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Wu J, Jiang Y, Zhang Q, Mao X, Wu T, Hao M, Zhang S, Meng Y, Wan X, Qiu L, Han J. KDM6A-SND1 interaction maintains genomic stability by protecting the nascent DNA and contributes to cancer chemoresistance. Nucleic Acids Res 2024; 52:7665-7686. [PMID: 38850159 PMCID: PMC11260493 DOI: 10.1093/nar/gkae487] [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: 09/16/2023] [Revised: 05/22/2024] [Accepted: 05/26/2024] [Indexed: 06/10/2024] Open
Abstract
Genomic instability is one of the hallmarks of cancer. While loss of histone demethylase KDM6A increases the risk of tumorigenesis, its specific role in maintaining genomic stability remains poorly understood. Here, we propose a mechanism in which KDM6A maintains genomic stability independently on its demethylase activity. This occurs through its interaction with SND1, resulting in the establishment of a protective chromatin state that prevents replication fork collapse by recruiting of RPA and Ku70 to nascent DNA strand. Notably, KDM6A-SND1 interaction is up-regulated by KDM6A SUMOylation, while KDM6AK90A mutation almost abolish the interaction. Loss of KDM6A or SND1 leads to increased enrichment of H3K9ac and H4K8ac but attenuates the enrichment of Ku70 and H3K4me3 at nascent DNA strand. This subsequently results in enhanced cellular sensitivity to genotoxins and genomic instability. Consistent with these findings, knockdown of KDM6A and SND1 in esophageal squamous cell carcinoma (ESCC) cells increases genotoxin sensitivity. Intriguingly, KDM6A H101D & P110S, N1156T and D1216N mutations identified in ESCC patients promote genotoxin resistance via increased SND1 association. Our finding provides novel insights into the pivotal role of KDM6A-SND1 in genomic stability and chemoresistance, implying that targeting KDM6A and/or its interaction with SND1 may be a promising strategy to overcome the chemoresistance.
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Affiliation(s)
- Jian Wu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yixin Jiang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qin Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaobing Mao
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Tong Wu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Mengqiu Hao
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Su Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yang Meng
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaowen Wan
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lei Qiu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Junhong Han
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
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Sak A, Kübler D, Bannik K, Groneberg M, Strunz S, Kriehuber R, Stuschke M. Epigenetic silencing and activation of transcription: influence on the radiation sensitivity of glioma cell lines. Int J Radiat Biol 2017; 93:494-506. [DOI: 10.1080/09553002.2017.1270472] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ali Sak
- Department of Radiotherapy, University Hospital Essen, Essen, Germany
| | - Dennis Kübler
- Department of Radiotherapy, University Hospital Essen, Essen, Germany
| | - Kristina Bannik
- Department of Radiotherapy, University Hospital Essen, Essen, Germany
| | - Michael Groneberg
- Department of Radiotherapy, University Hospital Essen, Essen, Germany
| | - Sonja Strunz
- Department of Biomathematics and Bioinformatics, Institute of Genetics and Biometry, Leibniz-Institute for Farm Animal Biology, Dummerstorf, Germany
| | - Ralf Kriehuber
- Department of Safety and Radiation Protection, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Martin Stuschke
- Department of Radiotherapy, University Hospital Essen, Essen, Germany
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Jiang Y, Yan B, Lai W, Shi Y, Xiao D, Jia J, Liu S, Li H, Lu J, Li Z, Chen L, Chen X, Sun L, Muegge K, Cao Y, Tao Y. Repression of Hox genes by LMP1 in nasopharyngeal carcinoma and modulation of glycolytic pathway genes by HoxC8. Oncogene 2015; 34:6079-91. [PMID: 25745994 PMCID: PMC4564361 DOI: 10.1038/onc.2015.53] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 12/11/2014] [Accepted: 12/16/2014] [Indexed: 12/26/2022]
Abstract
Epstein-Barr virus (EBV) causes human lymphoid malignancies, and the EBV product latent membrane protein 1 (LMP1) has been identified as an oncogene in epithelial carcinomas such as nasopharyngeal carcinoma (NPC). EBV can epigenetically reprogram lymphocyte-specific processes and induce cell immortalization. However, the interplay between LMP1 and the NPC host cell remains largely unknown. Here, we report that LMP1 is important to establish the Hox gene expression signature in NPC cell lines and tumor biopsies. LMP1 induces repression of several Hox genes in part via stalling of RNA polymerase II (RNA Pol II). Pol II stalling can be overcome by irradiation involving the epigenetic regulator TET3. Furthermore, we report that HoxC8, one of the genes silenced by LMP1, has a role in tumor growth. Ectopic expression of HoxC8 inhibits NPC cell growth in vitro and in vivo, modulates glycolysis and regulates the expression of tricarboxylic acid (TCA) cycle-related genes. We propose that viral latency products may repress via stalling key mediators that in turn modulate glycolysis.
