1
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Luo C, Ma C, Xu G, Lu C, Ma J, Huang Y, Nie L, Yu C, Xia Y, Liu Z, Zhu Y, Liu S. Hepatitis B surface antigen hijacks TANK-binding kinase 1 to suppress type I interferon and induce early autophagy. Cell Death Dis 2025; 16:304. [PMID: 40234418 PMCID: PMC12000394 DOI: 10.1038/s41419-025-07605-0] [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: 07/16/2024] [Revised: 03/19/2025] [Accepted: 03/27/2025] [Indexed: 04/17/2025]
Abstract
There are close links between innate immunity and autophagy. However, the crosstalk between innate immunity and autophagy in host cells infected with hepatitis B virus (HBV) remains unclear. Here, we reported that HBsAg suppressed type I interferon production and induced the accumulation of autophagosomes. HBsAg boosted TANK-binding kinase 1 (TBK1) phosphorylation and depressed interferon regulatory factor 3 (IRF3) phosphorylation ex vivo and in vivo. Mechanistic studies showed that HBsAg interaction with the kinase domain (KD) of TBK1 augmented its dimerization but disrupted TBK1-IRF3 complexes. Using the TBK1 inhibitor, BX795, we discovered that HBsAg-enhanced TBK1 dimerization, promoting sequestosome-1 (p62) phosphorylation, was necessary for HBV-induced autophagy and HBV replication. Moreover, HBsAg blocked autophagosome-lysosome fusion by inhibiting the synaptosomal-associated protein 29 (SNAP29) promoter. Notably, liver tissues from HBsAg transgenic mice or chronic HBV patients revealed that IFNβ signaling was inhibited and incomplete autophagy was induced. These findings suggest a novel mechanism by which HBsAg targets TBK1 to inhibit type I interferon and induce early autophagy, possibly leading to persistent HBV infection. Molecular mechanisms of HBsAg suppression of the IFNβ signaling pathway and triggering of early autophagy. HBsAg targets the kinase domain of TBK1, thereby disrupting the TBK1-IRF3 complex and inhibiting type I interferon production. On the other hand, HBsAg enhances TBK1 dimerization and phosphorylation, which upregulates the phosphorylation of p62 to induce p62-mediated autophagy. Furthermore, HBV infection causes the accumulation of autophagosomes. This is achieved by HBsAg suppressing the SNAP29 promoter activity, which blocks autophagosome-lysosome fusion.
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Affiliation(s)
- Chuanjin Luo
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Caijiao Ma
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Gang Xu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Chengbo Lu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - June Ma
- Department of Clinical Laboratory, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Huang
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Longyu Nie
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Chen Yu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Yongfang Xia
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Zhiqiang Liu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Ying Zhu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China.
| | - Shi Liu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China.
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2
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Kim HJ, Kim HJ, Kim SY, Roh J, Yun JH, Kim CH. TBK1 is a signaling hub in coordinating stress-adaptive mechanisms in head and neck cancer progression. Autophagy 2025:1-23. [PMID: 40114316 DOI: 10.1080/15548627.2025.2481661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2024] [Revised: 03/10/2025] [Accepted: 03/14/2025] [Indexed: 03/22/2025] Open
Abstract
Tumorigenesis is closely linked to the ability of cancer cells to activate stress-adaptive mechanisms in response to various cellular stressors. Stress granules (SGs) play a crucial role in promoting cancer cell survival, invasion, and treatment resistance, and influence tumor immune escape by protecting essential mRNAs involved in cell metabolism, signaling, and stress responses. TBK1 (TANK binding kinase 1) functions in antiviral innate immunity, cell survival, and proliferation in both the tumor microenvironment and tumor cells. Here, we report that MUL1 loss results in the hyperactivation of TBK1 in both HNC cells and tissues. Mechanistically, under proteotoxic stress induced by proteasomal inhibition, HSP90 inhibition, or Ub+ stress, MUL1 promotes the degradation of active TBK1 through K48-linked ubiquitination at lysine 584. Furthermore, TBK1 facilitates autophagosome-lysosome fusion and phosphorylates SQSTM1, regulating selective macroautophagic/autophagic clearance in HNC cells. TBK1 is required for SG formation and cellular protection. Moreover, we found that MAP1LC3B is partially localized within SGs. TBK1 depletion enhances the sensitivity of HNC cells to cisplatin-induced cell death. GSK8612, a novel TBK1 inhibitor, significantly inhibits HNC tumorigenesis in xenografts. In summary, our study reveals that TBK1 facilitates the rapid removal of ubiquitinated proteins within the cell through protective autophagy under stress conditions and assists SG formation through the use of the autophagy machinery. These findings highlight the potential of TBK1 as a therapeutic target in HNC treatment.Abbreviations: ALP: autophagy-lysosomal pathway; AMBRA1: autophagy and beclin 1 regulator 1; BaF: bafilomycin A1; CC: coiled-coil; CD274/PDL-1: CD274 molecule; CHX: cycloheximide; CQ: chloroquine; DNP: dinitrophenol; EGFR: epidermal growth factor receptor; ESCC: esophageal squamous cell carcinoma; G3BP1: G3BP stress granule assembly factor 1; HNC: head and neck cancer; HPV: human papillomavirus; IFN: interferon; IGFBP3: insulin like growth factor binding protein 3; IRF: interferon-regulatory factor 3; KO: knockout; LAMP1: lysosomal associated membrane protein 1; MAP1LC3B: microtubule associated protein 1 light chain 3 beta; NPC: nasopharyngeal carcinoma; PABP: poly(A) binding protein; PI: proteasome inhibitor; PQC: protein quality control; PROTAC: proteolysis-targeting chimera; PURA/PURα: purine rich element binding protein A; RIGI: RNA sensor RIG-I; SD: standard deviation; SG: stress granule; SQSTM1: sequestosome 1; STING1: stimulator of interferon response cGAMP interactor 1; TBK1: TANK binding kinase 1; UPS: ubiquitin-proteasome system; USP10: ubiquitin specific peptidase 10; VCP: valosin containing protein; VHL: von Hippel-Lindau tumor suppressor; WT: wild type.
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Affiliation(s)
- Hyo Jeong Kim
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Haeng-Jun Kim
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Sun-Yong Kim
- Department of New Business Development, Future Business Division, DaehanNupharm Co. Ltd, Seongnam, Republic of Korea
| | - Jin Roh
- Department of Pathology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Ju Hyun Yun
- Department of Otolaryngology, Ewha Womans University Seoul Hospital, Seoul, Republic of Korea
| | - Chul-Ho Kim
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, Republic of Korea
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
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3
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Hui L, Chen X, Huang M, Jiang Y, Liu T. TANK-Binding Kinase 1 in the Pathogenesis and Treatment of Inflammation-Related Diseases. Int J Mol Sci 2025; 26:1941. [PMID: 40076567 PMCID: PMC11900955 DOI: 10.3390/ijms26051941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2025] [Revised: 02/20/2025] [Accepted: 02/21/2025] [Indexed: 03/14/2025] Open
Abstract
TANK-binding kinase 1 (TBK1) is a key signaling kinase involved in innate immune and inflammatory responses. TBK1 drives immune cells to participate in the inflammatory response by activating the NF-κB and interferon regulatory factor signaling pathways in immune cells, promoting the expression of pro-inflammatory genes, and regulating immune cell function. Thus, it plays a crucial role in initiating a signaling cascade that establishes an inflammatory environment. In inflammation-related diseases, TBK1 acts as a bridge linking inflammation to immunity, metabolism, or tumorigenesis, playing an important role in the pathogenesis of immune-mediated inflammatory diseases, metabolic, inflammatory syndromes, and inflammation-associated cancers by regulating the activation of inflammatory pathways and the production of inflammatory cytokines in cells. In this review, we focused on the mechanisms of TBK1 in immune cells and inflammatory-related diseases, providing new insights for further studies targeting TBK1 as a potential treatment for inflammation-related diseases. Thus, optimizing and investigating highly selective cell-specific TBK1 inhibitors is important for their application in these diseases.
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Affiliation(s)
- Lu Hui
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, No. 20, Section 3, Renmin Road South, Chengdu 610041, China; (L.H.); (X.C.); (M.H.)
| | - Xiaolin Chen
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, No. 20, Section 3, Renmin Road South, Chengdu 610041, China; (L.H.); (X.C.); (M.H.)
| | - Mengke Huang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, No. 20, Section 3, Renmin Road South, Chengdu 610041, China; (L.H.); (X.C.); (M.H.)
| | - Yongmei Jiang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, No. 20, Section 3, Renmin Road South, Chengdu 610041, China; (L.H.); (X.C.); (M.H.)
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - Ting Liu
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, No. 20, Section 3, Renmin Road South, Chengdu 610041, China; (L.H.); (X.C.); (M.H.)
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
- State Key Laboratory of Biotherapy and Cancer Center/National Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China
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4
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Paul S, Biswas SR, Milner JP, Tomsick PL, Pickrell AM. Adaptor-Mediated Trafficking of Tank Binding Kinase 1 During Diverse Cellular Processes. Traffic 2025; 26:e70000. [PMID: 40047067 PMCID: PMC11883510 DOI: 10.1111/tra.70000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2024] [Revised: 02/11/2025] [Accepted: 02/14/2025] [Indexed: 03/09/2025]
Abstract
The serine/threonine kinase, Tank Binding Kinase 1 (TBK1), drives distinct cellular processes like innate immune signaling, selective autophagy, and mitosis. It is suggested that the translocation and activation of TBK1 at different subcellular locations within the cell, downstream of diverse stimuli, are driven by TBK1 adaptor proteins forming a complex directly or indirectly with TBK1. Various TBK1 adaptors and associated proteins like NAP1, TANK, SINTBAD, p62, optineurin (OPTN), TAX1BP1, STING, and NDP52 have been identified in facilitating TBK1 activation and recruitment with varying overlapping redundancy. This review focuses on what is known about these proteins, their interactions with TBK1, and the functional consequences of these associations. We shed light on underexplored areas of research on these TBK1 binding partners while emphasizing how future research is required to understand the function and flexibility of TBK1 signaling and crosstalk or regulation between different biological processes.
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Affiliation(s)
- Swagatika Paul
- Graduate Program in Biomedical and Veterinary SciencesVirginia‐Maryland College of Veterinary MedicineBlacksburgVirginiaUSA
| | - Sahitya Ranjan Biswas
- Translational Biology, Medicine, and Health Graduate ProgramVirginia Polytechnic Institute and State UniversityRoanokeVirginiaUSA
| | - Julia P. Milner
- School of NeuroscienceVirginia Polytechnic Institute and State UniversityBlacksburgVirginiaUSA
| | - Porter L. Tomsick
- School of NeuroscienceVirginia Polytechnic Institute and State UniversityBlacksburgVirginiaUSA
| | - Alicia M. Pickrell
- School of NeuroscienceVirginia Polytechnic Institute and State UniversityBlacksburgVirginiaUSA
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5
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Bartlett BM, Kumar Y, Boyle S, Chowdhury T, Quintanilla A, Boumendil C, Acosta JC, Bickmore WA. TPR is required for cytoplasmic chromatin fragment formation during senescence. eLife 2024; 13:e101702. [PMID: 39625470 DOI: 10.7554/elife.101702] [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: 07/24/2024] [Accepted: 11/25/2024] [Indexed: 12/24/2024] Open
Abstract
During oncogene-induced senescence there are striking changes in the organisation of heterochromatin in the nucleus. This is accompanied by activation of a pro-inflammatory gene expression programme - the senescence-associated secretory phenotype (SASP) - driven by transcription factors such as NF-κB. The relationship between heterochromatin re-organisation and the SASP has been unclear. Here, we show that TPR, a protein of the nuclear pore complex basket required for heterochromatin re-organisation during senescence, is also required for the very early activation of NF-κB signalling during the stress-response phase of oncogene-induced senescence. This is prior to activation of the SASP and occurs without affecting NF-κB nuclear import. We show that TPR is required for the activation of innate immune signalling at these early stages of senescence and we link this to the formation of heterochromatin-enriched cytoplasmic chromatin fragments thought to bleb off from the nuclear periphery. We show that HMGA1 is also required for cytoplasmic chromatin fragment formation. Together these data suggest that re-organisation of heterochromatin is involved in altered structural integrity of the nuclear periphery during senescence, and that this can lead to activation of cytoplasmic nucleic acid sensing, NF-κB signalling, and activation of the SASP.
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Affiliation(s)
- Bethany M Bartlett
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Yatendra Kumar
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Shelagh Boyle
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Tamoghna Chowdhury
- Centre for Regenerative Medicine, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, United Kingdom
| | - Andrea Quintanilla
- Institute of Biomedicine and Biotechnology of Cantabria (CSIC-Universidad de Cantabria), Santander, Spain
| | - Charlene Boumendil
- Institute of Human Genetics, UMR9002, CNRS - Université de Montpellier, Montpellier, France
| | - Juan Carlos Acosta
- Institute of Biomedicine and Biotechnology of Cantabria (CSIC-Universidad de Cantabria), Santander, Spain
| | - Wendy A Bickmore
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
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6
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Kim MH, Subasinghe A, Kim Y, Kwon HI, Cho Y, Chathuranga K, Cha JW, Moon JY, Hong JH, Kim J, Lee SC, Dodantenna N, Gamage N, Chathuranga WAG, Kim Y, Yoon IJ, Lee JY, Mo IP, Jheong W, Yoo SS, Lee JS. Development and characterization of high-efficiency cell-adapted live attenuated vaccine candidate against African swine fever. Emerg Microbes Infect 2024; 13:2432372. [PMID: 39584308 DOI: 10.1080/22221751.2024.2432372] [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: 07/16/2024] [Revised: 11/12/2024] [Accepted: 11/17/2024] [Indexed: 11/26/2024]
Abstract
African swine fever (ASF), a contagious and lethal haemorrhagic disease of domestic pigs and wild boars, poses a significant threat to the global pig industry. Although experimental vaccine candidates derived from naturally attenuated, genetically engineered, or cell culture-adapted ASF virus have been tested, no commercial vaccine is accepted globally. We developed a safe and effective cell-adapted live attenuated vaccine candidate (ASFV-MEC-01) by serial passage of a field isolate in CA-CAS-01-A cells. ASFV-MEC-01, isolated via repeated plaque purification using next-generation sequencing analysis, was obtained at passage 18 and showed significant attenuation in 4- and 6-week-old pigs. ASFV-MEC-01 conferred 100% protection against challenge with lethal parental ASFV, which correlated with high ASFV-specific humoral and cellular immune responses. Additionally, ASFV-MEC-01 was not detected in blood until 28 days post-inoculation. Global transcriptome analysis showed that ASFV-MEC-01 lacking 12 genes triggered stronger innate antiviral responses than the parental virus, as exemplified by high levels of mRNA encoding interferon regulatory and inflammatory genes in PAM cells. Ectopic expression of most deleted genes increased replication of DNA viruses by suppressing production of interferons and pro-inflammatory cytokines. Among the genes deleted from ASFV-MEC-01, MGF100-1R interacted specifically with the scaffold dimerization domain of TBK1, thereby preventing TBK1 dimerization and impairing TBK1-mediated type I IFN and NF-κB signalling. These results suggest that attenuation of ASFV-MEC-01 may be mediated by induction of stronger type I IFN and NF-κB signalling within the host innate immune system. Thus, ASFV-MEC-01 could be a safe and effective live attenuated ASFV vaccine candidate with commercial potential.
