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Bin Y, Ren J, Zhang H, Zhang T, Liu P, Xin Z, Yang H, Feng Z, Chen Z, Zhang H. Against all odds: The road to success in the development of human immune reconstitution mice. Animal Model Exp Med 2024; 7:460-470. [PMID: 38591343 PMCID: PMC11369039 DOI: 10.1002/ame2.12407] [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: 02/01/2024] [Accepted: 03/17/2024] [Indexed: 04/10/2024] Open
Abstract
The mouse genome has a high degree of homology with the human genome, and its physiological, biochemical, and developmental regulation mechanisms are similar to those of humans; therefore, mice are widely used as experimental animals. However, it is undeniable that interspecies differences between humans and mice can lead to experimental errors. The differences in the immune system have become an important factor limiting current immunological research. The application of immunodeficient mice provides a possible solution to these problems. By transplanting human immune cells or tissues, such as peripheral blood mononuclear cells or hematopoietic stem cells, into immunodeficient mice, a human immune system can be reconstituted in the mouse body, and the engrafted immune cells can elicit human-specific immune responses. Researchers have been actively exploring the development and differentiation conditions of host recipient animals and grafts in order to achieve better immune reconstitution. Through genetic engineering methods, immunodeficient mice can be further modified to provide a favorable developmental and differentiation microenvironment for the grafts. From initially only being able to reconstruct single T lymphocyte lineages, it is now possible to reconstruct lymphoid and myeloid cells, providing important research tools for immunology-related studies. In this review, we compare the differences in immune systems of humans and mice, describe the development history of human immune reconstitution from the perspectives of immunodeficient mice and grafts, and discuss the latest advances in enhancing the efficiency of human immune cell reconstitution, aiming to provide important references for immunological related researches.
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Affiliation(s)
- Yixiao Bin
- School of Basic Medical SciencesShaanxi University of Chinese MedicineXianyangChina
- Department of Cell Biology, National Translational Science Center for Molecular MedicineFourth Military Medical UniversityXi'anChina
- State Key Laboratory of New Targets Discovery and Drug Development for Major DiseasesFourth Military Medical UniversityXi'anChina
| | - Jing Ren
- School of Basic Medical SciencesShaanxi University of Chinese MedicineXianyangChina
- Department of Cell Biology, National Translational Science Center for Molecular MedicineFourth Military Medical UniversityXi'anChina
- State Key Laboratory of New Targets Discovery and Drug Development for Major DiseasesFourth Military Medical UniversityXi'anChina
| | - Haowei Zhang
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public HealthFourth Military Medical UniversityXi'anChina
| | - Tianjiao Zhang
- Department of Cell Biology, National Translational Science Center for Molecular MedicineFourth Military Medical UniversityXi'anChina
- State Key Laboratory of New Targets Discovery and Drug Development for Major DiseasesFourth Military Medical UniversityXi'anChina
| | - Peijuan Liu
- Department of Cell Biology, National Translational Science Center for Molecular MedicineFourth Military Medical UniversityXi'anChina
- State Key Laboratory of New Targets Discovery and Drug Development for Major DiseasesFourth Military Medical UniversityXi'anChina
| | - Zhiqian Xin
- Department of Cell Biology, National Translational Science Center for Molecular MedicineFourth Military Medical UniversityXi'anChina
- State Key Laboratory of New Targets Discovery and Drug Development for Major DiseasesFourth Military Medical UniversityXi'anChina
| | - Haijiao Yang
- Department of Cell Biology, National Translational Science Center for Molecular MedicineFourth Military Medical UniversityXi'anChina
- State Key Laboratory of New Targets Discovery and Drug Development for Major DiseasesFourth Military Medical UniversityXi'anChina
| | - Zhuan Feng
- Department of Cell Biology, National Translational Science Center for Molecular MedicineFourth Military Medical UniversityXi'anChina
