Technology, College of Health Science, Chang Jung Christian University, Tainan 711, Taiwan; (J.-L.H.); (Y.-C.C.); (Z.-T.Z.)
| | - Ka-Wo Lee
- Department of Otorhinolaryngology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 801, Taiwan;
| | - Hsing-Han Lu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-C.W.); (H.-H.L.); (Y.-J.L.); (L.-F.C.); (C.-S.W.)
- Department of Bioscience Technology, College of Health Science, Chang Jung Christian University, Tainan 711, Taiwan; (J.-L.H.); (Y.-C.C.); (Z.-T.Z.)
| | - Yuan-Jen Lin
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-C.W.); (H.-H.L.); (Y.-J.L.); (L.-F.C.); (C.-S.W.)
| | - Long-Fong Chen
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-C.W.); (H.-H.L.); (Y.-J.L.); (L.-F.C.); (C.-S.W.)
- Department of Pathology and Medical Research, Show Chwan Memorial Hospital, Changhua 500, Taiwan;
| | - Chung-Sheng Wang
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-C.W.); (H.-H.L.); (Y.-J.L.); (L.-F.C.); (C.-S.W.)
| | - Yun-Chiao Cheng
- Department of Bioscience Technology, College of Health Science, Chang Jung Christian University, Tainan 711, Taiwan; (J.-L.H.); (Y.-C.C.); (Z.-T.Z.)
| | - Zih-Ting Zeng
- Department of Bioscience Technology, College of Health Science, Chang Jung Christian University, Tainan 711, Taiwan; (J.-L.H.); (Y.-C.C.); (Z.-T.Z.)
| | - Pei-Yi Chu
- Department of Pathology and Medical Research, Show Chwan Memorial Hospital, Changhua 500, Taiwan;
| | - Chang-Shen Lin
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-C.W.); (H.-H.L.); (Y.-J.L.); (L.-F.C.); (C.-S.W.)
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Correspondence: or
| |
Collapse
|
19
|
Alkawar AMM, Castellanos AJ, Carpenter MA, Hutcherson RJ, Madkhali MAO, Johnson RM, Bottomley M, Kemp MG. Insulin-like Growth Factor-1 Impacts p53 Target Gene Induction in UVB-irradiated Keratinocytes and Human Skin. Photochem Photobiol 2020; 96:1332-1341. [PMID: 32416609 DOI: 10.1111/php.13279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 05/05/2020] [Indexed: 12/19/2022]
Abstract
The tumor suppressor protein p53 limits mutagenesis in response to ultraviolet-B (UVB) light exposure by activating the transcription of genes that mitigate the damaging effects of UVB radiation on DNA. Because most nonmelanoma skin cancers (NMSCs) occur in older individuals, it is important to understand the process of mutagenesis in the geriatric skin microenvironment. Based on previous studies demonstrating that geriatric skin expresses lower levels of the growth factor insulin-like growth factor-1 (IGF-1) than young adult skin, a role for IGF-1 in the regulation of p53 target genes was investigated in both human keratinocytes in vitro and human skin explants ex vivo. The products of the p53 target genes p21 and DNA polymerase eta (pol η) were found to be increased by UVB exposure in both experimental systems, and this induction was observed to be partially abrogated by depriving keratinocytes of IGF-1 in vitro or by the treatment of keratinocytes in vitro and human skin explants with an IGF-1 receptor antagonist. Because p21 and pol η function to limit mutagenic DNA replication following UVB exposure, these results suggest that NMSC risk in geriatric populations may be due to age-dependent decreases in IGF-1 signaling that disrupt p53 function in the skin.
Collapse
Affiliation(s)
- Abdulrahman M M Alkawar
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH
| | - Amber J Castellanos
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH
| | - Mae Alexandra Carpenter
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH
| | - Rebekah J Hutcherson
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH
| | - Mariyyah A O Madkhali
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH
| | - Ron Michael Johnson
- Department of Surgery, Boonshoft School of Medicine, Wright State University, Dayton, OH
| | | | - Michael G Kemp
- Departments of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH
| |
Collapse
|
20
|
Beecher M, Kumar N, Jang S, Rapić-Otrin V, Van Houten B. Expanding molecular roles of UV-DDB: Shining light on genome stability and cancer. DNA Repair (Amst) 2020; 94:102860. [PMID: 32739133 DOI: 10.1016/j.dnarep.2020.102860] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/07/2020] [Accepted: 04/09/2020] [Indexed: 01/13/2023]
Abstract
UV-damaged DNA binding protein (UV-DDB) is a heterodimeric complex, composed of DDB1 and DDB2, and is involved in global genome nucleotide excision repair. Mutations in DDB2 are associated with xeroderma pigmentosum complementation group E. UV-DDB forms a ubiquitin E3 ligase complex with cullin-4A and RBX that helps to relax chromatin around UV-induced photoproducts through the ubiquitination of histone H2A. After providing a brief historical perspective on UV-DDB, we review our current knowledge of the structure and function of this intriguing repair protein. Finally, this article discusses emerging data suggesting that UV-DDB may have other non-canonical roles in base excision repair and the etiology of cancer.
Collapse
Affiliation(s)
- Maria Beecher
- Molecular Pharmacology Graduate Program, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA; UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Namrata Kumar
- Molecular Genetics and Developmental Biology Graduate Program, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA; UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Sunbok Jang
- Department of Pharmacology and Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA; UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Vesna Rapić-Otrin
- Department of Microbiology and Molecular Genetics, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Bennett Van Houten
- Molecular Pharmacology Graduate Program, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA; Molecular Genetics and Developmental Biology Graduate Program, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Pharmacology and Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA; UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15213, USA.
| |
Collapse
|
21
|
Gsell C, Richly H, Coin F, Naegeli H. A chromatin scaffold for DNA damage recognition: how histone methyltransferases prime nucleosomes for repair of ultraviolet light-induced lesions. Nucleic Acids Res 2020; 48:1652-1668. [PMID: 31930303 PMCID: PMC7038933 DOI: 10.1093/nar/gkz1229] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/18/2019] [Accepted: 12/23/2019] [Indexed: 02/07/2023] Open
Abstract
The excision of mutagenic DNA adducts by the nucleotide excision repair (NER) pathway is essential for genome stability, which is key to avoiding genetic diseases, premature aging, cancer and neurologic disorders. Due to the need to process an extraordinarily high damage density embedded in the nucleosome landscape of chromatin, NER activity provides a unique functional caliper to understand how histone modifiers modulate DNA damage responses. At least three distinct lysine methyltransferases (KMTs) targeting histones have been shown to facilitate the detection of ultraviolet (UV) light-induced DNA lesions in the difficult to access DNA wrapped around histones in nucleosomes. By methylating core histones, these KMTs generate docking sites for DNA damage recognition factors before the chromatin structure is ultimately relaxed and the offending lesions are effectively excised. In view of their function in priming nucleosomes for DNA repair, mutations of genes coding for these KMTs are expected to cause the accumulation of DNA damage promoting cancer and other chronic diseases. Research on the question of how KMTs modulate DNA repair might pave the way to the development of pharmacologic agents for novel therapeutic strategies.