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Affiliation(s)
- Min Ho Kim
- ChoongAng Vaccine Laboratories, Daejeon, Republic of Korea
| | - Ashan Subasinghe
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Yongkwan Kim
- Wildlife Disease Response Team, National Institute of Wildlife Disease Control and Prevention, Gwangju, Republic of Korea
| | - Hyeok-Il Kwon
- ChoongAng Vaccine Laboratories, Daejeon, Republic of Korea
| | - Yehjin Cho
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Kiramage Chathuranga
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Ji-Won Cha
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Ji-Yoon Moon
- ChoongAng Vaccine Laboratories, Daejeon, Republic of Korea
| | - Ji-Hyeon Hong
- ChoongAng Vaccine Laboratories, Daejeon, Republic of Korea
| | - Jin Kim
- ChoongAng Vaccine Laboratories, Daejeon, Republic of Korea
| | - Seung-Chul Lee
- ChoongAng Vaccine Laboratories, Daejeon, Republic of Korea
| | - Niranjan Dodantenna
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Nuwan Gamage
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - W A Gayan Chathuranga
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Yeonji Kim
- Wildlife Disease Response Team, National Institute of Wildlife Disease Control and Prevention, Gwangju, Republic of Korea
| | - In-Joong Yoon
- ChoongAng Vaccine Laboratories, Daejeon, Republic of Korea
| | - Joo Young Lee
- ChoongAng Vaccine Laboratories, Daejeon, Republic of Korea
| | - In Pil Mo
- AviNext, Cheongju, Republic of Korea
| | - Weonhwa Jheong
- Wildlife Disease Response Team, National Institute of Wildlife Disease Control and Prevention, Gwangju, Republic of Korea
| | - Sung-Sik Yoo
- ChoongAng Vaccine Laboratories, Daejeon, Republic of Korea
| | - Jong-Soo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
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7
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Jiao M, Pirozzi CJ, Yu C, Bao X, Hu M, Pan D, Littleton S, Reynolds N, Saban DR, Li F, Li CY. Targeting Catechol-O-Methyltransferase Induces Mitochondrial Dysfunction and Enhances the Efficacy of Radiotherapy in Glioma. Cancer Res 2024; 84:3640-3656. [PMID: 39088832 PMCID: PMC11532787 DOI: 10.1158/0008-5472.can-24-0134] [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: 01/13/2024] [Revised: 05/24/2024] [Accepted: 07/25/2024] [Indexed: 08/03/2024]
Abstract
Radiotherapy (RT) is commonly used to try to eliminate any remaining tumor cells following surgical resection of glioma. However, tumor recurrence is prevalent, highlighting the unmet medical need to develop therapeutic strategies to enhance the efficacy of RT in glioma. Focusing on the radiosensitizing potential of the currently approved drugs known to cross the blood-brain barrier can facilitate rapid clinical translation. Here, we assessed the role of catechol-O-methyltransferase (COMT), a key enzyme to degrade catecholamines and a drug target for Parkinson's disease, in glioma treatment. Analysis of The Cancer Genome Atlas data showed significantly higher COMT expression levels in both low-grade glioma and glioblastoma compared to normal brain tissues. Inhibition of COMT by genetic knockout or FDA-approved COMT inhibitors significantly sensitized glioma cells to RT in vitro and in vivo. Mechanistically, COMT inhibition in glioma cells led to mitochondria dysfunction and increased mitochondrial RNA release into the cytoplasm, activating the cellular antiviral double-stranded RNA sensing pathway and type I interferon (IFN) response. Elevated type I IFNs stimulated the phagocytic capacity of microglial cells, enhancing RT efficacy. Given the long-established safety record of the COMT inhibitors, these findings provide a solid rationale to evaluate them in combination with RT in patients with glioma. Significance: Inhibition of catechol-O-methyltransferase, a well-established drug target in Parkinson's disease, interferes with mitochondrial electron transport and induces mitochondrial double-stranded RNA leakage, activating type I interferon signaling and sensitizing glioma to radiotherapy.
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Affiliation(s)
- Meng Jiao
- Department of Dermatology, Duke University Medical Center, Durham, North Carolina
| | - Christopher J. Pirozzi
- Department of Pathology, Duke University Medical Center, Durham, North Carolina
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina
| | - Chen Yu
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina
| | - Xuhui Bao
- Department of Dermatology, Duke University Medical Center, Durham, North Carolina
- Department of Pathology, Duke University Medical Center, Durham, North Carolina
| | - Mengjie Hu
- Department of Dermatology, Duke University Medical Center, Durham, North Carolina
| | - Dong Pan
- Department of Dermatology, Duke University Medical Center, Durham, North Carolina
| | - Sejiro Littleton
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina
- Department of Immunology, Duke University Medical Center, Durham, North Carolina
| | - Nathan Reynolds
- Department of Pathology, Duke University Medical Center, Durham, North Carolina
| | - Daniel R. Saban
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina
- Department of Immunology, Duke University Medical Center, Durham, North Carolina
| | - Fang Li
- Department of Dermatology, Duke University Medical Center, Durham, North Carolina
| | - Chuan-Yuan Li
- Department of Dermatology, Duke University Medical Center, Durham, North Carolina
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina
- Institute for Molecular and Cellular Therapy, Chinese Institutes for Medical Research, and School of Basic Medical Sciences, Capital Medical University, Beijing, China
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8
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Adriaenssens E, Nguyen TN, Sawa-Makarska J, Khuu G, Schuschnig M, Shoebridge S, Skulsuppaisarn M, Watts EM, Csalyi KD, Padman BS, Lazarou M, Martens S. Control of mitophagy initiation and progression by the TBK1 adaptors NAP1 and SINTBAD. Nat Struct Mol Biol 2024; 31:1717-1731. [PMID: 38918639 PMCID: PMC11564117 DOI: 10.1038/s41594-024-01338-y] [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: 10/03/2023] [Accepted: 05/22/2024] [Indexed: 06/27/2024]
Abstract
Mitophagy preserves overall mitochondrial fitness by selectively targeting damaged mitochondria for degradation. The regulatory mechanisms that prevent PTEN-induced putative kinase 1 (PINK1) and E3 ubiquitin ligase Parkin (PINK1/Parkin)-dependent mitophagy and other selective autophagy pathways from overreacting while ensuring swift progression once initiated are largely elusive. Here, we demonstrate how the TBK1 (TANK-binding kinase 1) adaptors NAP1 (NAK-associated protein 1) and SINTBAD (similar to NAP1 TBK1 adaptor) restrict the initiation of OPTN (optineurin)-driven mitophagy by competing with OPTN for TBK1. Conversely, they promote the progression of nuclear dot protein 52 (NDP52)-driven mitophagy by recruiting TBK1 to NDP52 and stabilizing its interaction with FIP200. Notably, OPTN emerges as the primary recruiter of TBK1 during mitophagy initiation, which in return boosts NDP52-mediated mitophagy. Our results thus define NAP1 and SINTBAD as cargo receptor rheostats, elevating the threshold for mitophagy initiation by OPTN while promoting the progression of the pathway once set in motion by supporting NDP52. These findings shed light on the cellular strategy to prevent pathway hyperactivity while still ensuring efficient progression.
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Affiliation(s)
- Elias Adriaenssens
- Max Perutz Labs, Vienna Biocenter Campus (VBC), Vienna, Austria.
- University of Vienna, Max Perutz Labs, Department of Biochemistry and Cell Biology, Vienna, Austria.
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA.
| | - Thanh Ngoc Nguyen
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Justyna Sawa-Makarska
- Max Perutz Labs, Vienna Biocenter Campus (VBC), Vienna, Austria
- University of Vienna, Max Perutz Labs, Department of Biochemistry and Cell Biology, Vienna, Austria
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
| | - Grace Khuu
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Martina Schuschnig
- Max Perutz Labs, Vienna Biocenter Campus (VBC), Vienna, Austria
- University of Vienna, Max Perutz Labs, Department of Biochemistry and Cell Biology, Vienna, Austria
| | - Stephen Shoebridge
- Max Perutz Labs, Vienna Biocenter Campus (VBC), Vienna, Austria
- University of Vienna, Max Perutz Labs, Department of Biochemistry and Cell Biology, Vienna, Austria
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
| | - Marvin Skulsuppaisarn
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Emily Maria Watts
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
| | - Kitti Dora Csalyi
- Max Perutz Labs BioOptics FACS Facility, Max Perutz Labs, University of Vienna, Vienna BioCenter Campus (VBC), Vienna, Austria
| | - Benjamin Scott Padman
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
- Harry Perkins Institute of Medical Research, QEII Medical Centre, The University of Western Australia, Nedlands, Western Australia, Australia
- Telethon Kids Institute, Northern Entrance, Perth Children's Hospital, Nedlands, Western Australia, Australia
| | - Michael Lazarou
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA.
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia.
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia.
| | - Sascha Martens
- Max Perutz Labs, Vienna Biocenter Campus (VBC), Vienna, Austria.
- University of Vienna, Max Perutz Labs, Department of Biochemistry and Cell Biology, Vienna, Austria.
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA.
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9
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Ivanov J, Tenchov R, Ralhan K, Iyer KA, Agarwal S, Zhou QA. In Silico Insights: QSAR Modeling of TBK1 Kinase Inhibitors for Enhanced Drug Discovery. J Chem Inf Model 2024; 64:7488-7502. [PMID: 39289178 PMCID: PMC11480986 DOI: 10.1021/acs.jcim.4c00864] [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: 06/11/2024] [Revised: 08/17/2024] [Accepted: 09/05/2024] [Indexed: 09/19/2024]
Abstract
TBK1, or TANK-binding kinase 1, is an enzyme that functions as a serine/threonine protein kinase. It plays a crucial role in various cellular processes, including the innate immune response to viruses, cell proliferation, apoptosis, autophagy, and antitumor immunity. Dysregulation of TBK1 activity can lead to autoimmune diseases, neurodegenerative disorders, and cancer. Due to its central role in these critical pathways, TBK1 is a significant focus of research for therapeutic drug development. In this paper, we explore data from the CAS Content Collection regarding TBK1 and its implication in a large assortment of diseases and disorders. With the demand for developing efficient TBK1 inhibitors being outlined, we focus on utilizing a machine learning approach for developing predictive models for TBK1 inhibition, derived from the fragment-functional analysis descriptors. Using the extensive CAS Content Collection, we assembled a training set of TBK1 inhibitors with experimentally measured IC50 values. We explored several machine learning techniques combined with various molecular descriptors to derive and select the best TBK1 inhibitor QSAR models. Certain significant structural alerts that potentially contribute to inhibition of TBK1 are outlined and discussed. The merit of the article stems from identifying the most adequate TBK1 QSAR models and subsequent successful development of advanced positive training data to facilitate and enhance drug discovery for an important therapeutic target such as TBK1 inhibitors, based on an extensive, wide-ranging set of scientific information provided by the CAS Content Collection.
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Affiliation(s)
- Julian
M. Ivanov
- CAS,
A Division of the American Chemical Society, Columbus, Ohio 43210, United States
| | - Rumiana Tenchov
- CAS,
A Division of the American Chemical Society, Columbus, Ohio 43210, United States
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10
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Ma XT, Ou K, Yang WW, Cao BY, Yang L. Human epidermal growth factor receptor 2 expression level and combined positive score can evaluate efficacy of advanced gastric cancer. World J Clin Oncol 2024; 15:635-643. [PMID: 38835847 PMCID: PMC11145957 DOI: 10.5306/wjco.v15.i5.635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/08/2024] [Accepted: 04/02/2024] [Indexed: 05/21/2024] Open
Abstract
BACKGROUND Although treatment options for gastric cancer (GC) continue to advance, the overall prognosis for patients with GC remains poor. At present, the predictors of treatment efficacy remain controversial except for high microsatellite instability. AIM To develop methods to identify groups of patients with GC who would benefit the most from receiving the combination of a programmed cell death protein 1 (PD-1) inhibitor and chemotherapy. METHODS We acquired data from 63 patients with human epidermal growth factor receptor 2 (HER2)-negative GC with a histological diagnosis of GC at the Cancer Hospital, Chinese Academy of Medical Sciences between November 2020 and October 2022. All of the patients screened received a PD-1 inhibitor combined with chemotherapy as the first-line treatment. RESULTS As of July 1, 2023, the objective response rate was 61.9%, and the disease control rate was 96.8%. The median progression-free survival (mPFS) for all patients was 6.3 months. The median overall survival was not achieved. Survival analysis showed that patients with a combined positive score (CPS) ≥ 1 exhibited an extended trend in progression-free survival (PFS) when compared to patients with a CPS of 0 after receiving a PD-1 inhibitor combined with oxaliplatin and tegafur as the first-line treatment. PFS exhibited a trend for prolongation as the expression level of HER2 increased. Based on PFS, we divided patients into two groups: A treatment group with excellent efficacy and a treatment group with poor efficacy. The mPFS of the excellent efficacy group was 8 months, with a mPFS of 9.1 months after excluding a cohort of patients who received interrupted therapy due to surgery. The mPFS was 4.5 months in patients in the group with poor efficacy who did not receive surgery. Using good/poor efficacy as the endpoint of our study, univariate analysis revealed that both CPS score (P = 0.004) and HER2 expression level (P = 0.015) were both factors that exerted significant influence on the efficacy of treatment the combination of a PD-1 inhibitor and chemotherapy in patients with advanced GC (AGC). Finally, multivariate analysis confirmed that CPS score was a significant influencing factor. CONCLUSION CPS score and HER2 expression both impacted the efficacy of immunotherapy combined with chemotherapy in AGC patients who were non-positive for HER2.
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Affiliation(s)
- Xiao-Ting Ma
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Kai Ou
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Wen-Wei Yang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Bi-Yang Cao
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Lin Yang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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11
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Zhao X, Cao Y, Lu R, Zhou Z, Huang C, Li L, Huang J, Chen R, Wang Y, Huang J, Cheng J, Zheng J, Fu Y, Yu J. Phosphorylation of AGO2 by TBK1 Promotes the Formation of Oncogenic miRISC in NSCLC. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305541. [PMID: 38351659 PMCID: PMC11022703 DOI: 10.1002/advs.202305541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 01/22/2024] [Indexed: 04/18/2024]
Abstract
Non-small-cell lung cancer (NSCLC) is a highly lethal tumor that often develops resistance to targeted therapy. It is shown that Tank-binding kinase 1 (TBK1) phosphorylates AGO2 at S417 (pS417-AGO2), which promotes NSCLC progression by increasing the formation of microRNA-induced silencing complex (miRISC). High levels of pS417-AGO2 in clinical NSCLC specimens are positively associated with poor prognosis. Interestingly, the treatment with EGFR inhibitor Gefitinib can significantly induce pS417-AGO2, thereby increasing the formation and activity of oncogenic miRISC, which may contribute to NSCLC resistance to Gefitinib. Based on these, two therapeutic strategies is developed. One is jointly to antagonize multiple oncogenic miRNAs highly expressed in NSCLC and use TBK1 inhibitor Amlexanox reducing the formation of oncogenic miRISC. Another approach is to combine Gefitinib with Amlexanox to inhibit the progression of Gefitinib-resistant NSCLC. This findings reveal a novel mechanism of oncogenic miRISC regulation by TBK1-mediated pS417-AGO2 and suggest potential therapeutic approaches for NSCLC.
