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Yu XN, Guo Y, Yang Q, Yu H, Lu MJ, Zhao L, Jin ZS, Xu XN, Feng JY, Wen YQ. Chimeric mutations in grapevine ENHANCED DISEASE RESISTANCE1 improve resistance to powdery mildew without growth penalty. PLANT PHYSIOLOGY 2024; 195:1995-2015. [PMID: 38507576 DOI: 10.1093/plphys/kiae169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 03/22/2024]
Abstract
Grapevine (Vitis vinifera L.) incurs severe quality degradation and yield loss from powdery mildew, a major fungal disease caused by Erysiphe necator. ENHANCED DISEASE RESISTANCE1 (EDR1), a Raf-like mitogen-activated protein kinase kinase kinase, negatively regulates defense responses against powdery mildew in Arabidopsis (Arabidopsis thaliana). However, little is known about the role of the putatively orthologous EDR1 gene in grapevine. In this study, we obtained grapevine VviEDR1-edited lines using CRISPR/Cas9. Plantlets containing homozygous and bi-allelic indels in VviEDR1 developed leaf lesions shortly after transplanting into the soil and died at the seedling stage. Transgenic plants expressing wild-type VviEDR1 and mutant Vviedr1 alleles as chimera (designated as VviEDR1-chi) developed normally and displayed enhanced resistance to powdery mildew. Interestingly, VviEDR1-chi plants maintained a spatiotemporally distinctive pattern of VviEDR1 mutagenesis: while almost no mutations were detected from terminal buds, ensuring normal function of the apical meristem, mutations occurred in young leaves and increased as leaves matured, resulting in resistance to powdery mildew. Further analysis showed that the resistance observed in VviEDR1-chi plants was associated with callose deposition, increased production of salicylic acid and ethylene, H2O2 production and accumulation, and host cell death. Surprisingly, no growth penalty was observed with VviEDR1-chi plants. Hence, this study demonstrated a role of VviEDR1 in the negative regulation of resistance to powdery mildew in grapevine and provided an avenue for engineering powdery mildew resistance in grapevine.
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Affiliation(s)
- Xue-Na Yu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi, China
| | - Ye Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi, China
| | - Qianling Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi, China
| | - Haiyan Yu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi, China
| | - Meng-Jiao Lu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi, China
| | - Liang Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi, China
| | - Zhuo-Shuai Jin
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi, China
| | - Xiang-Nan Xu
- Institute of Plant Nutrition, Resource and Environment, Beijing Academy of Agriculture and Forestry Sciences, Shuguanghuayuan Mid Road 9, Haidian District, Beijing 100097, China
| | - Jia-Yue Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi, China
| | - Ying-Qiang Wen
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi, China
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2
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Zhang L, Hsu JI, Braekeleer ED, Chen CW, Patel TD, Martell AG, Guzman AG, Wohlan K, Waldvogel SM, Uryu H, Tovy A, Callen E, Murdaugh RL, Richard R, Jansen S, Vissers L, de Vries BBA, Nussenzweig A, Huang S, Coarfa C, Anastas J, Takahashi K, Vassiliou G, Goodell MA. SOD1 is a synthetic-lethal target in PPM1D-mutant leukemia cells. eLife 2024; 12:RP91611. [PMID: 38896450 PMCID: PMC11186636 DOI: 10.7554/elife.91611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024] Open
Abstract
The DNA damage response is critical for maintaining genome integrity and is commonly disrupted in the development of cancer. PPM1D (protein phosphatase Mg2+/Mn2+-dependent 1D) is a master negative regulator of the response; gain-of-function mutations and amplifications of PPM1D are found across several human cancers making it a relevant pharmacological target. Here, we used CRISPR/Cas9 screening to identify synthetic-lethal dependencies of PPM1D, uncovering superoxide dismutase-1 (SOD1) as a potential target for PPM1D-mutant cells. We revealed a dysregulated redox landscape characterized by elevated levels of reactive oxygen species and a compromised response to oxidative stress in PPM1D-mutant cells. Altogether, our results demonstrate a role for SOD1 in the survival of PPM1D-mutant leukemia cells and highlight a new potential therapeutic strategy against PPM1D-mutant cancers.
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Affiliation(s)
- Linda Zhang
- Translational Biology and Molecular Medicine Graduate Program, Baylor College of MedicineHoustonUnited States
- Medical Scientist Training Program, Baylor College of MedicineHoustonUnited States
- Stem Cells and Regenerative Medicine Center, Baylor College of MedicineHoustonUnited States
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
- Center for Cell and Gene TherapyHoustonUnited States
| | - Joanne I Hsu
- Translational Biology and Molecular Medicine Graduate Program, Baylor College of MedicineHoustonUnited States
- Medical Scientist Training Program, Baylor College of MedicineHoustonUnited States
- Stem Cells and Regenerative Medicine Center, Baylor College of MedicineHoustonUnited States
| | - Etienne D Braekeleer
- Department of Haematology, Wellcome-MRC Cambridge Stem Cell Institute, University of CambridgeCambridgeUnited Kingdom
| | - Chun-Wei Chen
- Stem Cells and Regenerative Medicine Center, Baylor College of MedicineHoustonUnited States
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
- Center for Cell and Gene TherapyHoustonUnited States
- Integrated Molecular and Biomedical Sciences Graduate Program, Baylor College of MedicineHoustonUnited States
| | - Tajhal D Patel
- Texas Children’s Hospital Department of Hematology/Oncology, Baylor College of MedicineHoustonUnited States
| | - Alejandra G Martell
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
| | - Anna G Guzman
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
| | - Katharina Wohlan
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
| | - Sarah M Waldvogel
- Medical Scientist Training Program, Baylor College of MedicineHoustonUnited States
- Stem Cells and Regenerative Medicine Center, Baylor College of MedicineHoustonUnited States
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
- Center for Cell and Gene TherapyHoustonUnited States
- Cancer and Cell Biology Graduate Program, Baylor College of MedicineHoustonUnited States
| | - Hidetaka Uryu
- Department of Leukemia, The University of Texas MD Anderson Cancer CenterHoustonUnited States
| | - Ayala Tovy
- Stem Cells and Regenerative Medicine Center, Baylor College of MedicineHoustonUnited States
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
- Center for Cell and Gene TherapyHoustonUnited States
| | - Elsa Callen
- Laboratory of Genome Integrity, National Cancer Institute, National Institute of HealthBethesdaUnited States
| | - Rebecca L Murdaugh
- Stem Cells and Regenerative Medicine Center, Baylor College of MedicineHoustonUnited States
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
- Center for Cell and Gene TherapyHoustonUnited States
- Department of Neurosurgery, Baylor College of MedicineHoustonUnited States
| | - Rosemary Richard
- Stem Cells and Regenerative Medicine Center, Baylor College of MedicineHoustonUnited States
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
- Center for Cell and Gene TherapyHoustonUnited States
- Department of Neurosurgery, Baylor College of MedicineHoustonUnited States
| | - Sandra Jansen
- Donders Centre for Neuroscience, Radboud University Medical CenterNijmegenNetherlands
| | - Lisenka Vissers
- Donders Centre for Neuroscience, Radboud University Medical CenterNijmegenNetherlands
| | - Bert BA de Vries
- Donders Centre for Neuroscience, Radboud University Medical CenterNijmegenNetherlands
| | - Andre Nussenzweig
- Laboratory of Genome Integrity, National Cancer Institute, National Institute of HealthBethesdaUnited States
| | - Shixia Huang
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
- Department of Education, Innovation and Technology, Advanced Technology Cores, University of TexasHoustonUnited States
| | - Cristian Coarfa
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
| | - Jamie Anastas
- Stem Cells and Regenerative Medicine Center, Baylor College of MedicineHoustonUnited States
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
- Center for Cell and Gene TherapyHoustonUnited States
- Department of Neurosurgery, Baylor College of MedicineHoustonUnited States
| | - Koichi Takahashi
- Department of Leukemia, The University of Texas MD Anderson Cancer CenterHoustonUnited States
- Department of Genome Medicine, The University of Texas MD Anderson Cancer CenterHoustonUnited States
| | - George Vassiliou
- Department of Haematology, Wellcome-MRC Cambridge Stem Cell Institute, University of CambridgeCambridgeUnited Kingdom
| | - Margaret A Goodell
- Stem Cells and Regenerative Medicine Center, Baylor College of MedicineHoustonUnited States
- Department of Molecular and Cellular Biology, Baylor College of MedicineHoustonUnited States
- Center for Cell and Gene TherapyHoustonUnited States
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3
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Zheng Y, Zhao Y, Dong K, Miao L, Zhou X, Gong Y, Zhang L. A novel Mre11 protein from the hyperthermophilic euryarchaeon Thermococcus barophilus Ch5 possesses 5'-3' exonuclease and endonuclease activities. Int J Biol Macromol 2024; 272:132654. [PMID: 38810854 DOI: 10.1016/j.ijbiomac.2024.132654] [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: 04/09/2024] [Revised: 05/21/2024] [Accepted: 05/23/2024] [Indexed: 05/31/2024]
Abstract
Mre11 is one of important proteins that are involved in DNA repair and recombination by processing DNA ends to produce 3'-single stranded DNA, thus providing a platform for other DNA repair and recombination proteins. In this work, we characterized the Mre11 protein from the hyperthermophilic euryarchaeon Thermococcus barophilus Ch5 (Tba-Mre11) biochemically and dissected the roles of its four conserved residues, which is the first report on Mre11 proteins from Thermococcus. Tba-Mre11 possesses exonuclease activity for degrading ssDNA and dsDNA in the 5'-3' direction, which contrasts with other reported Mre11 homologs. Maximum degradation efficiency was observed with Mn2+ at 80 °C and at pH 7.5-9.5. In addition to possessing 5'-3' exonuclease activity, Tba-Mre11 has endonuclease activity that nicks plasmid DNA and circular ssDNA. Mutational data show that residues D10, D51 and N86 in Tba-Mre11 are essential for DNA degradation since almost no activity was observed for the D10A, D51A and N86A mutants. By comparison, residue D44 in Tba-Mre11 is not responsible for DNA degradation since the D44A mutant possessed the similar WT protein activity. Notably, the D44A mutant almost completely abolished the ability to bind DNA, suggesting that residue D44 is essential for binding DNA.
