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Martin JCJ, Bériou G, Heslan M, Chauvin C, Utriainen L, Aumeunier A, Scott CL, Mowat A, Cerovic V, Houston SA, Leboeuf M, Hubert FX, Hémont C, Merad M, Milling S, Josien R. Interleukin-22 binding protein (IL-22BP) is constitutively expressed by a subset of conventional dendritic cells and is strongly induced by retinoic acid. Mucosal Immunol 2014; 7:101-13. [PMID: 23653115 PMCID: PMC4291114 DOI: 10.1038/mi.2013.28] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Accepted: 04/08/2013] [Indexed: 02/04/2023]
Abstract
Interleukin-22 (IL-22) is mainly produced at barrier surfaces by T cells and innate lymphoid cells and is crucial to maintain epithelial integrity. However, dysregulated IL-22 action leads to deleterious inflammation and is involved in diseases such as psoriasis, intestinal inflammation, and cancer. IL-22 binding protein (IL-22BP) is a soluble inhibitory IL-22 receptor and may represent a crucial regulator of IL-22. We show both in rats and mice that, in the steady state, the main source of IL-22BP is constituted by a subset of conventional dendritic cells (DCs) in lymphoid and non-lymphoid tissues. In mouse intestine, IL-22BP was specifically expressed in lamina propria CD103(+)CD11b(+) DC. In humans, IL-22BP was expressed in immature monocyte-derived DC and strongly induced by retinoic acid but dramatically reduced upon maturation. Our data suggest that a subset of immature DCs may actively participate in the regulation of IL-22 activity in the gut by producing high levels of IL-22BP.
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Affiliation(s)
- JCJ Martin
- INSERM Center of Research in Transplantation and Immunology, UMR1064, Nantes, F - 44000, France,CHU Nantes, Institut de Transplantation Urologie Néphrologie (ITUN), Nantes, F-44000, France,CHU Nantes, Laboratoire d’immunologie, Nantes, F-44000, France,Université de Nantes, Faculté de Médecine, Nantes, F-44000, France
| | - G Bériou
- INSERM Center of Research in Transplantation and Immunology, UMR1064, Nantes, F - 44000, France,CHU Nantes, Institut de Transplantation Urologie Néphrologie (ITUN), Nantes, F-44000, France
| | - M Heslan
- INSERM Center of Research in Transplantation and Immunology, UMR1064, Nantes, F - 44000, France,CHU Nantes, Institut de Transplantation Urologie Néphrologie (ITUN), Nantes, F-44000, France
| | - C Chauvin
- INSERM Center of Research in Transplantation and Immunology, UMR1064, Nantes, F - 44000, France,CHU Nantes, Institut de Transplantation Urologie Néphrologie (ITUN), Nantes, F-44000, France
| | - L Utriainen
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - A Aumeunier
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - CL Scott
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - A Mowat
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - V Cerovic
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - SA Houston
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - M Leboeuf
- Department of Gene and Cell medicine and the Department of Medicine, Mount Sinai School of Medicine, New York 10029, USA
| | - FX Hubert
- INSERM Center of Research in Transplantation and Immunology, UMR1064, Nantes, F - 44000, France,CHU Nantes, Institut de Transplantation Urologie Néphrologie (ITUN), Nantes, F-44000, France,Université de Nantes, Faculté de Médecine, Nantes, F-44000, France
| | - C Hémont
- INSERM Center of Research in Transplantation and Immunology, UMR1064, Nantes, F - 44000, France,CHU Nantes, Institut de Transplantation Urologie Néphrologie (ITUN), Nantes, F-44000, France,CHU Nantes, Laboratoire d’immunologie, Nantes, F-44000, France,Université de Nantes, Faculté de Médecine, Nantes, F-44000, France
| | - M Merad
- Department of Gene and Cell medicine and the Department of Medicine, Mount Sinai School of Medicine, New York 10029, USA
| | - S Milling
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - R Josien
- INSERM Center of Research in Transplantation and Immunology, UMR1064, Nantes, F - 44000, France,CHU Nantes, Institut de Transplantation Urologie Néphrologie (ITUN), Nantes, F-44000, France,CHU Nantes, Laboratoire d’immunologie, Nantes, F-44000, France,Université de Nantes, Faculté de Médecine, Nantes, F-44000, France
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Buettner M, Bode U. Lymph node dissection--understanding the immunological function of lymph nodes. Clin Exp Immunol 2012; 169:205-12. [PMID: 22861359 DOI: 10.1111/j.1365-2249.2012.04602.x] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Lymph nodes (LN) are one of the important sites in the body where immune responses to pathogenic antigens are initiated. This immunological function induced by cells within the LN is an extensive area of research. To clarify the general function of LN, to identify cell populations within the lymphatic system and to describe the regeneration of the lymph vessels, the experimental surgical technique of LN dissection has been established in various animal models. In this review different research areas in which LN dissection is used as an experimental tool will be highlighted. These include regeneration studies, immunological analysis and studies with clinical questions. LN were dissected in order to analyse the different cell subsets of the incoming lymph in detail. Furthermore, LN were identified as the place where the induction of an antigen-specific response occurs and, more significantly, where this immune response is regulated. During bacterial infection LN, as a filter of the lymph system, play a life-saving role. In addition, LN are essential for the induction of tolerance against harmless antigens, because tolerance could not be induced in LN-resected animals. Thus, the technique of LN dissection is an excellent and simple method to identify the important role of LN in immune responses, tolerance and infection.
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Affiliation(s)
- M Buettner
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany.
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Meier D, Cagnola H, Ramisch D, Rumbo C, Chirdo F, Docena G, Gondolesi GE, Rumbo M. Analysis of immune cells draining from the abdominal cavity as a novel tool to study intestinal transplant immunobiology. Clin Exp Immunol 2010; 162:138-45. [PMID: 20831713 DOI: 10.1111/j.1365-2249.2010.04192.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
During intestinal transplant (ITx) operation, intestinal lymphatics are not reconstituted. Consequently, trafficking immune cells drain freely into the abdominal cavity. Our aim was to evaluate whether leucocytes migrating from a transplanted intestine could be recovered from the abdominal draining fluid collected by a peritoneal drainage system in the early post-ITx period, and to determine potential applications of the assessment of draining cellular populations. The cell composition of the abdominal draining fluid was analysed during the first 11 post-ITx days. Using flow cytometry, immune cells from blood and draining fluid samples obtained the same day showed an almost complete lymphopenia in peripheral blood, whereas CD3(+) CD4(+) CD8(-) , CD3(+) CD4(-) CD8(+) and human leucocyte antigen D-related (HLA-DR)(+) CD19(+) lymphocytes were the main populations in the draining fluid. Non-complicated recipients evolved from a mixed leucocyte pattern including granulocytes, monocytes and lymphocytes to an exclusively lymphocytic pattern along the first post-ITx week. At days 1-2 post-Itx, analysis by short tandem repeats fingerprinting of CD3(+) CD8(+) sorted T cells from draining fluid indicated that 50% of cells were from graft origin, whereas by day 11 post-ITx this proportion decreased to fewer than 1%. Our results show for the first time that the abdominal drainage fluid contains mainly immune cells trafficking from the implanted intestine, providing the opportunity to sample lymphocytes draining from the grafted organ along the post-ITx period. Therefore, this analysis may provide information useful for understanding ITx immunobiology and eventually could also be of interest for clinical management.
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Affiliation(s)
- D Meier
- Laboratorio de Investigaciones del Sistema Inmune (LISIN) - FCE - Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
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