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Jakstas T, Bartnykaite A, Padervinskis E, Vegiene A, Juozaityte E, Uloza V, Ugenskiene R. The association of E2F1 and E2F2 single nucleotide polymorphisms with laryngeal squamous cell carcinoma pathomorphological features. BMC Cancer 2024; 24:214. [PMID: 38360622 PMCID: PMC10870611 DOI: 10.1186/s12885-024-11953-z] [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: 11/07/2023] [Accepted: 02/05/2024] [Indexed: 02/17/2024] Open
Abstract
BACKGROUND Laryngeal squamous cell carcinoma (LSCC) is one of the most common types of cancer in the upper respiratory tract. It is well-known that it has a high mortality rate and poor prognosis in advanced stages. There are well-known risk factors for LSCC, though new specific and prognostic blood-based markers for LSCC development and prognosis are essential. The current study aimed to evaluate the impact of four different single nucleotide polymorphisms (SNPs), E2F1 (rs3213183 and rs3213180) and E2F2 (rs2075993 and rs3820028), on LSCC development, morphological features, and patient 5-year survival rate. METHODS A total of 200 LSCC patients and 200 controls were included in this study; both groups were matched by age and sex. In the present study, we analyzed four single nucleotide polymorphisms (SNPs) in the genes E2F1 (rs3213183 and rs3213180) and E2F2 (rs2075993 and rs3820028) and evaluated their associations with the risk of LSCC development, its clinical and morphological manifestation, and patients 5-year survival rate. Genotyping was carried out using RT-PCR. RESULTS None of the analyzed SNPs showed a direct association with LSCC development. E2F2 rs2075993 G allele carriers (OR = 4.589, 95% CI 1.050-20.051, p = 0.043) and rs3820028 A allele carriers (OR = 4.750, 95% CI 1.088-20.736, p = 0.038) had a statistically significantly higher risk for poor differentiated or undifferentiated LSCC than non-carriers. E2F1 rs3213180 GC heterozygotes were found to have a 3.7-fold increased risk for lymph node involvement (OR = 3.710, 95% CI 1.452-9.479, p = 0.006). There was no statistically significant association between investigated SNPs and patient 5-year survival rate. CONCLUSIONS The present study indicates that E2F2 rs2075993 and rs3820028 impact LSCC differentiation, whereas E2F1 rs3213180 - on lymph node involvement.
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Affiliation(s)
- Tomas Jakstas
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania.
| | - Agne Bartnykaite
- Oncology Research Laboratory, Oncology Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Evaldas Padervinskis
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Aurelija Vegiene
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Elona Juozaityte
- Oncology Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Virgilijus Uloza
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rasa Ugenskiene
- Oncology Research Laboratory, Oncology Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
- Department of Genetics and Molecular Medicine, Lithuanian University of Health Sciences, Kaunas, Lithuania
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Zupanc C, Franko A, Strbac D, Kovac V, Dolzan V, Goricar K. The association of genetic factors with serum calretinin levels in asbestos-related diseases. Radiol Oncol 2023; 57:473-486. [PMID: 38038422 PMCID: PMC10690752 DOI: 10.2478/raon-2023-0061] [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: 10/19/2023] [Accepted: 10/31/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Asbestos exposure is associated with different asbestos-related diseases, including malignant mesothelioma (MM). MM diagnosis is confirmed with immunohistochemical analysis of several markers, including calretinin. Increased circulating calretinin was also observed in MM. The aim of the study was to determine if CALB2 polymorphisms or polymorphisms in genes that can regulate calretinin expression are associated with serum calretinin levels or MM susceptibility. SUBJECTS AND METHODS The study included 288 MM patients and 616 occupationally asbestos-exposed subjects without MM (153 with asbestosis, 380 with pleural plaques and 83 without asbestos-related disease). Subjects were genotyped for seven polymorphisms in CALB2, E2F2, MIR335, NRF1 and SEPTIN7 genes using competitive allele-specific polymerase chain reaction (PCR). Serum calretinin was determined with ELISA in 545 subjects. Nonparametric tests, logistic regression and receiver operating characteristic (ROC) curve analysis were used for statistical analysis. RESULTS Carriers of at least one polymorphic CALB2 rs889704 allele had lower calretinin levels (P = 0.036). Carriers of two polymorphic MIR335 rs3807348 alleles had higher calretinin (P = 0.027), while carriers of at least one polymorphic NRF1 rs13241028 allele had lower calretinin levels (P = 0.034) in subjects without MM. Carriers of two polymorphic E2F2 rs2075995 alleles were less likely to develop MM (odds ratio [OR] = 0.64, 95% confidence interval [CI] = 0.43-0.96, P = 0.032), but the association was no longer significant after adjustment for age (P = 0.093). Optimal serum calretinin cut-off values differentiating MM patients from other subjects differed according to CALB2, NRF1, E2F2, and MIR335 genotypes. CONCLUSIONS The results of presented study suggest that genetic variability could influence serum calretinin levels. These findings could contribute to a better understanding of calretinin regulation and potentially to earlier MM diagnosis.
