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Sossou D, Ezinmegnon S, Agbota G, Gbedande K, Accrombessi M, Massougbodji A, d’Almeida M, Alao JM, Dossou-Dagba I, Pachot A, Vachot L, Brengel-Pesce K, Cottrell G, Yessoufou A, Briand V, Tissières P, Fievet N. Regulatory T cell homing and activation is a signature of neonatal sepsis. Front Immunol 2024; 15:1420554. [PMID: 39072327 PMCID: PMC11272980 DOI: 10.3389/fimmu.2024.1420554] [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: 04/20/2024] [Accepted: 06/13/2024] [Indexed: 07/30/2024] Open
Abstract
Regulatory T cells (Treg) play a prominent role in utero tolerating non-inherited maternal antigens and in regulating immune responses against pathogens at birth. This study investigates Treg immunity in newborns in West Africa, where sepsis remains a major public health problem. Treg phenotypes on neonates subgroups with early-onset sepsis (EOS), presumed sepsis, and healthy newborn with and without prenatal risk factors were evaluated. Treg phenotypes varied according to prenatal conditions, with increase in Treg frequency and Foxp3 expression in healthy newborns with prenatal risk factors compared to those with none risk. Compared to healthy newborns with prenatal risk factors, EOS neonates had a significantly reduced frequency of Treg and Foxp3 expression. In the Treg pool, higher frequency of activated Treg was observed in EOS neonates, suggesting an in-utero activation upstream of the sepsis onset. Their migration to the infection site may explain the reduced frequency of circulating Integrin α4β1+ Treg suggestive of homing to the endothelial tissue. EOS neonates show increases expression of CTLA-4, PD-1 and CD39 on Treg, which negatively regulate the activation of effector T cells (Teff) corroborating by the lower frequency of Teff in EOS neonates. The higher frequency of CD39+ Treg and the lower frequency of integrinα4β1+ Treg in EOS non-survivor suggests that Treg exhaustement and endothelial homing are associated with outcome severity. Neonates developing EOS are born with an altered Treg phenotypic profile. Treg expression of CTLA-4, PD-1, CD39, and integrinα4β1 cell markers can be considered as early warning or diagnostic markers of EOS.
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Affiliation(s)
- Darius Sossou
- Paris-City University, Mére et Enfants en Milieu Tropical: pathogénes, systéme de santé et transition épidémiologique (MERIT), Institute of Research for Development (IRD), Paris, France
- Faculty of Sciences and Technology (FAST), University of Abomey-Calavi, Institute of Applied Biomedical Sciences (ISBA), Laboratory of Cell Biology and Physiology, Cotonou, Benin
- Institut de Recherche Clinique du Bénin (IRCB), Calavi, Benin
| | - Sem Ezinmegnon
- Faculty of Sciences and Technology (FAST), University of Abomey-Calavi, Institute of Applied Biomedical Sciences (ISBA), Laboratory of Cell Biology and Physiology, Cotonou, Benin
- Fédérations Hospitalo-Universitaires (FHU) Sepsis, AP-HP/Université Paris Saclay/Inserm, Le Kremlin-Bicêtre, France
| | - Gino Agbota
- Paris-City University, Mére et Enfants en Milieu Tropical: pathogénes, systéme de santé et transition épidémiologique (MERIT), Institute of Research for Development (IRD), Paris, France
- Institut de Recherche Clinique du Bénin (IRCB), Calavi, Benin
| | - Komi Gbedande
- Paris-City University, Mére et Enfants en Milieu Tropical: pathogénes, systéme de santé et transition épidémiologique (MERIT), Institute of Research for Development (IRD), Paris, France
- Institut de Recherche Clinique du Bénin (IRCB), Calavi, Benin
| | - Manfred Accrombessi
- Paris-City University, Mére et Enfants en Milieu Tropical: pathogénes, systéme de santé et transition épidémiologique (MERIT), Institute of Research for Development (IRD), Paris, France
- Institut de Recherche Clinique du Bénin (IRCB), Calavi, Benin
| | | | - Marceline d’Almeida
- Pediatric Department, National University Hospital Center (CNHU), Cotonou, Benin
| | - Jules M. Alao
- Pediatric Department, Mother and Child University and Hospital Center (CHUMEL), Cotonou, Benin
| | | | - Alexandre Pachot
- Medical Diagnostic Discovery Department, bioMérieux, Marcy l’Etoile, France
| | - Laurence Vachot
- Medical Diagnostic Discovery Department, bioMérieux, Marcy l’Etoile, France
| | | | - Gilles Cottrell
- Paris-City University, Mére et Enfants en Milieu Tropical: pathogénes, systéme de santé et transition épidémiologique (MERIT), Institute of Research for Development (IRD), Paris, France
| | - Akadiri Yessoufou
- Faculty of Sciences and Technology (FAST), University of Abomey-Calavi, Institute of Applied Biomedical Sciences (ISBA), Laboratory of Cell Biology and Physiology, Cotonou, Benin
| | - Valérie Briand
- Paris-City University, Mére et Enfants en Milieu Tropical: pathogénes, systéme de santé et transition épidémiologique (MERIT), Institute of Research for Development (IRD), Paris, France
| | - Pierre Tissières
- Fédérations Hospitalo-Universitaires (FHU) Sepsis, AP-HP/Université Paris Saclay/Inserm, Le Kremlin-Bicêtre, France
- Institute of Integrative Biology of the Cell (I2BC), Centre National de la Recherche Scientifique (CNRS), Commissariat à l'Energie Atomique et aux énergies alternatives (CEA), University Paris Saclay, Gif-sur-Yvette, France
- Pediatric Intensive Care and Neonatal Medicine, Assistance Publique - Hôpitaux de Paris (AP-HP) Paris Saclay University, Bicêtre Hospital, Le Kremlin-Bicêtre, France
| | - Nadine Fievet
- Paris-City University, Mére et Enfants en Milieu Tropical: pathogénes, systéme de santé et transition épidémiologique (MERIT), Institute of Research for Development (IRD), Paris, France
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2
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Hamidi SH, Etebar N, Rahimzadegan M, Zali A, Roodsari SR, Niknazar S. Mesenchymal stem cells and their derived exosomes in multiple sclerosis disease: from paper to practice. Mol Cell Biochem 2024; 479:1643-1671. [PMID: 38977625 DOI: 10.1007/s11010-024-05051-8] [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: 03/28/2024] [Accepted: 06/10/2024] [Indexed: 07/10/2024]
Abstract
Multiple sclerosis (MS) is a chronic neurodegenerative, inflammatory, and demyelinating disease of the central nervous system (CNS). Current medicines are not sufficient to control the inflammation and progressive damage to the CNS that is known in MS. These drawbacks highlight the need for novel treatment options. Cell therapy can now be used to treat complex diseases when conventional therapies are ineffective. Mesenchymal stem cells (MSCs) are a diverse group of multipotential non-hematopoietic stromal cells which have immunomodulatory, neurogenesis, and remyelinating capacity. Their advantageous effects mainly rely on paracrine, cell-cell communication and differentiation properties which introduced them as excellent candidates for MS therapy. Exosomes, as one of the MSCs secretomes, have unique properties that make them highly promising candidates for innovative approach in regenerative medicine. This review discusses the therapeutic potential of MSCs and their derived exosomes as a novel treatment for MS, highlighting the differences between these two approaches.
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Affiliation(s)
- Seyed Hootan Hamidi
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Acharya BM Reddy College of Pharmacy, Rajiv Gandhi University of Health Sciences Bachelor of Pharmacy, Bangalore, India
| | - Negar Etebar
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Faculty of Pharmacy, Eastern Mediterranean University, Famagusta, Cyprus
| | - Milad Rahimzadegan
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Zali
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sara Rahmati Roodsari
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Somayeh Niknazar
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Magni S, Sawlekar R, Capelle CM, Tslaf V, Baron A, Zeng N, Mombaerts L, Yue Z, Yuan Y, Hefeng FQ, Gonçalves J. Inferring upstream regulatory genes of FOXP3 in human regulatory T cells from time-series transcriptomic data. NPJ Syst Biol Appl 2024; 10:59. [PMID: 38811598 PMCID: PMC11137136 DOI: 10.1038/s41540-024-00387-9] [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: 02/08/2024] [Accepted: 05/10/2024] [Indexed: 05/31/2024] Open
Abstract
The discovery of upstream regulatory genes of a gene of interest still remains challenging. Here we applied a scalable computational method to unbiasedly predict candidate regulatory genes of critical transcription factors by searching the whole genome. We illustrated our approach with a case study on the master regulator FOXP3 of human primary regulatory T cells (Tregs). While target genes of FOXP3 have been identified, its upstream regulatory machinery still remains elusive. Our methodology selected five top-ranked candidates that were tested via proof-of-concept experiments. Following knockdown, three out of five candidates showed significant effects on the mRNA expression of FOXP3 across multiple donors. This provides insights into the regulatory mechanisms modulating FOXP3 transcriptional expression in Tregs. Overall, at the genome level this represents a high level of accuracy in predicting upstream regulatory genes of key genes of interest.
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Affiliation(s)
- Stefano Magni
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Belvaux, Luxembourg
| | - Rucha Sawlekar
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Belvaux, Luxembourg
- Robotics and Artificial Intelligence, Department of Computer Science, Electrical and Space Engineering, Luleå University of Technology, Luleå, Sweden
| | - Christophe M Capelle
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-Sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Vera Tslaf
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-Sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
- Transversal Translational Medicine, Luxembourg Institute of Health, Strassen, Luxembourg
| | - Alexandre Baron
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-Sur-Alzette, Luxembourg
| | - Ni Zeng
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-Sur-Alzette, Luxembourg
| | - Laurent Mombaerts
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Belvaux, Luxembourg
| | - Zuogong Yue
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Belvaux, Luxembourg
| | - Ye Yuan
- School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan, China
| | - Feng Q Hefeng
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-Sur-Alzette, Luxembourg.
| | - Jorge Gonçalves
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Belvaux, Luxembourg.
- Department of Plant Sciences, University of Cambridge, Cambridge, United Kingdom.
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McCullough MJ, Bose PG, Mock JR. Regulatory T cells: Supporting lung homeostasis and promoting resolution and repair after lung injury. Int J Biochem Cell Biol 2024; 170:106568. [PMID: 38518980 PMCID: PMC11031275 DOI: 10.1016/j.biocel.2024.106568] [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: 01/30/2024] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
Regulatory T cells, characterized by their expression of the transcription factor Forkhead box P3, are indispensable in maintaining immune homeostasis. The respiratory system is constantly exposed to many environmental challenges, making it susceptible to various insults and infections. Regulatory T cells play essential roles in maintaining homeostasis in the lung and promoting repair after injury. Regulatory T cell function dysregulation can lead to inflammation, tissue damage, or aberrant repair. Research on regulatory T cell mechanisms in the lung has unveiled their influence on lung inflammation and repair mechanisms. In this review, our goal is to highlight the advances in regulatory T cell biology with respect to lung injury and resolution. We further provide a perspective that a deeper understanding of regulatory T cell interactions in the lung microenvironment in health and disease states offers opportunities for therapeutic interventions as treatments to promote lung health.
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Affiliation(s)
- Morgan J McCullough
- Department of Microbiology and Immunology, School of Medicine, University of North Carolina Chapel Hill, NC, USA; Marsico Lung Institute, School of Medicine, University of North Carolina Chapel Hill, NC, USA
| | - Pria G Bose
- Marsico Lung Institute, School of Medicine, University of North Carolina Chapel Hill, NC, USA; Department of Pathology and Laboratory Medicine, School of Medicine, University of North Carolina Chapel Hill, NC, USA
| | - Jason R Mock
- Department of Microbiology and Immunology, School of Medicine, University of North Carolina Chapel Hill, NC, USA; Marsico Lung Institute, School of Medicine, University of North Carolina Chapel Hill, NC, USA; Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine School of Medicine, University of North Carolina Chapel Hill, NC, USA.
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Cai H, Liu Y, Dong X, Jiang F, Li H, Ouyang S, Yin W, He T, Zeng Q, Yang H. Analysis of LAP + and GARP + Treg subsets in peripheral blood of patients with neuromyelitis optica spectrum disorders. Neurol Sci 2023; 44:1739-1747. [PMID: 36683084 DOI: 10.1007/s10072-023-06629-8] [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: 08/03/2022] [Accepted: 01/16/2023] [Indexed: 01/24/2023]
Abstract
INTRODUCTION Neuromyelitis optica spectrum disorder (NMOSD) is a group of antibody-mediated inflammatory demyelinating central nervous system diseases. T lymphocytes participate in NMOSD pathogenesis, with regulatory T cells (Treg) being the core in maintaining immune homeostasis. Studies have revealed that different Treg subsets play different roles in autoimmune diseases. The distribution of LAP+ or GARP+ Treg subsets in NMOSD may help us deeply understand their immune mechanism. METHODS This study reviewed 22 NMOSD patients and 20 normal controls. Flow cytometric analysis was utilized to detect subsets of Treg cells expressing Foxp3, Helios, LAP, or GARP in peripheral blood. ELISA was used to detect plasma TGF-β1 and IL-10. In addition, changes in the proportion of Treg cell subsets before and after glucocorticoid treatment in 10 patients were analyzed. RESULTS Compared with healthy controls, LAP and GARP expressions were significantly downregulated in the peripheral blood of NMOSD patients. TGF-β1 expression in NMOSD patients was lower and was positively correlated with the ratio of CD4+GARP+ Treg cells. After treatment with glucocorticoid, LAP and GARP expressions in the peripheral blood of NMOSD patients were upregulated. CONCLUSIONS The proportion of Treg cells expressing LAP and GARP is downregulated, implying that Treg cells with the best inhibitory function are insufficient to maintain autoimmune homeostasis in NMOSD patients. Upregulation of Treg cells expressing LAP and GARP in NMOSD patients may be one of the mechanisms of glucocorticoid treatment.