- State Key Laboratory of New Targets Discovery and Drug Development for Major DiseasesFourth Military Medical UniversityXi'anChina
| | - Zhinan Chen
- Department of Cell Biology, National Translational Science Center for Molecular MedicineFourth Military Medical UniversityXi'anChina
- State Key Laboratory of New Targets Discovery and Drug Development for Major DiseasesFourth Military Medical UniversityXi'anChina
| | - Hai Zhang
- Department of Cell Biology, National Translational Science Center for Molecular MedicineFourth Military Medical UniversityXi'anChina
- State Key Laboratory of New Targets Discovery and Drug Development for Major DiseasesFourth Military Medical UniversityXi'anChina
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Camfield S, Chakraborty S, Dwivedi SKD, Pramanik PK, Mukherjee P, Bhattacharya R. Secrets of DNA-PKcs beyond DNA repair. NPJ Precis Oncol 2024; 8:154. [PMID: 39043779 PMCID: PMC11266574 DOI: 10.1038/s41698-024-00655-1] [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: 12/14/2023] [Accepted: 07/15/2024] [Indexed: 07/25/2024] Open
Abstract
The canonical role of the DNA-dependent protein kinase catalytic subunit (DNA-PKcs) in repairing DNA double-strand breaks combined with its reported dysregulation in several malignancies has driven the development of DNA-PKcs inhibitors as therapeutics. However, until recently the relationship between DNA-PKcs and tumorigenesis has been primarily investigated with regard to its role in non-homologous end joining (NHEJ) repair. Emerging research has uncovered non-canonical DNA-PKcs functions involved with transcriptional regulation, telomere maintenance, metabolic regulation, and immune signaling all of which may also impinge on tumorigenesis. This review mainly discusses these non-canonical roles of DNA-PKcs in cellular biology and their potential contribution to tumorigenesis, as well as evaluating the implications of targeting DNA-PKcs for cancer therapy.
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Affiliation(s)
- Sydney Camfield
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Sayan Chakraborty
- Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Shailendra Kumar Dhar Dwivedi
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Pijush Kanti Pramanik
- Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Priyabrata Mukherjee
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Resham Bhattacharya
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
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3
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Wu J, Song L, Lu M, Gao Q, Xu S, Zhou P, Ma T. The multifaceted functions of DNA-PKcs: implications for the therapy of human diseases. MedComm (Beijing) 2024; 5:e613. [PMID: 38898995 PMCID: PMC11185949 DOI: 10.1002/mco2.613] [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: 08/10/2023] [Revised: 05/07/2024] [Accepted: 05/09/2024] [Indexed: 06/21/2024] Open
Abstract
The DNA-dependent protein kinase (DNA-PK), catalytic subunit, also known as DNA-PKcs, is complexed with the heterodimer Ku70/Ku80 to form DNA-PK holoenzyme, which is well recognized as initiator in the nonhomologous end joining (NHEJ) repair after double strand break (DSB). During NHEJ, DNA-PKcs is essential for both DNA end processing and end joining. Besides its classical function in DSB repair, DNA-PKcs also shows multifaceted functions in various biological activities such as class switch recombination (CSR) and variable (V) diversity (D) joining (J) recombination in B/T lymphocytes development, innate immunity through cGAS-STING pathway, transcription, alternative splicing, and so on, which are dependent on its function in NHEJ or not. Moreover, DNA-PKcs deficiency has been proven to be related with human diseases such as neurological pathogenesis, cancer, immunological disorder, and so on through different mechanisms. Therefore, it is imperative to summarize the latest findings about DNA-PKcs and diseases for better targeting DNA-PKcs, which have shown efficacy in cancer treatment in preclinical models. Here, we discuss the multifaceted roles of DNA-PKcs in human diseases, meanwhile, we discuss the progresses of DNA-PKcs inhibitors and their potential in clinical trials. The most updated review about DNA-PKcs will hopefully provide insights and ideas to understand DNA-PKcs associated diseases.
