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Seth P, Dubey S. IL-22 as a target for therapeutic intervention: Current knowledge on its role in various diseases. Cytokine 2023; 169:156293. [PMID: 37441942 DOI: 10.1016/j.cyto.2023.156293] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 06/12/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023]
Abstract
IL-22 has emerged as a crucial cytokine mediating protective response against pathogens and tissue regeneration. Dysregulated production of IL-22 has been shown to play a pivotal role in the pathogenesis of various diseases like malignant tumours, viral, cardiovascular, allergic and autoimmune disorders. Interleukin 22 belongs to IFN-IL-10 cytokine family. It is a major proinflammatory cytokine secreted by activated Th1 cells (Th22), though can also be secreted by many other immune cells like group 3 innate lymphocytes, γδ T cells, NK cells, NK T cells, and mucosal associated invariant T cells. Th22 cells exclusively release IL-22 but not IL-17 or IFN-γ (as Th1 cells releases IFN-γ along with IL-22 and Th17 cells releases IL-17 along with IL-22) and also express aryl hydrocarbon receptor as the key transcription factor. Th22 cells also exhibit expression of chemokine receptor CCR6 and skin-homing receptors CCR4 and CCR10 indicating the involvement of this subset in bolstering epithelial barrier immunity and promoting secretion of antimicrobial peptides (AMPs) from intestinal epithelial cells. The function of IL-22 is modulated by IL-22 binding protein (binds to IL-22 and inhibits it binding to its cell surface receptor); which serves as a competitor for IL-22R1 chain of IL-22 receptor. The pathogenic and protective nature of the Th22 cells is modulated both by the site of infected tissue and the type of disease pathology. This review aims to discuss key features of IL-22 biology, comparisons between IL and 22 and IFN-γ and its role as a potential immune therapy target in different maladies.
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Affiliation(s)
- Pranav Seth
- Amity Institute of Virology & Immunology, Amity University Uttar Pradesh, Sector 125, Noida, India
| | - Shweta Dubey
- Amity Institute of Virology & Immunology, Amity University Uttar Pradesh, Sector 125, Noida, India.
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2
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Role of IL-22 in intestinal microenvironment and potential targeted therapy through diet. Immunol Res 2022; 71:121-129. [PMID: 36173554 DOI: 10.1007/s12026-022-09325-5] [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: 06/09/2022] [Accepted: 09/20/2022] [Indexed: 11/05/2022]
Abstract
IL-22 is a type 2 receptor cytokine in IL-10 family. IL-22 is usually secreted by innate and adaptive immune cells and takes its effects on non-hematopoietic cells. Through activate STAT3 pathway, IL-22 plays an important role in infection clearance and tissue regeneration, which is critical for barrier integrate and homeostasis. Abnormal activation of IL-22 signal was observed in inflammation diseases, autoimmune diseases, and cancers. We review the recent discoveries about the mechanism and regulation of IL-22 signal pathway from the perspective of intestinal micro-environment. Diet-based IL-22 target therapeutic strategies and their potential clinical significance will also be discussed.
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3
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Human gut bacterial metabolism drives Th17 activation and colitis. Cell Host Microbe 2022; 30:17-30.e9. [PMID: 34822777 PMCID: PMC8785648 DOI: 10.1016/j.chom.2021.11.001] [Citation(s) in RCA: 85] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 10/21/2021] [Accepted: 11/03/2021] [Indexed: 01/14/2023]
Abstract
Bacterial activation of T helper 17 (Th17) cells exacerbates mouse models of autoimmunity, but how human-associated bacteria impact Th17-driven disease remains elusive. We show that human gut Actinobacterium Eggerthella lenta induces intestinal Th17 activation by lifting inhibition of the Th17 transcription factor Rorγt through cell- and antigen-independent mechanisms. E. lenta is enriched in inflammatory bowel disease (IBD) patients and worsens colitis in a Rorc-dependent manner in mice. Th17 activation varies across E. lenta strains, which is attributable to the cardiac glycoside reductase 2 (Cgr2) enzyme. Cgr2 is sufficient to induce interleukin (IL)-17a, a major Th17 cytokine. cgr2+ E. lenta deplete putative steroidal glycosides in pure culture; related compounds are negatively associated with human IBD severity. Finally, leveraging the sensitivity of Cgr2 to dietary arginine, we prevented E. lenta-induced intestinal inflammation in mice. Together, these results support a role for human gut bacterial metabolism in driving Th17-dependent autoimmunity.
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4
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Yan J, Yu J, Liu K, Liu Y, Mao C, Gao W. The Pathogenic Roles of IL-22 in Colitis: Its Transcription Regulation by Musculin in T Helper Subsets and Innate Lymphoid Cells. Front Immunol 2021; 12:758730. [PMID: 34992594 PMCID: PMC8724035 DOI: 10.3389/fimmu.2021.758730] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 12/06/2021] [Indexed: 12/12/2022] Open
Abstract
IL-22 plays a crucial role in promoting inflammation, antimicrobial immunity and tissue repair at barrier surfaces. The role of IL-22 in colitis is still controversial: while IL-22 has a protective effect on gut epithelium in acute injuries, it also enhances colitis in a context-dependent manner. Here, we summarize the Yin and Yang of IL-22 in colitis. Particularly, we emphasize the role of innate lymphoid cells (ILCs) in IL-22 production and regulation. A previously underappreciated transcription factor, Musculin (MSC), has been recently identified to be expressed in not only Th17 cells, but also RORγt+/Id2+ IL-22-producing group 3 ILCs in the gut of naïve mice. We hypothesize that the co-expression and interaction of MSC with the key transcription repressor Id2 in developing lymphoid cells (e.g., in LTi cells) and ILC precursors might fine tune the developmental programs or regulate the plasticity of adaptive Th subset and innate ILCs. The much-elevated expression of IL-22 in MSC-/- ILC3s suggests that MSC may function as: 1) a transcription suppressor for cytokines, particularly for IL-22, and/or 2) a gatekeeper for specific lineages of Th cells and innate ILCs as well. Amelioration of colitis symptoms in MSC-/- mice by IL-22-blocking agent IL-22BP-Fc suggests a counterintuitive pathogenic role of IL-22 in the absence of MSC as a checkpoint. The theory that exuberant production of IL-22 under pathological conditions (e.g., in human inflammatory bowel disease, IBD) may cause epithelial inflammation due to endoplasmic reticulum (ER) stress response is worth further investigation. Rheostatic regulation of IL-22 may be of therapeutic value to restore homeostatic balance and promote intestinal health in human colitis.
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Affiliation(s)
- Jun Yan
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Special War Wound, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Jing Yu
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Special War Wound, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Ke Liu
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Special War Wound, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Yijia Liu
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Special War Wound, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | | | - Wenda Gao
- Antagen Pharmaceuticals, Boston, MA, United States
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5
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Eken A, Erdem S, Haliloglu Y, Zehra Okus F, Cakir M, Fatih Yetkin M, Akcakoyunlu M, Karayigit MO, Azizoglu ZB, Bicer A, Gur TN, Aslan K, Hora M, Oukka M, Altuntas HD, Ufuk Nalbantoglu O, Gundogdu A, Mirza M, Canatan H. Temporal overexpression of IL-22 and Reg3γ differentially impacts the severity of experimental autoimmune encephalomyelitis. Immunology 2021; 164:73-89. [PMID: 33876425 PMCID: PMC8358722 DOI: 10.1111/imm.13340] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 12/18/2022] Open
Abstract
IL-22 is an alpha-helical cytokine which belongs to the IL-10 family of cytokines. IL-22 is produced by RORγt+ innate and adaptive lymphocytes, including ILC3, γδ T, iNKT, Th17 and Th22 cells and some granulocytes. IL-22 receptor is expressed primarily by non-haematopoietic cells. IL-22 is critical for barrier immunity at the mucosal surfaces in the steady state and during infection. Although IL-22 knockout mice were previously shown to develop experimental autoimmune encephalomyelitis (EAE), a murine model of multiple sclerosis (MS), how temporal IL-22 manipulation in adult mice would affect EAE course has not been studied previously. In this study, we overexpressed IL-22 via hydrodynamic gene delivery or blocked it via neutralizing antibodies in C57BL/6 mice to explore the therapeutic impact of IL-22 modulation on the EAE course. IL-22 overexpression significantly decreased EAE scores and demyelination, and reduced infiltration of IFN-γ+IL-17A+Th17 cells into the central nervous system (CNS). The neutralization of IL-22 did not alter the EAE pathology significantly. We show that IL-22-mediated protection is independent of Reg3γ, an epithelial cell-derived antimicrobial peptide induced by IL-22. Thus, overexpression of Reg3γ significantly exacerbated EAE scores, demyelination and infiltration of IFN-γ+IL-17A+ and IL-17A+GM-CSF+Th17 cells to CNS. We also show that Reg3γ may inhibit IL-2-mediated STAT5 signalling and impair expansion of Treg cells in vivo and in vitro. Finally, Reg3γ overexpression dramatically impacted intestinal microbiota during EAE. Our results provide novel insight into the role of IL-22 and IL-22-induced antimicrobial peptide Reg3γ in the pathogenesis of CNS inflammation in a murine model of MS.
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Affiliation(s)
- Ahmet Eken
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Serife Erdem
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Yesim Haliloglu
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Fatma Zehra Okus
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Mustafa Cakir
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
- Department of Medical BiologyVan Yuzuncu Yıl University School of MedicineVanTurkey
| | | | - Merve Akcakoyunlu
- Department of NeurologyErciyes University School of MedicineKayseriTurkey
| | | | - Zehra Busra Azizoglu
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Ayten Bicer
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Tugba Nur Gur
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Kubra Aslan
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Mehmet Hora
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Mohamed Oukka
- Department of ImmunologyUniversity of WashingtonSeattleWAUSA
| | - Hamiyet Donmez Altuntas
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Ozkan Ufuk Nalbantoglu
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
- Department of Computer EngineeringFaculty of EngineeringErciyes UniversityKayseriTurkey
| | - Aycan Gundogdu
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
- Department of Microbiology and Clinical MicrobiologyErciyes University School of MedicineKayseriTurkey
| | - Meral Mirza
- Department of NeurologyErciyes University School of MedicineKayseriTurkey
| | - Halit Canatan
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
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6
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Shen Y, Jin X, Chen W, Gao C, Bian Q, Fan J, Luan J, Cao Z, Guo Z, Gu Y, Liu H, Ju D, Mei X. Interleukin-22 ameliorated acetaminophen-induced kidney injury by inhibiting mitochondrial dysfunction and inflammatory responses. Appl Microbiol Biotechnol 2020; 104:5889-5898. [PMID: 32356198 DOI: 10.1007/s00253-020-10638-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/15/2020] [Accepted: 04/20/2020] [Indexed: 11/29/2022]
Abstract
Acetaminophen (APAP) overdose can lead to acute, severe kidney injury, which has recently attracted considerable attention among researchers and clinicians. Unfortunately, there are no well-established treatments for APAP-induced renal injury, and the molecular mechanism of APAP-induced kidney injury is still unclear. Herein, we explored the protective effects of interleukin (IL)-22 on APAP-induced renal injury and the underlying molecular basis. We found that IL-22 could significantly alleviate the accumulation of reactive oxygen species (ROS) and ameliorate mitochondrial dysfunction, reducing APAP-induced renal tubular epithelial cell (TEC) death in vitro and in vivo. Furthermore, IL-22 could downregulate the APAP-induced NLRP3 inflammasome activation and mature IL-1β release in kidney injury. Additionally, the APAP-mediated upregulation of the serum levels of IL-18, TNF-α, IL-6, and IL-1β was obviously decreased, suggesting IL-22 has inhibitory effects on inflammatory responses. Conclusively, our study demonstrated that IL-22 exerted ameliorative effects on APAP-induced kidney injury by alleviating mitochondrial dysfunction and NLRP3 inflammasome activation, suggesting that IL-22 represents a potential therapeutic approach to treat APAP-induced kidney injury. KEY POINTS: • IL-22 could ameliorate APAP that triggered oxidative stress and mitochondrial dysfunction. • IL-22 could reduce APAP that caused inflammatory responses. Graphical abstract.
