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Batara DC, Park SW, Kim HJ, Choi SY, Ohn T, Choi MC, Park SI, Kim SH. Targeting the multidrug and toxin extrusion 1 gene ( SLC47A1) sensitizes glioma stem cells to temozolomide. Am J Cancer Res 2023; 13:4021-4038. [PMID: 37818053 PMCID: PMC10560943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 08/08/2023] [Indexed: 10/12/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most aggressive type of brain tumor, with an extremely poor prognosis due to resistance to standard-of-care treatments. Strong evidence suggests that the small population of glioma stem cells (GSCs) contributes to the aggressiveness of GBM. One of the mechanisms that promote GSC progression is the dysregulation of membrane transporters, which mediate the influx and efflux of substances to maintain cellular homeostasis. Here, we investigated the role of multidrug and toxin extrusion transporter gene SLC47A1 in GSCs. Results show that SLC47A1 is highly expressed in GSCs compared to non-stem cell glioma cells, and non-tumor cells. Additionally, in-silico analysis of public datasets showed that high SLC47A1 expression is linked to malignancy and a poor prognosis in glioma patients. Further, SLC47A1 expression is correlated with important biological processes and signaling pathways that support tumor growth. Meanwhile, silencing SLC47A1 by short-hairpin RNA (shRNA) influenced cell viability and self-renewal activity in GSCs. Interestingly, SLC47A1 shRNA knockdown or pharmacological inhibition potentiates the effect of temozolomide (TMZ) in GSC cells. The findings suggest that SLC47A1 could serve as a useful therapeutic target for gliomas.
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Affiliation(s)
- Don Carlo Batara
- Animal Molecular Biochemistry Laboratory, Department of Animal Science, College of Agriculture and Life Sciences, Chonnam National UniversityGwangju 61186, South Korea
| | - Sang Wook Park
- Deprtment of Landscape Architecture, Chonnam National UniversityGwangju 61186, South Korea
| | - Hyun-Jin Kim
- Animal Molecular Biochemistry Laboratory, Department of Animal Science, College of Agriculture and Life Sciences, Chonnam National UniversityGwangju 61186, South Korea
| | - Su-Young Choi
- Animal Molecular Biochemistry Laboratory, Department of Animal Science, College of Agriculture and Life Sciences, Chonnam National UniversityGwangju 61186, South Korea
- Central R&D Center, B&Tech Co., Ltd.Naju 58205, South Korea
| | - Takbum Ohn
- Department of Cellular & Molecular Medicine, College of Medicine, Chosun UniversityGwangju 61452, South Korea
| | - Moon-Chang Choi
- Department of Biomedical Science, Chosun UniversityGwangju 61452, South Korea
| | - Sang-Ik Park
- Laboratory of Veterinary Pathology, College of Veterinary Medicine and BK21 Plus Project Team, Chonnam National UniversityGwangju 61186, South Korea
| | - Sung-Hak Kim
- Animal Molecular Biochemistry Laboratory, Department of Animal Science, College of Agriculture and Life Sciences, Chonnam National UniversityGwangju 61186, South Korea
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Majdalani P, Yoel U, Nasasra T, Fraenkel M, Haim A, Loewenthal N, Zarivach R, Hershkovitz E, Parvari R. Novel Susceptibility Genes Drive Familial Non-Medullary Thyroid Cancer in a Large Consanguineous Kindred. Int J Mol Sci 2023; 24:ijms24098233. [PMID: 37175943 PMCID: PMC10179265 DOI: 10.3390/ijms24098233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/30/2023] [Accepted: 05/01/2023] [Indexed: 05/15/2023] Open
Abstract
Familial non-medullary thyroid cancer (FNMTC) is a well-differentiated thyroid cancer (DTC) of follicular cell origin in two or more first-degree relatives. Patients typically demonstrate an autosomal dominant inheritance pattern with incomplete penetrance. While known genes and chromosomal loci account for some FNMTC, the molecular basis for most FNMTC remains elusive. To identify the variation(s) causing FNMTC in an extended consanguineous family consisting of 16 papillary thyroid carcinoma (PTC) cases, we performed whole exome sequence (WES) analysis of six family patients. We demonstrated an association of ARHGEF28, FBXW10, and SLC47A1 genes with FNMTC. The variations in these genes may affect the structures of their encoded proteins and, thus, their function. The most promising causative gene is ARHGEF28, which has high expression in the thyroid, and its protein-protein interactions (PPIs) suggest predisposition of PTC through ARHGEF28-SQSTM1-TP53 or ARHGEF28-PTCSC2-FOXE1-TP53 associations. Using DNA from a patient's thyroid malignant tissue, we analyzed the possible cooperation of somatic variations with these genes. We revealed two somatic heterozygote variations in XRCC1 and HRAS genes known to implicate thyroid cancer. Thus, the predisposition by the germline variations and a second hit by somatic variations could lead to the progression to PTC.
