1
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Ye D, Liu Q, Zhang C, Dai E, Fan J, Wu L. Relationship between immune cells and the development of chronic lung allograft dysfunction. Int Immunopharmacol 2024; 137:112381. [PMID: 38865754 DOI: 10.1016/j.intimp.2024.112381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 06/14/2024]
Abstract
A major cause of death for lung transplant recipients (LTRs) is the advent of chronic lung allograft dysfunction (CLAD), which has long plagued the long-term post-transplant prognosis and quality of survival of transplant patients. The intricacy of its pathophysiology and the irreversibility of its illness process present major obstacles to the clinical availability of medications. Immunotherapeutic medications are available, but they only aim to slow down the course of CLAD rather than having any therapeutic impact on the disease's development. For this reason, understanding the pathophysiology of CLAD is essential for both disease prevention and proven treatment. The immunological response in particular, in relation to chronic lung allograft dysfunction, has received a great deal of interest recently. Innate immune cells like natural killer cells, eosinophils, neutrophils, and mononuclear macrophages, as well as adaptive immunity cells like T and B cells, play crucial roles in this process through the release of chemokines and cytokines. The present review delves into changes and processes within the immune microenvironment, with a particular focus on the quantity, subtype, and characteristics of effector immune cells in the peripheral and transplanted lungs after lung transplantation. We incorporate and solidify the documented role of immune cells in the occurrence and development of CLAD with the advancements in recent years.
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Affiliation(s)
- Defeng Ye
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiongliang Liu
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chengcheng Zhang
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Enci Dai
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiang Fan
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Liang Wu
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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2
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Kurawaki S, Nakashima A, Ishiuchi N, Kanai R, Maeda S, Sasaki K, Masaki T. Mesenchymal stem cells pretreated with interferon-gamma attenuate renal fibrosis by enhancing regulatory T cell induction. Sci Rep 2024; 14:10251. [PMID: 38704512 PMCID: PMC11069572 DOI: 10.1038/s41598-024-60928-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 04/29/2024] [Indexed: 05/06/2024] Open
Abstract
Mesenchymal stem cells (MSCs) exert their anti-inflammatory and anti-fibrotic effects by secreting various humoral factors. Interferon-gamma (IFN-γ) can enhance these effects of MSCs, and enhancement of regulatory T (Treg) cell induction is thought to be an underlying mechanism. However, the extent to which Treg cell induction by MSCs pretreated with IFN-γ (IFN-γ MSCs) ameliorates renal fibrosis remains unknown. In this study, we investigated the effects of Treg cell induction by IFN-γ MSCs on renal inflammation and fibrosis using an siRNA knockdown system. Administration of IFN-γ MSCs induced Treg cells and inhibited infiltration of inflammatory cells in ischemia reperfusion injury (IRI) rats more drastically than control MSCs without IFN-γ pretreatment. In addition, administration of IFN-γ MSCs more significantly attenuated renal fibrosis compared with control MSCs. Indoleamine 2,3-dioxygenase (IDO) expression levels in conditioned medium from MSCs were enhanced by IFN-γ pretreatment. Moreover, IDO1 knockdown in IFN-γ MSCs reduced their anti-inflammatory and anti-fibrotic effects in IRI rats by reducing Treg cell induction. Our findings suggest that the increase of Treg cells induced by enhanced secretion of IDO by IFN-γ MSCs played a pivotal role in their anti-fibrotic effects. Administration of IFN-γ MSCs may potentially be a useful therapy to prevent renal fibrosis progression.
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Affiliation(s)
- So Kurawaki
- Department of Nephrology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Ayumu Nakashima
- Department of Nephrology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
- Department of Stem Cell Biology and Medicine, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan.
| | - Naoki Ishiuchi
- Department of Nephrology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
- Department of Stem Cell Biology and Medicine, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Ryo Kanai
- Department of Nephrology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Satoshi Maeda
- Department of Stem Cell Biology and Medicine, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
- TWOCELLS Company, Limited, 16-35 Hijiyama-honmachi, Minami-ku, Hiroshima, 732-0816, Japan
| | - Kensuke Sasaki
- Department of Nephrology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Takao Masaki
- Department of Nephrology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
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3
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Zannikou M, Fish EN, Platanias LC. Signaling by Type I Interferons in Immune Cells: Disease Consequences. Cancers (Basel) 2024; 16:1600. [PMID: 38672681 PMCID: PMC11049350 DOI: 10.3390/cancers16081600] [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: 03/11/2024] [Revised: 04/08/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
This review addresses interferon (IFN) signaling in immune cells and the tumor microenvironment (TME) and examines how this affects cancer progression. The data reveal that IFNs exert dual roles in cancers, dependent on the TME, exhibiting both anti-tumor activity and promoting cancer progression. We discuss the abnormal IFN signaling induced by cancerous cells that alters immune responses to permit their survival and proliferation.
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Affiliation(s)
- Markella Zannikou
- Robert H. Lurie Comprehensive Cancer Center, Division of Hematology-Oncology, Feinberg School of Medicine, Northwestern University, 303 East Superior Ave., Chicago, IL 60611, USA
| | - Eleanor N. Fish
- Toronto General Hospital Research Institute, University Health Network, 67 College Street, Toronto, ON M5G 2M1, Canada;
- Department of Immunology, University of Toronto, 1 King’s College Circle, Toronto, ON M5S 1A8, Canada
| | - Leonidas C. Platanias
- Robert H. Lurie Comprehensive Cancer Center, Division of Hematology-Oncology, Feinberg School of Medicine, Northwestern University, 303 East Superior Ave., Chicago, IL 60611, USA
- Department of Medicine, Jesse Brown Veterans Affairs Medical Center, 820 S. Damen Ave., Chicago, IL 60612, USA
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4
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Araujo Furlan CL, Boccardo S, Rodriguez C, Mary VS, Gimenez CMS, Robson SC, Gruppi A, Montes CL, Acosta Rodríguez EV. CD39 expression by regulatory T cells participates in CD8+ T cell suppression during experimental Trypanosoma cruzi infection. PLoS Pathog 2024; 20:e1012191. [PMID: 38683845 PMCID: PMC11081507 DOI: 10.1371/journal.ppat.1012191] [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: 09/22/2023] [Revised: 05/09/2024] [Accepted: 04/12/2024] [Indexed: 05/02/2024] Open
Abstract
An imbalance between suppressor and effector immune responses may preclude cure in chronic parasitic diseases. In the case of Trypanosoma cruzi infection, specialized regulatory Foxp3+ T (Treg) cells suppress protective type-1 effector responses. Herein, we investigated the kinetics and underlying mechanisms behind the regulation of protective parasite-specific CD8+ T cell immunity during acute T. cruzi infection. Using the DEREG mouse model, we found that Treg cells play a role during the initial stages after T. cruzi infection, restraining the magnitude of CD8+ T cell responses and parasite control. Early Treg cell depletion increased the frequencies of polyfunctional short-lived, effector T cell subsets, without affecting memory precursor cell formation or the expression of activation, exhaustion and functional markers. In addition, Treg cell depletion during early infection minimally affected the antigen-presenting cell response but it boosted CD4+ T cell responses before the development of anti-parasite effector CD8+ T cell immunity. Crucially, the absence of CD39 expression on Treg cells significantly bolstered effector parasite-specific CD8+ T cell responses, preventing increased parasite replication in T. cruzi infected mice adoptively transferred with Treg cells. Our work underscores the crucial role of Treg cells in regulating protective anti-parasite immunity and provides evidence that CD39 expression by Treg cells represents a key immunomodulatory mechanism in this infection model.
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Affiliation(s)
- Cintia L. Araujo Furlan
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Santiago Boccardo
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Constanza Rodriguez
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Verónica S. Mary
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Camila M. S. Gimenez
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Simon C. Robson
- Center for Inflammation Research, Department of Anesthesia, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Adriana Gruppi
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Carolina L. Montes
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Eva V. Acosta Rodríguez
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
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5
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Berber E, Mulik S, Rouse BT. Meeting the Challenge of Controlling Viral Immunopathology. Int J Mol Sci 2024; 25:3935. [PMID: 38612744 PMCID: PMC11011832 DOI: 10.3390/ijms25073935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 04/14/2024] Open
Abstract
The mission of this review is to identify immune-damaging participants involved in antiviral immunoinflammatory lesions. We argue these could be targeted and their activity changed selectively by maneuvers that, at the same time, may not diminish the impact of components that help resolve lesions. Ideally, we need to identify therapeutic approaches that can reverse ongoing lesions that lack unwanted side effects and are affordable to use. By understanding the delicate balance between immune responses that cause tissue damage and those that aid in resolution, novel strategies can be developed to target detrimental immune components while preserving the beneficial ones. Some strategies involve rebalancing the participation of immune components using various approaches, such as removing or blocking proinflammatory T cell products, expanding regulatory cells, restoring lost protective cell function, using monoclonal antibodies (moAb) to counteract inhibitory molecules, and exploiting metabolic differences between inflammatory and immuno-protective responses. These strategies can help reverse ongoing viral infections. We explain various approaches, from model studies and some clinical evidence, that achieve innate and adaptive immune rebalancing, offering insights into potential applications for controlling chronic viral-induced lesions.
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Affiliation(s)
- Engin Berber
- Infection Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA;
| | - Sachin Mulik
- Center for Biomedical Research, The University of Texas Health Science Center at Tyler, Tyler, TX 75708, USA;
| | - Barry T. Rouse
- College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA
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6
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van der Heide V, Davenport B, Cubitt B, Roudko V, Choo D, Humblin E, Jhun K, Angeliadis K, Dawson T, Furtado G, Kamphorst A, Ahmed R, de la Torre JC, Homann D. Functional impairment of "helpless" CD8 + memory T cells is transient and driven by prolonged but finite cognate antigen presentation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.22.576725. [PMID: 38328184 PMCID: PMC10849538 DOI: 10.1101/2024.01.22.576725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Generation of functional CD8 + T cell memory typically requires engagement of CD4 + T cells. However, in certain scenarios, such as acutely-resolving viral infections, effector (T E ) and subsequent memory (T M ) CD8 + T cell formation appear impervious to a lack of CD4 + T cell help during priming. Nonetheless, such "helpless" CD8 + T M respond poorly to pathogen rechallenge. At present, the origin and long-term evolution of helpless CD8 + T cell memory remain incompletely understood. Here, we demonstrate that helpless CD8 + T E differentiation is largely normal but a multiplicity of helpless CD8 T M defects, consistent with impaired memory maturation, emerge as a consequence of prolonged yet finite exposure to cognate antigen. Importantly, these defects resolve over time leading to full restoration of CD8 + T M potential and recall capacity. Our findings provide a unified explanation for helpless CD8 + T cell memory and emphasize an unexpected CD8 + T M plasticity with implications for vaccination strategies and beyond.
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7
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Zhao Y, Chen J, Andreatta M, Feng B, Xie YQ, Wenes M, Wang Y, Gao M, Hu X, Romero P, Carmona S, Sun J, Guo Y, Tang L. IL-10-expressing CAR T cells resist dysfunction and mediate durable clearance of solid tumors and metastases. Nat Biotechnol 2024:10.1038/s41587-023-02060-8. [PMID: 38168996 DOI: 10.1038/s41587-023-02060-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 11/08/2023] [Indexed: 01/05/2024]
Abstract
The success of chimeric antigen receptor (CAR) T cell therapy in treating several hematopoietic malignancies has been difficult to replicate in solid tumors, in part because of T cell exhaustion and eventually dysfunction. To counter T cell dysfunction in the tumor microenvironment, we metabolically armored CAR T cells by engineering them to secrete interleukin-10 (IL-10). We show that IL-10 CAR T cells preserve intact mitochondrial structure and function in the tumor microenvironment and increase oxidative phosphorylation in a mitochondrial pyruvate carrier-dependent manner. IL-10 secretion promoted proliferation and effector function of CAR T cells, leading to complete regression of established solid tumors and metastatic cancers across several cancer types in syngeneic and xenograft mouse models, including colon cancer, breast cancer, melanoma and pancreatic cancer. IL-10 CAR T cells also induced stem cell-like memory responses in lymphoid organs that imparted durable protection against tumor rechallenge. Our results establish a generalizable approach to counter CAR T cell dysfunction through metabolic armoring, leading to solid tumor eradication and long-lasting immune protection.
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Affiliation(s)
- Yang Zhao
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- Institute of Materials Science & Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Jiangqing Chen
- Department of Cell Biology and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Massimo Andreatta
- Department of Oncology, University of Lausanne, Lausanne, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Bing Feng
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- Institute of Materials Science & Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Yu-Qing Xie
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Mathias Wenes
- Department of Oncology, University of Lausanne, Lausanne, Switzerland
| | - Yi Wang
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- Institute of Materials Science & Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Min Gao
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Xiaomeng Hu
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Pedro Romero
- Department of Oncology, University of Lausanne, Lausanne, Switzerland
| | - Santiago Carmona
- Department of Oncology, University of Lausanne, Lausanne, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Jie Sun
- Department of Cell Biology and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Yugang Guo
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
- Institute of Materials Science & Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China.