Collapse
Affiliation(s)
- Corina Gsell
- Institute of Pharmacology and Toxicology, University of Zurich-Vetsuisse, Winterthurerstrasse 260, 8057 Zurich, Switzerland
| | - Holger Richly
- Boehringer Ingelheim Pharma, Department of Molecular Biology, Birkendorfer Str. 65, 88397 Biberach an der Riß, Germany
| | - Frédéric Coin
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Equipe Labélisée Ligue contre le Cancer, Illkirch Cedex, Strasbourg, France
| | - Hanspeter Naegeli
- Institute of Pharmacology and Toxicology, University of Zurich-Vetsuisse, Winterthurerstrasse 260, 8057 Zurich, Switzerland
| |
Collapse
|
22
|
Yamaguchi M, Nishida T, Sato Y, Nakai Y, Kashiwakura I. Identification of Radiation-Dose-Dependent Expressive Genes in Individuals Exposed to External Ionizing Radiation. Radiat Res 2020; 193:274-285. [DOI: 10.1667/rr15532.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Masaru Yamaguchi
- Department of Radiation Science, Hirosaki University Graduate School of Health Sciences, Hirosaki, 036-8564, Japan
| | - Teruki Nishida
- Department of Radiation Science, Hirosaki University Graduate School of Health Sciences, Hirosaki, 036-8564, Japan
| | - Yoshiaki Sato
- Department of Radiation Science, Hirosaki University Graduate School of Health Sciences, Hirosaki, 036-8564, Japan
| | - Yuji Nakai
- Institute of Regional Innovation, Section of Food Sciences, Laboratory of Foods, Hirosaki University, Aomori 038-0012, Japan
| | - Ikuo Kashiwakura
- Department of Radiation Science, Hirosaki University Graduate School of Health Sciences, Hirosaki, 036-8564, Japan
| |
Collapse
|
23
|
Ho T, Tan BX, Lane D. How the Other Half Lives: What p53 Does When It Is Not Being a Transcription Factor. Int J Mol Sci 2019; 21:ijms21010013. [PMID: 31861395 PMCID: PMC6982169 DOI: 10.3390/ijms21010013] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 12/07/2019] [Accepted: 12/16/2019] [Indexed: 12/31/2022] Open
Abstract
It has been four decades since the discovery of p53, the designated ‘Guardian of the Genome’. P53 is primarily known as a master transcription factor and critical tumor suppressor, with countless studies detailing the mechanisms by which it regulates a host of gene targets and their consequent signaling pathways. However, transcription-independent functions of p53 also strongly define its tumor-suppressive capabilities and recent findings shed light on the molecular mechanisms hinted at by earlier efforts. This review highlights the transcription-independent mechanisms by which p53 influences the cellular response to genomic instability (in the form of replication stress, centrosome homeostasis, and transposition) and cell death. We also pinpoint areas for further investigation in order to better understand the context dependency of p53 transcription-independent functions and how these are perturbed when TP53 is mutated in human cancer.
Collapse
|
24
|
Yildiz A, Kaya Y, Tanriverdi O. Effect of the Interaction Between Selenium and Zinc on DNA Repair in Association With Cancer Prevention. J Cancer Prev 2019; 24:146-154. [PMID: 31624720 PMCID: PMC6786808 DOI: 10.15430/jcp.2019.24.3.146] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/26/2019] [Accepted: 06/04/2019] [Indexed: 12/13/2022] Open
Abstract
Cancer is the most common cause of death worldwide. Annually, more than ten million new cancer cases are diagnosed, and more than six million deaths occur due to cancer. Nonetheless, over 80% of human cancer may be preventable through proper nutrition. Numerous nutritional compounds are effective in preventing cancer. Selenium and zinc are essential micronutrients that have important roles in reducing oxidative stress and protecting DNA from the attack of reactive oxygen species. Selenium is an essential trace element that possesses several functions in many cellular processes for cancer prevention. Meanwhile, zinc may have protective effects on tumor initiation and progression, and it is an essential cofactor of several mammalian proteins. Results show that both selenium and zinc provide an effective progression of DNA repair system; thus, cancer development that originated from DNA damage is decreased. Results mostly focus on the separate effects of these two elements on different cell types, tissues, and organs, and their combined effects are largely unknown. This review aimed to emphasize the joint role of selenium and zinc specifically on DNA repair for cancer prevention.
Collapse
Affiliation(s)
- Aysegul Yildiz
- Department of Molecular Biology and Genetics, Faculty of Science, Mugla Sitki Kocman University, Mugla, Turkey
| | - Yesim Kaya
- Department of Molecular Biology and Genetics, Faculty of Science, Mugla Sitki Kocman University, Mugla, Turkey
| | - Ozgur Tanriverdi
- Department of Medical Oncology, Faculty of Medicine, Mugla Sitki Kocman University, Mugla, Turkey.,Department of Molecular Biology and Genetics, Graduate School of Natural and Applied Sciences, Mugla Sitki Kocman University, Mugla, Turkey
| |
Collapse
|
25
|
Kapitansky O, Gozes I. ADNP differentially interact with genes/proteins in correlation with aging: a novel marker for muscle aging. GeroScience 2019; 41:321-340. [PMID: 31264075 DOI: 10.1007/s11357-019-00079-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 06/10/2019] [Indexed: 12/25/2022] Open
Abstract
Activity-dependent neuroprotective protein (ADNP) is essential for embryonic development with ADNP mutations leading to syndromic autism, coupled with intellectual disabilities and motor developmental delays. Here, mining human muscle gene-expression databases, we have investigated the association of ADNP transcripts with muscle aging. We discovered increased ADNP and its paralogue ADNP2 expression in the vastus lateralis muscle of aged compared to young subjects, as well as altered expression of the ADNP and the ADNP2 genes in bicep brachii muscle of elderly people, in a sex-dependent manner. Prolonged exercise resulted in decreased ADNP expression, and increased ADNP2 expression in an age-dependent manner in the vastus lateralis muscle. ADNP expression level was further correlated with 49 genes showing age-dependent changes in muscle transcript expression. A high degree of correlation with ADNP was discovered for 24 genes with the leading gene/protein being NMNAT1 (nicotinamide nucleotide adenylyl transferase 1). Looking at correlations differentiating the young and the old muscles and comparing protein interactions revealed an association of ADNP with the cell division cycle 5-like protein (CDC5L), and an aging-muscle-related interactive pathway in the vastus lateralis. In the bicep brachii, very high correlation was detected with genes associated with immune functions as well as mitochondrial structure and function among others. Taken together, the results suggest a direct association of ADNP with muscle strength and implicate ADNP fortification in the protection against age-associated muscle wasting.
Collapse
Affiliation(s)
- Oxana Kapitansky
- The Lily and Avraham Gildor Chair for the Investigation of Growth Factors; The Elton Laboratory for Neuroendocrinology; Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Sagol School of Neuroscience and Adams Super Center for Brain Studies, Tel Aviv University, 69978, Tel Aviv, Israel
| | - Illana Gozes
- The Lily and Avraham Gildor Chair for the Investigation of Growth Factors; The Elton Laboratory for Neuroendocrinology; Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Sagol School of Neuroscience and Adams Super Center for Brain Studies, Tel Aviv University, 69978, Tel Aviv, Israel.
| |
Collapse
|
26
|
Mo X, Preston S, Zaidi MR. Macroenvironment-gene-microenvironment interactions in ultraviolet radiation-induced melanomagenesis. Adv Cancer Res 2019; 144:1-54. [PMID: 31349897 DOI: 10.1016/bs.acr.2019.03.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cutaneous malignant melanoma is one of the few major cancers that continue to exhibit a positive rate of increase in the developed world. A wealth of epidemiological data has undisputedly implicated ultraviolet radiation (UVR) from sunlight and artificial sources as the major risk factor for melanomagenesis. However, the molecular mechanisms of this cause-and-effect relationship remain murky and understudied. Recent efforts on multiple fronts have brought unprecedented expansion of our knowledge base on this subject and it is now clear that melanoma is caused by a complex interaction between genetic predisposition and environmental exposure, primarily to UVR. Here we provide an overview of the effects of the macroenvironment (UVR) on the skin microenvironment and melanocyte-specific intrinsic (mostly genetic) landscape, which conspire to produce one of the deadliest malignancies.
