1
|
Liu J, Dai C, Yin L, Yang X, Yan J, Liu M, Wu H, Xiao J, Kong W, Xu Z, Feng H. STAT2 negatively regulates RIG-I in the antiviral innate immunity of black carp. Fish & Shellfish Immunology 2024; 148:109510. [PMID: 38521143 DOI: 10.1016/j.fsi.2024.109510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/05/2024] [Accepted: 03/15/2024] [Indexed: 03/25/2024]
Abstract
The signal transducer and activator of transcription 2 (STAT2), a downstream factor of type I interferons (IFNs), is a key component of the cellular antiviral immunity response. However, the role of STAT2 in the upstream of IFN signaling, such as the regulation of pattern recognition receptors (PRRs), remains unknown. In this study, STAT2 homologue of black carp (Mylopharyngodon piceus) has been cloned and characterized. The open reading frame (ORF) of bcSTAT2 comprises 2523 nucleotides and encodes 841 amino acids, which presents the conserved structure to that of mammalian STAT2. The dual-luciferase reporter assay and the plaque assay showed that bcSTAT2 possessed certain IFN-inducing ability and antiviral ability against both spring viremia of carp virus (SVCV) and grass carp reovirus (GCRV). Interestingly, we detected the association between bcSTAT2 and bcRIG-I through co-immunoprecipitation (co-IP) assay. Moreover, when bcSTAT2 was co-expressed with bcRIG-I, bcSTAT2 obviously suppressed bcRIG-I-induced IFN expression and antiviral activity. The subsequent co-IP assay and immunoblotting (IB) assay further demonstrated that bcSTAT2 inhibited K63-linked polyubiquitination but not K48-linked polyubiquitination of bcRIG-I, however, did not affect the oligomerization of bcRIG-I. Thus, our data conclude that black carp STAT2 negatively regulates RIG-I through attenuates its K63-linked ubiquitination, which sheds a new light on the regulation of the antiviral innate immunity cascade in vertebrates.
Collapse
Affiliation(s)
- Ji Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China; College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China
| | - Chushan Dai
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Lijun Yin
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Xiao Yang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Jun Yan
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Meiling Liu
- College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China
| | - Hui Wu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Jun Xiao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Weiguang Kong
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Zhen Xu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Hao Feng
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China.
| |
Collapse
|
2
|
Nissly RH, Lim L, Keller MR, Bird IM, Bhushan G, Misra S, Chothe SK, Sill MC, Kumar NV, Sivakumar AVN, Naik BR, Jayarao BM, Kuchipudi SV. The Susceptibility of Chickens to Zika Virus: A Comprehensive Study on Age-Dependent Infection Dynamics and Host Responses. Viruses 2024; 16:569. [PMID: 38675911 PMCID: PMC11054531 DOI: 10.3390/v16040569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 03/22/2024] [Accepted: 04/02/2024] [Indexed: 04/28/2024] Open
Abstract
Zika virus (ZIKV) remains a public health concern, with epidemics in endemic regions and sporadic outbreaks in new areas posing significant threats. Several mosquito-borne flaviviruses that can cause human illness, including West Nile, Usutu, and St. Louis encephalitis, have associations with birds. However, the susceptibility of chickens to ZIKV and their role in viral epidemiology is not currently known. We investigated the susceptibility of chickens to experimental ZIKV infection using chickens ranging from 1-day-old chicks to 6-week-old birds. ZIKV caused no clinical signs in chickens of all age groups tested. Viral RNA was detected in the blood and tissues during the first 5 days post-inoculation in 1-day and 4-day-old chicks inoculated with a high viral dose, but ZIKV was undetectable in 6-week-old birds at all timepoints. Minimal antibody responses were observed in 6-week-old birds, and while present in younger chicks, they waned by 28 days post-infection. Innate immune responses varied significantly between age groups. Robust type I interferon and inflammasome responses were measured in older chickens, while limited innate immune activation was observed in younger chicks. Signal transducer and activator of transcription 2 (STAT2) is a major driver of host restriction to ZIKV, and chicken STAT2 is distinct from human STAT2, potentially contributing to the observed resistance to ZIKV infection. The rapid clearance of the virus in older chickens coincided with an effective innate immune response, highlighting age-dependent susceptibility. Our study indicates that chickens are not susceptible to productive ZIKV infection and are unlikely to play a role in the ZIKV epidemiology.
Collapse
Affiliation(s)
- Ruth H. Nissly
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (L.L.); (M.R.K.); (I.M.B.); (G.B.); (B.M.J.)
| | - Levina Lim
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (L.L.); (M.R.K.); (I.M.B.); (G.B.); (B.M.J.)
- DermBiont, Inc., 451 D Street, Suite 908, Boston, MA 02210, USA
| | - Margo R. Keller
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (L.L.); (M.R.K.); (I.M.B.); (G.B.); (B.M.J.)
| | - Ian M. Bird
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (L.L.); (M.R.K.); (I.M.B.); (G.B.); (B.M.J.)
- Applied Biological Sciences Group, The Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - Gitanjali Bhushan
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (L.L.); (M.R.K.); (I.M.B.); (G.B.); (B.M.J.)
- College of Medicine, Pennsylvania State University, Hershey, PA 17033, USA
| | - Sougat Misra
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA 15261, USA; (S.M.); (S.K.C.)
| | - Shubhada K. Chothe
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA 15261, USA; (S.M.); (S.K.C.)
| | - Miranda C. Sill
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA;
| | - Nagaram Vinod Kumar
- College of Veterinary Science, Sri Venkateswara Veterinary University, Tirupati 517 602, Andhra Pradesh, India; (N.V.K.); (A.V.N.S.); (B.R.N.)
| | - A. V. N. Sivakumar
- College of Veterinary Science, Sri Venkateswara Veterinary University, Tirupati 517 602, Andhra Pradesh, India; (N.V.K.); (A.V.N.S.); (B.R.N.)
| | - B. Rambabu Naik
- College of Veterinary Science, Sri Venkateswara Veterinary University, Tirupati 517 602, Andhra Pradesh, India; (N.V.K.); (A.V.N.S.); (B.R.N.)
| | - Bhushan M. Jayarao
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA 16802, USA; (R.H.N.); (L.L.); (M.R.K.); (I.M.B.); (G.B.); (B.M.J.)
| | - Suresh V. Kuchipudi
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA 15261, USA; (S.M.); (S.K.C.)
- Center for Vaccine Research, University of Pittsburgh, Pittsburgh, PA 15261, USA
| |
Collapse
|
3
|
Peng NYG, Sng JDJ, Setoh YX, Khromykh AA. Residue K28 of Zika Virus NS5 Protein Is Implicated in Virus Replication and Antagonism of STAT2. Microorganisms 2024; 12:660. [PMID: 38674605 PMCID: PMC11052099 DOI: 10.3390/microorganisms12040660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/07/2024] [Accepted: 03/19/2024] [Indexed: 04/28/2024] Open
Abstract
The identification of four potential nonstructural 5 (NS5) residues-K28, K45, V335, and S749-that share the same amino acid preference in STAT2-interacting flaviviruses [Dengue virus (DENV) and Zika virus (ZIKV)], but not in STAT2-non-interacting flaviviruses [West Nile virus (WNV) and/or Yellow fever virus (YFV)] from an alignment of multiple flavivirus NS5 sequences, implied a possible association with the efficiency of ZIKV to antagonize the human signal transducer and activator of transcription factor 2 (STAT2). Through site-directed mutagenesis and reverse genetics, mutational impacts of these residues on ZIKV growth in vitro and STAT2 antagonism were assessed using virus growth kinetics assays and STAT2 immunoblotting. The results showed that mutations at the residue K28 significantly reduced the efficiency of ZIKV to antagonize STAT2. Further investigation involving residue K28 demonstrated its additional effects on the phenotypes of ZIKV-NS5 nuclear bodies. These findings demonstrate that K28, identified from sequence alignment, is an important determinant of replication and STAT2 antagonism by ZIKV.
Collapse
Affiliation(s)
- Nias Y. G. Peng
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (J.D.J.S.); (Y.X.S.)
| | - Julian D. J. Sng
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (J.D.J.S.); (Y.X.S.)
| | - Yin Xiang Setoh
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (J.D.J.S.); (Y.X.S.)
- Infectious Diseases Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore
| | - Alexander A. Khromykh
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (J.D.J.S.); (Y.X.S.)
- Australian Infectious Diseases Research Centre, Global Virus Network Centre of Excellence, Brisbane, QLD 4072, Australia
| |
Collapse
|
4
|
Liu X, Chen J, Zhang J. [Retracted] AdipoR1‑mediated miR‑3908 inhibits glioblastoma tumorigenicity through downregulation of STAT2 associated with the AMPK/SIRT1 pathway. Oncol Rep 2024; 51:38. [PMID: 38186314 PMCID: PMC10804436 DOI: 10.3892/or.2024.8697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 04/07/2017] [Indexed: 01/09/2024] Open
Abstract
Following the publication of this paper, it was drawn to the Editor's attention by a concerned reader that certain of the western blotting data shown in Figs. 3B and 9, and the migration assay data shown in Fig. 6C, were strikingly similar to data that had already appeared in other publications written by different authors at different research institutes. Owing to the fact that the contentious data in the above article had already been published prior to its submission to Oncology Reports, the Editor has decided that this paper should be retracted from the Journal. The authors were asked for an explanation to account for these concerns, but the Editorial Office did not receive a reply. The Editor apologizes to the readership for any inconvenience caused. [Oncology Reports 37: 3387‑3396, 2017; DOI: 10.3892/or.2017.5589].
Collapse
Affiliation(s)
- Xiangming Liu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Jinglong Chen
- Department of Oncology, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, P.R. China
| | - Jinqian Zhang
- Department of Laboratory Medicine, the Second People's Hospital of Guangdong Province, Southern Medical University, Guangzhou, Guangdong 510317, P.R. China
| |
Collapse
|
5
|
Liongue C, Sobah ML, Ward AC. Signal Transducer and Activator of Transcription Proteins at the Nexus of Immunodeficiency, Autoimmunity and Cancer. Biomedicines 2023; 12:45. [PMID: 38255152 PMCID: PMC10813391 DOI: 10.3390/biomedicines12010045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
The signal transducer and activator of transcription (STAT) family of proteins has been demonstrated to perform pivotal roles downstream of a myriad of cytokines, particularly those that control immune cell production and function. This is highlighted by both gain-of-function (GOF) and loss-of-function (LOF) mutations being implicated in various diseases impacting cells of the immune system. These mutations are typically inherited, although somatic GOF mutations are commonly observed in certain immune cell malignancies. This review details the growing appreciation of STAT proteins as a key node linking immunodeficiency, autoimmunity and cancer.
Collapse
Affiliation(s)
- Clifford Liongue
- School of Medicine, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia; (C.L.); (M.L.S.)
- Institute for Mental and Physical Health and Clinical Translation, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia
| | - Mohamed Luban Sobah
- School of Medicine, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia; (C.L.); (M.L.S.)
| | - Alister C. Ward
- School of Medicine, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia; (C.L.); (M.L.S.)
- Institute for Mental and Physical Health and Clinical Translation, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia
| |
Collapse
|
6
|
Chiriac MT, Hracsko Z, Becker C, Neurath MF. STAT2 Controls Colorectal Tumorigenesis and Resistance to Anti-Cancer Drugs. Cancers (Basel) 2023; 15:5423. [PMID: 38001683 PMCID: PMC10670206 DOI: 10.3390/cancers15225423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/08/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
Colorectal cancer (CRC) is a significant socioeconomic burden in modern society and is accountable for millions of premature deaths each year. The role of signal transducer and activator of transcription 2 (STAT2)-dependent signaling in this context is not yet fully understood, and no therapies targeting this pathway are currently being pursued. We investigated the role of STAT2 in CRC using experimental mouse models coupled with RNA-sequencing (RNA-Seq) data and functional assays with anti-cancer agents in three-dimensional tumoroids. Stat2-/- mice showed greater resistance to the development of CRC in both inflammation-driven and inflammation-independent experimental CRC models. In ex vivo studies, tumoroids derived from Stat2-/- mice with the multiple intestinal neoplasia (Min) mutant allele of the adenomatous polyposis coli (Apc) locus exhibited delayed growth, were overall smaller and more differentiated as compared with tumoroids from ApcMin/+ wildtype (WT) mice. Notably, tumoroids from ApcMin/+ Stat2-/- mice were more susceptible to anti-cancer agents inducing cell death by different mechanisms. Our findings clearly indicated that STAT2 promotes CRC and suggested that interventions targeting STAT2-dependent signals might become an attractive therapeutic option for patients with CRC.
Collapse
Affiliation(s)
- Mircea T. Chiriac
- Department of Medicine 1, Gastroenterology, Endocrinology and Pneumology, University Hospital Erlangen, University of Erlangen-Nuremberg, 91054 Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, 91054 Erlangen, Germany
| | - Zsuzsanna Hracsko
- Department of Medicine 1, Gastroenterology, Endocrinology and Pneumology, University Hospital Erlangen, University of Erlangen-Nuremberg, 91054 Erlangen, Germany
| | - Christoph Becker
- Department of Medicine 1, Gastroenterology, Endocrinology and Pneumology, University Hospital Erlangen, University of Erlangen-Nuremberg, 91054 Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, 91054 Erlangen, Germany
| | - Markus F. Neurath
- Department of Medicine 1, Gastroenterology, Endocrinology and Pneumology, University Hospital Erlangen, University of Erlangen-Nuremberg, 91054 Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, 91054 Erlangen, Germany
- Ludwig Demling Endoscopy Center of Excellence, University Hospital Erlangen, University of Erlangen-Nuremberg, 91054 Erlangen, Germany
| |
Collapse
|
7
|
Li C, Li G, Tu S, Bai X, Yuan H. Integrative bioinformatics analysis reveals STAT2 as a novel biomarker of inflammation-related cardiac dysfunction in atrial fibrillation. Open Med (Wars) 2023; 18:20230834. [PMID: 38025532 PMCID: PMC10655688 DOI: 10.1515/med-2023-0834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 09/19/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Atrial fibrillation (AF) is a common critical cause of stroke and cardiac dysfunction worldwide with lifetime risks. Viral infection and inflammatory response with myocardial involvement may lead to an increase in AF-related mortality. To dissect the potential sequelae of viral infection in AF patients, especially the coronavirus disease 2019 (COVID-19), based on AF and COVID-19 databases from Gene Expression Omnibus, weighted gene co-expression network analysis was used to identify key genes in heart tissues and peripheral blood mononuclear cells. Here, HSCT, PSMB9, STAT2, and TNFSF13B were identified as common risk genes of AF and COVID-19 patients. Correlation analysis of these genes with AF and COVID-19 showed a positive disease relevance. silencing of STAT2 by small interfering RNA significantly rescued SARS-CoV-2 XBB1.5 pseudovirus-induced cardiac cell contraction dysfunction in vitro. In conclusion, we identified STAT2 may be a novel biomarker of inflammation-related cardiac dysfunction in AF.