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Affiliation(s)
- Yilan Shen
- Department of Nephrology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Xin Jin
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, 201203, China
| | - Wei Chen
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, 201203, China
- Department of Ophthalmology, Stanford University School of Medicine, Palo Alto, CA, 94304, USA
| | - Congrong Gao
- Department of Geratology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Qi Bian
- Department of Nephrology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Jiajun Fan
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, 201203, China
| | - Jingyun Luan
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, 201203, China
| | - Zhonglian Cao
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, 201203, China
| | - Zhiyong Guo
- Department of Nephrology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Yuting Gu
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, 201203, China
| | - Hongrui Liu
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, 201203, China
| | - Dianwen Ju
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai, 201203, China.
| | - Xiaobin Mei
- Department of Nephrology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China.
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7
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Allegra A, Musolino C, Tonacci A, Pioggia G, Casciaro M, Gangemi S. Clinico-Biological Implications of Modified Levels of Cytokines in Chronic Lymphocytic Leukemia: A Possible Therapeutic Role. Cancers (Basel) 2020; 12:cancers12020524. [PMID: 32102441 PMCID: PMC7072434 DOI: 10.3390/cancers12020524] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/08/2020] [Accepted: 02/22/2020] [Indexed: 12/19/2022] Open
Abstract
B-cell chronic lymphocytic leukemia (B-CLL) is the main cause of mortality among hematologic diseases in Western nations. B-CLL is correlated with an intense alteration of the immune system. The altered functions of innate immune elements and adaptive immune factors are interconnected in B-CLL and are decisive for its onset, evolution, and therapeutic response. Modifications in the cytokine balance could support the growth of the leukemic clone via a modulation of cellular proliferation and apoptosis, as some cytokines have been reported to be able to affect the life of B-CLL cells in vivo. In this review, we will examine the role played by cytokines in the cellular dynamics of B-CLL patients, interpret the contradictions sometimes present in the literature regarding their action, and evaluate the possibility of manipulating their production in order to intervene in the natural history of the disease.
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Affiliation(s)
- Alessandro Allegra
- Division of Haematology, Department of Human Pathology in Adulthood and Childhood “Gaetano Barresi”, University of Messina, 98125 Messina, Italy; (A.A.); (C.M.)
| | - Caterina Musolino
- Division of Haematology, Department of Human Pathology in Adulthood and Childhood “Gaetano Barresi”, University of Messina, 98125 Messina, Italy; (A.A.); (C.M.)
| | - Alessandro Tonacci
- Clinical Physiology Institute, National Research Council of Italy (IFC-CNR), 56124 Pisa, Italy;
| | - Giovanni Pioggia
- Institute for Biomedical Research and Innovation (IRIB), National Research Council of Italy (CNR), 98164 Messina, Italy;
| | - Marco Casciaro
- Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy;
| | - Sebastiano Gangemi
- Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy;
- Correspondence:
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8
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He Y, Yang Y, Xu J, Liao Y, Liu L, Deng L, Xiong X. IL22 drives cutaneous melanoma cell proliferation, migration and invasion through activation of miR-181/STAT3/AKT axis. J Cancer 2020; 11:2679-2687. [PMID: 32201538 PMCID: PMC7066011 DOI: 10.7150/jca.40974] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 01/31/2020] [Indexed: 12/13/2022] Open
Abstract
Cutaneous melanoma (CM) is neoplastic growth of melanocytes with strong potential to proliferate and invade, prone to a fatal disease soon which is beyond surgical clearance. The use of regulator involving in antitumor immune responses has been identified as a potential therapeutic option for CM, but still need fully understood at present. Recently, interleukin 22 (IL22), an immune molecule secreted mostly by CD4+ T cells, was reported having functions in a variety of human diseases including encouragement of lung cancer progression, yet, its role in CM is lacking. Here, we first found elevated expression of IL22 in both serum of CM patients and tissues. Up-regulated IL22 significantly promoted cell proliferation, migration and invasion in CM cells deriving from different original culture history. Moreover, in vivo CM model, IL22 treatment caused a significant increase in tumor size. Additionally, we found these effects accompanied by obvious increased miR-181 expression in CM. Importantly, both in vivo and in vitro results revealed that miR-181 downregulation reversed the effects of IL22 on CM cell proliferation, migration, invasion, and CM tumor size as well. Finally, in CM cells deriving from different culture history, we identified STAT3 to be a target gene of miR-181. Higher expression level of IL22 suppressed STAT3 expression, while enhanced expression of p-AKT, p-β-catenin and MMP4; however, down-regulation of miR-181 reversed these situations. Thus, we conclude that IL22 promotes CM progression by driving miR-181/STAT3/AKT axis.
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Affiliation(s)
- Yuanmin He
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Yan Yang
- Department of Public Health, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Jixiang Xu
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Yongmei Liao
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Li Liu
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Li Deng
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Xia Xiong
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
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9
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Wang X, Xu J, Chen J, Jin S, Yao J, Yu T, Wang W, Guo R. IL-22 Confers EGFR-TKI Resistance in NSCLC via the AKT and ERK Signaling Pathways. Front Oncol 2019; 9:1167. [PMID: 31750252 PMCID: PMC6848259 DOI: 10.3389/fonc.2019.01167] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 10/17/2019] [Indexed: 01/01/2023] Open
Abstract
Background: The efficacy of an EGFR-targeted treatment strategy for non-small cell lung cancer (NSCLC) is reduced by drug resistance. IL-22 enhances tumor growth and induces chemotherapy resistance in human lung cancer cells. The present study elucidated the IL-22-induced mechanism underlying EGFR-tyrosine kinase inhibitor (TKI) resistance in NSCLC. Methods: The plasma and tissues of patients who received EGFR-TKIs were utilized to determine the association between IL-22 expression and gefitinib efficacy. The IL-22 effect on the EGFR/ERK/AKT pathways in NSCLC HCC827 and PC-9 cells was determined using the CCK-8 assay, western blot, and flow cytometric analysis. A PC-9 xenograft model of IL-22 exposure was established. Gefitinib was administered to mice in combination with IL-22 or vehicle. Results: We showed that IL-22 expression was higher in the EGFR-TKI-resistant group compared to EGFR-TKI-sensitive group. IL-22 expression was associated with EGFR-TKI efficacy in plasma. Additional treatment of IL-22 induced gefitinib resistance and reduced apoptosis in PC-9 and HCC827 cell lines. Furthermore, we showed that the effects of IL-22 attributed to p-ERK, p-EGFR, and p-AKT up-regulation. IL-22 neutralizing antibody completely abrogated the effects of IL-22 on apoptosis and AKT/EGFR/ERK signaling. Finally, we showed that IL-22 enhanced tumor growth and induced gefitinib resistance in the PC-9 xenograft model. Moreover, compared with gefitinib alone, the combination of IL-22 and gefitinib led to an increase in Ki67-positive staining and a reduction in TUNEL staining. Conclusions: Our findings indicate that IL-22 plays a role in tumor progression and EGFR-TKI resistance in NSCLC. Thus, IL-22 might serve as a novel biomarker to overcome resistance of EGFR-TKI.
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Affiliation(s)
- Xiaomeng Wang
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Department of Radiotherapy, II, The First People's Hospital of Shangqiu, Shangqiu, China
| | - Jiali Xu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jin Chen
- The Fourth Clinical Medical College, Nanjing Medical Universtiy, Nanjing, China
| | - Shidai Jin
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jiaqi Yao
- The First Clinical Medical College, Nanjing Medical Universtiy, Nanjing, China
| | - Tongfu Yu
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wei Wang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Renhua Guo
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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10
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Wang S, Fan J, Mei X, Luan J, Li Y, Zhang X, Chen W, Wang Y, Meng G, Ju D. Interleukin-22 Attenuated Renal Tubular Injury in Aristolochic Acid Nephropathy via Suppressing Activation of NLRP3 Inflammasome. Front Immunol 2019; 10:2277. [PMID: 31616439 PMCID: PMC6768973 DOI: 10.3389/fimmu.2019.02277] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 09/09/2019] [Indexed: 01/03/2023] Open
Abstract
Aristolochic acid nephropathy (AAN), as a rapidly progressive interstitial nephropathy due to excessive ingestion of aristolochia herbal medications, has recently raised considerable concerns among clinicians and researchers as its underlying pathogenic mechanisms are largely unclear. In the current study, we identified NLRP3 inflammasome activation as a novel pathological mechanism of AAN. We found that NLRP3 inflammasome was aberrantly activated both in vivo and in vitro after AA exposure. Blockade of IL-1β and NLRP3 inflammasome activation by IL-1Ra significantly attenuated renal tubular injury and function loss in AA-induced nephropathy. Moreover, NLRP3 or Caspase-1 deficiency protected against renal injury in the mouse model of acute AAN, suggesting that the NLRP3 signaling pathway was probably involved in the pathogenesis of AAN. We also found that administration of IL-22 could markedly attenuate renal tubular injury in AAN. Notably, IL-22 intervention significantly alleviated renal fibrosis and dysfunction in AA-induced nephropathy. Furthermore, IL-22 largely inhibited renal activation of NLRP3 inflammasome in AA-induced nephropathy. These results indicated that IL-22 ameliorated renal tubular injury in AAN through suppression of NLRP3 inflammasome activation. In summary, this study identified renal activation of NLRP3 inflammasome as a novel mechanism underlying the pathogenesis of AAN, thus providing a potential therapeutic strategy for AAN based on suppression of NLRP3 inflammasome activation.