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Affiliation(s)
- Yaqi Zheng
- College of Environmental Science and Engineering, Yangzhou University, China
| | - Yang Zhao
- College of Environmental Science and Engineering, Yangzhou University, China
| | - Kunming Dong
- College of Environmental Science and Engineering, Yangzhou University, China
| | - Li Miao
- College of Environmental Science and Engineering, Yangzhou University, China
| | - Xiaojian Zhou
- College of Environmental Science and Engineering, Yangzhou University, China
| | - Yong Gong
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, China
| | - Likui Zhang
- College of Environmental Science and Engineering, Yangzhou University, China.
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4
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Daliri K, Hescheler J, Pfannkuche KP. Prime Editing and DNA Repair System: Balancing Efficiency with Safety. Cells 2024; 13:858. [PMID: 38786078 PMCID: PMC11120019 DOI: 10.3390/cells13100858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/24/2024] [Accepted: 05/12/2024] [Indexed: 05/25/2024] Open
Abstract
Prime editing (PE), a recent progression in CRISPR-based technologies, holds promise for precise genome editing without the risks associated with double-strand breaks. It can introduce a wide range of changes, including single-nucleotide variants, insertions, and small deletions. Despite these advancements, there is a need for further optimization to overcome certain limitations to increase efficiency. One such approach to enhance PE efficiency involves the inhibition of the DNA mismatch repair (MMR) system, specifically MLH1. The rationale behind this approach lies in the MMR system's role in correcting mismatched nucleotides during DNA replication. Inhibiting this repair pathway creates a window of opportunity for the PE machinery to incorporate the desired edits before permanent DNA repair actions. However, as the MMR system plays a crucial role in various cellular processes, it is important to consider the potential risks associated with manipulating this system. The new versions of PE with enhanced efficiency while blocking MLH1 are called PE4 and PE5. Here, we explore the potential risks associated with manipulating the MMR system. We pay special attention to the possible implications for human health, particularly the development of cancer.
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Affiliation(s)
- Karim Daliri
- Institute for Neurophysiology, Centre for Physiology and Pathophysiology, Medical Faculty and University Hospital of Cologne, University of Cologne, 50931 Cologne, Germany (K.P.P.)
- Marga and Walter Boll-Laboratory for Cardiac Tissue Engineering, University of Cologne, 50931 Cologne, Germany
| | - Jürgen Hescheler
- Institute for Neurophysiology, Centre for Physiology and Pathophysiology, Medical Faculty and University Hospital of Cologne, University of Cologne, 50931 Cologne, Germany (K.P.P.)
| | - Kurt Paul Pfannkuche
- Institute for Neurophysiology, Centre for Physiology and Pathophysiology, Medical Faculty and University Hospital of Cologne, University of Cologne, 50931 Cologne, Germany (K.P.P.)
- Marga and Walter Boll-Laboratory for Cardiac Tissue Engineering, University of Cologne, 50931 Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany
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5
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Zhang Z, Samsa WE, Gong Z. NUDT16 regulates CtIP PARylation to dictate homologous recombination repair. Nucleic Acids Res 2024; 52:3761-3777. [PMID: 38324469 PMCID: PMC11039996 DOI: 10.1093/nar/gkae064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/04/2024] [Accepted: 01/22/2024] [Indexed: 02/09/2024] Open
Abstract
CtIP initiates DNA end resection and mediates homologous recombination (HR) repair. However, the underlying mechanisms of CtIP regulation and how the control of its regulation affects DNA repair remain incompletely characterized. In this study, NUDT16 loss decreases CtIP protein levels and impairs CtIP recruitment to double-strand breaks (DSBs). Furthermore, overexpression of a catalytically inactive NUDT16 mutant is unable to rescue decreased CtIP protein and impaired CtIP recruitment to DSBs. In addition, we identified a novel posttranslational modification of CtIP by ADP-ribosylation that is targeted by a PAR-binding E3 ubiquitin ligase, RNF146, leading to CtIP ubiquitination and degradation. These data suggest that the hydrolase activity of NUDT16 plays a major role in controlling CtIP protein levels. Notably, ADP-ribosylation of CtIP is required for its interaction with NUDT16, its localization at DSBs, and for HR repair. Interestingly, NUDT16 can also be ADP-ribosylated. The ADP-ribosylated NUDT16 is critical for CtIP protein stability, CtIP recruitment to DSBs, and HR repair in response to DNA damage. In summary, we demonstrate that NUDT16 and its PARylation regulate CtIP stability and CtIP recruitment to DSBs, providing new insights into our understanding of the regulation of CtIP-mediated DNA end resection in the HR repair pathway.
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Affiliation(s)
- Zhen Zhang
- Department of Cancer Biology, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - William E Samsa
- Department of Cancer Biology, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Zihua Gong
- Department of Cancer Biology, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
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6
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Lorković ZJ, Klingenbrunner M, Cho CH, Berger F. Identification of plants' functional counterpart of the metazoan mediator of DNA Damage checkpoint 1. EMBO Rep 2024; 25:1936-1961. [PMID: 38438802 PMCID: PMC11014961 DOI: 10.1038/s44319-024-00107-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/13/2024] [Accepted: 02/19/2024] [Indexed: 03/06/2024] Open
Abstract
Induction of DNA damage triggers rapid phosphorylation of the histone H2A.X (γH2A.X). In animals, mediator of DNA damage checkpoint 1 (MDC1) binds γH2A.X through a tandem BRCA1 carboxyl-terminal (tBRCT) domain and mediates recruitment of downstream effectors of DNA damage response (DDR). However, readers of this modification in plants have remained elusive. We show that from the Arabidopsis BRCT domain proteome, BCP1-4 proteins with tBRCT domains are involved in DDR. Through its tBRCT domain BCP4 binds γH2A.X in vitro and localizes to DNA damage-induced foci in an H2A.X-dependent manner. BCP4 also contains a domain that interacts directly with NBS1 and thus acts as a functional counterpart of MDC1. We also show that BCP1, that contains two tBRCT domains, co-localizes with γH2A.X but it does not bind γH2A.X suggesting functional similarity with human PAXIP1. A phylogenetic analysis supports that PAXIP1 and MDC1 in metazoa and their plant counterparts evolved independently from common ancestors with tBRCT domains. Collectively, our study reveals missing components and provides mechanistic and evolutionary insights into plant DDR.
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Affiliation(s)
- Zdravko J Lorković
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), Vienna, Austria.
| | - Michael Klingenbrunner
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), Vienna, Austria
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Chung Hyun Cho
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), Vienna, Austria
| | - Frédéric Berger
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), Vienna, Austria.
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7
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Wei X, Yi J, Zhang C, Wang M, Wang R, Xu W, Zhao M, Zhao M, Yang T, Wei W, Jin S, Gao H. Enhancement of the Tumor Suppression Effect of High-dose Radiation by Low-dose Pre-radiation Through Inhibition of DNA Damage Repair and Increased Pyroptosis. Dose Response 2024; 22:15593258241245804. [PMID: 38617388 PMCID: PMC11010768 DOI: 10.1177/15593258241245804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 03/21/2024] [Indexed: 04/16/2024] Open
Abstract
Radiation therapy has been a critical and effective treatment for cancer. However, not all cells are destroyed by radiation due to the presence of tumor cell radioresistance. In the current study, we investigated the effect of low-dose radiation (LDR) on the tumor suppressive effect of high-dose radiation (HDR) and its mechanism from the perspective of tumor cell death mode and DNA damage repair, aiming to provide a foundation for improving the efficacy of clinical tumor radiotherapy. We found that LDR pre-irradiation strengthened the HDR-inhibited A549 cell proliferation, HDR-induced apoptosis, and G2 phase cell cycle arrest under co-culture conditions. RNA-sequencing showed that differentially expressed genes after irradiation contained pyroptosis-related genes and DNA damage repair related genes. By detecting pyroptosis-related proteins, we found that LDR could enhance HDR-induced pyroptosis. Furthermore, under co-culture conditions, LDR pre-irradiation enhances the HDR-induced DNA damage and further suppresses the DNA damage-repairing process, which eventually leads to cell death. Lastly, we established a tumor-bearing mouse model and further demonstrated that LDR local pre-irradiation could enhance the cancer suppressive effect of HDR. To summarize, our study proved that LDR pre-irradiation enhances the tumor-killing function of HDR when cancer cells and immune cells were coexisting.
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Affiliation(s)
- Xinfeng Wei
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Junxuan Yi
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Citong Zhang
- Department of Oral Comprehensive Therapy, School of Stomatology, Jilin University, Changchun, China
| | - Mingwei Wang
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Rui Wang
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Weiqiang Xu
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Mingqi Zhao
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Mengdie Zhao
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Teng Yang
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Wei Wei
- Department of Radiotherapy, Chinese PLA General Hospital, Beijing, China
| | - Shunzi Jin
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
| | - Hui Gao
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, China
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
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8
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Zhu Z, Li S, Yin X, Sun K, Song J, Ren W, Gao L, Zhi K. Review: Protein O-GlcNAcylation regulates DNA damage response: A novel target for cancer therapy. Int J Biol Macromol 2024; 264:130351. [PMID: 38403231 DOI: 10.1016/j.ijbiomac.2024.130351] [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: 01/07/2024] [Revised: 02/02/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
The DNA damage response (DDR) safeguards the stable genetic information inheritance by orchestrating a complex protein network in response to DNA damage. However, this mechanism can often hamper the effectiveness of radiotherapy and DNA-damaging chemotherapy in destroying tumor cells, causing cancer resistance. Inhibiting DDR can significantly improve tumor cell sensitivity to radiotherapy and DNA-damaging chemotherapy. Thus, DDR can be a potential target for cancer treatment. Post-translational modifications (PTMs) of DDR-associated proteins profoundly affect their activity and function by covalently attaching new functional groups. O-GlcNAcylation (O-linked-N-acetylglucosaminylation) is an emerging PTM associated with adding and removing O-linked N-acetylglucosamine to serine and threonine residues of proteins. It acts as a dual sensor for nutrients and stress in the cell and is sensitive to DNA damage. However, the explanation behind the specific role of O-GlcNAcylation in the DDR remains remains to be elucidated. To illustrate the complex relationship between O-GlcNAcylation and DDR, this review systematically describes the role of O-GlcNAcylation in DNA repair, cell cycle, and chromatin. We also discuss the defects of current strategies for targeting O-GlcNAcylation-regulated DDR in cancer therapy and suggest potential directions to address them.
