GPR119 is essential for oleoylethanolamide-induced glucagon-like peptide-1 secretion from the intestinal enteroendocrine L-cell.

Lauffer, L.M., Iakoubov, R., Brubaker, P.L.
Journal   Diabetes
Species  
Analytes Measured   GLP-1
Matrix Tested   Plasma
Year   2009
Volume   58
Page Numbers   1058-66
Application   Metabolic
Abstract

OBJECTIVE: Intestinal L-cells secrete the incretin glucagon-like peptide-1 (GLP-1) in response to ingestion of nutrients, especially long-chain fatty acids. The Galphas-coupled receptor GPR119 binds the long-chain fatty acid derivate oleoylethanolamide (OEA), and GPR119 agonists enhance GLP-1 secretion. We therefore hypothesized that OEA stimulates GLP-1 release through a GPR119-dependent mechanism. RESEARCH DESIGN AND

METHODS: Murine (m) GLUTag, human (h) NCI-H716, and primary fetal rat intestinal L-cell models were used for RT-PCR and for cAMP and GLP-1 radioimmunoassay. Anesthetized rats received intravenous or intraileal OEA, and plasma bioactive GLP-1, insulin, and glucose levels were determined by enzyme-linked immunosorbent assay or glucose analyzer.

RESULTS: GPR119 messenger RNA was detected in all L-cell models. OEA treatment (10 micromol/l) of mGLUTag cells increased cAMP levels (P < 0.05) and GLP-1 secretion (P < 0.001) in all models, with desensitization of the secretory response at higher concentrations. GLP-1 secretion was further enhanced by prevention of OEA degradation using the fatty acid amide hydrolase inhibitor, URB597 (P < 0.05-0.001 vs. OEA alone), and was abolished by H89-induced inhibition of protein kinase A. OEA-induced cAMP levels and GLP-1 secretion were significantly reduced in mGLUTag cells transfected with GPR119-specific small interfering RNA (P < 0.05). Application of OEA (10 micromol/l) directly into the rat ileum, but not intravenously, increased plasma bioactive GLP-1 levels in euglycemic animals by 1.5-fold (P < 0.05) and insulin levels by 3.9-fold (P < 0.01) but only in the presence of hyperglycemia.

CONCLUSIONS: The results of these studies demonstrate, for the first time, that OEA increases GLP-1 secretion from intestinal L-cells through activation of the novel GPR119 fatty acid derivate receptor in vitro and in vivo.

