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Shan L, Matloubi M, Okwor I, Kung S, Almiski MS, Basu S, Halayko A, Koussih L, Gounni AS. CD11c+ dendritic cells PlexinD1 deficiency exacerbates airway hyperresponsiveness, IgE and mucus production in a mouse model of allergic asthma. PLoS One 2024; 19:e0309868. [PMID: 39213301 PMCID: PMC11364237 DOI: 10.1371/journal.pone.0309868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 08/12/2024] [Indexed: 09/04/2024] Open
Abstract
Dendritic cells (DCs) are pivotal in regulating allergic asthma. Our research has shown that the absence of Sema3E worsens asthma symptoms in acute and chronic asthma models. However, the specific role of PlexinD1 in these processes, particularly in DCs, remains unclear. This study investigates the role of PlexinD1 in CD11c+ DCs using a house dust mite (HDM) model of asthma. We generated CD11c+ DC-specific PlexinD1 knockout (CD11cPLXND1 KO) mice and subjected them, alongside wild-type controls (PLXND1fl/fl), to an HDM allergen protocol. Airway hyperresponsiveness (AHR) was measured using FlexiVent, and immune cell populations were analyzed via flow cytometry. Cytokine levels and immunoglobulin concentrations were assessed using mesoscale and ELISA, while collagen deposition and mucus production were examined through Sirius-red and periodic acid Schiff (PAS) staining respectively. Our results indicate that CD11cPLXND1 KO mice exhibit significantly exacerbated AHR, characterized by increased airway resistance and tissue elastance. Enhanced mucus production and collagen gene expression were observed in these mice compared to wild-type counterparts. Flow cytometry revealed higher CD11c+ MHCIIhigh CD11b+ cell recruitment into the lungs, and elevated total and HDM-specific serum IgE levels in CD11cPLXND1 KO mice. Mechanistically, co-cultures of B cells with DCs from CD11cPLXND1 KO mice showed significantly increased IgE production compared to wild-type mice.These findings highlight the critical regulatory role of the plexinD1 signaling pathway in CD11c+ DCs in modulating asthma features.
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Affiliation(s)
- Lianyu Shan
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Mojdeh Matloubi
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Ifeoma Okwor
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Sam Kung
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Mohamed Sadek Almiski
- Department of Anatomy, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Sujata Basu
- Depertment of Physiology and Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Andrew Halayko
- Depertment of Physiology and Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Latifa Koussih
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Experimental Biology, Université de Saint-Boniface, Winnipeg, Manitoba
| | - Abdelilah S. Gounni
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
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Sulaiman I, Okwuofu EO, Mohtarrudin N, Lim JCW, Stanslas J. An Andrographis paniculata Burm. Nees extract standardized for three main Andrographolides prevents house dust mite-induced airway inflammation, remodeling, and hyperreactivity by regulating Th1/Th2 gene expression in mice. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117082. [PMID: 37652197 DOI: 10.1016/j.jep.2023.117082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 09/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Andrographis paniculata Burm. Nees (AP) is an herb used traditionally in Indian and Chinese traditional medicine for the treatment of various inflammatory and respiratory tract diseases. However, the anti-inflammatory potential of standardized Andrographis paniculata 50% ethanol extract (APEE50) in the murine model of asthma has not been investigated. AIM OF THE STUDY This study aimed to evaluate the protective anti-inflammatory potential and better understand the underlying mechanism of action of APEE50 in a clinically-relevant mouse asthma model. Thereafter, develop the ethanolic extract of AP as a supplement for asthma prophylaxis. MATERIALS AND METHOD APEE50 was prepared and standardized for AGP, NAG, and DDAG using a high-performance liquid chromatography system. Asthma was induced according to a 14-day house dust mite (HDM) induction protocol. The prophylactic potential of APEE50 (50 mg/kg - 200 mg/kg) was determined by assessing cardinal asthma features, which included BALF leukocyte and differential cell count, BALF cytokine assay, histology, gene expression, and airway hyperreactivity study. RESULTS APEE50 significantly inhibited HDM-induced airway eosinophilia and neutrophilia. In addition to decreased levels of IL-4, IL-5, IL-13, and eotaxin in bronchoalveolar fluid, APEE50 abrogated HDM-induced airway mucus over-secretion and airway hyper-responsiveness. Administration of APEE50 downregulated HDM-induced upregulation of the oxidative stress enzyme Duox1 (dual oxidase 1) and marginally induced Nfe2l2 (nuclear factor erythroid 2-related factor 2) gene expressions. Similarly, Th2-related (Serpinb2, Clca3a1, Il4 and Il13) and Muc5ac gene expression were significantly downregulated. CONCLUSION Prophylactic administration of APEE50 prevented the progression of HDM-induced asthmatic responses by down-regulating Th2 cytokine gene expression and oxidative stress level.
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Affiliation(s)
- Ibrahim Sulaiman
- Pharmacotherapeutic Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Emmanuel Oshiogwe Okwuofu
- Pharmacotherapeutic Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Norhafizah Mohtarrudin
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Jonathan Chee Woei Lim
- Pharmacotherapeutic Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Johnson Stanslas
- Pharmacotherapeutic Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.
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Naito M, Kumanogoh A. The role of semaphorins in allergic diseases. Allergol Int 2024; 73:31-39. [PMID: 37635021 DOI: 10.1016/j.alit.2023.08.006] [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: 03/12/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 08/29/2023] Open
Abstract
Semaphorins were originally identified as guidance molecules in neural development. However, accumulating evidence indicates that 'immune semaphorins' are critically involved in regulating immune cell activation, differentiation, mobility and migration. Semaphorins are also intimately associated with the pathogenesis of allergic diseases including asthma, allergic rhinitis, atopic dermatitis, allergic conjunctivitis, and eosinophilic chronic rhinosinusitis. Interestingly, reflecting their function in positive or negative regulation of immune cells, levels of some semaphorins are increased while others are decreased in patients with allergic diseases. This review presents the pathogenic functions of immune semaphorins in allergic inflammation and discusses the potential use of these molecules as therapeutic targets for allergic diseases.
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Affiliation(s)
- Maiko Naito
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Osaka, Japan; Department of Immunopathology, World Premier International Research Center Initiative (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
| | - Atsushi Kumanogoh
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Osaka, Japan; Department of Immunopathology, World Premier International Research Center Initiative (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan; Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Osaka, Japan; Center for Infectious Diseases for Education and Research (CiDER), Osaka University, Osaka, Japan; Japan Agency for Medical Research and Development - Core Research for Evolutional Science and Technology (AMED-CREST), Osaka University, Osaka, Japan; Center for Advanced Modalities and DDS (CAMaD), Osaka University, Osaka, Japan.
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4
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Thomas R, Yang X. Semaphorins in immune cell function, inflammatory and infectious diseases. CURRENT RESEARCH IN IMMUNOLOGY 2023; 4:100060. [PMID: 37645659 PMCID: PMC10461194 DOI: 10.1016/j.crimmu.2023.100060] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 05/08/2023] [Accepted: 05/14/2023] [Indexed: 08/31/2023] Open
Abstract
The Semaphorin family is a group of proteins studied broadly for their functions in nervous systems. They consist of eight subfamilies ubiquitously expressed in vertebrates, invertebrates, and viruses and exist in membrane-bound or secreted forms. Emerging evidence indicates the relevance of semaphorins outside the nervous system, including angiogenesis, cardiogenesis, osteoclastogenesis, tumour progression, and, more recently, the immune system. This review provides a broad overview of current knowledge on the role of semaphorins in the immune system, particularly its involvement in inflammatory and infectious diseases, including chlamydial infections.
