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Musyoka K, Chan CW, Gutiérrez Rico EM, Omondi P, Kijogi C, Okai T, Kongere J, Ngara M, Kagaya W, Kanoi BN, Hiratsuka M, Kido Y, Gitaka J, Kaneko A. Genetic variation present in the CYP3A4 gene in Ni-Vanuatu and Kenyan populations in malaria endemicity. Drug Metab Pharmacokinet 2024; 57:101029. [PMID: 39079373 DOI: 10.1016/j.dmpk.2024.101029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 07/01/2024] [Accepted: 07/08/2024] [Indexed: 08/21/2024]
Abstract
Cytochrome P450 3A4 (CYP3A4) enzyme is involved in the metabolism of about 30 % of clinically used drugs, including the antimalarials artemether and lumefantrine. CYP3A4 polymorphisms yield enzymatic variants that contribute to inter-individual variation in drug metabolism. Here, we examined CYP3A4 polymorphisms in populations from malaria-endemic islands in Lake Victoria, Kenya, and Vanuatu, to expand on the limited data sets. We used archived dried blood spots collected from 142 Kenyan and 263 ni-Vanuatu adults during cross-sectional malaria surveys in 2013 and 2005-13, respectively, to detect CYP3A4 variation by polymerase chain reaction (PCR) and sequencing. In Kenya, we identified 14 CYP3A4 single nucleotide polymorphisms (SNPs), including the 4713G (CYP3A4∗1B; allele frequency 83.9 %) and 19382A (CYP3A4∗15; 0.7 %) variants that were previously linked to altered metabolism of antimalarials. In Vanuatu, we detected 15 SNPs, including the 4713A (CYP3A4∗1A; 88.6 %) and 25183C (CYP3A4∗18; 0.6 %) variants. Additionally, we detected a rare and novel SNP C4614T (0.8 %) in the 5' untranslated region. A higher proportion of CYP3A4 genetic variance was found among ni-Vanuatu populations (16 %) than among Lake Victoria Kenyan populations (8 %). Our work augments the scarce data sets and contributes to improved precision medicine approaches, particularly to anti-malarial chemotherapy, in East African and Pacific Islander populations.
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Affiliation(s)
- Kelvin Musyoka
- Department of Virology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Chim W Chan
- Department of Parasitology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Evelyn Marie Gutiérrez Rico
- Laboratory of Pharmacotherapy of Life-Style Related Diseases, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Protus Omondi
- Department of Virology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Caroline Kijogi
- Laboratory of Pharmacotherapy of Life-Style Related Diseases, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Takatsugu Okai
- Department of Virology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - James Kongere
- Department of Virology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Mtakai Ngara
- Island Malaria Group, Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Wataru Kagaya
- Department of Eco-epidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Bernard N Kanoi
- Centre for Research in Infectious Diseases, Directorate of Research and Innovation, Mount Kenya University, Thika, Kenya; Centre for Malaria Elimination, Mount Kenya University, Thika, Kenya
| | - Masahiro Hiratsuka
- Laboratory of Pharmacotherapy of Life-Style Related Diseases, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Yasutoshi Kido
- Department of Virology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Jesse Gitaka
- Centre for Research in Infectious Diseases, Directorate of Research and Innovation, Mount Kenya University, Thika, Kenya; Centre for Malaria Elimination, Mount Kenya University, Thika, Kenya
| | - Akira Kaneko
- Department of Parasitology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan; Island Malaria Group, Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden.
