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Bhatti DL, Jin J, Cheng J, McCabe K, Lee KW, Berdasco C, Jeong YY, Sinha SC, Kim Y. Ahnak in the prefrontal cortex mediates behavioral correlates of stress resilience and rapid antidepressant action in mice. Front Mol Neurosci 2024; 17:1350716. [PMID: 38828281 PMCID: PMC11140847 DOI: 10.3389/fnmol.2024.1350716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 04/12/2024] [Indexed: 06/05/2024] Open
Abstract
The prefrontal cortex (PFC) is a key neural node mediating behavioral responses to stress and the actions of ketamine, a fast-acting antidepressant. The molecular mechanisms underlying these processes, however, are not fully understood. Our recent study revealed a pivotal role of hippocampal Ahnak as a regulator of cellular and behavioral adaptations to chronic stress. However, despite its significant expression in the PFC, the contribution of cortical Ahnak to behavioral responses to stress and antidepressants remains unknown. Here, using a mouse model for chronic social stress, we find that Ahnak expression in the PFC is significantly increased in stress-resilient mice and positively correlated with social interaction after stress exposure. Conditional deletion of Ahnak in the PFC or forebrain glutamatergic neurons facilitates stress susceptibility, suggesting that Ahnak is required for behavioral resilience. Further supporting this notion, Ahnak expression in the PFC is increased after the administration of ketamine or its metabolite (2R, 6R)-hydroxynorketamine (HNK). Moreover, Ahnak deletion in forebrain glutamatergic neurons blocks the restorative behavioral effects of ketamine or HNK in stress-susceptible mice. This forebrain excitatory neuron-specific Ahnak deletion reduces the frequency of mini excitatory postsynaptic currents in layer II/III pyramidal neurons, suggesting that Ahnak may induce its behavioral effects via modulation of glutamatergic transmission in the PFC. Altogether, these data suggest that Ahnak in glutamatergic PFC neurons may be critical for behavioral resilience and antidepressant actions of ketamine or HNK in chronic social stress-exposed mice.
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Affiliation(s)
- Dionnet L. Bhatti
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
- Program in Neuroscience, Harvard Medical School, Boston, MA, United States
| | - Junghee Jin
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
| | - Jia Cheng
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
| | - Kathryn McCabe
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
| | - Ko-Woon Lee
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
| | - Clara Berdasco
- Department of Neurosurgery, Robert Wood Johnson Medical School, Rutgers University, Piscataway, NJ, United States
| | - Yu Young Jeong
- Department of Neurosurgery, Robert Wood Johnson Medical School, Rutgers University, Piscataway, NJ, United States
| | - Subhash C. Sinha
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
- Weill Cornell Medicine Helen & Robert Appel Alzheimer’s Disease Research Institute, New York, NY, United States
| | - Yong Kim
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
- Department of Neurosurgery, Robert Wood Johnson Medical School, Rutgers University, Piscataway, NJ, United States
- Brain Health Institute, Rutgers University, Piscataway, NJ, United States
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Sharma A, Jasrotia S, Kumar A. Effects of Chemotherapy on the Immune System: Implications for Cancer Treatment and Patient Outcomes. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:2551-2566. [PMID: 37906273 DOI: 10.1007/s00210-023-02781-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 10/11/2023] [Indexed: 11/02/2023]
Abstract
Chemotherapy is a cornerstone of cancer treatment, but it can also induce immune suppression, which can have significant implications for patient outcomes. This review paper aims to give a general overview of how chemotherapy affects the immune system and how it affects cancer treatment. Chemotherapy can directly affect immune cells, leading to cytotoxic effects, cell differentiation and function alterations, and cell communication and signaling pathways disruptions. Such immune suppression can weaken the anti-tumor immune response and increase the risk of immune-related toxicities. Understanding the mechanisms of chemotherapy-induced immune suppression is crucial for optimizing treatment strategies. Strategies to mitigate immune suppression include immunomodulatory agents as adjuvants to chemotherapy, combination therapies to enhance immune function, and supportive care measures of the immune system. Additionally, identifying potential biomarkers to predict immune suppression and guide treatment decisions holds promise for personalized cancer medicine. Future directions in this field involve further elucidating underlying mechanisms, exploring novel combination therapies, and developing targeted interventions to minimize immune suppression. By understanding and addressing chemotherapy-induced immune suppression, we can optimize cancer treatment strategies, enhance the anti-tumor immune response, and improve patient outcomes.
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Affiliation(s)
- Anirudh Sharma
- Department of Biosciences (UIBT), Chandigarh University, Mohali, Punjab, 140413, India
| | - Shivam Jasrotia
- Department of Biosciences (UIBT), Chandigarh University, Mohali, Punjab, 140413, India.
| | - Ajay Kumar
- University Center for Research & Development (UCRD), Chandigarh University, Gharuan, Mohali, Punjab, 140413, India
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Tran KA, Pernet E, Sadeghi M, Downey J, Chronopoulos J, Lapshina E, Tsai O, Kaufmann E, Ding J, Divangahi M. BCG immunization induces CX3CR1 hi effector memory T cells to provide cross-protection via IFN-γ-mediated trained immunity. Nat Immunol 2024; 25:418-431. [PMID: 38225437 DOI: 10.1038/s41590-023-01739-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 12/20/2023] [Indexed: 01/17/2024]
Abstract
After a century of using the Bacillus Calmette-Guérin (BCG) vaccine, our understanding of its ability to provide protection against homologous (Mycobacterium tuberculosis) or heterologous (for example, influenza virus) infections remains limited. Here we show that systemic (intravenous) BCG vaccination provides significant protection against subsequent influenza A virus infection in mice. We further demonstrate that the BCG-mediated cross-protection against influenza A virus is largely due to the enrichment of conventional CD4+ effector CX3CR1hi memory αβ T cells in the circulation and lung parenchyma. Importantly, pulmonary CX3CR1hi T cells limit early viral infection in an antigen-independent manner via potent interferon-γ production, which subsequently enhances long-term antimicrobial activity of alveolar macrophages. These results offer insight into the unknown mechanism by which BCG has persistently displayed broad protection against non-tuberculosis infections via cross-talk between adaptive and innate memory responses.
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Affiliation(s)
- Kim A Tran
- Department of Medicine, Department of Pathology, Department of Microbiology & Immunology, Research Institute of the McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, Montreal, Quebec, Canada
| | - Erwan Pernet
- Department of Medicine, Department of Pathology, Department of Microbiology & Immunology, Research Institute of the McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, Montreal, Quebec, Canada
- Department of Medical Biology, Université du Québec à Trois-Rivières, Quebec, Quebec, Canada
| | - Mina Sadeghi
- Department of Medicine, Department of Pathology, Department of Microbiology & Immunology, Research Institute of the McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, Montreal, Quebec, Canada
| | - Jeffrey Downey
- Department of Medicine, Department of Pathology, Department of Microbiology & Immunology, Research Institute of the McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, Montreal, Quebec, Canada
| | - Julia Chronopoulos
- Department of Medicine, Department of Pathology, Department of Microbiology & Immunology, Research Institute of the McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, Montreal, Quebec, Canada
| | - Elizabeth Lapshina
- Department of Medicine, Department of Pathology, Department of Microbiology & Immunology, Research Institute of the McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, Montreal, Quebec, Canada
| | - Oscar Tsai
- Department of Medicine, Department of Pathology, Department of Microbiology & Immunology, Research Institute of the McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, Montreal, Quebec, Canada
| | - Eva Kaufmann
- Department of Medicine, Department of Pathology, Department of Microbiology & Immunology, Research Institute of the McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, Montreal, Quebec, Canada
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Jun Ding
- Department of Medicine, Department of Pathology, Department of Microbiology & Immunology, Research Institute of the McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, Montreal, Quebec, Canada
| | - Maziar Divangahi
- Department of Medicine, Department of Pathology, Department of Microbiology & Immunology, Research Institute of the McGill University Health Centre, McGill International TB Centre, Meakins-Christie Laboratories, McGill University, Montreal, Quebec, Canada.
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Kim HW, Ko MK, Park SH, Shin S, Kim GS, Kwak DY, Park JH, Kim SM, Lee JS, Lee MJ. D-galacto-D-mannan-mediated Dectin-2 activation orchestrates potent cellular and humoral immunity as a viral vaccine adjuvant. Front Immunol 2024; 15:1330677. [PMID: 38433834 PMCID: PMC10904532 DOI: 10.3389/fimmu.2024.1330677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/30/2024] [Indexed: 03/05/2024] Open
Abstract
Introduction Conventional foot-and-mouth disease (FMD) vaccines have been developed to enhance their effectiveness; however, several drawbacks remain, such as slow induction of antibody titers, short-lived immune response, and local side effects at the vaccination site. Therefore, we created a novel FMD vaccine that simultaneously induces cellular and humoral immune responses using the Dectin-2 agonist, D-galacto-D-mannan, as an adjuvant. Methods We evaluated the innate and adaptive (cellular and humoral) immune responses elicited by the novel FMD vaccine and elucidated the signaling pathway involved both in vitro and in vivo using mice and pigs, as well as immune cells derived from these animals. Results D-galacto-D-mannan elicited early, mid-, and long-term immunity via simultaneous induction of cellular and humoral immune responses by promoting the expression of immunoregulatory molecules. D-galacto-D-mannan also enhanced the immune response and coordinated vaccine-mediated immune response by suppressing genes associated with excessive inflammatory responses, such as nuclear factor kappa B, via Sirtuin 1 expression. Conclusion Our findings elucidated the immunological mechanisms induced by D-galacto-D-mannan, suggesting a background for the robust cellular and humoral immune responses induced by FMD vaccines containing D-galacto-D-mannan. Our study will help to facilitate the improvement of conventional FMD vaccines and the design of next-generation FMD vaccines.
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Affiliation(s)
- Hyeong Won Kim
- Center for Foot-and-Mouth Disease Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon, Gyeongsangbuk-do, Republic of Korea
| | - Mi-Kyeong Ko
- Center for Foot-and-Mouth Disease Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon, Gyeongsangbuk-do, Republic of Korea
| | - So Hui Park
- Center for Foot-and-Mouth Disease Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon, Gyeongsangbuk-do, Republic of Korea
| | - Seokwon Shin
- Center for Foot-and-Mouth Disease Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon, Gyeongsangbuk-do, Republic of Korea
| | - Gang Sik Kim
- Center for Foot-and-Mouth Disease Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon, Gyeongsangbuk-do, Republic of Korea
| | - Dong Yun Kwak
- Center for Foot-and-Mouth Disease Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon, Gyeongsangbuk-do, Republic of Korea
| | - Jong-Hyeon Park
- Center for Foot-and-Mouth Disease Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon, Gyeongsangbuk-do, Republic of Korea
| | - Su-Mi Kim
- Center for Foot-and-Mouth Disease Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon, Gyeongsangbuk-do, Republic of Korea
| | - Jong-Soo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Min Ja Lee
- Center for Foot-and-Mouth Disease Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon, Gyeongsangbuk-do, Republic of Korea
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Li J, Ma S, Pei H, Jiang J, Zou Q, Lv Z. Review of T cell proliferation regulatory factors in treatment and prognostic prediction for solid tumors. Heliyon 2023; 9:e21329. [PMID: 37954355 PMCID: PMC10637962 DOI: 10.1016/j.heliyon.2023.e21329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/15/2023] [Accepted: 10/19/2023] [Indexed: 11/14/2023] Open
Abstract
T cell proliferation regulators (Tcprs), which are positive regulators that promote T cell function, have made great contributions to the development of therapies to improve T cell function. CAR (chimeric antigen receptor) -T cell therapy, a type of adoptive cell transfer therapy that targets tumor cells and enhances immune lethality, has led to significant progress in the treatment of hematologic tumors. However, the applications of CAR-T in solid tumor treatment remain limited. Therefore, in this review, we focus on the development of Tcprs for solid tumor therapy and prognostic prediction. We summarize potential strategies for targeting different Tcprs to enhance T cell proliferation and activation and inhibition of cancer progression, thereby improving the antitumor activity and persistence of CAR-T. In summary, we propose means of enhancing CAR-T cells by expressing different Tcprs, which may lead to the development of a new generation of cell therapies.
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Affiliation(s)
- Jiayu Li
- Student Innovation Competition Team, College of Biomedical Engineering, Sichuan University, Chengdu 610065, China
- College of Life Science, Sichuan University, Chengdu 610065, China
| | - Shuhan Ma
- Student Innovation Competition Team, College of Biomedical Engineering, Sichuan University, Chengdu 610065, China
| | - Hongdi Pei
- Student Innovation Competition Team, College of Biomedical Engineering, Sichuan University, Chengdu 610065, China
| | - Jici Jiang
- Student Innovation Competition Team, College of Biomedical Engineering, Sichuan University, Chengdu 610065, China
| | - Quan Zou
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
- Yangtze Delta Region Institute (Quzhou), University of Electronic Science and Technology of China, Quzhou 324000, China
| | - Zhibin Lv
- Student Innovation Competition Team, College of Biomedical Engineering, Sichuan University, Chengdu 610065, China
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Hausmann F, Ergen C, Khatri R, Marouf M, Hänzelmann S, Gagliani N, Huber S, Machart P, Bonn S. DISCERN: deep single-cell expression reconstruction for improved cell clustering and cell subtype and state detection. Genome Biol 2023; 24:212. [PMID: 37730638 PMCID: PMC10510283 DOI: 10.1186/s13059-023-03049-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 08/23/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Single-cell sequencing provides detailed insights into biological processes including cell differentiation and identity. While providing deep cell-specific information, the method suffers from technical constraints, most notably a limited number of expressed genes per cell, which leads to suboptimal clustering and cell type identification. RESULTS Here, we present DISCERN, a novel deep generative network that precisely reconstructs missing single-cell gene expression using a reference dataset. DISCERN outperforms competing algorithms in expression inference resulting in greatly improved cell clustering, cell type and activity detection, and insights into the cellular regulation of disease. We show that DISCERN is robust against differences between batches and is able to keep biological differences between batches, which is a common problem for imputation and batch correction algorithms. We use DISCERN to detect two unseen COVID-19-associated T cell types, cytotoxic CD4+ and CD8+ Tc2 T helper cells, with a potential role in adverse disease outcome. We utilize T cell fraction information of patient blood to classify mild or severe COVID-19 with an AUROC of 80% that can serve as a biomarker of disease stage. DISCERN can be easily integrated into existing single-cell sequencing workflow. CONCLUSIONS Thus, DISCERN is a flexible tool for reconstructing missing single-cell gene expression using a reference dataset and can easily be applied to a variety of data sets yielding novel insights, e.g., into disease mechanisms.
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Affiliation(s)
- Fabian Hausmann
- Institute of Medical Systems Biology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- Center for Biomedical AI, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Can Ergen
- Institute of Medical Systems Biology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- Center for Biomedical AI, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Robin Khatri
- Institute of Medical Systems Biology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- Center for Biomedical AI, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Mohamed Marouf
- Institute of Medical Systems Biology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Sonja Hänzelmann
- Institute of Medical Systems Biology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- Center for Biomedical AI, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Nicola Gagliani
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- Hamburg Center for Translational Immunology (HCTI), I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- Section of Molecular Immunology und Gastroenterology, I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Samuel Huber
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- Hamburg Center for Translational Immunology (HCTI), I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Pierre Machart
- Institute of Medical Systems Biology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
- Center for Biomedical AI, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Stefan Bonn
- Institute of Medical Systems Biology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
- Center for Biomedical AI, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
- Hamburg Center for Translational Immunology (HCTI), I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
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Lionello FCP, Rotundo S, Bruno G, Marino G, Morrone HL, Fusco P, Costa C, Russo A, Trecarichi EM, Beltrame A, Torti C. Touching Base with Some Mediterranean Diseases of Interest from Paradigmatic Cases at the "Magna Graecia" University Unit of Infectious Diseases: A Didascalic Review. Diagnostics (Basel) 2023; 13:2832. [PMID: 37685370 PMCID: PMC10486464 DOI: 10.3390/diagnostics13172832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
Among infectious diseases, zoonoses are increasing in importance worldwide, especially in the Mediterranean region. We report herein some clinical cases from a third-level hospital in Calabria region (Southern Italy) and provide a narrative review of the most relevant features of these diseases from epidemiological and clinical perspectives. Further, the pathogenic mechanisms involved in zoonotic diseases are reviewed, focusing on the mechanisms used by pathogens to elude the immune system of the host. These topics are of particular concern for individuals with primary or acquired immunodeficiency (e.g., people living with HIV, transplant recipients, patients taking immunosuppressive drugs). From the present review, it appears that diagnostic innovations and the availability of more accurate methods, together with better monitoring of the incidence and prevalence of these infections, are urgently needed to improve interventions for better preparedness and response.
