ArticleBio-protocol2019
Genotyping of the OATP1B1 c. 521 T>C Polymorphism from the Formalin-Fixed Paraffin-Embedded (FFPE) Tissue Specimens: an Optimized Protocol.
Article in Bio-protocol, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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3 authors at 1 institution in 1 country.
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Abstract
Organic anion transporting polypeptide (OATP) 1B1 is a liver-specific transport protein that plays an important role in hepatic drug disposition. It transports many drugs from the blood into the liver, including lipid-lowering statins. The c. 521 T>C polymorphism of OATP1B1 has reduced transport activity and is associated with statin-induced myopathy. Formalin-fixed paraffin-embedded (FFPE) liver tissues can be an enriched source for genotyping of this clinically significant OATP1B1 polymorphism in retrospective studies. The successfulness of genotyping using Sanger-sequencing of a PCR product from FFPE tissue relies on a successful PCR amplification using genomic DNA extracted from the FFPE tissues. Such PCR amplification is often limited by the quality of DNA extracted from the FFPE tissue. An optimized method for high-quality DNA extraction and efficient PCR amplification is highly needed in order to genotype polymorphisms such as the c. 521 T>C polymorphism using FFPE tissues. The current study established an optimized and reproducible method for a Sanger-sequencing-based genotyping method using FFPE human liver tissues that is applicable to even small FFPE tissues such as needle-core biopsy specimens.
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