- National Key Laboratory of Advanced Drug Delivery and Release Systems, Zhejiang University, Hangzhou, China.
| | - Li Tang
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
- Institute of Materials Science & Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
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8
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Martin-Salgado M, Ochoa-Echeverría A, Mérida I. Diacylglycerol kinases: A look into the future of immunotherapy. Adv Biol Regul 2024; 91:100999. [PMID: 37949728 DOI: 10.1016/j.jbior.2023.100999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 11/01/2023] [Indexed: 11/12/2023]
Abstract
Cancer still represents the second leading cause of death right after cardiovascular diseases. According to the World Health Organization (WHO), cancer provoked around 10 million deaths in 2020, with lung and colon tumors accounting for the deadliest forms of cancer. As tumor cells become resistant to traditional therapeutic approaches, immunotherapy has emerged as a novel strategy for tumor control. T lymphocytes are key players in immune responses against tumors. Immunosurveillance allows identification, targeting and later killing of cancerous cells. Nevertheless, tumors evolve through different strategies to evade the immune response and spread in a process called metastasis. The ineffectiveness of traditional strategies to control tumor growth and expansion has led to novel approaches considering modulation of T cell activation and effector functions. Program death receptor 1 (PD-1) and cytotoxic T-lymphocyte antigen 4 (CTLA-4) showed promising results in the early 90s and nowadays are still being exploited together with other drugs for several cancer types. Other negative regulators of T cell activation are diacylglycerol kinases (DGKs) a family of enzymes that catalyze the conversion of diacylglycerol (DAG) into phosphatidic acid (PA). In T cells, DGKα and DGKζ limit the PLCγ/Ras/ERK axis thus attenuating DAG mediated signaling and T cell effector functions. Upregulation of either of both isoforms results in impaired Ras activation and anergy induction, whereas germline knockdown mice showed enhanced antitumor properties and more effective immune responses against pathogens. Here we review the mechanisms used by DGKs to ameliorate T cell activation and how inhibition could be used to reinvigorate T cell functions in cancer context. A better knowledge of the molecular mechanisms involved upon T cell activation will help to improve current therapies with DAG promoting agents.
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Affiliation(s)
- Miguel Martin-Salgado
- Department of Immunology and Oncology. National Centre for Biotechnology. Spanish Research Council (CNB-CSIC), Spain
| | - Ane Ochoa-Echeverría
- Department of Immunology and Oncology. National Centre for Biotechnology. Spanish Research Council (CNB-CSIC), Spain
| | - Isabel Mérida
- Department of Immunology and Oncology. National Centre for Biotechnology. Spanish Research Council (CNB-CSIC), Spain.
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9
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Qian G, Jiang W, Sun D, Sun Z, Chen A, Fang H, Wang J, Liu Y, Yin Z, Wei H, Fang H, Zhang X. B-cell-derived IL-10 promotes allergic sensitization in asthma regulated by Bcl-3. Cell Mol Immunol 2023; 20:1313-1327. [PMID: 37653127 PMCID: PMC10616210 DOI: 10.1038/s41423-023-01079-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/15/2023] [Indexed: 09/02/2023] Open
Abstract
Aeroallergen sensitization, mainly mediated by lung epithelium and dendritic cells (DCs), is integral to allergic asthma pathogenesis and progression. IL-10 has a dual role in immune responses, as it inhibits myeloid cell activation but promotes B-cell responses and epithelial cell proliferation. Here, we report a proinflammatory function of B-cell-derived IL-10 modulated by Bcl-3 in allergic asthma. Specifically, Bcl-3-/- mice showed elevated IL-10 levels and were found to be highly vulnerable to allergic asthma induced by house dust mites (HDMs). IL-10 had a positive correlation with the levels of the DC chemoattractant CCL-20 in HDM-sensitized mice and in patients with asthma and induced a selective increase in CCL-20 production by mouse lung epithelial cells. Blockade of IL-10 or IL-10 receptors during sensitization dampened both HDM-induced sensitization and asthma development. IL-10 levels peaked 4 h post sensitization with HDM and IL-10 was primarily produced by B cells under Bcl-3-Blimp-1-Bcl-6 regulation. Mice lacking B-cell-derived IL-10 displayed decreased lung epithelial CCL-20 production and diminished DC recruitment to the lungs upon HDM sensitization, thereby demonstrating resistance to HDM-induced asthma. Moreover, responses to HDM stimulation in Bcl-3-/- mice lacking B-cell-derived IL-10 were comparable to those in Bcl-3+/+ mice. The results revealed an unexpected role of B-cell-derived IL-10 in promoting allergic sensitization and demonstrated that Bcl-3 prevents HDM-induced asthma by inhibiting B-cell-derived IL-10 production. Thus, targeting the Bcl-3/IL-10 axis to inhibit allergic sensitization is a promising approach for treating allergic asthma. IL-10 is released rapidly from lung plasma cells under Bcl-3-Blimp-1-Bcl-6 regulation upon house dust mite exposure and amplifies lung epithelial cell (EC)-derived CCL-20 production and subsequent dendritic cell (DC) recruitment to promote allergic sensitization in asthma.
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Affiliation(s)
- Guojun Qian
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China.
- Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, 200001, Shanghai, China.
| | - Wenxia Jiang
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 200031, Shanghai, China
| | - Donglin Sun
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China
| | - Zhun Sun
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China
| | - Anning Chen
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China
| | - Hongwei Fang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Jingyao Wang
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China
| | - Yongzhong Liu
- Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 200032, Shanghai, China
| | - Zhinan Yin
- Zhuhai People's Hospital, Biomedical Translational Research Institute, Jinan University, 510632, Guangzhou, China
| | - Haiming Wei
- Institute of Immunology, University of Science and Technology of China, 230000, Hefei, China
| | - Hao Fang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, 200032, Shanghai, China.
- Department of Anesthesiology, Minhang Hospital, Fudan University, 201100, Shanghai, China.
| | - Xiaoren Zhang
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China.
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 200031, Shanghai, China.
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10
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Araujo Furlan CL, Boccardo S, Rodriguez C, Robson SC, Gruppi A, Montes CL, Acosta Rodríguez EV. CD39 expression by regulatory T cells drives CD8+ T cell suppression during experimental Trypanosoma cruzi infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.14.557792. [PMID: 37745571 PMCID: PMC10515944 DOI: 10.1101/2023.09.14.557792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
An imbalance between suppressor and effector immune responses may preclude cure in chronic parasitic diseases. In the case of Trypanosoma cruzi infection, specialized regulatory Foxp3+ T (Treg) cells suppress protective type-1 effector responses. Herein, we investigated the kinetics and underlying mechanisms behind the regulation of protective parasite-specific CD8+ T cell immunity during acute T. cruzi infection. Using the DEREG mouse model, we found that Treg cells play a critical role during the initial stages after T. cruzi infection, subsequently influencing CD8+ T cells. Early Treg cell depletion increased the frequencies of polyfunctional short-lived, effector T cell subsets, without affecting memory precursor cell formation or the expression of activation markers. In addition, Treg cell depletion during early infection minimally affected the antigen-presenting cell response but it boosted CD4+ T cell responses before the development of anti-parasite effector CD8+ T cell responses. Crucially, the absence of CD39 expression on Treg cells significantly bolstered effector parasite-specific CD8+ T cell responses, leading to improved parasite control during T. cruzi infection. Our work underscores the crucial role of Treg cells in regulating protective anti-parasite immunity and provides evidence that CD39 expression by Treg cells represents a key immunomodulatory mechanism in this infection model.
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11
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Barros L, Piontkivska D, Figueiredo-Campos P, Fanczal J, Ribeiro SP, Baptista M, Ariotti S, Santos N, Amorim MJ, Pereira CS, Veldhoen M, Ferreira C. CD8 + tissue-resident memory T-cell development depends on infection-matching regulatory T-cell types. Nat Commun 2023; 14:5579. [PMID: 37696824 PMCID: PMC10495327 DOI: 10.1038/s41467-023-41364-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 08/29/2023] [Indexed: 09/13/2023] Open
Abstract
Immunological memory is critical for immune protection, particularly at epithelial sites, which are under constant risk of pathogen invasions. To counter invading pathogens, CD8+ memory T cells develop at the location of infection: tissue-resident memory T cells (TRM). CD8+ T-cell responses are associated with type-1 infections and type-1 regulatory T cells (TREG) are important for CD8+ T-cell development, however, if CD8+ TRM cells develop under other infection types and require immune type-specific TREG cells is unknown. We used three distinct lung infection models, to show that type-2 helminth infection does not establish CD8+ TRM cells. Intracellular (type-1) and extracellular (type-3) infections do and rely on the recruitment of response type-matching TREG population contributing transforming growth factor-β. Nevertheless, type-1 TREG cells remain the most important population for TRM cell development. Once established, TRM cells maintain their immune type profile. These results may have implications in the development of vaccines inducing CD8+ TRM cells.
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Affiliation(s)
- Leandro Barros
- Instituto de Medicina Molecular | João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Av. Professor Egas Moniz, Lisbon, 1649-028, Portugal
| | - Daryna Piontkivska
- Instituto de Tecnologia Química e Biológica António Xavier, Av. da República, Oeiras, 2780-157, Portugal
| | - Patrícia Figueiredo-Campos
- Instituto de Medicina Molecular | João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Av. Professor Egas Moniz, Lisbon, 1649-028, Portugal
| | - Júlia Fanczal
- Instituto de Medicina Molecular | João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Av. Professor Egas Moniz, Lisbon, 1649-028, Portugal
| | - Sofia Pereira Ribeiro
- Instituto de Medicina Molecular | João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Av. Professor Egas Moniz, Lisbon, 1649-028, Portugal
| | - Marta Baptista
- Instituto de Medicina Molecular | João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Av. Professor Egas Moniz, Lisbon, 1649-028, Portugal
| | - Silvia Ariotti
- Instituto de Medicina Molecular | João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Av. Professor Egas Moniz, Lisbon, 1649-028, Portugal
| | - Nuno Santos
- Instituto Gulbenkian de Ciência, Rua da Quinta Grande 6, Oeiras, 2780-156, Portugal
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
| | - Maria João Amorim
- Instituto Gulbenkian de Ciência, Rua da Quinta Grande 6, Oeiras, 2780-156, Portugal
- Universidade Católica Portuguesa, Católica Médical School, Católica Biomedical Research Centre, Palma de Cima, 1649-023, Portugal
| | - Cristina Silva Pereira
- Instituto de Tecnologia Química e Biológica António Xavier, Av. da República, Oeiras, 2780-157, Portugal
| | - Marc Veldhoen
- Instituto de Medicina Molecular | João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Av. Professor Egas Moniz, Lisbon, 1649-028, Portugal.
| | - Cristina Ferreira
- Instituto de Medicina Molecular | João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Av. Professor Egas Moniz, Lisbon, 1649-028, Portugal.
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12
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Clement M, Ladell K, Miners KL, Marsden M, Chapman L, Cardus Figueras A, Scott J, Andrews R, Clare S, Kriukova VV, Lupyr KR, Britanova OV, Withers DR, Jones SA, Chudakov DM, Price DA, Humphreys IR. Inhibitory IL-10-producing CD4 + T cells are T-bet-dependent and facilitate cytomegalovirus persistence via coexpression of arginase-1. eLife 2023; 12:e79165. [PMID: 37440306 PMCID: PMC10344424 DOI: 10.7554/elife.79165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/11/2023] [Indexed: 07/14/2023] Open
Abstract
Inhibitory CD4+ T cells have been linked with suboptimal immune responses against cancer and pathogen chronicity. However, the mechanisms that underpin the development of these regulatory cells, especially in the context of ongoing antigen exposure, have remained obscure. To address this knowledge gap, we undertook a comprehensive functional, phenotypic, and transcriptomic analysis of interleukin (IL)-10-producing CD4+ T cells induced by chronic infection with murine cytomegalovirus (MCMV). We identified these cells as clonally expanded and highly differentiated TH1-like cells that developed in a T-bet-dependent manner and coexpressed arginase-1 (Arg1), which promotes the catalytic breakdown of L-arginine. Mice lacking Arg1-expressing CD4+ T cells exhibited more robust antiviral immunity and were better able to control MCMV. Conditional deletion of T-bet in the CD4+ lineage suppressed the development of these inhibitory cells and also enhanced immune control of MCMV. Collectively, these data elucidated the ontogeny of IL-10-producing CD4+ T cells and revealed a previously unappreciated mechanism of immune regulation, whereby viral persistence was facilitated by the site-specific delivery of Arg1.