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Affiliation(s)
- Ferdinando Carmelo Pio Lionello
- Department of Medical and Surgical Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (F.C.P.L.); (S.R.); (G.B.); (G.M.); (H.L.M.); (A.R.); (E.M.T.); (C.T.)
| | - Salvatore Rotundo
- Department of Medical and Surgical Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (F.C.P.L.); (S.R.); (G.B.); (G.M.); (H.L.M.); (A.R.); (E.M.T.); (C.T.)
| | - Gabriele Bruno
- Department of Medical and Surgical Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (F.C.P.L.); (S.R.); (G.B.); (G.M.); (H.L.M.); (A.R.); (E.M.T.); (C.T.)
| | - Gabriella Marino
- Department of Medical and Surgical Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (F.C.P.L.); (S.R.); (G.B.); (G.M.); (H.L.M.); (A.R.); (E.M.T.); (C.T.)
| | - Helen Linda Morrone
- Department of Medical and Surgical Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (F.C.P.L.); (S.R.); (G.B.); (G.M.); (H.L.M.); (A.R.); (E.M.T.); (C.T.)
| | - Paolo Fusco
- Department of Medical and Surgical Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (F.C.P.L.); (S.R.); (G.B.); (G.M.); (H.L.M.); (A.R.); (E.M.T.); (C.T.)
- Unit of Infectious and Tropical Diseases, “Mater Domini” Teaching Hospital, 88100 Catanzaro, Italy;
| | - Chiara Costa
- Unit of Infectious and Tropical Diseases, “Mater Domini” Teaching Hospital, 88100 Catanzaro, Italy;
| | - Alessandro Russo
- Department of Medical and Surgical Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (F.C.P.L.); (S.R.); (G.B.); (G.M.); (H.L.M.); (A.R.); (E.M.T.); (C.T.)
- Unit of Infectious and Tropical Diseases, “Mater Domini” Teaching Hospital, 88100 Catanzaro, Italy;
| | - Enrico Maria Trecarichi
- Department of Medical and Surgical Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (F.C.P.L.); (S.R.); (G.B.); (G.M.); (H.L.M.); (A.R.); (E.M.T.); (C.T.)
- Unit of Infectious and Tropical Diseases, “Mater Domini” Teaching Hospital, 88100 Catanzaro, Italy;
| | - Anna Beltrame
- College of Public Health, University of South Florida, Gainesville, FL 33620, USA;
| | - Carlo Torti
- Department of Medical and Surgical Sciences, University “Magna Graecia”, 88100 Catanzaro, Italy; (F.C.P.L.); (S.R.); (G.B.); (G.M.); (H.L.M.); (A.R.); (E.M.T.); (C.T.)
- Unit of Infectious and Tropical Diseases, “Mater Domini” Teaching Hospital, 88100 Catanzaro, Italy;
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8
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Fung HY, Teryek M, Lemenze AD, Bergsbaken T. CD103 fate mapping reveals that intestinal CD103 - tissue-resident memory T cells are the primary responders to secondary infection. Sci Immunol 2022; 7:eabl9925. [PMID: 36332012 PMCID: PMC9901738 DOI: 10.1126/sciimmunol.abl9925] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Tissue-resident memory T (TRM) cells remain poised in the tissue and mediate robust protection from secondary infection. TRM cells within the intestine and other tissues are heterogeneous in their phenotype and function; however, the contributions of these TRM subsets to secondary infection remain poorly defined. To address the plasticity of intestinal TRM subsets and their role in local and systemic immunity, we generated mice to fate map intestinal CD103+ TRM cells and track their location and function during secondary infection with Yersinia pseudotuberculosis. We found that CD103+ TRM cells remained lodged in the tissue and were poorly reactivated during secondary challenge. CD103- TRM cells were the primary responders to secondary infection and expanded within the tissue, with limited contribution from circulating memory T cells. The transcriptional profile of CD103- TRM cells demonstrated maintenance of a gene signature similar to circulating T cells along with increased cytokine production and migratory potential. CD103- TRM cells also expressed genes associated with T cell receptor (TCR) activation and displayed enhanced TCR-mediated reactivation both in vitro and in vivo compared with their CD103+ counterparts. These studies reveal the limited recall potential of CD103+ TRM subsets and the role of CD103- TRM cells as central memory-like T cells within peripheral tissues.
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Hou J, Wen X, Lu Z, Wu G, Yang G, Tang C, Qu G, Xu Y. A novel T-cell proliferation-associated regulator signature pre-operatively predicted the prognostic of bladder cancer. Front Immunol 2022; 13:970949. [PMID: 36211359 PMCID: PMC9539738 DOI: 10.3389/fimmu.2022.970949] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 09/09/2022] [Indexed: 12/09/2022] Open
Abstract
Background Bladder cancer (BCa) is a remarkably malignant and heterogeneous neoplastic disease, and its prognosis prediction is still challenging. Even with the mounting researches on the mechanisms of tumor immunotherapy, the prognostic value of T-cell proliferation regulators in bladder cancer remains elusive. Methods Herein, we collected mRNA expression profiles and relevant clinical information of bladder cancer sufferers from a publicly available data base. Then, the LASSO Cox regression model was utilized to establish a multi-gene signature for the TCGA cohort to predict the prognosis and staging of bladder cancer. Eventually, the predictive power of the model was validated by randomized grouping. Results The outcomes revealed that most genes related to T-cell proliferation in the TCGA cohort exhibited different expressions between BCa cells and neighboring healthy tissues. Univariable Cox regressive analyses showed that four DEGs were related to OS in bladder cancer patients (p<0.05). We constructed a histogram containing four clinical characteristics and separated sufferers into high- and low-risk groups. High-risk sufferers had remarkably lower OS compared with low-risk sufferers (P<0.001). Eventually, the predictive power of the signature was verified by ROC curve analyses, and similar results were obtained in the validation cohort. Functional analyses were also completed, which showed the enrichment of immune-related pathways and different immune status in the two groups. Moreover, by single-cell sequencing, our team verified that CXCL12, a T-lymphocyte proliferation regulator, influenced bladder oncogenesis and progression by depleting T-lymphocyte proliferation in the tumor microenvironment, thus promoting tumor immune evasion. Conclusion This study establishes a novel T cell proliferation-associated regulator signature which can be used for the prognostic prediction of bladder cancer. The outcomes herein facilitate the studies on T-cell proliferation and its immune micro-environment to ameliorate prognoses and immunotherapeutic responses.
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Affiliation(s)
- Jian Hou
- Department of Urology, Zhuzhou Central Hospital, Zhuzhou, China
- Division of Urology, Department of Surgery, The University of Hongkong-Shenzhen Hosipital, Shenzhen, China
| | - Xiangyang Wen
- Division of Urology, Department of Surgery, The University of Hongkong-Shenzhen Hosipital, Shenzhen, China
| | - Zhenquan Lu
- Division of Urology, Department of Surgery, The University of Hongkong-Shenzhen Hosipital, Shenzhen, China
| | - Guoqing Wu
- Division of Urology, Department of Surgery, The University of Hongkong-Shenzhen Hosipital, Shenzhen, China
| | - Guang Yang
- Department of Urology, Zhuzhou Central Hospital, Zhuzhou, China
| | - Cheng Tang
- Department of Urology, Zhuzhou Central Hospital, Zhuzhou, China
| | - Genyi Qu
- Department of Urology, Zhuzhou Central Hospital, Zhuzhou, China
- *Correspondence: Genyi Qu,
| | - Yong Xu
- Department of Urology, Zhuzhou Central Hospital, Zhuzhou, China
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10
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Chen MX, Oh YS, Kim Y. S100A10 and its binding partners in depression and antidepressant actions. Front Mol Neurosci 2022; 15:953066. [PMID: 36046712 PMCID: PMC9423026 DOI: 10.3389/fnmol.2022.953066] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/24/2022] [Indexed: 11/13/2022] Open
Abstract
S100A10 (p11) is an emerging player in the neurobiology of depression and antidepressant actions. p11 was initially thought to be a modulator of serotonin receptor (5-HTR) trafficking and serotonergic transmission, though newly identified binding partners of p11 and neurobiological studies of these proteins have shed light on multifunctional roles for p11 in the regulation of glutamatergic transmission, calcium signaling and nuclear events related to chromatin remodeling, histone modification, and gene transcription. This review article focuses on direct binding partners of p11 in the brain including 5-HTRs, mGluR5, annexin A2, Ahnak, Smarca3, and Supt6h, as well as their roles in neuronal function, particularly in the context of depressive-like behavior as well as behavioral effects of antidepressant drug treatments in mice. In addition, we discuss neurobiological insights from recently uncovered p11 pathways in multiple types of neurons and non-neuronal cells and cast major remaining questions for future studies.
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Affiliation(s)
- Michelle X. Chen
- University of Iowa Medical Scientist Training Program, Carver College of Medicine, University of Iowa, Iowa, IA, United States
| | - Yong-Seok Oh
- Department of Brain Sciences, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu, South Korea
| | - Yong Kim
- Department of Neurosurgery, Robert Wood Johnson Medical School, Rutgers University, Piscataway, NJ, United States
- Brain Health Institute, Rutgers University, Piscataway, NJ, United States
- *Correspondence: Yong Kim
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11
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Zhang Z, Yu Y, Li P, Wang M, Jiao W, Liang Y, Niu H. Identification and validation of an immune signature associated with EMT and metabolic reprogramming for predicting prognosis and drug response in bladder cancer. Front Immunol 2022; 13:954616. [PMID: 35958586 PMCID: PMC9359097 DOI: 10.3389/fimmu.2022.954616] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 07/01/2022] [Indexed: 11/13/2022] Open
Abstract
Background Epithelial-mesenchymal transition (EMT), one leading reason of the dismal prognosis of bladder cancer (BLCA), is closely associated with tumor invasion and metastasis. We aimed to develop a novel immune−related gene signature based on different EMT and metabolic status to predict the prognosis of BLCA. Methods Gene expression and clinical data were obtained from TCGA and GEO databases. Patients were clustered based on EMT and metabolism scores calculated by ssGSEA. The immune-related differentially expressed genes (DEGs) between the two clusters with the most obvious differences were used to construct the signature by LASSO and Cox analysis. Time-dependent receiver operating characteristic (ROC) curves and Kaplan–Meier curves were utilized to evaluate the gene signature in training and validation cohorts. Finally, the function of the signature genes AHNAK and NFATC1 in BLCA cell lines were explored by cytological experiments. Results Based on the results of ssGSEA, TCGA patients were divided into three clusters, among which cluster 1 and cluster 3 had completely opposite EMT and metabolic status. Patients in cluster 3 had a significantly worse clinical prognosis than cluster 1. Immune-related DEGs were selected between the two clusters to construct the predictive signature based on 14 genes. High-risk patients had poorer prognosis, lower proportions of CD8+ T cells, higher EMT and carbohydrate metabolism, and less sensitivity to chemotherapy and immunotherapy. Overexpression of AHNAK or NFATC1 promoted the proliferation, migration and invasion of T24 and UMUC3 cells. Silencing ANHAK or NFATC1 could effectively inhibit EMT and metabolism in T24 and UMUC3 cells. Conclusion The established immune signature may act as a promising model for generating accurate prognosis for patients and predicting their EMT and metabolic status, thus guiding the treatment of BLCA patients.
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Affiliation(s)
- Zhao Zhang
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
- Key Laboratory, Department of Urology and Andrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yongbo Yu
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
- Key Laboratory, Department of Urology and Andrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Peng Li
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
- Key Laboratory, Department of Urology and Andrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Meilan Wang
- Nursing department, Shandong Institute of Petroleum and Chemical Technology, Dongying, China
| | - Wei Jiao
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
- Key Laboratory, Department of Urology and Andrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ye Liang
- Key Laboratory, Department of Urology and Andrology, The Affiliated Hospital of Qingdao University, Qingdao, China
- *Correspondence: Haitao Niu, ; Ye Liang,
| | - Haitao Niu
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
- Key Laboratory, Department of Urology and Andrology, The Affiliated Hospital of Qingdao University, Qingdao, China
- *Correspondence: Haitao Niu, ; Ye Liang,
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12
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Vinci M, Kursula P, Greco D, Elia M, Vetri L, Schepis C, Chiavetta V, Donadio S, Roccella M, Carotenuto M, Romano V, Calì F. Exome sequencing in a child with neurodevelopmental disorder and epilepsy: Variant analysis of the AHNAK2 gene. Mol Genet Genomic Med 2022; 10:e2012. [PMID: 35789128 PMCID: PMC9482394 DOI: 10.1002/mgg3.2012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 06/14/2022] [Accepted: 06/21/2022] [Indexed: 11/28/2022] Open
Abstract
Background The AHNAK2 gene encodes a large nucleoprotein expressed in several tissues, including brain, squamous epithelia, smooth muscle, and neuropil. Its role in calcium signaling has been suggested and to date, clear evidence about its involvement in the pathogenesis of clinical disorders is still lacking. Methods Here, we report a female 24‐year‐old patient diagnosed with a cardio‐facio‐cutaneous‐like phenotype (CFC‐like), characterized by epilepsy, psychomotor development delay, atopic dermatitis, congenital heart disease, hypotonia, and facial dysmorphism, who is compound heterozygote for two missense mutations in the AHNAK2 gene detected by exome sequencing. Results This patient had no detectable variant in any of the genes known to be associated with the cardio‐facio‐cutaneous syndrome. Moreover, the mode of inheritance does not appear to be autosomal dominant, as it is in typical CFC syndrome. We have performed in silico assessment of mutation severity separately for each missense mutation, but this analysis excludes a severe effect on protein function. Protein structure predictions indicate the mutations are located in flexible regions possibly involved in molecular interactions. Conclusion We discuss an alternative interpretation on the potential involvement of the two missense mutations in the AHNAK2 gene on the expression of CFC‐like phenotype in this patient based on inter‐allelic complementation.
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Affiliation(s)
| | - Petri Kursula
- Department of Biomedicine, University of Bergen, Bergen, Norway.,Biocenter Oulu & Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | | | | | - Luigi Vetri
- Oasi Research Institute-IRCCS, Troina, Italy
| | | | | | - Serena Donadio
- Department of Sciences for Health Promotion and Mother and Child Care "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - Michele Roccella
- Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy
| | - Marco Carotenuto
- Clinic of Child and Adolescent Neuropsychiatry, Department of Mental Health, Physical and Preventive Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Valentino Romano
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Palermo, Italy
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13
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Li L, Liu Y, Feng T, Zhou W, Wang Y, Li H. The AHNAK induces increased IL-6 production in CD4+ T cells and serves as a potential diagnostic biomarker for recurrent pregnancy loss. Clin Exp Immunol 2022; 209:291-304. [PMID: 35766885 PMCID: PMC9521664 DOI: 10.1093/cei/uxac067] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/09/2022] [Accepted: 06/28/2022] [Indexed: 01/23/2023] Open
Abstract
Disorganized maternal-fetal immune tolerance contributes to the occurrence of unexplained recurrent pregnancy loss (RPL). AHNAK is a scaffolding protein participating in the regulation of Ca2+ entry into T cells and the pathophysiology of diverse diseases. We performed differential gene expression analysis in decidual immune cells (DICs) isolated from three patients with RPL and from three healthy controls via RNA-sequencing (RNA-seq), which revealed 407 differentially expressed genes (DEGs). Among these DEGs, we underscored the clinical significance of elevated AHNAK mRNA and protein levels in DICs, peripheral blood mononuclear cells (PBMCs), and decidua of the patients with RPL, suggesting its potential use as a biomarker for the diagnosis of RPL. Especially, the ratios of decidual and blood AHNAK+CD4+ T cells in the CD4+ T cell population were significantly increased in patients with RPL, and the loss of AHNAK was further shown to inhibit interleukin (IL)-6 secretion in the CD4+ Jurkat cell line. Similar patterns were also observed in the clinical decidual and blood specimens. We uncovered that the AHNAK+CD4+ T cells could secrete more IL-6 than that the corresponding AHNAK-CD4+ T cells. Moreover, the frequencies of decidual and blood IL-6+CD4+ T cells in the CD4+ T-cell population were also increased in patients with RPL and showed significant positive correlations with the frequencies of AHNAK+CD4+ T cells. Our findings suggest that the elevated AHNAK expressed by CD4+ T cells may be involved in the immune dysregulation of RPL by increasing IL-6 production, illustrating its potential as a novel intervention target for RPL.