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Affiliation(s)
- Pierre Majdalani
- The Shraga Segal Department of Microbiology, Immunology & Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
- The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Uri Yoel
- Endocrinology Unit, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel
| | - Tayseer Nasasra
- Internal Medicine A, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel
| | - Merav Fraenkel
- Endocrinology Unit, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel
| | - Alon Haim
- Pediatric Endocrinology Unit, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel
| | - Neta Loewenthal
- Pediatric Endocrinology Unit, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel
| | - Raz Zarivach
- The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
- Department of Life Sciences, Faculty of Natural Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel
| | - Eli Hershkovitz
- Pediatric Endocrinology Unit, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel
| | - Ruti Parvari
- The Shraga Segal Department of Microbiology, Immunology & Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
- The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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Semnani A, Kazerouni F, Kalbasi S, Shahrokhi SZ, Rahimipour A. The association study between changes in HbA1C with rs2250486 and rs67238751 genetic variants for SLC47A1 in newly diagnosed Iranian patients with type 2 diabetes mellitus: 6 months follow-up study. Endocrinol Diabetes Metab 2023; 6:e410. [PMID: 36786075 PMCID: PMC10164423 DOI: 10.1002/edm2.410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/24/2022] [Accepted: 01/28/2023] [Indexed: 02/15/2023] Open
Abstract
OBJECTIVES One of the most well-known oral medications for the treatment of T2DM is metformin. Variants have been found in studies to be useful in detecting new genes connected to T2DM aetiology and affecting metformin's mechanism of action. In this research, we aimed to study two variations of the SLC47A1 gene; rs2250486 and rs67238751, in T2DM patients who had been taking metformin for the first 6 months after the diagnosis in the Iranian population for the first time. DESIGN AND METHODS A total of 200 individuals were recruited for the study. According to their glycosylated haemoglobin (HbA1c) levels, the patients were divided into two groups: responders (HbA1c levels were reduced by at least 1% after 6 months of metformin treatment.) and non-responders. DNA was extracted from whole blood and genotyped by Tetra ARMS PCR. High-performance liquid chromatography (HPLC) was used to measure HbA1c levels at the start of the treatment and again 6 months later. RESULTS rs2250486 variant in the dominant model reduces the HbA1C levels after 6 months of metformin treatment. In fact, when compared to the T/C + C/C genotypes, the T/T genotype improves HbA1C levels (p-value = .014). Furthermore, in the allelic model, the T allele improves HbA1C levels in comparison to the C allele (p-value = .008). After 6 months of metformin treatment, serum levels of HbA1C in responders were reduced significantly in both groups (T/T and T/C + C/C), (p-value = <.0001). However, the rs67238751 variant did not reveal a meaningful relationship with lower HbA1C levels in any of the models. CONCLUSIONS This study found that the rs2250486 variant could be associated with reducing HbA1C levels while the rs67238751 variant, had no relationship.