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Affiliation(s)
- Shaofei Wang
- Minhang Hospital, Fudan University, Shanghai, China
- School of Pharmacy, Fudan University, Shanghai, China
| | - Jiajun Fan
- Minhang Hospital, Fudan University, Shanghai, China
- School of Pharmacy, Fudan University, Shanghai, China
| | - Xiaobin Mei
- Department of Nephrology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Jingyun Luan
- Minhang Hospital, Fudan University, Shanghai, China
- School of Pharmacy, Fudan University, Shanghai, China
| | - Yubin Li
- Minhang Hospital, Fudan University, Shanghai, China
- School of Pharmacy, Fudan University, Shanghai, China
| | - Xuyao Zhang
- Minhang Hospital, Fudan University, Shanghai, China
- School of Pharmacy, Fudan University, Shanghai, China
| | - Wei Chen
- Minhang Hospital, Fudan University, Shanghai, China
- School of Pharmacy, Fudan University, Shanghai, China
| | - Yichen Wang
- Minhang Hospital, Fudan University, Shanghai, China
- School of Pharmacy, Fudan University, Shanghai, China
| | - Guangxun Meng
- Unit of Innate Immunity, Key Laboratory of Molecular Virology and Immunology, Institute Pasteur of Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Dianwen Ju
- Minhang Hospital, Fudan University, Shanghai, China
- School of Pharmacy, Fudan University, Shanghai, China
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11
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IL-22Ra1 is induced during influenza infection by direct and indirect TLR3 induction of STAT1. Respir Res 2019; 20:184. [PMID: 31416461 PMCID: PMC6694528 DOI: 10.1186/s12931-019-1153-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 08/05/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Influenza attacks the epithelium of the lung, causing cell death and disruption of the epithelial barrier leading to fluid buildup in the lung and impairment of gas exchange. Limited treatment options for severe influenza pneumonia prioritize the need for the discovery of effective therapies. IL-22 is a cytokine that promotes tissue integrity and has strong promise as a treatment option. While research has been focused on the cytokine itself, there is limited understanding of the regulation of the IL-22 receptor (IL-22Ra1) at the epithelial surface during infection. METHODS IL-22Ra1 levels were measured by qRT-PCR, western blot and immunofluorescence following H1N1 influenza infection (A/PR/8/34 H1N1) or synthetic TLR3 mimetic, Poly (I:C). Regulation of the receptor was determined using STAT inhibitors (STAT1, STAT3 and PanSTAT inhibitors), TLR3 inhibition, and neutralization of interferon alpha receptor 2 (IFNAR2). Significance was determined by a p-value of greater than 0.05. Significance between two groups was measured using unpaired t-test and significance between more than two groups was measured using one-way ANOVA with Tukey Multiple Comparison Test. RESULTS Here we show both in vivo and in vitro that IL-22Ra1 was induced as early as 24 h after influenza (H1N1 PR8) infection. This induction was triggered by toll-like receptor 3 (TLR3) as a TLR3 mimetic [Poly (I:C)] also induced IL-22Ra1 and inhibition of endosomal formation required for TLR3 function inhibited this process. This upregulation was dependent upon IFNβ signaling through STAT1. Importantly, induction of IL-22Ra1 significantly increased IL-22 signaling as evidenced by pSTAT3 levels following IL-22 treatment. CONCLUSION Collectively, these data suggest epithelial cells may optimize the beneficial effects of IL-22 through the induction of the IL-22 receptor during viral infection in the lung.
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12
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Fung KY, Nguyen PM, Putoczki T. The expanding role of innate lymphoid cells and their T-cell counterparts in gastrointestinal cancers. Mol Immunol 2019; 110:48-56. [DOI: 10.1016/j.molimm.2017.11.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 11/14/2017] [Indexed: 02/08/2023]
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13
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Gnirck AC, Wunderlich M, Becker M, Xiong T, Weinert E, Meyer-Schwesinger C, Dumoutier L, Renauld JC, Huber S, Panzer U, Turner JE. Endogenous IL-22 is dispensable for experimental glomerulonephritis. Am J Physiol Renal Physiol 2019; 316:F712-F722. [PMID: 30724106 DOI: 10.1152/ajprenal.00303.2018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
In recent years, the cytokine interleukin (IL)-22 attracted considerable attention due to its important immunoregulatory function in barrier tissues, such as the gut, lung, and skin. Although a regenerative role of IL-22 in renal tubular damage has been demonstrated, the role of IL-22 in the immunopathogenesis of glomerular injury is still unknown. Here, we demonstrate that the IL-22 receptor is expressed in the glomerular compartment of the kidney and that IL-22 expression increases in the renal cortex after induction of glomerular injury in a mouse model for crescentic glomerulonephritis (cGN, nephrotoxic nephritis). We identified γδ T cells and TH17 cells as major sources for IL-22 in the nephritic kidney. However, neither genetic or antibody-mediated deletion of IL-22 nor genetic deficiency in its endogenous inhibitor IL-22Rα2 (IL-22 binding protein) resulted in substantial phenotypic differences in mice with cGN with respect to crescent formation, tubulointerstitial damage, and kidney function impairment. Similarly, we did not observe significant differences between wild-type or IL-22-deficient mice in a mouse model of secondary focal and segmental glomerulosclerosis (adriamycin-induced nephropathy). As shown previously, we detected concomitant upregulation of IL-17A and IFN-γ production by T cells during the course of cGN, providing alternative cytokine pathways that mediate glomerular injury in this model. In conclusion, we show here that endogenous IL-22 expression is redundant in different forms of glomerular injury, indicating that the IL-22-directed therapies that are being tested in various human diseases might not affect the kidney in patients with glomerular disease.
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Affiliation(s)
- Ann-Christin Gnirck
- Third Department of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Malte Wunderlich
- Third Department of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Martina Becker
- Third Department of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Tingting Xiong
- Third Department of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Ella Weinert
- Third Department of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Catherine Meyer-Schwesinger
- Institut für Zelluläre und Integrative Physiologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg , Germany
| | - Laure Dumoutier
- de Duve Institute, Université Catholique de Louvain , Brussels , Belgium
| | - Jean-Christophe Renauld
- Ludwig Institute for Cancer Research, Brussels Branch, Brussels , Belgium
- de Duve Institute, Université Catholique de Louvain , Brussels , Belgium
| | - Samuel Huber
- First Department of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Ulf Panzer
- Third Department of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Jan-Eric Turner
- Third Department of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
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14
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Ito T, Hirose K, Nakajima H. Bidirectional roles of IL-22 in the pathogenesis of allergic airway inflammation. Allergol Int 2019; 68:4-8. [PMID: 30424940 DOI: 10.1016/j.alit.2018.10.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 09/27/2018] [Accepted: 10/08/2018] [Indexed: 02/07/2023] Open
Abstract
Asthma is the most prevalent allergic disease of the airway, which is characterized by eosinophilic inflammation, mucus hyperproduction, and airway hyper-responsiveness. Although these pathognomonic features are mainly mediated by antigen-specific Th2 cells and their cytokines, such as IL-4, IL-5, and IL-13, recent studies have revealed that other inflammatory cells, including Th17 cells and innate lymphoid cells (ILCs), also play a critical role in the pathogenesis of asthma. IL-22, one of the cytokines produced by Th17 cells and type 3 ILCs, has distinct functional properties, as IL-22 exclusively acts on non-hematopoietic cells including epithelial cells of mucosal surface and exhibits a broad range of action in regeneration and host protection. In accordance with the fact that lung epithelial cells play a critical role in the pathogenesis of asthma, we and other groups have shown that IL-22 is involved in the regulation of allergic airway inflammation. In this review, we discuss recent advances in the biology of IL-22 and its involvement in the pathogenesis of allergic airway inflammation.
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Affiliation(s)
- Takashi Ito
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan; Laboratory for Intestinal Ecosystem, RIKEN Center for Integrative Medical Sciences (IMS), Kanagawa, Japan
| | - Koichi Hirose
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan; Department of Rheumatology, School of Medicine, International University of Health and Welfare, Chiba, Japan
| | - Hiroshi Nakajima
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan.
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15
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Kundert F, Platen L, Iwakura T, Zhao Z, Marschner JA, Anders HJ. Immune mechanisms in the different phases of acute tubular necrosis. Kidney Res Clin Pract 2018; 37:185-196. [PMID: 30254843 PMCID: PMC6147180 DOI: 10.23876/j.krcp.2018.37.3.185] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 06/25/2018] [Indexed: 12/18/2022] Open
Abstract
Acute kidney injury is a clinical syndrome that can be caused by numerous diseases including acute tubular necrosis (ATN). ATN evolves in several phases, all of which are accompanied by different immune mechanisms as an integral component of the disease process. In the early injury phase, regulated necrosis, damage-associated molecular patterns, danger sensing, and neutrophil-driven sterile inflammation enhance each other and contribute to the crescendo of necroinflammation and tissue injury. In the late injury phase, renal dysfunction becomes clinically apparent, and M1 macrophage-driven sterile inflammation contributes to ongoing necroinflammation and renal dysfunction. In the recovery phase, M2-macrophages and anti-inflammatory mediators counteract the inflammatory process, and compensatory remnant nephron and cell hypertrophy promote an early functional recovery of renal function, while some tubules are still badly injured and necrotic material is removed by phagocytes. The resolution of inflammation is required to promote the intrinsic regenerative capacity of tubules to replace at least some of the necrotic cells. Several immune mechanisms support this wound-healing-like re-epithelialization process. Similar to wound healing, this response is associated with mesenchymal healing, with a profound immune cell contribution in terms of collagen production and secretion of profibrotic mediators. These and numerous other factors determine whether, in the chronic phase, persistent loss of nephrons and hyperfunction of remnant nephrons will result in stable renal function or progress to decline of renal function such as progressive chronic kidney disease.
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Affiliation(s)
- Fedor Kundert
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Louise Platen
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Takamasa Iwakura
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Zhibo Zhao
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Julian A Marschner
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Hans-Joachim Anders
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
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16
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Jiang R, Zhang GR, Zhu DM, Shi ZC, Liao CL, Fan QX, Wei KJ, Ji W. Molecular characterization and expression analysis of IL-22 and its two receptors genes in yellow catfish (Pelteobagrus filvidraco) in response to Edwardsiella ictaluri challenge. FISH & SHELLFISH IMMUNOLOGY 2018; 80:250-263. [PMID: 29886141 DOI: 10.1016/j.fsi.2018.06.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 05/30/2018] [Accepted: 06/06/2018] [Indexed: 06/08/2023]
Abstract
Interleukin (IL)-22, as a member of the interleukin (IL)-10 family, is an important mediator between the immune cells and epithelial tissues during infection and inflammation. This study reported the characterization and mRNA expression patterns of Pf_IL-22 gene and its cell surface-associated receptors Pf_IL-22RA1 and soluble Pf_IL-22RA2 genes in yellow catfish (Pelteobagrus filvidraco). The open reading frames (ORFs) of the Pf_IL-22, Pf_IL-22RA1 and Pf_IL-22RA2 genes were 546 bp, 1740 bp and 690 bp in length, encoding 181, 579 and 229 amino acids, respectively. Alignments of the deduced amino acid sequences present that the Pf_IL-22 has a conserved IL-10 family signature motif, and the Pf_IL-22RA1 and Pf_IL-22RA2 have two conserved fibronectin type-III domains. Quantitative real-time PCR (qPCR) analyses showed that the Pf_IL-22 and Pf_IL-22RA1 mRNAs were highly expressed in mucosal tissues such as the fin, gill, intestine, skin mucus and stomach, and were weakly expressed in the kidney, liver and head kidney of adult yellow catfish, indicating that the Pf_IL-22 transcripts may be mainly produced by mucosal immune cells/tissues in healthy yellow catfish. The mRNA expression levels of the Pf_IL-22RA2 gene were high in the muscle and liver, and were relatively low in the spleen and kidney. The mRNA expression levels of the Pf_IL-22 and its two receptor genes were significantly up-regulated in both mucosal tissues (gill, hindgut, and skin mucus) and systemic immune tissues (spleen, head kidney and blood) after Edwardsiella ictaluri challenge. These results indicated that the Pf_IL-22 and its two receptors genes might play an important role in the innate immune defense against bacterial invasion.
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Affiliation(s)
- Rui Jiang
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China; Freshwater Aquaculture Collaborative Innovation Centre of Hubei Province, Wuhan, 430070, PR China
| | - Gui-Rong Zhang
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China; Freshwater Aquaculture Collaborative Innovation Centre of Hubei Province, Wuhan, 430070, PR China
| | - Dong-Mei Zhu
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China; Freshwater Aquaculture Collaborative Innovation Centre of Hubei Province, Wuhan, 430070, PR China
| | - Ze-Chao Shi
- Freshwater Aquaculture Collaborative Innovation Centre of Hubei Province, Wuhan, 430070, PR China; Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 30223, PR China
| | - Chen-Lei Liao
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China; Freshwater Aquaculture Collaborative Innovation Centre of Hubei Province, Wuhan, 430070, PR China
| | - Qi-Xue Fan
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China; Freshwater Aquaculture Collaborative Innovation Centre of Hubei Province, Wuhan, 430070, PR China
| | - Kai-Jian Wei
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China; Freshwater Aquaculture Collaborative Innovation Centre of Hubei Province, Wuhan, 430070, PR China.
| | - Wei Ji
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China; Freshwater Aquaculture Collaborative Innovation Centre of Hubei Province, Wuhan, 430070, PR China.
