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Daniel P, Balušíková K, Václavíková R, Šeborová K, Ransdorfová Š, Valeriánová M, Wei L, Jelínek M, Tlapáková T, Fleischer T, Kristensen VN, Souček P, Ojima I, Kovář J. ABCB1 Amplicon Contains Cyclic AMP Response Element-Driven TRIP6 Gene in Taxane-Resistant MCF-7 Breast Cancer Sublines. Genes (Basel) 2023; 14:genes14020296. [PMID: 36833223 PMCID: PMC9957548 DOI: 10.3390/genes14020296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/26/2023] Open
Abstract
A limited number of studies are devoted to regulating TRIP6 expression in cancer. Hence, we aimed to unveil the regulation of TRIP6 expression in MCF-7 breast cancer cells (with high TRIP6 expression) and taxane-resistant MCF-7 sublines (manifesting even higher TRIP6 expression). We found that TRIP6 transcription is regulated primarily by the cyclic AMP response element (CRE) in hypomethylated proximal promoters in both taxane-sensitive and taxane-resistant MCF-7 cells. Furthermore, in taxane-resistant MCF-7 sublines, TRIP6 co-amplification with the neighboring ABCB1 gene, as witnessed by fluorescence in situ hybridization (FISH), led to TRIP6 overexpression. Ultimately, we found high TRIP6 mRNA levels in progesterone receptor-positive breast cancer and samples resected from premenopausal women.
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Affiliation(s)
- Petr Daniel
- Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, 100 00 Prague, Czech Republic
| | - Kamila Balušíková
- Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, 100 00 Prague, Czech Republic
| | - Radka Václavíková
- Toxicogenomics Unit, National Institute of Public Health, 100 00 Prague, Czech Republic
- Laboratory of Pharmacogenomics, Biomedical Center, Faculty of Medicine, Charles University, 323 00 Pilsen, Czech Republic
| | - Karolína Šeborová
- Toxicogenomics Unit, National Institute of Public Health, 100 00 Prague, Czech Republic
- Laboratory of Pharmacogenomics, Biomedical Center, Faculty of Medicine, Charles University, 323 00 Pilsen, Czech Republic
| | - Šárka Ransdorfová
- Department of Cytogenetics, Institute of Hematology and Blood Transfusion, 128 00 Prague, Czech Republic
| | - Marie Valeriánová
- Department of Cytogenetics, Institute of Hematology and Blood Transfusion, 128 00 Prague, Czech Republic
| | - Longfei Wei
- Department of Chemistry, Institute of Chemical Biology & Drug Discovery, Stony Brook University—State University of New York, Stony Brook, NY 11794, USA
| | - Michael Jelínek
- Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, 100 00 Prague, Czech Republic
| | - Tereza Tlapáková
- Department of Cell Biology, Faculty of Science, Charles University, 128 00 Prague, Czech Republic
| | - Thomas Fleischer
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, 0310 Oslo, Norway
| | - Vessela N. Kristensen
- Department of Medical Genetics, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0424 Oslo, Norway
| | - Pavel Souček
- Toxicogenomics Unit, National Institute of Public Health, 100 00 Prague, Czech Republic
- Laboratory of Pharmacogenomics, Biomedical Center, Faculty of Medicine, Charles University, 323 00 Pilsen, Czech Republic
| | - Iwao Ojima
- Department of Chemistry, Institute of Chemical Biology & Drug Discovery, Stony Brook University—State University of New York, Stony Brook, NY 11794, USA
| | - Jan Kovář
- Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, 100 00 Prague, Czech Republic
- Correspondence: ; Tel.: +420-267-102-658