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Dheyaa Aziz N, Abbood SH, Al-Mayali AH, Hadi NR. ASSOCIATION OF SOLUTE CARRIER ORGANIC ANION TRANSPORTER 1B1 GENE POLYMORPHISM WITH RESPONSE TO ATORVASTATIN AND ASSOCIATED MYOPATHY IN IRAQI DYSLIPIDEMIA PATIENTS. POLSKI MERKURIUSZ LEKARSKI : ORGAN POLSKIEGO TOWARZYSTWA LEKARSKIEGO 2023; 51:496-503. [PMID: 38069850 DOI: 10.36740/merkur202305108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
OBJECTIVE Aim: The study aims to investigate the effect of solute carriers organic anions transporters 1B1 (SLCO1B1) gene polymorphisms rs4149056, rs2306283, rs55901008, and rs729559745 in a sample of patients with dyslipidemia, and relate it to atorvastatin response and associated myopathy. PATIENTS AND METHODS Materials and Methods: A cross sectional enrolled 200 patients both males and females of Arabic race, Iraqi nationality aged between 30-65 years. The patients were divided into two groups: Group 1 (Atorvastatin responders and tolerant), Group 2 (Atorvastatin non responder and intolerant). Blood samples collected from the patients for biochemical studies and analyzed statistically by Student T-test and Chi-square, and DNA extracted for polymerase chains reactions (PCR). RESULTS Results: The results showed insignificant association P≥0.05 between the demographic characteristics of the study population with different genotypes, and significant difference P<0.05 in the biochemical parameters regarding (T-cholesterol, triglycerides, low density lipoproteins, and Creatine kinase-MM) when comparing the two groups. Odds ratio (OR) with confidence intervals CI (95%) used to evaluate the risk association to develop myopathy and poor response to atorvastatin therapy show relevant association for CC and CT genotype of rs4149056, while rs2306283 GG genotype show low association, also rs55901008 show low association for CC genotype, and moderate association for rs72559745 genotypes GG, AG. CONCLUSION Conclusions: The mutant allele's genotypes of rs4149056, rs55901008, and rs72559745, and the wild allele genotype of rs2306283 show significant association with the development of poor response to atorvastatin and elevated the level of CK-MM plasma concentration.
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Affiliation(s)
- Noor Dheyaa Aziz
- DEPARTMENT OF CLINICAL PHARMACY, COLLEGE OF PHARMACY, UNIVERSITY OF KERBALA, KERBALA, IRAQ
| | - Sameer H Abbood
- DEPARTMENT OF PHARMACOLOGY AND THERAPEUTICS, SCHOOL OF MEDICINE, KUFA UNIVERSITY, KUFA, IRAQ
| | - Ahmed H Al-Mayali
- DEPARTMENT OF INTERNAL MEDICINE, COLLEGE OF MEDICINE, UNIVERSITY OF KERBALA, KERBALA, IRAQ
| | - Najah Rayish Hadi
- DEPARTMENT OF PHARMACOLOGY & THERAPEUTICS, FACULTY OF MEDICINE, UNIVERSITY OF KUFA, KUFA, IRAQ
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Mhaske A, Dileep K, Kumar M, Poojary M, Pandhare K, Zhang KY, Scaria V, Binukumar B. ATP7A Clinical Genetics Resource - A comprehensive clinically annotated database and resource for genetic variants in ATP7A gene. Comput Struct Biotechnol J 2020; 18:2347-2356. [PMID: 32994893 PMCID: PMC7501406 DOI: 10.1016/j.csbj.2020.08.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/25/2020] [Accepted: 08/26/2020] [Indexed: 12/21/2022] Open
Abstract
ATP7A is a critical copper transporter involved in Menkes Disease, Occipital horn Syndrome and X-linked distal spinal muscular atrophy type 3 which are X linked genetic disorders. These are rare diseases and their genetic epidemiology of the diseases is unknown. A number of genetic variants in the genes have been reported in published literature as well as databases, however, understanding the pathogenicity of variants and genetic epidemiology requires the data to be compiled in a unified format. To this end, we systematically compiled genetic variants from published literature and datasets. Each of the variants were systematically evaluated for evidences with respect to their pathogenicity and classified as per the American College of Medical Genetics and the Association of Molecular Pathologists (ACMG-AMP) guidelines into Pathogenic, Likely Pathogenic, Benign, Likely Benign and Variants of Uncertain Significance. Additional integrative analysis of population genomic datasets provides insights into the genetic epidemiology of the disease through estimation of carrier frequencies in global populations. To deliver a mechanistic explanation for the pathogenicity of selected variants, we also performed molecular modeling studies. Our modeling studies concluded that the small structural distortions observed in the local structures of the protein may lead to the destabilization of the global structure. To the best of our knowledge, ATP7A Clinical Genetics Resource is one of the most comprehensive compendium of variants in the gene providing clinically relevant annotations in gene.