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Affiliation(s)
- Zhuang Zhu
- Department of Oral and Maxillofacial Reconstruction, the Affiliated Hospital of Qingdao University, Qingdao 266555, China; School of Stomatology, Qingdao University, Qingdao 266003, China; Department of Oral and Maxillofacial Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266555, China
| | - Shaoming Li
- Department of Oral and Maxillofacial Reconstruction, the Affiliated Hospital of Qingdao University, Qingdao 266555, China; School of Stomatology, Qingdao University, Qingdao 266003, China; Department of Oral and Maxillofacial Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266555, China
| | - Xiaopeng Yin
- Department of Oral and Maxillofacial Surgery, Central Laboratory of Jinan Stamotological Hospital, Jinan Key Laboratory of Oral Tissue Regeneration, Jinan 250001, Shandong Province, China
| | - Kai Sun
- Department of Oral and Maxillofacial Reconstruction, the Affiliated Hospital of Qingdao University, Qingdao 266555, China; School of Stomatology, Qingdao University, Qingdao 266003, China; Department of Oral and Maxillofacial Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266555, China
| | - Jianzhong Song
- Department of Oral and Maxilloafacial Surgery, People's Hospital of Rizhao, Rizhao, Shandong, China
| | - Wenhao Ren
- Department of Oral and Maxillofacial Reconstruction, the Affiliated Hospital of Qingdao University, Qingdao 266555, China; Department of Oral and Maxillofacial Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266555, China.
| | - Ling Gao
- Department of Oral and Maxillofacial Reconstruction, the Affiliated Hospital of Qingdao University, Qingdao 266555, China; School of Stomatology, Qingdao University, Qingdao 266003, China; Key Lab of Oral Clinical Medicine, the Affiliated Hospital of Qingdao University, Qingdao 266003, China; Department of Oral and Maxillofacial Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266555, China.
| | - Keqian Zhi
- Department of Oral and Maxillofacial Reconstruction, the Affiliated Hospital of Qingdao University, Qingdao 266555, China; School of Stomatology, Qingdao University, Qingdao 266003, China; Key Lab of Oral Clinical Medicine, the Affiliated Hospital of Qingdao University, Qingdao 266003, China; Department of Oral and Maxillofacial Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266555, China.
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9
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Leem J, Lee C, Choi DY, Oh JS. Distinct characteristics of the DNA damage response in mammalian oocytes. Exp Mol Med 2024; 56:319-328. [PMID: 38355825 PMCID: PMC10907590 DOI: 10.1038/s12276-024-01178-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 11/15/2023] [Accepted: 12/07/2023] [Indexed: 02/16/2024] Open
Abstract
DNA damage is a critical threat that poses significant challenges to all cells. To address this issue, cells have evolved a sophisticated molecular and cellular process known as the DNA damage response (DDR). Among the various cell types, mammalian oocytes, which remain dormant in the ovary for extended periods, are particularly susceptible to DNA damage. The occurrence of DNA damage in oocytes can result in genetic abnormalities, potentially leading to infertility, birth defects, and even abortion. Therefore, understanding how oocytes detect and repair DNA damage is of paramount importance in maintaining oocyte quality and preserving fertility. Although the fundamental concept of the DDR is conserved across various cell types, an emerging body of evidence reveals striking distinctions in the DDR between mammalian oocytes and somatic cells. In this review, we highlight the distinctive characteristics of the DDR in oocytes and discuss the clinical implications of DNA damage in oocytes.
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Affiliation(s)
- Jiyeon Leem
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Crystal Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Da Yi Choi
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Jeong Su Oh
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea.
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10
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Li X, Gui S, Gui R, Li J, Huang R, Hu M, Luo XJ, Nie X. Multifunctional Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas9-Based Nanobomb against Carbapenem-Resistant Acinetobacter baumannii Infection through Cascade Reaction and Amplification Synergistic Effect. ACS NANO 2023; 17:24632-24653. [PMID: 37874946 DOI: 10.1021/acsnano.3c03267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Carbapenems have been considered to be the preferred antibiotics against Acinetobacter baumannii thus far. However, carbapenem-resistant Acinetobacter baumannii (CRAB) has gradually escalated worldwide, and it frequently causes respiratory and bloodstream infections. Its resistance may lead to high mortality. Thus, there is an urgent need to develop antibacterial drugs. In our research, the pH-sensitive sgRNA-I/L@ZS nanosystem delivered imipenem and better released it in infected tissues to synergistically damage bacteria with nanoparticles. Gene editing of the CRISPR-Cas9 nanosystem amplified the synergistic effect by reversing the drug-resistance of imipenem. Nitric oxide, which l-arginine reacted with ROS to produce in cascade reaction and bacterial infection sites, was beneficial to heal the infected tissues and induce bacteria death for further enhancing antibacterial effects. In addition, this nanocomposite influenced host-bacteria interactions and restrained and destroyed biofilms. The sgRNA-I/L@ZS nanosystem, similar to a nanobomb, was a high-efficiency bactericide against CRAB. Eventually, in acute pneumonia and peritonitis mouse models, the sgRNA-I/L@ZS nanosystem could combat bacteria and protect tissues from infection. It had marked suppressive effects on inflammation and promoted healing and proliferation of infected tissues. This multifunctional nanosystem is expected to be an effective antibacterial agent in the clinic based on good biocompatibility and no toxic side effects. Therefore, developing the nanocomposites will take a favorable step toward solving intractable public health issues.
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Affiliation(s)
- Xisheng Li
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan, P. R. China
| | - Shumin Gui
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan, P. R. China
| | - Rong Gui
- Department of Blood Transfusion, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan, P. R. China
| | - Jian Li
- Department of Blood Transfusion, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan, P. R. China
| | - Rong Huang
- Department of Blood Transfusion, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan, P. R. China
| | - Min Hu
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, P. R. China
| | - Xiu-Ju Luo
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan, P. R. China
| | - Xinmin Nie
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, Hunan, P. R. China
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11
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Tan J, Sun X, Zhao H, Guan H, Gao S, Zhou P. Double-strand DNA break repair: molecular mechanisms and therapeutic targets. MedComm (Beijing) 2023; 4:e388. [PMID: 37808268 PMCID: PMC10556206 DOI: 10.1002/mco2.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 08/29/2023] [Accepted: 09/08/2023] [Indexed: 10/10/2023] Open
Abstract
Double-strand break (DSB), a significant DNA damage brought on by ionizing radiation, acts as an initiating signal in tumor radiotherapy, causing cancer cells death. The two primary pathways for DNA DSB repair in mammalian cells are nonhomologous end joining (NHEJ) and homologous recombination (HR), which cooperate and compete with one another to achieve effective repair. The DSB repair mechanism depends on numerous regulatory variables. DSB recognition and the recruitment of DNA repair components, for instance, depend on the MRE11-RAD50-NBS1 (MRN) complex and the Ku70/80 heterodimer/DNA-PKcs (DNA-PK) complex, whose control is crucial in determining the DSB repair pathway choice and efficiency of HR and NHEJ. In-depth elucidation on the DSB repair pathway's molecular mechanisms has greatly facilitated for creation of repair proteins or pathways-specific inhibitors to advance precise cancer therapy and boost the effectiveness of cancer radiotherapy. The architectures, roles, molecular processes, and inhibitors of significant target proteins in the DSB repair pathways are reviewed in this article. The strategy and application in cancer therapy are also discussed based on the advancement of inhibitors targeted DSB damage response and repair proteins.
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Affiliation(s)
- Jinpeng Tan
- Hengyang Medical CollegeUniversity of South ChinaHengyangHunan ProvinceChina
- Department of Radiation BiologyBeijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Xingyao Sun
- Hengyang Medical CollegeUniversity of South ChinaHengyangHunan ProvinceChina
- Department of Radiation BiologyBeijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Hongling Zhao
- Department of Radiation BiologyBeijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Hua Guan
- Department of Radiation BiologyBeijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Shanshan Gao
- Department of Radiation BiologyBeijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Ping‐Kun Zhou
- Hengyang Medical CollegeUniversity of South ChinaHengyangHunan ProvinceChina
- Department of Radiation BiologyBeijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
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12
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Tichy ED, Lee JH, Li G, Estep KN, Brad Johnson F, Mourkioti F. Impacts of radiation exposure, hindlimb unloading, and recovery on murine skeletal muscle cell telomere length. NPJ Microgravity 2023; 9:76. [PMID: 37714858 PMCID: PMC10504369 DOI: 10.1038/s41526-023-00303-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 07/06/2023] [Indexed: 09/17/2023] Open
Abstract
Astronauts are exposed to harsh conditions, including cosmic radiation and microgravity. Spaceflight elongates human telomeres in peripheral blood, which shorten upon return to Earth and approach baseline levels during postflight recovery. Astronauts also encounter muscle atrophy, losing up to 20% loss of muscle mass on spaceflights. Telomere length changes in muscle cells of astronauts remain unexplored. This study investigates telomere alterations in grounded mice experiencing radiation exposure and muscle atrophy, via a hindlimb unloading spaceflight mimicking model. We find telomere lengthening is present in muscle stem cells and in myofiber nuclei, but not in muscle-resident endothelial cells. We further assessed telomere length in the model following hindlimb unloading recovery. We find that telomere length failed to return to baseline values. Our results suggest a role for telomeres in muscle acclimatization, which is relevant for the well-being of astronauts in space, and upon their return to Earth.