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Hughes DJ, Kunická T, Schomburg L, Liška V, Swan N, Souček P. Expression of Selenoprotein Genes and Association with Selenium Status in Colorectal Adenoma and Colorectal Cancer. Nutrients 2018; 10:nu10111812. [PMID: 30469315 PMCID: PMC6266908 DOI: 10.3390/nu10111812] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/13/2018] [Accepted: 11/14/2018] [Indexed: 12/13/2022] Open
Abstract
Dietary selenium (Se) intake is essential for synthesizing selenoproteins that are important in countering oxidative and inflammatory processes linked to colorectal carcinogenesis. However, there is limited knowledge on the selenoprotein expression in colorectal adenoma (CRA) and colorectal cancer (CRC) patients, or the interaction with Se status levels. We studied the expression of seventeen Se pathway genes (including fifteen of the twenty-five human selenoproteins) in RNA extracted from disease-normal colorectal tissue pairs, in the discovery phase of sixty-two CRA/CRC patients from Ireland and a validation cohort of a hundred and five CRC patients from the Czech Republic. Differences in transcript levels between the disease and paired control mucosa were assessed by the Mann-Whitney U-test. GPX2 and TXNRD3 showed a higher expression and GPX3, SELENOP, SELENOS, and SEPHS2 exhibited a lower expression in the disease tissue from adenomas and both cancer groups (p-values from 0.023 to <0.001). In the Czech cohort, up-regulation of GPX1, SELENOH, and SOD2 and down-regulation of SELENBP1, SELENON, and SELENOK (p-values 0.036 to <0.001) was also observed. We further examined the correlation of gene expression with serum Se status (assessed by Se and selenoprotein P, SELENOP) in the Irish patients. While there were no significant correlations with both Se status markers, SELENOF, SELENOK, and TXNRD1 tumor tissue expression positively correlated with Se, while TXNRD2 and TXNRD3 negatively correlated with SELENOP. In an analysis restricted to the larger Czech CRC patient cohort, Cox regression showed no major association of transcript levels with patient survival, except for an association of higher SELENOF gene expression with both a lower disease-free and overall survival. Several selenoproteins were differentially expressed in the disease tissue compared to the normal tissue of both CRA and CRC patients. Altered selenoprotein expression may serve as a marker of functional Se status and colorectal adenoma to cancer progression.
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Affiliation(s)
- David J Hughes
- Cancer Biology and Therapeutics Group, UCD Conway Institute, University College Dublin, D04 V1W8 Dublin, Ireland.
| | - Tereza Kunická
- Biomedical Centre, Medical and Teaching School Pilsen, Charles University in Prague, 323 00 Pilsen, Czech Republic.
| | - Lutz Schomburg
- Institute for Experimental Endocrinology, University Medical School Berlin, D-13353 Berlin, Germany.
| | - Václav Liška
- Biomedical Centre, Medical and Teaching School Pilsen, Charles University in Prague, 323 00 Pilsen, Czech Republic.
- Teaching Hospital and Medical School, Charles University in Prague, 306 05 Pilsen, Czech Republic.
| | - Niall Swan
- Department of Pathology and Laboratory Medicine, St. Vincent's University Hospital, D04 T6F4 Dublin, Ireland.
| | - Pavel Souček
- Biomedical Centre, Medical and Teaching School Pilsen, Charles University in Prague, 323 00 Pilsen, Czech Republic.
- Teaching Hospital and Medical School, Charles University in Prague, 306 05 Pilsen, Czech Republic.