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Affiliation(s)
- Jinghong Wu
- Cancer Research CenterBeijing Chest HospitalCapital Medical University/Beijing Tuberculosis and Thoracic Tumor Research InstituteBeijingChina
| | - Liwei Song
- Department of Thoracic SurgeryBeijing Chest HospitalCapital Medical University, Beijing Tuberculosis and Thoracic Tumor Research InstituteBeijingChina
| | - Mingjun Lu
- Cancer Research CenterBeijing Chest HospitalCapital Medical University/Beijing Tuberculosis and Thoracic Tumor Research InstituteBeijingChina
| | - Qing Gao
- Cancer Research CenterBeijing Chest HospitalCapital Medical University/Beijing Tuberculosis and Thoracic Tumor Research InstituteBeijingChina
| | - Shaofa Xu
- Department of Thoracic SurgeryBeijing Chest HospitalCapital Medical University, Beijing Tuberculosis and Thoracic Tumor Research InstituteBeijingChina
| | - Ping‐Kun Zhou
- Beijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Teng Ma
- Cancer Research CenterBeijing Chest HospitalCapital Medical University/Beijing Tuberculosis and Thoracic Tumor Research InstituteBeijingChina
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4
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Zhang H, Jiang L, Du X, Qian Z, Wu G, Jiang Y, Mao Z. The cGAS-Ku80 complex regulates the balance between two end joining subpathways. Cell Death Differ 2024; 31:792-803. [PMID: 38664591 PMCID: PMC11164703 DOI: 10.1038/s41418-024-01296-4] [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: 10/26/2023] [Revised: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 06/12/2024] Open
Abstract
As the major DNA sensor that activates the STING-TBK1 signaling cascade, cGAS is mainly present in the cytosol. A number of recent reports have indicated that cGAS also plays critical roles in the nucleus. Our previous work demonstrated for the first time that cGAS is translocated to the nucleus upon the occurrence of DNA damage and inhibits homologous recombination (HR), one of the two major pathways of DNA double strand break (DSB) repair. However, whether nuclear cGAS regulates the other DSB repair pathway, nonhomologous end joining (NHEJ), which can be further divided into the less error-prone canonical NHEJ (c-NHEJ) and more mutagenic alternative NHEJ (alt-NHEJ) subpathways, has not been characterized. Here, we demonstrated that cGAS tipped the balance of the two NHEJ subpathways toward c-NHEJ. Mechanistically, the cGAS-Ku80 complex enhanced the interaction between DNA-PKcs and the deubiquitinase USP7 to improve DNA-PKcs protein stability, thereby promoting c-NHEJ. In contrast, the cGAS-Ku80 complex suppressed alt-NHEJ by directly binding to the promoter of Polθ to suppress its transcription. Together, these findings reveal a novel function of nuclear cGAS in regulating DSB repair, suggesting that the presence of cGAS in the nucleus is also important in the maintenance of genome integrity.
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Affiliation(s)
- Haiping Zhang
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Lijun Jiang
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Xinyi Du
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Zhen Qian
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Guizhu Wu
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China.
| | - Ying Jiang
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China.
| | - Zhiyong Mao
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China.
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5
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Sonmez C, Toia B, Eickhoff P, Matei AM, El Beyrouthy M, Wallner B, Douglas ME, de Lange T, Lottersberger F. DNA-PK controls Apollo's access to leading-end telomeres. Nucleic Acids Res 2024; 52:4313-4327. [PMID: 38407308 PMCID: PMC11077071 DOI: 10.1093/nar/gkae105] [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: 05/19/2023] [Revised: 01/23/2024] [Accepted: 02/01/2024] [Indexed: 02/27/2024] Open
Abstract
The complex formed by Ku70/80 and DNA-PKcs (DNA-PK) promotes the synapsis and the joining of double strand breaks (DSBs) during canonical non-homologous end joining (c-NHEJ). In c-NHEJ during V(D)J recombination, DNA-PK promotes the processing of the ends and the opening of the DNA hairpins by recruiting and/or activating the nuclease Artemis/DCLRE1C/SNM1C. Paradoxically, DNA-PK is also required to prevent the fusions of newly replicated leading-end telomeres. Here, we describe the role for DNA-PK in controlling Apollo/DCLRE1B/SNM1B, the nuclease that resects leading-end telomeres. We show that the telomeric function of Apollo requires DNA-PKcs's kinase activity and the binding of Apollo to DNA-PK. Furthermore, AlphaFold-Multimer predicts that Apollo's nuclease domain has extensive additional interactions with DNA-PKcs, and comparison to the cryo-EM structure of Artemis bound to DNA-PK phosphorylated on the ABCDE/Thr2609 cluster suggests that DNA-PK can similarly grant Apollo access to the DNA end. In agreement, the telomeric function of DNA-PK requires the ABCDE/Thr2609 cluster. These data reveal that resection of leading-end telomeres is regulated by DNA-PK through its binding to Apollo and its (auto)phosphorylation-dependent positioning of Apollo at the DNA end, analogous but not identical to DNA-PK dependent regulation of Artemis at hairpins.