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Affiliation(s)
- Haobing Cai
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Yu Liu
- Brain Hospital of Hunan Province (The Second People's Hospital of Hunan Province), Changsha, China
| | - Xiaohua Dong
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Fei Jiang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Hongliang Li
- Acupuncture and Tuina Rehabilitation Department, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Song Ouyang
- Medical Center of Neurology, The First Hospital of Changsha City, South China University, Changsha, China
| | - Weifan Yin
- The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ting He
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Qiuming Zeng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.
| | - Huan Yang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.
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Kremer J, Henschel P, Simon D, Riet T, Falk C, Hardtke-Wolenski M, Wedemeyer H, Noyan F, Jaeckel E. Membrane-bound IL-2 improves the expansion, survival, and phenotype of CAR Tregs and confers resistance to calcineurin inhibitors. Front Immunol 2022; 13:1005582. [PMID: 36618378 PMCID: PMC9816406 DOI: 10.3389/fimmu.2022.1005582] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/30/2022] [Indexed: 12/24/2022] Open
Abstract
Background Regulatory T cells (Tregs) play an important role in the maintenance of immune homeostasis and the establishment of immune tolerance. Since Tregs do not secrete endogenous IL-2, they are especially dependent on external IL-2. IL-2 deficiency leads to lower Treg numbers, instability of the Treg phenotype and loss of immune regulation. After organ transplantation, patients are treated with calcineurin inhibitors (CNIs), which further limits available IL-2. Application of low-dose IL-2 expands Tregs but also activates NK and CD8+ T cells. It was recently shown that graft-specific Tregs recognizing mismatched MHC I molecules via a chimeric antigen receptor were far more potent than polyclonal Tregs in the regulation of immune responses after solid organ transplantation in a humanized mouse model. Methods Therefore, our aim was to enhance the function and stability of transferred CAR-Tregs via expression of membrane-associated IL-2 (mbIL-2). Results mbIL-2 promoted higher survival, phenotypic stability, and function among CAR-Tregs than observed in clinical trials. The cells were also more stable under inflammatory conditions. In a preclinical humanized mouse model, we demonstrated that mbIL-2 CAR Tregs survive better in the Treg niche than control CAR Tregs and are even resistant to CNI therapy without affecting other Tregs, thus acting mainly in cis. Discussion The functional and phenotypic improvements observed after membrane-attached IL-2 expression in CAR-Tregs will be important step for enhancing CAR-Treg therapies currently being tested in clinical trials for use after kidney and liver transplantation as well as in autoimmune diseases.
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Affiliation(s)
- Jakob Kremer
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
| | - Pierre Henschel
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
| | - Daniel Simon
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
| | - Tobias Riet
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
- Department I of Internal Medicine, Tumor Genetics, University Hospital of Cologne and Center for Molecular Medicine, Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Christine Falk
- Institute of Transplant Immunology, Hannover Medical School, Hannover, Germany
| | - Matthias Hardtke-Wolenski
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
- Institute of Medical Microbiology, Essen University Hospital, University Duisburg-Essen, Essen, Germany
| | - Heiner Wedemeyer
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
| | - Fatih Noyan
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
| | - Elmar Jaeckel
- Department of Gastroenterology, Hepatology & Endocrinology, Hannover Medical School, Hannover, Germany
- Department of liver transplantation, Multi Organ Transplant Program, University Health Network, University of Toronto, Toronto, ON, Canada
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Zhao Y, Bai Y, Shen M, Li Y. Therapeutic strategies for gastric cancer targeting immune cells: Future directions. Front Immunol 2022; 13:992762. [PMID: 36225938 PMCID: PMC9549957 DOI: 10.3389/fimmu.2022.992762] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Gastric cancer (GC) is a malignancy with a high incidence and mortality, and the emergence of immunotherapy has brought survival benefits to GC patients. Compared with traditional therapy, immunotherapy has the advantages of durable response, long-term survival benefits, and lower toxicity. Therefore, targeted immune cells are the most promising therapeutic strategy in the field of oncology. In this review, we introduce the role and significance of each immune cell in the tumor microenvironment of GC and summarize the current landscape of immunotherapy in GC, which includes immune checkpoint inhibitors, adoptive cell therapy (ACT), dendritic cell (DC) vaccines, reduction of M2 tumor-associated macrophages (M2 TAMs), N2 tumor-associated neutrophils (N2 TANs), myeloid-derived suppressor cells (MDSCs), effector regulatory T cells (eTregs), and regulatory B cells (Bregs) in the tumor microenvironment and reprogram TAMs and TANs into tumor killer cells. The most widely used immunotherapy strategies are the immune checkpoint inhibitor programmed cell death 1/programmed death-ligand 1 (PD-1/PD-L1) antibody, cytotoxic T lymphocyte–associated protein 4 (CTLA-4) antibody, and chimeric antigen receptor T (CAR-T) in ACT, and these therapeutic strategies have significant anti-tumor efficacy in solid tumors and hematological tumors. Targeting other immune cells provides a new direction for the immunotherapy of GC despite the relatively weak clinical data, which have been confirmed to restore or enhance anti-tumor immune function in preclinical studies and some treatment strategies have entered the clinical trial stage, and it is expected that more and more effective immune cell–based therapeutic methods will be developed and applied.
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Affiliation(s)
- Yan Zhao
- Department of Oncology and Hematology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yuansong Bai
- Department of Oncology and Hematology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Meili Shen
- Department of Radiation Oncology, China-Japan Union Hospital of Jilin University, Changchun, China
- *Correspondence: Yapeng Li, ; Meili Shen,
| | - Yapeng Li
- The National and Local Joint Engineering Laboratory for Synthesis Technology of High Performance Polymer, College of Chemistry, Jilin University, Changchun, China
- *Correspondence: Yapeng Li, ; Meili Shen,
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Ajouaou Y, Azouz A, Taquin A, Denanglaire S, Hussein H, Krayem M, Andris F, Moser M, Goriely S, Leo O. The oxygen sensor Prolyl hydroxylase domain 2 regulates the in vivo suppressive capacity of regulatory T cells. eLife 2022; 11:70555. [PMID: 35192456 PMCID: PMC8896828 DOI: 10.7554/elife.70555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 02/18/2022] [Indexed: 11/26/2022] Open
Abstract
The oxygen sensor prolyl hydroxylase domain 2 (PHD2) plays an important role in cell hypoxia adaptation by regulating the stability of HIF proteins (HIF1α and HIF2α) in numerous cell types, including T lymphocytes. The role of oxygen sensor on immune cells, particularly on regulatory T cell (Treg) function, has not been fully elucidated. The purpose of our study was to evaluate the role of PHD2 in the regulation of Treg phenotype and function. We demonstrate herein that selective ablation of PHD2 expression in Treg (PHD2ΔTreg mice) leads to a spontaneous systemic inflammatory syndrome, as evidenced by weight loss, development of a rectal prolapse, splenomegaly, shortening of the colon, and elevated expression of IFN-γ in the mesenteric lymph nodes, intestine, and spleen. PHD2 deficiency in Tregs led to an increased number of activated CD4 conventional T cells expressing a Th1-like effector phenotype. Concomitantly, the expression of innate-type cytokines such as Il1b, Il12a, Il12b, and Tnfa was found to be elevated in peripheral (gut) tissues and spleen. PHD2ΔTreg mice also displayed an enhanced sensitivity to dextran sodium sulfate-induced colitis and toxoplasmosis, suggesting that PHD2-deficient Tregs did not efficiently control inflammatory response in vivo, particularly those characterized by IFN-γ production. Further analysis revealed that Treg dysregulation was largely prevented in PHD2-HIF2α (PHD2-HIF2αΔTreg mice), but not in PHD2-HIF1α (PHD2-HIF1αΔTreg mice) double KOs, suggesting an important and possibly selective role of the PHD2-HIF2α axis in the control of Treg function. Finally, the transcriptomic analysis of PHD2-deficient Tregs identified the STAT1 pathway as a target of the PHD2-HIF2α axis in regulatory T cell phenotype and in vivo function.
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Affiliation(s)
| | | | | | | | - Hind Hussein
- Université Libre de Bruxelles, Gosselies, Belgium
| | - Mohammad Krayem
- Department of Radiation Oncology, Université Libre de Bruxelles, Brussels, Belgium
| | | | - Muriel Moser
- Université Libre de Bruxelles, Gosselies, Belgium
| | | | - Oberdan Leo
- Université Libre de Bruxelles, Gosselies, Belgium
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Ben-Skowronek I, Sieniawska J, Pach E, Wrobel W, Skowronek A, Tomczyk Z, Rosolowska I. Potential Therapeutic Application of Regulatory T Cells in Diabetes Mellitus Type 1. Int J Mol Sci 2021; 23:ijms23010390. [PMID: 35008819 PMCID: PMC8745590 DOI: 10.3390/ijms23010390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/18/2021] [Accepted: 12/28/2021] [Indexed: 01/02/2023] Open
Abstract
The autoimmune reaction against the beta cells of the pancreatic islets in type 1 diabetes mellitus (T1DM) patients is active in prediabetes and during the development of the clinical manifestation of T1DM, but it decreases within a few years of the clinical manifestation of this disease. A key role in the pathogenesis of T1DM is played by regulatory T cell (Treg) deficiency or dysfunction. Immune interventions, such as potential therapeutic applications or the induction of the Treg-cell population in T1DM, will be important in the development of new types of treatment. The aim of this study was to evaluate innovative immune interventions as treatments for T1DM. After an evaluation of full-length papers from the PubMed database from 2010 to 2021, 20 trials were included for the final analysis. The analysis led to the following conclusions: Treg cells play an important role in the limitation of the development of T1DM, the activation or application of Tregs may be more effective in the early stages of T1DM development, and the therapeutic use of Treg cells in T1DM is promising but requires long-term observation in a large group of patients.
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Granito A, Muratori L, Lalanne C, Quarneti C, Ferri S, Guidi M, Lenzi M, Muratori P. Hepatocellular carcinoma in viral and autoimmune liver diseases: Role of CD4+ CD25+ Foxp3+ regulatory T cells in the immune microenvironment. World J Gastroenterol 2021; 27:2994-3009. [PMID: 34168403 PMCID: PMC8192285 DOI: 10.3748/wjg.v27.i22.2994] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/09/2021] [Accepted: 05/07/2021] [Indexed: 02/06/2023] Open
Abstract
More than 90% of cases of hepatocellular carcinoma (HCC) occurs in patients with cirrhosis, of which hepatitis B virus and hepatitis C virus are the leading causes, while the tumor less frequently arises in autoimmune liver diseases. Advances in understanding tumor immunity have led to a major shift in the treatment of HCC, with the emergence of immunotherapy where therapeutic agents are used to target immune cells rather than cancer cells. Regulatory T cells (Tregs) are the most abundant suppressive cells in the tumor microenvironment and their presence has been correlated with tumor progression, invasiveness, as well as metastasis. Tregs are characterized by the expression of the transcription factor Foxp3 and various mechanisms ranging from cell-to-cell contact to secretion of inhibitory molecules have been implicated in their function. Notably, Tregs amply express checkpoint molecules such as cytotoxic T lymphocyte-associated antigen 4 and programmed cell-death 1 receptor and therefore represent a direct target of immune checkpoint inhibitor (ICI) immunotherapy. Taking into consideration the critical role of Tregs in maintenance of immune homeostasis as well as avoidance of autoimmunity, it is plausible that targeting of Tregs by ICI immunotherapy results in the development of immune-related adverse events (irAEs). Since the use of ICI becomes common in oncology, with an increasing number of new ICI currently under clinical trials for cancer treatment, the occurrence of irAEs is expected to dramatically rise. Herein, we review the current literature focusing on the role of Tregs in HCC evolution taking into account their opposite etiological function in viral and autoimmune chronic liver disease, and we discuss their involvement in irAEs due to the new immunotherapies.