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Egorshina AY, Zamaraev AV, Lavrik IN, Zhivotovsky BD, Kopeina GS. Caspase-2 as an Oncosupressor and Metabolism Regulator: What Life Will Bring over the Long Run? Mol Biol 2018. [DOI: 10.1134/s0026893318050060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shen X, Li J, Liao W, Wang J, Chen H, Yao Y, Liu H, Ding K. microRNA-149 targets caspase-2 in glioma progression. Oncotarget 2018; 7:26388-99. [PMID: 27049919 PMCID: PMC5041987 DOI: 10.18632/oncotarget.8506] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 02/05/2016] [Indexed: 01/01/2023] Open
Abstract
Malignant gliomas are the most common form of intrinsic primary brain tumors worldwide. Alterations in microRNAs play a role in highly invasive malignant glioma, but detail mechanism still unknown. In this study, the role and mechanism of microRNA-149 (miR-149) in glioma are investigated. We show that miR-149 is expressed at substantially higher levels in glioma than in normal tissues. Stable overexpression of miR-149 augments potent prosurvival activity, as evidenced by promotion of cell viability, inhibition of apoptosis, and induced xenografted tumor growth in vivo. We further show that Caspase-2 is identified as a functional target of miR-149 and expression of caspase-2 is inversely associated with miR-149 in vitro. In addition, miR-149 promotes tumor survival in the U87-MG and A172 cell lines and it targets caspase-2 via inactivation of the p53 and p21 pathways. There results support a special role for miR-149 by targeting Caspase-2 to impact on p53 signaling pathway. We speculate that miR-149 has distinct biological functions in p53 wild type cells and p53 mutation cells, and the mechanisms involved remain to be explored in future. Our study suggests that targeting miR-149 may be a novel therapy strategy for treating p53 wild type glioma tumors in humans.
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Affiliation(s)
- Xiaokun Shen
- Glycobiology and Glycochemistry Laboratory, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jie Li
- Glycobiology and Glycochemistry Laboratory, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wenfeng Liao
- Glycobiology and Glycochemistry Laboratory, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Jiwen Wang
- Department of General Surgery, Zhongshan Hospital, General Surgery Institute, Fudan University, Shanghai 200032, China
| | - Huanjun Chen
- Glycobiology and Glycochemistry Laboratory, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yanli Yao
- Glycobiology and Glycochemistry Laboratory, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Houbao Liu
- Department of General Surgery, Zhongshan Hospital, General Surgery Institute, Fudan University, Shanghai 200032, China
| | - Kan Ding
- Glycobiology and Glycochemistry Laboratory, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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Kloudova A, Brynychova V, Vaclavikova R, Vrana D, Gatek J, Mrhalova M, Kodet R, Soucek P. Expression of oxysterol pathway genes in oestrogen-positive breast carcinomas. Clin Endocrinol (Oxf) 2017; 86:852-861. [PMID: 28342201 DOI: 10.1111/cen.13337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 02/10/2017] [Accepted: 03/21/2017] [Indexed: 01/05/2023]
Abstract
OBJECTIVE This study investigated whether gene expression levels of key modulators of the oxysterol signalling pathway modify the prognosis of patients with oestrogen receptor-positive (ER+) breast carcinomas via interaction with endocrine therapy. CONTEXT The prognosis of patients with ER+ breast carcinoma depends on several factors. Previous studies have suggested that some oxygenated forms of cholesterol (oxysterols) bind to oestrogen receptor and anti-oestrogen binding site which may deregulate cholesterol homoeostasis and influence effect of therapy. DESIGN The expression levels of 70 oxysterol pathway genes were evaluated in a test set of breast carcinomas differing in ER expression. The genes differentially expressed in ER+ tumours were assessed in a comprehensive set of ER+ tumours to evaluate their clinical significance. PATIENTS A total of 193 primary patients with breast carcinoma were included. MEASUREMENTS The transcript levels were determined by quantitative real-time polymerase chain reaction. RESULTS The expression levels of 23 genes were found to be specifically dysregulated in ER+ tumours compared to ER- tumours of the test set. The expression levels of ABCG2, CYP7B1, CYP24A1, CYP39A1 and CH25H genes were found to be strongly associated with disease stage; however, none of the gene expression levels were associated with disease-free survival in patients treated with endocrine therapy. CONCLUSIONS The expression of a number of oxysterol pathway genes is significantly modulated by ER expression and associated with the clinical stage of patients. However, the expression of oxysterol pathway genes was not found to modify the prognosis of ER+ patients with breast carcinoma treated with endocrine therapy.
