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- W3103207717 abstract "Proprotein convertase subtilisin/kexin type 9 (PCSK9) induces low-density lipoprotein (LDL)-receptor (LDLR) degradation, increasing plasma LDL-cholesterol levels and causing hypercholesterolemia. Therefore, inhibition of PCSK9–LDLR interaction is an attractive therapeutic target for hypercholesterolemia treatment. In this study, we have identified a novel RNA aptamer that binds specifically to PCSK9 by in vitro selection, also known as systematic evolution of ligands by exponential enrichment (SELEX). The binding kinetics of the PCSK9-binding RNA aptamer was measured by biolayer interferometry assay, showing that the aptamer has higher affinity compared to PCSK9–LDLR interaction. Competitive inhibition assay using chemiluminescence detection revealed that the RNA aptamer inhibits PCSK9–LDLR interaction. In cellular LDL-uptake assays with HepG2 cells, the RNA aptamer recovered LDL uptake in the PCSK9-treated cells, demonstrating its anti-PCSK9 antagonistic activity. These results indicated that the PCSK9-binding RNA aptamer has the potential to be an affinity reagent for PCSK9 protein analysis and a therapeutic reagent for hypercholesterolemia treatment." @default.
- W3103207717 created "2020-11-23" @default.
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- W3103207717 date "2021-03-01" @default.
- W3103207717 modified "2023-10-17" @default.
- W3103207717 title "In vitro selection generates RNA aptamer that antagonizes PCSK9–LDLR interaction and recovers cellular LDL uptake" @default.
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- W3103207717 doi "https://doi.org/10.1016/j.jbiosc.2020.10.009" @default.
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