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Wu G, Zhang Y, Niu L, Hu Y, Yang Y, Zhao Y. Interleukin-1β promotes human metapneumovirus replication via activating the cGAS-STING pathway. Virus Res 2024; 343:199344. [PMID: 38431054 PMCID: PMC10982080 DOI: 10.1016/j.virusres.2024.199344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/18/2024] [Accepted: 02/25/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Human metapneumovirus(hMPV) is one of the most common viruses that cause acute lower respiratory tract infections. Interleukin-1β (IL-1β) has been reported to play an important role in multiple virus replication. Patients with hMPV infection have increased levels of IL-1β which reminds IL-1β is associated with hMPV infection. However, the mechanism by which IL-1β affects hMPV replication remains unclear. In this study, we explore the effect of IL-1β on hMPV replication and investigate its specific mechanism of action. METHODS We established an hMPV infection model through Human bronchial epithelial cells (16HBE). qRT-PCR and Western Blot were used to detect the expression levels of IL-1β, cyclic GMP-AMP synthase (cGAS), and interferon stimulating factor (STING). Regulating IL-1β expression by small interfering RNA (siRNA) or exogenous supplementary to study the influence of hMPV replication. The selective cGAS inhibitor RU.521, G150, and STING inhibitor H-151 were utilized to detect hMPV replication in 16HBE cells. RESULTS The level of IL-1β protein increased in a time-dependent and dose-dependent manner after hMPV infection. The mRNA and protein levels of cGAS and STING were significantly up-regulated. Knockdown of IL-1β could contribute to the decreased viral loads of hMPV. While the exogenous supplement of recombinant human IL-1β in cells, replication of hMPV was significantly increased. Additionally, the level of cGAS-STING protein expression would be affected by regulating IL-1β expression. Inhibitors of the cGAS-STING pathway led to a lower level of hMPV replication. CONCLUSION This study found that IL-1β could promote hMPV replication through the cGAS-STING pathway, which has the potential to serve as a candidate to fight against hMPV infection, targeting IL-1β may be an effective new strategy to restrain virus replication.
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Affiliation(s)
- Guojin Wu
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Yueyan Zhang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Linlin Niu
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Yuan Hu
- Key Laboratory of Molecular Biology on Infectious Diseases, Ministry of Education, Chongqing Medical University, China
| | - Yuting Yang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.
| | - Yao Zhao
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.
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Luo W, Song Z, Xu G, Wang H, Mu W, Wen J, Zhang P, Qin S, Xiao X, Bai Z. LicochalconeB inhibits cGAS-STING signaling pathway and prevents autoimmunity diseases. Int Immunopharmacol 2024; 128:111550. [PMID: 38232536 DOI: 10.1016/j.intimp.2024.111550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 01/19/2024]
Abstract
Cytosolic DNA activates the STING (stimulator of interferon genes) signaling pathway to trigger interferon and inflammatory responses that protect against microbial infections and cancer. However, Aicardi-Goutières syndrome (AGS) persistently activates the STING signaling pathway, which can lead to severe autoimmune diseases. We demonstrate herein that Licochalcone B (LicoB), the main component of traditional licorice, is an inhibitor of the STING signaling pathway. We observed that LicoB inhibited the activation of the STING signaling pathway in macrophages. Mechanically, LicoB affected the STING-TBK1-IRF3 signal axis and inhibited the activation of the STING downstream signaling pathway. Furthermore, LicoB inhibited the increase in type I interferon levels in mice induced by the STING agonist CMA. LicoB significantly reduced systemic inflammation in Trex1-/- mice. Our results show that LicoB, a STING signaling pathway inhibitor, is a promising candidate for the treatment of diseases related to STING signaling pathway activation.
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Affiliation(s)
- Wei Luo
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China
| | - Zheng Song
- Peking University 302 Clinical Medical School, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Guang Xu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Hongbo Wang
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Wenqing Mu
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Jincai Wen
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Ping Zhang
- Department of Pharmacy, Medical Supplies Center of PLA General Hospital, Beijing 100039, China
| | - Shuanglin Qin
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China.
| | - Xiaohe Xiao
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China.
| | - Zhaofang Bai
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China.
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Huang R, Ning Q, Zhao J, Zhao X, Zeng L, Yi Y, Tang S. Targeting ENPP1 for cancer immunotherapy: Killing two birds with one stone. Biochem Pharmacol 2024; 220:116006. [PMID: 38142838 DOI: 10.1016/j.bcp.2023.116006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/17/2023] [Accepted: 12/19/2023] [Indexed: 12/26/2023]
Abstract
Cancer immunotherapy, particularly with immune checkpoint inhibitors, has revolutionized the paradigm of cancer treatment. Nevertheless, the efficacy of cancer immunotherapy remains limited in most clinical settings due to the lack of a preexisting antitumor T-cell response in tumors. Therefore, the clinical outcomes of cancer immunotherapy must be improved crucially. With increased awareness of the importance of the innate immune response in the recruitment of T cells, as well as the onset and maintenance of the T cell response, great interest has been shown in activating the cGAS-STING signaling pathway to awaken the innate immune response, thereby orchestrating both innate and adaptive immune responses to induce tumor clearance. However, tumor cells have evolved to overexpress ectonucleotide pyrophosphate phosphodiesterase 1 (ENPP1), which degrades the immunotransmitter 2',3'-cGAMP and promotes the production of immune-suppressing adenosine, resulting in inhibition of the anticancer immune response in the tumor microenvironment. Clinically, ENPP1 overexpression is closely associated with poor prognosis in patients with cancer. Conversely, depleting or inhibiting ENPP1 has been verified to elevate extracellular 2',3'-cGAMP levels and inhibit the generation of adenosine, thereby reinvigorating the anticancer immune response for tumor elimination. A variety of ENPP1 inhibitors have recently been developed and have demonstrated significant promise for cancer immunotherapy. In this review, we provide an overview of ENPP1, dissect its immunosuppressive mechanisms, and discuss the development of ENPP1 inhibitors with the potential to further improve the efficacy of cancer immunotherapy.
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Affiliation(s)
- Ruilei Huang
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua 418000, China
| | - Qian Ning
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua 418000, China; College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Jihui Zhao
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua 418000, China
| | - Xuhong Zhao
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua 418000, China
| | - Luting Zeng
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua 418000, China
| | - Yi Yi
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua 418000, China
| | - Shengsong Tang
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua 418000, China; College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, and Institute of Pharmacy & Pharmacology, University of South China, Hengyang 421001, China.