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Affiliation(s)
- Alessandro Granito
- Division of Internal Medicine, Hepatobiliary and Immunoallergic Diseases, IRCCS Azienda Ospedaliero-Universitaria di Bologna, University of Bologna, Bologna 40138, Italy
- Center for the Study and Treatment of Autoimmune Diseases of the Liver and Biliary System, Department of Medical and Surgical Sciences, University of Bologna, Bologna 40138, Italy
| | - Luigi Muratori
- Division of Internal Medicine and Immunorheumatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Center for the Study and Treatment of Autoimmune Diseases of the Liver and Biliary System, University of Bologna, Bologna 40138, Italy
- Department of Medical and Surgical Sciences, University of Bologna, Bologna 40138, Italy
| | - Claudine Lalanne
- Division of Internal Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Center for the Study and Treatment of Autoimmune Diseases of the Liver and Biliary System, Bologna 40138, Italy
| | - Chiara Quarneti
- Division of Internal Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Center for the Study and Treatment of Autoimmune Diseases of the Liver and Biliary System, Bologna 40138, Italy
| | - Silvia Ferri
- Division of Internal Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Center for the Study and Treatment of Autoimmune Diseases of the Liver and Biliary System, Bologna 40138, Italy
| | - Marcello Guidi
- Division of Internal Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Center for the Study and Treatment of Autoimmune Diseases of the Liver and Biliary System, Bologna 40138, Italy
| | - Marco Lenzi
- Division of Internal Medicine and Immunorheumatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Center for the Study and Treatment of Autoimmune Diseases of the Liver and Biliary System, University of Bologna, Bologna 40138, Italy
- Department of Medical and Surgical Sciences, University of Bologna, Bologna 40138, Italy
| | - Paolo Muratori
- Division of Internal Medicine, Morgagni-Pierantoni Hospital, Forlì 47100, Italy
- Department of Science for the Quality of Life, University of Bologna, Bologna 40138, Italy
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11
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Kim HI, Hong SH, Lee SY, Ku JM, Kim MJ, Ko SG. Gardenia Jasminoides Ameliorates Antibiotic-Associated Aggravation of DNCB-Induced Atopic Dermatitis by Restoring the Intestinal Microbiome Profile. Nutrients 2021; 13:nu13041349. [PMID: 33919521 PMCID: PMC8072552 DOI: 10.3390/nu13041349] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 12/31/2022] Open
Abstract
The intestinal microbiome is considered one of the key regulators of health. Accordingly, the severity of atopic dermatitis (AD) is mediated by the skin and intestinal microbiome environment. In this study, while evaluating the aggravation in AD symptoms by the antibiotics cocktail (ABX)-induced depletion of the intestinal microbiome, we sought to verify the effect of Gardenia jasminoides (GJ), a medicinal herb used for inflammatory diseases, on AD regarding its role on the intestinal microbiome. To verify the aggravation in AD symptoms induced by the depletion of the intestinal microbiome, we established a novel mouse model by administrating an ABX to create a microbiome-free environment in the intestine, and then applied 2,4-dinitrochlorobenzene (DNCB) to induce an AD-like skin inflammatory response. While ABX treatment aggravated AD-like symptoms, the 2-week administration of GJ improved these pathological changes. DNCB application upregulated immune cell count and serum cytokine expression, which were alleviated by GJ. Moreover, pathological alterations by antibiotics and DNCB, including histological damage of the intestine and the intestinal expression of IL-17, were recovered in GJ-treated mice. The beneficial effect of GJ was due to the restoration of the intestinal microbiome composition. Overall, we suggest GJ as a potential therapeutic agent for AD due to its regulation of the intestinal microbiome.
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Affiliation(s)
- Hyo In Kim
- Department of Surgery, Beth Israel Deaconess Medical Center/Harvard Medical School, 330 Brookline Ave, Boston, MA 02215, USA;
| | - Se Hyang Hong
- Clinical Medicine Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 34054, Korea;
| | - Seo Yeon Lee
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea; (S.Y.L.); (M.J.K.)
| | - Jin Mo Ku
- Department of Preventive Medicine, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea;
| | - Min Jeong Kim
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea; (S.Y.L.); (M.J.K.)
| | - Seong-Gyu Ko
- Department of Preventive Medicine, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea;
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
- Correspondence: ; Tel.: +82-2-961-0329; Fax: +82-2-966-1165
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12
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Calvo-Barreiro L, Eixarch H, Cornejo T, Costa C, Castillo M, Mestre L, Guaza C, Martínez-Cuesta MDC, Tanoue T, Honda K, González-López JJ, Montalban X, Espejo C. Selected Clostridia Strains from The Human Microbiota and their Metabolite, Butyrate, Improve Experimental Autoimmune Encephalomyelitis. Neurotherapeutics 2021; 18:920-937. [PMID: 33829410 PMCID: PMC8423884 DOI: 10.1007/s13311-021-01016-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2021] [Indexed: 11/24/2022] Open
Abstract
Gut microbiome studies in multiple sclerosis (MS) patients are unravelling some consistent but modest patterns of gut dysbiosis. Among these, a significant decrease of Clostridia cluster IV and XIVa has been reported. In the present study, we investigated the therapeutic effect of a previously selected mixture of human gut-derived 17 Clostridia strains, which belong to Clostridia clusters IV, XIVa, and XVIII, on the clinical outcome of experimental autoimmune encephalomyelitis (EAE). The observed clinical improvement was related to lower demyelination and astrocyte reactivity as well as a tendency to lower microglia reactivity/infiltrating macrophages and axonal damage in the central nervous system (CNS), and to an enhanced immunoregulatory response of regulatory T cells in the periphery. Transcriptome studies also highlighted increased antiinflammatory responses related to interferon beta in the periphery and lower immune responses in the CNS. Since Clostridia-treated mice were found to present higher levels of the immunomodulatory short-chain fatty acid (SCFA) butyrate in the serum, we studied if this clinical effect could be reproduced by butyrate administration alone. Further EAE experiments proved its preventive but slight therapeutic impact on CNS autoimmunity. Thus, this smaller therapeutic effect highlighted that the Clostridia-induced clinical effect was not exclusively related to the SCFA and could not be reproduced by butyrate administration alone. Although it is still unknown if these Clostridia strains will have the same effect on MS patients, gut dysbiosis in MS patients could be partially rebalanced by these commensal bacteria and their immunoregulatory properties could have a beneficial effect on MS clinical course.
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MESH Headings
- Animals
- Butyrates/administration & dosage
- Clostridiaceae/immunology
- Dysbiosis/immunology
- Dysbiosis/pathology
- Dysbiosis/therapy
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Encephalomyelitis, Autoimmune, Experimental/therapy
- Fatty Acids, Volatile/administration & dosage
- Female
- Gastrointestinal Microbiome/physiology
- Humans
- Mice
- Mice, Inbred C57BL
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
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Affiliation(s)
- Laura Calvo-Barreiro
- Servei de Neurologia-Neuroimmunologia, Vall d'Hebron Institut de Recerca, Hospital Universitari Vall d'Hebron, Centre d'Esclerosi Múltiple de Catalunya, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
- Universitat Autònoma de Barcelona, 08193, Bellaterra Cerdanyola del Vallès, Spain
- Red Española de Esclerosis Múltiple (REEM), Instituto de Salud Carlos III, Ministerio de Economía y Competitividad, Fondo de Investigación Sanitaria, Madrid, Spain
| | - Herena Eixarch
- Servei de Neurologia-Neuroimmunologia, Vall d'Hebron Institut de Recerca, Hospital Universitari Vall d'Hebron, Centre d'Esclerosi Múltiple de Catalunya, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
- Universitat Autònoma de Barcelona, 08193, Bellaterra Cerdanyola del Vallès, Spain
- Red Española de Esclerosis Múltiple (REEM), Instituto de Salud Carlos III, Ministerio de Economía y Competitividad, Fondo de Investigación Sanitaria, Madrid, Spain
| | - Thais Cornejo
- Universitat Autònoma de Barcelona, 08193, Bellaterra Cerdanyola del Vallès, Spain
- Servei de Microbiologia, Hospital Universitari Vall d'Hebron, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
| | - Carme Costa
- Servei de Neurologia-Neuroimmunologia, Vall d'Hebron Institut de Recerca, Hospital Universitari Vall d'Hebron, Centre d'Esclerosi Múltiple de Catalunya, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
- Universitat Autònoma de Barcelona, 08193, Bellaterra Cerdanyola del Vallès, Spain
- Red Española de Esclerosis Múltiple (REEM), Instituto de Salud Carlos III, Ministerio de Economía y Competitividad, Fondo de Investigación Sanitaria, Madrid, Spain
| | - Mireia Castillo
- Servei de Neurologia-Neuroimmunologia, Vall d'Hebron Institut de Recerca, Hospital Universitari Vall d'Hebron, Centre d'Esclerosi Múltiple de Catalunya, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
- Universitat Autònoma de Barcelona, 08193, Bellaterra Cerdanyola del Vallès, Spain
- Red Española de Esclerosis Múltiple (REEM), Instituto de Salud Carlos III, Ministerio de Economía y Competitividad, Fondo de Investigación Sanitaria, Madrid, Spain
| | - Leyre Mestre
- Red Española de Esclerosis Múltiple (REEM), Instituto de Salud Carlos III, Ministerio de Economía y Competitividad, Fondo de Investigación Sanitaria, Madrid, Spain
- Grupo de Neuroinmunología, Departamento de Neurobiología Funcional y de Sistemas, Instituto Cajal, CSIC, Avda. Doctor Arce 37, 28002, Madrid, Spain
| | - Carmen Guaza
- Red Española de Esclerosis Múltiple (REEM), Instituto de Salud Carlos III, Ministerio de Economía y Competitividad, Fondo de Investigación Sanitaria, Madrid, Spain
- Grupo de Neuroinmunología, Departamento de Neurobiología Funcional y de Sistemas, Instituto Cajal, CSIC, Avda. Doctor Arce 37, 28002, Madrid, Spain
| | - María Del Carmen Martínez-Cuesta
- Department of Food Biotechnology and Microbiology, Instituto de Investigación en Ciencias de la Alimentación, CIAL (CSIC-UAM), C/ Nicolás Cabrera 9, 28049, Madrid, Spain
| | - Takeshi Tanoue
- RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Kenya Honda
- RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Juan José González-López
- Universitat Autònoma de Barcelona, 08193, Bellaterra Cerdanyola del Vallès, Spain
- Servei de Microbiologia, Hospital Universitari Vall d'Hebron, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
| | - Xavier Montalban
- Servei de Neurologia-Neuroimmunologia, Vall d'Hebron Institut de Recerca, Hospital Universitari Vall d'Hebron, Centre d'Esclerosi Múltiple de Catalunya, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain
- Universitat Autònoma de Barcelona, 08193, Bellaterra Cerdanyola del Vallès, Spain
- Red Española de Esclerosis Múltiple (REEM), Instituto de Salud Carlos III, Ministerio de Economía y Competitividad, Fondo de Investigación Sanitaria, Madrid, Spain
| | - Carmen Espejo
- Servei de Neurologia-Neuroimmunologia, Vall d'Hebron Institut de Recerca, Hospital Universitari Vall d'Hebron, Centre d'Esclerosi Múltiple de Catalunya, Pg. Vall d'Hebron 119-129, 08035, Barcelona, Spain.
- Universitat Autònoma de Barcelona, 08193, Bellaterra Cerdanyola del Vallès, Spain.
- Red Española de Esclerosis Múltiple (REEM), Instituto de Salud Carlos III, Ministerio de Economía y Competitividad, Fondo de Investigación Sanitaria, Madrid, Spain.
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13
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Immunogenicity Challenges Associated with Subcutaneous Delivery of Therapeutic Proteins. BioDrugs 2021; 35:125-146. [PMID: 33523413 PMCID: PMC7848667 DOI: 10.1007/s40259-020-00465-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2020] [Indexed: 12/12/2022]
Abstract
The subcutaneous route of administration has provided convenient and non-inferior delivery of therapeutic proteins compared to intravenous infusion, but there is potential for enhanced immunogenicity toward subcutaneously administered proteins in a subset of patients. Unwanted anti-drug antibody response toward proteins or monoclonal antibodies upon repeated administration is shown to impact the pharmacokinetics and efficacy of multiple biologics. Unique immunogenicity challenges of the subcutaneous route have been realized through various preclinical and clinical examples, although subcutaneous delivery has often demonstrated comparable immunogenicity to intravenous administration. Beyond route of administration as a treatment-related factor of immunogenicity, certain product-related risk factors are particularly relevant to subcutaneously administered proteins. This review attempts to provide an overview of the mechanism of immune response toward proteins administered subcutaneously (subcutaneous proteins) and comments on product-related risk factors related to protein structure and stability, dosage form, and aggregation. A two-wave mechanism of antigen presentation in the immune response toward subcutaneous proteins is described, and interaction with dynamic antigen-presenting cells possessing high antigen processing efficiency and migratory activity may drive immunogenicity. Mitigation strategies for immunogenicity are discussed, including those in general use clinically and those currently in development. Mechanistic insights along with consideration of risk factors involved inspire theoretical strategies to provide antigen-specific, long-lasting effects for maintaining the safety and efficacy of therapeutic proteins.
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14
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Sepsis and Autoimmune Disease: Pathology, Systems Medicine, and Artificial Intelligence. SYSTEMS MEDICINE 2021. [DOI: 10.1016/b978-0-12-801238-3.11643-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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15
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Vandenhove B, Canti L, Schoemans H, Beguin Y, Baron F, Graux C, Kerre T, Servais S. How to Make an Immune System and a Foreign Host Quickly Cohabit in Peace? The Challenge of Acute Graft- Versus-Host Disease Prevention After Allogeneic Hematopoietic Cell Transplantation. Front Immunol 2020; 11:583564. [PMID: 33193397 PMCID: PMC7609863 DOI: 10.3389/fimmu.2020.583564] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/21/2020] [Indexed: 01/16/2023] Open
Abstract
Allogeneic hematopoietic cell transplantation (alloHCT) has been used as cellular immunotherapy against hematological cancers for more than six decades. Its therapeutic efficacy relies on the cytoreductive effects of the conditioning regimen but also on potent graft-versus-tumor (GVT) reactions mediated by donor-derived immune cells. However, beneficial GVT effects may be counterbalanced by acute GVHD (aGVHD), a systemic syndrome in which donor immune cells attack healthy tissues of the recipient, resulting in severe inflammatory lesions mainly of the skin, gut, and liver. Despite standard prophylaxis regimens, aGVHD still occurs in approximately 20–50% of alloHCT recipients and remains a leading cause of transplant-related mortality. Over the past two decades, advances in the understanding its pathophysiology have helped to redefine aGVHD reactions and clinical presentations as well as developing novel strategies to optimize its prevention. In this review, we provide a brief overview of current knowledge on aGVHD immunopathology and discuss current approaches and novel strategies being developed and evaluated in clinical trials for aGVHD prevention. Optimal prophylaxis of aGVHD would prevent the development of clinically significant aGVHD, while preserving sufficient immune responsiveness to maintain beneficial GVT effects and immune defenses against pathogens.