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Affiliation(s)
- Cita Zupanc
- Military Medical Unit-Slovenian Army, Ljubljana, Slovenia
- University of Ljubljana, Faculty of Medicine, Ljubljana, Slovenia
| | - Alenka Franko
- University of Ljubljana, Faculty of Medicine, Ljubljana, Slovenia
- University Medical Centre Ljubljana, Clinical Institute of Occupational Medicine, Ljubljana, Slovenia
| | - Danijela Strbac
- University of Ljubljana, Faculty of Medicine, Ljubljana, Slovenia
- Institute of Oncology Ljubljana, Ljubljana, Slovenia
| | - Viljem Kovac
- University of Ljubljana, Faculty of Medicine, Ljubljana, Slovenia
- Institute of Oncology Ljubljana, Ljubljana, Slovenia
| | - Vita Dolzan
- University of Ljubljana, Faculty of Medicine, Institute of Biochemistry and Molecular Genetics, Pharmacogenetics Laboratory, Ljubljana, Slovenia
| | - Katja Goricar
- University of Ljubljana, Faculty of Medicine, Institute of Biochemistry and Molecular Genetics, Pharmacogenetics Laboratory, Ljubljana, Slovenia
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Genetic Polymorphism of E2F1 Influences Susceptibility to Ovarian Cancer in a Chinese Population. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:7808726. [PMID: 35833075 PMCID: PMC9252677 DOI: 10.1155/2022/7808726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 12/02/2022]
Abstract
Purpose The present study is aimed at exploring whether rs3213172, rs3213173, and rs3213176 polymorphisms of the E2F1 gene confer risk for ovarian cancer. Methods A total of 80 patients with ovarian cancer were selected from the first affiliated hospital of Soochow University in Jiangsu Province from January 2016 to June 2021, including 48 cases that were premenopausal and 32 cases that were menopausal. 130 healthy women who participated in normal physical examinations during the same period were selected as the control group. The rs3213172, rs3213173, and rs3213176 polymorphisms of the E2F1 gene were detected by the fluorescent probe method. Results For rs3213173 and rs3213176 loci, there were no statistical significances in genotype distribution frequency between the ovarian cancer group and the control group (P > 0.05). For rs3213172 loci, a significant difference was observed in CT genotype between the ovarian cancer group and the control group (P=0.024). Conclusion E2F1 gene rs3213173 and rs3213176 polymorphisms confer no risk to ovarian cancer risk. The CT genotype of E2F1 gene rs3213172 polymorphism is associated with an increased risk of ovarian cancer, and E2F1 gene rs3213172 polymorphism may be a novel marker for the risk prediction of ovarian cancer.
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Uddin S, Singh A, Mishra V, Agrawal N, Gooi Z, Izumchenko E. Molecular drivers of oral cavity squamous cell carcinoma in non-smoking and non-drinking patients: what do we know so far? Oncol Rev 2022; 16:549. [PMID: 35340886 PMCID: PMC8941340 DOI: 10.4081/oncol.2022.549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 11/09/2021] [Indexed: 11/23/2022] Open
Abstract
Oral cavity squamous cell carcinoma (OCSCC) is one of the most common head and neck cancers worldwide. It is well known that risk factors for OCSCC include tobacco and excess alcohol consumption. However, in recent years, OCSCC incidence has been increasing in patients without these traditional risk factors. The cause of this increase is unclear and various genetic, environmental, and infectious factors have been hypothesized to play a role. Additionally, there are expert opinions that oral cancer in non-smoking, non-drinking (NSND) patients have a distinct phenotype resulting in more aggressive disease presentation and poorer prognosis. In this review, we summarize the current state of knowledge for oral cavity cancer in patients without traditional risk factors.
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Affiliation(s)
| | - Alka Singh
- Department of Medicine, Section of Hematology and Oncology
| | - Vasudha Mishra
- Department of Medicine, Section of Hematology and Oncology
| | - Nishant Agrawal
- Department of Surgery, Section of Otolaryngology-Head and Neck Surgery, University of Chicago, USA
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Selected E2F2 Polymorphisms in Oral and Oropharyngeal Squamous Cell Carcinoma. BIOMED RESEARCH INTERNATIONAL 2021; 2021:8098130. [PMID: 33860054 PMCID: PMC8024082 DOI: 10.1155/2021/8098130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 11/03/2020] [Accepted: 03/12/2021] [Indexed: 12/24/2022]
Abstract
Oral squamous cell carcinoma (OSCC) and oropharyngeal squamous cell carcinoma (OPSCC) are subgroups of head and neck squamous cell carcinoma. E2F Transcription Factor 2 (E2F2) could contribute to cancer development, because it plays a critical role in many cellular processes, including the cell cycle, proliferation, differentiation, DNA damage response, and cell death. In the current study, we assessed the associations of five E2F2 polymorphisms (rs6667575, rs3218121, rs3218211, rs3218148, and rs3218203) with OSCC and OPSCC and influence on the TNM staging and grading. This is the first such survey to concern the European population. The study included 94 primary tumour samples following surgical resection from patients, whereas the control group consisted of 99 healthy individuals. We tried a matching of cases and controls for age and sample size. DNA samples were genotyped by employing the 5′ nuclease assay for allelic discrimination. Our results suggested that the most significant difference between the control group and the cancer group was the A/G heterozygote for rs3218121. Samples containing this genotype were mostly found in the control group. In our samples, rs6667575, rs3218121, rs3218211, and rs3218148 polymorphisms may affect the course of OSCC and OPSCC, while rs3218203 was not associated with OSCC and OPSCC. However, further studies are warranted to confirm our findings.
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Singh S, Yennamalli RM, Gupta M, Changotra H. Identification of nsSNPs of transcription factor E2F1 predisposing individuals to lung cancer and head and neck cancer. Mutat Res 2020; 821:111704. [PMID: 32407972 DOI: 10.1016/j.mrfmmm.2020.111704] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/26/2020] [Accepted: 04/05/2020] [Indexed: 06/11/2023]
Abstract
E2Fs transcription factors family is involved in the G1/S transition and DNA replication and their deregulated expression have been reported in various human cancers. Studies have shown that the genetic variants of E2F1 family members play an important role in head and neck carcinogenesis. In this study, we predicted six highly deleterious nsSNPs (C227F, R252H, V295D, C298Y, R56W, and Y59C) of E2F1 gene through in silico analyses. The latter was based on protein structure, function, and amino acid conservation. Molecular dynamics studies showed a deviation of the structures of the mutant proteins from the global protein parameters. Further, a case-control study that included total 535 samples (305 cancer patients and 230 controls) was conducted to find the association of the predicted SNPs with the susceptibility to lung cancer (LC) and head and neck cancer (HNC). The genotyping was done applying in-house artificial-RFLP method. Statistical analysis showed that the mutant alleles/genotypes of rs3213172 (R252H) were found to increase ∼ 2-5 fold risk of LC and HNC in all the genetic models. These results suggest that the rs3213172C/T polymorphism of the E2F1 gene could be used as an effective biomarker for genetic susceptibility to LC and HNC in our population.