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Ding F, Liu J, Ai K, Xu C, Mao X, Liu Z, Xiao H. Simultaneous Activation of Pyroptosis and cGAS-STING Pathway with Epigenetic/ Photodynamic Nanotheranostic for Enhanced Tumor Photoimmunotherapy. Adv Mater 2024; 36:e2306419. [PMID: 37796042 DOI: 10.1002/adma.202306419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 09/21/2023] [Indexed: 10/06/2023]
Abstract
Promoting innate immunity through pyroptosis induction or the cyclic GMP-AMP synthase-stimulator of interferon gene (cGAS-STING) pathway activation has emerged as a potent approach to counteract the immunosuppressive tumor microenvironment and elicit systemic antitumor immunity. However, current pyroptosis inducers and STING agonists often suffer from limitations including instability, unpredictable side effects, or inadequate intracellular expression of gasdermin and STING. Here, a tumor-specific nanotheranostic platform that combines photodynamic therapy (PDT) with epigenetic therapy to simultaneously activate pyroptosis and the cGAS-STING pathway in a light-controlled manner is constructed. This approach involves the development of oxidation-sensitive nanoparticles (NP1) loaded with the photosensitizer TBE, along with decitabine nanomicelles (NP2). NP2 enables the restoration of STING and gasdermin E (GSDME) expression, while NP1-mediated PDT facilitates the release of DNA fragments from damaged mitochondria to potentiate the cGAS-STING pathway, and promotes the activation of caspase-3 to cleave the upregulated GSDME into pore-forming GSDME-N terminal. Subsequently, the released inflammatory cytokines facilitate the maturation of antigen-presentation cells, triggering T cell-mediated antitumor immunity. Overall, this study presents an elaborate strategy for simultaneous photoactivation of pyroptosis and the cGAS-STING pathway, enabling targeted photoimmunotherapy in immunotolerant tumors. This innovative approach holds significant promise in overcoming the limitations associated with existing therapeutic modalities and represents a valuable avenue for future clinical applications.
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Affiliation(s)
- Feixiang Ding
- Department of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
- Institute of Clinical Pharmacology, Engineering Research Center for Applied Technology of Pharmacogenomics of Ministry of Education, Central South University, Changsha, 410078, China
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
| | - Junyan Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Kelong Ai
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
| | - Chun Xu
- School of Dentistry, University of Queensland, Brisbane, 4006, Australia
| | - Xiaoyuan Mao
- Department of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
- Institute of Clinical Pharmacology, Engineering Research Center for Applied Technology of Pharmacogenomics of Ministry of Education, Central South University, Changsha, 410078, China
| | - Zhaoqian Liu
- Department of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
- Institute of Clinical Pharmacology, Engineering Research Center for Applied Technology of Pharmacogenomics of Ministry of Education, Central South University, Changsha, 410078, China
| | - Haihua Xiao
- Beijing National Laboratory for Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
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Tao G, Liao W, Hou J, Jiang X, Deng X, Chen G, Ding C. Advances in crosstalk among innate immune pathways activated by mitochondrial DNA. Heliyon 2024; 10:e24029. [PMID: 38268572 PMCID: PMC10806296 DOI: 10.1016/j.heliyon.2024.e24029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 12/17/2023] [Accepted: 01/02/2024] [Indexed: 01/26/2024] Open
Abstract
Mitochondria are not only the power plant for intracellular oxidative phosphorylation and ATP synthesis, but also involved in cell proliferation, differentiation, signaling and apoptosis. Recent studies have shown that mitochondria play an important role in other pathophysiological functions in addition to cellular energy metabolism. Mitochondria release mitochondrial DNA (mtDNA) as a damage-associated molecular pattern (DAMP) to activate Toll-like receptor 9 (TLR9), NOD-, LRR-, and pyrin domain-containing 3 (NLRP3) inflammasome and cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) innate immune signaling pathways against foreign pathogenic microorganisms. The innate immune response not only promotes antimicrobial immune defense and regulates antiviral signaling, but their overactivation also induces the onset and progression of inflammatory diseases. In this paper, we review the role of mtDNA in the activation of innate immune signaling pathways and the crosstalk among innate immune signaling pathways activated by mtDNA, providing clues for the study of inflammatory diseases caused by mtDNA cytoplasmic translocation.
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Affiliation(s)
- Guangwei Tao
- The First Affiliated Hospital, Department of Hepatopancreatobiliary Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
- The First Affiliated Hospital of Anhui Medical University, Clinical Immunology Institute, Anhui Medical University, Hefei, Anhui, 230032, China
| | - Wenyan Liao
- The First Affiliated Hospital, Department of Gynaecology and Obstetrics, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Jiafeng Hou
- The First Affiliated Hospital, Department of Hepatopancreatobiliary Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Xinmiao Jiang
- The First Affiliated Hospital, Department of Hepatopancreatobiliary Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Xin Deng
- The First Affiliated Hospital, Department of Hepatopancreatobiliary Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Guodong Chen
- The First Affiliated Hospital, Department of Hepatopancreatobiliary Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Chengming Ding
- The First Affiliated Hospital, Department of Hepatopancreatobiliary Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
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Hu W, Zhang Z, Xue Y, Ning R, Guo X, Sun Y, Zhang Q. Carbon ion irradiation exerts antitumor activity by inducing cGAS-STING activation and immune response in prostate cancer-bearing mice. Cancer Med 2024; 13:e6950. [PMID: 38379323 PMCID: PMC10832322 DOI: 10.1002/cam4.6950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 01/01/2024] [Accepted: 01/10/2024] [Indexed: 02/22/2024] Open
Abstract
BACKGROUND AND PURPOSE As an advanced radiotherapy technique, carbon ion radiotherapy has demonstrated good efficacy and low toxicity for prostate cancer patients, but the radiobiological mechanism of killing tumor cells has not been fully elucidated. This study aims to explore the antitumor effects of carbon ion irradiation (CIR) through investigating the immune response induced by CIR in prostate cancer-bearing mice and the underlying molecular mechanism. MATERIALS AND METHODS We established subcutaneous transplantation tumor models of prostate cancer to evaluate the tumor inhibition effect of CIR. Investigation of immunophenotype alterations were assessed by flow cytometry. Immunofluorescence, western blot, and real-time quantitative PCR was employed to analyze the activation of cGAS-STING pathway. RESULTS CIR showed more powerful tumor growth control than photon irradiation in immunocompetent syngeneic C57BL/6 mice. CIR exerts antitumor effect by triggering immune response, characterized by increased CD4+ T cells and macrophages in tumor, enhanced CD8+ T cells and T effector memory cells in spleen, improved IFN-γ production of CD8+ tumor-infiltrating lymphocytes, and reduced exhausted T cells in tumor and spleen. Additionally, production of cytoplasmic double-stranded DNA, protein levels of p-TBK1 and p-IRF3 in the cGAS-STING pathway, and gene expression levels of downstream interferon-stimulated genes were significantly increased after CIR in a dose-dependent manner. Treatment of RM1 tumor-bearing mice with the STING inhibitor C-176 impaired the antitumor effect of CIR. CONCLUSION The excellent antitumor activity of CIR in immunocompetent prostate cancer-bearing C57BL/6 mice may be attributed to stronger induction of antitumor immune response and higher activation of cGAS-STING pathway.
