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Sahoo D, Deb P, Basu T, Bardhan S, Patra S, Sukul PK. Advancements in platinum-based anticancer drug development: A comprehensive review of strategies, discoveries, and future perspectives. Bioorg Med Chem 2024; 112:117894. [PMID: 39214013 DOI: 10.1016/j.bmc.2024.117894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 08/16/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024]
Abstract
Platinum-based anticancer drugs have been at the forefront of cancer chemotherapy, with cisplatin emerging as a pioneer in the treatment of various malignancies. This review article provides a comprehensive overview of the evolution of platinum-based anticancer therapeutics, focusing on the development of cisplatin, platinum(IV) prodrugs, and the integration of photodynamic therapy (PDT) for enhanced cancer treatment results. The first section of the review delves into the historical context and molecular mechanisms underlying the success of cisplatin, highlighting its DNA binding properties and subsequent interference with cellular processes. Despite its clinical efficacy, the inherent limitations, including dose-dependent toxicities and acquired resistance, accelerated the exploration of novel platinum derivatives. This led to the emergence of platinum(IV) prodrugs, designed to overcome resistance mechanisms and enhance selectivity through targeted drug delivery. The subsequent section provides an in-depth analysis of the principles of design and structural modifications employed in the development of platinum(IV) prodrugs. The transitions to the incorporation of photodynamic therapy (PDT) stands out as a synergistic approach to platinum-based anticancer treatment. The photophysical properties of platinum complexes are discussed in the context of their potential application in PDT, emphasizing on combined cytotoxic effects of platinum-based drugs and light-induced reactive oxygen species generation. This dual-action approach holds great promise for overcoming the limitations of traditional chemotherapy as well as producing superior therapeutic outcomes. Overall, the present report explores the latest developments in the development and use of platinum complexes, highlighting novel strategies such combination treatments, targeted delivery methods, and the generation of multifunctional complexes. It also provides a comprehensive overview of the current landscape while proposing future directions for the development of next-generation platinum-based anticancer therapeutics.
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Affiliation(s)
- Debsankar Sahoo
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Action Area-II, Kadampukur, New Town, Rajarhat, Kolkata 700135, India
| | - Priya Deb
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Action Area-II, Kadampukur, New Town, Rajarhat, Kolkata 700135, India
| | - Tamal Basu
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Action Area-II, Kadampukur, New Town, Rajarhat, Kolkata 700135, India
| | - Srishti Bardhan
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Action Area-II, Kadampukur, New Town, Rajarhat, Kolkata 700135, India
| | - Sayan Patra
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Action Area-II, Kadampukur, New Town, Rajarhat, Kolkata 700135, India
| | - Pradip K Sukul
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Action Area-II, Kadampukur, New Town, Rajarhat, Kolkata 700135, India; Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
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2
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Sharma AK, Giri AK. Engineering CRISPR/Cas9 therapeutics for cancer precision medicine. Front Genet 2024; 15:1309175. [PMID: 38725484 PMCID: PMC11079134 DOI: 10.3389/fgene.2024.1309175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 04/09/2024] [Indexed: 05/12/2024] Open
Abstract
The discovery of Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and CRISPR-associated protein 9 (Cas9) technology has revolutionized field of cancer treatment. This review explores usage of CRISPR/Cas9 for editing and investigating genes involved in human carcinogenesis. It provides insights into the development of CRISPR as a genetic tool. Also, it explores recent developments and tools available in designing CRISPR/Cas9 systems for targeting oncogenic genes for cancer treatment. Further, we delve into an overview of cancer biology, highlighting key genetic alterations and signaling pathways whose deletion prevents malignancies. This fundamental knowledge enables a deeper understanding of how CRISPR/Cas9 can be tailored to address specific genetic aberrations and offer personalized therapeutic approaches. In this review, we showcase studies and preclinical trials that show the utility of CRISPR/Cas9 in disrupting oncogenic targets, modulating tumor microenvironment and increasing the efficiency of available anti treatments. It also provides insight into the use of CRISPR high throughput screens for cancer biomarker identifications and CRISPR based screening for drug discovery. In conclusion, this review offers an overview of exciting developments in engineering CRISPR/Cas9 therapeutics for cancer treatment and highlights the transformative potential of CRISPR for innovation and effective cancer treatments.
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Affiliation(s)
- Aditya Kumar Sharma
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Anil K. Giri
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
- Foundation for the Finnish Cancer Institute, Helsinki, Finland
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3
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Wang J, Liu Q, Zhao Y, Fu J, Su J. Tumor Cells Transmit Drug Resistance via Cisplatin-Induced Extracellular Vesicles. Int J Mol Sci 2023; 24:12347. [PMID: 37569723 PMCID: PMC10418773 DOI: 10.3390/ijms241512347] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 07/29/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Cisplatin is a first-line clinical agent used for treating solid tumors. Cisplatin damages the DNA of tumor cells and induces the production of high levels of reactive oxygen species to achieve tumor killing. Tumor cells have evolved several ways to tolerate this damage. Extracellular vesicles (EVs) are an important mode of information transfer in tumor cells. EVs can be substantially activated under cisplatin treatment and mediate different responses of tumor cells under cisplatin treatment depending on their different cargoes. However, the mechanism of action of tumor-cell-derived EVs under cisplatin treatment and their potential cargoes are still unclear. This review considers recent advances in cisplatin-induced release of EVs from tumor cells, with the expectation of providing a new understanding of the mechanisms of cisplatin treatment and drug resistance, as well as strategies for the combined use of cisplatin and other drugs.
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Affiliation(s)
| | | | | | | | - Jing Su
- Key Laboratory of Pathobiology, Department of Pathophysiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, 126 Xinmin Street, Changchun 130012, China; (J.W.); (Q.L.); (Y.Z.); (J.F.)
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4
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Wang SW, Chang CC, Hsuan CF, Chang TH, Chen YL, Wang YY, Yu TH, Wu CC, Houng JY. Neuroprotective Effect of Abelmoschus manihot Flower Extracts against the H 2O 2-Induced Cytotoxicity, Oxidative Stress and Inflammation in PC12 Cells. Bioengineering (Basel) 2022; 9:bioengineering9100596. [PMID: 36290563 PMCID: PMC9598102 DOI: 10.3390/bioengineering9100596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/12/2022] [Accepted: 10/20/2022] [Indexed: 12/05/2022] Open
Abstract
The progression of neurodegenerative diseases is associated with oxidative stress and inflammatory responses. Abelmoschus manihot L. flower (AMf) has been shown to possess excellent antioxidant and anti-inflammatory activities. This study investigated the protective effect of ethanolic extract (AME), water extract (AMW) and supercritical extract (AMS) of AMf on PC12 neuronal cells under hydrogen peroxide (H2O2) stimulation. This study also explored the molecular mechanism underlying the protective effect of AME, which was the best among the three extracts. The experimental results showed that even at a concentration of 500 μg/mL, neither AME nor AMW showed toxic effects on PC12 cells, while AMS caused about 10% cell death. AME has the most protective effect on apoptosis of PC12 cells stimulated with 0.5 mM H2O2. This is evident by the finding when PC12 cells were treated with 500 μg/mL AME; the viability was restored from 58.7% to 80.6% in the Treatment mode (p < 0.001) and from 59.1% to 98.1% in the Prevention mode (p < 0.001). Under the stimulation of H2O2, AME significantly up-regulated the expression of antioxidant enzymes, such as catalase, glutathione peroxidase and superoxide dismutase; promoted the production of the intracellular antioxidant; reduced glutathione; and reduced ROS generation in PC12 cells. When the acute inflammation was induced under the H2O2 stimulation, AME significantly down-regulated the pro-inflammatory cytokines and mediators (e.g., TNF-α, IL-1β, IL-6, COX-2 and iNOS). AME pretreatment could also greatly promote the production of nucleotide excision repair (NER)-related proteins, which were down-regulated by H2O2. This finding indicates that AME could repair DNA damage caused by oxidative stress. Results from this study demonstrate that AME has the potential to delay the onset and progression of oxidative stress-induced neurodegenerative diseases.
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Affiliation(s)
- Shih-Wei Wang
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, E-Da Hospital, Kaohsiung 82445, Taiwan
| | - Chi-Chang Chang
- School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
- Department of Obstetrics & Gynecology, E-Da Hospital/E-Da Dachang Hospital, Kaohsiung 82445, Taiwan
| | - Chin-Feng Hsuan
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital/E-Da Dachang Hospital/E-Da Cancer Hospital, Kaohsiung 82445, Taiwan
| | - Tzu-Hsien Chang
- Department of Obstetrics & Gynecology, E-Da Hospital/E-Da Dachang Hospital, Kaohsiung 82445, Taiwan
| | - Ya-Ling Chen
- Department of Obstetrics & Gynecology, E-Da Hospital/E-Da Dachang Hospital, Kaohsiung 82445, Taiwan
| | - Yun-Ya Wang
- School of Chinese Medicine for Post-Baccalaureate, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| | - Teng-Hung Yu
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital/E-Da Dachang Hospital/E-Da Cancer Hospital, Kaohsiung 82445, Taiwan
| | - Cheng-Ching Wu
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital/E-Da Dachang Hospital/E-Da Cancer Hospital, Kaohsiung 82445, Taiwan
| | - Jer-Yiing Houng
- Department of Nutrition, I-Shou University, Kaohsiung 82445, Taiwan
- Department of Chemical Engineering, I-Shou University, Kaohsiung 82445, Taiwan
- Correspondence: ; Tel.: +886-7-6151100 (ext. 7915)
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The Role of Nucleotide Excision Repair in Cisplatin-Induced Peripheral Neuropathy: Mechanism, Prevention, and Treatment. Int J Mol Sci 2021; 22:ijms22041975. [PMID: 33671279 PMCID: PMC7921932 DOI: 10.3390/ijms22041975] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 02/06/2023] Open
Abstract
Platinum-based chemotherapy-induced peripheral neuropathy (CIPN) is one of the most common dose-limiting effects of cancer treatment and results in dose reduction and discontinuation of life-saving chemotherapy. Its debilitating effects are often permanent and lead to lifelong impairment of quality of life in cancer patients. While the mechanisms underlying the toxicity are not yet fully defined, dorsal root ganglia sensory neurons play an integral role in symptom development. DNA-platinum adducts accumulate in these cells and inhibit normal cellular function. Nucleotide excision repair (NER) is integral to the repair of platinum adducts, and proteins involved in its mechanism serve as potential targets for future therapeutics. This review aims to highlight NER’s role in cisplatin-induced peripheral neuropathy, summarize current clinical approaches to the toxicity, and discuss future perspectives for the prevention and treatment of CIPN.