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Affiliation(s)
- Armina Semnani
- Department of Clinical Biochemistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Faranak Kazerouni
- Department of Medical Lab Sciences, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeid Kalbasi
- Department of Clinical Endocrinology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyedeh Zahra Shahrokhi
- Department of Biochemistry, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Ali Rahimipour
- Department of Clinical Biochemistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Kim H, Bae S, Yoon HY, Yee J, Gwak HS. Association of the SLC47A1 Gene Variant With Responses to Metformin Monotherapy in Drug-naive Patients With Type 2 Diabetes. J Clin Endocrinol Metab 2022; 107:2684-2690. [PMID: 35639991 DOI: 10.1210/clinem/dgac333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Although metformin is the first-line treatment for type 2 diabetes, the blood sugar-lowering effect of metformin varies among populations. SLC47A1 plays an important role in metformin pharmacokinetics and pharmacodynamics. OBJECTIVE We performed a systematic review and meta-analysis to investigate the association between SLC47A1 rs2289669 (G > A) and the metformin response in drug-naive patients with type 2 diabetes. METHODS Studies published until January 27, 2022, were retrieved from Cochrane CENTRAL, Embase, PubMed, and Web of Science. Two reviewers independently screened titles, abstracts, and full-text articles. Studies conducted in newly diagnosed or drug-naive patients with type 2 diabetes who received metformin monotherapy were included. A total of 6 studies involving 953 patients were included in this meta-analysis. We extracted the study characteristics and changes in glycated hemoglobin (HbA1c) levels before and after treatment according to the SLC47A1 rs2289669 genotype. Changes in HbA1c levels were analyzed using mean differences (MDs) and 95% CIs. SLC47A1 rs2289669 was associated with changes in HbA1c levels (A carrier vs GG; MD = -0.55; 95% CI, -0.91 to - 0.20; I² = 63%). The sensitivity analysis yielded similar results to the main analysis (MD range, -0.64 to -0.37). When comparing all 3 genotypes, there were significant differences in HbA1c level changes between AA vs GG and GA vs GG, but not in GA vs AA. CONCLUSION This meta-analysis showed that SLC47A1 rs2289669 is associated with the glycemic response to metformin in drug-naive patients with type 2 diabetes.
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Affiliation(s)
- Hamin Kim
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Suhyun Bae
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Ha Young Yoon
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Jeong Yee
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Hye Sun Gwak
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
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Reséndiz-Abarca CA, Flores-Alfaro E, Suárez-Sánchez F, Cruz M, Valladares-Salgado A, Del Carmen Alarcón-Romero L, Vázquez-Moreno MA, Wacher-Rodarte NA, Gómez-Zamudio JH. Altered Glycemic Control Associated With Polymorphisms in the SLC22A1 (OCT1) Gene in a Mexican Population With Type 2 Diabetes Mellitus Treated With Metformin: A Cohort Study. J Clin Pharmacol 2019; 59:1384-1390. [PMID: 31012983 DOI: 10.1002/jcph.1425] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 03/28/2019] [Indexed: 01/06/2023]
Abstract
The organic cation transporters OCT1 and OCT2 and the multidrug and toxin extrusion transporter MATE1, encoded by the SLC22A1, SLC22A2, and SLC47A1 genes, respectively, are responsible for the absorption of metformin in enterocytes, hepatocytes, and kidney cells. The aim of this study was to evaluate whether genetic variations in the SLC22A1, SLC22A2, and SLC47A1 genes could be associated with an altered response to metformin in patients with type 2 diabetes mellitus. A cohort study was conducted in 308 individuals with a diagnosis of type 2 diabetes mellitus of less than 3 years and who had metformin monotherapy. Three measurements of blood glycated hemoglobin (HbA1c ) were obtained at the beginning of the study and after 6 and 12 months. Five polymorphisms were analyzed in the SLC22A1 (rs622342, rs628031, rs594709), SLC22A2 (rs316019), and SLC47A1 (rs2289669) genes by real-time polymerase chain reaction. The results showed a significant association among genotypes CC-rs622342 (β = 1.36; P < .001), AA-rs628031 (β = 0.98; P = .032), and GG-rs594709 (β = 1.21; P = .016) in the SLC22A1 gene with an increase in HbA1c levels during the follow-up period. Additionally, a significant association was found in the CGA and CAG haplotypes with an increase in HbA1c levels compared to the highest-frequency haplotype (AGA). In conclusion, the genetic variation in the SLC22A1 gene was significantly related to the variation of the HbA1c levels, an important indicator of glycemic control in diabetic patients. This information may contribute to identifying patients with an altered response to metformin before starting their therapy.