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Affiliation(s)
- Xian Zhao
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
- Department of Thoracic Surgery, Ren Ji HospitalShanghai Jiao Tong University School of MedicineShanghai200120China
| | - Yingting Cao
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Runhui Lu
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Zihan Zhou
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Caihu Huang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Lian Li
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Jiayi Huang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Ran Chen
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Yanli Wang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Jian Huang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Jinke Cheng
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Junke Zheng
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of EducationShanghai Jiao Tong University School of MedicineShanghai200025China
| | - Yujie Fu
- Department of Thoracic Surgery, Ren Ji HospitalShanghai Jiao Tong University School of MedicineShanghai200120China
| | - Jianxiu Yu
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and InflammationShanghai Jiao Tong University School of MedicineShanghai200025China
- Department of Thoracic Surgery, Ren Ji HospitalShanghai Jiao Tong University School of MedicineShanghai200120China
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12
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Luo W, Song Z, Xu G, Wang H, Mu W, Wen J, Zhang P, Qin S, Xiao X, Bai Z. LicochalconeB inhibits cGAS-STING signaling pathway and prevents autoimmunity diseases. Int Immunopharmacol 2024; 128:111550. [PMID: 38232536 DOI: 10.1016/j.intimp.2024.111550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 01/19/2024]
Abstract
Cytosolic DNA activates the STING (stimulator of interferon genes) signaling pathway to trigger interferon and inflammatory responses that protect against microbial infections and cancer. However, Aicardi-Goutières syndrome (AGS) persistently activates the STING signaling pathway, which can lead to severe autoimmune diseases. We demonstrate herein that Licochalcone B (LicoB), the main component of traditional licorice, is an inhibitor of the STING signaling pathway. We observed that LicoB inhibited the activation of the STING signaling pathway in macrophages. Mechanically, LicoB affected the STING-TBK1-IRF3 signal axis and inhibited the activation of the STING downstream signaling pathway. Furthermore, LicoB inhibited the increase in type I interferon levels in mice induced by the STING agonist CMA. LicoB significantly reduced systemic inflammation in Trex1-/- mice. Our results show that LicoB, a STING signaling pathway inhibitor, is a promising candidate for the treatment of diseases related to STING signaling pathway activation.
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Affiliation(s)
- Wei Luo
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China
| | - Zheng Song
- Peking University 302 Clinical Medical School, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Guang Xu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Hongbo Wang
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Wenqing Mu
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Jincai Wen
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Ping Zhang
- Department of Pharmacy, Medical Supplies Center of PLA General Hospital, Beijing 100039, China
| | - Shuanglin Qin
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China.
| | - Xiaohe Xiao
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China.
| | - Zhaofang Bai
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China.
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13
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Hu L, Zhang Y, Guo L, Zhong H, Xie L, Zhou J, Liao C, Yao H, Fang J, Liu H, Zhang C, Zhang H, Zhu X, Luo M, von Kriegsheim A, Li B, Luo W, Zhang X, Chen X, Mendell JT, Xu L, Kapur P, Baldwin AS, Brugarolas J, Zhang Q. Kinome-wide siRNA screen identifies a DCLK2-TBK1 oncogenic signaling axis in clear cell renal cell carcinoma. Mol Cell 2024; 84:776-790.e5. [PMID: 38211588 PMCID: PMC10922811 DOI: 10.1016/j.molcel.2023.12.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 10/23/2023] [Accepted: 12/10/2023] [Indexed: 01/13/2024]
Abstract
TANK-binding kinase 1 (TBK1) is a potential therapeutic target in multiple cancers, including clear cell renal cell carcinoma (ccRCC). However, targeting TBK1 in clinical practice is challenging. One approach to overcome this challenge would be to identify an upstream TBK1 regulator that could be targeted therapeutically in cancer specifically. In this study, we perform a kinome-wide small interfering RNA (siRNA) screen and identify doublecortin-like kinase 2 (DCLK2) as a TBK1 regulator in ccRCC. DCLK2 binds to and directly phosphorylates TBK1 on Ser172. Depletion of DCLK2 inhibits anchorage-independent colony growth and kidney tumorigenesis in orthotopic xenograft models. Conversely, overexpression of DCLK2203, a short isoform that predominates in ccRCC, promotes ccRCC cell growth and tumorigenesis in vivo. Mechanistically, DCLK2203 elicits its oncogenic signaling via TBK1 phosphorylation and activation. Taken together, these results suggest that DCLK2 is a TBK1 activator and potential therapeutic target for ccRCC.
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Affiliation(s)
- Lianxin Hu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yanfeng Zhang
- Quantitative Biomedical Research Center, Peter O'Donnell Jr. School of Public Health, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Lei Guo
- Quantitative Biomedical Research Center, Peter O'Donnell Jr. School of Public Health, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Hua Zhong
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ling Xie
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Jin Zhou
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Chengheng Liao
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Hongwei Yao
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jun Fang
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Hongyi Liu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Cheng Zhang
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Hui Zhang
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xiaoqiang Zhu
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Maowu Luo
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Alex von Kriegsheim
- Cancer Research UK Scotland Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Bufan Li
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Weibo Luo
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xuewu Zhang
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xian Chen
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Joshua T Mendell
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Lin Xu
- Quantitative Biomedical Research Center, Peter O'Donnell Jr. School of Public Health, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Payal Kapur
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Kidney Cancer Program, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Albert S Baldwin
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - James Brugarolas
- Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Kidney Cancer Program, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Qing Zhang
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Kidney Cancer Program, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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14
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Xiong LM, Zhang L, Long Z, Zhao X, Ying YR, Xiao TY, Xiong ST. TBK1 upregulates the interferon response against virus by the TBK1-IRF3/7 axis in yellow catfish (Pelteobagrus fulvidraco). FISH & SHELLFISH IMMUNOLOGY 2024; 144:109272. [PMID: 38061442 DOI: 10.1016/j.fsi.2023.109272] [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: 10/12/2023] [Revised: 11/29/2023] [Accepted: 12/04/2023] [Indexed: 12/31/2023]
Abstract
Yellow catfish (Pelteobagrus fulvidraco) is an important economic species of freshwater fish, widely distributed in China. Recently, viral diseases of yellow catfish have been identified in Chian (Hubei province), arising more attention to the viral immunity in P. fulvidraco. Tumor necrosis factor (TNF) receptor-associated factor NF-κB activator (TANK)-binding kinase 1 (TBK1) plays an essential role in IFN production and innate antiviral immunity. In the present study, we characterized the P. fulvidraco TBK1 (PfTBK1) and reported its function in interferon response. The full-length open reading frame (ORF) is 2184 bp encoding a protein with 727 amino acids, which is composed of four conserved domains, including KD, ULD, CCD1, and CCD2, similar to TBK1 in other species. Pftbk1 was widely expressed in all detected tissues by qPCR and was not inducible by the spring viremia of carp virus (SVCV), a single-strand RNA virus. In addition, the cellular distribution indicated that PfTBK1 was only located in the cytoplasm. Moreover, PfTBK1 induced strong IFN promoter activities through the Jak-stat pathway, and PfTBK1 interacted with and significantly phosphorylated IFN regulatory factor 3/7 (IRF3/7) in P. fulvidraco, promoting the nuclear translocation of pfIRF3 and PfIRF7, and PfTBK1 upregulated IFN response by PfTBK1-PfIRF3/7 axis. Above all, PfTBK1 triggered IFN response and strongly inhibited the replication of SVCV in EPC cells through induction of IFN downstream IFN-stimulated genes (ISGs). Summarily, this work reveals that PfTBK1 plays a positive regulatory role in IFN induction through the TBK1-IRF3/7 axis, laying a foundation for further exploring the molecular mechanism of the antiviral process in P. fulvidraco.
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Affiliation(s)
- Li-Ming Xiong
- Fisheries College, Hunan Agricultural University, Changsha, 410128, China; Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, Hunan Agricultural University, Changsha, 410128, China
| | - Lei Zhang
- Fisheries College, Hunan Agricultural University, Changsha, 410128, China; Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, Hunan Agricultural University, Changsha, 410128, China
| | - Zhe Long
- Fisheries College, Hunan Agricultural University, Changsha, 410128, China; Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, Hunan Agricultural University, Changsha, 410128, China
| | - Xiang Zhao
- Fisheries College, Hunan Agricultural University, Changsha, 410128, China; Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, Hunan Agricultural University, Changsha, 410128, China; Yuelushan Lab, Changsha, 410128, China
| | - Yan-Rong Ying
- Fisheries College, Hunan Agricultural University, Changsha, 410128, China; Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, Hunan Agricultural University, Changsha, 410128, China
| | - Tiao-Yi Xiao
- Fisheries College, Hunan Agricultural University, Changsha, 410128, China; Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, Hunan Agricultural University, Changsha, 410128, China; Yuelushan Lab, Changsha, 410128, China
| | - Shu-Ting Xiong
- Fisheries College, Hunan Agricultural University, Changsha, 410128, China; Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, Hunan Agricultural University, Changsha, 410128, China; Yuelushan Lab, Changsha, 410128, China.
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15
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Shima T, Ogura M, Matsuda R, Nakamura S, Jin N, Yoshimori T, Kuma A. The TMEM192-mKeima probe specifically assays lysophagy and reveals its initial steps. J Cell Biol 2023; 222:e202204048. [PMID: 37801070 PMCID: PMC10558291 DOI: 10.1083/jcb.202204048] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 04/28/2023] [Accepted: 09/19/2023] [Indexed: 10/07/2023] Open
Abstract
Membrane rupture of lysosomes results in leakage of their contents, which is harmful to cells. Recent studies have reported that several systems contribute to the repair or elimination of damaged lysosomes. Lysophagy is a type of selective autophagy that plays a crucial role in the lysosomal damage response. Because multiple pathways are involved in this response, an assay that specifically evaluates lysophagy is needed. Here, we developed the TMEM192-mKeima probe to evaluate lysophagy. By comparing the use of this probe with the conventional galectin-3 assay, we showed that this probe is more specific to lysophagy. Using TMEM192-mKeima, we showed that TFEB and p62 are important for the lysosomal damage response but not for lysophagy, although they have previously been considered to be involved in lysophagy. We further investigated the initial steps in lysophagy and identified UBE2L3, UBE2N, TRIM10, 16, and 27 as factors involved in it. Our results demonstrate that the TMEM192-mKeima probe is a useful tool for investigating lysophagy.
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Affiliation(s)
- Takayuki Shima
- Department of Genetics, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Monami Ogura
- Department of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
| | - Ruriko Matsuda
- Department of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
| | - Shuhei Nakamura
- Department of Genetics, Graduate School of Medicine, Osaka University, Osaka, Japan
- Department of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, Osaka, Japan
| | - Natsuko Jin
- Department of Genetics, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Tamotsu Yoshimori
- Department of Genetics, Graduate School of Medicine, Osaka University, Osaka, Japan
- Department of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Osaka, Japan
| | - Akiko Kuma
- Department of Genetics, Graduate School of Medicine, Osaka University, Osaka, Japan
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16
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Zhang XY, Li YY, Huang HX, Zhao CC, Lei XX, Zhao BP, Lu JY, Lan T, Sun WC. Seneca Valley virus 3C pro antagonizes host innate immune responses and programmed cell death. Front Microbiol 2023; 14:1235620. [PMID: 37869659 PMCID: PMC10588452 DOI: 10.3389/fmicb.2023.1235620] [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: 06/06/2023] [Accepted: 09/19/2023] [Indexed: 10/24/2023] Open
Abstract
Seneca Valley virus (SVV), a member of the Picornaviridae family, may cause serious water blister diseases in pregnant sows and acute death in newborn piglets, which have resulted in economic losses in pig production. The 3C protease is a vital enzyme for SVV maturation and is capable of regulating protein cleavage and RNA replication of the virus. Additionally, this protease can impede the host's innate immune response by targeting the interferon pathway's principal factor and enhance virus replication by modulating the host's RNA metabolism while simultaneously triggering programmed cell death. This article reviews recent studies on SVV 3C functions, which include viral replication promotion, cell apoptosis modulation and host immune response evasion, and provides a theoretical basis for research on preventing and controlling SVV infection.
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Affiliation(s)
- Xin-yu Zhang
- Institute of Virology, Wenzhou University, Wenzhou, China
| | - Yu-ying Li
- Institute of Virology, Wenzhou University, Wenzhou, China
| | - Hai-xin Huang
- Institute of Virology, Wenzhou University, Wenzhou, China
- College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Chen-chen Zhao
- Institute of Virology, Wenzhou University, Wenzhou, China
| | - Xiao-xiao Lei
- Institute of Virology, Wenzhou University, Wenzhou, China
| | - Bao-peng Zhao
- Institute of Virology, Wenzhou University, Wenzhou, China
| | - Jing-yi Lu
- Institute of Virology, Wenzhou University, Wenzhou, China
| | - Tian Lan
- Institute of Virology, Wenzhou University, Wenzhou, China
| | - Wen-chao Sun
- Institute of Virology, Wenzhou University, Wenzhou, China
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17
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Li WW, Fan XX, Zhu ZX, Cao XJ, Zhu ZY, Pei DS, Wang YZ, Zhang JY, Wang YY, Zheng HX. Tyrosine phosphorylation of IRF3 by BLK facilitates its sufficient activation and innate antiviral response. PLoS Pathog 2023; 19:e1011742. [PMID: 37871014 PMCID: PMC10621992 DOI: 10.1371/journal.ppat.1011742] [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: 02/09/2023] [Revised: 11/02/2023] [Accepted: 10/09/2023] [Indexed: 10/25/2023] Open
Abstract
Viral infection triggers the activation of transcription factor IRF3, and its activity is precisely regulated for robust antiviral immune response and effective pathogen clearance. However, how full activation of IRF3 is achieved has not been well defined. Herein, we identified BLK as a key kinase that positively modulates IRF3-dependent signaling cascades and executes a pre-eminent antiviral effect. BLK deficiency attenuates RNA or DNA virus-induced ISRE activation, interferon production and the cellular antiviral response in human and murine cells, whereas overexpression of BLK has the opposite effects. BLK-deficient mice exhibit lower serum cytokine levels and higher lethality after VSV infection. Moreover, BLK deficiency impairs the secretion of downstream antiviral cytokines and promotes Senecavirus A (SVA) proliferation, thereby supporting SVA-induced oncolysis in an in vivo xenograft tumor model. Mechanistically, viral infection triggers BLK autophosphorylation at tyrosine 309. Subsequently, activated BLK directly binds and phosphorylates IRF3 at tyrosine 107, which further promotes TBK1-induced IRF3 S386 and S396 phosphorylation, facilitating sufficient IRF3 activation and downstream antiviral response. Collectively, our findings suggest that targeting BLK enhances viral clearance via specifically regulating IRF3 phosphorylation by a previously undefined mechanism.