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Adaptation to Endoplasmic Reticulum Stress Enhances Resistance of Oral Cancer Cells to Cisplatin by Up-Regulating Polymerase η and Increasing DNA Repair Efficiency. Int J Mol Sci 2020; 22:ijms22010355. [PMID: 33396303 PMCID: PMC7794796 DOI: 10.3390/ijms22010355] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/25/2020] [Accepted: 12/28/2020] [Indexed: 02/07/2023] Open
Abstract
Endoplasmic reticulum (ER) stress response is an adaptive program to cope with cellular stress that disturbs the function and homeostasis of ER, which commonly occurs during cancer progression to late stage. Late-stage cancers, mostly requiring chemotherapy, often develop treatment resistance. Chemoresistance has been linked to ER stress response; however, most of the evidence has come from studies that correlate the expression of stress markers with poor prognosis or demonstrate proapoptosis by the knockdown of stress-responsive genes. Since ER stress in cancers usually persists and is essentially not induced by genetic manipulations, we used low doses of ER stress inducers at levels that allowed cell adaptation to occur in order to investigate the effect of stress response on chemoresistance. We found that prolonged tolerable ER stress promotes mesenchymal-epithelial transition, slows cell-cycle progression, and delays the S-phase exit. Consequently, cisplatin-induced apoptosis was significantly decreased in stress-adapted cells, implying their acquisition of cisplatin resistance. Molecularly, we found that proliferating cell nuclear antigen (PCNA) ubiquitination and the expression of polymerase η, the main polymerase responsible for translesion synthesis across cisplatin-DNA damage, were up-regulated in ER stress-adaptive cells, and their enhanced cisplatin resistance was abrogated by the knockout of polymerase η. We also found that a fraction of p53 in stress-adapted cells was translocated to the nucleus, and that these cells exhibited a significant decline in the level of cisplatin-DNA damage. Consistently, we showed that the nuclear p53 coincided with strong positivity of glucose-related protein 78 (GRP78) on immunostaining of clinical biopsies, and the cisplatin-based chemotherapy was less effective for patients with high levels of ER stress. Taken together, this study uncovers that adaptation to ER stress enhances DNA repair and damage tolerance, with which stressed cells gain resistance to chemotherapeutics.
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Liu Y, Wang X, Li W, Xu Y, Zhuo Y, Li M, He Y, Wang X, Guo Q, Zhao L, Qiang L. Oroxylin A reverses hypoxia-induced cisplatin resistance through inhibiting HIF-1α mediated XPC transcription. Oncogene 2020; 39:6893-6905. [PMID: 32978517 DOI: 10.1038/s41388-020-01474-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 09/04/2020] [Accepted: 09/15/2020] [Indexed: 12/20/2022]
Abstract
Hypoxia is a key concern during the treatment of non-small cell lung cancer (NSCLC), and hypoxia-inducible factor 1 alpha (HIF-1α) has been associated with increased tumor resistance to therapeutic modalities such as cisplatin. Compensatory activation of nucleotide excision repair (NER) pathway is the major mechanism that accounts for cisplatin resistance. In the present study, we suggest a novel strategy to improve the treatment of NSCLC and overcome the hypoxia-induced cisplatin resistance by cotreatment with Oroxylin A, one of the main bioactive flavonoids of Scutellariae radix. Based on the preliminary screening, we found that xeroderma pigmentosum group C (XPC), an important DNA damage recognition protein involved in NER, dramatically increased in hypoxic condition and contributed to hypoxia-induced cisplatin resistance. Further data suggested that Oroxylin A significantly reversed the hypoxia-induced cisplatin resistance through directly binding to HIF-1α bHLH-PAS domain and blocking its binding to HRE3 transcription factor binding sites on XPC promoter which is important to hypoxia-induced XPC transcription. Taken together, our findings not only demonstrate a crucial role of XPC dependent NER in hypoxia-induced cisplatin resistance, but also suggest a previously unrecognized tumor suppressive mechanism of Oroxylin A in NSCLC which through sensitization of cisplatin-mediated growth inhibition and apoptosis under hypoxia.
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Affiliation(s)
- Yunyao Liu
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiaoping Wang
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Wenshu Li
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yujiao Xu
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yating Zhuo
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Mengyuan Li
- Biomedical Informatics Research Lab, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yuan He
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiaosheng Wang
- Biomedical Informatics Research Lab, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Qinglong Guo
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Li Zhao
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China.
| | - Lei Qiang
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China.
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8
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Meier B, Volkova NV, Gerstung M, Gartner A. Analysis of mutational signatures in C. elegans: Implications for cancer genome analysis. DNA Repair (Amst) 2020; 95:102957. [PMID: 32980770 DOI: 10.1016/j.dnarep.2020.102957] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/19/2020] [Accepted: 08/22/2020] [Indexed: 01/02/2023]
Abstract
Genome integrity is constantly challenged by exogenous and endogenous insults, and mutations are associated with inherited disease and cancer. Here we summarize recent studies that utilized C. elegans whole genome next generation sequencing to experimentally determine mutational signatures associated with mutagen exposure, DNA repair deficiency or a combination of both and discuss the implications of these results for the understanding of cancer genome evolution. The experimental analysis of wild-type and DNA repair deficient nematodes propagated under unchallenged conditions over many generations revealed increased mutagenesis in approximately half of all DNA repair deficient strains, its rate, except for DNA mismatch repair, only being moderately increased. The exposure of wild-type and DNA repair defective strains to selected genotoxins, including UV-B and ionizing radiation, alkylating compounds, aristolochic acid, aflatoxin-B1, and cisplatin enabled the systematic analysis of the relative contributions of redundant repair modalities that mend DNA damage. Combining genotoxin exposure with DNA repair deficiency can manifest as altered mutation rates and/or as a change in mutational profiles, and reveals how different DNA alterations induced by one genotoxin are repaired by separate DNA repair pathways, often in a highly redundant way. Cancer genomes provide a snapshot of all mutational events that happened prior to cancer detection and sequencing, necessitating computational models to deduce mutational signatures using mathematical best fit approaches. While computationally deducing signatures from cancer genomes has been tremendously successful in associating some signatures to known mutagenic causes, many inferred signatures lack a clear link to a known mutagenic process. Moreover, analytical signatures might not reflect any distinct mutagenic processes. Nonetheless, combined effects of mutagen exposure and DNA damage-repair deficiency are also present in cancer genomes, but cannot be as easily detected owing to the unknown histories of genotoxic exposures and because biallelic in contrast to monoallelic DNA repair deficiency is rare. The impact of damage-repair interactions also manifests through selective pressure for DNA repair gene inactivation during cancer evolution. Using these considerations, we discuss a theoretical framework that explains why minute mutagenic changes, possibly too small to manifest as change in a signature, can have major effects in oncogenesis. Overall, the experimental analysis of mutational processes underscores that the interpretation of mutational signatures requires considering both the primary DNA lesion and repair status and imply that mutational signatures derived from cancer genomes may be more variable than currently anticipated.
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Affiliation(s)
- Bettina Meier
- Centre for Gene Regulation and Expression, University of Dundee, Scotland, UK
| | - Nadezda V Volkova
- European Molecular Biology Laboratory, European Bioinformatics Institute, Hinxton, UK
| | - Moritz Gerstung
- European Molecular Biology Laboratory, European Bioinformatics Institute, Hinxton, UK; European Molecular Biology Laboratory, Genome Biology Unit, Heidelberg, Germany
| | - Anton Gartner
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea; Center for Genomic Integrity, Institute for Basic Science, Ulsan, Republic of Korea.
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Zhang M, Du W, Acklin S, Jin S, Xia F. SIRT2 protects peripheral neurons from cisplatin-induced injury by enhancing nucleotide excision repair. J Clin Invest 2020; 130:2953-2965. [PMID: 32134743 PMCID: PMC7260000 DOI: 10.1172/jci123159] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 02/26/2020] [Indexed: 01/01/2023] Open
Abstract
Platinum-based chemotherapy-induced peripheral neuropathy is one of the most common causes of dose reduction and discontinuation of life-saving chemotherapy in cancer treatment; it often causes permanent impairment of quality of life in cancer patients. The mechanisms that underlie this neuropathy are not defined, and effective treatment and prevention measures are not available. Here, we demonstrate that SIRT2 protected mice against cisplatin-induced peripheral neuropathy (CIPN). SIRT2 accumulated in the nuclei of dorsal root ganglion sensory neurons and prevented neuronal cell death following cisplatin treatment. Mechanistically, SIRT2, an NAD+-dependent deacetylase, protected neurons from cisplatin cytotoxicity by promoting transcription-coupled nucleotide excision repair (TC-NER) of cisplatin-induced DNA cross-links. Consistent with this mechanism, pharmacological inhibition of NER using spironolactone abolished SIRT2-mediated TC-NER activity in differentiated neuronal cells and protection of neurons from cisplatin-induced cytotoxicity and CIPN in mice. Importantly, SIRT2's protective effects were not evident in lung cancer cells in vitro or in tumors in vivo. Taken together, our results identified SIRT2's function in the NER pathway as a key underlying mechanism of preventing CIPN, warranting future investigation of SIRT2 activation-mediated neuroprotection during platinum-based cancer treatment.