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Affiliation(s)
- Aditi Mhaske
- CSIR Institute of Genomics and Integrative Biology, Mathura Road, Delhi 110 025, India
| | - K.V. Dileep
- Laboratory for Structural Bioinformatics, Center for Biosystems Dynamics Research, RIKEN, 1-7-22 Suehiro, Tsurumi, Yokohama, Kanagawa 230-0045, Japan
| | - Mukesh Kumar
- CSIR Institute of Genomics and Integrative Biology, Mathura Road, Delhi 110 025, India
- Academy of Scientific and Innovative Research, CSIR-IGIB South Campus, Mathura Road, Delhi, India
| | - Mukta Poojary
- CSIR Institute of Genomics and Integrative Biology, Mathura Road, Delhi 110 025, India
- Academy of Scientific and Innovative Research, CSIR-IGIB South Campus, Mathura Road, Delhi, India
| | - Kavita Pandhare
- CSIR Institute of Genomics and Integrative Biology, Mathura Road, Delhi 110 025, India
- Academy of Scientific and Innovative Research, CSIR-IGIB South Campus, Mathura Road, Delhi, India
| | - Kam Y.J. Zhang
- Laboratory for Structural Bioinformatics, Center for Biosystems Dynamics Research, RIKEN, 1-7-22 Suehiro, Tsurumi, Yokohama, Kanagawa 230-0045, Japan
| | - Vinod Scaria
- CSIR Institute of Genomics and Integrative Biology, Mathura Road, Delhi 110 025, India
- Academy of Scientific and Innovative Research, CSIR-IGIB South Campus, Mathura Road, Delhi, India
- Corresponding author at: CSIR-Institute of Genomics and Integrative Biology (IGIB), Mathura Road, Sukhdev Vihar, New Delhi 110025, India.
| | - B.K. Binukumar
- CSIR Institute of Genomics and Integrative Biology, Mathura Road, Delhi 110 025, India
- Academy of Scientific and Innovative Research, CSIR-IGIB South Campus, Mathura Road, Delhi, India
- Corresponding author at: CSIR-Institute of Genomics and Integrative Biology (IGIB), Mathura Road, Sukhdev Vihar, New Delhi 110025, India.
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Pamuła-Piłat J, Tęcza K, Kalinowska-Herok M, Grzybowska E. Genetic 3'UTR variations and clinical factors significantly contribute to survival prediction and clinical response in breast cancer patients. Sci Rep 2020; 10:5736. [PMID: 32235849 PMCID: PMC7109149 DOI: 10.1038/s41598-020-62662-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 03/13/2020] [Indexed: 11/09/2022] Open
Abstract
The study describes a relationship between the 3′UTR variants, clinicopathological parameters and response to chemotherapy. We analyzed 33 germline polymorphisms in 3′UTRs of ADME genes in 305 breast cancer women treated with FAC regime. Clinical endpoints of this study were: overall survival (OS), progression-free survival (PFS), recurrence-free survival (RFS) and overall response defined as treatment failure-free survival (TFFS). The shortened OS was connected with the presence of NR1/2 rs3732359 AA, SLC22A16 rs7756222 CC, as well as SLC22A16 rs9487402 allele G and clinical factors belonging to TNM classification: tumor size >1 cm, nodal involvement and presence of metastases. PFS was related to two polymorphisms PGR rs1824125 GG, PGR rs12224560 CC and SLC22A16 rs7756222 CC as well as preexisting metastases. The RFS was shortened due to the DPYD rs291593 CC, AKR1C3 rs3209896 AG and negative expression of PGR. The presence of ALDH5A1 rs1054899 allele A, lack of pre-chemotherapy surgery and negative status of PGR correlated with worse treatment response. The germline variants commonly present in the population are important factors determining the response to treatment. We observed the effect of the accumulation of genetic and clinical factors on poor survival prognosis and overall treatment response.
