ABCB1 and ABCC1 expression in peripheral mononuclear cells is influenced by gene polymorphisms and atorvastatin treatment

This study investigated the effects of atorvastatin on ABCB1 and ABCC1 mRNA expression on peripheral blood mononuclear cells (PBMC) and their relationship with gene polymorphisms and lowering-cholesterol response. One hundred and thirty-six individuals with hypercholesterolemia were selected and tre...

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Veröffentlicht in:Biochemical pharmacology 2009, Vol.77 (1), p.66-75
Hauptverfasser: Rebecchi, Ivanise Marina Moretti, Rodrigues, Alice Cristina, Arazi, Simone Sorkin, Genvigir, Fabiana Dalla Vecchia, Willrich, Maria Alice Vieira, Hirata, Mario Hiroyuki, Soares, Sarah Aparecida, Bertolami, Marcelo Chiara, Faludi, André Arpad, Bernik, Márcia Martins Silveira, Dorea, Egidio Lima, Dagli, Maria Lucia Zaidan, Avanzo, José Luis, Hirata, Rosario Dominguez Crespo
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container_end_page 75
container_issue 1
container_start_page 66
container_title Biochemical pharmacology
container_volume 77
creator Rebecchi, Ivanise Marina Moretti
Rodrigues, Alice Cristina
Arazi, Simone Sorkin
Genvigir, Fabiana Dalla Vecchia
Willrich, Maria Alice Vieira
Hirata, Mario Hiroyuki
Soares, Sarah Aparecida
Bertolami, Marcelo Chiara
Faludi, André Arpad
Bernik, Márcia Martins Silveira
Dorea, Egidio Lima
Dagli, Maria Lucia Zaidan
Avanzo, José Luis
Hirata, Rosario Dominguez Crespo
description This study investigated the effects of atorvastatin on ABCB1 and ABCC1 mRNA expression on peripheral blood mononuclear cells (PBMC) and their relationship with gene polymorphisms and lowering-cholesterol response. One hundred and thirty-six individuals with hypercholesterolemia were selected and treated with atorvastatin (10 mg/day/4 weeks). Blood samples were collected for serum lipids and apolipoproteins measurements and DNA and RNA extraction. ABCB1 (C3435T and G2677T/A) and ABCC1 (G2012T) gene polymorphisms were identified by polymerase chain reaction-restriction (PCR)-RFLP and mRNA expression was measured in peripheral blood mononuclear cells by singleplex real-time PCR. ABCB1 polymorphisms were associated with risk for coronary artery disease (CAD) ( p < 0.05). After atorvastatin treatment, both ABCB1 and ABCC1 genes showed 50% reduction of the mRNA expression ( p < 0.05). Reduction of ABCB1 expression was associated with ABCB1 G2677T/A polymorphism ( p = 0.039). Basal ABCB1 mRNA in the lower quartile (0.085: LDL-c = 40.3 ± 14.3%; apoB = 32.5 ± 10.7%; p < 0.05). ABCB1 substrates or inhibitors did not affect the baseline expression, while ABCB1 inhibitors reversed the effects of atorvastatin on both ABCB1 and ABCC1 transporters. In conclusion, ABCB1 and ABCC1 mRNA levels in PBMC are modulated by atorvastatin and ABCB1 G2677T/A polymorphism and ABCB1 baseline expression is related to differences in serum LDL cholesterol and apoB in response to atorvastatin.
