Recent advances in drug delivery via the organic cation/carnitine transporter 2 (OCTN2/SLC22A5)

Expert Opinion on Therapeutic Targets
Longfa KouRuijie Chen

Abstract

Transporters in the plasma membrane have been exploited successfully for the delivery of drugs in the form of prodrugs and nanoparticles. Organic cation/carnitine transporter 2 (OCTN2, SLC22A5) has emerged as a viable target for drug delivery. OCTN2 is a Na+-dependent high-affinity transporter for L-carnitine and a Na+-independent transporter for organic cations. OCTN2 is expressed in the blood-brain barrier, heart, liver, kidney, intestinal tract and placenta and plays an essential role in L-carnitine homeostasis in the body. Areas covered: In recent years, several studies have been reported in the literature describing the utility of OCTN2 to enhance the delivery of drugs, prodrugs and nanoparticles. Here we summarize the salient features of OCTN2 in terms of its role in the cellular uptake of its physiological substrate L-carnitine in physiological and pathological context; the structural requirements for recognition and the recent advances in OCTN2-targeted drug delivery systems, including prodrugs and nanoparticles, are discussed. Expert opinion: This transporter has great potential to be utilized as a target for drug delivery to improve oral absorption of drugs in the intestinal tract. It also has potential to facilitate ...Continue Reading

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Citations

Dec 22, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Barbara Juraszek, Katarzyna A Nałęcz
Feb 7, 2020·PloS One·Bianca Maria RotoliValeria Dall'Asta
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May 7, 2020·Asian Journal of Pharmaceutical Sciences·Longfa KouRuijie Chen
May 7, 2020·Asian Journal of Pharmaceutical Sciences·Yi PengLushan Yu
Sep 4, 2020·Journal of Controlled Release : Official Journal of the Controlled Release Society·Qing YaoLongfa Kou

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