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Affiliation(s)
- Rony Thomas
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Xi Yang
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada
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5
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Targeting the Semaphorin3E-plexinD1 complex in allergic asthma. Pharmacol Ther 2023; 242:108351. [PMID: 36706796 DOI: 10.1016/j.pharmthera.2023.108351] [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: 03/31/2022] [Revised: 01/09/2023] [Accepted: 01/19/2023] [Indexed: 01/26/2023]
Abstract
Asthma is a heterogenous airway disease characterized by airway inflammation and remodeling. It affects more than 300 million people worldwide and poses a significant burden on society. Semaphorins, discovered initially as neural guidance molecules, are ubiquitously expressed in various organs and regulate multiple signaling pathways. Interestingly, Semaphorin3E is a critical molecule in lung pathophysiology through its role in both lung development and homeostasis. Semaphorin3E binds to plexinD1, mediating regulatory effects on cell migration, proliferation, and angiogenesis. Recent in vitro and in vivo studies have demonstrated that the Semaphorin3E-plexinD1 axis is implicated in asthma, impacting inflammatory and structural cells associated with airway inflammation, tissue remodeling, and airway hyperresponsiveness. This review details the Semaphorin3E-plexinD1 axis in various aspects of asthma and highlights future directions in research including its potential role as a therapeutic target in airway allergic diseases.
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Thomas R, Wang S, Rashu R, Peng Y, Gounni AS, Yang X. Exogenous Semaphorin 3E treatment protects against chlamydial lung infection in mice. Front Immunol 2022; 13:882412. [PMID: 35983029 PMCID: PMC9379098 DOI: 10.3389/fimmu.2022.882412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Recent studies reported that semaphorins play a significant role in various settings of the immune response. In particular, Semaphorin 3E (Sema3E), a secreted semaphorin protein, is involved in cell proliferation, migration, inflammatory responses, and host defence against infections. However, the therapeutic function of Sema3E in bacterial infection has not been investigated. Our data showed that exogenous Sema3E treatment protects mice from chlamydial infection with lower bacterial burden, reduced body weight loss, and pathological lung changes. Cytokine analysis in the lung and spleen revealed that Sema3E-Fc treated mice, compared to saline-Fc treated mice, showed enhanced production of IFN-γ and IL-17 but reduced IL-4 and IL-10 production. Cellular analysis showed that Sema3E treatment leads to enhanced Th1/Th17 response but reduced Treg response in lungs following chlamydial infection. Moreover, Sema3E treatment also enhanced the recruitment of pulmonary dendritic cells, which express higher co-stimulatory but lower inhibitory surface molecules. The data demonstrate that Sema3E plays a vital role in protective immunity against chlamydial lung infection, mainly through coordinating functions of T cells and DCs.
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7
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Balhara J, Koussih L, Mohammed A, Shan L, Lamkhioued B, Gounni AS. PTX3 Deficiency Promotes Enhanced Accumulation and Function of CD11c +CD11b + DCs in a Murine Model of Allergic Inflammation. Front Immunol 2021; 12:641311. [PMID: 34305885 PMCID: PMC8299994 DOI: 10.3389/fimmu.2021.641311] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 06/21/2021] [Indexed: 11/17/2022] Open
Abstract
PTX3 is a unique member of the long pentraxins family and plays an indispensable role in regulating the immune system. We previously showed that PTX3 deletion aggravates allergic inflammation via a Th17 -dominant phenotype and enhanced CD4 T cell survival using a murine model of ovalbumin (OVA) induced allergic inflammation. In this study, we identified that upon OVA exposure, increased infiltration of CD11c+CD11b+ dendritic cells (DCs) was observed in the lungs of PTX3-/- mice compared to wild type littermate. Further analysis showed that a short-term OVA exposure led to an increased number of bone marrow common myeloid progenitors (CMP) population concomitantly with increased Ly6Chigh CCR2high monocytes and CD11c+CD11b+ DCs in the lungs. Also, pulmonary CD11c+CD11b+ DCs from OVA-exposed PTX3-/- mice exhibited enhanced expression of maturation markers, chemokines receptors CCR2, and increased OVA uptake and processing compared to wild type controls. Taken together, our data suggest that PTX3 deficiency heightened lung CD11c+CD11b+DC numbers and function, hence exacerbating airway inflammatory response.
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Affiliation(s)
- Jyoti Balhara
- Department of Immunology, Max-Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Latifa Koussih
- Department of Immunology, Max-Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,Department des Sciences Experimentales, Université de Saint-Boniface, Winnipeg, MB, Canada
| | - Ashfaque Mohammed
- Department of Immunology, Max-Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Lianyu Shan
- Department of Immunology, Max-Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Bouchaib Lamkhioued
- Laboratoire d'Immunologie et de Biotechnologies, EA7509-IRMAIC, Pôle-Santé, Université de Reims Champagne-Ardenne, Reims, France
| | - Abdelilah S Gounni
- Department of Immunology, Max-Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
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8
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Movassagh H, Shan L, Koussih L, Alamri A, Ariaee N, Kung SKP, Gounni AS. Semaphorin 3E deficiency dysregulates dendritic cell functions: In vitro and in vivo evidence. PLoS One 2021; 16:e0252868. [PMID: 34185781 PMCID: PMC8241044 DOI: 10.1371/journal.pone.0252868] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/24/2021] [Indexed: 11/19/2022] Open
Abstract
Regulation of dendritic cell functions is a complex process in which several mediators play diverse roles as a network in a context-dependent manner. The precise mechanisms underlying dendritic cell functions have remained to be addressed. Semaphorins play crucial roles in regulation of various cell functions. We previously revealed that Semaphorin 3E (Sema3E) contributes to regulation of allergen-induced airway pathology partly mediated by controlling recruitment of conventional dendritic cell subsets in vivo, though the underlying mechanism remained elusive. In this study, we investigate the potential regulatory role of Sema3E in dendritic cells. We demonstrated that bone marrow-derived dendritic cells differentiated from Sema3e-/- progenitors have an enhanced migration capacity both at the baseline and in response to CCL21. The enhanced migration ability of Sema3E dendritic cells was associated with an overexpression of the chemokine receptor (CCR7), elevated Rac1 GTPase activity and F-actin polymerization. Using a mouse model of allergic airway sensitization, we observed that genetic deletion of Sema3E leads to a time dependent upregulation of CCR7 on CD11b+ conventional dendritic cells in the lungs and mediastinal lymph nodes. Furthermore, aeroallergen sensitization of Sema3e-/- mice lead to an enhanced expression of PD-L2 and IRF-4 as well as enhanced allergen uptake in pulmonary CD11b+ DC, compared to wild type littermates. Collectively, these data suggest that Sema3E implicates in regulation of dendritic cell functions which could be considered a basis for novel immunotherapeutic strategies for the diseases associated with defective dendritic cells in the future.