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Affiliation(s)
- Benoît Vandenhove
- Laboratory of Hematology, GIGA-I3, GIGA Institute, University of Liège, Liège, Belgium
| | - Lorenzo Canti
- Laboratory of Hematology, GIGA-I3, GIGA Institute, University of Liège, Liège, Belgium
| | - Hélène Schoemans
- Department of Clinical Hematology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Yves Beguin
- Laboratory of Hematology, GIGA-I3, GIGA Institute, University of Liège, Liège, Belgium.,Department of Clinical Hematology, CHU of Liège, University of Liège, Liège, Belgium
| | - Frédéric Baron
- Laboratory of Hematology, GIGA-I3, GIGA Institute, University of Liège, Liège, Belgium.,Department of Clinical Hematology, CHU of Liège, University of Liège, Liège, Belgium
| | - Carlos Graux
- Department of Clinical Hematology, CHU UCL Namur (Godinne), Université Catholique de Louvain, Yvoir, Belgium
| | - Tessa Kerre
- Hematology Department, Ghent University Hospital, Ghent University, Ghent, Belgium
| | - Sophie Servais
- Laboratory of Hematology, GIGA-I3, GIGA Institute, University of Liège, Liège, Belgium.,Department of Clinical Hematology, CHU of Liège, University of Liège, Liège, Belgium
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16
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Lymphocyte Immunosuppression and Dysfunction Contributing to Persistent Inflammation, Immunosuppression, and Catabolism Syndrome (PICS). Shock 2020; 55:723-741. [PMID: 33021569 DOI: 10.1097/shk.0000000000001675] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
ABSTRACT Persistent Inflammation, Immune Suppression, and Catabolism Syndrome (PICS) is a disease state affecting patients who have a prolonged recovery after the acute phase of a large inflammatory insult. Trauma and sepsis are two pathologies after which such an insult evolves. In this review, we will focus on the key clinical determinants of PICS: Immunosuppression and cellular dysfunction. Currently, relevant immunosuppressive functions have been attributed to both innate and adaptive immune cells. However, there are significant gaps in our knowledge, as for trauma and sepsis the immunosuppressive functions of these cells have mostly been described in acute phase of inflammation so far, and their clinical relevance for the development of prolonged immunosuppression is mostly unknown. It is suggested that the initial immune imbalance determines the development of PCIS. Additionally, it remains unclear what distinguishes the onset of immune dysfunction in trauma and sepsis and how this drives immunosuppression in these cells. In this review, we will discuss how regulatory T cells (Tregs), innate lymphoid cells, natural killer T cells (NKT cells), TCR-a CD4- CD8- double-negative T cells (DN T cells), and B cells can contribute to the development of post-traumatic and septic immunosuppression. Altogether, we seek to fill a gap in the understanding of the contribution of lymphocyte immunosuppression and dysfunction to the development of chronic immune disbalance. Further, we will provide an overview of promising diagnostic and therapeutic interventions, whose potential to overcome the detrimental immunosuppression after trauma and sepsis is currently being tested.
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17
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Yuzuriha K, Yoshida A, Li S, Kishimura A, Mori T, Katayama Y. Synthesis of peptide conjugates with vitamins for induction of antigen-specific immunotolerance. J Pept Sci 2020; 26:e3275. [PMID: 32671962 DOI: 10.1002/psc.3275] [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: 03/23/2020] [Revised: 06/06/2020] [Accepted: 06/20/2020] [Indexed: 11/07/2022]
Abstract
In this report, we designed conjugates of an antigen peptide with the immunosuppressive vitamins all-trans retinoic acid (ATRA) and vitamin D3 for efficient induction of antigen-specific immunotolerance. We established a synthetic scheme for the preparation of the peptide-vitamin conjugates, which the chemically unstable vitamins tolerated. Among the obtained conjugates, the ATRA conjugate successfully suppressed inflammatory effects in macrophages and dendritic cells and induced antigen presentation in dendritic cells. This synthetic method of conjugate is conceivably applicable to other antigen peptides for induction of antigen-specific immunotolerance.
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Affiliation(s)
- Kazuki Yuzuriha
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Ayaka Yoshida
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Shunyi Li
- Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Akihiro Kishimura
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan.,Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan.,Center for Future Chemistry, Kyushu University, Fukuoka, 819-0395, Japan.,International Research Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan
| | - Takeshi Mori
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan.,Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan.,Center for Future Chemistry, Kyushu University, Fukuoka, 819-0395, Japan
| | - Yoshiki Katayama
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan.,Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, 819-0395, Japan.,Center for Future Chemistry, Kyushu University, Fukuoka, 819-0395, Japan.,International Research Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan.,Centre for Advanced Medicine Innovation, Kyushu University, Fukuoka, 812-8582, Japan.,Department of Biomedical Engineering, Chung Yuan Christian University, Taoyuan City, ROC, 32023, Taiwan
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18
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Jukić T, Jurin Martić A, Ivanković S, Antica M, Pavan Jukić D, Rotim C, Jurin M. The role of regulatory T lymphocytes in immune control of MC-2 fibrosarcoma. Acta Clin Croat 2020; 59:351-358. [PMID: 33456124 PMCID: PMC7808230 DOI: 10.20471/acc.2020.59.02.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The role of T regulatory lymphocytes (Treg) particularly in cancer is well known. The goal of the present study was to determine the contribution of these lymphocytes in the regulation of anti-tumor immunity of CBA/HZgr mice against MC-2 fibrosarcoma (4th generation of methylcholanthrene induced tumor). The levels of T lymphocytes (CD4+, CD8+ and CD4+CD25+) were determined 8 and 20 days after tumor transplantation. Further, the role of CD4+CD25+ (Tregs) in tumor-host interaction was evaluated in vitro and in vivo by using specific monoclonal antibodies. We found that splenocytes of both control and Treg depleted tumor bearing mice strongly but differently inhibited growth of tumor cells in vitro. While splenocytes of untreated mice exhibited significant decrease of this activity (from 74.4% to 62.6% and 32.95%), the splenocytes of Treg depleted mice showed increase of this activity (from 79.5% to 84.3% and 86.2%) from day 6 to day 13 and day 21 after tumor grafting, respectively. Further, upon i.v. injecting specific monoclonal anti-Treg antibody tumor immediately prior to tumor cell intracutaneous transplantation, the tumor was rejected after initial growth. In treated mice, the incidence of Treg cells was very low initially, reaching normal values two weeks later. These animals were shown to be resistant to tumor transplantation four months later.
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Affiliation(s)
| | - Ana Jurin Martić
- 1Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 2Čakovec County Hospital, Čakovec, Croatia; 3Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Rudjer Bošković Institute, Division of Molecular Medicine, Zagreb, Croatia; 5Rudjer Bošković Institute, Division of Molecular Biology, Zagreb, Croatia; 6Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Department of Gynecology and Obstetrics, Osijek, Croatia; 7Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia
| | - Siniša Ivanković
- 1Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 2Čakovec County Hospital, Čakovec, Croatia; 3Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Rudjer Bošković Institute, Division of Molecular Medicine, Zagreb, Croatia; 5Rudjer Bošković Institute, Division of Molecular Biology, Zagreb, Croatia; 6Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Department of Gynecology and Obstetrics, Osijek, Croatia; 7Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia
| | - Mariastefania Antica
- 1Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 2Čakovec County Hospital, Čakovec, Croatia; 3Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Rudjer Bošković Institute, Division of Molecular Medicine, Zagreb, Croatia; 5Rudjer Bošković Institute, Division of Molecular Biology, Zagreb, Croatia; 6Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Department of Gynecology and Obstetrics, Osijek, Croatia; 7Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia
| | - Doroteja Pavan Jukić
- 1Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 2Čakovec County Hospital, Čakovec, Croatia; 3Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Rudjer Bošković Institute, Division of Molecular Medicine, Zagreb, Croatia; 5Rudjer Bošković Institute, Division of Molecular Biology, Zagreb, Croatia; 6Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Department of Gynecology and Obstetrics, Osijek, Croatia; 7Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia
| | - Cecilija Rotim
- 1Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 2Čakovec County Hospital, Čakovec, Croatia; 3Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Rudjer Bošković Institute, Division of Molecular Medicine, Zagreb, Croatia; 5Rudjer Bošković Institute, Division of Molecular Biology, Zagreb, Croatia; 6Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Department of Gynecology and Obstetrics, Osijek, Croatia; 7Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia
| | - Mislav Jurin
- 1Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia; 2Čakovec County Hospital, Čakovec, Croatia; 3Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Rudjer Bošković Institute, Division of Molecular Medicine, Zagreb, Croatia; 5Rudjer Bošković Institute, Division of Molecular Biology, Zagreb, Croatia; 6Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Department of Department of Gynecology and Obstetrics, Osijek, Croatia; 7Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia
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19
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Sepúlveda N, Carneiro J, Lacerda E, Nacul L. Myalgic Encephalomyelitis/Chronic Fatigue Syndrome as a Hyper-Regulated Immune System Driven by an Interplay Between Regulatory T Cells and Chronic Human Herpesvirus Infections. Front Immunol 2019; 10:2684. [PMID: 31824487 PMCID: PMC6883905 DOI: 10.3389/fimmu.2019.02684] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 10/31/2019] [Indexed: 12/13/2022] Open
Abstract
Autoimmunity and chronic viral infections are recurrent clinical observations in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), a complex disease with an unknown cause. Given these observations, the regulatory CD4+ T cells (Tregs) show promise to be good candidates for the underlying pathology due to their capacity to suppress the immune responses against both self and microbial antigens. Here, we discussed the overlooked role of these cells in the chronicity of Human Herpes Virus 6 (HHV6), Herpes Simplex 1 (HSV1), and Epstein–Barr virus (EBV), as often reported as triggers of ME/CFS. Using simulations of the cross-regulation model for the dynamics of Tregs, we illustrated that mild infections might lead to a chronically activated immune responses under control of Tregs if the responding clone has a high autoimmune potential. Such infections promote persistent inflammation and possibly fatigue. We then hypothesized that ME/CFS is a condition characterized by a predominance of this type of infections under control of Tregs. In contrast, healthy individuals are hypothesized to trigger immune responses of a virus-specific clone with a low autoimmune potential. According to this hypothesis, simple model simulations of the CD4+ T-cell repertoire could reproduce the increased density and percentages of Tregs observed in patients suffering from the disease, when compared to healthy controls. A deeper analysis of Tregs in the pathogenesis of ME/CFS will help to assess the validity of this hypothesis.
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Affiliation(s)
- Nuno Sepúlveda
- Department of Infection Biology, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom.,Centre of Statistics and Its Applications, University of Lisbon, Lisbon, Portugal
| | - Jorge Carneiro
- Quantitative Organism Biology Group, Gulbenkian Institute of Science, Oeiras, Portugal
| | - Eliana Lacerda
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Luis Nacul
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
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20
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Guo D, Liu X, Zeng C, Cheng L, Song G, Hou X, Zhu L, Zou K. Estrogen receptor β activation ameliorates DSS-induced chronic colitis by inhibiting inflammation and promoting Treg differentiation. Int Immunopharmacol 2019; 77:105971. [PMID: 31678865 DOI: 10.1016/j.intimp.2019.105971] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 10/09/2019] [Accepted: 10/09/2019] [Indexed: 12/18/2022]
Abstract
Estrogen receptor (ER) β activation has anti-inflammatory activity. However, its effect on the development of inflammatory bowel disease (IBD) and the underlying mechanism have not been clarified. This study aimed to assess the clinical value of ERβ+CD4+ T cells in IBD patients and examine the anti-inflammatory role of ERβ activation in dextran sulfate sodium (DSS)-induced chronic colitis in mice. We investigated the effects of ERB041 (an ERβ-specific agonist) on inflammatory cytokines and pro-inflammatory T-cell and regulatory T-cell (Treg) responses in murine colitis. We tested the role of ERβ activation on Treg differentiation and its activity to suppress T-cell proliferation in vitro. We found that reduced frequency of circulating ERβ+CD4+ T cells in IBD patients was negatively correlated with inflammation and disease severity. ERβ and FoxP3 expression co-localized in the intestinal tissues of IBD patients. Treatment with ERB041 significantly mitigated colitis-induced weight loss, inflammation, and disease severity. It also restored the ERβ+CD4+ T cell population in the spleen and colon lamina propria of these mice. ERB041 treatment inhibited CD4+CD25- and CD8+ T cell infiltration and restored Tregs and activated T-cell immunoreceptor with Ig and ITIM domains (TIGIT)+ Tregs in the colon lamina propria. In vitro, we found that ERβ activation enhanced Treg differentiation, immunosuppression, and TGF-β1/Smad signaling in CD4+ T cells. Our data suggest that ERβ+CD4+ T cells represent a potential biomarker for evaluating IBD disease severity, and ERβ activation may be valuable for the treatment of IBD by enhancing the Treg response.