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Affiliation(s)
- Wei-Wei Li
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, China
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
| | - Xu-Xu Fan
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
| | - Zi-Xiang Zhu
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
| | - Xue-Jing Cao
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
| | - Zhao-Yu Zhu
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
| | - Dan-Shi Pei
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
| | - Yi-Zhuo Wang
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
| | - Ji-Yan Zhang
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
| | - Yan-Yi Wang
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, China
| | - Hai-Xue Zheng
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, China
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Zhang D, Ji L, Chen X, He Y, Sun Y, Ji L, Zhang T, Shen Q, Wang X, Wang Y, Yang S, Zhang W, Zhou C. SARS-CoV-2 Nsp15 suppresses type I interferon production by inhibiting IRF3 phosphorylation and nuclear translocation. iScience 2023; 26:107705. [PMID: 37680466 PMCID: PMC10480782 DOI: 10.1016/j.isci.2023.107705] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 06/23/2023] [Accepted: 08/21/2023] [Indexed: 09/09/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes 2019 coronavirus disease (COVID-19), poses a significant threat to global public health security. Like other coronaviruses, SARS-CoV-2 has developed various strategies to inhibit the production of interferon (IFN). Here, we have discovered that SARS-CoV-2 Nsp15 obviously reduces the expression of IFN-β and IFN-stimulated genes (ISG56, CXCL10), and also inhibits IRF3 phosphorylation and nuclear translocation by antagonizing the RLR-mediated antiviral signaling pathway. Mechanically, we found that the poly-U-specific endonuclease domain (EndoU) of Nsp15 directly associates with the kinase domain (KD) of TBK1 to interfere TBK1 interacting with IRF3 and the flowing TBK1-mediated IRF3 phosphorylation. Furthermore, Nsp15 also prevented nuclear translocation of phosphorylated IRF3 via binding to the nuclear import adaptor karyopherin α1 (KPNA1) and promoting it autophagy-dependent degradation. These findings collectively reveal a novel mechanism by which Nsp15 antagonizes host's innate immune response.
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Affiliation(s)
- Dianqi Zhang
- Clinical Laboratory Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou 225300, China
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
- Department of Clinical Laboratory, The Affiliated Yixing Hospital of Jiangsu University, Yixing, Jiangsu 214221, China
| | - Likai Ji
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xu Chen
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
- Department of Laboratory Medicine and Pathology, Jiangsu Provincial Corps Hospital of Chinese People’s Armed Police Force, Yangzhou, Jiangsu 225003, China
| | - Yumin He
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
- Medical Research Center, Northern Jiangsu People’s Hospital, Yangzhou, Jiangsu 225001, China
| | - Yijie Sun
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Li Ji
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Tiancheng Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Quan Shen
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiaochun Wang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yan Wang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Shixing Yang
- Clinical Laboratory Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou 225300, China
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Wen Zhang
- Clinical Laboratory Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou 225300, China
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Chenglin Zhou
- Clinical Laboratory Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou 225300, China
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Huang J, Chen Z, Ye Y, Shao Y, Zhu P, Li X, Ma Y, Xu F, Zhou J, Wu M, Gao X, Yang Y, Zhang J, Hao C. DTX3L Enhances Type I Interferon Antiviral Response by Promoting the Ubiquitination and Phosphorylation of TBK1. J Virol 2023; 97:e0068723. [PMID: 37255478 PMCID: PMC10308958 DOI: 10.1128/jvi.00687-23] [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: 05/07/2023] [Accepted: 05/11/2023] [Indexed: 06/01/2023] Open
Abstract
Studies already revealed that some E3 ubiquitin ligases participated in the immune response after viral infection by regulating the type I interferon (IFN) pathway. Here, we demonstrated that type I interferon signaling enhanced the translocation of ETS1 to the nucleus and the promoter activity of E3 ubiquitin ligase DTX3L (deltex E3 ubiquitin ligase 3L) after virus infection and thus increased the expression of DTX3L. Further experiments suggested that DTX3L ubiquitinated TBK1 at K30 and K401 sites on K63-linked ubiquitination pathway. DTX3L was also necessary for mediating the phosphorylation of TBK1 through binding with the tyrosine kinase SRC: both together enhanced the activation of TBK1. Therefore, DTX3L, being an important positive-feedback regulator of type I interferon, exerted a key role in antiviral response. IMPORTANCE Our present study evaluated DTX3L as an antiviral molecule by promoting IFN production and establishing an IFN-β-ETS1-DTX3L-TBK1 positive-feedback loop as a novel immunomodulatory step to enhance interferon signaling and inhibit respiratory syncytial virus (RSV) infection. Our finding enriches and complements the biological function of DTX3L and provides a new strategy to protect against lung diseases such as bronchiolitis and pneumonia that develop with RSV.
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Affiliation(s)
- Jiaqi Huang
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Zhengrong Chen
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Yunfei Ye
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Yu Shao
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Peijie Zhu
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Xiaoping Li
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
- Reproductive Medicine Center, the First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Yu Ma
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Fei Xu
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Ji Zhou
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Mengyun Wu
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Xiu Gao
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Yi Yang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Jinping Zhang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Chuangli Hao
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, People's Republic of China
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20
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Tian Y, Tian B, Wang M, Cai D, Cheng A, Zhang W, Wu Y, Yang Q, Ou X, Sun D, Zhang S, Mao S, Zhao X, Huang J, Gao Q, Zhu D, Jia R, Chen S, Liu M. BX795, a kinase inhibitor, inhibit duck plague virus infection via targeting US3 kinase. Poult Sci 2023; 102:102597. [PMID: 36931072 PMCID: PMC10027563 DOI: 10.1016/j.psj.2023.102597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
Duck plague virus (DPV) is a typical DNA virus of waterfowl, it causes huge economic losses to the duck industry due to the higher mortality and lower egg production. The disease is one of the frequent epidemics and outbreaks on duck farms because present vaccines could not provide complete immunity and there are no specific antiviral drugs available. Therefore, the development of antiviral drugs is urgently needed. In this study, we evaluated the antiviral activity of BX795, a specific kinase inhibitor of 3-phosphoinositide-dependent kinase 1 (PDK1), protein kinase B (AKT) and Tank binding kinase 1 (TBK1), against DPV in different duck cells. Our study demonstrated that BX795 reveals prominent antiviral activity in a dose-dependent manner in different types of duck cells. Time-addition and antiviral duration analysis uncovered that BX795 inhibits viral infection therapeutically and its antiviral activity lasts longer than 96 h. Further studies have shown that BX795 prevents cell-to-cell spread of the DPV rather than affects other stage of viral life cycle. Mechanistically, BX795 can inhibit DPV US3 kinase activity, reduce the phosphorylation of US3 substrates, and prevent the interaction between US3 and UL47. Taking together, our study demonstrated BX795, which disrupts the viral kinase activity, is a candidate antiviral agent for DPV.
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Affiliation(s)
- Yanming Tian
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Bin Tian
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Mingshu Wang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Dongjie Cai
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Anchun Cheng
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China.
| | - Wei Zhang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu City, Sichuan 611130, PR China
| | - Ying Wu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Qiao Yang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Xuming Ou
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Di Sun
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Shaqiu Zhang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Sai Mao
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - XinXin Zhao
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Juan Huang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Qun Gao
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Dekang Zhu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Renyong Jia
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Shun Chen
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
| | - Mafeng Liu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu City, Sichuan 611130, PR China
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21
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Garcia-Garcia J, Berge AKM, Overå KS, Larsen KB, Bhujabal Z, Brech A, Abudu YP, Lamark T, Johansen T, Sjøttem E. TRIM27 is an autophagy substrate facilitating mitochondria clustering and mitophagy via phosphorylated TBK1. FEBS J 2023; 290:1096-1116. [PMID: 36111389 DOI: 10.1111/febs.16628] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/02/2022] [Accepted: 09/15/2022] [Indexed: 11/30/2022]
Abstract
Tripartite motif-containing protein 27 (TRIM27/also called RFP) is a multifunctional ubiquitin E3 ligase involved in numerous cellular functions, such as proliferation, apoptosis, regulation of the NF-kB pathway, endosomal recycling and the innate immune response. TRIM27 interacts directly with TANK-binding kinase 1 (TBK1) and regulates its stability. TBK1 in complex with autophagy receptors is recruited to ubiquitin chains assembled on the mitochondrial outer membrane promoting mitophagy. Here, we identify TRIM27 as an autophagy substrate, depending on ATG7, ATG9 and autophagy receptors for its lysosomal degradation. We show that TRIM27 forms ubiquitylated cytoplasmic bodies that co-localize with autophagy receptors. Surprisingly, we observed that induced expression of EGFP-TRIM27 in HEK293 FlpIn TRIM27 knockout cells mediates mitochondrial clustering. TRIM27 interacts with autophagy receptor SQSTM1/p62, and the TRIM27-mediated mitochondrial clustering is facilitated by SQSTM/p62. We show that phosphorylated TBK1 is recruited to the clustered mitochondria. Moreover, induced mitophagy activity is reduced in HEK293 FlpIn TRIM27 knockout cells, while re-introduction of EGFP-TRIM27 completely restores the mitophagy activity. Inhibition of TBK1 reduces mitophagy in HEK293 FlpIn cells and in the reconstituted EGFP-TRIM27-expressing cells, but not in HEK293 FlpIn TRIM27 knockout cells. Altogether, these data reveal novel roles for TRIM27 in mitophagy, facilitating mitochondrial clustering via SQSTM1/p62 and mitophagy via stabilization of phosphorylated TBK1 on mitochondria.
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Affiliation(s)
- Juncal Garcia-Garcia
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Anne Kristin McLaren Berge
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Katrine Stange Overå
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Kenneth Bowitz Larsen
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Zambarlal Bhujabal
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Andreas Brech
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Norway
| | - Yakubu Princely Abudu
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Trond Lamark
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Terje Johansen
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
| | - Eva Sjøttem
- Department of Medical Biology, Autophagy Research Group, University of Tromsø -The Arctic University of Norway, Norway
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22
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Papageorgiou L, Mangana E, Papakonstantinou E, Diakou I, Pierouli K, Dragoumani K, Bacopoulou F, Chrousos GP, Exarchos TP, Vlamos P, Eliopoulos E, Vlachakis D. An Updated Evolutionary and Structural Study of TBK1 Reveals Highly Conserved Motifs as Potential Pharmacological Targets in Neurodegenerative Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1423:41-57. [PMID: 37525032 DOI: 10.1007/978-3-031-31978-5_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
TANK-binding kinase 1 protein (TBK1) is a kinase that belongs to the IκB (IKK) family. TBK1, also known as T2K, FTDALS4, NAK, IIAE8, and NF-κB, is responsible for the phosphorylation of the amino acid residues, serine and threonine. This enzyme is involved in various key biological processes, including interferon activation and production, homeostasis, cell growth, autophagy, insulin production, and the regulation of TNF-α, IFN-β, and IL-6. Mutations in the TBK1 gene alter the protein's normal function and may lead to an array of pathological conditions, including disorders of the central nervous system. The present study sought to elucidate the role of the TBK1 protein in amyotrophic lateral sclerosis (ALS), a human neurodegenerative disorder. A broad evolutionary and phylogenetic analysis of TBK1 was performed across numerous organisms to distinguish conserved regions important for the protein's function. Subsequently, mutations and SNPs were explored, and their potential effect on the enzyme's function was investigated. These analytical steps, in combination with the study of the secondary, tertiary, and quaternary structure of TBK1, enabled the identification of conserved motifs, which can function as novel pharmacological targets and inform therapeutic strategies for amyotrophic lateral sclerosis.
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Affiliation(s)
- Louis Papageorgiou
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, Greece
| | - Eleni Mangana
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, Greece
| | - Eleni Papakonstantinou
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, Greece
| | - Io Diakou
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, Greece
| | - Katerina Pierouli
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, Greece
| | - Konstantina Dragoumani
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, Greece
| | - Flora Bacopoulou
- University Research Institute of Maternal and Child Health & Precision Medicine, National and Kapodistrian University of Athens, "Aghia Sophia" Children's Hospital, Athens, Greece
| | - George P Chrousos
- University Research Institute of Maternal and Child Health & Precision Medicine, National and Kapodistrian University of Athens, "Aghia Sophia" Children's Hospital, Athens, Greece
| | - Themis P Exarchos
- Bioinformatics & Human Electrophysiology Laboratory, Department of Informatics, Ionian University, Corfu, Greece
| | - Panagiotis Vlamos
- Bioinformatics & Human Electrophysiology Laboratory, Department of Informatics, Ionian University, Corfu, Greece
| | - Elias Eliopoulos
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, Greece
| | - Dimitrios Vlachakis
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, Athens, Greece.
- University Research Institute of Maternal and Child Health & Precision Medicine, National and Kapodistrian University of Athens, "Aghia Sophia" Children's Hospital, Athens, Greece.
- Division of Endocrinology and Metabolism, Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece.
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23
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Chen S, Kong J, Wu S, Luo C, Shen J, Zhang Z, Zou J, Feng L. Targeting TBK1 attenuates ocular inflammation in uveitis by antagonizing NF-κB signaling. Clin Immunol 2023; 246:109210. [PMID: 36528252 DOI: 10.1016/j.clim.2022.109210] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/18/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Uveitis with complex pathogenesis is a kind of eye emergency involving refractory and blinding inflammation. Dysregulation of TANK binding kinase 1 (TBK1), which plays an important role in innate immunity, often leads to inflammatory diseases in various organs. However, the role of TBK1 in uveitis remains elusive. In this study, we identified that the mRNA expression level of TBK1 and its phosphorylation level were significantly increased in peripheral blood mononuclear cells (PBMCs) of patients with uveitis. Consistent with this, the expression of Tbk1 was elevated in the ocular tissues of uveitis rats and primary peritoneal macrophages while its phosphorylation levels, which present activation forms, were upregulated as well, accompanied by an increase in the level of nuclear factor-κB (NF-κB) and proinflammatory cytokines. In addition, inhibition of TBK1 may effectively reduce the inflammatory response of uveitis rats by blocking NF-κB entry into the nucleus and impeding the initiation of NLRP3 inflammasome- and caspase-1-mediated pyroptosis pathways.