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Affiliation(s)
- Sanjay Singh
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, 173234, India
| | - Ragothaman M Yennamalli
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, 173234, India
| | - Manish Gupta
- Department of Radiotherapy and Oncology (Regional Cancer Center), Indira Gandhi Medical College, Shimla, Himachal Pradesh, 171001, India
| | - Harish Changotra
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, 173234, India.
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Cui X, Xiao D, Cui Y, Wang X. Exosomes-Derived Long Non-Coding RNA HOTAIR Reduces Laryngeal Cancer Radiosensitivity by Regulating microRNA-454-3p/E2F2 Axis. Onco Targets Ther 2019; 12:10827-10839. [PMID: 31849488 PMCID: PMC6912013 DOI: 10.2147/ott.s224881] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 11/06/2019] [Indexed: 12/27/2022] Open
Abstract
Background Studies have revealed exosomes are implicated in tumor microenvironment and tumorigenesis. Emerging evidence suggests long non-coding RNAs (lncRNAs) possess pivotal roles in laryngeal cancer progression. For this study, we aimed to find out the mechanism of exosomes and lncRNA HOTAIR in laryngeal cancer. Methods Laryngeal cancer cells-derived exosomes were initially extracted, separated and identified. Flow cytometry was applied to detect apoptosis to evaluate the effect of exosomes on cell radiosensitivity. Dual luciferase reporter gene assay, RNA pull-down and RNA immunoprecipitation assays were conducted to verify the interactions among HOTAIR, microRNA (miR)-454-3p and E2F2. The gain-and-loss functions of HOTAIR or miR-454-3p were carried out to explore their effects on TU212 and LLN cell viability, apoptosis and radiosensitivity. Levels of HOTAIR, miR-454-3p and E2F2 were detected after different treatments. An in vivo analysis was carried out in mice bearing laryngeal cancer xenografts. Results Laryngeal cancer-derived exosomes reduced laryngeal cancer cell radiosensitivity. HOTAIR expression was increased after cells were treated with exosome, and HOTAIR overexpression reduced laryngeal cancer cell radiosensitivity. Besides, HOTAIR worked as a competing endogenous RNA (ceRNA) of miR-454-3p to regulate E2F2 in laryngeal cancer cells. In vivo results were reproduced in in vivo studies, which demonstrated that HOTAIR knockdown reduced laryngeal cancer cell radiosensitivity by sponging miR-454-3p to silence E2F2. Conclusion Exosome-mediated HOTAIR acts as a ceRNA of miR-545-3p to regulate E2F2, thereby negatively regulating the radiosensitivity of laryngeal cancer cells. This study may offer novel insight into laryngeal cancer treatment.
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Affiliation(s)
- Xiangyan Cui
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun 130021, People's Republic of China
| | - Dong Xiao
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun 130021, People's Republic of China
| | - Yu Cui
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun 130021, People's Republic of China
| | - Xin Wang
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun 130021, People's Republic of China
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Singh S, Kaur S, Gupta M, Seam RK, Khosla R, Changotra H. E2F1 gene variant rs2071054 is a risk factor for head and neck and cervical cancers: A pilot study. GENE REPORTS 2019. [DOI: 10.1016/j.genrep.2019.100476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Qu Y, Feng J, Wang L, Wang H, Liu H, Sun X, Li J, Yu H. Association Between Head and Neck Cancers and Polymorphisms 869T/C, 509C/T, and 915G/C of the Transforming Growth Factor-β1 Gene: A Meta-Analysis of Case-Control Studies. MEDICAL SCIENCE MONITOR : INTERNATIONAL MEDICAL JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2019; 25:8389-8402. [PMID: 31698408 PMCID: PMC6857353 DOI: 10.12659/msm.917506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background Worldwide, head and neck cancers are the eighth most common malignancy. Single nucleotide polymorphisms (SNPs) are associated with susceptibility to cancer and sensitivity to radiotherapy and chemotherapy. The inflammatory cytokine, transforming growth factor-β1 (TGF-β1), is involved in the progression of malignancy. This study aimed to systematically review the literature and undertake a meta-analysis of case-control studies on the association between 869T/C, 509C/T, and 915G/C polymorphisms of the TGF-β1 gene and head and neck cancers. Material/Methods The published literature in the English and Chinese languages were searched to identify relevant studies reporting TGF-β1 gene polymorphisms and head and neck cancer. The PubMed, Embase, Wanfang Data, and CNKI databases were searched. Data were extracted from eligible studies, and meta-analysis was performed using Stata version 12.0 software. Results Ten case-control studies were identified. There was a significant association between the 869T/C polymorphism of the TGF-β1 gene and susceptibility to head and neck cancer. Subgroup analysis showed that the 869T/C polymorphism was not significantly associated with the histological type of head and neck cancer, but was significantly associated with susceptibility to head and neck cancer in the Asian population. The 509C/T polymorphism of the TGF-β1 gene was not significantly associated with susceptibility to nasopharyngeal cancer (NPC), but the 915G/C polymorphism was associated with susceptibility to oral cancer. Conclusions Data from this meta-analysis showed that the 869T/C and 915G/C polymorphisms of the TGF-β1 gene might be associated with susceptibility to head and neck cancer.
