Study on the Role of Adenosine 3',5'-Cyclic Monophosphate (cAMP) in Regulating Nutrition
Bulur N, et al. Molecular Medicine Reports, 2013, 7(5), 1666-1672.
2'-O-Monosuccinyladenosyl-3',5'-cyclic monophosphate is an immunogenic derivative of cAMP. Interactions between adenosine 3',5'-cyclic monophosphate (cAMP), volume-regulated anion channels (VRAC), and the electrogenic sodium bicarbonate (Na+-HCO3-) cotransporter NBCe1 have been explored. In this study, the effects of 5-nitro-2-(3-phenylpropylamino)benzoic acid (NPPB) and 5-chloro-2-hydroxy-3-(thiophene-2-carbonyl)indole-1-carboxamide (tenidap) on 2'-O-monosuccinyladenosine 3',5'-cyclic monophosphate tyrosyl methyl ester were explored. · Even in the presence of 0.5 mM IBMX, the release of insulin from BRIN-BD11 cells exposed to NPPB (0.1 mM) in the hypotonic medium did not exceed 51.3±4.8% (n=3) of the value determined in the hypotonic medium and absence of NPPB, despite the presence of 0.1 mM cAMP-AM (n=2) or 2'-O-monosuccinyladenosine-3',5'-cyclic monophosphate tyrosyl methyl ester (n=1). · 2'-O-Monosuccinyladenosyl-3',5'-cyclic monophosphate tyrosylmethyl ester (0.1 mM) increases KIC-evoked insulin output from 53.0±11.5 to 97.5 in the presence of tinida ± 11.6 μU/ml/30 min (n=3 in both cases; P<0.06).
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