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10
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Wang C, Zhou Z, Subhramanyam CS, Cao Q, Heng ZSL, Liu W, Fu X, Hu Q. SRPK1 acetylation modulates alternative splicing to regulate cisplatin resistance in breast cancer cells. Commun Biol 2020; 3:268. [PMID: 32461560 PMCID: PMC7253463 DOI: 10.1038/s42003-020-0983-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 05/04/2020] [Indexed: 12/22/2022] Open
Abstract
Cisplatin and other platinum-based compounds are frequently used to treat breast cancer, but their utility is severely compromised by drug resistance. Many genes dictating drug responsiveness are subject to pre-mRNA alternative splicing which is regulated by key kinases such as the serine-arginine protein kinase 1 (SRPK1). However, its contribution to drug resistance remains controversial. In this study, we have identified that Tip60-mediated acetylation of SRPK1 is closely associated with chemotherapy sensitivity. In breast cancer cells, cisplatin induced SRPK1 acetylation but in the corresponding resistant cells, it reduced acetylation yet increased phosphorylation and kinase activity of SRPK1, favouring the splicing of some anti-apoptotic variants. Significantly, the cisplatin-resistant cells could be re-sensitized by enhancing SRPK1 acetylation or inhibiting its kinase activity. Hence, our study reveals a key role of SRPK1 in the development of cisplatin resistance in breast cancer cells and suggests a potential therapeutic avenue for overcoming chemotherapy resistance. Wang et al. find that the therapeutic agent cisplatin has opposite effect on acetylation of serine-arginine protein kinase 1 (SRPK1) in cisplatin-resistant versus – sensitive breast cancer cells. Inhibiting SRPK1 activity or enhancing its acetylation re-sensitises cells to cisplatin, suggesting a potential strategy to treat cancers resistant to platinum-based therapy.
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Affiliation(s)
- Cheng Wang
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, 4 Medical Drive, Singapore, Singapore, 117594
| | - Zhihong Zhou
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 2 Medical Drive, Singapore, Singapore, 117593
| | | | - Qiong Cao
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, 4 Medical Drive, Singapore, Singapore, 117594
| | - Zealyn Shi Lin Heng
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, 4 Medical Drive, Singapore, Singapore, 117594
| | - Wen Liu
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen University, Xiang'an South Road, Xiamen, Fujian, 361102, China
| | - Xiangdong Fu
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0651, USA
| | - Qidong Hu
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, 4 Medical Drive, Singapore, Singapore, 117594.
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Singh R, Fazal Z, Freemantle SJ, Spinella MJ. Mechanisms of cisplatin sensitivity and resistance in testicular germ cell tumors. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2019; 2:580-594. [PMID: 31538140 PMCID: PMC6752046 DOI: 10.20517/cdr.2019.19] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Testicular germ cell tumors (TGCTs) are a cancer pharmacology success story with a majority of patients cured even in the highly advanced and metastatic setting. Successful treatment of TGCTs is primarily due to the exquisite responsiveness of this solid tumor to cisplatin-based therapy. However, a significant percentage of patients are, or become, refractory to cisplatin and die from progressive disease. Mechanisms for both clinical hypersensitivity and resistance have largely remained a mystery despite the promise of applying lessons to the majority of solid tumors that are not curable in the metastatic setting. Recently, this promise has been heightened by the realization that distinct (and perhaps pharmacologically replicable) epigenetic states, rather than fixed genetic alterations, may play dominant roles in not only TGCT etiology and progression but also their curability with conventional chemotherapies. In this review, it discusses potential mechanisms of TGCT cisplatin sensitivity and resistance to conventional chemotherapeutics.
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Affiliation(s)
- Ratnakar Singh
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Zeeshan Fazal
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Sarah J Freemantle
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Michael J Spinella
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.,The Carle Illinois College of Medicine , University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.,The Cancer Center of Illinois, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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12
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Li C, Wong JTY. DNA Damage Response Pathways in Dinoflagellates. Microorganisms 2019; 7:E191. [PMID: 31284474 PMCID: PMC6680887 DOI: 10.3390/microorganisms7070191] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/29/2019] [Accepted: 07/01/2019] [Indexed: 12/17/2022] Open
Abstract
Dinoflagellates are a general group of phytoplankton, ubiquitous in aquatic environments. Most dinoflagellates are non-obligate autotrophs, subjected to potential physical and chemical DNA-damaging agents, including UV irradiation, in the euphotic zone. Delay of cell cycles by irradiation, as part of DNA damage responses (DDRs), could potentially lead to growth inhibition, contributing to major errors in the estimation of primary productivity and interpretations of photo-inhibition. Their liquid crystalline chromosomes (LCCs) have large amount of abnormal bases, restricted placement of coding sequences at the chromosomes periphery, and tandem repeat-encoded genes. These chromosome characteristics, their large genome sizes, as well as the lack of architectural nucleosomes, likely contribute to possible differential responses to DNA damage agents. In this study, we sought potential dinoflagellate orthologues of eukaryotic DNA damage repair pathways, and the linking pathway with cell-cycle control in three dinoflagellate species. It appeared that major orthologues in photoreactivation, base excision repair, nucleotide excision repair, mismatch repair, double-strand break repair and homologous recombination repair are well represented in dinoflagellate genomes. Future studies should address possible differential DNA damage responses of dinoflagellates over other planktonic groups, especially in relation to possible shift of life-cycle transitions in responses to UV irradiation. This may have a potential role in the persistence of dinoflagellate red tides with the advent of climatic change.
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Affiliation(s)
- Chongping Li
- Department of Ocean Science, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China.
- Division of Life Science, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China.
| | - Joseph Tin Yum Wong
- Division of Life Science, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China.
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13
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Lv WL, Arnesano F, Carloni P, Natile G, Rossetti G. Effect of in vivo post-translational modifications of the HMGB1 protein upon binding to platinated DNA: a molecular simulation study. Nucleic Acids Res 2019; 46:11687-11697. [PMID: 30407547 PMCID: PMC6294504 DOI: 10.1093/nar/gky1082] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 10/19/2018] [Indexed: 12/26/2022] Open
Abstract
Cisplatin is one of the most widely used anticancer drugs. Its efficiency is unfortunately severely hampered by resistance. The High Mobility Group Box (HMGB) proteins may sensitize tumor cells to cisplatin by specifically binding to platinated DNA (PtDNA) lesions. In vivo, the HMGB/PtDNA binding is regulated by multisite post-translational modifications (PTMs). The impact of PTMs on the HMGB/PtDNA complex at atomistic level is here investigated by enhanced sampling molecular simulations. The PTMs turn out to affect the structure of the complex, the mobility of several regions (including the platinated site), and the nature of the protein/PtDNA non-covalent interactions. Overall, the multisite PTMs increase significantly the apparent synchrony of all the contacts between the protein and PtDNA. Consequently, the hydrophobic anchoring of the side chain of F37 between the two cross-linked guanines at the platinated site-a key element of the complexes formation - is more stable than in the complex without PTM. These differences can account for the experimentally measured greater affinity for PtDNA of the protein isoforms with PTMs. The collective behavior of multisite PTMs, as revealed here by the synchrony of contacts, may have a general significance for the modulation of intermolecular recognitions occurring in vivo.
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Affiliation(s)
- Wenping Lyu Lv
- Computational Biomedicine, Institute for Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich, 52425 Jülich, Germany.,Faculty of Mathematics, Computer Science and Natural Sciences, RWTH-Aachen University, 52056 Aachen, Germany.,Computation-Based Science and Technology Research Center, Cyprus Institute, 2121 Aglantzia, Nicosia, Cyprus
| | - Fabio Arnesano
- Department of Chemistry, University of Bari "A. Moro", via Edoardo Orabona 4, 70125 Bari, Italy
| | - Paolo Carloni
- Computational Biomedicine, Institute for Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Giovanni Natile
- Department of Chemistry, University of Bari "A. Moro", via Edoardo Orabona 4, 70125 Bari, Italy
| | - Giulia Rossetti
- Computational Biomedicine, Institute for Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich, 52425 Jülich, Germany.,Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, 52062 Aachen, Germany.,Jülich Supercomputing Centre (JSC), Forschungszentrum Jülich, 52425 Jülich, Germany
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14
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Ghosh S. Cisplatin: The first metal based anticancer drug. Bioorg Chem 2019; 88:102925. [PMID: 31003078 DOI: 10.1016/j.bioorg.2019.102925] [Citation(s) in RCA: 919] [Impact Index Per Article: 183.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 03/30/2019] [Accepted: 04/10/2019] [Indexed: 12/17/2022]
Abstract
Cisplatin or (SP-4-2)-diamminedichloridoplatinum(II) is one of the most potential and widely used drugs for the treatment of various solid cancers such as testicular, ovarian, head and neck, bladder, lung, cervical cancer, melanoma, lymphomas and several others. Cisplatin exerts anticancer activity via multiple mechanisms but its most acceptable mechanism involves generation of DNA lesions by interacting with purine bases on DNA followed by activation of several signal transduction pathways which finally lead to apoptosis. However, side effects and drug resistance are the two inherent challenges of cisplatin which limit its application and effectiveness. Reduction of drug accumulation inside cancer cells, inactivation of drug by reacting with glutathione and metallothioneins and faster repairing of DNA lesions are responsible for cisplatin resistance. To minimize cisplatin side effects and resistance, combination therapies are used and have proven more effective to defect cancers. This article highlights a systematic description on cisplatin which includes a brief history, synthesis, action mechanism, resistance, uses, side effects and modulation of side effects. It also briefly describes development of platinum drugs from very small cisplatin complex to very large next generation nanocarriers conjugated platinum complexes.
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Affiliation(s)
- Sumit Ghosh
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India.
