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Ling YY, Li ZY, Mu X, Kong YJ, Hao L, Wang WJ, Shen QH, Zhang YB, Tan CP. Self-assembly of a ruthenium-based cGAS-STING photoactivator for carrier-free cancer immunotherapy. Eur J Med Chem 2024; 275:116638. [PMID: 38950489 DOI: 10.1016/j.ejmech.2024.116638] [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: 05/04/2024] [Revised: 06/21/2024] [Accepted: 06/27/2024] [Indexed: 07/03/2024]
Abstract
The cGAS (cyclic GMP-AMP synthase)-STING (stimulator of interferon genes) pathway promotes antitumor immune responses by sensing cytosolic DNA fragments leaked from nucleus and mitochondria. Herein, we designed a highly charged ruthenium photosensitizer (Ru1) with a β-carboline alkaloid derivative as the ligand for photo-activating of the cGAS-STING pathway. Due to the formation of multiple non-covalent intermolecular interactions, Ru1 can self-assemble into carrier-free nanoparticles (NPs). By incorporating the triphenylphosphine substituents, Ru1 can target and photo-damage mitochondrial DNA (mtDNA) to cause the cytoplasmic DNA leakage to activate the cGAS-STING pathway. Finally, Ru1 NPs show potent antitumor effects and elicit intense immune responses in vivo. In conclusion, we report the first self-assembling mtDNA-targeted photosensitizer, which can effectively activate the cGAS-STING pathway, thus providing innovations for the design of new photo-immunotherapeutic agents.
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Affiliation(s)
- Yu-Yi Ling
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, Guangzhou, 510006, PR China; Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, Guangzhou, 510006, PR China
| | - Zhi-Yuan Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, Guangzhou, 510006, PR China; Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, Guangzhou, 510006, PR China
| | - Xia Mu
- State Key Laboratory of Molecular Reaction, Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China
| | - Ya-Jie Kong
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, Guangzhou, 510006, PR China; Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, Guangzhou, 510006, PR China
| | - Liang Hao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, Guangzhou, 510006, PR China; Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, Guangzhou, 510006, PR China
| | - Wen-Jin Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, Guangzhou, 510006, PR China; Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, Guangzhou, 510006, PR China
| | - Qing-Hua Shen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, Guangzhou, 510006, PR China; Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, Guangzhou, 510006, PR China
| | - Yue-Bin Zhang
- State Key Laboratory of Molecular Reaction, Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China.
| | - Cai-Ping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-Sen University, Guangzhou, 510006, PR China; Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, Guangzhou, 510006, PR China.
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2
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Paulis A, Onali A, Vidalain PO, Lotteau V, Jaquemin C, Corona A, Distinto S, Delogu GL, Tramontano E. Identification of new benzofuran derivatives as STING agonists with broad-spectrum antiviral activity. Virus Res 2024; 347:199432. [PMID: 38969014 PMCID: PMC11294726 DOI: 10.1016/j.virusres.2024.199432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 06/22/2024] [Accepted: 07/02/2024] [Indexed: 07/07/2024]
Abstract
The Stimulator of Interferon Genes (STING) is involved in cytosolic DNA sensing and type I Interferons (IFN-I) induction. Aiming to identify new STING agonists with antiviral activity and given the known biological activity of benzothiazole and benzimidazole derivatives, a series of benzofuran derivatives were tested for their ability to act as STING agonists, induce IFN-I and inhibit viral replication. Compounds were firstly evaluated in a gene reporter assay measuring luciferase activity driven by the human IFN-β promoter in cells expressing exogenous STING (HEK293T). Seven of them were able to induce IFN-β transcription while no induction of the IFN promoter was observed in the presence of a mutated and inactive STING, showing specific protein-ligand interaction. Docking studies were performed to predict their putative binding mode. The best hit compounds were then tested on human coronavirus 229E replication in BEAS-2B and MRC-5 cells and three derivatives showed EC50 values in the μM range. Such compounds were also tested on SARS-CoV-2 replication in BEAS-2B cells and in Calu-3 showing they can inhibit SARS-CoV-2 replication at nanomolar concentrations. To further confirm their IFN-dependent antiviral activity, compounds were tested to verify their effect on phospho-IRF3 nuclear localization, that was found to be induced by benzofuran derivatives, and SARS-CoV-2 replication in Vero E6 cells, lacking IFN production, founding them to be inactive. In conclusion, we identified benzofurans as STING-dependent immunostimulatory compounds and host-targeting inhibitors of coronaviruses representing a novel chemical scaffold for the development of broad-spectrum antivirals.
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Affiliation(s)
- A Paulis
- Department of Life and Environmental Sciences, University of Cagliari, Monserrato 09042, Italy
| | - A Onali
- Department of Life and Environmental Sciences, University of Cagliari, Monserrato 09042, Italy
| | - P O Vidalain
- CIRI, Centre International de Recherche en Infectiologie, University Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, Lyon F-69007, France
| | - V Lotteau
- CIRI, Centre International de Recherche en Infectiologie, University Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, Lyon F-69007, France
| | - C Jaquemin
- CIRI, Centre International de Recherche en Infectiologie, University Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, Lyon F-69007, France
| | - A Corona
- Department of Life and Environmental Sciences, University of Cagliari, Monserrato 09042, Italy
| | - S Distinto
- Department of Life and Environmental Sciences, University of Cagliari, Monserrato 09042, Italy.
| | - G L Delogu
- Department of Life and Environmental Sciences, University of Cagliari, Monserrato 09042, Italy
| | - E Tramontano
- Department of Life and Environmental Sciences, University of Cagliari, Monserrato 09042, Italy.
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3
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Yang Y, Ren C, Xu X, Yang X, Shao W. Decoding the connection between SLE and DNA Sensors: A comprehensive review. Int Immunopharmacol 2024; 137:112446. [PMID: 38878488 DOI: 10.1016/j.intimp.2024.112446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 06/06/2024] [Accepted: 06/06/2024] [Indexed: 07/11/2024]
Abstract
Systemic lupus erythematosus (SLE) is recognized as a prevalent autoimmune disorder characterized by a multifaceted pathogenesis potentially influenced by a combination of environmental factors, genetic predisposition, and hormonal regulation. The continuous study of immune system activation is especially intriguing. Analysis of blood samples from individuals with SLE reveals an abnormal increase in interferon levels, along with the existence of anti-double-stranded DNA antibodies. This evidence suggests that the development of SLE may be initiated by innate immunity. The presence of abnormal dsDNA fragments can activate DNA sensors within cells, particularly immune cells, leading to the initiation of downstream signaling cascades that result in the upregulation of relevant cytokines and the subsequent initiation of adaptive immune responses, such as B cell differentiation and T cell activation. The intricate pathogenesis of SLE results in DNA sensors exhibiting a wide range of functions in innate immune responses that are subject to variation based on cell types, developmental processes, downstream effector signaling pathways and other factors. The review aims to reorganize how DNA sensors influence signaling pathways and contribute to the development of SLE according to current studies, with the aspiration of furnishing valuable insights for future investigations into the pathological mechanisms of SLE and potential treatment approaches.
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Affiliation(s)
- Yuxiang Yang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China; Medical School of Tianjin University, Tianjin, China; School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Changhuai Ren
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China; Medical School of Tianjin University, Tianjin, China
| | - Xiaopeng Xu
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China; Medical School of Tianjin University, Tianjin, China
| | - Xinyi Yang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China; Medical School of Tianjin University, Tianjin, China; School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Wenwei Shao
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China; Medical School of Tianjin University, Tianjin, China; State Key Laboratory of Advanced Medical Materials and Devices, Tianjin University, Tianjin, China.
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4
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Zhang D, Du L, Gao H, Yuan C, Lin Z. Structural insight into the Csx1-Crn2 fusion self-limiting ribonuclease of type III CRISPR system. Nucleic Acids Res 2024; 52:8419-8430. [PMID: 38967023 DOI: 10.1093/nar/gkae569] [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: 04/02/2024] [Revised: 06/14/2024] [Accepted: 06/25/2024] [Indexed: 07/06/2024] Open
Abstract
In the type III CRISPR system, cyclic oligoadenylate (cOA) molecules act as second messengers, activating various promiscuous ancillary nucleases that indiscriminately degrade host and viral DNA/RNA. Conversely, ring nucleases, by specifically cleaving cOA molecules, function as off-switches to protect host cells from dormancy or death, and allow viruses to counteract immune responses. The fusion protein Csx1-Crn2, combining host ribonuclease with viral ring nuclease, represents a unique self-limiting ribonuclease family. Here, we describe the structures of Csx1-Crn2 from the organism of Marinitoga sp., in both its full-length and truncated forms, as well as in complex with cA4. We show that Csx1-Crn2 operates as a homo-tetramer, a configuration crucial for preserving the structural integrity of the HEPN domain and ensuring effective ssRNA cleavage. The binding of cA4 to the CARF domain triggers significant conformational changes across the CARF, HTH, and into the HEPN domains, leading the two R-X4-6-H motifs to form a composite catalytic site. Intriguingly, an acetate ion was found to bind at this composite site by mimicking the scissile phosphate. Further molecular docking analysis reveals that the HEPN domain can accommodate a single ssRNA molecule involving both R-X4-6-H motifs, underscoring the importance of HEPN domain dimerization for its activation.
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Affiliation(s)
- Danping Zhang
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Liyang Du
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Haishan Gao
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
| | - Cai Yuan
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Zhonghui Lin
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
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5
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Xu L, Xu Q, Mo W, Chen H, Wu S, Qin Q, Wei J. Singapore grouper iridovirus VP146 modulates the cGAS-STING signaling pathway to escape the interferon immune response. FISH & SHELLFISH IMMUNOLOGY 2024; 151:109684. [PMID: 38852788 DOI: 10.1016/j.fsi.2024.109684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 05/20/2024] [Accepted: 06/07/2024] [Indexed: 06/11/2024]
Abstract
Singapore grouper iridovirus (SGIV) is a large double-stranded DNA virus that has caused significant economic losses to the grouper aquaculture industry. So far, the structure and function of SGIV proteins have been successively reported. In the present paper, the protein of SGIV VP146 was cloned and identified. VP146 was whole-cell distributed in GS cells. VP146 promoted SGIV replication and inhibited the transcription of interferon-related genes as well as pro-inflammatory cytokines in GS cells. In addition, VP146 was involved in the regulation of the cGAS-STING signaling pathway, and decreased cGAS-STING induced the promoter of ISRE and NF-κB. VP146 interacted with the proteins of cGAS, STING, TBK1, and IRF3 from grouper, but did not affect the binding of grouper STING to grouper TBK1 and grouper IRF3. Interestingly, grouper STING was able to affect the intracellular localization of VP146. Four segment structural domains of grouper STING were constructed, and grouper STING-CTT could affect the intracellular localization of VP146. VP146 had no effect on the self-binding of EcSITNG, nor on the binding of EcSTING to EcTBK1 and EcIRF3. Together, the results demonstrated that SGIV VP146 modulated the cGAS-STING signaling pathway to escape the interferon immune response.
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Affiliation(s)
- Linting Xu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400, China
| | - Qiongyue Xu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400, China
| | - Weifu Mo
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400, China
| | - Hong Chen
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400, China
| | - Siting Wu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400, China
| | - Qiwei Qin
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China.
| | - Jingguang Wei
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400, China.
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6
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Nie C, Ye J, Jiang JH, Chu X. DNA nanodevice as a multi-module co-delivery platform for combination cancer immunotherapy. J Colloid Interface Sci 2024; 667:1-11. [PMID: 38615618 DOI: 10.1016/j.jcis.2024.04.069] [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: 02/21/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024]
Abstract
A major challenge in combining cancer immunotherapy is the efficient delivery of multiple types of immunological stimulators to elicit a robust anti-tumor immune response and reprogram the immunosuppressive tumor microenvironment (TME). Here, we developed a DNA nanodevice that was generated by precisely assembling three types of immunological stimulators. The doxorubicin (Dox) component induced immunogenic cell death (ICD) in tumor cells and enhanced phagocytosis of antigen-presenting cells (APCs). Exogenous double-stranded DNA (dsDNA) could act as a molecular adjuvant to activate the stimulator of interferon genes (STING) signaling in APCs by engulfing dying tumor cells. Interleukin (IL)-12 and small hairpin programmed cell death-ligand 1 (shPD-L1) transcription templates were designed to regulate TME. Additionally, for targeted drug delivery, multiple cyclo[Arg-Gly-Asp-(d-Phe)-Cys] (cRGD) peptide units on DNA origami were employed. The incorporation of disulfide bonds allowed the release of multiple modules in response to intracellular glutathione (GSH) in tumors. The nanodevice promoted the infiltration of CD8+ and CD4+ cells into the tumor and generated a highly inflamed TME, thereby enhancing the effectiveness of cancer immunotherapy. Our research results indicate that the nanodevice we constructed can effectively inhibit tumor growth and prevent lung metastasis without obvious systemic toxicity, providing a promising strategy for cancer combination treatment.
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Affiliation(s)
- Cunpeng Nie
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jingxuan Ye
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jian-Hui Jiang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xia Chu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
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7
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Zhang J, Wu Y, Wang Y, Wang J, Ye Y, Yin H, Sun N, Qin B, Sun N. TRIM35 Negatively Regulates the cGAS-STING-Mediated Signaling Pathway by Attenuating K63-Linked Ubiquitination of STING. Inflammation 2024:10.1007/s10753-024-02093-4. [PMID: 39088122 DOI: 10.1007/s10753-024-02093-4] [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: 04/14/2024] [Revised: 06/21/2024] [Accepted: 06/27/2024] [Indexed: 08/02/2024]
Abstract
The cGAS-STING-mediated antiviral response plays an important role in the defense against DNA virus infection. Tripartite motif protein 35 (TRIM35), an E3 ubiquitin ligase, was identified as a positive regulator of RLR-mediated antiviral signaling in our previous study, but the effect of TRIM35 on the cGAS-STING signaling pathway has not been elucidated. Herein, we showed that TRIM35 negatively regulates the cGAS-STING signaling pathway by directly targeting STING. TRIM35 overexpression significantly inhibited the cGAMP-triggered phosphorylation of TBK1 and IRF3, attenuating IFN-β expression and the downstream antiviral response. Mechanistically, TRIM35 colocalized and directly interacted with STING in the cytoplasm. TRM35 removed K63-linked ubiquitin from STING through the C36 and C44 sites in the RING domain, which impaired the interaction of STING with TBK1 or IKKε. In addition, we demonstrated that the RING domain is a key region for the antiviral effects of TIRM35. These results collectively indicate that TRIM35 negatively regulates type I interferon (IFN-I) production by targeting and deubiquitinating STING. TRIM35 may be a potential therapeutic target for controlling viral infection.
