期刊
JOURNAL OF CELLULAR AND MOLECULAR MEDICINE
卷 22, 期 9, 页码 4317-4327出版社
WILEY
DOI: 10.1111/jcmm.13721
关键词
atherosclerosis; inflammation; monocytes; platelets; Src family kinases
资金
- British Heart Foundation [PG/08/033/24856, RG/12/7/29693]
The Src family kinases (SFK) are a group of signalling molecules with important regulatory functions in inflammation and haemostasis. Leucocytes and platelets express multiple isoforms of the SFKs. Previous studies used broad-spectrum pharmacological inhibitors, or murine models deficient in multiple SFK isoforms, to demonstrate the functional consequences of deficiencies in SFK signalling. Here, we hypothesized that individual SFK operate in a non-redundant fashion in the thrombo-inflammatory recruitment of monocyte during atherosclerosis. Using invitro adhesion assays and single SFK knockout mice crossed with the ApoE(-/-) model of atherosclerosis, we find that SFK signalling regulates platelet-dependent recruitment of monocytes. However, loss of a single SFK, Fgr or Lyn, reduced platelet-mediated monocyte recruitment invitro. This translated into a significant reduction in the burden of atherosclerotic disease in Fgr(-/-)/ApoE(-/-) or Lyn(-/-)/ApoE(-/-) animals. SFK signalling is not redundant in thrombo-inflammatory vascular disease and individual SFK may represent targets for therapeutic intervention.
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