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Hu J, Xu Z, Ye Z, Li J, Hao Z, Wang Y. The association between single nucleotide polymorphisms and ovarian cancer risk: A systematic review and network meta-analysis. Cancer Med 2022; 12:541-556. [PMID: 35637613 PMCID: PMC9844622 DOI: 10.1002/cam4.4891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/10/2022] [Accepted: 05/16/2022] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND The relationship between single nucleotide polymorphisms (SNPs) and ovarian cancer (OC) risk remains controversial. This systematic review and network meta-analysis was aimed to determine the association between SNPs and OC risk. METHODS Several databases (PubMed, EMBASE, China National Knowledge Infrastructure, Wanfang databases, China Science and Technology Journal Database, and China Biology Medicine disc) were searched to summarize the association between SNPs and OC published throughout April 2021. Direct meta-analysis was used to identify SNPs that could predict the incidence of OC. Ranking probability resulting from network meta-analysis and the Thakkinstian's algorithm was used to select the most appropriate gene model. The false positive report probability (FPRP) and Venice criteria were further tested for credible relationships. Subgroup analysis was also carried out to explore whether there are racial differences. RESULTS A total of 63 genes and 92 SNPs were included in our study after careful consideration. Fok1 rs2228570 is likely a dominant risk factor for the development of OC compared to other selected genes. The dominant gene model of Fok1 rs2228570 (pooled OR = 1.158, 95% CI: 1.068-1.256) was determined to be the most suitable model with a FPRP <0.2 and moderate credibility. CONCLUSIONS Fok1 rs2228570 is closely linked to OC risk, and the dominant gene model is likely the most appropriate model for estimating OC susceptibility.
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Affiliation(s)
- Jia Hu
- Department of GastroenterologyThe Second Xiangya Hospital, Central South UniversityChangshaChina,Research Center of Digestive DiseaseThe Second Xiangya Hospital, Central South UniversityChangshaChina
| | - Zhe Xu
- Department of Pharmacy, Xiangya HospitalCentral South UniversityChangshaChina
| | - Zhuomiao Ye
- Department of Oncology, Xiangya HospitalCentral South UniversityChangshaChina
| | - Jin Li
- Xiangya School of MedicineCentral South UniversityChangshaChina
| | - Zhinan Hao
- Department of Gastrointestinal SurgeryHebei General HospitalShijiazhuangChina
| | - Yongjun Wang
- Department of GastroenterologyThe Second Xiangya Hospital, Central South UniversityChangshaChina,Research Center of Digestive DiseaseThe Second Xiangya Hospital, Central South UniversityChangshaChina
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2
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Wujcicka W, Zajac A, Szyllo K, Smolarz B, Romanowicz H, Stachowiak G. Association of SNPs in CDKN2A (P14ARF) Tumour Suppressor Gene With Endometrial Cancer in Postmenopausal Women. In Vivo 2020; 34:943-951. [PMID: 32111808 DOI: 10.21873/invivo.11862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND/AIM This research was aimed to evaluate the association between three selected single nucleotide polymorphisms (SNPs) within the CDKN2A (P14ARF) tumour suppressor gene and the incidence of endometrial cancer (EC) in postmenopausal women. PATIENTS AND METHODS The study included 194 postmenopausal women; 144 with EC and 50 non-cancer controls. Genotypes in P14ARF rs3088440, rs3731217 and rs3731245 polymorphisms were assayed using PCR-RFLP and confirmed by sequencing. RESULTS Regarding the rs3088440 polymorphism, CT, and CT-TT genotypes, were more prevalent among EC patients than in controls (OR=5.55, p=0.023, OR=5.29, p=0.027; and OR=2.92, p=0.023, respectively). The T allele within rs3088440 was more prevalent in EC females than in controls (χ2=4.7, p=0.030). Considering rs3731217, TG and TG-GG genotypes were less prevalent among EC (OR=0.34, p=0.024 or p=0.023; and OR=0.38, p=0.035, respectively). CONCLUSION Polymorphisms in the CDKN2A gene are associated with EC in postmenopausal women.
