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Song J, Sun X, Zhou Y, Li S, Wu J, Yang L, Zhou D, Yang Y, Liu A, Lu M, Michael R, Qin L, Yang D. Early application of IFNγ mediated the persistence of HBV in an HBV mouse model. Antiviral Res 2024; 225:105872. [PMID: 38556058 DOI: 10.1016/j.antiviral.2024.105872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/20/2024] [Accepted: 03/23/2024] [Indexed: 04/02/2024]
Abstract
The antiviral activity of interferon gamma (IFNγ) against hepatitis B virus (HBV) was demonstrated both in vivo and in vitro in a previous study. IFNγ can suppress HBV replication by accelerating the decay of replication-competent nucleocapsids of HBV. However, in this study, we found that the direct application of the mouse IFNγ (mIFNγ) expression plasmid to the liver of an HBV hydrodynamic injection (HI) mouse model led to the persistence of HBV, as indicated by sustained HBsAg and HBeAg levels in the serum as well as an increased percentage of the HBsAg positive mice, whereas the level of HBV DNA in the serum and the expression of HBcAg in the liver were inhibited at the early stage after HI. Meanwhile, we found that the productions of both HBcAb and HBsAb were suppressed after the application of mIFNγ. In addition, we found that HBV could be effectively inhibited in mice immunized with HBsAg expression plasmid before the application of mIFNγ. Furthermore, mIFNγ showed antiviral effect and promoted the production of HBsAb when the mice subjected to the core-null HBV plasmid. These results indicate that the application of mIFNγ in the HBV HI mouse model, the mice showed defective HBcAg-specific immunity that impeded the production of HBcAb and HBsAb, finally allowing the persistence of the virus. Moreover, IFNγ-induced negative immune regulatory factors also play an important role in virus persistence.
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Affiliation(s)
- Jingjiao Song
- Experimental Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
| | - Xiliang Sun
- Clinical Laboratory, Qingdao West Coast New District People's Hospital, Shandong, PR China.
| | - Yun Zhou
- Department of Infectious Diseases, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China; Key Laboratory of Receptors-mediated Gene Regulation and Drug Discovery, School of Medicine, Henan University, Kaifeng, PR China.
| | - Sheng Li
- Department of Infectious Diseases, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
| | - Jun Wu
- Department of Infectious Diseases, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
| | - Lu Yang
- Experimental Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
| | - Di Zhou
- Experimental Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
| | - Yan Yang
- Experimental Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
| | - Anding Liu
- Experimental Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
| | - Mengji Lu
- Institute of Virology, University Hospital of Essen, University of Duisburg-Essen, Essen, Germany.
| | | | - Li Qin
- Department of Dermatology, Traditional Chinese and Western Medicine Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, PR China.
| | - Dongliang Yang
- Experimental Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China; Department of Infectious Diseases, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
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Challagundla N, Shah D, Dalai SK, Agrawal-Rajput R. IFNγ insufficiency during mouse intra-vaginal Chlamydia trachomatis infection exacerbates alternative activation in macrophages with compromised CD40 functions. Int Immunopharmacol 2024; 131:111821. [PMID: 38484664 DOI: 10.1016/j.intimp.2024.111821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 03/03/2024] [Accepted: 03/05/2024] [Indexed: 04/10/2024]
Abstract
Chlamydia trachomatis (C.tr), an obligate intracellular pathogen, causes asymptomatic genital infections in women and is a leading cause of preventable blindness. We have developed in vivo mouse models of acute and chronic C. trachomatis genital infection to explore the significance of macrophage-directed response in mediating immune activation/suppression. Our findings reveal that during chronic and repeated C. trachomatis infections, Th1 response is abated while Treg response is enhanced. Additionally, an increase in exhaustion (PD1, CTLA4) and anergic (Klrg3, Tim3) T cell markers is observed during chronic infection. We have also observed that M2 macrophages with low CD40 expression promote Th2 and Treg differentiation leading to sustained C. trachomatis genital infection. Macrophages infected with C. trachomatis or treated with supernatant of infected epithelial cells drive them to an M2 phenotype. C. trachomatis infection prevents the increase in CD40 expression as observed in western blots and flow cytometric analysis. Insufficient IFNγ, as observed during chronic infection, leads to incomplete clearance of bacteria and poor immune activation. C. trachomatis decapacitates IFNγ responsiveness in macrophages via hampering IFNγRI and IFNγRII expression which can be correlated with poor expression of MHC-II, CD40, iNOS and NO release even following IFNγ supplementation. M2 macrophages during C. trachomatis infection express low CD40 rendering immunosuppressive, Th2 and Treg differentiation which could not be reverted even by IFNγ supplementation. The alternative macrophages also harbour high bacterial load and are poor responders to IFNγ, thus promoting immunosuppression. In summary, C. trachomatis modulates the innate immune cells, attenuating the anti-chlamydial functions of T cells in a manner that involves decreased CD40 expression on macrophages.
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Affiliation(s)
- Naveen Challagundla
- Immunology Lab, Biological Sciences and Biotechnology, Indian Institute of Advanced Research, Gandhinagar, Gujarat, India.
| | - Dhruvi Shah
- Immunology Lab, Biological Sciences and Biotechnology, Indian Institute of Advanced Research, Gandhinagar, Gujarat, India.
| | - Sarat K Dalai
- Institute of Science, Nirma University, S.G. Highway, Ahmedabad, Gujarat, India.
| | - Reena Agrawal-Rajput
- Immunology Lab, Biological Sciences and Biotechnology, Indian Institute of Advanced Research, Gandhinagar, Gujarat, India.
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Viano ME, Baez NS, Savid-Frontera C, Baigorri RE, Dinatale B, Pacini MF, Bulfoni Balbi C, Gonzalez FB, Fozzatti L, Lidón NL, Young HA, Hodge DL, Cerban F, Stempin CC, Pérez AR, Rodriguez-Galán MC. Systemic inflammatory Th1 cytokines during Trypanosoma cruzi infection disrupt the typical anatomical cell distribution and phenotypic/functional characteristics of various cell subsets within the thymus. Microbes Infect 2024:105337. [PMID: 38615883 DOI: 10.1016/j.micinf.2024.105337] [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: 02/13/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/16/2024]
Abstract
The thymus plays a crucial role in T cell differentiation, a complex process influenced by various factors such as antigens, the microenvironment and thymic architecture. The way the thymus resolves infections is critical, as chronic persistence of microbes or inflammatory mediators can obstruct the differentiation. Here, we illustrate that following inflammatory T helper 1 infectious processes like those caused by Candida albicans or Trypanosoma cruzi, single positive thymocytes adopt a mature phenotype. Further investigations focused on T. cruzi infection, reveal a substantial existence of CD44+ cells in both the cortical and medullary areas of the thymus at the onset of infection. This disturbance coincides with heightened interferon gamma (IFNγ) production by thymocytes and an increased cytotoxic capacity against T. cruzi-infected macrophages. Additionally, we observe a reduced exportation capacity in T. cruzi-infected mice. Some alterations can be reversed in IFNγ knockout mice (KO). Notably, the majority of these effects can be replicated by systemic expression of interleukin (IL)-12+IL-18, underlining the predominantly inflammatory rather than pathogen-specific nature of these phenomena. Understanding the mechanisms through which systemic inflammation disrupts normal T cell development, as well as subsequent T cell exportation to secondary lymphoid organs (SLO) is pivotal for comprehending susceptibility to diseases in different pathological scenarios.
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Affiliation(s)
- Maria Estefania Viano
- Inmunología, CIBICI-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Natalia Soledad Baez
- Inmunología, CIBICI-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Constanza Savid-Frontera
- Inmunología, CIBICI-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Ruth Eliana Baigorri
- Inmunología, CIBICI-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Brenda Dinatale
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER CONICET-UNR), Argentina
| | - Maria Florencia Pacini
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER CONICET-UNR), Argentina
| | - Camila Bulfoni Balbi
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER CONICET-UNR), Argentina
| | | | - Laura Fozzatti
- Inmunología, CIBICI-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Nicolas Leonel Lidón
- Inmunología, CIBICI-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Howard A Young
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick MD 21702-1201, USA
| | - Deborah L Hodge
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick MD 21702-1201, USA
| | - Fabio Cerban
- Inmunología, CIBICI-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Cinthia Carolina Stempin
- Inmunología, CIBICI-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Ana Rosa Pérez
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER CONICET-UNR), Argentina; Centro de Investigación y Producción de Reactivos Biológicos (CIPREB), Facultad de Cs. Médicas de la Universidad Nacional de Rosario (UNR), Argentina
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Papavassiliou KA, Adamopoulos C, Papavassiliou AG. SOX17: escape route from immune destruction in early CRC. Trends Mol Med 2024:S1471-4914(24)00089-3. [PMID: 38594095 DOI: 10.1016/j.molmed.2024.04.001] [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: 03/20/2024] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/11/2024]
Abstract
In a recent report in Nature, Goto et al. reveal a novel immune-evasion mechanism adopted by early colorectal cancer (CRC) cells that is based on the transcription factor sex determining region Y (SRY)-box transcription factor 17 (SOX17). Leveraging colorectal adenoma and cancer models to perform comprehensive transcriptomic/chromatin analyses, this work shows that SOX17 generates immune-silent leucine-rich repeat-containing G protein-coupled receptor 5- (LGR5-) tumor cells, which suppress interferon gamma (IFNγ) signaling and promote immune escape.
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Affiliation(s)
- Kostas A Papavassiliou
- First University Department of Respiratory Medicine, 'Sotiria' Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Christos Adamopoulos
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Athanasios G Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
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Huang YJ, Ho KW, Cheng TL, Wang YT, Chao SW, Huang BC, Chao YS, Lin CY, Hsu YH, Chen FM, Chuang CH. Selective activation of IFNγ-ipilimumab enhances the therapeutic effect and safety of ipilimumab. Int J Biol Macromol 2024; 265:130945. [PMID: 38493818 DOI: 10.1016/j.ijbiomac.2024.130945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 03/14/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
INTRODUCTION Immune checkpoint inhibitor therapy is a highly promising strategy for clinical treatment of cancer. Among these inhibitors, ipilimumab stands out for its ability to induce cytotoxic T cell proliferation and activation by binding to CTLA-4. However, ipilimumab also gives rise to systemic immune-related adverse effects and tumor immune evasion, limiting its effectiveness. OBJECTIVES We developed IFNγ-ipilimumab and confirmed that the addition of INF-γ does not alter the fundamental properties of ipilimumab. RESULTS IFNγ-ipilimumab can be activated by matrix metalloproteinases, thereby promoting the IFNγ signaling pathway and enhancing the cytotoxicity of T cells. In vivo studies demonstrated that IFNγ-ipilimumab enhances the therapeutic effect of ipilimumab against colorectal cancer by increasing CD8+ and CD4+ lymphocyte infiltration into the tumor area and inducing MHC-I expression in tumor cells. Mice treated with IFNγ-ipilimumab showed higher survival rates and body weight, as well as lower CD4+ and CD8+ lymphocyte activation rates in the blood and reduced organ damage. CONCLUSION IFNγ-ipilimumab improved the effectiveness of ipilimumab while reducing its side effects. It is likely that future immunotherapies would rely on such antibodies to activate local cancer cells or immune cells, thereby increasing the therapeutic effectiveness of cancer treatments and ensuring their safety.
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Affiliation(s)
- Yi-Jung Huang
- Department of Biochemistry, School of Post Baccalaureate Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kai-Wen Ho
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tian-Lu Cheng
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Yen-Tseng Wang
- Department of Biochemistry, School of Post Baccalaureate Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shi-Wei Chao
- Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Bo-Cheng Huang
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Surgery, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Shu Chao
- Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Yu Lin
- Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yun-Han Hsu
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Fang-Ming Chen
- Department of Surgery, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Surgery, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan; Division of Breast Oncology & Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
| | - Chih-Hung Chuang
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Miyaoka C, Watanabe M, Nakamoto K, Yoshida Y, Hirata A, Aso J, Nunokawa H, Ishida M, Honda K, Takata S, Saraya T, Ishii H. Association of IL-33 in modeling type-2 airway inflammation and pulmonary emphysema in mice. Immun Inflamm Dis 2024; 12:e1252. [PMID: 38652015 PMCID: PMC11037248 DOI: 10.1002/iid3.1252] [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: 11/03/2023] [Revised: 02/29/2024] [Accepted: 03/20/2024] [Indexed: 04/25/2024] Open
Abstract
We developed pulmonary emphysema and a type 2 airway inflammation overlap mouse model. The bronchoalveolar lavage (BAL) interleukin 13 (IL-13), IL-4, and IL-5 levels in the overlap model were higher than in the pulmonary emphysema model and lower than in the type 2 airway inflammation model, but IL-33 level in the lung was higher than in other models. IL-33 and interferon-γ (IFNγ) in lungs may control the severity of a type 2 airway inflammation in lung.
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Affiliation(s)
- Chika Miyaoka
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
| | - Masato Watanabe
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
| | - Keitaro Nakamoto
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
| | - Yuki Yoshida
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
| | - Aya Hirata
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
| | - Jumpei Aso
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
| | - Hiroki Nunokawa
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
| | - Manabu Ishida
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
| | - Koujiro Honda
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
| | - Saori Takata
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
| | - Takeshi Saraya
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
| | - Haruyuki Ishii
- Department of Respiratory MedicineKyorin University Faculty of MedicineMitaka CityTokyoJapan
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Ahmadnia A, Mohammadi S, Yamchi A, Kalani MR, Farazmandfar T, Khosravi A, Memarian A. Augmenting the Antitumor Efficacy of Natural Killer Cells via SynNotch Receptor Engineering for Targeted IL-12 Secretion. Curr Issues Mol Biol 2024; 46:2931-2945. [PMID: 38666913 DOI: 10.3390/cimb46040183] [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: 01/23/2024] [Revised: 03/13/2024] [Accepted: 03/18/2024] [Indexed: 04/28/2024] Open
Abstract
Natural killer (NK) cells are crucial components of innate immunity, known for their potent tumor surveillance abilities. Chimeric antigen receptors (CARs) have shown promise in cancer targeting, but optimizing CAR designs for NK cell functionality remains challenging. CAR-NK cells have gained attention for their potential to reduce side effects and enable scalable production in cancer immunotherapy. This study aimed to enhance NK cell anti-tumor activity by incorporating PD1-synthetic Notch (synNotch) receptors. A chimeric receptor was designed using UniProt database sequences, and 3D structure models were generated for optimization. Lentiviral transduction was used to introduce PD1-Syn receptors into NK cells. The expression of PD1-Syn receptors on NK cell surfaces was assessed. Engineered NK cells were co-cultured with PDL1+ breast cancer cells to evaluate their cytotoxic activity and ability to produce interleukin-12 (IL-12) and interferon-gamma (IFNγ) upon interaction with the target cells. This study successfully expressed the PD1-Syn receptors on NK cells. CAR-NK cells secreted IL-12 and exhibited target-dependent IFNγ production when engaging PDL1+ cells. Their cytotoxic activity was significantly enhanced in a target-dependent manner. This study demonstrates the potential of synNotch receptor-engineered NK cells in enhancing anti-tumor responses, especially in breast cancer cases with high PDL1 expression.
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Affiliation(s)
- Ali Ahmadnia
- Department of Molecular Medicine, Faculty of Advanced Medical Technologies, Golestan University of Medical Sciences, Gorgan P.O. Box 665, Iran
| | - Saeed Mohammadi
- Golestan Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan P.O. Box 665, Iran
| | - Ahad Yamchi
- Department of Biotechnology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan P.O. Box 386, Iran
| | - Mohamad Reza Kalani
- Department of Molecular Medicine, Faculty of Advanced Medical Technologies, Golestan University of Medical Sciences, Gorgan P.O. Box 665, Iran
| | - Touraj Farazmandfar
- Department of Molecular Medicine, Faculty of Advanced Medical Technologies, Golestan University of Medical Sciences, Gorgan P.O. Box 665, Iran
- Medical Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan P.O. Box 665, Iran
| | - Ayyoub Khosravi
- Department of Molecular Medicine, Faculty of Advanced Medical Technologies, Golestan University of Medical Sciences, Gorgan P.O. Box 665, Iran
- Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan P.O. Box 665, Iran
| | - Ali Memarian
- Medical Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan P.O. Box 665, Iran
- Department of Medical Immunology, School of Medicine, Golestan University of Medical Sciences, Gorgan P.O. Box 665, Iran
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Recchia Luciani G, Barilli A, Visigalli R, Sala R, Dall’Asta V, Rotoli BM. IRF1 Mediates Growth Arrest and the Induction of a Secretory Phenotype in Alveolar Epithelial Cells in Response to Inflammatory Cytokines IFNγ/TNFα. Int J Mol Sci 2024; 25:3463. [PMID: 38542436 PMCID: PMC10970306 DOI: 10.3390/ijms25063463] [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: 02/23/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 04/04/2024] Open
Abstract
In COVID-19, cytokine release syndrome can cause severe lung tissue damage leading to acute respiratory distress syndrome (ARDS). Here, we address the effects of IFNγ, TNFα, IL-1β and IL-6 on the growth arrest of alveolar A549 cells, focusing on the role of the IFN regulatory factor 1 (IRF1) transcription factor. The efficacy of JAK1/2 inhibitor baricitinib has also been tested. A549 WT and IRF1 KO cells were exposed to cytokines for up to 72 h. Cell proliferation and death were evaluated with the resazurin assay, analysis of cell cycle and cycle-regulator proteins, LDH release and Annexin-V positivity; the induction of senescence and senescence-associated secretory phenotype (SASP) was evaluated through β-galactosidase staining and the quantitation of secreted inflammatory mediators. While IL-1 and IL-6 proved ineffective, IFNγ plus TNFα caused a proliferative arrest in A549 WT cells with alterations in cell morphology, along with the acquisition of a secretory phenotype. These effects were STAT and IRF1-dependent since they were prevented by baricitinib and much less evident in IRF1 KO than in WT cells. In alveolar cells, STATs/IRF1 axis is required for cytokine-induced proliferative arrest and the induction of a secretory phenotype. Hence, baricitininb is a promising therapeutic strategy for the attenuation of senescence-associated inflammation.