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Affiliation(s)
- Liman Li
- Center of Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yuan Liu
- Center of Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Ting Feng
- Center of Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Wenjie Zhou
- Center of Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yanyun Wang
- Correspondence: Yanyun Wang, Center of Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China. ; or Hong Li, Center of Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China.
| | - Hong Li
- Correspondence: Yanyun Wang, Center of Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China. ; or Hong Li, Center of Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China.
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14
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The C3d-fused foot-and-mouth disease vaccine platform overcomes maternally-derived antibody interference by inducing a potent adaptive immunity. NPJ Vaccines 2022; 7:70. [PMID: 35764653 PMCID: PMC9240001 DOI: 10.1038/s41541-022-00496-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/31/2022] [Indexed: 12/04/2022] Open
Abstract
Vaccination prevents and controls foot-and-mouth disease (FMD). However, the current FMD vaccine remains disadvantageous since it cannot overcome maternally-derived antibody (MDA) interference in weeks-old animals, which suppress active immunity via vaccination. To address this, we developed the immune-enhancing O PA2-C3d and A22-C3d FMD vaccine strains that can stimulate receptors on the surface of B cells by inserting C3d (a B cell epitope) into the VP1 region of O PA2 (FMDV type O) and A22 (FMDV type A). We purified inactivated viral antigens from these vaccine strains and evaluated their immunogenicity and host defense against FMDV infection in mice. We also verified its efficacy in inducing an adaptive immune response and overcome MDA interference in MDA-positive (MDA(+), FMD-seropositive) and -negative (MDA(−), FMD-seronegative) pigs. These results suggest a key strategy for establishing novel FMD vaccine platform to overcome MDA interference and induce a robust adaptive immune response.
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15
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Bhatti DL, Medrihan L, Chen MX, Jin J, McCabe KA, Wang W, Azevedo EP, Ledo JH, Kim Y. Molecular and Cellular Adaptations in Hippocampal Parvalbumin Neurons Mediate Behavioral Responses to Chronic Social Stress. Front Mol Neurosci 2022; 15:898851. [PMID: 35813065 PMCID: PMC9268684 DOI: 10.3389/fnmol.2022.898851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 04/19/2022] [Indexed: 11/13/2022] Open
Abstract
Parvalbumin-expressing interneurons (PV neurons) maintain inhibitory control of local circuits implicated in behavioral responses to environmental stressors. However, the roles of molecular and cellular adaptations in PV neurons in stress susceptibility or resilience have not been clearly established. Here, we show behavioral outcomes of chronic social defeat stress (CSDS) are mediated by differential neuronal activity and gene expression in hippocampal PV neurons in mice. Using in vivo electrophysiology and chemogenetics, we find increased PV neuronal activity in the ventral dentate gyrus is required and sufficient for behavioral susceptibility to CSDS. PV neuron-selective translational profiling indicates mitochondrial oxidative phosphorylation is the most significantly altered pathway in stress-susceptible versus resilient mice. Among differentially expressed genes associated with stress-susceptibility and resilience, we find Ahnak, an endogenous regulator of L-type calcium channels which are implicated in the regulation of mitochondrial function and gene expression. Notably, Ahnak deletion in PV neurons impedes behavioral susceptibility to CSDS. Altogether, these findings indicate behavioral effects of chronic stress can be controlled by selective modulation of PV neuronal activity or a regulator of L-type calcium signaling in PV neurons.
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Affiliation(s)
- Dionnet L. Bhatti
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
- Program in Neuroscience, Harvard Medical School, Boston, MA, United States
| | - Lucian Medrihan
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
| | - Michelle X. Chen
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
| | - Junghee Jin
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
| | - Kathryn A. McCabe
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
| | - Wei Wang
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
- Bioinformatics Resource Center, The Rockefeller University, New York, NY, United States
| | - Estefania P. Azevedo
- Laboratory of Molecular Genetics, The Rockefeller University, New York, NY, United States
| | - Jose H. Ledo
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
| | - Yong Kim
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY, United States
- Department of Neurosurgery, Robert Wood Johnson Medical School, Rutgers University, Piscataway, NJ, United States
- Brain Health Institute, Rutgers University, Piscataway, NJ, United States
- *Correspondence: Yong Kim,
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16
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Baessler A, Novis CL, Shen Z, Perovanovic J, Wadsworth M, Thiede KA, Sircy LM, Harrison-Chau M, Nguyen NX, Varley KE, Tantin D, Hale JS. Tet2 coordinates with Foxo1 and Runx1 to balance T follicular helper cell and T helper 1 cell differentiation. SCIENCE ADVANCES 2022; 8:eabm4982. [PMID: 35704571 PMCID: PMC9200277 DOI: 10.1126/sciadv.abm4982] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 04/30/2022] [Indexed: 05/22/2023]
Abstract
In response to various types of infection, naïve CD4+ T cells differentiate into diverse helper T cell subsets; however, the epigenetic programs that regulate differentiation in response to viral infection remain poorly understood. Demethylation of CpG dinucleotides by Tet methylcytosine dioxygenases is a key component of epigenetic programing that promotes specific gene expression, cellular differentiation, and function. We report that following viral infection, Tet2-deficient CD4+ T cells preferentially differentiate into highly functional germinal center T follicular helper (TFH) cells that provide enhanced help for B cells. Using genome-wide DNA methylation and transcription factor binding analyses, we find that Tet2 coordinates with multiple transcription factors, including Foxo1 and Runx1, to mediate the demethylation and expression of target genes, including genes encoding repressors of TFH differentiation. Our findings establish Tet2 as an important regulator of TFH cell differentiation and reveal pathways that could be targeted to enhance immune responses against infectious disease.
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Affiliation(s)
- Andrew Baessler
- Department of Pathology, Division of Microbiology and Immunology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Camille L. Novis
- Department of Pathology, Division of Microbiology and Immunology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Zuolian Shen
- Department of Pathology, Division of Microbiology and Immunology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Jelena Perovanovic
- Department of Pathology, Division of Microbiology and Immunology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Mark Wadsworth
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Kendall A. Thiede
- Department of Pathology, Division of Microbiology and Immunology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Linda M. Sircy
- Department of Pathology, Division of Microbiology and Immunology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Malia Harrison-Chau
- Department of Pathology, Division of Microbiology and Immunology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Nguyen X. Nguyen
- Department of Pathology, Division of Microbiology and Immunology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Katherine E. Varley
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Dean Tantin
- Department of Pathology, Division of Microbiology and Immunology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - J. Scott Hale
- Department of Pathology, Division of Microbiology and Immunology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
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17
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Akama-Garren EH, Carroll MC. T Cell Help in the Autoreactive Germinal Center. Scand J Immunol 2022; 95:e13192. [PMID: 35587582 DOI: 10.1111/sji.13192] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 05/10/2022] [Accepted: 05/13/2022] [Indexed: 11/29/2022]
Abstract
The germinal center serves as a site of B cell selection and affinity maturation, critical processes for productive adaptive immunity. In autoimmune disease tolerance is broken in the germinal center reaction, leading to production of autoreactive B cells that may propagate disease. Follicular T cells are crucial regulators of this process, providing signals necessary for B cell survival in the germinal center. Here we review the emerging roles of follicular T cells in the autoreactive germinal center. Recent advances in immunological techniques have allowed study of the gene expression profiles and repertoire of follicular T cells at unprecedented resolution. These studies provide insight into the potential role follicular T cells play in preventing or facilitating germinal center loss of tolerance. Improved understanding of the mechanisms of T cell help in autoreactive germinal centers provides novel therapeutic targets for diseases of germinal center dysfunction.
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Affiliation(s)
- Elliot H Akama-Garren
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.,Harvard-MIT Health Sciences and Technology, Harvard Medical School, Boston, MA, USA
| | - Michael C Carroll
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
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18
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Interaction between TMEFF1 and AHNAK proteins in ovarian cancer cells: Implications for clinical prognosis. Int Immunopharmacol 2022; 107:108726. [PMID: 35338959 DOI: 10.1016/j.intimp.2022.108726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 03/13/2022] [Accepted: 03/18/2022] [Indexed: 12/23/2022]
Abstract
TMEFF1 is a newly discovered protein involved in the physiological functions of the central nervous system, embryonic development, and other biological processes. Our previous study revealed that TMEFF1 acts as a tumor-promoting gene in ovarian cancer. AHNAK, as a giant scaffolding protein, plays a role in the formation of the blood-brain barrier, cell architecture and the regulation of cardiac calcium channels. However, its role in ovarian cancer remains poorly researched. In this study, we detected the expression of AHNAK and TMEFF1 in 148 different ovarian cancer tissues, determined their relationship with pathological parameters and prognosis, clarified the interaction between the two proteins, and explored the related cancer-promoting mechanisms through immunohistochemistry, immunoprecipitation, immunofluorescence double staining, western blotting, and bioinformatics. The high expression of ANHAK and TMEFF1 in ovarian cancer indicated a higher degree of tumor malignancy and a worse prognosis. Furthermore, the expression of TMEFF1 and AHNAK was significantly positively correlated. The results also showed that AHNAK and TMEFF1 co-localized and interacted with each other in ovarian cancer tissues and cells. And knockdown of AHNAK promoted proliferation, migration and invasion of ovarian cancer cells in vitro. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses showed that AHNAK and related genes were enriched during mitosis regulation, cytoskeleton formation, gene epigenetics, etc., whereas TMEFF1 and related genes are enriched during immune regulation and other processes. We also clarified the network of kinases, microRNA, and transcription factor targets, and the impact of genetic mutations on prognosis. Notably, AHNAK was regulated by the expression of TMEFF1 and can activate the MAPK pathways. Overall, high expression of AHNAK and TMEFF1 in ovarian cancer cells indicated a higher degree of tumor malignancy and a worse prognosis. Therefore, the interaction between AHNAK and TMEFF1 may become a potential anti-tumor target for ovarian cancer treatment.
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19
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Biswas B, Guemiri R, Cadix M, Labbé CM, Chakraborty A, Dutertre M, Robert C, Vagner S. Differential Effects on the Translation of Immune-Related Alternatively Polyadenylated mRNAs in Melanoma and T Cells by eIF4A Inhibition. Cancers (Basel) 2022; 14:cancers14051177. [PMID: 35267483 PMCID: PMC8909304 DOI: 10.3390/cancers14051177] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/20/2022] [Accepted: 02/21/2022] [Indexed: 02/05/2023] Open
Abstract
Targeting the translation initiation complex eIF4F, which binds the 5' cap of mRNAs, is a promising anti-cancer approach. Silvestrol, a small molecule inhibitor of eIF4A, the RNA helicase component of eIF4F, inhibits the translation of the mRNA encoding the signal transducer and activator of transcription 1 (STAT1) transcription factor, which, in turn, reduces the transcription of the gene encoding one of the major immune checkpoint proteins, i.e., programmed death ligand-1 (PD-L1) in melanoma cells. A large proportion of human genes produce multiple mRNAs differing in their 3'-ends through the use of alternative polyadenylation (APA) sites, which, when located in alternative last exons, can generate protein isoforms, as in the STAT1 gene. Here, we provide evidence that the STAT1α, but not STAT1β protein isoform generated by APA, is required for silvestrol-dependent inhibition of PD-L1 expression in interferon-γ-treated melanoma cells. Using polysome profiling in activated T cells we find that, beyond STAT1, eIF4A inhibition downregulates the translation of some important immune-related mRNAs, such as the ones encoding TIM-3, LAG-3, IDO1, CD27 or CD137, but with little effect on the ones for BTLA and ADAR-1 and no effect on the ones encoding CTLA-4, PD-1 and CD40-L. We next apply RT-qPCR and 3'-seq (RNA-seq focused on mRNA 3' ends) on polysomal RNAs to analyze in a high throughput manner the effect of eIF4A inhibition on the translation of APA isoforms. We identify about 150 genes, including TIM-3, LAG-3, AHNAK and SEMA4D, for which silvestrol differentially inhibits the translation of APA isoforms in T cells. It is therefore crucial to consider 3'-end mRNA heterogeneity in the understanding of the anti-tumor activities of eIF4A inhibitors.
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Affiliation(s)
- Biswendu Biswas
- Institut Curie, PSL Research University, CNRS UMR 3348, INSERM U1278, 91401 Orsay, France; (B.B.); (M.C.); (C.M.L.); (A.C.); (M.D.)
- Biologie de l’ARN, Signalisation et Cancer, Université Paris Sud, Université Paris-Saclay, CNRS UMR 3348, 91401 Orsay, France
- Équipe Labellisée Ligue Contre le Cancer, 91401 Orsay, France
- INSERM U981, Gustave Roussy Cancer Campus, 94805 Villejuif, France;
- Faculté de Médecine, Université Paris Sud, Université Paris-Saclay, 94270 Kremlin-Bicêtre, France
| | - Ramdane Guemiri
- INSERM U981, Gustave Roussy Cancer Campus, 94805 Villejuif, France;
- Faculté de Médecine, Université Paris Sud, Université Paris-Saclay, 94270 Kremlin-Bicêtre, France
| | - Mandy Cadix
- Institut Curie, PSL Research University, CNRS UMR 3348, INSERM U1278, 91401 Orsay, France; (B.B.); (M.C.); (C.M.L.); (A.C.); (M.D.)
- Biologie de l’ARN, Signalisation et Cancer, Université Paris Sud, Université Paris-Saclay, CNRS UMR 3348, 91401 Orsay, France
- Équipe Labellisée Ligue Contre le Cancer, 91401 Orsay, France
| | - Céline M. Labbé
- Institut Curie, PSL Research University, CNRS UMR 3348, INSERM U1278, 91401 Orsay, France; (B.B.); (M.C.); (C.M.L.); (A.C.); (M.D.)
- Biologie de l’ARN, Signalisation et Cancer, Université Paris Sud, Université Paris-Saclay, CNRS UMR 3348, 91401 Orsay, France
- Équipe Labellisée Ligue Contre le Cancer, 91401 Orsay, France
| | - Alina Chakraborty
- Institut Curie, PSL Research University, CNRS UMR 3348, INSERM U1278, 91401 Orsay, France; (B.B.); (M.C.); (C.M.L.); (A.C.); (M.D.)
- Biologie de l’ARN, Signalisation et Cancer, Université Paris Sud, Université Paris-Saclay, CNRS UMR 3348, 91401 Orsay, France
- Équipe Labellisée Ligue Contre le Cancer, 91401 Orsay, France
| | - Martin Dutertre
- Institut Curie, PSL Research University, CNRS UMR 3348, INSERM U1278, 91401 Orsay, France; (B.B.); (M.C.); (C.M.L.); (A.C.); (M.D.)
- Biologie de l’ARN, Signalisation et Cancer, Université Paris Sud, Université Paris-Saclay, CNRS UMR 3348, 91401 Orsay, France
- Équipe Labellisée Ligue Contre le Cancer, 91401 Orsay, France
| | - Caroline Robert
- INSERM U981, Gustave Roussy Cancer Campus, 94805 Villejuif, France;
- Faculté de Médecine, Université Paris Sud, Université Paris-Saclay, 94270 Kremlin-Bicêtre, France
- Correspondence: (C.R.); (S.V.)
| | - Stéphan Vagner
- Institut Curie, PSL Research University, CNRS UMR 3348, INSERM U1278, 91401 Orsay, France; (B.B.); (M.C.); (C.M.L.); (A.C.); (M.D.)
- Biologie de l’ARN, Signalisation et Cancer, Université Paris Sud, Université Paris-Saclay, CNRS UMR 3348, 91401 Orsay, France
- Équipe Labellisée Ligue Contre le Cancer, 91401 Orsay, France
- Correspondence: (C.R.); (S.V.)
