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M. S. Barron A, Fabre T, De S. Distinct fibroblast functions associated with fibrotic and immune-mediated inflammatory diseases and their implications for therapeutic development. F1000Res 2024; 13:54. [PMID: 38681509 PMCID: PMC11053351 DOI: 10.12688/f1000research.143472.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/28/2023] [Indexed: 05/01/2024] Open
Abstract
Fibroblasts are ubiquitous cells that can adopt many functional states. As tissue-resident sentinels, they respond to acute damage signals and shape the earliest events in fibrotic and immune-mediated inflammatory diseases. Upon sensing an insult, fibroblasts produce chemokines and growth factors to organize and support the response. Depending on the size and composition of the resulting infiltrate, these activated fibroblasts may also begin to contract or relax thus changing local stiffness within the tissue. These early events likely contribute to the divergent clinical manifestations of fibrotic and immune-mediated inflammatory diseases. Further, distinct changes to the cellular composition and signaling dialogue in these diseases drive progressive fibroblasts specialization. In fibrotic diseases, fibroblasts support the survival, activation and differentiation of myeloid cells, granulocytes and innate lymphocytes, and produce most of the pathogenic extracellular matrix proteins. Whereas, in immune-mediated inflammatory diseases, sequential accumulation of dendritic cells, T cells and B cells programs fibroblasts to support local, destructive adaptive immune responses. Fibroblast specialization has clear implications for the development of effective induction and maintenance therapies for patients with these clinically distinct diseases.
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Affiliation(s)
- Alexander M. S. Barron
- Inflammation & Immunology Research Unit, Pfizer, Inc., Cambridge, Massachusetts, 02139, USA
| | - Thomas Fabre
- Inflammation & Immunology Research Unit, Pfizer, Inc., Cambridge, Massachusetts, 02139, USA
| | - Saurav De
- Inflammation & Immunology Research Unit, Pfizer, Inc., Cambridge, Massachusetts, 02139, USA
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Desbois M, Béal C, Charrier M, Besse B, Meurice G, Cagnard N, Jacques Y, Béchard D, Cassard L, Chaput N. IL-15 superagonist RLI has potent immunostimulatory properties on NK cells: implications for antimetastatic treatment. J Immunother Cancer 2021; 8:jitc-2020-000632. [PMID: 32532840 PMCID: PMC7295443 DOI: 10.1136/jitc-2020-000632] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2020] [Indexed: 12/14/2022] Open
Abstract
Background As the immune system is compromised in patients with cancer, therapeutic strategies to stimulate immunity appear promising, to avoid relapse and increase long-term overall survival. Interleukin-15 (IL-15) has similar properties to IL-2, but does not cause activation-induced cell death nor activation and proliferation of regulatory T cells (Treg), which makes it a serious candidate for anticancer immunotherapy. However, IL-15 has a short half-life and high doses are needed to achieve responses. Designed to enhance its activity, receptor-linker-IL-15 (RLI) (SO-C101) is a fusion molecule of human IL-15 covalently linked to the human IL-15Rα sushi+ domain currently assessed in a phase I/Ib clinical trial on patients with advanced/metastatic solid cancer. Methods We investigated the antimetastatic activity of RLI in a 4T1 mouse mammary carcinoma that spontaneously metastasizes and evaluated its immunomodulatory role in the metastatic lung microenvironment. We further characterized the proliferation, maturation and cytotoxic functions of natural killer (NK) cells in tumor-free mice treated with RLI. Finally, we explored the effect of RLI on human NK cells from healthy donors and patients with non-small cell lung cancer (NSCLC). Results RLI treatment displayed antimetastatic properties in the 4T1 mouse model. By characterizing the lung microenvironment, we observed that RLI restored the balance between NK cells and neutrophils (CD11b+ Ly6Ghigh Ly6Clow) that massively infiltrate lungs of 4T1-tumor bearing mice. In addition, the ratio between NK cells and Treg was strongly increased by RLI treatment. Further pharmacodynamic studies in tumor-free mice revealed superior proliferative and cytotoxic functions on NK cells after RLI treatment compared with IL-15 alone. Characterization of the maturation stage of NK cells demonstrated that RLI favored accumulation of CD11b+ CD27high KLRG1+ mature NK cells. Finally, RLI demonstrated potent immunostimulatory properties on human NK cells by inducing proliferation and activation of NK cells from healthy donors and enhancing cytotoxic responses to NKp30 crosslinking in NK cells from patients with NSCLC. Conclusions Collectively, our work demonstrates superior activity of RLI compared with rhIL-15 in modulating and activating NK cells and provides additional evidences for a therapeutic strategy using RLI as antimetastatic molecule.