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Affiliation(s)
- Yanli Qu
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China (mainland)
| | - Jilong Feng
- Department of Radiation Oncology, Fifth Peoples' Hospital of Shenyang, Shenyang, Liaoning, China (mainland)
| | - Lijun Wang
- Department of Radiation Oncology, Fifth Peoples' Hospital of Shenyang, Shenyang, Liaoning, China (mainland)
| | - Huan Wang
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China (mainland)
| | - Hangyu Liu
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China (mainland)
| | - Xiaohu Sun
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China (mainland)
| | - Ji Li
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China (mainland)
| | - Hong Yu
- Department of Radiation Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China (mainland)
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Singh S, Gupta M, Sharma A, Seam RK, Changotra H. The Nonsynonymous Polymorphisms Val276Met and Gly393Ser of E2F1 Gene are Strongly Associated with Lung, and Head and Neck Cancers. Genet Test Mol Biomarkers 2018; 22:498-502. [PMID: 30036075 DOI: 10.1089/gtmb.2018.0066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
AIM The early gene factor-2 (E2F), a family of transcription factors, is involved in cell cycle regulation. Deregulated expression of most of the members of the E2F family is associated with various human cancers. In this study, we investigated the association between the E2F1 genetic variants rs3213173 (C/T) (Val276Met) and rs3213176 (G/A) (Gly393Ser) with the risk of lung cancer (LC) and head and neck cancer (HNC) in 190 patients and 230 control samples. MATERIALS AND METHODS We used polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and mutagenic primer-based PCR-RFLP methods to genotype all target polymorphisms. RESULTS The rs3213173 (C/T) polymorphism was associated with LC risk in the homozygous model (odds ratio [OR] = 2.954, 95% confidence interval [CI] 1.366-6.386; p = 0.004) as well as in heterozygous model (OR = 2.314; 95% CI = 1.369-3.912; p = 0.001). A significant association was also observed for the rs3213176 (G/A) polymorphism with LC risk in homozygous model, GG versus AA (OR = 2.750; 95% CI = 1.236-6.118; p = 0.01); in heterozygous model, GG versus GA (OR = 2.111; 95% CI = 1.256-3.549; p = 0.004); and in combined mutant GG versus GA+AA (OR = 2.214; 95% CI = 1.343-3.650; p = 0.001). The rs3213176 (G/A) marker was also associated with HNC risk. CONCLUSIONS Our findings reveal that the rs3213173 (C/T) and rs3213176 (G/A) polymorphisms of the E2F1 gene are genetic risk factors for susceptibility to LC and HNC in the North Indian Population.
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Affiliation(s)
- Sanjay Singh
- 1 Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology , Waknaghat, Himachal Pradesh, India
| | - Manish Gupta
- 2 Department of Radiotherapy and Oncology (Regional Cancer Center), Indira Gandhi Medical College , Shimla, Himachal Pradesh, India
| | - Ambika Sharma
- 1 Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology , Waknaghat, Himachal Pradesh, India
| | - Rajeev Kumar Seam
- 2 Department of Radiotherapy and Oncology (Regional Cancer Center), Indira Gandhi Medical College , Shimla, Himachal Pradesh, India
| | - Harish Changotra
- 1 Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology , Waknaghat, Himachal Pradesh, India
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Singh S, Gupta M, Seam RK, Changotra H. E2F1 genetic variants and risk of cervical cancer in Indian women. Int J Biol Markers 2018; 33:389-394. [DOI: 10.1177/1724600818768459] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Introduction: Altered expression of many E2F family members have been reported in various human cancers. In this study, we investigated the role of non-synonymous single nucleotide polymorphisms (rs3213172 C/T, rs3213173 C/T, and rs3213176 G/A) of the gene E2F1 with cervical cancer. Methods: A total of 181 samples including 90 cervical cancer patients and 91 healthy controls were genotyped. The genotype frequencies of these polymorphisms in collected samples were determined by either PCR-RFLP or PCR-ARFLP methods. SHEsis software was used to analyze the haplotypes. Results: Statistically significant differences in the alleles and the genotypes frequencies were observed in rs3213172 (C/T) and rs3213173 (C/T) polymorphisms. The rs3213172 (C/T) polymorphism was a risk factor for cervical cancer in dominant model (odds ratio (OR) 1.96; 95% confidence interval (CI) 1.07, 3.60; P = 0.02) and heterozygous model (OR 1.90; 95% CI 1.01, 3.57; P = 0.04). The rs3213173 (C/T) polymorphism increased the risk of cervical cancer in the homozygous model (OR 2.71; 95% CI 1.11, 6.58; P = 0.02). The rs3213176 (G/A) polymorphism was not associated with cervical cancer risk in any of the genotypic models. In the haplotypes analysis, three haplotypes (CTG, TCG, and TTA) were associated with the cervical cancer risk. Conclusions: These findings revealed that rs3213172 (C/T) and rs3213173 (C/T) polymorphisms and haplotypes (CTG, TCG, and TTA) of the E2F1 gene might play role in the susceptibility of cervical cancer. This is the first report showing an association of these polymorphisms with the cervical cancer risk.
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Affiliation(s)
- Sanjay Singh
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, India
| | - Manish Gupta
- Department of Radiotherapy and Oncology (Regional Cancer Center), Indira Gandhi Medical College, Circular Road, Lakkar Bazar, Shimla, Himachal Pradesh, India
| | - Rajeev Kumar Seam
- Department of Radiotherapy and Oncology (Regional Cancer Center), Indira Gandhi Medical College, Circular Road, Lakkar Bazar, Shimla, Himachal Pradesh, India
| | - Harish Changotra
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, India
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Zhang H, Sturgis E, Zhu L, Lu Z, Tao Y, Zheng H, Li G. The Modifying Effect of a Functional Variant at the miRNA Binding Site in E2F1 Gene on Recurrence of Oropharyngeal Cancer Patients with Definitive Radiotherapy. Transl Oncol 2018; 11:633-638. [PMID: 29574328 PMCID: PMC6078938 DOI: 10.1016/j.tranon.2018.02.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Accepted: 02/16/2018] [Indexed: 12/11/2022] Open
Abstract
Human papillomavirus (HPV) activates E2F1-driven transcription via the E7-RB-E2F1 pathway. A polymorphism in the 3' UTR of E2F1 gene may disrupt a binding site for miRNA and may affect its transcription level, thus modifying the susceptibility to radiotherapy and outcomes through this pathway. We evaluated the association of a polymorphism at the 3'UTR miRNA binding site of E2F1 gene (rs3213180) with risk of recurrence of SCCOP in a cohort of 1008 patients. Log-rank test and univariate and multivariable Cox models were used to evaluate the associations. Compared with patients with E2F1-rs3213180 GG homozygous genotype, the patients with E2F1-rs3213180GC+CC variant genotypes had significantly better disease-free survival (log-rank P<.001) and decreased risk of SCCOP recurrence (HR, 0.4, 95% CI, 0.3-0.5) after multivariable adjustment. Furthermore, among patients with HPV16-positive tumors, the patients with E2F1-rs3213180 GC+CC variant genotypes had significantly better disease-free survival rates (log-rank P<.001) and lower recurrence risk than those with E2F1-rs3213180 GG homozygous genotype (HR, 0.2, 95% CI, 0.1-0.4). Our findings suggest that E2F1-rs3213180 polymorphism may modulate the risk of recurrence in SCCOP patients, particularly for patients with HPV16-positive tumors of SCCOP. However, future larger population and functional studies are warranted to validate these results.