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Affiliation(s)
- Di Guo
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaojing Liu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Cui Zeng
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ling Cheng
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Gengqing Song
- Department of Gastroenterology, Hepatology & Nutrition, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Xiaohua Hou
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Liangru Zhu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Kaifang Zou
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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21
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Mukhin VE, Polyakova YV, Kaabak MM, Babenko NN, Bryzgalina EV, V'yunkova YN. [Control and prevention of kidney transplant rejection: the role and possibilities for the clinical use of regulatory T-cells in transplantation]. Khirurgiia (Mosk) 2019:80-85. [PMID: 31532171 DOI: 10.17116/hirurgia201909180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This article discusses the need to implement effective methods for monitoring immune status and rehabilitation of patients after kidney transplantation. Induction of immunological tolerance which allows minimizing or even completely canceling supportive immunosuppressive therapy is one of the key tasks in the field of organ transplantation. Regulatory T-cells (TREGs) play an important role in maintaining immunological homeostasis, including limiting kidney transplant rejection, and potentially contribute to the development of immunological tolerance. At the same time, for the introduction of TREG therapy into clinical practice, it is necessary to overcome a number of unsolved problems, such as induction and cultivation of a sufficient number of TREG cells for therapeutic action as well as reducing the risks associated with TREG conversion to effector lymphocytes or an undesirable non-specific immunosuppressive effect. This review examines both the impact of common post-transplant pharmacological immunosuppression approaches on TREGs and the therapeutic potential of TREG cell cultures in prevention of kidney transplant rejection. The questions of ex vivo TREG manufacturing process and possible threats of applying cell technologies in this branch of transplantology were considered.
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Affiliation(s)
- V E Mukhin
- Petrovsky Russian Research Center for Surgery, Moscow, Russia
| | - Yu V Polyakova
- Petrovsky Russian Research Center for Surgery, Moscow, Russia
| | - M M Kaabak
- Petrovsky Russian Research Center for Surgery, Moscow, Russia
| | - N N Babenko
- Petrovsky Russian Research Center for Surgery, Moscow, Russia
| | - E V Bryzgalina
- Moscow State University im. M.V. Lomonosov, Moscow, Russia
| | - Yu N V'yunkova
- Petrovsky Russian Research Center for Surgery, Moscow, Russia
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22
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Balancing cancer immunotherapy and immune-related adverse events: The emerging role of regulatory T cells. J Autoimmun 2019; 104:102310. [PMID: 31421963 DOI: 10.1016/j.jaut.2019.102310] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 07/24/2019] [Indexed: 02/06/2023]
Abstract
Advances in our understanding οf tumor immunity have prompted a paradigm shift in oncology, with the emergence of immunotherapy, where therapeutic agents are used to target immune cells rather than cancer cells. A real breakthrough in the field of immunotherapy came with the use of immune checkpoint inhibitors (ICI), namely antagonistic antibodies that block key immune regulatory molecules (checkpoint molecules), such as cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4), programmed cell death protein (PD-1) and its ligand PD-L1, that under physiologic conditions suppress T cell effector function. However, despite the enormous success, a significant proportion of patients do not respond, while responses are frequently accompanied by life-threatening autoimmune related adverse events (irAEs). A major impediment in the effectiveness of ICI immunotherapy is the tumoral resistance, which is dependent on the immunosuppressive nature of tumor microenvironment (TME). Regulatory T cells (Tregs) are among the most abundant suppressive cells in the TME and their presence has been correlated with tumor progression, invasiveness as well as metastasis. Tregs are characterized by the expression of the transcription factor Foxp3 and various mechanisms ranging from cell-to-cell contact to secretion of inhibitory molecules have been implicated in their function. Notably, Tregs amply express most of the checkpoint molecules such as CTLA4, PD1 and LAG3 and therefore represent a direct target of ICI immunotherapy. Taking into consideration the critical role of Tregs in maintenance of immune homeostasis and avoidance of autoimmunity it is plausible that targeting of Tregs by ICI immunotherapy results in the development of irAEs. Since the use of ICI becomes common, and new immune checkpoint molecules are currently under clinical trials for the treatment of cancer, the occurrence of irAEs is expected to dramatically rise. Herein we review the current literature focusing on the role of Tregs in cancer evolution, ICI response and development of irAEs. Unraveling the complex mechanisms that hinder the tumor immune surveillance and in particular how ICI immunotherapy imprint on Treg activities to promote cancer regression while avoid development of irAEs, will empower the design of novel immunotherapeutic modalities in cancer with increased efficacy and diminished adverse events.
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23
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Kudryavtsev I, Serebriakova M, Zhiduleva E, Murtazalieva P, Titov V, Malashicheva A, Shishkova A, Semenova D, Irtyuga O, Isakov D, Mitrofanova L, Moiseeva O, Golovkin A. CD73 Rather Than CD39 Is Mainly Involved in Controlling Purinergic Signaling in Calcified Aortic Valve Disease. Front Genet 2019; 10:604. [PMID: 31402927 PMCID: PMC6669234 DOI: 10.3389/fgene.2019.00604] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 06/07/2019] [Indexed: 12/30/2022] Open
Abstract
The study aimed to compare composition of peripheral blood T-cell subsets and assess their surface expression of CD39 and CD73 ectonucleotidases in patients with severe and moderate aortic stenosis (AS) as well as to evaluate involvement of T-cell-mediated immune processes in valve calcification. The study was performed with 38 patients suffering from severe calcified aortic stenosis (SAS), 33 patients with MAS, and 30 apparently healthy volunteers (HVs). The relative distribution and percentage of T-cell subsets expressing CD39 and CD73 were evaluated by flow cytometry. T helper (Th) and cytotoxic T-cell subsets (Tcyt) were identified by using CD3, CD4, and CD8 antibodies. Regulatory T cells (Tregs) were characterized by the expression of CD3, CD4, and high IL-2R alpha chain (CD25high) levels. CD45R0 and CD62L were used to assess differentiation stage of Th, Tcyt, and Treg subsets. It was found that MAS and SAS patients differed in terms of relative distribution of Tcyt and absolute number of Treg. Moreover, the absolute number of Tcyt and terminally differentiated CD45RA-positive effector T-cells (TEMRA) subset was significantly higher in SAS vs. MAS patients and HVs. However, the absolute and relative number of naïve Th and the absolute number of Treg were significantly higher in MAS vs. SAS patients; the relative number of naïve Tregs was significantly (p < 0.01) decreased in SAS patients. It was shown that CD73 expression was significantly higher in SAS vs. MAS patients noted in all EM, CM, TEMRA, and naïve Th cell subsets. However, only the latter were significantly increased (p = 0.003) in patients compared with HVs. SAS vs. MAS patients were noted to have significantly higher percentage of CD73+ EM Tcyt (p = 0.006) and CD73+ CM Tcyt (p = 0.002). The expression of CD73 in patients significantly differed in all three Treg populations such as EM (p = 0.049), CM (p = 0.044), and naïve (p < 0.001). No significant differences in CD39 expression level was found in MAS and SAS patients compared with the HV group. Overall, the data obtained demonstrated that purinergic signaling was involved in the pathogenesis of aortic stenosis and calcification potentially acting via various cell types, wherein among enzymes, degrading extracellular ATP CD73 rather than CD39 played a prominent role.
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Affiliation(s)
- Igor Kudryavtsev
- Institution of Experimental Medicine, St. Petersburg, Russia.,Far Eastern Federal University, Vladivostok, Russia
| | | | | | | | - Vladislav Titov
- Almazov National Medical Research Centre, St. Petersburg, Russia
| | | | | | - Daria Semenova
- Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Olga Irtyuga
- Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Dmitry Isakov
- Institution of Experimental Medicine, St. Petersburg, Russia.,Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | | | - Olga Moiseeva
- Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Alexey Golovkin
- Almazov National Medical Research Centre, St. Petersburg, Russia
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24
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Keeler GD, Markusic DM, Hoffman BE. Liver induced transgene tolerance with AAV vectors. Cell Immunol 2019; 342:103728. [PMID: 29576315 PMCID: PMC5988960 DOI: 10.1016/j.cellimm.2017.12.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 12/01/2017] [Accepted: 12/03/2017] [Indexed: 12/24/2022]
Abstract
Immune tolerance is a vital component of immunity, as persistent activation of immune cells causes significant tissue damage and loss of tolerance leads to autoimmunity. Likewise, unwanted immune responses can occur in inherited disorders, such as hemophilia and Pompe disease, in which patients lack any expression of protein, during treatment with enzyme replacement therapy, or gene therapy. While the liver has long been known as being tolerogenic, it was only recently appreciated in the last decade that liver directed adeno-associated virus (AAV) gene therapy can induce systemic tolerance to a transgene. In this review, we look at the mechanisms behind liver induced tolerance, discuss different factors influencing successful tolerance induction with AAV, and applications where AAV mediated tolerance may be helpful.
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Affiliation(s)
- Geoffrey D Keeler
- Department of Pediatrics, Div. Cell and Molecular Therapy, University of Florida, United States
| | - David M Markusic
- Department of Pediatrics, Div. Cell and Molecular Therapy, University of Florida, United States
| | - Brad E Hoffman
- Department of Pediatrics, Div. Cell and Molecular Therapy, University of Florida, United States; Department of Neuroscience, University of Florida, United States.
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25
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Whiteside TL. Human regulatory T cells (Treg) and their response to cancer. EXPERT REVIEW OF PRECISION MEDICINE AND DRUG DEVELOPMENT 2019; 4:215-228. [PMID: 32953989 PMCID: PMC7500484 DOI: 10.1080/23808993.2019.1634471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 06/18/2019] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Regulatory T cells (Treg) and their role in health and disease is being intensively investigated. Today, human Treg emerge as a highly heterogeneous subset of CD4+ T cells which mediate immune suppression but also regulate responses of non-immune cells. In cancer, Treg occupy a critical although not yet entirely understood role. AREAS COVERED Newly acquired insights into Treg indicate a much greater plasticity and functional heterogeneity of this T cell subset than was previously known. Functional redundancy of Treg and their interactions with a variety of immune and non-immune cellular targets emphasize the central role Treg play in cancer. Treg not only regulate the host responses to cancer; they may also regulate responses to immune therapies. The impact of immune checkpoint blockade on Treg survival, stability and suppressive activity remains to be elucidated. T cell reprogramming by tumor-derived factors, including tumor-derived exosomes (TEX), plays a key role in shaping the Treg repertoire in the tumor microenvironment (TME). The reprogrammed or induced iTreg acquire capabilities to strongly down-regulate anti-tumor immune responses by mechanisms that are specific for each TME. Therapeutic silencing of such Treg calls for the discrimination of "bad" from "good" Treg subsets, an approach that remains elusive in the absence of a definitive "Treg signature." EXPERT OPINION Context-related plasticity and heterogeneity of Treg in the TME are significant barriers to selective therapeutic depletion of those Treg subsets that are reprogramed by the tumor to suppress anti-tumor immunity.
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Affiliation(s)
- Theresa L. Whiteside
- Departments of Pathology, Immunology and Otolaryngology, University of Pittsburgh School of Medicine and UPMC Hillman Cancer Center, Pittsburgh, PA, 15213, USA
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26
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Recent advances in the study of regulatory T cells in gastric cancer. Int Immunopharmacol 2019; 73:560-567. [PMID: 31181438 DOI: 10.1016/j.intimp.2019.05.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 05/05/2019] [Accepted: 05/06/2019] [Indexed: 12/15/2022]
Abstract
Gastric cancer (GC), which features a complex pathogenesis and mechanism, remains refractory. FOXP3+ regulatory T cells (Tregs), which have been implicated in the progression of gastric cancer, play an immunosuppressive role in the tumor microenvironment. However, the prognostic value of Treg infiltration is still controversial in GC patients. Recently, the association of Tregs with the clinicopathological characteristics of GC patients, the prognostic value of Tregs alone or its combination with other factors to GC patients, the role of Tregs in GC tumor microenvironment, clinical applications and Tregs-targeted therapies for GC patients have become hot issues. In this review, we are going to discuss these scientific researches which focused on these topics.
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27
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Podestà MA, Remuzzi G, Casiraghi F. Mesenchymal Stromal Cells for Transplant Tolerance. Front Immunol 2019; 10:1287. [PMID: 31231393 PMCID: PMC6559333 DOI: 10.3389/fimmu.2019.01287] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 05/21/2019] [Indexed: 12/18/2022] Open
Abstract
In solid organ transplantation lifelong immunosuppression exposes transplant recipients to life-threatening complications, such as infections and malignancies, and to severe side effects. Cellular therapy with mesenchymal stromal cells (MSC) has recently emerged as a promising strategy to regulate anti-donor immune responses, allowing immunosuppressive drug minimization and tolerance induction. In this review we summarize preclinical data on MSC in solid organ transplant models, focusing on potential mechanisms of action of MSC, including down-regulation of effector T-cell response and activation of regulatory pathways. We will also provide an overview of available data on safety and feasibility of MSC therapy in solid organ transplant patients, highlighting the issues that still need to be addressed before establishing MSC as a safe and effective tolerogenic cell therapy in transplantation.