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Affiliation(s)
- Wei Hu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
| | - Zhenshan Zhang
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
| | - Yushan Xue
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
| | - Renli Ning
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
- Department of Research and Development, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
| | - Xiaomao Guo
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
- Department of Research and Development, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
| | - Yun Sun
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
- Department of Research and Development, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
| | - Qing Zhang
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion CenterFudan University Cancer HospitalShanghaiChina
- Shanghai Key Laboratory of Radiation Oncology (20dz2261000)ShanghaiChina
- Shanghai Engineering Research Center of Proton and Heavy Ion Radiation TherapyShanghaiChina
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Li Y, Lou H, Zhao Y, Fan W, Jiao P, Sun L, Luo T, Liu W. [The I226R protein of African swine fever virus inhibits the cGAS-STING-mediated innate immune response]. Sheng Wu Gong Cheng Xue Bao 2023; 39:4796-4808. [PMID: 38147982 DOI: 10.13345/j.cjb.230106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
This study aimed to explore the mechanism of how African swine fever virus (ASFV) I226R protein inhibits the cGAS-STING signaling pathway. We observed that I226R protein (pI226R) significantly inhibited the cGAS-STING-mediated type Ⅰ interferons and the interferon-stimulated genes production by dual-luciferase reporter assay system and real-time quantitative PCR. The results of co-immunoprecipitation assay and confocal microscopy showed that pI226R interacted with cGAS. Furthermore, pI226R promoted cGAS degradation through autophagy-lysosome pathway. Moreover, we found that pI226R decreased the binding of cGAS to E3 ligase tripartite motif protein 56 (TRIM56), resulting in the weakened monoubiquitination of cGAS, thus inhibiting the activation of cGAS and cGAS-STING signaling. In conclusion, ASFV pI226R suppresses the antiviral innate immune response by antagonizing cGAS, which contributes to an in-depth understanding of the immune escape mechanism of ASFV and provides a theoretical basis for the development of vaccines.
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Affiliation(s)
- Yabo Li
- Animal Science and Technology College, Guangxi University, Nanning 530000, Guangxi, China
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Huicong Lou
- Animal Science and Technology College, Guangxi University, Nanning 530000, Guangxi, China
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yuna Zhao
- Animal Science and Technology College, Guangxi University, Nanning 530000, Guangxi, China
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Wenhui Fan
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Pengtao Jiao
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Lei Sun
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tingrong Luo
- Animal Science and Technology College, Guangxi University, Nanning 530000, Guangxi, China
| | - Wenjun Liu
- Animal Science and Technology College, Guangxi University, Nanning 530000, Guangxi, China
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Luo S, Luo R, Lu H, Zhang R, Deng G, Luo H, Yu X, Wang C, Zhang H, Zhang Y, Huang W, Sun J, Liu Y, Huang F, Lei Z. Activation of cGAS-STING signaling pathway promotes liver fibrosis and hepatic sinusoidal microthrombosis. Int Immunopharmacol 2023; 125:111132. [PMID: 37951190 DOI: 10.1016/j.intimp.2023.111132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/15/2023] [Accepted: 10/23/2023] [Indexed: 11/13/2023]
Abstract
Inflammation plays an essential role in the development liver fibrosis.The Cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS) is a central cytoplasmic DNA sensor which can recognize cytoplasmic DNA, known to trigger stimulator of interferon genes (STING) and downstream proinflammatory factors. Here, we investigated the role of cGAS-STING signaling pathway in the pathogenesis of liver fibrosis.Differentially expressed genes (DEGs) in human liver tissue were identified using RNA-Seq analysis. As models of liver fibrosis, chronic Carbon tetrachloride (CCl4) exposure were applied in cGAS-knockout mice. LX-2 cells were co-cultured with human liver sinusoidal endothelial cells (LSECs) to explore the underlying mechanisms of hepatic sinusoidal microthrombosis in an inflammatory microenvironment. The endoscopic ultrasound-guided portal vein pressure gradient (EUS-PPG) method was used to analyze the associations between hepatic sinusoidal microthrombosis and PPG in patients with liver fibrosis and portal hypertension (PTH). The RNA-seq analysis results showed that DEGs were enriched in inflammation and endothelial cell activation. The upregulation of the cGAS-STING signaling exacerbated liver fibrosis and intrahepatic inflammation. It also exacerbated LSECs impairment and increased the contribution of hepatic sinusoidal microthrombosis to liver fibrosis in vivo and in vitro. Prothrombotic mediators and proinflammatory factors were associated with PPG in patients with liver fibrosis and portal hypertension. Therefore, activating cGAS-STING signaling pathway promotes liver fibrosis and hepatic sinusoidal microthrombosis, which may lead to increased portal vein pressure.
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Affiliation(s)
- Shaobin Luo
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Rongkun Luo
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Huanyuan Lu
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Rui Zhang
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Gang Deng
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Hongwu Luo
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Xiao Yu
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Changfa Wang
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Hui Zhang
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Yuping Zhang
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Wei Huang
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Jichun Sun
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Yinghong Liu
- The Third Xiangya Hospital of Central South University, Surgery Center, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Feizhou Huang
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China
| | - Zhao Lei
- The Third Xiangya Hospital of Central South University, Department of Hepatopancreatobiliary Surgery, 138 Tongzipo Road, Changsha City, Hunan Province, China.
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Zhang S, Zeng Y, Wang K, Song G, Yu Y, Meng T, Yuan H, Hu F. Chitosan-based nano-micelles for potential anti-tumor immunotherapy: Synergistic effect of cGAS-STING signaling pathway activation and tumor antigen absorption. Carbohydr Polym 2023; 321:121346. [PMID: 37739513 DOI: 10.1016/j.carbpol.2023.121346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 08/09/2023] [Accepted: 08/28/2023] [Indexed: 09/24/2023]
Abstract
Cyclic GMP-AMP synthase (cGAS)-stimulator of interferon gene (STING) signaling pathway is an essential DNA-sensing pathway to regulate the innate and adaptive immune response, which plays an important role in tumor immunotherapy. Although the STING agonists can be used, they are limited by their inability to target immune cells and systemic immunotoxicity, calling for novel strategies to accurately and effectively activate the cGAS-STING signaling pathway. Herein, mannose-modified stearic acid-grafted chitosan (M-CS-SA) micelles with the ability to activate the cGAS-STING signaling pathway and absorb tumor antigens were constructed. The chitosan-based nano-micelles showed valid dendritic cell (DCs) targeting and could escape from lysosomes leading to the activation of the cGAS-STING signaling pathway and the maturation of DCs. In addition, a combinatorial therapy was presented based on the programmed administration of oxaliplatin and M-CS-SA. M-CS-SA adsorbed tumor antigens released by chemotherapy to construct an autologous tumor vaccine and built a comprehensive antitumor immune response. In vivo, the combinatorial therapy achieved a tumor inhibition rate of 76.31 % at the oxaliplatin dose of 5 mg/kg and M-CS-SA dose of 15 mg/kg, and increased the CD3+ CD8+ T cell infiltration. This work demonstrated that M-CS-SA and its co-treatment with oxaliplatin showed great potential in tumor immunotherapy.