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Affiliation(s)
- Jikai Zhang
- Xuzhou Medical University, Xuzhou, China
- Department of Pathogen Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Yuhao Wu
- Xuzhou Medical University, Xuzhou, China
| | - Yiwen Wang
- Xuzhou Medical University, Xuzhou, China
| | - Jing Wang
- Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yinlin Ye
- Xuzhou Medical University, Xuzhou, China
| | - Hang Yin
- Xuzhou Medical University, Xuzhou, China
| | - Ningye Sun
- Xuzhou Medical University, Xuzhou, China
| | | | - Nan Sun
- Xuzhou Medical University, Xuzhou, China.
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, China.
- Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.
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8
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Li Y, Li Z, Lu J, Qu G, Qin Q, Zhang C, Bai Y, Wang D, Luo S, Li B, Han Y, Chen W, Zhen Q, Sun L. Correlation between double-stranded DNA and acute urticaria. Int J Dermatol 2024; 63:e140-e147. [PMID: 38385899 DOI: 10.1111/ijd.17086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Acute urticaria is a prevalent inflammatory dermatosis characterized by fulminant wheals, often accompanied by severe pruritis. It may also cause nausea, vomiting, and abdominal pain. Numerous studies have substantiated the pivotal involvement of double-stranded DNA (dsDNA) in autoimmunity. However, the role of dsDNA in the pathogenesis of acute urticaria is unclear. METHODS We measured serum dsDNA levels in patients and controls. The relationship between dsDNA levels and environmental exposures (temperature, ultraviolet [UV] index, and season) was investigated by correlating disease onset dates with archived meteorological data. Finally, we used quantitative PCR to determine the expressions of genes encoding dsDNA receptors, single-stranded RNA (ssRNA) receptors, exosome formation, and type I interferon in the peripheral blood of patients and controls. RESULTS Serum dsDNA levels were significantly higher in patients with acute urticaria compared with controls (mean values 1.38 and 0.94 ng/ml, respectively, P < 0.001). dsDNA levels were higher in patients exposed to higher environmental temperatures and UV indices and were higher during the summer months. We also found that the expressions of genes encoding dsDNA receptors, ssRNA receptors, absent in melanoma factor 2 (AIM2)-related inflammatory factors, and interferon alpha were up-regulated in patients. CONCLUSIONS We demonstrated that serum dsDNA levels are elevated in acute urticaria and are influenced by climatic factors such as temperature, ultraviolet index, and season. We also found that elevated dsDNA promotes the expression of AIM2-related factors and type I interferons. This study generates new hypotheses regarding the pathogenesis of acute urticaria and suggests novel therapeutic targets.
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Affiliation(s)
- Yuanyuan Li
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Zhuo Li
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Jiayi Lu
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Guangbo Qu
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Qin Qin
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Chang Zhang
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Yuanming Bai
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Daiyue Wang
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Sihan Luo
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Bao Li
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- The Comprehensive Lab, College of Basic Medicine, Anhui Medical University, Hefei, China
| | - Yang Han
- Department of Dermatology, North China University of Science and Technology Affiliated Hospital, Tangshan, China
- Health Science Center, North China University of Science and Technology, Tangshan, China
- Inflammation and Immune Diseases Laboratory of North China University of Science and Technology, Tangshan, China
| | - Weiwei Chen
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
| | - Qi Zhen
- Department of Dermatology, North China University of Science and Technology Affiliated Hospital, Tangshan, China
- Health Science Center, North China University of Science and Technology, Tangshan, China
- Inflammation and Immune Diseases Laboratory of North China University of Science and Technology, Tangshan, China
| | - Liangdan Sun
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China
- Department of Dermatology, North China University of Science and Technology Affiliated Hospital, Tangshan, China
- Health Science Center, North China University of Science and Technology, Tangshan, China
- Inflammation and Immune Diseases Laboratory of North China University of Science and Technology, Tangshan, China
- School of Public Health, North China University of Science and Technology, Tangshan, China
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9
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Mohammadi S, Khorasani M. Implications of the cGAS-STING pathway in diabetes: Risk factors and therapeutic strategies. Int J Biol Macromol 2024:134210. [PMID: 39069057 DOI: 10.1016/j.ijbiomac.2024.134210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 07/20/2024] [Accepted: 07/25/2024] [Indexed: 07/30/2024]
Abstract
Diabetes mellitus is an increasingly prevalent metabolic disorder characterized by chronic hyperglycemia and impaired insulin action. Although the pathogenesis of diabetes is multifactorial, emerging evidence suggests that chronic low-grade inflammation plays a significant role in the development and progression of the disease. The cyclic GMP-AMP synthase (cGAS) and its downstream signaling pathway, the stimulator of interferon genes (STING), have recently gained attention in the field of diabetes research. This article aims to provide an overview of the role of cGAS-STING in diabetes, focusing on its involvement in the regulation of immune responses, inflammation, insulin resistance, and β-cell dysfunction. Understanding the contribution of cGAS-STING signaling in diabetes may lead to the development of targeted therapeutic strategies for this prevalent metabolic disorder. The results section presents key findings from multiple studies on the impact of STING in diabetes. It discusses the influence of STING on inflammation levels within a diabetic environment, its effect on insulin resistance, and its implications for the development and progression of diabetes. The cGAS-STING signaling pathway plays a crucial role in the development and progression of diabetes.
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Affiliation(s)
- Saeed Mohammadi
- Natural and Medical Sciences Research Center, University of Nizwa, 611, Oman
| | - Milad Khorasani
- Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran; Department of Biochemistry and Nutrition, Neyshabur University of Medical Sciences, Neyshabur, Iran.
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10
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Hu X, Chen J, Dai W, Xiao Y, Chen X, Chen Z, Zhang S, Hu Y. PHLDA1-PRDM1 mediates the effect of lentiviral vectors on fate-determination of human retinal progenitor cells. Cell Mol Life Sci 2024; 81:305. [PMID: 39012348 DOI: 10.1007/s00018-024-05279-z] [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: 12/11/2023] [Revised: 03/30/2024] [Accepted: 05/13/2024] [Indexed: 07/17/2024]
Abstract
Lentiviral vectors have markedly enhanced gene therapy efficiency in treating congenital diseases, but their long-term safety remains controversial. Most gene therapies for congenital eye diseases need to be carried out at early ages, yet the assessment of related risks to ocular development posed by lentiviral vectors is challenging. Utilizing single-cell transcriptomic profiling on human retinal organoids, this study explored the impact of lentiviral vectors on the retinal development and found that lentiviral vectors can cause retinal precursor cells to shift toward photoreceptor fate through the up-regulation of key fate-determining genes such as PRDM1. Further investigation demonstrated that the intron and intergenic region of PRDM1 was bound by PHLDA1, which was also up-regulated by lentiviral vectors exposure. Importantly, knockdown of PHLDA1 successfully suppressed the lentivirus-induced differentiation bias of photoreceptor cells. The findings also suggest that while lentiviral vectors may disrupt the fate determination of retinal precursor cells, posing risks in early-stage retinal gene therapy, these risks could potentially be reduced by inhibiting the PHLDA1-PRDM1 axis.
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Affiliation(s)
- Xing Hu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Jia Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Wangxuan Dai
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Yuhua Xiao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Xu Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Zheyao Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Shuyao Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Youjin Hu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China.
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11
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Fung KY, de Geus ED, Ying L, Cumming H, Bourke N, Foster SC, Hertzog PJ. Expression of Interferon Epsilon in Mucosal Epithelium is Regulated by Elf3. Mol Cell Biol 2024; 44:334-343. [PMID: 38975675 PMCID: PMC11296529 DOI: 10.1080/10985549.2024.2366207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 07/09/2024] Open
Abstract
Interferon epsilon (IFNε) is a unique type I interferon (IFN) that shows distinct constitutive expression in reproductive tract epithelium. Understanding how IFNε expression is regulated is critical for the mechanism of action in protecting the mucosa from infection. Combined computational and experimental investigation of the promoter of IFNε predicted transcription factor binding sites for the ETS family of transcription factors. We demonstrate here that Ifnε is regulated by Elf3, an epithelial restricted member of the ETS family. It is co-expressed with IFNε at the epithelium of uterus, lung and intestine, and we focused on regulation of IFNε expression in the uterus. Promoter reporter studies demonstrated that Elf3 was a strong driver of Ifnε expression; knockdown of Elf3 reduced expression levels of IFNε; Elf3 regulated Ifnε expression and chromatin immunoprecipitation (ChIP) confirmed the direct binding of Elf3 to the IFNε promoter. These data show that Elf3 is important in regulating protective mucosal immunity by driving constitutive expression of IFNε to protect mucosal tissues from infection in at least three organ systems.
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Affiliation(s)
- Ka Yee Fung
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Eveline D. de Geus
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Le Ying
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Helen Cumming
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Nollaig Bourke
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Samuel C. Foster
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
| | - Paul J. Hertzog
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Victoria, Australia
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12
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Malik AA, Shariq M, Sheikh JA, Fayaz H, Srivastava G, Thakuri D, Ahuja Y, Ali S, Alam A, Ehtesham NZ, Hasnain SE. Regulation of Type I Interferon and Autophagy in Immunity against Mycobacterium Tuberculosis: Role of CGAS and STING1. Adv Biol (Weinh) 2024:e2400174. [PMID: 38977406 DOI: 10.1002/adbi.202400174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/22/2024] [Indexed: 07/10/2024]
Abstract
Mycobacterium tuberculosis (M. tb) is a significant intracellular pathogen responsible for numerous infectious disease-related deaths worldwide. It uses ESX-1 T7SS to damage phagosomes and to enter the cytosol of host cells after phagocytosis. During infection, M. tb and host mitochondria release dsDNA, which activates the CGAS-STING1 pathway. This pathway leads to the production of type I interferons and proinflammatory cytokines and activates autophagy, which targets and degrades bacteria within autophagosomes. However, the role of type I IFNs in immunity against M. tb is controversial. While previous research has suggested a protective role, recent findings from cgas-sting1 knockout mouse studies have contradicted this. Additionally, a study using knockout mice and non-human primate models uncovered a new mechanism by which neutrophils recruited to lung infections form neutrophil extracellular traps. Activating plasmacytoid dendritic cells causes them to produce type I IFNs, which interfere with the function of interstitial macrophages and increase the likelihood of tuberculosis. Notably, M. tb uses its virulence proteins to disrupt the CGAS-STING1 signaling pathway leading to enhanced pathogenesis. Investigating the CGAS-STING1 pathway can help develop new ways to fight tuberculosis.
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Affiliation(s)
- Asrar Ahmad Malik
- Department of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh, 201306, India
| | - Mohd Shariq
- ICMR-National Institute of Pathology, Ansari Nagar West, New Delhi, 110029, India
| | - Javaid Ahmad Sheikh
- Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, Hamdard Nagar, New Delhi, 110062, India
| | - Haleema Fayaz
- Department of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh, 201306, India
| | - Gauri Srivastava
- Department of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh, 201306, India
| | - Deeksha Thakuri
- Department of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh, 201306, India
| | - Yashika Ahuja
- Department of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh, 201306, India
| | - Saquib Ali
- Department of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh, 201306, India
| | - Anwar Alam
- Department of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh, 201306, India
| | - Nasreen Z Ehtesham
- Department of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh, 201306, India
| | - Seyed E Hasnain
- Department of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh, 201306, India
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, Delhi (IIT-D), Hauz Khas, New Delhi, 110 016, India
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13
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Wang L, Lynch C, Pitroda SP, Piffkó A, Yang K, Huser AK, Liang HL, Weichselbaum RR. Radiotherapy and immunology. J Exp Med 2024; 221:e20232101. [PMID: 38771260 PMCID: PMC11110906 DOI: 10.1084/jem.20232101] [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: 02/29/2024] [Revised: 04/29/2024] [Accepted: 05/06/2024] [Indexed: 05/22/2024] Open
Abstract
The majority of cancer patients receive radiotherapy during the course of treatment, delivered with curative intent for local tumor control or as part of a multimodality regimen aimed at eliminating distant metastasis. A major focus of research has been DNA damage; however, in the past two decades, emphasis has shifted to the important role the immune system plays in radiotherapy-induced anti-tumor effects. Radiotherapy reprograms the tumor microenvironment, triggering DNA and RNA sensing cascades that activate innate immunity and ultimately enhance adaptive immunity. In opposition, radiotherapy also induces suppression of anti-tumor immunity, including recruitment of regulatory T cells, myeloid-derived suppressor cells, and suppressive macrophages. The balance of pro- and anti-tumor immunity is regulated in part by radiotherapy-induced chemokines and cytokines. Microbiota can also influence radiotherapy outcomes and is under clinical investigation. Blockade of the PD-1/PD-L1 axis and CTLA-4 has been extensively investigated in combination with radiotherapy; we include a review of clinical trials involving inhibition of these immune checkpoints and radiotherapy.
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Affiliation(s)
- Liangliang Wang
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL, USA
- Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
| | - Connor Lynch
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL, USA
- Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
| | - Sean P. Pitroda
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL, USA
- Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
| | - András Piffkó
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL, USA
- Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kaiting Yang
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL, USA
- Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
| | - Amy K. Huser
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL, USA
| | - Hua Laura Liang
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL, USA
- Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
| | - Ralph R. Weichselbaum
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL, USA
- Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
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14
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Wang R, Senay TE, Luo TT, Liu W, Regan JM, Salisbury NJH, Galloway DA, You J. Merkel cell polyomavirus protein ALTO modulates TBK1 activity to support persistent infection. PLoS Pathog 2024; 20:e1012170. [PMID: 39074144 DOI: 10.1371/journal.ppat.1012170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 07/01/2024] [Indexed: 07/31/2024] Open
Abstract
While Merkel cell polyomavirus (MCPyV or MCV) is an abundant virus frequently shed from healthy skin, it is one of the most lethal tumor viruses in immunocompromised individuals, highlighting the crucial role of host immunity in controlling MCPyV oncogenic potential. Despite its prevalence, very little is known about how MCPyV interfaces with the host immune response to maintain asymptomatic persistent infection and how inadequate control of MCPyV infection triggers MCC tumorigenesis. In this study, we discovered that the MCPyV protein, known as the Alternative Large Tumor Open Reading Frame (ALTO), also referred to as middle T, effectively primes and activates the STING signaling pathway. It recruits Src kinase into the complex of STING downstream kinase TBK1 to trigger its autophosphorylation, which ultimately activates the subsequent antiviral immune response. Combining single-cell analysis with both loss- and gain-of-function studies of MCPyV infection, we demonstrated that the activity of ALTO leads to a decrease in MCPyV replication. Thus, we have identified ALTO as a crucial viral factor that modulates the STING-TBK1 pathway, creating a negative feedback loop that limits viral infection and maintains a delicate balance with the host immune system. Our study reveals a novel mechanism by which a tumorigenic virus-encoded protein can link Src function in cell proliferation to the activation of innate immune signaling, thereby controlling viral spread, and sustaining persistent infection. Our previous findings suggest that STING also functions as a tumor suppressor in MCPyV-driven oncogenesis. This research provides a foundation for investigating how disruptions in the finely tuned virus-host balance, maintained by STING, could alter the fate of MCPyV infection, potentially encouraging malignancy.
