Leukotriene D4-induced calcium signaling in human intestinal epithelial cells.
Författare
Summary, in English
LTD4 induces a calcium signal that consists of a mobilization from internal stores regulated by PTX-insensitive G protein, Rho, and, an influx across the plasma membrane regulated by PTX-sensitive Gi protein in human intestinal epithelial cells. The LTD4 induced mobilization of Ca2+ is mediated by a PH domain dependent association between PLC-gamma 1 and G beta gamma subunits. This interaction requires Src kinase activity as well as the association of this kinase with PLC-gamma 1, suggesting a G beta gamma mediated recruitment of proteins to the plasma membrane and formation of a signaling complex which is essential for the downstream Ca2+ signal. We found a cAMP-dependent protein kinase activity upstream of tyrosine kinase(s) and downstream of Gi protein, that is essential for LTD4-induced Ca2+ influx. This model of the LTD4-induced Ca2+ signaling pathways in intestinal epithelial cells is outlined schematically in Fig. 1.
Avdelning/ar
Publiceringsår
2002
Språk
Engelska
Sidor
187-191
Publikation/Tidskrift/Serie
Eicosanoids and Other Bioactive Lipids in Cancer, Inflammation, and Radiation Injury, 5 (Advances in Experimental Medicine and Biology)
Volym
507
Länkar
Dokumenttyp
Del av eller Kapitel i bok
Förlag
Springer
Ämne
- Cancer and Oncology
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0065-2598
- ISBN: 978-0-306-47283-1