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Affiliation(s)
- Shufen Zhang
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Yingping Zeng
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Kai Wang
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Guangtao Song
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Yiru Yu
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Tingting Meng
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China
| | - Hong Yuan
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China; Jinhua Institute of Zhejiang University, Jinhua 321299, China
| | - Fuqiang Hu
- College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, China; Jinhua Institute of Zhejiang University, Jinhua 321299, China.
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Hu Z, Li X, Yang Y, Zhang Z, Ding S. High-Intensity Interval Training Ameliorates High-Fat Diet-Induced Metabolic Disorders via the Cyclic GMP-AMP Synthase-Stimulator of Interferon Gene Signaling Pathway. Int J Mol Sci 2023; 24:13840. [PMID: 37762143 PMCID: PMC10531371 DOI: 10.3390/ijms241813840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Metabolic diseases are growing in prevalence worldwide. Although the pathogenesis of metabolic diseases remains ambiguous, the correlation between cyclic GMP-AMP synthase (cGAS)-stimulator of interferon gene (STING) and metabolic diseases has been identified recently. Exercise is an effective intervention protecting against metabolic diseases, however, the role of the cGAS-STING signaling pathway in this process is unclear, and the effect and mechanism of different exercise intensities on metabolic disorders are still unknown. Thus, we explored the association between exercise to ameliorate HFD-induced metabolic disorders and the cGAS-STING signaling pathway and compared the effects of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT). Male C57BL/6 mice (6-8 weeks old) were fed HFD for 8 weeks to establish a metabolic disease model and were subjected to 8-week MICT or HIIT training. Glucose tolerance tests (GTT) and insulin tolerance tests (ITT) were used to assess glucose metabolism. Serum triglyceride (TG) and total cholesterol (TC) were measured to evaluate lipid metabolism. Oil red staining was used to observe the lipid droplets in the gastrocnemius muscle. An enzyme-linked immunosorbent assay was used to detect the serum inflammatory factors IL-6 and IFN-β. The protein expression of the cGAS-STING signaling pathway was detected by the WesTM automatic protein expression analysis system. We reported that HFD induced metabolic disorders with obesity, abnormal glucolipid metabolism, and significant inflammatory responses. Both HIIT and MICT ameliorated the above adverse reactions, but MICT was superior to HIIT in improving glucolipid disorders. Additionally, HIIT significantly increased the expression of STING protein, as well as the phosphorylation of TBKI and the ratio of p-IRF3/IRF3. MICT only increased the expression of STING protein. Our findings suggest that HIIT may alleviate HFD-induced metabolic disorder phenotype through the cGAS-STING signaling pathway. However, the improvement of MICT on metabolic disorder phenotype is less associated with the cGAS-STING pathway, which needs to be further explored.
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Affiliation(s)
- Zhiwen Hu
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China; (Z.H.); (X.L.); (Y.Y.)
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Xi Li
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China; (Z.H.); (X.L.); (Y.Y.)
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Yangjun Yang
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China; (Z.H.); (X.L.); (Y.Y.)
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Zhe Zhang
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China; (Z.H.); (X.L.); (Y.Y.)
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Shuzhe Ding
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China; (Z.H.); (X.L.); (Y.Y.)
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
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11
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Zhang R, Yang W, Zhu H, Zhai J, Xue M, Zheng C. NLRC4 promotes the cGAS-STING signaling pathway by facilitating CBL-mediated K63-linked polyubiquitination of TBK1. J Med Virol 2023; 95:e29013. [PMID: 37537877 DOI: 10.1002/jmv.29013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/28/2023] [Accepted: 07/20/2023] [Indexed: 08/05/2023]
Abstract
TANK-binding kinase 1 (TBK1) is crucial in producing type Ⅰ interferons (IFN-Ⅰ) that play critical functions in antiviral innate immunity. The tight regulation of TBK1, especially its activation, is very important. Here we identify NLRC4 as a positive regulator of TBK1. Ectopic expression of NLRC4 facilitates the activation of the IFN-β promoter, the mRNA levels of IFN-β, ISG54, and ISG56, and the nuclear translocation of interferon regulatory factor 3 induced by cGAS and STING. Consistently, under herpes simplex virus-1 (HSV-1) infection, knockdown or knockout of NLRC4 in BJ cells and primary peritoneal macrophages from Nlrc4-deficient (Nlrc4-/- ) mice show attenuated Ifn-β, Isg54, and Isg56 mRNA transcription, TBK1 phosphorylation, and augmented viral replications. Moreover, Nlrc4-/- mice show higher mortality upon HSV-1 infection. Mechanistically, NLRC4 facilitates the interaction between TBK1 and the E3 ubiquitin ligase CBL to enhance the K63-linked polyubiquitination of TBK1. Our study elucidates a previously uncharacterized function for NLRC4 in upregulating the cGAS-STING signaling pathway and antiviral innate immunity.
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Affiliation(s)
- Rongzhao Zhang
- Department of Immunology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Wenxian Yang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Huifang Zhu
- Neonatal/Pediatric Intensive Care Unit, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Jingbo Zhai
- Key Laboratory of Zoonose Prevention and Control at Universities of Inner Mongolia Autonomous Region, Medical College, Inner Mongolia Minzu University, Tongliao, China
| | - Mengzhou Xue
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Chunfu Zheng
- Department of Immunology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
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12
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Bi R, Yang Y, Liao H, Ji G, Ma Y, Cai L, Li J, Yang J, Sun M, Liang J, Shi L. Porphyromonas gingivalis induces an inflammatory response via the cGAS-STING signaling pathway in a periodontitis mouse model. Front Microbiol 2023; 14:1183415. [PMID: 37405166 PMCID: PMC10315844 DOI: 10.3389/fmicb.2023.1183415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/30/2023] [Indexed: 07/06/2023] Open
Abstract
Periodontitis is an inflammatory disease initiated by periodontopathogenic bacteria in the dental plaque biofilms. Understanding the role of Porphyromonas gingivalis (P. gingivalis), a keystone pathogen associated with chronic periodontitis, in the inflammatory response is crucial. Herein, we investigated whether P. gingivalis infection triggers the expression of the type I IFN gene and various cytokines and leads to activation of the cGAMP synthase-stimulator of IFN genes (cGAS-STING) pathway both in vitro and in a mouse model. Additionally, in an experimental model of periodontitis using P. gingivalis, StingGt mice showed lower levels of inflammatory cytokines and bone resorption than wild-type mice. Furthermore, we report that a STING inhibitor (SN-011) significantly decreased inflammatory cytokine production and osteoclast formation in a periodontitis mouse model with P. gingivalis. In addition, STING agonist (SR-717) -treated periodontitis mice displayed enhanced macrophage infiltration and M1 macrophage polarization in periodontal lesions compared with that in vehicle-treated periodontitis mice. In conclusion, our results demonstrate that the cGAS-STING signaling pathway may be one of the key mechanisms crucial for the P. gingivalis-induced inflammatory response that leads to chronic periodontitis.