Collapse
Affiliation(s)
- Xuan Mo
- Fels Institute for Cancer Research and Molecular Biology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
| | - Sarah Preston
- Fels Institute for Cancer Research and Molecular Biology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
| | - M Raza Zaidi
- Fels Institute for Cancer Research and Molecular Biology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States.
| |
Collapse
|
27
|
Hicks SD, Miller MW. Ethanol-induced DNA repair in neural stem cells is transforming growth factor β1-dependent. Exp Neurol 2019; 317:214-225. [PMID: 30853389 DOI: 10.1016/j.expneurol.2019.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 12/13/2018] [Accepted: 02/07/2019] [Indexed: 12/18/2022]
Abstract
Following neurotoxic damage, cells repair their DNA, and survive or undergo apoptosis. This study tests the hypothesis that ethanol induces a DNA damage response (DDR) in neural stem cells (NSCs) that promotes excision repair (ER) and this repair is influenced by the growth factor environment. Non-immortalized NSCs treated with fibroblast growth factor 2 or transforming growth factor (TGF) β1 were exposed to ethanol. Ethanol increased total DNA damage, reactive oxygen species, and oxidized DNA bases. TGFβ1 potentiated these toxic effects. Transcriptional analyses of cultured NSCs revealed ethanol-induced increases in transcripts related to the DDR (e.g., Hus1 and p53), base ER (e.g., Mutyh and Nthl1), and nucleotide ER (e.g., Xpc), particularly in the presence of TGFβ1. Expression and activity of ER proteins were affected by ethanol. Similar changes occurred in proliferating cells of ethanol-treated mouse fetuses. Ethanol-induced DNA repair in NSCs depends on the ambient growth factors. Gene products for DNA repair in stem cells are among the first biomarkers identifying fetal alcohol-induced damage.
Collapse
Affiliation(s)
- Steven D Hicks
- Department of Neuroscience and Physiology, State University of New York - Upstate Medical University, Syracuse, NY 13210, USA; Developmental Exposure Alcohol Research Center, Binghamton NY 13902, Cortland NY 13045, and Syracuse, NY 13210, USA
| | - Michael W Miller
- Department of Neuroscience and Physiology, State University of New York - Upstate Medical University, Syracuse, NY 13210, USA; Developmental Exposure Alcohol Research Center, Binghamton NY 13902, Cortland NY 13045, and Syracuse, NY 13210, USA; Department of Anatomy, Touro College of Osteopathic Medicine, Middletown, NY 10940, USA; Research Service, Veterans Affairs Medical Center, Syracuse, NY 13210, USA.
| |
Collapse
|
28
|
Kusakabe M, Onishi Y, Tada H, Kurihara F, Kusao K, Furukawa M, Iwai S, Yokoi M, Sakai W, Sugasawa K. Mechanism and regulation of DNA damage recognition in nucleotide excision repair. Genes Environ 2019; 41:2. [PMID: 30700997 PMCID: PMC6346561 DOI: 10.1186/s41021-019-0119-6] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 01/08/2019] [Indexed: 11/10/2022] Open
Abstract
Nucleotide excision repair (NER) is a versatile DNA repair pathway, which can remove an extremely broad range of base lesions from the genome. In mammalian global genomic NER, the XPC protein complex initiates the repair reaction by recognizing sites of DNA damage, and this depends on detection of disrupted/destabilized base pairs within the DNA duplex. A model has been proposed that XPC first interacts with unpaired bases and then the XPD ATPase/helicase in concert with XPA verifies the presence of a relevant lesion by scanning a DNA strand in 5′-3′ direction. Such multi-step strategy for damage recognition would contribute to achieve both versatility and accuracy of the NER system at substantially high levels. In addition, recognition of ultraviolet light (UV)-induced DNA photolesions is facilitated by the UV-damaged DNA-binding protein complex (UV-DDB), which not only promotes recruitment of XPC to the damage sites, but also may contribute to remodeling of chromatin structures such that the DNA lesions gain access to XPC and the following repair proteins. Even in the absence of UV-DDB, however, certain types of histone modifications and/or chromatin remodeling could occur, which eventually enable XPC to find sites with DNA lesions. Exploration of novel factors involved in regulation of the DNA damage recognition process is now ongoing.
Collapse
Affiliation(s)
- Masayuki Kusakabe
- 1Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan
| | - Yuki Onishi
- 1Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan.,2Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan
| | - Haruto Tada
- 1Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan.,2Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan
| | - Fumika Kurihara
- 1Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan.,2Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan
| | - Kanako Kusao
- 1Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan.,3Faculty of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan
| | - Mari Furukawa
- 1Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan
| | - Shigenori Iwai
- 4Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka, 560-8531 Japan
| | - Masayuki Yokoi
- 1Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan.,2Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan.,3Faculty of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan
| | - Wataru Sakai
- 1Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan.,2Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan.,3Faculty of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan
| | - Kaoru Sugasawa
- 1Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan.,2Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan.,3Faculty of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501 Japan
| |
Collapse
|
29
|
Sugasawa K. Mechanism and regulation of DNA damage recognition in mammalian nucleotide excision repair. DNA Repair (Amst) 2019; 45:99-138. [DOI: 10.1016/bs.enz.2019.06.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
30
|
Martínez-López W, Moreno-Ortega D, Valencia-Payan J, Sammader P, Meschini R, Palitti F. Influence of chromatin remodeling in the removal of UVC-induced damage in TCR proficient and deficient Chinese hamster cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 836:124-131. [DOI: 10.1016/j.mrgentox.2018.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 08/06/2018] [Accepted: 08/07/2018] [Indexed: 01/12/2023]
|
31
|
Macaeva E, Mysara M, De Vos WH, Baatout S, Quintens R. Gene expression-based biodosimetry for radiological incidents: assessment of dose and time after radiation exposure. Int J Radiat Biol 2018; 95:64-75. [PMID: 30247087 DOI: 10.1080/09553002.2018.1511926] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
PURPOSE In order to ensure efficient use of medical resources following a radiological incident, there is an urgent need for high-throughput time-efficient biodosimetry tools. In the present study, we tested the applicability of a gene expression signature for the prediction of exposure dose as well as the time elapsed since irradiation. MATERIALS AND METHODS We used whole blood samples from seven healthy volunteers as reference samples (X-ray doses: 0, 25, 50, 100, 500, 1000, and 2000 mGy; time points: 8, 12, 24, 36 and 48 h) and samples from seven other individuals as 'blind samples' (20 samples in total). RESULTS Gene expression values normalized to the reference gene without normalization to the unexposed controls were sufficient to predict doses with a correlation coefficient between the true and the predicted doses of 0.86. Importantly, we could also classify the samples according to the time since exposure with a correlation coefficient between the true and the predicted time point of 0.96. Because of the dynamic nature of radiation-induced gene expression, this feature will be of critical importance for adequate gene expression-based dose prediction in a real emergency situation. In addition, in this study we also compared different methodologies for RNA extraction available on the market and suggested the one most suitable for emergency situation which does not require on-spot availability of any specific reagents or equipment. CONCLUSIONS Our results represent an important advancement in the application of gene expression for biodosimetry purposes.
Collapse
Affiliation(s)
- Ellina Macaeva
- a Interdisciplinary Biosciences Group, Belgian Nuclear Research Centre, SCK•CEN, Mol , Belgium.,b Department of Molecular Biotechnology , Ghent University , Ghent , Belgium
| | - Mohamed Mysara
- a Interdisciplinary Biosciences Group, Belgian Nuclear Research Centre, SCK•CEN, Mol , Belgium
| | - Winnok H De Vos
- b Department of Molecular Biotechnology , Ghent University , Ghent , Belgium.,c Department of Veterinary Sciences , University of Antwerp , Belgium
| | - Sarah Baatout
- a Interdisciplinary Biosciences Group, Belgian Nuclear Research Centre, SCK•CEN, Mol , Belgium.,b Department of Molecular Biotechnology , Ghent University , Ghent , Belgium
| | - Roel Quintens
- a Interdisciplinary Biosciences Group, Belgian Nuclear Research Centre, SCK•CEN, Mol , Belgium
| |
Collapse
|
32
|
Quinet A, Lerner LK, Martins DJ, Menck CFM. Filling gaps in translesion DNA synthesis in human cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 836:127-142. [PMID: 30442338 DOI: 10.1016/j.mrgentox.2018.02.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 02/21/2018] [Indexed: 01/06/2023]
Abstract
During DNA replication, forks may encounter unrepaired lesions that hamper DNA synthesis. Cells have universal strategies to promote damage bypass allowing cells to survive. DNA damage tolerance can be performed upon template switch or by specialized DNA polymerases, known as translesion (TLS) polymerases. Human cells count on more than eleven TLS polymerases and this work reviews the functions of some of these enzymes: Rev1, Pol η, Pol ι, Pol κ, Pol θ and Pol ζ. The mechanisms of damage bypass vary according to the lesion, as well as to the TLS polymerases available, and may occur directly at the fork during replication. Alternatively, the lesion may be skipped, leaving a single-stranded DNA gap that will be replicated later. Details of the participation of these enzymes are revised for the replication of damaged template. TLS polymerases also have functions in other cellular processes. These include involvement in somatic hypermutation in immunoglobulin genes, direct participation in recombination and repair processes, and contributing to replicating noncanonical DNA structures. The importance of DNA damage replication to cell survival is supported by recent discoveries that certain genes encoding TLS polymerases are induced in response to DNA damaging agents, protecting cells from a subsequent challenge to DNA replication. We retrace the findings on these genotoxic (adaptive) responses of human cells and show the common aspects with the SOS responses in bacteria. Paradoxically, although TLS of DNA damage is normally an error prone mechanism, in general it protects from carcinogenesis, as evidenced by increased tumorigenesis in xeroderma pigmentosum variant patients, who are deficient in Pol η. As these TLS polymerases also promote cell survival, they constitute an important mechanism by which cancer cells acquire resistance to genotoxic chemotherapy. Therefore, the TLS polymerases are new potential targets for improving therapy against tumors.