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Affiliation(s)
- Hesam Movassagh
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Lianyu Shan
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Latifa Koussih
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Department des Sciences Experimentales, Universite de Saint-Boniface, Winnipeg, Manitoba, Canada
| | - Abdulaziz Alamri
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Nazila Ariaee
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Sam K. P. Kung
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Abdelilah S. Gounni
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- * E-mail:
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9
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Semaphorin3E/plexinD1 Axis in Asthma: What We Know So Far! ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1304:205-213. [PMID: 34019271 DOI: 10.1007/978-3-030-68748-9_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Semaphorin3E belongs to the large family of semaphorin proteins. Semaphorin3E was initially identified as axon guidance cues in the neural system. It is universally expressed beyond the nervous system and contributes to regulating essential cell functions such as cell migration, proliferation, and adhesion. Binding of semaphorin3E to its receptor, plexinD1, triggers diverse signaling pathways involved in the pathogenesis of various diseases from cancer to autoimmune and allergic disorders. Here, we highlight the novel findings on the role of semaphorin3E in airway biology. In particular, we highlight our recent findings on the function and potential mechanisms by which semaphorin3E and its receptor, plexinD1, impact airway inflammation, airway hyperresponsiveness, and remodeling in the context of asthma.
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10
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Kanth SM, Gairhe S, Torabi-Parizi P. The Role of Semaphorins and Their Receptors in Innate Immune Responses and Clinical Diseases of Acute Inflammation. Front Immunol 2021; 12:672441. [PMID: 34012455 PMCID: PMC8126651 DOI: 10.3389/fimmu.2021.672441] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 04/20/2021] [Indexed: 12/16/2022] Open
Abstract
Semaphorins are a group of proteins that have been studied extensively for their critical function in neuronal development. They have been shown to regulate airway development, tumorigenesis, autoimmune diseases, and the adaptive immune response. Notably, emerging literature describes the role of immunoregulatory semaphorins and their receptors, plexins and neuropilins, as modulators of innate immunity and diseases defined by acute injury to the kidneys, abdomen, heart and lungs. In this review we discuss the pathogenic functions of semaphorins in clinical conditions of acute inflammation, including sepsis and acute lung injury, with a focus on regulation of the innate immune response as well as potential future therapeutic targeting.
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Affiliation(s)
- Shreya M Kanth
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, MD, United States
| | - Salina Gairhe
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, MD, United States
| | - Parizad Torabi-Parizi
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, MD, United States
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11
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Thomas R, Wang S, Shekhar S, Peng Y, Qiao S, Zhang C, Shan L, Movassagh H, Gounni AS, Yang J, Yang X. Semaphorin 3E Protects against Chlamydial Infection by Modulating Dendritic Cell Functions. THE JOURNAL OF IMMUNOLOGY 2021; 206:1251-1265. [PMID: 33504621 DOI: 10.4049/jimmunol.2001013] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 01/01/2021] [Indexed: 12/27/2022]
Abstract
Recent studies have identified semaphorin 3E (Sema3E) as a novel mediator of immune responses. However, its function in immunity to infection has yet to be investigated. Using a mouse model of chlamydial lung infection, we show that Sema3E plays a significant role in the host immune response to the infection. We found that Sema3E is induced in the lung after chlamydial infection, and Sema3E deficiency has a detrimental impact on disease course, dendritic cell (DC) function, and T cell responses. Specifically, we found that Sema3E knockout (KO) mice exhibited higher bacterial burden, severe body weight loss, and pathological changes after Chlamydia muridarum lung infection compared with wild-type (WT) mice. The severity of disease in Sema3E KO mice was correlated with reduced Th1/Th17 cytokine responses, increased Th2 response, altered Ab response, and a higher number of regulatory CD4 T cells. Moreover, DCs isolated from Sema3E KO mice showed lower surface expression of costimulatory molecules and production of IL-12, but higher expression of PD-L1, PD-L2, and IL-10 production. Functional DC-T cell coculture studies revealed that DCs from infected Sema3E KO mice failed to induce Th1 and Th17 cell responses compared with DCs from infected WT mice. Upon adoptive transfer, mice receiving DCs from Sema3E KO mice, unlike those receiving DCs from WT mice, were not protected against challenge infection. In conclusion, our data evidenced that Sema3E acts as a critical factor for protective immunity against intracellular bacterial infection by modulating DC functions and T cell subsets.
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Affiliation(s)
- Rony Thomas
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Shuhe Wang
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Sudhanshu Shekhar
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Ying Peng
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Sai Qiao
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Chunyan Zhang
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Lianyu Shan
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Hesam Movassagh
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Abdelilah S Gounni
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Jie Yang
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Xi Yang
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
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12
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Noueihed B, Rivera JC, Dabouz R, Abram P, Omri S, Lahaie I, Chemtob S. Mesenchymal Stromal Cells Promote Retinal Vascular Repair by Modulating Sema3E and IL-17A in a Model of Ischemic Retinopathy. Front Cell Dev Biol 2021; 9:630645. [PMID: 33553187 PMCID: PMC7859341 DOI: 10.3389/fcell.2021.630645] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/04/2021] [Indexed: 12/15/2022] Open
Abstract
Ischemic retinopathies (IRs), such as retinopathy of prematurity and diabetic retinopathy, are characterized by an initial phase of microvascular degeneration that results in retinal ischemia, followed by exaggerated pathologic neovascularization (NV). Mesenchymal stromal cells (MSCs) have potent pro-angiogenic and anti-inflammatory properties associated with tissue repair and regeneration, and in this regard exert protection to neurons in ischemic and degenerative conditions; however, the exact mechanisms underlying these functions remain largely unknown. Class III Semaphorins (A–G) are particularly implicated in regulating neural blood supply (as well as neurogenesis) by suppressing angiogenesis and affecting myeloid cell function; this is the case for distinct neuropillin-activating Sema3A as well as PlexinD1-activating Sema3E; but during IR the former Sema3A increases while Sema3E decreases. We investigated whether retinal vascular repair actions of MSCs are exerted by normalizing Semaphorin and downstream cytokines in IR. Intravitreal administration of MSCs or their secretome (MSCs-conditioned media [MSCs-CM]) significantly curtailed vasoobliteration as well as aberrant preretinal NV in a model of oxygen-induced retinopathy (OIR). The vascular repair effects of MSCs-CM in the ischemic retina were associated with restored levels of Sema3E. Vascular benefits of MSCs-CM were reversed by anti-Sema3E; while intravitreal injection of anti-angiogenic recombinant Sema3E (rSema3E) in OIR-subjected mice reproduced effects of MSCs-CM by inhibiting as expected preretinal NV but also by decreasing vasoobliteration. To explain these opposing vascular effects of Sema3E we found in OIR high retinal levels, respectively, of the pro- and anti-angiogenic IL-17A and Sema3A-regulating IL-1β; IL-17A positively affected expression of IL-1β. rSema3E decreased concentrations of these myeloid cell-derived pro-inflammatory cytokines in vitro and in vivo. Importantly, IL-17A suppression by MSCs-CM was abrogated by anti-Sema3E neutralizing antibody. Collectively, our findings provide novel evidence by which MSCs inhibit aberrant NV and diminish vasoobliteration (promoting revascularization) in retinopathy by restoring (at least in part) neuronal Sema3E levels that reduce pathological levels of IL-17A (and in turn other proinflammatory factors) in myeloid cells. The ability of MSCs to generate a microenvironment permissive for vascular regeneration by controlling the production of neuronal factors involved in immunomodulatory activities is a promising opportunity for stem cell therapy in ocular degenerative diseases.