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Affiliation(s)
- Carlos Alberto Reséndiz-Abarca
- Laboratorio de Investigación en Epidemiología Clínica y Molecular, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México.,Unidad de Investigación Médica en Bioquímica, Hospital de Especialidades "Bernardo Sepúlveda," Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Eugenia Flores-Alfaro
- Laboratorio de Investigación en Epidemiología Clínica y Molecular, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Fernando Suárez-Sánchez
- Unidad de Investigación Médica en Bioquímica, Hospital de Especialidades "Bernardo Sepúlveda," Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Miguel Cruz
- Unidad de Investigación Médica en Bioquímica, Hospital de Especialidades "Bernardo Sepúlveda," Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Adán Valladares-Salgado
- Unidad de Investigación Médica en Bioquímica, Hospital de Especialidades "Bernardo Sepúlveda," Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Luz Del Carmen Alarcón-Romero
- Laboratorio de Investigación en Epidemiología Clínica y Molecular, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, México
| | - Miguel Alexander Vázquez-Moreno
- Unidad de Investigación Médica en Bioquímica, Hospital de Especialidades "Bernardo Sepúlveda," Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Niels Agustín Wacher-Rodarte
- Unidad de Investigación en Epidemiología Clínica, Hospital de Especialidades "Bernardo Sepúlveda," Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Jaime Héctor Gómez-Zamudio
- Unidad de Investigación Médica en Bioquímica, Hospital de Especialidades "Bernardo Sepúlveda," Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
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Abstract
The mesonephros of mammals is a transient renal structure that contributes to various aspects of mammalian fetal development, including the male reproductive system, hematopoietic stem cells, and vascular endothelial cells. The mesonephros develops from the intermediate mesoderm and forms tubules that are segmented in a similar way to the nephrons of the permanent kidney (but lacking loops of Henle). Early studies have suggested that the mesonephros in marsupials and some placental mammals may perform an excretory function, but these studies have not directly shown active transport of organic anions and cations. Excretory function in the rodent mesonephros has not been investigated. Functional characterization of the earliest stages of mammalian renal development is important for our understanding of congenital disease and may help to inform the growing field of renal tissue engineering. Here, we use live uptake and efflux assays in vitro to show that the murine mesonephros is able to transport organic anions and cations through specific transporters from early in its development. Transcript analysis suggests that there are subtle differences between the transporters involved in uptake and efflux by the murine permanent metanephric tubules and by the mesonephric tubules. These data suggest that the mammalian mesonephros can provide an excretory function for the early developing embryo, in addition to the excretory function provided by the placenta.
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Affiliation(s)
- Melanie L Lawrence
- Deanery of Biomedical Science and Centre for Synthetic Biology, University of Edinburgh , United Kingdom
| | - James R Smith
- Centre for Inflammation Research, University of Edinburgh , Edinburgh , United Kingdom
| | - Jamie A Davies
- Deanery of Biomedical Science and Centre for Synthetic Biology, University of Edinburgh , United Kingdom
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Mousavi S, Kohan L, Yavarian M, Habib A. Pharmacogenetic variation of SLC47A1 gene and metformin response in type2 diabetes patients. Mol Biol Res Commun 2017; 6:91-94. [PMID: 28775995 PMCID: PMC5534524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Type 2 diabetes mellitus is a worldwide epidemic disorder with considerable health and economic consequences. Metformin is one of the most commonly prescribed oral antidiabetic drugs. Pharmacogenetic studies showed that variants in genes related to the pharmacokinetics of metformin were associated with glucose-lowering effect of metformin. The aim of this study was to evaluate pharmacogenetic variation in SLC47A1 (rs2289669) and metformin response in type 2 diabetes patients. Seventy one patients with type 2 diabetes were included in the study. The genotypes were determined by Tetra-ARMS-PCR method. There was a significant association between the study polymorphism and the response to metformin treatment with the highest HbA1C reduction in AG genotype. In the dominant model for A allele (AA+AG vs GG), patients with A allele had highest HbA1C reduction in response to metformin.
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Affiliation(s)
- Saeedeh Mousavi
- Department of Biology, Arsanjan branch, Islamic Azad University, Arsanjan, Iran
| | - Leila Kohan
- Department of Biology, Arsanjan branch, Islamic Azad University, Arsanjan, Iran,Yong researchers and elite club, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran,Corresponding Author: Department of biology, Islamic Azad University, Arsanjan branch, Arsanjan, Iran, Tel: +98-917-719-3094, Fax: +98-729-7622483 , E. mail: and
| | - Majid Yavarian
- Shiraz Nephro-Urology Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Asadollah Habib
- Department of Endocrinology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Raj GM, Mathaiyan J, Wyawahare M, Rao KS, Priyadarshini R. Genetic polymorphisms of multidrug and toxin extrusion proteins (MATE1 and MATE2) in South Indian population. ACTA ACUST UNITED AC 2017; 7:25-30. [PMID: 28546950 PMCID: PMC5439386 DOI: 10.15171/bi.2017.04] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/13/2016] [Accepted: 11/24/2016] [Indexed: 01/19/2023]
Abstract
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Introduction: Drug transporters are key determinants of pharmacokinetic and pharmacodynamic profiles of certain drugs. SLC47A1 (MATE1) and SLC47A2 (MATE2) are major efflux transporters involved in the hepatic and renal excretion of many cationic drugs including metformin. Our study was proposed to determine the normative frequencies of the single nucleotide polymorphisms (SNPs) rs2289669 and rs12943590 in the SLC47A1 and SLC47A2 genes, respectively, in South Indian population and also to compare those with those of the HapMap populations.