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Affiliation(s)
- Ceylan Sonmez
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping 58 183, Sweden
| | - Beatrice Toia
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping 58 183, Sweden
| | - Patrik Eickhoff
- Chester Beatty Laboratories, The Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
| | - Andreea Medeea Matei
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping 58 183, Sweden
| | - Michael El Beyrouthy
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping 58 183, Sweden
| | - Björn Wallner
- Department of Physics, Chemistry and Biology, Linköping University, Linköping 58 183, Sweden
| | - Max E Douglas
- Chester Beatty Laboratories, The Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
| | - Titia de Lange
- Laboratory for Cell Biology and Genetics, The Rockefeller University, 1230 York Avenue, NY, NY 10021, USA
| | - Francisca Lottersberger
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping 58 183, Sweden
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Bin Y, Wei S, Chen R, Zhang H, Ren J, Liu P, Xin Z, Zhang T, Yang H, Wang K, Feng Z, Sun X, Chen Z, Zhang H. Dclre1c-Mutation-Induced Immunocompromised Mice Are a Novel Model for Human Xenograft Research. Biomolecules 2024; 14:180. [PMID: 38397417 PMCID: PMC10887050 DOI: 10.3390/biom14020180] [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: 11/08/2023] [Revised: 01/20/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
Severe combined immunodeficient (SCID) mice serve as a critical model for human xenotransplantation studies, yet they often suffer from low engraftment rates and susceptibility to graft-versus-host disease (GVHD). Moreover, certain SCID strains demonstrate 'immune leakage', underscoring the need for novel model development. Here, we introduce an SCID mouse model with a targeted disruption of the dclre1c gene, encoding Artemis, which is essential for V(D)J recombination and DNA repair during T cell receptor (TCR) and B cell receptor (BCR) assembly. Artemis deficiency precipitates a profound immunodeficiency syndrome, marked by radiosensitivity and compromised T and B lymphocyte functionality. Utilizing CRISPR/Cas9-mediated gene editing, we generated dclre1c-deficient mice with an NOD genetic background. These mice exhibited a radiosensitive SCID phenotype, with pronounced DNA damage and defective thymic, splenic and lymph node development, culminating in reduced T and B lymphocyte populations. Notably, both cell lines and patient-derived tumor xenografts were successfully engrafted into these mice. Furthermore, the human immune system was effectively rebuilt following peripheral blood mononuclear cells (PBMCs) transplantation. The dclre1c-knockout NOD mice described herein represent a promising addition to the armamentarium of models for xenotransplantation, offering a valuable platform for advancing human immunobiological research.
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Affiliation(s)
- Yixiao Bin
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
- School of Basic Medical Sciences, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Sanhua Wei
- Department of Obstetrics and Gynecology, Reproductive Medicine Center, Tang Du Hospital, Fourth Military Medical University, Xi’an 710038, China;
| | - Ruo Chen
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
| | - Haowei Zhang
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi’an 710032, China;
| | - Jing Ren
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
- School of Basic Medical Sciences, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Peijuan Liu
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
| | - Zhiqian Xin
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
| | - Tianjiao Zhang
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
| | - Haijiao Yang
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
| | - Ke Wang
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
| | - Zhuan Feng
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
| | - Xiuxuan Sun
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
| | - Zhinan Chen
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
| | - Hai Zhang
- Department of Cell Biology, National Translational Science Center for Molecular Medicine, Fourth Military Medical University, Xi’an 710032, China; (Y.B.); (R.C.); (J.R.); (P.L.); (Z.X.); (T.Z.); (H.Y.); (K.W.); (Z.F.); (X.S.)
- State Key Laboratory of New Targets Discovery and Drug Development for Major Diseases, Fourth Military Medical University, Xi’an 710032, China
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Hristova DB, Oliveira M, Wagner E, Melcher A, Harrington KJ, Belot A, Ferguson BJ. DNA-PKcs is required for cGAS/STING-dependent viral DNA sensing in human cells. iScience 2024; 27:108760. [PMID: 38269102 PMCID: PMC10805666 DOI: 10.1016/j.isci.2023.108760] [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: 01/26/2023] [Revised: 09/21/2023] [Accepted: 12/13/2023] [Indexed: 01/26/2024] Open
Abstract
To mount an efficient interferon response to virus infection, intracellular pattern recognition receptors (PRRs) sense viral nucleic acids and activate anti-viral gene transcription. The mechanisms by which intracellular DNA and DNA viruses are sensed are relevant not only to anti-viral innate immunity, but also to autoinflammation and anti-tumour immunity through the initiation of sterile inflammation by self-DNA recognition. The PRRs that directly sense and respond to viral or damaged self-DNA function by signaling to activate interferon regulatory factor (IRF)-dependent type one interferon (IFN-I) transcription. We and others have previously defined DNA-dependent protein kinase (DNA-PK) as an essential component of the DNA-dependent anti-viral innate immune system. Here, we show that DNA-PK is essential for cyclic GMP-AMP synthase (cGAS)- and stimulator of interferon genes (STING)-dependent IFN-I responses in human cells during stimulation with exogenous DNA and infection with DNA viruses.