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Affiliation(s)
| | | | | | | | - Valeria Dall’Asta
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy (R.S.); (B.M.R.)
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Ustiuzhanina MO, Streltsova MA, Timofeev ND, Kryukov MA, Chudakov DM, Kovalenko EI. Autologous T-Cell-Free Antigen Presentation System Unveils hCMV-Specific NK Cell Response. Cells 2024; 13:530. [PMID: 38534374 DOI: 10.3390/cells13060530] [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: 02/15/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/28/2024] Open
Abstract
NK cells play a decisive role in controlling hCMV infection by combining innate and adaptive-like immune reactions. The hCMV-derived VMAPRTLFL (LFL) peptide is a potent activator of NKG2C+ NK cells. Proposed here is an autologous system of LFL stimulation without T lymphocytes and exogenous cytokines that allows us to evaluate NK-cell hCMV-specific responses in more native settings. In this model, we evaluated LFL-induced IFNγ production, focusing on signaling pathways and the degranulation and proliferation of NK cells orchestrated by microenvironment cytokine production and analyzed the transcriptome of expanded NK cells. NK cells of individuals having high anti-hCMV-IgG levels, in contrast to NK cells of hCMV-seronegative and low-positive donors, displayed increased IFNγ production and degranulation and activation levels and enhanced proliferation upon LFL stimulation. Cytokine profiles of these LFL-stimulated cultures demonstrated a proinflammatory shift. LFL-induced NK-cell IFNγ production was dependent on the PI3K and Ras/Raf/Mek signaling pathways, independently of cytokines. In hCMV-seropositive individuals, this model allowed obtaining NK-cell antigen-specific populations proliferating in response to LFL. The transcriptomic profile of these expanded NK cells showed increased adaptive gene expression and metabolic activation. The results complement the existing knowledge about hCMV-specific NK-cell response. This model may be further exploited for the identification and characterization of antigen-specific NK cells.
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Affiliation(s)
- Maria O Ustiuzhanina
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Maria A Streltsova
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Nikita D Timofeev
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Maxim A Kryukov
- Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland
| | - Dmitriy M Chudakov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Institute of Translational Medicine, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
- Central European Institute of Technology, Masaryk University, 60200 Brno, Czech Republic
- Abu Dhabi Stem Cells Center, Abu Dhabi, United Arab Emirates
| | - Elena I Kovalenko
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
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10
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Wang Y, Hollingsworth LR, Sangaré LO, Paredes-Santos TC, Krishnamurthy S, Penn BH, Wu H, Saeij JPJ. Host E3 ubiquitin ligase ITCH mediates Toxoplasma gondii effector GRA35-triggered NLRP1 inflammasome activation and cell-autonomous immunity. mBio 2024; 15:e0330223. [PMID: 38376248 PMCID: PMC10936166 DOI: 10.1128/mbio.03302-23] [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: 12/11/2023] [Accepted: 01/31/2024] [Indexed: 02/21/2024] Open
Abstract
Toxoplasma gondii is an intracellular parasite that can activate the NLRP1 inflammasome leading to macrophage pyroptosis in Lewis rats, but the underlying mechanism is not well understood. In this study, we performed a genome-wide CRISPR screen and identified the dense granule proteins GRA35, GRA42, and GRA43 as the Toxoplasma effectors mediating cell death in Lewis rat macrophages. GRA35 localizes on the parasitophorous vacuole membrane, where it interacts with the host E3 ubiquitin ligase ITCH. Inhibition of proteasome activity or ITCH knockout prevented pyroptosis in Toxoplasma-infected Lewis rat macrophages, consistent with the "NLRP1 functional degradation model." However, there was no evidence that ITCH directly ubiquitinates or interacts with rat NLRP1. We also found that GRA35-ITCH interaction affected Toxoplasma fitness in IFNγ-activated human fibroblasts, likely due to ITCH's role in recruiting ubiquitin and the parasite-restriction factor RNF213 to the parasitophorous vacuole membrane. These findings identify a new role of host E3 ubiquitin ligase ITCH in mediating effector-triggered immunity, a critical concept that involves recognizing intracellular pathogens and initiating host innate immune responses.IMPORTANCEEffector-triggered immunity represents an innate immune defense mechanism that plays a crucial role in sensing and controlling intracellular pathogen infection. The NLRP1 inflammasome in the Lewis rats can detect Toxoplasma infection, which triggers proptosis in infected macrophages and eliminates the parasite's replication niche. The work reported here revealed that host E3 ubiquitin ligase ITCH is able to recognize and interact with Toxoplasma effector protein GRA35 localized on the parasite-host interface, leading to NLRP1 inflammasome activation in Lewis rat macrophages. Furthermore, ITCH-GRA35 interaction contributes to the restriction of Toxoplasma in human fibroblasts stimulated by IFNγ. Thus, this research provides valuable insights into understanding pathogen recognition and restriction mediated by host E3 ubiquitin ligase.
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Affiliation(s)
- Yifan Wang
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California, Davis, California, USA
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - L. Robert Hollingsworth
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, Massachusetts, USA
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, Massachusetts, USA
| | - Lamba Omar Sangaré
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California, Davis, California, USA
- Department of Biology, Texas A&M University, College Station, Texas, USA
| | - Tatiana C. Paredes-Santos
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Shruthi Krishnamurthy
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Bennett H. Penn
- Department of Internal Medicine, Division of Infectious Diseases, UC Davis Health, Sacramento, California, USA
- Department of Medical Microbiology and Immunology, University of California, Davis, California, USA
| | - Hao Wu
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, Massachusetts, USA
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, Massachusetts, USA
| | - Jeroen P. J. Saeij
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California, Davis, California, USA
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11
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Lee MSJ, Matsuo Dapaah J, Del Rosario Zorrilla C, Omatsu Y, Nagasawa T, Uemura S, Iwama A, Ishii KJ, Coban C. Acute malaria suppresses the B lymphocytic niche in the bone marrow through the alteration of CXCL12-abundant reticular cells. Int Immunol 2024:dxae012. [PMID: 38430523 DOI: 10.1093/intimm/dxae012] [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: 12/28/2023] [Indexed: 03/04/2024] Open
Abstract
Bone marrow is a dynamic organ composed of stem cells that constantly receive signals from stromal cells and other hematopoietic cells in the niches of the bone marrow to maintain hematopoiesis and generate immune cells. Perturbation of the bone marrow microenvironment by infection and inflammation affects hematopoiesis and may affect immune cell development. Little is known about the effect of malaria on the bone marrow stromal cells that govern the hematopoietic stem cell (HSC) niche. In this study, we demonstrate that the mesenchymal stromal CXCL12-abundant reticular (CAR) cell population is reduced during acute malaria infection. The reduction of CXCL12 and IL-7 signals in the bone marrow impairs the lymphopoietic niche, leading to the depletion of common lymphoid progenitors, B cell progenitors and mature B cells, including plasma cells in the bone marrow. We found that IFNγ is responsible for the upregulation of Sca1 on CAR cells, yet the decline in CAR cell and B cell populations in the bone marrow is IFNγ-independent. In contrast to the decline in B cell populations, HSCs and multipotent progenitors increased with expansion of myelopoiesis and erythropoiesis, indicating a bias in the differentiation of multipotent progenitors during malaria infection. These findings suggest that malaria may affect host immunity by modulating the bone marrow niche.
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Affiliation(s)
- Michelle Sue Jann Lee
- Division of Malaria Immunology, Department of Microbiology and Immunology, The Institute of Medical Science (IMSUT), The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
- International Vaccine Design Center, The Institute of Medical Science (IMSUT), The University of Tokyo, Tokyo 108-8639, Japan
| | - Julia Matsuo Dapaah
- Division of Malaria Immunology, Department of Microbiology and Immunology, The Institute of Medical Science (IMSUT), The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Camila Del Rosario Zorrilla
- Division of Malaria Immunology, Department of Microbiology and Immunology, The Institute of Medical Science (IMSUT), The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Yoshiki Omatsu
- Laboratory of Stem Cell Biology and Developmental Immunology, Graduate School of Frontier Biosciences and Graduate School of Medicine, Osaka University, 565-0871 Osaka, Japan
- Laboratory of Stem Cell Biology and Developmental Immunology, WPI Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan
| | - Takashi Nagasawa
- Laboratory of Stem Cell Biology and Developmental Immunology, Graduate School of Frontier Biosciences and Graduate School of Medicine, Osaka University, 565-0871 Osaka, Japan
- Laboratory of Stem Cell Biology and Developmental Immunology, WPI Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan
| | - Shun Uemura
- Division of Stem Cell and Molecular Medicine, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science (IMSUT), The University of Tokyo, Tokyo 108-8639, Japan
| | - Atsushi Iwama
- Division of Stem Cell and Molecular Medicine, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science (IMSUT), The University of Tokyo, Tokyo 108-8639, Japan
- Laboratory of Cellular and Molecular Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
- The University of Tokyo Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), The University of Tokyo, Tokyo 108-8639, Japan
| | - Ken J Ishii
- International Vaccine Design Center, The Institute of Medical Science (IMSUT), The University of Tokyo, Tokyo 108-8639, Japan
- Division of Vaccine Science, Department of Microbiology and Immunology, The Institute of Medical Science (IMSUT), The University of Tokyo, Tokyo 108-8639, Japan
- WPI Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan
- The University of Tokyo Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), The University of Tokyo, Tokyo 108-8639, Japan
| | - Cevayir Coban
- Division of Malaria Immunology, Department of Microbiology and Immunology, The Institute of Medical Science (IMSUT), The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
- International Vaccine Design Center, The Institute of Medical Science (IMSUT), The University of Tokyo, Tokyo 108-8639, Japan
- WPI Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan
- The University of Tokyo Pandemic Preparedness, Infection and Advanced Research Center (UTOPIA), The University of Tokyo, Tokyo 108-8639, Japan
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12
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Chen X, Li M, Li H, Liu M, Su J, Ji Y. Implications of IFNγ SNP rs2069705 in Primary Sjögren's Syndrome: Transcriptional Activation and B Cell Infiltration. Am J Physiol Cell Physiol 2024. [PMID: 38406824 DOI: 10.1152/ajpcell.00661.2023] [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: 12/04/2023] [Accepted: 02/12/2024] [Indexed: 02/27/2024]
Abstract
OBJECTIVE Primary Sjögren's Syndrome (pSS) is characterized by its autoimmune nature. This study investigates the role of the IFNγ SNP rs2069705 in modulating the susceptibility to pSS. METHODS Differential expression of IFNγ and BAFF was analyzed using the GEO database's mRNA microarray GSE84844. Genotyping of the IFNγ SNP rs2069705 was conducted via the dbSNP website. The JASPAR tool was used for predicting transcription factor bindings. Techniques such as dual-luciferase reporter assays, Chromatin Immunoprecipitation, and analysis of a pSS mouse model were applied to study gene and protein interactions. RESULTS A notable increase in the mutation frequency of IFNγ SNP rs2069705 was observed in MNCs from the exocrine glands of pSS mouse models. Bioinformatics analysis revealed elevated levels of IFNγ and BAFF in pSS samples. The model exhibited an increase in both CD20+ B cells and cells expressing IFNγ and BAFF. Knocking down IFNγ resulted in lowered BAFF expression and less lymphocyte infiltration, with BAFF overexpression reversing this suppression. Activation of the JAK/STAT1 pathway was found to enhance transcription in the BAFF promoter region, highlighting IFNγ's involvement in pSS. Additionally, rs2069705 was shown to boost IFNγ transcription by promoting interaction between its promoter and STAT4. CONCLUSION SNP rs2069705 in the IFNγ gene emerges as a pivotal element in pSS susceptibility, primarily by augmenting IFNγ transcription, activating the JAK/STAT1 pathway, and leading to B lymphocyte infiltration in the exocrine glands.
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Affiliation(s)
- Xi Chen
- Mianyang Central Hospital, Mianyang, Sichuan Province, China
| | - Min Li
- Mianyang Central Hospital, China
| | | | - Miao Liu
- Mianyang Central Hospital, China
| | | | - Yuzhu Ji
- Mianyang Central Hospital, China
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13
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Krivoshik SR, Dzielak L, Masters AR, Hall J, Johnson AJ. Development of an Enzyme-Linked Immunosorbent Spot Assay for the Assessment of Adeno-Associated Virus Peptides to Examine Immune Safety. Hum Gene Ther 2024. [PMID: 38264994 DOI: 10.1089/hum.2023.180] [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] [Indexed: 01/25/2024] Open
Abstract
Adeno-associated virus (AAV)-based gene therapies have shown promise as novel treatments for rare genetic disorders such as hemophilia A and spinal muscular atrophy. However, cellular immune responses mediated by cytotoxic (CD8+) and helper (CD4+) T cells may target vector-transduced cells as well as healthy immune cells, impacting safety and efficacy. In this study, we describe the optimization and reproducibility of interferon-γ (IFNγ)-based and interleukin-2 (IL-2)-based enzyme-linked immunosorbent spot (ELISpot) assays for measuring T cell responses against AAV peptide antigens. For method optimization, peripheral blood mononuclear cells (PBMCs) were isolated from healthy human donors and stimulated with commercially available major histocompatibility complex (MHC) class I or II-specific peptides as positive controls. Peptide pools were designed from published AAV8 and AAV9 capsid protein sequences and then used to assess the presence of AAV-specific T cell responses. Our results demonstrate a measurable increase in IFNγ and IL-2-producing cells after AAV peptide presentation. Furthermore, there was an observed difference in the magnitude and specificity of response to peptide pools based on AAV serotype and donor. Finally, using individual peptides, we identified a region of the AAV9 capsid protein that can elicit an immunogenic response. This work shows the applicability of ELISpot in assessing anti-AAV immune responses and provides insight into how novel recombinant AAV vectors could be designed to reduce immunogenic potential.
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Affiliation(s)
- Sara Rose Krivoshik
- Non-Clinical Drug Safety, Boehringer Ingelheim Pharmaceuticals, Ridgefield, Connecticut, USA
| | - Lindsey Dzielak
- Non-Clinical Drug Safety, Boehringer Ingelheim Pharmaceuticals, Ridgefield, Connecticut, USA
| | - April R Masters
- Non-Clinical Drug Safety, Boehringer Ingelheim Pharmaceuticals, Ridgefield, Connecticut, USA
| | - Jennifer Hall
- Non-Clinical Drug Safety, Boehringer Ingelheim Pharmaceuticals, Ridgefield, Connecticut, USA
| | - Alison J Johnson
- Drug Metabolism and Pharmacokinetics, Boehringer Ingelheim Pharmaceuticals, Ridgefield, Connecticut, USA
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14
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Gour N, Yong HM, Magesh A, Atakkatan A, Andrade F, Lajoie S, Dong X. A GPCR-neuropeptide axis dampens hyperactive neutrophils by promoting an alternative-like polarization during bacterial infection. Immunity 2024; 57:333-348.e6. [PMID: 38295799 PMCID: PMC10940224 DOI: 10.1016/j.immuni.2024.01.003] [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: 06/11/2023] [Revised: 10/10/2023] [Accepted: 01/08/2024] [Indexed: 02/16/2024]
Abstract
The notion that neutrophils exist as a homogeneous population is being replaced with the knowledge that neutrophils adopt different functional states. Neutrophils can have a pro-inflammatory phenotype or an anti-inflammatory state, but how these states are regulated remains unclear. Here, we demonstrated that the neutrophil-expressed G-protein-coupled receptor (GPCR) Mrgpra1 is a negative regulator of neutrophil bactericidal functions. Mrgpra1-mediated signaling was driven by its ligand, neuropeptide FF (NPFF), which dictated the balance between pro- and anti-inflammatory programming. Specifically, the Mrgpra1-NPFF axis counter-regulated interferon (IFN) γ-mediated neutrophil polarization during acute lung infection by favoring an alternative-like polarization, suggesting that it may act to balance overzealous neutrophilic responses. Distinct, cross-regulated populations of neutrophils were the primary source of NPFF and IFNγ during infection. As a subset of neutrophils at steady state expressed NPFF, these findings could have broad implications in various infectious and inflammatory diseases. Therefore, a neutrophil-intrinsic pathway determines their cellular fate, function, and magnitude of infection.
