Effects of vasoactive intestinal contractor (VIC) and endothelin on intracellular calcium level in neuroblastoma NG108-15 cells.

Abstract

Effects on [Ca2+]i levels of endothelin-l (ET) and vasoactive intestinal contractor peptide (VIC), which is a novel member of the endothelin family, were examined in fura 2-loaded neuroblastoma NG108-15 cells. VIC was found to be a very effective stimulus for intracellular Ca2+ mobilization and to be more potent than ET. Intracellular calcium response to sequential addition of two stimulants exhibited the homologous desensitization of either ET or VIC, but no heterologous desensitization between ET and VIC. This indicates evidence suggesting that these two peptides act through distinct receptors.

• Authors: T Fu, W Chang, N Ishida, K Saida, Y Mitsui, Y Okano, Y Nozawa
• Journal: FEBS letters (FEBS Lett) Vol. 257 Issue 2 Pg. 351-3 (Nov 06 1989) ISSN: 0014-5793 [Print] England
• PMID: 2684691 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Endothelins
• Intercellular Signaling Peptides and Proteins
• Peptides
• vasoactive intestinal constrictor
• Inositol 1,4,5-Trisphosphate
• Type C Phospholipases
• Calcium

Topics

• Calcium (metabolism)
• Endothelins
• In Vitro Techniques
• Inositol 1,4,5-Trisphosphate (metabolism)
• Intercellular Signaling Peptides and Proteins
• Neuroblastoma (metabolism)
• Peptides (pharmacology)
• Tumor Cells, Cultured
• Type C Phospholipases (metabolism)