RT Journal Article T1 Pharmacogenetics of OATP Transporters Reveals That SLCO1B1 c.388A>G Variant Is Determinant of Increased Atorvastatin Response A1 Rodrigues, Alice C. A1 Santos, Carla A1 Salas Ellacuriaga, Antonio A1 Freire Aradas, Ana María A1 Lareu Huidobro, María Victoria A1 Phillips, Christopher Paul A1 Porras Hurtado, Gloria Liliana A1 Fondevila Álvarez, Manuel A1 Carracedo Álvarez, Ángel A1 Hirata, Rosario D. C. K1 OATP K1 Atorvastatin K1 Single nucleotide polymorphisms K1 Pharmacogenetics AB AimsThe relationship between variants in SLCO1B1 and SLCO2B1 genes and lipid-lowering response to atorvastatin was investigated.Material and MethodsOne-hundred-thirty-six unrelated individuals with hypercholesterolemia were selected and treated with atorvastatin (10 mg/day/4 weeks). They were genotyped with a panel of ancestry informative markers for individual African component of ancestry (ACA) estimation by SNaPshot® and SLCO1B1 (c.388A>G, c.463C>A and c.521T>C) and SLCO2B1 (−71T>C) gene polymorphisms were identified by TaqMan® Real-time PCR.ResultsSubjects carrying SLCO1B1 c.388GG genotype exhibited significantly high low-density lipoprotein (LDL) cholesterol reduction relative to c.388AA+c.388AG carriers (41 vs. 37%, p = 0.034). Haplotype analysis revealed that homozygous of SLCO1B1*15 (c.521C and c.388G) variant had similar response to statin relative to heterozygous and non-carriers. A multivariate logistic regression analysis confirmed that c.388GG genotype was associated with higher LDL cholesterol reduction in the study population (OR: 3.2, CI95%:1.3–8.0, p < 0.05).ConclusionSLCO1B1 c.388A>G polymorphism causes significant increase in atorvastatin response and may be an important marker for predicting efficacy of lipid-lowering therapy. PB MDPI YR 2011 FD 2011 LK http://hdl.handle.net/10347/21660 UL http://hdl.handle.net/10347/21660 LA eng NO Rodrigues, A.C.; Perin, P.M.S.; Purim, S.G.; Silbiger, V.N.; Genvigir, F.D.V.; Willrich, M.A.V.; Arazi, S.S.; Luchessi, A.D.; Hirata, M.H.; Bernik, M.M.S.; Dorea, E.L.; Santos, C.; Faludi, A.A.; Bertolami, M.C.; Salas, A.; Freire, A.; Lareu, M.V.; Phillips, C.; Porras-Hurtado, L.; Fondevila, M.; Carracedo, A.; Hirata, R.D.C. Pharmacogenetics of OATP Transporters Reveals That SLCO1B1 c.388A>G Variant Is Determinant of Increased Atorvastatin Response. Int. J. Mol. Sci. 2011, 12, 5815-5827 NO This work was supported by grants from FAPESP (2008/06667-9). A.C. Rodrigues, F.D.V.Genvigir and M.A.V. Willrich are recipients of fellowships from FAPESP, Sao Paulo, Brazil. M.H.Hirata and R.D.C. Hirata are recipients of fellowships from CNPq, Brasilia, Brazil.This work was partially supported by Life Technologies, Sao Paulo, SP, Brazil DS Minerva RD 3 may 2026