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Affiliation(s)
- Alzbeta Kloudova
- Toxicogenomics Unit, National Institute of Public Health, Prague, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Veronika Brynychova
- Toxicogenomics Unit, National Institute of Public Health, Prague, Czech Republic
| | - Radka Vaclavikova
- Toxicogenomics Unit, National Institute of Public Health, Prague, Czech Republic
| | - David Vrana
- Toxicogenomics Unit, National Institute of Public Health, Prague, Czech Republic
- Department of Oncology, Palacky University Medical School and Teaching Hospital, Olomouc, Czech Republic
| | - Jiri Gatek
- Department of Surgery, Hospital Atlas, Zlin, Czech Republic
- University of Tomas Bata in Zlin, Zlin, Czech Republic
| | - Marcela Mrhalova
- Department of Pathology & Molecular Medicine, Second Faculty of Medicine, Charles University & Motol University Hospital, Prague, Czech Republic
| | - Roman Kodet
- Department of Pathology & Molecular Medicine, Second Faculty of Medicine, Charles University & Motol University Hospital, Prague, Czech Republic
| | - Pavel Soucek
- Toxicogenomics Unit, National Institute of Public Health, Prague, Czech Republic
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
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Brynychova V, Hlavac V, Ehrlichova M, Vaclavikova R, Nemcova-Furstova V, Pecha V, Trnkova M, Mrhalova M, Kodet R, Vrana D, Gatek J, Bendova M, Vernerova Z, Kovar J, Soucek P. Transcript expression and genetic variability analysis of caspases in breast carcinomas suggests CASP9 as the most interesting target. Clin Chem Lab Med 2017; 55:111-122. [PMID: 27327132 DOI: 10.1515/cclm-2016-0271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 05/17/2016] [Indexed: 11/15/2022]
Abstract
BACKGROUND Apoptosis plays a critical role in cancer cell survival and tumor development. We provide a hypothesis-generating screen for further research by exploring the expression profile and genetic variability of caspases (2, 3, 7, 8, 9, and 10) in breast carcinoma patients. This study addressed isoform-specific caspase transcript expression and genetic variability in regulatory sequences of caspases 2 and 9. METHODS Gene expression profiling was performed by quantitative real-time PCR in tumor and paired non-malignant tissues of two independent groups of patients. Genetic variability was determined by high resolution melting, allelic discrimination, and sequencing analysis in tumor and peripheral blood lymphocyte DNA of the patients. RESULTS CASP3 A+B and S isoforms were over-expressed in tumors of both patient groups. The CASP9 transcript was down-regulated in tumors of both groups of patients and significantly associated with expression of hormonal receptors and with the presence of rs4645978-rs2020903-rs4646034 haplotype in the CASP9 gene. Patients with a low intratumoral CASP9A/B isoform expression ratio (predicted to shift equilibrium towards anti-apoptotic isoform) subsequently treated with adjuvant chemotherapy had a significantly shorter disease-free survival than those with the high ratio (p=0.04). Inheritance of CC genotype of rs2020903 in CASP9 was associated with progesterone receptor expression in tumors (p=0.003). CONCLUSIONS Genetic variability in CASP9 and expression of its splicing variants present targets for further study.
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Molecular profile of 5-fluorouracil pathway genes in colorectal carcinoma. BMC Cancer 2016; 16:795. [PMID: 27733154 PMCID: PMC5062913 DOI: 10.1186/s12885-016-2826-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 09/30/2016] [Indexed: 12/31/2022] Open
Abstract
Background This study addresses involvement of major 5-fluorouracil (5-FU) pathway genes in the prognosis of colorectal carcinoma patients. Methods Testing set and two validation sets comprising paired tumor and adjacent mucosa tissue samples from 151 patients were used for transcript profiling of 15 5-FU pathway genes by quantitative real-time PCR and DNA methylation profiling by high resolution melting analysis. Intratumoral molecular profiles were correlated with clinical data of patients. Protein levels of two most relevant candidate markers were assessed by immunoblotting. Results Downregulation of DPYD and upregulation of PPAT, UMPS, RRM2, and SLC29A1 transcripts were found in tumors compared to adjacent mucosa in testing and validation sets of patients. Low RRM2 transcript level significantly associated with poor response to the first-line palliative 5-FU-based chemotherapy in the testing set and with poor disease-free interval of patients in the validation set irrespective of 5-FU treatment. UPP2 was strongly methylated while its transcript absent in both tumors and adjacent mucosa. DPYS methylation level was significantly higher in tumor tissues compared to adjacent mucosa samples. Low intratumoral level of UPB1 methylation was prognostic for poor disease-free interval of the patients (P = 0.0002). The rest of the studied 5-FU genes were not methylated in tumors or adjacent mucosa. Conclusions The observed overexpression of several 5-FU activating genes and DPYD downregulation deduce that chemotherapy naïve colorectal tumors share favorable gene expression profile for 5-FU therapy. Low RRM2 transcript and UPB1 methylation levels present separate poor prognosis factors for colorectal carcinoma patients and should be further investigated. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2826-8) contains supplementary material, which is available to authorized users.