Collapse
Affiliation(s)
- Cairong Li
- Department of Cardiology, First People’s Hospital of Linping District, Hangzhou311199, P.R. China
| | - Guanhua Li
- Department of Cardiology, First People’s Hospital of Linping District, Hangzhou311199, P.R. China
| | - Sijia Tu
- Department of Cardiology, First People’s Hospital of Linping District, Hangzhou311199, P.R. China
| | - Xinghua Bai
- Department of Cardiology, First People’s Hospital of Linping District, Hangzhou311199, P.R. China
| | - Hong Yuan
- Department of Cardiology, First People’s Hospital of Linping District, 369 Yingbin Rd, Hangzhou311199, P.R. China
| |
Collapse
|
8
|
Russell MA, Richardson SJ, Morgan NG. The role of the interferon/JAK-STAT axis in driving islet HLA-I hyperexpression in type 1 diabetes. Front Endocrinol (Lausanne) 2023; 14:1270325. [PMID: 37867531 PMCID: PMC10588626 DOI: 10.3389/fendo.2023.1270325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/06/2023] [Indexed: 10/24/2023] Open
Abstract
The hyperexpression of human leukocyte antigen class I (HLA-I) molecules on pancreatic beta-cells is widely accepted as a hallmark feature of type 1 diabetes pathogenesis. This response is important clinically since it may increase the visibility of beta-cells to autoreactive CD8+ T-cells, thereby accelerating disease progression. In this review, key factors which drive HLA-I hyperexpression will be explored, and their clinical significance examined. It is established that the presence of residual beta-cells is essential for HLA-I hyperexpression by islet cells at all stages of the disease. We suggest that the most likely drivers of this process are interferons released from beta-cells (type I or III interferon; possibly in response to viral infection) or those elaborated from influent, autoreactive immune cells (type II interferon). In both cases, Janus Kinase/Signal Transducer and Activator of Transcription (JAK/STAT) pathways will be activated to induce the downstream expression of interferon stimulated genes. A variety of models have highlighted that HLA-I expression is enhanced in beta-cells in response to interferons, and that STAT1, STAT2 and interferon regulatory factor 9 (IRF9) play key roles in mediating these effects (depending on the species of interferon involved). Importantly, STAT1 expression is elevated in the beta-cells of donors with recent-onset type I diabetes, and this correlates with HLA-I hyperexpression on an islet-by-islet basis. These responses can be replicated in vitro, and we consider that chronically elevated STAT1 may have a role in maintaining HLA-I hyperexpression. However, other data have highlighted that STAT2-IRF9 may also be critical to this process. Thus, a better understanding of how these factors regulate HLA-I under chronically stimulated conditions needs to be gathered. Finally, JAK inhibitors can target interferon signaling pathways to diminish HLA-I expression in mouse models. It seems probable that these agents may also be effective in patients; diminishing HLA-I hyperexpression on islets, reducing the visibility of beta-cells to the immune system and ultimately slowing disease progression. The first clinical trials of selective JAK inhibitors are underway, and the outcomes should have important implications for type 1 diabetes clinical management.
Collapse
Affiliation(s)
- Mark A. Russell
- Department of Clinical and Biomedical Sciences, University of Exeter, Exeter, United Kingdom
| | | | | |
Collapse
|
9
|
Chen M, Nie Z, Huang D, Gao Y, Cao H, Zheng L, Zhang S. Machine learning-based on cytotoxic T lymphocyte evasion gene develops a novel signature to predict prognosis and immunotherapy responses for kidney renal clear cell carcinoma patients. Front Immunol 2023; 14:1192428. [PMID: 37600786 PMCID: PMC10436106 DOI: 10.3389/fimmu.2023.1192428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 07/13/2023] [Indexed: 08/22/2023] Open
Abstract
Background Immunotherapy resistance has become a difficult point in treating kidney renal clear cell carcinoma (KIRC) patients, mainly because of immune evasion. Currently, there is no effective signature to predict immunotherapy. Therefore, we use machine learning algorithms to construct a signature based on cytotoxic T lymphocyte evasion genes (CTLEGs) to predict the immunotherapy responses of patients, so as to screen patients effective for immunotherapy. Methods In public data sets and our in-house cohort, we used 10 machine learning algorithms to screen the optimal model with 89 combinations under the cross-validation framework, and 101 published signatures were collected. The relationship between the CTLEG signature (CTLEGS) and clinical variables was analyzed. We analyzed the role of CTLES in other types of cancer by pan-cancer analysis. The immune cell infiltration and biological characteristics were evaluated. Moreover, the response to immunotherapy and drug sensitivity of different risk groups were investigated. The key gene closely related to the signature was identified by WGCNA. We also conducted cell functional experiments and clinical tissue validation of key gene. Results In public data sets and our in-house cohort, the CTLEGS shows good prediction performance. The CTLEGS can be regard as an independent risk factor for KIRC. Compared with 101 published models, our signature shows considerable superiority. The high-risk group has abundant infiltration of immunosuppressive cells and high expression of T cell depletion markers, which are characterized by immunosuppressive phenotype, minimal benefit from immunotherapy, and resistance to sunitinib and sorafenib. The CTLEGS was also strongly correlated with immunity in pan-cancer. Immunohistochemistry verified that T cell depletion marker LAG3 is highly expressed in high-risk groups in the clinical in-house cohort. The key CTLEG STAT2 can promote the proliferation, migration and invasion of KIRC cell. Conclusions CTLEGS can accurately predict the prognosis of patients and their response to immunotherapy. It can provide guidance for the precise treatment of KIRC and help clinicians identify patients who may benefit from immunotherapy.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Shufang Zhang
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| |
Collapse
|
10
|
Han J, Sun Y, Wu T, Hou X, Zheng S, Zhang H, Lin T, Liu H, Sun T. Echinacoside-Zinc Nanomaterial Inhibits Skin Glycation by Suppressing the Transcriptional Activation of the Receptor for Advanced Glycation End-Products. ACS Nano 2023. [PMID: 37403876 PMCID: PMC10373517 DOI: 10.1021/acsnano.3c04726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
Glycation is a nonenzymatically catalyzed spontaneous reaction that eventually leads to the formation of advanced glycation end-products (AGEs), which can bind to the receptor for AGEs (RAGE). The consequences are oxidative damage, an inflammatory response, and aging. In this work, we synthesized echinacoside-zinc coordination polymers (ECH-Zn) by using the coordination interaction between the catechol group of ECH and zinc ions. ECH-Zn was further wrapped with hyaluronic acid/poly (ethylenimine) (HA-PEI) to obtain spherical nanoparticle polymers of HA-PEI-coated ECH-Zn (PPZn). PPZn can enhance the uptake and utilization of ECH-Zn and also have a better antiglycation effect in the skin under the effect of promoting transdermal absorption of HA-PEI. Mechanistic studies at the cellular level showed that MDM2 can interact with STAT2 to form a transcriptional complex and thus promote RAGE transcriptional activation. In vitro and in vivo studies revealed that PPZn can decrease the expression and inhibit the interaction of the MDM2/STAT2 complex. It inhibited the function of the MDM2/STAT2 complex and suppressed the transcriptional activation of RAGE, thereby exerting antiglycation effects. In conclusion, this work provides a nanomaterial and elucidated a mechanism of anti-skin glycation.
Collapse
Affiliation(s)
- Jingxia Han
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, 300350, China
| | - Yu Sun
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, 300350, China
- Tianjin Key Laboratory of Molecular Drug Research, Tianjin International Joint Academy of Biomedicine, Tianjin, 300457, China
| | - Ting Wu
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, 300350, China
| | - Xiaohui Hou
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, 300350, China
| | - Shaoting Zheng
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, 300350, China
| | - Haohao Zhang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, 300350, China
| | - Tingting Lin
- Medical Plastic and Cosmetic Center, Tianjin Branch of National Clinical Research Center for Ocular Disease, Tianjin Medical University Eye Hospital, Tianjin, 300384, China
| | - Huijuan Liu
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, 300350, China
| | - Tao Sun
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, 300350, China
| |
Collapse
|
11
|
Augustine G, Sisila V, Indhu M, Gupta D, Tandel D, Harshan KH, Shanmugam G, Padmapriya P, Sivasubramanian S, Kaveri K, Ramudu KN, Ayyadurai N. Redirecting the JAK-STAT signal blocks the SARS-CoV-2 replication. J Med Virol 2023; 95:e28965. [PMID: 37488710 DOI: 10.1002/jmv.28965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 06/05/2023] [Accepted: 07/05/2023] [Indexed: 07/26/2023]
Abstract
The distinct disease progression patterns of severe acute respiratory syndrome coronavirus clade 2 (SARS-CoV-2) indicate diverse host immune responses. SARS-CoV-2 severely impairs type I interferon (IFN) cell signaling, resulting in uncontrolled late-phase lung damage in patients. For better pharmacological properties, cytokine modifications may sometimes result in a loss of biological activity against the virus. Here, we employed the genetic code expansion and engineered IFN-β, a phase II clinical cytokine with 3-amino tyrosine (IFN-β-A) that reactivates STAT2 expression in virus-infected human cells through JAK/STAT cell signaling without affecting signal activation and serum half-life. This study identified that genetically encoded IFN-β-A might stabilize the protein-receptor complex and trigger JAK-STAT cell signaling, which is a promising modality for controlling SARS-CoV-2 infection.
Collapse
Affiliation(s)
- George Augustine
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research-Central Leather Research Institute (CSIR-CLRI), Chennai, India
- Department of Biochemistry and Biophysics, Oregon State University, Corvallis, Oregon, USA
| | - Valappil Sisila
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research-Central Leather Research Institute (CSIR-CLRI), Chennai, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Mohan Indhu
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research-Central Leather Research Institute (CSIR-CLRI), Chennai, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Divya Gupta
- Council of Scientific and Industrial Research-Centre for Cellular and Molecular Biology (CSIR-CCMB), Hyderabad, India
| | - Dixit Tandel
- Council of Scientific and Industrial Research-Centre for Cellular and Molecular Biology (CSIR-CCMB), Hyderabad, India
| | - Krishnan Harinivas Harshan
- Council of Scientific and Industrial Research-Centre for Cellular and Molecular Biology (CSIR-CCMB), Hyderabad, India
| | - Ganesh Shanmugam
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Department of Bio-Organic Chemistry, Council of Scientific and Industrial Research-Central Leather Research Institute (CSIR-CLRI), Chennai, India
| | - Padmanabhan Padmapriya
- Department of Virology, King Institute of Preventive Medicine and Research, Chennai, India
| | | | - Krishnaswamy Kaveri
- Department of Virology, King Institute of Preventive Medicine and Research, Chennai, India
| | - Kamini Numbi Ramudu
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research-Central Leather Research Institute (CSIR-CLRI), Chennai, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Niraikulam Ayyadurai
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research-Central Leather Research Institute (CSIR-CLRI), Chennai, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Council of Scientific and Industrial Research-Centre for Cellular and Molecular Biology (CSIR-CCMB), Hyderabad, India
| |
Collapse
|
12
|
Yoshikawa R, Kawakami M, Yasuda J. The NSs protein of severe fever with thrombocytopenia syndrome virus differentially inhibits the type 1 interferon response among animal species. J Biol Chem 2023:104819. [PMID: 37187292 DOI: 10.1016/j.jbc.2023.104819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 05/17/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome virus (SFTSV), which has been reported in China, Korea, Japan, Vietnam, and Taiwan, is a causative agent of severe fever thrombocytopenia syndrome (SFTS). This virus has a high mortality and induces thrombocytopenia and leukocytopenia in humans, cats, and aged ferrets, whereas immunocompetent adult mice infected with SFTSV never show symptoms. Anti-SFTSV antibodies have been detected in several animals- including goats, sheep, cattle, and pigs. However, there are no reports of SFTS in these animals. Previous studies have reported that the nonstructural protein NSs of SFTSV inhibits the type I interferon (IFN-I) response through the sequestration of human signal transducer and activator of transcription (STAT) proteins. In this study, comparative analysis of the function of NSs as IFN antagonists in human, cat, dog, ferret, mouse, and pig cells revealed a correlation between pathogenicity of SFTSV and the function of NSs in each animal. Furthermore, we found that the inhibition of IFN-I signaling and phosphorylation of STAT1 and STAT2 by NSs depended on the binding ability of NSs to STAT1 and STAT2. Our results imply that the function of NSs in antagonizing STAT2 determines the species-specific pathogenicity of SFTSV.
Collapse
Affiliation(s)
- Rokusuke Yoshikawa
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine (NEKKEN); National Research Center for the Control and Prevention of Infectious Diseases (CCPID)
| | - Masahiro Kawakami
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine (NEKKEN)
| | - Jiro Yasuda
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine (NEKKEN); National Research Center for the Control and Prevention of Infectious Diseases (CCPID); Graduate School of Biomedical Sciences and Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan.
| |
Collapse
|
13
|
Wang C, Nan J, Holvey-Bates E, Chen X, Wightman S, Latif MB, Zhao J, Li X, Sen GC, Stark GR, Wang Y. STAT2 hinders STING intracellular trafficking and reshapes its activation in response to DNA damage. Proc Natl Acad Sci U S A 2023; 120:e2216953120. [PMID: 37036972 PMCID: PMC10120020 DOI: 10.1073/pnas.2216953120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023] Open
Abstract
In cancer cells, endogenous or therapy-induced DNA damage leads to the abnormal presence of DNA in the cytoplasm, which triggers the activation of cGAS (cyclic GMP-AMP synthase) and STING (stimulator of interferon genes). STAT2 suppresses the cGAMP-induced expression of IRF3-dependent genes by binding to STING, blocking its intracellular trafficking, which is essential for the full response to STING activation. STAT2 reshapes STING signaling by inhibiting the induction of IRF3-dependent, but not NF-κB-dependent genes. This noncanonical activity of STAT2 is regulated independently of its tyrosine phosphorylation but does depend on the phosphorylation of threonine 404, which promotes the formation of a STAT2:STING complex that keeps STING bound to the endoplasmic reticulum (ER) and increases resistance to DNA damage. We conclude that STAT2 is a key negative intracellular regulator of STING, a function that is quite distinct from its function as a transcription factor.
Collapse
Affiliation(s)
- Chenyao Wang
- Department of Inflammation and Immunity, Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, OH 44195
- Department of Medicine, Mayo Clinic College of Medicine and Science, Mayo Clinic, Rochester, MN 55905
| | - Jing Nan
- Institute of Cancer Biology and Drug Screening, School of Life Sciences, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Elise Holvey-Bates
- Department of Cancer Biology, Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, OH 44195
| | - Xing Chen
- Department of Inflammation and Immunity, Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, OH 44195
| | - Samantha Wightman
- Department of Cancer Biology, Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, OH 44195
| | - Muhammad-Bilal Latif
- Pathology Advanced Translational Research Unit, Department of Pathology and Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA 30322
| | - Junjie Zhao
- Department of Inflammation and Immunity, Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, OH 44195
| | - Xiaoxia Li
- Department of Inflammation and Immunity, Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, OH 44195
| | - Ganes C Sen
- Department of Inflammation and Immunity, Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, OH 44195
| | - George R Stark
- Department of Cancer Biology, Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, OH 44195
| | - Yuxin Wang
- Department of Cancer Biology, Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, OH 44195
| |
Collapse
|
14
|
Acchioni C, Acchioni M, Mancini F, Amendola A, Marsili G, Tirelli V, Gwee CP, Chan KWK, Sandini S, Bisbocci M, Mysara M, ElHefnawi M, Sanchez M, Venturi G, Barreca ML, Manfroni G, Bresciani A, Vasudevan SG, Sgarbanti M. A cellular screening platform, stably expressing DENV2 NS5, defines a novel anti-DENV mechanism of action of Apigenin based on STAT2 activation. Virology 2023; 583:1-13. [PMID: 37060797 DOI: 10.1016/j.virol.2023.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/13/2023] [Accepted: 03/28/2023] [Indexed: 04/17/2023]
Abstract
Type I interferon (IFN-I) evasion by Dengue virus (DENV) is key in DENV pathogenesis. The non-structural protein 5 (NS5) antagonizes IFN-I response through the degradation of the signal transducer and activator of transcription 2 (STAT2). We developed a K562 cell-based platform, for high throughput screening of compounds potentially counteracting the NS5-mediated antagonism of IFN-I signaling. Upon a screening with a library of 1220 approved drugs, 3 compounds previously linked to DENV inhibition (Apigenin, Chrysin, and Luteolin) were identified. Luteolin and Apigenin determined a significant inhibition of DENV2 replication in Huh7 cells and the restoration of STAT2 phosphorylation in both cell systems. Apigenin and Luteolin were able to stimulate STAT2 even in the absence of infection. Despite the "promiscuous" and "pan-assay-interfering" nature of Luteolin, Apigenin promotes STAT2 Tyr 689 phosphorylation and activation, highlighting the importance of screening for compounds able to interact with host factors, to counteract viral proteins capable of dampening innate immune responses.