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Affiliation(s)
- Hua Zhang
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Otolaryngology-Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai,China
| | - Erich Sturgis
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Lijun Zhu
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Oral and Maxillofacial Surgery, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhongming Lu
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Otolaryngology-Head and Neck Surgery, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Ye Tao
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Otolaryngology-Head and Neck Surgery, the 2nd affiliated hospital of Anhui Medical University, Hefei, China
| | - Hongliang Zheng
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Otorhinolaryngology-Head and Neck Surgery, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China.
| | - Guojun Li
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, USA.
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13
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Gingerich MA, Smith JD, Michmerhuizen NL, Ludwig M, Devenport S, Matovina C, Brenner C, Chinn SB. Comprehensive review of genetic factors contributing to head and neck squamous cell carcinoma development in low-risk, nontraditional patients. Head Neck 2018; 40:943-954. [PMID: 29427520 DOI: 10.1002/hed.25057] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 11/22/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The past 2 decades have seen an increased incidence of head and neck squamous cell carcinoma (HNSCC) in a nontraditional, low-risk patient population (ie, ≤45 years of age, no substance use history), owing to a combination of human papillomavirus (HPV) infection and individual genetic variation. METHODS Articles positing genetic variants as contributing factors in HNSCC incidence in low-risk, nontraditional patients were identified using a PubMed search, reviewed in detail, and concisely summarized herein. RESULTS Recent data suggest that common polymorphisms in DNA repair enzymes, cell-cycle control proteins, apoptotic pathway members, and Fanconi anemia-associated genes likely modulate susceptibility to HNSCC development in low-risk, nontraditional patients. CONCLUSION At present, there is a lack of robust, comprehensive data on genetic drivers of oncogenesis in low-risk patients and a clear need for further research on genetic alterations underlying the rising incidence of HNSCC in low-risk, nontraditional patients.
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Affiliation(s)
- Morgan A Gingerich
- Program in Cellular and Molecular Biology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Joshua D Smith
- Department of Otolaryngology - Head and Neck Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Nicole L Michmerhuizen
- Department of Otolaryngology - Head and Neck Surgery, University of Michigan Medical School, Ann Arbor, Michigan.,Department of Pharmacology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Megan Ludwig
- Department of Otolaryngology - Head and Neck Surgery, University of Michigan Medical School, Ann Arbor, Michigan.,Program in Cellular and Molecular Biology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Samantha Devenport
- Department of Otolaryngology - Head and Neck Surgery, University of Michigan Medical School, Ann Arbor, Michigan.,Program in Cellular and Molecular Biology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Chloe Matovina
- Department of Otolaryngology - Head and Neck Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Chad Brenner
- Department of Otolaryngology - Head and Neck Surgery, University of Michigan Medical School, Ann Arbor, Michigan.,Program in Cellular and Molecular Biology, University of Michigan Medical School, Ann Arbor, Michigan.,Comprehensive Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan
| | - Steven B Chinn
- Department of Otolaryngology - Head and Neck Surgery, University of Michigan Medical School, Ann Arbor, Michigan.,Comprehensive Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan
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14
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Contrasting effects of an Mdm2 functional polymorphism on tumor phenotypes. Oncogene 2017; 37:332-340. [PMID: 28925402 DOI: 10.1038/onc.2017.344] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/04/2017] [Accepted: 08/08/2017] [Indexed: 12/18/2022]
Abstract
MDM2, an E3 ubiquitin ligase, is a potent inhibitor of the p53 tumor suppressor and is elevated in many human cancers that retain wild-type p53. MDM2 SNP309G is a functional polymorphism that results in elevated levels of MDM2 (due to enhanced SP1 binding to the MDM2 promoter) thus decreasing p53 activity. Mdm2SNP309G/G mice are more prone to spontaneous tumor formation than Mdm2SNP309T/T mice, providing direct evidence for the impact of this SNP in tumor development. We asked whether environmental factors impact SNP309G function and show that SNP309G cooperates with ionizing radiation to exacerbate tumor development. Surprisingly, ultraviolet B light or Benzo(a)pyrene exposure of skin shows that SNP309G allele actually protects against squamous cell carcinoma susceptibility. These contrasting differences led us to interrogate the mechanism by which Mdm2 SNP309 regulates tumor susceptibility in a tissue-specific manner. Although basal Mdm2 levels were significantly higher in most tissues in Mdm2SNP309G/G mice compared with Mdm2SNP309T/T mice, they were significantly lower in Mdm2SNP309G/G keratinocytes, the cell-type susceptible to squamous cell carcinoma. The assessment of potential transcriptional regulators in ENCODE ChIP-seq database identified transcriptional repressor E2F6 as a possible negative regulator of MDM2 expression. Our data show that E2F6 suppresses Mdm2 expression in cells harboring the SNP309G allele but not the SNP309T allele. Thus, Mdm2 SNP309G exhibits tissue-specific regulation and differentially impacts cancer risk.