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Affiliation(s)
- Elisia D Tichy
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Ji-Hyung Lee
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Grant Li
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Katrina N Estep
- Department of Pathology and Laboratory Medicine, Institute on Aging, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - F Brad Johnson
- Department of Pathology and Laboratory Medicine, Institute on Aging, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Foteini Mourkioti
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
- Penn Institute for Regenerative Medicine, Musculoskeletal Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
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13
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Belov O, Chigasova A, Pustovalova M, Osipov A, Eremin P, Vorobyeva N, Osipov AN. Dose-Dependent Shift in Relative Contribution of Homologous Recombination to DNA Repair after Low-LET Ionizing Radiation Exposure: Empirical Evidence and Numerical Simulation. Curr Issues Mol Biol 2023; 45:7352-7373. [PMID: 37754249 PMCID: PMC10528584 DOI: 10.3390/cimb45090465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/28/2023] Open
Abstract
Understanding the relative contributions of different repair pathways to radiation-induced DNA damage responses remains a challenging issue in terms of studying the radiation injury endpoints. The comparative manifestation of homologous recombination (HR) after irradiation with different doses greatly determines the overall effectiveness of recovery in a dividing cell after irradiation, since HR is an error-free mechanism intended to perform the repair of DNA double-strand breaks (DSB) during S/G2 phases of the cell cycle. In this article, we present experimentally observed evidence of dose-dependent shifts in the relative contributions of HR in human fibroblasts after X-ray exposure at doses in the range 20-1000 mGy, which is also supported by quantitative modeling of DNA DSB repair. Our findings indicate that the increase in the radiation dose leads to a dose-dependent decrease in the relative contribution of HR in the entire repair process.
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Affiliation(s)
- Oleg Belov
- Joint Institute for Nuclear Research, 6 Joliot-Curie St., 141980 Dubna, Russia;
- Institute of Biomedical Problems, Russian Academy of Sciences, 76A Khoroshevskoye Shosse, 123007 Moscow, Russia
- Institute of System Analysis and Management, Dubna State University, 19 Universitetskaya St., 141980 Dubna, Russia
| | - Anna Chigasova
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia; (A.C.); (A.O.); (N.V.)
- Emanuel Institute for Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Margarita Pustovalova
- State Research Center—Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency (SRC—FMBC), 123098 Moscow, Russia;
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
| | - Andrey Osipov
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia; (A.C.); (A.O.); (N.V.)
| | - Petr Eremin
- FSBI “National Medical Research Center for Rehabilitation and Balneology”, Ministry of Health of Russia, 121099 Moscow, Russia;
| | - Natalia Vorobyeva
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia; (A.C.); (A.O.); (N.V.)
- State Research Center—Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency (SRC—FMBC), 123098 Moscow, Russia;
| | - Andreyan N. Osipov
- Joint Institute for Nuclear Research, 6 Joliot-Curie St., 141980 Dubna, Russia;
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia; (A.C.); (A.O.); (N.V.)
- State Research Center—Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency (SRC—FMBC), 123098 Moscow, Russia;
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
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14
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Wei M, Huang X, Liao L, Tian Y, Zheng X. SENP1 Decreases RNF168 Phase Separation to Promote DNA Damage Repair and Drug Resistance in Colon Cancer. Cancer Res 2023; 83:2908-2923. [PMID: 37350666 DOI: 10.1158/0008-5472.can-22-4017] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/26/2023] [Accepted: 06/15/2023] [Indexed: 06/24/2023]
Abstract
The DNA damage response (DDR) is essential for the maintenance of genomic stability. Protein posttranslational modifications play pivotal roles in regulating the DDR process. Here, we found that SUMOylated RNF168 undergoes liquid-liquid phase separation (LLPS), which restricts the recruitment of RNF168 to DNA damage sites, reduces RNF168-catalyzed H2A ubiquitination, restrains 53BP1 in nuclear condensates, and ultimately impairs nonhomologous DNA end joining repair efficiency. Sentrin/SUMO-specific protease 1 (SENP1) was identified as a specific deSUMOylase of RNF168, and it was highly expressed in colorectal adenocarcinoma. In response to DNA damage, SENP1 decreased RNF168 SUMOylation and prevented RNF168 from forming nuclear condensates, thus promoting damage repair efficiency and cancer cell resistance to DNA damaging agents. Moreover, high SENP1 expression correlated with poor prognosis in patients with cancer, and SENP1 depletion sensitized cancer cells to chemotherapy. In summary, these findings reveal DDR is suppressed by SUMOylation-induced LLPS of RNF168 and suggest that SENP1 is a potential target for cancer therapy. SIGNIFICANCE Sentrin/SUMO-specific protease 1 decreases RNF168 SUMOylation and liquid-liquid phase separation to promote DNA damage repair, safeguarding genomic integrity and driving chemotherapy resistance.
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Affiliation(s)
- Min Wei
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Peking University, Beijing, China
| | - Xinping Huang
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Peking University, Beijing, China
| | - Liming Liao
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Peking University, Beijing, China
| | - Yonglu Tian
- School of Psychological and Cognitive Sciences, Peking University, Beijing, China
- IDG/McGovern Institute for Brain Research, Peking University, Beijing, China
| | - Xiaofeng Zheng
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Peking University, Beijing, China
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15
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Saeidi H, Bakrin IH, Raju CS, Ismail P, Saraf M, Khairul-Asri MG. Genetic aberrations of homologous recombination repair pathways in prostate cancer: The prognostic and therapeutic implications. Adv Med Sci 2023; 68:359-365. [PMID: 37757663 DOI: 10.1016/j.advms.2023.09.008] [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: 06/22/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023]
Abstract
Prostate cancer (PC) is the second most common cancer in men worldwide. Homologous recombination repair (HRR) gene defects have been identified in a significant proportion of metastatic castration-resistant PC (mCRPC) and are associated with an increased risk of PC and more aggressive PC. Importantly, it has been well-documented that poly ADP-ribose polymerase (PARP) inhibition in cells with HR deficiency (HRD) can cause cell death. This has been exploited for the targeted treatment of PC patients with HRD by PARP inhibitors. Moreover, it has been shown that platinum-based chemotherapy is more effective in mCRPC patients with HRR gene alterations. This review highlights the prognosis and therapeutic implications of HRR gene alterations in PC.
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Affiliation(s)
- Hamidreza Saeidi
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, University of Putra Malaysia, Serdang, Malaysia.
| | - Ikmal Hisyam Bakrin
- Department of Pathology, Faculty of Medicine and Health Sciences, University of Putra Malaysia, Serdang, Malaysia
| | - Chandramathi Samudi Raju
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Patimah Ismail
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, University of Putra Malaysia, Serdang, Malaysia
| | - Mohsen Saraf
- Department of Biomedical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran.
| | - Mohd Ghani Khairul-Asri
- Department of Urology, Faculty of Medicine and Health Sciences, University of Putra Malaysia, Selangor, Malaysia
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16
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Vorobyeva NY, Osipov AA, Chigasova AK, Yashkina EI, Osipov AN. Changes in the Number of Residual γH2AX Foci in Ki-67-Positive and Ki-67-Negative Human Fibroblasts Irradiated with X-Rays in Doses of 2-10 Gy. Bull Exp Biol Med 2023; 175:450-453. [PMID: 37768460 DOI: 10.1007/s10517-023-05883-2] [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: 10/28/2022] [Indexed: 09/29/2023]
Abstract
We studied changes in the number of residual γH2AX foci in cultured human fibroblasts with different expression of the cell proliferation marker protein Ki-67 24, 48, and 72 h after exposure to X-ray radiation in doses of 2-10 Gy. It was shown that, regardless of the expression of Ki-67, the number of residual γH2AX foci in irradiated cells linearly depends on the absorbed dose of X-ray radiation. However, the quantitative yield of residual γH2AX foci per unit of the absorbed dose in Ki-67+ cells 24 and 48 h after irradiation was higher than in Ki-67- cells by 1.8 and 2.0 times, respectively. In Ki-67- cells, the quantitative yield of residual γH2AX foci per unit of absorbed dose decreases by ~1.7 times with increasing the time after irradiation from 24 to 72 h. For the purposes of practical radiation biodosimetry, it can be recommended to quantify residual γH2AX foci in non-proliferating cells at least 72 h after irradiation.
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Affiliation(s)
- N Yu Vorobyeva
- N. N. Semenov Federal Research Center of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency of Russia, Moscow, Russia
| | - A A Osipov
- N. N. Semenov Federal Research Center of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - A K Chigasova
- N. N. Semenov Federal Research Center of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
- N. M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - E I Yashkina
- N. N. Semenov Federal Research Center of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency of Russia, Moscow, Russia
| | - A N Osipov
- N. N. Semenov Federal Research Center of Chemical Physics, Russian Academy of Sciences, Moscow, Russia.
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency of Russia, Moscow, Russia.
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17
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Ding X, Gong X, Fan Y, Cao J, Zhao J, Zhang Y, Wang X, Meng K. DNA double-strand break genetic variants in patients with premature ovarian insufficiency. J Ovarian Res 2023; 16:135. [PMID: 37430352 DOI: 10.1186/s13048-023-01221-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 06/20/2023] [Indexed: 07/12/2023] Open
Abstract
Premature ovarian insufficiency (POI) is a clinically heterogeneous disease that may seriously affect the physical and mental health of women of reproductive age. POI primarily manifests as ovarian function decline and endocrine disorders in women prior to age 40 and is an established cause of female infertility. It is crucial to elucidate the causative factors of POI, not only to expand the understanding of ovarian physiology, but also to provide genetic counselling and fertility guidance to affected patients. Factors leading to POI are multifaceted with genetic factors accounting for 7% to 30%. In recent years, an increasing number of DNA damage-repair-related genes have been linked with the occurrence of POI. Among them, DNA double-strand breaks (DSBs), one of the most damaging to DNA, and its main repair methods including homologous recombination (HR) and non-homologous end joining (NHEJ) are of particular interest. Numerous genes are known to be involved in the regulation of programmed DSB formation and damage repair. The abnormal expression of several genes have been shown to trigger defects in the overall repair pathway and induce POI and other diseases. This review summarises the DSB-related genes that may contribute to the development of POI and their potential regulatory mechanisms, which will help to further establish role of DSB in the pathogenesis of POI and provide theoretical guidance for the study of the pathogenesis and clinical treatment of this disease.