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Affiliation(s)
- Yiqun Jiang
- Cancer Research Institute, Central South University, Changsha, Hunan, 410078 China
- Center for Molecular Imaging, Central South University, Changsha, Hunan, 410078 China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, 410078 China
- Key Laboratory of Carcinogenesis, Ministry of Health, Hunan, 410078 China
| | - Bin Yan
- Cancer Research Institute, Central South University, Changsha, Hunan, 410078 China
- Center for Molecular Imaging, Central South University, Changsha, Hunan, 410078 China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, 410078 China
- Key Laboratory of Carcinogenesis, Ministry of Health, Hunan, 410078 China
| | - Weiwei Lai
- Cancer Research Institute, Central South University, Changsha, Hunan, 410078 China
- Center for Molecular Imaging, Central South University, Changsha, Hunan, 410078 China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, 410078 China
- Key Laboratory of Carcinogenesis, Ministry of Health, Hunan, 410078 China
| | - Ying Shi
- Cancer Research Institute, Central South University, Changsha, Hunan, 410078 China
- Center for Molecular Imaging, Central South University, Changsha, Hunan, 410078 China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, 410078 China
- Key Laboratory of Carcinogenesis, Ministry of Health, Hunan, 410078 China
| | - Desheng Xiao
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan 410078 China
| | - Jiantao Jia
- Cancer Research Institute, Central South University, Changsha, Hunan, 410078 China
- Center for Medicine Research, Xiangya Hospital, Central South University, Changsha, Hunan, 410008 China
| | - Shuang Liu
- Center for Medicine Research, Xiangya Hospital, Central South University, Changsha, Hunan, 410008 China
| | - Hongde Li
- Cancer Research Institute, Central South University, Changsha, Hunan, 410078 China
- Center for Molecular Imaging, Central South University, Changsha, Hunan, 410078 China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, 410078 China
- Key Laboratory of Carcinogenesis, Ministry of Health, Hunan, 410078 China
| | - Jinchen Lu
- Cancer Research Institute, Central South University, Changsha, Hunan, 410078 China
- Center for Molecular Imaging, Central South University, Changsha, Hunan, 410078 China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, 410078 China
- Key Laboratory of Carcinogenesis, Ministry of Health, Hunan, 410078 China
| | - Zhi Li
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, 410008 China
| | - Ling Chen
- Cancer Research Institute, Central South University, Changsha, Hunan, 410078 China
- Center for Molecular Imaging, Central South University, Changsha, Hunan, 410078 China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, 410078 China
- Key Laboratory of Carcinogenesis, Ministry of Health, Hunan, 410078 China
| | - Xue Chen
- Cancer Research Institute, Central South University, Changsha, Hunan, 410078 China
- Center for Molecular Imaging, Central South University, Changsha, Hunan, 410078 China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, 410078 China
- Key Laboratory of Carcinogenesis, Ministry of Health, Hunan, 410078 China
| | - Lunqun Sun
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, 410008 China
| | - Kathrin Muegge
- Mouse Cancer Genetics Program, National Cancer Institute, Basic Science Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, USA
| | - Ya Cao
- Cancer Research Institute, Central South University, Changsha, Hunan, 410078 China
- Center for Molecular Imaging, Central South University, Changsha, Hunan, 410078 China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, 410078 China
- Key Laboratory of Carcinogenesis, Ministry of Health, Hunan, 410078 China
| | - Yongguang Tao
- Cancer Research Institute, Central South University, Changsha, Hunan, 410078 China
- Center for Molecular Imaging, Central South University, Changsha, Hunan, 410078 China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, 410078 China
- Key Laboratory of Carcinogenesis, Ministry of Health, Hunan, 410078 China
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Li Z, Mon H, Mitsunobu H, Zhu L, Xu J, Lee JM, Kusakabe T. Dynamics of polycomb proteins-mediated histone modifications during UV irradiation-induced DNA damage. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2014; 55:9-18. [PMID: 25308962 DOI: 10.1016/j.ibmb.2014.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 09/28/2014] [Accepted: 10/02/2014] [Indexed: 06/04/2023]
Abstract
Polycomb group (PcG) complexes are known to be chromatin modifiers and transcriptional repressors. In this work, we reported that the histone-modifying PcG complexes are able to participate in the repair process of ultraviolet (UV)-induced DNA lesions in the silkworm, Bombyx mori. The silkworm cells with depletion of PcG genes showed hypersensitive to UV-C irradiation and increased inhibition of cell proliferation. Interestingly, an SQ site in the silkworm-human chimeric H2A protein synthesized here was phosphorylated rapidly upon UV-C exposure, which could be used as a marker for monitoring the response to DNA damage in silkworm cells. Under these UV-C irradiated conditions, we found that PRC1-mediated ubiquitylation of H2AX, but not of H2AZ, were decreased and this deubiquitylation was independent of its phosphorylation event. In contrast, UV-C irradiation induced the increase of trimethylation of lysine 27 on histone H3 (H3K27me3), a mark of transcriptionally silent chromatin catalyzed by another PcG subcomplex, PRC2. Collectively, we provided the first evidence on chromatin remodeling in response to UV-C lesion in silkworm and revealed another layer role for PcG complexes-mediated histone modifications in contributing to creating an open chromatin structure for the efficient repair of DNA damages.
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Affiliation(s)
- Zhiqing Li
- Laboratory of Silkworm Science, Kyushu University Graduate School of Bioresource and Bioenvironmental Sciences, Hakozaki 6-10-1, Fukuoka 812-8581, Japan
| | - Hiroaki Mon
- Laboratory of Silkworm Science, Kyushu University Graduate School of Bioresource and Bioenvironmental Sciences, Hakozaki 6-10-1, Fukuoka 812-8581, Japan
| | - Hitoshi Mitsunobu
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Li Zhu
- Laboratory of Silkworm Science, Kyushu University Graduate School of Bioresource and Bioenvironmental Sciences, Hakozaki 6-10-1, Fukuoka 812-8581, Japan
| | - Jian Xu
- Laboratory of Silkworm Science, Kyushu University Graduate School of Bioresource and Bioenvironmental Sciences, Hakozaki 6-10-1, Fukuoka 812-8581, Japan
| | - Jae Man Lee
- Laboratory of Silkworm Science, Kyushu University Graduate School of Bioresource and Bioenvironmental Sciences, Hakozaki 6-10-1, Fukuoka 812-8581, Japan
| | - Takahiro Kusakabe
- Laboratory of Silkworm Science, Kyushu University Graduate School of Bioresource and Bioenvironmental Sciences, Hakozaki 6-10-1, Fukuoka 812-8581, Japan.
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