Role of c-fos gene in vasoactive intestinal peptide promoted synthesis of pulmonary surfactant phospholipids.
Article Details
- CitationCopy to clipboard
Li L, She H, Yue SJ, Qin XQ, Guan CX, Liu HJ, Luo ZQ
Role of c-fos gene in vasoactive intestinal peptide promoted synthesis of pulmonary surfactant phospholipids.
Regul Pept. 2007 May 3;140(3):117-24. Epub 2007 Jan 10.
- PubMed ID
- 17218027 [ View in PubMed]
- Abstract
We previously reported that vasoactive intestinal peptide (VIP) promoted synthesis of phosphatidylcholine (PC) in alveolar type II (ATII) cells. But the intracellular mechanism for this effect was unknown. In this work, we investigated the intracellular signal transduction pathway for VIP promoted synthesis of PC, the major lipid component of pulmonary surfactant (PS), by using an antagonist of VIP receptors, inhibitor of protein kinase C (PKC) and antisense oligonucleotides (AS-ODN) for c-fos oncogene. Our results showed that: 1 in circle [D-P-Cl-Phe(6)-Leu(17)]-VIP (10(-6) mol/l), an antagonist of VIP receptors, could decrease the quantity of [(3)H] choline incorporation, microsomal choline-phosphate cytidylyltransferase (CCT) mRNA expression and CCT activity induced by VIP (10(-8) mol/l) in cultured lung explants to the control levels; 2 in circle VIP (10(-8) mol/l) upregulated c-Fos protein expression in ATII cells. AS-ODN for c-fos oncogene (9x10(-6) mol/l) could block the elevation of [(3)H] choline incorporation, microsomal CCT mRNA expression and CCT activity induced by VIP in cultured lung explants and in ATII cells; 3 in circle H7 (10(-5) mol/l), a PKC inhibitor could also reduce VIP induced [(3)H] choline incorporation, microsomal CCT mRNA expression and CCT activity in cultured lung explants and in ATII cells. These results demonstrated that VIP receptors, PKC and c-Fos protein played important roles in the signaling pathway through which VIP promoted the synthesis of PC.
DrugBank Data that Cites this Article
- Drug Targets
Drug Target Kind Organism Pharmacological Action Actions Choline Choline-phosphate cytidylyltransferase A Protein Humans UnknownProduct ofDetails Choline salicylate Choline-phosphate cytidylyltransferase A Protein Humans UnknownProduct ofDetails