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Affiliation(s)
- Wioletta Wujcicka
- Scientific Laboratory of the Center of Medical Laboratory Diagnostics and Screening, Polish Mother's Memorial Hospital - Research Institute, Lodz, Poland .,Department of Obstetrics, Perinatology and Gynecology, Polish Mother's Memorial Hospital - Research Institute, Department of Gynecology and Obstetrics, Medical University of Lodz, Lodz, Poland
| | - Agnieszka Zajac
- Department of Operative Gynecology and Gynecologic Oncology, Polish Mother's Memorial Hospital - Research Institute, Lodz, Poland
| | - Krzysztof Szyllo
- Department of Operative Gynecology and Gynecologic Oncology, Polish Mother's Memorial Hospital - Research Institute, Lodz, Poland
| | - Beata Smolarz
- Laboratory of Cancer Genetics of the Department of Clinical Pathomorphology, Polish Mother's Memorial Hospital - Research Institute, Lodz, Poland
| | - Hanna Romanowicz
- Department of Clinical Pathomorphology, Polish Mother's Memorial Hospital - Research Institute, Lodz, Poland
| | - Grzegorz Stachowiak
- Department of Operative Gynecology and Gynecologic Oncology, Polish Mother's Memorial Hospital - Research Institute, Lodz, Poland
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3
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Gohari N, Saadat I. CDKN1B 109VG and CDKN2A (540CG & 580CT) polymorphisms and susceptibility to colorectal cancer: A case-control study of the Iranian population. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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4
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Tsakogiannis D, Moschonas GD, Bella E, Kyriakopoulou Z, Amoutzias GD, Dimitriou TG, Kottaridi C, Markoulatos P. Association of p16 (CDKN2A) polymorphisms with the development of HPV16‐related precancerous lesions and cervical cancer in the Greek population. J Med Virol 2017; 90:965-971. [DOI: 10.1002/jmv.24996] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 11/17/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Dimitris Tsakogiannis
- University of ThessalySchool of Health SciencesDepartment of Biochemistry & BiotechnologyMicrobiology‐Virology LaboratoryBIOPOLISLarissaGreece
| | - George D. Moschonas
- University of ThessalySchool of Health SciencesDepartment of Biochemistry & BiotechnologyMicrobiology‐Virology LaboratoryBIOPOLISLarissaGreece
| | - Evangelia Bella
- University of ThessalySchool of Health SciencesDepartment of Biochemistry & BiotechnologyMicrobiology‐Virology LaboratoryBIOPOLISLarissaGreece
| | - Zaharoula Kyriakopoulou
- University of ThessalySchool of Health SciencesDepartment of Biochemistry & BiotechnologyMicrobiology‐Virology LaboratoryBIOPOLISLarissaGreece
| | - Grigoris D. Amoutzias
- University of ThessalySchool of Health SciencesDepartment of Biochemistry & BiotechnologyBioinformatics LaboratoryBIOPOLISLarissaGreece
| | - Tilemachos G. Dimitriou
- University of ThessalySchool of Health SciencesDepartment of Biochemistry & BiotechnologyMicrobiology‐Virology LaboratoryBIOPOLISLarissaGreece
| | - Christine Kottaridi
- Department of Cytopathology, National and Kapodistrian University of Athens, Medical School“ATTIKON” University Hospital, Rimini, HaidariAthensGreece
| | - Panayotis Markoulatos
- University of ThessalySchool of Health SciencesDepartment of Biochemistry & BiotechnologyMicrobiology‐Virology LaboratoryBIOPOLISLarissaGreece
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Sibin MK, Dhananjaya IB, Narasingarao KVL, Harshitha SM, Jeru-Manoj M, Chetan GK. Two gene polymorphisms (rs4977756 and rs11515) in CDKN2A/B and glioma risk in South Indian population. Meta Gene 2016; 9:215-8. [PMID: 27617221 PMCID: PMC5006130 DOI: 10.1016/j.mgene.2016.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 06/14/2016] [Accepted: 07/13/2016] [Indexed: 11/29/2022] Open