Collapse
Affiliation(s)
- Annabel Quinet
- Saint Louis University School of Medicine, St. Louis, MO, United States.
| | - Leticia K Lerner
- MRC Laboratory of Molecular Biology,Francis Crick Avenue, Cambridge CB2 0QH, UK.
| | - Davi J Martins
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Carlos F M Menck
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
| |
Collapse
|
33
|
Enhancement of UVB-induced DNA damage repair after a chronic low-dose UVB pre-stimulation. DNA Repair (Amst) 2018; 63:56-62. [PMID: 29448173 DOI: 10.1016/j.dnarep.2018.01.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 11/27/2017] [Accepted: 01/19/2018] [Indexed: 01/13/2023]
Abstract
Absorption of solar ultraviolet (UV) radiation by DNA leads to the formation of the highly mutagenic cyclobutane pyrimidine dimer (CPD). The mutagenicity of CPD is caused, in part, by the fact that their recognition and repair by the nucleotide excision repair (NER) pathway is challenging and slow. It has been previously shown that a pre-stimulation with genotoxic agents improve NER efficiency of CPD, indicating a potential adaptive response of this repair pathway. We have pre-treated human dermal fibroblasts with repeated subletal low doses of UVB (chronic low-dose of UVB; CLUV) to determine whether it could enhance NER capacity to repair CPD. Our results show that CLUV pre-treatment greatly enhances CPD repair but have little effect on the repair of another UV-induced bypirimidine photoproduct, the pyrimidine (6-4) pyrimidone photoproducts (6-4 PP). We have determined that the CLUV treatment activates p53 and we found an increase of DDB2 and XPC gene expression. This is consistent with an increasing level of NER recognition proteins, DDB2 and XPC, we found concentrated at the chromatin. This study represents the first demonstration that chronic UVB exposure can stimulate NER pathway. Altogether, these results shed light on the potential adaptability of the NER by chronic UVB irradiation and the mechanisms involved.
Collapse
|
34
|
DNA damage responses and p53 in the aging process. Blood 2017; 131:488-495. [PMID: 29141944 DOI: 10.1182/blood-2017-07-746396] [Citation(s) in RCA: 190] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 09/01/2017] [Indexed: 12/18/2022] Open
Abstract
The genome is constantly attacked by genotoxic insults. DNA damage has long been established as a cause of cancer development through its mutagenic consequences. Conversely, radiation therapy and chemotherapy induce DNA damage to drive cells into apoptosis or senescence as outcomes of the DNA damage response (DDR). More recently, DNA damage has been recognized as a causal factor for the aging process. The role of DNA damage in aging and age-related diseases is illustrated by numerous congenital progeroid syndromes that are caused by mutations in genome maintenance pathways. During the past 2 decades, understanding how DDR drives cancer development and contributes to the aging process has progressed rapidly. It turns out that the DDR factor p53 takes center stage during tumor development and also plays an important role in the aging process. Studies in metazoan models ranging from Caenorhabditis elegans to mammals have revealed cell-autonomous and systemic DDR mechanisms that orchestrate adaptive responses that augment maintenance of the aging organism amid gradually accumulating DNA damage.
Collapse
|
35
|
ASH1L histone methyltransferase regulates the handoff between damage recognition factors in global-genome nucleotide excision repair. Nat Commun 2017; 8:1333. [PMID: 29109511 PMCID: PMC5673894 DOI: 10.1038/s41467-017-01080-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 08/07/2017] [Indexed: 11/09/2022] Open
Abstract
Global-genome nucleotide excision repair (GG-NER) prevents ultraviolet (UV) light-induced skin cancer by removing mutagenic cyclobutane pyrimidine dimers (CPDs). These lesions are formed abundantly on DNA wrapped around histone octamers in nucleosomes, but a specialized damage sensor known as DDB2 ensures that they are accessed by the XPC initiator of GG-NER activity. We report that DDB2 promotes CPD excision by recruiting the histone methyltransferase ASH1L, which methylates lysine 4 of histone H3. In turn, methylated H3 facilitates the docking of the XPC complex to nucleosomal histone octamers. Consequently, DDB2, ASH1L and XPC proteins co-localize transiently on histone H3-methylated nucleosomes of UV-exposed cells. In the absence of ASH1L, the chromatin binding of XPC is impaired and its ability to recruit downstream GG-NER effectors diminished. Also, ASH1L depletion suppresses CPD excision and confers UV hypersensitivity. These findings show that ASH1L configures chromatin for the effective handoff between damage recognition factors during GG-NER activity.
Collapse
|
36
|
Han C, Zhao R, Kroger J, He J, Wani G, Wang QE, Wani AA. UV radiation-induced SUMOylation of DDB2 regulates nucleotide excision repair. Carcinogenesis 2017; 38:976-985. [PMID: 28981631 DOI: 10.1093/carcin/bgx076] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 07/19/2017] [Indexed: 12/22/2022] Open
Abstract
Subunit 2 of DNA damage-binding protein complex (DDB2) is an early sensor of nucleotide excision repair (NER) pathway for eliminating DNA damage induced by UV radiation (UVR) and cisplatin treatments of mammalian cells. DDB2 is modified by ubiquitin and poly(ADP-ribose) (PAR) in response to UVR, and these modifications play a crucial role in regulating NER. Here, using immuno-analysis of irradiated cell extracts, we have identified multiple post-irradiation modifications of DDB2 protein. Interestingly, although the DNA lesions induced by both UVR and cisplatin are corrected by NER, only the UV irradiation, but not the cisplatin treatment, induces any discernable DDB2 modifications. We, for the first time, show that the appearance of UVR-induced DDB2 modifications depend on the binding of DDB2 to the damaged chromatin and the participation of functionally active 26S proteasome. The in vitro and in vivo analysis revealed that SUMO-1 conjugations comprise a significant portion of these UVR-induced DDB2 modifications. Mapping of SUMO-modified sites demonstrated that UVR-induced SUMOylation occurs on Lys-309 residue of DDB2 protein. Mutation of Lys-309 to Arg-309 diminished the DDB2 SUMOylation observable both in vitro and in vivo. Moreover, K309R mutated DDB2 lost its function of recruiting XPC to the DNA damage sites, as well as the ability to repair cyclobutane pyrimidine dimers following cellular UV irradiation. Taken together, our results indicate that DDB2 is modified by SUMOylation upon UV irradiation, and this post-translational modification plays an important role in the initial recognition and processing of UVR-induced DNA damage occurring within the context of chromatin.