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Affiliation(s)
- Si Chen
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, China; Department of ophthalmology, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai 201599, China
| | - Jinfeng Kong
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, China
| | - Shiying Wu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Department of Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; MOE Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Chenqi Luo
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, China
| | - Junhui Shen
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, China
| | - Zhaocai Zhang
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang 310009, China.
| | - Jian Zou
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, China; The Institute of Translational Medicine, Zhejiang University, Hangzhou 310029, China.
| | - Lei Feng
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, China.
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eIF4A3 Promotes RNA Viruses’ Replication by Inhibiting Innate Immune Responses. J Virol 2022; 96:e0151322. [PMID: 36314820 PMCID: PMC9683021 DOI: 10.1128/jvi.01513-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Production of type I IFN is pivotal for the cellular antiviral immunity. Virus infection leads to the activation of transcription factor IRF3 and subsequent production of type I IFN to eliminate viral infection.
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25
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He J, Hu S, Xie Y, Wei Y, Zhang Q, Pi X, Qi Z. Molecular characterization and expression analysis of TRIF, TRAF6, and TBK1 of golden pompano (Trachinotus ovatus). FISH & SHELLFISH IMMUNOLOGY 2022; 127:604-610. [PMID: 35809882 DOI: 10.1016/j.fsi.2022.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/28/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Toll/IL-1R domain-containing adaptor-inducing IFN-β (TRIF), tumor necrosis factor receptor-associated factor 6 (TRAF6) and TANK-binding kinase 1 (TBK1) are critical signal transducers in toll-like receptors (TLRs) signaling pathway. In the present study, TRIF, TRAF6 and TBK1 were characterized from golden pompano (Trachinotus ovatus), named as TroTRIF, TroTRAF6 and TroTBK1, respectively. The full cDNA length of TroTRIF, TroTRAF6 and TroTBK1 was 2297 bp, 2293 bp, and 2482 bp, which respectively encoded 589, 573 and 723 amino acids. The deduced amino acids sequences of TroTRIF, TroTRAF6 and TroTBK1 contained conserved motifs, similar to their counterparts in other vertebrates. Phylogenetic tree analysis revealed that TroTRIF, TroTRAF6 and TroTBK1 were well clustered with their counterparts in other fish species. Quantitative Real-Time PCR (qPCR) analysis showed that TroTRIF, TroTBK1 and TroTRAF6 were detected in all examined tissues of healthy fish, but shared distinct transcript levels. Moreover, the expressions of TroTRIF, TroTBK1 and TroTRAF6 were generally induced by polyriboinosinic-polyribocytidylic acid (polyI:C), lipopolysaccharide (LPS), and Vibrio alginolyticus stimulation in vivo, indicating their critical roles in the immune defense of golden pompano against pathogen invasion. Our results provide valuable information for understanding the functions of these genes in golden pompano.
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Affiliation(s)
- Jinquan He
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi Autonomous Region, 530004, China
| | - Shu Hu
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi Autonomous Region, 530004, China
| | - Yushuai Xie
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi Autonomous Region, 530004, China
| | - Youchuan Wei
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi Autonomous Region, 530004, China.
| | - Qihuan Zhang
- Jiangsu Key Laboratory of Biochemistry and Biotechnology of Marine Wetland, Yancheng Institute of Technology, Yancheng, Jiangsu Province, 224051, China
| | - Xiangyu Pi
- Jiangsu Key Laboratory of Biochemistry and Biotechnology of Marine Wetland, Yancheng Institute of Technology, Yancheng, Jiangsu Province, 224051, China
| | - Zhitao Qi
- Jiangsu Key Laboratory of Biochemistry and Biotechnology of Marine Wetland, Yancheng Institute of Technology, Yancheng, Jiangsu Province, 224051, China.
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26
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Runde AP, Mack R, S J PB, Zhang J. The role of TBK1 in cancer pathogenesis and anticancer immunity. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:135. [PMID: 35395857 PMCID: PMC8994244 DOI: 10.1186/s13046-022-02352-y] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 03/29/2022] [Indexed: 02/07/2023]
Abstract
The TANK-binding kinase 1 (TBK1) is a serine/threonine kinase belonging to the non-canonical inhibitor of nuclear factor-κB (IκB) kinase (IKK) family. TBK1 can be activated by pathogen-associated molecular patterns (PAMPs), inflammatory cytokines, and oncogenic kinases, including activated K-RAS/N-RAS mutants. TBK1 primarily mediates IRF3/7 activation and NF-κB signaling to regulate inflammatory cytokine production and the activation of innate immunity. TBK1 is also involved in the regulation of several other cellular activities, including autophagy, mitochondrial metabolism, and cellular proliferation. Although TBK1 mutations have not been reported in human cancers, aberrant TBK1 activation has been implicated in the oncogenesis of several types of cancer, including leukemia and solid tumors with KRAS-activating mutations. As such, TBK1 has been proposed to be a feasible target for pharmacological treatment of these types of cancer. Studies suggest that TBK1 inhibition suppresses cancer development not only by directly suppressing the proliferation and survival of cancer cells but also by activating antitumor T-cell immunity. Several small molecule inhibitors of TBK1 have been identified and interrogated. However, to this point, only momelotinib (MMB)/CYT387 has been evaluated as a cancer therapy in clinical trials, while amlexanox (AMX) has been evaluated clinically for treatment of type II diabetes, nonalcoholic fatty liver disease, and obesity. In this review, we summarize advances in research into TBK1 signaling pathways and regulation, as well as recent studies on TBK1 in cancer pathogenesis. We also discuss the potential molecular mechanisms of targeting TBK1 for cancer treatment. We hope that our effort can help to stimulate the development of novel strategies for targeting TBK1 signaling in future approaches to cancer therapy.
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Affiliation(s)
- Austin P Runde
- Department of Cancer Biology, Oncology Institute, Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, IL, 60153, USA
| | - Ryan Mack
- Department of Cancer Biology, Oncology Institute, Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, IL, 60153, USA
| | - Peter Breslin S J
- Department of Cancer Biology, Oncology Institute, Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, IL, 60153, USA.,Departments of Molecular/Cellular Physiology and Biology, Loyola University Medical Center and Loyola University Chicago, Chicago, IL, 60660, USA
| | - Jiwang Zhang
- Department of Cancer Biology, Oncology Institute, Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, IL, 60153, USA. .,Departments of Pathology and Radiation Oncology, Loyola University Medical Center, Maywood, IL, 60153, USA.
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27
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Al Hamrashdi M, Brady G. Regulation of IRF3 activation in Human Antiviral Signalling Pathways. Biochem Pharmacol 2022; 200:115026. [PMID: 35367198 DOI: 10.1016/j.bcp.2022.115026] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 12/24/2022]
Abstract
The interferon regulatory factor (IRF) family of transcription factors play a vital role in the human innate antiviral immune responses with production of interferons (IFNs) as a hallmark outcome of activation. In recent years, IRF3 has been considered a principal early regulator of type I IFNs (TI-IFNs) directly downstream of intracellular virus sensing. Despite decades of research on IRF-activating pathways, many questions remain on the regulation of IRF3 activation. The kinases IκB kinase epsilon (IKKε) and TANK-binding kinase-1 (TBK1) and the scaffold proteins TRAF family member-associated NF-kappa-B activator (TANK), NF-kappa-B-activating kinase-associated protein 1 (NAP1) and TANK-binding kinase 1-binding protein 1 (TBKBP1)/similar to NAP1 TBK1 adaptor (SINTBAD) are believed to be core components of an IRF3-activation complex yet their contextual involvement and complex composition are still unclear. This review will give an overview of antiviral signaling pathways leading to the activation of IRF3 and discuss recent developments in our understanding of its proximal regulation.
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Affiliation(s)
- Mariya Al Hamrashdi
- Trinity Translational Medicine Institute, Trinity College Dublin, St. James' Hospital Campus, Dublin, Ireland.
| | - Gareth Brady
- Trinity Translational Medicine Institute, Trinity College Dublin, St. James' Hospital Campus, Dublin, Ireland.
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Ahmed Z, Renart EG, Zeeshan S. Investigating underlying human immunity genes, implicated diseases and their relationship to COVID-19. Per Med 2022; 19:229-250. [PMID: 35261286 PMCID: PMC8919975 DOI: 10.2217/pme-2021-0132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Aim: A human immunogenetics variation study was conducted in samples collected from diverse COVID-19 populations. Materials & methods: Whole-genome and whole-exome sequencing (WGS/WES), data processing, analysis and visualization pipeline were applied to identify variants associated with genes of interest. Results: A total of 2886 mutations were found across the entire set of 13 genomes. Functional annotation of the gene variants revealed mutation type and protein change. Many variants were found to be biologically implicated in COVID-19. The involvement of these genes was also found in multiple other diseases. Conclusion: The analysis determined that ACE2, TMPRSS4, TMPRSS2, SLC6A20 and FYCOI had functional implications and TMPRSS4 was the gene most altered in virally infected patients. The quest to establish an understanding of the genetics underlying COVID-19 is a central focus of life sciences today. COVID-19 is triggered by SARS-CoV-2, a single-stranded RNA respiratory virus. Several clinical-genomics studies have emerged positing different human gene mutations occurring due to COVID-19. A global analysis of these genes was conducted targeting major components of the immune system to identify possible variations likely to be involved in COVID-19 predisposition. Gene-variant analysis was performed on whole-genome sequencing samples collected from diverse populations. ACE2, TMPRSS4, TMPRSS2, SLC6A20 and FYCOI were found to have functional implications and TMPRSS4 may have a role in the severity of clinical manifestations of COVID-19.
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Affiliation(s)
- Zeeshan Ahmed
- Rutgers Institute for Health, Health Care Policy & Aging Research, Rutgers University, 112 Paterson Street, New Brunswick, NJ 08901, USA.,Department of Medicine, Robert Wood Johnson Medical School, Rutgers Biomedical & Health Sciences, 125 Paterson Street, New Brunswick, NJ 08901, USA
| | - Eduard Gibert Renart
- Rutgers Institute for Health, Health Care Policy & Aging Research, Rutgers University, 112 Paterson Street, New Brunswick, NJ 08901, USA
| | - Saman Zeeshan
- Rutgers Cancer Institute of New Jersey, Rutgers University, 195 Little Albany St, New Brunswick, NJ 08901, USA
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29
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Gong L, Ou X, Hu L, Zhong J, Li J, Deng S, Li B, Pan L, Wang L, Hong X, Luo W, Zeng Q, Zan J, Peng T, Cai M, Li M. The Molecular Mechanism of Herpes Simplex Virus 1 UL31 in Antagonizing the Activity of IFN-β. Microbiol Spectr 2022; 10:e0188321. [PMID: 35196784 PMCID: PMC8865407 DOI: 10.1128/spectrum.01883-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/11/2022] [Indexed: 11/20/2022] Open
Abstract
Virus infection triggers intricate signal cascade reactions to activate the host innate immunity, which leads to the production of type I interferon (IFN-I). Herpes simplex virus 1 (HSV-1), a human-restricted pathogen, is capable of encoding over 80 viral proteins, and several of them are involved in immune evasion to resist the host antiviral response through the IFN-I signaling pathway. Here, we determined that HSV-1 UL31, which is associated with nuclear matrix and is essential for the formation of viral nuclear egress complex, could inhibit retinoic acid-inducible gene I (RIG-I)-like receptor pathway-mediated interferon beta (IFN-β)-luciferase (Luc) and (PRDIII-I)4-Luc (an expression plasmid of IFN-β positive regulatory elements III and I) promoter activation, as well as the mRNA transcription of IFN-β and downstream interferon-stimulated genes (ISGs), such as ISG15, ISG54, ISG56, etc., to promote viral infection. UL31 was shown to restrain IFN-β activation at the interferon regulatory factor 3 (IRF3)/IRF7 level. Mechanically, UL31 was demonstrated to interact with TANK binding kinase 1 (TBK1), inducible IκB kinase (IKKi), and IRF3 to impede the formation of the IKKi-IRF3 complex but not the formation of the IRF7-related complex. UL31 could constrain the dimerization and nuclear translocation of IRF3. Although UL31 was associated with the CREB binding protein (CBP)/p300 coactivators, it could not efficiently hamper the formation of the CBP/p300-IRF3 complex. In addition, UL31 could facilitate the degradation of IKKi and IRF3 by mediating their K48-linked polyubiquitination. Taken together, these results illustrated that UL31 was able to suppress IFN-β activity by inhibiting the activation of IKKi and IRF3, which may contribute to the knowledge of a new immune evasion mechanism during HSV-1 infection. IMPORTANCE The innate immune system is the first line of host defense against the invasion of pathogens. Among its mechanisms, IFN-I is an essential cytokine in the antiviral response, which can help the host eliminate a virus. HSV-1 is a double-stranded DNA virus that can cause herpes and establish a lifelong latent infection, due to its possession of multiple mechanisms to escape host innate immunity. In this study, we illustrate for the first time that the HSV-1-encoded UL31 protein has a negative regulatory effect on IFN-β production by blocking the dimerization and nuclear translocation of IRF3, as well as promoting the K48-linked polyubiquitination and degradation of both IKKi and IRF3. This study may be helpful for fully understanding the pathogenesis of HSV-1.
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Affiliation(s)
- Lan Gong
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiaowen Ou
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Li Hu
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jiayi Zhong
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jingjing Li
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
- Jinming Yu Academician Workstation of Oncology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Shenyu Deng
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Bolin Li
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Lingxia Pan
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Liding Wang
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xuejun Hong
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wenqi Luo
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Qiyuan Zeng
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jie Zan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, Guangdong, China
| | - Tao Peng
- State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Mingsheng Cai
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Meili Li
- State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology; Department of Pathogenic Biology and Immunology, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
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30
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Banerjee D, Langberg K, Abbas S, Odermatt E, Yerramothu P, Volaric M, Reidenbach MA, Krentz KJ, Rubinstein CD, Brautigan DL, Abbas T, Gelfand BD, Ambati J, Kerur N. A non-canonical, interferon-independent signaling activity of cGAMP triggers DNA damage response signaling. Nat Commun 2021; 12:6207. [PMID: 34707113 PMCID: PMC8551335 DOI: 10.1038/s41467-021-26240-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 09/24/2021] [Indexed: 12/17/2022] Open
Abstract
Cyclic guanosine monophosphate-adenosine monophosphate (cGAMP), produced by cyclic GMP-AMP synthase (cGAS), stimulates the production of type I interferons (IFN). Here we show that cGAMP activates DNA damage response (DDR) signaling independently of its canonical IFN pathways. Loss of cGAS dampens DDR signaling induced by genotoxic insults. Mechanistically, cGAS activates DDR in a STING-TBK1-dependent manner, wherein TBK1 stimulates the autophosphorylation of the DDR kinase ATM, with the consequent activation of the CHK2-p53-p21 signal transduction pathway and the induction of G1 cell cycle arrest. Despite its stimulatory activity on ATM, cGAMP suppresses homology-directed repair (HDR) through the inhibition of polyADP-ribosylation (PARylation), in which cGAMP reduces cellular levels of NAD+; meanwhile, restoring NAD+ levels abrogates cGAMP-mediated suppression of PARylation and HDR. Finally, we show that cGAMP also activates DDR signaling in invertebrate species lacking IFN (Crassostrea virginica and Nematostella vectensis), suggesting that the genome surveillance mechanism of cGAS predates metazoan interferon-based immunity.