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Affiliation(s)
- Ranran Wang
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Taylor E Senay
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Tiana T Luo
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Wei Liu
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - James M Regan
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Nicholas J H Salisbury
- Pathogen-Associated Malignancies Integrated Research Center (PAM IRC), Fred Hutchinson Cancer Center, Seattle, Washington, United States of America
| | - Denise A Galloway
- Pathogen-Associated Malignancies Integrated Research Center (PAM IRC), Fred Hutchinson Cancer Center, Seattle, Washington, United States of America
| | - Jianxin You
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
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15
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Zhao E, Chen J, Qiu D, Liang R, Lu D, Tan W, Qin Y, Liu Q. STING-deficiency in lung resident mesenchymal stromal cells contributes to the alleviation of LPS-induced lung injury. Biochem Biophys Res Commun 2024; 714:149973. [PMID: 38657444 DOI: 10.1016/j.bbrc.2024.149973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 04/18/2024] [Indexed: 04/26/2024]
Abstract
Acute respiratory distress syndrome (ARDS) is characterized by acute diffuse inflammatory lung injury with a high mortality rate. Mesenchymal stromal cells (MSC) are pluripotent adult cells that can be extracted from a variety of tissues, including the lung. Lung-resident MSC (LR-MSC) located around vascular vessels and act as important regulators of lung homeostasis, regulating the balance between lung injury and repair processes. LR-MSC support the integrity of lung tissue by modulating immune responses and releasing trophic factors. Studies have reported that the STING pathway is involved in the progression of lung injury inflammation, but the specific mechanism is unclear. In this study, we found that STING deficiency could ameliorate lipopolysaccharides (LPS)-induced acute lung injury, STING knockout (STING KO) LR-MSC had an enhanced treatment effect on acute lung injury. STING depletion protected LR-MSC from LPS-induced apoptosis. RNA-sequencing and Western blot results showed that STING KO LR-MSC expressed higher levels of MSC immunoregulatory molecules, such as Igfbp4, Icam1, Hgf and Cox2, than WT LR-MSC. This study highlights that LR-MSC have a therapeutic role in acute lung injury, and we demonstrate that STING deficiency can enhance the immunomodulatory function of LR-MSC in controlling lung inflammation. Thus, STING can be used as an intervention target to enhance the therapeutic effect of MSC.
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Affiliation(s)
- Erming Zhao
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Jiawen Chen
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Dongbo Qiu
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Rukang Liang
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Di Lu
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Weikeng Tan
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Yunfei Qin
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China.
| | - Qiuli Liu
- Biotherapy Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China.
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16
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Chen S, Ye J, Lin Y, Chen W, Huang S, Yang Q, Qian H, Gao S, Hua C. Crucial Roles of RSAD2/viperin in Immunomodulation, Mitochondrial Metabolism and Autoimmune Diseases. Inflammation 2024:10.1007/s10753-024-02076-5. [PMID: 38909344 DOI: 10.1007/s10753-024-02076-5] [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: 04/09/2024] [Revised: 05/22/2024] [Accepted: 06/03/2024] [Indexed: 06/24/2024]
Abstract
Autoimmune diseases are typically characterized by aberrant activation of immune system that leads to excessive inflammatory reactions and tissue damage. Nevertheless, precise targeted and efficient therapies are limited. Thus, studies into novel therapeutic targets for the management of autoimmune diseases are urgently needed. Radical S-adenosyl methionine domain-containing 2 (RSAD2) is an interferon-stimulated gene (ISG) renowned for the antiviral properties of the protein it encodes, named viperin. An increasing number of studies have underscored the new roles of RSAD2/viperin in immunomodulation and mitochondrial metabolism. Previous studies have shown that there is a complex interplay between RSAD2/vipeirn and mitochondria and that binding of the iron-sulfur (Fe-S) cluster is necessary for the involvement of viperin in mitochondrial metabolism. Viperin influences the proliferation and development of immune cells as well as inflammation via different signaling pathways. However, the function of RSAD2/viperin varies in different studies and a comprehensive overview of this emerging theme is lacking. This review will describe the characteristics of RSAD2/viperin, decipher its function in immunometabolic processes, and clarify the crosstalk between RSAD2/viperin and mitochondria. Furthermore, we emphasize the crucial roles of RSAD2 in autoimmune diseases and its potential application value.
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Affiliation(s)
- Siyan Chen
- School of Ophthalmology and Optometry, School of Biomedical Engineering, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China
| | - Jiani Ye
- School of the 2nd Clinical Medical Sciences, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China
| | - Yinfang Lin
- School of the 1st Clinical Medical Sciences, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China
| | - Wenxiu Chen
- School of the 1st Clinical Medical Sciences, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China
| | - Shenghao Huang
- School of the 2nd Clinical Medical Sciences, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China
| | - Qianru Yang
- School of the 1st Clinical Medical Sciences, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China
| | - Hengrong Qian
- School of the 2nd Clinical Medical Sciences, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China
| | - Sheng Gao
- Laboratory Animal Center, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China.
| | - Chunyan Hua
- School of Basic Medical Sciences, Wenzhou Medical University, Zhejiang Province, Wenzhou, 325035, China.
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17
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Luo B, Zhang S, Yu X, Tan D, Wang Y, Wang M. Gasdermin E benefits CD8 +T cell mediated anti-immunity through mitochondrial damage to activate cGAS-STING-interferonβ axis in colorectal cancer. Biomark Res 2024; 12:59. [PMID: 38853246 PMCID: PMC11163757 DOI: 10.1186/s40364-024-00606-9] [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: 01/13/2024] [Accepted: 05/29/2024] [Indexed: 06/11/2024] Open
Abstract
BACKGROUND Pyroptosis belongs to a unique type of programmed cell death among which GSDME is reported to exert anti-tumor immunity. However, the underlying mechanisms of how to boost tumor-infiltrating lymphocytes and whether it could benefit the efficacy of ICIs are still unknown. METHODS CRC samples were used to analyze its relationship with CD8+T cells. GSDME in mouse CRC cell lines CT26/MC38 was overexpressed. The infiltration of CD8+T cells in grafted tumors was determined by multiplex flow cytometric analysis and immunohistochemistry. Transcriptomic analysis was performed in cell lines to define key signatures related to its overexpression. The mechanism of how mtDNA was released by GSDME-induced mitochondrial damage and activated cGAS-STING pathway was observed. Whether GSDME benefited ICIs and the relationships with the genotypes of CRC patients were investigated. RESULTS It had favorable prognostic value in CRC and was positively associated with increased number and functionality of CD8+T cells both in human samples and animal models. This was due to mitochondrial damage and activation of cGAS-STING-IFNβ pathway for the recruitment of CD8+T cells. Mechanically, GSDME overexpression enhanced N-GSDME level, leading to the mitochondrial damage and mtDNA was released into cytosol. Finally, GSDME benefited with ICIs and exhibited positive relationships with MSI in CRC patients. CONCLUSION We presented the mechanism of GSDME in anti-tumor immunity through activating cGAS-STING-IFNβ axis mediated by mitochondrial damage, leading to more infiltration of CD8+T cells with synergistic efficacy with ICIs.
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Affiliation(s)
- Bixian Luo
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shun Zhang
- Department of Urology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xinbo Yu
- Department of Urology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Dan Tan
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Department of General Surgery, Ruijin Hospital Luwan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Ying Wang
- Department of Immunology and Microbiology, Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Mingliang Wang
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Department of General Surgery, Ruijin Hospital Luwan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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18
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Liu W, Yang L, Di C, Sun J, Liu P, Liu H. Nonstructural Protein A238L of the African Swine Fever Virus (ASFV) Enhances Antiviral Immune Responses by Activating the TBK1-IRF3 Pathway. Vet Sci 2024; 11:252. [PMID: 38921999 PMCID: PMC11209439 DOI: 10.3390/vetsci11060252] [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: 05/15/2024] [Revised: 05/26/2024] [Accepted: 05/29/2024] [Indexed: 06/27/2024] Open
Abstract
African swine fever virus (ASFV) is a double-stranded DNA virus with an envelope. ASFV has almost the largest genome among all DNA viruses, and its mechanisms of immune evasion are complex. Better understanding of the molecular mechanisms of ASFV genes will improve vaccine design. A238L, a nonstructural protein of ASFV, inhibits NF-κB activation by suppressing the HAT activity of p300. Whether A238L also affects the transcriptional activity of IRF3 remains unexplored. Here we first confirmed the ability of A238L to suppress NF-κB-activity in L929 cells. A238L inhibits the expression of proinflammatory cytokine genes. In contrast, A238L increased the phosphorylation levels of TBK1 and IRF3 in three different cell lines. A238L increases the IRF3-driven promoter activity and induces IRF3 nuclear translocation. Furthermore, A238L enhanced innate antiviral immunity in the absence or presence of poly d (A:T) or poly (I:C) stimulation, or herpes simplex virus type 1 (HSV-1) or Sendai virus (SeV) infection. This study reveals a previously unrecognized role of A238L in promoting antiviral immune responses by TBK1-IRF3 pathway activation.
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Affiliation(s)
- Wei Liu
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (W.L.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou 225009, China
| | - Lanlan Yang
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (W.L.)
| | - Chuanyuan Di
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (W.L.)
| | - Jing Sun
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (W.L.)
| | - Penggang Liu
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (W.L.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou 225009, China
| | - Huisheng Liu
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (W.L.)
- State Key Laboratory for Animal Disease Control and Prevention, Lanzhou Veterinary Research Institute, College of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Lanzhou University, Lanzhou 730000, China
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19
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Shi W, Xu G, Gao Y, Yang H, Liu T, Zhao J, Li H, Wei Z, Hou X, Chen Y, Wen J, Li C, Zhao J, Zhang P, Wang Z, Xiao X, Bai Z. Compound Danshen Dripping Pill effectively alleviates cGAS-STING-triggered diseases by disrupting STING-TBK1 interaction. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155404. [PMID: 38507852 DOI: 10.1016/j.phymed.2024.155404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/13/2024] [Accepted: 01/31/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND The cyclic GMP-AMP synthase (cGAS)-stimulator of interferon (IFN) genes (STING) pathway is critical in the innate immune system and can be mobilized by cytosolic DNA. The various inflammatory and autoimmune diseases progression is highly correlated with aberrant cGAS-STING pathway activation. While some cGAS-STING pathway inhibitor were identified, there are no drugs that can be applied to the clinic. Compound Danshen Dripping Pill (CDDP) has been successfully used in clinic around the world, but the most common application is limited to cardiovascular disease. Therefore, the purpose of the present investigation was to examine whether CDDP inhibits the cGAS-STING pathway and could be used as a therapeutic agent for multiple cGAS-STING-triggered diseases. METHODS BMDMs, THP1 cells or Trex1-/- BMDMs were stimulated with various cGAS-STING-agonists after pretreatment with CDDP to detect the function of CDDP on IFN-β and ISGs productionn. Next, we detect the influence on IRF3 and P65 nuclear translocation, STING oligomerization and STING-TBK1-IRF3 complex formation of CDDP. Additionally, the DMXAA-mediated activation mice model of cGAS-STING pathway was used to study the effects of CDDP. Trex1-/- mice model and HFD-mediated obesity model were established to clarify the efficacy of CDDP on inflammatory and autoimmune diseases. RESULTS CDDP efficacy suppressed the IRF3 phosphorylation or the generation of IFN-β, ISGs, IL-6 and TNF-α. Mechanistically, CDDP did not influence the STING oligomerization and IRF3-TBK1 and STING-IRF3 interaction, but remarkably eliminated the STING-TBK1 interaction, ultimately blocking the downstream responses. In addition, we also clarified that CDDP could suppress cGAS-STING pathway activation triggered by DMXAA, in vivo. Consistently, CDDP could alleviate multi-organ inflammatory responses in Trex1-/- mice model and attenuate the inflammatory disorders, incleding obesity-induced insulin resistance. CONCLUSION CDDP is a specifically cGAS-STING pathway inhibitor. Furthermore, we provide novel mechanism for CDDP and discovered a clinical agent for the therapy of cGAS-STING-triggered inflammatory and autoimmune diseases.
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Affiliation(s)
- Wei Shi
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Guang Xu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yuan Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Huijie Yang
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Tingting Liu
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jia Zhao
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Hui Li
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Ziying Wei
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiaorong Hou
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yuanyuan Chen
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jincai Wen
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Chengwei Li
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jun Zhao
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Ping Zhang
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhongxia Wang
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiaohe Xiao
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China; National Key Laboratory of Kidney Diseases, China.
| | - Zhaofang Bai
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China; National Key Laboratory of Kidney Diseases, China.
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20
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Liu R, Meng F, Liu T, Yang G, Shan S. RING finger protein 122-like (RNF122L) negatively regulates antiviral immune response by targeting STING in common carp (Cyprinus carpio L.). Int J Biol Macromol 2024; 269:132104. [PMID: 38719016 DOI: 10.1016/j.ijbiomac.2024.132104] [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: 02/27/2024] [Revised: 05/01/2024] [Accepted: 05/03/2024] [Indexed: 05/12/2024]
Abstract
Stimulator of interferon genes (STING), as an imperative adaptor protein in innate immune, responds to nucleic acid from invading pathogens to build antiviral responses in host cells. Aberrant activation of STING may trigger tissue damage and autoimmune diseases. Given the decisive role in initiating innate immune response, the activity of STING is intricately governed by several posttranslational modifications, including phosphorylation and ubiquitination. Here, we cloned and characterized a novel RNF122 homolog from common carp (named CcRNF122L). Expression analysis disclosed that the expression of CcRNF122L is up-regulated under spring viremia of carp virus (SVCV) stimulation in vivo and in vitro. Overexpression of CcRNF122L hampers SVCV- or poly(I:C)-mediated the expression of IFN-1 and ISGs in a dose-dependent way. Mechanistically, CcRNF122L interacts with STING and promotes the polyubiquitylation of STING. This polyubiquitylation event inhibits the aggregation of STING and the subsequent recruitment of TBK1 and IRF3 to the signaling complex. Additionally, the deletion of the TM domain abolishes the negative regulatory function of CcRNF122L. Collectively, our discoveries unveil a mechanism that governs the STING function and the precise adjustment of the innate immune response in teleost.