Collapse
Affiliation(s)
| | | | | | | | | | - Qi-En Wang
- Department of Radiology.,James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Altaf A Wani
- Department of Radiology.,James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| |
Collapse
|
37
|
Zhu Q, Wei S, Sharma N, Wani G, He J, Wani AA. Human CRL4 DDB2 ubiquitin ligase preferentially regulates post-repair chromatin restoration of H3K56Ac through recruitment of histone chaperon CAF-1. Oncotarget 2017; 8:104525-104542. [PMID: 29262658 PMCID: PMC5732824 DOI: 10.18632/oncotarget.21869] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 09/30/2017] [Indexed: 11/25/2022] Open
Abstract
Acetylated histone H3 lysine 56 (H3K56Ac) diminishes in response to DNA damage but is restored following DNA repair. Here, we report that CRL4DDB2 ubiquitin ligase preferentially regulates post-repair chromatin restoration of H3K56Ac through recruitment of histone chaperon CAF-1. We show that H3K56Ac accumulates at DNA damage sites. The restoration of H3K56Ac but not H3K27Ac, H3K18Ac and H3K14Ac depends on CAF-1 function, whereas all these acetylations are mediated by CBP/p300. The CRL4DDB2 components, DDB1, DDB2 and CUL4A, are also required for maintaining the H3K56Ac and H3K9Ac level in chromatin, and for restoring H3K56Ac following induction of DNA photolesions and strand breaks. Depletion of CUL4A decreases the recruitment of CAF-1 p60 and p150 to ultraviolet radiation- and phleomycin-induced DNA damage. Neddylation inhibition renders CRL4DDB2 inactive, decreases H3K56Ac level, diminishes CAF-1 recruitment and prevents H3K56Ac restoration. Mutation in the PIP box of DDB2 compromises its capability to elevate the H3K56Ac level but does not affect XPC ubiquitination. These results demonstrated a function of CRL4DDB2 in differential regulation of histone acetylation in response to DNA damage, suggesting a novel role of CRL4DDB2 in repair-driven chromatin assembly.
Collapse
Affiliation(s)
- Qianzheng Zhu
- Department of Radiology, The Ohio State University, Columbus, 43210, OH
| | - Shengcai Wei
- Department of Radiology, The Ohio State University, Columbus, 43210, OH
| | - Nidhi Sharma
- Department of Radiology, The Ohio State University, Columbus, 43210, OH
| | - Gulzar Wani
- Department of Radiology, The Ohio State University, Columbus, 43210, OH
| | - Jinshan He
- Department of Radiology, The Ohio State University, Columbus, 43210, OH
| | - Altaf A Wani
- Department of Radiology, The Ohio State University, Columbus, 43210, OH.,Department of Molecular and Cellular Biochemistry, The Ohio State University, Columbus, 43210, OH.,James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, 43210, OH
| |
Collapse
|
38
|
Huang S, Fantini D, Merrill BJ, Bagchi S, Guzman G, Raychaudhuri P. DDB2 Is a Novel Regulator of Wnt Signaling in Colon Cancer. Cancer Res 2017; 77:6562-6575. [PMID: 29021137 DOI: 10.1158/0008-5472.can-17-1570] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/29/2017] [Accepted: 09/28/2017] [Indexed: 01/23/2023]
Abstract
Deregulation of the Wnt/β-catenin signaling pathway drives the development of colorectal cancer, but understanding of this pathway remains incomplete. Here, we report that the damage-specific DNA-binding protein DDB2 is critical for β-catenin-mediated activation of RNF43, which restricts Wnt signaling by removing Wnt receptors from the cell surface. Reduced expression of DDB2 and RNF43 was observed in human hyperplastic colonic foci. DDB2 recruited EZH2 and β-catenin at an upstream site in the Rnf43 gene, enabling functional interaction with distant TCF4/β-catenin-binding sites in the intron of Rnf43 This novel activity of DDB2 was required for RNF43 function as a negative feedback regulator of Wnt signaling. Mice genetically deficient in DDB2 exhibited increased susceptibility to colon tumor development in a manner associated with higher abundance of the Wnt receptor-expressing cells and greater activation of the downstream Wnt pathway. Our results identify DDB2 as both a partner and regulator of Wnt signaling, with an important role in suppressing colon cancer development. Cancer Res; 77(23); 6562-75. ©2017 AACR.
Collapse
Affiliation(s)
- Shuo Huang
- Department of Biochemistry and Molecular Genetics, University of Illinois, College of Medicine, Chicago, Illinois
| | - Damiano Fantini
- Department of Biochemistry and Molecular Genetics, University of Illinois, College of Medicine, Chicago, Illinois
| | - Bradley J Merrill
- Department of Biochemistry and Molecular Genetics, University of Illinois, College of Medicine, Chicago, Illinois.,Genome Editing Core, University of Illinois, Chicago, Illinois
| | - Srilata Bagchi
- Department of Oral Biology, College of Dentistry, University of Illinois, Chicago, Illinois.
| | - Grace Guzman
- Department of Pathology, University of Illinois, Chicago, Illinois
| | - Pradip Raychaudhuri
- Department of Biochemistry and Molecular Genetics, University of Illinois, College of Medicine, Chicago, Illinois. .,Jesse Brown VA Medical Center, Chicago, Illinois
| |
Collapse
|
39
|
Rüthemann P, Balbo Pogliano C, Codilupi T, Garajovà Z, Naegeli H. Chromatin remodeler CHD1 promotes XPC-to-TFIIH handover of nucleosomal UV lesions in nucleotide excision repair. EMBO J 2017; 36:3372-3386. [PMID: 29018037 DOI: 10.15252/embj.201695742] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 08/10/2017] [Accepted: 09/08/2017] [Indexed: 12/27/2022] Open
Abstract
Ultraviolet (UV) light induces mutagenic cyclobutane pyrimidine dimers (CPDs) in nucleosomal DNA that is tightly wrapped around histone octamers. How global-genome nucleotide excision repair (GG-NER) processes CPDs despite that this chromatin arrangement is poorly understood. An increased chromatin association of CHD1 (chromodomain helicase DNA-binding 1) upon UV irradiation indicated possible roles of this chromatin remodeler in the UV damage response. Immunoprecipitation of chromatin fragments revealed that CHD1 co-localizes in part with GG-NER factors. Chromatin fractionation showed that the UV-dependent recruitment of CHD1 occurs to UV lesions in histone-assembled nucleosomal DNA and that this CHD1 relocation requires the lesion sensor XPC (xeroderma pigmentosum group C). In situ immunofluorescence analyses further demonstrate that CHD1 facilitates substrate handover from XPC to the downstream TFIIH (transcription factor IIH). Consequently, CHD1 depletion slows down CPD excision and sensitizes cells to UV-induced cytotoxicity. The finding of a CHD1-driven lesion handover between sequentially acting GG-NER factors on nucleosomal histone octamers suggests that chromatin provides a recognition scaffold enabling the detection of a subset of CPDs.