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Affiliation(s)
- Jolanta Pamuła-Piłat
- Department of Genetic and Molecular Diagnostics of Cancer, Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, Poland.,Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, Poland
| | - Karolina Tęcza
- Department of Genetic and Molecular Diagnostics of Cancer, Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, Poland.,Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, Poland
| | - Magdalena Kalinowska-Herok
- Department of Genetic and Molecular Diagnostics of Cancer, Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, Poland.,Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, Poland
| | - Ewa Grzybowska
- Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, Poland.
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Al-Eitan LN. Pharmacogenomic landscape of VIP genetic variants in Jordanian Arabs and comparison with worldwide populations. Gene 2020; 737:144408. [PMID: 32007583 DOI: 10.1016/j.gene.2020.144408] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/23/2020] [Accepted: 01/27/2020] [Indexed: 02/08/2023]
Abstract
The pharmacogenomics has lately become a focal field of research that investigates the influence of genetic variations of drug-metabolizing enzymes and their receptors and downstream proteins on the interindividual variability in response to medications and adverse drug reactions. Therefore, it is significantly important to study and analyze the variations in drug response between different ethnic groups and populations. The current study aimed to detect the distribution of the genotype and allele frequencies in several very important pharmacogenetic (VIP) gene polymorphisms in the Jordanian population of Arab descent. This study involved 500 unrelated Jordanian individuals of Arab descent. A total of 65 VIP variants located within 33 candidate genes were randomly selected from the PharmGKB database and genotyped using the MassARRAY (iPLEX GOLD) system. The chi-square test was used to evaluate the significant differences of minor allele and genotype frequencies between the Jordanian and other populations including CHE, ASW, CEU, CHB, CDX, GIH, GBR, JPT, LWK, MXL, TSI, YRI, CAR, and ACB. This study revealed six variants were not in Hardy Weinberg equilibrium (HWE) (P-value > 0.05) and ten SNPs showed monomorphic features. Most of the remaining forty-nine variant frequencies were significantly different from the compared ethnic groups (P-value < 0.05). The results of this study may be helpful to develop safer treatment by applying the concept of personalized medicine based on the profile of VIP pharmacogene variants of the Jordanian population of Arab descent.
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Affiliation(s)
- Laith N Al-Eitan
- Department of Applied Biological Sciences, Jordan University of Science and Technology, Irbid 22110, Jordan; Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan.
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Škarić-Jurić T, Tomas Ž, Zajc Petranović M, Božina N, Smolej Narančić N, Janićijević B, Salihović MP. Characterization of ADME genes variation in Roma and 20 populations worldwide. PLoS One 2018; 13:e0207671. [PMID: 30452466 PMCID: PMC6242375 DOI: 10.1371/journal.pone.0207671] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 11/05/2018] [Indexed: 12/13/2022] Open
Abstract
The products of the polymorphic ADME genes are involved in Absorption, Distribution, Metabolism, and Excretion of drugs. The pharmacogenetic data have been studied extensively due to their clinical importance in the appropriate drug prescription, but such data from the isolated populations are rather scarce. We analyzed the distribution of 95 polymorphisms in 31 core ADME genes in 20 populations worldwide and in newly genotyped samples from the Roma (Gypsy) population living in Croatia. Global distribution of ADME core gene loci differentiated three major clusters; (1) African, (2) East Asian, and (3) joint European, South Asian and South American cluster. The SLCO1B3 (rs4149117) and CYP3A4 (rs2242480) genes differentiated at the highest level the African group of populations, while NAT2 gene loci (rs1208, rs1801280, and rs1799929) and VKORC1 (rs9923231) differentiated East Asian populations. The VKORC1 rs9923231 was among the investigated loci the one with the largest global minor allele frequency (MAF) range; its MAF ranged from 0.027 in Nigeria to 0.924 in Han Chinese. The distribution of the investigated gene loci positions Roma population within the joined European and South Asian clusters, suggesting that their ADME gene pool is a combination of ancestral (Indian) and more recent (European) surrounding, as it was already implied by other genetic markers. However, when compared to the populations worldwide, the Croatian Roma have extreme MAF values in 10 out of the 95 investigated ADME core gene loci. Among loci which have extraordinary MAFs in Roma population two have strong proof of clinical importance: rs1799853 (CYP2C9) for warfarin dosage, and rs12248560 (CYP2C19) for clopidogrel dosage, efficacy and toxicity. This finding confirms the importance of taking the Roma as well as the other isolated populations`genetic profiles into account in pharmaco-therapeutic practice.