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Affiliation(s)
- Naina Gour
- Solomon H. Snyder Department of Neuroscience, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Hwan Mee Yong
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Aishwarya Magesh
- Krieger School of Arts and Sciences, Johns Hopkins University, Baltimore, MD, USA; Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Aishwarya Atakkatan
- Solomon H. Snyder Department of Neuroscience, School of Medicine, Johns Hopkins University, Baltimore, MD, USA; Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Felipe Andrade
- Division of Rheumatology, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Stephane Lajoie
- Department of Otolaryngology, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Xinzhong Dong
- Solomon H. Snyder Department of Neuroscience, School of Medicine, Johns Hopkins University, Baltimore, MD, USA; Howard Hughes Medical Institute, Chevy Chase, MD, USA.
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15
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Romero-Ramírez L, García-Rama C, Mey J. Janus Kinase Inhibitor Brepocitinib Rescues Myelin Phagocytosis Under Inflammatory Conditions: In Vitro Evidence from Microglia and Macrophage Cell Lines. Mol Neurobiol 2024:10.1007/s12035-024-03963-6. [PMID: 38308667 DOI: 10.1007/s12035-024-03963-6] [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: 08/12/2023] [Accepted: 01/16/2024] [Indexed: 02/05/2024]
Abstract
Central nervous system (CNS) injuries induce cell death and consequently the release of myelin and other cellular debris. Microglia as well as hematogenous macrophages actively collaborate to phagocyte them and undergo their degradation. However, myelin accumulation persists in the lesion site long after the injury with detrimental effects on axonal regeneration. This might be due to the presence of inhibitors of phagocytosis in the injury site. As we recently published that some proinflammatory stimuli, like interferon-γ (IFNγ) and lipopolysaccharide (LPS), inhibit myelin phagocytosis in macrophages, we have now studied the signaling pathways involved. A phagocytosis assay in Raw264.7 macrophages and N13 microglia cell lines with labeled myelin was developed with the pHrodo reagent that emits fluorescence in acidic cellular compartments (e.g.lysosomes). Pharmacological inhibition of Janus kinases (Jak) with Brepocitinib restored myelin phagocytosis and rescued the expression of genes related to phagocytosis, like triggering receptor expressed on myeloid cells 2 (TREM2), induced by IFNγ or LPS. In addition, while pharmacological inhibition of the signal transducer and activator of transcription 3 (STAT3) rescued myelin phagocytosis and the expression of phagocytosis related genes in the presence of LPS, it did not have any effect on IFNγ-treated cells. Our results show that Jak pathways participate in the inhibition of myelin phagocytosis by IFNγ and LPS. They also indicate that the resolution of inflammation is important for the clearance of cellular debris by macrophages and subsequent regenerative processes.
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Affiliation(s)
- Lorenzo Romero-Ramírez
- Laboratorio de Regeneración Neuronal, Hospital Nacional de Parapléjicos, SESCAM, Finca La Peraleda S/N, 45071, Toledo, Spain.
| | - Concepción García-Rama
- Laboratorio de Regeneración Neuronal, Hospital Nacional de Parapléjicos, SESCAM, Finca La Peraleda S/N, 45071, Toledo, Spain
| | - Jörg Mey
- Laboratorio de Regeneración Neuronal, Hospital Nacional de Parapléjicos, SESCAM, Finca La Peraleda S/N, 45071, Toledo, Spain
- School of Mental Health and Neuroscience, Maastricht University, Maastricht, Netherlands
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16
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Savino F, Dini M, Clemente A, Calvi C, Pau A, Galliano I, Gambarino S, Bergallo M. Nasopharyngeal and Peripheral Blood Type II Interferon Signature Evaluation in Infants during Respiratory Syncytial Virus Infection. Medicina (Kaunas) 2024; 60:259. [PMID: 38399546 PMCID: PMC10890591 DOI: 10.3390/medicina60020259] [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: 12/28/2023] [Revised: 01/22/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024]
Abstract
Background and Objectives: In this study, we applied one-step real time rt-PCR technology type II INF signature to blood and nasopharyngeal (NPS) swabs of acute early recovery children < 1 years hospitalized for bronchiolitis with laboratory-confirmed RSV infection. Materials and Methods: A prospective observational case-control study was conducted in 2021-2022. The study took place in Children Hospital "Regina Margherita", Torino Italy. The study included 66 infants, of which 30 patients were hospitalized for bronchiolitis due to RSV infection and 36 age-matched controls. Inclusion criteria included a positive RSV test for infants with bronchiolitis. We collected peripheral blood and nasopharyngeal swabs for relative quantification of type II Interferon signature by One-Step Multiplex PCR real time. Results: IFN levels were downregulated in the peripheral blood of bronchiolitis patients; these data were not confirmed in the nasopharyngeal swab. There was no correlation between NPS and the type II IFN score in peripheral blood. Conclusions: our study shows for the first time that type II IFN score was significant reduced in peripheral blood of infants with bronchiolitis by RSV compared to age-matched healthy controls; in the NPS swab this resulted downregulation was not statistically significant and the type II IFN score in the NPS swab can be used as marker of resolution of infection or improvement of clinical conditions.
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Affiliation(s)
- Francesco Savino
- Early Infancy Special Care Unit, Regina Margherita Children Hospital, A.O.U. Città della Salute e della Scienza di Torino, 10126 Torino, Italy;
| | - Maddalena Dini
- Paediatric Laboratory, Department of Public Health and Pediatric Sciences, Medical School, University of Turin, 10136 Turin, Italy; (M.D.); (A.C.); (C.C.); (A.P.); (I.G.)
- BioMole srl, Via Quarello 15/A, 10135 Turin, Italy
| | - Anna Clemente
- Paediatric Laboratory, Department of Public Health and Pediatric Sciences, Medical School, University of Turin, 10136 Turin, Italy; (M.D.); (A.C.); (C.C.); (A.P.); (I.G.)
| | - Cristina Calvi
- Paediatric Laboratory, Department of Public Health and Pediatric Sciences, Medical School, University of Turin, 10136 Turin, Italy; (M.D.); (A.C.); (C.C.); (A.P.); (I.G.)
- Department of Pediatrics, Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Piazza Polonia 94, 10126 Turin, Italy
| | - Anna Pau
- Paediatric Laboratory, Department of Public Health and Pediatric Sciences, Medical School, University of Turin, 10136 Turin, Italy; (M.D.); (A.C.); (C.C.); (A.P.); (I.G.)
| | - Ilaria Galliano
- Paediatric Laboratory, Department of Public Health and Pediatric Sciences, Medical School, University of Turin, 10136 Turin, Italy; (M.D.); (A.C.); (C.C.); (A.P.); (I.G.)
- Department of Pediatrics, Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Piazza Polonia 94, 10126 Turin, Italy
| | - Stefano Gambarino
- Paediatric Laboratory, Department of Public Health and Pediatric Sciences, Medical School, University of Turin, 10136 Turin, Italy; (M.D.); (A.C.); (C.C.); (A.P.); (I.G.)
- BioMole srl, Via Quarello 15/A, 10135 Turin, Italy
| | - Massimiliano Bergallo
- Paediatric Laboratory, Department of Public Health and Pediatric Sciences, Medical School, University of Turin, 10136 Turin, Italy; (M.D.); (A.C.); (C.C.); (A.P.); (I.G.)
- BioMole srl, Via Quarello 15/A, 10135 Turin, Italy
- Department of Pediatrics, Infectious Diseases Unit, Regina Margherita Children’s Hospital, University of Turin, Piazza Polonia 94, 10126 Turin, Italy
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17
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Heidarnejad F, Bolhassani A, Ajdary S, Milani A, Sadeghi SA. Investigation of Immunostimulatory Effects of IFN-γ Cytokine and CD40 Ligand Costimulatory Molecule for Development of HIV-1 Therapeutic Vaccine Candidate. Adv Biol (Weinh) 2024; 8:e2300402. [PMID: 37840398 DOI: 10.1002/adbi.202300402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/22/2023] [Indexed: 10/17/2023]
Abstract
The most crucial disadvantage of DNA-based vaccines is their low immunogenicity; therefore, finding an effectual adjuvant is essential for their development. Herein, immunostimulatory effects of IFNγ cytokine and a CD40 ligand (CD40L) costimulatory molecule are evaluated as combined with an antigen, and also linked to an antigen in mice. For this purpose, after preparation of the HIV-1 Nef, IFNγ, and CD40L DNA constructs, and also their recombinant protein in an Escherichia coli expression system, nine groups of female BALB/c mice are immunized with different regimens of DNA constructs. About 3 weeks and also 3 months after the last injection, humoral and cellular immune responses are assessed in mice sera and splenocytes. Additionally, mice splenocytes are exposed to single-cycle replicable (SCR) HIV-1 virions for evaluating their potency in the secretion of cytokines in vitro. The data indicate that the linkage of IFNγ and CD40L to Nef antigen can significantly induce the Th-1 pathway and activate cytotoxic T lymphocytes compared to other regimens. Moreover, groups receiving the IFNγ-Nef and CD40L-Nef fusion DNA constructs show higher secretion of IFNγ and TNF-α from virion-infected lymphocytes than other groups. Therefore, the IFNγ-Nef and CD40L-Nef fusion DNA constructs are suggested to be a potential option for development of an efficient HIV-1 vaccine.
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Affiliation(s)
- Fatemeh Heidarnejad
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, 1316943551, Iran
| | - Azam Bolhassani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, 1316943551, Iran
| | - Soheila Ajdary
- Department of Immunology, Pasteur Institute of Iran, Tehran, 1316943551, Iran
| | - Alireza Milani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, 1316943551, Iran
- Iranian Comprehensive Hemophilia Care Center, Tehran, 1415863675, Iran
| | - Seyed Amir Sadeghi
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, 1316943551, Iran
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18
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Besteher B, Rocktäschel T, Garza AP, Machnik M, Ballez J, Helbing DL, Finke K, Reuken P, Güllmar D, Gaser C, Walter M, Opel N, Rita Dunay I. Cortical thickness alterations and systemic inflammation define long-COVID patients with cognitive impairment. Brain Behav Immun 2024; 116:175-184. [PMID: 38036270 DOI: 10.1016/j.bbi.2023.11.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/26/2023] [Accepted: 11/23/2023] [Indexed: 12/02/2023] Open
Abstract
As the heterogeneity of symptoms is increasingly recognized among long-COVID patients, it appears highly relevant to study potential pathophysiological differences along the different subtypes. Preliminary evidence suggests distinct alterations in brain structure and systemic inflammatory patterns in specific groups of long-COVID patients. To this end, we analyzed differences in cortical thickness and peripheral immune signature between clinical subgroups based on 3 T-MRI scans and signature inflammatory markers in n = 120 participants comprising healthy never-infected controls (n = 30), healthy COVID-19 survivors (n = 29), and subgroups of long-COVID patients with (n = 26) and without (n = 35) cognitive impairment according to screening with Montreal Cognitive Assessment. Whole-brain comparison of cortical thickness between the 4 groups was conducted by surface-based morphometry. We identified distinct cortical areas showing a progressive increase in cortical thickness across different groups, starting from healthy individuals who had never been infected with COVID-19, followed by healthy COVID-19 survivors, long-COVID patients without cognitive deficits (MoCA ≥ 26), and finally, long-COVID patients exhibiting significant cognitive deficits (MoCA < 26). These findings highlight the continuum of cortical thickness alterations associated with COVID-19, with more pronounced changes observed in individuals experiencing cognitive impairment (p < 0.05, FWE-corrected). Affected cortical regions covered prefrontal and temporal gyri, insula, posterior cingulate, parahippocampal gyrus, and parietal areas. Additionally, we discovered a distinct immunophenotype, with elevated levels of IL-10, IFNγ, and sTREM2 in long-COVID patients, especially in the group suffering from cognitive impairment. We demonstrate lingering cortical and immunological alterations in healthy and impaired subgroups of COVID-19 survivors. This implies a complex underlying pathomechanism in long-COVID and emphasizes the necessity to investigate the whole spectrum of post-COVID biology to determine targeted treatment strategies targeting specific sub-groups.
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Affiliation(s)
- Bianca Besteher
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Germany; German Center for Mental Health (DZPG), Germany; Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Halle-Jena-Magdeburg, Germany.
| | - Tonia Rocktäschel
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Germany; German Center for Mental Health (DZPG), Germany; Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Halle-Jena-Magdeburg, Germany
| | - Alejandra P Garza
- Institute of Inflammation and Neurodegeneration, Otto-von-Guericke-University, Magdeburg, Germany
| | - Marlene Machnik
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Germany
| | - Johanna Ballez
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Germany
| | - Dario-Lucas Helbing
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Germany; German Center for Mental Health (DZPG), Germany; Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Halle-Jena-Magdeburg, Germany
| | - Kathrin Finke
- Department of Neurology, Jena University Hospital, Germany
| | - Philipp Reuken
- Department of Internal Medicine IV, Gastroenterology, Hepatology and Infectious Diseases, Jena University Hospital, Germany
| | - Daniel Güllmar
- Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital - Friedrich Schiller University Jena, Germany
| | - Christian Gaser
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Germany; German Center for Mental Health (DZPG), Germany; Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Halle-Jena-Magdeburg, Germany; Department of Neurology, Jena University Hospital, Germany
| | - Martin Walter
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Germany; German Center for Mental Health (DZPG), Germany; Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Halle-Jena-Magdeburg, Germany
| | - Nils Opel
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Germany; German Center for Mental Health (DZPG), Germany; Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Halle-Jena-Magdeburg, Germany
| | - Ildiko Rita Dunay
- German Center for Mental Health (DZPG), Germany; Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Halle-Jena-Magdeburg, Germany; Institute of Inflammation and Neurodegeneration, Otto-von-Guericke-University, Magdeburg, Germany
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Chahardoli R, Robat-Jazi B, Azizi F, Amouzegar A, Khalili D, Zadeh-Vakili A, Mansouri F, Saboor-Yaraghi AA. Alterations in CD4+ T Cell Cytokines Profile in Female Patients with Hashimoto's Thyroiditis Following Vitamin D Supplementation: A Double-blind, Randomized Clinical Trial. Endocr Metab Immune Disord Drug Targets 2024:EMIDDT-EPUB-137950. [PMID: 38284726 DOI: 10.2174/0118715303273297231226153751] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/06/2023] [Accepted: 10/27/2023] [Indexed: 01/30/2024]
Abstract
BACKGROUND Hashimoto's thyroiditis (HT) is an autoimmune disease characterized by the destruction of thyroid cells through immune processes involving T helper (Th)1 cytokines. This clinical trial investigates the impact of vitamin D supplementation on serum cytokine levels and gene expression in CD4+ T cells from HT patients, aiming to understand its effects on Th-1, Th-2, Th-17, and regulatory T (Treg) cell-associated factors. METHODS Female patients were randomly assigned in a double-blind design to either a vitamin D-supplemented group, which received cholecalciferol [1, 25(OH)2D3] at a dose of 50,000 IU, or the placebo group, which received a weekly placebo for a duration of three months. Serum cytokine levels were assessed using enzyme-linked immunosorbent assay (ELISA), while genes' expression levels were measured using real-time PCR. RESULTS Serum 25-hydroxyvitamin D and levels exhibited a significant increase following vitamin D supplementation, in comparison to the placebo group. Additionally, the vitamin D supplementation resulted in a significant elevation of serum calcium (Ca) levels compared to baseline. In the vitamin D group, there was a significant decrease in both serum levels and expression of the interleukin (IL)-17 gene when compared to baseline, although no statistical difference was observed between the placebo and vitamin D groups. The gene expression of transforming growth factor-beta (TGFβ) was significantly increased in the vitamin D group compared to baseline, with no significant difference between the two study groups. Vitamin D treatment had no effect on serum levels of interferon-gamma (IFNϒ) and IL-4. While the gene expression of IL-4 in the vitamin D group did not exhibit a statistically significant increase, the level of GATA3 transcription factor increased significantly when compared to the placebo group. The expression of IFNϒ and transcription factors, T-bet, RORc, and forkhead box protein 3 (FOXP3) in genes did not show significant changes following vitamin D supplementation. CONCLUSION The findings suggest that vitamin D supplementation may hold potential benefits for autoimmune diseases, such as HT. However, further longitudinal clinical trials are necessary to gain a more comprehensive understanding of the specific effects of vitamin D on HT. CLINICAL TRIAL REGISTRATION NUMBER IRCT2016110130644N1.