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Affiliation(s)
- Dayana B. Hristova
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Marisa Oliveira
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Emma Wagner
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
| | - Alan Melcher
- The Institute of Cancer Research, London SW7 3RP, UK
| | | | - Alexandre Belot
- Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard, Lyon, France
| | - Brian J. Ferguson
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK
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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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9
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Ghadimi S, Jamee M, Abolhassani H, Parvaneh N, Rezaei N, Delavari S, Sadeghi-Shabestari M, Tabatabaei SR, Fahimzad A, Armin S, Chavoshzadeh Z, Sharafian S. Demographic, clinical, immunological, and molecular features of iranian national cohort of patients with defect in DCLRE1C gene. ALLERGY, ASTHMA, AND CLINICAL IMMUNOLOGY : OFFICIAL JOURNAL OF THE CANADIAN SOCIETY OF ALLERGY AND CLINICAL IMMUNOLOGY 2023; 19:13. [PMID: 36810129 PMCID: PMC9942309 DOI: 10.1186/s13223-023-00768-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 02/05/2023] [Indexed: 02/23/2023]
Abstract
BACKGROUND DCLRE1C gene mutation leads to Artemis deficiency, a severe form of combined immunodeficiency (SCID). Impaired DNA repair and block in early adaptive immunity maturation results in T-B-NK+ immunodeficiency associated with radiosensitivity. Recurrent infections early in life are the main characteristic of Artemis patients. METHOD Among 5373 registered patients, 9 Iranian patients (33.3% female) with confirmed DCLRE1C mutation were identified since 1999-2022. The demographic, clinical, immunological and genetic features were collected through retrospective investigation of medical records and using next generation sequencing. RESULTS Seven patients were born in a consanguineous family (77.8%). The median age of onset was 6.0 (5.0-17.0) months. Severe combined immunodeficiency (SCID) was clinically detected at a median (IQR) age of 7.0 (6.0-20.5) months, following a median diagnostic delay of 2.0 (1.0-3.5) months The most typical first presentation was pneumonia (44.4%) and otitis media (3.33%), followed by BCG lymphadenitis (22.2%) and gastroenteritis (11.1%). The most prevalent manifestations were respiratory tract infections (including otitis media) (66.6%) and chronic diarrhea (66.6%). In addition, juvenile idiopathic arthritis (P5) and celiac disease and idiopathic thrombocytopenic purpura (P9) as autoimmune disorders were reported in 2 patients. All patients had reduced B CD19+ and CD4+ cell counts. IgA deficiency occurred in 77.8% of individuals. CONCLUSION Recurrent infections particulary respiratory tract infection and chronic diarrhea during the first months of life in patients born to consanguineous parents should raise the suspicion for inborn errors of immunity, even in the presence of normal growth and development.