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Affiliation(s)
- Rong Bi
- Laboratory of Immunogenetics, Institute of Medical Biology, Chinese Academy of Medical Science, Peking Union Medical College, Kunming, Yunnan, China
| | - Yanling Yang
- The Affiliated Stomatology Hospital of Kunming Medical University, Center of Stomatology, Affiliated Hospital of Yunnan University, Kunming, Yunnan, China
| | - Hongwei Liao
- Laboratory of Vaccine Development, Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Guang Ji
- Laboratory of Vaccine Development, Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Yan Ma
- Laboratory of Vaccine Development, Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Lukui Cai
- Laboratory of Vaccine Development, Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Jingyan Li
- Laboratory of Vaccine Development, Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Jingsi Yang
- Laboratory of Vaccine Development, Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Mingbo Sun
- The Affiliated Stomatology Hospital of Kunming Medical University, Center of Stomatology, Affiliated Hospital of Yunnan University, Kunming, Yunnan, China
| | - Jiangli Liang
- Laboratory of Vaccine Development, Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China
| | - Li Shi
- Laboratory of Immunogenetics, Institute of Medical Biology, Chinese Academy of Medical Science, Peking Union Medical College, Kunming, Yunnan, China
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13
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Peng M, Li X, Zhang X, Peng L. Inhibition of cGAS aggravated the host inflammatory response to Aspergillus fumigatus. Exp Lung Res 2023; 49:86-100. [PMID: 37190937 DOI: 10.1080/01902148.2023.2211663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 05/02/2023] [Indexed: 05/17/2023]
Abstract
Backgroud: Aspergillus fumigatus (A. fumigatus) is a clinically important fungal pathogen. Invasive pulmonary aspergillosis (IPA) is the main fungal infection with increased morbidity and mortality in immunocompromised populations, although treatments are available. An innate DNA sensor known as cyclic GMP-AMP Synthase (cGAS) has recently been discovered that senses invading pathogens and has a significant impact on innate immunity. It can activate the cGAS-STING signaling pathway to stimulate downstream signals. But it is still unclear what role it plays in IPA's pathogenesis.Methods: An investigation into the infection of A. fumigatus was conducted by inhibiting cGAS activity in vivo and in vitro using siRNA and RU.521(an inhibitor of cGAS).Results: We discovered that suppressing cGAS increased the host's susceptibility to A. fumigatus and harmed those with infections by enhancing pulmonary tissue damage and edema, as well as decreasing fungal clearance. Furthermore, our findings show that inhibiting or silencing cGAS can exacerbate the inflammatory response in IPA mouse models and human bronchi epithelial cells (HBECs) treated with A. fumigatus by upregulating the production of inflammatory genes with non-type 1 interferon.Conclusion: Based on our analysis, we conclude that activating cGAS might increase host resistance to A. fumigatus, protect against pulmonary illnesses brought on by A. fumigatus and that exploring the cGAS-STING signaling pathway is beneficial not only for the immunological investigation of IPA but also may be a potential therapeutic objective.
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Affiliation(s)
- Mei Peng
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiujun Li
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Xiaobing Zhang
- Department of Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Li Peng
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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14
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Huang S, Xie P, Huang X, Chen Z, Yang J, Wang J, Liu C, Li H, Zhou B. Disulfiram combined with chemoimmunotherapy potentiates pancreatic cancer treatment efficacy through the activation of cGAS-STING signaling pathway via suppressing PARP1 expression. Am J Cancer Res 2023; 13:2055-2065. [PMID: 37293156 PMCID: PMC10244122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 04/03/2023] [Indexed: 06/10/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the fourth leading cause of cancer-related mortality globally with limited effective treatment options. Although the combination of immunotherapy and chemotherapy has been attempted in clinical trials to treat PDAC, the results are not promising. Therefore, in this study, we explored the application of a novel combination strategy with disulfiram (DSF) to enhance the treatment efficacy of PDAC as well as its underlying molecular mechanism. We compared the antitumor effects between single agents and the combination therapy by using mouse allograft tumor model and found DSF combined with chemoimmunotherapy significantly suppressed the growth of subcutaneous PDAC allograft tumor in mice and prolonged the survival of mice. To further investigate the alterations in the immune microenvironment of tumors from different treatment groups, we employed flow cytometry and RNA-seq analysis to examine the composition of tumor-infiltrating immune cells as well as the expression level of a variety of cytokines. Our results revealed that the proportion of CD8 T cells was notably elevated and that multiple cytokines were upregulated in the combination therapy group. Furthermore, qRT-PCR results indicated that DSF could upregulate the mRNA levels of IFNα and IFNβ, which could be reversed by STING pathway inhibitor. Mechanistically, we found that DSF activated STING signaling pathway through Poly (ADP-ribose) polymerases (PARP1) inhibition. Taken together, our findings highlight the potential clinical application of this novel combination strategy using DSF and chemoimmunotherapy in the treatment of patients with PDAC.