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Affiliation(s)
- Reza Chahardoli
- School of Advanced Technologies in Medicine, Shaheed Beheshti University of Medical Sciences, Tehran, Iran
| | - Behrouz Robat-Jazi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fereidoun Azizi
- Research Institute for Endocrine Science, Shaheed Beheshti University of Medical Sciences, Tehran, Iran
| | - Atieh Amouzegar
- Research Institute for Endocrine Science, Shaheed Beheshti University of Medical Sciences, Tehran, Iran
| | - Davood Khalili
- Research Institute for Endocrine Science, Shaheed Beheshti University of Medical Sciences, Tehran, Iran
| | - Azita Zadeh-Vakili
- Research Institute for Endocrine Science, Shaheed Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Mansouri
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Akbar Saboor-Yaraghi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Sasaki H, Umezawa N, Itakura T, Iwai H, Yasuda S. Pathogenicity of functionally activated PD-1 +CD8 + cells and counterattacks by muscular PD-L1 through IFNγ in myositis. J Autoimmun 2024; 142:103131. [PMID: 37931332 DOI: 10.1016/j.jaut.2023.103131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/30/2023] [Accepted: 10/12/2023] [Indexed: 11/08/2023]
Abstract
Programmed-cell-death 1 (PD-1) expression is associated not only with T-cell activation but with exhaustion. Specifically, PD-1+ T cells present an exhausted phenotype in conditions of chronic antigen exposure, such as tumor microenvironments and chronic viral infection. However, the immune status regarding exhaustion of PD-1+CD8+ T cells in chronic autoimmune diseases including idiopathic inflammatory myopathies (IIMs) remains unclear. We aimed to clarify the role of PD-1+CD8+ T cells and PD-1 ligand (PD-L1) in IIMs. We showed that PD-1+ cells infiltrated into PD-L1-expressing muscles in patients with IIMs and immune checkpoint inhibitor-related myopathy. According to the peripheral blood immunophenotyping, the PD-1+CD8+ cell proportions were comparable between the active and inactive patients. Of note, PD-1+CD8+ cells in the active patients highly expressed cytolytic molecules, indicating their activation, while PD-1-CD8+ cells expressed low levels of cytolytic molecules in the active and inactive patients. A part of PD-1+CD8+ cells expressed the HMG-box transcription factor TOX highly and presented the exhausted phenotype in the active patients. Among PD-1+CD4+ T cells, PD-1highCXCR5-CD45RO+CD4+ peripheral helper T cells were increased in the active patients. PD-L1-deficient mice developed severer C-protein-induced myositis (CIM), a model of polymyositis, with abundant infiltration of PD-1+CD8+ cells expressing cytolytic molecules than wild-type mice, indicating pathogenicity of the PD-1+CD8+ cells and the protective role of PD-L1. The deficiency of IFNγ, a general PD-L1-inducer, impaired muscular PD-L1 expression and exacerbated CIM, indicating IFNγ-dependent muscular PD-L1 regulation. IFNγ-induced PD-L1 on myotubes was protective in an established muscle injury model. In conclusion, PD-1+CD8+ T cells rather than PD-1-CD8+ T cells were a pathogenic subset of IIMs. Muscular PD-L1 was regulated by IFNγ and exerted protective properties in IIMs.
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Affiliation(s)
- Hirokazu Sasaki
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Natsuka Umezawa
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takuji Itakura
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hideyuki Iwai
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shinsuke Yasuda
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
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21
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Tubero Euzebio Alves V, Bruno M, Mukherjee S, Wang L, Danaher R, Su L, Starr M, Gonzalez O. Sex-Related Effect of Aging in Gingival Gamma-Delta T Cells. J Dent Res 2024; 103:62-70. [PMID: 37968805 PMCID: PMC10985387 DOI: 10.1177/00220345231205210] [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] [Indexed: 11/17/2023] Open
Abstract
Aging affects the number and function of gamma-delta (γδ) T cells in a tissue-specific manner, modifying the risk for inflammatory disease. These aging-related γδT-cell variations in gingival tissues that could increase the risk for inflammation and periodontal disease remain unknown. Here we sought to identify quantitative and qualitative variations in gingival γδT cells associated with aging that could have an impact in oral immunoinflammatory responses. For this, gingival tissues from young (4 mo) and aged (24 mo) male and female mice were collected and analyzed by flow cytometry. Cell suspensions were stimulated and stained with eFluor450 (cell viability), anti-CD45 (hematopoietic cells), anti-CD3 (lymphocytes), anti-TCRγδ (γδT cells), anti-IL-15rα (cell proliferation), and anti-Notch-3 (senescence marker). Detection of intracellular cytokines IL-17A and interferon γ (IFNγ) was performed. Gingival expression of specific γ- and δ-chains and cytokines was evaluated by quantitative reverse transcription polymerase chain reaction. A significantly higher number of IL-17A-producing γδT cells and IL-17A expression levels were observed in gingival tissues from aged females but not males. Similarly, the number of gingival Notch-3+ γδT cells increased with aging only in females. IL-15rα was not detected in gingival γδT cells. Chains γ1, 2, 4, 5, 6, and 7 as well as δ1, 2, 4, and 6 were detected. Detection levels of all γ chains except γ1 as well as δ1 and δ2 changed with aging in males, females, or both. Interestingly, number of IL-17A-producing conventional T cells similarly increased with aging only in females. Both sexes showed increased IFNγ+ conventional T-cell numbers with aging; however, it reached significance only in females. In conclusion, the number of gingival IL-17A-producing γδT cells and IL-17A expression increase naturally with aging specifically in females. This sexual dimorphism in gingival γδT and conventional Th17 cell numbers and phenotypes suggests distinct aging-related mechanisms of periodontitis in males and females.
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Affiliation(s)
- V. Tubero Euzebio Alves
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, USA
| | - M.E.C. Bruno
- Department of Surgery, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - S. Mukherjee
- Department of Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - L. Wang
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, USA
| | - R.J. Danaher
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, USA
| | - L. Su
- Department of Statistics, College of Arts and Sciences, University of Kentucky, Lexington, KY, USA
| | - M.E. Starr
- Department of Surgery, College of Medicine, University of Kentucky, Lexington, KY, USA
- Department of Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - O.A. Gonzalez
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, USA
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Nematullah M, Fatma M, Rashid F, Ayasolla K, Ahmed ME, Mir S, Zahoor I, Rattan R, Giri S. Immuno-Responsive Gene-1: A mitochondrial gene regulates pathogenic Th17 in CNS autoimmunity mouse model. bioRxiv 2023:2023.12.24.573264. [PMID: 38234838 PMCID: PMC10793427 DOI: 10.1101/2023.12.24.573264] [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] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Pathogenic Th17 cells are crucial to CNS autoimmune diseases like multiple sclerosis (MS), though their control by endogenous mechanisms is unknown. RNAseq analysis of brain glial cells identified immuno-responsive gene 1 (Irg1), a mitochondrial-related enzyme-coding gene, as one of the highly upregulated gene under inflammatory conditions which were further validated in the spinal cord of animals with experimental autoimmune encephalomyelitis (EAE), an animal model of MS. Moreover, Irg1 mRNA and protein levels in myeloid, CD4, and B cells were higher in the EAE group, raising questions about its function in CNS autoimmunity. We observed that Irg1 knockout (KO) mice exhibited severe EAE disease and greater mononuclear cell infiltration, including triple-positive CD4 cells expressing IL17a, GM-CSF, and IFNγ. Lack of Irg1 in macrophages led to higher levels of Class II expression and polarized myelin primed CD4 cells into pathogenic Th17 cells through the NLRP3/IL1β axis. Our findings show that Irg1 in macrophages plays an important role in the formation of pathogenic Th17 cells, emphasizing its potential as a therapy for autoimmune diseases, including MS.
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Affiliation(s)
- Mohammad Nematullah
- Department of Neurology, Department of Women’s Health Services, Henry Ford Hospital, E&R Building, Room 4051, Detroit, USA
| | - Mena Fatma
- Department of Neurology, Department of Women’s Health Services, Henry Ford Hospital, E&R Building, Room 4051, Detroit, USA
| | - Faraz Rashid
- Department of Neurology, Department of Women’s Health Services, Henry Ford Hospital, E&R Building, Room 4051, Detroit, USA
| | - Kameshwar Ayasolla
- Department of Neurology, Department of Women’s Health Services, Henry Ford Hospital, E&R Building, Room 4051, Detroit, USA
| | - Mohammad Ejaz Ahmed
- Department of Neurology, Department of Women’s Health Services, Henry Ford Hospital, E&R Building, Room 4051, Detroit, USA
| | - Sajad Mir
- Department of Neurology, Department of Women’s Health Services, Henry Ford Hospital, E&R Building, Room 4051, Detroit, USA
| | - Insha Zahoor
- Department of Neurology, Department of Women’s Health Services, Henry Ford Hospital, E&R Building, Room 4051, Detroit, USA
| | - Ramandeep Rattan
- Division of Gynaecology Oncology, Department of Women’s Health Services, Henry Ford Hospital, E&R Building, Room 4051, Detroit, USA
| | - Shailendra Giri
- Department of Neurology, Department of Women’s Health Services, Henry Ford Hospital, E&R Building, Room 4051, Detroit, USA
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Wang Y, Hollingsworth LR, Sangaré LO, Paredes-Santos TC, Krishnamurthy S, Penn BH, Wu H, Saeij JPJ. Host E3 ubiquitin ligase ITCH mediates Toxoplasma gondii effector GRA35-triggered NLRP1 inflammasome activation and cell-autonomous immunity. bioRxiv 2023:2023.12.13.571530. [PMID: 38168400 PMCID: PMC10760081 DOI: 10.1101/2023.12.13.571530] [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] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Toxoplasma gondii is an intracellular parasite that can activate the NLRP1 inflammasome leading to macrophage pyroptosis in Lewis rats, but the underlying mechanism is not well understood. In this study, we performed a genome-wide CRISPR screen and identified the dense granule proteins GRA35, GRA42, and GRA43 as the Toxoplasma effectors mediating cell death in Lewis rat macrophages. GRA35 localizes on the parasitophorous vacuole membrane, where it interacts with the host E3 ubiquitin ligase ITCH. Inhibition of proteasome activity or ITCH knockout prevented pyroptosis in Toxoplasma-infected Lewis rat macrophages, consistent with the "NLRP1 functional degradation model". However, there was no evidence that ITCH directly ubiquitinates or interacts with rat NLRP1. We also found that GRA35-ITCH interaction affected Toxoplasma fitness in IFNγ-activated human fibroblasts, likely due to ITCH's role in recruiting ubiquitin and the parasite-restriction factor RNF213 to the parasitophorous vacuole membrane. These findings identify a new role of host E3 ubiquitin ligase ITCH in mediating effector-triggered immunity, a critical concept that involves recognizing intracellular pathogens and initiating host innate immune responses.
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Affiliation(s)
- Yifan Wang
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - L. Robert Hollingsworth
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA, USA
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA, USA
| | - Lamba Omar Sangaré
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
- Department of Biology, Texas A&M University, College Station, TX, USA
| | - Tatiana C. Paredes-Santos
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Shruthi Krishnamurthy
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Bennett H. Penn
- Department of Internal Medicine, Division of Infectious Diseases, UC Davis Health, Sacramento, CA, USA
- Department of Medical Microbiology and Immunology, University of California, Davis, Davis, CA, USA
| | - Hao Wu
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA, USA
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA, USA
| | - Jeroen P. J. Saeij
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
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Marshall C, Hemshekhar M, Lloyd D, Mookherjee N. IFNγ-mediated IL-33 production is dependent on the aryl hydrocarbon receptor in human bronchial epithelial cells. Cytokine 2023; 172:156414. [PMID: 37918052 DOI: 10.1016/j.cyto.2023.156414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/21/2023] [Accepted: 10/27/2023] [Indexed: 11/04/2023]
Abstract
IL-33 is an alarmin produced by stromal cells and is known to promote airway inflammation. IL-33 is a critical mediator of steroid-unresponsiveness in severe asthma. We have previously shown that IFNγ, a cytokine known to be elevated in airway inflammation and severe asthma, enhances the abundance of IL-33 in bronchial epithelial cells. Previous studies have shown that environmental insults such as particulate matter results in activation of the aryl hydrocarbon receptor (AhR) and IL-33 production. However, the role of AhR in cytokine-mediated IL-33 production is unknown. In this study, we demonstrate that the knockdown of AhR results in significant decrease in IFNγ-mediated IL-33 production and phosphorylation of STAT1 (Y701), in human bronchial epithelial cells. The findings of this report suggest that AhR may be an essential component in IFNγ-mediated IL-33 production in the lungs.
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Affiliation(s)
- Courtney Marshall
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Mahadevappa Hemshekhar
- Manitoba Centre for Proteomics and Systems Biology, Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Dylan Lloyd
- Manitoba Centre for Proteomics and Systems Biology, Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Neeloffer Mookherjee
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada; Manitoba Centre for Proteomics and Systems Biology, Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada.
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25
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Capuano C, De Federicis D, Ciuti D, Turriziani O, Angeloni A, Anastasi E, Giannini G, Belardinilli F, Molfetta R, Alvaro D, Palmieri G, Galandrini R. Impact of SARS-CoV-2 vaccination on FcγRIIIA/CD16 dynamics in Natural Killer cells: relevance for antibody-dependent functions. Front Immunol 2023; 14:1285203. [PMID: 38045702 PMCID: PMC10693335 DOI: 10.3389/fimmu.2023.1285203] [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] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/27/2023] [Indexed: 12/05/2023] Open
Abstract
Introduction Natural Killer (NK) cells contribute to the protective effects of vaccine-induced antibodies thanks to the low affinity receptor for IgG, FcγRIIIA/CD16, whose aggregation leads to the killing of infected cells and IFNγ release, through which they potentiate adaptive immune responses. Methods Forty-seven healthy young individuals undergoing either homologous (ChAdOx1-S/ChAdOx1-S) or heterologous (ChAdOx1-S/BNT162B2) SARS-CoV-2 vaccination settings were recruited. Peripheral blood samples were collected immediately prior to vaccination and 8 weeks after the booster dose. The phenotypic and functional profile of NK cells was evaluated by flow cytometry at both time points. Serum samples were tested to evaluate circulating anti-Spike IgG levels and cytomegalovirus serostatus. CD16 F158V polymorphism was assessed by sequencing analysis. Results The downregulation of CD16 and the selective impairment of antibody-dependent cytotoxicity and IFNγ production in CD56dim NK population, persisting 8 weeks after boosting, were observed in heterologous, but not in homologous SARS-CoV-2 vaccination scheme. While the magnitude of CD16-dependent functions of the global CD56dim pool correlated with receptor levels before and after vaccination, the responsivity of NKG2C+ subset, that displays amplified size and functionality in HCMV+ individuals, resulted intrinsically insensitive to CD16 levels. Individual CD16 responsiveness was also affected by CD16F158V polymorphism; F/F low affinity individuals, characterized by reduced CD16 levels and functions independently of vaccination, did not show post-vaccinal functional impairment with respect to intermediate and high affinity ones, despite a comparable CD16 downregulation. Further, CD16 high affinity ligation conditions by means of afucosylated mAb overcame vaccine-induced and genotype-dependent functional defects. Finally, the preservation of CD16 expression directly correlated with anti-Spike IgG titer, hinting that the individual magnitude of receptor-dependent functions may contribute to the amplification of the vaccinal response. Conclusion This study demonstrates a durable downmodulation of CD16 levels and Ab-dependent NK functions after SARS-CoV-2 heterologous vaccination, and highlights the impact of genetic and environmental host-related factors in modulating NK cell susceptibility to post-vaccinal Fc-dependent functional impairment.
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Affiliation(s)
- Cristina Capuano
- Departmental Faculty of Medicine and Surgery, UniCamillus-Saint Camillus International University of Health and Medical Sciences, Rome, Italy
| | - Davide De Federicis
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Daniel Ciuti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Antonio Angeloni
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Emanuela Anastasi
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Giuseppe Giannini
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Rosa Molfetta
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Domenico Alvaro
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Gabriella Palmieri
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
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Tang M, Zhao Y, Zhai Y, Zhang Y, Liu Y, Liu T, Wu J, He L, Yao Y, Xue P, He M, Xu Y, Feng S, Qu W, Zhang Y. Mercury chloride activates the IFNγ-IRF1 signaling in myeloid progenitors and promotes monopoiesis in mice. Environ Pollut 2023; 337:122583. [PMID: 37741541 DOI: 10.1016/j.envpol.2023.122583] [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: 06/09/2023] [Revised: 08/21/2023] [Accepted: 09/17/2023] [Indexed: 09/25/2023]
Abstract
Inorganic mercury (Hg2+) is a highly toxic heavy metal in the environment. To date, the impacts of Hg2+ on the development of monocytes, or monopoiesis, have not been fully addressed. The aim of the present study was to investigate the impact of Hg2+ on monopoiesis. In this study, we treated B10.S mice and DBA/2 mice with 10 μM or 50 μM HgCl2 via drinking water for 4 wk, and we then evaluated the development of monocytes. Treatment with 50 μM HgCl2, but not 10 μM HgCl2, increased the number of monocytes in the blood, spleen and bone marrow (BM) of B10.S mice. Accordingly, treatment with 50 μM HgCl2, but not 10 μM HgCl2, increased the number of common myeloid progenitors (CMP) and granulocyte-macrophage progenitors (GMP) in the BM. Functional analyses indicated that treatment with 50 μM HgCl2 promoted the differentiation of CMP and GMP to monocytes in the BM of B10.S mice. Mechanistically, treatment with 50 μM HgCl2 induced the production of IFNγ, which activated the Jak1/3-STAT1/3-IRF1 signaling in CMP and GMP and enhanced their differentiation potential for monocytes in the BM, thus likely leading to increased number of mature monocytes in B10.S mice. Moreover, the increased monopoiesis by Hg2+ was associated with the increased inflammatory status in B10.S mice. In contrast, treatment with 50 μM HgCl2 did not impact the monopoiesis in DBA/2 mice. Our study reveals the impact of Hg on the development of monocytes.