Methods: One hundred two unrelated healthy volunteers from South India were enrolled in the study. Genomic DNA was extracted by ‘phenol-chloroform extraction method’ from the peripheral blood leucocytes and genotyping was accomplished by real-time polymerase chain reaction using TaqMan SNP genotyping assay method.
Results: In contrast to other populations, the minor allele in SLC47A1 gene was found to be "G" with a frequency of 46.6% in South Indian population. The populations of Hans Chinese in Beijing (HCB) [P = 0.017] and Japanese in Tokyo (JPT) [P < 0.001] had significantly different genotype and allele frequencies (SNP rs2289669) compared to those of South Indian population. Similarly, in the SNP rs12943590 of SLC47A2 gene, the genotype and allele frequencies of South Indian population differed significantly from those of Yoruba in Ibadan, Nigeria (YRI) [P < 0.001] and Utah residents with Northern and Western European ancestry (CEU) [P = 0.005] populations.
Conclusion: Thus, the allele and genotype distributions of SLC47A1 and SLC47A2 gene polymorphisms were established in South Indian population and were found to be different from the frequencies of other ethnicities.
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Affiliation(s)
- Gerard Marshall Raj
- Department of Pharmacology, Sri Venkateshwaraa Medical College Hospital and Research Centre (SVMCH & RC), Puducherry, India
| | - Jayanthi Mathaiyan
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Mukta Wyawahare
- Department of General Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Katiboina Srinivasa Rao
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Rekha Priyadarshini
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
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Mizuno T, Sato W, Ishikawa K, Terao Y, Takahashi K, Noda Y, Yuzawa Y, Nagamatsu T. Significance of downregulation of renal organic cation transporter ( SLC47A1) in cisplatin-induced proximal tubular injury. Onco Targets Ther 2015. [PMID: 26203260 PMCID: PMC4506035 DOI: 10.2147/ott.s86743] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Background/aim To elucidate the mechanism responsible for developing acute kidney injury in patients with diabetes mellitus, we also evaluated the issue of whether advanced glycation endproducts (AGEs) influence the expressions of multi antimicrobial extrusion protein (MATE1/SLC47A1) in tubular cells. Materials and methods To detect changing expression of MATE1/SLC47A1 in dose- and time-dependent manners, human proximal tubular epithelial cells were incubated with AGE-aggregated-human serum albumin. As a function assay for MATE1/SLC47A1, human proximal tubular epithelial cells were incubated with cisplatin or carboplatin. Results On incubation with AGEs, the expressions of MATE1/SLC47A1 were decreased in tubular cells. In addition, the toxicities of cisplatin were increased in tubular cells that had been pretreated with AGEs. However, the toxicities of carboplatin were smaller than that of cisplatin in proximal tubular epithelial cells. Conclusion The expression of the MATE1/SLC47A1 is decreased by AGEs, which increases the risk for proximal tubular injury.