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Affiliation(s)
- Shenan Huang
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang UniversityNanchang 330006, Jiangxi, P. R. China
| | - Peiyi Xie
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai 200032, P. R. China
| | - Xiaomei Huang
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang UniversityNanchang 330006, Jiangxi, P. R. China
| | - Zhimeng Chen
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang UniversityNanchang 330006, Jiangxi, P. R. China
| | - Jinhuan Yang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325035, Zhejiang, P. R. China
| | - Jian Wang
- Department of Hepato-Biliary-Pancreatic Surgery, Pingxiang People’s HospitalPingxiang 337099, Jiangxi, P. R. China
| | - Cong Liu
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang UniversityNanchang 330006, Jiangxi, P. R. China
| | - Hui Li
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of EducationShanghai 200032, P. R. China
- Shanghai Medical College and Zhongshan Hospital Immunotherapy Translational Research CenterShanghai 200031, P. R. China
| | - Binghai Zhou
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang UniversityNanchang 330006, Jiangxi, P. R. China
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15
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He Q, Zheng R, Ma J, Zhao L, Shi Y, Qiu J. Responsive manganese-based nanoplatform amplifying cGAS-STING activation for immunotherapy. Biomater Res 2023; 27:29. [PMID: 37061706 PMCID: PMC10105937 DOI: 10.1186/s40824-023-00374-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/03/2023] [Indexed: 04/17/2023] Open
Abstract
BACKGROUND The activation of the cyclic guanosine monophosphate-adenosine monophosphate synthase-stimulator of interferon genes (cGAS-STING) signaling pathway has attracted great attention for its ability to up-regulate innate immune response and thus enhance cancer immunotherapy. However, many STING agonists limit the further advancement of immunotherapy due to weak tumor responsiveness or low activation efficiency. The responsive and effective activation of cGAS-STING signaling in tumors is a highly challenging process. METHODS In this study, a manganese-based nanoplatform (MPCZ NPs) was constructed that could responsively and efficiently generate more manganese ions (Mn2+) and reactive oxygen species (ROS) to activate cGAS-STING signaling pathway. Briefly, manganese dioxide (MnO2) was loaded with zinc protoporphyrin IX (ZPP) molecule and coated by polydopamine (PDA) embedded with NH4HCO3 to obtain MPCZ NPs. Additionally, MPCZ NPs were evaluated in vitro and in vivo for their antitumor effects by methyl thiazolyl tetrazolium (MTT) assay and TUNEL assays, respectively. RESULTS In this system, tumor responsiveness was achieved by exogenous (laser irradiation) and endogenous (high levels GSH) stimulation, which triggered the collapse or degradation of PDA and MnO2. Moreover, the release of Mn2+ augmented the cGAS-STING signaling pathway and enhanced the conversion of hydrogen peroxide (H2O2) to hydroxyl radical (·OH) under NIR laser irradiation. Furthermore, the release of ZPP and the elimination of GSH by MPCZ NPs inhibited HO-1 activity and prevented ROS consumption, respectively. CONCLUSIONS This adopted open source and reduce expenditure strategy to effectively generate more ROS and Mn2+ to responsively activate cGAS-STING signaling pathway, providing a new strategy for improving immunotherapy.
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Affiliation(s)
- Qingbin He
- School of Radiology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, 271000, China
- Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, China
| | - Runxiao Zheng
- Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, China
| | - Junchi Ma
- School of Radiology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, 271000, China
| | - Luyang Zhao
- Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, China
| | - Yafang Shi
- Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, China
| | - Jianfeng Qiu
- School of Radiology, the Second Affiliated Hospital of Shandong First Medical University, Tai'an, 271016, China.
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16
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Cheng M, Kanyema MM, Sun Y, Zhao W, Lu Y, Wang J, Li X, Shi C, Wang J, Wang N, Yang W, Jiang Y, Huang H, Yang G, Zeng Y, Wang C, Cao X. African Swine Fever Virus L83L Negatively Regulates the cGAS-STING-Mediated IFN-I Pathway by Recruiting Tollip To Promote STING Autophagic Degradation. J Virol 2023; 97:e0192322. [PMID: 36779759 PMCID: PMC9973008 DOI: 10.1128/jvi.01923-22] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/05/2023] [Indexed: 02/14/2023] Open
Abstract
African swine fever (ASF) is a devastating infectious disease of pigs caused by the African swine fever virus (ASFV), which poses a great danger to the global pig industry. Many viral proteins can suppress with interferon signaling to evade the host's innate immune responses. Therefore, the development of an effective vaccine against ASFV has been dampened. Recent studies have suggested that the L83L gene may be integrated into the host genome, weakening the host immune system, but the underlying mechanism is unknown. Our study found that L83L negatively regulates the cGAS-STING-mediated type I interferon (IFN-I) signaling pathway. Overexpression of L83L inhibited IFN-β promoter and ISRE activity, and knockdown of L83L induced higher transcriptional levels of interferon-stimulated genes (ISGs) and phosphorylation levels of IRF3 in primary porcine alveolar macrophages. Mechanistically, L83L interacted with cGAS and STING to promote autophagy-lysosomal degradation of STING by recruiting Tollip, thereby blocking the phosphorylation of the downstream signaling molecules TBK1, IRF3, and IκBα and reducing IFN-I production. Altogether, our study reveals a negative regulatory mechanism involving the L83L-cGAS-STING-IFN-I axis and provides insights into an evasion strategy involving autophagy and innate signaling pathways employed by ASFV. IMPORTANCE African swine fever virus (ASFV) is a large double-stranded DNA virus that primarily infects porcine macrophages. The ASFV genome encodes a large number of immunosuppressive proteins. Current options for the prevention and control of this pathogen remain pretty limited. Our study showed that overexpression of L83L inhibited the cGAS-STING-mediated type I interferon (IFN-I) signaling pathway. In contrast, the knockdown of L83L during ASFV infection enhanced IFN-I production in porcine alveolar macrophages. Additional analysis revealed that L83L protein downregulated IFN-I signaling by recruiting Tollip to promote STING autophagic degradation. Although L83L deletion has been reported to have little effect on viral replication, its immune evade mechanism has not been elucidated. The present study extends our understanding of the functions of ASFV-encoded pL83L and its immune evasion strategy, which may provide a new basis for developing a live attenuated vaccine for ASF.
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Affiliation(s)
- Mingyang Cheng
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Makoye Mhozya Kanyema
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Yu Sun
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Wenhui Zhao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Yiyuan Lu
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Junhong Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Xiaoxu Li
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Chunwei Shi
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Jianzhong Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Nan Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Wentao Yang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Yanlong Jiang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Haibin Huang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Guilian Yang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Yan Zeng
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Chunfeng Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Xin Cao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, People’s Republic of China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, People’s Republic of China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, People’s Republic of China
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17
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Hu Y, Chen B, Yang F, Su Y, Yang D, Yao Y, Wang S, Wu Y, Tao L, Xu T. Emerging role of the cGAS-STING signaling pathway in autoimmune diseases: Biologic function, mechanisms and clinical prospection. Autoimmun Rev 2022;:103155. [PMID: 35902046 DOI: 10.1016/j.autrev.2022.103155] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 07/21/2022] [Indexed: 12/15/2022]
Abstract
The cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) signaling pathway, as vital component of innate immune system, acts a vital role in distinguishing invasive pathogens and cytosolic DNA. Cytosolic DNA sensor cGAS first binds to cytosolic DNA and catalyze synthesis of cyclic guanosine monophosphate-adenosine monophosphate (cGAMP), which is known as the secondmessenger. Next, cGAMP activates the adaptor protein STING, triggering a molecular chain reaction to stimulate cytokines including interferons (IFNs). Recently, many researches have revealed that the regulatory role of cGAS-STING signaling pathway in autoimmune diseases (AIDs) such as Rheumatoid arthritis (RA), Aicardi Goutières syndrome (AGS) and systemic lupus erythematosus (SLE). Moreover, accumulated evidence showed inhibition of the cGAS-STING signaling pathway can remarkably suppress joint swelling and inflammatory cell infiltration in RA mice. Therefore, in this review, we describe the molecular properties, biologic function and mechanisms of the cGAS-STING signaling pathway in AIDs. In addition, potential clinical applications especially selective small molecule inhibitors targeting the cGAS-STING signaling pathway are also discussed.