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17
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Alabbas SY, Begun J, Florin TH, Oancea I. The role of IL-22 in the resolution of sterile and nonsterile inflammation. Clin Transl Immunology 2018; 7:e1017. [PMID: 29713472 PMCID: PMC5905349 DOI: 10.1002/cti2.1017] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 03/25/2018] [Accepted: 03/26/2018] [Indexed: 12/14/2022] Open
Abstract
In a broad sense, inflammation can be conveniently characterised by two phases: the first phase, which is a pro-inflammatory, has evolved to clear infection and/or injured tissue; and the second phase concerns regeneration of normal tissue and restitution of normal physiology. Innate immune cell-derived pro-inflammatory cytokines and chemokines activate and recruit nonresident immune cells to the site of infection, thereby amplifying the inflammatory responses to clear infection or injury. This phase is followed by a cytokine milieu that promotes tissue regeneration. There is no absolute temporal distinction between these two phases, and cytokines may have dual pleiotropic effects depending on the timing of release, inflammatory microenvironment or concentrations. IL-22 is a cytokine with reported pro- and anti-inflammatory roles; in this review, we contend that this protein has primarily a function in restitution of normal tissue and physiology.
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Affiliation(s)
- Saleh Y Alabbas
- Faculty of MedicineSchool of Clinical MedicineThe University of QueenslandBrisbaneQLDAustralia
- Chronic Disease Biology and Care Group at Mater Research InstituteTranslational Research InstituteThe University of QueenslandBrisbaneQLDAustralia
| | - Jakob Begun
- Chronic Disease Biology and Care Group at Mater Research InstituteTranslational Research InstituteThe University of QueenslandBrisbaneQLDAustralia
| | - Timothy H Florin
- Chronic Disease Biology and Care Group at Mater Research InstituteTranslational Research InstituteThe University of QueenslandBrisbaneQLDAustralia
| | - Iulia Oancea
- Faculty of MedicineSchool of Clinical MedicineThe University of QueenslandBrisbaneQLDAustralia
- Chronic Disease Biology and Care Group at Mater Research InstituteTranslational Research InstituteThe University of QueenslandBrisbaneQLDAustralia
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18
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Dambaeva S, Schneiderman S, Jaiswal MK, Agrawal V, Katara GK, Gilman-Sachs A, Hirsch E, Beaman KD. Interleukin 22 prevents lipopolysaccharide- induced preterm labor in mice. Biol Reprod 2018; 98:299-308. [PMID: 29315356 PMCID: PMC6669419 DOI: 10.1093/biolre/iox182] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 11/29/2017] [Accepted: 12/27/2017] [Indexed: 12/26/2022] Open
Abstract
Preterm birth is widespread and causes 35% of all neonatal deaths. Infants who survive face potential long-term complications. A major contributing factor of preterm birth is infection. We investigated the role of interleukin 22 (IL22) as a potential clinically relevant cytokine during gestational infection. IL22 is an effector molecule secreted by immune cells. While the expression of IL22 was reported in normal nonpregnant endometrium and early pregnancy decidua, little is known about uterine IL22 expression during mid or late gestational stages of pregnancy. Since IL22 has been shown to be an essential mediator in epithelial regeneration and wound repair, we investigated the potential role of IL22 during defense against an inflammatory response at the maternal-fetal interface. We used a well-established model to study infection and infection-associated inflammation during preterm birth in the mouse. We have shown that IL22 is upregulated to respond to an intrauterine lipopolysaccharide administration and plays an important role in controlling the risk of inflammation-induced preterm birth. This paper proposes IL22 as a treatment method to combat infection and prevent preterm birth in susceptible patients.
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Affiliation(s)
- Svetlana Dambaeva
- Department of Microbiology and Immunology, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
| | - Sylvia Schneiderman
- Department of Microbiology and Immunology, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
| | - Mukesh K Jaiswal
- Department of Microbiology and Immunology, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
| | - Varkha Agrawal
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, Illinois, USA
| | - Gajendra K Katara
- Department of Microbiology and Immunology, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
| | - Alice Gilman-Sachs
- Department of Microbiology and Immunology, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
| | - Emmet Hirsch
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, Illinois, USA
- Department of Obstetrics and Gynecology, Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Kenneth D Beaman
- Department of Microbiology and Immunology, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
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19
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Bao A, Che KF, Bozinovski S, Ji J, Gregory JA, Kumlien Georén S, Adner M, Cardell LO, Lindén A. Recombinant human IL-26 facilitates the innate immune response to endotoxin in the bronchoalveolar space of mice in vivo. PLoS One 2017; 12:e0188909. [PMID: 29206862 PMCID: PMC5716532 DOI: 10.1371/journal.pone.0188909] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 11/15/2017] [Indexed: 12/13/2022] Open
Abstract
Interleukin (IL)-26 is released in response to bacterial endotoxin (LPS) in the bronchoalveolar space of humans in vivo and it may potentiate neutrophil chemotaxis by enhanced IL-26 receptor stimulation. However, the effects of extracellular IL-26 protein on the innate immune response in the lungs in vivo remain unknown. Here, we characterized these effects of IL-26 on a wide range of aspects of the innate immune response to LPS in different compartments of the lungs in vivo over time. We administrated recombinant human (rh) IL-26 protein in the bronchoalveolar space using intranasal instillation in a mouse in vivo model, with and without prior instillation of LPS. We verified gene expression of the IL-26 receptor complex in mouse lungs and observed that, after instillation of LPS, rhIL-26 increases the phosphorylation of STAT3, a signaling molecule of the IL-26 receptor complex. We also observed that rhIL-26 exerted additional stimulatory and inhibitory actions that are compartment- and time-dependent, resulting in alterations of cytokines, proteinases, tissue inflammation and the accumulation of innate effector cells. Without the prior instillation of LPS, rhIL-26 exerted time-dependent effects on total gelatinase activity but few other effects. Most important, after instillation of LPS, rhIL-26 cleared inflammatory cells from local tissue and increased the accumulation of innate effector cells in the bronchoalveolar space. Tentatively, rhIL-26 may facilitate the innate immune response towards the bronchoalveolar space in vivo and represents a potential target for therapy in lung disorders involving the innate immune response.
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Affiliation(s)
- Aihua Bao
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Respiratory Medicine, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Karlhans Fru Che
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Steven Bozinovski
- RMIT University, School of Health and Biomedical Sciences, Bundoora, Victoria, Australia
| | - Jie Ji
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Joshua A Gregory
- Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden.,Unit for Experimental Asthma and Allergy Research, Institute of Environmental Medicine, Stockholm, Sweden
| | - Susanna Kumlien Georén
- Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden.,Division of ENT Diseases, CLINTEC, Karolinska Institutet, Stockholm, Sweden
| | - Mikael Adner
- Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden.,Unit for Experimental Asthma and Allergy Research, Institute of Environmental Medicine, Stockholm, Sweden
| | - Lars-Olaf Cardell
- Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden.,Division of ENT Diseases, CLINTEC, Karolinska Institutet, Stockholm, Sweden
| | - Anders Lindén
- Unit for Lung and Airway Research, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Lung Allergy Clinic, Karolinska University Hospital, Stockholm, Sweden
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20
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Bachmann M, Meissner C, Pfeilschifter J, Mühl H. Cooperation between the bacterial-derived short-chain fatty acid butyrate and interleukin-22 detected in human Caco2 colon epithelial/carcinoma cells. Biofactors 2017; 43:283-292. [PMID: 27801948 DOI: 10.1002/biof.1341] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 09/28/2016] [Accepted: 10/04/2016] [Indexed: 12/29/2022]
Abstract
By generating biologically active factors luminal microbiota shape the intestinal micro-milieu thereby regulating pathological processes such as inflammation and carcinogenesis. Preclinical data suggest that bacterial-derived butyrate and the signal transducer and activator of transcription (STAT)-3 activating cytokine interleukin (IL)-22 display concordant protective properties at the inflamed colonic epithelium. Herein, biochemical cooperation between the short-chain fatty acid butyrate and IL-22 was investigated by focusing on human Caco2 colon epithelial/carcinoma cells. We report that physiological levels of butyrate enhance IL-22 signaling thereby enforcing expression of the prototypic STAT3-downstrean target genes α1-antichymotrypsin and suppressor of cytokine signaling (SOCS)-3. A dual mode of butyrate action on the IL-22/STAT3 axis was identified. Butyrate acted by upregulating IL-22R1, the decisive chain of the heterodimeric IL-22 receptor, and, independent from that, has the potential to directly amplify STAT3-mediated gene activation as detected by chromatin immunoprecipitation analysis of STAT3 binding to the SOCS3 promoter. Since trichostatin A acted similarly, inhibition of histone deacetylases is likely at the root of these butyrate biological properties. The mutual benefit gained from interactions between the host and commensal intestinal bacteria-derived factors is an expanding field of research beginning to affect clinical practice. Data presented herein propose a supportive and fine-tuning role for butyrate in IL-22 signaling that might be therapeutically exploited by local butyrate administration or by increasing its bacterial production in the context of a fiber-rich diet. © 2016 BioFactors, 43(2):283-292, 2017.
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Affiliation(s)
- Malte Bachmann
- Pharmazentrum Frankfurt/ZAFES, University Hospital Goethe-University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Carlotta Meissner
- Pharmazentrum Frankfurt/ZAFES, University Hospital Goethe-University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Josef Pfeilschifter
- Pharmazentrum Frankfurt/ZAFES, University Hospital Goethe-University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Heiko Mühl
- Pharmazentrum Frankfurt/ZAFES, University Hospital Goethe-University Frankfurt, 60590 Frankfurt am Main, Germany
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21
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Fumagalli S, Torri A, Papagna A, Citterio S, Mainoldi F, Foti M. IL-22 is rapidly induced by Pathogen Recognition Receptors Stimulation in Bone-Marrow-derived Dendritic Cells in the Absence of IL-23. Sci Rep 2016; 6:33900. [PMID: 27652524 PMCID: PMC5031995 DOI: 10.1038/srep33900] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 09/04/2016] [Indexed: 02/08/2023] Open
Abstract
In vertebrates, microorganisms are recognized by pathogen recognition receptors (PRRs). Exposure of immune cells to the ligands of these receptors activates intracellular signaling cascades that rapidly induce the expression of a variety of genes. Within these genes, the cytokines family plays a crucial function because of its role in adaptive immunity induction and in tissue-specific functional regulation, such as tissue repair and tissue homeostasis during steady state conditions. Within the myeloid compartment, dendritic cells (DCs) release a variety of inflammatory cytokines in response to microbes. In this study, we show that BMDCs release IL-22 directly upon PRRs activation without the need of IL-23 signaling as reported for other IL22-producing cells. Moreover, we demonstrate that cytokine IL-22 is rapidly released in a cell-specific manner as macrophages are not able to produce IL-22 through the same PRRs system. In addition, we characterize the intracellular signaling cascade required for IL-22 release in BMDCs. Myd88, MEK1/2, NFkb and AhR, but not p38, NFAT, and RORgt, were found to be involved in IL-22 regulation in DCs. Our study suggests that BMDCs possess a unique intracellular molecular plasticity which, once activated, directs different BMDCs functions in a cell-specific manner.