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Genetic and functional analyses do not explain the association of high PRC1 expression with poor survival of breast carcinoma patients. Biomed Pharmacother 2016; 83:857-864. [DOI: 10.1016/j.biopha.2016.07.047] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 07/12/2016] [Accepted: 07/21/2016] [Indexed: 11/23/2022] Open
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Wang L, Hu T, Shen J, Zhang L, Chan RLY, Lu L, Li M, Cho CH, Wu WKK. Dihydrotanshinone I induced apoptosis and autophagy through caspase dependent pathway in colon cancer. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2015; 22:1079-87. [PMID: 26547530 DOI: 10.1016/j.phymed.2015.08.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/07/2015] [Accepted: 08/08/2015] [Indexed: 05/04/2023]
Abstract
BACKGROUND Dihydrotanshinone I (DHTS) was previously reported to exhibit the most potent anti-cancer activity among several tanshinones in colon cancer cells. Its cytotoxic action was reactive oxygen species (ROS) dependent but p53 independent. PURPOSE To further study the anti-cancer activity of DHTS and its molecular mechanisms of action in colon cancer both in vitro and in vivo. METHODS Caspase activity was detected by fluorescence assay. Apoptosis was detected by flow cytometry and TUNEL assay. Protein levels were analyzed by western blotting. Knockdown of target gene was achieved by siRNA transfection. Formation of LC3B puncta and activation of caspase-3 were detected by confocal fluorescence microscope. In vivo anti-colon cancer activity of DHTS was observed in xenograft tumors in NOD/SCID mice. RESULTS Anti-colon cancer activity of DHTS by inducing apoptosis and autophagy was observed both in vitro and in vivo. Mitochondria mediated caspase dependent pathway was essential in DHTS-induced cytotoxicity. The apoptosis induced by DHTS was suppressed by knockdown of apoptosis inducing factor (AIF), inhibition of caspase-3/9 but was increased after knockdown of caspase-2. Meantime, knockdown of caspase-2, pretreatment with Z-VAD-fmk or NAC (N-Acety-L-Cysteine) efficiently inhibited the autophagy induced by DHTS. A crosstalk between cytochrome c and AIF was also reported. CONCLUSION DHTS-induced caspase and ROS dependent apoptosis and autophagy were mediated by mitochondria in colon cancer. DHTS could be a promising leading compound for the development of anti-tumor agent or be developed as an adjuvant drug for colon cancer therapy.