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Affiliation(s)
- Rongrong Liu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, No.88 East Wenhua Road, Jinan 250014, China
| | - Fei Meng
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, No.88 East Wenhua Road, Jinan 250014, China
| | - Tingting Liu
- Shandong Industrial Technician College, No.6789 West Ring Road, Weifang 261000, China
| | - Guiwen Yang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, No.88 East Wenhua Road, Jinan 250014, China.
| | - Shijuan Shan
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, No.88 East Wenhua Road, Jinan 250014, China.
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21
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Zhong S, Zhou Q, Yang J, Zhang Z, Zhang X, Liu J, Chang X, Wang H. Relationship between the cGAS-STING and NF-κB pathways-role in neurotoxicity. Biomed Pharmacother 2024; 175:116698. [PMID: 38713946 DOI: 10.1016/j.biopha.2024.116698] [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: 02/23/2024] [Revised: 04/16/2024] [Accepted: 05/01/2024] [Indexed: 05/09/2024] Open
Abstract
Neurotoxicity can cause a range of symptoms and disorders in humans, including neurodegenerative diseases, neurodevelopmental disorders, nerve conduction abnormalities, neuroinflammation, autoimmune disorders, and cognitive deficits. The cyclic guanosine-adenosine synthase (cGAS)-stimulator of interferon genes (STING) pathway and NF-κB pathway are two important signaling pathways involved in the innate immune response. The cGAS-STING pathway is activated by the recognition of intracellular DNA, which triggers the production of type I interferons and pro-inflammatory cytokines, such as tumor necrosis factor, IL-1β, and IL-6. These cytokines play a role in oxidative stress and mitochondrial dysfunction in neurons. The NF-κB pathway is activated by various stimuli, such as bacterial lipopolysaccharide, viral particle components, and neurotoxins. NF-κB activation may lead to the production of pro-inflammatory cytokines, which promote neuroinflammation and cause neuronal damage. A potential interaction exists between the cGAS-STING and NF-κB pathways, and NF-κB activation blocks STING degradation by inhibiting microtubule-mediated STING transport. This review examines the progress of research on the roles of these pathways in neurotoxicity and their interrelationships. Understanding the mechanisms of these pathways will provide valuable therapeutic insights for preventing and controlling neurotoxicity.
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Affiliation(s)
- Shiyin Zhong
- Department of Toxicology, School of Public Health, Lanzhou University, Gansu 730000, China
| | - Qiongli Zhou
- Department of Toxicology, School of Public Health, Lanzhou University, Gansu 730000, China
| | - Jirui Yang
- Department of Toxicology, School of Public Health, Lanzhou University, Gansu 730000, China
| | - Zhimin Zhang
- Department of Toxicology, School of Public Health, Lanzhou University, Gansu 730000, China
| | - Xin Zhang
- Department of Toxicology, School of Public Health, Lanzhou University, Gansu 730000, China
| | - Jingjing Liu
- Department of Toxicology, School of Public Health, Lanzhou University, Gansu 730000, China
| | - Xuhong Chang
- Department of Toxicology, School of Public Health, Lanzhou University, Gansu 730000, China
| | - Hui Wang
- Department of Toxicology, School of Public Health, Lanzhou University, Gansu 730000, China.
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22
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Yang C, Wang CY, Long QY, Cao Z, Wei ML, Tang SB, Lin X, Mu ZQ, Xiao Y, Chen MK, Wu M, Li LY. The roles of nuclear orphan receptor NR2F6 in anti-viral innate immunity. PLoS Pathog 2024; 20:e1012271. [PMID: 38829910 PMCID: PMC11175508 DOI: 10.1371/journal.ppat.1012271] [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: 01/21/2024] [Revised: 06/13/2024] [Accepted: 05/17/2024] [Indexed: 06/05/2024] Open
Abstract
Proper transcription regulation by key transcription factors, such as IRF3, is critical for anti-viral defense. Dynamics of enhancer activity play important roles in many biological processes, and epigenomic analysis is used to determine the involved enhancers and transcription factors. To determine new transcription factors in anti-DNA-virus response, we have performed H3K27ac ChIP-Seq and identified three transcription factors, NR2F6, MEF2D and MAFF, in promoting HSV-1 replication. NR2F6 promotes HSV-1 replication and gene expression in vitro and in vivo, but not dependent on cGAS/STING pathway. NR2F6 binds to the promoter of MAP3K5 and activates AP-1/c-Jun pathway, which is critical for DNA virus replication. On the other hand, NR2F6 is transcriptionally repressed by c-Jun and forms a negative feedback loop. Meanwhile, cGAS/STING innate immunity signaling represses NR2F6 through STAT3. Taken together, we have identified new transcription factors and revealed the underlying mechanisms involved in the network between DNA viruses and host cells.
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Affiliation(s)
- Chen Yang
- Frontier Science Center for Immunology and Metabolism, Hubei Key Laboratory of Cell Homeostasis, Hubei Key Laboratory of Developmentally Originated Disease, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Chen-Yu Wang
- Frontier Science Center for Immunology and Metabolism, Hubei Key Laboratory of Cell Homeostasis, Hubei Key Laboratory of Developmentally Originated Disease, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Qiao-Yun Long
- Frontier Science Center for Immunology and Metabolism, Hubei Key Laboratory of Cell Homeostasis, Hubei Key Laboratory of Developmentally Originated Disease, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Zhuo Cao
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Ming-Liang Wei
- Frontier Science Center for Immunology and Metabolism, Hubei Key Laboratory of Cell Homeostasis, Hubei Key Laboratory of Developmentally Originated Disease, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Shan-Bo Tang
- Frontier Science Center for Immunology and Metabolism, Hubei Key Laboratory of Cell Homeostasis, Hubei Key Laboratory of Developmentally Originated Disease, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Xiang Lin
- Frontier Science Center for Immunology and Metabolism, Hubei Key Laboratory of Cell Homeostasis, Hubei Key Laboratory of Developmentally Originated Disease, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Zi-Qi Mu
- Frontier Science Center for Immunology and Metabolism, Hubei Key Laboratory of Cell Homeostasis, Hubei Key Laboratory of Developmentally Originated Disease, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Yong Xiao
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Ming-Kai Chen
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Min Wu
- Frontier Science Center for Immunology and Metabolism, Hubei Key Laboratory of Cell Homeostasis, Hubei Key Laboratory of Developmentally Originated Disease, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Lian-Yun Li
- Frontier Science Center for Immunology and Metabolism, Hubei Key Laboratory of Cell Homeostasis, Hubei Key Laboratory of Developmentally Originated Disease, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
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23
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Zong Y, Yang Y, Zhao J, Li L, Luo D, Hu J, Gao Y, Xie X, Shen L, Chen S, Ning L, Jiang L. Identification of key mitochondria-related genes and their relevance to the immune system linking Parkinson's disease and primary Sjögren's syndrome through integrated bioinformatics analyses. Comput Biol Med 2024; 175:108511. [PMID: 38677173 DOI: 10.1016/j.compbiomed.2024.108511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 04/14/2024] [Accepted: 04/21/2024] [Indexed: 04/29/2024]
Abstract
BACKGROUND Mitochondria are the metabolic hubs of cells, regulating energy production and antigen presentation, which are essential for activation, proliferation, and function of immune cells. Recent evidence indicates that mitochondrial antigen presentation may have an impact on diseases such as Parkinson's disease (PD) and autoimmune diseases. However, there is limited knowledge about the mechanisms that regulate the presentation of mitochondrial antigens in these diseases. METHODS In the current study, RNA sequencing was performed on labial minor salivary gland (LSG) from 25 patients with primary Sjögren's syndrome (pSS) and 14 non-pSS aged controls. Additionally, we obtained gene expression omnibus datasets associated with PD patients from NCBI Gene Expression Omnibus (GEO) databases. Single-sample Gene Set Enrichment Analysis (ssGSEA), ESTIMATE and Spearman correlations were conducted to explore the association between mitochondrial related genes and the immune system. Furthermore, we applied weighted Gene Co-expression Network Analysis (WGCNA) to identify hub mitochondria-related genes and investigate the correlated networks in both diseases. Single cell transcriptome analysis, immunohistochemical (IHC) staining and quantitative real-time PCR (qRT-PCR) were used to verify the activation of the hub mitochondria-related pathway. Pearson correlations and the CIBERSORT algorithms were employed to further reveal the correlation between hub mitochondria-related pathways and immune infiltration. RESULTS The transcriptome analysis revealed the presence of overlapping mitochondria-related genes and mitochondrial DNA damage in patients with pSS and PD. Reactive oxygen species (ROS), the senescence marker p53, and the inflammatory markers CD45 and Bcl-2 were found to be regionally distributed in LSGs of pSS patients. WGCNA analysis identified the STING pathway as the central mitochondria-related pathway closely associated with the immune system. Single cell analysis, IHC staining, and qRT-PCR confirmed the activation of the STING pathway. Subsequent, bioinformatic analysis revealed the proportion of infiltrating immune cells in the STING-high and STING-low groups of pSS and PD. Furthermore, the study demonstrated the association of the STING pathway with innate and adaptive immune cells, as well as functional cells, in the immune microenvironment of PD and pSS. CONCLUSION Our study uncovered a central pathway that connects mitochondrial dysfunction and the immune microenvironment in PD and pSS, potentially offering valuable insights into therapeutic targets for these conditions.
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Affiliation(s)
- Yuan Zong
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Yi Yang
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Jiawen Zhao
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Li
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Danyang Luo
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Jiawei Hu
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Yiming Gao
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Xianfei Xie
- Hainan Branch, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Qionghai, China; Department of Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Linhui Shen
- Department of Geriatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sheng Chen
- Department of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Ning
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.
| | - Liting Jiang
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.
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Liu X, Jiang T, Jin H, Yan C, Tong Y, Ding J, Li Y, Huang L, Zhang Z. mtDNA amplifies beryllium sulfate-induced inflammatory responses via the cGAS-STING pathway in 16HBE cells. J Appl Toxicol 2024. [PMID: 38778435 DOI: 10.1002/jat.4631] [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: 04/08/2024] [Revised: 04/26/2024] [Accepted: 05/02/2024] [Indexed: 05/25/2024]
Abstract
Beryllium sulfate (BeSO4) can cause inflammation through the mechanism, which has not been elucidated. Mitochondrial DNA (mtDNA) is a key contributor of inflammation. With mitochondrial damage, released mtDNA can bind to specific receptors (e.g., cGAS) and then activate related pathway to promote inflammatory responses. To investigate the mechanism of mtDNA in BeSO4-induced inflammatory response in 16HBE cells, we established the BeSO4-induced 16HBE cell inflammation model and the ethidium bromide (EB)-induced ρ016HBE cell model to detect the mtDNA content, oxidative stress-related markers, mitochondrial membrane potential, the expression of the cGAS-STING pathway, and inflammation-related factors. Our results showed that BeSO4 caused oxidative stress, decline of mitochondrial membrane potential, and the release of mtDNA into the cytoplasm of 16HBE cells. In addition, BeSO4 induced inflammation in 16HBE cells by activating the cGAS-STING pathway. Furthermore, mtDNA deletion inhibited the expression of cGAS-STING pathway, IL-10, TNF-α, and IFN-β. This study revealed a novel mechanism of BeSO4-induced inflammation in 16HBE cells, which contributes to the understanding of the molecular mechanism of beryllium and its compounds-induced toxicity.
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Affiliation(s)
- Xiaodong Liu
- Department of Preventive Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, China
| | - Tianyi Jiang
- Department of Preventive Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, China
| | - Huiyun Jin
- Department of Preventive Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, China
| | - Chenxi Yan
- Department of Preventive Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, China
| | - Yuqi Tong
- Department of Preventive Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, China
| | - Jiaquan Ding
- Department of Preventive Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, China
| | - Yaqi Li
- Department of Preventive Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, China
| | - Lian Huang
- Department of Preventive Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, China
| | - Zhaohui Zhang
- Department of Preventive Medicine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, Hengyang Medical School, University of South China, Hengyang, China
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25
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Zhuo SH, Wang TY, Zhao L, Su JY, Hu JJ, Zhao YF, Li YM. piSTING: A Pocket-Independent Agonist Based on Multivalency-Driven STING Oligomerization. Angew Chem Int Ed Engl 2024:e202407037. [PMID: 38767062 DOI: 10.1002/anie.202407037] [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: 04/13/2024] [Revised: 05/19/2024] [Accepted: 05/20/2024] [Indexed: 05/22/2024]
Abstract
The stimulator of interferon genes (STING) pathway is a potent therapeutic target for innate immunity. Despite the efforts to develop pocket-dependent small-molecule STING agonists that mimic the endogenous STING ligand, cyclic guanosine monophosphate-adenosine monophosphate (cGAMP), most of these agonists showed disappointing results in clinical trials owing to the limitations of the STING pocket. In this study, we developed novel pocket-independent STING-activating agonists (piSTINGs), which act through multivalency-driven oligomerization to activate STING. Additionally, a piSTING-adjuvanted vaccine elicited a significant antibody response and inhibited tumour growth in therapeutic models. Moreover, a piSTING-based vaccine combination with aPD-1 showed remarkable potential to enhance the effectiveness of immune checkpoint blockade (ICB) immunotherapy. In particular, piSTING can strengthen the impact of STING pathway in immunotherapy and accelerate the clinical translation of STING agonists.