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Affiliation(s)
- Mélanie Desbois
- Analyse Moléculaire, Modélisation et Imagerie de la Maladie Cancéreuse, Laboratoire d'Immunomonitoring en Oncologie, Gustave Roussy Institute, INSERM, CNRS, Paris-Saclay University, Villejuif, Île-de-France, France.,Cytune Pharma, Nantes, France.,Faculté de Médecine, Paris-Saclay University, Le Kremlin-Bicêtre, Île-de-France, France
| | - Coralie Béal
- Centre d'investigation Clinique Biothérapie 1428, Gustave Roussy Institute, Villejuif, Île-de-France, France
| | - Mélinda Charrier
- Analyse Moléculaire, Modélisation et Imagerie de la Maladie Cancéreuse, Laboratoire d'Immunomonitoring en Oncologie, Gustave Roussy Institute, INSERM, CNRS, Paris-Saclay University, Villejuif, Île-de-France, France.,Faculté de Médecine, Paris-Saclay University, Le Kremlin-Bicêtre, Île-de-France, France.,Centre d'investigation Clinique Biothérapie 1428, Gustave Roussy Institute, Villejuif, Île-de-France, France
| | - Benjamin Besse
- Faculté de Médecine, Paris-Saclay University, Le Kremlin-Bicêtre, Île-de-France, France.,Comité de Pathologie Thoracique, Gustave Roussy Institute, Villejuif, Île-de-France, France
| | - Guillaume Meurice
- Plateforme de Bioinformatique, Gustave Roussy Institute, Villejuif, Île-de-France, France
| | - Nicolas Cagnard
- Plateforme de Bioinformatique, Université Paris Descartes, Paris, Île-de-France, France
| | | | | | - Lydie Cassard
- Analyse Moléculaire, Modélisation et Imagerie de la Maladie Cancéreuse, Laboratoire d'Immunomonitoring en Oncologie, Gustave Roussy Institute, INSERM, CNRS, Paris-Saclay University, Villejuif, Île-de-France, France
| | - Nathalie Chaput
- Analyse Moléculaire, Modélisation et Imagerie de la Maladie Cancéreuse, Laboratoire d'Immunomonitoring en Oncologie, Gustave Roussy Institute, INSERM, CNRS, Paris-Saclay University, Villejuif, Île-de-France, France .,Faculty of Pharmacy, University Paris-Saclay, Chatenay-Malabry, France
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Gavegnano C, Brehm JH, Dupuy FP, Talla A, Ribeiro SP, Kulpa DA, Cameron C, Santos S, Hurwitz SJ, Marconi VC, Routy JP, Sabbagh L, Schinazi RF, Sékaly RP. Novel mechanisms to inhibit HIV reservoir seeding using Jak inhibitors. PLoS Pathog 2017; 13:e1006740. [PMID: 29267399 PMCID: PMC5739511 DOI: 10.1371/journal.ppat.1006740] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 11/09/2017] [Indexed: 11/18/2022] Open
Abstract
Despite advances in the treatment of HIV infection with ART, elucidating strategies to overcome HIV persistence, including blockade of viral reservoir establishment, maintenance, and expansion, remains a challenge. T cell homeostasis is a major driver of HIV persistence. Cytokines involved in regulating homeostasis of memory T cells, the major hub of the HIV reservoir, trigger the Jak-STAT pathway. We evaluated the ability of tofacitinib and ruxolitinib, two FDA-approved Jak inhibitors, to block seeding and maintenance of the HIV reservoir in vitro. We provide direct demonstration for involvement of the Jak-STAT pathway in HIV persistence in vivo, ex vivo, and in vitro; pSTAT5 strongly correlates with increased levels of integrated viral DNA in vivo, and in vitro Jak inhibitors reduce the frequency of CD4+ T cells harboring integrated HIV DNA. We show that Jak inhibitors block viral production from infected cells, inhibit γ-C receptor cytokine (IL-15)-induced viral reactivation from latent stores thereby preventing transmission of infectious particles to bystander activated T cells. These results show that dysregulation of the Jak-STAT pathway is associated with viral persistence in vivo, and that Jak inhibitors target key events downstream of γ-C cytokine (IL-2, IL-7 and IL-15) ligation to their receptors, impacting the magnitude of the HIV reservoir in all memory CD4 T cell subsets in vitro and ex vivo. Jak inhibitors represent a therapeutic modality to prevent key events of T cell activation that regulate HIV persistence and together, specific, potent blockade of these events may be integrated to future curative strategies.
