Inhibition of lysophosphatidic acid receptors 1 and 3 attenuates atherosclerosis development in LDL-receptor deficient mice
Lysophosphatidic acid (LPA) is a natural lysophospholipid present at high concentrations within lipid-rich atherosclerotic plaques. Upon local accumulation in the damaged vessels, LPA can act as a potent activator for various types of immune cells through its specific membrane receptors LPA LPA elic...
Saved in:
Published in | Scientific reports Vol. 6; no. 1; p. 37585 |
---|---|
Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
England
Nature Publishing Group
24.11.2016
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Lysophosphatidic acid (LPA) is a natural lysophospholipid present at high concentrations within lipid-rich atherosclerotic plaques. Upon local accumulation in the damaged vessels, LPA can act as a potent activator for various types of immune cells through its specific membrane receptors LPA
LPA elicits chemotactic, pro-inflammatory and apoptotic effects that lead to atherosclerotic plaque progression. In this study we aimed to inhibit LPA signaling by means of LPA
antagonism using the small molecule Ki16425. We show that LPA
inhibition significantly impaired atherosclerosis progression. Treatment with Ki16425 also resulted in reduced CCL2 production and secretion, which led to less monocyte and neutrophil infiltration. Furthermore, we provide evidence that LPA
blockade enhanced the percentage of non-inflammatory, Ly6C
monocytes and CD4
CD25
FoxP3
T-regulatory cells. Finally, we demonstrate that LPA
antagonism mildly reduced plasma LDL cholesterol levels. Therefore, pharmacological inhibition of LPA
receptors may prove a promising approach to diminish atherosclerosis development. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2045-2322 2045-2322 |
DOI: | 10.1038/srep37585 |