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Affiliation(s)
- Baraa Noueihed
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC, Canada.,Department of Pharmacology and Therapeutics, McGill University, Montréal, QC, Canada
| | - José Carlos Rivera
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC, Canada.,Departments of Pediatrics, Ophthalmology and Pharmacology, Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC, Canada
| | - Rabah Dabouz
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC, Canada
| | - Pénélope Abram
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC, Canada
| | - Samy Omri
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC, Canada
| | - Isabelle Lahaie
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC, Canada
| | - Sylvain Chemtob
- Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, University of Montréal, Montréal, QC, Canada.,Department of Pharmacology and Therapeutics, McGill University, Montréal, QC, Canada.,Departments of Pediatrics, Ophthalmology and Pharmacology, Centre Hospitalier Universitaire Sainte-Justine Research Center, Montréal, QC, Canada
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13
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Mahood T, Pascoe CD, Karakach TK, Jha A, Basu S, Ezzati P, Spicer V, Mookherjee N, Halayko AJ. Integrating Proteomes for Lung Tissues and Lavage Reveals Pathways That Link Responses in Allergen-Challenged Mice. ACS OMEGA 2021; 6:1171-1189. [PMID: 33490776 PMCID: PMC7818314 DOI: 10.1021/acsomega.0c04269] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/04/2020] [Indexed: 06/12/2023]
Abstract
To capture interplay between biological pathways, we analyzed the proteome from matched lung tissues and bronchoalveolar lavage fluid (BALF) of individual allergen-naïve and house dust mite (HDM)-challenged BALB/c mice, a model of allergic asthma. Unbiased label-free liquid chromatography with tandem mass spectrometry (LC-MS/MS) analysis quantified 2675 proteins from tissues and BALF of allergen-naïve and HDM-exposed mice. In comparing the four datasets, we found significantly greater diversity in proteins between lung tissues and BALF than in the changes induced by HDM challenge. The biological pathways enriched after allergen exposure were compartment-dependent. Lung tissues featured innate immune responses and oxidative stress, while BALF most strongly revealed changes in metabolism. We combined lung tissues and BALF proteomes, which principally highlighted oxidation reduction (redox) pathways, a finding influenced chiefly by the lung tissue dataset. Integrating lung and BALF proteomes also uncovered new proteins and biological pathways that may mediate lung tissue and BALF interactions after allergen challenge, for example, B-cell receptor signaling. We demonstrate that enhanced insight is fostered when different biological compartments from the lung are investigated in parallel. Integration of proteomes from lung tissues and BALF compartments reveals new information about protein networks in response to environmental challenge and interaction between intracellular and extracellular processes.
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Affiliation(s)
- Thomas
H. Mahood
- Department
of Physiology & Pathophysiology, University
of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
- DEVOTION
Network, Winnipeg, Manitoba R3E 3P4, Canada
- Biology
of Breathing Group, Children’s Hospital
Research Institute of Manitoba, Winnipeg, Manitoba R3E 3P4, Canada
- Canadian
Respiratory Research Network, Ottawa, Ontario K2E 7V7, Canada
| | - Christopher D. Pascoe
- Department
of Physiology & Pathophysiology, University
of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
- DEVOTION
Network, Winnipeg, Manitoba R3E 3P4, Canada
- Biology
of Breathing Group, Children’s Hospital
Research Institute of Manitoba, Winnipeg, Manitoba R3E 3P4, Canada
- Canadian
Respiratory Research Network, Ottawa, Ontario K2E 7V7, Canada
| | - Tobias K. Karakach
- Bioinformatics
Core Laboratory, Children’s Hospital
Research Institute of Manitoba, Winnipeg, Manitoba R3E
3P4, Canada
| | - Aruni Jha
- Department
of Physiology & Pathophysiology, University
of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
- DEVOTION
Network, Winnipeg, Manitoba R3E 3P4, Canada
- Biology
of Breathing Group, Children’s Hospital
Research Institute of Manitoba, Winnipeg, Manitoba R3E 3P4, Canada
- Canadian
Respiratory Research Network, Ottawa, Ontario K2E 7V7, Canada
| | - Sujata Basu
- Department
of Physiology & Pathophysiology, University
of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
- DEVOTION
Network, Winnipeg, Manitoba R3E 3P4, Canada
- Biology
of Breathing Group, Children’s Hospital
Research Institute of Manitoba, Winnipeg, Manitoba R3E 3P4, Canada
- Canadian
Respiratory Research Network, Ottawa, Ontario K2E 7V7, Canada
| | - Peyman Ezzati
- Manitoba
Centre for Proteomics and Systems Biology, Department of Internal
Medicine, University of Manitoba, Winnipeg, Manitoba R3E 3P4, Canada
| | - Victor Spicer
- Manitoba
Centre for Proteomics and Systems Biology, Department of Internal
Medicine, University of Manitoba, Winnipeg, Manitoba R3E 3P4, Canada
| | - Neeloffer Mookherjee
- DEVOTION
Network, Winnipeg, Manitoba R3E 3P4, Canada
- Biology
of Breathing Group, Children’s Hospital
Research Institute of Manitoba, Winnipeg, Manitoba R3E 3P4, Canada
- Manitoba
Centre for Proteomics and Systems Biology, Department of Internal
Medicine, University of Manitoba, Winnipeg, Manitoba R3E 3P4, Canada
- Department
of Immunology, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
- Canadian
Respiratory Research Network, Ottawa, Ontario K2E 7V7, Canada
| | - Andrew J. Halayko
- Department
of Physiology & Pathophysiology, University
of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
- DEVOTION
Network, Winnipeg, Manitoba R3E 3P4, Canada
- Biology
of Breathing Group, Children’s Hospital
Research Institute of Manitoba, Winnipeg, Manitoba R3E 3P4, Canada
- Canadian
Respiratory Research Network, Ottawa, Ontario K2E 7V7, Canada
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14
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Ikeogu NM, Edechi CA, Akaluka GN, Feiz-Barazandeh A, Zayats RR, Salako ES, Onwah SS, Onyilagha C, Jia P, Mou Z, Shan L, Murooka TT, Gounni AS, Uzonna JE. Semaphorin 3E Promotes Susceptibility to Leishmania major Infection in Mice by Suppressing CD4 + Th1 Cell Response. THE JOURNAL OF IMMUNOLOGY 2020; 206:588-598. [PMID: 33443083 DOI: 10.4049/jimmunol.2000516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 11/17/2020] [Indexed: 11/19/2022]
Abstract
Protective immunity to cutaneous leishmaniasis is mediated by IFN-γ-secreting CD4+ Th1 cells. IFN-γ binds to its receptor on Leishmania-infected macrophages, resulting in their activation, production of NO, and subsequent destruction of parasites. This study investigated the role of Semaphorin 3E (Sema3E) in host immunity to Leishmania major infection in mice. We observed a significant increase in Sema3E expression at the infection site at different timepoints following L. major infection. Sema3E-deficient (Sema3E knockout [KO]) mice were highly resistant to L. major infection, as evidenced by significantly (p < 0.05-0.01) reduced lesion sizes and lower parasite burdens at different times postinfection when compared with their infected wild-type counterpart mice. The enhanced resistance of Sema3E KO mice was associated with significantly (p < 0.05) increased IFN-γ production by CD4+ T cells. CD11c+ cells from Sema3E KO mice displayed increased expression of costimulatory molecules and IL-12p40 production following L. major infection and were more efficient at inducing the differentiation of Leishmania-specific CD4+ T cells to Th1 cells than their wild-type counterpart cells. Furthermore, purified CD4+ T cells from Sema3E KO mice showed increased propensity to differentiate into Th1 cells in vitro, and this was significantly inhibited by the addition of recombinant Sema3E in vitro. These findings collectively show that Sema3E is a negative regulator of protective CD4+ Th1 immunity in mice infected with L. major and suggest that its neutralization may be a potential therapeutic option for treating individuals suffering from cutaneous leishmaniasis.