Collapse
Affiliation(s)
- Chiara Acchioni
- Department of Infectious Diseases, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Marta Acchioni
- Department of Infectious Diseases, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Flavia Mancini
- National HIV/AIDS Research Center, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Antonello Amendola
- Department of Infectious Diseases, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Giulia Marsili
- Department of Infectious Diseases, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Valentina Tirelli
- Core Facility Service, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Chin Piaw Gwee
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, 8-College Road, 169857, Singapore.
| | - Kitti Wing-Ki Chan
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, 8-College Road, 169857, Singapore.
| | - Silvia Sandini
- Department of Infectious Diseases, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Monica Bisbocci
- Department of Translational and Discovery Research, IRBM S.p.A., Pomezia, Roma, Italy.
| | - Mohamed Mysara
- Bioinformatics Group, Center for Informatics Sciences (CIS), School of Information Technology and Computer Science (ITCS), Nile University, Giza, Egypt.
| | - Mahmoud ElHefnawi
- Biomedical Informatics and Chemoinformatics Group, Informatics and Systems Department, National Research Centre, Cairo, Egypt.
| | - Massimo Sanchez
- Core Facility Service, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Giulietta Venturi
- Department of Infectious Diseases, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Maria Letizia Barreca
- Department of Pharmaceutical Sciences, Università Degli Studi di Perugia, Via Del Liceo 1, 06123, Perugia, Italy.
| | - Giuseppe Manfroni
- Department of Pharmaceutical Sciences, Università Degli Studi di Perugia, Via Del Liceo 1, 06123, Perugia, Italy.
| | - Alberto Bresciani
- Department of Translational and Discovery Research, IRBM S.p.A., Pomezia, Roma, Italy
| | - Subhash G Vasudevan
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, 8-College Road, 169857, Singapore.
| | - Marco Sgarbanti
- Department of Infectious Diseases, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| |
Collapse
|
15
|
Li YH, Peng JL, Xu ZS, Xiong MG, Wu HN, Wang SY, Li D, Zhu GQ, Ran Y, Wang YY. African Swine Fever Virus Cysteine Protease pS273R Inhibits Type I Interferon Signaling by Mediating STAT2 Degradation. J Virol 2023; 97:e0194222. [PMID: 36856422 PMCID: PMC10062137 DOI: 10.1128/jvi.01942-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/02/2023] [Indexed: 03/02/2023] Open
Abstract
African swine fever virus (ASFV) is a large DNA virus that causes African swine fever (ASF), an acute and hemorrhagic disease in pigs with lethality rates of up to 100%. To date, how ASFV efficiently suppress the innate immune response remains enigmatic. In this study, we identified ASFV cysteine protease pS273R as an antagonist of type I interferon (IFN). Overexpression of pS273R inhibited JAK-STAT signaling triggered by type I IFNs. Mechanistically, pS273R interacted with STAT2 and recruited the E3 ubiquitin ligase DCST1, resulting in K48-linked polyubiquitination at K55 of STAT2 and subsequent proteasome-dependent degradation of STAT2. Furthermore, such a function of pS273R in JAK-STAT signaling is not dependent on its protease activity. These findings suggest that ASFV pS273R is important to evade host innate immunity. IMPORTANCE ASF is an acute disease in domestic pigs caused by infection with ASFV. ASF has become a global threat with devastating economic and ecological consequences. To date, there are no commercially available, safe, and efficacious vaccines to prevent ASFV infection. ASFV has evolved a series of strategies to evade host immune responses, facilitating its replication and transmission. Therefore, understanding the immune evasion mechanism of ASFV is helpful for the development of prevention and control measures for ASF. Here, we identified ASFV cysteine protease pS273R as an antagonist of type I IFNs. ASFV pS273R interacted with STAT2 and mediated degradation of STAT2, a transcription factor downstream of type I IFNs that is responsible for induction of various IFN-stimulated genes. pS273R recruited the E3 ubiquitin ligase DCST1 to enhance K48-linked polyubiquitination of STAT2 at K55 in a manner independent of its protease activity. These findings suggest that pS273R is important for ASFV to escape host innate immunity, which sheds new light on the mechanisms of ASFV immune evasion.
Collapse
Affiliation(s)
- Yu-Hui Li
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-science, Chinese Academy of Sciences, Wuhan, China
- African Swine Fever Regional Laboratory of China, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jiang-Ling Peng
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- African Swine Fever Regional Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Zhi-Sheng Xu
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-science, Chinese Academy of Sciences, Wuhan, China
| | - Mei-Guang Xiong
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-science, Chinese Academy of Sciences, Wuhan, China
- African Swine Fever Regional Laboratory of China, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Huang-Ning Wu
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-science, Chinese Academy of Sciences, Wuhan, China
- African Swine Fever Regional Laboratory of China, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Su-Yun Wang
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-science, Chinese Academy of Sciences, Wuhan, China
- African Swine Fever Regional Laboratory of China, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Dan Li
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- African Swine Fever Regional Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Guo-Qiang Zhu
- State Key Laboratory of Veterinary Etiological Biology, OIE/National Foot and Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- African Swine Fever Regional Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Yong Ran
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-science, Chinese Academy of Sciences, Wuhan, China
- African Swine Fever Regional Laboratory of China, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 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
- African Swine Fever Regional Laboratory of China, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| |
Collapse
|
16
|
Becker N, Maisner A. Nipah Virus Impairs Autocrine IFN Signaling by Sequestering STAT1 and STAT2 into Inclusion Bodies. Viruses 2023; 15:554. [PMID: 36851768 PMCID: PMC9967463 DOI: 10.3390/v15020554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 02/19/2023] Open
Abstract
Nipah virus (NiV) is an emerging zoonotic paramyxovirus that causes fatal infections in humans. As with most disease-causing viruses, the pathogenic potential of NiV is linked to its ability to block antiviral responses, e.g., by antagonizing IFN signaling through blocking STAT proteins. One of the STAT1/2-binding proteins of NiV is the phosphoprotein (P), but its functional role in IFN antagonism in a full viral context is not well defined. As NiV P is required for genome replication and specifically accumulates in cytosolic inclusion bodies (IBs) of infected cells, we hypothesized that this compartmentalization might play a role in P-mediated IFN antagonism. Supporting this notion, we show here that NiV can inhibit IFN-dependent antiviral signaling via a NiV P-dependent sequestration of STAT1 and STAT2 into viral IBs. Consequently, the phosphorylation/activation and nuclear translocation of STAT proteins in response to IFN is limited, as indicated by the lack of nuclear pSTAT in NiV-infected cells. Blocking autocrine IFN signaling by sequestering STAT proteins in IBs is a not yet described mechanism by which NiV could block antiviral gene expression and provides the first evidence that cytosolic NiV IBs may play a functional role in IFN antagonism.
Collapse
Affiliation(s)
| | - Andrea Maisner
- Institute of Virology, Philipps University Marburg, Hans-Meerwein-Str. 2, 35043 Marburg, Germany
| |
Collapse
|
17
|
Zhu G, Badonyi M, Franklin L, Seabra L, Rice GI, Anne-Boland-Auge, Deleuze JF, El-Chehadeh S, Anheim M, de Saint-Martin A, Pellegrini S, Marsh JA, Crow YJ, El-Daher MT. Type I Interferonopathy due to a Homozygous Loss-of-Inhibitory Function Mutation in STAT2. J Clin Immunol 2023; 43:808-818. [PMID: 36753016 PMCID: PMC10110676 DOI: 10.1007/s10875-023-01445-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/24/2023] [Indexed: 02/09/2023]
Abstract
PURPOSE STAT2 is both an effector and negative regulator of type I interferon (IFN-I) signalling. We describe the characterization of a novel homozygous missense STAT2 substitution in a patient with a type I interferonopathy. METHODS Whole-genome sequencing (WGS) was used to identify the genetic basis of disease in a patient with features of enhanced IFN-I signalling. After stable lentiviral reconstitution of STAT2-null human fibrosarcoma U6A cells with STAT2 wild type or p.(A219V), we performed quantitative polymerase chain reaction, western blotting, immunofluorescence, and co-immunoprecipitation to functionally characterize the p.(A219V) variant. RESULTS WGS identified a rare homozygous single nucleotide transition in STAT2 (c.656C > T), resulting in a p.(A219V) substitution, in a patient displaying developmental delay, intracranial calcification, and up-regulation of interferon-stimulated gene (ISG) expression in blood. In vitro studies revealed that the STAT2 p.(A219V) variant retained the ability to transduce an IFN-I stimulus. Notably, STAT2 p.(A219V) failed to support receptor desensitization, resulting in sustained STAT2 phosphorylation and ISG up-regulation. Mechanistically, STAT2 p.(A219V) showed defective binding to ubiquitin specific protease 18 (USP18), providing a possible explanation for the chronic IFN-I pathway activation seen in the patient. CONCLUSION Our data indicate an impaired negative regulatory role of STAT2 p.(A219V) in IFN-I signalling and that mutations in STAT2 resulting in a type I interferonopathy state are not limited to the previously reported R148 residue. Indeed, structural modelling highlights at least 3 further residues critical to mediating a STAT2-USP18 interaction, in which mutations might be expected to result in defective negative feedback regulation of IFN-I signalling.
Collapse
Affiliation(s)
- Gaofeng Zhu
- MRC Human Genetics Unit, Institute of Genetics and Cancer, The University of Edinburgh, Edinburgh, UK
| | - Mihaly Badonyi
- MRC Human Genetics Unit, Institute of Genetics and Cancer, The University of Edinburgh, Edinburgh, UK
| | - Lina Franklin
- Cytokine Signalling Unit, Institut Pasteur, Paris, France
| | | | - Gillian I Rice
- Division of Evolution, Infection and Genomics, The University of Manchester, Manchester, UK
| | - Anne-Boland-Auge
- Centre National de Recherche en Génomique Humaine (CNRGH), Université Paris-Saclay, CEA, Evry, France
| | - Jean-François Deleuze
- Centre National de Recherche en Génomique Humaine (CNRGH), Université Paris-Saclay, CEA, Evry, France
| | | | - Mathieu Anheim
- Service de Neurologie, Centre de Référence Des Maladies Neurogénétiques Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Fédération de Médecine Translationnelle de Médecine de Strasbourg, Strasbourg, France.,Institut de Génétique Et de Biologie Moléculaire Et Cellulaire, UMR7104, INSERM-U964/CNRS, Université de Strasbourg, Illkirch, France
| | - Anne de Saint-Martin
- Unité de Neurologie Pédiatrique, Centre de Référence Des Epilepsies Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,UMR 7104 INSERM U1258, IGBMC-CNRS, Strasbourg, France
| | | | - Joseph A Marsh
- MRC Human Genetics Unit, Institute of Genetics and Cancer, The University of Edinburgh, Edinburgh, UK
| | - Yanick J Crow
- MRC Human Genetics Unit, Institute of Genetics and Cancer, The University of Edinburgh, Edinburgh, UK. .,Institut Imagine, Paris, France.
| | - Marie-Therese El-Daher
- MRC Human Genetics Unit, Institute of Genetics and Cancer, The University of Edinburgh, Edinburgh, UK
| |
Collapse
|
18
|
Fu Z, He Y, Gao L, Tong X, Zhou L, Zeng J. STAT2/Caspase3 in the diagnosis and treatment of psoriasis. Eur J Clin Invest 2023; 53:e13959. [PMID: 36708067 DOI: 10.1111/eci.13959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/25/2023] [Accepted: 01/25/2023] [Indexed: 01/29/2023]
Abstract
BACKGROUND Psoriasis is a classic chronic recurrent inflammatory skin disease characterized by skin inflammation and abnormal biological behaviour of keratinocytes. Although Signal Transducer And Activator Of Transcription 2 (STAT2) was found to play an important role in the Janus kinase (JAK)-STAT signalling pathway and contribute to the pathogenesis of psoriasis, its exact role in psoriasis remains unclear. METHODS Using bioinformatics analysis, we identified the key pathways that significantly impacted psoriatic lesions. After identifying the critical molecule gene differentially expressed in multiple public databases using the Kyoto Encyclopaedia of Genes and Genomes (KEGG) enrichment analysis, clinical samples were collected to validate the gene's significance. Its functions and underlying mechanism were also investigated in vitro. Lastly, we evaluated the diagnostic and therapeutic power of the target gene using the receiver operating characteristic curve (ROC), and gene association was assessed using Spearman correlation. RESULTS A significant correlation was found between cysteine-aspartic acid protease3 (Caspase3) and STAT2, and functional enrichment analysis revealed that they were both significantly up-regulated in psoriatic skin lesions compared to non-lesional tissues. Functional analysis revealed that Caspase3 functioned downstream of STAT2 in psoriasis. Lastly, we found that Caspase3 and STAT2 could be potential biomarkers for diagnosing and treating psoriasis. CONCLUSIONS In summary, STAT2 overexpression contributes to psoriasis progression by regulating Capase3 phosphorylation to induce excessive apoptosis of keratinocytes. Meanwhile, STAT2 and Capase3 were identified as promising biomarkers for the diagnosis and treatment of psoriasis and could be used for individualized treatments.
Collapse
Affiliation(s)
- Zhibing Fu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yi He
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Lihua Gao
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaoliang Tong
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lu Zhou
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jinrong Zeng
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| |
Collapse
|
19
|
Huang Z, Ding Z, Xu Y, Xi C, He L, Luo H, Guo Q, Huang C. Downregulation of nuclear STAT2 protein in the spinal dorsal horn is involved in neuropathic pain following chronic constriction injury of the rat sciatic nerve. Front Pharmacol 2023; 14:1069331. [PMID: 36744245 PMCID: PMC9890072 DOI: 10.3389/fphar.2023.1069331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 01/04/2023] [Indexed: 01/19/2023] Open
Abstract
Regulation of gene transcription in the spinal dorsal horn (SDH) plays a critical role in the pathophysiology of neuropathic pain. In this study, we investigated whether the transcription factor STAT2 affects neuropathic pain and evaluated its possible mechanisms. A proteomic analysis showed that the nuclear fraction of STAT2 protein in the SDH was downregulated after chronic constriction injury of the rat sciatic nerve, which was associated with the development of neuropathic pain. Similarly, siRNA-induced downregulation of STAT2 in the SDH of naïve rats also resulted in pain hypersensitivity. Using RNA-sequencing analysis, we showed that reduction of nuclear STAT2 after chronic constriction injury was associated with increased expression of microglial activation markers, including the class II transactivator and major histocompatibility complex class II proteins. In addition, siRNA-induced downregulation of STAT2 promoted microglial activation and pro-inflammatory cytokine expression in the SDH. Taken together, these results showed that chronic constriction injury caused downregulation of nuclear STAT2 in the SDH, which may result in microglial activation and development of neuropathic pain. Our findings indicate that restoration of nuclear expression of STAT2 could be a potential pathway for the treatment of neuropathic pain.