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15
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Mullenders LHF. Solar UV damage to cellular DNA: from mechanisms to biological effects. Photochem Photobiol Sci 2018; 17:1842-1852. [PMID: 30065996 DOI: 10.1039/c8pp00182k] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Solar ultraviolet (UV) radiation generates bulky photodimers at di-pyrimidine sites that pose stress to cells and organisms by hindering DNA replication and transcription. In addition, solar UV also induces various types of oxidative DNA lesions and single strand DNA breaks. Relieving toxicity and maintenance of genomic integrity are of clinical importance in relation to erythema/edema and diseases such as cancer, neurodegeneration and premature ageing, respectively. Following solar UV radiation, a network of DNA damage response mechanisms triggers a signal transduction cascade to regulate various genome-protection pathways including DNA damage repair, cell cycle control, apoptosis, transcription and chromatin remodeling. The effects of UVC and UVB radiation on cellular DNA are predominantly accounted for by the formation of photodimers at di-pyrimidine sites. These photodimers are mutagenic: UVC, UVB and also UVA radiation induce a broadly similar pattern of transition mutations at di-pyrimidine sites. The mutagenic potency of solar UV is counteracted by efficient repair of photodimers involving global genome nucleotide excision repair (GG-NER) and transcription-coupled nucleotide excision repair (TC-NER); the latter is a specialized repair pathway to remove transcription-blocking photodimers and restore UV-inhibited transcription. On the molecular level these processes are facilitated and regulated by various post-translational modifications of NER factors and the chromatin substrate. Inherited defects in NER are manifested in different diseases including xeroderma pigmentosum (XP), Cockayne syndrome (CS), UV sensitive syndrome (UVsS) and the photosensitive form of trichothiodystrophy (TTD). XP patients are prone to sunlight-induced skin cancer. UVB irradiated XP and CS knockout mouse models unveiled that only TC-NER counteracts erythema/edema, whereas both GG-NER and TC-NER protect against UVB-induced cancer. Additionally, UVA radiation induces mutations characterized by oxidation-linked signature at non-di-pyrimidine sites. The biological relevance of oxidation damage is demonstrated by the cancer susceptibility of UVB-irradiated mice deficient in repair of oxidation damage, i.e., 8-oxoguanine.
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Replication Protein A Availability during DNA Replication Stress Is a Major Determinant of Cisplatin Resistance in Ovarian Cancer Cells. Cancer Res 2018; 78:5561-5573. [DOI: 10.1158/0008-5472.can-18-0618] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 06/11/2018] [Accepted: 07/27/2018] [Indexed: 11/16/2022]
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17
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The association of polymorphisms in nucleotide excision repair genes with ovarian cancer susceptibility. Biosci Rep 2018; 38:BSR20180114. [PMID: 29669843 PMCID: PMC6013708 DOI: 10.1042/bsr20180114] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/09/2018] [Accepted: 04/18/2018] [Indexed: 11/21/2022] Open
Abstract
Nucleotide excision repair (NER), the core mechanism of DNA repair pathway, was commonly used to maintain genomic stability and prevent tumorigenesis. Previous investigations have demonstrated that single nucleotide polymorphisms (SNPs) of NER pathway genes were associated with various types of cancer. However, there was no research elucidating the genetic association of entire NER pathway with ovarian cancer susceptibility. Therefore, we conducted genotyping for 17 SNPs of six NER core genes (XPA, XPC, XPG, ERCC1, ERCC2, and ERCC4) in 89 ovarian cancer cases and 356 cancer-free controls. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to describe the strength of association. The result showed that both ERCC1 rs11615 and XPC rs2228000 were significantly associated with reduced risk of ovarian cancer under dominant genetic model (adjusted OR = 0.35, 95% CI = 0.20–0.61, P=0.0002 and adjusted OR = 0.49, 95% CI = 0.30–0.81, P=0.005 respectively). In addition, XPC rs2228001 and ERCC2 rs238406 had statistically significant association with the increased risk of ovarian cancer under dominant genetic model (adjusted OR = 1.72, 95% CI = 1.02–2.92, P=0.043 and adjusted OR = 2.07, 95% CI = 1.07–4.01, P=0.032 respectively). ERCC1 rs3212986 were related with the increased risk of ovarian cancer under recessive model (adjusted OR = 2.40, 95% CI = 1.30–4.44, P=0.005). In conclusion, our results indicated that ERCC1, XPC and ERCC2 might influence ovarian cancer susceptibility. Further research with large sample size is warranted to validate the reliability and accuracy of our results.
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Ikeoka S, Nakahara T, Iwahashi H, Mizushina Y. The Establishment of an Assay to Measure DNA Polymerase-Catalyzed Repair of UVB-Induced DNA Damage in Skin Cells and Screening of DNA Polymerase Enhancers from Medicinal Plants. Int J Mol Sci 2016; 17:ijms17050667. [PMID: 27153062 PMCID: PMC4881493 DOI: 10.3390/ijms17050667] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 04/05/2016] [Accepted: 04/25/2016] [Indexed: 11/20/2022] Open
Abstract
An in vitro assay method was established to measure the activity of cellular DNA polymerases (Pols) in cultured normal human epidermal keratinocytes (NHEKs) by modifying Pol inhibitor activity. Ultraviolet (UV) irradiation enhanced the activity of Pols, especially DNA repair-related Pols, in the cell extracts of NHEKs. The optimal ultraviolet B (UVB) exposure dose and culture time to upregulate Pols activity was 100 mJ/cm2 and 4-h incubation, respectively. We screened eight extracts of medicinal plants for enhancement of UVB-exposed cellular Pols activity using NHEKs, and found that rose myrtle was the strongest Pols enhancer. A Pols’ enhancement compound was purified from an 80% ethanol extract of rose myrtle, and piceatannol was isolated by spectroscopic analysis. Induction of Pol activity involved synergy between UVB irradiation and rose myrtle extract and/or piceatannol. Both the extract and piceatannol reduced UVB-induced cyclobutane pyrimidine dimer production, and prevented UVB-induced cytotoxicity. These results indicate that rose myrtle extract and piceatannol, its component, are potential photo-protective candidates for UV-induced skin damage.
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Affiliation(s)
- Sawako Ikeoka
- Research Center, Maruzen Pharmaceuticals Co., Ltd., Onomichi, Hiroshima 722-0062, Japan.
| | - Tatsuo Nakahara
- Research Center, Maruzen Pharmaceuticals Co., Ltd., Onomichi, Hiroshima 722-0062, Japan.
| | - Hiroyasu Iwahashi
- Research Center, Maruzen Pharmaceuticals Co., Ltd., Onomichi, Hiroshima 722-0062, Japan.
| | - Yoshiyuki Mizushina
- Graduate School of Agriculture, Shinshu University, Minamiminowa-mura, Kamiina-gun, Nagano 399-4598, Japan.
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Van Houten B. A tale of two cities: A tribute to Aziz Sancar's Nobel Prize in Chemistry for his molecular characterization of NER. DNA Repair (Amst) 2016; 37:A3-A13. [PMID: 26861185 PMCID: PMC5068483 DOI: 10.1016/j.dnarep.2015.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Bennett Van Houten
- Department of Pharmacology and Chemical Biology, University of Pittsburgh Cancer Institute, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, United States.
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20
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Tripartite DNA Lesion Recognition and Verification by XPC, TFIIH, and XPA in Nucleotide Excision Repair. Mol Cell 2015; 59:1025-34. [PMID: 26384665 DOI: 10.1016/j.molcel.2015.08.012] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 07/09/2015] [Accepted: 08/17/2015] [Indexed: 11/23/2022]
Abstract
Transcription factor IIH (TFIIH) is essential for both transcription and nucleotide excision repair (NER). DNA lesions are initially detected by NER factors XPC and XPE or stalled RNA polymerases, but only bulky lesions are preferentially repaired by NER. To elucidate substrate specificity in NER, we have prepared homogeneous human ten-subunit TFIIH and its seven-subunit core (Core7) without the CAK module and show that bulky lesions in DNA inhibit the ATPase and helicase activities of both XPB and XPD in Core7 to promote NER, whereas non-genuine NER substrates have no such effect. Moreover, the NER factor XPA activates unwinding of normal DNA by Core7, but inhibits the Core7 helicase activity in the presence of bulky lesions. Finally, the CAK module inhibits DNA binding by TFIIH and thereby enhances XPC-dependent specific recruitment of TFIIH. Our results support a tripartite lesion verification mechanism involving XPC, TFIIH, and XPA for efficient NER.
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21
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Ucisik MN, Hammes-Schiffer S. Comparative Molecular Dynamics Studies of Human DNA Polymerase η. J Chem Inf Model 2015; 55:2672-81. [PMID: 26562587 PMCID: PMC4696480 DOI: 10.1021/acs.jcim.5b00606] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
High-energy
ultraviolet radiation damages DNA through the formation
of cyclobutane pyrimidine dimers, which stall replication. When the
lesion is a thymine–thymine dimer (TTD), human DNA polymerase
η (Pol η) assists in resuming the replication process
by inserting nucleotides opposite the damaged site. We performed extensive
molecular dynamics (MD) simulations to investigate the structural
and dynamical effects of four different Pol η complexes with
or without a TTD and with either dATP or dGTP as the incoming base.
No major differences in the overall structures and equilibrium dynamics
were detected among the four systems, suggesting that the specificity
of this enzyme is due predominantly to differences in local interactions
in the binding regions. Analysis of the hydrogen-bonding interactions
between the enzyme and the DNA and dNTP provided molecular-level insights.
Specifically, the TTD was observed to engage in more hydrogen-bonding
interactions with the enzyme than its undamaged counterpart of two
normal thymines. The resulting greater rigidity and specific orientation
of the TTD are consistent with the experimental observation of higher
processivity and overall efficiency at TTD sites than at analogous
sites with two normal thymines. The similarities between the systems
containing dATP and dGTP are consistent with the experimental observation
of relatively low fidelity with respect to the incoming base. Moreover,
Q38 and R61, two strictly conserved amino acids across the Pol η
family, were found to exhibit persistent hydrogen-bonding interactions
with the TTD and cation-π interactions with the free base, respectively.