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Affiliation(s)
- Nnamdi M Ikeogu
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Chidalu A Edechi
- Department of Pathology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 3P5, Canada; and
| | - Gloria N Akaluka
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Aida Feiz-Barazandeh
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Romaniya R Zayats
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Enitan S Salako
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Somtochukwu S Onwah
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Chukuwunonso Onyilagha
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Manitoba R3E 3M4, Canada
| | - Ping Jia
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Zhirong Mou
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Lianyu Shan
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Thomas T Murooka
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Abdelilah S Gounni
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Jude E Uzonna
- Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada;
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15
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Fard D, Tamagnone L. Semaphorins in health and disease. Cytokine Growth Factor Rev 2020; 57:55-63. [PMID: 32900601 DOI: 10.1016/j.cytogfr.2020.05.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 05/12/2020] [Indexed: 11/18/2022]
Abstract
Cell-cell communication is pivotal to guide embryo development, as well as to maintain adult tissues homeostasis and control immune response. Among extracellular factors responsible for this function, are the Semaphorins, a broad family of around 20 different molecular cues conserved in evolution and widely expressed in all tissues. The signaling cascades initiated by semaphorins depend on a family of conserved receptors, called Plexins, and on several additional molecules found in the receptor complexes. Moreover, multiple intracellular pathways have been described to act downstream of semaphorins, highlighting significant diversity in the signaling cascades controlled by this family. Notably, semaphorin expression is altered in many human diseases, such as immunopathologies, neurodegenerative diseases and cancer. This underscores the importance of semaphorins as regulatory factors in the tissue microenvironment and has prompted growing interest for assessing their potential relevance in medicine. This review article surveys the main contexts in which semaphorins have been found to regulate developing and healthy adult tissues, and the signaling cascades implicated in these functions. Vis a vis, we will highlight the main pathological processes in which semaphorins are thought to have a role thereof.
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Affiliation(s)
- Damon Fard
- University of Torino School of Medicine, Torino, Italy
| | - Luca Tamagnone
- Università Cattolica del Sacro Cuore, Rome, Italy; Fondazione Policlinico Universitario "A. Gemelli", IRCCS, Rome, Italy.
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16
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Immune semaphorins: Crucial regulatory signals and novel therapeutic targets in asthma and allergic diseases. Eur J Pharmacol 2020; 881:173209. [PMID: 32454117 DOI: 10.1016/j.ejphar.2020.173209] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 11/20/2022]
Abstract
Asthma and allergic diseases are a group of chronic inflammatory disorders that arise as a result of excessive responses of the immune system against intrinsically harmless environmental substances. It is well known that substantial joint characteristics exist between the immune and nervous systems. The semaphorins (Semas) were initially characterized as axon-guidance molecules that play a crucial role during the development of the nervous system. However, increasing evidence indicates that a subset of Semas, termed "immune Semas", acting through their cognate receptors, namely, plexins (Plxns), and neuropilins (Nrps), also contributes to both physiological and pathological responses of the immune system. Notably, immune Semas exert critical roles in regulating a broad spectrum of biological processes, including immune cell-cell interactions, activation, differentiation, cell migration and mobility, angiogenesis, tumor progression, as well as inflammatory responses. Accumulating evidence indicates that the modification in the signaling of immune Semas could lead to various immune-mediated inflammatory diseases, ranging from cancer to autoimmunity and allergies. This review summarizes the recent evidence regarding the role of immune Semas in the pathogenesis of asthma and allergic diseases and discusses their therapeutic potential for treating these diseases.
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17
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Lin CC, Wang YY, Chen SM, Liu YT, Li JQ, Li F, Dai JC, Zhang T, Qiu F, Liu H, Dai Z, Zhang ZD. Shegan-Mahuang Decoction ameliorates asthmatic airway hyperresponsiveness by downregulating Th2/Th17 cells but upregulating CD4+FoxP3+ Tregs. JOURNAL OF ETHNOPHARMACOLOGY 2020; 253:112656. [PMID: 32035217 DOI: 10.1016/j.jep.2020.112656] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 01/22/2020] [Accepted: 02/05/2020] [Indexed: 01/21/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shegan-Mahuang Decoction (SMD), also named Yakammaoto or Shegan-Mahuang Tang, is a classic formula of traditional Chinese medicine with nine herbs, including Asarum sieboldii Miq., Aster tataricus L.f., Ephedra sinica Stapf, Belamcanda chinensis (L.) Redouté, Pinellia ternata (Thunb.) Breit., Schisandra chinensis (Turcz.) Baill., Tussilago farfara L., Zingiber officinale Roscoe, and Ziziphus jujuba Mill. SMD was originally discovered by Zhang Zhongjing in Eastern Han dynasty. It has been widely used as traditional medicine to treat flu-like symptoms in China and Japan for around twenty centuries. It was also utilized for the treatment of the early stage of acute asthma. However, the immune mechanisms underlying its therapeutic effects remain unknown. AIM OF THE STUDY This study was set to investigate the effects of SMD on asthmatic airway hyperresponsiveness and its impacts on adaptive immunity in a mouse model of asthma. MATERIALS AND METHODS The HPLC fingerprint profile of the water extract of SMD recorded 22 peaks, including those equivalent to guanosine, chlorogenic acid, tectoridin, 6-gingerol and wuweizisu B, as described previously (Yen et al., 2014). Airway hyperresponsiveness was assessed by measuring the airway resistance. Cellular infiltration was measured via H&E staining and immunochemistry while gene expression was analyzed using real-time RT-PCR. Treg frequency was determined through flow analysis whereas cytokine production in the supernatant was evaluated using ELISA. Finally, mTOR and NF-kB signalings were analyzed via Western blotting. RESULTS We found that SMD largely corrected the imbalance of Th cell subsets in asthmatic mice with a significant inhibition of Th2 and Th17 cytokine production, thereby reducing asthmatic airway hyperresponsiveness. Moreover, lung function tests showed that SMD reduced airway hyperresponsiveness while immunohistochemical analyses demonstrated that SMD attenuated pulmonary infiltration of CD3+ and CD4+ T cells. Further, we observed a significant increase in the proportion of CD4+Foxp3+ Tregs in SMD-treated asthmatic mice. We also found that SMD downregulated gene expression of GATA3 and ROR-γt in murine lung tissue. In addition, both mTOR- and NF-kB-related protein expressions were reduced in the lung tissue of SMD-treated mice. SMD inhibited Th2/Th17 cytokine production by CD4+ T cells and also their mTOR activity in vitro. CONCLUSIONS Our findings demonstrate that SMD attenuates asthmatic airway hyperresponsiveness by hindering Th2/Th17 differentiation, promoting CD4+FoxP3+ Treg generation and suppressing mTOR and NF-kB activities.