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Affiliation(s)
- Shao-Hua Zhuo
- Department of Chemistry, Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, P. R. China
| | - Tian-Yang Wang
- Department of Chemistry, Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, P. R. China
| | - Lang Zhao
- Department of Chemistry, Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, P. R. China
| | - Jing-Yun Su
- Department of Chemistry, Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, P. R. China
| | - Jin-Jian Hu
- Department of Chemistry, Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, P. R. China
| | - Yu-Fen Zhao
- Department of Chemistry, Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, P. R. China
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, 315221, P. R. China
| | - Yan-Mei Li
- Department of Chemistry, Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, 100084, P. R. China
- Beijing Institute for Brain Disorders, Beijing, 100069, P. R. China
- Center for Synthetic and Systems Biology, Tsinghua University, Beijing, 100084, P. R. China
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26
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Uslu U, Sun L, Castelli S, Finck AV, Assenmacher CA, Young RM, Chen ZJ, June CH. The STING agonist IMSA101 enhances chimeric antigen receptor T cell function by inducing IL-18 secretion. Nat Commun 2024; 15:3933. [PMID: 38730243 PMCID: PMC11087554 DOI: 10.1038/s41467-024-47692-9] [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: 10/10/2023] [Accepted: 04/10/2024] [Indexed: 05/12/2024] Open
Abstract
As a strategy to improve the therapeutic success of chimeric antigen receptor T cells (CART) directed against solid tumors, we here test the combinatorial use of CART and IMSA101, a newly developed stimulator of interferon genes (STING) agonist. In two syngeneic tumor models, improved overall survival is observed when mice are treated with intratumorally administered IMSA101 in addition to intravenous CART infusion. Transcriptomic analyses of CART isolated from tumors show elevated T cell activation, as well as upregulated cytokine pathway signatures, in particular IL-18, in the combination treatment group. Also, higher levels of IL-18 in serum and tumor are detected with IMSA101 treatment. Consistent with this, the use of IL-18 receptor negative CART impair anti-tumor responses in mice receiving combination treatment. In summary, we find that IMSA101 enhances CART function which is facilitated through STING agonist-induced IL-18 secretion.
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Affiliation(s)
- Ugur Uslu
- Center for Cellular Immunotherapies, Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104, USA
- Parker Institute for Cancer Immunotherapy at University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Lijun Sun
- ImmuneSensor Therapeutics, Dallas, TX, 75235, USA
| | - Sofia Castelli
- Center for Cellular Immunotherapies, Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104, USA
- Parker Institute for Cancer Immunotherapy at University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Amanda V Finck
- Center for Cellular Immunotherapies, Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104, USA
- Parker Institute for Cancer Immunotherapy at University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Charles-Antoine Assenmacher
- Comparative Pathology Core, Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Regina M Young
- Center for Cellular Immunotherapies, Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104, USA
- Parker Institute for Cancer Immunotherapy at University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Zhijian J Chen
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.
- Center for Inflammation Research, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.
- Howard Hughes Medical Institute, 4000 Jones Bridge Road, Chevy Chase, MD20815, USA.
| | - Carl H June
- Center for Cellular Immunotherapies, Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104, USA.
- Parker Institute for Cancer Immunotherapy at University of Pennsylvania, Philadelphia, PA, 19104, USA.
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Zong Q, Zhang H, Liu F, Li J, Liu Q, Duan Z, Duan W, Ruan M, Zhang J, Liu Y, Zhou Q, Wang Q. Activation of the cGAS-STING pathway by viral dsDNA leading to M1 polarization of macrophages mediates antiviral activity against hepatitis B virus. Immunobiology 2024; 229:152810. [PMID: 38772101 DOI: 10.1016/j.imbio.2024.152810] [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: 02/17/2024] [Revised: 05/09/2024] [Accepted: 05/16/2024] [Indexed: 05/23/2024]
Abstract
BACKGROUND AND AIMS Activation of the cGAS-STING pathway induces the production of type I interferons, initiating the antiviral immune response, which contributes to the clearance of pathogens. Previous studies have shown that STING agonists promote hepatitis B virus (HBV) clearance; however, few studies have investigated the effect of activating the cGAS-STING pathway in macrophages on HBV. METHODS The polarization status of HBV particle-stimulated RAW264.7 macrophages was analyzed. After stimulation with HBV particles, the analysis focused on determining whether the DNA sensors in RAW264.7 macrophages recognized the viral double-stranded DNA (dsDNA) and evaluating the activation of the cGAS-STING pathway. Coculture of mouse macrophages and hepatocytes harboring HBV was used to study the antiviral activity of HBV-stimulated RAW264.7 macrophages. RESULTS After stimulation with HBV particles, HBV relaxed circular DNA (rcDNA) was detected in RAW264.7 macrophages, and the protein expression of phospho-STING, phospho-TBK1, and phospho-IRF3 in the STING pathway was increased, as shown by Western blot analysis, which revealed that M1 polarization of macrophages was caused by increased expression of CD86. RT-PCR analyses revealed elevated expression of M1 macrophage polarization-associated cytokines such as TNFα, IL-1β, iNOS, and IFNα/β. In the coculture experiment, both HBsAg and HBeAg expression levels were significantly decreased in AML12-HBV1.3 cells cocultured with the supernatants of HBV-stimulated RAW264.7 macrophages. CONCLUSION The results suggest that macrophages can endocytose HBV particles. Additionally, viral dsDNA can be recognized by DNA pattern recognition receptors, which in turn activate the cGAS-STING pathway, promoting the M1 polarization of macrophages, while no significant M2 polarization is observed. Macrophages stimulated with HBV particles exhibit enhanced antiviral activity against HBV.
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Affiliation(s)
- Qiyin Zong
- Department of Clinical Laboratory, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Hao Zhang
- Department of Clinical Laboratory, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Futing Liu
- Department of Clinical Laboratory, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jianfei Li
- Department of Clinical Laboratory, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Qian Liu
- Department of Clinical Laboratory, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Zhi Duan
- Department of Clinical Laboratory, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wanlu Duan
- Department of Clinical Laboratory, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Mengqi Ruan
- Department of Clinical Laboratory, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jingjing Zhang
- Department of Geriatric Cardiology, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yan Liu
- Department of Microbiology, School of Basic Medical, Anhui Medical University, Hefei, China
| | - Qiang Zhou
- Department of Clinical Laboratory, the Second Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - Qin Wang
- Department of Clinical Laboratory, the Second Affiliated Hospital of Anhui Medical University, Hefei, China.
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Xie F, Zhu Q. The regulation of cGAS-STING signaling by RNA virus-derived components. Virol J 2024; 21:101. [PMID: 38693578 PMCID: PMC11064393 DOI: 10.1186/s12985-024-02359-1] [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: 02/04/2024] [Accepted: 04/04/2024] [Indexed: 05/03/2024] Open
Abstract
The Cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) serves as a key innate immune signaling axis involved in the regulation of various human diseases. It has been found that cGAS-STING pathway can recognize a variety of cytosolic double-stranded DNA (dsDNA), contributing to cause a robust type I interferon response thereby affecting the occurrence and progression of viral infection. Accumulating evidence indicates RNA virus-derived components play an important role in regulating cGAS-STING signaling, either as protective or pathogenic factors in the pathogenesis of diseases. Thus, a comprehensive understanding of the function of RNA virus-derived components in regulating cGAS-STING signaling will provide insights into developing novel therapies. Here, we review the existing literature on cGAS-STING pathway regulated by RNA virus-derived components to propose insights into pharmacologic strategies targeting the cGAS-STING pathway.
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Affiliation(s)
- Feiting Xie
- Zhejiang Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, 310006, Hangzhou, China.
| | - Qiugang Zhu
- Department of Laboratory Medicine, Shangyu People's Hospital of Shaoxing, Shaoxing, China
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Xin GF, Chen NN, Li LL, Liu XC, Che CC, Wu BD, You QD, Xu XL. An updated patent review of stimulator of interferon genes agonists (2021 - present). Expert Opin Ther Pat 2024; 34:297-313. [PMID: 38849323 DOI: 10.1080/13543776.2024.2365409] [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: 11/16/2023] [Accepted: 05/17/2024] [Indexed: 06/09/2024]
Abstract
INTRODUCTION Stimulator of Interferon Genes (STING) is an innate immune sensor. Activation of STING triggers a downstream response that results in the expression of proinflammatory cytokines (TNF-α, IL-1β) via nuclear factor kappa-B (NF-κB) or the expression of type I interferons (IFNs) via an interferon regulatory factor 3 (IRF3). IFNs can eventually result in promotion of the adaptive immune response including activation of tumor-specific CD8+ T cells to abolish the tumor. Consequently, activation of STING has been considered as a potential strategy for cancer treatment. AREAS COVERED This article provides an overview on structures and pharmacological data of CDN-like and non-nucleotide STING agonists acting as anticancer agents (January 2021 to October 2023) from a medicinal chemistry perspective. The data in this review come from EPO, WIPO, RCSB PDB, CDDI. EXPERT OPINION In recent years, several structurally diverse STING agonists have been identified. As an immune enhancer, they are used in the treatment of tumors, which has received extensive attention from scientific community and pharmaceutical companies. Despite the multiple challenges that have appeared, STING agonists may offer opportunities for immunotherapy.
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Affiliation(s)
- Guo-Feng Xin
- State Key Laboratory of Natural Medicines, and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Nan-Nan Chen
- State Key Laboratory of Natural Medicines, and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Lin-Lin Li
- State Key Laboratory of Natural Medicines, and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xue-Chun Liu
- State Key Laboratory of Natural Medicines, and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Chun-Chen Che
- State Key Laboratory of Natural Medicines, and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Bei-Duo Wu
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Qi-Dong You
- State Key Laboratory of Natural Medicines, and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiao-Li Xu
- State Key Laboratory of Natural Medicines, and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, China
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, China
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Mizuguchi M, Kyan N, Nishimata S, Nabeshima Y, Obita T. Enzymatic activity of cGAS in the presence of three types of DNAs: limited cGAS stimulation by single-stranded HIV-1 SL2 DNA. Biosci Rep 2024; 44:BSR20240269. [PMID: 38530250 PMCID: PMC10994814 DOI: 10.1042/bsr20240269] [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: 02/28/2024] [Revised: 03/04/2024] [Accepted: 03/25/2024] [Indexed: 03/27/2024] Open
Abstract
Cyclic GMP-AMP (cGAMP) synthase (cGAS) is activated by binding to DNA. Activated cGAS produces 2'3'-cGAMP, which subsequently binds to the adaptor protein STING (stimulator of interferon genes). This interaction triggers the cGAS/STING signaling pathway, leading to the production of type I interferons. Three types of DNA, namely double-stranded DNA longer than 40 base pairs, a 70-nucleotide single-stranded HIV-1 DNA known as SL2, and Y-form DNA with unpaired guanosine trimers (G3 Y-form DNA), induce interferon production by activating cGAS/STING signaling. However, the extent of cGAS activation by each specific DNA type remains unclear. The comparison of cGAS stimulation by various DNAs is crucial for understanding the mechanisms underlying cGAS-mediated type I interferon production in the innate immune response. Here, we revealed that cGAS produces 2'3'-cGAMP at a significantly lower rate in the presence of single-stranded SL2 DNA than in the presence of double-stranded DNA or G3 Y-form DNA. Furthermore, the guanine-to-cytosine mutations and the deletion of unpaired guanosine trimers significantly reduced the 2'3'-cGAMP production rate and the binding of cGAS to Y-form DNA. These studies will provide new insights into the cGAS-mediated DNA-sensing in immune response.
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Affiliation(s)
- Mineyuki Mizuguchi
- Faculty of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Niko Kyan
- Faculty of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Suzuka Nishimata
- Faculty of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Yuko Nabeshima
- Faculty of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Takayuki Obita
- Faculty of Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
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Pastora LE, Namburu NS, Arora K, Christov PP, Wilson JT. STING-Pathway Inhibiting Nanoparticles (SPINs) as a Platform for Treatment of Inflammatory Diseases. ACS APPLIED BIO MATERIALS 2024. [PMID: 38563162 DOI: 10.1021/acsabm.3c01305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Aberrant activation of the cyclic GMP-AMP synthase (cGAS)/Stimulator of Interferon Genes (STING) pathway has been implicated in the development and progression of a myriad of inflammatory diseases including colitis, nonalcoholic steatohepatitis, amyotrophic lateral sclerosis (ALS), and age-related macular degeneration. Thus, STING pathway inhibitors could have therapeutic application in many of these inflammatory conditions. The cGAS inhibitor RU.521 and the STING inhibitor H-151 have shown promise as therapeutics in mouse models of colitis, ALS, and more. However, these agents require frequent high-dose intraperitoneal injections, which may limit translatability. Furthermore, long-term use of systemically administered cGAS/STING inhibitors may leave patients vulnerable to viral infections and cancer. Thus, localized or targeted inhibition of the cGAS/STING pathway may be an attractive, broadly applicable treatment for a variety of STING pathway-driven ailments. Here we describe STING-Pathway Inhibiting Nanoparticles (SPINS)-poly(lactic-co-glycolic acid) (PLGA) nanoparticles loaded with RU.521 and H-151-as a platform for enhanced and sustained inhibition of cGAS/STING signaling. We demonstrate that SPINs are equally or more effective at inhibiting type-I interferon responses induced by cytosolic DNA than free H-151 or RU.521. Additionally, we describe a SPIN formulation in which PLGA is coemulsified with poly(benzoyloxypropyl methacrylamide) (P(HPMA-Bz)), which significantly improves drug loading and allows for tunable release of H-151 over a period of days to over a week by varying P(HPMA-Bz) content. Finally, we find that all SPIN formulations were as potent or more potent in inhibiting cGAS/STING signaling in primary murine macrophages, resulting in decreased expression of inflammatory M1-like macrophage markers. Therefore, our study provides an in vitro proof-of-concept for nanoparticle delivery of STING pathway inhibitors and positions SPINs as a potential platform for slowing or reversing the onset or progression of cGAS/STING-driven inflammatory conditions.
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Affiliation(s)
- Lucinda E Pastora
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37212, United States
| | - Neeraj S Namburu
- School for Science and Math at Vanderbilt, Vanderbilt University, Nashville, Tennessee 37212, United States
| | - Karan Arora
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37212, United States
| | - Plamen P Christov
- Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37212, United States
| | - John T Wilson
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37212, United States
- Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37212, United States
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37212, United States
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
- Vanderbilt Institute of Nanoscale Science and Engineering, Vanderbilt University, Nashville, Tennessee 37212, United States
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University, Nashville, Tennessee 37212, United States
- Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville Tennessee 37232, United States
- Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
- Vanderbilt Digestive Diseases Research Center, Vanderbilt University Medical Center, Nashville Tennessee 37232, United States
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Hailati J, Liu ZQ, Zhang YF, Zhang L, Midilibieke H, Ma XL, Wulasihan M. Increased Cyclic Guanosine Monophosphate and Interleukin-1Beta Is Activated by Mitochondrial Dysfunction and Associated With Heart Failure in Atrial Fibrillation Patients. Cardiol Res 2024; 15:108-116. [PMID: 38645829 PMCID: PMC11027785 DOI: 10.14740/cr1613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 02/16/2024] [Indexed: 04/23/2024] Open
Abstract
Background This study aimed to identify the association of cyclic guanosine monophosphate (GMP)-adenosine monophosphate (AMP) synthase-stimulator interferon genes (cGAS-STING) pathway with heart failure (HF) in atrial fibrillation (AF) patients. Methods We prospectively enrolled 106 AF patients without evidence of HF. The serum levels of 2'3'-cyclic GMP-AMP (2'3'-cGAMP) and interleukin (IL)-1β were measured by enzyme-linked immunoassay (ELISA). To determine the underlying mechanism, we supplemented the complex I inhibitor rotenone and the specific cGAS inhibitor RU.521 in neonatal rat ventricular cardiomyocytes. Results During 18-month follow-up, serum concentrations of 2'3'-cGAMP (baseline 51.82 ± 11.34 pg/mL vs. follow-up 124.50 ± 75.83 pg/mL, Ppaired t < 0.01) and IL-1β (baseline 436.07 ± 165.82 vs. follow-up 632.48 ± 119.25 ng/mL, Ppaired t < 0.01) were substantially upregulated in AF patients with HF as compared with those without HF. Furthermore, serum 2'3'-cGAMP and IL-1β levels at 18-month follow-up were independently associated with the occurrence of HF in AF patients. Inhibition of cGAS by RU.521 effectively reversed the upregulation of 2'3'-cGAMP and STING phosphorylation induced by mitochondrial dysfunction, accompanied with inhibition of nod-like receptor protein 3 (NLRP3) inflammasome, IL-1β and IL-18 secretion. Conclusions Induction of mitochondrial dysfunction causes an upregulation of 2'3'-cGAMP and activation of NLRP3 inflammasome through cGAS-STING pathway in cardiomyocytes.