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Affiliation(s)
- Mengke Tang
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Yifan Zhao
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Yue Zhai
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Yufan Zhang
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Yalin Liu
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Ting Liu
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Jiaojiao Wu
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Leyi He
- China Medical University-The Queen's University of Belfast Joint College, China Medical University, Shenyang, 110121, China
| | - Ye Yao
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Peng Xue
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Miao He
- State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Fudan University, Shanghai, 200032, China
| | - Yanyi Xu
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Shaoqing Feng
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China
| | - Weidong Qu
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China
| | - Yubin Zhang
- School of Public Health and Key Laboratory of Public Health Safety, MOE, Fudan University, Shanghai, 200032, China.
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Dharmarajan S, Carrillo C, Qi Z, Wilson JM, Baucum AJ, Sorenson CM, Sheibani N, Belecky-Adams TL. Retinal inflammation in murine models of type 1 and type 2 diabetes with diabetic retinopathy. Diabetologia 2023; 66:2170-2185. [PMID: 37670018 PMCID: PMC10541343 DOI: 10.1007/s00125-023-05995-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 06/28/2023] [Indexed: 09/07/2023]
Abstract
AIMS/HYPOTHESIS The loss of pericytes surrounding the retinal vasculature in early diabetic retinopathy underlies changes to the neurovascular unit that lead to more destructive forms of the disease. However, it is unclear which changes lead to loss of retinal pericytes. This study investigated the hypothesis that chronic increases in one or more inflammatory factors mitigate the signalling pathways needed for pericyte survival. METHODS Loss of pericytes and levels of inflammatory markers at the mRNA and protein levels were investigated in two genetic models of diabetes, Ins2Akita/+ (a model of type 1 diabetes) and Leprdb/db (a model of type 2 diabetes), at early stages of diabetic retinopathy. In addition, changes that accompany gliosis and the retinal vasculature were determined. Finally, changes in retinal pericytes chronically incubated with vehicle or increasing amounts of IFNγ were investigated to determine the effects on pericyte survival. The numbers of pericytes, microglia, astrocytes and endothelial cells in retinal flatmounts were determined by immunofluorescence. Protein and mRNA levels of inflammatory factors were determined using multiplex ELISAs and quantitative reverse transcription PCR (qRT-PCR). The effects of IFNγ on the murine retinal pericyte survival-related platelet-derived growth factor receptor β (PDGFRβ) signalling pathway were investigated by western blot analysis. Finally, the levels of cell death-associated protein kinase C isoform delta (PKCδ) and cleaved caspase 3 (CC3) in pericytes were determined by western blot analysis and immunocytochemistry. RESULTS The essential findings of this study were that both type 1 and 2 diabetes were accompanied by a similar progression of retinal pericyte loss, as well as gliosis. However, inflammatory factor expression was dissimilar in the two models of diabetes, with peak expression occurring at different ages for each model. Retinal vascular changes were more severe in the type 2 diabetes model. Chronic incubation of murine retinal pericytes with IFNγ decreased PDGFRβ signalling and increased the levels of active PKCδ and CC3. CONCLUSIONS/INTERPRETATION We conclude that retinal inflammation is involved in and sustains pericyte loss as diabetic retinopathy progresses. Moreover, IFNγ plays a critical role in reducing pericyte survival in the retina by reducing activation of the PDGFRβ signalling pathway and increasing PKCδ levels and pericyte apoptosis.
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Affiliation(s)
- Subramanian Dharmarajan
- Department of Biology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA
| | - Casandra Carrillo
- Department of Biology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA
| | - Zhonghua Qi
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Jonathan M Wilson
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Anthony J Baucum
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Christine M Sorenson
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Nader Sheibani
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Teri L Belecky-Adams
- Department of Biology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA.
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Elizalde-Torrent A, Borgognone A, Casadellà M, Romero-Martin L, Escribà T, Parera M, Rosales-Salgado Y, Díaz-Pedroza J, Català-Moll F, Noguera-Julian M, Brander C, Paredes R, Olvera A. Vaccination with an HIV T-Cell Immunogen (HTI) Using DNA Primes Followed by a ChAdOx1-MVA Boost Is Immunogenic in Gut Microbiota-Depleted Mice despite Low IL-22 Serum Levels. Vaccines (Basel) 2023; 11:1663. [PMID: 38005995 PMCID: PMC10675013 DOI: 10.3390/vaccines11111663] [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: 09/05/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/26/2023] Open
Abstract
Despite the important role of gut microbiota in the maturation of the immune system, little is known about its impact on the development of T-cell responses to vaccination. Here, we immunized C57BL/6 mice with a prime-boost regimen using DNA plasmid, the Chimpanzee Adenovirus, and the modified Vaccinia Ankara virus expressing a candidate HIV T-cell immunogen and compared the T-cell responses between individuals with an intact or antibiotic-depleted microbiota. Overall, the depletion of the gut microbiota did not result in significant differences in the magnitude or breadth of the immunogen-specific IFNγ T-cell response after vaccination. However, we observed marked changes in the serum levels of four cytokines after vaccinating microbiota-depleted animals, particularly a significant reduction in IL-22 levels. Interestingly, the level of IL-22 in serum correlated with the abundance of Roseburia in the large intestine of mice in the mock and vaccinated groups with intact microbiota. This short-chain fatty acid (SCFA)-producing bacterium was significantly reduced in the vaccinated, microbiota-depleted group. Therefore, our results indicate that, although microbiota depletion reduces serum levels of IL-22, the powerful vaccine regime used could have overcome the impact of microbiota depletion on IFNγ-producing T-cell responses.
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Affiliation(s)
- Aleix Elizalde-Torrent
- Irsicaixa—AIDS Research Institute, 08916 Barcelona, Spain; (A.E.-T.); (A.B.); (M.C.); (L.R.-M.); (T.E.); (M.P.); (F.C.-M.); (M.N.-J.); (C.B.); (R.P.)
| | - Alessandra Borgognone
- Irsicaixa—AIDS Research Institute, 08916 Barcelona, Spain; (A.E.-T.); (A.B.); (M.C.); (L.R.-M.); (T.E.); (M.P.); (F.C.-M.); (M.N.-J.); (C.B.); (R.P.)
| | - Maria Casadellà
- Irsicaixa—AIDS Research Institute, 08916 Barcelona, Spain; (A.E.-T.); (A.B.); (M.C.); (L.R.-M.); (T.E.); (M.P.); (F.C.-M.); (M.N.-J.); (C.B.); (R.P.)
| | - Luis Romero-Martin
- Irsicaixa—AIDS Research Institute, 08916 Barcelona, Spain; (A.E.-T.); (A.B.); (M.C.); (L.R.-M.); (T.E.); (M.P.); (F.C.-M.); (M.N.-J.); (C.B.); (R.P.)
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autonoma de Barcelona (UAB), 08193 Cerdanyola del Valles, Spain
| | - Tuixent Escribà
- Irsicaixa—AIDS Research Institute, 08916 Barcelona, Spain; (A.E.-T.); (A.B.); (M.C.); (L.R.-M.); (T.E.); (M.P.); (F.C.-M.); (M.N.-J.); (C.B.); (R.P.)
| | - Mariona Parera
- Irsicaixa—AIDS Research Institute, 08916 Barcelona, Spain; (A.E.-T.); (A.B.); (M.C.); (L.R.-M.); (T.E.); (M.P.); (F.C.-M.); (M.N.-J.); (C.B.); (R.P.)
| | - Yaiza Rosales-Salgado
- Fundació Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), 08916 Badalona, Spain; (Y.R.-S.); (J.D.-P.)
| | - Jorge Díaz-Pedroza
- Fundació Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), 08916 Badalona, Spain; (Y.R.-S.); (J.D.-P.)
| | - Francesc Català-Moll
- Irsicaixa—AIDS Research Institute, 08916 Barcelona, Spain; (A.E.-T.); (A.B.); (M.C.); (L.R.-M.); (T.E.); (M.P.); (F.C.-M.); (M.N.-J.); (C.B.); (R.P.)
| | - Marc Noguera-Julian
- Irsicaixa—AIDS Research Institute, 08916 Barcelona, Spain; (A.E.-T.); (A.B.); (M.C.); (L.R.-M.); (T.E.); (M.P.); (F.C.-M.); (M.N.-J.); (C.B.); (R.P.)
- Facultat de Medicina, Universitat de Vic—Universitat Central de Catalunya (UVic-UCC), 08500 Vic, Spain
- CIBERINFEC—ISCIII, 28029 Madrid, Spain
| | - Christian Brander
- Irsicaixa—AIDS Research Institute, 08916 Barcelona, Spain; (A.E.-T.); (A.B.); (M.C.); (L.R.-M.); (T.E.); (M.P.); (F.C.-M.); (M.N.-J.); (C.B.); (R.P.)
- Facultat de Medicina, Universitat de Vic—Universitat Central de Catalunya (UVic-UCC), 08500 Vic, Spain
- CIBERINFEC—ISCIII, 28029 Madrid, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
- Aelix Therapeutics, 08028 Barcelona, Spain
| | - Roger Paredes
- Irsicaixa—AIDS Research Institute, 08916 Barcelona, Spain; (A.E.-T.); (A.B.); (M.C.); (L.R.-M.); (T.E.); (M.P.); (F.C.-M.); (M.N.-J.); (C.B.); (R.P.)
- Facultat de Medicina, Universitat de Vic—Universitat Central de Catalunya (UVic-UCC), 08500 Vic, Spain
- CIBERINFEC—ISCIII, 28029 Madrid, Spain
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA
- Fight AIDS Foundation, Infectious Diseases Department, Germans Trias i Pujol University Hospital, 08916 Badalona, Spain
- Department of Infectious Diseases Service, Germans Trias i Pujol University Hospital, 08916 Badalona, Spain
| | - Alex Olvera
- Irsicaixa—AIDS Research Institute, 08916 Barcelona, Spain; (A.E.-T.); (A.B.); (M.C.); (L.R.-M.); (T.E.); (M.P.); (F.C.-M.); (M.N.-J.); (C.B.); (R.P.)
- CIBERINFEC—ISCIII, 28029 Madrid, Spain
- Facultat de Ciències, Tecnologia i Enginyeries, Universitat de Vic—Universitat Central de Catalunya (UVic-UCC), 08500 Vic, Spain
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Jeong SY, Yu HS, Ra MJ, Jung SM, Yu JN, Kim JC, Kim KH. Phytochemical Investigation of Equisetum arvense and Evaluation of Their Anti-Inflammatory Potential in TNFα/INFγ-Stimulated Keratinocytes. Pharmaceuticals (Basel) 2023; 16:1478. [PMID: 37895949 PMCID: PMC10609812 DOI: 10.3390/ph16101478] [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: 09/13/2023] [Revised: 10/09/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
Equisetum arvense L. (Equisetaceae), widely known as 'horsetail', is a perennial plant found extensively across Asia. Extracts of E. arvense have been used in traditional medicine, particularly for the treatment of inflammatory disorders. This study aimed to determine the phytochemical compounds in E. arvense ethanolic extract and their anti-inflammatory properties. Subsequently, we isolated and identified nine secondary metabolites, including kaempferol 3,7-di-O-β-D-glucopyranoside (1), icariside B2 (2), (Z)-3-hexenyl β-D-glucopyranoside (3), luteolin 5-O-β-D-glucopyranoside (4), 4-O-β-D-glucopyranosyl caffeic acid (5), clemastanin B (6), 4-O-caffeoylshikimic acid (7), (7S,8S)-threo-7,9,9'-trihydroxy-3,3'-dimethoxy-8-O-4'-neolignan-4-O-β-D-glucopyranoside (8), and 3-O-caffeoylshikimic acid (9). The chemical structures of the isolated compounds (1-9) were elucidated using HR-ESI-MS data, NMR spectra, and ECD data. Next, the anti-inflammatory effects of the isolates were evaluated in tumor necrosis factor (TNF)α/interferon (IFN)γ-induced HaCaT, a human keratinocyte cell line. Among the isolates, compound 3 showed the highest inhibitory effect on the expression of pro-inflammatory chemokines, followed by compounds 6 and 8. Correspondingly, the preceding isolates inhibited TNFα/IFNγ-induced activation of pro-inflammatory transcription factors, signal transducer and activator of transcription 1, and nuclear factor-κB. Collectively, E. arvense could be employed for the development of prophylactic or therapeutic agents for improving dermatitis.
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Affiliation(s)
- Se Yun Jeong
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea;
| | - Hyung-Seok Yu
- Natural Product Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea;
| | - Moon-Jin Ra
- Hongcheon Institute of Medicinal Herb, Hongcheon-gun 25142, Republic of Korea; (M.-J.R.); (S.-M.J.)
| | - Sang-Mi Jung
- Hongcheon Institute of Medicinal Herb, Hongcheon-gun 25142, Republic of Korea; (M.-J.R.); (S.-M.J.)
| | - Jeong-Nam Yu
- Nakdonggang National Institute of Biological Resources, Sangju 37242, Republic of Korea;
| | - Jin-Chul Kim
- Natural Product Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea;
- Division of Bio-Medical Science and Technology, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea;
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Won HY, Liman N, Li C, Park JH. Proinflammatory IFNγ Is Produced by but Not Required for the Generation of Eomes + Thymic Innate CD8 T Cells. Cells 2023; 12:2433. [PMID: 37887277 PMCID: PMC10605631 DOI: 10.3390/cells12202433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 09/30/2023] [Accepted: 10/07/2023] [Indexed: 10/28/2023] Open
Abstract
Innate CD8 T cells are proinflammatory effector T cells that achieve functional maturation in the thymus prior to their export into and maturation in peripheral tissues. Innate CD8 T cells produce the Th1 cytokine IFNγ but depend on the Th2 cytokine IL-4 for their generation. Thus, innate CD8 T cells can permute the intrathymic cytokine milieu by consuming a Th2 cytokine but driving a Th1 cytokine response. The cellular source of IL-4 is the NKT2 subset of invariant NKT (iNKT) cells. Consequently, NKT2 deficiency results in the lack of innate CD8 T cells. Whether NKT2 is the only iNKT subset and whether IL-4 is the only cytokine required for innate CD8 T cell generation, however, remains unclear. Here, we employed a mouse model of NKT1 deficiency, which is achieved by overexpression of the cytokine receptor IL-2Rβ, and assessed the role of other iNKT subsets and cytokines in innate CD8 T cell differentiation. Because IL-2Rβ-transgenic mice failed to generate both NKT1 and innate CD8 T cells, we postulated an in vivo requirement for IFNγ-producing NKT1 cells for innate CD8 T cell development. In-depth analyses of IL-2Rβ-transgenic mice and IFNγ-deficient mice, however, demonstrated that neither NKT1 nor IFNγ was required to induce Eomes or to drive innate CD8 T cell generation. Instead, in vivo administration of recombinant IL-4 sufficed to restore the development of innate CD8 T cells in NKT1-deficient mice, affirming that intrathymic IL-4, and not IFNγ, is the limiting factor and key regulator of innate CD8 T cell generation in the thymus.
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Affiliation(s)
| | | | | | - Jung-Hyun Park
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA; (H.Y.W.); (N.L.); (C.L.)
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Champhekar A, Heymans R, Saco J, Turon Font G, Gonzalez C, Gao A, Pham J, Lee J, Maryoung R, Medina E, Campbell KM, Karin D, Austin D, Damioseaux R, Ribas A. ERK mediates interferon gamma-induced melanoma cell death. Mol Cancer 2023; 22:165. [PMID: 37803324 PMCID: PMC10557262 DOI: 10.1186/s12943-023-01868-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 09/25/2023] [Indexed: 10/08/2023] Open
Abstract
BACKGROUND Interferon-gamma (IFNγ) exerts potent growth inhibitory effects on a wide range of cancer cells through unknown signaling pathways. We pursued complementary screening approaches to characterize the growth inhibition pathway. METHODS We performed chemical genomics and whole genome targeting CRISPR/Cas9 screens using patient-derived melanoma lines to uncover essential nodes in the IFNγ-mediated growth inhibition pathway. We used transcriptomic profiling to identify cell death pathways activated upon IFNγ exposure. Live imaging experiments coupled with apoptosis assays confirmed the involvement of these pathways in IFNγ-mediated cell death. RESULTS We show that IFNγ signaling activated ERK. Blocking ERK activation rescued IFNγ-mediated apoptosis in 17 of 23 (~ 74%) cell lines representing BRAF, NRAS, NF1 mutant, and triple wild type subtypes of cutaneous melanoma. ERK signaling induced a stress response, ultimately leading to apoptosis through the activity of DR5 and NOXA proteins. CONCLUSIONS Our results provide a new understanding of the IFNγ growth inhibition pathway, which will be crucial in defining mechanisms of immunotherapy response and resistance.
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Affiliation(s)
- Ameya Champhekar
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
| | - Rachel Heymans
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Justin Saco
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, CA, 90095, USA
| | - Guillem Turon Font
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Cynthia Gonzalez
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Anne Gao
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - John Pham
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - June Lee
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ryan Maryoung
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Egmidio Medina
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Katie M Campbell
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Daniel Karin
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, CA, 90095, USA
| | - David Austin
- California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Robert Damioseaux
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, CA, 90095, USA
- California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
- Jonsson Comprehensive Cancer Center, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Samueli School of Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Antoni Ribas
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
- Jonsson Comprehensive Cancer Center, Los Angeles, CA, 90095, USA.
- Division of Surgical Oncology, Department of Surgery, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, 94129, USA.