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Affiliation(s)
- Tomohiro Mizuno
- Department of Analytical Pharmacology, Meijo University Faculty of Pharmacy, Nagoya, Japan ; Department of Nephrology, School of Medicine, Fujita Health University, Toyoake, Japan ; Department of Nephrology, Nagoya University School of Medicine, Nagoya, Japan
| | - Waichi Sato
- Department of Nephrology, School of Medicine, Fujita Health University, Toyoake, Japan ; Department of Nephrology, Nagoya University School of Medicine, Nagoya, Japan
| | - Kazuhiro Ishikawa
- Department of Neuropsychopharmacology and Hospital Pharmacy, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuki Terao
- Department of Analytical Pharmacology, Meijo University Faculty of Pharmacy, Nagoya, Japan
| | - Kazuo Takahashi
- Department of Nephrology, School of Medicine, Fujita Health University, Toyoake, Japan
| | - Yukihiro Noda
- Division of Clinical Sciences and Neuropsychopharmacology, Meijo University Faculty of Pharmacy, Nagoya, Japan
| | - Yukio Yuzawa
- Department of Nephrology, School of Medicine, Fujita Health University, Toyoake, Japan
| | - Tadashi Nagamatsu
- Department of Analytical Pharmacology, Meijo University Faculty of Pharmacy, Nagoya, Japan
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He R, Zhang D, Lu W, Zheng T, Wan L, Liu F, Jia W. SLC47A1 gene rs2289669 G>A variants enhance the glucose-lowering effect of metformin via delaying its excretion in Chinese type 2 diabetes patients. Diabetes Res Clin Pract 2015; 109:57-63. [PMID: 26004431 DOI: 10.1016/j.diabres.2015.05.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 04/09/2015] [Accepted: 05/01/2015] [Indexed: 12/14/2022]
Abstract
AIMS The SLC47A1 gene encodes the multi-drug and toxic excretion-1(MATE1) protein, which plays a key role in the transport and excretion of metformin. This study is to clarify the influence of variants in SLC47A1 (rs2289669 G→A) on metformin pharmacokinetics and the long-term glucose-lowering effect of metformin. METHODS A total of 220 newly diagnosed type 2 diabetes patients were recruited, genotyped and divided into three groups by SLC47A1 genotypes (G/G, G/A, A/A). Ten patients in each group were randomly selected for metformin pharmacokinetics. All the participants received metformin oral treatment and were followed for one year. RESULTS After one-year follow-up, the decline of HbA1c level was significantly greater in subjects with variant genotype (AA) than other two groups (-2.32% [-25.4 mmol/mol] in AA vs. -1.16% [-12.7 mmol/mol] in GA, -1.07% [-11.7 mmol/mol] in GG, P<0.05). Then taking GG genotype as the referent, the association between AA genotype and change of HbA1c still existed after adjusted for age, sex, BMI, baseline HbA1c and diabetes duration (P<0.05). Pharmacokinetic parameters of metformin indicated that patients carrying MATE1 homozygous A had higher area under the plasma concentration versus time curve (AUC12h), but lower renal clearance (CLR) and renal clearance by secretion (CLSR) than other patients (all P<0.01). Multivariate lineal stepwise analysis further revealed that SLC47A1 genotype was an independent impact factor for urine excretion of metformin (P<0.01). CONCLUSIONS SLC47A1 rs2289669 G>A variants improve the glucose-lowering effect of metformin through slowing its excretion in type 2 diabetes populations.
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Affiliation(s)
- Rui He
- Department of Endocrinology and Metabolism, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai Clinical Medical Center of Diabetes, Shanghai Key Clinical Center of Metabolic Diseases, Shanghai Institute for Diabetes, Shanghai Key Laboratory of Diabetes, Shanghai 200233, China
| | - Dandan Zhang
- Department of Endocrinology and Metabolism, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai Clinical Medical Center of Diabetes, Shanghai Key Clinical Center of Metabolic Diseases, Shanghai Institute for Diabetes, Shanghai Key Laboratory of Diabetes, Shanghai 200233, China
| | - Wei Lu
- Department of Endocrinology and Metabolism, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai Clinical Medical Center of Diabetes, Shanghai Key Clinical Center of Metabolic Diseases, Shanghai Institute for Diabetes, Shanghai Key Laboratory of Diabetes, Shanghai 200233, China
| | - Taishan Zheng
- Department of Endocrinology and Metabolism, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai Clinical Medical Center of Diabetes, Shanghai Key Clinical Center of Metabolic Diseases, Shanghai Institute for Diabetes, Shanghai Key Laboratory of Diabetes, Shanghai 200233, China
| | - Lili Wan
- Department of Pharmacy, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Fang Liu
- Department of Endocrinology and Metabolism, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai Clinical Medical Center of Diabetes, Shanghai Key Clinical Center of Metabolic Diseases, Shanghai Institute for Diabetes, Shanghai Key Laboratory of Diabetes, Shanghai 200233, China.
| | - Weiping Jia
- Department of Endocrinology and Metabolism, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai Clinical Medical Center of Diabetes, Shanghai Key Clinical Center of Metabolic Diseases, Shanghai Institute for Diabetes, Shanghai Key Laboratory of Diabetes, Shanghai 200233, China.
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