Collapse
Affiliation(s)
- Zhifeng Huang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China
| | - Zijing Ding
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China
| | - Yangting Xu
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Caiyun Xi
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China
| | - Liqiong He
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China
| | - Hui Luo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Qulian Guo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Changsheng Huang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China,*Correspondence: Changsheng Huang,
| |
Collapse
|
20
|
Riera E, García-Belmonte R, Madrid R, Pérez-Núñez D, Revilla Y. African swine fever virus ubiquitin-conjugating enzyme pI215L inhibits IFN-I signaling pathway through STAT2 degradation. Front Microbiol 2023; 13:1081035. [PMID: 36713190 PMCID: PMC9880986 DOI: 10.3389/fmicb.2022.1081035] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/20/2022] [Indexed: 01/15/2023] Open
Abstract
African swine fever virus (ASFV) is the causative agent of one of the most lethal diseases affecting domestic pig and wild boar, which is endangering the swine industry due to its rapid expansion. ASFV has developed different mechanisms to evade the host immune response, including inhibition of type I IFN (IFN-I) production and signaling, since IFN-I is a key element in the cellular antiviral response. Here, we report a novel mechanism of evasion of the IFN-I signaling pathway carried out by the ASFV ubiquitin-conjugating enzyme pI215L. Our data showed that pI215L inhibited IFN-stimulated response element (ISRE) activity and the consecutive mRNA induction of the IFN-stimulated genes ISG15 and IFIT1 through the ubiquitination and proteasomal degradation of STAT2. Additionally, by immunofluorescence, co-immunoprecipitation and nucleus-cytoplasm fractionation approaches, we have confirmed the interaction and colocalization of STAT2 and pI215L, in ectopic experiments and during ASFV infection. Moreover, expression of the catalytic mutant (I215L-C85A) did not inhibit the induction of ISG15 and IFIT1, nor the activity of ISRE. Furthermore, we confirmed that STAT2 degradation by pI215L is dependent on its catalytic activity, since expression of the pI215L-C85A mutant did not affect STAT2 levels, compared to the wild-type protein. Yet, our data reveal that the interaction of pI215L with STAT2 does not require the integrity of its catalytic domain since the pI215L-C85A mutant co-immunoprecipitates with STAT2. All these findings reveal, for the first time, the involvement of E2-ubiquitin-conjugating enzyme activity of pI215L in the immune response modulation.
Collapse
Affiliation(s)
- Elena Riera
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, Madrid, Spain
| | - Raquel García-Belmonte
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, Madrid, Spain
| | - Ricardo Madrid
- Bioassays SL, UAM, Madrid, Spain,Department of Genetics, Physiology and Microbiology, Faculty of Biological Sciences, Biology, UCM, Madrid, Spain
| | - Daniel Pérez-Núñez
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, Madrid, Spain
| | - Yolanda Revilla
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, Madrid, Spain,*Correspondence: Yolanda Revilla, ✉
| |
Collapse
|
21
|
Cheon H, Wang Y, Wightman SM, Jackson MW, Stark GR. How cancer cells make and respond to interferon-I. Trends Cancer 2023; 9:83-92. [PMID: 36216730 PMCID: PMC9797472 DOI: 10.1016/j.trecan.2022.09.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/06/2022] [Accepted: 09/12/2022] [Indexed: 11/07/2022]
Abstract
Acute exposure of cancer cells to high concentrations of type I interferon (IFN-I) drives growth arrest and apoptosis, whereas chronic exposure to low concentrations provides important prosurvival advantages. Tyrosine-phosphorylated IFN-stimulated gene (ISG) factor 3 (ISGF3) drives acute deleterious responses to IFN-I, whereas unphosphorylated (U-)ISGF3, lacking tyrosine phosphorylation, drives essential constitutive prosurvival mechanisms. Surprisingly, programmed cell death-ligand 1 (PD-L1), often expressed on the surfaces of tumor cells and well recognized for its importance in inactivating cytotoxic T cells, also has important cell-intrinsic protumor activities, including dampening acute responses to cytotoxic high levels of IFN-I and sustaining the expression of the low levels that benefit tumors. More thorough understanding of the newly recognized complex roles of IFN-I in cancer may lead to the identification of novel therapeutic strategies.
Collapse
Affiliation(s)
- HyeonJoo Cheon
- Department of Oncology, Wayne State University School of Medicine, Karmanos Cancer Institute, Detroit, MI, USA
| | - Yuxin Wang
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Samantha M. Wightman
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Mark W. Jackson
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - George R. Stark
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA,Correspondence: (G.R. Stark)
| |
Collapse
|
22
|
Canar J, Darling K, Dadey R, Gamero AM. The duality of STAT2 mediated type I interferon signaling in the tumor microenvironment and chemoresistance. Cytokine 2023; 161:156081. [PMID: 36327541 PMCID: PMC9720715 DOI: 10.1016/j.cyto.2022.156081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 10/07/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
The tumor microenvironment consists of tumor cells, extracellular matrix, blood vessels, and non-tumor cells such as fibroblasts and immune cells. Crosstalk among components of this cellular ecosystem can transform non-malignant cells and promote tumor invasion and metastasis. Evidence is accumulating that the transcription factor STAT2, a downstream effector of type I interferon (IFN-I) signaling, can either inhibit or promote tumorigenesis depending on the unique environment presented by each type of cancer. STAT2 has long been associated with the canonical JAK/STAT pathway involved in various biological processes including reshaping of the tumor microenvironment and in antitumor immunity. This dichotomous tendency of STAT2 to both inhibit and worsen tumor formation makes the protein a curious, and yet relatively ill-defined player in many cancer pathways involving IFN-I. In this review, we discuss the role of STAT2 in contributing to either a tumorigenic or anti-tumorigenic microenvironment as well as chemoresistance.
Collapse
Affiliation(s)
- Jorge Canar
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Kennedy Darling
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Ryan Dadey
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Ana M Gamero
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States.
| |
Collapse
|
23
|
Qin Y, Liu H, Zhang P, Deng S, Qiu R, Yao L. Molecular cloning, expression and functional analysis of STAT2 in orange-spotted grouper, Epinephelus coioides. Fish Shellfish Immunol 2022; 131:1245-1254. [PMID: 36206998 DOI: 10.1016/j.fsi.2022.09.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Signal transducer and activator of transcription 2 (STAT2) is an important molecule involved in the type I interferon signaling pathway. To better understand the functions of STAT2 in fish immune response, a STAT2 gene from orange-spotted grouper (Epinephelus coioides) (EcSTAT2) was cloned and characterized in this study. EcSTAT2 encoded a 802-amino acid peptide which shared 99.5% and 91.5% identity with giant grouper (Epinephelus lanceolatus) and leopard coral grouper (Plectropomus leopardus), respectively. Amino acid alignment analysis showed that EcSTAT2 contained five conserved domains, including N-terminal protein interaction domain, coiled coil domain (CCD), DNA binding domain (DBD), Src-homology 2 (SH2) domain, and C-terminal transactivation domain (TAD). Phylogenetic analysis indicated that EcSTAT2 clustered into fish STAT2 group and showed the nearest relationship to giant grouper STAT2. In healthy grouper, EcSTAT2 was distributed in all tissues tested, and the expression of EcSTAT2 was predominantly detected in spleen, kidney and gill. In vitro, EcSTAT2 expression was significantly increased in response to polyinosinic:polycytidylic acid [poly (I:C)] stimulation and red-spotted grouper nervous necrosis virus (RGNNV) infection. Subcellular localization showed that EcSTAT2 was located in the cytoplasm in a punctate manner. EcSTAT2 overexpression significantly inhibited RGNNV replication, as evidenced by the decreased severity of cytopathic effect (CPE) and the reduced expression levels of viral genes and protein. Consistently, knockdown of EcSTAT2 using small interfering RNA (siRNA) promoted RGNNV replication. Furthermore, EcSTAT2 overexpression increased both interferon (IFN) and interferon stimulated genes (ISGs) expression. In addition, EcSTAT2 knockdown decreased the transcription levels of IFN and ISGs. Together, our data demonstrated that EcSTAT2 exerted antiviral activity against RGNNV through up-regulation of host interferon response.
Collapse
Affiliation(s)
- Yinghui Qin
- College of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang, 473061, China; Key Laboratory of Ecological Security and Collaborative Innovation Centre of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Nanyang, 473061, China; Henan Provincal Engineering and Technology Center of Health Products for Livestock and Poultry, Nanyang, 473061, China
| | - Haixiang Liu
- College of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang, 473061, China; Key Laboratory of Ecological Security and Collaborative Innovation Centre of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Nanyang, 473061, China; Henan Provincal Engineering and Technology Center of Health Products for Livestock and Poultry, Nanyang, 473061, China
| | - Peipei Zhang
- College of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang, 473061, China
| | - Si Deng
- College of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang, 473061, China; Key Laboratory of Ecological Security and Collaborative Innovation Centre of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Nanyang, 473061, China; Henan Provincal Engineering and Technology Center of Health Products for Livestock and Poultry, Nanyang, 473061, China
| | - Reng Qiu
- College of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang, 473061, China; Key Laboratory of Ecological Security and Collaborative Innovation Centre of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Nanyang, 473061, China; Henan Provincal Engineering and Technology Center of Health Products for Livestock and Poultry, Nanyang, 473061, China
| | - Lunguang Yao
- College of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang, 473061, China; Key Laboratory of Ecological Security and Collaborative Innovation Centre of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Nanyang, 473061, China; Henan Provincal Engineering and Technology Center of Health Products for Livestock and Poultry, Nanyang, 473061, China.
| |
Collapse
|
24
|
Yang Y, Luo D, Shao Y, Shan Z, Liu Q, Weng J, He W, Zhang R, Li Q, Wang Z, Li X. circCAPRIN1 interacts with STAT2 to promote tumor progression and lipid synthesis via upregulating ACC1 expression in colorectal cancer. Cancer Commun (Lond) 2022; 43:100-122. [PMID: 36328987 PMCID: PMC9859733 DOI: 10.1002/cac2.12380] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/21/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) generated by back-splicing of precursor mRNAs (pre-mRNAs) are often aberrantly expressed in cancer cells. Accumulating evidence has revealed that circRNAs play a critical role in the progression of several cancers, including colorectal cancer (CRC). However, the current understandings of the emerging functions of circRNAs in CRC lipid metabolism and the underlying molecular mechanisms are still limited. Here, we aimed to explore the role of circCAPRIN1 in regulating CRC lipid metabolism and tumorigenesis. METHODS circRNA microarray was performed with three pairs of tumor and non-tumor tissues from CRC patients. The expression of circRNAs were determined by quantitative PCR (qPCR) and in situ hybridization (ISH). The endogenous levels of circRNAs in CRC cells were manipulated by transfection with lentiviruses overexpressing or silencing circRNAs. The regulatory roles of circRNAs in the occurrence of CRC were investigated both in vitro and in vivo using gene expression array, RNA pull-down/mass spectrometry, RNA immunoprecipitation assay, luciferase reporter assay, chromatin immunoprecipitation analysis, and fluorescence in situ hybridization (FISH). RESULTS Among circRNAs, circCAPRIN1 was most significantly upregulated in CRC tissue specimens. circCAPRIN1 expression was positively correlated with the clinical stage and unfavorable prognosis of CRC patients. Downregulation of circCAPRIN1 suppressed proliferation, migration, and epithelial-mesenchymal transition of CRC cells, while circCAPRIN1 overexpression had opposite effects. RNA sequencing and gene ontology analysis indicated that circCAPRIN1 upregulated the expressions of genes involved in CRC lipid metabolism. Moreover, circCAPRIN1 promoted lipid synthesis by enhancing Acetyl-CoA carboxylase 1 (ACC1) expression. Further mechanistic assays demonstrated that circCAPRIN1 directly bound signal transducer and activator of transcription 2 (STAT2) to activate ACC1 transcription, thus regulating lipid metabolism and facilitating CRC tumorigenesis. CONCLUSIONS These findings revealed the oncogenic role and mechanism of circCAPRIN1 in CRC. circCAPRIN1 interacted with STAT2 to promote CRC tumor progression and lipid synthesis by enhancing the expression of ACC1. circCAPRIN1 may be considered as a novel potential diagnostic and therapeutic target for CRC patients.
Collapse
Affiliation(s)
- Yufei Yang
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghai200032P. R. China,Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032P. R. China
| | - Dakui Luo
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghai200032P. R. China,Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032P. R. China
| | - Yang Shao
- Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032P. R. China,Cancer InstituteFudan University Shanghai Cancer CenterShanghai200032P. R. China
| | - Zezhi Shan
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghai200032P. R. China,Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032P. R. China
| | - Qi Liu
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghai200032P. R. China,Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032P. R. China
| | - Junyong Weng
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghai200032P. R. China,Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032P. R. China
| | - Weijing He
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghai200032P. R. China,Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032P. R. China
| | - Ruoxin Zhang
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghai200032P. R. China,Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032P. R. China
| | - Qingguo Li
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghai200032P. R. China,Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032P. R. China
| | - Ziliang Wang
- Shanghai Municipal Hospital of Traditional Chinese MedicineShanghai University of Traditional Chinese MedicineShanghai200071P. R. China
| | - Xinxiang Li
- Department of Colorectal SurgeryFudan University Shanghai Cancer CenterShanghai200032P. R. China,Department of OncologyShanghai Medical CollegeFudan UniversityShanghai200032P. R. China
| |
Collapse
|
25
|
Gothe F, Stremenova Spegarova J, Hatton CF, Griffin H, Sargent T, Cowley SA, James W, Roppelt A, Shcherbina A, Hauck F, Reyburn HT, Duncan CJA, Hambleton S. Aberrant inflammatory responses to type I interferon in STAT2 or IRF9 deficiency. J Allergy Clin Immunol 2022; 150:955-964.e16. [PMID: 35182547 DOI: 10.1016/j.jaci.2022.01.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 12/13/2021] [Accepted: 01/14/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Inflammatory phenomena such as hyperinflammation or hemophagocytic lymphohistiocytosis are a frequent yet paradoxical accompaniment to virus susceptibility in patients with impairment of type I interferon (IFN-I) signaling caused by deficiency of signal transducer and activator of transcription 2 (STAT2) or IFN regulatory factor 9 (IRF9). OBJECTIVE We hypothesized that altered and/or prolonged IFN-I signaling contributes to inflammatory complications in these patients. METHODS We explored the signaling kinetics and residual transcriptional responses of IFN-stimulated primary cells from individuals with complete loss of one of STAT1, STAT2, or IRF9 as well as gene-edited induced pluripotent stem cell-derived macrophages. RESULTS Deficiency of any IFN-stimulated gene factor 3 component suppressed but did not abrogate IFN-I receptor signaling, which was abnormally prolonged, in keeping with insufficient induction of negative regulators such as ubiquitin-specific peptidase 18 (USP18). In cells lacking either STAT2 or IRF9, this late transcriptional response to IFN-α2b mimicked the effect of IFN-γ. CONCLUSION Our data suggest a model wherein the failure of negative feedback of IFN-I signaling in STAT2 and IRF9 deficiency leads to immune dysregulation. Aberrant IFN-α receptor signaling in STAT2- and IRF9-deficient cells switches the transcriptional output to a prolonged, IFN-γ-like response and likely contributes to clinically overt inflammation in these individuals.