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Li Y, Sturgis EM, Zhu L, Cao X, Wei Q, Zhang H, Li G. E2F transcription factor 2 variants as predictive biomarkers for recurrence risk in patients with squamous cell carcinoma of the oropharynx. Mol Carcinog 2017; 56:1335-1343. [PMID: 27864908 DOI: 10.1002/mc.22595] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/05/2016] [Accepted: 11/17/2016] [Indexed: 12/25/2022]
Abstract
Because E2F transcription factor 2 (E2F2) promoter polymorphisms have been implicated in carcinogenesis and prognosis, we investigated associations between genetic variants in five E2F2 promoter polymorphisms and recurrence risk of squamous cell carcinoma of the oropharynx (SCCOP) in 1 008 patients. A log-rank test and multivariable Cox models were used to assess the associations. Compared with patients with variant genotypes of E2F2-rs2742976 and E2F2-rs3218123, patients with common homozygous genotypes had better disease-free survival (both log-rank, P < 0.001) and lower SCCOP recurrence risk (HR, 0.4, 95% CI, 0.3-0.6 and HR, 0.3, 95% CI, 0.2-0.5, respectively) after multivariable adjustment. Furthermore, among patients with HPV16-positive tumors, those with common homozygous genotypes of E2F2-rs2742976 and E2F2-rs3218123 had better disease-free survival rates (both log-rank, P < 0.001) and lower recurrence risk (HR, 0.1, 95% CI, 0.1-0.4 and HR, 0.1, 95% CI, 0.0-0.2, respectively) than patients with variant genotypes. However, no significant differences were found for the other three polymorphisms. After combining the risk genotypes of the five polymorphisms and using the high-risk group (2-5 risk genotypes) as the reference group, we found that the low-risk groups (0 or 1 risk genotype) had significantly lower recurrence risk among all patients (HR, 0.4, 95% CI, 0.3-0.6) and among HPV16-positive patients (HR, 0.2, 95% CI, 0.1-0.5). Our findings suggest that E2F2 polymorphisms may individually or jointly modify SCCOP recurrence risk, particularly for SCCOP patients with HPV16-positive tumors. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Yuncheng Li
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science Technology, Wuhan, China.,Department of Head Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Erich M Sturgis
- Department of Head Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lijun Zhu
- Department of Head Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Oral Maxillofacial Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiaoli Cao
- Department of Head Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Ultrasound, Yantai Yuhuangding Hospital, Yantai, China
| | - Qingyi Wei
- Duke University Medical Center, Duke Cancer Institute, Durham, North Carolina
| | - Hua Zhang
- Department of Head Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Otorhinolaryngology-Head and Neck Surgery, Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Guojun Li
- Department of Head Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas
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Li Y, Sturgis EM, Yuan Y, Lu M, Cao X, Wei Q, Li G. Effect of human papillomavirus seropositivity and E2F2 promoter variants on risk of squamous cell carcinomas of oropharynx and oral cavity. Carcinogenesis 2016; 37:1070-1078. [PMID: 27609456 DOI: 10.1093/carcin/bgw095] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 08/29/2016] [Accepted: 08/30/2016] [Indexed: 01/09/2023] Open
Abstract
Given roles of HPV and genetic factors in cancer risk, we evaluated associations of HPV16 seropositivity and five E2F2 promoter variants with squamous cell carcinoma of oropharynx (SCCOP) and squamous cell carcinoma of oral cavity (SCCOC) risk in a case-control study of 325 patients and 335 cancer-free matched controls. We found that HPV16 seropositivity was significantly associated with SCCOP risk (aOR, 5.4, 95%CI, 3.7-8.9) but not SCCOC (aOR, 0.8, 95%CI, 0.4-1.5), while each E2F2 polymorphism had no significant main effect on SCCOP and SCCOC risk. However, after combining HPV serological status and E2F2 promoter variants together, the modification effect of HPV serology and individual or combined risk genotypes of five polymorphisms on risk was significantly higher among SCCOP than among SCCOC. Furthermore, the stratified analysis by smoking status showed that all such modifying effects aforementioned on SCCOP were more pronounced in never smokers than in smokers. These findings are in agreement with those of previous studies, in which a majority of SCCOP were caused by HPV infection, whereas most SCCOC were found to be caused by smoking and drinking. Taken together, these findings indicate that the risk of SCCOP as opposed to SCCOC associated with HPV16 seropositivity was modified by E2F2 promoter variants either individually or jointly, especially in never smokers.
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Affiliation(s)
- Yuncheng Li
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan 430022 , China.,Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center , Houston, TX 77030 , USA
| | - Erich M Sturgis
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center , Houston, TX 77030 , USA.,Department of Epidemiology, The University of Texas MD Anderson Cancer Center , Houston, TX 77030 , USA
| | - Ying Yuan
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center , Houston, TX 77030 , USA.,Department of Radiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai 200011 , China
| | - Meixia Lu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center , Houston, TX 77030 , USA.,Department of Epidemiology and Biostatistics, School of Public Health, Huazhong University of Science and Technology , Wuhan 430030 , China
| | - Xiaoli Cao
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center , Houston, TX 77030 , USA.,Department of Ultrasound, Yantai Yuhuangding Hospital , Yantai 264000 , China and
| | - Qingyi Wei
- Duke Cancer Institute, Duke University Medical Center , Durham, NC 27710 , USA
| | - Guojun Li
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center , Houston, TX 77030 , USA.,Department of Epidemiology, The University of Texas MD Anderson Cancer Center , Houston, TX 77030 , USA
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17