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20
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Mansilla-Soto J, Eyquem J, Haubner S, Hamieh M, Feucht J, Paillon N, Zucchetti AE, Li Z, Sjöstrand M, Lindenbergh PL, Saetersmoen M, Dobrin A, Maurin M, Iyer A, Garcia Angus A, Miele MM, Zhao Z, Giavridis T, van der Stegen SJC, Tamzalit F, Rivière I, Huse M, Hendrickson RC, Hivroz C, Sadelain M. HLA-independent T cell receptors for targeting tumors with low antigen density. Nat Med 2022; 28:345-352. [PMID: 35027758 PMCID: PMC9469647 DOI: 10.1038/s41591-021-01621-1] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/08/2021] [Indexed: 02/03/2023]
Abstract
Chimeric antigen receptors (CARs) are receptors for antigen that direct potent immune responses. Tumor escape associated with low target antigen expression is emerging as one potential limitation of their efficacy. Here we edit the TRAC locus in human peripheral blood T cells to engage cell-surface targets through their T cell receptor-CD3 complex reconfigured to utilize the same immunoglobulin heavy and light chains as a matched CAR. We demonstrate that these HLA-independent T cell receptors (HIT receptors) consistently afford high antigen sensitivity and mediate tumor recognition beyond what CD28-based CARs, the most sensitive design to date, can provide. We demonstrate that the functional persistence of HIT T cells can be augmented by constitutive coexpression of CD80 and 4-1BBL. Finally, we validate the increased antigen sensitivity afforded by HIT receptors in xenograft mouse models of B cell leukemia and acute myeloid leukemia, targeting CD19 and CD70, respectively. Overall, HIT receptors are well suited for targeting cell surface antigens of low abundance.
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Affiliation(s)
- Jorge Mansilla-Soto
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Immunology Program, Sloan Kettering Institute, New York, NY, USA.
| | - Justin Eyquem
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
- Department of Medicine, Division of Hemato-Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Sascha Haubner
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Mohamad Hamieh
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Judith Feucht
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
- Cluster of Excellence iFIT, University Children's Hospital Tübingen, Tübingen, Germany
| | - Noémie Paillon
- Institute Curie, Université PSL, U932 INSERM, Integrative Analysis of T cell Activation Team, Paris, France
| | - Andrés Ernesto Zucchetti
- Institute Curie, Université PSL, U932 INSERM, Integrative Analysis of T cell Activation Team, Paris, France
| | - Zhuoning Li
- Microchemistry and Proteomics Core Laboratory, Sloan Kettering Institute, New York, NY, USA
| | - Maria Sjöstrand
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Pieter L Lindenbergh
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Michelle Saetersmoen
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Anton Dobrin
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Mathieu Maurin
- Institute Curie, Université PSL, U932 INSERM, Integrative Analysis of T cell Activation Team, Paris, France
| | - Archana Iyer
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Andreina Garcia Angus
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Matthew M Miele
- Microchemistry and Proteomics Core Laboratory, Sloan Kettering Institute, New York, NY, USA
| | - Zeguo Zhao
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Theodoros Giavridis
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
- Mnemo Therapeutics, New York, NY, USA
| | - Sjoukje J C van der Stegen
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Fella Tamzalit
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Isabelle Rivière
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Cell Therapy and Cell Engineering Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Morgan Huse
- Immunology Program, Sloan Kettering Institute, New York, NY, USA
| | - Ronald C Hendrickson
- Microchemistry and Proteomics Core Laboratory, Sloan Kettering Institute, New York, NY, USA
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Claire Hivroz
- Institute Curie, Université PSL, U932 INSERM, Integrative Analysis of T cell Activation Team, Paris, France
| | - Michel Sadelain
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Immunology Program, Sloan Kettering Institute, New York, NY, USA.
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21
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He Y, Fang Y, Zhai B, Liu X, Zhu G, Zhou S, Xu Y, Wang X, Su W, Wang R. Gm40600 promotes CD4 + T-cell responses by interacting with Ahnak. Immunology 2021; 164:190-206. [PMID: 33987830 PMCID: PMC8358717 DOI: 10.1111/imm.13365] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 04/11/2021] [Accepted: 04/29/2021] [Indexed: 12/31/2022] Open
Abstract
It is important to characterize novel proteins involved in T- and B-cell responses. Our previous study demonstrated that a novel protein, Mus musculus Gm40600, reduced the proliferation of Mus musculus plasmablast (PB)-like SP 2/0 cells and B-cell responses induced in vitro by LPS. In the present study, we revealed that Gm40600 directly promoted CD4+ T-cell responses to indirectly up-regulate B-cell responses. Importantly, we found that CD4+ T-cell responses, including T-cell activation and differentiation and cytokine production, were increased in Gm40600 transgenic (Tg) mice and were reduced in Gm40600 knockout (KO) mice. Finally, we demonstrated that Gm40600 promoted the Ahnak-mediated calcium signalling pathway by interacting with Ahnak to maintain a cytoplasmic lateral location of Ahnak in CD4+ T cells. Collectively, our data suggest that Gm40600 promotes CD4+ T-cell activation to up-regulate the B-cell response via interacting with Ahnak to promote the calcium signalling pathway. The results suggest that targeting Gm40600 may be a means to control CD4+ T-cell-related diseases.
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Affiliation(s)
- Youdi He
- Beijing Institute of Brain DisordersLaboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
- Department of NeurologyBeijing Chaoyang HospitalCapital Medical UniversityBeijingChina
| | - Ying Fang
- Department of RheumatologyFirst Hospital of Jilin UniversityChangchunChina
| | - Bing Zhai
- Department of Geriatric HematologyChinese PLA General HospitalBeijingChina
| | - Xiaoling Liu
- Department of DermatologyFirst Medical Centre of ChinesePLA General HospitalBeijingChina
| | - Gaizhi Zhu
- Beijing Institute of Brain DisordersLaboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Shan Zhou
- Beijing Institute of Brain DisordersLaboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Yaqi Xu
- Beijing Institute of Brain DisordersLaboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Xiaoqian Wang
- Staidson (Beijing) Biopharmaceuticals Co. LtdBeijingChina
| | - Wenting Su
- Beijing Institute of Brain DisordersLaboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Renxi Wang
- Beijing Institute of Brain DisordersLaboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
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22
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Innate-like self-reactive B cells infiltrate human renal allografts during transplant rejection. Nat Commun 2021; 12:4372. [PMID: 34272370 PMCID: PMC8285506 DOI: 10.1038/s41467-021-24615-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 06/24/2021] [Indexed: 12/13/2022] Open
Abstract
Intrarenal B cells in human renal allografts indicate transplant recipients with a poor prognosis, but how these cells contribute to rejection is unclear. Here we show using single-cell RNA sequencing that intrarenal class-switched B cells have an innate cell transcriptional state resembling mouse peritoneal B1 or B-innate (Bin) cells. Antibodies generated by Bin cells do not bind donor-specific antigens nor are they enriched for reactivity to ubiquitously expressed self-antigens. Rather, Bin cells frequently express antibodies reactive with either renal-specific or inflammation-associated antigens. Furthermore, local antigens can drive Bin cell proliferation and differentiation into plasma cells expressing self-reactive antibodies. These data show a mechanism of human inflammation in which a breach in organ-restricted tolerance by infiltrating innate-like B cells drives local tissue destruction. Intrarenal B cells are indicative of poor prognosis in human renal allografts. Here the authors use single cell RNA sequencing to examine how intrarenal B cells contribute to renal rejection and find a population of innate B cells reactive to renal-specific or inflammation-associated antigens.
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23
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GABAergic signaling by cells of the immune system: more the rule than the exception. Cell Mol Life Sci 2021; 78:5667-5679. [PMID: 34152447 PMCID: PMC8316187 DOI: 10.1007/s00018-021-03881-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/17/2021] [Accepted: 06/11/2021] [Indexed: 11/23/2022]
Abstract
Gamma-aminobutyric acid (GABA) is best known as an essential neurotransmitter in the evolved central nervous system (CNS) of vertebrates. However, GABA antedates the development of the CNS as a bioactive molecule in metabolism and stress-coupled responses of prokaryotes, invertebrates and plants. Here, we focus on the emerging findings of GABA signaling in the mammalian immune system. Recent reports show that mononuclear phagocytes and lymphocytes, for instance dendritic cells, microglia, T cells and NK cells, express a GABAergic signaling machinery. Mounting evidence shows that GABA receptor signaling impacts central immune functions, such as cell migration, cytokine secretion, immune cell activation and cytotoxic responses. Furthermore, the GABAergic signaling machinery of leukocytes is implicated in responses to microbial infection and is co-opted by protozoan parasites for colonization of the host. Peripheral GABA signaling is also implicated in inflammatory conditions and diseases, such as type 1 diabetes, rheumatoid arthritis and cancer cell metastasis. Adding to its role in neurotransmission, growing evidence shows that the non-proteinogenic amino acid GABA acts as an intercellular signaling molecule in the immune system and, as an interspecies signaling molecule in host–microbe interactions. Altogether, the data raise the assumption of conserved GABA signaling in a broad range of mammalian cells and diversification of function in the immune system.
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24
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Li Y, Lv X, Chen H, Zhi Z, Wei Z, Wang B, Zhou L, Li H, Tang W. Peptide Derived from AHNAK Inhibits Cell Migration and Proliferation in Hirschsprung's Disease by Targeting the ERK1/2 Pathway. J Proteome Res 2021; 20:2308-2318. [PMID: 33853325 DOI: 10.1021/acs.jproteome.0c00811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Hirschsprung's disease (HSCR) is characterized by the lack of ganglion cells in the distal part of the digestive tract. It occurs due to migration disorders of enteric neural crest cells (ENCCs) from 5 to 12 weeks of embryonic development. More and more studies show that HSCR is a result of the interaction of multiple genes and the microenvironments, but its specific pathogenesis has not been fully elucidated. Studies have confirmed that many substances in the intestinal microenvironment, such as laminin and β1-integrin, play a vital regulatory role in cell growth and disease progression. In addition to these high-molecular-weight proteins, research on endogenous polypeptides derived from these proteins has been increasing in recent years. However, it is unclear whether these endogenous peptides have effects on the migration of ENCCs and thus participate in the occurrence of HSCR. Previously, our research group found that compared with the normal intestinal tissue, the expression of AHNAK protein in the stenosed intestinal tissue of HSCR patients was significantly upregulated, and overexpression of AHNAK could inhibit cell migration and proliferation. In this study, endogenous peptides were extracted from the normal control intestinal tissue and the stenosed HSCR intestinal tissue. The endogenous polypeptide expression profile was analyzed by liquid chromatography-mass spectrometry, and multiple peptides derived from AHNAK protein were found. We selected one of them, "EGPEVDVNLPK", for research. Because there is no uniform naming system, this peptide is temporarily named PDAHNAK (peptide derived from AHNAK). This project aims to clarify the potential role of PDAHNAK in the development of HSCR and to further understand its relationship with its precursor protein AHNAK and how they contribute to the development of HSCR.
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Affiliation(s)
- Yuhan Li
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210008, China.,Department of Pediatric Surgery, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiurui Lv
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210008, China.,School of Medicine & Dentistry, University of Rochester, Rochester 14642, United States
| | - Huan Chen
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210008, China.,State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Zhengke Zhi
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210008, China.,State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Zhonghong Wei
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Binyu Wang
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210008, China.,State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - LingLing Zhou
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Hongxing Li
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210008, China.,State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Weibing Tang
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing 210008, China.,State Key Laboratory of Reproductive Medicine, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China
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25
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Dong Q, Lunney JK, Lim KS, Nguyen Y, Hess AS, Beiki H, Rowland RRR, Walker K, Reecy JM, Tuggle CK, Dekkers JCM. Gene expression in tonsils in swine following infection with porcine reproductive and respiratory syndrome virus. BMC Vet Res 2021; 17:88. [PMID: 33618723 PMCID: PMC7901068 DOI: 10.1186/s12917-021-02785-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 02/02/2021] [Indexed: 12/18/2022] Open
Abstract
Background Porcine reproductive and respiratory syndrome (PRRS) is a threat to pig production worldwide. Our objective was to understand mechanisms of persistence of PRRS virus (PRRSV) in tonsil. Transcriptome data from tonsil samples collected at 42 days post infection (dpi) were generated by RNA-seq and NanoString on 51 pigs that were selected to contrast the two PRRSV isolates used, NVSL and KS06, high and low tonsil viral level at 42 dpi, and the favorable and unfavorable genotypes at a genetic marker (WUR) for the putative PRRSV resistance gene GBP5. Results The number of differentially expressed genes (DEGs) differed markedly between models with and without accounting for cell-type enrichments (CE) in the samples that were predicted from the RNA-seq data. This indicates that differences in cell composition in tissues that consist of multiple cell types, such as tonsil, can have a large impact on observed differences in gene expression. Based on both the NanoString and the RNA-seq data, KS06-infected pigs showed greater activation, or less inhibition, of immune response in tonsils at 42 dpi than NVSL-infected pigs, with and without accounting for CE. This suggests that the NVSL virus may be better than the KS06 virus at evading host immune response and persists in tonsils by weakening, or preventing, host immune responses. Pigs with high viral levels showed larger CE of immune cells than low viral level pigs, potentially to trigger stronger immune responses. Presence of high tonsil virus was associated with a stronger immune response, especially innate immune response through interferon signaling, but these differences were not significant when accounting for CE. Genotype at WUR was associated with different effects on immune response in tonsils of pigs during the persistence stage, depending on viral isolate and tonsil viral level. Conclusions Results of this study provide insights into the effects of PRRSV isolate, tonsil viral level, and WUR genotype on host immune response and into potential mechanisms of PRRSV persistence in tonsils that could be targeted to improve strategies to reduce viral rebreaks. Finally, to understand transcriptome responses in tissues that consist of multiple cell types, it is important to consider differences in cell composition. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-021-02785-1.
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Affiliation(s)
- Qian Dong
- Department of Animal Science, Iowa State University, Ames, Iowa, 50011, USA
| | | | - Kyu-Sang Lim
- Department of Animal Science, Iowa State University, Ames, Iowa, 50011, USA
| | - Yet Nguyen
- Department of Statistics, Iowa State University, Ames, Iowa, 50011, USA
| | - Andrew S Hess
- Department of Animal Science, Iowa State University, Ames, Iowa, 50011, USA
| | - Hamid Beiki
- Department of Animal Science, Iowa State University, Ames, Iowa, 50011, USA
| | - Raymond R R Rowland
- College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, 61802, USA
| | | | - James M Reecy
- Department of Animal Science, Iowa State University, Ames, Iowa, 50011, USA
| | | | - Jack C M Dekkers
- Department of Animal Science, Iowa State University, Ames, Iowa, 50011, USA.
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26
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Identification of a novel immune microenvironment signature predicting survival and therapeutic options for bladder cancer. Aging (Albany NY) 2020; 13:2780-2802. [PMID: 33408272 PMCID: PMC7880321 DOI: 10.18632/aging.202327] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 11/15/2020] [Indexed: 12/26/2022]
Abstract
Few studies have investigated the potential of tumor immune microenvironment genes as indicators of urinary bladder cancer. Here, we sought to establish an immune-related gene signature for determining prognosis and treatment options. We developed a ten-gene tumor immune microenvironment signature and evaluated its prognostic capacity on internal and external cohorts. Multivariate Cox regression and nomogram analyses revealed the prognostic risk model as an independent and effective indicator of prognosis. We observed lower proportions of CD8+ T cells, dendritic cells, regulatory T cells, higher proportions of macrophages and neutrophils in high UBC risk group. UBC tissues with high-risk score tend to exhibit high TP53 and RB1 mutation rates, high PD1/PD-L1 expression and poor-survival basal squamous subtypes, while those with low-risk score tend to have high FGFR3 mutation rates and luminal papillary subtypes. Unexpectedly, we found a highly significant positive correlation between glycolytic genes and risk score, highlighting metabolic competition in tumor ecosystem and potential therapeutic avenues. Our study thus revealed a tumor immune microenvironment signature for predicting prognostic and response to immune checkpoint inhibitors against bladder cancer. Prospective studies are required to further test the predictive capacity of this model.