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Affiliation(s)
- Manuel Alfredo Podestà
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy.,Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Giuseppe Remuzzi
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Federica Casiraghi
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
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28
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Ikebuchi R, Fujimoto M, Nakanishi Y, Okuyama H, Moriya T, Kusumoto Y, Tomura M. Functional Phenotypic Diversity of Regulatory T Cells Remaining in Inflamed Skin. Front Immunol 2019; 10:1098. [PMID: 31156643 PMCID: PMC6534040 DOI: 10.3389/fimmu.2019.01098] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 04/30/2019] [Indexed: 12/25/2022] Open
Abstract
Regulatory T cells (Tregs) migrate between lymphoid and peripheral tissues for maintaining immune homeostasis. Tissue-specific function and functional heterogeneity of Tregs have been suggested, however, correlation between them and inter-tissue movement remain unknown. We used a contact hypersensitivity model of mice expressing a photoconvertible protein for tracking migratory cells. After marking cells in skin, we purified Tregs exhibiting a different migration pattern [Tregs recruiting to or remaining in the skin and emigrating from the skin to draining lymph nodes (dLNs) within half a day] and examined single-cell gene and protein expression profiles. Correlation and unsupervised clustering analyses revealed that Tregs in both skin and dLNs comprised two subpopulations, one highly expressing Nrp1 with variable CD25, Granzyme B, and/or CTLA-4 expression and another with 3 subsets strongly expressing CD25, Granzyme B, or CTLA-4 together with CD39. Characteristic subsets of Tregs remaining in the skin displayed higher CD25 and CD39 expression and lower Granzyme B and CTLA-4 expression compared with Tregs migrating to the skin. In addition, CCR5 expression in Tregs in skin was positively and negatively correlated with CD39 and Nrp-1 expression, respectively. To assess the predictive value of these data for immunotherapy, we blocked CCR5 signaling and found modest downregulation of CD39 and modest upregulation of Nrp1 expression in skin Tregs. Our data reveal a high functional diversity of Tregs in skin that is strongly related to trafficking behavior, particularly skin retention. Modulation of tissue-specific trafficking and function is a promising clinical strategy against autoimmune, infectious, and neoplastic diseases.
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Affiliation(s)
- Ryoyo Ikebuchi
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Maika Fujimoto
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Japan
| | - Yasutaka Nakanishi
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Japan
| | - Hiromi Okuyama
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Japan
| | - Taiki Moriya
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Japan
| | - Yutaka Kusumoto
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Japan
| | - Michio Tomura
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Japan
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29
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Mock JR, Dial CF, Tune MK, Norton DL, Martin JR, Gomez JC, Hagan RS, Dang H, Doerschuk CM. Transcriptional analysis of Foxp3+ Tregs and functions of two identified molecules during resolution of ALI. JCI Insight 2019; 4:124958. [PMID: 30753170 DOI: 10.1172/jci.insight.124958] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 02/05/2019] [Indexed: 12/17/2022] Open
Abstract
Recovery from acute lung injury (ALI) is an active process. Foxp3+ Tregs contribute to recovery from ALI through modulating immune responses and enhancing alveolar epithelial proliferation and tissue repair. The current study investigates Treg transcriptional profiles during resolution of ALI in mice. Tregs from either lung or splenic tissue were isolated from uninjured mice or mice recovering from ALI and then examined for differential gene expression between these conditions. In mice with ALI, Tregs isolated from the lungs had hundreds of differentially expressed transcripts compared with those from the spleen, indicating that organ specificity and microenvironment are critical in Treg function. These regulated transcripts suggest which intracellular signaling pathways modulate Treg behavior. Interestingly, several transcripts having no prior recognized function in Tregs were differentially expressed by lung Tregs during resolution. Further investigation into 2 identified transcripts, Mmp12 and Sik1, revealed that Treg-specific expression of each plays a role in Treg-promoted ALI resolution. This study provides potentially novel information describing the signals that may expand resident Tregs, recruit or retain them to the lung during ALI, and modulate their function. The results provide insight into both tissue- and immune microenvironment-specific transcriptional differences through which Tregs direct their effects.
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Affiliation(s)
- Jason R Mock
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine.,Marsico Lung Institute, and
| | - Catherine F Dial
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine.,Marsico Lung Institute, and
| | - Miriya K Tune
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine.,Marsico Lung Institute, and
| | - Dustin L Norton
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine.,Marsico Lung Institute, and
| | - Jessica R Martin
- Marsico Lung Institute, and.,Center for Airways Disease, University of North Carolina (UNC), Chapel Hill, North Carolina, USA
| | - John C Gomez
- Marsico Lung Institute, and.,Center for Airways Disease, University of North Carolina (UNC), Chapel Hill, North Carolina, USA
| | - Robert S Hagan
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine.,Marsico Lung Institute, and
| | | | - Claire M Doerschuk
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine.,Marsico Lung Institute, and.,Center for Airways Disease, University of North Carolina (UNC), Chapel Hill, North Carolina, USA
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30
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Gholiha AR, Hollander P, Hedstrom G, Sundstrom C, Molin D, Smedby KE, Hjalgrim H, Glimelius I, Amini RM, Enblad G. High tumour plasma cell infiltration reflects an important microenvironmental component in classic Hodgkin lymphoma linked to presence of B-symptoms. Br J Haematol 2018; 184:192-201. [PMID: 30506671 DOI: 10.1111/bjh.15703] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 09/25/2018] [Indexed: 12/16/2022]
Abstract
Plasma cells are important prognostic actors in different malignancies. The tumour microenvironmental composition in classic Hodgkin lymphoma (cHL) is a major prognostic key element; however, clinicopathological studies regarding plasma cells in cHL are lacking. The aim of this study was to investigate CD138+ (also termed SDC1+) plasma cell and IgG4 producing (IgG4+) plasma cells infiltration in the microenvironment of cHL. Immunohistochemistry with anti-CD138 and IgG4 antibodies was performed on diagnostic tumour biopsies from 124 patients with cHL, on tissue micro array (TMA). In 120 cases, CD138+ plasma cell-infiltration was associated with the presence of B-symptoms (P = 0·028) and advanced stage, IIB-IVB (P = 0·009). In multivariate analysis, CD138+ plasma cells correlated with eosinophil infiltration (P = 0·013). The subgroup of IgG4+ plasma cells was analysed in 122 cases and only correlated to CD138+ plasma cells (P = 0·004). Patients with high proportion of tumour infiltrating CD138+ plasma cells (defined as ≥10%), had a more inferior event-free survival (P = 0·007) and overall survival (P = 0·004) than patients with a low proportion of infiltrating CD138+ plasma cells (<10%), although significance was not maintained in multivariate analysis. In summary, a high proportion of tumour-associated plasma cells in cHL reflect an important component in the microenvironment of cHL.
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Affiliation(s)
- Alex R Gholiha
- Experimental and Clinical Oncology, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Peter Hollander
- Section of Pathology, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala University Hospital, Uppsala, Sweden
| | - Gustaf Hedstrom
- Experimental and Clinical Oncology, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Christer Sundstrom
- Section of Pathology, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala University Hospital, Uppsala, Sweden
| | - Daniel Molin
- Experimental and Clinical Oncology, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Karin E Smedby
- Division of Clinical Epidemiology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Henrik Hjalgrim
- Division of Clinical Epidemiology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Ingrid Glimelius
- Experimental and Clinical Oncology, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Rose-Marie Amini
- Section of Pathology, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala University Hospital, Uppsala, Sweden
| | - Gunilla Enblad
- Experimental and Clinical Oncology, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
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31
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Di Ianni M, Del Papa B, Baldoni S, Di Tommaso A, Fabi B, Rosati E, Natale A, Santarone S, Olioso P, Papalinetti G, Giancola R, Accorsi P, Di Bartolomeo P, Sportoletti P, Falzetti F. NOTCH and Graft-Versus-Host Disease. Front Immunol 2018; 9:1825. [PMID: 30147692 PMCID: PMC6096230 DOI: 10.3389/fimmu.2018.01825] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 07/24/2018] [Indexed: 12/19/2022] Open
Abstract
In allogeneic hematopoietic stem cell transplantation, which is the major curative therapy for hematological malignancies, T cells play a key role in the development of graft-versus-host disease (GvHD). NOTCH pathway is a conserved signal transduction system that regulates T cell development and differentiation. The present review analyses the role of the NOTCH signaling as a new regulator of acute GvHD. NOTCH signaling could also represent a new therapeutic target for GvHD.
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Affiliation(s)
- Mauro Di Ianni
- Department of Medicine and Aging Sciences, University of Chieti-Pescara, Chieti, Italy.,Department of Hematology, Transfusion Medicine and Biotechnologies, Ospedale Civile, Pescara, Italy
| | - Beatrice Del Papa
- Institute of Hematology-Centro di Ricerche Emato-Oncologiche (CREO), University of Perugia, Perugia, Italy
| | - Stefano Baldoni
- Department of Life, Health and Environmental Sciences, Hematology Section, University of L'Aquila, L'Aquila, Italy
| | - Ambra Di Tommaso
- Department of Life, Health and Environmental Sciences, Hematology Section, University of L'Aquila, L'Aquila, Italy
| | - Bianca Fabi
- Department of Life, Health and Environmental Sciences, Hematology Section, University of L'Aquila, L'Aquila, Italy
| | - Emanuela Rosati
- Department of Experimental Medicine, Biosciences and Medical Embriology Section, University of Perugia, Perugia, Italy
| | - Annalisa Natale
- Department of Hematology, Transfusion Medicine and Biotechnologies, Ospedale Civile, Pescara, Italy
| | - Stella Santarone
- Department of Hematology, Transfusion Medicine and Biotechnologies, Ospedale Civile, Pescara, Italy
| | - Paola Olioso
- Department of Hematology, Transfusion Medicine and Biotechnologies, Ospedale Civile, Pescara, Italy
| | - Gabriele Papalinetti
- Department of Hematology, Transfusion Medicine and Biotechnologies, Ospedale Civile, Pescara, Italy
| | - Raffaella Giancola
- Department of Hematology, Transfusion Medicine and Biotechnologies, Ospedale Civile, Pescara, Italy
| | - Patrizia Accorsi
- Department of Hematology, Transfusion Medicine and Biotechnologies, Ospedale Civile, Pescara, Italy
| | - Paolo Di Bartolomeo
- Department of Hematology, Transfusion Medicine and Biotechnologies, Ospedale Civile, Pescara, Italy
| | - Paolo Sportoletti
- Institute of Hematology-Centro di Ricerche Emato-Oncologiche (CREO), University of Perugia, Perugia, Italy
| | - Franca Falzetti
- Institute of Hematology-Centro di Ricerche Emato-Oncologiche (CREO), University of Perugia, Perugia, Italy
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32
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Nath A, Haktanirlar G, Varga Á, Molnár MA, Albert K, Galambos I, Koris A, Vatai G. Biological Activities of Lactose-Derived Prebiotics and Symbiotic with Probiotics on Gastrointestinal System. ACTA ACUST UNITED AC 2018; 54:medicina54020018. [PMID: 30344249 PMCID: PMC6037253 DOI: 10.3390/medicina54020018] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 03/23/2018] [Accepted: 04/04/2018] [Indexed: 02/07/2023]
Abstract
Lactose-derived prebiotics provide wide ranges of gastrointestinal comforts. In this review article, the probable biochemical mechanisms through which lactose-derived prebiotics offer positive gastrointestinal health are reported along with the up-to-date results of clinical investigations; this might be the first review article of its kind, to the best of our knowledge. Lactose-derived prebiotics have unique biological and functional values, and they are confirmed as ‘safe’ by the Food and Drug Administration federal agency. Medical practitioners frequently recommend them as therapeutics as a pure form or combined with dairy-based products (yoghurt, milk and infant formulas) or fruit juices. The biological activities of lactose-derived prebiotics are expressed in the presence of gut microflora, mainly probiotics (Lactobacillus spp. in the small intestine and Bifidobacterium spp. in the large intestine). Clinical investigations reveal that galacto-oligosaccharide reduces the risks of several types of diarrhea (traveler’s diarrhea, osmotic diarrhea and Clostridium difficile associated relapsing diarrhea). Lactulose and lactosucrose prevent inflammatory bowel diseases (Crohn’s disease and ulcerative colitis). Lactulose and lactitol reduce the risk of hepatic encephalopathy. Furthermore, lactulose, galacto-oligosaccharide and lactitol prevent constipation in individuals of all ages. It is expected that the present review article will receive great attention from medical practitioners and food technologists.
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Affiliation(s)
- Arijit Nath
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
- Soós Ernő Water Technology Research Centre, Faculty of Engineering, University of Pannonia, Zrínyi M. u. 18, H-8800 Nagykanizsa, Hungary.
| | - Gokce Haktanirlar
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
| | - Áron Varga
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
| | - Máté András Molnár
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
| | - Krisztina Albert
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
| | - Ildikó Galambos
- Soós Ernő Water Technology Research Centre, Faculty of Engineering, University of Pannonia, Zrínyi M. u. 18, H-8800 Nagykanizsa, Hungary.
| | - András Koris
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
| | - Gyula Vatai
- Department of Food Engineering, Faculty of Food Science, Szent István University, Ménesi st 44, H-1118 Budapest, Hungary.