Collapse
Affiliation(s)
- Peter Rüthemann
- Institute of Pharmacology and Toxicology, University of Zurich-Vetsuisse, Zurich, Switzerland
| | - Chiara Balbo Pogliano
- Institute of Pharmacology and Toxicology, University of Zurich-Vetsuisse, Zurich, Switzerland
| | - Tamara Codilupi
- Institute of Pharmacology and Toxicology, University of Zurich-Vetsuisse, Zurich, Switzerland
| | - Zuzana Garajovà
- Institute of Pharmacology and Toxicology, University of Zurich-Vetsuisse, Zurich, Switzerland
| | - Hanspeter Naegeli
- Institute of Pharmacology and Toxicology, University of Zurich-Vetsuisse, Zurich, Switzerland
| |
Collapse
|
40
|
Guthrie OW. Functional consequences of inducible genetic elements from the p53 SOS response in a mammalian organ system. Exp Cell Res 2017; 359:50-61. [DOI: 10.1016/j.yexcr.2017.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 08/02/2017] [Accepted: 08/05/2017] [Indexed: 10/19/2022]
|
41
|
Phosphorylated HBO1 at UV irradiated sites is essential for nucleotide excision repair. Nat Commun 2017; 8:16102. [PMID: 28719581 PMCID: PMC5520108 DOI: 10.1038/ncomms16102] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 05/30/2017] [Indexed: 12/22/2022] Open
Abstract
HBO1, a histone acetyl transferase, is a co-activator of DNA pre-replication complex formation. We recently reported that HBO1 is phosphorylated by ATM and/or ATR and binds to DDB2 after ultraviolet irradiation. Here, we show that phosphorylated HBO1 at cyclobutane pyrimidine dimer (CPD) sites mediates histone acetylation to facilitate recruitment of XPC at the damaged DNA sites. Furthermore, HBO1 facilitates accumulation of SNF2H and ACF1, an ATP-dependent chromatin remodelling complex, to CPD sites. Depletion of HBO1 inhibited repair of CPDs and sensitized cells to ultraviolet irradiation. However, depletion of HBO1 in cells derived from xeroderma pigmentosum patient complementation groups, XPE, XPC and XPA, did not lead to additional sensitivity towards ultraviolet irradiation. Our findings suggest that HBO1 acts in concert with SNF2H-ACF1 to make the chromosome structure more accessible to canonical nucleotide excision repair factors.
Collapse
|
42
|
Lerner LK, Francisco G, Soltys DT, Rocha CRR, Quinet A, Vessoni AT, Castro LP, David TIP, Bustos SO, Strauss BE, Gottifredi V, Stary A, Sarasin A, Chammas R, Menck CFM. Predominant role of DNA polymerase eta and p53-dependent translesion synthesis in the survival of ultraviolet-irradiated human cells. Nucleic Acids Res 2017; 45:1270-1280. [PMID: 28180309 PMCID: PMC5388406 DOI: 10.1093/nar/gkw1196] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 11/15/2016] [Accepted: 11/17/2016] [Indexed: 01/19/2023] Open
Abstract
Genome lesions trigger biological responses that help cells manage damaged DNA, improving cell survival. Pol eta is a translesion synthesis (TLS) polymerase that bypasses lesions that block replicative polymerases, avoiding continued stalling of replication forks, which could lead to cell death. p53 also plays an important role in preventing cell death after ultraviolet (UV) light exposure. Intriguingly, we show that p53 does so by favoring translesion DNA synthesis by pol eta. In fact, the p53-dependent induction of pol eta in normal and DNA repair-deficient XP-C human cells after UV exposure has a protective effect on cell survival after challenging UV exposures, which was absent in p53- and Pol H-silenced cells. Viability increase was associated with improved elongation of nascent DNA, indicating the protective effect was due to more efficient lesion bypass by pol eta. This protection was observed in cells proficient or deficient in nucleotide excision repair, suggesting that, from a cell survival perspective, proper bypass of DNA damage can be as relevant as removal. These results indicate p53 controls the induction of pol eta in DNA damaged human cells, resulting in improved TLS and enhancing cell tolerance to DNA damage, which parallels SOS responses in bacteria.
Collapse
Affiliation(s)
- Leticia K Lerner
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Guilherme Francisco
- Department of Center for Translational Oncology Cellular, Biology Group, Center for Translational Oncology, Cancer Institute of the State of São Paulo-ICESP, São Paulo, Brazil
| | - Daniela T Soltys
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Clarissa R R Rocha
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Annabel Quinet
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Alexandre T Vessoni
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Ligia P Castro
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Taynah I P David
- Viral Vector Laboratory, Heart Institute, University of São Paulo, São Paulo, Brazil
| | - Silvina O Bustos
- Department of Center for Translational Oncology Cellular, Biology Group, Center for Translational Oncology, Cancer Institute of the State of São Paulo-ICESP, São Paulo, Brazil
| | - Bryan E Strauss
- Viral Vector Laboratory, Heart Institute, University of São Paulo, São Paulo, Brazil
| | - Vanesa Gottifredi
- Cell Cycle and Genomic Stability Laboratory, Fundación Instituto Leloir-CONICET, Buenos Aires, Argentina
| | - Anne Stary
- CNRS-UMR8200, Université Paris-Sud, Institut de Cancérologie Gustave Roussy, Villejuif, France
| | - Alain Sarasin
- CNRS-UMR8200, Université Paris-Sud, Institut de Cancérologie Gustave Roussy, Villejuif, France
| | - Roger Chammas
- Department of Center for Translational Oncology Cellular, Biology Group, Center for Translational Oncology, Cancer Institute of the State of São Paulo-ICESP, São Paulo, Brazil
| | - Carlos F M Menck
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| |
Collapse
|
43
|
Kakumu E, Nakanishi S, Shiratori HM, Kato A, Kobayashi W, Machida S, Yasuda T, Adachi N, Saito N, Ikura T, Kurumizaka H, Kimura H, Yokoi M, Sakai W, Sugasawa K. Xeroderma pigmentosum group C protein interacts with histones: regulation by acetylated states of histone H3. Genes Cells 2017; 22:310-327. [PMID: 28233440 DOI: 10.1111/gtc.12479] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 01/13/2017] [Indexed: 12/14/2022]
Abstract
In the mammalian global genome nucleotide excision repair pathway, two damage recognition factors, XPC and UV-DDB, play pivotal roles in the initiation of the repair reaction. However, the molecular mechanisms underlying regulation of the lesion recognition process in the context of chromatin structures remain to be understood. Here, we show evidence that damage recognition factors tend to associate with chromatin regions devoid of certain types of acetylated histones. Treatment of cells with histone deacetylase inhibitors retarded recruitment of XPC to sites of UV-induced DNA damage and the subsequent repair process. Biochemical studies showed novel multifaceted interactions of XPC with histone H3, which were profoundly impaired by deletion of the N-terminal tail of histone H3. In addition, histone H1 also interacted with XPC. Importantly, acetylation of histone H3 markedly attenuated the interaction with XPC in vitro, and local UV irradiation of cells decreased the level of H3K27ac in the damaged areas. Our results suggest that histone deacetylation plays a significant role in the process of DNA damage recognition for nucleotide excision repair and that the localization and functions of XPC can be regulated by acetylated states of histones.
Collapse
Affiliation(s)
- Erina Kakumu
- Division of Genomic Functions and Dynamics, Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan.,Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Seiya Nakanishi
- Division of Genomic Functions and Dynamics, Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan.,Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Hiromi M Shiratori
- Division of Genomic Functions and Dynamics, Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan.,Department of Biology, Faculty of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Akari Kato
- Division of Genomic Functions and Dynamics, Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan.,Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Wataru Kobayashi
- Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Shinichi Machida
- Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Takeshi Yasuda
- National Institute for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
| | - Naoko Adachi
- Division of Molecular Pharmacology, Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Naoaki Saito
- Division of Molecular Pharmacology, Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Tsuyoshi Ikura
- Department of Mutagenesis, Radiation Biology Center, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Hitoshi Kurumizaka
- Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Hiroshi Kimura
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8501, Japan
| | - Masayuki Yokoi
- Division of Genomic Functions and Dynamics, Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan.,Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan.,Department of Biology, Faculty of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Wataru Sakai
- Division of Genomic Functions and Dynamics, Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan.,Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan.,Department of Biology, Faculty of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Kaoru Sugasawa
- Division of Genomic Functions and Dynamics, Biosignal Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan.,Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan.,Department of Biology, Faculty of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| |
Collapse
|
44
|
Periovulatory follicular fluid levels of estradiol trigger inflammatory and DNA damage responses in oviduct epithelial cells. PLoS One 2017; 12:e0172192. [PMID: 28231273 PMCID: PMC5322925 DOI: 10.1371/journal.pone.0172192] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 02/01/2017] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Ovarian steroid hormones (mainly E2 and P4) regulate oviduct physiology. Serum-E2 acts on the oviduct epithelium from the basolateral cell compartment. Upon ovulation, the apical compartment of the oviduct epithelium is temporarily exposed to follicular fluid, which contains much higher levels of E2 than serum. The aim of this study was to evaluate the effects of human periovulatory follicular fluid levels of E2 on oviduct epithelial cells using two porcine in vitro models. METHODS A cell line derived from the porcine oviductal epithelium (CCLV-RIE270) was characterized (lineage markers, proliferation characteristics and transformation status). Primary porcine oviduct epithelial cells (POEC) were cultured in air-liquid interface and differentiation was assessed histologically. Both cultures were exposed to E2 (10 ng/ml and 200 ng/ml). Proliferation of CCLV-RIE270 and POEC was determined by real-time impedance monitoring and immunohistochemical detection of Ki67. Furthermore, marker gene expression for DNA damage response (DDR) and inflammation was quantified. RESULTS CCLV-RIE270 was not transformed and exhibited properties of secretory oviduct epithelial cells. Periovulatory follicular fluid levels of E2 (200 ng/ml) upregulated the expression of inflammatory genes in CCLV-RIE270 but not in POEC (except for IL8). Expression of DDR genes was elevated in both models. A significant increase in cell proliferation could not be detected in response to E2. CONCLUSIONS CCLV-RIE270 and POEC are complementary models to evaluate the consequences of oviduct exposure to follicular fluid components. Single administration of periovulatory follicular fluid E2 levels trigger inflammatory and DNA damage responses, but not proliferation in oviduct epithelial cells.
