CCR8 regulates contact hypersensitivity by restricting cutaneous dendritic cell migration to the draining lymph nodes. 2015

Rikio Yabe, and Kenji Shimizu, and Soichiro Shimizu, and Satoe Azechi, and Byung-Il Choi, and Katsuko Sudo, and Sachiko Kubo, and Susumu Nakae, and Harumichi Ishigame, and Shigeru Kakuta, and Yoichiro Iwakura
Center for Animal Disease Models, Research Institute for Biomedical Sciences (RIBS), Tokyo University of Science, Noda, Chiba 278-0022, Japan Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, University of Tokyo (IMSUT), Minato-ku, Tokyo 108-8639, Japan Medical Mycology Research Center, Chiba University, Inohana Chuo-ku, Chiba 260-8673, Japan.

Allergic contact dermatitis (ACD) is a typical occupational disease in industrialized countries. Although various cytokines and chemokines are suggested to be involved in the pathogenesis of ACD, the roles of these molecules remain to be elucidated. CC chemokine receptor 8 (CCR8) is one such molecule, of which expression is up-regulated in inflammatory sites of ACD patients. In this study, we found that Ccr8(-/-) mice developed severer contact hypersensitivity (CHS) responses to 2,4-dinitrofluorobenzene, a murine model of ACD, compared with wild-type mice. T cells from Ccr8(-/-) mice showed enhanced proliferative recall responses and Th1 and Th17 cell populations were expanded in these mice. However, CHS responses were similar between SCID mice adoptively transferred with Ccr8(-/-) and wild-type T cells, suggesting that CCR8 in T cells is not responsible for the exacerbation of CHS. Notably, skin-resident dendritic cells (DCs), such as Langerhans cells and dermal DCs, and inflammatory DCs were highly accumulated in lymph nodes (LNs) of Ccr8(-/-) mice after sensitization. Consistent with this, Ccr8(-/-) antigen-presenting cells readily migrated from the skin to the draining LNs after sensitization. These observations suggest that CCR8 negatively regulates migration of cutaneous DCs from the skin to the draining LNs in CHS by keeping these cells in the skin.

UI MeSH Term Description Entries
D007249 Inflammation A pathological process characterized by injury or destruction of tissues caused by a variety of cytologic and chemical reactions. It is usually manifested by typical signs of pain, heat, redness, swelling, and loss of function. Innate Inflammatory Response,Inflammations,Inflammatory Response, Innate,Innate Inflammatory Responses
D007801 Langerhans Cells Recirculating, dendritic, antigen-presenting cells containing characteristic racket-shaped granules (Birbeck granules). They are found principally in the stratum spinosum of the EPIDERMIS and are rich in Class II MAJOR HISTOCOMPATIBILITY COMPLEX molecules. Langerhans cells were the first dendritic cell to be described and have been a model of study for other dendritic cells (DCs), especially other migrating DCs such as dermal DCs and INTERSTITIAL DENDRITIC CELLS. Langerhans Cell,Dendritic Cells, Dermal,Dendritic Cells, Epidermal,Dendritic Cells, Skin,Dermal Dendritic Cells,Epidermal Dendritic Cells,Skin Dendritic Cells,Cell, Dermal Dendritic,Cell, Epidermal Dendritic,Cell, Langerhans,Cell, Skin Dendritic,Cells, Dermal Dendritic,Cells, Epidermal Dendritic,Cells, Langerhans,Cells, Skin Dendritic,Dendritic Cell, Dermal,Dendritic Cell, Epidermal,Dendritic Cell, Skin,Dermal Dendritic Cell,Epidermal Dendritic Cell,Skin Dendritic Cell
D008198 Lymph Nodes They are oval or bean shaped bodies (1 - 30 mm in diameter) located along the lymphatic system. Lymph Node,Node, Lymph,Nodes, Lymph
D008807 Mice, Inbred BALB C An inbred strain of mouse that is widely used in IMMUNOLOGY studies and cancer research. BALB C Mice, Inbred,BALB C Mouse, Inbred,Inbred BALB C Mice,Inbred BALB C Mouse,Mice, BALB C,Mouse, BALB C,Mouse, Inbred BALB C,BALB C Mice,BALB C Mouse
D002465 Cell Movement The movement of cells from one location to another. Distinguish from CYTOKINESIS which is the process of dividing the CYTOPLASM of a cell. Cell Migration,Locomotion, Cell,Migration, Cell,Motility, Cell,Movement, Cell,Cell Locomotion,Cell Motility,Cell Movements,Movements, Cell
D003877 Dermatitis, Contact A type of acute or chronic skin reaction in which sensitivity is manifested by reactivity to materials or substances coming in contact with the skin. It may involve allergic or non-allergic mechanisms. Contact Dermatitis,Dermatitis Venenata,Eczema, Contact,Hypersensitivity, Contact,Sensitivity, Contact,Contact Dermatitides,Contact Eczema,Contact Hypersensitivities,Contact Hypersensitivity,Contact Sensitivities,Contact Sensitivity,Dermatitides, Contact,Hypersensitivities, Contact,Sensitivities, Contact
D004139 Dinitrofluorobenzene Irritants and reagents for labeling terminal amino acid groups. DNFB,Fluorodinitrobenzene,1-Fluoro-2,4-dinitrobenzene,1 Fluoro 2,4 dinitrobenzene
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013601 T-Lymphocytes Lymphocytes responsible for cell-mediated immunity. Two types have been identified - cytotoxic (T-LYMPHOCYTES, CYTOTOXIC) and helper T-lymphocytes (T-LYMPHOCYTES, HELPER-INDUCER). They are formed when lymphocytes circulate through the THYMUS GLAND and differentiate to thymocytes. When exposed to an antigen, they divide rapidly and produce large numbers of new T cells sensitized to that antigen. T Cell,T Lymphocyte,T-Cells,Thymus-Dependent Lymphocytes,Cell, T,Cells, T,Lymphocyte, T,Lymphocyte, Thymus-Dependent,Lymphocytes, T,Lymphocytes, Thymus-Dependent,T Cells,T Lymphocytes,T-Cell,T-Lymphocyte,Thymus Dependent Lymphocytes,Thymus-Dependent Lymphocyte
D016513 Mice, SCID Mice homozygous for the mutant autosomal recessive gene "scid" which is located on the centromeric end of chromosome 16. These mice lack mature, functional lymphocytes and are thus highly susceptible to lethal opportunistic infections if not chronically treated with antibiotics. The lack of B- and T-cell immunity resembles severe combined immunodeficiency (SCID) syndrome in human infants. SCID mice are useful as animal models since they are receptive to implantation of a human immune system producing SCID-human (SCID-hu) hematochimeric mice. SCID Mice,SCID-hu Mice,Severe Combined Immunodeficient Mice,Immunodeficient Mice, Severe Combined,Mouse, SCID,Mouse, SCID-hu,Mice, SCID-hu,Mouse, SCID hu,SCID Mouse,SCID hu Mice,SCID-hu Mouse

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