Lypopolysaccharide downregulates the expression of selected phospholipase C genes in cultured endothelial cells.

Abstract:

:The signaling system of phosphoinositides (PI) is involved in a variety of cell and tissue functions, including membrane trafficking, ion channel activity, cell cycle, apoptosis, differentiation, and cell and tissue polarity. Recently, PI and related molecules, such as the phosphoinositide-specific phospholipases C (PI-PLCs), main players in PI signaling were supposed to be involved in inflammation. Besides the control of calcium levels, PI-PLCs contribute to the regulation of phosphatydil-inositol bisphosphate metabolism, crucial in cytoskeletal organization. The expression of PI-PLCs is strictly tissue specific and evidences suggest that it varies under different conditions, such as tumor progression or cell activation. In a previous study, we obtained a complete panel of expression of PI-PLC isoforms in human umbilical vein endothelial cells (HUVEC), a widely used experimental model for endothelial cells. In the present study, we analyzed the mRNA concentration of PI-PLCs in lipopolysaccharide (LPS)-treated HUVEC by using the multiliquid bioanalyzer methodology after 3, 6, 24, 48, and 72 h from LPS administration. Marked differences in the expression of most PI-PLC codifying genes were evident.

journal_name

Inflammation

journal_title

Inflammation

authors

Lo Vasco VR,Leopizzi M,Chiappetta C,Puggioni C,Della Rocca C,Polonia P,Businaro R

doi

10.1007/s10753-013-9613-3

subject

Has Abstract

pub_date

2013-08-01 00:00:00

pages

862-8

issue

4

eissn

0360-3997

issn

1573-2576

journal_volume

36

pub_type

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