Collapse
|
45
|
Holcomb N, Goswami M, Han SG, Scott T, D'Orazio J, Orren DK, Gairola CG, Mellon I. Inorganic arsenic inhibits the nucleotide excision repair pathway and reduces the expression of XPC. DNA Repair (Amst) 2017; 52:70-80. [PMID: 28237621 DOI: 10.1016/j.dnarep.2017.02.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 01/11/2017] [Accepted: 02/12/2017] [Indexed: 11/17/2022]
Abstract
Chronic exposure to arsenic, most often through contaminated drinking water, has been linked to several types of cancer in humans, including skin and lung cancer. However, the mechanisms underlying its role in causing cancer are not well understood. There is evidence that exposure to arsenic can enhance the carcinogenicity of UV light in inducing skin cancers and may enhance the carcinogenicity of tobacco smoke in inducing lung cancers. The nucleotide excision repair (NER) pathway removes different types of DNA damage including those produced by UV light and components of tobacco smoke. The aim of the present study was to investigate the effect of sodium arsenite on the NER pathway in human lung fibroblasts (IMR-90 cells) and primary mouse keratinocytes. To measure NER, we employed a slot-blot assay to quantify the introduction and removal of UV light-induced 6-4 photoproducts (6-4 PP) and cyclobutane pyrimidine dimers (CPDs). We find a concentration-dependent inhibition of the removal of 6-4 PPs and CPDs in both cell types treated with arsenite. Treatment of both cell types with arsenite resulted in a significant reduction in the abundance of XPC, a protein that is critical for DNA damage recognition in NER. The abundance of RNA expressed from several key NER genes was also significantly reduced by treatment of IMR-90 cells with arsenite. Finally, treatment of IMR-90 cells with MG-132 abrogated the reduction in XPC protein, suggesting an involvement of the proteasome in the reduction of XPC protein produced by treatment of cells with arsenic. The inhibition of NER by arsenic may reflect one mechanism underlying the role of arsenic exposure in enhancing cigarette smoke-induced lung carcinogenesis and UV light-induced skin cancer, and it may provide some insights into the emergence of arsenic trioxide as a chemotherapeutic agent.
Collapse
Affiliation(s)
- Nathaniel Holcomb
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, KY, United States
| | - Mamta Goswami
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, KY, United States
| | - Sung Gu Han
- Toxicology Laboratory, Department of Food Science and Biotechnology of Animal Resources, College of Animal Bioscience and Technology, Konkuk University, Seoul 05029, Republic of Korea
| | - Tim Scott
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, KY, United States
| | - John D'Orazio
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, KY, United States
| | - David K Orren
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, KY, United States
| | - C Gary Gairola
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, KY, United States
| | - Isabel Mellon
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, KY, United States.
| |
Collapse
|
46
|
Nikolova T, Roos WP, Krämer OH, Strik HM, Kaina B. Chloroethylating nitrosoureas in cancer therapy: DNA damage, repair and cell death signaling. Biochim Biophys Acta Rev Cancer 2017; 1868:29-39. [PMID: 28143714 DOI: 10.1016/j.bbcan.2017.01.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 01/25/2017] [Accepted: 01/26/2017] [Indexed: 01/20/2023]
Abstract
Chloroethylating nitrosoureas (CNU), such as lomustine, nimustine, semustine, carmustine and fotemustine are used for the treatment of malignant gliomas, brain metastases of different origin, melanomas and Hodgkin disease. They alkylate the DNA bases and give rise to the formation of monoadducts and subsequently interstrand crosslinks (ICL). ICL are critical cytotoxic DNA lesions that link the DNA strands covalently and block DNA replication and transcription. As a result, S phase progression is inhibited and cells are triggered to undergo apoptosis and necrosis, which both contribute to the effectiveness of CNU-based cancer therapy. However, tumor cells resist chemotherapy through the repair of CNU-induced DNA damage. The suicide enzyme O6-methylguanine-DNA methyltransferase (MGMT) removes the precursor DNA lesion O6-chloroethylguanine prior to its conversion into ICL. In cells lacking MGMT, the formed ICL evoke complex enzymatic networks to accomplish their removal. Here we discuss the mechanism of ICL repair as a survival strategy of healthy and cancer cells and DNA damage signaling as a mechanism contributing to CNU-induced cell death. We also discuss therapeutic implications and strategies based on sequential and simultaneous treatment with CNU and the methylating drug temozolomide.
Collapse
Affiliation(s)
- Teodora Nikolova
- Institute of Toxicology, University Medical Center, Obere Zahlbacher Str. 67, D-55131 Mainz, Germany.
| | - Wynand P Roos
- Institute of Toxicology, University Medical Center, Obere Zahlbacher Str. 67, D-55131 Mainz, Germany
| | - Oliver H Krämer
- Institute of Toxicology, University Medical Center, Obere Zahlbacher Str. 67, D-55131 Mainz, Germany
| | - Herwig M Strik
- Department of Neurology, University Medical Center, Baldinger Strasse, 35033 Marburg, Germany
| | - Bernd Kaina
- Institute of Toxicology, University Medical Center, Obere Zahlbacher Str. 67, D-55131 Mainz, Germany.
| |
Collapse
|
47
|
Liu J, Sun L, Xu Q, Tu H, He C, Xing C, Yuan Y. Association of nucleotide excision repair pathway gene polymorphisms with gastric cancer and atrophic gastritis risks. Oncotarget 2016; 7:6972-83. [PMID: 26760766 PMCID: PMC4872762 DOI: 10.18632/oncotarget.6853] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 12/29/2015] [Indexed: 12/14/2022] Open
Abstract
Polymorphisms of NER genes could change NER ability, thereby altering individual susceptibility to GC. We systematically analyzed 39 SNPs of 8 key genes of NER pathway in 2686 subjects including 898 gastric cancer (GC), 851 atrophic gastritis (AG) and 937 controls (CON) in northern Chinese. SNP genotyping were performed using Sequenom MassARRAY platform. The results demonstrated that DDB2 rs830083 GG genotype was significantly associated with increased GC risk compared with wildtype CC (OR=2.32, P = 6.62 × 10−9); XPC rs2607775 CG genotype conferred a 1.73 increased odds of GC risk than non-cancer subjects compared with wild-type CC (OR=1.73, P= 3.04 × 10−4). The combined detection of these two polymorphisms demonstrated even higher GC risk (OR=3.05). Haplotype analysis suggested that DDB2 rs2029298-rs326222-rs3781619-rs830083 GTAG haplotype was significantly associated with disease risk in each step of CON→AG→GC development (AG vs. CON: OR=2.88, P= 7.51 × 10−7; GC vs. AG: OR=2.90, P=5.68 × 10−15; GC vs. CON: OR=8.42, P=2.22 × 10−15); DDB2 GTAC haplotype was associated with reduced risk of GC compared with CON (OR=0.63, P= 8.31 × 10−12). XPC rs1870134-rs2228000- rs2228001-rs2470352-rs2607775 GCAAG haplotype conferred increased risk of GC compared with AG (OR=1.88, P= 6.98 × 10−4). XPA rs2808668 and drinking, DDB2 rs326222, rs3781619, rs830083 and smoking demonstrated significant interactions in AG; XPC rs2607775 had significant interaction with smoking in GC. In conclusion, NER pathway polymorphisms especially in “damage incision” step were significantly associated with GC risk and had interactions with environment factors. The detection of NER pathway polymorphisms such as DDB2 and XPC might be applied in the prediction of GC risk and personalized prevention in the future.
