| First Author | He C | Year | 2015 |
| Journal | Nat Commun | Volume | 6 |
| Pages | 7770 | PubMed ID | 26183159 |
| Mgi Jnum | J:224456 | Mgi Id | MGI:5662314 |
| Doi | 10.1038/ncomms8770 | Citation | He C, et al. (2015) PDGFRbeta signalling regulates local inflammation and synergizes with hypercholesterolaemia to promote atherosclerosis. Nat Commun 6:7770 |
| abstractText | Platelet-derived growth factor (PDGF) is a mitogen and chemoattractant for vascular smooth muscle cells (VSMCs). However, the direct effects of PDGF receptor beta (PDGFRbeta) activation on VSMCs have not been studied in the context of atherosclerosis. Here we present a new mouse model of atherosclerosis with an activating mutation in PDGFRbeta. Increased PDGFRbeta signalling induces chemokine secretion and leads to leukocyte accumulation in the adventitia and media of the aorta. Furthermore, PDGFRbeta(D849V) amplifies and accelerates atherosclerosis in hypercholesterolemic ApoE(-/-) or Ldlr(-/-) mice. Intriguingly, increased PDGFRbeta signalling promotes advanced plaque formation at novel sites in the thoracic aorta and coronary arteries. However, deletion of the PDGFRbeta-activated transcription factor STAT1 in VSMCs alleviates inflammation of the arterial wall and reduces plaque burden. These results demonstrate that PDGFRbeta pathway activation has a profound effect on vascular disease and support the conclusion that inflammation in the outer arterial layers is a driving process for atherosclerosis. |