Thus, these simulations provide molecular level insights into the
basis for the selectivity and efficiency of this enzyme, as well as
the roles of the two most strictly conserved residues.
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Affiliation(s)
- Melek N Ucisik
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801-3364, United States
| | - Sharon Hammes-Schiffer
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801-3364, United States
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22
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Chen S, Zhu JH, Wang F, Huang SY, Xue WQ, Cui Z, He J, Jia WH. Association of the Asp312Asn and Lys751Gln polymorphisms in the XPD gene with the risk of non-Hodgkin's lymphoma: evidence from a meta-analysis. CHINESE JOURNAL OF CANCER 2015; 34:108-14. [PMID: 25962431 PMCID: PMC4593373 DOI: 10.1186/s40880-015-0001-2] [Citation(s) in RCA: 308] [Impact Index Per Article: 34.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 11/25/2014] [Indexed: 02/07/2023]
Abstract
Polymorphisms in DNA repair genes may alter DNA repair capacity and, consequently, lead to genetic instability and carcinogenesis. Several studies have investigated the association of the Asp312Asn and Lys751Gln polymorphisms in the xeroderma pigmentosum complementation group D (XPD) gene with the risk of non-Hodgkin's lymphoma (NHL), but the conclusions have been inconsistent. Therefore, we performed this meta-analysis to more precisely estimate these relationships. A systematic literature search was performed using the PubMed, Embase, and Chinese Biomedical (CBM) databases. Ultimately, 6 studies of Asp312Asn, comprising 3,095 cases and 3,306 controls, and 7 studies of Lys751Gln, consisting of 3,249 cases and 3,676 controls, were included. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to assess the strength of each association. Overall, no association was observed between the Asp312Asn polymorphism and NHL risk (homozygous: OR = 1.11, 95% CI = 0.94-1.32; heterozygous: OR = 1.00, 95% CI = 0.89-1.11; recessive: OR = 1.12, 95% CI = 0.95-1.31; dominant: OR = 1.02, 95% CI = 0.92-1.13; and allele comparison: OR = 1.04, 95% CI = 0.96-1.12) or between the Lys751Gln polymorphism and NHL risk (homozygous: OR = 0.97, 95% CI = 0.83-1.15; heterozygous: OR = 0.96, 95% CI = 0.86-1.06; recessive: OR = 1.00, 95% CI = 0.86-1.16; dominant: OR = 0.96, 95% CI = 0.87-1.06; and allele comparison: OR = 0.98, 95% CI = 0.91-1.05). Furthermore, subgroup analyses did not reveal any association between these polymorphisms and ethnicity, the source of the controls, or the NHL subtype. These results indicated that neither the Asp312Asn nor Lys751Gln XPD polymorphism was related to NHL risk. Large and well-designed prospective studies are required to confirm this finding.
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Affiliation(s)
- Shen Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Experimental Research, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, P. R. China.
| | - Jin-Hong Zhu
- Molecular Epidemiology Lab and Laboratory Medicine, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150040, P. R. China.
| | - Fang Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Experimental Research, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, P. R. China.
| | - Shao-Yi Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Experimental Research, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, P. R. China.
| | - Wen-Qiong Xue
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Experimental Research, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, P. R. China.
| | - Zhuo Cui
- Department of Statistics, University of California, Berkeley, CA, 94702, USA.
| | - Jing He
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Experimental Research, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, P. R. China.
| | - Wei-Hua Jia
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Experimental Research, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, P. R. China.
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Yang W. An overview of Y-Family DNA polymerases and a case study of human DNA polymerase η. Biochemistry 2014; 53:2793-803. [PMID: 24716551 PMCID: PMC4018060 DOI: 10.1021/bi500019s] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
![]()
Y-Family
DNA polymerases specialize in translesion synthesis, bypassing
damaged bases that would otherwise block the normal progression of
replication forks. Y-Family polymerases have unique structural features
that allow them to bind damaged DNA and use a modified template base
to direct nucleotide incorporation. Each Y-Family polymerase is unique
and has different preferences for lesions to bypass and for dNTPs
to incorporate. Y-Family polymerases are also characterized by a low
catalytic efficiency, a low processivity, and a low fidelity on normal
DNA. Recruitment of these specialized polymerases to replication forks
is therefore regulated. The catalytic center of the Y-Family polymerases
is highly conserved and homologous to that of high-fidelity and high-processivity
DNA replicases. In this review, structural differences between Y-Family
and A- and B-Family polymerases are compared and correlated with their
functional differences. A time-resolved X-ray crystallographic study
of the DNA synthesis reaction catalyzed by the Y-Family DNA polymerase
human polymerase η revealed transient elements that led to the
nucleotidyl-transfer reaction.
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Affiliation(s)
- Wei Yang
- Laboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health , Bethesda, Maryland 20892, United States
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Wurz GT, DeGregorio MW. Activating adaptive cellular mechanisms of resistance following sublethal cytotoxic chemotherapy: implications for diagnostic microdosing. Int J Cancer 2014; 136:1485-93. [PMID: 24510760 DOI: 10.1002/ijc.28773] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 01/30/2014] [Indexed: 11/07/2022]
Abstract
As Phase 0 studies have proven to be reasonably predictive of therapeutic dose pharmacokinetics, the application of microdosing has expanded into metabolism, drug-drug interactions and now diagnostics. One potentially serious issue with this application of microdosing that has not been previously discussed is the possibility of activating cellular mechanisms of drug resistance. Here, we provide an overview of Phase 0 microdosing and drug resistance, with an emphasis on cisplatin resistance, followed by a discussion of the potential for inducing acquired resistance to platinum-based or other types of chemotherapy in cancer patients participating in Phase 0 diagnostic microdosing studies. A number of alternative approaches to diagnostic microdosing, such as the human tumor cloning assay and the use of peripheral blood mononuclear cells as a surrogate for measuring DNA adducts, are discussed that would avoid exposing cancer patients to low doses of first-line chemotherapy and the possible risk of triggering cellular mechanisms of acquired resistance. Until it has been established that diagnostic microdosing in cancer patients poses no risk of acquired drug resistance, such studies should be approached with caution.
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Affiliation(s)
- Gregory T Wurz
- Division of Hematology and Oncology Department of Internal Medicine, University of California, Davis, Sacramento, CA
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25
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Galluzzi L, Senovilla L, Vitale I, Michels J, Martins I, Kepp O, Castedo M, Kroemer G. Molecular mechanisms of cisplatin resistance. Oncogene 2011; 31:1869-83. [PMID: 21892204 DOI: 10.1038/onc.2011.384] [Citation(s) in RCA: 1894] [Impact Index Per Article: 145.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Platinum-based drugs, and in particular cis-diamminedichloroplatinum(II) (best known as cisplatin), are employed for the treatment of a wide array of solid malignancies, including testicular, ovarian, head and neck, colorectal, bladder and lung cancers. Cisplatin exerts anticancer effects via multiple mechanisms, yet its most prominent (and best understood) mode of action involves the generation of DNA lesions followed by the activation of the DNA damage response and the induction of mitochondrial apoptosis. Despite a consistent rate of initial responses, cisplatin treatment often results in the development of chemoresistance, leading to therapeutic failure. An intense research has been conducted during the past 30 years and several mechanisms that account for the cisplatin-resistant phenotype of tumor cells have been described. Here, we provide a systematic discussion of these mechanism by classifying them in alterations (1) that involve steps preceding the binding of cisplatin to DNA (pre-target resistance), (2) that directly relate to DNA-cisplatin adducts (on-target resistance), (3) concerning the lethal signaling pathway(s) elicited by cisplatin-mediated DNA damage (post-target resistance) and (4) affecting molecular circuitries that do not present obvious links with cisplatin-elicited signals (off-target resistance). As in some clinical settings cisplatin constitutes the major therapeutic option, the development of chemosensitization strategies constitute a goal with important clinical implications.
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Affiliation(s)
- L Galluzzi
- INSERM, U848 Apoptosis, Cancer and Immunity, Villejuif, France
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26
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Abstract
The discovery of human DNA polymerase eta (pol η) has a major impact on the fields of DNA replication/repair fields. Since the discovery of human pol η, a number of new DNA polymerases with the ability to bypass various DNA lesions have been discovered. Among these polymerases, pol η is the most extensively studied lesion bypass polymerase with a defined major biological function, that is, to replicate across the cyclobutane pyrimidine dimers introduced by UV irradiation. Cyclobutane pyrimidine dimer is a major DNA lesion that causes distortion of DNA structure and block the replicative DNA polymerases during DNA replication process. Genetic defects in the pol η gene, Rad30, results in a disease called xeroderma pigmentosum variant. This review focuses on the overall properties of pol η and the mechanism that involved in regulating its activity in cells. In addition, the role of pol η in the action of DNA-targeting anticancer compounds is also discussed.
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Affiliation(s)
- Kai-ming Chou
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN 46202, USA.
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27
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Castells E, Molinier J, Benvenuto G, Bourbousse C, Zabulon G, Zalc A, Cazzaniga S, Genschik P, Barneche F, Bowler C. The conserved factor DE-ETIOLATED 1 cooperates with CUL4-DDB1DDB2 to maintain genome integrity upon UV stress. EMBO J 2011; 30:1162-72. [PMID: 21304489 DOI: 10.1038/emboj.2011.20] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2010] [Accepted: 01/10/2011] [Indexed: 11/09/2022] Open
Abstract
Plants and many other eukaryotes can make use of two major pathways to cope with mutagenic effects of light, photoreactivation and nucleotide excision repair (NER). While photoreactivation allows direct repair by photolyase enzymes using light energy, NER requires a stepwise mechanism with several protein complexes acting at the levels of lesion detection, DNA incision and resynthesis. Here we investigated the involvement in NER of DE-ETIOLATED 1 (DET1), an evolutionarily conserved factor that associates with components of the ubiquitylation machinery in plants and mammals and acts as a negative repressor of light-driven photomorphogenic development in Arabidopsis. Evidence is provided that plant DET1 acts with CULLIN4-based ubiquitin E3 ligase, and that appropriate dosage of DET1 protein is necessary for efficient removal of UV photoproducts through the NER pathway. Moreover, DET1 is required for CULLIN4-dependent targeted degradation of the UV-lesion recognition factor DDB2. Finally, DET1 protein is degraded concomitantly with DDB2 upon UV irradiation in a CUL4-dependent mechanism. Altogether, these data suggest that DET1 and DDB2 cooperate during the excision repair process.