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Affiliation(s)
| | - Željka Tomas
- Institute for Anthropological Research, Zagreb, Croatia
| | | | - Nada Božina
- Department for Pharmacogenomics and Therapy Individualization, University Hospital Center Zagreb, Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia
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Gong X, Mei S, Li X, Li X, Zhou H, Liu Y, Zhou A, Yang L, Zhao Z, Zhang X. WITHDRAWN: Association between TPMT*3C and decreased thiopurine S-methyltransferase activity in patients with neuromyelitis optica spectrum disorders in China. J Clin Neurosci 2018:S0967-5868(17)31443-1. [PMID: 29534852 DOI: 10.1016/j.jocn.2018.01.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 01/08/2018] [Indexed: 02/07/2023]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Xiaoqing Gong
- Neuroinfection and Neuroimmunology Center, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, PR China; Department of Neurology, Beijing Shunyi District Hospital, Beijing 101300, PR China
| | - Shenghui Mei
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, PR China; Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100045, PR China
| | - Xindi Li
- Neuroinfection and Neuroimmunology Center, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, PR China
| | - Xingang Li
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, PR China; Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100045, PR China
| | - Heng Zhou
- Neuroinfection and Neuroimmunology Center, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, PR China
| | - Yonghong Liu
- Neuroinfection and Neuroimmunology Center, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, PR China
| | - Anna Zhou
- Neuroinfection and Neuroimmunology Center, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, PR China
| | - Li Yang
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, PR China; Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100045, PR China
| | - Zhigang Zhao
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, PR China; Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100045, PR China.
| | - Xinghu Zhang
- Neuroinfection and Neuroimmunology Center, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, 6 Tiantan Xili, Dongcheng District, Beijing 100050, PR China.
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Effect of UGT, SLCO, ABCB and ABCC polymorphisms on irinotecan toxicity. Med Clin (Barc) 2018; 151:425-430. [PMID: 29499902 DOI: 10.1016/j.medcli.2018.01.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 01/15/2018] [Accepted: 01/18/2018] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND OBJECTIVES Evaluate the relationship between the presence of polymorphisms in genes involved in the pharmacodynamics of irinotecan (UGT1A, SLCO1B1, ABCB1 and ABCC2) and the safety of irinotecan in the treatment of metastatic colorectal cancer (mCRC). PATIENTS AND METHODS Prospective observational, single-centre study of 30 months duration, which included patients diagnosed with mCRC treated with FOLFIRI was carried out. Toxicity was evaluated in each treatment cycle according to the Common Terminology Criteria for Adverse Events (CTCAE) v.4.0 NCI. Genomic DNA was obtained with a peripheral blood sample from an extraction method based on alkaline lysis. Genetic characterisation was performed using the LigthCycler®480 platform and allele-specific HybProbe® fluorescent probes. Analysed polymorphisms were: UGT1A1*28, UGT1A1*60, UGT1A7*1,*2,*3,*4, UGT1A7*12, UGT1A9*22, SLCO1B1 (rs11045879), ABCC2 (rs717620) and ABCB1 (rs1045642). RESULTS Thirty-four patients were included (73.5% were male, mean age 59.9 years [27-81]) in the study. Polymorphisms rs8175347, rs17868323, rs3832043, rs11692021 and rs7577677 were associated with a higher incidence of adverse effects. Furthermore, it was observed that those patients with wild-type in UGT family genes analysed have lower rates of toxicity associated with irinotecan treatment than those with certain mutated allele (P=.010). CONCLUSIONS These results suggest that the presence of certain polymorphisms in the UGT1A family of genes is related to the development of toxicity during treatment with irinotecan.