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Affiliation(s)
- Mathew Clement
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
- Systems Immunity Research Institute, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Kristin Ladell
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Kelly L Miners
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Morgan Marsden
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Lucy Chapman
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Anna Cardus Figueras
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Jake Scott
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Robert Andrews
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
- Systems Immunity Research Institute, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Simon Clare
- Wellcome Sanger Institute, Wellcome Genome CampusHinxtonUnited Kingdom
| | - Valeriia V Kriukova
- Center of Life Sciences, Skolkovo Institute of Science and TechnologyMoscowRussian Federation
- Genomics of Adaptive Immunity Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscowRussian Federation
- Institute of Clinical Molecular Biology, Christian-Albrecht-University of KielKielGermany
| | - Ksenia R Lupyr
- Center of Life Sciences, Skolkovo Institute of Science and TechnologyMoscowRussian Federation
- Genomics of Adaptive Immunity Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscowRussian Federation
- Institute of Translational Medicine, Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical UniversityMoscowRussian Federation
| | - Olga V Britanova
- Genomics of Adaptive Immunity Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscowRussian Federation
- Institute of Clinical Molecular Biology, Christian-Albrecht-University of KielKielGermany
- Institute of Translational Medicine, Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical UniversityMoscowRussian Federation
| | - David R Withers
- Institute of Immunology and Immunotherapy, University of BirminghamBirminghamUnited Kingdom
| | - Simon A Jones
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
- Systems Immunity Research Institute, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Dmitriy M Chudakov
- Center of Life Sciences, Skolkovo Institute of Science and TechnologyMoscowRussian Federation
- Genomics of Adaptive Immunity Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscowRussian Federation
- Institute of Translational Medicine, Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical UniversityMoscowRussian Federation
- Abu Dhabi Stem Cell CenterAl MuntazahUnited Arab Emirates
| | - David A Price
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
- Systems Immunity Research Institute, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Ian R Humphreys
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
- Systems Immunity Research Institute, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
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13
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Fu S, Liu M, Zhu C, Zhang H, Zhao C, Xie Y, Chen G, Sheng D, Pan J, He Z, Dai Y, Gao Y, Li X, Chen L, Qian Y, Jin T, Sun C, Tian Z, Wang H, Bai L. Regulatory mucosa-associated invariant T cells controlled by β1 adrenergic receptor signaling contribute to hepatocellular carcinoma progression. Hepatology 2023; 78:72-87. [PMID: 36626624 DOI: 10.1097/hep.0000000000000014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 09/30/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND AND AIMS The innate-like mucosa-associated invariant T (MAIT) cells are enriched in human liver and have been linked to human HCC. However, their contributions to the progression of HCC are controversial due to the heterogeneity of MAIT cells, and new MAIT cell subsets remain to be explored. APPROACH AND RESULTS Combining single cell RNA sequencing (scRNA-seq) and flow cytometry analysis, we performed phenotypic and functional studies and found that FOXP3 + CXCR3 + MAIT cells in HCC patients were regulatory MAIT cells (MAITregs) with high immunosuppressive potential. These MAITregs were induced under Treg-inducing condition and predominantly from FOXP3 - CXCR3 + MAIT cells, which displayed mild Treg-related features and represented a pre-MAITreg reservoir. In addition, the induction and function of MAITregs were promoted by β1 adrenergic receptor signaling in pre-MAITregs and MAITregs, respectively. In HCC patients, high proportion of the intratumoral MAITregs inhibited antitumor immune responses and was associated with poor clinical outcomes. CONCLUSIONS Together, we reveal an immunosuppressive subset of MAIT cells in HCC patients that contributes to HCC progression, and propose a control through neuroimmune crosstalk.
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Affiliation(s)
- Sicheng Fu
- Division of Life Sciences and Medicine, Department of Oncology of the First Affiliated Hospital, the CAS Key Laboratory of Innate Immunity and Chronic Disease, University of Science and Technology of China, Hefei, China
| | - Muziying Liu
- School of Basic Medical Sciences, University of Science and Technology of China, Hefei, China
- Anhui Institute of Pediatric Research, Anhui Provincial Children's Hospital, Hefei, China
| | - Chenwen Zhu
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Huimin Zhang
- Division of Life Sciences and Medicine, Department of Oncology of the First Affiliated Hospital, the CAS Key Laboratory of Innate Immunity and Chronic Disease, University of Science and Technology of China, Hefei, China
- School of Basic Medical Sciences, University of Science and Technology of China, Hefei, China
| | - Changfeng Zhao
- School of Basic Medical Sciences, University of Science and Technology of China, Hefei, China
| | - Yaping Xie
- Department of Anesthesiology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Guanghou Chen
- Department of General Surgery, Organ Transplantation Center, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Daping Sheng
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jun Pan
- School of Basic Medical Sciences, University of Science and Technology of China, Hefei, China
| | - Ziqing He
- Department of Anesthesiology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ying Dai
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yufeng Gao
- Department of Infectious Disease, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xiaomei Li
- Division of Life Sciences and Medicine, Department of Rheumatology and Immunology, the First Affiliated Hospital, University of Science and Technology of China, Hefei, China
| | - Lijian Chen
- Department of Anesthesiology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yeben Qian
- Department of General Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Tengchuan Jin
- School of Basic Medical Sciences, University of Science and Technology of China, Hefei, China
| | - Cheng Sun
- School of Basic Medical Sciences, University of Science and Technology of China, Hefei, China
| | - Zhigang Tian
- School of Basic Medical Sciences, University of Science and Technology of China, Hefei, China
| | - Hua Wang
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei, China
| | - Li Bai
- Division of Life Sciences and Medicine, Department of Oncology of the First Affiliated Hospital, the CAS Key Laboratory of Innate Immunity and Chronic Disease, University of Science and Technology of China, Hefei, China
- School of Basic Medical Sciences, University of Science and Technology of China, Hefei, China
- Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, China
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
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14
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Dikiy S, Rudensky AY. Principles of regulatory T cell function. Immunity 2023; 56:240-255. [PMID: 36792571 DOI: 10.1016/j.immuni.2023.01.004] [Citation(s) in RCA: 72] [Impact Index Per Article: 72.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 02/16/2023]
Abstract
Regulatory T (Treg) cells represent a distinct lineage of cells of the adaptive immune system indispensable for forestalling fatal autoimmune and inflammatory pathologies. The role of Treg cells as principal guardians of the immune system can be attributed to their ability to restrain all currently recognized major types of inflammatory responses through modulating the activity of a wide range of cells of the innate and adaptive immune system. This broad purview over immunity and inflammation is afforded by the multiple modes of action Treg cells exert upon their diverse molecular and cellular targets. Beyond the suppression of autoimmunity for which they were originally recognized, Treg cells have been implicated in tissue maintenance, repair, and regeneration under physiologic and pathologic conditions. Herein, we discuss the current and emerging understanding of Treg cell effector mechanisms in the context of the basic properties of Treg cells that endow them with such functional versatility.
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Affiliation(s)
- Stanislav Dikiy
- Howard Hughes Medical Institute and Immunology Program, Sloan Kettering Institute, Ludwig Center at Memorial Sloan Kettering Cancer Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, NY 10021, USA.
| | - Alexander Y Rudensky
- Howard Hughes Medical Institute and Immunology Program, Sloan Kettering Institute, Ludwig Center at Memorial Sloan Kettering Cancer Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
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15
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Choi H, Kim Y, Jung YW. The Function of Memory CD8+ T Cells in Immunotherapy for Human Diseases. Immune Netw 2023; 23:e10. [PMID: 36911798 PMCID: PMC9995995 DOI: 10.4110/in.2023.23.e10] [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: 12/28/2022] [Revised: 02/13/2023] [Accepted: 02/13/2023] [Indexed: 03/07/2023] Open
Abstract
Memory T (Tm) cells protect against Ags that they have previously contacted with a fast and robust response. Therefore, developing long-lived Tm cells is a prime goal for many vaccines and therapies to treat human diseases. The remarkable characteristics of Tm cells have led scientists and clinicians to devise methods to make Tm cells more useful. Recently, Tm cells have been highlighted for their role in coronavirus disease 2019 vaccines during the ongoing global pandemic. The importance of Tm cells in cancer has been emerging. However, the precise characteristics and functions of Tm cells in these diseases are not completely understood. In this review, we summarize the known characteristics of Tm cells and their implications in the development of vaccines and immunotherapies for human diseases. In addition, we propose to exploit the beneficial characteristics of Tm cells to develop strategies for effective vaccines and overcome the obstacles of immunotherapy.
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Affiliation(s)
- Hanbyeul Choi
- Department of Pharmacy, Korea University, Sejong 30019, Korea
| | - Yeaji Kim
- Department of Pharmacy, Korea University, Sejong 30019, Korea
| | - Yong Woo Jung
- Department of Pharmacy, Korea University, Sejong 30019, Korea
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16
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Li K, Li J, Wei X, Wang J, Geng M, Ai K, Liang W, Zhang J, Li K, Gao H, Yang J. IL-10 Negatively Controls the Primary T Cell Response of Tilapia by Triggering the JAK1/STAT3/SOCS3 Axis That Suppresses NF-κB and MAPK/ERK Signaling. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:229-244. [PMID: 36548476 DOI: 10.4049/jimmunol.2200335] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 11/14/2022] [Indexed: 12/24/2022]
Abstract
The braking mechanisms to protect the host from tissue damage and inflammatory disease caused by an overexuberant immune response are common in many T cell subsets. However, the negative regulation of T cell responses and detailed mechanisms are not well understood in early vertebrates. In the current study, using a Nile tilapia (Oreochromis niloticus) model, we investigated the suppression of T cell immunity by IL-10. Tilapia encodes an evolutionarily conserved IL-10, whose expression in lymphocytes is markedly induced during the primary adaptive immune response against Aeromonas hydrophila infection. Activated T cells of tilapia produce IL-10, which in turn inhibits proinflammatory cytokine expression and suppresses PHA-induced T cell activation. Moreover, administration of IL-10 impairs the proliferation of tilapia T cells, reduces their potential to differentiate into Th subsets, and cripples the cytotoxic function, rendering the animals more vulnerable to pathogen attack. After binding to its receptor IL-10Ra, IL-10 activates the JAK1/STAT3 axis by phosphorylation and enhances the expression of the suppressor of cytokine signaling 3 (SOCS3), which in turn attenuates the activation of the NF-κB and MAPK/ERK signaling pathways, thus suppressing the T cell response of tilapia. Our findings elucidate a negative regulatory mechanism of T cell immunity in a fish species and support the notion that the braking mechanism of T cells executed through IL-10 existed prior to the divergence of the tetrapod lineage from teleosts. Therefore, this study, to our knowledge, provides a novel perspective on the evolution of the adaptive immune system.
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Affiliation(s)
- Kang Li
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jiaqi Li
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Xiumei Wei
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Junya Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China; and
| | - Ming Geng
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Kete Ai
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Wei Liang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jiansong Zhang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Kunming Li
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Haiyou Gao
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jialong Yang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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17
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Tsyklauri O, Chadimova T, Niederlova V, Kovarova J, Michalik J, Malatova I, Janusova S, Ivashchenko O, Rossez H, Drobek A, Vecerova H, Galati V, Kovar M, Stepanek O. Regulatory T cells suppress the formation of potent KLRK1 and IL-7R expressing effector CD8 T cells by limiting IL-2. eLife 2023; 12:79342. [PMID: 36705564 PMCID: PMC9977273 DOI: 10.7554/elife.79342] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 01/27/2023] [Indexed: 01/28/2023] Open
Abstract
Regulatory T cells (Tregs) are indispensable for maintaining self-tolerance by suppressing conventional T cells. On the other hand, Tregs promote tumor growth by inhibiting anticancer immunity. In this study, we identified that Tregs increase the quorum of self-reactive CD8+ T cells required for the induction of experimental autoimmune diabetes in mice. Their major suppression mechanism is limiting available IL-2, an essential T-cell cytokine. Specifically, Tregs inhibit the formation of a previously uncharacterized subset of antigen-stimulated KLRK1+ IL-7R+ (KILR) CD8+ effector T cells, which are distinct from conventional effector CD8+ T cells. KILR CD8+ T cells show superior cell-killing abilities in vivo. The administration of agonistic IL-2 immunocomplexes phenocopies the absence of Tregs, i.e., it induces KILR CD8+ T cells, promotes autoimmunity, and enhances antitumor responses in mice. Counterparts of KILR CD8+ T cells were found in the human blood, revealing them as a potential target for immunotherapy.