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Affiliation(s)
- Daipayan Banerjee
- Aravind Medical Research Foundation, Madurai, 625020, India
- Center for Advanced Vision Science, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Kurt Langberg
- Center for Advanced Vision Science, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Salar Abbas
- Center for Advanced Vision Science, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Eric Odermatt
- Center for Advanced Vision Science, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Praveen Yerramothu
- Center for Advanced Vision Science, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Martin Volaric
- Department of Environmental Sciences, University of Virginia, Charlottesville, VA, USA
| | - Matthew A Reidenbach
- Department of Environmental Sciences, University of Virginia, Charlottesville, VA, USA
| | - Kathy J Krentz
- Genome Editing & Animal Models Core, University of Wisconsin Biotechnology Center, Madison, WI, USA
| | - C Dustin Rubinstein
- Genome Editing & Animal Models Core, University of Wisconsin Biotechnology Center, Madison, WI, USA
| | - David L Brautigan
- Center for Cell Signaling, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Tarek Abbas
- Department of Radiation Oncology, University of Virginia, Charlottesville, VA, USA
| | - Bradley D Gelfand
- Center for Advanced Vision Science, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Biomedical Engineering, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Jayakrishna Ambati
- Center for Advanced Vision Science, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, VA, USA
- Department of Pathology, University of Virginia, Charlottesville, VA, USA
| | - Nagaraj Kerur
- Center for Advanced Vision Science, University of Virginia School of Medicine, Charlottesville, VA, USA.
- Department of Ophthalmology, University of Virginia School of Medicine, Charlottesville, VA, USA.
- Carter Immunology Center, University of Virginia School of Medicine, Charlottesville, VA, USA.
- Department of Ophthalmology and Visual Sciences, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
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31
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Stimulus-specific responses in innate immunity: Multilayered regulatory circuits. Immunity 2021; 54:1915-1932. [PMID: 34525335 DOI: 10.1016/j.immuni.2021.08.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 03/07/2021] [Accepted: 08/16/2021] [Indexed: 12/24/2022]
Abstract
Immune sentinel cells initiate immune responses to pathogens and tissue injury and are capable of producing highly stimulus-specific responses. Insight into the mechanisms underlying such specificity has come from the identification of regulatory factors and biochemical pathways, as well as the definition of signaling circuits that enable combinatorial and temporal coding of information. Here, we review the multi-layered molecular mechanisms that underlie stimulus-specific gene expression in macrophages. We categorize components of inflammatory and anti-pathogenic signaling pathways into five layers of regulatory control and discuss unifying mechanisms determining signaling characteristics at each layer. In this context, we review mechanisms that enable combinatorial and temporal encoding of information, identify recurring regulatory motifs and principles, and present strategies for integrating experimental and computational approaches toward the understanding of signaling specificity in innate immunity.
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32
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Evasion of the Host Immune Response by Betaherpesviruses. Int J Mol Sci 2021; 22:ijms22147503. [PMID: 34299120 PMCID: PMC8306455 DOI: 10.3390/ijms22147503] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/11/2021] [Accepted: 07/12/2021] [Indexed: 02/07/2023] Open
Abstract
The human immune system boasts a diverse array of strategies for recognizing and eradicating invading pathogens. Human betaherpesviruses, a highly prevalent subfamily of viruses, include human cytomegalovirus (HCMV), human herpesvirus (HHV) 6A, HHV-6B, and HHV-7. These viruses have evolved numerous mechanisms for evading the host response. In this review, we will highlight the complex interplay between betaherpesviruses and the human immune response, focusing on protein function. We will explore methods by which the immune system first responds to betaherpesvirus infection as well as mechanisms by which viruses subvert normal cellular functions to evade the immune system and facilitate viral latency, persistence, and reactivation. Lastly, we will briefly discuss recent advances in vaccine technology targeting betaherpesviruses. This review aims to further elucidate the dynamic interactions between betaherpesviruses and the human immune system.
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33
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Alam M, Hasan GM, Hassan MI. A review on the role of TANK-binding kinase 1 signaling in cancer. Int J Biol Macromol 2021; 183:2364-2375. [PMID: 34111484 DOI: 10.1016/j.ijbiomac.2021.06.022] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/19/2021] [Accepted: 06/03/2021] [Indexed: 02/06/2023]
Abstract
TANK-binding kinase 1 (TBK1) regulates various biological processes including, NF-κB signaling, immune response, autophagy, cell division, Ras-mediated oncogenesis, and AKT pro-survival signaling. Enhanced TBK1 activity is associated with autoimmune diseases and cancer, suggesting its role in therapeutic targeting of interferonopathies. In addition, dysregulation of TBK1 activity promotes several inflammatory disorders and oncogenesis. Structural and biochemical study reports provide the molecular process of TBK1 activation and recap the substrate selection about TBK1. This review summarizes recent findings on the molecular mechanisms by which TBK1 is involved in cancer signaling. The IKK-ε and TBK1 are together associated with inflammatory diseases by inducing type I IFNs. Furthermore, TBK1 signaling regulates radiation-induced epithelial-mesenchymal transition by controlling phosphorylation of GSK-3β and expression of Zinc finger E-box-binding homeobox 1, suggesting, TBK1 could be targeted for radiotherapy-induced metastasis therapy. Despite a considerable increase in the list of TBK1 inhibitors, only a few has potential to control cancer. Among them, a compound BX795 is considered a potent and selective inhibitor of TBK1. We discussed the therapeutic potential of small-molecule inhibitors of TBK1, particularly those with high selectivity, which will enable further exploration in the therapeutic management of cancer and inflammatory diseases.
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Affiliation(s)
- Manzar Alam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Gulam Mustafa Hasan
- Department of Biochemistry, College of Medicine, Prince Sattam Bin Abdulaziz University, PO Box 173, Al-Kharj 11942, Saudi Arabia
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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Wang B, Zhou M, Lin Y, Ma Y, Cao H. TBK1 regulates the induction of innate immune response against GCRV by phosphorylating IRF3 in rare minnow (Gobiocypris rarus). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 115:103883. [PMID: 33045274 DOI: 10.1016/j.dci.2020.103883] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/06/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
Rare minnow (Gobiocypris rarus), a small cyprinid species that is highly sensitive to the grass carp reovirus (GCRV), is regarded as an ideal model to study the mechanisms of innate immunity in fish. In the present study, a TBK1 homologue from rare minnow (GrTBK1) was identified and its roles in defence against viral infection were investigated. Sequence analysis showed that GrTBK1 encoded a 727-amino acid peptide which shared 98% and 72% identity to the black carp (Mylopharyngodon piceus) and human (Homo sapiens) orthologues, respectively. The amino acid sequence analysis demonstrated that GrTBK1 contains a conserved Serine/Threonine protein kinases catalytic domain (S_TKc) at the N-terminus. Furthermore, cellular distribution proved that GrTBK1 was located in the cytoplasm region. Quantitative real-time PCR analysis revealed that GrTBK1 was ubiquitously expressed in all examined organs, but especially highly in liver. Temporal expression analysis in vivo showed that the expression levels of GrTBK1 were obviously up-regulated in response to GCRV infection. Meanwhile, qRT-PCR assay revealed that the levels of S7 RNA, an important segment of GCRV genome, were higher in the liver than in other tissues. This indicates that GrTBK1 might play a crucial role in responses to GCRV infection in fish. In addition, GrTBK1 activated several type I interferon (IFN) promoters and induced the expression of downstream type I IFN-stimulated genes (ISGs). Furthermore, GrTBK1 obviously phosphorylated the interferon regulatory factor 3 (IRF3). Furthermore, overexpression of GrTBK1 remarkably decreased the GCRV proliferation. In summary, we systematically characterized GrTBK1 and illustrated its role in the innate immune response to GCRV infections.
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Affiliation(s)
- Bing Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Man Zhou
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yusheng Lin
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuegang Ma
- Chongqing Fishery Sciences Research Institute, Chongqing, 400020, China
| | - Hong Cao
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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Lannoy V, Côté-Biron A, Asselin C, Rivard N. Phosphatases in toll-like receptors signaling: the unfairly-forgotten. Cell Commun Signal 2021; 19:10. [PMID: 33494775 PMCID: PMC7829650 DOI: 10.1186/s12964-020-00693-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/01/2020] [Indexed: 02/07/2023] Open
Abstract
Over the past 2 decades, pattern recognition receptors (PRRs) have been shown to be on the front line of many illnesses such as autoimmune, inflammatory, and neurodegenerative diseases as well as allergies and cancer. Among PRRs, toll-like receptors (TLRs) are the most studied family. Dissecting TLRs signaling turned out to be advantageous to elaborate efficient treatments to cure autoimmune and chronic inflammatory disorders. However, a broad understanding of TLR effectors is required to propose a better range of cures. In addition to kinases and E3 ubiquitin ligases, phosphatases emerge as important regulators of TLRs signaling mediated by NF-κB, type I interferons (IFN I) and Mitogen-Activated Protein Kinases signaling pathways. Here, we review recent knowledge on TLRs signaling modulation by different classes and subclasses of phosphatases. Thus, it becomes more and more evident that phosphatases could represent novel therapeutic targets to control pathogenic TLRs signaling. Video Abstract.
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Affiliation(s)
- Valérie Lannoy
- Department of Immunology and Cell Biology, Cancer Research Pavilion, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3201, rue Jean Mignault, Sherbrooke, QC, J1E4K8, Canada
| | - Anthony Côté-Biron
- Department of Immunology and Cell Biology, Cancer Research Pavilion, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3201, rue Jean Mignault, Sherbrooke, QC, J1E4K8, Canada
| | - Claude Asselin
- Department of Immunology and Cell Biology, Cancer Research Pavilion, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3201, rue Jean Mignault, Sherbrooke, QC, J1E4K8, Canada
| | - Nathalie Rivard
- Department of Immunology and Cell Biology, Cancer Research Pavilion, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3201, rue Jean Mignault, Sherbrooke, QC, J1E4K8, Canada.
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Lv Y, Deng H, Liu Y, Chang K, Du H, Zhou P, Mao H, Hu C. The tyrosine kinase SRC of grass carp (Ctenopharyngodon idellus) up-regulates the expression of IFN I by activating TANK binding kinase 1. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 114:103834. [PMID: 32827605 DOI: 10.1016/j.dci.2020.103834] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/12/2020] [Accepted: 08/12/2020] [Indexed: 02/07/2023]
Abstract
In response to viral infections, various pattern recognition receptors (PRRs) are activated for the production of type I interferon (IFN I). As a center of these receptor responses, TANK binding kinase-1 (TBK1) activates interferon regulatory factor 3 (IRF3). SRC is a member of Src family kinases (SFK) which participates in TBK1-mediated IFN I signaling pathway. In mammals, the immunological function of SRC is depended on its interaction with TBK1. To date, SRC has not been studied in fish. In this paper, we cloned the ORF of grass carp (Ctenopharyngodon idellus) SRC (CiSRC). CiSRC has a closer relationship with Sinocyclocheilus rhinocerous SRC (SrSRC). The expression level of CiSRC was significantly up-regulated following poly (I:C) stimulation in grass carp tissues and cells. Subcellular localization results showed that CiSRC is located both in the cytoplasm and nucleus, while CiTBK1 is only located in the cytoplasm of CIK cells. When GFP-CiSRC and FLAG-CiTBK1 were co-transfected into CIK cells, we found that they were co-localized in the cytoplasm. GST-pulldown and Co-immunoprecipitation analysis revealed that CiSRC and CiSRC tyrosine kinase domain deletion mutant (SRC-ΔTyrkc) can interact with CiTBK1, respectively. CiSRC promotes the phosphorylation of CiTBK1. Furthermore, the phosphorylation of TBK1 is more strongly under poly (I:C) stimulation. We also demonstrated that SRC can up-regulate IFN I expression. These results above unraveled that CiSRC initiates innate immune response by binding to and then up-regulating the phosphorylation of TBK1.
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Affiliation(s)
- Yangfeng Lv
- College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Hang Deng
- College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Yapeng Liu
- College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Kaile Chang
- College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Hailing Du
- College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Pengcheng Zhou
- College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Huiling Mao
- College of Life Science, Nanchang University, Nanchang, 330031, China.
| | - Chengyu Hu
- College of Life Science, Nanchang University, Nanchang, 330031, China.
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Li P, Zhu Z, Cao W, Yang F, Ma X, Tian H, Zhang K, Liu X, Zheng H. Dysregulation of the RIG-I-like Receptor Pathway Signaling by Peste des Petits Ruminants Virus Phosphoprotein. THE JOURNAL OF IMMUNOLOGY 2020; 206:566-579. [PMID: 33380495 DOI: 10.4049/jimmunol.2000432] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 11/15/2020] [Indexed: 12/17/2022]
Abstract
Peste des petits ruminants virus (PPRV) is a Morbillivirus that causes highly contagious and severe disease in various ruminants. PPRV infection leads to a severe inhibition of host antiviral immune response. Our previous study demonstrated that PPRV V protein blocks IFN response by targeting STAT proteins. In the current study, we identified the phosphoprotein (P) as a novel antagonistic factor of PPRV to counteract host antiviral innate immune response. PPRV P protein significantly suppressed RIG-I-like receptor pathway signaling and impaired IFN-β and ISGs expression by targeting IFN regulatory factor (IRF)3 in both human embryonic kidney 293T cells and primary goat fibroblasts. The 1-102 region of P protein was critical for the antagonistic function of P protein. P protein interacted with IRF association domain (IAD) of IRF3 to block the interaction between TBK1 and IRF3. The interaction between TBK1 and the IAD of IRF3 is responsible for triggering the phosphorylation of IRF3. P protein competed with TBK1 to bind to the IAD of IRF3 that contributed to the decreased phosphorylation of IRF3, which, in turn, interfered with the dimerization of IRF3 and blocked IRF3 nuclear transportation. Besides, we also found that P protein interacted with IRF5 and IRF8. However, the involved mechanism remains unknown. Taken together, our results reveal a novel mechanism by which PPRV P protein antagonizes host antiviral innate immune response by interacting with the transcription factor IRF3, thereby inhibiting the type I IFN production and promoting viral replication.
