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Glucagon-like peptide-1 (GLP-1) expression in STC-1 cells in response to GPR120 agonists. Immunofluorescent staining was performed in control or agonist-treated [50 μM GW9508 (A) or 10 μM TUG-891 (B), 6 h] STC-1 cells grown on six-well Transwell inserts. GLP-1 is shown in red, and GPR120 in green. Images were obtained on Carl Zeiss LSM 510 META laser scanning confocal microscope equipped with a ×63 water-immersion objective. Representative images from 3 different experiments are shown.