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Affiliation(s)
- Xuechun Ding
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- College of Second Clinical Medical, Jining Medical University, Jining, China
| | - Xiaowei Gong
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- College of Second Clinical Medical, Jining Medical University, Jining, China
| | - Yingying Fan
- Affiliated Hospital of Jining Medical University, Jining, China
| | - Jinghe Cao
- Affiliated Hospital of Jining Medical University, Jining, China
| | - Jingyu Zhao
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- College of Second Clinical Medical, Jining Medical University, Jining, China
| | - Yixin Zhang
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China
- College of Second Clinical Medical, Jining Medical University, Jining, China
| | - Xiaomei Wang
- College of Basic Medicine, Jining Medical University, Jining, China.
| | - Kai Meng
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, China.
- Lin He's Academician Workstation of New Medicine and Clinical Translation, Jining Medical University, Jining, China.
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18
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Ma C, Liu J, Tang J, Sun Y, Jiang X, Zhang T, Feng Y, Liu Q, Wang L. Current genetic strategies to investigate gene functions in Trichoderma reesei. Microb Cell Fact 2023; 22:97. [PMID: 37161391 PMCID: PMC10170752 DOI: 10.1186/s12934-023-02104-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 04/21/2023] [Indexed: 05/11/2023] Open
Abstract
The filamentous fungus Trichoderma reesei (teleomorph Hypocrea jecorina, Ascomycota) is a well-known lignocellulolytic enzymes-producing strain in industry. To increase the fermentation titer of lignocellulolytic enzymes, random mutagenesis and rational genetic engineering in T. reesei were carried out since it was initially found in the Solomon Islands during the Second World War. Especially the continuous exploration of the underlying regulatory network during (hemi)cellulase gene expression in the post-genome era provided various strategies to develop an efficient fungal cell factory for these enzymes' production. Meanwhile, T. reesei emerges competitiveness potential as a filamentous fungal chassis to produce proteins from other species (e.g., human albumin and interferon α-2b, SARS-CoV-2 N antigen) in virtue of the excellent expression and secretion system acquired during the studies about (hemi)cellulase production. However, all the achievements in high yield of (hemi)cellulases are impossible to finish without high-efficiency genetic strategies to analyze the proper functions of those genes involved in (hemi)cellulase gene expression or secretion. Here, we in detail summarize the current strategies employed to investigate gene functions in T. reesei. These strategies are supposed to be beneficial for extending the potential of T. reesei in prospective strain engineering.
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Affiliation(s)
- Chixiang Ma
- China Medical University-The Queen's University of Belfast Joint College, Shenyang, Liaoning, 110122, China
| | - Jialong Liu
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Jiaxin Tang
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Yuanlu Sun
- China Medical University-The Queen's University of Belfast Joint College, Shenyang, Liaoning, 110122, China
| | - Xiaojie Jiang
- China Medical University-The Queen's University of Belfast Joint College, Shenyang, Liaoning, 110122, China
| | - Tongtong Zhang
- China Medical University-The Queen's University of Belfast Joint College, Shenyang, Liaoning, 110122, China
| | - Yan Feng
- College of Life Sciences, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
| | - Qinghua Liu
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Lei Wang
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
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19
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Xie D, Huang Q, Zhou P. Drug Discovery Targeting Post-Translational Modifications in Response to DNA Damages Induced by Space Radiation. Int J Mol Sci 2023; 24:ijms24087656. [PMID: 37108815 PMCID: PMC10142602 DOI: 10.3390/ijms24087656] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/07/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
DNA damage in astronauts induced by cosmic radiation poses a major barrier to human space exploration. Cellular responses and repair of the most lethal DNA double-strand breaks (DSBs) are crucial for genomic integrity and cell survival. Post-translational modifications (PTMs), including phosphorylation, ubiquitylation, and SUMOylation, are among the regulatory factors modulating a delicate balance and choice between predominant DSB repair pathways, such as non-homologous end joining (NHEJ) and homologous recombination (HR). In this review, we focused on the engagement of proteins in the DNA damage response (DDR) modulated by phosphorylation and ubiquitylation, including ATM, DNA-PKcs, CtIP, MDM2, and ubiquitin ligases. The involvement and function of acetylation, methylation, PARylation, and their essential proteins were also investigated, providing a repository of candidate targets for DDR regulators. However, there is a lack of radioprotectors in spite of their consideration in the discovery of radiosensitizers. We proposed new perspectives for the research and development of future agents against space radiation by the systematic integration and utilization of evolutionary strategies, including multi-omics analyses, rational computing methods, drug repositioning, and combinations of drugs and targets, which may facilitate the use of radioprotectors in practical applications in human space exploration to combat fatal radiation hazards.
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Affiliation(s)
- Dafei Xie
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology (BKLRB), Beijing Institute of Radiation Medicine, Taiping Road 27th, Haidian District, Beijing 100850, China
| | - Qi Huang
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology (BKLRB), Beijing Institute of Radiation Medicine, Taiping Road 27th, Haidian District, Beijing 100850, China
- Department of Preventive Medicine, School of Public Health, University of South China, Changsheng West Road 28th, Zhengxiang District, Hengyang 421001, China
| | - Pingkun Zhou
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology (BKLRB), Beijing Institute of Radiation Medicine, Taiping Road 27th, Haidian District, Beijing 100850, China
- Department of Preventive Medicine, School of Public Health, University of South China, Changsheng West Road 28th, Zhengxiang District, Hengyang 421001, China
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20
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Fu L, Lu K, Jiao Q, Chen X, Jia F. The Regulation and Double-Edged Roles of the Deubiquitinase OTUD5. Cells 2023; 12:cells12081161. [PMID: 37190070 DOI: 10.3390/cells12081161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/09/2023] [Accepted: 04/10/2023] [Indexed: 05/17/2023] Open
Abstract
OTUD5 (OTU Deubiquitinase 5) is a functional cysteine protease with deubiquitinase activity and is a member of the ovarian tumor protease (OTU) family. OTUD5 is involved in the deubiquitination of many key proteins in various cellular signaling pathways and plays an important role in maintaining normal human development and physiological functions. Its dysfunction can affect physiological processes, such as immunity and DNA damage repair, and it can even lead to tumors, inflammatory diseases and genetic disorders. Therefore, the regulation of OTUD5 activity and expression has become a hot topic of research. A comprehensive understanding of the regulatory mechanisms of OTUD5 and its use as a therapeutic target for diseases is of great value. Herein, we review the physiological processes and molecular mechanisms of OTUD5 regulation, outline the specific regulatory processes of OTUD5 activity and expression, and link OTUD5 to diseases from the perspective of studies on signaling pathways, molecular interactions, DNA damage repair and immune regulation, thus providing a theoretical basis for future studies.
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Affiliation(s)
- Lin Fu
- School of Basic Medicine, Qingdao University, Qingdao 266072, China
| | - Kun Lu
- School of Basic Medicine, Qingdao University, Qingdao 266072, China
| | - Qian Jiao
- School of Basic Medicine, Qingdao University, Qingdao 266072, China
| | - Xi Chen
- School of Basic Medicine, Qingdao University, Qingdao 266072, China
| | - Fengju Jia
- School of Nursing, Qingdao University, Qingdao 266072, China
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21
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Haque M, Shakil MS, Mahmud KM. The Promise of Nanoparticles-Based Radiotherapy in Cancer Treatment. Cancers (Basel) 2023; 15:cancers15061892. [PMID: 36980778 PMCID: PMC10047050 DOI: 10.3390/cancers15061892] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Radiation has been utilized for a long time for the treatment of cancer patients. However, radiotherapy (RT) has many constraints, among which non-selectivity is the primary one. The implementation of nanoparticles (NPs) with RT not only localizes radiation in targeted tissue but also provides significant tumoricidal effect(s) compared to radiation alone. NPs can be functionalized with both biomolecules and therapeutic agents, and their combination significantly reduces the side effects of RT. NP-based RT destroys cancer cells through multiple mechanisms, including ROS generation, which in turn damages DNA and other cellular organelles, inhibiting of the DNA double-strand damage-repair system, obstructing of the cell cycle, regulating of the tumor microenvironment, and killing of cancer stem cells. Furthermore, such combined treatments overcome radioresistance and drug resistance to chemotherapy. Additionally, NP-based RT in combined treatments have shown synergistic therapeutic benefit(s) and enhanced the therapeutic window. Furthermore, a combination of phototherapy, i.e., photodynamic therapy and photothermal therapy with NP-based RT, not only reduces phototoxicity but also offers excellent therapeutic benefits. Moreover, using NPs with RT has shown promise in cancer treatment and shown excellent therapeutic outcomes in clinical trials. Therefore, extensive research in this field will pave the way toward improved RT in cancer treatment.
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Affiliation(s)
- Munima Haque
- Department of Mathematics and Natural Sciences, BRAC University, Dhaka 1212, Bangladesh
| | - Md Salman Shakil
- Department of Mathematics and Natural Sciences, BRAC University, Dhaka 1212, Bangladesh
| | - Kazi Mustafa Mahmud
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
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22
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Xu Y, Nowsheen S, Deng M. DNA Repair Deficiency Regulates Immunity Response in Cancers: Molecular Mechanism and Approaches for Combining Immunotherapy. Cancers (Basel) 2023; 15:cancers15051619. [PMID: 36900418 PMCID: PMC10000854 DOI: 10.3390/cancers15051619] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/26/2023] [Accepted: 03/04/2023] [Indexed: 03/09/2023] Open
Abstract
Defects in DNA repair pathways can lead to genomic instability in multiple tumor types, which contributes to tumor immunogenicity. Inhibition of DNA damage response (DDR) has been reported to increase tumor susceptibility to anticancer immunotherapy. However, the interplay between DDR and the immune signaling pathways remains unclear. In this review, we will discuss how a deficiency in DDR affects anti-tumor immunity, highlighting the cGAS-STING axis as an important link. We will also review the clinical trials that combine DDR inhibition and immune-oncology treatments. A better understanding of these pathways will help exploit cancer immunotherapy and DDR pathways to improve treatment outcomes for various cancers.
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Affiliation(s)
- Yi Xu
- State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Somaira Nowsheen
- Department of Dermatology, University of California San Diego, San Diego, CA 92122, USA
- Correspondence: (S.N.); (M.D.)
| | - Min Deng
- State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
- Correspondence: (S.N.); (M.D.)