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Affiliation(s)
- Juledezi Hailati
- Cardiovascular Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinshi District, Urumqi, Xinjiang, China
| | - Zhi Qiang Liu
- Cardiovascular Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinshi District, Urumqi, Xinjiang, China
| | - Yun Fei Zhang
- Cardiovascular Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinshi District, Urumqi, Xinjiang, China
| | - Lei Zhang
- Cardiovascular Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinshi District, Urumqi, Xinjiang, China
| | - Hasidaer Midilibieke
- Cardiovascular Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinshi District, Urumqi, Xinjiang, China
| | - Xiang Li Ma
- Cardiovascular Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinshi District, Urumqi, Xinjiang, China
| | - Muhuyati Wulasihan
- Cardiovascular Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinshi District, Urumqi, Xinjiang, China
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Haycock J, Maehr T, Dastjerdi A, Steinbach F. Immunostimulation of Asian elephant ( Elephas maximus) blood cells by parapoxvirus ovis and CpG motif-containing bacterial plasmid DNA upregulates innate immune gene expression. Front Immunol 2024; 15:1329820. [PMID: 38590526 PMCID: PMC10999609 DOI: 10.3389/fimmu.2024.1329820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 03/11/2024] [Indexed: 04/10/2024] Open
Abstract
The immune system of Asian elephants (Elephas maximus) is poorly studied, compared to that of livestock, rodents or humans. The innate immune response has become a focus of interest in relation to Elephant endotheliotropic herpesviruses (EEHVs). EEHVs cause a fatal hemorrhagic disease (EEHV-HD) and are a significant threat to captive Asian elephant populations worldwide. Similar to other herpesvirus infections, nearly all animals become infected, but only some develop disease. As progression to EEHV-HD is often acute, a robust innate immune response is crucial to control EEHV infections. This is invariably true of the host in the first instance, but it can also potentially be modulated by intervention strategies. Here, two immunostimulant veterinary medicinal products, authorized for use in domestic species, were tested for their ability to induce innate anti-viral immune responses in Asian elephant blood cells. Sequence data were obtained for a range of previously unidentified Asian elephant immune genes, including C-X-C motif chemokine ligand 10 (CXCL10), interferon stimulated gene 15 (ISG15) and myxovirus GTPase 1 (Mx1), and were employed in the design of species-specific qPCR assays. These assays were subsequently used in analyses to determine fold changes in gene expression over a period of 24 hours. This study demonstrates that both immunostimulant medications are capable of inducing significant innate anti-viral immune responses which suggests that both could be beneficial in controlling EEHV infections in Asian elephants.
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Affiliation(s)
- Jonathan Haycock
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
- Department of Virology, Animal and Plant Health Agency, Addlestone, United Kingdom
| | - Tanja Maehr
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Akbar Dastjerdi
- Department of Virology, Animal and Plant Health Agency, Addlestone, United Kingdom
| | - Falko Steinbach
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
- Department of Virology, Animal and Plant Health Agency, Addlestone, United Kingdom
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Somatilaka BN, Madana L, Sadek A, Chen Z, Chandrasekaran S, McKay RM, Le LQ. STING activation reprograms the microenvironment to sensitize NF1-related malignant peripheral nerve sheath tumors for immunotherapy. J Clin Invest 2024; 134:e176748. [PMID: 38502231 PMCID: PMC11093615 DOI: 10.1172/jci176748] [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: 10/18/2023] [Accepted: 03/12/2024] [Indexed: 03/21/2024] Open
Abstract
Neurofibromatosis type 1 (NF1) is caused by mutations in the NF1 gene that encodes neurofibromin, a RAS GTPase-activating protein. Inactivating NF1 mutations cause hyperactivation of RAS-mediated signaling, resulting in the development of multiple neoplasms, including malignant peripheral nerve sheath tumors (MPNSTs). MPNSTs are an aggressive tumor and the main cause of mortality in patients with NF1. MPNSTs are difficult to resect and refractory to chemo- and radiotherapy, and no molecular therapies currently exist. Immune checkpoint blockade (ICB) is an approach to treat inoperable, undruggable cancers like MPNST, but successful outcomes require an immune cell-rich tumor microenvironment. While MPNSTs are noninflamed "cold" tumors, here, we converted MPNSTs into T cell-inflamed "hot" tumors by activating stimulator of IFN genes (STING) signaling. Mouse genetic and human xenograft MPNST models treated with a STING agonist plus ICB exhibited growth delay via increased apoptotic cell death. This strategy offers a potential treatment regimen for MPNSTs.
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Affiliation(s)
| | | | | | | | - Sanjay Chandrasekaran
- Simmons Comprehensive Cancer Center
- Department of Internal Medicine, Division of Hematology/Oncology
| | | | - Lu Q. Le
- Department of Dermatology
- Simmons Comprehensive Cancer Center
- University of Texas Southwestern Comprehensive Neurofibromatosis Clinic
- Hamon Center for Regenerative Science and Medicine, and
- O’Donnell Brain Institute, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, USA
- Department of Dermatology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
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Zhou S, Su T, Cheng F, Cole J, Liu X, Zhang B, Alam S, Liu J, Zhu G. Engineering cGAS-agonistic oligonucleotides as therapeutics for cancer immunotherapy. MOLECULAR THERAPY. NUCLEIC ACIDS 2024; 35:102126. [PMID: 38352859 PMCID: PMC10863322 DOI: 10.1016/j.omtn.2024.102126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 01/18/2024] [Indexed: 02/16/2024]
Abstract
Activating cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) holds great potential for cancer immunotherapy by eliciting type-I interferon (IFN-I) responses. Yet, current approaches to cGAS-STING activation rely on STING agonists, which suffer from difficult formulation, poor pharmacokinetics, and marginal clinical therapeutic efficacy. Here, we report nature-inspired oligonucleotide, Svg3, as a cGAS agonist for cGAS-STING activation in tumor combination immunotherapy. The hairpin-shaped Svg3 strongly binds to cGAS and enhances phase separation to form Svg3-cGAS liquid-like droplets. This results in cGAS-specific immunoactivation and robust IFN-I responses. Remarkably, Svg3 outperforms several state-of-the-art STING agonists in murine and human cells/tissues. Nanoparticle-delivered Svg3 reduces tumor immunosuppression and potentiates immune checkpoint blockade therapeutic efficacy of multiple syngeneic tumor models in wild-type mice, but in neither cGas-/- nor Sting-/- mice. Overall, these results demonstrate the great potential of Svg3 as a cGAS agonistic oligonucleotide for cancer combination immunotherapy.
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Affiliation(s)
- Shurong Zhou
- Department of Pharmaceutical Sciences, College of Pharmacy, Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Pharmaceutics and Center for Pharmaceutical Engineering and Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Ting Su
- Department of Pharmaceutics and Center for Pharmaceutical Engineering and Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Furong Cheng
- Department of Pharmaceutics and Center for Pharmaceutical Engineering and Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Janet Cole
- Department of Pharmaceutics and Center for Pharmaceutical Engineering and Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Xiang Liu
- Department of Pharmaceutical Sciences, College of Pharmacy, Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Pharmaceutics and Center for Pharmaceutical Engineering and Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Bei Zhang
- Department of Biostatistics, School of Medicine, Bioinformatics Shared Resource, Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Shaheer Alam
- Department of Pharmaceutics and Center for Pharmaceutical Engineering and Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Jinze Liu
- Department of Biostatistics, School of Medicine, Bioinformatics Shared Resource, Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Guizhi Zhu
- Department of Pharmaceutical Sciences, College of Pharmacy, Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, The Developmental Therapeutics Program, Rogel Cancer Center, Center for RNA Biomedicine, MI-AORTA Program, Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI 48109, USA
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Bartman S, Coppotelli G, Ross JM. Mitochondrial Dysfunction: A Key Player in Brain Aging and Diseases. Curr Issues Mol Biol 2024; 46:1987-2026. [PMID: 38534746 DOI: 10.3390/cimb46030130] [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: 02/14/2024] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/28/2024] Open
Abstract
Mitochondria are thought to have become incorporated within the eukaryotic cell approximately 2 billion years ago and play a role in a variety of cellular processes, such as energy production, calcium buffering and homeostasis, steroid synthesis, cell growth, and apoptosis, as well as inflammation and ROS production. Considering that mitochondria are involved in a multitude of cellular processes, mitochondrial dysfunction has been shown to play a role within several age-related diseases, including cancers, diabetes (type 2), and neurodegenerative diseases, although the underlying mechanisms are not entirely understood. The significant increase in lifespan and increased incidence of age-related diseases over recent decades has confirmed the necessity to understand the mechanisms by which mitochondrial dysfunction impacts the process of aging and age-related diseases. In this review, we will offer a brief overview of mitochondria, along with structure and function of this important organelle. We will then discuss the cause and consequence of mitochondrial dysfunction in the aging process, with a particular focus on its role in inflammation, cognitive decline, and neurodegenerative diseases, such as Huntington's disease, Parkinson's disease, and Alzheimer's disease. We will offer insight into therapies and interventions currently used to preserve or restore mitochondrial functioning during aging and neurodegeneration.
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Affiliation(s)
- Sydney Bartman
- George and Anne Ryan Institute for Neuroscience, University of Rhode Island, Kingston, RI 02881, USA
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Giuseppe Coppotelli
- George and Anne Ryan Institute for Neuroscience, University of Rhode Island, Kingston, RI 02881, USA
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Jaime M Ross
- George and Anne Ryan Institute for Neuroscience, University of Rhode Island, Kingston, RI 02881, USA
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
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Lin X, Li X, Li C, Wang H, Zou L, Pan J, Zhang X, He L, Rong X, Peng Y. Activation of STING signaling aggravates chronic alcohol exposure-induced cognitive impairment by increasing neuroinflammation and mitochondrial apoptosis. CNS Neurosci Ther 2024; 30:e14689. [PMID: 38516831 PMCID: PMC10958405 DOI: 10.1111/cns.14689] [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: 11/21/2023] [Revised: 02/18/2024] [Accepted: 03/11/2024] [Indexed: 03/23/2024] Open
Abstract
AIMS Chronic alcohol exposure leads to persistent neurological disorders, which are mainly attributed to neuroinflammation and apoptosis. Stimulator of IFN genes (STING) is essential in the cytosolic DNA sensing pathway and is involved in inflammation and cellular death processes. This study was to examine the expression pattern and biological functions of STING signaling in alcohol use disorder (AUD). METHODS Cell-free DNA was extracted from human and mouse plasma. C57BL/6J mice were given alcohol by gavage for 28 days, and behavior tests were used to determine their mood and cognition. Cultured cells were treated with ethanol for 24 hours. The STING agonist DMXAA, STING inhibitor C-176, and STING-siRNA were used to intervene the STING. qPCR, western blot, and immunofluorescence staining were used to assess STING signaling, inflammation, and apoptosis. RESULTS Circulating cell-free mitochondrial DNA (mtDNA) was increased in individuals with AUD and mice chronically exposed to alcohol. Upregulation of STING signaling under alcohol exposure led to inflammatory responses in BV2 cells and mitochondrial apoptosis in PC12 cells. DMXAA exacerbated alcohol-induced cognitive impairment and increased the activation of microglia, neuroinflammation, and apoptosis in the medial prefrontal cortex (mPFC), while C-176 exerted neuroprotection. CONCLUSION Activation of STING signaling played an essential role in alcohol-induced inflammation and mitochondrial apoptosis in the mPFC. This study identifies STING as a promising therapeutic target for AUD.
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Affiliation(s)
- Xinrou Lin
- Department of Neurology, Sun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
- Nanhai Translational Innovation Center of Precision ImmunologySun Yat‐Sen Memorial HospitalFoshanChina
| | - Xiangpen Li
- Department of Neurology, Sun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
- Shenshan Medical Center, Sun Yat‐sen Memorial HospitalSun Yat‐sen UniversityShanweiChina
| | - Chenguang Li
- Department of Neurology, Sun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Hongxuan Wang
- Department of Neurology, Sun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Lubin Zou
- Department of Neurology, Sun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
- Nanhai Translational Innovation Center of Precision ImmunologySun Yat‐Sen Memorial HospitalFoshanChina
| | - Jingrui Pan
- Department of Neurology, Sun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
- Shenshan Medical Center, Sun Yat‐sen Memorial HospitalSun Yat‐sen UniversityShanweiChina
| | - Xiaoni Zhang
- Department of Neurology, Sun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Lei He
- Department of Neurology, Sun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Xiaoming Rong
- Department of Neurology, Sun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Ying Peng
- Department of Neurology, Sun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
- Nanhai Translational Innovation Center of Precision ImmunologySun Yat‐Sen Memorial HospitalFoshanChina
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat‐Sen Memorial HospitalSun Yat‐Sen UniversityGuangzhouChina
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Wu Q, Leng X, Zhang Q, Zhu YZ, Zhou R, Liu Y, Mei C, Zhang D, Liu S, Chen S, Wang X, Lin A, Lin X, Liang T, Shen L, Feng XH, Xia B, Xu P. IRF3 activates RB to authorize cGAS-STING-induced senescence and mitigate liver fibrosis. SCIENCE ADVANCES 2024; 10:eadj2102. [PMID: 38416816 PMCID: PMC10901380 DOI: 10.1126/sciadv.adj2102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 01/23/2024] [Indexed: 03/01/2024]
Abstract
Cytosolic double-stranded DNA surveillance by cyclic GMP-AMP synthase (cGAS)-Stimulator of Interferon Genes (STING) signaling triggers cellular senescence, autophagy, biased mRNA translation, and interferon-mediated immune responses. However, detailed mechanisms and physiological relevance of STING-induced senescence are not fully understood. Here, we unexpectedly found that interferon regulatory factor 3 (IRF3), activated during innate DNA sensing, forms substantial endogenous complexes in the nucleus with retinoblastoma (RB), a key cell cycle regulator. The IRF3-RB interaction attenuates cyclin-dependent kinase 4/6 (CDK4/6)-mediated RB hyperphosphorylation that mobilizes RB to deactivate E2 family (E2F) transcription factors, thereby driving cells into senescence. STING-IRF3-RB signaling plays a notable role in hepatic stellate cells (HSCs) within various murine models, pushing activated HSCs toward senescence. Accordingly, IRF3 global knockout or conditional deletion in HSCs aggravated liver fibrosis, a process mitigated by the CDK4/6 inhibitor. These findings underscore a straightforward yet vital mechanism of cGAS-STING signaling in inducing cellular senescence and unveil its unexpected biology in limiting liver fibrosis.