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Yuan Y, Sturgis EM, Zhu L, Lu M, Li Y, Wei Q, Li G. A functional variant at the miRNA binding site in E2F1 gene is associated with risk and tumor HPV16 status of oropharynx squamous cell carcinoma. Mol Carcinog 2016; 56:1100-1106. [PMID: 27677255 DOI: 10.1002/mc.22576] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 09/23/2016] [Indexed: 12/20/2022]
Abstract
Human papillomavirus (HPV) activates E2F1-driven transcription via the E7-RB1-E2F pathway. Genetic polymorphisms in the 3' untranslated region (UTR) targeted by miRNAs can affect the regulation of target genes and individual cancer risk. Thus, we hypothesized that a polymorphism at the 3'UTR miRNA binding site of E2F1 gene (rs3213180) was associated with risk of oral squamous cell carcinoma (OSCC) and tumor HPV status of oropharynx squamous cell carcinoma (OPSCC). We determined the E2F1rs3213180 polymorphism and HPV16 L1 serology of 325 OSCC patients and 335 controls, and tumor HPV16 status of 552 OPSCC. Logistic regression models were used to calculate associations of E2F1rs3213180 polymorphism with risk of HPV-associated OSCC and tumor HPV status of OPSCC. The risk of HPV-associated OSCC was modified by the E2F1rs3213180 polymorphism. Patients with both HPV seropositivity and the Ins/Del or Ins/Ins genotype of E2F1rs3213180 had the highest risk of OSCC, while the lowest risk was detected in patients with HPV seronegativity and the Del/Del genotype. A similar and more prominent effect was detected in OPSCC, but not in oral cavity squamous cell carcinoma (OCSCC) patients. Notably, that effect trend was pronounced in never-smokers and never-drinkers. Furthermore, the patients with the E2F1rs3213180 Ins/Del or Ins/Ins genotype were 2.9 times more likely to have HPV-positive tumors than those with the Del/Del genotype. Our results suggest that the E2F1rs3213180 polymorphism may influence susceptibility to HPV-associated OSCC, particularly for OPSCC, never-smokers and never-drinkers, but not for patients with OCSCC. Additional larger population and functional studies are warranted to confirm our findings. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Ying Yuan
- Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Radiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Erich M Sturgis
- Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Epidemiology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lijun Zhu
- Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Oral and Maxillofacial Surgery, Guangdong General Hospital and Guangdong Academy of Medical Science, Guangzhou, China
| | - Meixia Lu
- Department of Epidemiology and Biostatistics, School of Public Health, Huazhong University of Science and Technology, Wuhan, China
| | - Yuncheng Li
- Department of Otorhinolaryngology, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qingyi Wei
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina
| | - Guojun Li
- Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Epidemiology, University of Texas MD Anderson Cancer Center, Houston, Texas
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Rubanovich AV, Khromov-Borisov NN. Genetic risk assessment of the joint effect of several genes: Critical appraisal. RUSS J GENET+ 2016. [DOI: 10.1134/s1022795416070073] [Citation(s) in RCA: 4] [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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19
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HUI LIAN, WU HUA, YANG NING, GUO XING, JANG XUEJUN. Identification of prognostic microRNA candidates for head and neck squamous cell carcinoma. Oncol Rep 2016; 35:3321-30. [DOI: 10.3892/or.2016.4698] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 01/11/2016] [Indexed: 11/05/2022] Open
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20
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LIANG YUXIANG, LU JIANMING, MO RUJUN, HE HUICHAN, XIE JIAN, JIANG FUNENG, LIN ZHUOYUAN, CHEN YANRU, WU YONGDING, LUO HONGWEI, LUO ZHENG, ZHONG WEIDE. E2F1 promotes tumor cell invasion and migration through regulating CD147 in prostate cancer. Int J Oncol 2016; 48:1650-8. [DOI: 10.3892/ijo.2016.3364] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 01/11/2016] [Indexed: 11/06/2022] Open
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21
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Chen JH, Liang YX, He HC, Chen JY, Lu JM, Chen G, Lin ZY, Fu X, Ling XH, Han ZD, Jiang FN, Zhong WD. Overexpression of PDZ-binding kinase confers malignant phenotype in prostate cancer via the regulation of E2F1. Int J Biol Macromol 2015; 81:615-23. [DOI: 10.1016/j.ijbiomac.2015.08.048] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 08/16/2015] [Accepted: 08/21/2015] [Indexed: 12/13/2022]
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Exploring Genetic Factors Involved in Huntington Disease Age of Onset: E2F2 as a New Potential Modifier Gene. PLoS One 2015; 10:e0131573. [PMID: 26148071 PMCID: PMC4493078 DOI: 10.1371/journal.pone.0131573] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 06/03/2015] [Indexed: 01/09/2023] Open
Abstract
Age of onset (AO) of Huntington disease (HD) is mainly determined by the length of the CAG repeat expansion (CAGexp) in exon 1 of the HTT gene. Additional genetic variation has been suggested to contribute to AO, although the mechanism by which it could affect AO is presently unknown. The aim of this study is to explore the contribution of candidate genetic factors to HD AO in order to gain insight into the pathogenic mechanisms underlying this disorder. For that purpose, two AO definitions were used: the earliest age with unequivocal signs of HD (earliest AO or eAO), and the first motor symptoms age (motor AO or mAO). Multiple linear regression analyses were performed between genetic variation within 20 candidate genes and eAO or mAO, using DNA and clinical information of 253 HD patients from REGISTRY project. Gene expression analyses were carried out by RT-qPCR with an independent sample of 35 HD patients from Basque Country Hospitals. We found suggestive association signals between HD eAO and/or mAO and genetic variation within the E2F2, ATF7IP, GRIN2A, GRIN2B, LINC01559, HIP1 and GRIK2 genes. Among them, the most significant was the association between eAO and rs2742976, mapping to the promoter region of E2F2 transcription factor. Furthermore, rs2742976 T allele patient carriers exhibited significantly lower lymphocyte E2F2 gene expression, suggesting a possible implication of E2F2-dependent transcriptional activity in HD pathogenesis. Thus, E2F2 emerges as a new potential HD AO modifier factor.