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18
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Wei X, Zhang L, Yang Y, Hou Y, Xu Y, Wang Z, Su H, Han F, Han J, Liu P, Hu S, Koci MD, Sun X, Zhang C. LL-37 transports immunoreactive cGAMP to activate STING signaling and enhance interferon-mediated host antiviral immunity. Cell Rep 2022; 39:110880. [PMID: 35649354 DOI: 10.1016/j.celrep.2022.110880] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/28/2022] [Accepted: 05/04/2022] [Indexed: 11/03/2022] Open
Abstract
Cyclic 2',3'-GMP-AMP (cGAMP) binds to and activates stimulator of interferon genes (STING), which then induces interferons to drive immune responses against tumors and pathogens. Exogenous cGAMP produced by infected and malignant cells and synthetic cGAMP used in immunotherapy must traverse the cell membrane to activate STING in target cells. However, as an anionic hydrophilic molecule, cGAMP is not inherently membrane permeable. Here, we show that LL-37, a human host defense peptide, can function as a transporter of cGAMP. LL-37 specifically binds cGAMP and efficiently delivers cGAMP into target cells. cGAMP transferred by LL-37 activates robust interferon responses and host antiviral immunity in a STING-dependent manner. Furthermore, we report that LL-37 inducers vitamin D3 and sodium butyrate promote host immunity by enhancing endogenous LL-37 expression and its mediated cGAMP immune response. Collectively, our data uncover an essential role of LL-37 in innate immune activation and suggest new strategies for immunotherapy.
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Affiliation(s)
- Xubiao Wei
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China; Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Lulu Zhang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China; Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Yinlong Yang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Yanfei Hou
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Yifang Xu
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Zhimeng Wang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China; Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Huili Su
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Fangping Han
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Jing Han
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China; Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Peiyuan Liu
- School of Life Science, Tianjin University, Tianjin, China
| | - Shuiqing Hu
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Matthew D Koci
- Prestage Department of Poultry Science, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC, USA
| | - Xuxu Sun
- Department of Biochemistry and Molecular Cell Biology, State Key Laboratory of Oncogenes and Related Genes, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University College of Basic Medical Science, Shanghai, China.
| | - Conggang Zhang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China; Tsinghua-Peking Center for Life Sciences, Beijing, China.
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19
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Liu Y, Yang W, Wen Y, Niu Q, Yang J, Guan G, Yin H, Zheng H, Li D, Liu Z. [The E248R protein of African swine fever virus inhibits the cGAS-STING-mediated innate immunity]. Sheng Wu Gong Cheng Xue Bao 2022; 38:1837-1846. [PMID: 35611732 DOI: 10.13345/j.cjb.210397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We researched the mechanism of African swine fever virus (ASFV) protein E248R in regulating the cGAS-STING pathway. First, we verified via the dual-luciferase reporter assay system that E248R protein inhibited the secretion of IFN-β induced by cGAS-STING or HT-DNA in a dose-dependent manner. The relative quantitative PCR analysis indicated that the overexpression of E248R inhibited HT-DNA-induced transcription of IFN-b1, RANTES, IL-6, and TNF-α in PK-15 cells. Next, we found that E248R interacted with STING by co-immunoprecipitation assay and laser confocal microscopy. Finally, we demonstrated that E248R inhibited the expression of STING protein by using Western blotting. We demonstrated for the first time that the E248R protein of ASFV suppressed the host innate immune response via inhibiting STING expression. The results are pivotal in extending the understanding of the ASFV immune escape and can guide the design of vaccines against ASFV.
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Affiliation(s)
- Yinguang Liu
- State Key Laboratory of Veterinary Etiological Biology/African Swine Fever Regional Laboratory of China (Lanzhou)/Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, Gansu, China
| | - Wenping Yang
- State Key Laboratory of Veterinary Etiological Biology/African Swine Fever Regional Laboratory of China (Lanzhou)/Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, Gansu, China
| | - Yuan Wen
- State Key Laboratory of Veterinary Etiological Biology/African Swine Fever Regional Laboratory of China (Lanzhou)/Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, Gansu, China
| | - Qingli Niu
- State Key Laboratory of Veterinary Etiological Biology/African Swine Fever Regional Laboratory of China (Lanzhou)/Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, Gansu, China
| | - Jifei Yang
- State Key Laboratory of Veterinary Etiological Biology/African Swine Fever Regional Laboratory of China (Lanzhou)/Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, Gansu, China
| | - Guiquan Guan
- State Key Laboratory of Veterinary Etiological Biology/African Swine Fever Regional Laboratory of China (Lanzhou)/Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, Gansu, China
| | - Hong Yin
- State Key Laboratory of Veterinary Etiological Biology/African Swine Fever Regional Laboratory of China (Lanzhou)/Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, Gansu, China.,Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Haixue Zheng
- State Key Laboratory of Veterinary Etiological Biology/African Swine Fever Regional Laboratory of China (Lanzhou)/Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, Gansu, China
| | - Dan Li
- State Key Laboratory of Veterinary Etiological Biology/African Swine Fever Regional Laboratory of China (Lanzhou)/Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, Gansu, China
| | - Zhijie Liu
- State Key Laboratory of Veterinary Etiological Biology/African Swine Fever Regional Laboratory of China (Lanzhou)/Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, Gansu, China
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20
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Li Y, Chen H, Yang Q, Wan L, Zhao J, Wu Y, Wang J, Yang Y, Niu M, Liu H, Liu J, Yang H, Wan S, Wang Y, Bao D. Increased Drp1 promotes autophagy and ESCC progression by mtDNA stress mediated cGAS-STING pathway. J Exp Clin Cancer Res 2022; 41:76. [PMID: 35209954 PMCID: PMC8867650 DOI: 10.1186/s13046-022-02262-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 01/14/2022] [Indexed: 12/30/2022]
Abstract
Background Mitochondrial dynamics homeostasis is important for cell metabolism, growth, proliferation, and immune responses. The critical GTPase for mitochondrial fission, Drp1 is frequently upregulated in many cancers and is closely implicated in tumorigenesis. However, the mechanism underling Drp1 to influence tumor progression is largely unknown, especially in esophageal squamous cell carcinoma (ESCC). Methods Immunohistochemistry was used to examine Drp1 and LC3B expression in tissues of ESCC patients. Autophagic vesicles were investigated by transmission electron microscopy. Fluorescent LC3B puncta and mitochondrial nucleoid were observed by fluorescent and confocal microscopy. Mitochondrial function was evaluated by mitochondrial membrane potential, ROS and ATP levels. Xenograft tumor model was performed in BALB/c nude mice to analyze the role of Drp1 on ESCC progression. Results We found that Drp1 high expression is correlated with poor overall survival of ESCC patients. Drp1 overexpression promotes cell proliferation and xenograft ESCC tumor growth by triggering autophagy. Furthermore, we demonstrated that Drp1 overexpression disturbs mitochondrial function and subsequent induces mitochondrial DNA (mtDNA) released into the cytosol thereby inducing cytosolic mtDNA stress. Mechanistically, cytosolic mtDNA activates the cGAS-STING pathway and facilitates autophagy, which promotes ESCC cancer growth. Moreover, mtDNA digestion with DNase I and autophagy inhibition with chloroquine attenuates the cGAS-STING pathway activation and ESCC cancer growth. Conclusions Our finding reveals that Drp1 overexpression induces mitochondrial dysfunction and cytosolic mtDNA stress, which subsequently activates the cGAS-STING pathway, triggers autophagy and promotes ESCC progression. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-022-02262-z.
