title: Expression of the long-chain fatty acid receptor GPR120 in the gonadotropes of the mouse anterior pituitary gland.
abstract: G-protein-coupled receptor 120 (GPR120) has been known to be a receptor of long-chain fatty acids. Here, we investigated GPR120 expression in the mouse pituitary gland via real-time PCR, in situ hybridization, and immunohistochemistry. GPR120 mRNA was abundantly expressed in the pituitary gland of ad-lib fed animals. In situ hybridization and immunohistochemistry revealed GPR120 expression in the gonadotropes of the anterior pituitary gland, but not in thyrotropes, somatotropes, lactotropes, corticotropes, melanotropes, and the posterior pituitary gland. Furthermore, 24 h of fasting induced an increase in GPR120 mRNA expression in the pituitary gland. These results demonstrate that GPR120 in mouse pituitary gonadotropes is upregulated by fasting and that it may play a role in controlling gonadotropin secretion.
authors.affiliation: Laboratory of Molecular Neurobiology, Department of Life Science, Kinki University, 3-4-1 Kowakae, Higashiosaka, Osaka, 577-8502, Japan, mory@life.kindai.ac.jp.
authors.forename: Ryutaro
authors.initials: R
authors.lastname: Moriyama
authors.forename: Chikaya
authors.initials: C
authors.lastname: Deura
authors.forename: Shingo
authors.initials: S
authors.lastname: Imoto
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Nose
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Fukushima
mesh_terms: D000818:Animals; D052681:Gonadotrophs / Q000166:cytology / Q000378:metabolism*; D007150:Immunohistochemistry; D017403:In Situ Hybridization; D008297:Male; D051379:Mice; D008813:Mice, Inbred ICR; D012333:RNA, Messenger / Q000096:biosynthesis / Q000235:genetics; D060888:Real-Time Polymerase Chain Reaction; D043562:Receptors, G-Protein-Coupled / Q000096:biosynthesis* / Q000235:genetics*
chemical_list: C498007:FFAR4 protein, mouse; D012333:RNA, Messenger; D043562:Receptors, G-Protein-Coupled
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