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Affiliation(s)
- Enric Castells
- Institut de Biologie de l'Ecole Normale Supérieure, Section de Génomique Environnementale et Evolutive, CNRS UMR 8197 INSERM U1021, Paris, France
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Köberle B, Tomicic MT, Usanova S, Kaina B. Cisplatin resistance: Preclinical findings and clinical implications. Biochim Biophys Acta Rev Cancer 2010; 1806:172-82. [PMID: 20647037 DOI: 10.1016/j.bbcan.2010.07.004] [Citation(s) in RCA: 183] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2010] [Revised: 07/07/2010] [Accepted: 07/12/2010] [Indexed: 02/03/2023]
Affiliation(s)
- Beate Köberle
- Institute of Toxicology, University Medical Center Mainz, Germany.
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29
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Long XD, Ma Y, Huang YZ, Yi Y, Liang QX, Ma AM, Zeng LP, Fu GH. Genetic polymorphisms in DNA repair genes XPC, XPD, and XRCC4, and susceptibility to Helicobacter pylori infection-related gastric antrum adenocarcinoma in Guangxi population, China. Mol Carcinog 2010; 49:611-8. [PMID: 20232359 DOI: 10.1002/mc.20630] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Genetic polymorphisms in DNA repair genes may influence individual variation in DNA repair capacity, which may be associated with risk of gastric antrum adenocarcinoma (GAA) related to Helicobacter pylori infection. This study, including 361 GAAs and 616 controls without any evidence of tumors, was designed to evaluate the association between the polymorphisms of DNA repair genes XPC Ala499Val (RS#2228000) and Lys939Gln (RS#2228001), XPD Lys751Gln (RS#13181), and XRCC4 Ala247Ser (RS#3734091) and Ser298Asn (RS#1805377), and GAA risk for Guangxi population by means of TaqMan-PCR analysis. Increased risks of GAA were found for individuals with H. pylori positive [odds ratio (OR), 2.48; 95% confidence interval (CI), 1.84-3.33] or cagA positive (OR, 7.34; 95% CI, 5.46-9.87). No differences were observed among the studied groups with regard to the genotype distribution of XPC codons 499 and 939 and of XRCC4 codon 247; but XPD codon 751 genotypes with Gln [ORs (95% CI) were 2.67 (1.98-3.58) and 3.97 (2.64-5.99) for Lys/Gln and Gln/Gln, respectively] and XRCC4 codon 298 genotypes with Asn [ORs (95% CI) were 3.01 (2.21-4.10) and 4.78 (3.24-7.05) for Ser/Asn and Asn/Asn, respectively] increased the risk of GAA. Interestingly, there was an interactive effect between the risk genotypes of these two genes and cagA-positive status in the GAA risk (OR(interact) = 2.05 and 2.08, respectively). However, we did not find the gene-H. pylori-status interaction effects on the risk of GAA (P(interact) > 0.05). The results suggested that the polymorphisms of XPD codon 751 and XRCC4 codon 298 are associated with an increased risk of developing H. pylori-related GAA among Guangxi population.
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Affiliation(s)
- Xi-Dai Long
- Department of Pathology, Shanghai Jiao Tong University School of Medicine, No. 280 South Chongqing Road, Shanghai, PR China
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30
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Anindya R, Mari PO, Kristensen U, Kool H, Giglia-Mari G, Mullenders LH, Fousteri M, Vermeulen W, Egly JM, Svejstrup JQ. A ubiquitin-binding domain in Cockayne syndrome B required for transcription-coupled nucleotide excision repair. Mol Cell 2010; 38:637-48. [PMID: 20541997 PMCID: PMC2885502 DOI: 10.1016/j.molcel.2010.04.017] [Citation(s) in RCA: 104] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 03/24/2010] [Accepted: 04/16/2010] [Indexed: 12/31/2022]
Abstract
Transcription-coupled nucleotide excision repair (TC-NER) allows RNA polymerase II (RNAPII)-blocking lesions to be rapidly removed from the transcribed strand of active genes. Defective TCR in humans is associated with Cockayne syndrome (CS), typically caused by defects in either CSA or CSB. Here, we show that CSB contains a ubiquitin-binding domain (UBD). Cells expressing UBD-less CSB (CSB(del)) have phenotypes similar to those of cells lacking CSB, but these can be suppressed by appending a heterologous UBD, so ubiquitin binding is essential for CSB function. Surprisingly, CSB(del) remains capable of assembling nucleotide excision repair factors and repair synthesis proteins around damage-stalled RNAPII, but such repair complexes fail to excise the lesion. Together, our results indicate an essential role for protein ubiquitylation and CSB's UBD in triggering damage incision during TC-NER and allow us to integrate the function of CSA and CSB in a model for the process.
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Affiliation(s)
- Roy Anindya
- Clare Hall Laboratories, Cancer Research UK London Research Institute, Blanche Lane, South Mimms EN6 3LD, UK
| | - Pierre-Olivier Mari
- Department of Cell Biology and Genetics, Erasmus MC, P.O. Box 2040, 3000 CA Rotterdam, Netherlands
| | - Ulrik Kristensen
- Department of Functional Genomics, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP, BP 16367404 Illkirch Cedex, CU Strasbourg, France
| | - Hanneke Kool
- Department of Toxicogenetics, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
| | - Giuseppina Giglia-Mari
- Department of Cell Biology and Genetics, Erasmus MC, P.O. Box 2040, 3000 CA Rotterdam, Netherlands
| | - Leon H. Mullenders
- Department of Toxicogenetics, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
| | - Maria Fousteri
- Department of Toxicogenetics, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
| | - Wim Vermeulen
- Department of Cell Biology and Genetics, Erasmus MC, P.O. Box 2040, 3000 CA Rotterdam, Netherlands
| | - Jean-Marc Egly
- Department of Functional Genomics, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP, BP 16367404 Illkirch Cedex, CU Strasbourg, France
| | - Jesper Q. Svejstrup
- Clare Hall Laboratories, Cancer Research UK London Research Institute, Blanche Lane, South Mimms EN6 3LD, UK
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31
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Repair and tolerance of oxidative DNA damage in plants. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2009; 681:169-179. [DOI: 10.1016/j.mrrev.2008.07.003] [Citation(s) in RCA: 153] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2008] [Revised: 07/11/2008] [Accepted: 07/17/2008] [Indexed: 11/19/2022]
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32
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Nag R, Smerdon MJ. Altering the chromatin landscape for nucleotide excision repair. Mutat Res 2009; 682:13-20. [PMID: 19167517 DOI: 10.1016/j.mrrev.2009.01.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2008] [Revised: 12/19/2008] [Accepted: 01/05/2009] [Indexed: 12/15/2022]
Abstract
DNA acts as a 'workbench' for various nuclear processes that occur inside living cells. In eukaryotic cells, DNA is highly compacted in a structural hierarchy with histones and other proteins into chromatin. This compaction affects DNA structure and coordinates the accessibility to site-specific nuclear factors during DNA processing events. DNA repair is no exception to this general rule and several reviews have appeared recently that discuss this topic in detail [1-3]. Here, we focus on recent findings correlating changes in DNA repair with subtle variations in the chromatin landscape.
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Affiliation(s)
- Ronita Nag
- Biochemistry and Biophysics, School of Molecular Biosciences, Washington State University, Pullman, WA 99164-4660, United States
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33
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Kuraoka I. Effects of DNA Lesions on Transcription Elongation by RNA Polymerases. Genes Environ 2008. [DOI: 10.3123/jemsge.30.63] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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34
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Dzagnidze A, Katsarava Z, Makhalova J, Liedert B, Yoon MS, Kaube H, Limmroth V, Thomale J. Repair capacity for platinum-DNA adducts determines the severity of cisplatin-induced peripheral neuropathy. J Neurosci 2007; 27:9451-7. [PMID: 17728458 PMCID: PMC6673116 DOI: 10.1523/jneurosci.0523-07.2007] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The pronounced neurotoxicity of the potent antitumor drug cisplatin frequently results in the onset of peripheral polyneuropathy (PNP), which is assumed to be initially triggered by platination products in the nuclear DNA of affected tissues. To further elucidate the molecular mechanisms, we analyzed in a mouse model the formation and processing of the main cisplatin-induced DNA adduct (guanine-guanine intrastrand cross-link) in distinct neuronal cell types by adduct-specific monoclonal antibodies. Comparison of the adduct kinetics in cisplatin-injected mice either proficient or deficient for nucleotide excision repair (NER) functions revealed the essential role of this DNA repair pathway in protecting differentiated cells of the nervous system from excessive formation of such lesions. Hence, chronic exposure to cisplatin resulted in an accelerated accumulation of unrepaired intrastrand cross-links in neuronal cells of mice with dysfunctional NER. The augmented adduct levels in dorsal root ganglion (DRG) cells of those animals coincided with an earlier onset of PNP-like functional disturbance of their sensory nervous system. Independently from the respective repair phenotype, the amount of persisting DNA cross-links in DRG neurons at a given cumulative dose was significantly correlated to the degree of sensory impairment as measured by electroneurography. Collectively, these findings suggest a new model for the processing of cisplatin adducts in primary neuronal cells and accentuate the crucial role of effectual DNA repair capacity in the target cells for the individual risk of therapy-induced PNP.
