Selective targeting of point-mutated KRAS through artificial microRNAs [Genetics]
![Selective targeting of point-mutated KRAS through artificial microRNAs [Genetics]](/image/eyJ1cmkiOiJodHRwOi8vd3d3LnBuYXMub3JnL2NvbnRlbnQvZWFybHkvMjAxNy8wNS8wNC8xNjIwNTYyMTE0L0YxLm1lZGl1bS5naWYiLCJmb3JtYXQiOiJ3ZWJwIiwicXVhbGl0eSI6MTAwLCJub0NhY2hlIjp0cnVlfQ==.webp)
Mutated protein-coding genes drive the molecular pathogenesis of many diseases, including cancer. Specifically, mutated KRAS is a documented driver for malignant transformation, occurring early during the pathogenesis of cancers such as lung and pancreatic adenocarcinomas. Therapeutically, the indiscriminate targeting of wild-type and point-mutated transcripts represents an important limitation. Here, we leveraged on the design of miRNA-like artificial molecules (amiRNAs) to specifically target point-mutated genes, such as KRAS, without affecting their wild-type counterparts. Compared with an siRNA-like approach, the requirement of perfect complementarity of the microRNA seed region to a given target sequence in the microRNA/target model has proven to be a more efficient strategy, accomplishing the selective targeting of point-mutated KRAS in vitro and in vivo.
Publisher URL: http://feedproxy.google.com/~r/Pnas-RssFeedOfEarlyEditionArticles/~3/8DoGAlnokiM/1620562114.short
DOI: 10.1073/pnas.1620562114
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