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Affiliation(s)
- Lin Wang
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Lo Kwee-Seong Integrated Biomedical Sciences Building, Shatin, NT, Hong Kong, China.
| | - Tao Hu
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Lo Kwee-Seong Integrated Biomedical Sciences Building, Shatin, NT, Hong Kong, China
| | - Jing Shen
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Lo Kwee-Seong Integrated Biomedical Sciences Building, Shatin, NT, Hong Kong, China
| | - Lin Zhang
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Lo Kwee-Seong Integrated Biomedical Sciences Building, Shatin, NT, Hong Kong, China
| | - Ruby Lok-Yi Chan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Lo Kwee-Seong Integrated Biomedical Sciences Building, Shatin, NT, Hong Kong, China
| | - Lan Lu
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Lo Kwee-Seong Integrated Biomedical Sciences Building, Shatin, NT, Hong Kong, China
| | - Mingxing Li
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Lo Kwee-Seong Integrated Biomedical Sciences Building, Shatin, NT, Hong Kong, China
| | - Chi Hin Cho
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Lo Kwee-Seong Integrated Biomedical Sciences Building, Shatin, NT, Hong Kong, China
| | - William Ka Kei Wu
- Department of Anaesthesia and Intensive Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
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Kunická T, Václavíková R, Hlaváč V, Vrána D, Pecha V, Rauš K, Trnková M, Kubáčková K, Ambruš M, Vodičková L, Vodička P, Souček P. Non-coding polymorphisms in nucleotide binding domain 1 in ABCC1 gene associate with transcript level and survival of patients with breast cancer. PLoS One 2014; 9:e101740. [PMID: 25078270 PMCID: PMC4117604 DOI: 10.1371/journal.pone.0101740] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 06/10/2014] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES ATP-Binding Cassette (ABC) transporters may cause treatment failure by transporting of anticancer drugs outside of the tumor cells. Multidrug resistance-associated protein 1 coded by the ABCC1 gene has recently been suggested as a potential prognostic marker in breast cancer patients. This study aimed to explore tagged haplotype covering nucleotide binding domain 1 of ABCC1 in relation with corresponding transcript levels in tissues and clinical phenotype of breast cancer patients. METHODS The distribution of twelve ABCC1 polymorphisms was assessed by direct sequencing in peripheral blood DNA (n = 540). RESULTS Tumors from carriers of the wild type genotype in rs35623 or rs35628 exhibited significantly lower levels of ABCC1 transcript than those from carriers of the minor allele (p = 0.003 and p = 0.004, respectively). The ABCC1 transcript levels significantly increased in the order CT-GT>CC-GT>CC-GG for the predicted rs35626-rs4148351 diplotype. Chemotherapy-treated patients carrying the T allele in rs4148353 had longer disease-free survival than those with the GG genotype (p = 0.043). On the other hand, hormonal therapy-treated patients with the AA genotype in rs35628 had significantly longer disease-free survival than carriers of the G allele (p = 0.012). CONCLUSIONS Taken together, our study shows that genetic variability in the nucleotide binding domain 1 has a significant impact on the ABCC1 transcript level in the target tissue and may modify survival of breast cancer patients.
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Affiliation(s)
- Tereza Kunická
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
- 3rd Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Radka Václavíková
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
| | - Viktor Hlaváč
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
- 3rd Faculty of Medicine, Charles University, Prague, Czech Republic
| | - David Vrána
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
- Department of Oncology, Palacky University Medical School and Teaching Hospital, Olomouc, Czech Republic
| | - Václav Pecha
- Institute for the Care for Mother and Child, Prague, Czech Republic
| | - Karel Rauš
- Institute for the Care for Mother and Child, Prague, Czech Republic
| | | | - Kateřina Kubáčková
- Department of Oncology, Motol University Hospital, Prague, Czech Republic
| | - Miloslav Ambruš
- Department of Radiotherapy and Oncology, Faculty Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Ludmila Vodičková
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
- Institute of Experimental Medicine, Czech Academy of Sciences, Prague, Czech Republic
| | - Pavel Vodička
- Institute of Experimental Medicine, Czech Academy of Sciences, Prague, Czech Republic
- Institute of Biology and Medical Genetics, 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Pavel Souček
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
- * E-mail:
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Kralickova M, Liska V, Pitule P, Soucek P. Novel approaches such as pharmacogenetics and liquid biopsies in tumor treatment in the era of personalized therapy. EPMA J 2014. [PMCID: PMC4125919 DOI: 10.1186/1878-5085-5-s1-a33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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