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Affiliation(s)
- Pengfei Li
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; and
| | - Zixiang Zhu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; and
| | - Weijun Cao
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; and
| | - Fan Yang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; and
| | - Xusheng Ma
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; and
| | - Hong Tian
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; and
| | - Keshan Zhang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; and
| | - Xiangtao Liu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; and.,National Foot and Mouth Diseases Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
| | - Haixue Zheng
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; and
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Huh JY, Reilly SM, Abu-Odeh M, Murphy AN, Mahata SK, Zhang J, Cho Y, Seo JB, Hung CW, Green CR, Metallo CM, Saltiel AR. TANK-Binding Kinase 1 Regulates the Localization of Acyl-CoA Synthetase ACSL1 to Control Hepatic Fatty Acid Oxidation. Cell Metab 2020; 32:1012-1027.e7. [PMID: 33152322 PMCID: PMC7710607 DOI: 10.1016/j.cmet.2020.10.010] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/20/2020] [Accepted: 10/12/2020] [Indexed: 12/12/2022]
Abstract
Hepatic TANK (TRAF family member associated NFκB activator)-binding kinase 1 (TBK1) activity is increased during obesity, and administration of a TBK1 inhibitor reduces fatty liver. Surprisingly, liver-specific TBK1 knockout in mice produces fatty liver by reducing fatty acid oxidation. TBK1 functions as a scaffolding protein to localize acyl-CoA synthetase long-chain family member 1 (ACSL1) to mitochondria, which generates acyl-CoAs that are channeled for β-oxidation. TBK1 is induced during fasting and maintained in the unphosphorylated, inactive state, enabling its high affinity binding to ACSL1 in mitochondria. In TBK1-deficient liver, ACSL1 is shifted to the endoplasmic reticulum to promote fatty acid re-esterification in lieu of oxidation in response to fasting, which accelerates hepatic lipid accumulation. The impaired fatty acid oxidation in TBK1-deficient hepatocytes is rescued by the expression of kinase-dead TBK1. Thus, TBK1 operates as a rheostat to direct the fate of fatty acids in hepatocytes, supporting oxidation when inactive during fasting and promoting re-esterification when activated during obesity.
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Affiliation(s)
- Jin Young Huh
- Department of Medicine, University of California, San Diego, San Diego, CA 92093, USA
| | - Shannon M Reilly
- Department of Medicine, University of California, San Diego, San Diego, CA 92093, USA
| | - Mohammad Abu-Odeh
- Department of Medicine, University of California, San Diego, San Diego, CA 92093, USA
| | - Anne N Murphy
- Department of Pharmacology, University of California, San Diego, San Diego, CA 92093, USA
| | - Sushil K Mahata
- Department of Medicine, University of California, San Diego, San Diego, CA 92093, USA; VA San Diego Healthcare System, San Diego, CA 92161, USA
| | - Jinyu Zhang
- Division of Biological Sciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Yoori Cho
- Division of Biological Sciences, University of California, San Diego, San Diego, CA 92093, USA
| | - Jong Bae Seo
- Department of Biosciences, Mokpo National University, Jeonnam 58554, Republic of Korea
| | - Chao-Wei Hung
- Department of Medicine, University of California, San Diego, San Diego, CA 92093, USA
| | - Courtney R Green
- Department of Bioengineering, University of California, San Diego, San Diego, CA 92093, USA
| | - Christian M Metallo
- Department of Bioengineering, University of California, San Diego, San Diego, CA 92093, USA
| | - Alan R Saltiel
- Department of Medicine, University of California, San Diego, San Diego, CA 92093, USA; Department of Pharmacology, University of California, San Diego, San Diego, CA 92093, USA.
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Revach OY, Liu S, Jenkins RW. Targeting TANK-binding kinase 1 (TBK1) in cancer. Expert Opin Ther Targets 2020; 24:1065-1078. [PMID: 32962465 PMCID: PMC7644630 DOI: 10.1080/14728222.2020.1826929] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 09/18/2020] [Indexed: 12/16/2022]
Abstract
INTRODUCTION TANK-binding kinase 1 (TBK1) is a Ser/Thr kinase with a central role in coordinating the cellular response to invading pathogens and regulating key inflammatory signaling cascades. While intact TBK1 signaling is required for successful anti-viral signaling, dysregulated TBK1 signaling has been linked to a variety of pathophysiologic conditions, including cancer. Several lines of evidence support a role for TBK1 in cancer pathogenesis, but the specific roles and regulation of TBK1 remain incompletely understood. A key challenge is the diversity of cellular processes that are regulated by TBK1, including inflammation, cell cycle, autophagy, energy homeostasis, and cell death. Nevertheless, evidence from pre-clinical cancer models suggests that targeting TBK1 may be an effective strategy for anti-cancer therapy in specific settings. AREAS COVERED This review provides an overview of the roles and regulation of TBK1 with a focus on cancer pathogenesis and drug targeting of TBK1 as an anti-cancer strategy. Relevant literature was derived from a PubMed search encompassing studies from 1999 to 2020. EXPERT OPINION TBK1 is emerging as a potential target for anti-cancer therapy. Inhibition of TBK1 alone may be insufficient to restrain the growth of most cancers; hence, combination strategies will likely be necessary. Improved understanding of tumor-intrinsic and tumor-extrinsic TBK1 signaling will inform novel therapeutic strategies.
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Affiliation(s)
- Or-yam Revach
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Shuming Liu
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Russell W. Jenkins
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA, USA
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Liu J, Huang Y, Kong L, Yu X, Feng B, Liu D, Zhao B, Mendes GC, Yuan P, Ge D, Wang WM, Fontes EPB, Li P, Shan L, He P. The malectin-like receptor-like kinase LETUM1 modulates NLR protein SUMM2 activation via MEKK2 scaffolding. NATURE PLANTS 2020; 6:1106-1115. [PMID: 32839517 PMCID: PMC7492416 DOI: 10.1038/s41477-020-0748-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 07/21/2020] [Indexed: 05/04/2023]
Abstract
The innate immune system detects pathogen-derived molecules via specialized immune receptors to prevent infections1-3. Plant immune receptors include cell surface-resident pattern recognition receptors (PRRs, including receptor-like kinases (RLKs)), and intracellular nucleotide-binding domain leucine-rich repeat proteins (NLRs). It remains enigmatic how RLK- and NLR-mediated signalling are connected. Disruption of an immune-activated MEKK1-MKK1/2-MPK4 MAPK cascade activates the NLR SUMM2 via the MAPK kinase kinase MEKK2, leading to autoimmunity4-9. To gain insights into the mechanisms underlying SUMM2 activation, we used an RNA interference-based genetic screen for mekk1 autoimmune suppressors and identified an uncharacterized malectin-like RLK, named LETUM1 (LET1), as a specific regulator of mekk1-mkk1/2-mpk4 autoimmunity via complexing with both SUMM2 and MEKK2. MEKK2 scaffolds LET1 and SUMM2 for protein stability and association, and counter-regulates the F-box protein CPR1-mediated SUMM2 ubiquitination and degradation, thereby regulating SUMM2 accumulation and activation. Our study indicates that malectin-like RLK LET1 senses the perturbance of cellular homoeostasis caused by the deficiency in immune-activated signalling and activates the NLR SUMM2-mediated autoimmunity via MEKK2 scaffolding.
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Affiliation(s)
- Jun Liu
- Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX, USA
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX, USA
| | - Yanyan Huang
- Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX, USA
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX, USA
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, P. R. China
| | - Liang Kong
- Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX, USA
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX, USA
| | - Xiao Yu
- Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX, USA
- Department of Plant Pathology & Microbiology, Texas A&M University, College Station, TX, USA
| | - Baomin Feng
- Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX, USA
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX, USA
| | - Derui Liu
- Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX, USA
- Department of Plant Pathology & Microbiology, Texas A&M University, College Station, TX, USA
| | - Baoyu Zhao
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX, USA
| | - Giselle C Mendes
- Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX, USA
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX, USA
- National Institute of Science and Technology in Plant-Pest Interactions and Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Peiguo Yuan
- Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX, USA
- Department of Plant Pathology & Microbiology, Texas A&M University, College Station, TX, USA
| | - Dongdong Ge
- Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX, USA
- Department of Plant Pathology & Microbiology, Texas A&M University, College Station, TX, USA
| | - Wen-Ming Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, P. R. China
| | - Elizabeth P B Fontes
- National Institute of Science and Technology in Plant-Pest Interactions and Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Pingwei Li
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX, USA
| | - Libo Shan
- Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX, USA
- Department of Plant Pathology & Microbiology, Texas A&M University, College Station, TX, USA
| | - Ping He
- Institute for Plant Genomics & Biotechnology, Texas A&M University, College Station, TX, USA.
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX, USA.
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Li Y, Jiang N, Mao Y, Zhang W, Xiao J, Wu X, Wu H. Chicken optineurin suppresses MDA5-mediated interferon β production. Poult Sci 2020; 100:9-18. [PMID: 33357711 PMCID: PMC7772672 DOI: 10.1016/j.psj.2020.08.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 06/21/2020] [Accepted: 08/15/2020] [Indexed: 12/19/2022] Open
Abstract
Chicken MDA5 (chMDA5), the essential accepted pattern recognition receptors for detecting cytoplasmic viral RNA in chicken, initiates interferon β (IFN-β) generation. However, there is an incomplete elucidation of regulating chMDA5-mediated IFN-β production. NEMO-related protein, optineurin, was identified as inhibitors of virus triggered IFN-β induction in human or mice. In this study, full length of chicken optineurin (chOPTN) was cloned from chicken embryo fibroblast, and its role in inhibiting IFN-β signaling pathway was further explored. Full-length chOPTN encodes 547 amino acids residues and contains unique LC3 interaction region and ubiquitin binding domain. Chicken optineurin mRNA and protein are widely expressed in different tissues, especially the heart, kidney, and bursal fabricius (BF). Overexpressed chOPTN not only inhibits poly I:C or homos-induced human IFN-β promoter activation in 293T cells but also suppresses poly I:C, infectious bursal disease virus (IBDV) genome double-strand RNA (dsRNA), and chMDA5-induced chicken IFN-β (chIFN-β) promoter activation. In addition, we first revealed that chOPTN negatively regulates chIFN-β production via inhibiting ubiquitination of chicken TBK1, which is dependent on the ubiquitin-binding domain of chOPTN. Moreover, chIFN-β stimulus, poly I:C, and IBDV genome dsRNA improve chOPTN expression. Endogenous chOPTN expression is also upregulated by IBDV infection in 293T, DF-1 cells, as well as in BF. Therefore, our results suggested that chOPTN plays an inhibition role of chMDA5-mediated chIFN-β signaling pathway in chicken cells.
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Affiliation(s)
- Yu Li
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, P. R. China; Jiangxi Provincial Key laboratory for Animal Science and Technology, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Ning Jiang
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, P. R. China; Jiangxi Provincial Key laboratory for Animal Science and Technology, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Yaqing Mao
- China Institute of Veterinary Drug Control (MOA Center for Veterinary Drug Evaluation), Beijing 100081, P. R. China
| | - Wenbo Zhang
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, P. R. China; Jiangxi Provincial Key laboratory for Animal Science and Technology, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Jing Xiao
- Department of Asset and Laboratory Management Division, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Xiangdong Wu
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, P. R. China; Jiangxi Provincial Key laboratory for Animal Science and Technology, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, P. R. China.
| | - Huansheng Wu
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, P. R. China; Jiangxi Provincial Key laboratory for Animal Science and Technology, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, P. R. China.
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Oosenbrug T, van de Graaff MJ, Haks MC, van Kasteren S, Ressing ME. An alternative model for type I interferon induction downstream of human TLR2. J Biol Chem 2020; 295:14325-14342. [PMID: 32796029 DOI: 10.1074/jbc.ra120.015283] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/10/2020] [Indexed: 11/06/2022] Open
Abstract
Surface-exposed Toll-like receptors (TLRs) such as TLR2 and TLR4 survey the extracellular environment for pathogens. TLR activation initiates the production of various cytokines and chemokines, including type I interferons (IFN-I). Downstream of TLR4, IFNβ secretion is only vigorously triggered in macrophages when the receptor undergoes endocytosis and switches signaling adaptor; surface TLR4 engagement predominantly induces proinflammatory cytokines via the signaling adaptor MyD88. It is unclear whether this dichotomy is generally applicable to other TLRs, cell types, or differentiation states. Here, we report that diverse TLR2 ligands induce an IFN-I response in human monocyte-like cells, but not in differentiated macrophages. This TLR2-dependent IFN-I signaling originates from the cell surface and depends on MyD88; it involves combined activation of the transcription factors IRF3 and NF-κB, driven by the kinases TBK1 and TAK1-IKKβ, respectively. TLR2-stimulated monocytes produced modest IFNβ levels that caused productive downstream signaling, reflected by STAT1 phosphorylation and expression of numerous interferon-stimulated genes. Our findings reveal that the outcome of TLR2 signaling includes an IFN-I response in human monocytes, which is lost upon macrophage differentiation, and differs mechanistically from IFN-I-induction through TLR4. These findings point to molecular mechanisms tailored to the differentiation state of a cell and the nature of receptors activated to control and limit TLR-triggered IFN-I responses.
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Affiliation(s)
- Timo Oosenbrug
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Michel J van de Graaff
- Department of Bio-organic Synthesis, Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Mariëlle C Haks
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | - Sander van Kasteren
- Department of Bio-organic Synthesis, Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Maaike E Ressing
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
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43
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Jena KK, Mehto S, Nath P, Chauhan NR, Sahu R, Dhar K, Das SK, Kolapalli SP, Murmu KC, Jain A, Krishna S, Sahoo BS, Chattopadhyay S, Rusten TE, Prasad P, Chauhan S, Chauhan S. Autoimmunity gene IRGM suppresses cGAS-STING and RIG-I-MAVS signaling to control interferon response. EMBO Rep 2020; 21:e50051. [PMID: 32715615 PMCID: PMC7507369 DOI: 10.15252/embr.202050051] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 06/27/2020] [Accepted: 07/02/2020] [Indexed: 12/25/2022] Open
Abstract
Activation of the type 1 interferon response is extensively connected to the pathogenesis of autoimmune diseases. Loss of function of Immunity Related GTPase M (IRGM) has also been associated to several autoimmune diseases, but its mechanism of action is unknown. Here, we found that IRGM is a master negative regulator of the interferon response. Several nucleic acid‐sensing pathways leading to interferon‐stimulated gene expression are highly activated in IRGM knockout mice and human cells. Mechanistically, we show that IRGM interacts with nucleic acid sensor proteins, including cGAS and RIG‐I, and mediates their p62‐dependent autophagic degradation to restrain interferon signaling. Further, IRGM deficiency results in defective mitophagy leading to the accumulation of defunct leaky mitochondria that release cytosolic DAMPs and mtROS. Hence, IRGM deficiency increases not only the levels of the sensors, but also those of the stimuli that trigger the activation of the cGAS‐STING and RIG‐I‐MAVS signaling axes, leading to robust induction of IFN responses. Taken together, this study defines the molecular mechanisms by which IRGM maintains interferon homeostasis and protects from autoimmune diseases.