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Barilli A, Recchia Luciani G, Visigalli R, Sala R, Soli M, Dall’Asta V, Rotoli BM. Cytokine-Induced iNOS in A549 Alveolar Epithelial Cells: A Potential Role in COVID-19 Lung Pathology. Biomedicines 2023; 11:2699. [PMID: 37893073 PMCID: PMC10603955 DOI: 10.3390/biomedicines11102699] [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: 08/29/2023] [Revised: 09/22/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND In COVID-19, an uncontrolled inflammatory response might worsen lung damage, leading to acute respiratory distress syndrome (ARDS). Recent evidence points to the induction of inducible nitric oxide synthase (NOS2/iNOS) as a component of inflammatory response since NOS2 is upregulated in critical COVID-19 patients. Here, we explore the mechanisms underlying the modulation of iNOS expression in human alveolar cells. METHODS A549 WT and IRF1 KO cells were exposed to a conditioned medium of macrophages treated with SARS-CoV-2 spike S1. Additionally, the effect of IFNγ, IL-1β, IL-6, and TNFα, either alone or combined, was addressed. iNOS expression was assessed with RT-qPCR and Western blot. The effect of baricitinib and CAPE, inhibitors of JAK/STAT and NF-kB, respectively, was also investigated. RESULTS Treatment with a conditioned medium caused a marked induction of iNOS in A549 WT and a weak stimulation in IRF1 KO. IFNγ induced NOS2 and synergistically cooperated with IL-1β and TNFα. The inhibitory pattern of baricitinb and CAPE indicates that cytokines activate both IRF1 and NF-κB through the JAK/STAT1 pathway. CONCLUSIONS Cytokines secreted by S1-activated macrophages markedly induce iNOS, whose expression is suppressed by baricitinib. Our findings sustain the therapeutic efficacy of this drug in COVID-19 since, besides limiting the cytokine storm, it also prevents NOS2 induction.
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Affiliation(s)
- Amelia Barilli
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
| | - Giulia Recchia Luciani
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
| | - Rossana Visigalli
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
| | - Roberto Sala
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
| | - Maurizio Soli
- Immunohematology and Transfusion Medicine, University Hospital of Parma, 43125 Parma, Italy
| | - Valeria Dall’Asta
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
| | - Bianca Maria Rotoli
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
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Qiao S, Peng Y, Zhang C, Thomas R, Wang S, Yang X. IFNγ-Producing B Cells Play a Regulating Role in Infection-Mediated Inhibition of Allergy. Biology (Basel) 2023; 12:1259. [PMID: 37759658 PMCID: PMC10525206 DOI: 10.3390/biology12091259] [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] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023]
Abstract
The hygiene hypothesis suggests that some infections may inhibit the development of allergic diseases, but the mechanism remains unclear. Our previous study has shown that Chlamydia muridarum (Cm) lung infection can inhibit local eosinophilic inflammation induced by ovalbumin (OVA) through the modulation of dendritic cell (DC) and T cell responses in mice. In this study, we explored the role of B cells in the chlamydial-infection-mediated modulation of allergic responses. The results showed that adoptive transfer of B cells isolated from Cm-infected mice (Cm-B cells), unlike those from naïve mice (naïve B cells), could effectively inhibit allergic airway eosinophilia and mucus overproduction, as well as Th2 cytokine responses. In addition, total IgE/IgG1 and OVA-specific IgE/IgG1 antibodies in the serum were also decreased by the adoptive transfer of Cm-B cells. Intracellular cytokine analysis showed that B cells from Cm-infected mice produced higher levels of IFNγ than those from naïve mice. More interestingly, the inhibiting effect of adoptively transferred Cm-B cells on allergic reactions was virtually abolished by the simultaneous blockade of IFNγ using a monoclonal antibody. The results suggest that B cells modulated by chlamydial lung infection could play a regulatory role in OVA-induced acute allergic responses in the lung via the production of IFNγ. The results provide new insights into the targets related to the prevention and treatment of allergic diseases.
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Affiliation(s)
- Sai Qiao
- Department of Immunology, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada; (S.Q.); (Y.P.); (C.Z.); (R.T.); (S.W.)
- Department of Medical Microbiology and Infectious Diseases, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
| | - Ying Peng
- Department of Immunology, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada; (S.Q.); (Y.P.); (C.Z.); (R.T.); (S.W.)
- Department of Medical Microbiology and Infectious Diseases, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada
| | - Chunyan Zhang
- Department of Immunology, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada; (S.Q.); (Y.P.); (C.Z.); (R.T.); (S.W.)
- Department of Medical Microbiology and Infectious Diseases, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada
| | - Rony Thomas
- Department of Immunology, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada; (S.Q.); (Y.P.); (C.Z.); (R.T.); (S.W.)
- Department of Medical Microbiology and Infectious Diseases, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada
| | - Shuhe Wang
- Department of Immunology, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada; (S.Q.); (Y.P.); (C.Z.); (R.T.); (S.W.)
- Department of Medical Microbiology and Infectious Diseases, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada
| | - Xi Yang
- Department of Immunology, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada; (S.Q.); (Y.P.); (C.Z.); (R.T.); (S.W.)
- Department of Medical Microbiology and Infectious Diseases, Rady Max College of Medicine, University of Manitoba, Winnipeg, MB R3E 0T5, Canada
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Hada A, Li L, Kandel A, Jin Y, Xiao Z. Characterization of Bovine Intraepithelial T Lymphocytes in the Gut. Pathogens 2023; 12:1173. [PMID: 37764981 PMCID: PMC10535955 DOI: 10.3390/pathogens12091173] [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: 08/23/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Intraepithelial T lymphocytes (T-IELs), which constitute over 50% of the total T lymphocytes in the animal, patrol the mucosal epithelial lining to defend against pathogen invasion while maintaining gut homeostasis. In addition to expressing T cell markers such as CD4 and CD8, T-IELs display T cell receptors (TCR), including either TCRαβ or TCRγδ. Both humans and mice share similar T-IEL subsets: TCRγδ+, TCRαβ+CD8αα+, TCRαβ+CD4+, and TCRαβ+CD8αβ+. Among these subsets, human T-IELs are predominantly TCRαβ+ (over 80%), whereas those in mice are mostly TCRγδ+ (~60%). Of note, the majority of the TCRγδ+ subset expresses CD8αα in both species. Although T-IELs have been extensively studied in humans and mice, their profiles in cattle have not been well examined. Our study is the first to characterize bovine T-IELs using flow cytometry, where we identified several distinct features. The percentage of TCRγδ+ was comparable to that of TCRαβ+ T-IELs (both ~50% of CD3+), and the majority of bovine TCRγδ+ T-IELs did not express CD8 (CD8-) (above 60%). Furthermore, about 20% of TCRαβ+ T-IELs were CD4+CD8αβ+, and the remaining TCRαβ+ T-IELs were evenly distributed between CD4+ and CD8αβ+ (~40% of TCRαβ+ T-IELs each) with no TCRαβ+CD8αα+ identified. Despite these unique properties, bovine T-IELs, similar to those in humans and mice, expressed a high level of CD69, an activation and tissue-retention marker, and a low level of CD62L, a lymphoid adhesion marker. Moreover, bovine T-IELs produced low levels of inflammatory cytokines such as IFNγ and IL17A, and secreted small amounts of the immune regulatory cytokine TGFβ1. Hence, bovine T-IELs' composition largely differs from that of human and mouse, with the dominance of the CD8- population among TCRγδ+ T-IELs, the substantial presence of TCRαβ+CD4+CD8αβ+ cells, and the absence of TCRαβ+CD8αα+ T-IELs. These results provide the groundwork for conducting future studies to examine how bovine T-IELs respond to intestinal pathogens and maintain the integrity of the gut epithelial barrier in animals.
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Affiliation(s)
| | | | | | | | - Zhengguo Xiao
- Department of Animal and Avian Sciences, University of Maryland, College Park, MD 20742, USA; (A.H.); (L.L.); (A.K.); (Y.J.)
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Hwang SY, Shin SH, Park SH, Lee MJ, Kim SM, Lee JS, Park JH. Serological Conversion through a Second Exposure to Inactivated Foot-and-Mouth Disease Virus Expressing the JC Epitope on the Viral Surface. Vaccines (Basel) 2023; 11:1487. [PMID: 37766163 PMCID: PMC10537882 DOI: 10.3390/vaccines11091487] [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: 07/27/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Foot-and-mouth disease (FMD) is a fatal contagious viral disease that affects cloven-hoofed animals and causes severe economic damage at the national level. There are seven serotypes of the causative foot-and-mouth disease virus (FMDV), and type O is responsible for serious outbreaks and shows a high incidence. Recently, the Cathay, Southeast Asia (SEA), and ME-SA (Middle East-South Asia) topotypes of type O have been found to frequently occur in Asia. Thus, it is necessary to develop candidate vaccines that afford protection against these three different topotypes. In this study, an experimental FMD vaccine was produced using a recombinant virus (TWN-JC) with the JC epitope (VP1 140-160 sequence of the O/SKR/Jincheon/2014) between amino acid 152 and 153 of VP1 in TWN-R. Immunization with this novel vaccine candidate was found to effectively protect mice against challenge with the three different topotype viruses. Neutralizing antibody titers were considerably higher after a second vaccination. The serological differences between the topotype strains were identified in guinea pigs and swine. In conclusion, a significant serological difference was observed at 56 days post-vaccination between animals that received the TWN-JC vaccine candidate and those that received the positive control virus (TWN-R). The TWN-JC vaccine candidate induced IFNγ and IL-12B.
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Affiliation(s)
- Seong Yun Hwang
- Animal and Plant Quarantine Agency, 177 Hyeoksin 8-ro, Gimcheon 39660, Republic of Korea; (S.Y.H.); (S.H.S.); (S.-H.P.); (M.J.L.); (S.-M.K.)
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea;
| | - Sung Ho Shin
- Animal and Plant Quarantine Agency, 177 Hyeoksin 8-ro, Gimcheon 39660, Republic of Korea; (S.Y.H.); (S.H.S.); (S.-H.P.); (M.J.L.); (S.-M.K.)
| | - Sung-Han Park
- Animal and Plant Quarantine Agency, 177 Hyeoksin 8-ro, Gimcheon 39660, Republic of Korea; (S.Y.H.); (S.H.S.); (S.-H.P.); (M.J.L.); (S.-M.K.)
| | - Min Ja Lee
- Animal and Plant Quarantine Agency, 177 Hyeoksin 8-ro, Gimcheon 39660, Republic of Korea; (S.Y.H.); (S.H.S.); (S.-H.P.); (M.J.L.); (S.-M.K.)
| | - Su-Mi Kim
- Animal and Plant Quarantine Agency, 177 Hyeoksin 8-ro, Gimcheon 39660, Republic of Korea; (S.Y.H.); (S.H.S.); (S.-H.P.); (M.J.L.); (S.-M.K.)
| | - Jong-Soo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea;
| | - Jong-Hyeon Park
- Animal and Plant Quarantine Agency, 177 Hyeoksin 8-ro, Gimcheon 39660, Republic of Korea; (S.Y.H.); (S.H.S.); (S.-H.P.); (M.J.L.); (S.-M.K.)
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Petrova NV, Emelyanova AG, Tarasov SA, Aparin PG, Ledov VA. Efficacy of Raphamin against Pneumococcal Infection: a Preclinical Study. Bull Exp Biol Med 2023; 175:649-652. [PMID: 37861906 DOI: 10.1007/s10517-023-05919-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Indexed: 10/21/2023]
Abstract
The aim of the study was to evaluate the activity of Raphamin in a model of non-lethal pneumococcal infection caused by Streptococcus pneumoniae 3 in BALB/c mice. The drug or placebo was administered intragastrically 3 days prior to infection, 2 h before and 2 h post infection, and then for 3 full days, alone or in combination with antibiotic (amoxicil-lin/clavulanic acid). Raphamin monotherapy significantly decreased bacterial load in the lungs in comparison with placebo (p<0.05) which was comparable to the effect in antibiotic alone or combined with Raphamin. Raphamin prevented reproduction of Streptococcus pneumoniae in the lower respiratory tract and its combination with the antibiotic was safe and did not reduce the efficacy of amoxicillin/clavulanic acid.
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Affiliation(s)
- N V Petrova
- Research Institute of General Pathology and Pathophysiology, Moscow, Russia.
- LLC "MATERIA MEDICA HOLDING", Moscow, Russia.
| | - A G Emelyanova
- Research Institute of General Pathology and Pathophysiology, Moscow, Russia
- LLC "MATERIA MEDICA HOLDING", Moscow, Russia
| | - S A Tarasov
- Research Institute of General Pathology and Pathophysiology, Moscow, Russia
- LLC "MATERIA MEDICA HOLDING", Moscow, Russia
| | - P G Aparin
- LLC "GRITVAK", Moscow, Russia
- National Research Center - Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia
| | - V A Ledov
- LLC "GRITVAK", Moscow, Russia
- National Research Center - Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, Russia
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Silva De Castro I, Granato A, Mariante RM, Lima MA, Leite ACC, Espindola ODM, Pise-Masison CA, Franchini G, Linden R, Echevarria-Lima J. HTLV-1 p12 modulates the levels of prion protein (PrP C) in CD4 + T cells. Front Microbiol 2023; 14:1175679. [PMID: 37637115 PMCID: PMC10449582 DOI: 10.3389/fmicb.2023.1175679] [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: 02/27/2023] [Accepted: 04/03/2023] [Indexed: 08/29/2023] Open
Abstract
Introduction Infection with human T cell lymphotropic virus type 1 (HTLV-1) is endemic in Brazil and is linked with pro-inflammatory conditions including HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP), a chronic neuroinflammatory incapacitating disease that culminates in loss of motor functions. The mechanisms underlying the onset and progression of HAM/TSP are incompletely understood. Previous studies have demonstrated that inflammation and infectious agents can affect the expression of cellular prion protein (PrPC) in immune cells. Methods Here, we investigated whether HTLV-1 infection affected PrPC content in cell lines and primary CD4+cells in vitro using flow cytometry and western blot assays. Results We found that HTLV-1 infection decreased the expression levels of PrPC and HTLV-1 Orf I encoded p12, an endoplasmic reticulum resident protein also known to affect post-transcriptionally cellular proteins such as MHC-class I and the IL-2 receptor. In addition, we observed a reduced percentage of CD4+ T cells from infected individuals expressing PrPC, which was reflected by IFN type II but not IL-17 expression. Discussion These results suggested that PrPC downregulation, linked to both HTLV-1 p12 and IFN-γ expression in CD4+ cells, may play a role in the neuropathogenesis of HTLV-1 infection.
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Affiliation(s)
- Isabela Silva De Castro
- Laboratório de Imunologia Básica e Aplicada, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Animal Models and Retroviral Vaccines Section, Vaccine Branch, National Cancer Institute, Bethesda, MD, United States
| | - Alessandra Granato
- Program in Genetics and Genome Biology, Hospital for Sick Children, Toronto, ON, Canada
| | - Rafael Meyer Mariante
- Laboratório de Neurogenesis, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratório de Biologia Estrutural, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Marco Antonio Lima
- Instituto Nacional de Infectologia Evandro Chagas (INI), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Ana Claudia Celestino Leite
- Instituto Nacional de Infectologia Evandro Chagas (INI), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Otávio de Melo Espindola
- Instituto Nacional de Infectologia Evandro Chagas (INI), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Cynthia A. Pise-Masison
- Animal Models and Retroviral Vaccines Section, Vaccine Branch, National Cancer Institute, Bethesda, MD, United States
| | - Genoveffa Franchini
- Animal Models and Retroviral Vaccines Section, Vaccine Branch, National Cancer Institute, Bethesda, MD, United States
| | - Rafael Linden
- Laboratório de Neurogenesis, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Juliana Echevarria-Lima
- Laboratório de Imunologia Básica e Aplicada, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Moros A, Prenafeta A, Barreiro A, Perozo E, Fernández A, Cañete M, González L, Garriga C, Pradenas E, Marfil S, Blanco J, Cebollada Rica P, Sisteré-Oró M, Meyerhans A, Prat Cabañas T, March R, Ferrer L. Immunogenicity and safety in pigs of PHH-1V, a SARS-CoV-2 RBD fusion heterodimer vaccine candidate. Vaccine 2023; 41:5072-5078. [PMID: 37460353 DOI: 10.1016/j.vaccine.2023.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 04/28/2023] [Accepted: 07/07/2023] [Indexed: 08/07/2023]
Abstract
The continuing high global incidence of COVID-19 and the undervaccinated status of billions of persons strongly motivate the development of a new generation of efficacious vaccines. We have developed an adjuvanted vaccine candidate, PHH-1V, based on a protein comprising the receptor binding domain (RBD) of the Beta variant of SARS-CoV-2 fused in tandem with the equivalent domain of the Alpha variant, with its immunogenicity, safety and efficacy previously demonstrated in mouse models. In the present study, we immunized pigs with different doses of PHH-1V in a prime-and-boost scheme showing PHH-1V to exhibit an excellent safety profile in pigs and to produce a solid RBD-specific humoral response with neutralising antibodies to 7 distinct SARS-CoV-2 variants of concern, with the induction of a significant IFNγ+ T-cell response. We conclude that PHH-1V is safe and elicits a robust immune response to SARS-CoV-2 in pigs, a large animal preclinical model.