Collapse
Affiliation(s)
- Florian Gothe
- Immunity and Inflammation Theme, Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom; Department of Pediatrics, Dr von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität Munich, Munich, Germany
| | - Jarmila Stremenova Spegarova
- Immunity and Inflammation Theme, Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom
| | - Catherine F Hatton
- Immunity and Inflammation Theme, Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom
| | - Helen Griffin
- Immunity and Inflammation Theme, Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom
| | - Thomas Sargent
- Immunity and Inflammation Theme, Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom
| | - Sally A Cowley
- James & Lillian Martin Centre for Stem Cell Research, Sir William Dunn School of Pathology, Oxford University, Oxford, United Kingdom
| | - William James
- James & Lillian Martin Centre for Stem Cell Research, Sir William Dunn School of Pathology, Oxford University, Oxford, United Kingdom
| | - Anna Roppelt
- Department of Immunology, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Anna Shcherbina
- Department of Immunology, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Fabian Hauck
- Department of Pediatrics, Dr von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität Munich, Munich, Germany
| | - Hugh T Reyburn
- Department of Immunology and Oncology, Spanish Center for Biotechnology (CNB-CSIC), Madrid, Spain
| | - Christopher J A Duncan
- Immunity and Inflammation Theme, Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom; Infection and Tropical Medicine, Royal Victoria Infirmary, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom.
| | - Sophie Hambleton
- Immunity and Inflammation Theme, Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom; Children's Immunology Service, Great North Children's Hospital, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom.
| |
Collapse
|
26
|
Duodu P, Sosa G, Canar J, Chhugani O, Gamero AM. Exposing the Two Contrasting Faces of STAT2 in Inflammation. J Interferon Cytokine Res 2022; 42:467-481. [PMID: 35877097 PMCID: PMC9527059 DOI: 10.1089/jir.2022.0117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 06/27/2022] [Indexed: 11/12/2022] Open
Abstract
Inflammation is a natural immune defense mechanism of the body's response to injury, infection, and other damaging triggers. Uncontrolled inflammation may become chronic and contribute to a range of chronic inflammatory diseases. Signal transducer and activator of transcription 2 (STAT2) is an essential transcription factor exclusive to type I and type III interferon (IFN) signaling pathways. Both pathways are involved in multiple biological processes, including powering the immune system as a means of controlling infection that must be tightly regulated to offset the development of persistent inflammation. While studies depict STAT2 as protective in promoting host defense, new evidence is accumulating that exposes the deleterious side of STAT2 when inappropriately regulated, thus prompting its reevaluation as a signaling molecule with detrimental effects in human disease. This review aims to provide a comprehensive summary of the findings based on literature regarding the inflammatory behavior of STAT2 in microbial infections, cancer, autoimmune, and inflammatory diseases. In conveying the extent of our knowledge of STAT2 as a proinflammatory mediator, the aim of this review is to stimulate further investigations into the role of STAT2 in diseases characterized by deregulated inflammation and the mechanisms responsible for triggering severe responses.
Collapse
Affiliation(s)
- Philip Duodu
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Geohaira Sosa
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Jorge Canar
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Olivia Chhugani
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Ana M. Gamero
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| |
Collapse
|
27
|
Xue B, Li H, Liu S, Feng Q, Xu Y, Deng R, Chen S, Wang J, Li X, Wan M, Tang S, Zhu H. The redox cycling of STAT2 maintains innate immune homeostasis. Cell Rep 2022; 40:111215. [PMID: 35977519 DOI: 10.1016/j.celrep.2022.111215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/30/2022] [Accepted: 07/22/2022] [Indexed: 11/30/2022] Open
Abstract
Interferons (IFNs) are essential in antiviral defense, antitumor effects, and immunoregulatory activities. Although methionine oxidation is associated with various physiological and pathophysiological processes in plants, animals, and humans, its role in immunity remains unclear. We find that the redox cycling of signal transducer and activator of transcription 2 (STAT2) is an intrinsic cellular biological process, and that impairment of the redox status contributes to STAT2 methionine oxidation, inhibiting its activation. IFN protects STAT2 from methionine oxidation through the recruitment of methionine sulfoxide reductase MSRB2, whose enzymatic activity is enhanced by N-acetyltransferase 9 (NAT9), a chaperone of STAT2 defined in this study, upon IFN treatment. Consequently, loss of Nat9 renders mice more susceptible to viral infection. Our study highlights the key function of methionine oxidation in immunity, which provides evidence for the decline of immune function by aging and may provide insights into the clinical applications of IFN in immune-related diseases.
Collapse
Affiliation(s)
- Binbin Xue
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China
| | - Huiyi Li
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China
| | - Shun Liu
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China
| | - Qing Feng
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China
| | - Yan Xu
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China
| | - Rilin Deng
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China
| | - Shengwen Chen
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China
| | - Jingjing Wang
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China
| | - Xinran Li
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China
| | - Mengyu Wan
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China
| | - Songqing Tang
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China
| | - Haizhen Zhu
- Institute of Pathogen Biology and Immunology of College of Biology, Hunan Provincial Key Laboratory of Medical Virology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan, China; Research Center of Cancer Prevention and Treatment, Translational Medicine Research Center of Liver Cancer, Hunan Cancer Hospital, Changsha, Hunan, China.
| |
Collapse
|
28
|
Huang C, Wang N, Zhang N, Chen Z, Ni Z, Liu X, Xiong H, Xie H, Lin B, Ge B, Huang Q, Du B. Multi-omics analysis for potential inflammation-related genes involved in tumour immune evasion via extended application of epigenetic data. Open Biol 2022; 12:210375. [PMID: 35946310 PMCID: PMC9364145 DOI: 10.1098/rsob.210375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Accumulating evidence suggests that inflammation-related genes may play key roles in tumour immune evasion. Programmed cell death ligand 1 (PD-L1) is an important immune checkpoint involved in mediating anti-tumour immunity. We performed multi-omics analysis to explore key inflammation-related genes affecting the transcriptional regulation of PD-L1 expression. The open chromatin region of the PD-L1 promoter was mapped using the assay for transposase-accessible chromatin using sequencing (ATAC-seq) profiles. Correlation analysis of epigenetic data (ATAC-seq) and transcriptome data (RNA-seq) were performed to identify inflammation-related transcription factors (TFs) whose expression levels were correlated with the chromatin accessibility of the PD-L1 promoter. Chromatin immunoprecipitation sequencing (ChIP-seq) profiles were used to confirm the physical binding of the TF STAT2 and the predicted binding regions. We also confirmed the results of the bioinformatics analysis with cell experiments. We identified chr9 : 5449463-5449962 and chr9 : 5450250-5450749 as reproducible open chromatin regions in the PD-L1 promoter. Moreover, we observed a correlation between STAT2 expression and the accessibility of the aforementioned regions. Furthermore, we confirmed its physical binding through ChIP-seq profiles and demonstrated the regulation of PD-L1 by STAT2 overexpression in vitro. Multiple databases were also used for the validation of the results. Our study identified STAT2 as a direct upstream TF regulating PD-L1 expression. The interaction of STAT2 and PD-L1 might be associated with tumour immune evasion in cancers, suggesting the potential value for tumour treatment.
Collapse
Affiliation(s)
- Chenshen Huang
- Department of Gastrointestinal Surgery, Fujian Provincial Hospital, Fuzhou, People's Republic of China.,Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, People's Republic of China.,Department of General Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China.,Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, People's Republic of China
| | - Ning Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, People's Republic of China.,Huzhou Central Hospital, Affiliated Hospital of Zhejiang University, Huzhou, People's Republic of China
| | - Na Zhang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, People's Republic of China
| | - Zhizhong Chen
- Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, People's Republic of China
| | - Zhizhan Ni
- Department of General Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Xiaohong Liu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, People's Republic of China
| | - Hao Xiong
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, People's Republic of China
| | - Huahao Xie
- Department of General Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Boxu Lin
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, People's Republic of China
| | - Bujun Ge
- Department of General Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Qi Huang
- Department of General Surgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China
| | - Bing Du
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, People's Republic of China
| |
Collapse
|
29
|
Rothemund F, Scherer M, Schilling EM, Schweininger J, Muller YA, Stamminger T. Cross-Species Analysis of Innate Immune Antagonism by Cytomegalovirus IE1 Protein. Viruses 2022; 14:v14081626. [PMID: 35893691 PMCID: PMC9331606 DOI: 10.3390/v14081626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/18/2022] [Accepted: 07/22/2022] [Indexed: 11/18/2022] Open
Abstract
The human cytomegalovirus (CMV) immediate early 1 (IE1) protein has evolved as a multifunctional antagonist of intrinsic and innate immune mechanisms. In addition, this protein serves as a transactivator and potential genome maintenance protein. Recently, the crystal structures of the human and rat CMV IE1 (hIE1, rIE1) core domain were solved. Despite low sequence identity, the respective structures display a highly similar, all alpha-helical fold with distinct variations. To elucidate which activities of IE1 are either species-specific or conserved, this study aimed at a comparative analysis of hIE1 and rIE1 functions. To facilitate the quantitative evaluation of interactions between IE1 and cellular proteins, a sensitive NanoBRET assay was established. This confirmed the species-specific interaction of IE1 with the cellular restriction factor promyelocytic leukemia protein (PML) and with the DNA replication factor flap endonuclease 1 (FEN1). To characterize the respective binding surfaces, helix exchange mutants were generated by swapping hIE1 helices with the corresponding rIE1 helices. Interestingly, while all mutants were defective for PML binding, loss of FEN1 interaction was confined to the exchange of helices 1 and 2, suggesting that FEN1 binds to the stalk region of IE1. Furthermore, our data reveal that both hIE1 and rIE1 antagonize human STAT2; however, distinct regions of the respective viral proteins mediated the interaction. Finally, while PML, FEN1, and STAT2 binding were conserved between primate and rodent proteins, we detected that rIE1 lacks a chromatin tethering function suggesting that this activity is dispensable for rat CMV. In conclusion, our study revealed conserved and distinct functions of primate and rodent IE1 proteins, further supporting the concept that IE1 proteins underwent a narrow co-evolution with their respective hosts to maximize their efficacy in antagonizing innate immune mechanisms and supporting viral replication.
Collapse
Affiliation(s)
- Franziska Rothemund
- Institute of Virology, Ulm University Medical Center, 89081 Ulm, Germany; (F.R.); (M.S.); (E.-M.S.)
| | - Myriam Scherer
- Institute of Virology, Ulm University Medical Center, 89081 Ulm, Germany; (F.R.); (M.S.); (E.-M.S.)
| | - Eva-Maria Schilling
- Institute of Virology, Ulm University Medical Center, 89081 Ulm, Germany; (F.R.); (M.S.); (E.-M.S.)
| | - Johannes Schweininger
- Division of Biotechnology, Department of Biology, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany; (J.S.); (Y.A.M.)
| | - Yves A. Muller
- Division of Biotechnology, Department of Biology, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany; (J.S.); (Y.A.M.)
| | - Thomas Stamminger
- Institute of Virology, Ulm University Medical Center, 89081 Ulm, Germany; (F.R.); (M.S.); (E.-M.S.)
- Correspondence: ; Tel.: +49-73150065100
| |
Collapse
|
30
|
Wang Z, Chen W, Zuo L, Xu M, Wu Y, Huang J, Zhang X, Li Y, Wang J, Chen J, Wang H, Sun H. The Fibrillin-1/VEGFR2/ STAT2 signaling axis promotes chemoresistance via modulating glycolysis and angiogenesis in ovarian cancer organoids and cells. Cancer Commun (Lond) 2022; 42:245-265. [PMID: 35234370 PMCID: PMC8923131 DOI: 10.1002/cac2.12274] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 10/31/2021] [Accepted: 02/07/2022] [Indexed: 12/14/2022] Open
Abstract
Background Chemotherapy resistance is a primary reason of ovarian cancer therapy failure; hence it is important to investigate the underlying mechanisms of chemotherapy resistance and develop novel potential therapeutic targets. Methods RNA sequencing of cisplatin‐resistant and ‐sensitive (chemoresistant and chemosensitive, respectively) ovarian cancer organoids was performed, followed by detection of the expression level of fibrillin‐1 (FBN1) in organoids and clinical specimens of ovarian cancer. Subsequently, glucose metabolism, angiogenesis, and chemosensitivity were analyzed in structural glycoprotein FBN1‐knockout cisplatin‐resistant ovarian cancer organoids and cell lines. To gain insights into the specific functions and mechanisms of action of FBN1 in ovarian cancer, immunoprecipitation, silver nitrate staining, mass spectrometry, immunofluorescence, Western blotting, and Fӧrster resonance energy transfer‐fluorescence lifetime imaging analyses were performed, followed by in vivo assays using vertebrate model systems of nude mice and zebrafish. Results FBN1 expression was significantly enhanced in cisplatin‐resistant ovarian cancer organoids and tissues, indicating that FBN1 might be a key factor in chemoresistance of ovarian cancer. We also discovered that FBN1 sustained the energy stress and induced angiogenesis in vitro and in vivo, which promoted the cisplatin‐resistance of ovarian cancer. Knockout of FBN1 combined with treatment of the antiangiogenic drug apatinib improved the cisplatin‐sensitivity of ovarian cancer cells. Mechanistically, FBN1 mediated the phosphorylation of vascular endothelial growth factor receptor 2 (VEGFR2) at the Tyr1054 residue, which activated its downstream focal adhesion kinase (FAK)/protein kinase B (PKB or AKT) pathway, induced the phosphorylation of signal transducer and activator of transcription 2 (STAT2) at the tyrosine residue 690 (Tyr690), promoted the nuclear translocation of STAT2, and ultimately altered the expression of genes associated with STAT2‐mediated angiogenesis and glycolysis. Conclusions The FBN1/VEGFR2/STAT2 signaling axis may induce chemoresistance of ovarian cancer cells by participating in the process of glycolysis and angiogenesis. The present study suggested a novel FBN1‐targeted therapy and/or combination of FBN1 inhibition and antiangiogenic drug for treating ovarian cancer.
Collapse
Affiliation(s)
- Ziliang Wang
- Department of Obstetrics and Gynecology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200092, P. R. China.,Institute of Cancer Research and Department of Gynecology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China
| | - Wei Chen
- Department of Reproductive Medicine Center, Zhongshan Hospital, Fudan University, Shanghai, 200032, P. R. China
| | - Ling Zuo
- Institute of Cancer Research and Department of Gynecology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China
| | - Midie Xu
- Department of Pathology and Biobank, Fudan University Shanghai Cancer Center, Shanghai, 200032, P. R. China
| | - Yong Wu
- Department of Gynecological Oncology, Fudan University Shanghai Cancer Center, Shanghai, 200032, P. R. China
| | - Jiami Huang
- Institute of Cancer Research and Department of Gynecology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China
| | - Xu Zhang
- Institute of Cancer Research and Department of Gynecology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China
| | - Yongheng Li
- Institute of Cancer Research and Department of Gynecology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China
| | - Jing Wang
- Department of Reproductive Medicine Center, Zhongshan Hospital, Fudan University, Shanghai, 200032, P. R. China
| | - Jing Chen
- Institute of Cancer Research and Department of Gynecology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, P. R. China
| | - Husheng Wang
- Department of Obstetrics and Gynecology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200092, P. R. China
| | - Huizhen Sun
- Department of Obstetrics and Gynecology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200092, P. R. China
| |
Collapse
|
31
|
Wang D, Fu Z, Gao L, Zeng J, Xiang Y, Zhou L, Tong X, Wang XQ, Lu J. Increased IRF9- STAT2 signaling leads to adaptive resistance toward targeted therapy in melanoma by restraining GSDME-dependent pyroptosis. J Invest Dermatol 2022; 142:2476-2487.e9. [PMID: 35148998 DOI: 10.1016/j.jid.2022.01.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 01/12/2022] [Accepted: 01/18/2022] [Indexed: 12/28/2022]
Abstract
Melanoma is the leading cause of cutaneous malignancy death. BRAF inhibitors (BRAFis) have been developed as target therapies because nearly half of melanoma patients have activating mutations in the BRAF oncogene. However, the fast-developed resistance of BRAFis limits its treatment efficacy. Understanding the molecular mechanism of resistance is vital to increase the success of clinical treatment. We searched three datasets (GSE42872, GSE52882, and GSE106321) from the Gene Expression Omnibus (GEO), which analyzed the mRNA expression profile in melanoma cells under BRAFis treatment, and the differentially expressed genes (DEGs) were identified. Among all the DEGs, increased expression of IRF9 and STAT2 was distinguished and verified to be upregulated in BRAFis-treated melanoma cells. Furthermore, IRF9 or STAT2 overexpression led to less sensitivity, while IRF9 or STAT2 knockdown increased sensitivity to BRAFis treatment. In a subcutaneous xenograft tumor model, we demonstrated that IRF9 or STAT2 overexpression slowed BRAFis-induced tumor shrank, but IRF9 or STAT2 knockdown led to BRAFis-induced tumor shrank more quickly. More interestingly, we discovered that IRF9-STAT2 signaling controlled GSDME-dependent pyroptosis by restoring GSDME transcription. These results suggest that targeting IRF9/STAT2 may lead to more promising effective treatments to prevent melanoma resistance to BRAFis by inducing pyroptosis.