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27
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Wang DW, Zheng HZ, Cha N, Zhang XJ, Zheng M, Chen MM, Tian LX. Down-Regulation of AHNAK2 Inhibits Cell Proliferation, Migration and Invasion Through Inactivating the MAPK Pathway in Lung Adenocarcinoma. Technol Cancer Res Treat 2020; 19:1533033820957006. [PMID: 33000678 PMCID: PMC7533926 DOI: 10.1177/1533033820957006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
AHNAK nucleoprotein 2 (AHNAK2) has been emerged as a crucial protein for neuroblast differentiation and cell migration, thereby involving in the development of various cancers. However, the specific molecular mechanism of AHNAK2 in lung adenocarcinoma is inconclusive. By accessing to the Oncomine dataset and GEPIA website, a higher expression level of AHNAK2 was observed in lung adenocarcinoma tissue samples. Overall survival (OS) curve plotted by Kaplan-Meier method showed that up-regulation of AHNAK2 was related with poor prognosis of lung adenocarcinoma patients. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) analysis and western blot were conducted to examine the expression level of genes in lung adenocarcinoma cells. Through functional in vitro experiments, cell proliferation, migration and invasion were all suppressed after AHNAK2 knockdown using Cell counting kit-8 (CCK-8) assay, wound-healing and transwell analysis. Reduction of AHNAK2 decreased the apoptosis rate using flow cytometry analysis. Moreover, the key markers of MAPK pathway, p-MEK, p-ERK and p-P90RSK were decreased due to the transfection of si-AHNAK2 in A549 cells. U0126, a MEK inhibitor, showed the similar effects on MAPK-related protein levels with si-AHNAK2. To sum up, AHNAK2 is significantly increased in lung adenocarcinoma and plays a carcinogenic role by activating the MAPK signaling pathway, providing a novel insight and raising possibility for lung adenocarcinoma treatment.
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Affiliation(s)
- Dong-Wei Wang
- Department of Pathology, Changchun Obstetrics-Gynecology Hospital, Nanguan District, Changchun, Jilin, China
| | - Hai-Zheng Zheng
- Department of pathogen teaching and research of Changchun Medical College, Changchun Economic and Technological Development Zone, Changchun, Jilin, China
| | - Na Cha
- Department of Pathology, Changchun Obstetrics-Gynecology Hospital, Nanguan District, Changchun, Jilin, China
| | - Xiao-Jie Zhang
- Department of Obstetrics and Gynecology, Changchun Obstetrics-Gynecology Hospital, Nanguan District, Changchun, Jilin, China
| | - Min Zheng
- Department of Obstetrics and Gynecology, Changchun Obstetrics-Gynecology Hospital, Nanguan District, Changchun, Jilin, China
| | - Ming-Ming Chen
- Department of Obstetrics and Gynecology, Changchun Obstetrics-Gynecology Hospital, Nanguan District, Changchun, Jilin, China
| | - Li-Xiang Tian
- Department of Pathology, Changchun Obstetrics-Gynecology Hospital, Nanguan District, Changchun, Jilin, China
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28
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Cimas FJ, Manzano A, Baliu-Piqué M, García-Gil E, Pérez-Segura P, Nagy Á, Pandiella A, Győrffy B, Ocana A. Genomic Mapping Identifies Mutations in RYR2 and AHNAK as Associated with Favorable Outcome in Basal-Like Breast Tumors Expressing PD1/PD-L1. Cancers (Basel) 2020; 12:cancers12082243. [PMID: 32796628 PMCID: PMC7464853 DOI: 10.3390/cancers12082243] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/30/2020] [Accepted: 08/06/2020] [Indexed: 12/13/2022] Open
Abstract
Treatment with anti-PD-L1 antibodies has shown efficacy in basal-like breast cancer. In this context, identification of pre-activated immune tumors is a main goal. Here we explore mutations in PD1 and PD-L1 high-expressing tumors to identify genomic correlates associated with outcome. To do so, RNA-seq and mutation data from 971 breast cancer patients from the TCGA dataset were used to identify most prevalent mutations in patients with high levels of PD1 and PD-L1. Transcriptomic signatures associated with the selected mutations were identified and analyzed in terms of outcome and immune cell infiltration. We identified co-occurrent mutations in RYR2 and AHNAK in 8% and 5% of basal-like tumors respectively, which conferred good prognosis in patients with high expression of PD1 and PD-L1 genes. The transcriptomic signature associated with these mutations, composed of CXCL9, GBP5, C1QA, IL2RG, CSF2RB, IDO1 and LAG3 genes, also conferred good prognosis and correlated with immune infiltrations within the tumors. The joint signature classified patients with favorable relapse-free survival (HR: 0.28; CI: 0.2–0.38; p = 1.7 × 10−16) and overall survival (HR: 0.18; CI: 0.09–0.34; p = 6.8 × 10−9), showing a stronger prediction capacity than previous reported signatures. In conclusion, we describe two novel mutations and their transcriptomic signature, both associated with a favorable outcome and immune infiltrates in PD1 and PD-L1 high-expressing basal-like tumors.
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Affiliation(s)
- Francisco J. Cimas
- Translational Oncology Laboratory, Centro Regional de Investigaciones Biomedicas, Castilla-La Mancha University (CRIB-UCLM), 02008 Albacete, Spain;
- Translational Research Unit, Albacete University Hospital, 02008 Albacete, Spain;
| | - Arancha Manzano
- Experimental Therapeutics Unit, Hospital Clínico Universitario San Carlos, IDISSC and CIBERONC, 28040 Madrid, Spain; (A.M.); (M.B.-P.); (P.P.-S.)
| | - Mariona Baliu-Piqué
- Experimental Therapeutics Unit, Hospital Clínico Universitario San Carlos, IDISSC and CIBERONC, 28040 Madrid, Spain; (A.M.); (M.B.-P.); (P.P.-S.)
| | - Elena García-Gil
- Translational Research Unit, Albacete University Hospital, 02008 Albacete, Spain;
| | - Pedro Pérez-Segura
- Experimental Therapeutics Unit, Hospital Clínico Universitario San Carlos, IDISSC and CIBERONC, 28040 Madrid, Spain; (A.M.); (M.B.-P.); (P.P.-S.)
| | - Ádám Nagy
- Department of Bioinformatics, Semmelweis University, H-1094 Budapest, Hungary; (A.N.); (B.G.)
- 2nd Department of Pediatrics, Semmelweis University, H-1094 Budapest, Hungary
- TTK Cancer Biomarker Research Group, Institute of Enzymology, H-1117 Budapest, Hungary
| | - Atanasio Pandiella
- Instituto de Biología Molecular y Celular del Cáncer and CIBERONC, CSIC, 37007 Salamanca, Spain;
| | - Balázs Győrffy
- Department of Bioinformatics, Semmelweis University, H-1094 Budapest, Hungary; (A.N.); (B.G.)
- 2nd Department of Pediatrics, Semmelweis University, H-1094 Budapest, Hungary
- TTK Cancer Biomarker Research Group, Institute of Enzymology, H-1117 Budapest, Hungary
| | - Alberto Ocana
- Translational Oncology Laboratory, Centro Regional de Investigaciones Biomedicas, Castilla-La Mancha University (CRIB-UCLM), 02008 Albacete, Spain;
- Translational Research Unit, Albacete University Hospital, 02008 Albacete, Spain;
- Experimental Therapeutics Unit, Hospital Clínico Universitario San Carlos, IDISSC and CIBERONC, 28040 Madrid, Spain; (A.M.); (M.B.-P.); (P.P.-S.)
- Correspondence:
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Ramírez-Moreno IG, Ibarra-Sánchez A, Castillo-Arellano JI, Blank U, González-Espinosa C. Mast Cells Localize in Hypoxic Zones of Tumors and Secrete CCL-2 under Hypoxia through Activation of L-Type Calcium Channels. THE JOURNAL OF IMMUNOLOGY 2020; 204:1056-1068. [PMID: 31900336 DOI: 10.4049/jimmunol.1801430] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 12/05/2019] [Indexed: 01/19/2023]
Abstract
Hypoxia is a condition that together with low pH, high amounts of reactive oxygen species (ROS), and increased adenosine levels characterize tumor microenvironment. Mast cells (MCs) are part of tumor microenvironment, but the effect of hypoxia on the production of MC-derived cytokines has not been fully described. Using the hypoxia marker pimonidazole in vivo, we found that MCs were largely located in the low-oxygen areas within B16-F1 mice melanoma tumors. In vitro, hypoxia promoted ROS production, a ROS-dependent increase of intracellular calcium, and the production of MCP 1 (CCL-2) in murine bone marrow-derived MCs. Hypoxia-induced CCL-2 production was sensitive to the antioxidant trolox and to nifedipine, a blocker of L-type voltage-dependent Ca2+ channels (LVDCCs). Simultaneously with CCL-2 production, hypoxia caused the ROS-dependent glutathionylation and membrane translocation of the α1c subunit of Cav1.2 LVDCCs. Relationship between ROS production, calcium rise, and CCL-2 synthesis was also observed when cells were treated with H2O2 In vivo, high CCL-2 production was detected on hypoxic zones of melanoma tumors (where tryptase-positive MCs were also found). Pimonidazole and CCL-2 positive staining diminished when B16-F1 cell-inoculated animals were treated with trolox, nifedipine, or the adenosine receptor 2A antagonist KW6002. Our results show that MCs are located preferentially in hypoxic zones of melanoma tumors, hypoxia-induced CCL-2 production in MCs requires calcium rise mediated by glutathionylation and membrane translocation of LVDCCs, and this mechanism of CCL-2 synthesis seems to operate in other cells inside melanoma tumors, with the participation of the adenosine receptor 2A.
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Affiliation(s)
- Itzel G Ramírez-Moreno
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados (Cinvestav), Tlalpan, 14330 Mexico City, Mexico
| | - Alfredo Ibarra-Sánchez
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados (Cinvestav), Tlalpan, 14330 Mexico City, Mexico
| | - Jorge Ivan Castillo-Arellano
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Mexico City, Mexico; and
| | - Ulrich Blank
- Inserm U1149, CNRS ERL 8252, Université Paris Diderot, Sorbonne Paris Cité, Faculté de Médecine, Site X. bichat, Laboratorie d'excellence INFLAMEX, 75018 Paris, France
| | - Claudia González-Espinosa
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados (Cinvestav), Tlalpan, 14330 Mexico City, Mexico;
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30
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Selvaraj C, Selvaraj G, Kaliamurthi S, Cho WC, Wei DQ, Singh SK. Ion Channels as Therapeutic Targets for Type 1 Diabetes Mellitus. Curr Drug Targets 2020; 21:132-147. [PMID: 31538892 DOI: 10.2174/1389450119666190920152249] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/06/2019] [Accepted: 08/07/2019] [Indexed: 02/07/2023]
Abstract
Ion channels are integral proteins expressed in almost all living cells and are involved in muscle contraction and nutrient transport. They play a critical role in the normal functioning of the excitable tissues of the nervous system and regulate the action potential and contraction events. Dysfunction of genes encodes ion channel proteins, which disrupt the channel function and lead to a number of diseases, among which is type 1 diabetes mellitus (T1DM). Therefore, understanding the complex mechanism of ion channel receptors is necessary to facilitate the diagnosis and management of treatment. In this review, we summarize the mechanism of important ion channels and their potential role in the regulation of insulin secretion along with the limitations of ion channels as therapeutic targets. Furthermore, we discuss the recent investigations of the mechanism regulating the ion channels in pancreatic beta cells, which suggest that ion channels are active participants in the regulation of insulin secretion.
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Affiliation(s)
- Chandrabose Selvaraj
- Department of Bioinformatics, Computer-Aided Drug Design, and Molecular Modeling Lab, Science Block, Alagappa University, Karaikudi, Tamil Nadu, 630004, India
| | - Gurudeeban Selvaraj
- Center of Interdisciplinary Sciences-Computational Life Sciences, College of Food Science and Engineering, Henan University of Technology, Zhengzhou, 450001, China
- Peng Cheng Laboratory, Vanke Cloud City Phase I Building 8, Xili Street, Nanshan District, Shenzhen, Guangdong, 518055, China
| | - Satyavani Kaliamurthi
- Center of Interdisciplinary Sciences-Computational Life Sciences, College of Food Science and Engineering, Henan University of Technology, Zhengzhou, 450001, China
- Peng Cheng Laboratory, Vanke Cloud City Phase I Building 8, Xili Street, Nanshan District, Shenzhen, Guangdong, 518055, China
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong
| | - Dong-Qing Wei
- Center of Interdisciplinary Sciences-Computational Life Sciences, College of Food Science and Engineering, Henan University of Technology, Zhengzhou, 450001, China
- Peng Cheng Laboratory, Vanke Cloud City Phase I Building 8, Xili Street, Nanshan District, Shenzhen, Guangdong, 518055, China
- Department of Bioinformatics, The State Key Laboratory of Microbial Metabolism, College of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Sanjeev Kumar Singh
- Department of Bioinformatics, Computer-Aided Drug Design, and Molecular Modeling Lab, Science Block, Alagappa University, Karaikudi, Tamil Nadu, 630004, India
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31
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Jin J, Bhatti DL, Lee KW, Medrihan L, Cheng J, Wei J, Zhong P, Yan Z, Kooiker C, Song C, Ahn JH, Obermair GJ, Lee A, Gresack J, Greengard P, Kim Y. Ahnak scaffolds p11/Anxa2 complex and L-type voltage-gated calcium channel and modulates depressive behavior. Mol Psychiatry 2020; 25:1035-1049. [PMID: 30760886 PMCID: PMC6692256 DOI: 10.1038/s41380-019-0371-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 12/14/2018] [Accepted: 01/11/2019] [Indexed: 01/05/2023]
Abstract
Genetic polymorphisms of the L-type voltage-gated calcium channel (VGCC) are associated with psychiatric disorders including major depressive disorder. Alterations of S100A10 (p11) level are also implicated in the etiology of major depressive disorder. However, the existence of an endogenous regulator in the brain regulating p11, L-type VGCC, and depressive behavior has not been known. Here we report that Ahnak, whose function in the brain has been obscure, stabilizes p11 and Anxa2 proteins in the hippocampus and prefrontal cortex in the rodent brain. Protein levels of Ahnak, p11, and Anxa2 are highly and positively correlated in the brain. Together these data suggest the existence of an Ahnak/p11/Anxa2 protein complex. Ahnak is expressed in p11-positive as well as p11-negative neurons. Ahnak, through its N-terminal region, scaffolds the L-type pore-forming α1 subunit and, through its C-terminal region, scaffolds the β subunit of VGCC and the p11/Anxa2 complex. Cell surface expression of the α1 subunits and L-type calcium current are significantly reduced in primary cultures of Ahnak knockout (KO) neurons compared to wild-type controls. A decrease in the L-type calcium influx is observed in both glutamatergic neurons and parvalbumin (PV) GABAergic interneurons of Ahnak KO mice. Constitutive Ahnak KO mice or forebrain glutamatergic neuron-selective Ahnak KO mice display a depression-like behavioral phenotype similar to that of constitutive p11 KO mice. In contrast, PV interneuron-selective Ahnak KO mice display an antidepressant-like behavioral phenotype. Our results demonstrate L-type VGCC as an effector of the Ahnak/p11/Anxa2 complex, revealing a novel molecular connection involved in the control of depressive behavior.
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Affiliation(s)
- Junghee Jin
- 0000 0001 2166 1519grid.134907.8Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY 10065 USA
| | - Dionnet L. Bhatti
- 0000 0001 2166 1519grid.134907.8Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY 10065 USA
| | - Ko-Woon Lee
- 0000 0001 2166 1519grid.134907.8Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY 10065 USA
| | - Lucian Medrihan
- 0000 0001 2166 1519grid.134907.8Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY 10065 USA
| | - Jia Cheng
- 0000 0001 2166 1519grid.134907.8Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY 10065 USA
| | - Jing Wei
- 0000 0004 1936 9887grid.273335.3Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY USA
| | - Ping Zhong
- 0000 0004 1936 9887grid.273335.3Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY USA
| | - Zhen Yan
- 0000 0004 1936 9887grid.273335.3Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY USA
| | - Cassandra Kooiker
- 0000 0001 2166 1519grid.134907.8Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY 10065 USA
| | - Claire Song
- 0000 0001 2166 1519grid.134907.8Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY 10065 USA
| | - Jung-Hyuck Ahn
- 0000 0001 2171 7754grid.255649.9Department of Biochemistry, Ewha Womans University, Seoul, South Korea
| | - Gerald J. Obermair
- 0000 0000 8853 2677grid.5361.1Division of Physiology, Medical University Innsbruck, 6020 Innsbruck, Austria
| | - Amy Lee
- 0000 0004 1936 8294grid.214572.7Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA USA
| | - Jodi Gresack
- 0000 0001 2166 1519grid.134907.8Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY 10065 USA
| | - Paul Greengard
- 0000 0001 2166 1519grid.134907.8Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY 10065 USA
| | - Yong Kim
- Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY, 10065, USA.