doi_str_mv 10.1016/j.bcp.2008.09.019
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One hundred and thirty-six individuals with hypercholesterolemia were selected and treated with atorvastatin (10 mg/day/4 weeks). Blood samples were collected for serum lipids and apolipoproteins measurements and DNA and RNA extraction. ABCB1 (C3435T and G2677T/A) and ABCC1 (G2012T) gene polymorphisms were identified by polymerase chain reaction-restriction (PCR)-RFLP and mRNA expression was measured in peripheral blood mononuclear cells by singleplex real-time PCR. ABCB1 polymorphisms were associated with risk for coronary artery disease (CAD) ( p &lt; 0.05). After atorvastatin treatment, both ABCB1 and ABCC1 genes showed 50% reduction of the mRNA expression ( p &lt; 0.05). Reduction of ABCB1 expression was associated with ABCB1 G2677T/A polymorphism ( p = 0.039). Basal ABCB1 mRNA in the lower quartile (&lt;0.024) was associated with lower reduction rate of serum low-density lipoprotein (LDL) cholesterol (33.4 ± 12.4%) and apolipoprotein B (apoB) (17.0 ± 31.3%) when compared with the higher quartile (&gt;0.085: LDL-c = 40.3 ± 14.3%; apoB = 32.5 ± 10.7%; p &lt; 0.05). ABCB1 substrates or inhibitors did not affect the baseline expression, while ABCB1 inhibitors reversed the effects of atorvastatin on both ABCB1 and ABCC1 transporters. 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One hundred and thirty-six individuals with hypercholesterolemia were selected and treated with atorvastatin (10 mg/day/4 weeks). Blood samples were collected for serum lipids and apolipoproteins measurements and DNA and RNA extraction. ABCB1 (C3435T and G2677T/A) and ABCC1 (G2012T) gene polymorphisms were identified by polymerase chain reaction-restriction (PCR)-RFLP and mRNA expression was measured in peripheral blood mononuclear cells by singleplex real-time PCR. ABCB1 polymorphisms were associated with risk for coronary artery disease (CAD) ( p &lt; 0.05). After atorvastatin treatment, both ABCB1 and ABCC1 genes showed 50% reduction of the mRNA expression ( p &lt; 0.05). Reduction of ABCB1 expression was associated with ABCB1 G2677T/A polymorphism ( p = 0.039). Basal ABCB1 mRNA in the lower quartile (&lt;0.024) was associated with lower reduction rate of serum low-density lipoprotein (LDL) cholesterol (33.4 ± 12.4%) and apolipoprotein B (apoB) (17.0 ± 31.3%) when compared with the higher quartile (&gt;0.085: LDL-c = 40.3 ± 14.3%; apoB = 32.5 ± 10.7%; p &lt; 0.05). ABCB1 substrates or inhibitors did not affect the baseline expression, while ABCB1 inhibitors reversed the effects of atorvastatin on both ABCB1 and ABCC1 transporters. 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One hundred and thirty-six individuals with hypercholesterolemia were selected and treated with atorvastatin (10 mg/day/4 weeks). Blood samples were collected for serum lipids and apolipoproteins measurements and DNA and RNA extraction. ABCB1 (C3435T and G2677T/A) and ABCC1 (G2012T) gene polymorphisms were identified by polymerase chain reaction-restriction (PCR)-RFLP and mRNA expression was measured in peripheral blood mononuclear cells by singleplex real-time PCR. ABCB1 polymorphisms were associated with risk for coronary artery disease (CAD) ( p &lt; 0.05). After atorvastatin treatment, both ABCB1 and ABCC1 genes showed 50% reduction of the mRNA expression ( p &lt; 0.05). Reduction of ABCB1 expression was associated with ABCB1 G2677T/A polymorphism ( p = 0.039). Basal ABCB1 mRNA in the lower quartile (&lt;0.024) was associated with lower reduction rate of serum low-density lipoprotein (LDL) cholesterol (33.4 ± 12.4%) and apolipoprotein B (apoB) (17.0 ± 31.3%) when compared with the higher quartile (&gt;0.085: LDL-c = 40.3 ± 14.3%; apoB = 32.5 ± 10.7%; p &lt; 0.05). ABCB1 substrates or inhibitors did not affect the baseline expression, while ABCB1 inhibitors reversed the effects of atorvastatin on both ABCB1 and ABCC1 transporters. In conclusion, ABCB1 and ABCC1 mRNA levels in PBMC are modulated by atorvastatin and ABCB1 G2677T/A polymorphism and ABCB1 baseline expression is related to differences in serum LDL cholesterol and apoB in response to atorvastatin.</abstract><cop>Amsterdam</cop><pub>Elsevier Inc</pub><pmid>18851956</pmid><doi>10.1016/j.bcp.2008.09.019</doi><tpages>10</tpages></addata></record>
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subjects ABCB1
ABCC1
Aged
Anticholesteremic Agents - pharmacology
Atorvastatin
Atorvastatin Calcium
ATP Binding Cassette Transporter, Sub-Family B
ATP-Binding Cassette, Sub-Family B, Member 1 - biosynthesis
ATP-Binding Cassette, Sub-Family B, Member 1 - genetics
ATP-Binding Cassette, Sub-Family B, Member 1 - metabolism
Biological and medical sciences
Female
Gene expression
Gene Expression Regulation - drug effects
Gene Expression Regulation - genetics
Heptanoic Acids - pharmacology
Humans
Leukocytes, Mononuclear - drug effects
Leukocytes, Mononuclear - metabolism
Male
Medical sciences
Middle Aged
Multidrug Resistance-Associated Proteins - biosynthesis
Multidrug Resistance-Associated Proteins - genetics
Multidrug Resistance-Associated Proteins - metabolism
Pharmacogenetics
Pharmacology. Drug treatments
Polymorphism, Genetic - drug effects
Polymorphism, Genetic - genetics
Pyrroles - pharmacology
Single nucleotide polymorphisms
title ABCB1 and ABCC1 expression in peripheral mononuclear cells is influenced by gene polymorphisms and atorvastatin treatment
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