Collapse
Affiliation(s)
- Dan Wang
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, 410013 P. R. China
| | - Zhibing Fu
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, 410013 P. R. China
| | - Lihua Gao
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, 410013 P. R. China
| | - Jinrong Zeng
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, 410013 P. R. China
| | - Yaping Xiang
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, 410013 P. R. China
| | - Lu Zhou
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, 410013 P. R. China
| | - Xiaoliang Tong
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, 410013 P. R. China
| | - Xiao-Qi Wang
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Jianyun Lu
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, 410013 P. R. China.
| |
Collapse
|
32
|
Yang L, Chen S, Zhao Q, Pan C, Peng L, Han Y, Li L, Ruan J, Xia J, Yang H, Xu F, Cheng G. Histone deacetylase 3 contributes to the antiviral innate immunity of macrophages by interacting with FOXK1 to regulate STAT1/2 transcription. Cell Rep 2022; 38:110302. [PMID: 35081346 DOI: 10.1016/j.celrep.2022.110302] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 11/16/2021] [Accepted: 01/05/2022] [Indexed: 12/15/2022] Open
Abstract
It is well known that interferon (IFN)-α/-β activates the JAK/STAT signaling pathway and suppresses viral replication through the induction of IFN stimulated genes (ISGs). Here, we report that knockout of HDAC3 from macrophages results in the decreased expression of STAT1 and STAT2, leading to defective antiviral immunity in cells and mice. Further studies show that HDAC3 interacts with a conserved transcription factor Forkhead Box K1 (FOXK1), co-localizes with FOXK1 at the promoter of STAT1 and STAT2, and is required for protecting FOXK1 from lysosomal system-mediated degradation. FOXK1-deficient macrophages also show low STAT1 and STAT2 expression with defective responses to viruses. Thus, our studies uncover the biological importance of HDAC3 in regulating the antiviral immunity of macrophages through interacting with FOXK1 to regulate the expression of STAT1 and STAT2.
Collapse
|
33
|
Parisien JP, Lenoir JJ, Alvarado G, Horvath CM. The Human STAT2 Coiled-Coil Domain Contains a Degron for Zika Virus Interferon Evasion. J Virol 2022; 96:e0130121. [PMID: 34643427 PMCID: PMC8754212 DOI: 10.1128/jvi.01301-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 10/04/2021] [Indexed: 11/20/2022] Open
Abstract
The ability of viruses to evade the host antiviral immune system determines their level of replication fitness, species specificity, and pathogenic potential. Flaviviruses rely on the subversion of innate immune barriers, including the type I and type III interferon (IFN) antiviral systems. Zika virus infection induces the degradation of STAT2, an essential component of the IFN-stimulated gene transcription factor ISGF3. The mechanisms that lead to STAT2 degradation by Zika virus are poorly understood, but it is known to be mediated by the viral NS5 protein that binds to STAT2 and targets it for proteasome-mediated destruction. To better understand how NS5 engages and degrades STAT2, functional analysis of the protein interactions that lead to Zika virus and NS5-dependent STAT2 proteolysis were investigated. Data implicate the STAT2 coiled-coil domain as necessary and sufficient for NS5 interaction and proteasome degradation after Zika virus infection. Molecular dissection reveals that the first two α-helices of the STAT2 coiled-coil domain contain a specific targeting region for IFN antagonism. These functional interactions provide a more complete understanding of the essential protein-protein interactions needed for Zika virus evasion of the host antiviral response and identify new targets for antiviral therapeutic approaches. IMPORTANCE Zika virus infection can cause mild fever, rash, and muscle pain and in rare cases can lead to brain or nervous system diseases, including Guillain-Barré syndrome. Infections in pregnant women can increase the risk of miscarriage or serious birth defects, including brain anomalies and microcephaly. There are no drugs or vaccines for Zika disease. Zika virus is known to break down the host antiviral immune response, and this research project reveals how the virus suppresses interferon signaling, and may reveal therapeutic vulnerabilities.
Collapse
Affiliation(s)
- Jean-Patrick Parisien
- Department of Molecular Biosciences, Northwestern University, Evanston, Illinois, USA
| | - Jessica J. Lenoir
- Department of Molecular Biosciences, Northwestern University, Evanston, Illinois, USA
| | - Gloria Alvarado
- Department of Molecular Biosciences, Northwestern University, Evanston, Illinois, USA
| | - Curt M. Horvath
- Department of Molecular Biosciences, Northwestern University, Evanston, Illinois, USA
| |
Collapse
|
34
|
Fanunza E, Grandi N, Quartu M, Carletti F, Ermellino L, Milia J, Corona A, Capobianchi MR, Ippolito G, Tramontano E. INMI1 Zika Virus NS4B Antagonizes the Interferon Signaling by Suppressing STAT1 Phosphorylation. Viruses 2021; 13:2448. [PMID: 34960717 DOI: 10.3390/v13122448] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/22/2021] [Accepted: 12/02/2021] [Indexed: 12/17/2022] Open
Abstract
The evasion of the Interferon response has important implications in Zika virus (ZIKV) disease. Mutations in ZIKV viral protein NS4B, associated with modulation of the interferon (IFN) system, have been linked to increased pathogenicity in animal models. In this study, we unravel ZIKV NS4B as antagonist of the IFN signaling cascade. Firstly, we reported the genomic characterization of NS4B isolated from a strain of the 2016 outbreak, ZIKV Brazil/2016/INMI1, and we predicted its membrane topology. Secondly, we analyzed its phylogenetic correlation with other flaviviruses, finding a high similarity with dengue virus 2 (DEN2) strains; in particular, the highest conservation was found when NS4B was aligned with the IFN inhibitory domain of DEN2 NS4B. Hence, we asked whether ZIKV NS4B was also able to inhibit the IFN signaling cascade, as reported for DEN2 NS4B. Our results showed that ZIKV NS4B was able to strongly inhibit the IFN stimulated response element and the IFN-γ-activated site transcription, blocking IFN-I/-II responses. mRNA expression levels of the IFN stimulated genes ISG15 and OAS1 were also strongly reduced in presence of NS4B. We found that the viral protein was acting by suppressing the STAT1 phosphorylation and consequently blocking the nuclear transport of both STAT1 and STAT2.
Collapse
|
35
|
Riera E, Pérez-Núñez D, García-Belmonte R, Miorin L, García-Sastre A, Revilla Y. African Swine Fever Virus Induces STAT1 and STAT2 Degradation to Counteract IFN-I Signaling. Front Microbiol 2021; 12:722952. [PMID: 34512601 PMCID: PMC8427279 DOI: 10.3389/fmicb.2021.722952] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/05/2021] [Indexed: 12/24/2022] Open
Abstract
African swine fever virus (ASFV) causes a serious disease in domestic pigs and wild boars and is currently expanding worldwide. No safe and efficacious vaccines against ASFV are available, which threats the swine industry worldwide. African swine fever virus (ASFV) is a complex dsDNA virus that displays multiple mechanisms to counteract the host innate immune response, whose efficacy might determine the different degrees of virulence displayed by attenuated and virulent ASFV strains. Here we report that infection with both virulent Arm/07/CBM/c2 and attenuated NH/P68 strains prevents interferon-stimulated gene (ISG) expression in interferon (IFN)-treated cells by counteracting the JAK/STAT pathway. This inhibition results in an impaired nuclear translocation of the interferon-stimulated gene factor 3 (ISGF3) complex, as well as in the proteasome-dependent STAT2 degradation and caspase 3-dependent STAT1 cleavage. The existence of two independent mechanisms of control of the JAK/STAT pathway, suggests the importance of preventing this pathway for successful viral replication. As ASFV virulence is likely associated with the efficacy of the IFN signaling inhibitory mechanisms, a better understanding of these IFN antagonistic properties may lead to new strategies to control this devastating pig disease.
Collapse
Affiliation(s)
- Elena Riera
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, c/Nicolás Cabrera, Madrid, Spain
| | - Daniel Pérez-Núñez
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, c/Nicolás Cabrera, Madrid, Spain
| | - Raquel García-Belmonte
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, c/Nicolás Cabrera, Madrid, Spain
| | - Lisa Miorin
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Icahn School of Medicine at Mount Sinai, Global Health and Emergent Pathogens Institute, New York, NY, United States
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Icahn School of Medicine at Mount Sinai, Global Health and Emergent Pathogens Institute, New York, NY, United States.,Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States.,Icahn School of Medicine at Mount Sinai, The Tisch Cancer Institute, New York, NY, United States.,Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Yolanda Revilla
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, c/Nicolás Cabrera, Madrid, Spain
| |
Collapse
|
36
|
Li SX, Yan W, Liu JP, Zhao YJ, Chen L. Long noncoding RNA SNHG4 remits lipopolysaccharide-engendered inflammatory lung damage by inhibiting METTL3 - Mediated m 6A level of STAT2 mRNA. Mol Immunol 2021; 139:10-22. [PMID: 34450538 DOI: 10.1016/j.molimm.2021.08.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/22/2021] [Accepted: 08/12/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Emerging evidence suggests that long non coding RNA (lncRNA) small nucleolar RNA host gene 4 (SNHG4) has become a new insight into lipopolysaccharide (LPS)-induced microglia inflammation, its role in neonatal pneumonia (NP) remains to be largely unrevealed. METHODS RT-qPCR was used to determine the expression of SNHG4 and METTL3 in the serum from NP patients and normal volunteers, as well as in LPS treated-WI-38 cells. The SNHG4 overexpression vector (pcDNA-SNHG4) was transfected into LPS-treated cells. CCK-8, Transwell, annexin V-FITC/PI, ELISA and Western blot assays were used to determine cell proliferation, migration, apoptosis, contents of IL-6, TNF-α, SOD and MDA, as well as the expression levels of NF-κB pathway proteins, respectively. The enrichment of SNHG4 in the METTL3 promoter region was assessed with RIP assay. m6A quantitative analysis illustrated the m6A level with or without SNHG4 overexpression or METTL3 silencing. Bioinformatics analysis and RIP-PCR were used to predict and validate YTHDF1-mediated m6A levels on signal transducer and activator of transcription 2 (STAT2) mRNA in METTL3 inhibited cells. Then rescue experiments were performed to explore effects of SNHG4 and METTL3 or STAT2 on LPS-treated cell functions. Subsequently, in vivo functional experiments were performed to investigate the role of SNHG4 in LPS induced pneumonia in mice. RESULTS SNHG4 was downregulated, and METTL3 was upregulated in NP patients and LPS-treated cells. SNHG4 overexpression facilitated cell proliferation, migration and SOD concentration, as well as inhibited cell apoptosis and production of IL-6, TNF-α and MDA, and suppressed the expression of NF-κB pathway proteins. Mechanistically, SNHG4 bound with METTL3 and downregulated METTL3 expression. Besides, total m6A level was lower in the SNHG4 overexpressed or METTL3 inhibited cells. METTL3 interference reduced m6A levels of STAT2 mRNA, decreased STAT2 mRNA stability and promoted STAT2 translation level. Upregulation of METTL3 or STAT2 reversed the effects of SNHG4 overexpression on LPS-treated cell functions. CONCLUSIONS This study reveals that SNHG4 promotes LPS induced inflammation in human lung fibroblasts and mouse lung tissues in vitro and in vivo by inhibiting METTL3-mediated m6A level of STAT2 mRNA, which may provide a potential therapeutic mechanism for NP.
Collapse
Affiliation(s)
- Si-Xiu Li
- Neonatal Intensive Care Unite, Children's Hospital Affiliated to Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710003, China
| | - Wen Yan
- Neonatal Department, Children's Hospital Affiliate to Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710003, China
| | - Jian-Ping Liu
- Neonatal Intensive Care Unite, Children's Hospital Affiliated to Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710003, China
| | - Yu-Juan Zhao
- Neonatal Department, Children's Hospital Affiliate to Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710003, China
| | - Lu Chen
- Neonatal Department, Children's Hospital Affiliate to Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710003, China.
| |
Collapse
|
37
|
Abstract
Flavivirus genus includes numerous arthropod-borne human pathogens that are clinically important. Flaviviruses are notorious for their ability to antagonize host interferon (IFN) induced anti-viral signalling. It has been documented that NS5s of flaviviruses mediate proteasome degradation of STAT2 to evade IFN signalling. Deciphering the molecular mechanism of the IFN antagonism by the viruses and reversing this antagonism may dictate anti-viral responses and provide novel antiviral approaches. In this report, by using Zika virus (ZIKV) as a model, we first demonstrated that ZIKV antagonized interferon signalling in an infectious dose-dependent manner; in other words, the virus antagonized interferon signalling at a high multiple of infection (MOI) and was sensitive to interferon signalling at a low MOI. Mechanistically, we found that ZIKV infection triggered degradation of ubiquitinated STAT2 and host short-lived proteins while didn't affect the proteasome activity per se. ZIKV infection resulted in suppression of host de novo protein synthesis. Overexpression of NS5 alone only marginally reduced STAT2 and had no effect on the host de novo protein synthesis. Ectopically expressed murine STAT2 that was resistant to NS5- and ZIKV-induced ablation exaggerated the IFN-induced anti-viral signalling. These data favour a new model of the innate immune evasion of ZIKV in which the viral infection triggers suppression of host de novo protein synthesis to accelerate the degradation of short-lived, ubiquitinated STAT2. As flaviviruses share a very conserved replication strategy, the mechanisms of IFN antagonism elucidated here might also be employed by other flaviviruses.