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32
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Fenninger F, Jefferies WA. What's Bred in the Bone: Calcium Channels in Lymphocytes. THE JOURNAL OF IMMUNOLOGY 2019; 202:1021-1030. [PMID: 30718290 DOI: 10.4049/jimmunol.1800837] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 08/22/2018] [Indexed: 12/30/2022]
Abstract
Calcium (Ca2+) is an important second messenger in lymphocytes and is essential in regulating various intracellular pathways that control critical cell functions. Ca2+ channels are located in the plasma membrane and intracellular membranes, facilitating Ca2+ entry into the cytoplasm. Upon Ag receptor stimulation, Ca2+ can enter the lymphocyte via the Ca2+ release-activated Ca2+ channel found in the plasma membrane. The increase of cytosolic Ca2+ modulates signaling pathways, resulting in the transcription of target genes implicated in differentiation, activation, proliferation, survival, and apoptosis of lymphocytes. Along with Ca2+ release-activated Ca2+ channels, several other channels have been found in the membranes of T and B lymphocytes contributing to key cellular events. Among them are the transient receptor potential channels, the P2X receptors, voltage-dependent Ca2+ channels, and the inositol 1,4,5-trisphosphate receptor as well as the N-methyl-d-aspartate receptors. In this article, we review the contributions of these channels to mediating Ca2+ currents that drive specific lymphocyte functions.
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Affiliation(s)
- Franz Fenninger
- Michael Smith Laboratories, University of British Columbia, Vancouver V6T 1Z4, British Columbia, Canada.,Department of Microbiology and Immunology, University of British Columbia, Vancouver V6T 1Z3, British Columbia, Canada
| | - Wilfred A Jefferies
- Michael Smith Laboratories, University of British Columbia, Vancouver V6T 1Z4, British Columbia, Canada; .,Department of Microbiology and Immunology, University of British Columbia, Vancouver V6T 1Z3, British Columbia, Canada.,Vancouver Prostate Centre, University of British Columbia, Vancouver V6H 3Z6, British Columbia, Canada.,Centre for Blood Research, University of British Columbia, Vancouver V6T 1Z4, British Columbia, Canada.,The Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver V6T 1Z3, British Columbia, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver V6T 1Z4, British Columbia, Canada; and.,Department of Zoology, University of British Columbia, Vancouver V6T 1Z4, British Columbia, Canada
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33
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Jiang SH, Athanasopoulos V, Ellyard JI, Chuah A, Cappello J, Cook A, Prabhu SB, Cardenas J, Gu J, Stanley M, Roco JA, Papa I, Yabas M, Walters GD, Burgio G, McKeon K, Byers JM, Burrin C, Enders A, Miosge LA, Canete PF, Jelusic M, Tasic V, Lungu AC, Alexander SI, Kitching AR, Fulcher DA, Shen N, Arsov T, Gatenby PA, Babon JJ, Mallon DF, de Lucas Collantes C, Stone EA, Wu P, Field MA, Andrews TD, Cho E, Pascual V, Cook MC, Vinuesa CG. Functional rare and low frequency variants in BLK and BANK1 contribute to human lupus. Nat Commun 2019; 10:2201. [PMID: 31101814 PMCID: PMC6525203 DOI: 10.1038/s41467-019-10242-9] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 04/25/2019] [Indexed: 11/21/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is the prototypic systemic autoimmune disease. It is thought that many common variant gene loci of weak effect act additively to predispose to common autoimmune diseases, while the contribution of rare variants remains unclear. Here we describe that rare coding variants in lupus-risk genes are present in most SLE patients and healthy controls. We demonstrate the functional consequences of rare and low frequency missense variants in the interacting proteins BLK and BANK1, which are present alone, or in combination, in a substantial proportion of lupus patients. The rare variants found in patients, but not those found exclusively in controls, impair suppression of IRF5 and type-I IFN in human B cell lines and increase pathogenic lymphocytes in lupus-prone mice. Thus, rare gene variants are common in SLE and likely contribute to genetic risk. Function-altering variants of immune-related genes cause rare autoimmune syndromes, whereas their contribution to common autoimmune diseases remains uncharacterized. Here the authors show that rare variants of lupus-associated genes are present in the majority of lupus patients and healthy controls, but only the variants found in lupus patients alter gene function.
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Affiliation(s)
- Simon H Jiang
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia. .,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia. .,Department of Renal Medicine, The Canberra Hospital, Garran, 2601, ACT, Australia.
| | - Vicki Athanasopoulos
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia
| | - Julia I Ellyard
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia
| | - Aaron Chuah
- Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,Genome Informatics Laboratory, John Curtin School of Medical Research, Acton, 2601, ACT, Australia
| | - Jean Cappello
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia
| | - Amelia Cook
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia
| | - Savit B Prabhu
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,Paediatric Biology Center, Translational Health Science and Technology Institute, Faridabad, 121001, Haryana, India
| | | | - Jinghua Gu
- Baylor Medical Institute, Houston, 77030, Texas, USA
| | - Maurice Stanley
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia
| | - Jonathan A Roco
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia
| | - Ilenia Papa
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia
| | - Mehmet Yabas
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Department of Genetics and Bioengineering, Trakya University, Edirne, 22030, Turkey
| | - Giles D Walters
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,Department of Renal Medicine, The Canberra Hospital, Garran, 2601, ACT, Australia
| | - Gaetan Burgio
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia
| | - Kathryn McKeon
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia
| | - James M Byers
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia
| | - Charlotte Burrin
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia
| | - Anselm Enders
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia
| | - Lisa A Miosge
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia
| | - Pablo F Canete
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia
| | - Marija Jelusic
- Department of Paediatric Rheumatology and Immunology, University of Zagreb School of Medicine, Zagreb, 10000, Croatia
| | - Velibor Tasic
- University Children's Hospital, Medical School, Skopje, 1000, Macedonia
| | - Adrian C Lungu
- Department of Pediatric Nephrology, Fundeni Clinical Institute, Bucharest, 022328, Romania
| | - Stephen I Alexander
- Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,Westmead Children's Hospital, Westmead, 2145, NSW, Australia
| | - Arthur R Kitching
- Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,Centre for Inflammatory Diseases, Department of Medicine, Monash University, Clayton, 3168, VIC, Australia
| | - David A Fulcher
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,Department of Immunology, The Canberra Hospital, Garran, 2601, ACT, Australia
| | - Nan Shen
- China Australia Centre for Personalised Immunology, Renji Hospital Shanghai, JiaoTong University Shanghai, Huangpu Qu, 200333, China
| | - Todor Arsov
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,China Australia Centre for Personalised Immunology, Renji Hospital Shanghai, JiaoTong University Shanghai, Huangpu Qu, 200333, China
| | - Paul A Gatenby
- Department of Immunology, The Canberra Hospital, Garran, 2601, ACT, Australia
| | - Jeff J Babon
- Walter and Eliza Hall Institute, Parkville, 3052, VIC, Australia
| | - Dominic F Mallon
- Immunology PathWest Fiona Stanley Hospital, Murdoch, 6150, WA, Australia
| | | | - Eric A Stone
- Research School of Biology and Research School of Finance, Actuarial Studies and Statistics, Acton, 2601, ACT, Australia
| | - Philip Wu
- Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,Australian Phenomics Facility, ANU, Acton, 2601, ACT, Australia
| | - Matthew A Field
- Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,Genome Informatics Laboratory, John Curtin School of Medical Research, Acton, 2601, ACT, Australia
| | - Thomas D Andrews
- Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,Genome Informatics Laboratory, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,National Computational Infrastructure, ANU, Acton, 2601, ACT, Australia
| | - Eun Cho
- Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,Genome Informatics Laboratory, John Curtin School of Medical Research, Acton, 2601, ACT, Australia
| | | | - Matthew C Cook
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia.,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia.,Department of Immunology, The Canberra Hospital, Garran, 2601, ACT, Australia.,China Australia Centre for Personalised Immunology, Renji Hospital Shanghai, JiaoTong University Shanghai, Huangpu Qu, 200333, China
| | - Carola G Vinuesa
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Acton, 2601, ACT, Australia. .,Centre for Personalised Immunology, NHMRC Centre for Research Excellence, Acton, 2601, Australia. .,China Australia Centre for Personalised Immunology, Renji Hospital Shanghai, JiaoTong University Shanghai, Huangpu Qu, 200333, China.
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34
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Choi EW, Lee HW, Lee JS, Kim IY, Shin JH, Seong JK. Ahnak-knockout mice show susceptibility to Bartonella henselae infection because of CD4+ T cell inactivation and decreased cytokine secretion. BMB Rep 2019. [PMID: 30940323 PMCID: PMC6507843 DOI: 10.5483/bmbrep.2019.52.4.310] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The present study evaluated the role of AHNAK in Bartonella henselae infection. Mice were intraperitoneally inoculated with 2 × 108 colony-forming units of B. henselae Houston-1 on day 0 and subsequently on day 10. Blood and tissue samples of the mice were collected 8 days after the final B. henselae injection. B. henselae infection in the liver of Ahnak-knockout and wild-type mice was confirmed by performing polymerase chain reaction, with Bartonella adhesion A as a marker. The proportion of B. henselae-infected cells increased in the liver of the Ahnak-knockout mice. Granulomatous lesions, inflammatory cytokine levels, and liver enzyme levels were also higher in the liver of the Ahnak-knockout mice than in the liver of the wild-type mice, indicating that Ahnak deletion accelerated B. henselae infection. The proportion of CD4+interferon-γ (IFN-γ)+ and CD4+interleukin (IL)-4+ cells was significantly lower in the B. henselae-infected Ahnak-knockout mice than in the B. henselae-infected wild-type mice. In vitro stimulation with B. henselae significantly increased IFN-γ and IL-4 secretion in the splenocytes obtained from the B. henselae-infected wild-type mice, but did not increase IFN-γ and IL-4 secretion in the splenocytes obtained from the B. henselae-infected Ahnak-KO mice. In contrast, IL-1α, IL-1β, IL-6, IL-10, RANTES, and tumor necrosis factor-α secretion was significantly elevated in the splenocytes obtained from both B. henselae-infected wild-type and Ahnak-knockout mice. These results indicate that Ahnak deletion promotes B. henselae infection. Impaired IFN-γ and IL-4 secretion in the Ahnak-knockout mice suggests the impairment of Th1 and Th2 immunity in these mice.
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Affiliation(s)
- Eun Wha Choi
- Department of Veterinary Clinical Pathology, College of Veterinary Medicine & Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Korea
- Laboratory Animal Research Center, Samsung Biomedical Research Institute, Samsung Medical Center, Seoul 06351, Korea
| | - Hee Woo Lee
- Institute of Research and Development, Chaon Corp., Seongnam 13493, Korea
| | - Jun Sik Lee
- Department of Biology, Immunology Research Lab., College of Natural Sciences, Chosun University, Gwangju 61452, Korea
| | - Il Yong Kim
- Laboratory of Developmental Biology and Genomics, BK21 Plus Program for Advanced Veterinary Science, Research Institute for Veterinary Science, College of Veterinary Medicine, and Korea Mouse Phenotyp
| | - Jae Hoon Shin
- Laboratory of Developmental Biology and Genomics, BK21 Plus Program for Advanced Veterinary Science, Research Institute for Veterinary Science, College of Veterinary Medicine, and Korea Mouse Phenotyp
| | - Je Kyung Seong
- Laboratory of Developmental Biology and Genomics, BK21 Plus Program for Advanced Veterinary Science, Research Institute for Veterinary Science, College of Veterinary Medicine, and Korea Mouse Phenotyp
- Interdiscplinary Program for Bioinformatics, Seoul National University, Seoul 08826, Korea
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35
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Peng R, Zhang PF, Yang X, Wei CY, Huang XY, Cai JB, Lu JC, Gao C, Sun HX, Gao Q, Bai DS, Shi GM, Ke AW, Fan J. Overexpression of RNF38 facilitates TGF-β signaling by Ubiquitinating and degrading AHNAK in hepatocellular carcinoma. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:113. [PMID: 30836988 PMCID: PMC6402116 DOI: 10.1186/s13046-019-1113-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 02/18/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND RING finger protein 38 (RNF38), a member of the RNF protein family, has just emerged as a vital driver of cancer progression. However, the oncogenic mechanisms of RNF38 remain unexplored. METHODS Using frozen tumor tissue and tissue microarray from hepatocellular carcinoma (HCC) patients, we tried to probe the expression of RNF38 in HCC and its clinical value. Then the biological functions of RNF38 were analyzed in vivo and vitro. Stable isotope labeling with amino acids (SILAC) in cell culture and co-immunoprecipitation proteomic analyses were combined to reveal the potential mechanism of RNF38 in HCC progression. RESULTS We report that RNF38 expression was markedly higher in HCC tissues than in peritumor tissues. Correspondingly, RNF38 overexpression promoted the HCC cell migration and invasion and inhibited apoptosis both in vitro and in vivo. And elevated RNF38 expression induced HCC cell epithelial-mesenchymal transition by facilitating transforming growth factor-β (TGF-β) signaling via ubiquitinating and degrading neuroblast differentiation-associated protein (AHNAK), a well-established inhibitor of TGF-β signaling. Furthermore, AHNAK interference restored the HCC cell invasion and metastasis deprived by RNF38 downregulation. Clinically, elevated RNF38 and transforming growth factor beta receptor 1 (TGFBR1) expression was related to short overall survival (OS) and high cumulative recurrence rates in HCC patients. CONCLUSIONS High levels of RNF38 promote HCC by facilitating TGF-β signaling and are a novel marker for predicting the prognosis of HCC patients and a potential therapeutic target in HCC.
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Affiliation(s)
- Rui Peng
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China.,Clinical Medical College, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Peng-Fei Zhang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China.,Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200031, China
| | - Xuan Yang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Chuan-Yuan Wei
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Xiao-Yong Huang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Jia-Bin Cai
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Jia-Cheng Lu
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Chao Gao
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Hai-Xiang Sun
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Qiang Gao
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Dou-Sheng Bai
- Clinical Medical College, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Guo-Ming Shi
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China.
| | - Ai-Wu Ke
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China.
| | - Jia Fan
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China. .,Cancer Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, 200031, People's Republic of China.
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Sundararaj S, Shishmarev D, Lin Y, Aditya S, Casarotto MG. 1H, 13C and 15N backbone NMR chemical shift assignments of the C-terminal P4 domain of Ahnak. BIOMOLECULAR NMR ASSIGNMENTS 2018; 12:253-257. [PMID: 29594929 DOI: 10.1007/s12104-018-9818-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 03/26/2018] [Indexed: 06/08/2023]
Abstract
Ahnak is a ~ 700 kDa polypeptide that was originally identified as a tumour-related nuclear phosphoprotein, but later recognized to play a variety of diverse physiological roles related to cell architecture and migration. A critical function of Ahnak is modulation of Ca2+ signaling in cardiomyocytes by interacting with the β subunit of the L-type Ca2+ channel (CaV1.2). Previous studies have identified the C-terminal region of Ahnak, designated as P3 and P4 domains, as a key mediator of its functional activity. We report here the nearly complete 1H, 13C and 15N backbone NMR chemical shift assignments of the 11 kDa C-terminal P4 domain of Ahnak. This study lays the foundations for future investigations of functional dynamics, structure determination and interaction site mapping of the CaV1.2-Ahnak complex.
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Affiliation(s)
- Srinivasan Sundararaj
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia
| | - Dmitry Shishmarev
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia.
| | - Yiechang Lin
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia
| | - Shouvik Aditya
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia
| | - Marco G Casarotto
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia.