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23
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Wei Y, Xiao G, Xu H, Sun X, Shi Y, Wang F, Kang J, Peng J, Zhou F. Radiation resistance of cancer cells caused by mitochondrial dysfunction depends on SIRT3-mediated mitophagy. FEBS J 2023. [PMID: 36871142 DOI: 10.1111/febs.16769] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 01/14/2023] [Accepted: 03/02/2023] [Indexed: 03/06/2023]
Abstract
Radiation resistance is the leading cause of radiotherapy failure in patients with cancer. Enhanced DNA damage repair is the main reason for cancer cells to develop resistance to radiation. Autophagy has been widely reported to be linked to increased genome stability and radiation resistance. Mitochondria are highly involved in the cell response to radiotherapy. However, the autophagy subtype mitophagy has not been studied in terms of genome stability. We have previously demonstrated that mitochondrial dysfunction is the cause of radiation resistance in tumour cells. In the present study, we found that SIRT3 was highly expressed in colorectal cancer cells with mitochondrial dysfunction, leading to PINK1/Parkin-mediated mitophagy. Excessive activation of mitophagy enhanced DNA damage repair, therefore promoting the resistance of tumour cells to radiation. Mechanistically, mitophagy resulted in decreased RING1b expression, which led to a reduction in the ubiquitination of histone H2A at K119, thereby enhancing the repair of DNA damage caused by radiation. Additionally, high expression of SIRT3 was related to a poor tumour regression grade in rectal cancer patients treated with neoadjuvant radiotherapy. These findings suggest that restoring mitochondrial function could be an effective method for increasing the radiosensitivity of patients with colorectal cancer.
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Affiliation(s)
- Yan Wei
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Guohui Xiao
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui Xu
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Xuehua Sun
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Yingying Shi
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Fen Wang
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Jinlin Kang
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Jin Peng
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Fuxiang Zhou
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Tumor Biological Behaviors, Zhongnan Hospital, Wuhan University, Wuhan, China
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24
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Niu Z, Jiang D, Shen J, Liu W, Tan X, Cao G. Potential Role of the Fragile Histidine Triad in Cancer Evo-Dev. Cancers (Basel) 2023; 15:cancers15041144. [PMID: 36831487 PMCID: PMC9954361 DOI: 10.3390/cancers15041144] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023] Open
Abstract
Cancer development follows an evolutionary pattern of "mutation-selection-adaptation" detailed by Cancer Evolution and Development (Cancer Evo-Dev), a theory that represents a process of accumulating somatic mutations due to the imbalance between the mutation-promoting force and the mutation-repairing force and retro-differentiation of the mutant cells to cancer initiation cells in a chronic inflammatory microenvironment. The fragile histidine triad (FHIT) gene is a tumor suppressor gene whose expression is often reduced or inactivated in precancerous lesions during chronic inflammation or virus-induced replicative stress. Here, we summarize evidence regarding the mechanisms by which the FHIT is inactivated in cancer, including the loss of heterozygosity and the promoter methylation, and characterizes the role of the FHIT in bridging macroevolution and microevolution and in facilitating retro-differentiation during cancer evolution and development. It is suggested that decreased FHIT expression is involved in several critical steps of Cancer Evo-Dev. Future research needs to focus on the role and mechanisms of the FHIT in promoting the transformation of pre-cancerous lesions into cancer.
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Affiliation(s)
- Zheyun Niu
- Shanghai East Hospital, Key Laboratory of Arrhythmias, Ministry of Education, Tongji University School of Medicine Tongji University, Shanghai 200120, China
| | - Dongming Jiang
- Shanghai East Hospital, Key Laboratory of Arrhythmias, Ministry of Education, Tongji University School of Medicine Tongji University, Shanghai 200120, China
| | - Jiaying Shen
- Shanghai East Hospital, Key Laboratory of Arrhythmias, Ministry of Education, Tongji University School of Medicine Tongji University, Shanghai 200120, China
| | - Wenbin Liu
- Shanghai Key Laboratory of Medical Bioprotection, Shanghai 200433, China
- Key Laboratory of Biological Defense, Ministry of Education, Shanghai 200433, China
- Department of Epidemiology, Second Military Medical University, Shanghai 200433, China
| | - Xiaojie Tan
- Shanghai Key Laboratory of Medical Bioprotection, Shanghai 200433, China
- Key Laboratory of Biological Defense, Ministry of Education, Shanghai 200433, China
- Department of Epidemiology, Second Military Medical University, Shanghai 200433, China
| | - Guangwen Cao
- Shanghai East Hospital, Key Laboratory of Arrhythmias, Ministry of Education, Tongji University School of Medicine Tongji University, Shanghai 200120, China
- Shanghai Key Laboratory of Medical Bioprotection, Shanghai 200433, China
- Key Laboratory of Biological Defense, Ministry of Education, Shanghai 200433, China
- Department of Epidemiology, Second Military Medical University, Shanghai 200433, China
- Correspondence: ; Tel.: +86-21-81871060
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25
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DNA Damage Response Mechanisms in Head and Neck Cancer: Significant Implications for Therapy and Survival. Int J Mol Sci 2023; 24:ijms24032760. [PMID: 36769087 PMCID: PMC9917521 DOI: 10.3390/ijms24032760] [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: 12/28/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Head and neck cancer (HNC) is a term collectively used to describe a heterogeneous group of tumors that arise in the oral cavity, larynx, nasopharynx, oropharynx, and hypopharynx, and represents the sixth most common type of malignancy worldwide. Despite advances in multimodality treatment, the disease has a recurrence rate of around 50%, and the prognosis of metastatic patients remains poor. HNCs are characterized by a high degree of genomic instability, which involves a vicious circle of accumulating DNA damage, defective DNA damage repair (DDR), and replication stress. Nonetheless, the damage that is induced on tumor cells by chemo and radiotherapy relies on defective DDR processes for a successful response to treatment, and may play an important role in the development of novel and more effective therapies. This review summarizes the current knowledge on the genes and proteins that appear to be deregulated in DDR pathways, their implication in HNC pathogenesis, and the rationale behind targeting these genes and pathways for the development of new therapies. We give particular emphasis on the therapeutic targets that have shown promising results at the pre-clinical stage and on those that have so far been associated with a therapeutic advantage in the clinical setting.
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26
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Sharda A, Humphrey TC. The role of histone H3K36me3 writers, readers and erasers in maintaining genome stability. DNA Repair (Amst) 2022; 119:103407. [PMID: 36155242 DOI: 10.1016/j.dnarep.2022.103407] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 09/15/2022] [Accepted: 09/15/2022] [Indexed: 11/03/2022]
Abstract
Histone Post-Translational Modifications (PTMs) play fundamental roles in mediating DNA-related processes such as transcription, replication and repair. The histone mark H3K36me3 and its associated methyltransferase SETD2 (Set2 in yeast) are archetypical in this regard, performing critical roles in each of these DNA transactions. Here, we present an overview of H3K36me3 regulation and the roles of its writers, readers and erasers in maintaining genome stability through facilitating DNA double-strand break (DSB) repair, checkpoint signalling and replication stress responses. Further, we consider how loss of SETD2 and H3K36me3, frequently observed in a number of different cancer types, can be specifically targeted in the clinic through exploiting loss of particular genome stability functions.
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Affiliation(s)
- Asmita Sharda
- CRUK and MRC Oxford Institute for Radiation Oncology, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK
| | - Timothy C Humphrey
- CRUK and MRC Oxford Institute for Radiation Oncology, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK
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27
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Liu JY, Zou T, Yin JY, Wang Z, Liu C, Huang HX, Ding FX, Lei MR, Wang Y, Liu M, Liu ZQ, Tan LM, Chen J. Genetic Variants in Double-Strand Break Repair Pathway Genes to Predict Platinum-Based Chemotherapy Prognosis in Patients With Lung Cancer. Front Pharmacol 2022; 13:915822. [PMID: 35899106 PMCID: PMC9309806 DOI: 10.3389/fphar.2022.915822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/30/2022] [Indexed: 11/21/2022] Open
Abstract
Objective: The purpose of this study was to investigate the associations of genetic variants in double-strand break (DSB) repair pathway genes with prognosis in patients with lung cancer treated with platinum-based chemotherapy. Methods: Three hundred ninety-nine patients with lung cancer who received platinum-based chemotherapy for at least two cycles were included in this study. A total of 35 single nucleotide polymorphisms (SNPs) in DSB repair, base excision repair (BER), and nucleotide excision repair (NER) repair pathway genes were genotyped, and were used to evaluate the overall survival (OS) and the progression-free survival (PFS) of patients who received platinum-based chemotherapy using Cox proportional hazard models. Results: The PFS of patients who carried the MAD2L2 rs746218 GG genotype was shorter than that in patients with the AG or AA genotypes (recessive model: p = 0.039, OR = 5.31, 95% CI = 1.09–25.93). Patients with the TT or GT genotypes of TNFRSF1A rs4149570 had shorter OS times than those with the GG genotype (dominant model: p = 0.030, OR = 0.57, 95% CI = 0.34–0.95). We also investigated the influence of age, gender, histology, smoking, stage, and metastasis in association between SNPs and OS or PFS in patients with lung cancer. DNA repair gene SNPs were significantly associated with PFS and OS in the subgroup analyses. Conclusion: Our study showed that variants in MAD2L2 rs746218 and TNFRSF1A rs4149570 were associated with shorter PFS or OS in patients with lung cancer who received platinum-based chemotherapy. These variants may be novel biomarkers for the prediction of prognosis of patients with lung cancer who receive platinum-based chemotherapy.