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Gong X, Mei S, Li X, Li X, Zhou H, Liu Y, Zhou A, Yang L, Zhao Z, Zhang X. Association between TPMT*3C and decreased thiopurine S-methyltransferase activity in patients with neuromyelitis optica spectrum disorders in China. Int J Neurosci 2017; 128:549-553. [PMID: 29191122 DOI: 10.1080/00207454.2017.1401621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AIM OF THE STUDY Thiopurines are effective drugs in treating neuromyelitis optica spectrum disorders and other diseases. Thiopurines' toxicity is mainly imputed to thiopurine S-methyltransferase activity. In Chinese population, the most common and important variation of thiopurine S-methyltransferase is TPMT*3C (rs1142345). This study aims to reveal the association between thiopurine S-methyltransferase activity and genetic polymorphisms of thiopurine S-methyltransferase in patients with neuromyelitis optica spectrum disorders in China. MATERIAL AND METHODS A liquid chromatography tandem mass/mass method was used to evaluate the thiopurine S-methyltransferase activity by using 6-mercapthioprine as the substrate in human erythrocyte haemolysate via 1 h incubation at 37 °C to form its methylated product 6-methylmercaptopurine. The amount of 6-methylmercaptopurine was adjusted by haematocrit and normalized to 8 × 108 erythrocytes. The selected polymorphisms of thiopurine S-methyltransferase were identified using MassARRAY system (Sequenom) and multiple SNaPshot technique. RESULTS In 69 patients with neuromyelitis optica spectrum disorders, thiopurine S-methyltransferase activity was 80.29-154.53 (127.51 ± 16.83) pmol/h/8 × 108 erythrocytes. TPMT*3C (rs1142345) was associated with lower thiopurine S-methyltransferase activity (BETA = -25.37, P = 0.011). Other selected variants were not associated with thiopurine S-methyltransferase activity. CONCLUSIONS TPMT*3C affects TPMT activity in Chinese patients with neuromyelitis optica spectrum disorders. Further studies are warranted to confirm the results. ABBREVIATIONS TPRs = thiopurines; NMOSD = neuromyelitis optica spectrum disorders; TPMT = thiopurine S-methyltransferase; LC-MS/MS = liquid chromatography tandem mass/mass; 6-MMP = 6-methylmercaptopurine; IS = internal standard; SNP = single nucleotide polymorphism; MAF = minor allele frequency; HWE = Hardy-Weinberg equilibrium; BETA = regression coefficients; UTR-3 = untranslated region 3.
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Affiliation(s)
- Xiaoqing Gong
- a Neuroinfection and Neuroimmunology Center , Department of Neurology, Beijing Tiantan Hospital , Capital Medical University , Beijing , P. R. China.,b Department of Neurology, Beijing Shunyi District Hospital , Beijing , P. R. China
| | - Shenghui Mei
- c Department of Pharmacy, Beijing Tiantan Hospital , Capital Medical University , Beijing , P. R. China.,d Department of Clinical Pharmacology, College of Pharmaceutical Sciences , Capital Medical University , Beijing , P. R. China
| | - Xindi Li
- a Neuroinfection and Neuroimmunology Center , Department of Neurology, Beijing Tiantan Hospital , Capital Medical University , Beijing , P. R. China
| | - Xingang Li
- c Department of Pharmacy, Beijing Tiantan Hospital , Capital Medical University , Beijing , P. R. China.,d Department of Clinical Pharmacology, College of Pharmaceutical Sciences , Capital Medical University , Beijing , P. R. China
| | - Heng Zhou
- a Neuroinfection and Neuroimmunology Center , Department of Neurology, Beijing Tiantan Hospital , Capital Medical University , Beijing , P. R. China
| | - Yonghong Liu
- a Neuroinfection and Neuroimmunology Center , Department of Neurology, Beijing Tiantan Hospital , Capital Medical University , Beijing , P. R. China
| | - Anna Zhou
- a Neuroinfection and Neuroimmunology Center , Department of Neurology, Beijing Tiantan Hospital , Capital Medical University , Beijing , P. R. China
| | - Li Yang