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33
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Mair I, Zandee SEJ, Toor IS, Saul L, McPherson RC, Leech MD, Smyth DJ, O’Connor RA, Henderson NC, Anderton SM. A Context-Dependent Role for αv Integrins in Regulatory T Cell Accumulation at Sites of Inflammation. Front Immunol 2018; 9:264. [PMID: 29535709 PMCID: PMC5834440 DOI: 10.3389/fimmu.2018.00264] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 01/30/2018] [Indexed: 01/20/2023] Open
Abstract
Several inflammatory diseases including multiple sclerosis and inflammatory bowel disease have been associated with dysfunctional and/or reduced numbers of Foxp3+ regulatory T cells (Treg). While numerous mechanisms of action have been discovered by which Treg can exert their function, disease-specific Treg requirements remain largely unknown. We found that the integrin αv, which can pair with several β subunits including β8, is highly upregulated in Treg at sites of inflammation. Using mice that lacked αv expression or β8 expression specifically in Treg, we demonstrate that there was no deficit in Treg accumulation in the central nervous system during experimental autoimmune encephalomyelitis and no difference in the resolution of disease compared to control mice. In contrast, during a curative T cell transfer model of colitis, Treg lacking all αv integrins were found at reduced proportions and numbers in the inflamed gut. This led to a quantitative impairment in the ability of αv-deficient Treg to reverse disease when Treg numbers in the inflamed colon were below a threshold. Increase of the number of curative Treg injected was able to rescue this phenotype, indicating that αv integrins were not required for the immunosuppressive function of Treg per se. In accordance with this, αv deficiency did not impact on the capacity of Treg to suppress proliferation of naive conventional T cells in vitro as well as in vivo. These observations demonstrate that despite the general upregulation of αv integrins in Treg at sites of inflammation, they are relevant for adequate Treg accumulation only in specific disease settings. The understanding of disease-specific mechanisms of action by Treg has clear implications for Treg-targeted therapies.
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Affiliation(s)
- Iris Mair
- MRC Centre for Inflammation Research, Centre for Multiple Sclerosis Research, BHF Centre for Cardiovascular Science, and Centre for Immunity Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Stephanie E. J. Zandee
- MRC Centre for Inflammation Research, Centre for Multiple Sclerosis Research, BHF Centre for Cardiovascular Science, and Centre for Immunity Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Iqbal S. Toor
- MRC Centre for Inflammation Research, Centre for Multiple Sclerosis Research, BHF Centre for Cardiovascular Science, and Centre for Immunity Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Louise Saul
- MRC Centre for Inflammation Research, Centre for Multiple Sclerosis Research, BHF Centre for Cardiovascular Science, and Centre for Immunity Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Rhoanne C. McPherson
- MRC Centre for Inflammation Research, Centre for Multiple Sclerosis Research, BHF Centre for Cardiovascular Science, and Centre for Immunity Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Melanie D. Leech
- MRC Centre for Inflammation Research, Centre for Multiple Sclerosis Research, BHF Centre for Cardiovascular Science, and Centre for Immunity Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Danielle J. Smyth
- MRC Centre for Inflammation Research, Centre for Multiple Sclerosis Research, BHF Centre for Cardiovascular Science, and Centre for Immunity Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Richard A. O’Connor
- MRC Centre for Inflammation Research, Centre for Multiple Sclerosis Research, BHF Centre for Cardiovascular Science, and Centre for Immunity Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Neil C. Henderson
- MRC Centre for Inflammation Research, Centre for Multiple Sclerosis Research, BHF Centre for Cardiovascular Science, and Centre for Immunity Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Stephen M. Anderton
- MRC Centre for Inflammation Research, Centre for Multiple Sclerosis Research, BHF Centre for Cardiovascular Science, and Centre for Immunity Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
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34
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Agua-Doce A, Caridade M, Oliveira VG, Bergman L, Lafaille MC, Lafaille JJ, Demengeot J, Graca L. Route of Antigen Presentation Can Determine the Selection of Foxp3-Dependent or Foxp3-Independent Dominant Immune Tolerance. THE JOURNAL OF IMMUNOLOGY 2017; 200:101-109. [PMID: 29167234 DOI: 10.4049/jimmunol.1601886] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 10/25/2017] [Indexed: 11/19/2022]
Abstract
It has been shown that dominant tolerance, namely in transplantation, requires Foxp3+ regulatory T cells. Although most tolerance-inducing regimens rely on regulatory T cells, we found that induction of tolerance to proteins in aluminum hydroxide can be achieved in Foxp3-deficient mice using nondepleting anti-CD4 Abs. This type of tolerance is Ag specific, and tolerant mice retain immune competence to respond to unrelated Ags. We demonstrated with chicken OVA-specific TCR-transgenic mice that the same tolerizing protocol (CD4 blockade) and the same target Ag (OVA) achieves Foxp3-dependent transplantation tolerance to OVA-expressing skin grafts, but Foxp3-independent tolerance when the Ag is provided as OVA-aluminum hydroxide. In the latter case, we found that tolerance induction triggered recessive mechanisms leading to elimination of effector cells and, simultaneously, a dominant mechanism associated with the emergence of an anergic and regulatory CTLA-4+IL-2lowFoxp3- T cell population, where the tolerance state is IL-10 dependent. Such Foxp3-independent mechanisms can improve the efficacy of tolerance-inducing protocols.
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Affiliation(s)
- Ana Agua-Doce
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal.,Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal; and
| | - Marta Caridade
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal.,Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal; and
| | - Vanessa G Oliveira
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal.,Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal; and
| | - Lisa Bergman
- Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal; and
| | - Maria C Lafaille
- Department of Pathology, Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, NY 10016
| | - Juan J Lafaille
- Department of Pathology, Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, NY 10016
| | | | - Luis Graca
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; .,Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal; and
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35
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Gutowska-Owsiak D, Ogg GS. Therapeutic vaccines for allergic disease. NPJ Vaccines 2017; 2:12. [PMID: 29263869 PMCID: PMC5604746 DOI: 10.1038/s41541-017-0014-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/03/2017] [Accepted: 03/20/2017] [Indexed: 12/14/2022] Open
Abstract
Allergic diseases are highly prevalent worldwide and affect all age groups, contributing to a high personal and socioeconomic burden. Treatment with an “allergy vaccine” or allergen immunotherapy aims to provide long-lasting benefits by inducing unresponsiveness to the relevant antigen. The consequences of the therapy are considered disease modifying and range from dampening of the immediate immune responses to the reduction of secondary tissue remodeling. Furthermore, allergen immunotherapy interventions have a potential to slow or cease the development of additional allergic manifestations with a long-term overall effect on morbidity and quality of life. Here, we review proposed mechanisms underlying the therapeutic effects of immunotherapy for allergic diseases. Further, we discuss both standard and novel approaches and possible future directions in the development of allergen immunotherapy.
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Affiliation(s)
- Danuta Gutowska-Owsiak
- MRC Human Immunology Unit, NIHR Biomedical Research Centre, Radcliffe Department of Medicine, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Graham S Ogg
- MRC Human Immunology Unit, NIHR Biomedical Research Centre, Radcliffe Department of Medicine, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
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36
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Abstract
Type 1 diabetes is an autoimmune disorder in which the immune system attacks and destroys insulin-producing islet cells of the pancreas. Although islet transplantation has proved to be successful for some patients with type 1 diabetes, its widespread use is limited by islet donor shortage and the requirement for lifelong immunosuppression. An encapsulation strategy that can prevent the rejection of xenogeneic islets or of stem cell-derived allogeneic islets can potentially eliminate both of these barriers. Although encapsulation technology has met several challenges, the convergence of expertise in materials, nanotechnology, stem cell biology and immunology is allowing us to get closer to the goal of encapsulated islet cell therapy for humans.
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Affiliation(s)
- Tejal Desai
- University of California, San Francisco, Department of Bioengineering and Therapeutic Sciences, Byers Hall Rm 203C, MC 2520, 1700 4th Street, San Francisco, California 94158-2330, USA
| | - Lonnie D Shea
- University of Michigan, Department of Biomedical Engineering, 1119 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109-2099, USA
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37
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Mohr Gregoriussen AM, Bohr HG. A Novel Model on DST-Induced Transplantation Tolerance by the Transfer of Self-Specific Donor tTregs to a Haplotype-Matched Organ Recipient. Front Immunol 2017; 8:9. [PMID: 28270810 PMCID: PMC5319400 DOI: 10.3389/fimmu.2017.00009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 01/04/2017] [Indexed: 12/27/2022] Open
Abstract
Donor-specific blood transfusion (DST) can lead to significant prolongation of allograft survival in experimental animal models and sometimes human recipients of solid organs. The mechanisms responsible for the beneficial effect on graft survival have been a topic of research and debate for decades and are not yet fully elucidated. Once we discover how the details of the mechanisms involved are linked, we could be within reach of a procedure making it possible to establish donor-specific tolerance with minimal or no immunosuppressive medication. Today, it is well established that CD4+Foxp3+ regulatory T cells (Tregs) are indispensable for maintaining immunological self-tolerance. A large number of animal studies have also shown that Tregs are essential for establishing and maintaining transplantation tolerance. In this paper, we present a hypothesis of one H2-haplotype-matched DST-induced transplantation tolerance (in mice). The formulated hypothesis is based on a re-interpretation of data from an immunogenetic experiment published by Niimi and colleagues in 2000. It is of importance that the naïve recipient mice in this study were never immunosuppressed and were therefore fully immune competent during the course of tolerance induction. Based on the immunological status of the recipients, we suggest that one H2-haplotype-matched self-specific Tregs derived from the transfusion blood can be activated and multiply in the host by binding to antigen-presenting cells presenting allopeptides in their major histocompatibility complex (MHC) class II (MHC-II). We also suggest that the endothelial and epithelial cells within the solid organ allograft upregulate the expression of MHC-II and attract the expanded Treg population to suppress inflammation within the graft. We further suggest that this biological process, here termed MHC-II recruitment, is a vital survival mechanism for organs (or the organism in general) when attacked by an immune system.
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Affiliation(s)
| | - Henrik Georg Bohr
- Department of Chemistry, The Technical University of Denmark , Lyngby , Denmark
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38
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Arciero JC, Maturo A, Arun A, Oh BC, Brandacher G, Raimondi G. Combining Theoretical and Experimental Techniques to Study Murine Heart Transplant Rejection. Front Immunol 2016; 7:448. [PMID: 27872621 PMCID: PMC5097940 DOI: 10.3389/fimmu.2016.00448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 10/10/2016] [Indexed: 12/21/2022] Open
Abstract
The quality of life of organ transplant recipients is compromised by complications associated with life-long immunosuppression, such as hypertension, diabetes, opportunistic infections, and cancer. Moreover, the absence of established tolerance to the transplanted tissues causes limited long-term graft survival rates. Thus, there is a great medical need to understand the complex immune system interactions that lead to transplant rejection so that novel and effective strategies of intervention that redirect the system toward transplant acceptance (while preserving overall immune competence) can be identified. This study implements a systems biology approach in which an experimentally based mathematical model is used to predict how alterations in the immune response influence the rejection of mouse heart transplants. Five stages of conventional mouse heart transplantation are modeled using a system of 13 ordinary differential equations that tracks populations of both innate and adaptive immunity as well as proxies for pro- and anti-inflammatory factors within the graft and a representative draining lymph node. The model correctly reproduces known experimental outcomes, such as indefinite survival of the graft in the absence of CD4+ T cells and quick rejection in the absence of CD8+ T cells. The model predicts that decreasing the translocation rate of effector cells from the lymph node to the graft delays transplant rejection. Increasing the starting number of quiescent regulatory T cells in the model yields a significant but somewhat limited protective effect on graft survival. Surprisingly, the model shows that a delayed appearance of alloreactive T cells has an impact on graft survival that does not correlate linearly with the time delay. This computational model represents one of the first comprehensive approaches toward simulating the many interacting components of the immune system. Despite some limitations, the model provides important suggestions of experimental investigations that could improve the understanding of rejection. Overall, the systems biology approach used here is a first step in predicting treatments and interventions that can induce transplant tolerance while preserving the capacity of the immune system to protect against legitimate pathogens.
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Affiliation(s)
- Julia C Arciero
- Department of Mathematical Sciences, Indiana University-Purdue University Indianapolis , Indianapolis, IN , USA
| | - Andrew Maturo
- Department of Mathematical Sciences, Indiana University-Purdue University Indianapolis , Indianapolis, IN , USA
| | - Anirudh Arun
- Vascularized and Composite Allotransplantation Laboratory, Department of Plastic and Reconstructive Surgery, Johns Hopkins School of Medicine , Baltimore, MD , USA
| | - Byoung Chol Oh
- Vascularized and Composite Allotransplantation Laboratory, Department of Plastic and Reconstructive Surgery, Johns Hopkins School of Medicine , Baltimore, MD , USA
| | - Gerald Brandacher
- Vascularized and Composite Allotransplantation Laboratory, Department of Plastic and Reconstructive Surgery, Johns Hopkins School of Medicine , Baltimore, MD , USA
| | - Giorgio Raimondi
- Vascularized and Composite Allotransplantation Laboratory, Department of Plastic and Reconstructive Surgery, Johns Hopkins School of Medicine , Baltimore, MD , USA
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39
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Mackroth MS, Abel A, Steeg C, Schulze zur Wiesch J, Jacobs T. Acute Malaria Induces PD1+CTLA4+ Effector T Cells with Cell-Extrinsic Suppressor Function. PLoS Pathog 2016; 12:e1005909. [PMID: 27802341 PMCID: PMC5089727 DOI: 10.1371/journal.ppat.1005909] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 09/01/2016] [Indexed: 12/15/2022] Open
Abstract
In acute Plasmodium falciparum (P. falciparum) malaria, the pro- and anti-inflammatory immune pathways must be delicately balanced so that the parasitemia is controlled without inducing immunopathology. An important mechanism to fine-tune T cell responses in the periphery is the induction of coinhibitory receptors such as CTLA4 and PD1. However, their role in acute infections such as P. falciparum malaria remains poorly understood. To test whether coinhibitory receptors modulate CD4+ T cell functions in malaria, blood samples were obtained from patients with acute P. falciparum malaria treated in Germany. Flow cytometric analysis showed a more frequent expression of CTLA4 and PD1 on CD4+ T cells of malaria patients than of healthy control subjects. In vitro stimulation with P. falciparum-infected red blood cells revealed a distinct population of PD1+CTLA4+CD4+ T cells that simultaneously produced IFNγ and IL10. This antigen-specific cytokine production was enhanced by blocking PD1/PDL1 and CTLA4. PD1+CTLA4+CD4+ T cells were further isolated based on surface expression of PD1 and their inhibitory function investigated in-vitro. Isolated PD1+CTLA4+CD4+ T cells suppressed the proliferation of the total CD4+ population in response to anti-CD3/28 and plasmodial antigens in a cell-extrinsic manner. The response to other specific antigens was not suppressed. Thus, acute P. falciparum malaria induces P. falciparum-specific PD1+CTLA4+CD4+ Teffector cells that coproduce IFNγ and IL10, and inhibit other CD4+ T cells. Transient induction of regulatory Teffector cells may be an important mechanism that controls T cell responses and might prevent severe inflammation in patients with malaria and potentially other acute infections.
