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Effect of the African-specific promoter polymorphisms on the SLC22A2 gene expression levels

Effect of the African-specific promoter polymorphisms on the SLC22A2 gene expression levels AbstractBackground:Single nucleotide polymorphisms in promoter regions have been shown to alter the transcription of genes. Thus, SNPs in SLC22A2 can result in inter-individual variable response to medication.Methods:The objective of the study was to investigate the effect of the African-specific promoter polymorphisms on the SLC22A2 gene expression levels in vitro. These included rs572296424 and rs150063153, which have been previously identified in the Xhosa population of South Africa. The promoter region (300 bp) for the two haplotypes was cloned into the pGLOW promoterless GFP reporter vector. The GFP expression levels of each haplotype was determined in the HEK293 cells using a GlowMax Multi-Detection E7031 luminometer in the form of light emission.Results:The relative promoter activity suggests that no significant variation exists between the expression levels of the WT and -95 haplotypes and the -95 and -156 haplotypes (p=0.498). However, the relative promoter activity of the WT haplotype in comparison to the -156 haplotype displayed a significant difference in expression level (p=0.016).Conclusions:The data presented here show that the African-specific promoter polymorphisms can cause a decrease in the SLC22A2 gene expression levels in vitro, which in turn, may influence the pharmacokinetic profiles of cationic drugs. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Drug Metabolism and Drug Interactions de Gruyter

Effect of the African-specific promoter polymorphisms on the SLC22A2 gene expression levels

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References (31)

Publisher
de Gruyter
Copyright
©2018 Walter de Gruyter GmbH, Berlin/Boston
ISSN
2191-0162
eISSN
2363-8915
DOI
10.1515/dmpt-2017-0039
Publisher site
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Abstract

AbstractBackground:Single nucleotide polymorphisms in promoter regions have been shown to alter the transcription of genes. Thus, SNPs in SLC22A2 can result in inter-individual variable response to medication.Methods:The objective of the study was to investigate the effect of the African-specific promoter polymorphisms on the SLC22A2 gene expression levels in vitro. These included rs572296424 and rs150063153, which have been previously identified in the Xhosa population of South Africa. The promoter region (300 bp) for the two haplotypes was cloned into the pGLOW promoterless GFP reporter vector. The GFP expression levels of each haplotype was determined in the HEK293 cells using a GlowMax Multi-Detection E7031 luminometer in the form of light emission.Results:The relative promoter activity suggests that no significant variation exists between the expression levels of the WT and -95 haplotypes and the -95 and -156 haplotypes (p=0.498). However, the relative promoter activity of the WT haplotype in comparison to the -156 haplotype displayed a significant difference in expression level (p=0.016).Conclusions:The data presented here show that the African-specific promoter polymorphisms can cause a decrease in the SLC22A2 gene expression levels in vitro, which in turn, may influence the pharmacokinetic profiles of cationic drugs.

Journal

Drug Metabolism and Drug Interactions – de Gruyter

Published: Jun 27, 2018

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