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Affiliation(s)
| | | | | | - Eva Perozo
- HIPRA, Avda. La Selva, 135, 17170 Amer (Girona), Spain
| | | | - Manuel Cañete
- HIPRA, Avda. La Selva, 135, 17170 Amer (Girona), Spain
| | - Luis González
- HIPRA, Avda. La Selva, 135, 17170 Amer (Girona), Spain
| | - Carme Garriga
- HIPRA, Avda. La Selva, 135, 17170 Amer (Girona), Spain
| | - Edwards Pradenas
- IrsiCaixa, AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916 Badalona, Spain
| | - Silvia Marfil
- IrsiCaixa, AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916 Badalona, Spain
| | - Julià Blanco
- IrsiCaixa, AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916 Badalona, Spain; University of Vic-Central University of Catalonia (UVic-UCC), 08500 Vic, Catalonia, Spain
| | - Paula Cebollada Rica
- Infection Biology Laboratory, Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain
| | - Marta Sisteré-Oró
- Infection Biology Laboratory, Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain
| | - Andreas Meyerhans
- Infection Biology Laboratory, Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain; ICREA (Catalan Institution for Research and Advanced Studies), Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | | | - Ricard March
- HIPRA, Avda. La Selva, 135, 17170 Amer (Girona), Spain
| | - Laura Ferrer
- HIPRA, Avda. La Selva, 135, 17170 Amer (Girona), Spain
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Hansen AS, Jensen LS, Gammelgaard KR, Ryttersgaard KG, Krapp C, Just J, Jønsson KL, Jensen PB, Boesen T, Johansen M, Etzerodt A, Deleuran BW, Jakobsen MR. T-cell derived extracellular vesicles prime macrophages for improved STING based cancer immunotherapy. J Extracell Vesicles 2023; 12:e12350. [PMID: 37525396 PMCID: PMC10390661 DOI: 10.1002/jev2.12350] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/12/2023] [Indexed: 08/02/2023] Open
Abstract
A key phenomenon in cancer is the establishment of a highly immunosuppressive tumour microenvironment (TME). Despite advances in immunotherapy, where the purpose is to induce tumour recognition and hence hereof tumour eradication, the majority of patients applicable for such treatment still fail to respond. It has been suggested that high immunological activity in the tumour is essential for achieving effective response to immunotherapy, which therefore have led to exploration of strategies that triggers inflammatory pathways. Here activation of the stimulator of interferon genes (STING) signalling pathway has been considered an attractive target, as it is a potent trigger of pro-inflammatory cytokines and types I and III interferons. However, immunotherapy combined with targeted STING agonists has not yielded sustained clinical remission in humans. This suggests a need for exploring novel adjuvants to improve the innate immunological efficacy. Here, we demonstrate that extracellular vesicles (EVs), derived from activated CD4+ T cells (T-EVs), sensitizes macrophages to elevate STING activation, mediated by IFNγ carried on the T-EVs. Our work support that T-EVs can disrupt the immune suppressive environment in the tumour by reprogramming macrophages to a pro-inflammatory phenotype, and priming them for a robust immune response towards STING activation.
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Affiliation(s)
- Aida S. Hansen
- Department of BiomedicineAarhus University, HealthAarhus MidtjyllandDenmark
| | - Lea S. Jensen
- Department of BiomedicineAarhus University, HealthAarhus MidtjyllandDenmark
| | | | | | - Christian Krapp
- Department of BiomedicineAarhus University, HealthAarhus MidtjyllandDenmark
| | - Jesper Just
- Department of Clinical MedicineCenter of Functionally Integrative NeuroscienceAarhus UniversityAarhus MidtjyllandDenmark
| | - Kasper L. Jønsson
- Department of BiomedicineAarhus University, HealthAarhus MidtjyllandDenmark
| | - Pia B. Jensen
- Interdiciplinary Nanoscience Center – iNANOAarhus UniversityAarhus MidtjyllandDenmark
| | - Thomas Boesen
- Interdiciplinary Nanoscience Center – iNANOAarhus UniversityAarhus MidtjyllandDenmark
| | - Mogens Johansen
- Department of Forensic MedicineAarhus UniversityAarhus MidtjyllandDenmark
| | - Anders Etzerodt
- Department of BiomedicineAarhus University, HealthAarhus MidtjyllandDenmark
| | - Bent W. Deleuran
- Department of BiomedicineAarhus University, HealthAarhus MidtjyllandDenmark
| | - Martin R. Jakobsen
- Department of BiomedicineAarhus University, HealthAarhus MidtjyllandDenmark
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Ndoricyimpaye EL, Van Snick J, Robert R, Bikorimana E, Majyambere O, Mukantwari E, Nshimiyimana T, Mbonigaba V, Coutelier JP, Rujeni N. Cytokine Kinetics during Progression of COVID-19 in Rwanda Patients: Could IL-9/ IFNγ Ratio Predict Disease Severity? Int J Mol Sci 2023; 24:12272. [PMID: 37569646 PMCID: PMC10418469 DOI: 10.3390/ijms241512272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 08/13/2023] Open
Abstract
For effective treatments and preventive measures against severe COVID-19, it is essential to determine early markers of disease severity in different populations. We analysed the cytokine kinetics of 129 COVID-19 patients with mild symptoms, 68 severe cases, and 20 healthy controls for the first time in Rwanda. Pro-inflammatory (IFNγ, IL-6, TNFα), Treg (IL-10, TGFβ1, TGFβ3), Th9 (IL-9), Th17 (IL-17), and Th2 (IL-4, IL-13) cytokines, total IgM and IgG, as well as gene expressions of FoxP3, STAT5+, IFNγ-R1, and ROR alpha+, were measured at day 1, day 7, day 14, day 21, and day 28 post-infection. Severe cases showed a significantly stronger increase than mild patients in levels of all cytokines (except IL-9) and all gene expression on day 1 of infection. Some cytokine levels dropped to levels comparable to mild cases at later time points. Further analysis identified IFNγ as a marker of severity throughout the disease course, while TGFβ1, IL-6, and IL-17 were markers of severity only at an early phase. Importantly, this study revealed a striking low IL-9 level and high IFNγ/IL-9 ratio in the plasma of patients who later died compared to mild and severe cases who recovered, suggesting that this could be an important biomarker for predicting the severity of COVID-19 and post-COVID-19 syndrome.
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Affiliation(s)
- Ella Larissa Ndoricyimpaye
- Department of Biomedical Laboratory Sciences, School of Health Sciences, College of Medicine and Health Sciences, University of Rwanda, Kigali P.O. Box 3248, Rwanda; (E.L.N.); (R.R.); (O.M.); (T.N.); (J.P.C.)
- de Duve Institute, Université Catholique de Louvain, 1348 Brussels, Belgium
| | - Jacques Van Snick
- Ludwig Institute for Cancer Research, Universite Catholique de Louvain, 1348 Brussels, Belgium;
| | - Rutayisire Robert
- Department of Biomedical Laboratory Sciences, School of Health Sciences, College of Medicine and Health Sciences, University of Rwanda, Kigali P.O. Box 3248, Rwanda; (E.L.N.); (R.R.); (O.M.); (T.N.); (J.P.C.)
- National Reference Laboratory, Rwanda Biomedical Center, Kigali P.O. Box 4285, Rwanda; (E.M.); (V.M.)
| | - Emmanuel Bikorimana
- Department of General Nursing, School of Nursing, College of Medicine and Health Science, University of Rwanda, Kigali P.O. Box 3248, Rwanda;
| | - Onesphore Majyambere
- Department of Biomedical Laboratory Sciences, School of Health Sciences, College of Medicine and Health Sciences, University of Rwanda, Kigali P.O. Box 3248, Rwanda; (E.L.N.); (R.R.); (O.M.); (T.N.); (J.P.C.)
| | - Enatha Mukantwari
- National Reference Laboratory, Rwanda Biomedical Center, Kigali P.O. Box 4285, Rwanda; (E.M.); (V.M.)
| | - Thaddée Nshimiyimana
- Department of Biomedical Laboratory Sciences, School of Health Sciences, College of Medicine and Health Sciences, University of Rwanda, Kigali P.O. Box 3248, Rwanda; (E.L.N.); (R.R.); (O.M.); (T.N.); (J.P.C.)
| | - Valens Mbonigaba
- National Reference Laboratory, Rwanda Biomedical Center, Kigali P.O. Box 4285, Rwanda; (E.M.); (V.M.)
| | - Jean Paul Coutelier
- Department of Biomedical Laboratory Sciences, School of Health Sciences, College of Medicine and Health Sciences, University of Rwanda, Kigali P.O. Box 3248, Rwanda; (E.L.N.); (R.R.); (O.M.); (T.N.); (J.P.C.)
- de Duve Institute, Université Catholique de Louvain, 1348 Brussels, Belgium
| | - Nadine Rujeni
- Department of Biomedical Laboratory Sciences, School of Health Sciences, College of Medicine and Health Sciences, University of Rwanda, Kigali P.O. Box 3248, Rwanda; (E.L.N.); (R.R.); (O.M.); (T.N.); (J.P.C.)
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Ueki Y, Takimoto-Ito R, Saito MK, Tanizaki H, Kambe N. Tofacitinib, a suppressor of NOD2 expression, is a potential treatment for Blau syndrome. Front Immunol 2023; 14:1211240. [PMID: 37415984 PMCID: PMC10321295 DOI: 10.3389/fimmu.2023.1211240] [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] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 06/06/2023] [Indexed: 07/08/2023] Open
Abstract
Introduction Blau syndrome is a rare autosomal dominant autoinflammatory granulomatous disease caused by a mutation in the NOD2 gene. It is characterized by a clinical trial of granulomatous dermatitis, arthritis, and uveitis. Tofacitinib is a pan Janus kinase (JAK) inhibitor used for treatment of Blau syndrome and idiopathic sarcoidosis. Here, we evaluated its effect on inflammatory pathways associated with Blau syndrome. The effect of tofacitinib on downstream pathways regulated by mutant NOD2 was analyzed using luciferase assays with overexpression of NOD2 mutants. Methods The effect of tofacitinib on the upstream pathway for the induction of NOD2 expression and proinflammatory cytokine production was assessed using monocytic cell lines differentiated from Blau syndrome patient-derived induced pluripotent stem cells. Results Tofacitinib did not suppress the increased spontaneous transcriptional activity of NF-κB by mutant NOD2. In addition, mutant NOD2 was not involved in the transcription of ISRE and GAS, which are activated by type 1 and type 2 interferons (IFN), respectively. On the other hand, IFNγ induced the expression of NOD2, which led to the production of inflammatory cytokines by an autoinflammatory mechanism only in cells with mutant NOD2. Discussion Tofacitinib suppressed the induction of NOD2 by IFNγ, thereby inhibiting the production of pro-inflammatory cytokines. Thus, tofacitinib showed anti-inflammatory effects through suppression of NOD2 expression. The JAK inhibitor tofacitinib is a potential therapeutic agent for Blau syndrome because it suppresses the autoinflammation seen in Blau syndrome by inhibiting the expression of NOD2.
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Affiliation(s)
- Yoko Ueki
- Department of Dermatology, Kansai Medical University, Hirakata, Japan
| | - Riko Takimoto-Ito
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Megumu K. Saito
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Hideaki Tanizaki
- Department of Dermatology, Kansai Medical University, Hirakata, Japan
| | - Naotomo Kambe
- Department of Dermatology, Kansai Medical University, Hirakata, Japan
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Beziaud L, Young CM, Alonso AM, Norkin M, Minafra AR, Huelsken J. IFNγ-induced stem-like state of cancer cells as a driver of metastatic progression following immunotherapy. Cell Stem Cell 2023; 30:818-831.e6. [PMID: 37267916 DOI: 10.1016/j.stem.2023.05.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [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: 11/16/2022] [Revised: 03/29/2023] [Accepted: 05/08/2023] [Indexed: 06/04/2023]
Abstract
Despite the remarkable success of immune checkpoint blockade (ICB) therapy, most cancer patients still do not respond. We now find that immunotherapy can induce stem-like properties in tumors. Using mouse models of breast cancer, we observe that cancer stem cells (CSCs) show not only enhanced resistance to T cell cytotoxicity, but that interferon gamma (IFNγ) produced by activated T cells directly converts non-CSCs to CSCs. IFNγ enhances several CSC phenotypes, such as resistance to chemo- and radiotherapy and metastasis formation. We identified the branched-chain amino acid aminotransaminase 1 (BCAT1) as a downstream mediator of IFNγ-induced CSC plasticity. Targeting BCAT1 in vivo improved cancer vaccination and ICB therapy by preventing IFNγ-induced metastasis formation. Breast cancer patients treated with ICB exhibited a similar increase in CSC markers expression indicating comparable responses to immune activation in humans. Collectively, we discover an unexpected, pro-tumoral role for IFNγ that may contribute to cancer immunotherapy failure.
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Affiliation(s)
- Laurent Beziaud
- Ecole Polytechnique Fédérale de Lausanne (EPFL), ISREC (Swiss Institute for Experimental Cancer Research), 1015 Lausanne, Switzerland; Agora Translational Cancer Research Center, 1005 Lausanne, Switzerland
| | - C Megan Young
- Ecole Polytechnique Fédérale de Lausanne (EPFL), ISREC (Swiss Institute for Experimental Cancer Research), 1015 Lausanne, Switzerland; Agora Translational Cancer Research Center, 1005 Lausanne, Switzerland
| | - Angela Madurga Alonso
- Ecole Polytechnique Fédérale de Lausanne (EPFL), ISREC (Swiss Institute for Experimental Cancer Research), 1015 Lausanne, Switzerland; Agora Translational Cancer Research Center, 1005 Lausanne, Switzerland
| | - Maxim Norkin
- Ecole Polytechnique Fédérale de Lausanne (EPFL), ISREC (Swiss Institute for Experimental Cancer Research), 1015 Lausanne, Switzerland; Agora Translational Cancer Research Center, 1005 Lausanne, Switzerland
| | - Anna Rita Minafra
- Ecole Polytechnique Fédérale de Lausanne (EPFL), ISREC (Swiss Institute for Experimental Cancer Research), 1015 Lausanne, Switzerland
| | - Joerg Huelsken
- Ecole Polytechnique Fédérale de Lausanne (EPFL), ISREC (Swiss Institute for Experimental Cancer Research), 1015 Lausanne, Switzerland; Agora Translational Cancer Research Center, 1005 Lausanne, Switzerland.
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Blangero F, Robert M, Andraud T, Dumontet C, Vidal H, Eljaafari A. Contribution of Mesenchymal Stem Cells from Obese Adipose Tissue to PD-L1 Over-Expression and Breast Cancer Progression through Pathogenic Th17 Cell Activation. Cancers (Basel) 2023; 15:cancers15112963. [PMID: 37296927 DOI: 10.3390/cancers15112963] [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: 03/30/2023] [Revised: 05/09/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND Obesity is a well-known risk factor for cancer. We have previously reported the role of adipose-tissue-derived mesenchymal stem cells from obese individuals (ob-ASC) in the promotion of pathogenic Th17 cells and immune check point (ICP) upregulation. Thus, we postulated herein that this mechanism could contribute to breast cancer (BC) aggressiveness. METHODS Conditioning medium (CM) from mitogen-activated ob-ASC and immune cell co-cultures were added to two human breast cancer cell line (BCCL) cultures. Expressions of pro-inflammatory cytokines, angiogenesis markers, metalloproteinases, and PD-L1 (a major ICP) were measured at the mRNA and/or protein levels. BCCL migration was explored in wound healing assays. Anti-cytokine neutralizing antibodies (Ab) were added to co-cultures. RESULTS CM from ob-ASC/MNC co-cultures increased IL-1β, IL-8, IL-6, VEGF-A, MMP-9, and PD-L1 expressions in both BCCLs and accelerated their migration. The use of Abs demonstrated differential effects for IL-17A and IFNγ on BCCL pro-inflammatory cytokine over-expression or PD-L1 upregulation, respectively, but potentiating effects on BCCL migration. Finally, co-cultures with ob-ASC, but not lean ASC, enhanced PD-L1 expression. CONCLUSIONS Our results demonstrate increased inflammation and ICP markers and accelerated BCCL migration following the activation of pathogenic Th17 cells by ob-ASC, which could represent a new mechanism linking obesity with BC progression.