Collapse
Affiliation(s)
- Jun Shu
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, and Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, People's Republic of China
| | - Xiao Ma
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, and Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, People's Republic of China
| | - Yang Zhang
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, and Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, People's Republic of China
| | - Jingyi Zou
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, and Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, People's Republic of China
| | - Zhenghong Yuan
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, and Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, People's Republic of China
| | - Zhigang Yi
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, and Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, People's Republic of China.,Shanghai Public Health Clinical Center, Fudan University, Shanghai, People's Republic of China
| |
Collapse
|
38
|
Landau LJB, Fam BSDO, Yépez Y, Caldas-Garcia GB, Pissinatti A, Falótico T, Reales G, Schüler-Faccini L, Sortica VA, Bortolini MC. Evolutionary analysis of the anti-viral STAT2 gene of primates and rodents: Signature of different stages of an arms race. Infect Genet Evol 2021; 95:105030. [PMID: 34384937 DOI: 10.1016/j.meegid.2021.105030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 07/24/2021] [Accepted: 08/06/2021] [Indexed: 02/04/2023]
Abstract
STAT2 plays a strategic role in defending viral infection through the signaling cascade involving the immune system initiated after type I interferon release. Many flaviviruses target the inactivation or degradation of STAT2 as a strategy to impair this host's line of defense. Primates are natural reservoirs for a range of disease-causing flaviviruses (e.g., Zika, Dengue, and Yellow Fever virus), while rodents appear less susceptible. We analyzed the STAT2 coding sequence of 28 Rodentia species and 49 Primates species. Original data from 19 Platyrrhini species were sequenced for the SH2 domain of STAT2 and included in the analysis. STAT2 has many sites whose variation can be explained by positive selection, measurement by two methods (PALM indicated 12, MEME 61). Both evolutionary tests significantly marked sites 127, 731, 739, 766, and 780. SH2 is under evolutionary constraint but presents episodic positive selection events within Rodentia: in one of them, a moderately radical change (serine > arginine) at position 638 is found in Peromyscus species, and can be implicated in the difference in susceptibility to flaviviruses within Rodentia. Some other positively selected sites are functional such as 5, 95, 203, 251, 782, and 829. Sites 251 and 287 regulate the signaling mediated by the JAK-STAT2 pathway, while 782 and 829 create a stable tertiary structure of STAT2, facilitating its connection with transcriptional co-activators. Only three positively selected sites, 5, 95, and 203, are recognized members who act on the interface between STAT2 and flaviviruses NS5 protein. We suggested that due to the higher evolutionary rate, rodents are, at this moment, taking some advantage in the battle against infections for some well-known Flaviviridae, in particular when compared to primates. Our results point to dynamics that fit with a molecular evolutionary scenario shaped by a thought-provoking virus-host arms race.
Collapse
Affiliation(s)
- Luane Jandira Bueno Landau
- Laboratório de Evolução Humana e Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Bibiana Sampaio de Oliveira Fam
- Laboratório de Evolução Humana e Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Yuri Yépez
- Laboratório de Evolução Humana e Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Gabriela Barreto Caldas-Garcia
- Laboratório de Evolução Humana e Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Alcides Pissinatti
- Rio de Janeiro's Primatology Center (RJPC - INEA), Rio de Janeiro, RJ, Brazil
| | - Tiago Falótico
- School of Arts, Sciences and Humanities, University of São Paulo, São Paulo, SP, Brazil
| | - Guillermo Reales
- Laboratório de Evolução Humana e Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Instituto Nacional de Genética Médica Populacional, Serviço de Genética Médica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Lavínia Schüler-Faccini
- Instituto Nacional de Genética Médica Populacional, Serviço de Genética Médica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Vinicius Albuquerque Sortica
- Laboratório de Evolução Humana e Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Maria Cátira Bortolini
- Laboratório de Evolução Humana e Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| |
Collapse
|
39
|
Rojas JM, Avia M, Martín V, Sevilla N. Inhibition of the IFN Response by Bluetongue Virus: The Story So Far. Front Microbiol 2021; 12:692069. [PMID: 34168637 PMCID: PMC8217435 DOI: 10.3389/fmicb.2021.692069] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 05/17/2021] [Indexed: 11/13/2022] Open
Abstract
Bluetongue virus (BTV) is the prototypical orbivirus that belongs to the Reoviridae family. BTV infection produces a disease in ruminants, particularly in sheep, that results in economic losses through reduced productivity. BTV is transmitted by the bite of Culicoides spp. midges and is nowadays distributed globally throughout subtropical and even temperate regions. As most viruses, BTV is susceptible to the IFN response, the first line of defense employed by the immune system to combat viral infections. In turn, BTV has evolved strategies to counter the IFN response and promote its replication. The present review we will revise the works describing how BTV interferes with the IFN response.
Collapse
Affiliation(s)
- José Manuel Rojas
- Centro de Investigación en Sanidad Animal (CISA-INIA), Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Miguel Avia
- Centro de Investigación en Sanidad Animal (CISA-INIA), Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Verónica Martín
- Centro de Investigación en Sanidad Animal (CISA-INIA), Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Noemí Sevilla
- Centro de Investigación en Sanidad Animal (CISA-INIA), Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| |
Collapse
|
40
|
Yang D, Chu H, Lu G, Shuai H, Wang Y, Hou Y, Zhang X, Huang X, Hu B, Chai Y, Yuen TTT, Zhao X, Lee ACY, Ye Z, Li C, Chik KKH, Zhang AJ, Zhou J, Yuan S, Chan JFW. STAT2-dependent restriction of Zika virus by human macrophages but not dendritic cells. Emerg Microbes Infect 2021; 10:1024-1037. [PMID: 33979266 PMCID: PMC8205058 DOI: 10.1080/22221751.2021.1929503] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Zika virus (ZIKV) is an emerging mosquito-borne flavivirus that poses significant threats to global public health. Macrophages and dendritic cells are both key sentinel cells in the host immune response and play critical roles in the pathogenesis of flavivirus infections. Recent studies showed that ZIKV could productively infect monocyte-derived dendritic cells (moDCs), but the role of macrophages in ZIKV infection remains incompletely understood. In this study, we first compared ZIKV infection in monocyte-derived macrophages (MDMs) and moDCs derived from the same donors. We demonstrated that while both MDMs and moDCs were susceptible to epidemic (Puerto Rico) and pre-epidemic (Uganda) strains of ZIKV, virus replication was largely restricted in MDMs but not in moDCs. ZIKV induced significant apoptosis in moDCs but not MDMs. The restricted virus replication in MDMs was not due to inefficient virus entry but was related to post-entry events in the viral replication cycle. In stark contrast with moDCs, ZIKV failed to inhibit STAT1 and STAT2 phosphorylation in MDMs. This resulted in the lack of efficient antagonism of the host type I interferon-mediated antiviral responses. Importantly, depletion of STAT2 but not STAT1 in MDMs significantly rescued the replication of ZIKV and the prototype flavivirus yellow fever virus. Overall, our findings revealed a differential interplay between macrophages and dendritic cells with ZIKV. While dendritic cells may be exploited by ZIKV to facilitate virus replication, macrophages restricted ZIKV infection.
Collapse
Affiliation(s)
- Dong Yang
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Hin Chu
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Gang Lu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, People's Republic of China.,Hainan-Medical University-The University of Hong Kong Joint Laboratory of Tropical Infectious Diseases, Hainan Medical University, Haikou, Hainan, People's Republic of China, and the The University of Hong Kong, Pokfulam, People's Republic of China.,Department of Pathogen Biology, Hainan Medical University, Haikou, Hainan, People's Republic of China
| | - Huiping Shuai
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Yixin Wang
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Yuxin Hou
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Xi Zhang
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Xiner Huang
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Bingjie Hu
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Yue Chai
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Terrence Tsz-Tai Yuen
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Xiaoyu Zhao
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Andrew Chak-Yiu Lee
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Ziwei Ye
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Cun Li
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Kenn Ka-Heng Chik
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Anna Jinxia Zhang
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Jie Zhou
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Shuofeng Yuan
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China
| | - Jasper Fuk-Woo Chan
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Pokfulam, People's Republic of China.,Hainan-Medical University-The University of Hong Kong Joint Laboratory of Tropical Infectious Diseases, Hainan Medical University, Haikou, Hainan, People's Republic of China, and the The University of Hong Kong, Pokfulam, People's Republic of China.,Carol Yu Centre for Infection, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, People's Republic of China.,Department of Microbiology, Queen Mary Hospital, Pokfulam, People's Republic of China.,Department of Clinical Microbiology and Infection Control, The University of Hong Kong-Shenzhen Hospital, Shenzhen, People's Republic of China
| |
Collapse
|
41
|
Le-Trilling VTK, Becker T, Nachshon A, Stern-Ginossar N, Schöler L, Voigt S, Hengel H, Trilling M. The Human Cytomegalovirus pUL145 Isoforms Act as Viral DDB1-Cullin-Associated Factors to Instruct Host Protein Degradation to Impede Innate Immunity. Cell Rep 2021; 30:2248-2260.e5. [PMID: 32075763 DOI: 10.1016/j.celrep.2020.01.070] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 11/10/2019] [Accepted: 01/21/2020] [Indexed: 01/02/2023] Open
Abstract
Human cytomegalovirus (HCMV) causes diseases in individuals with immature or compromised immunity. To evade immune control, HCMV evolved numerous antagonists targeting the interferon system at multiple levels. By comparative analysis of naturally arising variants of the most widely studied HCMV strain, AD169, and a panel of targeted mutants, we uncover the UL145 gene as indispensable for STAT2 downregulation. Ribosome profiling confirms the translation of the canonical pUL145 protein (pUL145-Long) and newly identifies a shorter isoform (pUL145-Short). Both isoforms recruit DDB1-containing ubiquitin ligases to induce proteasomal degradation of STAT2. An alanine-scanning mutagenesis discloses the DDB1 interaction motif of pUL145 that resembles the DDB1-binding interface of cellular substrate receptors of DDB1-containing ubiquitin ligases. Thus, pUL145 constitutes a viral DDB1-cullin-associated factor (vDCAF), which mimics cellular DCAFs to exploit the ubiquitin-proteasome system to impede antiviral immunity. Notably, the viral exploitation of the cullins can be targeted to restore the efficacy of the host immune response.
Collapse
Affiliation(s)
| | - Tanja Becker
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Aharon Nachshon
- The Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Noam Stern-Ginossar
- The Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Lara Schöler
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Sebastian Voigt
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany; Department of Pediatric Oncology/Hematology/SCT, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Hartmut Hengel
- Institute of Virology, Medical Center and Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Mirko Trilling
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
| |
Collapse
|
42
|
Glykofridis IE, Knol JC, Balk JA, Westland D, Pham TV, Piersma SR, Lougheed SM, Derakhshan S, Veen P, Rooimans MA, van Mil SE, Böttger F, Poddighe PJ, van de Beek I, Drost J, Zwartkruis FJ, de Menezes RX, Meijers-Heijboer HE, Houweling AC, Jimenez CR, Wolthuis RM. Loss of FLCN-FNIP1/2 induces a non-canonical interferon response in human renal tubular epithelial cells. eLife 2021; 10:61630. [PMID: 33459596 PMCID: PMC7899648 DOI: 10.7554/elife.61630] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 01/16/2021] [Indexed: 12/14/2022] Open
Abstract
Germline mutations in the Folliculin (FLCN) tumor suppressor gene cause Birt–Hogg–Dubé (BHD) syndrome, a rare autosomal dominant disorder predisposing carriers to kidney tumors. FLCN is a conserved, essential gene linked to diverse cellular processes but the mechanism by which FLCN prevents kidney cancer remains unknown. Here, we show that disrupting FLCN in human renal tubular epithelial cells (RPTEC/TERT1) activates TFE3, upregulating expression of its E-box targets, including RRAGD and GPNMB, without modifying mTORC1 activity. Surprisingly, the absence of FLCN or its binding partners FNIP1/FNIP2 induces interferon response genes independently of interferon. Mechanistically, FLCN loss promotes STAT2 recruitment to chromatin and slows cellular proliferation. Our integrated analysis identifies STAT1/2 signaling as a novel target of FLCN in renal cells and BHD tumors. STAT1/2 activation appears to counterbalance TFE3-directed hyper-proliferation and may influence immune responses. These findings shed light on unique roles of FLCN in human renal tumorigenesis and pinpoint candidate prognostic biomarkers.
Collapse
Affiliation(s)
- Iris E Glykofridis
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Clinical Genetics, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Jaco C Knol
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Jesper A Balk
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Clinical Genetics, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Denise Westland
- University Medical Center Utrecht, Center for Molecular Medicine, Molecular Cancer Research, Universiteitsweg, Utrecht, Netherlands
| | - Thang V Pham
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Sander R Piersma
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Sinéad M Lougheed
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Sepide Derakhshan
- Princess Máxima Center for Pediatric Oncology, Oncode Institute, Heidelberglaan, Utrecht, Netherlands
| | - Puck Veen
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Clinical Genetics, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Martin A Rooimans
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Clinical Genetics, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Saskia E van Mil
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Clinical Genetics, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Franziska Böttger
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Pino J Poddighe
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Clinical Genetics, Amsterdam, Netherlands
| | - Irma van de Beek
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Clinical Genetics, Amsterdam, Netherlands
| | - Jarno Drost
- Princess Máxima Center for Pediatric Oncology, Oncode Institute, Heidelberglaan, Utrecht, Netherlands
| | - Fried Jt Zwartkruis
- University Medical Center Utrecht, Center for Molecular Medicine, Molecular Cancer Research, Universiteitsweg, Utrecht, Netherlands
| | | | - Hanne Ej Meijers-Heijboer
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Clinical Genetics, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Arjan C Houweling
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Clinical Genetics, Amsterdam, Netherlands
| | - Connie R Jimenez
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Rob Mf Wolthuis
- Amsterdam UMC, location VUmc, Vrije Universiteit Amsterdam, Clinical Genetics, Cancer Center Amsterdam, Amsterdam, Netherlands
| |
Collapse
|
43
|
Qiu CC, Kotredes KP, Cremers T, Patel S, Afanassiev A, Slifker M, Gallucci S, Gamero AM. Targeted Stat2 deletion in conventional dendritic cells impairs CTL responses but does not affect antibody production. Oncoimmunology 2020; 10:1860477. [PMID: 33457079 PMCID: PMC7781843 DOI: 10.1080/2162402x.2020.1860477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
STAT2 is a central component of the ISGF3 transcriptional complex downstream of type I interferon (IFN-I) signaling. The significance of in vivo IFN-I/STAT1 signals in cDCs is well-established in the generation of antitumor cytotoxic T cell (CTL) responses. However, the role of STAT2 has remained elusive. Here, we report a clinical correlation between cDC markers and STAT2 associated with better survival in human metastatic melanoma. In a murine tumor transplantation model, targeted Stat2 deletion in CD11c+cDCs enhanced tumor growth unaffected by IFNβ therapy. Furthermore, STAT2 was essential for both, the activation of CD8a+cDCs and CD11b+cDCs and antigen cross-presentation in vivo for the generation of robust T cell killing response. In contrast, STAT2 in CD11c+cDCs was dispensable for stimulating an antigen-specific humoral response, which was impaired in global Stat2 deficient mice. Thus, our studies indicate that STAT2 in cDCs is critical in host IFN-I signals by sculpting CTL responses against tumors.