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Affiliation(s)
- Cheng-Chuang Lin
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China
| | - Yuan-Yuan Wang
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China
| | - Si-Min Chen
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China
| | - Yun-Tao Liu
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China
| | - Ji-Qiang Li
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China
| | - Fang Li
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China
| | - Jie-Chen Dai
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China
| | - Tong Zhang
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China
| | - Feifei Qiu
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China
| | - Huazhen Liu
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China
| | - Zhenhua Dai
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China.
| | - Zhong-De Zhang
- Section of Immunology & Joint Immunology Program, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong, 510006, China.
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18
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Movassagh H, Ojo OO, Mohammed A, Shan L, Halayko AJ, Gounni AS. Genetic Deletion of Semaphorin 3E Aggravates Airway Contraction in a Mouse Model of Allergic Asthma. Am J Respir Cell Mol Biol 2019; 60:601-603. [PMID: 31042085 DOI: 10.1165/rcmb.2017-0434le] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
| | - Oluwaseun O Ojo
- 1 University of Manitoba Winnipeg, Manitoba, Canada and.,2 Children's Hospital Research Institute of Manitoba Winnipeg, Manitoba, Canada
| | | | - Lianyu Shan
- 1 University of Manitoba Winnipeg, Manitoba, Canada and
| | - Andrew J Halayko
- 1 University of Manitoba Winnipeg, Manitoba, Canada and.,2 Children's Hospital Research Institute of Manitoba Winnipeg, Manitoba, Canada
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19
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Kermarrec L, Eissa N, Wang H, Kapoor K, Diarra A, Gounni AS, Bernstein CN, Ghia J. Semaphorin-3E attenuates intestinal inflammation through the regulation of the communication between splenic CD11C + and CD4 + CD25 - T-cells. Br J Pharmacol 2019; 176:1235-1250. [PMID: 30736100 PMCID: PMC6468259 DOI: 10.1111/bph.14614] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 01/02/2019] [Accepted: 01/15/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND AND PURPOSE An alteration in the communication between the innate and adaptive immune cells is a hallmark of ulcerative colitis (UC). Semaphorin-3E (SEMA3E), a secreted guidance protein, regulates various immune responses. EXPERIMENTAL APPROACH We investigated the expression of SEMA3E in colonic biopsies of active UC patients and its mechanisms in Sema3e-/- mice using an experimental model of UC. KEY RESULTS SEMA3E level was decreased in active UC patients and negatively correlated with pro-inflammatory mediators. Colonic expression of SEMA3E was reduced in colitic Sema3e+/+ mice, and recombinant (rec-) Plexin-D1 treatment exacerbated disease severity. In vivo rec-SEMA3E treatment restored SEMA3E level in colitic Sema3e+/+ mice. In Sema3e-/- mice, disease severity was increased, and rec-SEMA3E ameliorated these effects. Lack of Sema3e increased the expression of CD11c and CD86 markers. Colitic Sema3e-/- splenocytes and splenic CD11c+ cells produced more IL-12/23 and IFN-γ compared to Sema3e+/+ , and rec-SEMA3E reduced their release as much as NF-κB inhibitors, whereas an NF-κB activator increased their production and attenuated the effect of rec-SEMA3E. Colitic Sema3e-/- splenic CD11c+ /CD4+ CD25- T-cell co-cultures produced higher concentrations of IFN-γ and IL-17 when compared to colitic Sema3e+/+ splenic cell co-cultures, and rec-SEMA3E decreased these effects. In vitro, anti-IL-12p19 and -12p35 antibodies and rec-IL-12 and -23 treatment confirmed the crosstalk between CD11c+ and CD4+ CD25- T-cells. CONCLUSION AND IMPLICATIONS SEMA3E is reduced in colitis and modulates colonic inflammation by regulating the interaction between CD11c+ and CD4+ CD25- T-cells via an NF-κB-dependent mechanism. Thus, SEMA3E could be a potential therapeutic target for UC patients.
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Affiliation(s)
| | - Nour Eissa
- Department of ImmunologyUniversity of ManitobaWinnipegManitobaCanada
- Children Research Hospital Research Institute of ManitobaUniversity of ManitobaWinnipegManitobaCanada
- Department of Internal Medicine Section of Gastroenterology, IBD Clinical and Research CentreUniversity of ManitobaWinnipegManitobaCanada
| | - Hongxing Wang
- Department of ImmunologyUniversity of ManitobaWinnipegManitobaCanada
| | - Kunal Kapoor
- Department of ImmunologyUniversity of ManitobaWinnipegManitobaCanada
| | - Abdoulaye Diarra
- Department of ImmunologyUniversity of ManitobaWinnipegManitobaCanada
| | | | - Charles N. Bernstein
- Department of Internal Medicine Section of Gastroenterology, IBD Clinical and Research CentreUniversity of ManitobaWinnipegManitobaCanada
| | - Jean‐Eric Ghia
- Department of ImmunologyUniversity of ManitobaWinnipegManitobaCanada
- Children Research Hospital Research Institute of ManitobaUniversity of ManitobaWinnipegManitobaCanada
- Department of Internal Medicine Section of Gastroenterology, IBD Clinical and Research CentreUniversity of ManitobaWinnipegManitobaCanada
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20
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Tatari N, Movassagh H, Shan L, Koussih L, Gounni AS. Semaphorin 3E Inhibits House Dust Mite-Induced Angiogenesis in a Mouse Model of Allergic Asthma. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:762-772. [PMID: 30711489 DOI: 10.1016/j.ajpath.2019.01.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 12/15/2018] [Accepted: 01/03/2019] [Indexed: 12/11/2022]
Abstract
Increased angiogenesis is a characteristic feature of remodeling in asthmatic airways and stems from the imbalance between pro-angiogenic and anti-angiogenic factors. Surprisingly, the factors regulating this process in allergic asthma are poorly defined. Previously, we showed an important role of semaphorins 3E (Sema3E) in growth factor-induced airway smooth muscle proliferation and migration in vitro, and in down-regulating airway inflammation, T helper 2/T helper 17 cytokine response, mucus cell hyperplasia, and airway hyperresponsiveness in vivo. However, the role of Sema3E in airway angiogenesis is not fully understood. Here, we investigated the role of Sema3E in airway angiogenesis using a house dust mite (HDM) murine model of allergic asthma. Intranasal treatment with recombinant Sema3E significantly reduced the expression of angiogenesis markers within the airways of HDM-challenged mice compared with untreated mice. HDM-induced expression of vascular endothelial growth factor (VEGF) and VEGF receptor 2 protein were diminished substantially on Sema3E treatment. Interestingly, Sema3E-treated mice showed an enhanced expression of the negative regulator of angiogenesis, soluble VEGF receptor 1, compared with the untreated mice. These events were reversed in Sema3E-deficient mice at baseline or on HDM challenge. Taken together, this study provides the first evidence that Sema3E modulates angiogenesis in allergic asthmatic airways via modulating pro- and anti-angiogenic factors.
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Affiliation(s)
- Nazanin Tatari
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Hesam Movassagh
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Lianyu Shan
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Latifa Koussih
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Abdelilah S Gounni
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.