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Affiliation(s)
- Christina Gavegnano
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, GA, United States of America
| | - Jessica H. Brehm
- Case Western Reserve University, Dept. of Pathology, Cleveland, OH, United States of America
| | | | - Aarthi Talla
- Case Western Reserve University, Dept. of Pathology, Cleveland, OH, United States of America
| | - Susan Pereira Ribeiro
- Case Western Reserve University, Dept. of Pathology, Cleveland, OH, United States of America
| | - Deanna A. Kulpa
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, GA, United States of America
| | - Cheryl Cameron
- Case Western Reserve University, Dept. of Pathology, Cleveland, OH, United States of America
| | | | - Selwyn J. Hurwitz
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, GA, United States of America
| | - Vincent C. Marconi
- Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA, United States of America
| | - Jean-Pierre Routy
- Chronic Viral Illnesses Service Research Institute, Division of Hematology, McGill University Health Centre, Montréal, QC, Canada
| | - Laurent Sabbagh
- Université de Montréal, Department of Microbiology, Infectiology, and Immunology, Montreal, QC, Canada
| | - Raymond F. Schinazi
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, Atlanta, GA, United States of America
- * E-mail: (RFS); (RPS)
| | - Rafick Pierre Sékaly
- Case Western Reserve University, Dept. of Pathology, Cleveland, OH, United States of America
- * E-mail: (RFS); (RPS)
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Li J, Valentin A, Ng S, Beach RK, Alicea C, Bergamaschi C, Felber BK, Pavlakis GN. Differential effects of IL-15 on the generation, maintenance and cytotoxic potential of adaptive cellular responses induced by DNA vaccination. Vaccine 2015; 33:1188-96. [PMID: 25559187 DOI: 10.1016/j.vaccine.2014.12.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 11/24/2014] [Accepted: 12/18/2014] [Indexed: 11/30/2022]
Abstract
IL-15 is an important cytokine for the regulation of lymphocyte homeostasis. However, the role of IL-15 in the generation, maintenance and cytotoxic potential of antigen specific T cells is not fully understood. Because the route of antigenic delivery and the vaccine modality could influence the IL-15 requirement for mounting and preserving cytotoxic T cell responses, we have investigated the immunogenicity of DNA-based vaccines in IL-15 KO mice. DNA vaccination with SIV Gag induced antigen-specific CD4(+) and CD8(+) T cells in the absence of IL-15. However, the absolute number of antigen-specific CD8(+) T cells was decreased in IL-15 KO mice compared to WT animals, suggesting that IL-15 is important for the generation of maximal number of antigen-specific CD8(+) T cells. Interestingly, antigen-specific memory CD8 cells could be efficiently boosted 8 months after the final vaccination in both WT and KO strains of mice, suggesting that the maintenance of antigen-specific long-term memory T cells induced by DNA vaccination is comparable in the absence and presence of IL-15. Importantly, boosting by DNA 8-months after vaccination revealed severely reduced granzyme B content in CD8(+) T cells of IL-15 KO mice compared to WT mice. This suggests that the cytotoxic potential of the long-term memory CD8(+) T cells is impaired. These results suggest that IL-15 is not essential for the generation and maintenance of adaptive cellular responses upon DNA vaccination, but it is critical for the preservation of maximal numbers and for the activity of cytotoxic CD8(+) T cells.
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Affiliation(s)
- Jinyao Li
- Human Retrovirus Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States
| | - Antonio Valentin
- Human Retrovirus Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States.
| | - Sinnie Ng
- Human Retrovirus Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States
| | - Rachel Kelly Beach
- Human Retrovirus Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States; Human Retrovirus Pathogenesis Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States
| | - Candido Alicea
- Human Retrovirus Pathogenesis Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States
| | - Cristina Bergamaschi
- Human Retrovirus Pathogenesis Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States
| | - Barbara K Felber
- Human Retrovirus Pathogenesis Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States
| | - George N Pavlakis
- Human Retrovirus Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States.
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Croce M, Orengo AM, Azzarone B, Ferrini S. Immunotherapeutic applications of IL-15. Immunotherapy 2013; 4:957-69. [PMID: 23046239 DOI: 10.2217/imt.12.92] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
IL-15 is a member of the IL-2 family of cytokines, which play a fundamental role in innate and adaptive immune responses. IL-15 has pleiotropic immune-enhancing activities, as it stimulates NK, T and NKT cell proliferation, survival and effector functions. In view of these properties, IL-15 is regarded as a good candidate for cancer immunotherapy. This possibility is reinforced by its low toxicity and efficacy in preclinical tumor models. The use of IL-15 to boost the immune response in HIV infection has also been proposed, although further studies are required to establish potential risks and benefits. Clinical trials of IL-15 have been initiated in cancer patients and in HIV vaccination and will elucidate the potential of IL-15-based immunotherapy. The purpose of this review is to provide an update on the potential applications of IL-15 in cancer immunotherapy and HIV infection.
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Affiliation(s)
- Michela Croce
- IRCCS-AOU San-Martino-IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
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Perera PY, Lichy JH, Waldmann TA, Perera LP. The role of interleukin-15 in inflammation and immune responses to infection: implications for its therapeutic use. Microbes Infect 2012; 14:247-61. [PMID: 22064066 PMCID: PMC3270128 DOI: 10.1016/j.micinf.2011.10.006] [Citation(s) in RCA: 133] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2011] [Accepted: 10/18/2011] [Indexed: 01/02/2023]
Abstract
Interleukin-15 (IL-15) is a pleiotropic cytokine with a broad range of biological functions in many diverse cell types. It plays a major role in the development of inflammatory and protective immune responses to microbial invaders and parasites by modulating immune cells of both the innate and adaptive immune systems. This review provides an overview of the mechanisms by which IL-15 modulates the host response to infectious agents and its utility as a cytokine adjuvant in vaccines against infectious pathogens.
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Affiliation(s)
- Pin-Yu Perera
- Veterans Affairs Medical Center, Washington D.C. 20422
| | - Jack H. Lichy
- Veterans Affairs Medical Center, Washington D.C. 20422
| | - Thomas A. Waldmann
- Metabolism Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Liyanage P. Perera
- Metabolism Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
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