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Affiliation(s)
- Qirou Wu
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Xiaohong Leng
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Qian Zhang
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
- Department of Hepatobiliary and Pancreatic Surgery and Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, University School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Ye-Zhang Zhu
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Ruyuan Zhou
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
- Department of Hepatobiliary and Pancreatic Surgery and Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, University School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Yutong Liu
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Chen Mei
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Dan Zhang
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Shengduo Liu
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
- Department of Hepatobiliary and Pancreatic Surgery and Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, University School of Medicine, Zhejiang University, Hangzhou 310058, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 310058, China
| | - Shasha Chen
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Xiaojian Wang
- Institute of Immunology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Aifu Lin
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xia Lin
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Tingbo Liang
- Department of Hepatobiliary and Pancreatic Surgery and Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, University School of Medicine, Zhejiang University, Hangzhou 310058, China
- Cancer Center, Zhejiang University, Hangzhou 310058, China
| | - Li Shen
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Xin-Hua Feng
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
- Department of Thoracic Cancer, Affiliated Hangzhou Cancer Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Bing Xia
- Cancer Center, Zhejiang University, Hangzhou 310058, China
| | - Pinglong Xu
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
- Department of Hepatobiliary and Pancreatic Surgery and Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, University School of Medicine, Zhejiang University, Hangzhou 310058, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 310058, China
- Department of Thoracic Cancer, Affiliated Hangzhou Cancer Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
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Yamano K, Sawada M, Kikuchi R, Nagataki K, Kojima W, Endo R, Kinefuchi H, Sugihara A, Fujino T, Watanabe A, Tanaka K, Hayashi G, Murakami H, Matsuda N. Optineurin provides a mitophagy contact site for TBK1 activation. EMBO J 2024; 43:754-779. [PMID: 38287189 PMCID: PMC10907724 DOI: 10.1038/s44318-024-00036-1] [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: 11/09/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/31/2024] Open
Abstract
Tank-binding kinase 1 (TBK1) is a Ser/Thr kinase that is involved in many intracellular processes, such as innate immunity, cell cycle, and apoptosis. TBK1 is also important for phosphorylating the autophagy adaptors that mediate the selective autophagic removal of damaged mitochondria. However, the mechanism by which PINK1-Parkin-mediated mitophagy activates TBK1 remains largely unknown. Here, we show that the autophagy adaptor optineurin (OPTN) provides a unique platform for TBK1 activation. Both the OPTN-ubiquitin and the OPTN-pre-autophagosomal structure (PAS) interaction axes facilitate assembly of the OPTN-TBK1 complex at a contact sites between damaged mitochondria and the autophagosome formation sites. At this assembly point, a positive feedback loop for TBK1 activation is initiated that accelerates hetero-autophosphorylation of the protein. Expression of monobodies engineered here to bind OPTN impaired OPTN accumulation at contact sites, as well as the subsequent activation of TBK1, thereby inhibiting mitochondrial degradation. Taken together, these data show that a positive and reciprocal relationship between OPTN and TBK1 initiates autophagosome biogenesis on damaged mitochondria.
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Affiliation(s)
- Koji Yamano
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
- Ubiquitin Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan.
| | - Momoha Sawada
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Reika Kikuchi
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
- Ubiquitin Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan
| | - Kafu Nagataki
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Waka Kojima
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
- Ubiquitin Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan
| | - Ryu Endo
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Hiroki Kinefuchi
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Atsushi Sugihara
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Tomoshige Fujino
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Aiko Watanabe
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Keiji Tanaka
- Protein Metabolism Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan
| | - Gosuke Hayashi
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Hiroshi Murakami
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Noriyuki Matsuda
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
- Ubiquitin Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan
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40
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Li Y, Shen Z, Zhang M, Yang XY, Cleary SP, Xie J, Marathe IA, Kostelic M, Greenwald J, Rish AD, Wysocki VH, Chen C, Chen Q, Fu TM, Yu Y. PtuA and PtuB assemble into an inflammasome-like oligomer for anti-phage defense. Nat Struct Mol Biol 2024; 31:413-423. [PMID: 38177683 DOI: 10.1038/s41594-023-01172-8] [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: 02/22/2023] [Accepted: 11/03/2023] [Indexed: 01/06/2024]
Abstract
Escherichia coli Septu system, an anti-phage defense system, comprises two components: PtuA and PtuB. PtuA contains an ATPase domain, while PtuB is predicted to function as a nuclease. Here we show that PtuA and PtuB form a stable complex with a 6:2 stoichiometry. Cryo-electron microscopy structure of PtuAB reveals a distinctive horseshoe-like configuration. PtuA adopts a hexameric arrangement, organized as an asymmetric trimer of dimers, contrasting the ring-like structure by other ATPases. Notably, the three pairs of PtuA dimers assume distinct conformations and fulfill unique roles in recruiting PtuB. Our functional assays have further illuminated the importance of the oligomeric assembly of PtuAB in anti-phage defense. Moreover, we have uncovered that ATP molecules can directly bind to PtuA and inhibit the activities of PtuAB. Together, the assembly and function of the Septu system shed light on understanding other ATPase-containing systems in bacterial immunity.
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Affiliation(s)
- Yuanyuan Li
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, P. R. China
| | - Zhangfei Shen
- Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Mengyuan Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, P. R. China
| | - Xiao-Yuan Yang
- Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
- The Ohio State Biochemistry Program, The Ohio State University, Columbus, OH, USA
| | - Sean P Cleary
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Jiale Xie
- Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
- The Ohio State Biochemistry Program, The Ohio State University, Columbus, OH, USA
| | - Ila A Marathe
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Marius Kostelic
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Jacelyn Greenwald
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Anthony D Rish
- Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
- The Ohio State Biochemistry Program, The Ohio State University, Columbus, OH, USA
| | - Vicki H Wysocki
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Chong Chen
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, P. R. China
| | - Qiang Chen
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, P. R. China.
| | - Tian-Min Fu
- Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, USA.
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA.
- The Ohio State Biochemistry Program, The Ohio State University, Columbus, OH, USA.
| | - Yamei Yu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, P. R. China.
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Jiao H, James SJ, Png CW, Cui C, Li H, Li L, Chia WN, Min N, Li W, Claser C, Rénia L, Wang H, Chen MIC, Chu JJH, Tan KSW, Deng Y, Zhang Y. DUSP4 modulates RIG-I- and STING-mediated IRF3-type I IFN response. Cell Death Differ 2024; 31:280-291. [PMID: 38383887 PMCID: PMC10923883 DOI: 10.1038/s41418-024-01269-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/23/2024] Open
Abstract
Detection of cytosolic nucleic acids by pattern recognition receptors, including STING and RIG-I, leads to the activation of multiple signalling pathways that culminate in the production of type I interferons (IFNs) which are vital for host survival during virus infection. In addition to protective immune modulatory functions, type I IFNs are also associated with autoimmune diseases. Hence, it is important to elucidate the mechanisms that govern their expression. In this study, we identified a critical regulatory function of the DUSP4 phosphatase in innate immune signalling. We found that DUSP4 regulates the activation of TBK1 and ERK1/2 in a signalling complex containing DUSP4, TBK1, ERK1/2 and IRF3 to regulate the production of type I IFNs. Mice deficient in DUSP4 were more resistant to infections by both RNA and DNA viruses but more susceptible to malaria parasites. Therefore, our study establishes DUSP4 as a regulator of nucleic acid sensor signalling and sheds light on an important facet of the type I IFN regulatory system.
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Affiliation(s)
- Huipeng Jiao
- Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore
| | - Sharmy J James
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore
| | - Chin Wen Png
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore
| | - Chaoyu Cui
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518100, China
| | - Heng Li
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore
| | - Liang Li
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Wan Ni Chia
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Nyo Min
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Weiyun Li
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Innovation Center for Cell Signaling Network, Shanghai, 200031, China
| | - Carla Claser
- Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), Singapore, 138668, Singapore
| | - Laurent Rénia
- Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), Singapore, 138668, Singapore
| | - Hongyan Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Innovation Center for Cell Signaling Network, Shanghai, 200031, China
| | - Mark I-Cheng Chen
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, 117597, Singapore
| | - Justin Jang Hann Chu
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Kevin Shyong Wei Tan
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Yinyue Deng
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, 518100, China.
| | - Yongliang Zhang
- Department of Microbiology and Immunology, TRP Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117597, Singapore.
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Khoo A, Boyer M, Jafri Z, Makeham T, Pham T, Khachigian LM, Floros P, Dowling E, Fedder K, Shonka D, Garneau J, O'Meara CH. Human Papilloma Virus Positive Oropharyngeal Squamous Cell Carcinoma and the Immune System: Pathogenesis, Immunotherapy and Future Perspectives. Int J Mol Sci 2024; 25:2798. [PMID: 38474047 DOI: 10.3390/ijms25052798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 03/14/2024] Open
Abstract
Oropharyngeal squamous cell carcinoma (OPSCC), a subset of head and neck squamous cell carcinoma (HNSCC), involves the palatine tonsils, soft palate, base of tongue, and uvula, with the ability to spread to adjacent subsites. Personalized treatment strategies for Human Papillomavirus-associated squamous cell carcinoma of the oropharynx (HPV+OPSCC) are yet to be established. In this article, we summarise our current understanding of the pathogenesis of HPV+OPSCC, the intrinsic role of the immune system, current ICI clinical trials, and the potential role of small molecule immunotherapy in HPV+OPSCC.
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Affiliation(s)
- A Khoo
- Department of Otolaryngology, Head & Neck Surgery, Canberra Health Services, Canberra, ACT 2601, Australia
| | - M Boyer
- Chris O'Brien Lifehouse, Camperdown, NSW 2050, Australia
| | - Z Jafri
- Vascular Biology and Translational Research, Department of Pathology, School of Biomedical Sciences, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW 2052, Australia
| | - T Makeham
- Department of Otolaryngology, Head & Neck Surgery, Canberra Health Services, Canberra, ACT 2601, Australia
- ANU School of Medicine & Psychology, Australian National University, Canberra, ACT 0200, Australia
| | - T Pham
- Department of Otolaryngology, Head & Neck Surgery, Canberra Health Services, Canberra, ACT 2601, Australia
- ANU School of Medicine & Psychology, Australian National University, Canberra, ACT 0200, Australia
| | - L M Khachigian
- Vascular Biology and Translational Research, Department of Pathology, School of Biomedical Sciences, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW 2052, Australia
| | - P Floros
- St Vincent's Hospital, 390 Victoria Street, Sydney, NSW 2010, Australia
| | - E Dowling
- Department of Otolaryngology, Head & Neck Surgery, University of Virginia School of Medicine, Charlottesville, VA 22903, USA
| | - K Fedder
- Department of Otolaryngology, Head & Neck Surgery, University of Virginia School of Medicine, Charlottesville, VA 22903, USA
| | - D Shonka
- Department of Otolaryngology, Head & Neck Surgery, University of Virginia School of Medicine, Charlottesville, VA 22903, USA
| | - J Garneau
- Department of Otolaryngology, Head & Neck Surgery, University of Virginia School of Medicine, Charlottesville, VA 22903, USA
| | - C H O'Meara
- Department of Otolaryngology, Head & Neck Surgery, Canberra Health Services, Canberra, ACT 2601, Australia
- ANU School of Medicine & Psychology, Australian National University, Canberra, ACT 0200, Australia
- Department of Otolaryngology, Head & Neck Surgery, University of Virginia School of Medicine, Charlottesville, VA 22903, USA
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Korhonen E. Inflammasome activation in response to aberrations of cellular homeostasis in epithelial cells from human cornea and retina. Acta Ophthalmol 2024; 102 Suppl 281:3-68. [PMID: 38386419 DOI: 10.1111/aos.16646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 01/16/2024] [Indexed: 02/24/2024]
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An J, Zhang CP, Qiu HY, Zhang HX, Chen QB, Zhang YM, Lei XL, Zhang CX, Yin H, Zhang Y. Enhancement of the viability of T cells electroporated with DNA via osmotic dampening of the DNA-sensing cGAS-STING pathway. Nat Biomed Eng 2024; 8:149-164. [PMID: 37500747 DOI: 10.1038/s41551-023-01073-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 06/27/2023] [Indexed: 07/29/2023]
Abstract
Viral delivery of DNA for the targeted reprogramming of human T cells can lead to random genomic integration, and electroporation is inefficient and can be toxic. Here we show that electroporation-induced toxicity in primary human T cells is mediated by the cytosolic pathway cGAS-STING (cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) synthase-stimulator of interferon genes). We also show that an isotonic buffer, identified by screening electroporation conditions, that reduces cGAS-STING surveillance allowed for the production of chimaeric antigen receptor (CAR) T cells with up to 20-fold higher CAR T cell numbers than standard electroporation and with higher antitumour activity in vivo than lentivirally generated CAR T cells. The osmotic pressure of the electroporation buffer dampened cGAS-DNA interactions, affecting the production of the STING activator 2'3'-cGAMP. The buffer also led to superior efficiencies in the transfection of therapeutically relevant primary T cells and human haematopoietic stem cells. Our findings may facilitate the optimization of electroporation-mediated DNA delivery for the production of genome-engineered T cells.