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Affiliation(s)
- Soodeh Ghadimi
- grid.472338.90000 0004 0494 3030School of Medicine, Azad University of Medical Sciences, Tehran, Iran
| | - Mahnaz Jamee
- grid.411600.2Pediatric Nephrology Research Center, Research Institute for Children’s Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran ,grid.411600.2Immunology and Allergy Department, Mofid Children’s Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hassan Abolhassani
- grid.411705.60000 0001 0166 0922Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran ,grid.24381.3c0000 0000 9241 5705Division of Clinical Immunology, Department of Biosciences and Nutrition, Karolinska Institutet, Karolinska University Hospital, Huddinge, Stockholm, Sweden
| | - Nima Parvaneh
- grid.411705.60000 0001 0166 0922Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Rezaei
- grid.411705.60000 0001 0166 0922Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Samaneh Delavari
- grid.411705.60000 0001 0166 0922Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahnaz Sadeghi-Shabestari
- grid.412888.f0000 0001 2174 8913Department of Immunology and Allergy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sedigheh Rafiei Tabatabaei
- grid.411600.2Pediatric Infections Research Center, Research Institute for Children’s Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Fahimzad
- grid.411600.2Pediatric Infections Research Center, Research Institute for Children’s Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shahnaz Armin
- grid.411600.2Pediatric Infections Research Center, Research Institute for Children’s Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Chavoshzadeh
- Immunology and Allergy Department, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Samin Sharafian
- Immunology and Allergy Department, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Watanabe G, Lieber MR. Dynamics of the Artemis and DNA-PKcs Complex in the Repair of Double-Strand Breaks. J Mol Biol 2022; 434:167858. [PMID: 36270581 PMCID: PMC9940633 DOI: 10.1016/j.jmb.2022.167858] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/11/2022] [Accepted: 10/11/2022] [Indexed: 11/05/2022]
Abstract
Pathologic chromosome breaks occur in human dividing cells ∼10 times per day, and physiologic breaks occur in each lymphoid cell many additional times per day. Nonhomologous DNA end joining (NHEJ) is the major pathway for the repair of all of these double-strand breaks (DSBs) during most of the cell cycle. Nearly all broken DNA ends require trimming before they can be suitable for joining by ligation. Artemis is the major nuclease for this purpose. Artemis is tightly regulated by one of the largest protein kinases, which tethers Artemis to its surface. This kinase is called DNA-dependent protein kinase catalytic subunit (or DNA-PKcs) because it is only active when it encounters a broken DNA end. With this activation, DNA-PKcs permits the Artemis catalytic domain to enter a large cavity in the center of DNA-PKcs. Given this remarkably tight supervision of Artemis by DNA-PKcs, it is an appropriate time to ask what we know about the Artemis:DNA-PKcs complex, as we integrate recent structural information with the biochemistry of the complex and how this relates to other NHEJ proteins and to V(D)J recombination in the immune system.
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Affiliation(s)
- Go Watanabe
- Department of Pathology, Department of Biochemistry & Molecular Biology, Department of Molecular Microbiology & Immunology, and Section of Molecular & Computational Biology, USC Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, 1441 Eastlake Ave, Rm. 5428, Los Angeles, CA 90089, USA
| | - Michael R Lieber
- Department of Pathology, Department of Biochemistry & Molecular Biology, Department of Molecular Microbiology & Immunology, and Section of Molecular & Computational Biology, USC Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, 1441 Eastlake Ave, Rm. 5428, Los Angeles, CA 90089, USA.
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11
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Anne-Esguerra Z, Wu M, Watanabe G, Flint AJ, Lieber MR. Partial deletions of the autoregulatory C-terminal domain of Artemis and their effect on its nuclease activity. DNA Repair (Amst) 2022; 120:103422. [PMID: 36332285 PMCID: PMC9691611 DOI: 10.1016/j.dnarep.2022.103422] [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: 09/05/2022] [Revised: 10/17/2022] [Accepted: 10/26/2022] [Indexed: 11/29/2022]
Abstract
Artemis is a 692 aa nuclease that is essential for opening hairpins during vertebrate V(D)J recombination. Artemis is also important in the DNA repair of double-strand breaks via the nonhomologous DNA end joining (NHEJ) pathway. Therefore, absence of Artemis has been shown to result not only in the blockage of lymphocyte development in vertebrates, but also sensitivity of organisms and cells to double-strand break-inducing events that arise in the course of normal metabolism. Nonhomologous DNA end joining (NHEJ) is the major pathway for the repair of double-strand DNA breaks in most vertebrate cells during most of the cell cycle, including in resting cells. Artemis is the primary nuclease for resection of damaged DNA at double-strand breaks. Artemis alone is inactive as an endonuclease, though it has 5'-exonuclease activity. The endonuclease activity requires physical interaction with DNA-PKcs and subsequent activation steps. Truncation of the C-terminal half of Artemis permits Artemis to be active, even without DNA-PKcs. Here we create a systematic set of deletions from the Artemis C-terminus to determine the minimal extent of C-terminal deletion for Artemis to function in a DNA-PKcs-independent manner. We discuss these data in the context of recent structural studies. The results will be useful in future studies to determine the full range of functions of the C-terminal region of Artemis in the regulation of its endonuclease activity.