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Affiliation(s)
- Oksana Tsyklauri
- Laboratory of Adaptive Immunity, Institute of Molecular Genetics of the Czech Academy of SciencesPragueCzech Republic
- Faculty of Science, Charles UniversityPragueCzech Republic
| | - Tereza Chadimova
- Laboratory of Adaptive Immunity, Institute of Molecular Genetics of the Czech Academy of SciencesPragueCzech Republic
- Faculty of Science, Charles UniversityPragueCzech Republic
| | - Veronika Niederlova
- Laboratory of Adaptive Immunity, Institute of Molecular Genetics of the Czech Academy of SciencesPragueCzech Republic
- Faculty of Science, Charles UniversityPragueCzech Republic
| | - Jirina Kovarova
- Institute of Microbiology of the Czech Academy of SciencesPragueCzech Republic
| | - Juraj Michalik
- Laboratory of Adaptive Immunity, Institute of Molecular Genetics of the Czech Academy of SciencesPragueCzech Republic
| | - Iva Malatova
- Institute of Microbiology of the Czech Academy of SciencesPragueCzech Republic
| | - Sarka Janusova
- Laboratory of Adaptive Immunity, Institute of Molecular Genetics of the Czech Academy of SciencesPragueCzech Republic
| | - Olha Ivashchenko
- Laboratory of Adaptive Immunity, Institute of Molecular Genetics of the Czech Academy of SciencesPragueCzech Republic
| | - Helene Rossez
- Department of Biomedicine, University Hospital of BaselBaselSwitzerland
| | - Ales Drobek
- Laboratory of Adaptive Immunity, Institute of Molecular Genetics of the Czech Academy of SciencesPragueCzech Republic
| | - Hana Vecerova
- Laboratory of Adaptive Immunity, Institute of Molecular Genetics of the Czech Academy of SciencesPragueCzech Republic
| | - Virginie Galati
- Department of Biomedicine, University Hospital of BaselBaselSwitzerland
| | - Marek Kovar
- Institute of Microbiology of the Czech Academy of SciencesPragueCzech Republic
| | - Ondrej Stepanek
- Laboratory of Adaptive Immunity, Institute of Molecular Genetics of the Czech Academy of SciencesPragueCzech Republic
- Department of Biomedicine, University Hospital of BaselBaselSwitzerland
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18
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Grossman Z, Meyerhans A, Bocharov G. An integrative systems biology view of host-pathogen interactions: The regulation of immunity and homeostasis is concomitant, flexible, and smart. Front Immunol 2023; 13:1061290. [PMID: 36761169 PMCID: PMC9904014 DOI: 10.3389/fimmu.2022.1061290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 12/28/2022] [Indexed: 01/26/2023] Open
Abstract
The systemic bio-organization of humans and other mammals is essentially "preprogrammed", and the basic interacting units, the cells, can be crudely mapped into discrete sets of developmental lineages and maturation states. Over several decades, however, and focusing on the immune system, we and others invoked evidence - now overwhelming - suggesting dynamic acquisition of cellular properties and functions, through tuning, re-networking, chromatin remodeling, and adaptive differentiation. The genetically encoded "algorithms" that govern the integration of signals and the computation of new states are not fully understood but are believed to be "smart", designed to enable the cells and the system to discriminate meaningful perturbations from each other and from "noise". Cellular sensory and response properties are shaped in part by recurring temporal patterns, or features, of the signaling environment. We compared this phenomenon to associative brain learning. We proposed that interactive cell learning is subject to selective pressures geared to performance, allowing the response of immune cells to injury or infection to be progressively coordinated with that of other cell types across tissues and organs. This in turn is comparable to supervised brain learning. Guided by feedback from both the tissue itself and the neural system, resident or recruited antigen-specific and innate immune cells can eradicate a pathogen while simultaneously sustaining functional homeostasis. As informative memories of immune responses are imprinted both systemically and within the targeted tissues, it is desirable to enhance tissue preparedness by incorporating attenuated-pathogen vaccines and informed choice of tissue-centered immunomodulators in vaccination schemes. Fortunately, much of the "training" that a living system requires to survive and function in the face of disturbances from outside or within is already incorporated into its design, so it does not need to deep-learn how to face a new challenge each time from scratch. Instead, the system learns from experience how to efficiently select a built-in strategy, or a combination of those, and can then use tuning to refine its organization and responses. Efforts to identify and therapeutically augment such strategies can take advantage of existing integrative modeling approaches. One recently explored strategy is boosting the flux of uninfected cells into and throughout an infected tissue to rinse and replace the infected cells.
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Affiliation(s)
- Zvi Grossman
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD, United States
| | - Andreas Meyerhans
- Infection Biology Laboratory, Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Barcelona, Spain
- ICREA, Barcelona, Spain
| | - Gennady Bocharov
- Marchuk Institute of Numerical Mathematics, Russian Academy of Sciences, Moscow, Russia
- Institute of Computer Science and Mathematical Modeling, Sechenov First Moscow State Medical University, Moscow, Russia
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19
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Geginat J, Granucci F. Regulatory T-cell-derived interleukin-15 shapes cytotoxic T cell memory. Eur J Immunol 2023; 53:e2250238. [PMID: 36398486 DOI: 10.1002/eji.202250238] [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: 11/07/2022] [Revised: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022]
Abstract
It is well known that regulatory T-cells (Tregs) are required to prevent autoimmunity, but they may also have some less-well understood immune-stimulatory effects. In particular, in CD8+ T-cell responses Tregs select high-affinity clones upon priming and promote memory by inhibiting inflammation-dependent generation of short-lived effector cells. In the current issue of the European Journal of Immunology [Eur. J. Immunol. 2023. 53: 2149400], Madi et al. report the surprising finding that human and murine FOXP3+ Tregs are a physiologically relevant source of IL-15, a homeostatic cytokine that promotes antigen-independent maintenance of CD8+ memory T-cells. In mice that lack IL-15 selectively in FOXP3+ Tregs the authors show that the composition of the CD8+ T-cell memory pool is altered in the absence of Treg-derived IL-15, since a subset of terminally effector memory cells is drastically reduced. Otherwise Treg-derived IL-15 is dispensable for antiviral immune responses and the generation of anti-viral CD8+ memory T-cells. These findings add to our understanding of the multifaceted role of Tregs in immune responses, and how IL-15 derived from different cellular sources maintains anti-viral T-cell memory.
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Affiliation(s)
- Jens Geginat
- University of Milan, Department of Clinical Sciences and Community Health, Milan, Italy.,Fondazione Istituto Nazionale di Genetica Molecolare "Romeo ed Enrica Invernizzi", Milan, Italy
| | - Francesca Granucci
- University of Milano-Bicocca, Department of Biotechnology and Biosciences, Milan, Italy
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20
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Madi A, Wu J, Ma S, Weisshaar N, Mieg A, Hering M, Ming Y, Zettl F, Mohr K, Ten Bosch N, Schlimbach T, Hertel F, Cui G. Regulatory T cell-derived interleukin-15 promotes the diversity of immunological memory. Eur J Immunol 2023; 53:e2149400. [PMID: 36263815 DOI: 10.1002/eji.202149400] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 09/07/2022] [Accepted: 10/18/2022] [Indexed: 02/02/2023]
Abstract
While the immunosuppressive function of regulatory T (Treg) cells has been extensively studied, their immune-supportive roles have been less well investigated. Using a lymphocytic choriomeningitis virus (LCMV) Armstrong infection mouse model, we found that Treg cell-derived interleukin (IL)-15 is required for long-term maintenance of the KLRG1+ IL-7Rα- CD62L- terminal effector memory CD8+ T (tTEM) cell subset, but dispensable for the suppressive function of Treg cells themselves. In contrast, deletion of Il15 from other sources, including myeloid cells and muscles, did not affect the composition of the memory CD8+ T cell pool. Our findings identify Treg cells as an essential IL-15 source maintaining tTEM cells and suggest that Treg cells promote the diversity of immunological memory.
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Affiliation(s)
- Alaa Madi
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.,Faculty of Biosciences, Heidelberg University, 69120, Heidelberg, Germany
| | - Jingxia Wu
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Sicong Ma
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Nina Weisshaar
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Alessa Mieg
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.,Faculty of Biosciences, Heidelberg University, 69120, Heidelberg, Germany
| | - Marvin Hering
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.,Faculty of Biosciences, Heidelberg University, 69120, Heidelberg, Germany
| | - Yanan Ming
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Ferdinand Zettl
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.,Faculty of Biosciences, Heidelberg University, 69120, Heidelberg, Germany
| | - Kerstin Mohr
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Nora Ten Bosch
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.,Helmholtz Institute for Translational Oncology (HI-TRON), Mainz, Germany
| | - Tilo Schlimbach
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Franziska Hertel
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Guoliang Cui
- T Cell Metabolism Group (D192), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.,Faculty of Biosciences, Heidelberg University, 69120, Heidelberg, Germany.,Helmholtz Institute for Translational Oncology (HI-TRON), Mainz, Germany
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21
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Abdelmoneim M, Eissa IR, Aboalela MA, Naoe Y, Matsumura S, Sibal PA, Bustos-Villalobos I, Tanaka M, Kodera Y, Kasuya H. Metformin enhances the antitumor activity of oncolytic herpes simplex virus HF10 (canerpaturev) in a pancreatic cell cancer subcutaneous model. Sci Rep 2022; 12:21570. [PMID: 36513720 PMCID: PMC9747797 DOI: 10.1038/s41598-022-25065-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 11/24/2022] [Indexed: 12/15/2022] Open
Abstract
Oncolytic virus (OV) therapy is a promising cancer immunotherapy, especially for cold tumors by inducing the direct lysis of cancer cells and initiation of potent antitumor response. Canerpaturev (C-REV) is an attenuated oncolytic herpes simplex virus-1, which demonstrated a potent antitumor effect in various preclinical models when used either alone or combined. Metformin is a commonly prescribed antidiabetic drug that demonstrated a potent immune modulator effect and antitumor response. We combined C-REV with metformin in a low immunogenic bilateral murine tumor model to enhance C-REV's antitumor efficacy. In vitro, metformin does not enhance the C-REV cell cytotoxic effect. However, in in vivo model, intratumoral administration of C-REV with the systemic administration of metformin led to synergistic antitumor effect on both sides of tumor and prolonged survival. Moreover, combination therapy increased the effector CD44+ CD8+ PD1- subset and decreased the proportion of terminally-differentiated CD103+ KLRG-1+ T-regulatory cells on both sides of tumor. Interestingly, combination therapy efficiently modulates conventional dendritic cells type-1 (cDC1) on tumors, and tumor-drained lymph nodes. Our findings suggest that combination of C-REV and metformin enhances systemic antitumor immunity. This study may provide insights into the mechanism of action of OV therapy plus metformin combination against various tumor models.
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Affiliation(s)
- Mohamed Abdelmoneim
- grid.27476.300000 0001 0943 978XGraduate School of Medicine, Cancer Immune Therapy Research Center, Nagoya University, Nagoya, Japan ,grid.27476.300000 0001 0943 978XDepartment of Surgery II, Graduate School of Medicine, Nagoya University, Nagoya, Japan ,grid.31451.320000 0001 2158 2757Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Ibrahim Ragab Eissa
- grid.27476.300000 0001 0943 978XGraduate School of Medicine, Cancer Immune Therapy Research Center, Nagoya University, Nagoya, Japan ,grid.27476.300000 0001 0943 978XDepartment of Surgery II, Graduate School of Medicine, Nagoya University, Nagoya, Japan ,grid.412258.80000 0000 9477 7793Faculty of Science, Tanta University, Tanta, Egypt
| | - Mona Alhussein Aboalela
- grid.27476.300000 0001 0943 978XGraduate School of Medicine, Cancer Immune Therapy Research Center, Nagoya University, Nagoya, Japan ,grid.27476.300000 0001 0943 978XDepartment of Surgery II, Graduate School of Medicine, Nagoya University, Nagoya, Japan ,grid.31451.320000 0001 2158 2757Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Yoshinori Naoe
- grid.27476.300000 0001 0943 978XGraduate School of Medicine, Cancer Immune Therapy Research Center, Nagoya University, Nagoya, Japan
| | - Shigeru Matsumura
- grid.27476.300000 0001 0943 978XGraduate School of Medicine, Cancer Immune Therapy Research Center, Nagoya University, Nagoya, Japan
| | - Patricia Angela Sibal
- grid.27476.300000 0001 0943 978XGraduate School of Medicine, Cancer Immune Therapy Research Center, Nagoya University, Nagoya, Japan
| | - Itzel Bustos-Villalobos
- grid.27476.300000 0001 0943 978XGraduate School of Medicine, Cancer Immune Therapy Research Center, Nagoya University, Nagoya, Japan
| | - Maki Tanaka
- grid.410820.fTakara Bio Inc., Kusatsu, Shiga Japan
| | - Yasuhiro Kodera
- grid.27476.300000 0001 0943 978XDepartment of Surgery II, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Hideki Kasuya
- grid.27476.300000 0001 0943 978XGraduate School of Medicine, Cancer Immune Therapy Research Center, Nagoya University, Nagoya, Japan
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22
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Xu C, Ma M, Yi Y, Yi C, Dai H. Clinical features and high-resolution chest computerized tomography findings of children infected by the B.1.617.2 variant of coronavirus disease 2019. Ann Med 2022; 54:2391-2401. [PMID: 36039499 PMCID: PMC9448437 DOI: 10.1080/07853890.2022.2114608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
PURPOSE To analyse the clinical symptoms, laboratory examinations and chest CT findings of children infected by the B.1.617.2 variant of COVID-19 and to compare the differences between clinical subtypes. METHODS Fifty-three children (28 males, 25 females; age ranging from 4 months to 17 years) were included with B.1.617.2 variant infection in Nanjing, China, from July 21 to August 12 2021. Clinical data from patients were collected and analysed in groups of mild and common types. Imaging data were divided into three stages for evaluation: early, intermediate and late stages. RESULTS In our study, fever (53%), cough (34%) and pharyngeal discomfort (28%) were the main symptoms. There were no differences in clinical symptoms between the mild and common type. The most common laboratory test items outside the normal range were decreased mean corpuscular volume (68%), lymphocyte percentage (64% elevated and 2% decreased) and decreased serum alkaline phosphatase concentration (66%). The differences in haemoglobin and monocyte percentages between the mild and common types were statistically significant (p = .037 and .033, respectively). No influencing factor was statistically significant in the regression analysis of both symptoms and clinical subtypes. The main CT findings were ground-glass opacity and consolidation located in the periphery and bilateral multilobed involvement. The mean CT score was 1.6. CT score correlated with packet cell volume, haemoglobin, mean erythrocyte volume, mean platelet volume and platelet distribution width. CONCLUSION The pathogenetic condition of children with B.1.617.2 variant infection is mild. Although there were intergroup differences in some blood cell analyses, T-lymphocyte counts, and comprehensive biochemical indicators, no factors had a significant effect on clinical typing and the presence or absence of symptoms. CT findings and CT scores reflect disease stage and pathological changes and correlate moderately with laboratory tests, making them of good value for disease diagnosis and monitoring.Key MessagesPaediatric patients infected with B.1.617.2 variant have a milder clinical and imaging presentation than adults and are similar to the prototype infection.CT findings and scores which reflect disease stages and pathological changes.There is a correlation between chest CT and laboratory tests, which can be useful for the diagnosis and follow-up of the disease.