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Affiliation(s)
- Silvia Fumagalli
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, 20126, Italy
| | - Anna Torri
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, 20126, Italy
| | - Angela Papagna
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, 20126, Italy
| | - Stefania Citterio
- Department of Biotechnology and Bioscience, University of Milano-Bicocca, Milan, 20126, Italy
| | - Federica Mainoldi
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, 20126, Italy
| | - Maria Foti
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, 20126, Italy
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22
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He X, Li H, Chen Y, Chen A, Shan K, Chen J, Zhao H, Zhang X, Cai T. The Effects of IL-22 on the Inflammatory Mediator Production, Proliferation, and Barrier Function of HUVECs. Inflammation 2016; 39:1099-107. [PMID: 27059499 DOI: 10.1007/s10753-016-0341-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The aim of this study was to investigate the effects of interleukin (IL)-22 on proliferation function and inflammatory mediator production and barrier function of human umbilical vein endothelial cells (HUVECs). The expression of mRNA was detected by RT-PCR. The proliferation ability of cells was evaluated using a cell counting kit assay. Real-time quantitative PCR and Western blot were used to detect the expression of inflammatory mediators. The endothelial barrier permeability was assessed by measuring permeability to FITC-labeled dextran. The distribution of occludin was detected by immunofluorescence. IL-22R1 mRNA expression was noted in HUVECs. IL-22 could enhance the proliferation ability of HUVECs and suppress lipopolysaccharide (LPS)-induced proliferation inhibition in these cells. IL-22 also enhanced the production of CCL2 and CCL20 by HUVECs. Besides, IL-22 could improve barrier function and decrease LPS-induced increased cellular permeability and inhibit the LPS-induced destruction of occludin in HUVECs. IL-22 may play a protective role in the development of vasculitis.
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Affiliation(s)
- Xian He
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Hui Li
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Ying Chen
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Aijun Chen
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Kui Shan
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Jin Chen
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Hengguang Zhao
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Xiaojiao Zhang
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Tao Cai
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China.
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23
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Morrison PJ, Ballantyne SJ, Macdonald SJ, Moore JWJ, Jenkins D, Wright JF, Fouser LA, Kullberg MC. Differential Requirements for IL-17A and IL-22 in Cecal versus Colonic Inflammation Induced by Helicobacter hepaticus. THE AMERICAN JOURNAL OF PATHOLOGY 2015; 185:3290-303. [PMID: 26458765 PMCID: PMC4729236 DOI: 10.1016/j.ajpath.2015.08.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 07/24/2015] [Accepted: 08/06/2015] [Indexed: 12/19/2022]
Abstract
Type 17 helper T-cell cytokines have been implicated in the pathogenesis of inflammatory bowel disease, a chronic condition affecting the gastrointestinal tract, but information regarding their contribution to pathology in different regions of the gut is lacking. By using a murine model of bacteria-induced typhlocolitis, we investigated the role of IL-17A, IL-17F, and IL-22 in cecal versus colonic inflammation. Cecal, but not colonic, pathology in C57BL/6 mice inoculated with Helicobacter hepaticus plus anti-IL-10 receptor (IL-10R) monoclonal antibody was exacerbated by co-administration of anti-IL-17A monoclonal antibody, suggesting a disease-protective role for IL-17A in the cecum. In contrast, anti-IL-17F had no effect on H. hepaticus-induced intestinal pathology. Neutralization of IL-22 prevented the development of colonic, but not cecal, inflammation in H. hepaticus-infected anti-IL-10R-treated mice, demonstrating a pathogenic role for IL-22 in the colon. Analysis of transcript levels revealed differential expression of IL-22R, IL-22 binding protein, and IL-23R between cecum and colon, a finding that may help explain why these tissues respond differently after anti-IL-22 treatment. Analysis of microarray data from healthy human intestine further revealed significant differences in cytokine receptor transcript levels (including IL-22RA1 and IL-23R) in distinct parts of the human gut. Together, our findings demonstrate that individual type 17 helper T-cell cytokines can have proinflammatory or anti-inflammatory effects in different regions of the intestine, an observation that may have implications for interventions against human inflammatory bowel disease.
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Affiliation(s)
- Peter J Morrison
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom
| | - Sarah J Ballantyne
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom
| | - Sandy J Macdonald
- Centre for Chronic Diseases and Disorders, Department of Biology, University of York, York, United Kingdom
| | - John W J Moore
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom
| | - David Jenkins
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom
| | - Jill F Wright
- Development Operations, Pfizer Biotherapeutics Research and Development, Cambridge, Massachusetts
| | - Lynette A Fouser
- Development Operations, Pfizer Biotherapeutics Research and Development, Cambridge, Massachusetts
| | - Marika C Kullberg
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom.
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24
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Nikoopour E, Bellemore SM, Singh B. IL-22, cell regeneration and autoimmunity. Cytokine 2015; 74:35-42. [PMID: 25467639 DOI: 10.1016/j.cyto.2014.09.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 09/18/2014] [Accepted: 09/20/2014] [Indexed: 12/16/2022]
Abstract
IL-22 as a cytokine is described with opposing pro-inflammatory and anti-inflammatory functions. Cell regeneration, tissue remodelling and balance between commensal bacteria in the gut and host immune system are considered as anti-inflammatory features of IL-22, whereas production of IL-22 from Th17 cells links this cytokine to pro-inflammatory pathways. Th17 cells and group 3 innate lymphoid cells (ILC3) are two major producers of IL-22 and both cell types express ROR-γt and Aryl hydrocarbon receptor (AhR) transcription factors. Typically, the immune system cells are the main producers of IL-22. However, targets of this cytokine are mostly non-hematopoietic cells such as hepatocytes, keratinocytes, and epithelial cells of lung and intestine. Association of IL-22 with other cytokines or transcription factors in different cell types might explain its contrasting role in health and disease. In this review we discuss the regulation of IL-22 production by AhR- and IL-23-driven pathways. A clear understanding of the biology of IL-22 will provide new opportunities for its application to improve human health involving many debilitating conditions.
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Affiliation(s)
- Enayat Nikoopour
- Centre for Human Immunology, Department of Microbiology and Immunology, Robarts Research Institute, University of Western Ontario, London, Ontario, Canada
| | - Stacey M Bellemore
- Centre for Human Immunology, Department of Microbiology and Immunology, Robarts Research Institute, University of Western Ontario, London, Ontario, Canada
| | - Bhagirath Singh
- Centre for Human Immunology, Department of Microbiology and Immunology, Robarts Research Institute, University of Western Ontario, London, Ontario, Canada.
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Weidenbusch M, Rodler S, Anders HJ. Interleukin-22 in kidney injury and regeneration. Am J Physiol Renal Physiol 2015; 308:F1041-6. [PMID: 25740595 DOI: 10.1152/ajprenal.00005.2015] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 03/02/2015] [Indexed: 12/20/2022] Open
Abstract
Interleukins have become well-known regulators of innate and adaptive immunity-related tissue inflammation. Recently, IL-22 has gained a lot of interest for its unique functions in maintaining and regaining epithelial integrity. IL-22 is exclusively secreted by different immune cell subsets, while IL-22 receptors are mainly expressed by epithelial cells. As the kidney is largely an epithelial organ, the functional role of IL-22 in the kidney deserves to be explored in detail. Here, we briefly summarize the key features of IL-22 biology and review the available data on its expression and functional roles in kidney injury and kidney regeneration. Furthermore, we provide suggestions on how to explore this evolving field in the future.
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Affiliation(s)
- Marc Weidenbusch
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität, München, Germany
| | - Severin Rodler
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität, München, Germany
| | - Hans-Joachim Anders
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität, München, Germany
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Abstract
Interleukin-22 (IL-22) is a recently described IL-10 family cytokine that is produced by T helper (Th) 17 cells, γδ T cells, NKT cells, and newly described innate lymphoid cells (ILCs). Knowledge of IL-22 biology has evolved rapidly since its discovery in 2000, and a role for IL-22 has been identified in numerous tissues, including the intestines, lung, liver, kidney, thymus, pancreas, and skin. IL-22 primarily targets nonhematopoietic epithelial and stromal cells, where it can promote proliferation and play a role in tissue regeneration. In addition, IL-22 regulates host defense at barrier surfaces. However, IL-22 has also been linked to several conditions involving inflammatory tissue pathology. In this review, we assess the current understanding of this cytokine, including its physiologic and pathologic effects on epithelial cell function.
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Ahlfors H, Morrison PJ, Duarte JH, Li Y, Biro J, Tolaini M, Di Meglio P, Potocnik AJ, Stockinger B. IL-22 fate reporter reveals origin and control of IL-22 production in homeostasis and infection. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2014; 193:4602-13. [PMID: 25261485 PMCID: PMC4201943 DOI: 10.4049/jimmunol.1401244] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
IL-22 is a cytokine that regulates tissue homeostasis at barrier surfaces. A variety of IL-22-producing cell types is known, but identification on the single-cell level remains difficult. Therefore, we generated a fate reporter mouse that would allow the identification of IL-22-producing cells and their fate mapping in vivo. To trace IL-22-expressing cells, a sequence encoding Cre recombinase was cloned into the Il22 locus, and IL22(Cre) mice were crossed with reporter mice expressing enhanced yellow fluorescence protein (eYFP) under control of the endogenous Rosa26 promoter. In IL22(Cre)R26R(eYFP) mice, the fluorescent reporter permanently labels cells that have switched on Il22 expression, irrespective of cytokine production. Despite a degree of underreporting, eYFP expression was detectable in nonimmune mice and restricted to group 3 innate lymphoid cells (ILC3) in the gut and γδ T cells in skin or lung. Upon skin challenge with imiquimod, eYFP(+) γδ and CD4 T cells expanded in the skin. Infection with Citrobacter rodentium initially was controlled by ILC3, followed by expansion of eYFP(+) CD4 T cells, which were induced in innate lymphoid follicles in the colon. No eYFP expression was detected in small intestinal Th17 cells, and they did not expand in the immune response. Colonic eYFP(+) CD4 T cells exhibited plasticity during infection with expression of additional cytokines, in contrast to ILC3, which remained largely stable. Single-cell quantitative PCR analysis of eYFP(+) CD4 T cells confirmed their heterogeneity, suggesting that IL-22 expression is not confined to particular subsets or a dedicated Th22 subset.
