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Genetic Diversity in Drug Transporters: Impact in African Populations

Rajman, Iris and Hanna, Imad and Knapp, Laura (2020) Genetic Diversity in Drug Transporters: Impact in African Populations. Clinical and Translational Science. ISSN 17528062

Abstract

Polymorphisms in drug transporters, like the adenosine triposphate‒binding cassette (ABC) and solute carrier (SLC) superfamilies, may contribute to the observed diversity in drug response in African patients. This review aims to provide a comprehensive summary and analysis of the frequencies and distributions in African populations of ABC and SLC variants that affect drug pharmacokinetics (PK) and pharmacodynamics (PD). Of polymorphisms evaluated in African populations, SLCO1B1 rs4149056 and SLC22A6 rs1158626 were found at markedly higher frequencies than in non-African populations. SLCO1B1 rs4149056 was associated with reduction in rifampin exposure, which has implications for dosing this important anti-tuberculosis therapy. SLC22A6 rs1158626 was associated with increased affinity for antiretroviral drugs. Genetic diversity in SLC and ABC transporters in African populations has implications for conventional therapies, notably in tuberculosis and HIV. More PK and PD data in African populations are needed to assess potential for a different response to drugs compared with other global populations.

Item Type: Article
Date Deposited: 09 Jun 2020 00:45
Last Modified: 09 Jun 2020 00:45
URI: https://oak.novartis.com/id/eprint/41387

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