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Affiliation(s)
- Chuanjun Xu
- Department of Radiology, The Second Hospital of Nanjing Nanjing University of Chinese Medicine, Nanjing, P.R. China
| | - Mengya Ma
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China.,Institute of Medical Imaging, Soochow University, Suzhou, P.R. China
| | - Yongxiang Yi
- Nanjing Infectious Disease Center, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, P.R. China
| | - Changhua Yi
- Nanjing Infectious Diseases Clinical Medical Center, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, P.R. China
| | - Hui Dai
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China.,Institute of Medical Imaging, Soochow University, Suzhou, P.R. China
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23
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Kim KS. Regulation of T cell repertoires by commensal microbiota. Front Cell Infect Microbiol 2022; 12:1004339. [PMID: 36310871 PMCID: PMC9606468 DOI: 10.3389/fcimb.2022.1004339] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/20/2022] [Indexed: 11/25/2022] Open
Abstract
The gut microbiota plays an important role in regulating the host immune systems. It is well established that various commensal microbial species can induce the differentiation of CD4+ T helper subsets such as Foxp3+ regulatory T (Treg) cells and Th17 cells in antigen-dependent manner. The ability of certain microbial species to induce either Treg cells or Th17 cells is often linked to the altered susceptibility to certain immune disorders that are provoked by aberrant T cell response against self-antigens. These findings raise an important question as to how gut microbiota can regulate T cell repertoire and the activation of autoreactive T cells. This review will highlight microbiota-dependent regulation of thymic T cell development, maintenance of T cell repertoire in the secondary lymphoid tissues and the intestine, and microbiota-mediated modulation of autoreactive and tumor neoantigen-specific T cells in autoimmune diseases and tumors, respectively.
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24
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Molony RD, Funk T, Trabucco G, Corcoran E, Ruddy D, Varadarajan M, Elliot G, Piquet M, Lam J, Meyer MJ, Wang HQ, Kurtulus S, Lu H. CRISPR screening identifies T cell-intrinsic regulators of CD3-bispecific antibody responses. Front Immunol 2022; 13:909979. [PMID: 35990699 PMCID: PMC9388929 DOI: 10.3389/fimmu.2022.909979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
CD3-engaging bispecific antibodies (BsAbs) enable the formation of an immune synapse between T cells and tumor cells, resulting in robust target cell killing not dependent on a preexisting tumor specific T cell receptor. While recent studies have shed light on tumor cell-specific factors that modulate BsAb sensitivity, the T cell-intrinsic determinants of BsAb efficacy and response durability are poorly understood. To better clarify the genes that shape BsAb-induced T cell responses, we conducted targeted analyses and a large-scale unbiased in vitro CRISPR/Cas9-based screen to identify negative regulators of BsAb-induced T cell proliferation. These analyses revealed that CD8+ T cells are dependent on CD4+ T cell-derived signaling factors in order to achieve sustained killing in vitro. Moreover, the mammalian target of rapamycin (mTOR) pathway and several other candidate genes were identified as intrinsic regulators of BsAb-induced T cell proliferation and/or activation, highlighting promising approaches to enhancing the utility of these potent therapeutics.
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25
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Gonçalves JIB, Borges TJ, de Souza APD. Microbiota and the Response to Vaccines Against Respiratory Virus. Front Immunol 2022; 13:889945. [PMID: 35603203 PMCID: PMC9122122 DOI: 10.3389/fimmu.2022.889945] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/12/2022] [Indexed: 11/13/2022] Open
Abstract
This mini review describes the role of gut and lung microbiota during respiratory viral infection and discusses the implication of the microbiota composition on the immune responses generated by the vaccines designed to protect against these pathogens. This is a growing field and recent evidence supports that the composition and function of the microbiota can modulate the immune response of vaccination against respiratory viruses such as influenza and SARS-CoV-2. Recent studies have highlighted that molecules derived from the microbiome can have systemic effects, acting in distant organs. These molecules are recognized by the immune cells from the host and can trigger or modulate different responses, interfering with vaccination protection. Modulating the microbiota composition has been suggested as an approach to achieving more efficient protective immune responses. Studies in humans have reported associations between a better vaccine response and specific bacterial taxa. These associations vary among different vaccine strategies and are likely to be context-dependent. The use of prebiotics and probiotics in conjunction with vaccination demonstrated that bacterial components could act as adjuvants. Future microbiota-based interventions may potentially improve and optimize the responses of respiratory virus vaccines.
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Affiliation(s)
- João I. B. Gonçalves
- Laboratory of Clinical and Experimental Immunology, Health and Life Science School - Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
- Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Thiago J. Borges
- Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Ana Paula Duarte de Souza
- Laboratory of Clinical and Experimental Immunology, Health and Life Science School - Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
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26
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Sun X, Chi H. Tregs tango with killer cells in acute infection. Proc Natl Acad Sci U S A 2022; 119:e2202400119. [PMID: 35312353 PMCID: PMC9060493 DOI: 10.1073/pnas.2202400119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Xiang Sun
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105
| | - Hongbo Chi
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105
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27
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Developmentally distinct CD4 + T reg lineages shape the CD8 + T cell response to acute Listeria infection. Proc Natl Acad Sci U S A 2022; 119:e2113329119. [PMID: 35239442 PMCID: PMC8915796 DOI: 10.1073/pnas.2113329119] [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] [Indexed: 12/15/2022] Open
Abstract
The CD4+ Treg response following acute Listeria infection is heterogeneous and deploys two distinct modes of suppression coinciding with initial pathogen exposure and resolution of infection. This bimodal suppression of CD8+ T cells during priming and contraction is mediated by separate Treg lineages. These findings make a significant contribution to our understanding of the functional plasticity inherent within Tregs, which allows these cells to serve as a sensitive and dynamic cellular rheostat for the immune system to prevent autoimmune pathology in the face of inflammation attendant to acute infection, enable expansion of the pathogen-specific response needed to control the infection, and reestablish immune homeostasis after the threat has been contained. CD4+ regulatory T cells (Tregs) must prevent immunopathology by cytotoxic CD8+ T lymphocytes (CTLs) responding to acute infection and restore immune homeostasis following pathogen clearance, yet little is known about the specific populations or mechanisms governing these discrete events. We found that acute Listeria monocytogenes (L. monocytogenes) infection produces a phenotypically and functionally complex Treg response comprising two separate suppressor cell subpopulations, with an early Treg peak occurring at 24 h postinfection and a later peak arising by day 7. The first wave of Tregs suppress primary CTL expansion via a contact-independent mechanism involving CD73-derived adenosine (Ado) production from extracellular adenosine monophosphate (5′-AMP), while the second originates from different precursors and acts throughout the contraction phase via contact-dependent gap junction transfer of 3′,5′-cyclic adenosine monophosphate (cAMP)—both potent inhibitors of T cell proliferation. We speculate that the early activation of CD73 on Tregs is enhanced in inflamed tissues due to high purine release from apoptotic cells, whereas late-phase gap junction–dependent Tregs rely more on cell number and less on tissue inflammation. This study importantly reveals that CTL priming and contraction phases are separately fine-tuned by developmentally distinct Treg lineages during an acute infection.
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Regulation of tissue-resident memory T cells by the Microbiota. Mucosal Immunol 2022; 15:408-417. [PMID: 35194180 PMCID: PMC9063729 DOI: 10.1038/s41385-022-00491-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 01/24/2022] [Accepted: 01/27/2022] [Indexed: 02/04/2023]
Abstract
Resident memory T cells (Trms) predominantly reside within tissue and are critical for providing rapid protection against invasive viruses, fungi and bacteria. Given that tissues are heavily impacted and shaped by the microbiota, it stands to reason that Trms are also influenced by the microbiota that inhabits barrier sites. The influence of the microbiota is largely mediated by microbial production of metabolites which are crucial to the immune response to both viral infection and cancerous tumors. In addition to the effects of metabolites, antigens derived from the microbiota can activate T cell responses. While microbiota-specific T cells may assist in tissue repair, control of infection and anti-tumor immunity, the actual 'memory' potential of these cells remains unclear. Here, we hypothesize that memory responses to antigens from the microbiota must be 'licensed' by inflammatory signals activated by invasion of the host by microorganisms.
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29
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Mahmoudi M, Rastin M, Kazemi Arababadi M, Anaeigoudari A, Nosratabadi R. Enhancing the efficacy of Hypericum perforatum in the treatment of an experimental model of multiple sclerosis using gold nanoparticles: an in vivo study. AVICENNA JOURNAL OF PHYTOMEDICINE 2022; 12:325-336. [PMID: 36186934 PMCID: PMC9482707 DOI: 10.22038/ajp.2022.19574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/22/2021] [Accepted: 11/22/2021] [Indexed: 11/06/2022]
Abstract
Objective Hypericum perforatum is a herbal medicine used in traditional medicine for the treatment of depression due to its antidepressant and anti-inflammatory activities. Therefore, we evaluated the therapeutic efficacy of H. perforatum extract (HPE) in combination with gold nanoparticles (HPE-GNP) against experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis. Materials and Methods EAE was induced in C57BL/6 mice with subcutaneous injection of MOG35-55 emulsified in complete Freund's adjuvant, and intraperitoneal pertussis toxin. Mice were treated with drugs in free (HPE) and nano-form (HPE-GNP) preparations. Splenocytes were isolated from all mice and the level of inflammatory and anti-inflammatory cytokines were evaluated by ELISA. The expression of T cells' transcription factors was also assessed using Real-Time PCR. Results Clinical score was reduced after HPE-GNP treatment. This change was associated with a decrease in the incidence and infiltration of inflammatory cells into the central nervous system. Additionally, treatment with HPE-GNP decreased the level of pro-inflammatory cytokines (IFN-γ, IL-17A and IL-6) and increased anti-inflammatory cytokines (TGF-β, IL-10 and IL-4). The real-time analysis revealed a decrease in the level of T-bet and ROR-γt but an increase in FoxP3 and GATA3 expression. Conclusion The current study demonstrated that HPE-GNP could potentially reduce clinical and pathological complications of EAE, but laboratory data showed that HPE-GNP was significantly more effective than HPE in the treatment of EAE.
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Affiliation(s)
- Mahmoud Mahmoudi
- Immunology Research Center, Department of Immunology and Allergy, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Rastin
- Immunology Research Center, Department of Immunology and Allergy, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Kazemi Arababadi
- Department of Laboratory Sciences, Faculty of Paramedicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran,Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Akbar Anaeigoudari
- Department of Physiology, School of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Reza Nosratabadi
- Department of Medical Immunology, Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran,Corresponding Author: Tel: +98-9137317876, Fax: +03433257660,
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30
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Kok L, Masopust D, Schumacher TN. The precursors of CD8 + tissue resident memory T cells: from lymphoid organs to infected tissues. Nat Rev Immunol 2022; 22:283-293. [PMID: 34480118 PMCID: PMC8415193 DOI: 10.1038/s41577-021-00590-3] [Citation(s) in RCA: 85] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2021] [Indexed: 02/08/2023]
Abstract
CD8+ tissue resident memory T cells (TRM cells) are essential for immune defence against pathogens and malignancies, and the molecular processes that lead to TRM cell formation are therefore of substantial biomedical interest. Prior work has demonstrated that signals present in the inflamed tissue micro-environment can promote the differentiation of memory precursor cells into mature TRM cells, and it was therefore long assumed that TRM cell formation adheres to a 'local divergence' model, in which TRM cell lineage decisions are exclusively made within the tissue. However, a growing body of work provides evidence for a 'systemic divergence' model, in which circulating T cells already become preconditioned to preferentially give rise to the TRM cell lineage, resulting in the generation of a pool of TRM cell-poised T cells within the lymphoid compartment. Here, we review the emerging evidence that supports the existence of such a population of circulating TRM cell progenitors, discuss current insights into their formation and highlight open questions in the field.