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Affiliation(s)
- Helena Ahlfors
- Division of Molecular Immunology, Medical Research Council National Institute for Medical Research, London NW7 1AA, United Kingdom
| | - Peter J Morrison
- Division of Molecular Immunology, Medical Research Council National Institute for Medical Research, London NW7 1AA, United Kingdom
| | - João H Duarte
- Division of Molecular Immunology, Medical Research Council National Institute for Medical Research, London NW7 1AA, United Kingdom
| | - Ying Li
- Division of Molecular Immunology, Medical Research Council National Institute for Medical Research, London NW7 1AA, United Kingdom
| | - Judit Biro
- Division of Molecular Immunology, Medical Research Council National Institute for Medical Research, London NW7 1AA, United Kingdom
| | - Mauro Tolaini
- Division of Molecular Immunology, Medical Research Council National Institute for Medical Research, London NW7 1AA, United Kingdom
| | - Paola Di Meglio
- Division of Molecular Immunology, Medical Research Council National Institute for Medical Research, London NW7 1AA, United Kingdom
| | - Alexandre J Potocnik
- Division of Molecular Immunology, Medical Research Council National Institute for Medical Research, London NW7 1AA, United Kingdom
| | - Brigitta Stockinger
- Division of Molecular Immunology, Medical Research Council National Institute for Medical Research, London NW7 1AA, United Kingdom
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Yang X, Zheng SG. Interleukin-22: a likely target for treatment of autoimmune diseases. Autoimmun Rev 2014; 13:615-20. [PMID: 24418299 PMCID: PMC3966954 DOI: 10.1016/j.autrev.2013.11.008] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 11/11/2013] [Indexed: 12/30/2022]
Abstract
Interleukin-22 (IL-22) is a member of IL-10 family cytokines that is produced by many different types of lymphocytes including both those of the innate and adaptive immune systems. This includes activated T cells, most notably Th17 and Th22 cells, and NK cells, γδ T cells, LTi cells and LTi-like cells. IL-22 mediates its effects via the IL-22-IL-22R complex and subsequent Janus kinase-signal transducer and activators of transcription (JAK-STAT) signaling pathway. Recently accumulated evidence has indicated that IL-22 also plays an important role in the pathogenesis of many autoimmune diseases. In this review, we discuss the recent findings and advancement of the role for IL-22 in several autoimmune diseases, such as psoriasis, rheumatoid arthritis (RA), hepatitis, graft versus host disease (GHVD) and allergic diseases, implicating that target IL-22 may have a therapeutic potential in those autoimmune diseases.
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Affiliation(s)
- Xuyan Yang
- Department of Rheumatology, Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, PR China.
| | - Song Guo Zheng
- Division of Rheumatology, Department of Medicine at Penn State University Hershey College of Medicine, Hershey 17033, USA.
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29
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Kara EE, Comerford I, Fenix KA, Bastow CR, Gregor CE, McKenzie DR, McColl SR. Tailored immune responses: novel effector helper T cell subsets in protective immunity. PLoS Pathog 2014; 10:e1003905. [PMID: 24586147 PMCID: PMC3930558 DOI: 10.1371/journal.ppat.1003905] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Differentiation of naïve CD4⁺ cells into functionally distinct effector helper T cell subsets, characterised by distinct "cytokine signatures," is a cardinal strategy employed by the mammalian immune system to efficiently deal with the rapidly evolving array of pathogenic microorganisms encountered by the host. Since the T(H)1/T(H)2 paradigm was first described by Mosmann and Coffman, research in the field of helper T cell biology has grown exponentially with seven functionally unique subsets having now been described. In this review, recent insights into the molecular mechanisms that govern differentiation and function of effector helper T cell subsets will be discussed in the context of microbial infections, with a focus on how these different helper T cell subsets orchestrate immune responses tailored to combat the nature of the pathogenic threat encountered.
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Affiliation(s)
- Ervin E. Kara
- School of Molecular & Biomedical Science, The University of Adelaide, Adelaide, South Australia, Australia
| | - Iain Comerford
- School of Molecular & Biomedical Science, The University of Adelaide, Adelaide, South Australia, Australia
| | - Kevin A. Fenix
- School of Molecular & Biomedical Science, The University of Adelaide, Adelaide, South Australia, Australia
| | - Cameron R. Bastow
- School of Molecular & Biomedical Science, The University of Adelaide, Adelaide, South Australia, Australia
| | - Carly E. Gregor
- School of Molecular & Biomedical Science, The University of Adelaide, Adelaide, South Australia, Australia
| | - Duncan R. McKenzie
- School of Molecular & Biomedical Science, The University of Adelaide, Adelaide, South Australia, Australia
| | - Shaun R. McColl
- School of Molecular & Biomedical Science, The University of Adelaide, Adelaide, South Australia, Australia
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30
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Yang X, Zheng SG. Interleukin-22: a likely target for treatment of autoimmune diseases. Autoimmun Rev 2014. [PMID: 24418299 DOI: 10.1016/j.autrev] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Interleukin-22 (IL-22) is a member of IL-10 family cytokines that is produced by many different types of lymphocytes including both those of the innate and adaptive immune systems. This includes activated T cells, most notably Th17 and Th22 cells, and NK cells, γδ T cells, LTi cells and LTi-like cells. IL-22 mediates its effects via the IL-22-IL-22R complex and subsequent Janus kinase-signal transducer and activators of transcription (JAK-STAT) signaling pathway. Recently accumulated evidence has indicated that IL-22 also plays an important role in the pathogenesis of many autoimmune diseases. In this review, we discuss the recent findings and advancement of the role for IL-22 in several autoimmune diseases, such as psoriasis, rheumatoid arthritis (RA), hepatitis, graft versus host disease (GHVD) and allergic diseases, implicating that target IL-22 may have a therapeutic potential in those autoimmune diseases.
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Affiliation(s)
- Xuyan Yang
- Department of Rheumatology, Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, PR China.
| | - Song Guo Zheng
- Division of Rheumatology, Department of Medicine at Penn State University Hershey College of Medicine, Hershey 17033, USA.
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31
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Jia L, Wu C. The biology and functions of Th22 cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 841:209-30. [PMID: 25261209 DOI: 10.1007/978-94-017-9487-9_8] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
T helper (Th) cells develop from naïve CD4(+) T cells under lineage-specific culture conditions and are nominated by their lineage-specific cytokines. Th22 cells, new players in adoptive immune responses, are identified by the production of interleukin (IL)-22. Plenty of observations are obtained over the past few years indicating that IL-22 is produced by activated T cells including Th22 cells, Th17 cells, Th1 cells, innate lymphoid cells and some nonlymphocytes. IL-22 functions synergistically with IL-17 or tumor necrosis factor (TNF), however, it plays different roles by IL-22/IL-22 receptor signal transductions in pathologic processes, including inflammations, autoimmunity, tumor, and digestive organs damages. In this chapter, we focus on the biology of IL-22, the generation and regulation of Th22 cells, the possible signal pathways that involved in the functions of Th22 cells, as well as the relationship between Th22 cells and various diseases.
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Affiliation(s)
- Lei Jia
- Key Laboratory of Tropical Disease Control Research of Ministry of Education, Zhongshan School of Medicine, Institute of Immunology, Sun Yat-Sen University, 74th, Zhongshan 2nd Road, Guangzhou, 510080, China
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Couturier M, Lamarthée B, Arbez J, Renauld JC, Bossard C, Malard F, Bonnefoy F, Mohty M, Perruche S, Tiberghien P, Saas P, Gaugler B. IL-22 deficiency in donor T cells attenuates murine acute graft-versus-host disease mortality while sparing the graft-versus-leukemia effect. Leukemia 2013; 27:1527-37. [PMID: 23399894 DOI: 10.1038/leu.2013.39] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 01/20/2013] [Accepted: 02/06/2013] [Indexed: 12/24/2022]
Abstract
Acute graft-versus-host disease (aGVHD) remains a major complication following allogeneic hematopoietic cell transplantation (allo-HCT), limiting the success of this therapy. Many proinflammatory cytokines secreted following the conditioning regimen have been linked to aGVHD initiation. Interleukin-22 (IL-22) is a cytokine related to IL-10 for its structure and is secreted by T helper type 17 (TH17) cells and innate immune cells. Given the paradoxical role of IL-22 in inflammation with both protective or proinflammatory functions, we investigated whether IL-22 could have a role in aGVHD pathophysiology in a mouse allo-HCT model. In this study, we show that IL-22 deficiency in donor T cells can decrease the severity of aGVHD, while limiting systemic and local inflammation in aGVHD target organs. In addition, we found that Foxp3+ regulatory T cells (Treg cells) were increased in recipient mice that received IL-22-deficient T cells, suggesting that Treg were involved in the reduced severity of GVHD. Finally, we found that the graft-versus-leukemia (GVL) effect mediated by donor T cells was preserved in the absence of IL-22. Overall, these data suggest that targeting of IL-22 may represent a valid approach towards decreasing aGVHD severity after allo-HCT while preserving the GVL effect.
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33
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Leung JM, Loke P. A role for IL-22 in the relationship between intestinal helminths, gut microbiota and mucosal immunity. Int J Parasitol 2013; 43:253-7. [PMID: 23178750 PMCID: PMC3955947 DOI: 10.1016/j.ijpara.2012.10.015] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 10/23/2012] [Accepted: 10/24/2012] [Indexed: 12/22/2022]
Abstract
The intestinal tract is home to nematodes as well as commensal bacteria (microbiota), which have coevolved with the mammalian host. The mucosal immune system must balance between an appropriate response to dangerous pathogens and an inappropriate response to commensal microbiota that may breach the epithelial barrier, in order to maintain intestinal homeostasis. IL-22 has been shown to play a critical role in maintaining barrier homeostasis against intestinal pathogens and commensal bacteria. Here we review the advances in our understanding of the role of IL-22 in helminth infections, as well as in response to commensal and pathogenic bacteria of the intestinal tract. We then consider the relationship between intestinal helminths and gut microbiota and hypothesize that this relationship may explain how helminths may improve symptoms of inflammatory bowel diseases. We propose that by inducing an immune response that includes IL-22, intestinal helminths may enhance the mucosal barrier function of the intestinal epithelium. This may restore the mucosal microbiota populations from dysbiosis associated with colitis and improve intestinal homeostasis.
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Affiliation(s)
| | - P’ng Loke
- Department of Microbiology, New York University, New York, NY, USA
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34
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Hanash AM, Dudakov JA, Hua G, O'Connor MH, Young LF, Singer NV, West ML, Jenq RR, Holland AM, Kappel LW, Ghosh A, Tsai JJ, Rao UK, Yim NL, Smith OM, Velardi E, Hawryluk EB, Murphy GF, Liu C, Fouser LA, Kolesnick R, Blazar BR, van den Brink MRM. Interleukin-22 protects intestinal stem cells from immune-mediated tissue damage and regulates sensitivity to graft versus host disease. Immunity 2012; 37:339-50. [PMID: 22921121 PMCID: PMC3477611 DOI: 10.1016/j.immuni.2012.05.028] [Citation(s) in RCA: 455] [Impact Index Per Article: 37.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 04/26/2012] [Accepted: 05/15/2012] [Indexed: 12/30/2022]
Abstract
Little is known about the maintenance of intestinal stem cells (ISCs) and progenitors during immune-mediated tissue damage or about the susceptibility of transplant recipients to tissue damage mediated by the donor immune system during graft versus host disease (GVHD). We demonstrate here that deficiency of recipient-derived IL-22 increased acute GVHD tissue damage and mortality, that ISCs were eliminated during GVHD, and that ISCs as well as their downstream progenitors expressed the IL-22 receptor. Intestinal IL-22 was produced after bone marrow transplant by IL-23-responsive innate lymphoid cells (ILCs) from the transplant recipients, and intestinal IL-22 increased in response to pretransplant conditioning. However, ILC frequency and IL-22 amounts were decreased by GVHD. Recipient IL-22 deficiency led to increased crypt apoptosis, depletion of ISCs, and loss of epithelial integrity. Our findings reveal IL-22 as a critical regulator of tissue sensitivity to GVHD and a protective factor for ISCs during inflammatory intestinal damage.
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Affiliation(s)
- Alan M Hanash
- Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.