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Affiliation(s)
- Jun-Yan Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Ting Zou
- National Institution of Drug Clinical Trial, Xiangya Hospital, Central South University, Changsha, China
| | - Ji-Ye Yin
- Departments of Clinical Pharmacology, Xinagya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacology and Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| | - Zhan Wang
- Lung Cancer and Gastrointestinal Unit, Department of Medical Oncology, Hunan Cancer Hospital, Affiliated Cancer Hospital of Xiangya School of Medicine, Changsha, China
| | - Chong Liu
- Institute of Clinical Pharmacology and Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| | - Han-Xue Huang
- Institute of Clinical Pharmacology and Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| | - Fei-Xiang Ding
- Institute of Clinical Pharmacology and Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| | - Meng-Rong Lei
- Institute of Clinical Pharmacology and Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, China
| | - Ying Wang
- Hunan Clinical Research Center in Gynecologic Cancer, Hunan Cancer Hospital, Affiliated Cancer Hospital of Xiangya School of Medicine, Changsha, China
| | - Min Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Zhao-Qian Liu
- National Institution of Drug Clinical Trial, Xiangya Hospital, Central South University, Changsha, China
- Departments of Clinical Pharmacology, Xinagya Hospital, Central South University, Changsha, China
| | - Li-Ming Tan
- Department of Pharmacy, The Second People's Hospital of Huaihua City, Huaihua, China
| | - Juan Chen
- Department of Pharmacy, Xinagya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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28
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Zhang H, Chen Y, Jiang Y, Mao Z. DNA double-strand break repair and nucleic acid-related immunity. Acta Biochim Biophys Sin (Shanghai) 2022; 54:828-835. [PMID: 35975605 PMCID: PMC9828507 DOI: 10.3724/abbs.2022061] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
DNA damage repair and innate immunity are two conserved mechanisms that both function in cellular stress responses. Recently, an increasing amount of evidence has uncovered the close relationship between these two ancient biological processes. Here, we review the classical function of factors involved in DNA repair, and especially double-strand break repair, in innate immunity; more importantly, we discuss the novel roles of DNA repair factors in regulating innate immunity and vice versa. In addition, we also review the roles of DNA repair, innate immunity and their crosstalk in human diseases, which suggest that these two pathways may be compelling targets for disease prevention and treatment.
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Affiliation(s)
| | | | | | - Zhiyong Mao
- Correspondence address. Tel: +86-21-65978166; E-mail:
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29
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Benjamin R, Banerjee A, Wu X, Geurink C, Buczek L, Eames D, Trimidal SG, Pluth JM, Schiller MR. XRCC4 and MRE11 Roles and Transcriptional Response to Repair of TALEN-Induced Double-Strand DNA Breaks. Int J Mol Sci 2022; 23:ijms23020593. [PMID: 35054780 PMCID: PMC8776116 DOI: 10.3390/ijms23020593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/30/2021] [Accepted: 01/03/2022] [Indexed: 02/04/2023] Open
Abstract
Double-strand breaks (DSB) are one of the most lethal forms of DNA damage that, if left unrepaired, can lead to genomic instability, cellular transformation, and cell death. In this work, we examined how repair of transcription activator-like effector nuclease (TALEN)-induced DNA damage was altered when knocking out, or inhibiting a function of, two DNA repair proteins, XRCC4 and MRE11, respectively. We developed a fluorescent reporter assay that uses TALENs to introduce DSB and detected repair by the presence of GFP fluorescence. We observed repair of TALEN-induced breaks in the XRCC4 knockout cells treated with mirin (a pharmacological inhibitor of MRE11 exonuclease activity), albeit with ~40% reduced efficiency compared to normal cells. Editing in the absence of XRCC4 or MRE11 exonuclease was robust, with little difference between the indel profiles amongst any of the groups. Reviewing the transcriptional profiles of the mirin-treated XRCC4 knockout cells showed 307 uniquely differentially expressed genes, a number far greater than for either of the other cell lines (the HeLa XRCC4 knockout sample had 83 genes, and the mirin-treated HeLa cells had 30 genes uniquely differentially expressed). Pathways unique to the XRCC4 knockout+mirin group included differential expression of p53 downstream pathways, and metabolic pathways indicating cell adaptation for energy regulation and stress response. In conclusion, our study showed that TALEN-induced DSBs are repaired, even when a key DSB repair protein or protein function is not operational, without a change in indel profiles. However, transcriptional profiles indicate the induction of unique cellular responses dependent upon the DNA repair protein(s) hampered.
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Affiliation(s)
- Ronald Benjamin
- Nevada Institute of Personalized Medicine, University of Nevada Las Vegas, Las Vegas, NV 89154, USA; (A.B.); (X.W.); (C.G.); (L.B.); (D.E.); (S.G.T.)
- School of Life Science, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
- Correspondence: (R.B.); (M.R.S.); Tel.: +1-(702)927-9325 (R.B.); +1-(702)895-5546 (M.R.S.)
| | - Atoshi Banerjee
- Nevada Institute of Personalized Medicine, University of Nevada Las Vegas, Las Vegas, NV 89154, USA; (A.B.); (X.W.); (C.G.); (L.B.); (D.E.); (S.G.T.)
- School of Life Science, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
| | - Xiaogang Wu
- Nevada Institute of Personalized Medicine, University of Nevada Las Vegas, Las Vegas, NV 89154, USA; (A.B.); (X.W.); (C.G.); (L.B.); (D.E.); (S.G.T.)
| | - Corey Geurink
- Nevada Institute of Personalized Medicine, University of Nevada Las Vegas, Las Vegas, NV 89154, USA; (A.B.); (X.W.); (C.G.); (L.B.); (D.E.); (S.G.T.)
- School of Life Science, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
| | - Lindsay Buczek
- Nevada Institute of Personalized Medicine, University of Nevada Las Vegas, Las Vegas, NV 89154, USA; (A.B.); (X.W.); (C.G.); (L.B.); (D.E.); (S.G.T.)
- School of Life Science, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
| | - Danielle Eames
- Nevada Institute of Personalized Medicine, University of Nevada Las Vegas, Las Vegas, NV 89154, USA; (A.B.); (X.W.); (C.G.); (L.B.); (D.E.); (S.G.T.)
- School of Life Science, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
| | - Sara G. Trimidal
- Nevada Institute of Personalized Medicine, University of Nevada Las Vegas, Las Vegas, NV 89154, USA; (A.B.); (X.W.); (C.G.); (L.B.); (D.E.); (S.G.T.)
- School of Life Science, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
| | - Janice M. Pluth
- Health Physics and Diagnostic Sciences, University of Nevada Las Vegas, Las Vegas, NV 89154, USA;
| | - Martin R. Schiller
- Nevada Institute of Personalized Medicine, University of Nevada Las Vegas, Las Vegas, NV 89154, USA; (A.B.); (X.W.); (C.G.); (L.B.); (D.E.); (S.G.T.)
- School of Life Science, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
- Correspondence: (R.B.); (M.R.S.); Tel.: +1-(702)927-9325 (R.B.); +1-(702)895-5546 (M.R.S.)
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30
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TEX10 Promotes the Tumorigenesis and Radiotherapy Resistance of Urinary Bladder Carcinoma by Stabilizing XRCC6. J Immunol Res 2021; 2021:5975893. [PMID: 34966825 PMCID: PMC8712183 DOI: 10.1155/2021/5975893] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 08/10/2021] [Accepted: 09/12/2021] [Indexed: 11/26/2022] Open
Abstract
Urinary bladder carcinoma refers to the commonest carcinoma with weak prognostic result for the patient as impacted by the limited treatment possibilities and challenging diagnosing process. Nevertheless, the molecular underpinning of bladder carcinoma malignant progression is still not clear. As a novel core part of pluripotency circuitry, testicular expression 10 (TEX10) plays an actively noticeable effect on reprogramming, early embryo development, and embryonic stem cell self-renewal. Nevertheless, TEX10 expressions and functions within bladder carcinoma are still not known. The present work is aimed at revealing TEX10 expression and biological function within urinary bladder carcinoma and elucidating the potential mechanisms. Results showed that TEX10 is abundant in urinary bladder carcinoma, and its protein level was related to poor disease-free survival in a positive manner. Reduced TEX10 level inhibited urinary bladder carcinoma cell proliferating process and metastasis in vitro and xenograft tumorigenicity in vivo. Notably, TEX10 might regulate carcinoma cell proliferating process and metastasis via XRCC6, thereby controlling the signaling of Wnt/β-catenin and DNA repair channel. Moreover, TEX10 gene knockout reduced the radiotherapy resistance of urinary bladder carcinoma. In brief, this work revealed that TEX10 could exert a significant carcinogenic effect on urinary bladder carcinoma tumorigenesis and radiotherapy resistance through the activation of XRCC6-related channels. Accordingly, targeting TEX10 is likely to offer a novel and feasible therapeutically related strategy for inhibiting urinary bladder carcinoma tumorigenicity.
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31
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Mir SM, Aliarab A, Goodarzi G, Shirzad M, Jafari SM, Qujeq D, Samavarchi Tehrani S, Asadi J. Melatonin: A smart molecule in the DNA repair system. Cell Biochem Funct 2021; 40:4-16. [PMID: 34672014 DOI: 10.1002/cbf.3672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/03/2021] [Accepted: 10/02/2021] [Indexed: 12/14/2022]
Abstract
DNA repair is an important pathway for the protection of DNA molecules from destruction. DNA damage can be produced by oxidative reactive nitrogen or oxygen species, irritation, alkylating agents, depurination and depyrimidination; in this regard, DNA repair pathways can neutralize the negative effects of these factors. Melatonin is a hormone secreted from the pineal gland with an antioxidant effect by binding to oxidative factors. In addition, the effect of melatonin on DNA repair pathways has been proven by the literature. DNA repair is carried out by several mechanisms, of which homologous recombination repair (HRR) and non-homologous end-joining (NHEJ) are of great importance. Because of the importance of DNA repair in DNA integrity and the anticancer effect of this pathway, we presented the effect of melatonin on DNA repair factors regarding previous studies conducted in this area.
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Affiliation(s)
- Seyed Mostafa Mir
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Azadeh Aliarab
- Department of Clinical Biochemistry, School of Medicine, Tarbiat Modares University, Tehran, Iran
| | - Golnaz Goodarzi
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Student Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Moein Shirzad
- Department of Clinical Biochemistry, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran.,Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Seyyed Mehdi Jafari
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Durdi Qujeq
- Department of Clinical Biochemistry, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran.,Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Sadra Samavarchi Tehrani
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Student Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Jahanbakhsh Asadi
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
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32
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Zentout S, Smith R, Jacquier M, Huet S. New Methodologies to Study DNA Repair Processes in Space and Time Within Living Cells. Front Cell Dev Biol 2021; 9:730998. [PMID: 34589495 PMCID: PMC8473836 DOI: 10.3389/fcell.2021.730998] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/25/2021] [Indexed: 01/02/2023] Open
Abstract
DNA repair requires a coordinated effort from an array of factors that play different roles in the DNA damage response from recognizing and signaling the presence of a break, creating a repair competent environment, and physically repairing the lesion. Due to the rapid nature of many of these events, live-cell microscopy has become an invaluable method to study this process. In this review we outline commonly used tools to induce DNA damage under the microscope and discuss spatio-temporal analysis tools that can bring added information regarding protein dynamics at sites of damage. In particular, we show how to go beyond the classical analysis of protein recruitment curves to be able to assess the dynamic association of the repair factors with the DNA lesions as well as the target-search strategies used to efficiently find these lesions. Finally, we discuss how the use of mathematical models, combined with experimental evidence, can be used to better interpret the complex dynamics of repair proteins at DNA lesions.