- c Department of Pharmacy, Beijing Tiantan Hospital , Capital Medical University , Beijing , P. R. China.,d Department of Clinical Pharmacology, College of Pharmaceutical Sciences , Capital Medical University , Beijing , P. R. China
| | - Zhigang Zhao
- c Department of Pharmacy, Beijing Tiantan Hospital , Capital Medical University , Beijing , P. R. China.,d Department of Clinical Pharmacology, College of Pharmaceutical Sciences , Capital Medical University , Beijing , P. R. China
| | - Xinghu Zhang
- a Neuroinfection and Neuroimmunology Center , Department of Neurology, Beijing Tiantan Hospital , Capital Medical University , Beijing , P. R. China
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Zhu GD, Brenton AA, Malhotra A, Riley BJ, Church KE, Espin FG, Moreno TA, Strickland JM, Del Tredici AL. Genotypes at rs2844682 and rs3909184 have no clinical value in identifying HLA-B*15:02 carriers. Eur J Clin Pharmacol 2015; 71:1021-3. [PMID: 26036218 DOI: 10.1007/s00228-015-1879-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 05/26/2015] [Indexed: 01/21/2023]
Affiliation(s)
- Guang-Dan Zhu
- Millennium Health, LLC, 16981 Via Tazon, San Diego, CA, 92127, USA,
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LIU J, XI H, JIANG Y, FENG Z, HOU L, LI W. Association of CYP450 single nucleotide polymorphisms with the efficacy of epidural ropivacaine during mastectomy. Acta Anaesthesiol Scand 2015; 59:640-7. [PMID: 25808509 DOI: 10.1111/aas.12501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 01/25/2015] [Indexed: 11/25/2022]
Abstract
BACKGROUND Ropivacaine is frequently used for local anesthesia in the clinic and is metabolized by cytochrome P450 (CYP450) in the liver. CYP450 polymorphisms may alter the therapeutic efficacy of drugs in patients. In this study, we selected six CYP450 polymorphisms from the dbSNP and HapMap databases, using a combination of functional analysis and Tag SNP strategies and examined these polymorphisms for association with the efficacy of epidural ropivacaine in patients during mastectomy. METHODS A total of 256 patients with breast cancer received thoracic epidural anesthesia with ropivacaine for elective mastectomy with axillary lymph node clearance. Blood samples from patients were genotyped using the SNaPshot method. RESULTS We found that patients with rs11636419 AG and GG genotypes required lower doses of epidural ropivacaine than patients with the AA genotype (corrected P = 0.024 and P < 0.001, respectively). Similarly, patients with rs17861162 CG and GG genotypes required lower doses of epidural ropivacaine than those with the CC genotype (corrected P = 0.018 and P < 0.001, respectively). There was no statistically significant association between the other four single nucleotide polymorphisms (SNPs) and total or mean ropivacaine dose, the onset of ropivacaine, or the initial dose of lidocaine. CONCLUSIONS Our present data demonstrate that CYP1A2 SNPs rs11636419 and rs17861162 alter the sensitivity of epidural ropivacaine in patients undergoing breast cancer surgery. As such, detection of these two CYP1A2 SNPs may aid in the development of effective personalized treatments for breast cancer patients.
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Affiliation(s)
- J. LIU
- Department of Anesthesiology; The Second Affiliated Hospital; Harbin Medical University; Harbin China
| | - H. XI
- Department of Anesthesiology; The Second Affiliated Hospital; Harbin Medical University; Harbin China
| | - Y. JIANG
- Department of Breast Surgery; The Third Affiliated Hospital; Harbin Medical University; Harbin China
| | - Z. FENG
- Department of Anesthesiology; The Second Affiliated Hospital; Harbin Medical University; Harbin China
| | - L. HOU
- Department of Anesthesiology; The Second Affiliated Hospital; Harbin Medical University; Harbin China
| | - W. LI
- Department of Anesthesiology; The Second Affiliated Hospital; Harbin Medical University; Harbin China
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