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Affiliation(s)
- Jing An
- Department of Rheumatology and Immunology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Chuan-Ping Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, China
| | - Hou-Yuan Qiu
- Department of Rheumatology and Immunology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Hong-Xia Zhang
- Department of Urology, Department of Pathology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Qiu-Bing Chen
- Department of Urology, Department of Pathology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Yu-Ming Zhang
- Department of Rheumatology and Immunology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Xin-Lin Lei
- Department of Urology, Department of Pathology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Cai-Xiang Zhang
- Department of Rheumatology and Immunology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Hao Yin
- Department of Urology, Department of Pathology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China.
- TaiKang Centre for Life and Medical Sciences, TaiKang Medical School, Wuhan University, Wuhan, China.
- State Key Laboratory of Virology, Wuhan University, Wuhan, China.
- RNA Institute, Wuhan University, Wuhan, China.
| | - Ying Zhang
- Department of Rheumatology and Immunology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China.
- State Key Laboratory of Virology, Wuhan University, Wuhan, China.
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45
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Monti M, Ferrari G, Grosso V, Missale F, Bugatti M, Cancila V, Zini S, Segala A, La Via L, Consoli F, Orlandi M, Valerio A, Tripodo C, Rossato M, Vermi W. Impaired activation of plasmacytoid dendritic cells via toll-like receptor 7/9 and STING is mediated by melanoma-derived immunosuppressive cytokines and metabolic drift. Front Immunol 2024; 14:1227648. [PMID: 38239354 PMCID: PMC10795195 DOI: 10.3389/fimmu.2023.1227648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 12/04/2023] [Indexed: 01/22/2024] Open
Abstract
Introduction Plasmacytoid dendritic cells (pDCs) infiltrate a large set of human cancers. Interferon alpha (IFN-α) produced by pDCs induces growth arrest and apoptosis in tumor cells and modulates innate and adaptive immune cells involved in anti-cancer immunity. Moreover, effector molecules exert tumor cell killing. However, the activation state and clinical relevance of pDCs infiltration in cancer is still largely controversial. In Primary Cutaneous Melanoma (PCM), pDCs density decreases over disease progression and collapses in metastatic melanoma (MM). Moreover, the residual circulating pDC compartment is defective in IFN-α production. Methods The activation of tumor-associated pDCs was evaluated by in silico and microscopic analysis. The expression of human myxovirus resistant protein 1 (MxA), as surrogate of IFN-α production, and proximity ligation assay (PLA) to test dsDNA-cGAS activation were performed on human melanoma biopsies. Moreover, IFN-α and CXCL10 production by in vitro stimulated (i.e. with R848, CpG-A, ADU-S100) pDCs exposed to melanoma cell lines supernatants (SN-mel) was tested by intracellular flow cytometry and ELISA. We also performed a bulk RNA-sequencing on SN-mel-exposed pDCs, resting or stimulated with R848. Glycolytic rate assay was performed on SN-mel-exposed pDCs using the Seahorse XFe24 Extracellular Flux Analyzer. Results Based on a set of microscopic, functional and in silico analyses, we demonstrated that the melanoma milieu directly impairs IFN-α and CXCL10 production by pDCs via TLR-7/9 and cGAS-STING signaling pathways. Melanoma-derived immunosuppressive cytokines and a metabolic drift represent relevant mechanisms enforcing pDC-mediated melanoma escape. Discussion These findings propose a new window of intervention for novel immunotherapy approaches to amplify the antitumor innate immune response in cutaneous melanoma (CM).
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Affiliation(s)
- Matilde Monti
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Giorgia Ferrari
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Valentina Grosso
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Francesco Missale
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
- Department of Head & Neck Oncology & Surgery Otorhinolaryngology, Nederlands Kanker Instituut, Amsterdam, Netherlands
| | - Mattia Bugatti
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Valeria Cancila
- Tumor Immunology Unit, Department of Health Sciences, University of Palermo, Palermo, Italy
| | - Stefania Zini
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Agnese Segala
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Luca La Via
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Francesca Consoli
- Oncology Unit, Azienda Socio Sanitaria Territoriale (ASST) Spedali Civili di Brescia, Brescia, Italy
| | - Matteo Orlandi
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Claudio Tripodo
- Tumor Immunology Unit, Department of Health Sciences, University of Palermo, Palermo, Italy
- IFOM ETS, the AIRC Institute of Molecular Oncology, Milan, Italy
| | - Marzia Rossato
- Department of Biotechnology, University of Verona, Verona, Italy
| | - William Vermi
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, United States
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46
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Yang X, Liu Z. Role of TBK1 Inhibition in Targeted Therapy of Cancer. Mini Rev Med Chem 2024; 24:1031-1045. [PMID: 38314681 DOI: 10.2174/0113895575271977231115062803] [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: 07/13/2023] [Revised: 09/16/2023] [Accepted: 09/16/2023] [Indexed: 02/06/2024]
Abstract
TANK-binding kinase 1 (TBK1) is a serine/threonine protein that plays a crucial role in various biological processes like immunity, autophagy, cell survival, and proliferation. The level and kinase activity of the TBK1 protein is regulated through post-translational modifications (PTMs). TBK1 mainly mediates the activation of IRF3/7 and NF-κB signaling pathways while also participating in the regulation of cellular activities such as autophagy, mitochondrial metabolism, and cell proliferation. TBK1 regulates immune, metabolic, inflammatory, and tumor occurrence and development within the body through these cellular activities. TBK1 kinase has emerged as a promising therapeutic target for tumor immunity. However, its molecular mechanism of action remains largely unknown. The identification of selective TBK1 small molecule inhibitors can serve as valuable tools for investigating the biological function of TBK1 protein and also as potential drug candidates for tumor immunotherapy. The current research progress indicates that some TBK1 inhibitors (compounds 15,16 and 21) exhibit certain antitumor effects in vitro culture systems. Here, we summarize the mechanism of action of TBK1 in tumors in recent years and the progress of small molecule inhibitors of TBK1.
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Affiliation(s)
- Xueqing Yang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, China
| | - Zongliang Liu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, China
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47
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Rutledge CA. Molecular mechanisms underlying sarcopenia in heart failure. THE JOURNAL OF CARDIOVASCULAR AGING 2024; 4:7. [PMID: 38455513 PMCID: PMC10919908 DOI: 10.20517/jca.2023.40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
The loss of skeletal muscle, also known as sarcopenia, is an aging-associated muscle disorder that is disproportionately present in heart failure (HF) patients. HF patients with sarcopenia have poor outcomes compared to the overall HF patient population. The prevalence of sarcopenia in HF is only expected to grow as the global population ages, and novel treatment strategies are needed to improve outcomes in this cohort. Multiple mechanistic pathways have emerged that may explain the increased prevalence of sarcopenia in the HF population, and a better understanding of these pathways may lead to the development of therapies to prevent muscle loss. This review article aims to explore the molecular mechanisms linking sarcopenia and HF, and to discuss treatment strategies aimed at addressing such molecular signals.
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Affiliation(s)
- Cody A. Rutledge
- Acute Medicine Section, Division of Medicine, Louis Stokes Cleveland Veteran Affairs Medical Center, Cleveland, OH 44106, USA
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
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48
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Lim S, Jung HR, Lee H, Chu Y, Kim H, Kim E, Lee S. Microtubule-destabilizing agents enhance STING-mediated innate immune response via biased mechanism in human monocyte cells. Biomed Pharmacother 2023; 169:115883. [PMID: 37979373 DOI: 10.1016/j.biopha.2023.115883] [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: 08/17/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 11/20/2023] Open
Abstract
The stimulator of the interferon gene (STING) signaling pathway acts as a primary defense system against DNA pathogens. Because of the crucial role of STING in type I interferon (IFN) response and innate immunity, extensive research has been conducted to elucidate the roles of various effector molecules involved in STING-mediated signal transduction. However, despite the substantial contribution of microtubules to the immune system, the association between the STING signaling pathway and microtubules remains unclear. In this study, we revealed that the modulation of STING via microtubule-destabilizing agents (MDAs) specifically induced type I IFN responses rather than inflammatory responses in human monocytes. Co-treatment of MDAs with STING agonists induced the elevation of phospho-TANK-binding kinase 1 (TBK1), amplifying the innate immune response. However, during the deficiency of TBK1, the non-canonical signaling pathway through nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) contributed to MDA-induced STING activation in type I IFN response which suggested the versatile regulation of MDA in STING-mediated immunity.
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Affiliation(s)
- Songhyun Lim
- Center for Brain Disorders, Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, South Korea
| | - Hee Ra Jung
- Center for Brain Disorders, Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, South Korea
| | - Hyelim Lee
- Center for Brain Disorders, Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, South Korea
| | - Yeonjeong Chu
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Hyejin Kim
- Therapeutics & Biotechnology Division, Korea Research Institute of Chemical Technology, Daejeon 34114, South Korea
| | - Eunha Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Sanghee Lee
- Center for Brain Disorders, Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, South Korea; Department of HY-KIST Bio-convergence, Hanyang University, Seoul 04763, South Korea.
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49
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Hou MH, Wang YC, Yang CS, Liao KF, Chang JW, Shih O, Yeh YQ, Sriramoju MK, Weng TW, Jeng US, Hsu STD, Chen Y. Structural insights into the regulation, ligand recognition, and oligomerization of bacterial STING. Nat Commun 2023; 14:8519. [PMID: 38129386 PMCID: PMC10739871 DOI: 10.1038/s41467-023-44052-x] [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: 05/22/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023] Open
Abstract
The cyclic GMP-AMP synthase (cGAS)/stimulator of interferon gene (STING) signaling pathway plays a critical protective role against viral infections. Metazoan STING undergoes multilayers of regulation to ensure specific signal transduction. However, the mechanisms underlying the regulation of bacterial STING remain unclear. In this study, we determined the crystal structure of anti-parallel dimeric form of bacterial STING, which keeps itself in an inactive state by preventing cyclic dinucleotides access. Conformational transition between inactive and active states of bacterial STINGs provides an on-off switch for downstream signaling. Some bacterial STINGs living in extreme environment contain an insertion sequence, which we show codes for an additional long lid that covers the ligand-binding pocket. This lid helps regulate anti-phage activities. Furthermore, bacterial STING can bind cyclic di-AMP in a triangle-shaped conformation via a more compact ligand-binding pocket, forming spiral-shaped protofibrils and higher-order fibril filaments. Based on the differences between cyclic-dinucleotide recognition, oligomerization, and downstream activation of different bacterial STINGs, we proposed a model to explain structure-function evolution of bacterial STINGs.
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Grants
- National Science and Technology Council, Taiwan, 109-2311-B241-001 National Science and Technology Council, Taiwan, 111-2311-B-039-001-MY3
- National Science and Technology Council, Taiwan, 111-2811-M-001-125
- National Science and Technology Council, Taiwan, 110-2113-M-001-050-MY3 National Science and Technology Council, Taiwan, 110-2311-B-001-013-MY3 Academia Sinica intramural fund, an Academia Sinica Career Development Award, Academia Sinica, AS-CDA-109-L08 Infectious Disease Research Supporting Grant, AS-IDR-110-08.
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Affiliation(s)
- Mei-Hui Hou
- Genomics BioSci. & Tech. Co. Ltd., New Taipei, 221411, Taiwan
| | - Yu-Chuan Wang
- Genomics BioSci. & Tech. Co. Ltd., New Taipei, 221411, Taiwan
| | - Chia-Shin Yang
- Genomics BioSci. & Tech. Co. Ltd., New Taipei, 221411, Taiwan
| | - Kuei-Fen Liao
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu, 300092, Taiwan
| | - Je-Wei Chang
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu, 300092, Taiwan
| | - Orion Shih
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu, 300092, Taiwan
| | - Yi-Qi Yeh
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu, 300092, Taiwan
| | | | - Tzu-Wen Weng
- Institute of Biological Chemistry, Academia Sinica, Taipei, 115024, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei, 106319, Taiwan
| | - U-Ser Jeng
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu, 300092, Taiwan
- Department of Chemical Engineering & College of Semiconductor Research, National Tsing Hua University, Hsinchu, 300044, Taiwan
| | - Shang-Te Danny Hsu
- Institute of Biological Chemistry, Academia Sinica, Taipei, 115024, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei, 106319, Taiwan
| | - Yeh Chen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, 402202, Taiwan.
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50
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Madsen HB, Pease LI, Scanlan RL, Akbari M, Rasmussen LJ, Shanley DP, Bohr VA. The DNA repair enzyme, aprataxin, plays a role in innate immune signaling. Front Aging Neurosci 2023; 15:1290681. [PMID: 38161589 PMCID: PMC10754971 DOI: 10.3389/fnagi.2023.1290681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 11/20/2023] [Indexed: 01/03/2024] Open
Abstract
Ataxia with oculomotor apraxia type 1 (AOA1) is a progressive neurodegenerative disorder characterized by a gradual loss of coordination of hand movements, speech, and eye movements. AOA1 is caused by an inactivation mutation in the APTX gene. APTX resolves abortive DNA ligation intermediates. APTX deficiency may lead to the accumulation of 5'-AMP termini, especially in the mitochondrial genome. The consequences of APTX deficiency includes impaired mitochondrial function, increased DNA single-strand breaks, elevated reactive oxygen species production, and altered mitochondrial morphology. All of these processes can cause misplacement of nuclear and mitochondrial DNA, which can activate innate immune sensors to elicit an inflammatory response. This study explores the impact of APTX knockout in microglial cells, the immune cells of the brain. RNA-seq analysis revealed significant differences in the transcriptomes of wild-type and APTX knockout cells, especially in response to viral infections and innate immune pathways. Specifically, genes and proteins involved in the cGAS-STING and RIG-I/MAVS pathways were downregulated in APTX knockout cells, which suggests an impaired immune response to cytosolic DNA and RNA. The clinical relevance of these findings was supported by analyzing publicly available RNA-seq data from AOA1 patient cell lines. Comparisons between APTX-deficient patient cells and healthy control cells also revealed altered immune responses and dysregulated DNA- and RNA-sensing pathways in the patient cells. Overall, this study highlights the critical role of APTX in regulating innate immunity, particularly in DNA- and RNA-sensing pathways. Our findings contribute to a better understanding of the underlying molecular mechanisms of AOA1 pathology and highlights potential therapeutic targets for this disease.
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Affiliation(s)
- Helena B. Madsen
- Center for Healthy Aging, Institute of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Louise I. Pease
- CAMPUS for Ageing and Vitality, Newcastle University, Newcastle, United Kingdom
| | | | - Mansour Akbari
- Center for Healthy Aging, Institute of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Lene J. Rasmussen
- Center for Healthy Aging, Institute of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Daryl P. Shanley
- CAMPUS for Ageing and Vitality, Newcastle University, Newcastle, United Kingdom
| | - Vilhelm A. Bohr
- Center for Healthy Aging, Institute of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
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