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Affiliation(s)
| | - Zaza Katsarava
- Klinik für Neurologie, Universitätsklinikum der Universität Duisburg-Essen, D-45122 Essen, Germany
| | | | | | - Min-Suk Yoon
- Klinik für Neurologie, Universitätsklinikum der Universität Duisburg-Essen, D-45122 Essen, Germany
| | - Holger Kaube
- Department of Neurology and Neurophysiology, University of Freiburg, D-79095 Freiburg, Germany, and
- Division of Neurosciences, Medical School, Southampton University, Southampton SO16 64D, United Kingdom
| | - Volker Limmroth
- Klinik für Neurologie, Universitätsklinikum der Universität Duisburg-Essen, D-45122 Essen, Germany
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35
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Clingen PH, Arlett CF, Hartley JA, Parris CN. Chemosensitivity of primary human fibroblasts with defective unhooking of DNA interstrand cross-links. Exp Cell Res 2007; 313:753-60. [DOI: 10.1016/j.yexcr.2006.11.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2006] [Revised: 11/14/2006] [Accepted: 11/15/2006] [Indexed: 10/23/2022]
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36
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Langie SAS, Knaapen AM, Houben JMJ, van Kempen FC, de Hoon JPJ, Gottschalk RWH, Godschalk RWL, van Schooten FJ. The role of glutathione in the regulation of nucleotide excision repair during oxidative stress. Toxicol Lett 2006; 168:302-9. [PMID: 17207589 DOI: 10.1016/j.toxlet.2006.10.027] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2006] [Accepted: 10/30/2006] [Indexed: 11/18/2022]
Abstract
Nucleotide excision repair (NER) mainly repairs bulky DNA adducts and helix distorting lesions, but is additionally considered to be a back-up system for base excision repair to remove oxidative stress induced DNA damage. Therefore, it can be speculated that NER is up-regulated or primed by oxidative stress. Exposure of human pulmonary epithelial cells (A549) to non-toxic doses of 100muM H(2)O(2) indeed showed a 2 to 4.5-fold increase in expression of XPA, XPC, ERCC4, and ERCC5, whereas the expression of ERCC1 was 5-fold decreased. Phenotypical assessment of NER capacity (i.e. recognition and incision of benzo[a]pyrene-DNA adducts) showed a significant decrease to less than 50% after H(2)O(2) exposure, which paralleled the effects of H(2)O(2) on ERCC1 expression. To study the possible involvement of glutathione (GSH) in the regulation of NER, cells were pre-incubated with 0.5mM BSO, resulting in total GSH depletion and increased intracellular oxidative stress. In GSH-depleted cells, the down-regulation of ERCC1 expression by H(2)O(2) was completely abolished and the up-regulation of ERCC4 expression was potentiated from 2.5-fold to >10-fold. Similarly, the H(2)O(2)-induced decrease in NER capacity was absent in GSH-depleted cells. Overall, our data suggest that NER capacity as well as the expression of NER related genes can be modulated by oxidative stress. ERCC1 expression and NER capacity correlated strongly (R(2)=0.85, P<0.01) after oxidant exposure, indicating ERCC1 as a specific target for oxidative stress induced modification of NER.
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Affiliation(s)
- Sabine A S Langie
- Nutrition and Toxicology Research Institute Maastricht (NUTRIM), Department of Health Risk Analysis and Toxicology, Maastricht University, 6200 MD, P.O. Box 616, Maastricht, The Netherlands
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37
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Abstract
The process of ubiquitylation is best known for its role in targeting proteins for degradation by the proteasome. However, recent studies of DNA-repair and DNA-damage-response pathways have significantly broadened the scope of the role of ubiquitylation to include non-proteolytic functions of ubiquitin. These pathways involve the monoubiquitylation of key DNA-repair proteins that have regulatory functions in homologous recombination and translesion DNA synthesis, and involve the polyubiquitylation of nucleotide-excision-repair proteins.
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Affiliation(s)
- Tony T Huang
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Harvard Medical School, 44 Binney Street, Boston, Massachusetts 02115, USA
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38
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Coleman MA, Yin E, Peterson LE, Nelson D, Sorensen K, Tucker JD, Wyrobek AJ. Low-dose irradiation alters the transcript profiles of human lymphoblastoid cells including genes associated with cytogenetic radioadaptive response. Radiat Res 2005; 164:369-82. [PMID: 16187739 DOI: 10.1667/rr3356.1] [Citation(s) in RCA: 110] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Low-dose ionizing radiation alters the gene expression profiles of mammalian cells, yet there is little understanding of the underlying cellular mechanisms responsible for these changes or of their consequences for genomic stability. We investigated the cytogenetic adaptive response of human lymphoblastoid cell lines exposed to 5 cGy (priming dose) followed by 2 Gy (challenge dose) compared to cells that received a single 2-Gy dose to (a) determine how the priming dose influences subsequent gene transcript expression in reproducibly adapting and non-adapting cell lines, and (b) identify gene transcripts that are associated with reductions in the magnitude of chromosomal damage after the challenge dose. The transcript profiles were evaluated using oligonucleotide arrays and RNA obtained 4 h after the challenge dose. A set of 145 genes (false discovery rate = 5%) with transcripts that were affected by the 5-cGy priming dose fell into two categories: (a) a set of common genes that were similarly modulated by the 5-cGy priming dose irrespective of whether the cells subsequently adapted or not and (b) genes with differential transcription in accordance with the cell lines that showed either adaptive or non-adaptive outcomes. The common priming-dose response genes showed up-regulation for protein synthesis genes and down-regulation of metabolic and signal transduction genes (>10-fold differences). The genes associated with subsequent adaptive and non-adaptive outcomes involved DNA repair, stress response, cell cycle control and apoptosis. Our findings support the importance of TP53-related functions in the control of the low-dose cytogenetic radioadaptive response and suggest that certain low-dose-induced alterations in cellular functions are predictive for the risk of subsequent genomic damage.
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Affiliation(s)
- Matthew A Coleman
- Biology and Biotechnology Research Program, Lawrence Livermore, National Laboratory, Livermore, California 94551, USA
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39
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Diggle CP, Bentley J, Knowles MA, Kiltie AE. Inhibition of double-strand break non-homologous end-joining by cisplatin adducts in human cell extracts. Nucleic Acids Res 2005; 33:2531-9. [PMID: 15872216 PMCID: PMC1088968 DOI: 10.1093/nar/gki528] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The effect of cis-diaminedichloroplatinum(II) (cisplatin) DNA damage on the repair of double-strand breaks by non-homologous end-joining (NHEJ) was determined using cell-free extracts. NHEJ was dramatically decreased when plasmid DNA was damaged to contain multiple types of DNA adducts, along the molecule and at the termini, by incubation of DNA with cisplatin; this was a cisplatin concentration-dependent effect. We investigated the effect a single GTG cisplatination site starting 10 bp from the DNA termini would have when surrounded by the regions of AT-rich DNA which were devoid of the major adduct target sequences. Cisplatination of a substrate containing short terminal 13-15 bp AT-rich sequences reduced NHEJ to a greater extent than that of a substrate with longer (31-33 bp) AT-rich sequences. However, cisplatination at the single GTG site within the AT sequence had no significant effect on NHEJ, owing to the influence of additional minor monoadduct and dinucleotide adduct sites within the AT-rich region and owing to the influence of cisplatination at sites upstream of the AT-rich regions. We then studied the effect on NHEJ of one cis-[Pt(NH3)2{d(GpTpG)-N7(1),-N7(3)} [abbreviated as 1,3-d(GpTpG)] cisplatin adduct in the entire DNA molecule, which is more reflective of the situation in vivo during concurrent chemoradiation. The presence of a single 1,3-d(GpTpG) cisplatin adduct 10 bases from each of the two DNA ends to be joined resulted in a small (30%) but significant decrease in NHEJ efficiency. This process, which was DNA-dependent protein kinase and Ku dependent, may in part explain the radiosensitizing effect of cisplatin administered during concurrent chemoradiation.
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Affiliation(s)
| | | | | | - A. E. Kiltie
- To whom correspondence should be addressed. Tel: +44 113 206 4908; Fax: +44 113 242 9886;
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40
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Park HK, Suh D, Hyun M, Koo HS, Ahn B. A DNA repair gene of Caenorhabditis elegans: a homolog of human XPF. DNA Repair (Amst) 2005; 3:1375-83. [PMID: 15336632 DOI: 10.1016/j.dnarep.2004.04.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2004] [Indexed: 11/17/2022]
Abstract
The xeroderma pigmentosum complementation group F (XPF) protein is a structure-specific endonuclease in a complex with ERCC1 and is essential for nucleotide excision repair (NER). We report a single cDNA of Caenorhabditis elegans (C. elegans) encoding highly similar protein to human XPF and other XPF members. We propose to name the corresponding C. elegans gene xpf. Messenger RNA for C. elegans xpf is 5'-tagged with a SL2 splice leader, suggesting an operon-like expression for xpf. Using RNAi, we showed that loss of C. elegans xpf function caused hypersensitivity to ultra-violet (UV) irradiation, as observed in enhanced germ cell apoptosis and increased embryonic lethality. This study suggests that C. elegans xpf is conserved in evolution and plays a role in the repair of UV-damaged DNA in C. elegans.