Collapse
Affiliation(s)
- Jingwei Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, China.,Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Liping Sun
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, China.,Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Qian Xu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, China.,Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Huakang Tu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, China.,Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Caiyun He
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, China.,Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Chengzhong Xing
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, China.,Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang 110001, China.,Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang 110001, China
| |
Collapse
|
48
|
Franklin DA, He Y, Leslie PL, Tikunov AP, Fenger N, Macdonald JM, Zhang Y. p53 coordinates DNA repair with nucleotide synthesis by suppressing PFKFB3 expression and promoting the pentose phosphate pathway. Sci Rep 2016; 6:38067. [PMID: 27901115 PMCID: PMC5128917 DOI: 10.1038/srep38067] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 11/04/2016] [Indexed: 01/24/2023] Open
Abstract
Activation of p53 in response to DNA damage is essential for tumor suppression. Although previous studies have emphasized the importance of p53-dependent cell cycle arrest and apoptosis for tumor suppression, recent studies have suggested that other areas of p53 regulation, such as metabolism and DNA damage repair (DDR), are also essential for p53-dependent tumor suppression. However, the intrinsic connections between p53-mediated DDR and metabolic regulation remain incompletely understood. Here, we present data suggesting that p53 promotes nucleotide biosynthesis in response to DNA damage by repressing the expression of the phosphofructokinase-2 (PFK2) isoform 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3), a rate-limiting enzyme that promotes glycolysis. PFKFB3 suppression increases the flux of glucose through the pentose phosphate pathway (PPP) to increase nucleotide production, which results in more efficient DNA damage repair and increased cell survival. Interestingly, although p53-mediated suppression of PFKFB3 could increase the two major PPP products, NADPH and nucleotides, only nucleotide production was essential to promote DDR. By identifying the novel p53 target PFKFB3, we report an important mechanistic connection between p53-regulated metabolism and DDR, both of which play crucial roles in tumor suppression.
Collapse
Affiliation(s)
- Derek A Franklin
- Department of Radiation Oncology and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.,Department of Pharmacology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
| | - Yizhou He
- Department of Radiation Oncology and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.,Curriculum in Genetics and Molecular Biology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
| | - Patrick L Leslie
- Department of Radiation Oncology and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.,Curriculum in Genetics and Molecular Biology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
| | - Andrey P Tikunov
- UNC Metabolomics Laboratory, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
| | - Nick Fenger
- UNC Metabolomics Laboratory, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
| | - Jeffrey M Macdonald
- UNC Metabolomics Laboratory, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
| | - Yanping Zhang
- Department of Radiation Oncology and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.,Department of Pharmacology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA.,Curriculum in Genetics and Molecular Biology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA.,Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical College, Xuzhou, Jiangsu 221002, China
| |
Collapse
|
49
|
Yusein-Myashkova S, Ugrinova I, Pasheva E. Non-histone protein HMGB1 inhibits the repair of damaged DNA by cisplatin in NIH-3T3 murine fibroblasts. BMB Rep 2016; 49:99-104. [PMID: 24325815 PMCID: PMC4915123 DOI: 10.5483/bmbrep.2016.49.2.238] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Indexed: 11/20/2022] Open
Abstract
The nuclear non-histone protein high mobility group box (HMGB) 1 is known to having an inhibitory effect on the repair of DNA damaged by the antitumor drug cisplatin in vitro. To investigate the role of HMGB1 in living cells, we studied the DNA repair of cisplatin damages in mouse fibroblast cell line, NIH-3T3. We evaluated the effect of the post-synthetic acetylation and C-terminal domain of the protein by overexpression of the parental and mutant GFP fused forms of HMGB1. The results revealed that HMGB1 had also an inhibitory effect on the repair of cisplatin damaged DNA in vivo. The silencing of HMGB1 in NIH-3T3 cells increased the cellular DNA repair potential. The increased levels of repair synthesis could be "rescued" and returned to less than normal levels if the knockdown cells were transfected with plasmids encoding HMGB1 and HMGB1 K2A. In this case, the truncated form of HMGB1 also exhibited a slight inhibitory effect. [BMB Reports 2016; 49(2): 99-104].
Collapse
Affiliation(s)
- Shazie Yusein-Myashkova
- Institute of Molecular Biology, Roumen Tsanev, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Iva Ugrinova
- Institute of Molecular Biology, Roumen Tsanev, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Evdokia Pasheva
- Institute of Molecular Biology, Roumen Tsanev, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| |
Collapse
|
50
|
Holcomb N, Goswami M, Han SG, Clark S, Orren DK, Gairola CG, Mellon I. Exposure of Human Lung Cells to Tobacco Smoke Condensate Inhibits the Nucleotide Excision Repair Pathway. PLoS One 2016; 11:e0158858. [PMID: 27391141 PMCID: PMC4938567 DOI: 10.1371/journal.pone.0158858] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 06/22/2016] [Indexed: 12/19/2022] Open
Abstract
Exposure to tobacco smoke is the number one risk factor for lung cancer. Although the DNA damaging properties of tobacco smoke have been well documented, relatively few studies have examined its effect on DNA repair pathways. This is especially true for the nucleotide excision repair (NER) pathway which recognizes and removes many structurally diverse DNA lesions, including those introduced by chemical carcinogens present in tobacco smoke. The aim of the present study was to investigate the effect of tobacco smoke on NER in human lung cells. We studied the effect of cigarette smoke condensate (CSC), a surrogate for tobacco smoke, on the NER pathway in two different human lung cell lines; IMR-90 lung fibroblasts and BEAS-2B bronchial epithelial cells. To measure NER, we employed a slot-blot assay to quantify the introduction and removal of UV light-induced 6–4 photoproducts and cyclobutane pyrimidine dimers. We find a dose-dependent inhibition of 6–4 photoproduct repair in both cell lines treated with CSC. Additionally, the impact of CSC on the abundance of various NER proteins and their respective RNAs was investigated. The abundance of XPC protein, which is required for functional NER, is significantly reduced by treatment with CSC while the abundance of XPA protein, also required for NER, is unaffected. Both XPC and XPA RNA levels are modestly reduced by CSC treatment. Finally, treatment of cells with MG-132 abrogates the reduction in the abundance of XPC protein produced by treatment with CSC, suggesting that CSC enhances proteasome-dependent turnover of the protein that is mediated by ubiquitination. Together, these findings indicate that tobacco smoke can inhibit the same DNA repair pathway that is also essential for the removal of some of the carcinogenic DNA damage introduced by smoke itself, increasing the DNA damage burden of cells exposed to tobacco smoke.
Collapse
Affiliation(s)
- Nathaniel Holcomb
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, Kentucky, United States of America
| | - Mamta Goswami
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, Kentucky, United States of America
| | - Sung Gu Han
- Toxicology Laboratory, Department of Food Science and Biotechnology of Animal Resources, College of Animal Bioscience and Technology, Konkuk University, Seoul, Republic of Korea
| | - Samuel Clark
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, Kentucky, United States of America
| | - David K. Orren
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, Kentucky, United States of America
| | - C. Gary Gairola
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, Kentucky, United States of America
| | - Isabel Mellon
- Department of Toxicology and Cancer Biology, The Markey Cancer Center, University of Kentucky, Lexington, Kentucky, United States of America
- * E-mail:
| |
Collapse
|