Title : Inhibition of intestinal dipeptide transport by the neuropeptide VIP is an anti-absorptive effect via the VPAC1 receptor in a human enterocyte-like cell line (Caco-2).

Pub. Date : 2003 Feb

PMID : 12598410






6 Functional Relationships(s)
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1 Inhibition of intestinal dipeptide transport by the neuropeptide VIP is an anti-absorptive effect via the VPAC1 receptor in a human enterocyte-like cell line (Caco-2). Dipeptides vasoactive intestinal peptide Homo sapiens
2 The ability of the anti-absorptive enteric neuropeptide VIP (vasoactive intestinal peptide) to modulate dipeptide uptake was determined using human intestinal (Caco-2) epithelial cell monolayers. Dipeptides vasoactive intestinal peptide Homo sapiens
3 The ability of the anti-absorptive enteric neuropeptide VIP (vasoactive intestinal peptide) to modulate dipeptide uptake was determined using human intestinal (Caco-2) epithelial cell monolayers. Dipeptides vasoactive intestinal peptide Homo sapiens
4 Experiments with BCECF [2",7"-bis(2-carboxyethyl)-5(6)-carboxyfluorescein]-loaded Caco-2 cells demonstrate that VIP reduces the NHE3-dependent recovery of intracellular pH (pH(i)) after dipeptide-induced acidification. Dipeptides vasoactive intestinal peptide Homo sapiens
5 VIP has no effect on Gly-Sar uptake in the presence of S1611 suggesting that VIP and S1611 both modulate dipeptide uptake via the same mechanism. Dipeptides vasoactive intestinal peptide Homo sapiens
6 These observations demonstrate that VIP (and PACAP) modulate activity of the H(+)/dipeptide transporter hPepT1 in a Na(+)-dependent manner consistent with the modulation being indirect through inhibition of NHE3. Dipeptides vasoactive intestinal peptide Homo sapiens