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37
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Salter AI, Ivey RG, Kennedy JJ, Voillet V, Rajan A, Alderman EJ, Voytovich UJ, Lin C, Sommermeyer D, Liu L, Whiteaker JR, Gottardo R, Paulovich AG, Riddell SR. Phosphoproteomic analysis of chimeric antigen receptor signaling reveals kinetic and quantitative differences that affect cell function. Sci Signal 2018; 11:11/544/eaat6753. [PMID: 30131370 DOI: 10.1126/scisignal.aat6753] [Citation(s) in RCA: 304] [Impact Index Per Article: 50.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chimeric antigen receptors (CARs) link an antigen recognition domain to intracellular signaling domains to redirect T cell specificity and function. T cells expressing CARs with CD28/CD3ζ or 4-1BB/CD3ζ signaling domains are effective at treating refractory B cell malignancies but exhibit differences in effector function, clinical efficacy, and toxicity that are assumed to result from the activation of divergent signaling cascades. We analyzed stimulation-induced phosphorylation events in primary human CD8+ CD28/CD3ζ and 4-1BB/CD3ζ CAR T cells by mass spectrometry and found that both CAR constructs activated similar signaling intermediates. Stimulation of CD28/CD3ζ CARs activated faster and larger-magnitude changes in protein phosphorylation, which correlated with an effector T cell-like phenotype and function. In contrast, 4-1BB/CD3ζ CAR T cells preferentially expressed T cell memory-associated genes and exhibited sustained antitumor activity against established tumors in vivo. Mutagenesis of the CAR CD28 signaling domain demonstrated that the increased CD28/CD3ζ CAR signal intensity was partly related to constitutive association of Lck with this domain in CAR complexes. Our data show that CAR signaling pathways cannot be predicted solely by the domains used to construct the receptor and that signal strength is a key determinant of T cell fate. Thus, tailoring CAR design based on signal strength may lead to improved clinical efficacy and reduced toxicity.
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Affiliation(s)
- Alexander I Salter
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Richard G Ivey
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Jacob J Kennedy
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Valentin Voillet
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Anusha Rajan
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Eva J Alderman
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Uliana J Voytovich
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Chenwei Lin
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Daniel Sommermeyer
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Lingfeng Liu
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Jeffrey R Whiteaker
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Raphael Gottardo
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Amanda G Paulovich
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Stanley R Riddell
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA. .,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.,Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA
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Rosa N, Triffaux E, Robert V, Mars M, Klein M, Bouchaud G, Canivet A, Magnan A, Guéry JC, Pelletier L, Savignac M. The β and α2δ auxiliary subunits of voltage-gated calcium channel 1 (Ca v1) are required for T H2 lymphocyte function and acute allergic airway inflammation. J Allergy Clin Immunol 2017; 142:892-903.e8. [PMID: 29129580 DOI: 10.1016/j.jaci.2017.09.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 08/04/2017] [Accepted: 09/08/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND T lymphocytes express not only cell membrane ORAI calcium release-activated calcium modulator 1 but also voltage-gated calcium channel (Cav) 1 channels. In excitable cells these channels are composed of the ion-forming pore α1 and auxiliary subunits (β and α2δ) needed for proper trafficking and activation of the channel. Previously, we disclosed the role of Cav1.2 α1 in mouse and human TH2 but not TH1 cell functions and showed that knocking down Cav1 α1 prevents experimental asthma. OBJECTIVE We investigated the role of β and α2δ auxiliary subunits on Cav1 α1 function in TH2 lymphocytes and on the development of acute allergic airway inflammation. METHODS We used Cavβ antisense oligonucleotides to knock down Cavβ and gabapentin, a drug that binds to and inhibits α2δ1 and α2δ2, to test their effects on TH2 functions and their capacity to reduce allergic airway inflammation. RESULTS Mouse and human TH2 cells express mainly Cavβ1, β3, and α2δ2 subunits. Cavβ antisense reduces T-cell receptor-driven calcium responses and cytokine production by mouse and human TH2 cells with no effect on TH1 cells. Cavβ is mainly involved in restraining Cav1.2 α1 degradation through the proteasome because a proteasome inhibitor partially restores the α1 protein level. Gabapentin impairs the T-cell receptor-driven calcium response and cytokine production associated with the loss of α2δ2 protein in TH2 cells. CONCLUSIONS These results stress the role of Cavβ and α2δ2 auxiliary subunits in the stability and activation of Cav1.2 channels in TH2 lymphocytes both in vitro and in vivo, as demonstrated by the beneficial effect of Cavβ antisense and gabapentin in allergic airway inflammation.
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Affiliation(s)
- Nicolas Rosa
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Emily Triffaux
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Virginie Robert
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Marion Mars
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Martin Klein
- Institut du Thorax, INSERM CNRS, UNIV Nantes, France
| | | | - Astrid Canivet
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Antoine Magnan
- Institut du Thorax, INSERM CNRS, UNIV Nantes, France; Centre Hospitalier Universitaire de Nantes, Service de Pneumologie, Nantes, France
| | - Jean-Charles Guéry
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Lucette Pelletier
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France.
| | - Magali Savignac
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France.
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39
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Yan Q, Yang C, Fu Q, Chen Z, Liu S, Fu D, Rahman RN, Nakazato R, Yoshioka K, Kung SKP, Ding G, Wang H. Scaffold protein JLP mediates TCR-initiated CD4 +T cell activation and CD154 expression. Mol Immunol 2017; 87:258-266. [PMID: 28521278 DOI: 10.1016/j.molimm.2017.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 04/27/2017] [Accepted: 05/06/2017] [Indexed: 11/16/2022]
Abstract
CD4+ T-cell activation and its subsequent induction of CD154 (CD40 ligand, CD40L) expression are pivotal in shaping both the humoral and cellular immune responses. Scaffold protein JLP regulates signal transduction pathways and molecular trafficking inside cells, thus represents a critical component in maintaining cellular functions. Its role in regulating CD4+ T-cell activation and CD154 expression, however, is unclear. Here, we demonstrated expression of JLP in mouse tissues of lymph nodes, thymus, spleen, and also CD4+ T cells. Using CD4+ T cells from jlp-deficient and jlp-wild-type mice, we demonstrated that JLP-deficiency impaired T-cell proliferation, IL-2 production, and CD154 induction upon TCR stimulations, but had no impacts on the expression of other surface molecules such as CD25, CD69, and TCR. These observed impaired T-cell functions in the jlp-/- CD4+ T cells were associated with defective NF-AT activation and Ca2+ influx, but not the MAPK, NF-κB, as well as AP-1 signaling pathways. Our findings indicated that, for the first time, JLP plays a critical role in regulating CD4+ T cells response to TCR stimulation partly by mediating the activation of TCR-initiated Ca2+/NF-AT.
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Affiliation(s)
- Qi Yan
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Cheng Yang
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Qiang Fu
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Zhaowei Chen
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Shan Liu
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Dou Fu
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China
| | - Rahmat N Rahman
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Canada
| | - Ryota Nakazato
- Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Katsuji Yoshioka
- Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Sam K P Kung
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Canada
| | - Guohua Ding
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China.
| | - Huiming Wang
- Department of Nephrology, Renmin hospital of Wuhan University, Wuhan, China.
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40
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Sharma D, Tiwari BK, Mehto S, Antony C, Kak G, Singh Y, Natarajan K. Suppression of Protective Responses upon Activation of L-Type Voltage Gated Calcium Channel in Macrophages during Mycobacterium bovis BCG Infection. PLoS One 2016; 11:e0163845. [PMID: 27723836 PMCID: PMC5056721 DOI: 10.1371/journal.pone.0163845] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 09/15/2016] [Indexed: 12/22/2022] Open
Abstract
The prevalence of Mycobacterium tuberculosis (M. tb) strains eliciting drug resistance has necessitated the need for understanding the complexities of host pathogen interactions. The regulation of calcium homeostasis by Voltage Gated Calcium Channel (VGCCs) upon M. tb infection has recently assumed importance in this area. We previously showed a suppressor role of VGCC during M. tb infections and recently reported the mechanisms of its regulation by M. tb. Here in this report, we further characterize the role of VGCC in mediating defence responses of macrophages during mycobacterial infection. We report that activation of VGCC during infection synergistically downmodulates the generation of oxidative burst (ROS) by macrophages. This attenuation of ROS is regulated in a manner which is dependent on Toll like Receptor (TLR) and also on the route of calcium influx, Protein Kinase C (PKC) and by Mitogen Activation Protein Kinase (MAPK) pathways. VGCC activation during infection increases cell survival and downmodulates autophagy. Concomitantly, pro-inflammatory responses such as IL-12 and IFN-γ secretion and the levels of their receptors on cell surface are inhibited. Finally, the ability of phagosomes to fuse with lysosomes in M. bovis BCG and M. tb H37Rv infected macrophages is also compromised when VGCC activation occurs during infection. The results point towards a well-orchestrated strategy adopted by mycobacteria to supress protective responses mounted by the host. This begins with the increase in the surface levels of VGCCs by mycobacteria and their antigens by well-controlled and regulated mechanisms. Subsequent activation of the upregulated VGCC following tweaking of calcium levels by molecular sensors in turn mediates suppressor responses and prepare the macrophages for long term persistent infection.
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Affiliation(s)
- Deepika Sharma
- Infectious Disease Immunology Lab, Dr. B R Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India
| | - Brijendra Kumar Tiwari
- Infectious Disease Immunology Lab, Dr. B R Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India
| | - Subhash Mehto
- Infectious Disease Immunology Lab, Dr. B R Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India
| | - Cecil Antony
- Infectious Disease Immunology Lab, Dr. B R Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India
| | - Gunjan Kak
- Infectious Disease Immunology Lab, Dr. B R Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India
| | - Yogendra Singh
- Department of Zoology, University of Delhi, Delhi, India
| | - Krishnamurthy Natarajan
- Infectious Disease Immunology Lab, Dr. B R Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India
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41
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Protein partners of the calcium channel β subunit highlight new cellular functions. Biochem J 2016; 473:1831-44. [DOI: 10.1042/bcj20160125] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 03/15/2016] [Indexed: 12/21/2022]
Abstract
Calcium plays a key role in cell signalling by its intervention in a wide range of physiological processes. Its entry into cells occurs mainly via voltage-gated calcium channels (VGCC), which are found not only in the plasma membrane of excitable cells but also in cells insensitive to electrical signals. VGCC are composed of different subunits, α1, β, α2δ and γ, among which the cytosolic β subunit (Cavβ) controls the trafficking of the channel to the plasma membrane, its regulation and its gating properties. For many years, these were the main functions associated with Cavβ. However, a growing number of proteins have been found to interact with Cavβ, emphasizing the multifunctional role of this versatile protein. Interestingly, some of the newly assigned functions of Cavβ are independent of its role in the regulation of VGCC, and thus further increase its functional roles. Based on the identity of Cavβ protein partners, this review emphasizes the diverse cellular functions of Cavβ and summarizes both past findings as well as recent progress in the understanding of VGCC.
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42
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Martín-Ávila A, Medina-Tamayo J, Ibarra-Sánchez A, Vázquez-Victorio G, Castillo-Arellano JI, Hernández-Mondragón AC, Rivera J, Madera-Salcedo IK, Blank U, Macías-Silva M, González-Espinosa C. Protein Tyrosine Kinase Fyn Regulates TLR4-Elicited Responses on Mast Cells Controlling the Function of a PP2A-PKCα/β Signaling Node Leading to TNF Secretion. THE JOURNAL OF IMMUNOLOGY 2016; 196:5075-88. [PMID: 27183589 DOI: 10.4049/jimmunol.1501823] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 04/16/2016] [Indexed: 12/21/2022]
Abstract
Mast cells produce proinflammatory cytokines in response to TLR4 ligands, but the signaling pathways involved are not fully described. In this study, the participation of the Src family kinase Fyn in the production of TNF after stimulation with LPS was evaluated using bone marrow-derived mast cells from wild-type and Fyn-deficient mice. Fyn(-/-) cells showed higher LPS-induced secretion of preformed and de novo-synthesized TNF. In both cell types, TNF colocalized with vesicle-associated membrane protein (VAMP)3-positive compartments. Addition of LPS provoked coalescence of VAMP3 and its interaction with synaptosomal-associated protein 23; those events were increased in the absence of Fyn. Higher TNF mRNA levels were also observed in Fyn-deficient cells as a result of increased transcription and greater mRNA stability after LPS treatment. Fyn(-/-) cells also showed higher LPS-induced activation of TAK-1 and ERK1/2, whereas IκB kinase and IκB were phosphorylated, even in basal conditions. Increased responsiveness in Fyn(-/-) cells was associated with a lower activity of protein phosphatase 2A (PP2A) and augmented activity of protein kinase C (PKC)α/β, which was dissociated from PP2A and increased its association with the adapter protein neuroblast differentiation-associated protein (AHNAK, desmoyokin). LPS-induced PKCα/β activity was associated with VAMP3 coalescence in WT and Fyn-deficient cells. Reconstitution of MC-deficient Wsh mice with Fyn(-/-) MCs produced greater LPS-dependent production of TNF in the peritoneal cavity. Our data show that Fyn kinase is activated after TLR4 triggering and exerts an important negative control on LPS-dependent TNF production in MCs controlling the inactivation of PP2Ac and activation of PKCα/β necessary for the secretion of TNF by VAMP3(+) carriers.
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Affiliation(s)
- Alejandro Martín-Ávila
- Departamento de Farmacobiología, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Sede Sur, Tlalpan, CP 14330 Mexico City, Mexico
| | - Jaciel Medina-Tamayo
- Departamento de Farmacobiología, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Sede Sur, Tlalpan, CP 14330 Mexico City, Mexico
| | - Alfredo Ibarra-Sánchez
- Departamento de Farmacobiología, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Sede Sur, Tlalpan, CP 14330 Mexico City, Mexico
| | - Genaro Vázquez-Victorio
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad Universitaria, CP 04510 Mexico City, Mexico
| | - Jorge Iván Castillo-Arellano
- Departamento de Farmacobiología, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Sede Sur, Tlalpan, CP 14330 Mexico City, Mexico
| | - Alma Cristal Hernández-Mondragón
- Departamento de Farmacobiología, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Sede Sur, Tlalpan, CP 14330 Mexico City, Mexico
| | - Juan Rivera
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892-1820; and
| | - Iris K Madera-Salcedo
- INSERM UMRS1149, Faculté de Médecine, Université Paris-Diderot, Site X, Bichat, Paris 75018, France
| | - Ulrich Blank
- INSERM UMRS1149, Faculté de Médecine, Université Paris-Diderot, Site X, Bichat, Paris 75018, France
| | - Marina Macías-Silva
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad Universitaria, CP 04510 Mexico City, Mexico
| | - Claudia González-Espinosa
- Departamento de Farmacobiología, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Sede Sur, Tlalpan, CP 14330 Mexico City, Mexico;
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Fujibayashi S, Sasajima J, Goto T, Tanaka H, Kawabata H, Fujii T, Nakamura K, Chiba A, Yanagawa N, Moriichi K, Fujiya M, Kohgo Y. A high-throughput sequence analysis of Japanese patients revealed 11 candidate genes associated with type 1 autoimmune pancreatitis susceptibility. Biochem Biophys Rep 2016; 6:76-81. [PMID: 28955865 PMCID: PMC5600314 DOI: 10.1016/j.bbrep.2016.03.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 02/02/2016] [Accepted: 03/14/2016] [Indexed: 12/13/2022] Open
Abstract
The pathogenesis of autoimmune pancreatitis is unknown. In the present study we used high-throughput sequencing with next generation sequencing to identify the candidate genes associated with AIP. A total of 27 type 1 AIP patients and 30 healthy blood donors were recruited, and DNA samples were isolated from their mononuclear cells. A high-throughput sequencer with an original custom panel of 1031 genes was used to detect the genetic variants in each sample. Polymorphisms of CACNA1S (c.4642C>T), rs41554316, rs2231119, rs1042131, rs2838171, P2RX3 (c.195delG), rs75639061, SMAD7 (c.624delC) and TOP1 (c.2007delG), were identified as candidate genetic variants in patients with type 1 AIP. P2RX3 and TOP1 were significantly associated with AIP, even after adjusting bay means of Bonferroni's correction. In addition, we also identified eight candidate genetic variants that were associated with the relapse of type 1 AIP, namely: rs1143146, rs1050716, HLA-C (c.759_763delCCCCCinsTCCCG), rs1050451, rs4154112, rs1049069, CACNA1C (c.5996delC) and CXCR3 (c.630_631delGC). Finally polymorphisms of rs1050716 and rs111493987 were identified as candidate genetic variants associated with extra-pancreatic lesions in patients with type 1 AIP. These candidates might be used as markers of AIP susceptibility and could contribute to the pathogenesis of type 1 AIP.