Abstract
Gliomas are most common neoplasms in the CNS with unknown aetiology. Gene polymorphisms have been studied in glioma to check its risk in different population. CDKN2A, commonly altered tumor suppressor gene polymorphisms were recently shown to be associated with glioma in Caucasians. Present study evaluated potential association between two SNPs in CDKN2A/B gene with glioma risk in South Indian population with a total of 128 cases and 140 control subjects. Allelic discrimination assay was used for the genotyping and the association of each SNP with glioma risk were calculated using odds ratio and 95% CI. There was no association between rs4977756 polymorphism and glioma risk in south Indian population. GG genotype had a non-significant low risk in glioma (OR = 0.69). rs11515 polymorphism was not in Hardy Weinberg Equilibrium in our sample, so it was not considered for association studies. There was difference in genotype in tissue samples paired with blood samples for rs4977756 polymorphism, suggesting the importance of tissue SNP status in association studies. These results show that these two polymorphisms may not contribute to risk for glioma in South Indian population.
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Affiliation(s)
- M K Sibin
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India
| | - I Bhat Dhananjaya
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India
| | - K V L Narasingarao
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India
| | - S M Harshitha
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India
| | - M Jeru-Manoj
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India
| | - G K Chetan
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India
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6
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Cander S, Karkucak M, Gul OO, Sag SO, Yakut T, Ersoy C, Tuncel E, Erturk E. Association between p16(CDKN2A) C540G polymorphism and tumor behavior in prolactinoma: A single-center study. Biomed Rep 2014; 2:589-595. [PMID: 24944814 DOI: 10.3892/br.2014.281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 05/02/2014] [Indexed: 12/16/2022] Open
Abstract
Pituitary tumors usually originate as benign sporadic adenomas and develop into invasive and aggressive tumors such as prolactinomas, which are common functioning pituitary adenomas. The aim of the present study was to examine the association between the tumor behavior in prolactinomas and the p16(CDKN2A) gene polymorphism occurring at the 3'-untranslated region of exon 3 (C540G). A total of 104 patients with prolactinoma were included and assigned to two groups based on invasive vs. non-invasive tumor behavior. Ki67 indices were recorded according to histopathology results. Genotypic analysis of the p16(CDKN2A) C540G polymorphism was carried out using a modified polymerase chain reaction-restriction fragment length polymorphism assay. The corresponding frequencies for CC, CG and GG genotypes in non-invasive vs. invasive tumors were 61.5, 30.8, 7.7 and 64.1, 28.2, 7.7%, respectively (not significant). The observed CG genotype frequency was higher compared with previous studies. In addition, the patients with giant adenomas or a high Ki67 index had a higher frequency of the CG genotype as compared with the other subgroups, although the differences were not significant (46.2 and 42.9%, respectively). In conclusion, a higher frequency of the C540G CG genotype of the CDKN2A gene was found among patients with prolactinoma in comparison with previous studies. These frequencies were also higher in the subgroups with elevated Ki67 or giant adenomas. Further studies are required to improve the definition of the role of the CG genotype in the development and progression of tumors in prolactinomas.