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Mostowska A, Hozyasz KK, Wójcicki P, Galas-Filipowicz D, Lasota A, Dunin-Wilczyńska I, Lianeri M, Jagodziński PP. Genetic variants in BRIP1 (BACH1) contribute to risk of nonsyndromic cleft lip with or without cleft palate. ACTA ACUST UNITED AC 2014; 100:670-8. [PMID: 25045080 DOI: 10.1002/bdra.23275] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 04/12/2014] [Accepted: 06/02/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND The etiology of nonsyndromic cleft lip with or without cleft palate (NSCL/P) is very complex and still not well elucidated. Given the critical role of DNA damage repair in the embryonic development, we decided to test the hypothesis that polymorphisms of selected DNA repair genes might contribute to the risk of NSCL/P in the Polish population. METHODS Analysis of 36 polymorphisms in 12 DNA damage repair genes (ATM, BLM, BRCA1, BRIP1, E2F1, MLH1, MRE11A, MSH2, MSH6, NBN, RAD50, and RAD51) was conducted using TaqMan assays in a group of 263 NSCL/P patients and matched control group (n = 526). RESULTS Statistical analysis of genotyping results revealed that nucleotide variants in the BRIP1 (BACH1) gene were associated with the risk of NSCL/P. Under assumption of a dominant model, the calculated odds ratios (ORs) for BRIP1 rs8075370 and rs9897121 were 1.689 (95% confidence interval [CI], 1.249-2.282; p = 0.0006) and 1.621 (95% CI, 1.200-2.191; p = 0.0016), respectively. These results were statistically significant even after applying multiple testing correction. Additional evidence for a causative role of BRIP1 in NSCL/P etiology was provided by haplotype analysis. Borderline association with a decreased risk of this anomaly was also observed for BLM rs401549 (ORrecessive = 0.406; 95% CI, 0.223-1.739; p = 0.002) and E2F1 rs2071054 (ORdominant = 0.632; 95% CI, 0.469-0.852; p = 0.003). CONCLUSION Our study suggests that polymorphic variants of DNA damage repair genes play a role in the susceptibility to NSCL/P. BRIP1 might be novel candidate gene for this common developmental anomaly.
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Affiliation(s)
- Adrianna Mostowska
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Poznan, Poland
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Genetic Susceptibility to Head and Neck Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2014; 89:38-48. [DOI: 10.1016/j.ijrobp.2013.09.034] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 09/16/2013] [Accepted: 09/17/2013] [Indexed: 01/28/2023]
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Functional single nucleotide polymorphisms of the RASSF3 gene and susceptibility to squamous cell carcinoma of the head and neck. Eur J Cancer 2013; 50:582-92. [PMID: 24295637 DOI: 10.1016/j.ejca.2013.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 11/05/2013] [Accepted: 11/10/2013] [Indexed: 12/26/2022]
Abstract
BACKGROUND RASSF3 suppresses tumour formation through uncertain mechanisms, but it is an important gene of p53-dependent apoptosis. RASSF3 depletion impairs DNA repair after DNA damage, leading to polyploidy. The authors hypothesised that potential functional single-nucleotide polymorphisms (SNPs) of RASSF3 are associated with risk of squamous cell carcinoma of the head and neck (SCCHN). METHODS The authors used a functional SNP approach to evaluate the associations between common (minor allele frequency⩾0.05), putative functional variants in RASSF3 and risk of SCCHN. Four selected such functional SNPs (rs6581580 T>G, rs7313765 G>A, rs12311754 G>C and rs1147098 T>C) in RASSF3 were identified and genotyped in 1087 patients and 1090 cancer-free controls in a non-Hispanic white population. RESULTS The authors found that two SNPs were significantly associated with SCCHN risk. Carriers of the variant rs6581580G and rs7313765A alleles were at a reduced SCCHN risk, compared with the corresponding common homozygotes [adjusted odds ratio (OR)=0.75 and 0.73 and 95% confidence interval (CI)=0.62-0.91 and 0.60-0.88, respectively, for dominant models; and Ptrend=0.012 and 0.041, respectively, for additive models], particularly for non-oropharyngeal tumours (adjusted OR=0.68 and 0.60 and 95% CI=0.53-0.86 and 0.47-0.77, respectively, for dominant models). In the genotype-phenotype correlation analysis of peripheral blood mononuclear cells from 102 cancer-free controls, the rs6581580 GG genotype was associated with significantly increased expression levels of RASSF3 mRNA (P=0.038), compared with the TT genotype. Additional functional experiments further showed that variant G allele of rs6581580 had a significantly stronger binding affinity to the nuclear protein extracts than the T allele. CONCLUSION Taken together, these findings indicate that the RASSF3 promoter rs6581580 T>G SNP is potentially functional, modulating susceptibility to SCCHN among non-Hispanic whites. Larger replication studies are needed to confirm our findings.
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Current World Literature. Curr Opin Oncol 2013; 25:325-30. [DOI: 10.1097/cco.0b013e328360f591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Zhao Y, Tang L, Nie W, Wang Z, Guan X. Functional variants at the miRNA binding sites of the E2F1 gene and its mRNA expression. Oncol Lett 2012; 5:398-402. [PMID: 23255957 DOI: 10.3892/ol.2012.999] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 10/24/2012] [Indexed: 01/20/2023] Open
Abstract
The transcription factor E2F1 is a key regulator of cell proliferation and apoptosis, and deregulated expression of E2F1 has been frequently found in a number of malignancies. Previous studies have indentified that E2F1 genetic 3' untranslated region (3'UTR) microRNA (miRNA) binding site variants are significantly associated with cancer risk; however, the roles of genetic variants in the E2F1 3'UTR in its post-transcriptional regulation have not been elucidated. Hence, using mRNA expression data from the HapMap online database, we analyzed the association between the variants at the miRNA binding sites of E2F1 and its mRNA expression. In the present study, we report the identification of 5 variants of putative miRNA binding sites in the E2F1 3'UTR by bioinformatic analysis. Among them, rs3213180 was found to be significantly associated with E2F1 expression in lymphoblastoid cell lines from the HapMap database (P=0.045); however, no significant association was demonstrated in this study for rs3213182 (P=0.345) and rs3213183 (P=0.402). This study demonstrated that rs3213180 may be a putative variant mediating the post-transcriptional regulation of the E2F1 target gene. In conclusion, 3'UTR polymorphism is significantly associated with E2F1 expression in lymphoblastoid cell lines. However, this finding requires validation in further functional analysis of the underlying mechanism involving E2F1 transcriptional activity associated with variants in the 3'UTR.
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