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35
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Shui JW, Larange A, Kim G, Vela JL, Zahner S, Cheroutre H, Kronenberg M. HVEM signalling at mucosal barriers provides host defence against pathogenic bacteria. Nature 2012; 488:222-5. [PMID: 22801499 PMCID: PMC3477500 DOI: 10.1038/nature11242] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Accepted: 05/18/2012] [Indexed: 12/23/2022]
Abstract
The herpes virus entry mediator (HVEM), a member of the tumour-necrosis factor receptor family, has diverse functions, augmenting or inhibiting the immune response. HVEM was recently reported as a colitis risk locus in patients, and in a mouse model of colitis we demonstrated an anti-inflammatory role for HVEM, but its mechanism of action in the mucosal immune system was unknown. Here we report an important role for epithelial HVEM in innate mucosal defence against pathogenic bacteria. HVEM enhances immune responses by NF-κB-inducing kinase-dependent Stat3 activation, which promotes the epithelial expression of genes important for immunity. During intestinal Citrobacter rodentium infection, a mouse model for enteropathogenic Escherichia coli infection, Hvem−/− mice showed decreased Stat3 activation, impaired responses in the colon, higher bacterial burdens and increased mortality. We identified the immunoglobulin superfamily molecule CD160 (refs 7 and 8), expressed predominantly by innate-like intraepithelial lymphocytes, as the ligand engaging epithelial HVEM for host protection. Likewise, in pulmonary Streptococcus pneumoniae infection, HVEM is also required for host defence. Our results pinpoint HVEM as an important orchestrator of mucosal immunity, integrating signals from innate lymphocytes to induce optimal epithelial Stat3 activation, which indicates that targeting HVEM with agonists could improve host defence.
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MESH Headings
- Animals
- Antigens, CD/immunology
- Antigens, CD/metabolism
- Bacterial Load
- Cell Line
- Citrobacter rodentium/immunology
- Citrobacter rodentium/pathogenicity
- Disease Models, Animal
- Enterobacteriaceae Infections/immunology
- Enterobacteriaceae Infections/microbiology
- Enteropathogenic Escherichia coli
- Epithelial Cells/immunology
- Epithelial Cells/metabolism
- Escherichia coli Infections
- GPI-Linked Proteins/immunology
- GPI-Linked Proteins/metabolism
- Immunity, Mucosal/immunology
- Intestines/immunology
- Intestines/microbiology
- Ligands
- Lung/immunology
- Lung/microbiology
- Lymphocytes/immunology
- Lymphocytes/metabolism
- Mice
- Mice, Inbred C57BL
- Mucous Membrane/immunology
- Mucous Membrane/metabolism
- Mucous Membrane/microbiology
- Pneumococcal Infections/immunology
- Pneumococcal Infections/microbiology
- Protein Serine-Threonine Kinases/metabolism
- Receptors, Immunologic/immunology
- Receptors, Immunologic/metabolism
- Receptors, Tumor Necrosis Factor, Member 14/deficiency
- Receptors, Tumor Necrosis Factor, Member 14/genetics
- Receptors, Tumor Necrosis Factor, Member 14/immunology
- Receptors, Tumor Necrosis Factor, Member 14/metabolism
- STAT3 Transcription Factor/metabolism
- Signal Transduction
- Streptococcus pneumoniae/immunology
- Survival Rate
- NF-kappaB-Inducing Kinase
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Affiliation(s)
- Jr-Wen Shui
- Division of Developmental Immunology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, California 92037, USA
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Cusick MF, Libbey JE, Fujinami RS, Eckels DD. In vitro antigen-specific induction of IL-22 in human subjects that resolved HCV infection. Future Virol 2012. [PMID: 23185211 DOI: 10.2217/fvl.12.58] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
AIMS: To determine if in vitro production of IL-22 and IL-17 correlated with resolution of HCV infection. MATERIALS #ENTITYSTARTX00026; METHODS: Human peripheral blood cells isolated from a well-defined cohort of resolved and chronic HCV-infected subjects were used to measure HCV-, influenza- and mitogen-activated T-cell proliferation. In addition, IL-22 and IL-17 production was measured via ELISAs and flow cytometry. RESULTS: Resolved HCV subjects had a significantly higher T-cell proliferative response to recombinant NS3 protein compared with chronic HCV subjects. Resolved subjects had a dose-dependent IL-22 response to recombinant NS3 compared with chronic HCV subjects. CONCLUSION: IL-22 production is associated with antigen-specific induction of CD4 (+) T cells in individuals that resolved HCV infection, suggesting a potential role for IL-22 in HCV clearance.
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Affiliation(s)
- Matthew F Cusick
- Department of Pathology, University of Utah School of Medicine, 30 North 1900 East, 3R330 SOM, Salt Lake City, UT 84132, USA
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Sonnenberg GF, Fouser LA, Artis D. Border patrol: regulation of immunity, inflammation and tissue homeostasis at barrier surfaces by IL-22. Nat Immunol 2011; 12:383-90. [PMID: 21502992 DOI: 10.1038/ni.2025] [Citation(s) in RCA: 776] [Impact Index Per Article: 59.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The maintenance of barrier function at exposed surfaces of the mammalian body is essential for limiting exposure to environmental stimuli, preventing systemic dissemination of commensal and pathogenic microbes and retaining normal homeostasis of the entire body. Indeed, dysregulated barrier function is associated with many infectious and inflammatory diseases, including psoriasis, influenza, inflammatory bowel disease and human immunodeficiency virus, which collectively afflict millions of people worldwide. Studies have shown that interleukin 22 (IL-22) is expressed at barrier surfaces and that its expression is dysregulated in certain human diseases, which suggests a critical role in the maintenance of normal barrier homeostasis. Consistent with that, studies of mouse model systems have identified a critical role for signaling by IL-22 through its receptor (IL-22R) in the promotion of antimicrobial immunity, inflammation and tissue repair at barrier surfaces. In this review we will discuss how the expression of IL-22 and IL-22R is regulated, the functions of the IL-22-IL-22R pathway in regulating immunity, inflammation and tissue homeostasis, and the therapeutic potential of targeting this pathway in human disease.
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Affiliation(s)
- Gregory F Sonnenberg
- Department of Microbiology and Institute for Immunology, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Savan R, McFarland AP, Reynolds DA, Feigenbaum L, Ramakrishnan K, Karwan M, Shirota H, Klinman DM, Dunleavy K, Pittaluga S, Anderson SK, Donnelly RP, Wilson WH, Young HA. A novel role for IL-22R1 as a driver of inflammation. Blood 2011; 117:575-84. [PMID: 20971950 PMCID: PMC3031481 DOI: 10.1182/blood-2010-05-285908] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Accepted: 10/13/2010] [Indexed: 11/20/2022] Open
Abstract
The interleukin (IL)-22R1 chain of the heterodimeric IL-22 receptor is not expressed on normal leukocytes, but this receptor is expressed on T cells from anaplastic lymphoma kinase-positive (ALK(+)) anaplastic large cell lymphoma (ALCL) patients. To investigate the consequences of aberrant expression of this receptor on lymphocytes, we generated transgenic mice that express IL-22R1 on lymphocytes. The health of these animals progressively deteriorated at 8 to 12 weeks of age, as they displayed respiratory distress, rough coat and sluggish movement, and subsequent lethality due to multiorgan inflammation. The IL-22R1 transgenic animals developed neutrophilia that correlated with increased levels of circulating IL-17 and granulocyte colony-stimulating factor. In addition, these mice had increased serum IL-22 levels, suggesting that T cells expressing IL-22R1 generate IL-22 in a positive autoregulatory loop. As a result of the mouse model findings, we analyzed circulating cytokine levels in ALK(+)ALCL patients and detected elevated levels of IL-22, IL-17, and IL-8 in untreated patient samples. Importantly, IL-22 and IL-17 were undetectable in all patients who were in complete remission after chemotherapy. This study documents a previously unknown role of IL-22R1 in inflammation and identifies the involvement of IL-22R1/IL-22 in ALK(+)ALCL.
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MESH Headings
- Anaplastic Lymphoma Kinase
- Animals
- Blotting, Western
- Cell Separation
- Enzyme-Linked Immunosorbent Assay
- Flow Cytometry
- Humans
- Inflammation/genetics
- Inflammation/metabolism
- Interleukin-17/metabolism
- Interleukins/metabolism
- Lymphoma, Large-Cell, Anaplastic/genetics
- Lymphoma, Large-Cell, Anaplastic/metabolism
- Lymphoma, Large-Cell, Anaplastic/pathology
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Protein-Tyrosine Kinases/metabolism
- Receptor Protein-Tyrosine Kinases
- Receptors, Interleukin/genetics
- Receptors, Interleukin/metabolism
- Interleukin-22
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Affiliation(s)
- Ram Savan
- Cancer and Inflammation Program, Center for Cancer Research, Frederick, MD, USA
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39
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Sonnenberg GF, Fouser LA, Artis D. Functional biology of the IL-22-IL-22R pathway in regulating immunity and inflammation at barrier surfaces. Adv Immunol 2010; 107:1-29. [PMID: 21034969 DOI: 10.1016/b978-0-12-381300-8.00001-0] [Citation(s) in RCA: 131] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Expression of interleukin (IL)-22, a member of the IL-10 cytokine family, has recently been reported in a number of human diseases, including mucosal-associated infections and inflammatory disorders of the intestine, skin, and joints. Both T cells and an emerging category of innate lymphoid cells are sources of IL-22, while the IL-22 receptor complex is reported to be restricted to cells of nonhematopoietic origin. The ligand-receptor distribution of IL-22-IL-22R permits immune cells to regulate responses of epithelial cells, endothelial cells, fibroblasts, and other tissue-resident stromal cells. This pathway appears to be critically important at barrier surfaces where epithelial cells play an active role in the initiation, regulation, and resolution of immune responses. Functional studies in murine model systems indicate that IL-22 has immunoregulatory properties in infection, inflammation, autoimmunity, and cancer. In these models, the functional consequences of IL-22 expression can be either pathologic or protective, depending on the context in which it is expressed. Therefore, advancing our understanding of the biology of IL-22-IL-22R may yield novel therapeutic targets in multiple human diseases. In this review, we discuss recent findings on the expression, regulation, and function of IL-22 at barrier surfaces, and offer insights into the next frontiers to be studied in this complex cytokine pathway.
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Affiliation(s)
- Gregory F Sonnenberg
- Department of Microbiology, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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40
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El Kasmi KC, Holst J, Coffre M, Mielke L, de Pauw A, Lhocine N, Smith AM, Rutschman R, Kaushal D, Shen Y, Suda T, Donnelly RP, Myers MG, Alexander W, Vignali DAA, Watowich SS, Ernst M, Hilton DJ, Murray PJ. General nature of the STAT3-activated anti-inflammatory response. THE JOURNAL OF IMMUNOLOGY 2007; 177:7880-8. [PMID: 17114459 DOI: 10.4049/jimmunol.177.11.7880] [Citation(s) in RCA: 171] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Although many cytokine receptors generate their signals via the STAT3 pathway, the IL-10R appears unique in promoting a potent anti-inflammatory response (AIR) via STAT3 to antagonize proinflammatory signals that activate the innate immune response. We found that heterologous cytokine receptor systems that activate STAT3 but are naturally refractory (the IL-22R), or engineered to be refractory (the IL-6, leptin, and erythropoietin receptors), to suppressor of cytokine signaling-3-mediated inhibition activate an AIR indistinguishable from IL-10. We conclude that the AIR is a generic cytokine signaling pathway dependent on STAT3 but not unique to the IL-10R.