Collapse
Affiliation(s)
- Connie C Qiu
- Laboratory of Dendritic Cell Biology, Department of Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Kevin P Kotredes
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Tess Cremers
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Sajan Patel
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Alexandra Afanassiev
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Michael Slifker
- Biostatistics and Bioinformatics Facility, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Stefania Gallucci
- Laboratory of Dendritic Cell Biology, Department of Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Ana M Gamero
- Department of Medical Genetics and Molecular Biochemistry, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.,Fels Institute for Cancer Research and Molecular Biology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| |
Collapse
|
44
|
Yang Q, You J, Zhou Y, Wang Y, Pei R, Chen X, Yang M, Chen J. Tick-borne encephalitis virus NS4A ubiquitination antagonizes type I interferon-stimulated STAT1/2 signalling pathway. Emerg Microbes Infect 2020; 9:714-726. [PMID: 32196427 PMCID: PMC7170394 DOI: 10.1080/22221751.2020.1745094] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 12/30/2022]
Abstract
Tick-borne encephalitis virus (TBEV) accounts for approximately 10,000 annual cases of severe encephalitis in Europe and Asia and causes encephalitis in humans. In this study, we demonstrate TBEV appears to activate the interferon (IFN)-β dependent on RIG-I/MDA5. Both the IFN-β accumulation and the IFN stimulated genes (ISGs) transcription greatly delay. Further studies reveal that TBEV NS4A could block the phosphorylation and dimerization of STAT1/STAT2 to affect type I and II IFN-mediated STAT signalling. Additional data indicate that the residue at K132 of TBEV NS4A could be modified by ubiquitination and this modification is necessary for the interaction of NS4A with STAT1. Dynamic ubiquitination of the NS4 protein during TBEV infection might account for delayed activation of the ISGs. These results define the TBEV NS4A as an antagonist of the IFN response, by demonstrating a correlation between the association and STAT interference. Our findings provide a foundation for further understanding how TBEV evade innate immunity and a potential viral target for intervention.
Collapse
Affiliation(s)
- Qi Yang
- Department of Gastroenterology, Guangzhou Women and Children’s Medical Center, Guangzhou, People’s Republic of China
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, People's Republic of China
| | - Jia You
- College of Pharmacy and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, People’s Republic of China
| | - Yuan Zhou
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, People's Republic of China
| | - Yun Wang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, People's Republic of China
| | - Rongjuan Pei
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, People's Republic of China
| | - Xinwen Chen
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, People's Republic of China
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, People’s Republic of China
| | - Min Yang
- Department of Gastroenterology, Guangzhou Women and Children’s Medical Center, Guangzhou, People’s Republic of China
| | - Jizheng Chen
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, People's Republic of China
| |
Collapse
|
45
|
Zong X, Xiao X, Kai L, Cheng Y, Fu J, Xu W, Wang Y, Zhao K, Jin M. Atractylodis macrocephalae polysaccharides protect against DSS-induced intestinal injury through a novel lncRNA ITSN1-OT1. Int J Biol Macromol 2021; 167:76-84. [PMID: 33248053 DOI: 10.1016/j.ijbiomac.2020.11.144] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/12/2020] [Accepted: 11/19/2020] [Indexed: 01/03/2023]
Abstract
Many dietary polysaccharides have been shown to protect the intestinal barrier integrity against several noxious stimuli. Previously, we have isolated a polysaccharide RAMPtp from Atractylodis macrocephalae Koidz, and analyzed its structure. However, the effects of RAMPtp on intestinal barrier function have not been investigated. Here, we evaluated the protective effects of RAMPtp on Dextran sulfate sodium (DSS)-induced intestinal epithelial cells (IECs) injury. The findings showed that RAMPtp boosted the proliferation and survival of IECs during DSS stimulation. Furthermore, we found that RAMPtp protected the IECs from injury induced by DSS through maintaining the barrier function and inflammation response. Mechanistically, we identified a novel lncRNA ITSN1-OT1, which was induced by RAMPtp during DSS stimulation. It blocked the nuclear import of phosphorylated STAT2 to prevent the DSS induced decreased expression and structural destroy of tight junction proteins. Hence, the study clarified the protective effects and mechanism of polysaccharides RAMPtp on DSS-induced intestinal barrier dysfunction.
Collapse
|
46
|
Liang Y, Liu H, Li X, Huang W, Huang B, Xu J, Xiong J, Zhai S. Molecular insight, expression profile and subcellular localization of two STAT family members, STAT1a and STAT2, from Japanese eel, Anguilla japonica. Gene 2020; 769:145257. [PMID: 33164823 DOI: 10.1016/j.gene.2020.145257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/15/2020] [Accepted: 10/20/2020] [Indexed: 12/14/2022]
Abstract
Signal transducer and activator of transcription 1 (STAT1) and STAT2 are critical components of type I and type II IFNs signaling. To date, seven STAT family proteins have been identified from mammals. However, the information on STAT genes in teleost fish is still limited. In the present study, two STAT family genes (STAT1a and STAT2) were identified from Japanese eel, Anguilla japonica and designated as AjSTAT1a and AjSTAT2. The open reading frames of AjSTAT1a and AjSTAT2 are 2244 bp and 2421 bp, encoding for polypeptides of 747 aa and 806 aa, respectively. Both AjSTAT1a and AjSTAT2 contain the conserved domains of STAT proteins. Phylogenetic analysis was performed based on the STATs protein sequences, and showed that AjSTAT1a and AjSTAT2 shared the closest relationship with Oncorhynchus mykiss. Quantitative real-time PCR analysis revealed that AjSTAT1a and AjSTAT2 were expressed in most examined tissues, with the highest expression both in blood. Significantly up-regulated transcripts of AjSTAT1a and AjSTAT2 were detected in response to poly I:C stimulation, and Edwardsiella tarda induced increase in the expression of AjSTAT1a and AjSTAT2 genes. Subcellular localization analysis showed that in both IFNγ-stimulated and unstimulated EPC cells AjSTAT1a and AjSTAT2 were mainly distributed in the cytoplasm, but few AjSTAT1a was distributed in the nucleus. All these results suggested that AjSTAT1a and AjSTAT2 may be critical for regulating the host innate immune defense against pathogens invasion.
Collapse
Affiliation(s)
- Ying Liang
- Fisheries College, Jimei University, Xiamen 361021, China; Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen 361021, China; Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Xiamen 361000, China; Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, P.R. China, Xiamen 361021, China.
| | - Haizi Liu
- Fisheries College, Jimei University, Xiamen 361021, China
| | - Xiang Li
- Fisheries College, Jimei University, Xiamen 361021, China
| | - Wenshu Huang
- Fisheries College, Jimei University, Xiamen 361021, China; Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, P.R. China, Xiamen 361021, China
| | - Bei Huang
- Fisheries College, Jimei University, Xiamen 361021, China; Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, P.R. China, Xiamen 361021, China
| | - Jisong Xu
- Fisheries College, Jimei University, Xiamen 361021, China; Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, P.R. China, Xiamen 361021, China
| | - Jing Xiong
- Fisheries College, Jimei University, Xiamen 361021, China; Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, P.R. China, Xiamen 361021, China
| | - Shaowei Zhai
- Fisheries College, Jimei University, Xiamen 361021, China; Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, P.R. China, Xiamen 361021, China
| |
Collapse
|
47
|
Hu Y, Sun H, Hu J, Zhang X. LncRNA DLX6-AS1 Promotes the Progression of Neuroblastoma by Activating STAT2 via Targeting miR-506-3p. Cancer Manag Res 2020; 12:7451-7463. [PMID: 32904436 PMCID: PMC7455600 DOI: 10.2147/cmar.s252521] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 07/07/2020] [Indexed: 12/12/2022] Open
Abstract
Background Neuroblastoma (NB) is a common malignant tumor of the sympathetic nervous system, mainly disturbing children. Long non-coding RNAs (lncRNAs) serving as promising cancer biomarkers have been well recognized. Our study intends to explore the functions of lncRNA X–inactive specific transcript (DLX6-AS1) in NB and provide a potential action mechanism. Methods The expression of DLX6-AS1, miR-506-3p and signal transducer and activator of transcription 2 (STAT2) was measured by quantitative real-time polymerase chain reaction (qRT-PCR). Cell proliferation was assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and colony formation assay. Cell cycle distribution was determined by flow cytometry assay. The protein level of cell cycle-related markers and STAT2 was detected by Western blot. Glycolysis progress was evaluated according to glucose consumption, lactate production and ATP level. The target genes were predicted by the online database Starbase3.0 and verified by dual-luciferase reporter assay. Results DLX6-AS1 expression was highly elevated in NB tissues and cells. DLX6-AS1 deficiency inhibited NB cell proliferation, cell cycle and glycolysis in vitro. MiR-506-3p was a target of DLX6-AS1, and miR-506-3p absence partly reversed the effects of DLX6-AS1 deficiency. Besides, STAT2 was targeted by miR-506-3p, and its expression was regulated by DLX6-AS1 through miR-506-3p. MiR-506-3p restoration also inhibited NB cell malignant behaviors, and STAT2 overexpression partially abolished the role of miR-506-3p restoration. Moreover, DLX6-AS1 deficiency weakened tumor growth in vivo. Conclusion DLX6-AS1 regulated cell proliferation, cell cycle and glycolysis in vitro and tumor growth in vivo to promote the development of NB by upregulating STAT2 via targeting miR-506-3p.
Collapse
Affiliation(s)
- Yanping Hu
- Department of Pediatrics, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan 471009, People's Republic of China
| | - Huifang Sun
- Department of Pediatrics, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan 471009, People's Republic of China
| | - Jiting Hu
- Department of Pediatrics, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan 471009, People's Republic of China
| | - Xiaomin Zhang
- Department of Pediatrics, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan 471009, People's Republic of China
| |
Collapse
|
48
|
Rogers MC, Miranda-Katz M, Zhang Y, Oury TD, Uccellini MB, García-Sastre A, Williams JV. STAT2 Limits Host Species Specificity of Human Metapneumovirus. Viruses 2020; 12:E724. [PMID: 32635475 PMCID: PMC7412095 DOI: 10.3390/v12070724] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 12/24/2022] Open
Abstract
The host tropism of viral infection is determined by a variety of factors, from cell surface receptors to innate immune signaling. Many viruses encode proteins that interfere with host innate immune recognition in order to promote infection. STAT2 is divergent between species and therefore has a role in species restriction of some viruses. To understand the role of STAT2 in human metapneumovirus (HMPV) infection of human and murine tissues, we first infected STAT2-/- mice and found that HMPV could be serially passaged in STAT2-/-, but not WT, mice. We then used in vitro methods to show that HMPV inhibits expression of both STAT1 and STAT2 in human and primate cells, but not in mouse cells. Transfection of the murine form of STAT2 into STAT2-deficient human cells conferred resistance to STAT2 inhibition. Finally, we sought to understand the in vivo role of STAT2 by infecting hSTAT2 knock-in mice with HMPV, and found that mice had increased weight loss, inhibition of type I interferon signaling, and a Th2-polarized cytokine profile compared to WT mice. These results indicate that STAT2 is a target of HMPV in human infection, while the murine version of STAT2 restricts tropism of HMPV for murine cells and tissue.
Collapse
Affiliation(s)
- Meredith C. Rogers
- Department of Pediatrics, University of Pittsburgh School of Medicine and UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; (M.C.R.); (M.M.-K.); (Y.Z.)
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37212, USA
| | - Margot Miranda-Katz
- Department of Pediatrics, University of Pittsburgh School of Medicine and UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; (M.C.R.); (M.M.-K.); (Y.Z.)
| | - Yu Zhang
- Department of Pediatrics, University of Pittsburgh School of Medicine and UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; (M.C.R.); (M.M.-K.); (Y.Z.)
| | - Tim D. Oury
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA;
| | - Melissa B. Uccellini
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (M.B.U.); (A.G.-S.)
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (M.B.U.); (A.G.-S.)
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - John V. Williams
- Department of Pediatrics, University of Pittsburgh School of Medicine and UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; (M.C.R.); (M.M.-K.); (Y.Z.)
- Institute for Infection, Inflammation, and Immunity in Children (i4Kids), University of Pittsburgh, Pittsburgh, PA 15224, USA
| |
Collapse
|
49
|
Walter KR, Balko JM, Hagan CR. Progesterone receptor promotes degradation of STAT2 to inhibit the interferon response in breast cancer. Oncoimmunology 2020; 9:1758547. [PMID: 32391191 PMCID: PMC7199813 DOI: 10.1080/2162402x.2020.1758547] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 03/30/2020] [Accepted: 04/03/2020] [Indexed: 02/07/2023] Open
Abstract
Type I (IFNα/β) interferon signaling represents a critical transduction pathway involved in recognition and destruction of nascent tumor cells. Downregulation of this pathway to promote a more immunosuppressed microenvironment contributes to the ability of tumor cells to evade the immune system, a known Hallmark of Cancer. The present study investigates the progesterone receptor (PR), which is expressed in the vast majority of breast cancers, and its ability to inhibit efficient interferon signaling in tumor cells. We have shown that PR can block the interferon signaling cascade by promoting ubiquitination and degradation of STAT2. Targeting STAT2 is critical, as we show that it is an essential protein in inducing transcription of interferon-stimulated genes (ISG); shRNA-mediated knockdown of STAT2 severely abrogates the interferon response in vitro. Importantly, we were able to reverse this inhibition by treating with onapristone, an anti-progestin currently being investigated in breast cancer clinical trials. Additionally, we have found that an interferon-related gene signature (composed of ISGs) is inversely correlated with PR expression in human tumors. We speculate that PR inhibition of interferon signaling may contribute to creating an immunosuppressed microenvironment and reversal of this through anti-progestins may present a novel therapeutic target to promote immune activity within the tumor.
Collapse
Affiliation(s)
- Katherine R Walter
- Department of Biochemistry and Molecular Biology, Department of Cancer Biology, University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, KS, USA
| | - Justin M Balko
- Departments of Medicine and Pathology, Microbiology, and Immunology, and Breast Cancer Research Program, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Christy R Hagan
- Department of Biochemistry and Molecular Biology, Department of Cancer Biology, University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, KS, USA
| |
Collapse
|
50
|
Cao H, Gao R, Chen L, Feng Y. TRIM66 promotes malignant progression of prostate carcinoma through the JAK/STAT pathway. FEBS Open Bio 2020; 10:515-524. [PMID: 31981447 PMCID: PMC7137797 DOI: 10.1002/2211-5463.12798] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 12/09/2019] [Accepted: 01/20/2020] [Indexed: 12/14/2022] Open
Abstract
Prostate cancer is the fifth leading cause of cancer‐related deaths in males globally. Tripartite Motif Containing 66 (TRIM66) functions as transcriptional repressor and exerts its effect at least partially through promotion of deacetylase. TRIM66 has been previously reported to play an oncogenic role in a number of human cancers. Here, we investigated the potential oncogenic properties of TRIM66 in prostate cancer. We report that shRNA‐mediated knockdown of TRIM66 significantly suppressed viability and proliferation of both PC‐3 and DU145 prostate cancer cell lines. Furthermore, TRIM66 deficiency inhibited migration and invasion of prostate cancer cells. Mechanistically, TRIM66 positively regulated signal transducer and activator of transcription 2 (STAT2) and interleukin‐2 (IL‐2) expression. The predominance of STAT2–IL‐2 in mediating the oncogenic properties of TRIM66 was determined using a rescue assay, wherein overexpression of either STAT2 or IL‐2 almost completely abolished the inhibitory effects on cell proliferation, migration and invasion elicited by TRIM66 deficiency in prostate cancer cells. Our study highlights the importance of the TRIM66–STAT2–IL‐2 signaling axis in the tumor biology of prostate cancer.
Collapse
Affiliation(s)
- Hongwen Cao
- Surgical Department I (Urology Department), LongHua Hospital Shanghai University of Traditional Chinese Medicine, China
| | - Renjie Gao
- Surgical Department I (Urology Department), LongHua Hospital Shanghai University of Traditional Chinese Medicine, China
| | - Lei Chen
- Surgical Department I (Urology Department), LongHua Hospital Shanghai University of Traditional Chinese Medicine, China
| | - Yigeng Feng
- Surgical Department I (Urology Department), LongHua Hospital Shanghai University of Traditional Chinese Medicine, China
| |
Collapse
|