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21
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Iyer AS, Chapoval SP. Neuroimmune Semaphorin 4A in Cancer Angiogenesis and Inflammation: A Promoter or a Suppressor? Int J Mol Sci 2018; 20:ijms20010124. [PMID: 30598022 PMCID: PMC6337608 DOI: 10.3390/ijms20010124] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/17/2018] [Accepted: 12/21/2018] [Indexed: 02/06/2023] Open
Abstract
Neuroimmune semaphorin 4A (Sema4A), a member of semaphorin family of transmembrane and secreted proteins, is an important regulator of neuronal and immune functions. In the nervous system, Sema4A primarily regulates the functional activity of neurons serving as an axon guidance molecule. In the immune system, Sema4A regulates immune cell activation and function, instructing a fine tuning of the immune response. Recent studies have shown a dysregulation of Sema4A expression in several types of cancer such as hepatocellular carcinoma, colorectal, and breast cancers. Cancers have been associated with abnormal angiogenesis. The function of Sema4A in angiogenesis and cancer is not defined. Recent studies have demonstrated Sema4A expression and function in endothelial cells. However, the results of these studies are controversial as they report either pro- or anti-angiogenic Sema4A effects depending on the experimental settings. In this mini-review, we discuss these findings as well as our data on Sema4A regulation of inflammation and angiogenesis, which both are important pathologic processes underlining tumorigenesis and tumor metastasis. Understanding the role of Sema4A in those processes may guide the development of improved therapeutic treatments for cancer.
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Affiliation(s)
- Apoorva S Iyer
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Svetlana P Chapoval
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- Program in Oncology at the Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
- SemaPlex LLC, Ellicott City, MD 21042, USA.
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22
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Movassagh H, Koussih L, Shan L, Gounni AS. The regulatory role of semaphorin 3E in allergic asthma. Int J Biochem Cell Biol 2018; 106:68-73. [PMID: 30447428 DOI: 10.1016/j.biocel.2018.11.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 11/06/2018] [Accepted: 11/12/2018] [Indexed: 10/27/2022]
Abstract
Semaphorins were originally discovered as essential mediators involved in regulation of axonal growth during development of the nervous system. Ubiquitously expressed on various organs, they control several cellular functions by regulating essential signaling pathways. Among them, semaphorin3E binds plexinD1 as the primary receptor and mediates regulatory effects on cell migration, proliferation, and angiogenesis considered major physiological and pathological features in health and disease. Recent in vitro and in vivo experimental evidence demonstrate a key regulator role of semaphorin3E on airway inflammation, hyperresponsivenss and remodeling in allergic asthma. Herein, we aim to provide a broad overview of the biology of semaphorin family and review the recently discovered regulatory role of semaphorin3E in modulating immune cells and structural cells function in the airways. These findings support the concept of semaphorin3E/plexinD1 axis as a therapeutic target in allergic asthma.
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Affiliation(s)
- Hesam Movassagh
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Latifa Koussih
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Lianyu Shan
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Abdelilah S Gounni
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.
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Alamri A, Rahman R, Zhang M, Alamri A, Gounni AS, Kung SKP. Semaphorin-3E Produced by Immature Dendritic Cells Regulates Activated Natural Killer Cells Migration. Front Immunol 2018; 9:1005. [PMID: 29867980 PMCID: PMC5954025 DOI: 10.3389/fimmu.2018.01005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 04/23/2018] [Indexed: 12/14/2022] Open
Abstract
Natural killer (NK) cells and dendritic cells (DCs) are two innate immune cells that are critical in regulating innate and adaptive immunity. Cellular functions and migratory responses of NK or DC can be further regulated in NK-DC crosstalk that involves multiple cytokine signals and/or direct cell-cell contacts. Semaphorin-3E (Sema-3E) is a member of a large family of Semaphorin proteins that play diverse regulatory functions in different biological systems upon its binding to the cognate receptors. However, possible role(s) of Sema-3E on the regulation of NK-cell functions has not been elucidated. Here, we first demonstrated that DC and NK cells expressed Sema-3E and its receptors, respectively. To formally address the importance of DC-derived Sema-3E in regulating NK-cell migration, we compared in vitro migratory responses of activated NK cells (aNKs) toward different conditioned media of DCs (immature, lipopolysaccharide- or Poly I:C-stimulated) derived from Sema-3E+/+ or Sema-3E-/- mice. We observed that aNKs exhibited enhanced migrations toward the conditioned medium of the immature Sema-3E-/- DC, when compared with that of the immature Sema-3E+/+ DC. Addition of exogenous recombinant Sema-3E to the conditioned medium of the Sema-3E-/- immature DC (iDC) abrogated such enhanced NK-cell migration. Our current work revealed a novel role of Sema-3E in limiting NK-cell migrations toward iDC in NK-DC crosstalk.
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Affiliation(s)
- Abdulaziz Alamri
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Rahmat Rahman
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Manli Zhang
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Abeer Alamri
- Department of Oral Biology, University of Manitoba, Winnipeg, MB, Canada
| | | | - Sam K P Kung
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
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Abstract
Several neuronal guidance proteins, known as semaphorin molecules, function in the immune system. This dual tissue performance has led to them being defined as "neuroimmune semaphorins". They have been shown to regulate T cell activation by serving as costimulatory molecules. Similar to classical costimulatory molecules, neuroimmune semaphorins are either constitutively or inducibly expressed on immune cells. In contrast to the classical costimulatory molecule function, the action of neuroimmune semaphorins requires the presence of two signals, the first one provided by TCR/MHC engagement, and the second one provided by B7/CD28 interaction. Thus, neuroimmune semaphorins serve as a "signal three" for immune cell activation and regulate the overall intensity of immune response. The current knowledge on their structures, multiple receptors, specific cell/tissue/organ expression, and distinct functions in different diseases are summarized and discussed in this review.
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Affiliation(s)
- Svetlana P Chapoval
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA.
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, USA.
- Program in Oncology at the Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA.
- SemaPlex LLC, Ellicott City, MD, USA.
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Movassagh H, Khadem F, Gounni AS. Semaphorins and Their Roles in Airway Biology: Potential as Therapeutic Targets. Am J Respir Cell Mol Biol 2018; 58:21-27. [PMID: 28817310 DOI: 10.1165/rcmb.2017-0171tr] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Semaphorins are a large family of proteins originally identified as axon guidance cues that play a crucial role in neural development. They are also ubiquitously expressed beyond the nervous system and contribute to regulation of essential cell functions, such as cell migration, proliferation, and adhesion. Binding of semaphorins to their receptors, including plexins and neuropilins, triggers diverse signaling pathways, which are involved in the pathogenesis of various diseases, from cancer to autoimmune and allergic disorders. Despite emerging evidence suggestive of nonredundant roles of semaphorins in cellular and molecular mechanisms of the airway biology, their precise expression and function have not been fully addressed. Here, we first provide an overview about the semaphorin family, their receptors, signaling pathways, and their cellular functions. Then, we highlight the novel findings on the role of semaphorins in airway biology under developmental, homeostatic, and pathological conditions. In particular, we discuss the dual roles of semaphorins in respiratory disorders where they can up- or downregulate processes underlying the pathophysiology of the airway diseases. Next, our recent findings on the expression and function of semaphorin 3E in allergic asthma are further emphasized, and its potential mechanism of action in allergic airway inflammation and remodeling is discussed. Finally, we raise some unanswered questions aiming to develop future research directions.