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Affiliation(s)
- Hye Kyung Park
- Department of Microbiology and Genetic Engineering, University of Ulsan, Ulsan 680-749, South Korea
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41
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Hamimes S, Arakawa H, Stasiak AZ, Kierzek AM, Hirano S, Yang YG, Takata M, Stasiak A, Buerstedde JM, Van Dyck E. RDM1, a Novel RNA Recognition Motif (RRM)-containing Protein Involved in the Cell Response to Cisplatin in Vertebrates. J Biol Chem 2005; 280:9225-35. [PMID: 15611051 DOI: 10.1074/jbc.m412874200] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A variety of cellular proteins has the ability to recognize DNA lesions induced by the anti-cancer drug cisplatin, with diverse consequences on their repair and on the therapeutic effectiveness of this drug. We report a novel gene involved in the cell response to cisplatin in vertebrates. The RDM1 gene (for RAD52 Motif 1) was identified while searching databases for sequences showing similarities to RAD52, a protein involved in homologous recombination and DNA double-strand break repair. Ablation of RDM1 in the chicken B cell line DT40 led to a more than 3-fold increase in sensitivity to cisplatin. However, RDM1-/- cells were not hypersensitive to DNA damages caused by ionizing radiation, UV irradiation, or the alkylating agent methylmethane sulfonate. The RDM1 protein displays a nucleic acid binding domain of the RNA recognition motif (RRM) type. By using gel-shift assays and electron microscopy, we show that purified, recombinant chicken RDM1 protein interacts with single-stranded DNA as well as double-stranded DNA, on which it assembles filament-like structures. Notably, RDM1 recognizes DNA distortions induced by cisplatin-DNA adducts in vitro. Finally, human RDM1 transcripts are abundant in the testis, suggesting a possible role during spermatogenesis.
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Affiliation(s)
- Samia Hamimes
- International Agency for Research on Cancer, 150 Cours Albert Thomas, 69372 Lyon, France
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42
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Sims RJ, Belotserkovskaya R, Reinberg D. Elongation by RNA polymerase II: the short and long of it. Genes Dev 2004; 18:2437-68. [PMID: 15489290 DOI: 10.1101/gad.1235904] [Citation(s) in RCA: 533] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Appreciable advances into the process of transcript elongation by RNA polymerase II (RNAP II) have identified this stage as a dynamic and highly regulated step of the transcription cycle. Here, we discuss the many factors that regulate the elongation stage of transcription. Our discussion includes the classical elongation factors that modulate the activity of RNAP II, and the more recently identified factors that facilitate elongation on chromatin templates. Additionally, we discuss the factors that associate with RNAP II, but do not modulate its catalytic activity. Elongation is highlighted as a central process that coordinates multiple stages in mRNA biogenesis and maturation.
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Affiliation(s)
- Robert J Sims
- Howard Hughes Medical Institute, Robert Wood Johnson Medical School, Piscataway, New Jersey 08854, USA
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43
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Welsh C, Day R, McGurk C, Masters JRW, Wood RD, Köberle B. Reduced levels of XPA, ERCC1 and XPF DNA repair proteins in testis tumor cell lines. Int J Cancer 2004; 110:352-61. [PMID: 15095299 DOI: 10.1002/ijc.20134] [Citation(s) in RCA: 156] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Over 80% of patients with advanced metastatic testis tumors can be cured using cisplatin-based combination chemotherapy. This is unusual as metastatic cancer in adults is usually incurable. Cell lines derived from testis tumors retain sensitivity to cisplatin in vitro. We previously investigated 2 testis tumor cell lines with a low capacity to remove cisplatin-induced DNA damage and found that they had low levels of the DNA nucleotide excision repair proteins XPA, ERCC1 and XPF. To determine whether low levels of XPA, ERCC1 and XPF proteins are characteristic of testis tumor cell lines, we investigated 35 cell lines derived from cancers to determine whether groups of cell lines from diverse tissue origins differ from one another in constitutive levels of these NER proteins. Quantitative immunoblotting was used to compare groups of cell lines representing prostate, bladder, breast, lung, cervical, ovarian and testis cancers. Only the 6 testis tumor cell lines showed significantly lower mean levels of XPA (p = 0.001), XPF (p = 0.001) and ERCC1 (p = 0.004) proteins from the other groups. Our results encourage further investigation of the possibility that low levels of these nucleotide excision repair proteins could be related to the favorable response of testis tumors to cisplatin-based chemotherapy.
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Affiliation(s)
- Carey Welsh
- University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA 15213-1863, USA
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44
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Tian M, Jones DA, Smith M, Shinkura R, Alt FW. Deficiency in the nuclease activity of xeroderma pigmentosum G in mice leads to hypersensitivity to UV irradiation. Mol Cell Biol 2004; 24:2237-42. [PMID: 14993263 PMCID: PMC355871 DOI: 10.1128/mcb.24.6.2237-2242.2004] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Xeroderma pigmentosum (XP) is a human disorder which is characterized by hypersensitivity to sunlight and elevated incidence of skin cancer. The disease is caused by mutations in genes that encode components of the nucleotide excision repair pathway. The gene product of XP complementation group G (XPG) is a structure-specific endonuclease which makes an incision 3' to DNA photoproducts and other helix-distorting DNA adducts. In addition, the XPG protein has been implicated in transcription and repair of oxidative DNA damage. Moreover, XPG is capable of cleaving R loops in vitro, a potential intermediate during immunoglobulin heavy-chain class switch recombination. Due to its multiple functions, complete elimination of XPG in mice results in severe postnatal growth defects and premature death. To understand the contribution of the XPG nuclease activity to its function in vivo, we introduced a point mutation into the mouse XPG gene which inactivates the nuclease catalytic site but leaves the remainder of the protein intact. The XPG nuclease-deficient animals develop normally and exhibit no obvious defect in class switch recombination. However, the mutant mice are hypersensitive to UV irradiation. This phenotype suggests that the nuclease activity of XPG is required only for nucleotide excision repair and that other regions of the protein perform independent functions.
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Affiliation(s)
- Ming Tian
- Children's Hospital, Harvard University Medical School, Boston, Massachusetts 02115, USA
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45
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Ng JMY, Vermeulen W, van der Horst GTJ, Bergink S, Sugasawa K, Vrieling H, Hoeijmakers JHJ. A novel regulation mechanism of DNA repair by damage-induced and RAD23-dependent stabilization of xeroderma pigmentosum group C protein. Genes Dev 2003; 17:1630-45. [PMID: 12815074 PMCID: PMC196135 DOI: 10.1101/gad.260003] [Citation(s) in RCA: 191] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2003] [Accepted: 04/30/2003] [Indexed: 11/25/2022]
Abstract
Primary DNA damage sensing in mammalian global genome nucleotide excision repair (GG-NER) is performed by the xeroderma pigmentosum group C (XPC)/HR23B protein complex. HR23B and HR23A are human homologs of the yeast ubiquitin-domain repair factor RAD23, the function of which is unknown. Knockout mice revealed that mHR23A and mHR23B have a fully redundant role in NER, and a partially redundant function in embryonic development. Inactivation of both genes causes embryonic lethality, but appeared still compatible with cellular viability. Analysis of mHR23A/B double-mutant cells showed that HR23 proteins function in NER by governing XPC stability via partial protection against proteasomal degradation. Interestingly, NER-type DNA damage further stabilizes XPC and thereby enhances repair. These findings resolve the primary function of RAD23 in repair and reveal a novel DNA-damage-dependent regulation mechanism of DNA repair in eukaryotes, which may be part of a more global damage-response circuitry.
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Affiliation(s)
- Jessica M Y Ng
- MGC-Department of Cell Biology & Genetics, Centre for Biomedical Genetics, Erasmus Medical Center, Rotterdam, The Netherlands
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Kasparkova J, Zehnulova J, Farrell N, Brabec V. DNA interstrand cross-links of the novel antitumor trinuclear platinum complex BBR3464. Conformation, recognition by high mobility group domain proteins, and nucleotide excision repair. J Biol Chem 2002; 277:48076-86. [PMID: 12226099 DOI: 10.1074/jbc.m208016200] [Citation(s) in RCA: 130] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The novel phase II antitumor polynuclear platinum drug BBR3464 ([(trans-PtCl(NH(3))(2))(2)(mu-trans-Pt(NH(3))(2)(NH(2)(CH(2))(6)NH(2))(2))](NO(3))(4)) forms intra- and interstrand cross-links (CLs) on DNA (which is the pharmacological target of platinum drugs). We examined first in our recent work how various intrastrand CLs of BBR3464 affect the conformation of DNA and its recognition by cellular components (Zehnulova, J., Kasparkova, J., Farrell, N., and Brabec, V. (2001) J. Biol. Chem. 276, 22191-22199). In the present work, we have extended the studies on the DNA interstrand CLs of this drug. The results have revealed that the interstrand CLs are preferentially formed between guanine residues separated by 2 base pairs in both the 3' --> 3' and 5' --> 5' directions. The major 1,4-interstrand CLs distort DNA, inducing a directional bending of the helix axis and local unwinding of the duplex. Although such distortions represent a potential structural motif for recognition by high mobility group proteins, these proteins do not recognize 1,4-interstrand CLs of BBR3464. On the other hand, in contrast to intrastrand adducts of BBR3464, 1,4-interstrand CLs are not removed from DNA by nucleotide excision repair. It has been suggested that interstrand CLs of BBR3464 could persist considerably longer in cells compared with intrastrand adducts, which would potentiate the toxicity of the interstrand lesions to tumors sensitive to this polynuclear drug.
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Affiliation(s)
- Jana Kasparkova
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Kralovopolska 135, CZ-61265 Brno, Czech Republic
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Abstract
The processes by which cells develop resistance to antitumor platinum drugs have been the subject of intense research because resistance is a major obstacle for the clinical use of this class of drugs. It is therefore of great interest to understand the molecular and biochemical mechanisms that underlie resistance to platinum drugs and their biological effects. There is a large body of experimental evidence suggesting that the antitumor activity of platinum complexes stems from their ability to form on DNA various types of covalent adducts. As a result, research on DNA modifications by these drugs and their cellular processing has predominated. The resistance of tumor cells to platinum drugs has been attributed to several processes and an increased repair of platinum-DNA adducts is considered a most significant event. The present review summarizes recent insights into the effects of sulfur-containing compounds on DNA modifications by antitumor platinum complexes and how these modifications are repaired including how this repair is associated with their recognition by cellular, damaged-DNA binding-proteins. It strongly supports the view that changes in the structure of platinum drugs, resulting in DNA binding mode fundamentally different from that of "classical" cisplatin, will alter resistance pathways of platinum drugs, and may also modulate their pharmacological properties.
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Affiliation(s)
- Viktor Brabec
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Kralovopolska 135, Brno, Czech Republic.
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