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Affiliation(s)
- Z Anne-Esguerra
- Departments of Pathology, Biochemistry & Molecular Biology, and Molecular Microbiology & Immunology, and the Section of Molecular & Computational Biology in the Department of Biological Sciences, Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, Los Angeles, CA 90033, USA
| | - Mousheng Wu
- Department of Chemistry, Drug Discovery Division, Southern Research Institute Birmingham, AL, USA
| | - Go Watanabe
- Departments of Pathology, Biochemistry & Molecular Biology, and Molecular Microbiology & Immunology, and the Section of Molecular & Computational Biology in the Department of Biological Sciences, Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, Los Angeles, CA 90033, USA
| | | | - Michael R Lieber
- Departments of Pathology, Biochemistry & Molecular Biology, and Molecular Microbiology & Immunology, and the Section of Molecular & Computational Biology in the Department of Biological Sciences, Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, Los Angeles, CA 90033, USA.
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12
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Watanabe G, Lieber MR, Williams DR. Structural analysis of the basal state of the Artemis:DNA-PKcs complex. Nucleic Acids Res 2022; 50:7697-7720. [PMID: 35801871 PMCID: PMC9303282 DOI: 10.1093/nar/gkac564] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 06/05/2022] [Accepted: 06/17/2022] [Indexed: 01/17/2023] Open
Abstract
Artemis nuclease and DNA-dependent protein kinase catalytic subunit (DNA-PKcs) are key components in nonhomologous DNA end joining (NHEJ), the major repair mechanism for double-strand DNA breaks. Artemis activation by DNA-PKcs resolves hairpin DNA ends formed during V(D)J recombination. Artemis deficiency disrupts development of adaptive immunity and leads to radiosensitive T- B- severe combined immunodeficiency (RS-SCID). An activated state of Artemis in complex with DNA-PK was solved by cryo-EM recently, which showed Artemis bound to the DNA. Here, we report that the pre-activated form (basal state) of the Artemis:DNA-PKcs complex is stable on an agarose-acrylamide gel system, and suitable for cryo-EM structural analysis. Structures show that the Artemis catalytic domain is dynamically positioned externally to DNA-PKcs prior to ABCDE autophosphorylation and show how both the catalytic and regulatory domains of Artemis interact with the N-HEAT and FAT domains of DNA-PKcs. We define a mutually exclusive binding site for Artemis and XRCC4 on DNA-PKcs and show that an XRCC4 peptide disrupts the Artemis:DNA-PKcs complex. All of the findings are useful in explaining how a hypomorphic L3062R missense mutation of DNA-PKcs could lead to insufficient Artemis activation, hence RS-SCID. Our results provide various target site candidates to design disruptors for Artemis:DNA-PKcs complex formation.
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Affiliation(s)
- Go Watanabe
- Department of Pathology, Department of Biochemistry & Molecular Biology, Department of Molecular Microbiology & Immunology, and Section of Computational & Molecular Biology, USC Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, 1441 Eastlake Ave, Rm. 5428, Los Angeles, CA 90089, USA
| | - Michael R Lieber
- Department of Pathology, Department of Biochemistry & Molecular Biology, Department of Molecular Microbiology & Immunology, and Section of Computational & Molecular Biology, USC Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, 1441 Eastlake Ave, Rm. 5428, Los Angeles, CA 90089, USA
| | - Dewight R Williams
- Eyring Materials Center, John Cowley Center for High Resolution Electron Microscopy, Arizona State University, Tempe, AZ 85281, USA
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13
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Wu HY, Zheng Y, Laciak AR, Huang NN, Koszelak-Rosenblum M, Flint AJ, Carr G, Zhu G. Structure and Function of SNM1 Family Nucleases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1414:1-26. [PMID: 35708844 DOI: 10.1007/5584_2022_724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Three human nucleases, SNM1A, SNM1B/Apollo, and SNM1C/Artemis, belong to the SNM1 gene family. These nucleases are involved in various cellular functions, including homologous recombination, nonhomologous end-joining, cell cycle regulation, and telomere maintenance. These three proteins share a similar catalytic domain, which is characterized as a fused metallo-β-lactamase and a CPSF-Artemis-SNM1-PSO2 domain. SNM1A and SNM1B/Apollo are exonucleases, whereas SNM1C/Artemis is an endonuclease. This review contains a summary of recent research on SNM1's cellular and biochemical functions, as well as structural biology studies. In addition, protein structure prediction by the artificial intelligence program AlphaFold provides a different view of the proteins' non-catalytic domain features, which may be used in combination with current results from X-ray crystallography and cryo-EM to understand their mechanism more clearly.
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