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Affiliation(s)
- Karim C El Kasmi
- Department of Infectious Diseases, St. Jude's Children's Research Hospital, Memphis, TN 38105, USA
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41
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Wolk K, Sabat R. Interleukin-22: a novel T- and NK-cell derived cytokine that regulates the biology of tissue cells. Cytokine Growth Factor Rev 2006; 17:367-80. [PMID: 17030002 DOI: 10.1016/j.cytogfr.2006.09.001] [Citation(s) in RCA: 233] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Interleukin (IL)-22, discovered in 2000, is a member of the IL-10 family of cytokines. The major sources of IL-22 are activated T1- and NK-cells. IL-22 acts via a heterodimeric receptor complex consisting of IL-22R1 and IL-10R2. Neither resting nor activated immune cells express IL-22R1 or respond to IL-22. In contrast, tissue cells at outer body barriers, i.e. of the skin, kidney, and the digestive and respiratory systems are targets of this cytokine. IL-22 functions by promoting the anti-microbial defense, protecting against damage, and re-organizing non-immune tissues. Furthermore, IL-22 induces acute phase reactants. These findings indicate that IL-22 represents a novel type of immune mediator that, although produced by immune cells, regulates tissue protection and homeostasis.
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Affiliation(s)
- Kerstin Wolk
- Interdisciplinary group of Molecular Immunopathology, Dermatology/Medical Immunology, University Hospital Charité, Campus Charité Mitte, Charitéplatz 1, D-10117 Berlin, Germany
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42
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Nagem RAP, Ferreira Júnior JR, Dumoutier L, Renauld JC, Polikarpov I. Interleukin-22 and its crystal structure. VITAMINS AND HORMONES 2006; 74:77-103. [PMID: 17027512 DOI: 10.1016/s0083-6729(06)74004-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Interleukin-22 (IL-22) is a cytokine that regulates the production of acute phase proteins of the immunological response. On binding to its cognate receptor (IL-22R1), which is associated to the interleukin-10 receptor 2 (IL-10R2), IL-22 promotes activation of signal transducer and activator of transcription (STAT) pathway and several other cellular responses. A soluble receptor termed interleukin-22 binding protein (IL-22BP) is also able to bind to IL-22 as a natural protein antagonist, and probably provides systemic regulation of IL-22 activity. This inflammatory response system is analyzed here in terms of its molecular physiology and structural assembly. Three-dimensional (3D) model of IL-22 and structural basis of its interactions with the cognate receptors are discussed.
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Affiliation(s)
- Ronaldo Alves Pinto Nagem
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627 CEP 31270910, Belo Horizonte, MG, Brazil
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43
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Ikeuchi H, Kuroiwa T, Hiramatsu N, Kaneko Y, Hiromura K, Ueki K, Nojima Y. Expression of interleukin-22 in rheumatoid arthritis: potential role as a proinflammatory cytokine. ARTHRITIS AND RHEUMATISM 2005; 52:1037-46. [PMID: 15818686 DOI: 10.1002/art.20965] [Citation(s) in RCA: 313] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
OBJECTIVE Interleukin-22 (IL-22) is a novel cytokine of the IL-10 family. Although its pathophysiologic function is largely unknown, induction of acute-phase responses by IL-22 has suggested proinflammatory properties. In this study, we sought to examine whether IL-22 plays a role in the pathogenesis of rheumatoid arthritis (RA). METHODS Expression of IL-22 and IL-22 receptor 1 (IL-22R1) was examined by reverse transcription-polymerase chain reaction (RT-PCR), Western blot, and immunohistochemical analysis. The effects of recombinant IL-22 (rIL-22) on cultured synovial fibroblasts derived from RA patients (RASF), with regard to the proliferation of synovial fibroblasts and production of monocyte chemoattractant protein 1 (MCP-1), were examined by alamer blue assay and enzyme-linked immunosorbent assay, respectively. RESULTS IL-22 messenger RNA was detected by RT-PCR in RA synovial tissues and mononuclear cells isolated from RA synovial fluid samples. High levels of IL-22 were expressed both in the lining and the sublining layers of RA synovial tissues. Staining for vimentin and CD68, as markers of synovial fibroblasts and macrophages, respectively, showed that the majority of IL-22-positive cells were synovial fibroblasts and macrophages. IL-22R1 was also expressed in both the lining and the sublining layers of RA synovial tissues. The majority of cells expressing IL-22R1 were positive for vimentin, but not for CD68. Expression of IL-22 and IL-22R1 in RASF was confirmed by RT-PCR and Western blot analysis. In vitro, rIL-22 significantly increased proliferation of RASF and production of MCP-1 by RASF above the value of medium controls. Moreover, MAPK activation was induced in RASF in response to IL-22 stimulation. CONCLUSION These data suggest that IL-22, produced by synovial fibroblasts and macrophages, promotes inflammatory responses in RA synovial tissues by inducing the proliferation and chemokine production of synovial fibroblasts.
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MESH Headings
- Animals
- Antigens, CD/metabolism
- Antigens, Differentiation, Myelomonocytic/metabolism
- Arthritis, Rheumatoid/metabolism
- Arthritis, Rheumatoid/pathology
- Biomarkers/metabolism
- Blotting, Western
- Cell Proliferation
- Cells, Cultured
- Chemokine CCL2/biosynthesis
- Chemokine CCL2/genetics
- Enzyme Activation
- Humans
- Immunoenzyme Techniques
- Interleukins/biosynthesis
- Interleukins/genetics
- Interleukins/pharmacology
- Leukocytes, Mononuclear/drug effects
- Leukocytes, Mononuclear/metabolism
- Leukocytes, Mononuclear/pathology
- RNA, Messenger/metabolism
- Receptors, Interleukin/biosynthesis
- Receptors, Interleukin/genetics
- Recombinant Proteins/pharmacology
- Reverse Transcriptase Polymerase Chain Reaction
- Synovial Fluid/cytology
- Synovial Fluid/metabolism
- Synovial Membrane/drug effects
- Synovial Membrane/metabolism
- Synovial Membrane/pathology
- Vimentin/metabolism
- p38 Mitogen-Activated Protein Kinases/metabolism
- Interleukin-22
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Nagakawa H, Shimozato O, Yu L, Takiguchi Y, Tatsumi K, Kuriyama T, Tagawa M. Expression of interleukin-22 in murine carcinoma cells did not influence tumour growth in vivo but did improve survival of the inoculated hosts. Scand J Immunol 2004; 60:449-54. [PMID: 15541036 DOI: 10.1111/j.0300-9475.2004.01504.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Interleukin (IL)-22, a novel cytokine belonging to the IL-10 family, is secreted from activated T and natural killer cells and is possibly involved in inflammatory responses. We examined whether expression of the IL-22 gene in murine colon carcinoma Colon 26 cells (Colon 26/IL-22) could produce any antitumour effects in the inoculated mice. Although growth of Colon 26/IL-22 tumours in syngeneic mice was not different from that of parent tumours, survival of the mice that were subcutaneously or intraperitoneally inoculated with Colon 26/IL-22 tumours was significantly prolonged compared with the mice inoculated with parent tumours. Metastasis was not influenced by IL-22 expressed in tumours. Expression of the IL-22 receptor-specific gene, IL-22R, was not induced in spleen cells stimulated with concanavalin A, anti-CD3 or anti-CD40 antibody, despite constitutive expression of the IL-10R2 gene, which encodes another component of the heterodimeric IL-22 receptor complex. IL-22 thereby does not directly act on immunocompetent cells, and IL-22 expressed in tumours can favour apothanasia of inoculated hosts.
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Affiliation(s)
- H Nagakawa
- Division of Pathology, Chiba Cancer Center Research Institute, Nitona, Japan
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45
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Whittington HA, Armstrong L, Uppington KM, Millar AB. Interleukin-22: a potential immunomodulatory molecule in the lung. Am J Respir Cell Mol Biol 2004; 31:220-6. [PMID: 15039135 DOI: 10.1165/rcmb.2003-0285oc] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Interleukin (IL)-22 is a member of the human type I interferon family, which includes IL-10. IL-22 has the potential to interact with IL-10 because it binds to the IL-10R2c chain with IL-22R1 in its receptor complex. Binding can be blocked by the soluble receptor, IL-22 binding protein (IL-22BP). We hypothesize that IL-22 and IL-22BP are involved in inflammatory regulation and its subsequent role in the pathogenesis of inflammatory lung disease. We have demonstrated IL-22 mRNA expression in alveolar macrophages (AM), monocytes, and alveolar epithelial (AE) cells. IL-22BP mRNA is expressed in AM, AE cells, and neutrophils. In contrast, IL-22R1 is expressed in AE only. Immunohistochemistry on normal and interstitial lung disease lung sections has confirmed IL-22 protein expression. Western blotting for IL-22 in bronchoalveolar lavage fluid demonstrated that lower levels of IL-22 were present in patients with acute respiratory distress syndrome and sarcoidosis relative to control subjects (P = 0.0152 and P = 0.0213). Levels of IL-22 in idiopathic pulmonary fibrosis were not different than those of the control subjects (P = 0.5838). IL-22 did not affect IL-10 inhibition of tumor necrosis factor-alpha in monocytes, which do not express IL-22R1. By contrast, we demonstrated synergy between IL-10 and IL-22 in terms of IL-8 inhibition in IL-22R1-expressing A549 cells. These data suggest a role for IL-22 in the regulation of pulmonary inflammation.
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Affiliation(s)
- Hayley A Whittington
- Lung Research Group, Department of Clinical Sciences North Bristol, University of Bristol, Southmead Hospital, Westbury-on-Trym, Bristol BS10 5NB, UK
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46
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Nagalakshmi ML, Rascle A, Zurawski S, Menon S, de Waal Malefyt R. Interleukin-22 activates STAT3 and induces IL-10 by colon epithelial cells. Int Immunopharmacol 2004; 4:679-91. [PMID: 15120652 DOI: 10.1016/j.intimp.2004.01.008] [Citation(s) in RCA: 159] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Human interleukin-22 (IL-22), a cytokine with structural homology to IL-10, is produced by activated T cells. The IL-22 receptor complex consists of a ligand-binding chain, the IL-22R1 and a signal-transducing chain, the IL-10R2. The aim of this study is to identify potential target cells and associated biological activity of IL-22 by identifying cell types that specifically express high levels of IL-22R1 as the expression of IL-10R2 is ubiquitous. Expression of IL-22R1 mRNA, as analyzed by real time quantitative polymerase chain reaction (PCR), was observed in human tumor cell lines of stromal or epithelial origin derived from liver, pancreas, colon and lung tissue. Furthermore, we examined the ability of IL-22 to activate the JAK-Signal Transducer and Activator of Transcription (STAT) pathway in epithelial cells of the colon. IL-22 induced the phosphorylation of STAT1 and STAT3 in Colo205, a colon epithelial cell line. Consequently, IL-22 upregulated mRNA for Suppressor of Cytokine Signaling 3 (SOCS3), a STAT3-responsive gene. Further analyses, by real time quantitative PCR, on a panel of chemokines and immune function related genes revealed that IL-22 induced expression of the acute phase proteins alpha-Antichymotrypsin and Serum Amyloid A, as well as IL-10 mRNA and protein production by Colo205. Induction of IL-10 by IL-22, in Colo205 cells, could be inhibited in the presence of a neutralizing antibody against IL-10R2. IL-22-mediated effects on the Colo205 cells were also inhibited in the presence of IL-22 binding protein (IL-22BP), a soluble receptor with structural similarity to IL-22R1. The high levels of expression of IL-22R1 observed in epithelial cells of the colon and the ability of IL-22 to upregulate production of acute phase proteins and IL-10 in Colo205 cells, suggest a functional role for IL-22 in intestinal inflammation.
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Affiliation(s)
- Marehalli L Nagalakshmi
- Department of Experimental Pathology and Pharmacology, DNAX Research Inc., 901 California Avenue, Palo Alto, CA 94304-1104, USA
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