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Affiliation(s)
- Hesam Movassagh
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Forough Khadem
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Abdelilah S Gounni
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
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Nishide M, Kumanogoh A. The role of semaphorins in immune responses and autoimmune rheumatic diseases. Nat Rev Rheumatol 2017; 14:19-31. [DOI: 10.1038/nrrheum.2017.201] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Alamri A, Soussi Gounni A, Kung SKP. View Point: Semaphorin-3E: An Emerging Modulator of Natural Killer Cell Functions? Int J Mol Sci 2017; 18:E2337. [PMID: 29113093 PMCID: PMC5713306 DOI: 10.3390/ijms18112337] [Citation(s) in RCA: 5] [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: 09/29/2017] [Revised: 10/21/2017] [Accepted: 11/01/2017] [Indexed: 12/29/2022] Open
Abstract
Semaphorin-3E (Sema-3E) is a member of a large family of proteins originally identified as axon guidance cues in neural development. It is expressed in different cell types, such as immune cells, cancer cells, neural cells, and epithelial cells. Subsequently, dys-regulation of Sema-3E expression has been reported in various biological processes that range from cancers to autoimmune and allergic diseases. Recent work in our laboratories revealed a critical immunoregulatory role of Sema-3E in experimental allergic asthma. We further speculate possible immune modulatory function(s) of Sema-3E on natural killer (NK) cells.
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Affiliation(s)
- Abdulaziz Alamri
- Department of Immunology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0T5, Canada.
| | - Abdelilah Soussi Gounni
- Department of Immunology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0T5, Canada.
| | - Sam K P Kung
- Department of Immunology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0T5, Canada.
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Movassagh H, Shan L, Duke-Cohan JS, Chakir J, Halayko AJ, Koussih L, Gounni AS. Downregulation of semaphorin 3E promotes hallmarks of experimental chronic allergic asthma. Oncotarget 2017; 8:98953-98963. [PMID: 29228740 PMCID: PMC5716780 DOI: 10.18632/oncotarget.22144] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 08/26/2017] [Indexed: 12/31/2022] Open
Abstract
Guidance cues such as semaphorins are attractive novel therapeutic targets for allergic disorders. We have previously described an inhibitory effect of semaphorin 3E (Sema3E) on human airway smooth muscle cell function. We have further addressed a canonical role for Sema3E in acute model of allergic asthma in vivo. Considering the chronic nature of the disease, the potential implication of Sema3E to alleviate long-lasting deficits should be investigated. Expression of Sema3E in a chronic model of allergic asthma was assessed after exposure to house dust mite (HDM) as a clinically relevant allergen. Chronic features of allergic asthma including airway hyper-responsiveness (AHR), inflammation, and remodeling were studied in Sema3E-deficient mice. Additionally, the effect of exogenous Sema3E treatment was evaluated in prophylactic and therapeutic experimental models. We have demonstrated that expression of Sema3E is robustly suppressed in the airways upon chronic HDM exposure. Chronic allergic airway disease was significantly augmented in Sema3E-deficient mouse model which was associated with an increased AHR, remodeling, and Th2/Th17 inflammation. Intranasal Sema3E administration restored chronic deficits of allergic asthma in mice. Data from this study unveil a key regulatory role of Sema3E in chronic course of asthma via orchestration of impaired inflammatory and remodeling responses.
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Affiliation(s)
- Hesam Movassagh
- Department of Immunology, Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Lianyu Shan
- Department of Immunology, Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Jonathan S Duke-Cohan
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Institutes of Medicine, Boston, MA, USA
| | - Jamila Chakir
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie du Quebec, Universite´ Laval, Quebec City, QC, Canada
| | - Andrew J Halayko
- Department of Physiology & Pathophysiology, Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, MB, Canada.,Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Latifa Koussih
- Department of Immunology, Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Abdelilah S Gounni
- Department of Immunology, Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, MB, Canada
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Movassagh H, Shan L, Duke-Cohan JS, Halayko AJ, Uzonna JE, Gounni AS. Semaphorin 3E Alleviates Hallmarks of House Dust Mite-Induced Allergic Airway Disease. THE AMERICAN JOURNAL OF PATHOLOGY 2017. [PMID: 28634005 DOI: 10.1016/j.ajpath.2017.03.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Semaphorins are an essential family of guidance cues ubiquitously expressed in various organs, which play diverse developmental, homeostatic, and pathological roles. Semaphorin 3E (Sema3E), initially identified as a neuronal chemorepellent, is involved in the regulation of cell migration, proliferation, and angiogenesis. However, expression and function of Sema3E in allergic asthma has not been extensively investigated. We determined the expression of Sema3E in the airways and its effect on airway inflammation, hyperresponsiveness, and remodeling as pathological features of allergic asthma provoked by house dust mite in vivo. Our data indicate that exposure to house dust mite markedly reduces Sema3E expression in mouse airways. More important, replenishment of Sema3E by intranasal administration of exogenous Sema3E protects mice from allergic asthma by reducing eosinophilic inflammation, serum IgE level, and T helper cell 2/T helper cell 17 cytokine response. The regulatory effect of Sema3E on cytokine response was sustained on allergen recall response in the lymph nodes and spleen. Furthermore, goblet cell hyperplasia, collagen deposition, and airway hyperresponsiveness were significantly diminished on Sema3E treatment. The inhibitory effect of Sema3E was associated with a reduction of pulmonary CD11b+ conventional dendritic cells and regulation of CD4+ T-cell cytokine response. Collectively, our data represent a novel approach to treating allergic asthma via regulation of immune response to house dust mite.
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Affiliation(s)
- Hesam Movassagh
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Lianyu Shan
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Jonathan S Duke-Cohan
- Department of Medical Oncology, Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, Massachusetts; Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Andrew J Halayko
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Jude E Uzonna
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Abdelilah S Gounni
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.
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30
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Movassagh H, Shan L, Chakir J, McConville JF, Halayko AJ, Koussih L, Gounni AS. Expression of semaphorin 3E is suppressed in severe asthma. J Allergy Clin Immunol 2017; 140:1176-1179. [PMID: 28506853 DOI: 10.1016/j.jaci.2017.04.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 03/11/2017] [Accepted: 04/05/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Hesam Movassagh
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Lianyu Shan
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Jamila Chakir
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie du Quebec, Université Laval, Quebec City, Quebec, Canada
| | | | - Andrew J Halayko
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Manitoba, Winnipeg, Manitoba, Canada; Biology of Breathing Theme, Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Latifa Koussih
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Abdelilah S Gounni
- Department of Immunology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.
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Neutrophilic Inflammation in the Immune Responses of Chronic Obstructive Pulmonary Disease: Lessons from Animal Models. J Immunol Res 2017; 2017:7915975. [PMID: 28536707 PMCID: PMC5426078 DOI: 10.1155/2017/7915975] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 04/05/2017] [Indexed: 12/20/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a major cause of mortality worldwide, which is characterized by chronic bronchitis, destruction of small airways, and enlargement/disorganization of alveoli. It is generally accepted that the neutrophilic airway inflammation observed in the lungs of COPD patients is intrinsically linked to the tissue destruction and alveolar airspace enlargement, leading to disease progression. Animal models play an important role in studying the underlying mechanisms of COPD as they address questions involving integrated whole body responses. This review aims to summarize the current animal models of COPD, focusing on their advantages and disadvantages on immune responses and neutrophilic inflammation. Also, we propose a potential new animal model of COPD, which may mimic the most characteristics of human COPD pathogenesis, including persistent moderate-to-high levels of neutrophilic inflammation.
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