View Publications

Related Products

U-PLEX Human GLP-1 (total) Assay
GLP-1 (total) | Human
Singleplex
U-PLEX Mouse GLP-1 (total) Assay
GLP-1 (total) | Mouse
Singleplex
U-PLEX Rat GLP-1 (total) Assay
GLP-1 (total) | Rat
Singleplex
U-PLEX Custom Metabolic Group 1 (ms) Assay
Mouse
Multiplex
U-PLEX Metabolic Group 1 (rat) Assay
Rat
Multiplex
U-PLEX Custom Metabolic Group 1 (rat) Assays
Rat
Multiplex
U-PLEX Metabolic Group 1 (ms) Assay
Mouse
Multiplex
U-PLEX Obesity Combo 2 (ms)
C-Peptide, Ghrelin (total), GLP-1 (total), Insulin, Leptin, PYY (total) | Mouse
Multiplex
U-PLEX Metabolic 3-Plex Combo 1 (rat)
GLP-1 (total), Glucagon, Insulin | Rat
Multiplex
U-PLEX Diabetes Combo 1 (rat)
C-Peptide, GLP-1 (total), Glucagon, Insulin, Leptin, PYY (total) | Rat
Multiplex
U-PLEX Metabolic Combo 1 (ms)
BAFF, BDNF, C-Peptide, FGF-21, Ghrelin (active), Ghrelin (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, Insulin, Leptin, PYY (total) | Mouse
Multiplex
U-PLEX Metabolic Group 1 (ms) 58-Plex
BAFF, BCA-1/BLC, BDNF, CD40/TNFRSF5, C-Peptide, Eotaxin, EPO, FGF-21, Ghrelin (active), Ghrelin (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, GM-CSF, IFN-α, IFN-β, IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-9, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IL-17A/F, IL-17C, IL-17E/IL-25, IL-17F, IL-21, IL-22, IL-23, IL-27p28/IL-30, IL-31, IL-33, Insulin, IP-10, KC/GRO, Leptin, MCP-1, MCP-5/CCL12, MDC, MIP-1α, MIP-1β, MIP-2, MIP-3α, MMP-9 (total), PYY (total), RANTES, TARC, TNF-α, VEGF-A | Mouse
Multiplex
U-PLEX Metabolic 3-Plex Combo 1 (ms)
GLP-1 (total), Glucagon, Insulin | Mouse
Multiplex
U-PLEX Diabetes Combo 1 (ms)
C-Peptide, GLP-1 (total), Glucagon, Insulin, Leptin, PYY (total) | Mouse
Multiplex
U-PLEX Metabolic Combo 1 (rat)
BDNF, C-Peptide, FGF-21, Ghrelin (active), Ghrelin (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, Insulin, Leptin, PYY (total) | Rat
Multiplex
U-PLEX Obesity Combo 2 (rat)
C-Peptide, Ghrelin (total), GLP-1 (total), Insulin, Leptin, PYY (total) | Rat
Multiplex
U-PLEX Metabolic Group 1 (hu) 87-Plex
BAFF, BDNF, β-NGF, C-Peptide, CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, FGF-21, FGF-23, FLT3L, Fractalkine, FSH, G-CSF, Ghrelin (active), Ghrelin (total), GIP (active), GIP (inactive), GIP (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, GM-CSF, GRO-α, I-309, IFN-α2a, IFN-β, IFN-γ, IL-1α, IL-1β, IL-1RA, IL-2, IL-2Rα, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IL-17A/F, IL-17C, IL-17D, IL-17E/IL-25, IL-17F, IL-18, IL-21, IL-22, IL-23, IL-27, IL-29/IFN-λ1, IL-31, IL-33, Insulin, IP-10, Leptin, Luteinizing Hormone (LH), MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-5, PP, Proinsulin, PYY (total), SDF-1α, TARC, TNF-α, TNF-β, TPO, TRAIL, TSLP, VEGF-A, YKL-40 | Human
Multiplex
U-PLEX Custom Metabolic Group 1 (hu) Assays
BAFF, BDNF, β-NGF, C-Peptide, CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, FGF-21, FGF-23, FLT3L, Fractalkine, FSH, G-CSF, Ghrelin (active), Ghrelin (total), GIP (active), GIP (inactive), GIP (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, GM-CSF, GRO-α, I-309, IFN-α2a, IFN-β, IFN-γ, IL-1α, IL-1β, IL-1RA, IL-2, IL-2Rα, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IL-17A/F, IL-17C, IL-17D, IL-17E/IL-25, IL-17F, IL-18, IL-21, IL-22, IL-23, IL-27, IL-29/IFN-λ1, IL-31, IL-33, Insulin, IP-10, Leptin, Luteinizing Hormone (LH), MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-5, PP, Proinsulin, PYY (total), SDF-1α, TARC, TNF-α, TNF-β, TPO, TRAIL, TSLP, VEGF-A, YKL-40 | Human
Multiplex
U-PLEX Metabolic Group 1 (hu) Assays
BAFF, BDNF, β-NGF, C-Peptide, CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, FGF-21, FGF-23, FLT3L, Fractalkine, FSH, G-CSF, Ghrelin (active), Ghrelin (total), GIP (active), GIP (inactive), GIP (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, GM-CSF, GRO-α, I-309, IFN-α2a, IFN-β, IFN-γ, IL-1α, IL-1β, IL-1RA, IL-2, IL-2Rα, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IL-17A/F, IL-17C, IL-17D, IL-17E/IL-25, IL-17F, IL-18, IL-21, IL-22, IL-23, IL-27, IL-29/IFN-λ1, IL-31, IL-33, Insulin, IP-10, Leptin, Luteinizing Hormone (LH), MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-5, PP, Proinsulin, PYY (total), SDF-1α, TARC, TNF-α, TNF-β, TPO, TRAIL, TSLP, VEGF-A, YKL-40 | Human
Multiplex
U-PLEX GLP-1 (total) Antibody Set
GLP-1 (total) | Human, Mouse, Rat
U-PLEX Diabetes Combo 1 (hu)
C-Peptide, GIP (total), GLP-1 (total), Glucagon, Insulin, Leptin, PYY (total) | Human
Multiplex
U-PLEX Metabolic Combo 1 (hu)
BAFF, BDNF, β-NGF, C-Peptide, FGF-21, FGF-23, FSH, Ghrelin (active), Ghrelin (total), GIP (active), GIP (inactive), GIP (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, Insulin, Leptin, Luteinizing Hormone (LH), PP, Proinsulin, PYY (total) | Human
Multiplex
U-PLEX Obesity Combo 2 (hu)
C-Peptide, FGF-23, Ghrelin (total), GLP-1 (total), Insulin, Leptin, PYY (total) | Human
Multiplex
V-PLEX Plus GLP-1 Total Kit
GLP-1 (total) | Human, Mouse, Non-human primate, Rat, Canine
Singleplex
V-PLEX GLP-1 Total Kit
GLP-1 (total) | Human, Mouse, Non-human primate, Rat, Canine
Singleplex
GLP-1 (total) Control Pack
GLP-1 (total) | Human, Mouse, Non-human primate, Rat, Canine
Total GLP-1 Antibody
GLP-1 (total)
GLP-1 (total) Antibody
GLP-1 (total) | Human
Browse Our Products

By Analytes
By Applications
Search
Customer Service/Orders


Scientific/Technical Support


Instrument Support


Company Headquarters