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Affiliation(s)
- Maria Sophia Mackroth
- Department of Medicine I, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
- Department of Immunology, Bernhard-Nocht-Institute of Tropical Medicine, Hamburg, Germany
| | - Annemieke Abel
- Department of Immunology, Bernhard-Nocht-Institute of Tropical Medicine, Hamburg, Germany
| | - Christiane Steeg
- Department of Immunology, Bernhard-Nocht-Institute of Tropical Medicine, Hamburg, Germany
| | | | - Thomas Jacobs
- Department of Immunology, Bernhard-Nocht-Institute of Tropical Medicine, Hamburg, Germany
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40
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41
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Dwivedi M, Kumar P, Laddha NC, Kemp EH. Induction of regulatory T cells: A role for probiotics and prebiotics to suppress autoimmunity. Autoimmun Rev 2016; 15:379-92. [PMID: 26774011 DOI: 10.1016/j.autrev.2016.01.002] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 01/03/2016] [Indexed: 02/07/2023]
Abstract
Regulatory T cells (Tregs) are comprised of a heterogeneous population of cells that play a vital role in suppressing inflammation and maintaining immune tolerance. Given the crucial role of Tregs in maintaining immune homeostasis, it is probably not surprising that many microbial species and their metabolites have the potential to induce Tregs. There is now great interest in the therapeutic potential of probiotics and prebiotics based strategies for a range of autoimmune disorders. This review will summarise recent findings concerning the role of probiotics and prebiotics in induction of Tregs to ameliorate the autoimmune conditions. In addition, the article is focused to explain the different mechanisms of Treg induction and function by these probiotics and prebiotics, based on the available studies till date. The article further proposes that induction of Tregs by probiotics and prebiotics could lead to the development of new therapeutic approach towards curbing the autoimmune response and as an alternative to detrimental immunosuppressive drugs.
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Affiliation(s)
- Mitesh Dwivedi
- C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Tarsadi, Surat, Gujarat -394350, India
| | - Prasant Kumar
- C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Tarsadi, Surat, Gujarat -394350, India
| | - Naresh C Laddha
- Department of Molecular Biology, Unipath Specialty Laboratory Ltd., Ahmedabad, Gujarat, India
| | - E Helen Kemp
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, United Kingdom.
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The influence of commensal bacteria on infection with enteric viruses. Nat Rev Microbiol 2016; 14:197-204. [PMID: 26853118 DOI: 10.1038/nrmicro.2015.25] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The intestinal microbiota exerts a marked influence in the mammalian host, both during homeostasis and disease. However, until very recently, there has been relatively little focus on the potential effect of commensal microorganisms on viral infection of the intestinal tract. In this Progress article, I review the recent advances that elucidate the mechanisms by which enteric viruses use commensal bacteria to enhance viral infectivity. These mechanisms segregate into two general categories: the direct facilitation of viral infection, including bacterial stabilization of viral particles and the facilitation of viral attachment to host target cells; and the indirect skewing of the antiviral immune response in a manner that promotes viral infection. Finally, I discuss the implications of these interactions for the development of vaccines and novel therapeutic approaches.
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Hu J, He H, Yang Z, Zhu G, Kang L, Jing X, Lu H, Song W, Bai B, Tang H. Programmed Death Ligand-1 on Microglia Regulates Th1 Differentiation via Nitric Oxide in Experimental Autoimmune Encephalomyelitis. Neurosci Bull 2016; 32:70-82. [PMID: 26769487 DOI: 10.1007/s12264-015-0010-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Accepted: 10/06/2015] [Indexed: 12/20/2022] Open
Abstract
Microglia are considered to be potential antigen-presenting cells and have the ability to present antigen under pathological conditions. Nevertheless, whether and how microglia are involved in immune regulation are largely unknown. Here, we investigated the suppressive activity of microglia during experimental autoimmune encephalomyelitis (EAE) induced by myelin oligodendrocyte glycoprotein, with the goal of understanding their role in regulating the T cell reaction. Using flow cytometric analysis, we found that microglia were characterized by increased cell number and up-regulated programmed death ligand-1 (PD-L1) at the peak phase of EAE. Meanwhile, both the CD4(+) T cells and microglia that infiltrated the central nervous system expressed higher levels of PD1, the receptor for PD-L1, accompanied by a decline of Th1 cells. In an ex vivo co-culture system, microglia from EAE mice inhibited the proliferation of antigen-specific CD4(+) T cells and the differentiation of Th1 cells, and this was significantly inhibited by PD-L1 blockade. Further, microglia suppressed Th1 cells via nitric oxide (NO), the production of which was dependent on PD-L1. Thus, these data suggest a scenario in which microglia are involved in the regulation of EAE by suppressing Th1-cell differentiation via the PD-L1-NO pathway.
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Affiliation(s)
- Jingxia Hu
- College of Life Science, Shandong Agricultural University, Taian, 271018, China.,Institute of Immunology, Taishan Medical University, Taian, 271000, China
| | - Hao He
- Institute of Immunology, Taishan Medical University, Taian, 271000, China
| | - Zhengang Yang
- Department of ENT, Center Hospital of Taian City, Taian, 271000, China
| | - Guangming Zhu
- Institute of Immunology, Taishan Medical University, Taian, 271000, China
| | - Li Kang
- Institute of Immunology, Taishan Medical University, Taian, 271000, China
| | - Xiuli Jing
- Institute of Immunology, Taishan Medical University, Taian, 271000, China
| | - Hai Lu
- Department of Neurobiology, Jining Medical University, Jining, 272067, China
| | - Wengang Song
- Institute of Immunology, Taishan Medical University, Taian, 271000, China
| | - Bo Bai
- Department of Neurobiology, Jining Medical University, Jining, 272067, China.
| | - Hua Tang
- Institute of Immunology, Taishan Medical University, Taian, 271000, China.
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Dumont CM, Park J, Shea LD. Controlled release strategies for modulating immune responses to promote tissue regeneration. J Control Release 2015; 219:155-166. [PMID: 26264833 DOI: 10.1016/j.jconrel.2015.08.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 08/04/2015] [Accepted: 08/05/2015] [Indexed: 01/06/2023]
Abstract
Advances in the field of tissue engineering have enhanced the potential of regenerative medicine, yet the efficacy of these strategies remains incomplete, and is limited by the innate and adaptive immune responses. The immune response associated with injury or disease combined with that mounted to biomaterials, transplanted cells, proteins, and gene therapies vectors can contribute to the inability to fully restore tissue function. Blocking immune responses such as with anti-inflammatory or immunosuppressive agents are either ineffective, as the immune response contributes significantly to regeneration, or have significant side effects. This review describes targeted strategies to modulate the immune response in order to limit tissue damage following injury, promote an anti-inflammatory environment that leads to regeneration, and induce antigen (Ag)-specific tolerance that can target degenerative diseases that destroy tissues and promote engraftment of transplanted cells. Focusing on targeted immuno-modulation, we describe local delivery techniques to sites of inflammation as well as systemic approaches that preferentially target subsets of immune populations.
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Affiliation(s)
- Courtney M Dumont
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48105, USA
| | - Jonghyuck Park
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48105, USA
| | - Lonnie D Shea
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48105, USA; Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48105, USA.
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Yan W, Wang L, Jiang J, Xu W, Gong Z, Duan Q, Li C, Song H, Che L, Shen Y, Zhou L. Differential expression of T cell-related genes in AMI and SA stages of coronary artery disease. Int J Clin Exp Med 2015; 8:10875-84. [PMID: 26379881 PMCID: PMC4565264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Accepted: 06/26/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To identify differentially expressed T cells-related genes in peripheral blood mononuclear cells and compare their differences in T cell activation and subset functions in different stages of coronary atherosclerosis disease (CAD). METHODS 20 patients with acute myocardial infarction patients (AMI), 20 patients with stable angina pectoris (SA) and 20 healthy volunteers were recruited into the study. Whole human genome microarray analysis was used to detect the expression of T cell related genes among three groups. RESULTS mRNA expression of 68 genes involved in T cell was detected. 1) Antigen recognition: in the AMI patients 12 genes were down-regulated and 9 were significantly down-regulated among all 13 genes, compared with those of the SA and the control group, respectively. 2) Co-stimulators and regulators of T cell activation: among 16 genes in the AMI patients, 15 genes were lower and 8 were significantly lower than the other two groups. 3) T cell subsets, CTL: all 11 genes in the AMI patients were down-regulated, particularly GZMM and CASP8 were significantly down-regulated compared with the SA patients and controls. Th1/Th2: in the AMI patients, gene expressions including IL1 and IL18 were significantly higher, whereas GATA3 mRNA was significantly lower than those in other two groups. Th17/Treg: in the AMI group, RORC and CCR6 mRNAs were significantly down-regulated compared with the control group, while CD25 and CD127 expressions were significantly lower than SA group. There was no difference in T cell related genes between the SA patients and the controls. CONCLUSIONS In the AMI patients, the mRNA expression of T cell antigen recognition, activation and subset functions was imbalanced or decreased, indicating the dysfunction of cellular immunity in patients with AMI. Then improving T cell mediated cellular immunity may be considered as a potential target for medical interventions in the patients with AMI.
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Affiliation(s)
- Wenwen Yan
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Lemin Wang
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Jinfa Jiang
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Wenjun Xu
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Zhu Gong
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Qianglin Duan
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Chuanrong Li
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Haoming Song
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Lin Che
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Yuqin Shen
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Lin Zhou
- Department of Cardiology, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
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Liu S, Luo J, Liu Y, Tang S, Chen C, Cai H, Yu M, Zhang Y. CD4+Foxp3+regulatory T-cell number increases in the gastric tissue of C57BL/6 mice infected withHelicobacter pylori. APMIS 2015; 123:571-9. [DOI: 10.1111/apm.12388] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 02/20/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Sheng Liu
- Institute of Pathogenic Biology; University of South China; Hengyang Hunan China
| | - Jingjing Luo
- Institute of Pathogenic Biology; University of South China; Hengyang Hunan China
| | - Yapu Liu
- Institute of Pathogenic Biology; University of South China; Hengyang Hunan China
| | - Shuangyang Tang
- Institute of Pathogenic Biology; University of South China; Hengyang Hunan China
| | - Chaoqun Chen
- Institute of Pathogenic Biology; University of South China; Hengyang Hunan China
| | - Hengling Cai
- Institute of Pathogenic Biology; University of South China; Hengyang Hunan China
| | - Minjun Yu
- Institute of Pathogenic Biology; University of South China; Hengyang Hunan China
| | - Yan Zhang
- Institute of Pathogenic Biology; University of South China; Hengyang Hunan China
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Huang H, Xu R, Lin F, Bao C, Wang S, Ji C, Li K, Jin L, Mu J, Wang Y, Li L, Sun L, Xu B, Zhang Z, Wang FS. High circulating CD39+ regulatory T cells predict poor survival for sepsis patients. Int J Infect Dis 2015; 30:57-63. [DOI: 10.1016/j.ijid.2014.11.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 11/04/2014] [Accepted: 11/05/2014] [Indexed: 12/11/2022] Open
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Abstract
Hemophilia is an X-linked inherited bleeding disorder consisting of two classifications, hemophilia A and hemophilia B, depending on the underlying mutation. Although the disease is currently treatable with intravenous delivery of replacement recombinant clotting factor, this approach represents a significant cost both monetarily and in terms of quality of life. Gene therapy is an attractive alternative approach to the treatment of hemophilia that would ideally provide life-long correction of clotting activity with a single injection. In this review, we will discuss the multitude of approaches that have been explored for the treatment of both hemophilia A and B, including both in vivo and ex vivo approaches with viral and nonviral delivery vectors.
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Affiliation(s)
- Geoffrey L Rogers
- University of Florida, Department of Pediatrics, Division of Cellular and Molecular Therapy, Gainesville, FL 32610
| | - Roland W Herzog
- University of Florida, Department of Pediatrics, Division of Cellular and Molecular Therapy, Gainesville, FL 32610
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Affiliation(s)
- Ramit Mehr
- Computational Immunology Lab, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University , Ramat-Gan , Israel
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