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Affiliation(s)
- Kautilya Kumar Jena
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India.,School of Biotechnology, KIIT University, Bhubaneswar, India
| | - Subhash Mehto
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India
| | - Parej Nath
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India.,School of Biotechnology, KIIT University, Bhubaneswar, India
| | - Nishant Ranjan Chauhan
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India
| | - Rinku Sahu
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India
| | - Kollori Dhar
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India
| | - Saroj Kumar Das
- Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, India
| | | | - Krushna C Murmu
- Epigenetic and Chromatin Biology Unit, Institute of Life Sciences, Bhubaneswar, India
| | - Ashish Jain
- Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Sivaram Krishna
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India
| | | | - Soma Chattopadhyay
- Molecular Virology Lab, Department of Infectious Disease Biology, Institute of Life Sciences, Bhubaneswar, India
| | - Tor Erik Rusten
- Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Punit Prasad
- Epigenetic and Chromatin Biology Unit, Institute of Life Sciences, Bhubaneswar, India
| | | | - Santosh Chauhan
- Cell Biology and Infectious Diseases Unit, Institute of Life Sciences, Bhubaneswar, India
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44
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Zhang X, Bai XC, Chen ZJ. Structures and Mechanisms in the cGAS-STING Innate Immunity Pathway. Immunity 2020; 53:43-53. [PMID: 32668227 DOI: 10.1016/j.immuni.2020.05.013] [Citation(s) in RCA: 455] [Impact Index Per Article: 91.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/19/2020] [Accepted: 05/26/2020] [Indexed: 01/29/2023]
Abstract
Besides its role as the blueprint of life, DNA can also alert the cell to the presence of microbial pathogens as well as damaged or malignant cells. A major sensor of DNA that triggers the innate immune response is cyclic guanosine monophosphate (GMP)-adenosine monophosphate (AMP) (cGAMP) synthase (cGAS), which produces the second messenger cGAMP. cGAMP activates stimulator of interferon genes (STING), which activates a signaling cascade leading to the production of type I interferons and other immune mediators. Recent research has demonstrated an expanding role of the cGAS-cGAMP-STING pathway in many physiological and pathological processes, including host defense against microbial infections, anti-tumor immunity, cellular senescence, autophagy, and autoimmune and inflammatory diseases. Biochemical and structural studies have elucidated the mechanism of signal transduction in the cGAS pathway at the atomic resolution. This review focuses on the structural and mechanistic insights into the roles of cGAS and STING in immunity and diseases revealed by these recent studies.
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Affiliation(s)
- Xuewu Zhang
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Xiao-Chen Bai
- Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Zhijian J Chen
- Department of Molecular biology, University of Texas Southwestern Medical Center, Dallas, TX, USA; Center for Inflammation Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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45
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Shi X, Yokom AL, Wang C, Young LN, Youle RJ, Hurley JH. ULK complex organization in autophagy by a C-shaped FIP200 N-terminal domain dimer. J Cell Biol 2020; 219:e201911047. [PMID: 32516362 PMCID: PMC7337493 DOI: 10.1083/jcb.201911047] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/28/2020] [Accepted: 04/06/2020] [Indexed: 01/11/2023] Open
Abstract
The autophagy-initiating human ULK complex consists of the kinase ULK1/2, FIP200, ATG13, and ATG101. Hydrogen-deuterium exchange mass spectrometry was used to map their mutual interactions. The N-terminal 640 residues (NTD) of FIP200 interact with the C-terminal IDR of ATG13. Mutations in these regions abolish their interaction. Negative stain EM and multiangle light scattering showed that FIP200 is a dimer, while a single molecule each of the other subunits is present. The FIP200NTD is flexible in the absence of ATG13, but in its presence adopts the shape of the letter C ∼20 nm across. The ULK1 EAT domain interacts loosely with the NTD dimer, while the ATG13:ATG101 HORMA dimer does not contact the NTD. Cryo-EM of the NTD dimer revealed a structural similarity to the scaffold domain of TBK1, suggesting an evolutionary similarity between the autophagy-initiating TBK1 kinase and the ULK1 kinase complex.
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Affiliation(s)
- Xiaoshan Shi
- Department of Molecular and Cell Biology and California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA
| | - Adam L. Yokom
- Department of Molecular and Cell Biology and California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA
| | - Chunxin Wang
- Biochemistry Section, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Lindsey N. Young
- Department of Molecular and Cell Biology and California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA
| | - Richard J. Youle
- Biochemistry Section, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - James H. Hurley
- Department of Molecular and Cell Biology and California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA
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46
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Hoffpauir CT, Bell SL, West KO, Jing T, Wagner AR, Torres-Odio S, Cox JS, West AP, Li P, Patrick KL, Watson RO. TRIM14 Is a Key Regulator of the Type I IFN Response during Mycobacterium tuberculosis Infection. THE JOURNAL OF IMMUNOLOGY 2020; 205:153-167. [PMID: 32404352 DOI: 10.4049/jimmunol.1901511] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/20/2020] [Indexed: 01/05/2023]
Abstract
Tripartite motif-containing proteins (TRIMs) play a variety of recently described roles in innate immunity. Although many TRIMs regulate type I IFN expression following cytosolic nucleic acid sensing of viruses, their contribution to innate immune signaling and gene expression during bacterial infection remains largely unknown. Because Mycobacterium tuberculosis is an activator of cGAS-dependent cytosolic DNA sensing, we set out to investigate a role for TRIM proteins in regulating macrophage responses to M. tuberculosis In this study, we demonstrate that TRIM14, a noncanonical TRIM that lacks an E3 ubiquitin ligase RING domain, is a critical negative regulator of the type I IFN response in Mus musculus macrophages. We show that TRIM14 interacts with both cGAS and TBK1 and that macrophages lacking TRIM14 dramatically hyperinduce IFN stimulated gene (ISG) expression following M. tuberculosis infection, cytosolic nucleic acid transfection, and IFN-β treatment. Consistent with a defect in resolution of the type I IFN response, Trim14 knockout macrophages have more phospho-Ser754 STAT3 relative to phospho-Ser727 and fail to upregulate the STAT3 target Socs3, which is required to turn off IFNAR signaling. These data support a model whereby TRIM14 acts as a scaffold between TBK1 and STAT3 to promote phosphorylation of STAT3 at Ser727 and resolve ISG expression. Remarkably, Trim14 knockout macrophages hyperinduce expression of antimicrobial genes like Nos2 and are significantly better than control cells at limiting M. tuberculosis replication. Collectively, these data reveal an unappreciated role for TRIM14 in resolving type I IFN responses and controlling M. tuberculosis infection.
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Affiliation(s)
- Caitlyn T Hoffpauir
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, TX 77807
| | - Samantha L Bell
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, TX 77807
| | - Kelsi O West
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, TX 77807
| | - Tao Jing
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77807; and
| | - Allison R Wagner
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, TX 77807
| | - Sylvia Torres-Odio
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, TX 77807
| | - Jeffery S Cox
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA 94720
| | - A Phillip West
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, TX 77807
| | - Pingwei Li
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77807; and
| | - Kristin L Patrick
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, TX 77807
| | - Robert O Watson
- Department of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, TX 77807;
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47
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Zhong L, Hu MM, Bian LJ, Liu Y, Chen Q, Shu HB. Phosphorylation of cGAS by CDK1 impairs self-DNA sensing in mitosis. Cell Discov 2020; 6:26. [PMID: 32351706 PMCID: PMC7186227 DOI: 10.1038/s41421-020-0162-2] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 03/12/2020] [Indexed: 12/17/2022] Open
Abstract
The cyclic GMP-AMP synthase (cGAS) is a widely used DNA sensor, which detects cytosolic DNA species without a preference of self or non-self microbial DNA in interphase to initiate innate immune response. How cGAS is regulated to avoid self-DNA sensing upon nuclear envelope breakdown (NEBD) during mitosis remains enigmatic. Here we show that cGAS is mostly localized in the cytoplasm in interphase and rapidly translocated to chromosomes upon NEBD in mitosis. The major mitotic kinase CDK1-cyclin B complex phosphorylates human cGAS at S305 or mouse cGAS at S291, which inhibits its ability to synthesize cGAMP upon mitotic entry. The type 1 phosphatase PP1 dephosphorylates cGAS upon mitotic exit to enable its DNA sensing ability. Our findings reveal a mechanism on how the DNA sensor cGAS is post-translationally regulated by cell cycle-dependent enzymes to ensure its proper activation for host defense of cytosolic DNA in interphase and inert to self-DNA in mitosis.
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Affiliation(s)
- Li Zhong
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism Medical Research Institute, Wuhan University, Wuhan, 430071 China
| | - Ming-Ming Hu
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism Medical Research Institute, Wuhan University, Wuhan, 430071 China
| | - Li-Jun Bian
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism Medical Research Institute, Wuhan University, Wuhan, 430071 China
| | - Ying Liu
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism Medical Research Institute, Wuhan University, Wuhan, 430071 China
| | - Qiang Chen
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism Medical Research Institute, Wuhan University, Wuhan, 430071 China
| | - Hong-Bing Shu
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism Medical Research Institute, Wuhan University, Wuhan, 430071 China
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48
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Creed RB, Goldberg MS. Enhanced Susceptibility of PINK1 Knockout Rats to α-Synuclein Fibrils. Neuroscience 2020; 437:64-75. [PMID: 32353461 DOI: 10.1016/j.neuroscience.2020.04.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 04/19/2020] [Accepted: 04/20/2020] [Indexed: 12/31/2022]
Abstract
The main neuropathological hallmarks of Parkinson's disease (PD) are loss of dopaminergic neurons in the substantia nigra and intraneuronal protein aggregates immunoreactive for α-synuclein phosphorylated at serine 129 (pS129). Most cases of PD are idiopathic; however, genetic mutations have been identified in several genes linked to familial PD. Mutations in the gene encoding α-synuclein are causally linked to dominantly inherited forms of PD and mutations in the PTEN-induced kinase-1 (PINK1) gene are linked to recessively inherited forms of PD. Because abnormal α-synuclein protein aggregates appear spontaneously in PINK1 knockout (KO) rats, we hypothesize that PINK1-deficiency causes endogenous α-synuclein to be more prone to aggregation. α-Synuclein aggregation does not normally occur in mice or rats, however, it can be induced by intracranial injection of α-synuclein pre-formed fibrils (PFFs), which also induces loss of dopaminergic nigral neurons 3-6 months post-injection. Because PINK1-deficiency is linked to early-onset PD, we further hypothesize that PINK1 KO rats will show earlier PFF-induced neurodegeneration compared to wild-type (WT) rats. Herein, we report that intracranial injection of α-synuclein PFFs into the dorsal striatum induced more abundant pS129 α-synuclein in PINK1 KO rat brains compared to WT littermate controls. Moreover, the synuclein extracted from the brains of PFF-injected PINK1 KO rats was more insoluble compared to PFF-injected WT littermates, suggesting greater progression of α-synuclein pathology in PINK1 KO rats. Four weeks post-injection, PFFs caused significant loss of dopaminergic neurons in the substantia nigra of PINK1 KO rats, but not WT controls. Together, our results indicate that PINK1 deficiency increases vulnerability to α-synuclein aggregation and dopaminergic neurodegeneration in vivo.
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Affiliation(s)
- Rose B Creed
- Center for Neurodegeneration and Experimental Therapeutics, The University of Alabama at Birmingham, Birmingham, AL 35294, United States; Department of Neurology, The University of Alabama at Birmingham, Birmingham, AL 35294, United States
| | - Matthew S Goldberg
- Center for Neurodegeneration and Experimental Therapeutics, The University of Alabama at Birmingham, Birmingham, AL 35294, United States; Department of Neurology, The University of Alabama at Birmingham, Birmingham, AL 35294, United States; Department of Neurobiology, The University of Alabama at Birmingham, Birmingham, AL 35294, United States.
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49
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Priming Phosphorylation of TANK-Binding Kinase 1 by IκB Kinase β Is Essential in Toll-Like Receptor 3/4 Signaling. Mol Cell Biol 2020; 40:MCB.00509-19. [PMID: 31818880 DOI: 10.1128/mcb.00509-19] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 12/04/2019] [Indexed: 01/02/2023] Open
Abstract
TRIF is an essential adaptor for Toll-like receptor 3/4 (TLR3/4) signaling to activate transcription factor interferon regulatory factor 3 (IRF-3). We examined the molecular mechanism of TLR3 signaling and found that TLR3 stimulation by double-stranded RNA (dsRNA) induces phosphorylation of TRIF at Ser210 and is required for IRF-3 recruitment. TANK-binding kinase 1 (TBK1) is known to be responsible for IRF-3 phosphorylation and activation. We found that TBK1 is also responsible for phosphorylation of Ser210 in TRIF. Unexpectedly, we discovered that IκB kinase β (IKKβ) plays an essential role in TLR3/4 signaling using a pharmacological inhibitor and gene deletion. Of note, IKKβ is essential in TLR3/4 but not in retinoic acid-inducible gene I (RIG-I) signaling. Mechanistically, IKKβ transiently associates with and induces the phosphorylation of TBK1 upon TLR3 stimulation. These results suggest a phosphorylation cascade of IKKβ and TBK1, where priming phosphorylation of TBK1 by IKKβ is required to surpass the threshold to induce signaling, thereby activating IRF-3.
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50
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Nozawa T, Sano S, Minowa-Nozawa A, Toh H, Nakajima S, Murase K, Aikawa C, Nakagawa I. TBC1D9 regulates TBK1 activation through Ca 2+ signaling in selective autophagy. Nat Commun 2020; 11:770. [PMID: 32034138 PMCID: PMC7005872 DOI: 10.1038/s41467-020-14533-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 01/15/2020] [Indexed: 12/19/2022] Open
Abstract
Invading microbial pathogens can be eliminated selectively by xenophagy. Ubiquitin-mediated autophagy receptors are phosphorylated by TANK-binding kinase 1 (TBK1) and recruited to ubiquitinated bacteria to facilitate autophagosome formation during xenophagy, but the molecular mechanism underlying TBK1 activation in response to microbial infection is not clear. Here, we show that bacterial infection increases Ca2+ levels to activate TBK1 for xenophagy via the Ca2+-binding protein TBC1 domain family member 9 (TBC1D9). Mechanistically, the ubiquitin-binding region (UBR) and Ca2+-binding motif of TBC1D9 mediate its binding with ubiquitin-positive bacteria, and TBC1D9 knockout suppresses TBK1 activation and subsequent recruitment of the ULK1 complex. Treatment with a Ca2+ chelator impairs TBC1D9-ubiquitin interactions and TBK1 activation during xenophagy. TBC1D9 is also recruited to damaged mitochondria through its UBR and Ca2+-binding motif, and is required for TBK1 activation during mitophagy. These results indicate that TBC1D9 controls TBK1 activation during xenophagy and mitophagy through Ca2+-dependent ubiquitin-recognition.
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Affiliation(s)
- Takashi Nozawa
- Department of Microbiology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Shunsuke Sano
- Department of Microbiology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Atsuko Minowa-Nozawa
- Department of Microbiology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Hirotaka Toh
- Department of Microbiology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Shintaro Nakajima
- Department of Life Science Dentistry, The Nippon Dental University, Tokyo, 102-8159, Japan.,Department of Developmental and Regenerative Dentistry, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, 102-8159, Japan
| | - Kazunori Murase
- Department of Microbiology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Chihiro Aikawa
- Department of Microbiology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Ichiro Nakagawa
- Department of Microbiology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
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