NUCB2/nesfatin-1: a new adipokine expressed in human and murine chondrocytes with pro-inflammatory properties, an in vitro study.
Nesfatin-1 is a recently discovered satiety-inducing adipokine identified in hypothalamic regions that regulates energy balance. So far, no data exist on NUCB2/nesfatin-1 localization in human and murine chondrocytes. Here, we therefore investigated NUCB2/nesfatin-1 gene and protein expression in human and murine chondrocytes and the effect of nesfatin-1 on pro-inflammatory cytokines expression. Peptide localization was performed by laser confocal microscopy, NUCB2 mRNA expression was studied by RT-PCR and protein secretion was measured by XMap technology and Western blot analysis. First, we demonstrated cytoplasmic localization of NUCB2/nesfatin-1 peptide in both human and murine chondrocytes. We present evidence that both mRNA and protein expression of NUCB2 were increased during the differentiation of ATDC5 murine chondrocyte cell line. Furthermore, we demonstrated that nesfatin-1 induces IL-6 and MIP-1α mRNA expression and protein secretion in ATDC-5 cells challenged with IL-1, and also increases COX-2 mRNA expression in these cells. Finally, nesfatin-1 provoked a clear induction of pro-inflammatory agents, such as COX-2, IL-8, IL-6, and MIP-1α in human primary chondrocytes from OA patients.
SERGAS, Research Laboratory 9 (NEIRID LAB: Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Institute of Medical Research (IDIS), Santiago University Clinical Hospital, Santiago de Compostela, 15706, Spain.
Morena
M
Scotece
Javier
J
Conde
Vanessa
V
Abella
Veronica
V
López
Francisca
F
Lago
Jesús
J
Pino
Juan J
JJ
Gómez-Reino
Oreste
O
Gualillo
D000818:Animals; D002135:Calcium-Binding Proteins / Q000096:biosynthesis*; D002454:Cell Differentiation; D002460:Cell Line; D002478:Cells, Cultured; D054405:Chemokine CCL3 / Q000096:biosynthesis; D019902:Chondrocytes / Q000378:metabolism; D016207:Cytokines; D004268:DNA-Binding Proteins / Q000096:biosynthesis*; D006801:Humans; D015850:Interleukin-6 / Q000096:biosynthesis; D016209:Interleukin-8 / Q000096:biosynthesis; D051379:Mice; D009419:Nerve Tissue Proteins / Q000096:biosynthesis*; D000080866:Nucleobindins; D012333:RNA, Messenger / Q000378:metabolism
D002135:Calcium-Binding Proteins; D054405:Chemokine CCL3; D016207:Cytokines; D004268:DNA-Binding Proteins; C508600:IL6 protein, human; D015850:Interleukin-6; D016209:Interleukin-8; C000630650:NUCB2 protein, human; D009419:Nerve Tissue Proteins; C000630651:Nucb1 protein, mouse; D000080866:Nucleobindins; D012333:RNA, Messenger
NUCB2; Nesfatin-1; chondrocytes; cytokines; inflammation