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Affiliation(s)
- Lianne Kok
- grid.430814.a0000 0001 0674 1393Division of Molecular Oncology & Immunology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - David Masopust
- grid.17635.360000000419368657Department of Microbiology and Immunology, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN USA
| | - Ton N. Schumacher
- grid.430814.a0000 0001 0674 1393Division of Molecular Oncology & Immunology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
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31
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Regulatory T Cells in acute and chronic human Chikungunya infection. Microbes Infect 2021; 24:104927. [PMID: 34923142 DOI: 10.1016/j.micinf.2021.104927] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/13/2021] [Indexed: 11/23/2022]
Abstract
Chikungunya virus (CHIKV) infection generates strong immune responses that are associated with the disease pathophysiology. Regulatory T cells (Treg-cluster of differentiation (CD)-4+CD25highforkhead box P3 (FOXP3+)) are essential for the induction and maintenance of peripheral tolerance. Thus, they play key roles in determining the patient prognosis by preventing excessive immune responses via different suppression immune mechanisms. However, the regulatory mechanisms involved in human CHIKV infection are still poorly understood. Here, we characterize for the first time the Treg cell molecule-associated-mechanism during acute and chronic human Chikungunya disease. Here, we assessed the Treg cell population and molecule-associated mechanism in the peripheral blood samples of acute and chronic patients with Chikungunya. Our results indicate that CHIKV infection is associated with reduced frequency of Tregs, along with the impaired expression and production of Treg functional markers, including CD39, CD73, perforin, granzyme, programmed death 1 (PD-1), cytotoxic T lymphocyte antigen (CTLA)-4, and transforming growth factor (TGF)-β. This observation suggests that Treg cells possess poor regulatory capacity in both acute and chronic phases of the disease. Taken together, these data provide significant evidence that the imbalanced response of Treg cells plays an essential role in establishing the pathogenesis of Chikungunya.
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Interleukin-10 receptor signaling promotes the maintenance of a PD-1 int TCF-1 + CD8 + T cell population that sustains anti-tumor immunity. Immunity 2021; 54:2825-2841.e10. [PMID: 34879221 DOI: 10.1016/j.immuni.2021.11.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 03/26/2021] [Accepted: 11/09/2021] [Indexed: 12/20/2022]
Abstract
T cell exhaustion limits anti-tumor immunity and responses to immunotherapy. Here, we explored the microenvironmental signals regulating T cell exhaustion using a model of chronic lymphocytic leukemia (CLL). Single-cell analyses identified a subset of PD-1hi, functionally impaired CD8+ T cells that accumulated in secondary lymphoid organs during disease progression and a functionally competent PD-1int subset. Frequencies of PD-1int TCF-1+ CD8+ T cells decreased upon Il10rb or Stat3 deletion, leading to accumulation of PD-1hi cells and accelerated tumor progression. Mechanistically, inhibition of IL-10R signaling altered chromatin accessibility and disrupted cooperativity between the transcription factors NFAT and AP-1, promoting a distinct NFAT-associated program. Low IL10 expression or loss of IL-10R-STAT3 signaling correlated with increased frequencies of exhausted CD8+ T cells and poor survival in CLL and in breast cancer patients. Thus, balance between PD-1hi, exhausted CD8+ T cells and functional PD-1int TCF-1+ CD8+ T cells is regulated by cell-intrinsic IL-10R signaling, with implications for immunotherapy.
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Pace L. Temporal and Epigenetic Control of Plasticity and Fate Decision during CD8 + T-Cell Memory Differentiation. Cold Spring Harb Perspect Biol 2021; 13:a037754. [PMID: 33972365 PMCID: PMC8635004 DOI: 10.1101/cshperspect.a037754] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Immunological memory is a fundamental hallmark of the adaptive immune responses and one of the most relevant aspects of protective immunity. Our understanding of the processes of memory T-cell differentiation and maintenance of long-term immunity is continuously evolving, and recent advances highlight new regulatory networks and chromatin dynamic changes contributing to maintain T-cell identity and impeding the reprogramming of specific T-cell states. Here, the current understanding of the mechanisms that generate the diversity and the heterogeneity of CD8+ T-cell subsets will be discussed, focusing on the temporal and epigenetic mechanisms orchestrating the establishment and maintenance of distinct states of T-cell fate determination and functional commitment.
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Affiliation(s)
- Luigia Pace
- Armenise-Harvard Immune Regulation Unit, IIGM
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo (TO) 10060, Italy
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Smith PL, Piadel K, Dalgleish AG. Directing T-Cell Immune Responses for Cancer Vaccination and Immunotherapy. Vaccines (Basel) 2021; 9:1392. [PMID: 34960140 PMCID: PMC8708201 DOI: 10.3390/vaccines9121392] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 12/21/2022] Open
Abstract
Cancer vaccination and immunotherapy revolutionised the treatment of cancer, a result of decades of research into the immune system in health and disease. However, despite recent breakthroughs in treating otherwise terminal cancer, only a minority of patients respond to cancer immunotherapy and some cancers are largely refractive to immunotherapy treatment. This is due to numerous issues intrinsic to the tumour, its microenvironment, or the immune system. CD4+ and CD8+ αβ T-cells emerged as the primary effector cells of the anti-tumour immune response but their function in cancer patients is often compromised. This review details the mechanisms by which T-cell responses are hindered in the setting of cancer and refractive to immunotherapy, and details many of the approaches under investigation to direct T-cell function and improve the efficacy of cancer vaccination and immunotherapy.
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Affiliation(s)
- Peter Lawrence Smith
- Institute of Infection and Immunity, St. Georges University of London, London SW17 0RE, UK; (K.P.); (A.G.D.)
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de Freitas DDN, Marinho Franceschina C, Muller D, Hilario GT, Gassen RB, Fazolo T, de Lima Kaminski V, Bogo Chies JA, Maito F, Antunes KH, Zanin RF, Rodrigues LC, Duarte de Souza AP. RvD1 treatment during primary infection modulates memory response increasing viral load during respiratory viral reinfection. Immunobiology 2021; 226:152151. [PMID: 34742024 DOI: 10.1016/j.imbio.2021.152151] [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: 03/30/2021] [Revised: 10/22/2021] [Accepted: 10/23/2021] [Indexed: 11/25/2022]
Abstract
Resolvin D1 (RvD1), which is biosynthesized from essential long-chain fatty acids, is involved in anti-inflammatory activity and modulation of T cell response. Memory CD8+ T cells are important for controlling tumor growth and viral infections. Exacerbated inflammation has been described as impairing memory CD8+ T cell differentiation. This study aimed to verify the effects of RvD1 on memory CD8+ T cells in vitro and in vivo in a respiratory virus infection model. Peripheral blood mononuclear cells were treated at different time points with RvD1 and stimulated with anti-CD3/anti-CD28 antibodies. Pre-treatment with RvD1 increases the expansion of memory CD8+ T cells. The IL-12 level, a cytokine described to control memory CD8+ T cells, was reduced with RvD1 pre-treatment. When the mTOR axis was inhibited, the IL-12 levels were restored. In a respiratory virus infection model, Balb/c mice were treated with RvD1 before infection or after 7 days after infection. RvD1 treatment after infection increased the frequency of memory CD8+ T cells in the lung expressing II4, II10, and Ifng. During reinfection, RvD1-treated and RSV-infected mice present a high viral load in the lung and lower antibody response in the serum. Our results show that RvD1 modulates the expansion and phenotype of memory CD8+ T cells but contributed to a non-protective response after RSV reinfection.
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Affiliation(s)
- Deise do Nascimento de Freitas
- Laboratory of Clinical and Experimental Immunology, School of Health and Life Science, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | - Caroline Marinho Franceschina
- Laboratory of Clinical and Experimental Immunology, School of Health and Life Science, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | - Douglas Muller
- Federal University of Health Sciences of Porto Alegre (UFSCPA), Porto Alegre, RS, Brazil
| | - Gabriel T Hilario
- Federal University of Health Sciences of Porto Alegre (UFSCPA), Porto Alegre, RS, Brazil
| | - Rodrigo B Gassen
- Schuster Family Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Tiago Fazolo
- Federal University of Health Sciences of Porto Alegre (UFSCPA), Porto Alegre, RS, Brazil
| | - Valéria de Lima Kaminski
- Applied Immunology Laboratory, Postgraduate Program in Biotechnology, Institute of Science and Technology - ICT, Federal University of São Paulo - UNIFESP, Brazil
| | - José Artur Bogo Chies
- Laboratory of Immunogenetics and Immunobiology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Fábio Maito
- Laboratory of Histology, School of Health and Life Science, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre 90610-000, RS, Brazil
| | - Krist Helen Antunes
- Laboratory of Clinical and Experimental Immunology, School of Health and Life Science, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil; Infant Center, School of Medicine PUCRS, Porto Alegre, RS, Brazil
| | - Rafael F Zanin
- Department of Health and Human Development, La Salle University, Canoas, RS, Brazil
| | - Luiz Carlos Rodrigues
- Federal University of Health Sciences of Porto Alegre (UFSCPA), Porto Alegre, RS, Brazil
| | - Ana Paula Duarte de Souza
- Laboratory of Clinical and Experimental Immunology, School of Health and Life Science, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil; Infant Center, School of Medicine PUCRS, Porto Alegre, RS, Brazil.
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Rasquinha MT, Sur M, Lasrado N, Reddy J. IL-10 as a Th2 Cytokine: Differences Between Mice and Humans. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 207:2205-2215. [PMID: 34663593 PMCID: PMC8544817 DOI: 10.4049/jimmunol.2100565] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/10/2021] [Indexed: 02/06/2023]
Abstract
The discovery of IL-10 more than 30 years ago marked the beginning of our understanding of how cytokines regulate immune responses, based on cross-regulation between Th1 and Th2 cytokines. Although multiple cell types were shown to produce IL-10, its identity as a Th2 cytokine remained strong because it was rigidly associated with Th2 clones in mice, whereas both Th1 and Th2 clones could secrete IL-10 in humans. However, as new Th1/Th2 cell functionalities emerged, anti-inflammatory action of IL-10 gained more attention than its inhibitory effect on Th1 cells, which may occur as an indirect consequence of suppression of APCs. This notion is also supported by the discovery of regulatory T cells, whose suppressor functions involve the mediation of IL-10, among other molecules. From this perspective, we discuss the functionalities of IL-10 by highlighting important differences between mice and humans with an emphasis on the Th1 and Th2 paradigm.
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Affiliation(s)
- Mahima T Rasquinha
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE
| | - Meghna Sur
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE
| | - Ninaad Lasrado
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE
| | - Jay Reddy
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE
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Öcal S. SARS-CoV-2 and lung injury: Dysregulation of immune response but not hyperimmune response as in "cytokine storm syndrome". CLINICAL RESPIRATORY JOURNAL 2021; 16:13-16. [PMID: 34674363 PMCID: PMC8653083 DOI: 10.1111/crj.13455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 09/02/2021] [Accepted: 10/19/2021] [Indexed: 12/01/2022]
Abstract
SARS‐CoV‐2 infection can present either an asymptomatic or symptomatic; the spectrum of symptomatic infection ranges from mild to critical. A majority of patients have experienced mild symptoms with a good prognosis. But approximately 14% of them have severe infection presenting with hypoxemia and extensive lung involvement. The current mini‐review describes the dysregulation of immune response for SARS‐CoV‐2 viral pneumonia and virus‐induced lung injury. Also, many confounding factors can increase lung injury, in addition to virus‐induced lung injury. Especially in critically ill patients, confounding factors can cause the inflammatory cascade, acute respiratory distress syndrome (ARDS), and mortality.