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Affiliation(s)
- Ferdinand Blangero
- CarMeN Laboratory, INSERM U1060, INRAE U1397, University Claude Bernard Lyon 1, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, 69310 Pïerre Bénite, France
| | - Maud Robert
- CarMeN Laboratory, INSERM U1060, INRAE U1397, University Claude Bernard Lyon 1, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, 69310 Pïerre Bénite, France
- Bariatric Surgery Department, Edouard Herriot Hospital, 69003 Lyon, France
| | - Thomas Andraud
- CarMeN Laboratory, INSERM U1060, INRAE U1397, University Claude Bernard Lyon 1, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, 69310 Pïerre Bénite, France
| | - Charles Dumontet
- Center of Research in Cancerology of Lyon, INSERM U1052, CNRS 5286, University Claude Bernard Lyon 1, Centre Léon Berard, 69008 Lyon, France
| | - Hubert Vidal
- CarMeN Laboratory, INSERM U1060, INRAE U1397, University Claude Bernard Lyon 1, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, 69310 Pïerre Bénite, France
| | - Assia Eljaafari
- CarMeN Laboratory, INSERM U1060, INRAE U1397, University Claude Bernard Lyon 1, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, 69310 Pïerre Bénite, France
- Research Department, Hospices Civils de Lyon, 69002 Lyon, France
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Németh Z, Debreczeni ML, Kajdácsi E, Dobó J, Gál P, Cervenak L. Cooperation of Complement MASP-1 with Other Proinflammatory Factors to Enhance the Activation of Endothelial Cells. Int J Mol Sci 2023; 24:ijms24119181. [PMID: 37298134 DOI: 10.3390/ijms24119181] [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: 04/21/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 06/12/2023] Open
Abstract
Endothelial cells play an important role in sensing danger signals and regulating inflammation. Several factors are capable of inducing a proinflammatory response (e.g., LPS, histamine, IFNγ, and bradykinin), and these factors act simultaneously during the natural course of the inflammatory reaction. We have previously shown that the complement protein mannan-binding lectin-associated serine protease-1 (MASP-1) also induces a proinflammatory activation of the endothelial cells. Our aim was to investigate the possible cooperation between MASP-1 and other proinflammatory mediators when they are present in low doses. We used HUVECs and measured Ca2+ mobilization, IL-8, E-selectin, VCAM-1 expression, endothelial permeability, and mRNA levels of specific receptors. LPS pretreatment increased the expression of PAR2, a MASP-1 receptor, and furthermore, MASP-1 and LPS enhanced each other's effects in regulating IL-8, E-selectin, Ca2+ mobilization, and changes in permeability in a variety of ways. Cotreatment of MASP-1 and IFNγ increased the IL-8 expression of HUVECs. MASP-1 induced bradykinin and histamine receptor expression, and consequently, increased Ca2+ mobilization was found. Pretreatment with IFNγ enhanced MASP-1-induced Ca2+ mobilization. Our findings highlight that well-known proinflammatory mediators and MASP-1, even at low effective doses, can strongly synergize to enhance the inflammatory response of endothelial cells.
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Affiliation(s)
- Zsuzsanna Németh
- Department of Internal Medicine and Haematology, Semmelweis University, 1085 Budapest, Hungary
| | - Márta L Debreczeni
- Department of Internal Medicine and Haematology, Semmelweis University, 1085 Budapest, Hungary
| | - Erika Kajdácsi
- Department of Internal Medicine and Haematology, Semmelweis University, 1085 Budapest, Hungary
- Research Group for Immunology and Haematology, Semmelweis University-Eötvös Loránd Research Network (Office for Supported Research Groups), 1052 Budapest, Hungary
| | - József Dobó
- Institute of Enzymology, Research Centre for Natural Sciences, 1117 Budapest, Hungary
| | - Péter Gál
- Institute of Enzymology, Research Centre for Natural Sciences, 1117 Budapest, Hungary
| | - László Cervenak
- Department of Internal Medicine and Haematology, Semmelweis University, 1085 Budapest, Hungary
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Kajihara N, Tanaka Y, Takeuchi R, Kobayashi T, Tanji M, Ataka T, Nakano S, Yamada T, Takaoka A, Hasegawa Y, Seino KI, Wada H. Augmented interferon regulatory factor 7 axis in whole tumor cell vaccines prevents tumor recurrence by inducing interferon gamma-secreting B cells. Oncoimmunology 2023; 12:2213132. [PMID: 37235066 PMCID: PMC10208210 DOI: 10.1080/2162402x.2023.2213132] [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: 02/04/2023] [Revised: 04/17/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Among cancer immunotherapy, which has received great attention in recent years, cancer vaccines can potentially prevent recurrent tumors by using the exquisite power and specificity of the immune system. Specifically, whole tumor cell vaccines (WTCVs) based on surgically resected tumors have been considered to elicit robust anti-tumor immune responses by exposing various tumor-associated antigens to host immunity. However, most tumors have little immunogenicity because of immunoediting by continuous interactions with host immunity; thus, preparing WTCVs based on patient-derived non-modified tumors cannot prevent tumor onset. Hence, the immunogenicity of tumor cells must be improved for effective WTCVs. In this study, we indicate the importance of the interferon regulatory factor 7 (Irf7) axis, including Irf7 and its downstream factors, within tumor cells in regulating immunogenicity. Indeed, WTCVs that augmented the Irf7 axis have exerted remarkable recurrence-preventive effects when vaccinated after tumor inactivation by radiation. Most notably, vaccination with murine colon cancer cells that enhanced the Irf7 axis prevented the development of challenged tumors in all mice and resulted in a 100% survival rate during the observation period. Furthermore, the mechanism leading to vaccine effectiveness was mediated by interferon-gamma-producing B cells. This study provides novel insights into how to enhance tumor immunogenicity and use WTCVs as recurrence prophylaxis.
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Affiliation(s)
- Nabeel Kajihara
- Division of Immunobiology, Graduate School of Medicine, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshino Tanaka
- Division of Immunobiology, Graduate School of Medicine, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Riko Takeuchi
- Division of Immunobiology, Graduate School of Medicine, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Takuto Kobayashi
- Division of Immunobiology, Graduate School of Medicine, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Masafumi Tanji
- Division of Immunobiology, Graduate School of Medicine, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Tsukasa Ataka
- Division of Immunobiology, Graduate School of Medicine, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Shiho Nakano
- Division of Immunobiology, Graduate School of Medicine, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Taisho Yamada
- Division of Signaling in Cancer and Immunology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Akinori Takaoka
- Division of Signaling in Cancer and Immunology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshinori Hasegawa
- Laboratory of Gene Sequencing Analysis, Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Japan
| | - Ken-Ichiro Seino
- Division of Immunobiology, Graduate School of Medicine, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Haruka Wada
- Division of Immunobiology, Graduate School of Medicine, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
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Won HY, Liman N, Park JY, Park JH. Cytokine receptor γc effectuates the generation of proinflammatory innate CD8 T cells by non-classical MHC-I molecules. J Autoimmun 2023; 138:103059. [PMID: 37216869 DOI: 10.1016/j.jaut.2023.103059] [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: 03/02/2023] [Revised: 05/02/2023] [Accepted: 05/05/2023] [Indexed: 05/24/2023]
Abstract
Innate CD8 T cells correspond to a population of terminally differentiated effector T cells that phenotypically appear as antigen-experienced memory cells and functionally resemble proinflammatory CD8 T cells, expressing copious amounts of IFNγ. Innate CD8 T cells, however, are distinct from conventional effector-memory CD8 T cells as they acquire functional maturity during their generation in the thymus. Understanding the molecular mechanisms that drive their thymic development and differentiation is an intensely studied subject in T cell immunity, and here we identified the cytokine receptor γc as a critical mediator of innate CD8 T cell generation that promotes their selection even in the absence of classical MHC-I molecules. Consequently, overexpression of γc resulted in a dramatic increase of innate CD8 T cells in KbDb-deficient mice. We mapped its underlying mechanism to the expansion of IL-4-producing invariant NKT cells, so that it is the increased availability of intrathymic IL-4 which augments the selection of innate CD8 T cells. Collectively, these results unravel the selection of innate CD8 T cells being mediated by non-classical MHC-I molecules and being modulated by the abundance of the γc cytokine, IL-4.
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Affiliation(s)
- Hee Yeun Won
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892, USA
| | - Nurcin Liman
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892, USA
| | - Joo-Young Park
- Department of Oral and Maxillofacial Surgery, Seoul National University School of Dentistry, Seoul National University Dental Hospital, 101 Daehakno, Jongno-gu, Seoul, 03080, South Korea.
| | - Jung-Hyun Park
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892, USA.
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Crespo FI, Mayora SJ, De Sanctis JB, Martínez WY, Zabaleta-Lanz ME, Toro FI, Deibis LH, García AH. SARS-CoV-2 Infection in Venezuelan Pediatric Patients-A Single Center Prospective Observational Study. Biomedicines 2023; 11:biomedicines11051409. [PMID: 37239080 DOI: 10.3390/biomedicines11051409] [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: 04/20/2023] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Several studies suggest that children infected with SARS-CoV-2 have fewer clinical manifestations than adults; when they develop symptoms, they rarely progress to severe disease. Different immunological theories have been proposed to explain this phenomenon. In September 2020, 16% of the active COVID-19 cases in Venezuela were children under 19 years. We conducted a cross-sectional study of pediatric patients' immune response and clinical conditions with SARS-CoV-2 infection. The patients were admitted to the COVID-19 area of the emergency department of Dr José Manuel de los Ríos Children's Hospital (2021-2022). The lymphocyte subpopulations were analyzed by flow cytometry, and IFNγ, IL-6, and IL-10 serum concentrations were quantified using commercial ELISA assays. The analysis was conducted on 72 patients aged one month to 18 years. The majority, 52.8%, had mild disease, and 30.6% of the patients were diagnosed with MIS-C. The main symptoms reported were fever, cough, and diarrhea. A correlation was found between IL-10 and IL-6 concentrations and age group, lymphocyte subpopulations and nutritional status and steroid use, and IL-6 concentrations and clinical severity. The results suggest a different immune response depending on age and nutritional status that should be considered for treating pediatric COVID-19 patients.
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Affiliation(s)
- Francis Isamarg Crespo
- Institute of Immunology, Faculty of Medicine, Central University of Venezuela, Caracas 1040, Venezuela
| | - Soriuska José Mayora
- Institute of Immunology, Faculty of Medicine, Central University of Venezuela, Caracas 1040, Venezuela
| | - Juan Bautista De Sanctis
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
- Czech Advanced Technology and Research Institute, Palacky University, 779 00 Olomouc, Czech Republic
| | - Wendy Yaqueline Martínez
- Institute of Immunology, Faculty of Medicine, Central University of Venezuela, Caracas 1040, Venezuela
| | | | - Félix Isidro Toro
- Institute of Immunology, Faculty of Medicine, Central University of Venezuela, Caracas 1040, Venezuela
| | - Leopoldo Humberto Deibis
- Institute of Immunology, Faculty of Medicine, Central University of Venezuela, Caracas 1040, Venezuela
| | - Alexis Hipólito García
- Institute of Immunology, Faculty of Medicine, Central University of Venezuela, Caracas 1040, Venezuela
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Gaire B, Padmanabhan S, Zou Y, Uddin MM, Reddy SU, Vancurova I. IFNγ induces Bcl3 expression by JAK1/STAT1/p65 signaling, resulting in increased IL-8 expression in ovarian cancer cells. FEBS Open Bio 2023. [PMID: 37151134 PMCID: PMC10392061 DOI: 10.1002/2211-5463.13624] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 04/12/2023] [Accepted: 04/28/2023] [Indexed: 05/09/2023] Open
Abstract
We have recently shown that IFNγ, produced during cancer therapy, induces expression of the Bcl3 proto-oncogene in ovarian cancer (OC) cells, resulting in their increased proliferation, migration, and invasion, but the mechanisms are unknown. Here, we demonstrate that the IFNγ-induced Bcl3 expression is dependent on JAK1 and STAT1 signaling, and on p65 NFκB. Furthermore, the IFNγ-induced Bcl3 expression is associated with an increased occupancy of Ser-727 phosphorylated STAT1 and acetylated histone H3 at the Bcl3 promoter. Our data indicate that Bcl3 promotes expression of the pro-inflammatory chemokine interleukin-8 (IL-8) in OC cells. These findings identify Bcl3 as a novel target of IFNγ/JAK1/STAT1 signaling and suggest that targeting the JAK1/STAT1 pathway may suppress IFNγ-induced Bcl3 expression in ovarian cancer.
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Affiliation(s)
- Bijaya Gaire
- Department of Biological Sciences, St. John's University, New York, 11439, USA
| | - Sveta Padmanabhan
- Department of Biological Sciences, St. John's University, New York, 11439, USA
| | - Yue Zou
- Department of Biological Sciences, St. John's University, New York, 11439, USA
| | - Mohammad M Uddin
- Department of Biological Sciences, St. John's University, New York, 11439, USA
| | - Suprataptha U Reddy
- Department of Biological Sciences, St. John's University, New York, 11439, USA
| | - Ivana Vancurova
- Department of Biological Sciences, St. John's University, New York, 11439, USA
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Xanthopoulou ET, Kakouratos C, Nanos C, Gkegka AG, Kalaitzis C, Giatromanolaki A, Koukourakis MI. HIF1α-dependent and independent pathways regulate the expression of PD-L1 in prostate cancer. Med Oncol 2023; 40:151. [PMID: 37067635 PMCID: PMC10110727 DOI: 10.1007/s12032-023-02017-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/29/2023] [Indexed: 04/18/2023]
Abstract
PD-L1/PD-1 pathway is a major pathway exploited by human cancer types, which is a target for current immunotherapy. We investigated tumor microenvironmental factors involved in PD-L1 induction in prostate cancer (PC). We studied the expression of PD-L1 in a series of 66 PCs, in parallel with the expression of hypoxia- and acidity-related immunohistochemical markers (Hypoxia-inducible factor HIF1α, and lactate dehydrogenase LDHA) and tumor-infiltrating lymphocyte TIL density. Experiments with three PC cell lines, the 22Rv1, DU145, and PC3 were conducted focusing on the inducibility of PD-L1 by hypoxia, acidity, lymphocyte interactions, and radiation. In tissues, PD-L1 expression by cancer cells was directly related to PD-L1 expression by TILs and macrophages (p < 0.05), and the overexpression of HIF1α and LDH5 (p < 0.05). TIL density was inversely related to ΗΙF1α (p = 0.02). Exposure of PC cell lines to hypoxia strongly induced PD-L1 and protein and mRNA levels, directly controlled by HIF1α function (p < 0.001). Irradiation with 20 Gy had no apparent effect on PD-L1 expression. Culturing PC cell lines with culture medium (CM) from PBMCs strongly induced PD-L1 at protein and mRNA levels, independently from HIF1α, which was also confirmed when cells were incubated with Interferon-γ (p < 0.001). It is concluded that the combination of anti-PD-L1/PD-1 immunotherapy with hypoxia/HIF-targeting may be important in the treatment of specific subgroups of PC patients.
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Affiliation(s)
- Erasmia T Xanthopoulou
- Department of Radiotherapy/Oncology, Democritus University of Thrace, 68100, Alexandroupolis, Greece
| | - Christos Kakouratos
- Department of Radiotherapy/Oncology, Democritus University of Thrace, 68100, Alexandroupolis, Greece
| | - Christos Nanos
- Department of Radiotherapy/Oncology, Democritus University of Thrace, 68100, Alexandroupolis, Greece
| | - Anastasia G Gkegka
- Department of Pathology, Democritus University of Thrace, 68100, Alexandroupolis, Greece
| | - Christos Kalaitzis
- Department of Urology, Democritus University of Thrace, 68100, Alexandroupolis, Greece
| | | | - Michael I Koukourakis
- Department of Radiotherapy/Oncology, Democritus University of Thrace, 68100, Alexandroupolis, Greece.
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Gutierrez E, Bigelow M, LaCroix C, Beech J, Kirby P, Markowitz L, Shifrin M, Naill M, Braun A, O'Neil S, Cuillerot JM, Cheung A, Grinberg A, Wagtmann N. An optimized IL-12-Fc expands its therapeutic window, achieving strong activity against mouse tumors at tolerable drug doses. Med 2023; 4:326-340.e5. [PMID: 37059099 DOI: 10.1016/j.medj.2023.03.007] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/08/2022] [Accepted: 03/21/2023] [Indexed: 04/16/2023]
Abstract
BACKGROUND Interleukin-12 (IL-12) has emerged as one of the most potent cytokines for tumor immunotherapy due to its ability to induce interferon γ (IFNγ) and polarize Th1 responses. Clinical use of IL-12 has been limited by a short half-life and narrow therapeutic index. METHODS We generated a monovalent, half-life-extended IL-12-Fc fusion protein, mDF6006, engineered to retain the high potency of native IL-12 while significantly expanding its therapeutic window. In vitro and in vivo activity of mDF6006 was tested against murine tumors. To translate our findings, we developed a fully human version of IL-12-Fc, designated DF6002, which we characterized in vitro on human cells and in vivo in cynomolgus monkeys in preparation for clinical trials. FINDINGS The extended half-life of mDF6006 modified the pharmacodynamic profile of IL-12 to one that was better tolerated systemically while vastly amplifying its efficacy. Mechanistically, mDF6006 led to greater and more sustained IFNγ production than recombinant IL-12 without inducing high, toxic peak serum concentrations of IFNγ. We showed that mDF6006's expanded therapeutic window allowed for potent anti-tumor activity as single agent against large immune checkpoint blockade-resistant tumors. Furthermore, the favorable benefit-risk profile of mDF6006 enabled effective combination with PD-1 blockade. Fully human DF6002, similarly, demonstrated an extended half-life and a protracted IFNγ profile in non-human primates. CONCLUSION An optimized IL-12-Fc fusion protein increased the therapeutic window of IL-12, enhancing anti-tumor activity without concomitantly increasing toxicity. FUNDING This research was funded by Dragonfly Therapeutics.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Ann Cheung
- Dragonfly Therapeutics, Waltham, MA 02451, USA.
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