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Affiliation(s)
- Shugo Fujibayashi
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa 078-8510, Hokkaido, Japan
| | - Junpei Sasajima
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa 078-8510, Hokkaido, Japan
| | - Takuma Goto
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa 078-8510, Hokkaido, Japan
| | - Hiroki Tanaka
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa 078-8510, Hokkaido, Japan
| | - Hidemasa Kawabata
- Department of Gastroenterology, Japanese Red Cross Asahikawa Hospital, 1-1-1-1 Akebono, Asahikawa 070-8530, Hokkaido, Japan
| | - Tsuneshi Fujii
- Department of Gastroenterology, Japanese Red Cross Asahikawa Hospital, 1-1-1-1 Akebono, Asahikawa 070-8530, Hokkaido, Japan
| | - Kazumasa Nakamura
- Department of Gastroenterology, Asahikawa City Hospital, 1-1-65 Kinseicho, Asahikawa 070-8610, Hokkaido, Japan
| | - Atsushi Chiba
- Department of Gastroenterology, Asahikawa City Hospital, 1-1-65 Kinseicho, Asahikawa 070-8610, Hokkaido, Japan
| | - Nobuyuki Yanagawa
- Department of Gastroenterology, Hokkaido Prefectural Welfare Federation of Agricultural Cooperative Asahikawa Kousei General Hospital, 111 1Jodori 24choume, Asahikawa 078-8211, Hokkaido, Japan
| | - Kentaro Moriichi
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa 078-8510, Hokkaido, Japan
| | - Mikihiro Fujiya
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa 078-8510, Hokkaido, Japan
| | - Yutaka Kohgo
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1 Midorigaoka-Higashi, Asahikawa 078-8510, Hokkaido, Japan
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T Cell Receptor Mediated Calcium Entry Requires Alternatively Spliced Cav1.1 Channels. PLoS One 2016; 11:e0147379. [PMID: 26815481 PMCID: PMC4729531 DOI: 10.1371/journal.pone.0147379] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 11/18/2015] [Indexed: 11/19/2022] Open
Abstract
The process of calcium entry in T cells is a multichannel and multi-step process. We have studied the requirement for L-type calcium channels (Cav1.1) α1S subunits during calcium entry after TCR stimulation. High expression levels of Cav1.1 channels were detected in activated T cells. Sequencing and cloning of Cav1.1 channel cDNA from T cells revealed that a single splice variant is expressed. This variant lacks exon 29, which encodes the linker region adjacent to the voltage sensor, but contains five new N-terminal exons that substitute for exons 1 and 2, which are found in the Cav1.1 muscle counterpart. Overexpression studies using cloned T cell Cav1.1 in 293HEK cells (that lack TCR) suggest that the gating of these channels was altered. Knockdown of Cav1.1 channels in T cells abrogated calcium entry after TCR stimulation, suggesting that Cav1.1 channels are controlled by TCR signaling.
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Nohara LL, Stanwood SR, Omilusik KD, Jefferies WA. Tweeters, Woofers and Horns: The Complex Orchestration of Calcium Currents in T Lymphocytes. Front Immunol 2015; 6:234. [PMID: 26052328 PMCID: PMC4440397 DOI: 10.3389/fimmu.2015.00234] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 04/30/2015] [Indexed: 11/28/2022] Open
Abstract
Elevation of intracellular calcium ion (Ca2+) levels is a vital event that regulates T lymphocyte homeostasis, activation, proliferation, differentiation, and apoptosis. The mechanisms that regulate intracellular Ca2+ signaling in lymphocytes involve tightly controlled concinnity of multiple ion channels, membrane receptors, and signaling molecules. T cell receptor (TCR) engagement results in depletion of endoplasmic reticulum (ER) Ca2+ stores and subsequent sustained influx of extracellular Ca2+ through Ca2+ release-activated Ca2+ (CRAC) channels in the plasma membrane. This process termed store-operated Ca2+ entry (SOCE) involves the ER Ca2+ sensing molecule, STIM1, and a pore-forming plasma membrane protein, ORAI1. However, several other important Ca2+ channels that are instrumental in T cell function also exist. In this review, we discuss the role of additional Ca2+ channel families expressed on the plasma membrane of T cells that likely contribute to Ca2+ influx following TCR engagement, which include the TRP channels, the NMDA receptors, the P2X receptors, and the IP3 receptors, with a focus on the voltage-dependent Ca2+ (CaV) channels.
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Affiliation(s)
- Lilian L Nohara
- Michael Smith Laboratories, University of British Columbia , Vancouver, BC , Canada ; Department of Microbiology and Immunology, University of British Columbia , Vancouver, BC , Canada
| | - Shawna R Stanwood
- Michael Smith Laboratories, University of British Columbia , Vancouver, BC , Canada ; Department of Microbiology and Immunology, University of British Columbia , Vancouver, BC , Canada
| | - Kyla D Omilusik
- Michael Smith Laboratories, University of British Columbia , Vancouver, BC , Canada ; Department of Microbiology and Immunology, University of British Columbia , Vancouver, BC , Canada
| | - Wilfred A Jefferies
- Michael Smith Laboratories, University of British Columbia , Vancouver, BC , Canada ; Department of Microbiology and Immunology, University of British Columbia , Vancouver, BC , Canada ; Centre for Blood Research, University of British Columbia , Vancouver, BC , Canada ; The Djavad Mowafaghian Centre for Brain Health, University of British Columbia , Vancouver, BC , Canada ; Department of Medical Genetics, University of British Columbia , Vancouver, BC , Canada ; Department of Zoology, University of British Columbia , Vancouver, BC , Canada
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Antony C, Mehto S, Tiwari BK, Singh Y, Natarajan K. Regulation of L-type Voltage Gated Calcium Channel CACNA1S in Macrophages upon Mycobacterium tuberculosis Infection. PLoS One 2015; 10:e0124263. [PMID: 25915405 PMCID: PMC4411123 DOI: 10.1371/journal.pone.0124263] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 03/11/2015] [Indexed: 01/17/2023] Open
Abstract
We demonstrated earlier the inhibitory role played by Voltage Gated Calcium Channels (VGCCs) in regulating Mycobacterium tuberculosis (M. tb) survival and pathogenesis. In this report, we investigated mechanisms and key players that regulate the surface expression of VGCC-CACNA1S by Rv2463 and M. tb infection in macrophages. Our earlier work identified Rv2463 to be expressed at early times post infection in macrophages that induced suppressor responses to dendritic cells and macrophages. Our results in this study demonstrate a role of MyD88 independent TLR pathway in mediating CACNA1S expression. Dissecting the role for second messengers, we show that calcium homeostasis plays a key role in CACNA1S expression during M. tb infection. Using siRNAs against molecular sensors of calcium regulation, we show an involvement of ER associated Stromal Interaction Molecules 1 and 2 (STIM1 and STIM2), and transcription factor pCREB, towards CACNA1S expression that also involved the MyD88 independent pathway. Interestingly, reactive oxygen species played a negative role in M. tb mediated CACNA1S expression. Further, a cross-regulation of ROS and pCREB was noted that governed CACNA1S expression. Characterizing the mechanisms governing CACNA1S expression would improve our understanding of the regulation of VGCC expression and its role in M. tb pathogenesis during M. tb infection.
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Affiliation(s)
- Cecil Antony
- Infectious Disease Immunology Lab, Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, 110007, India
- * E-mail: (CA); (KN)
| | - Subhash Mehto
- Infectious Disease Immunology Lab, Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, 110007, India
| | - Brijendra K. Tiwari
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007, India
| | - Yogendra Singh
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007, India
| | - Krishnamurthy Natarajan
- Infectious Disease Immunology Lab, Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, 110007, India
- * E-mail: (CA); (KN)
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Tong GQ, Zhang ZH, Zhao Y, Liu JJ, Han JB. Traffic-related PM2.5 induces cytosolic [Ca²⁺] increase regulated by Orai1, alters the CaN-NFAT signaling pathway, and affects IL-2 and TNF-α cytoplasmic levels in Jurkat T-cells. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2015; 68:31-37. [PMID: 25194241 DOI: 10.1007/s00244-014-0077-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Accepted: 08/05/2014] [Indexed: 06/03/2023]
Abstract
The atmospheric particulate matter with a diameter less than or equal to 2.5 um (PM2.5) can result in increased immune system damage or diseases, however, the possible mechanism remains unclear. In this study, we used Jurkat T cells to determine the effects of PM2.5 on T cell-mediated adaptive immune response. Our results indicated that PM2.5 exposure increased intracellular calcium ion concentration [Ca(2+)]. In contrast, cytosolic free Ca(2+) concentration [Ca(2+)]i significantly decreased in Jurkat T cells transfected with Orai1siRNA. In addition, we detected the level of interleukin (IL)-2 and tumor-necrosis factor (TNF)-α as well as other signalling molecules, including calcineurin (CaN) and NFATc2, a gene on 20q13.2 that encodes a member of the nuclear factor of activated T cells (NFAT), in the supernatant of cells exposed to PM2.5. The expression of NFATc2 protein increased in a time-dependent manner after exposure to PM2.5, but the activity of CaN decreased. NFATc2 was not consistent with IL-2 accumulation, thus indicating the involvement of other signals in the suppression of IL-2 accumulation. Our findings demonstrate that PM2.5 exposure in immune cells results in locally increased [Ca(2+)]i generated by Orai1 and CaN-NFAT gene expression, TNF-α and IL-2 cytoplasmic concentrations may be altered.
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Affiliation(s)
- Guo-Qiang Tong
- Department of Environmental Health, School of Public Health, Shanxi Medical University, Taiyuan, The People's Republic of China
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Bleier BS, Kocharyan A, Singleton A, Han X. Verapamil modulates interleukin-5 and interleukin-6 secretion in organotypic human sinonasal polyp explants. Int Forum Allergy Rhinol 2014; 5:10-3. [PMID: 25330767 DOI: 10.1002/alr.21436] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Revised: 08/27/2014] [Accepted: 09/12/2014] [Indexed: 01/03/2023]
Abstract
BACKGROUND Verapamil is an L-type calcium channel blocker (CCB) that has been shown to have immunomodulatory properties in a variety of tissues. The goal of this study was determine whether verapamil is capable of regulating cytokine secretion in sinonasal polyps and to compare this effect to dexamethasone, an established immunosuppressive corticosteroid. METHODS This was an institutional review board (IRB)-approved study in sinonasal polyp explants derived from 8 patients with chronic rhinosinusitis with nasal polyps (CRSwNP). Polyps were incubated with dexamethasone or verapamil for 24 hours followed by an additional 24 hours with Staphylococcal enterotoxin B (SEB). Concentrations of secreted cytokines over each exposure period were determined by enzyme-linked immunosorbent assay (ELISA) and are expressed as a percent. Results were compared using a 2-tailed Student t test. RESULTS The percent of SEB-stimulated interleukin-5 (IL-5) secretion (mean ± standard deviation [SD], 339.94% ± 315.48%) between the second and first treatment periods was significantly reduced following exposure to dexamethasone (74.08% ± 26.77%, p < 0.05) and verapamil (119.99% ± 69.32%, p < 0.05). The percent of SEB-stimulated IL-6 secretion (217.53% ± 89.51%) was also significantly reduced following exposure to verapamil (148.82% ± 79.15%, p < 0.05) but not dexamethasone (148.86% ± 145.24%). Finally, the percent of SEB-stimulated thymic stromal lymphopoietin (TSLP) secretion (37.86% ± 18.88%) demonstrated a nonsignificant trend toward reduction with both dexamethasone (31.15% ± 35.28%) and verapamil (20.14% ± 12.10%). CONCLUSION Although the mechanism has yet to be fully understood, L-type CCBs are capable of reducing inflammation in multiple tissues. Verapamil was specifically found to reduce airway goblet cell hyperplasia and eosinophilic infiltration in a murine asthma model. Our data support these findings suggesting that verapamil can modulate T-helper cell type 2 (Th2)-associated cytokine secretion in sinonasal polyp explants. This data points to a possible therapeutic role for CCBs in the management of CRSwNP.
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Affiliation(s)
- Benjamin S Bleier
- Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA
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Davis TA, Loos B, Engelbrecht AM. AHNAK: the giant jack of all trades. Cell Signal 2014; 26:2683-93. [PMID: 25172424 DOI: 10.1016/j.cellsig.2014.08.017] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 08/08/2014] [Accepted: 08/18/2014] [Indexed: 12/19/2022]
Abstract
The nucleoprotein AHNAK is an unusual and somewhat mysterious scaffolding protein characterised by its large size of approximately 700 kDa. Several aspects of this protein remain uncertain, including its exact molecular function and regulation on both the gene and protein levels. Various studies have attempted to annotate AHNAK and, notably, protein interaction and expression analyses have contributed greatly to our current understanding of the protein. The implicated biological processes are, however, very diverse, ranging from a role in the formation of the blood-brain barrier, cell architecture and migration, to the regulation of cardiac calcium channels and muscle membrane repair. In addition, recent evidence suggests that AHNAK might be yet another accomplice in the development of tumour metastasis. This review will discuss the different functional roles of AHNAK, highlighting recent advancements that have added foundation to the proposed roles while identifying ties between them. Implications for related fields of research are noted and suggestions for future research that will assist in unravelling the function of AHNAK are offered.
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Affiliation(s)
- T A Davis
- Department of Physiological Sciences, University of Stellenbosch, Mike de Vries Building, c/o Merriman Avenue and Bosman Street, Stellenbosch 7600, South Africa.
| | - B Loos
- Department of Physiological Sciences, University of Stellenbosch, Mike de Vries Building, c/o Merriman Avenue and Bosman Street, Stellenbosch 7600, South Africa
| | - A-M Engelbrecht
- Department of Physiological Sciences, University of Stellenbosch, Mike de Vries Building, c/o Merriman Avenue and Bosman Street, Stellenbosch 7600, South Africa
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Selvakumar A, Antony C, Singhal J, Tiwari BK, Singh Y, Natarajan K. Reciprocal regulation of reactive oxygen species and phospho-CREB regulates voltage gated calcium channel expression during Mycobacterium tuberculosis infection. PLoS One 2014; 9:e96427. [PMID: 24797940 PMCID: PMC4010530 DOI: 10.1371/journal.pone.0096427] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 04/04/2014] [Indexed: 11/18/2022] Open
Abstract
Our previous work has demonstrated the roles played by L-type Voltage Gated Calcium Channels (VGCC) in regulating Mycobacterium tuberculosis (M. tb) survival and pathogenesis. Here we decipher mechanisms and pathways engaged by the pathogen to regulate VGCC expression in macrophages. We show that M. tb and its antigen Rv3416 use phospho-CREB (pCREB), Reactive Oxygen Species (ROS), Protein Kinase C (PKC) and Mitogen Activated Protein Kinase (MAPK) to modulate VGCC expression in macrophages. siRNA mediated knockdown of MyD88, IRAK1, IRAK2 or TRAF6 significantly inhibited antigen mediated VGCC expression. Inhibiting Protein Kinase C (PKC) or MEK-ERK1/2 further increased VGCC expression. Interestingly, inhibiting intracellular calcium release upregulated antigen mediated VGCC expression, while inhibiting extracellular calcium influx had no significant effect. siRNA mediated knockdown of transcription factors c-Jun, SOX5 and CREB significantly inhibited Rv3416 mediated VGCC expression. A dynamic reciprocal cross-regulation between ROS and pCREB was observed that in turn governed VGCC expression with ROS playing a limiting role in the process. Further dissection of the mechanisms such as the interplay between ROS and pCREB would improve our understanding of the regulation of VGCC expression during M. tb infection.
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Affiliation(s)
- Arti Selvakumar
- From the Infectious Disease Immunology Lab, Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India
- * E-mail: (AS); (KN)
| | - Cecil Antony
- From the Infectious Disease Immunology Lab, Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India
| | - Jhalak Singhal
- From the Infectious Disease Immunology Lab, Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India
| | | | - Yogendra Singh
- CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Krishnamurthy Natarajan
- From the Infectious Disease Immunology Lab, Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India
- * E-mail: (AS); (KN)
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