期刊
NEUROLOGIA MEDICO-CHIRURGICA
卷 58, 期 7, 页码 303-310出版社
JAPAN NEUROSURGICAL SOC
DOI: 10.2176/nmc.ra.2018-0022
关键词
autoantibody; TIA; cerebral infarction; biomarker; atherosclerosis
资金
- Japan Agency for Medical Research and Development (AMED) in Japan
- Japan Science and Technology Agency (JST) in Japan
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) in Japan
Recent clinical research has revealed a significant correlation between atherosclerosis, one of the primary etiologies of ischemic stroke, and the immune system. Assuming that disease-specific autoantibodies are produced in the sera of patients with ischemic stroke, we investigated multiple arteriosclerosis-related antibodies using the serological identification of antigens by recombinant cDNA expression-cloning (SEREX), an established method for identifying antigenic proteins. We either screened a human aortic endothelial cell cDNA library or conducted protein array screening using the sera from patients with ischemic stroke, such as carotid artery stenosis or transient ischemic attack (TIA). Next, we measured serum antibody levels using amplified luminescent proximity homogeneous assay-linked immunosorbent assay (AlphaLISA) in patient/healthy donor (HD) cohorts and identified several antigens, the-antibody levels of which were significantly higher in patients with ischemic stroke than in HDs. This review introduced the method of identifying antigens by the SEREX and protein microarray and summarized antigenic-proteins. In particular, it focused on anti-replication protein A2 antibody and anti-programmed cell death 11-antibody, which are significantly related to atherosclerotic plaque and ischemic brain tissue, respectively, and proposed the mechanism of elevated autoantibody levels against them. Furthermore, this review suggests a possibility of clinical application as an atherosclerotic disease diagnostic marker for TIA or cerebral infarction.
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