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Comparison of mRNA Expression Patterns of Class B Scavenger Receptors in BV2 Microglia upon Exposure to Amyloidogenic Fragments of Beta-Amyloid and Prion Proteins

机译:暴露于β-淀粉样蛋白和Pri病毒蛋白的淀粉样蛋白片段时,BV2小胶质细胞中B类清道夫受体的mRNA表达模式的比较。

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摘要

The inflammatory responses in Alzheimer's disease and prion diseases are dominated by microglia activation. Scavenger receptors have been recently related to the innate immune activation of microglia initiated by endogenous ligands. In this study, we investigated mRNA expression patterns of B class scavenger receptors CD36 and scavenger receptor B1 (SR-B1) in BV2 microglia upon exposure to amyloid fibril A beta(1-42) and PrP106-126, respectively. CD36 and SR-B1 showed similar mRNA expression patterns following each treatment. PrP106-126 induced a rapid increase of CD36 and SR-B1 mRNA levels in the treated microglia, whereas A beta(1-42) induced a delayed but persistent increase in the mRNA expression of CD36 and SR-B1. These results suggest a possible involvement of CD36 and SR-B1 in microglial interaction with amyloidogenic fragments of beta-amyloid and prion proteins.
机译:小胶质细胞活化主要控制阿尔茨海默氏病和病毒疾病的炎症反应。清道夫受体最近与由内源性配体引发的小胶质细胞的先天免疫活化有关。在这项研究中,我们调查了B类清道夫受体CD36和清道夫受体B1(SR-B1)在BV2小胶质细胞中分别暴露于淀粉样蛋白A beta(1-42)和PrP106-126的mRNA表达模式。每次治疗后,CD36和SR-B1表现出相似的mRNA表达模式。 PrP106-126诱导治疗的小胶质细胞中CD36和SR-B1 mRNA水平快速升高,而A beta(1-42)诱导CD36和SR-B1 mRNA表达延迟但持续升高。这些结果表明,CD36和SR-B1可能与小胶质蛋白与β-淀粉样蛋白和病毒蛋白的淀粉样蛋白片段发生相互作用。

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