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Affiliation(s)
- Yujia Li
- Laboratory of Cancer Biomarkers and Liquid Biopsy, School of Pharmacy, Henan University, Kaifeng, 475004, Henan, China.,School of Life Sciences, Henan University, Kaifeng, 475004, Henan, China
| | - Hui Chen
- Laboratory of Cancer Biomarkers and Liquid Biopsy, School of Pharmacy, Henan University, Kaifeng, 475004, Henan, China
| | - Qi Yang
- Laboratory of Cancer Biomarkers and Liquid Biopsy, School of Pharmacy, Henan University, Kaifeng, 475004, Henan, China.,School of Life Sciences, Henan University, Kaifeng, 475004, Henan, China
| | - Lixin Wan
- Nanyang Central Hospital, Henan University, Nanyang, 473000, Henan, China
| | - Jing Zhao
- Laboratory of Cancer Biomarkers and Liquid Biopsy, School of Pharmacy, Henan University, Kaifeng, 475004, Henan, China
| | - Yuanyuan Wu
- Laboratory of Cancer Biomarkers and Liquid Biopsy, School of Pharmacy, Henan University, Kaifeng, 475004, Henan, China
| | - Jiaxin Wang
- Laboratory of Cancer Biomarkers and Liquid Biopsy, School of Pharmacy, Henan University, Kaifeng, 475004, Henan, China
| | - Yating Yang
- Laboratory of Cancer Biomarkers and Liquid Biopsy, School of Pharmacy, Henan University, Kaifeng, 475004, Henan, China
| | - Menglan Niu
- Laboratory of Cancer Biomarkers and Liquid Biopsy, School of Pharmacy, Henan University, Kaifeng, 475004, Henan, China
| | - Hongliang Liu
- Laboratory of Cancer Biomarkers and Liquid Biopsy, School of Pharmacy, Henan University, Kaifeng, 475004, Henan, China
| | - Junqi Liu
- Department of Radiation Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Hushan Yang
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Shaogui Wan
- Laboratory of Cancer Biomarkers and Liquid Biopsy, School of Pharmacy, Henan University, Kaifeng, 475004, Henan, China. .,Center for Molecular Pathology, First Affiliated Hospital, Gannan Medical University, Ganzhou, 341000, Jiangxi, China.
| | - Yanming Wang
- School of Life Sciences, Henan University, Kaifeng, 475004, Henan, China.
| | - Dengke Bao
- Laboratory of Cancer Biomarkers and Liquid Biopsy, School of Pharmacy, Henan University, Kaifeng, 475004, Henan, China. .,Nanyang Central Hospital, Henan University, Nanyang, 473000, Henan, China.
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21
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Liang J, Hong Z, Sun B, Guo Z, Wang C, Zhu J. The Alternatively Spliced Isoforms of Key Molecules in the cGAS-STING Signaling Pathway. Front Immunol 2021; 12:771744. [PMID: 34868032 PMCID: PMC8636596 DOI: 10.3389/fimmu.2021.771744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 11/03/2021] [Indexed: 01/04/2023] Open
Abstract
Alternative splicing of pre-mRNA increases transcriptome and proteome diversity by generating distinct isoforms that encode functionally diverse proteins, thus affecting many biological processes, including innate immunity. cGAS-STING signaling pathway, whose key molecules also undergo alternative splicing, plays a crucial role in regulating innate immunity. Protein isoforms of key components in the cGAS-STING-TBK1-IRF3 axis have been detected in a variety of species. A chain of evidence showed that these protein isoforms exhibit distinct functions compared to their normal counterparts. The mentioned isoforms act as positive or negative modulators in interferon response via distinct mechanisms. Particularly, we highlight that alternative splicing serves a vital function for the host to avoid the overactivation of the cGAS-STING signaling pathway and that viruses can utilize alternative splicing to resist antiviral response by the host. These findings could provide insights for potential alternative splicing-targeting therapeutic applications.
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Affiliation(s)
- Jiaqian Liang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Ze Hong
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Boyue Sun
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Zhaoxi Guo
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Chen Wang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Juanjuan Zhu
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
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22
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Dansako H, Ueda Y, Okumura N, Satoh S, Sugiyama M, Mizokami M, Ikeda M, Kato N. The cyclic GMP-AMP synthetase-STING signaling pathway is required for both the innate immune response against HBV and the suppression of HBV assembly. FEBS J 2015; 283:144-56. [PMID: 26471009 DOI: 10.1111/febs.13563] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 10/01/2015] [Accepted: 10/13/2015] [Indexed: 12/14/2022]
Abstract
During viral replication, the innate immune response is induced through the recognition of viral replication intermediates by host factor(s). One of these host factors, cyclic GMP-AMP synthetase (cGAS), was recently reported to be involved in the recognition of viral DNA derived from DNA viruses. However, it is uncertain whether cGAS is involved in the recognition of hepatitis B virus (HBV), which is a hepatotropic DNA virus. In the present study, we demonstrated that HBV genome-derived double-stranded DNA induced the innate immune response through cGAS and its adaptor protein, stimulator of interferon genes (STING), in human hepatoma Li23 cells expressing high levels of cGAS. In addition, we demonstrated that HBV infection induced ISG56 through the cGAS-STING signaling pathway. This signaling pathway also showed an antiviral response towards HBV through the suppression of viral assembly. From these results, we conclude that the cGAS-STING signaling pathway is required for not only the innate immune response against HBV but also the suppression of HBV assembly. The cGAS-STING signaling pathway may thus be a novel target for anti-HBV strategies.
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Affiliation(s)
- Hiromichi Dansako
- Department of Tumor Virology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Youki Ueda
- Department of Tumor Virology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Nobuaki Okumura
- Department of Tumor Virology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Shinya Satoh
- Department of Tumor Virology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Masaya Sugiyama
- Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Ichikawa, Japan
| | - Masashi Mizokami
- Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Ichikawa, Japan
| | - Masanori Ikeda
- Department of Tumor Virology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan.,Department of Persistent and Oncogenic Viruses, Center for Chronic Viral Disease, Kagoshima University Graduate School of Medical and Dental Sciences, Japan
| | - Nobuyuki Kato
- Department of Tumor Virology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
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