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Affiliation(s)
- Siham Zentout
- Univ Rennes, CNRS, IGDR (Institut de Génétique et Développement de Rennes)-UMR 6290, BIOSIT-UMS 3480, Rennes, France
| | - Rebecca Smith
- Univ Rennes, CNRS, IGDR (Institut de Génétique et Développement de Rennes)-UMR 6290, BIOSIT-UMS 3480, Rennes, France
| | - Marine Jacquier
- Univ Rennes, CNRS, IGDR (Institut de Génétique et Développement de Rennes)-UMR 6290, BIOSIT-UMS 3480, Rennes, France
| | - Sébastien Huet
- Univ Rennes, CNRS, IGDR (Institut de Génétique et Développement de Rennes)-UMR 6290, BIOSIT-UMS 3480, Rennes, France
- Institut Universitaire de France, Paris, France
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33
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Guardians of the genome: DNA damage and repair. Essays Biochem 2021; 64:683-685. [PMID: 33094811 DOI: 10.1042/ebc20200109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 11/17/2022]
Abstract
This collection of reviews aims to summarise our current understanding of a fundamental question: how do we deal with DNA damage? After identifying key players that are important for this process, we are now starting to reveal the dynamic organisation of detecting and repairing DNA damage. Reviews in this issue provide an update on the exciting research progress that is happening now in this field and also initiate discussion about future challenges and directions that we are heading to.
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34
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Burgess JT, Cheong CM, Suraweera A, Sobanski T, Beard S, Dave K, Rose M, Boucher D, Croft LV, Adams MN, O'Byrne K, Richard DJ, Bolderson E. Barrier-to-autointegration-factor (Banf1) modulates DNA double-strand break repair pathway choice via regulation of DNA-dependent kinase (DNA-PK) activity. Nucleic Acids Res 2021; 49:3294-3307. [PMID: 33660778 PMCID: PMC8034644 DOI: 10.1093/nar/gkab110] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/04/2021] [Accepted: 02/23/2021] [Indexed: 01/07/2023] Open
Abstract
DNA repair pathways are essential to maintain the integrity of the genome and prevent cell death and tumourigenesis. Here, we show that the Barrier-to-Autointegration Factor (Banf1) protein has a role in the repair of DNA double-strand breaks. Banf1 is characterized as a nuclear envelope protein and mutations in Banf1 are associated with the severe premature aging syndrome, Néstor–Guillermo Progeria Syndrome. We have previously shown that Banf1 directly regulates the activity of PARP1 in the repair of oxidative DNA lesions. Here, we show that Banf1 also has a role in modulating DNA double-strand break repair through regulation of the DNA-dependent Protein Kinase catalytic subunit, DNA-PKcs. Specifically, we demonstrate that Banf1 relocalizes from the nuclear envelope to sites of DNA double-strand breaks. We also show that Banf1 can bind to and directly inhibit the activity of DNA-PKcs. Supporting this, cellular depletion of Banf1 leads to an increase in non-homologous end-joining and a decrease in homologous recombination, which our data suggest is likely due to unrestrained DNA-PKcs activity. Overall, this study identifies how Banf1 regulates double-strand break repair pathway choice by modulating DNA-PKcs activity to control genome stability within the cell.
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Affiliation(s)
- Joshua T Burgess
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
| | - Chee Man Cheong
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
| | - Amila Suraweera
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
| | - Thais Sobanski
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
| | - Sam Beard
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
| | - Keyur Dave
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
| | - Maddison Rose
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
| | - Didier Boucher
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
| | - Laura V Croft
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
| | - Mark N Adams
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
| | - Kenneth O'Byrne
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia.,Princess Alexandra Hospital, Ipswich Road, Woolloongabba, Brisbane, Queensland 4102, Australia
| | - Derek J Richard
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
| | - Emma Bolderson
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Brisbane, Australia
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Origin, Regulation, and Fitness Effect of Chromosomal Rearrangements in the Yeast Saccharomyces cerevisiae. Int J Mol Sci 2021; 22:ijms22020786. [PMID: 33466757 PMCID: PMC7830279 DOI: 10.3390/ijms22020786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/02/2021] [Accepted: 01/11/2021] [Indexed: 11/16/2022] Open
Abstract
Chromosomal rearrangements comprise unbalanced structural variations resulting in gain or loss of DNA copy numbers, as well as balanced events including translocation and inversion that are copy number neutral, both of which contribute to phenotypic evolution in organisms. The exquisite genetic assay and gene editing tools available for the model organism Saccharomyces cerevisiae facilitate deep exploration of the mechanisms underlying chromosomal rearrangements. We discuss here the pathways and influential factors of chromosomal rearrangements in S. cerevisiae. Several methods have been developed to generate on-demand chromosomal rearrangements and map the breakpoints of rearrangement events. Finally, we highlight the contributions of chromosomal rearrangements to drive phenotypic evolution in various S. cerevisiae strains. Given the evolutionary conservation of DNA replication and recombination in organisms, the knowledge gathered in the small genome of yeast can be extended to the genomes of higher eukaryotes.
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36
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Sims J, Rabanal FA, Elgert C, von Haeseler A, Schlögelhofer P. It Is Just a Matter of Time: Balancing Homologous Recombination and Non-homologous End Joining at the rDNA Locus During Meiosis. FRONTIERS IN PLANT SCIENCE 2021; 12:773052. [PMID: 34777453 PMCID: PMC8580885 DOI: 10.3389/fpls.2021.773052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/04/2021] [Indexed: 05/17/2023]
Abstract
Ribosomal RNA genes (rDNAs) are located in large domains of hundreds of rDNA units organized in a head-to-tail manner. The proper and stable inheritance of rDNA clusters is of paramount importance for survival. Yet, these highly repetitive elements pose a potential risk to the genome since they can undergo non-allelic exchanges. Here, we review the current knowledge of the organization of the rDNA clusters in Arabidopsis thaliana and their stability during meiosis. Recent findings suggest that during meiosis, all rDNA loci are embedded within the nucleolus favoring non-homologous end joining (NHEJ) as a repair mechanism, while DNA repair via homologous recombination (HR) appears to be a rare event. We propose a model where (1) frequent meiotic NHEJ events generate abundant single nucleotide polymorphisms and insertions/deletions within the rDNA, resulting in a heterogeneous population of rDNA units and (2) rare HR events dynamically change rDNA unit numbers, only to be observed in large populations over many generations. Based on the latest efforts to delineate the entire rDNA sequence in A. thaliana, we discuss evidence supporting this model. The results compiled so far draw a surprising picture of rDNA sequence heterogeneity between individual units. Furthermore, rDNA cluster sizes have been recognized as relatively stable when observing less than 10 generations, yet emerged as major determinant of genome size variation between different A. thaliana ecotypes. The sequencing efforts also revealed that transcripts from the diverse rDNA units yield heterogenous ribosome populations with potential functional implications. These findings strongly motivate further research to understand the mechanisms that maintain the metastable state of rDNA loci.
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Affiliation(s)
- Jason Sims
- Department of Chromosome Biology, Max Perutz Labs, University of Vienna, Vienna BioCenter, Vienna, Austria
- *Correspondence: Jason Sims,
| | - Fernando A. Rabanal
- Department of Molecular Biology, Max Planck Institute for Developmental Biology, Tübingen, Germany
| | - Christiane Elgert
- Center for Integrative Bioinformatics Vienna (CIBIV), Max Perutz Labs, University of Vienna and Medical University of Vienna, Vienna BioCenter, Vienna, Austria
| | - Arndt von Haeseler
- Center for Integrative Bioinformatics Vienna (CIBIV), Max Perutz Labs, University of Vienna and Medical University of Vienna, Vienna BioCenter, Vienna, Austria
- Bioinformatics and Computational Biology, Faculty of Computer Science, University of Vienna, Vienna, Austria
| | - Peter Schlögelhofer
- Department of Chromosome Biology, Max Perutz Labs, University of Vienna, Vienna BioCenter, Vienna, Austria
- Peter Schlögelhofer,
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Geomagnetic Shielding Enhances Radiation Resistance by Promoting DNA Repair Process in Human Bronchial Epithelial Cells. Int J Mol Sci 2020; 21:ijms21239304. [PMID: 33291307 PMCID: PMC7730591 DOI: 10.3390/ijms21239304] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/03/2020] [Accepted: 12/05/2020] [Indexed: 01/28/2023] Open
Abstract
With the advent of long-duration space explorations, ionizing radiation (IR) may pose a constant threat to astronauts without the protection of Earth’s magnetic field, or hypomagnetic field (HMF). However, the potential biological effects of a HMF on the cellular response to IR have not been well characterized so far. In this study, immortalized human bronchial epithelial cells were exposed to X-rays under either a geomagnetic field (GMF, ~50 uT) or HMF (<50 nT) culture condition. A significant increase of the cell survival rate in HMF after radiation was observed by colony formation analysis. The kinetics of DNA double-strand breaks (DSBs), determined by γH2AX foci formation and disappearance, presented a faster decrease of foci-positive cells and a significantly lower mean number of γH2AX foci per nucleus in HMF-cultured cells than in GMF-cultured cells after radiation. In addition, a γH2AX/53BP1 colocalization assay showed an upregulated DSB recovery rate in HMF cultured cells. These findings provided the first evidence that HMF exposure may enhance the cellular DSB repair efficiency upon radiation, and consequently modulate the genotoxic effects of IR.
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