title: Expression of chemokine-like receptor 1 (CMKLR1) on J744A.1 macrophages co-cultured with fibroblast and/or tumor cells: modeling the influence of microenvironment.
abstract: Maturation of macrophages is influenced by the composition of surrounding microenvironment. Expression of CMKLR1, the receptor for chemerin, is potentially associated with the differentiation status of macrophages. In this study, CMKLR1 was determined on peritoneal and tumor-infiltrating macrophages. CMKLR1 expression was found to be associated with the fibroblast-assisted maturation of J744A.1 monocyte/macrophage cells in the co-cultures established to model tumor microenvironment, whereas the presence of tumor cells was able to upregulate CMKLR1 expression independent of macrophage maturation. In addition, macrophages cultured with tumor cells or in tumor cell-conditioned media responded to recombinant chemerin(17-156) peptide and increased the expression of proinflammatory IL-1β, TNF-α and IL-12 p40 cytokines. The native form of chemerin (prochemerin) supplied by fibroblasts did not induce a functional response. These observations may indicate a potential role for chemerin and CMKLR1 in the regulation of inflammatory responses in the tumor microenvironment.
authors.affiliation: Department of Basic Oncology, Institute of Oncology, Hacettepe University, 06100 Sihhiye, Ankara, Turkey.
authors.forename: Dorina
authors.initials: D
authors.lastname: Rama
authors.forename: Gunes
authors.initials: G
authors.lastname: Esendagli
authors.forename: Dicle
authors.initials: D
authors.lastname: Guc
mesh_terms: D041721:3T3-L1 Cells; D000818:Animals; D002460:Cell Line; D045744:Cell Line, Tumor; D002478:Cells, Cultured; D018925:Chemokines; D002630:Chemotactic Factors / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology; D018920:Coculture Techniques; D005260:Female; D005347:Fibroblasts / Q000166:cytology / Q000378:metabolism*; D015870:Gene Expression; D007150:Immunohistochemistry; D036341:Intercellular Signaling Peptides and Proteins / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology; D053762:Interleukin-12 Subunit p40 / Q000235:genetics / Q000378:metabolism; D053583:Interleukin-1beta / Q000235:genetics / Q000378:metabolism; D008264:Macrophages / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D008954:Models, Biological; D041681:NIH 3T3 Cells; D009369:Neoplasms / Q000235:genetics / Q000378:metabolism / Q000473:pathology; D010446:Peptide Fragments / Q000494:pharmacology; D019707:Receptors, Chemokine; D043562:Receptors, G-Protein-Coupled / Q000235:genetics* / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D059016:Tumor Microenvironment / Q000235:genetics; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics / Q000378:metabolism
chemical_list: C486456:CMKLR1 protein, mouse; D018925:Chemokines; D002630:Chemotactic Factors; D036341:Intercellular Signaling Peptides and Proteins; D053762:Interleukin-12 Subunit p40; D053583:Interleukin-1beta; D010446:Peptide Fragments; D019707:Receptors, Chemokine; D043562:Receptors, G-Protein-Coupled; D014409:Tumor Necrosis Factor-alpha; C523686:chemerin protein, mouse