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Affiliation(s)
- Serpil Öcal
- Department of Internal Medicine, Medical Intensive Care Unit, Hacettepe University Faculty of Medicine, Ankara, Turkey
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38
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Kalia V, Yuzefpolskiy Y, Vegaraju A, Xiao H, Baumann F, Jatav S, Church C, Prlic M, Jha A, Nghiem P, Riddell S, Sarkar S. Metabolic regulation by PD-1 signaling promotes long-lived quiescent CD8 T cell memory in mice. Sci Transl Med 2021; 13:eaba6006. [PMID: 34644150 DOI: 10.1126/scitranslmed.aba6006] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Vandana Kalia
- Division of Hematology and Oncology, Department of Pediatrics, University of Washington School of Medicine, Seattle, WA 98195, USA.,Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Yevgeniy Yuzefpolskiy
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Adithya Vegaraju
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Hanxi Xiao
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Florian Baumann
- QIAGEN Sciences LLC, 19300 Germantown Rd, Germantown, MD 20874, USA
| | | | - Candice Church
- Dermatology Division, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA
| | - Martin Prlic
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.,Department of Pathology, University of Washington School of Medicine, Seattle, WA 98195, USA.,Department of Global Health, University of Washington School of Medicine, Seattle, WA 98195, USA
| | | | - Paul Nghiem
- Dermatology Division, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Stanley Riddell
- 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
| | - Surojit Sarkar
- Division of Hematology and Oncology, Department of Pediatrics, University of Washington School of Medicine, Seattle, WA 98195, USA.,Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, WA 98101, USA.,Department of Pathology, University of Washington School of Medicine, Seattle, WA 98195, USA
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39
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Kalia V, Studzinski GP, Sarkar S. Role of vitamin D in regulating COVID-19 severity-An immunological perspective. J Leukoc Biol 2021; 110:809-819. [PMID: 33464639 PMCID: PMC8014852 DOI: 10.1002/jlb.4covr1020-698r] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/30/2020] [Accepted: 12/30/2020] [Indexed: 12/23/2022] Open
Abstract
Vitamin D, a key nutrient/prohormone classically associated with skeletal health, is also an important immunomodulator, with pleotropic effects on innate and adaptive immune cells. Outcomes of several chronic, autoimmune, and infectious diseases are linked to vitamin D. Emergent correlations of vitamin D insufficiency with coronavirus-induced disease 2019 (COVID-19) severity, alongside empirical and clinical evidence of immunoregulation by vitamin D in other pulmonary diseases, have prompted proposals of vitamin D supplementation to curb the COVID-19 public health toll. In this review paper, we engage an immunological lens to discuss potential mechanisms by which vitamin D signals might regulate respiratory disease severity in severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) infections, vis a vis other pulmonary infections. It is proposed that vitamin D signals temper lung inflammatory cascades during SARS-CoV2 infection, and insufficiency of vitamin D causes increased inflammatory cytokine storm, thus leading to exacerbated respiratory disease. Additionally, analogous to studies of reduced cancer incidence, the dosage of vitamin D compounds administered to patients near the upper limit of safety may serve to maximize immune health benefits and mitigate inflammation and disease severity in SARS-CoV2 infections. We further deliberate on the importance of statistically powered clinical correlative and interventional studies, and the need for in-depth basic research into vitamin D-dependent host determinants of respiratory disease severity.
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Affiliation(s)
- Vandana Kalia
- Department of Pediatrics, Division of Hematology and Oncology, University of Washington School of Medicine, Seattle, Washington, USA
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, Washington, USA
| | - George P Studzinski
- Department of Pathology, New Jersey Medical School, Rutgers University, Newark, New Jersey, USA
| | - Surojit Sarkar
- Department of Pediatrics, Division of Hematology and Oncology, University of Washington School of Medicine, Seattle, Washington, USA
- Ben Towne Center for Childhood Cancer Research, Seattle Children's Research Institute, Seattle, Washington, USA
- Department of Pathology, University of Washington School of Medicine, Seattle, Washington, USA
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40
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Czarnowicki T, Kim HJ, Villani AP, Glickman J, Duca ED, Han J, Pavel AB, Lee BH, Rahman AH, Merad M, Krueger JG, Guttman‐Yassky E. High-dimensional analysis defines multicytokine T-cell subsets and supports a role for IL-21 in atopic dermatitis. Allergy 2021; 76:3080-3093. [PMID: 33818809 DOI: 10.1111/all.14845] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/12/2021] [Accepted: 01/17/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Flow cytometry is a well-accepted approach for immune profiling; however, its value is restricted by the limited number of markers that can be analyzed simultaneously. Mass cytometry/CyTOF offers broad-scale immune characterization integrating large number of parameters. While partial blood phenotyping was reported in atopic dermatitis (AD), patients' comprehensive profiling, critical for leveraging new targeted treatments, is not available. IL-21 may be involved in inflammatory skin diseases but its role in AD is not well established. METHODS We studied T-cell polarization in the blood of 20 moderate-to-severe AD and 15 controls. Using CyTOF and an unsupervised analysis, we measured the frequencies and mean metal intensities of activated polar CD4+ /CD8+ T-cell subsets. Immunohistochemistry, immunofluorescence, and qRT-PCR were used to analyze skin samples. RESULTS Examining 24 surface, intracellular markers, and transcription factors, we identified six CD4+ and five CD8+ T-cell metaclusters. A CD4+ skin-homing IL-13+ monocytokine and a novel IL-13+ IL-21+ multicytokine metaclusters were increased in AD vs. controls (p < .01). While IL-13 signature characterized both clusters, levels were significantly higher in the IL-21+ group. Both clusters correlated with AD severity (r = 0.49, p = .029). Manual gating corroborated these results and identified additional multicytokine subsets in AD. Immunohistochemistry and immunofluorescence, validated by mRNA expression, displayed significantly increasedIL-21 counts and colocalization with IL-13/IL-4R in AD skin. CONCLUSION A multicytokine signature characterizes moderate-to-severe AD, possibly explaining partial therapeutic responses to one cytokine targeting, particularly in severe patients. Prominent IL-21 signature in blood and skin hints for a potential pathogenic role of IL-21 in AD.
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Affiliation(s)
- Tali Czarnowicki
- Department of Dermatology and the Immunology Institute Icahn School of Medicine at Mount Sinai New York NY USA
- Laboratory for Investigative Dermatology The Rockefeller University New York NY USA
| | - Hyun Je Kim
- Department of Dermatology and the Immunology Institute Icahn School of Medicine at Mount Sinai New York NY USA
| | - Axel P. Villani
- Department of Dermatology and the Immunology Institute Icahn School of Medicine at Mount Sinai New York NY USA
| | - Jacob Glickman
- Department of Dermatology and the Immunology Institute Icahn School of Medicine at Mount Sinai New York NY USA
| | - Ester Del Duca
- Department of Dermatology and the Immunology Institute Icahn School of Medicine at Mount Sinai New York NY USA
| | - Joseph Han
- Department of Dermatology and the Immunology Institute Icahn School of Medicine at Mount Sinai New York NY USA
| | - Ana B. Pavel
- Department of Dermatology and the Immunology Institute Icahn School of Medicine at Mount Sinai New York NY USA
| | - Brian H. Lee
- Human Immune Monitoring Center Icahn School of Medicine at Mt. Sinai New York NY USA
| | - Adeeb H. Rahman
- Human Immune Monitoring Center Icahn School of Medicine at Mt. Sinai New York NY USA
- Department of Genetics and Genomic Sciences Icahn School of Medicine at Mount Sinai New York NY USA
| | - Miriam Merad
- Department of Oncological Sciences Icahn School of Medicine at Mount Sinai New York NY USA
- Icahn School of Medicine at Mount Sinai The Precision Immunology Institute New York NY USA
- Icahn School of Medicine at Mount Sinai The Tisch Cancer Institute New York NY USA
| | - James G. Krueger
- Laboratory for Investigative Dermatology The Rockefeller University New York NY USA
| | - Emma Guttman‐Yassky
- Department of Dermatology and the Immunology Institute Icahn School of Medicine at Mount Sinai New York NY USA
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Abstract
Immunological memory and exhaustion are fundamental features of adaptive immunity. Recent advances reveal increasing heterogeneity and diversity among CD8 T-cell subsets, resulting in new subsets to annotate and understand. Here, we review our current knowledge of differentiation and maintenance of memory and exhausted CD8 T cells, including phenotypic classification, developmental paths, transcriptional and epigenetic features, and cell intrinsic and extrinsic factors. Additionally, we use this outline to discuss the nomenclature of effector, memory, and exhausted CD8 T cells. Finally, we discuss how new findings about these cell types may impact the therapeutic efficacy and development of immunotherapies targeting effector, memory, and/or exhausted CD8 T cells in chronic infections and cancer.
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Affiliation(s)
- Yuki Muroyama
- Institute for Immunology
- Department of Systems Pharmacology and Translational Therapeutics
| | - E John Wherry
- Institute for Immunology
- Department of Systems Pharmacology and Translational Therapeutics
- Abramson Cancer Center
- Parker Institute for Cancer Immunotherapy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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42
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Son YM, Sun J. Co-Ordination of Mucosal B Cell and CD8 T Cell Memory by Tissue-Resident CD4 Helper T Cells. Cells 2021; 10:cells10092355. [PMID: 34572004 PMCID: PMC8471972 DOI: 10.3390/cells10092355] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 12/25/2022] Open
Abstract
Adaptive cellular immunity plays a major role in clearing microbial invasion of mucosal tissues in mammals. Following the clearance of primary pathogens, memory lymphocytes are established both systemically and locally at pathogen entry sites. Recently, resident memory CD8 T and B cells (TRM and BRM respectively), which are parked mainly in non-lymphoid mucosal tissues, were characterized and demonstrated to be essential for protection against secondary microbial invasion. Here we reviewed the current understanding of the cellular and molecular cues regulating CD8 TRM and BRM development, maintenance and function. We focused particularly on elucidating the role of a novel tissue-resident helper T (TRH) cell population in assisting TRM and BRM responses in the respiratory mucosa following viral infection. Finally, we argue that the promotion of TRH responses by future mucosal vaccines would be key to the development of successful universal influenza or coronavirus vaccines, providing long-lasting immunity against a broad spectrum of viral strains.
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Affiliation(s)
- Young Min Son
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA;
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - Jie Sun
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA;
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
- Division of Infectious Disease and International Health, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA
- Correspondence: or
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Hernandez R, LaPorte KM, Hsiung S, Santos Savio A, Malek TR. High-dose IL-2/CD25 fusion protein amplifies vaccine-induced CD4 + and CD8 + neoantigen-specific T cells to promote antitumor immunity. J Immunother Cancer 2021; 9:jitc-2021-002865. [PMID: 34475132 PMCID: PMC8413969 DOI: 10.1136/jitc-2021-002865] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/01/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Immunization with tumor neoantigens is a promising vaccine approach to promote antitumor immunity due to their high immunogenicity, lack of expression in normal tissue, and preferential induction of tumor neoantigen-specific T cells, which are central mediators of the anti-cancer response. A drawback to targeting tumor neoantigen-specific T cells is that these cells are found at a low frequency in patients with cancer, limiting their therapeutic benefit. Interleukin-2 (IL-2) promotes expansion and persistence of tumor-reactive T cells. However, its clinical use has been hampered by toxicities arising from its multiple cellular targets. Thus, new engineered IL-2 receptor (IL-2R) agonists with distinctive cell type selectivity have been designed to harness the potential of IL-2 for tumor immunotherapy. METHODS We investigated the potential to amplify neoantigen-specific CD4+ and CD8+ T cell immune responses to promote antitumor immunity through vaccination with tumor neoantigens. Following T cell receptor (TCR)-mediated induction of the high-affinity IL-2R on these T cells, amplification of the neoantigen-specific T cell response was achieved using a high dose of the mouse IL-2/CD25 (mIL-2/CD25) fusion protein, an IL-2R agonist with more favorable pharmacokinetics and pharmacodynamics than IL-2 and selectivity toward the high-affinity IL-2R. RESULTS Administration of a high dose of mIL-2/CD25 shortly after antigen-dependent induction of the high-affinity IL-2R amplified the numbers and function of TCR transgenic tumor-reactive tyrosinase-related protein-1 (TRP-1) CD4+ T cells, leading to antitumor immunity to B16-F10 melanoma. This approach was adapted to amplify endogenous polyclonal B16-F10 neoantigen-specific T cells. Maximal expansion of these cells required prime/boost neoantigen vaccinations, where mIL-2/CD25 was optimal when administered only after the boosting steps. The ensuing mIL-2/CD25-driven immune response supported antitumor immunity to B16-F10 and was more effective than treatment with a similar amount of IL-2. Optimal antitumor effects required amplification of CD4+ and CD8+ neoantigen-specific T cells. High-dose mIL-2/CD25 supported a tumor microenvironment with higher numbers of CD4+ and CD8+ T effectors cells with increased granzyme B expression and importantly a more robust expansion of neoantigen-specific T cells. CONCLUSION These results indicate that neoantigen-based vaccines are optimized by potentiating IL-2R signaling in CD4+ and CD8+ neoantigen-reactive T cells by using high-dose mIL-2/CD25, leading to more effective tumor clearance.
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Affiliation(s)
- Rosmely Hernandez
- Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Kathryn M LaPorte
- Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Sunnie Hsiung
- Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Alicia Santos Savio
- Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Thomas R Malek
- Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, Florida, USA
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Cord blood levels of interleukin-10 decrease in neonates with increased birth weight: novel implications of the cytokine network in early obesity. Eur J Pediatr 2021; 180:2529-2537. [PMID: 33959818 DOI: 10.1007/s00431-021-04104-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 02/18/2021] [Accepted: 05/02/2021] [Indexed: 10/21/2022]
Abstract
Interleukin-10 (IL-10) and interferon-gamma (IFN-gamma) are associated with body weight alterations in children, adolescents, and adults. However, little is known regarding the role of IL-10 and IFN-gamma in birth weight of neonates. One hundred eighty-two infants were enrolled and divided in groups of normal birth weight (< 95th percentile) or increased birth weight (> 95th percentile) for gestational age. IL-10 and IFN-gamma levels were measured in umbilical cord tissue and blood of newborns by quantitative polymerase chain reaction (qPCR) and enzyme-linked immunosorbent assay (ELISA). The average value of birth weight in infants below and above the 95th percentile was 3.03±0.39 and 3.58±0.37 kg, respectively, and was independent of the mother's pre-gestational body mass index. The Student t test revealed that neonates with birth weights > 95th percentile show a significant 30% decrease in cord blood values of IL-10 as compared to infants with birth weights < 95th percentile (P<0.0001), with no significant changes in IFN-gamma levels (P=0.1661). Cord blood IL-10 was not of maternal origin but produced by umbilical cord tissue that showed less IL-10 expression in neonates with birth weights > 95th percentile than in infants with birth weights < 95th percentile (P=0.0252). Cord blood levels of IL-10 exhibited significant inverse correlations with birth weight (r = - 0.658, P=0.002) and INF-gamma (r = - 0.502, P=0.005).Conclusion: In conclusion, this work demonstrates for the first time that cord blood IL-10 decreases as birth weight increases in infants born at term and might help to improve early recognition of newborns at higher risk of developing obesity in childhood or adulthood. What is Known: • Reduction in interleukin-10 levels has been associated with obesity in adolescents and adults but not newborns. • The number of neonates with excess birth weight has alarmingly increased in the last 30 years. What is New: • We demonstrate that umbilical cord blood levels of interleukin-10 clearly decrease as birth weight increases. • Interleukin-10 and interferon-gamma integrate a cytokine network that might play a role in obesity in infants.
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Abstract
Elicitation of lung tissue-resident memory CD8 T cells (TRMs) is a goal of T cell-based vaccines against respiratory viral pathogens, such as influenza A virus (IAV). C-C chemokine receptor type 2 (CCR2)-dependent monocyte trafficking plays an essential role in the establishment of CD8 TRMs in lungs of IAV-infected mice. Here, we used a combination adjuvant-based subunit vaccine strategy that evokes multifaceted (TC1/TC17/TH1/TH17) IAV nucleoprotein-specific lung TRMs to determine whether CCR2 and monocyte infiltration are essential for vaccine-induced TRM development and protective immunity to IAV in lungs. Following intranasal vaccination, neutrophils, monocytes, conventional dendritic cells (DCs), and monocyte-derived dendritic cells internalized and processed vaccine antigen in lungs. We found that basic leucine zipper ATF-like transcription factor 3 (BATF3)-dependent DCs were essential for eliciting T cell responses, but CCR2 deficiency enhanced the differentiation of CD127hi, KLRG-1lo, OX40+ve CD62L+ve, and mucosally imprinted CD69+ve CD103+ve effector and memory CD8 T cells in lungs and airways of vaccinated mice. Mechanistically, increased development of lung TRMs induced by CCR2 deficiency was linked to dampened expression of T-bet but not altered TCF-1 levels or T cell receptor signaling in CD8 T cells. T1/T17 functional programming, parenchymal localization of CD8/CD4 effector and memory T cells, recall T cell responses, and protective immunity to a lethal IAV infection were unaffected in CCR2-deficient mice. Taken together, we identified a negative regulatory role for CCR2 and monocyte trafficking in mucosal imprinting and differentiation of vaccine-induced TRMs. Mechanistic insights from this study may aid the development of T-cell-based vaccines against respiratory viral pathogens, including IAV and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). IMPORTANCE While antibody-based immunity to influenza A virus (IAV) is type and subtype specific, lung- and airway-resident memory T cells that recognize conserved epitopes in the internal viral proteins are known to provide heterosubtypic immunity. Hence, broadly protective IAV vaccines need to elicit robust T cell memory in the respiratory tract. We have developed a combination adjuvant-based IAV nucleoprotein vaccine that elicits strong CD4 and CD8 T cell memory in lungs and protects against H1N1 and H5N1 strains of IAV. In this study, we examined the mechanisms that control vaccine-induced protective memory T cells in the respiratory tract. We found that trafficking of monocytes into lungs might limit the development of antiviral lung-resident memory T cells following intranasal vaccination. These findings suggest that strategies that limit monocyte infiltration can potentiate vaccine-induced frontline T-cell immunity to respiratory viruses, such as IAV and SARS-CoV-2.
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Inclan-Rico JM, Herbert DR. T Regulatory Cells Influence Decisions between Concomitant Immunity versus Sterile Cure. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 207:3-4. [PMID: 34935628 DOI: 10.4049/jimmunol.2100338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Juan M Inclan-Rico
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - De'Broski R Herbert
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
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Pritzl CJ, Daniels MA, Teixeiro E. Interplay of Inflammatory, Antigen and Tissue-Derived Signals in the Development of Resident CD8 Memory T Cells. Front Immunol 2021; 12:636240. [PMID: 34234771 PMCID: PMC8255970 DOI: 10.3389/fimmu.2021.636240] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 04/29/2021] [Indexed: 12/21/2022] Open
Abstract
CD8 positive, tissue resident memory T cells (TRM) are a specialized subset of CD8 memory T cells that surveil tissues and provide critical first-line protection against tumors and pathogen re-infection. Recently, much effort has been dedicated to understanding the function, phenotype and development of TRM. A myriad of signals is involved in the development and maintenance of resident memory T cells in tissue. Much of the initial research focused on the roles tissue-derived signals play in the development of TRM, including TGFß and IL-33 which are critical for the upregulation of CD69 and CD103. However, more recent data suggest further roles for antigenic and pro-inflammatory cytokines. This review will focus on the interplay of pro-inflammatory, tissue and antigenic signals in the establishment of resident memory T cells.
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Affiliation(s)
| | | | - Emma Teixeiro
- Department of Molecular Microbiology and Immunology, School of Medicine, University of Missouri, Columbia, MO, United States
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Lu Y, Craft J. T Follicular Regulatory Cells: Choreographers of Productive Germinal Center Responses. Front Immunol 2021; 12:679909. [PMID: 34177925 PMCID: PMC8222975 DOI: 10.3389/fimmu.2021.679909] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/27/2021] [Indexed: 12/22/2022] Open
Abstract
T follicular regulatory cells, or Tfr cells, are a discernable population of regulatory T (Treg) cells that migrate to the B cell follicle and germinal center (GC) upon immune challenge. These cells express the transcription factor Bcl6, the master regulator required for development and differentiation of T follicular helper cells, and are among a group of previously described Treg cells that use T helper cell–associated transcription factors to adapt their regulatory function to diverse milieus for maintenance of immune homeostasis. While there is consensus that Tfr cells control B-cell autoreactivity, it has been unclear whether they regulate productive, antigen-specific GC responses. Accordingly, understanding the regulatory balancing that Tfr cells play in maintenance of B-cell tolerance while optimizing productive humoral immunity is crucial for vaccine-design strategies. To this end, we discuss recent evidence that Tfr cells promote humoral immunity and memory following viral infections, fitting with the accepted role of Treg cells in maintaining homeostasis with promotion of productive immunity, while mitigating that which is potentially pathological. We also propose models in which Tfr cells regulate antigen-specific B cell responses.
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Affiliation(s)
- Yisi Lu
- Department of Immunobiology, Yale School of Medicine, New Haven, CT, United States
| | - Joe Craft
- Department of Immunobiology, Yale School of Medicine, New Haven, CT, United States.,Department of Internal Medicine, Yale School of Medicine, New Haven, CT, United States
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Fabersani E, Portune K, Campillo I, López-Almela I, la Paz SMD, Romaní-Pérez M, Benítez-Páez A, Sanz Y. Bacteroides uniformis CECT 7771 alleviates inflammation within the gut-adipose tissue axis involving TLR5 signaling in obese mice. Sci Rep 2021; 11:11788. [PMID: 34083551 PMCID: PMC8175583 DOI: 10.1038/s41598-021-90888-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 05/19/2021] [Indexed: 02/07/2023] Open
Abstract
This study investigated the immune mechanisms whereby administration of Bacteroides uniformis CECT 7771 reduces metabolic dysfunction in obesity. C57BL/6 adult male mice were fed a standard diet or a Western diet high in fat and fructose, supplemented or not with B. uniformis CECT 7771 for 14 weeks. B. uniformis CECT 7771 reduced body weight gain, plasma cholesterol, triglyceride, glucose, and leptin levels; and improved oral glucose tolerance in obese mice. Moreover, B. uniformis CECT 7771 modulated the gut microbiota and immune alterations associated with obesity, increasing Tregs and reducing B cells, total macrophages and the M1/M2 ratio in both the gut and epididymal adipose tissue (EAT) of obese mice. B. uniformis CECT 7771 also increased the concentration of the anti-inflammatory cytokine IL-10 in the gut, EAT and peripheral blood, and protective cytokines TSLP and IL-33, involved in Treg induction and type 2 innate lymphoid cells activation, in the EAT. It also restored the obesity-reduced TLR5 expression in the ileum and EAT. The findings indicate that the administration of a human intestinal bacterium with immunoregulatory properties on the intestinal mucosa helps reverse the immuno-metabolic dysfunction caused by a Western diet acting over the gut-adipose tissue axis.
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Affiliation(s)
- Emanuel Fabersani
- Microbial Ecology, Nutrition and Health Research Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), C/ Catedrático Agustín Escardino Benlloch 7, 46980, Paterna, Valencia, Spain
| | - Kevin Portune
- Microbial Ecology, Nutrition and Health Research Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), C/ Catedrático Agustín Escardino Benlloch 7, 46980, Paterna, Valencia, Spain
| | - Isabel Campillo
- Microbial Ecology, Nutrition and Health Research Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), C/ Catedrático Agustín Escardino Benlloch 7, 46980, Paterna, Valencia, Spain
| | - Inmaculada López-Almela
- Microbial Ecology, Nutrition and Health Research Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), C/ Catedrático Agustín Escardino Benlloch 7, 46980, Paterna, Valencia, Spain
| | - Sergio Montserrat-de la Paz
- Microbial Ecology, Nutrition and Health Research Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), C/ Catedrático Agustín Escardino Benlloch 7, 46980, Paterna, Valencia, Spain
| | - Marina Romaní-Pérez
- Microbial Ecology, Nutrition and Health Research Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), C/ Catedrático Agustín Escardino Benlloch 7, 46980, Paterna, Valencia, Spain
| | - Alfonso Benítez-Páez
- Microbial Ecology, Nutrition and Health Research Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), C/ Catedrático Agustín Escardino Benlloch 7, 46980, Paterna, Valencia, Spain
| | - Yolanda Sanz
- Microbial Ecology, Nutrition and Health Research Unit, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), C/ Catedrático Agustín Escardino Benlloch 7, 46980, Paterna, Valencia, Spain.
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PD-L1 signaling on human memory CD4+ T cells induces a regulatory phenotype. PLoS Biol 2021; 19:e3001199. [PMID: 33901179 PMCID: PMC8101994 DOI: 10.1371/journal.pbio.3001199] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 05/06/2021] [Accepted: 03/22/2021] [Indexed: 12/17/2022] Open
Abstract
Programmed cell death protein 1 (PD-1) is expressed on T cells upon T cell receptor (TCR) stimulation. PD-1 ligand 1 (PD-L1) is expressed in most tumor environments, and its binding to PD-1 on T cells drives them to apoptosis or into a regulatory phenotype. The fact that PD-L1 itself is also expressed on T cells upon activation has been largely neglected. Here, we demonstrate that PD-L1 ligation on human CD25-depleted CD4+ T cells, combined with CD3/TCR stimulation, induces their conversion into highly suppressive T cells. Furthermore, this effect was most prominent in memory (CD45RA−CD45RO+) T cells. PD-L1 engagement on T cells resulted in reduced ERK phosphorylation and decreased AKT/mTOR/S6 signaling. Importantly, T cells from rheumatoid arthritis patients exhibited high basal levels of phosphorylated ERK and following PD-L1 cross-linking both ERK signaling and the AKT/mTOR/S6 pathway failed to be down modulated, making them refractory to the acquisition of a regulatory phenotype. Altogether, our results suggest that PD-L1 signaling on memory T cells could play an important role in resolving inflammatory responses; maintaining a tolerogenic environment and its failure could contribute to ongoing autoimmunity. This study shows that programmed death cell receptor ligand 1 (PD-L1) signaling in memory CD4+ T cells from healthy individuals induces a regulatory phenotype; this mechanism seems to be defective in equivalent T cells from rheumatoid arthritis patients and could be in part responsible for the pathology.
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