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Affiliation(s)
- Soner Cander
- Department of Endocrinology and Metabolism, Uludag University Medical School, Gorukle, Bursa 16059, Turkey ; Department of Endocrinology and Metabolism, Sevket Yilmaz Education and Research Hospital, Osmangazi, Bursa 16230, Turkey
| | - Mutlu Karkucak
- Department of Medical Genetic, Uludag University Medical School, Gorukle, Bursa 16059, Turkey
| | - Ozen Oz Gul
- Department of Endocrinology and Metabolism, Uludag University Medical School, Gorukle, Bursa 16059, Turkey
| | - Sebnem Ozemri Sag
- Department of Medical Genetic, Uludag University Medical School, Gorukle, Bursa 16059, Turkey
| | - Tahsin Yakut
- Department of Medical Genetic, Uludag University Medical School, Gorukle, Bursa 16059, Turkey
| | - Canan Ersoy
- Department of Endocrinology and Metabolism, Uludag University Medical School, Gorukle, Bursa 16059, Turkey
| | - Ercan Tuncel
- Department of Endocrinology and Metabolism, Uludag University Medical School, Gorukle, Bursa 16059, Turkey
| | - Erdinc Erturk
- Department of Endocrinology and Metabolism, Uludag University Medical School, Gorukle, Bursa 16059, Turkey
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7
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Kis A, Tatár TZ, Gáll T, Boda R, Tar I, Major T, Redl P, Gergely L, Szarka K. Frequency of genetic and epigenetic alterations of p14ARF and p16INK4A in head and neck cancer in a Hungarian population. Pathol Oncol Res 2014; 20:923-9. [PMID: 24710824 DOI: 10.1007/s12253-014-9775-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 03/27/2014] [Indexed: 11/29/2022]
Abstract
Occurrence of genetic and epigenetic alterations affecting p14ARF and p16INK4A were investigated in tumour samples of 37 oral (OSCC) and 28 laryngeal squamous cell cancer (LSCC) patients, and compared to exfoliated buccal epithelial cells of 68 healthy controls. Presence of deletions and mutations/polymorphisms affecting exons were examined using sequencing. Methylation status of promoters was assessed by methylation-specific PCR. Chi-square and Fisher's exact tests were used to compare frequency of events. Exon deletions were found in four controls, one OSCC and 22 LSCC patients; the latter significantly differed from controls (p < 0.001). Only two mutations (T24610A and C24702A) were in p16 exon 1 of two OSCC patients. Polymorphisms G28575A (Ala140Thr), G31292C (C540G) and G28608A were found in both patient groups. The p14 promoter was unmethylated in 86.7 % of OSCC and in 85.7 % of LSCC patients; for the p16 promoter these rates were 69.0 % and 76.2 % for OSCC and LSCC patients, respectively. Combining the two patient groups, unmethylated promoter was significantly less frequent in case of both p14 and p16 (p = 0.043 and p = 0.001, respectively) compared to the control group. In summary, exon deletion may be important in LSCC, while promoter methylation was relatively frequent in both patient groups.
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Affiliation(s)
- Andrea Kis
- Department of Medical Microbiology, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Nagyerdei krt. 98, Hungary
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8
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Vargas-Torres SL, Portari EA, Klumb EM, Guillobel HCDR, Camargo MJD, Russomano FB, Macedo JMB. Association ofCDKN2Apolymorphisms with the severity of cervical neoplasia in a Brazilian population. Biomarkers 2014; 19:121-7. [DOI: 10.3109/1354750x.2014.881419] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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9
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Tuna G, Küçükhüseyin O, Arıkan S, Kaytan Sağlam E, Güler E, Cacına C, Oztop O, Turan S, Korkmaz G, Yaylım I. Do CDKN2 p16 540 C>G, CDKN2 p16 580 C>T, and MDM2 SNP309 T>G gene variants act on colorectal cancer development or progression? DNA Cell Biol 2013; 32:400-8. [PMID: 23777425 DOI: 10.1089/dna.2012.1933] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
CDNK2 p16 plays a pivotal role in G1/S transition by regulating the p53 pathway, which was regulated by a nuclear oncoprotein, mouse double minute 2 (MDM2). Overexpression of the MDM2 gene has been shown in a number of tumor types, its gene amplification is found to associate with accelerated tumor development and failure to treatment in both hereditary and sporadic cancers. Although genetic association studies have revealed the relationship between certain genetic polymorphisms and genes that play important roles in the development and progression of colorectal cancer (CRC), it is still unknown. Therefore, the polymorphisms of p16 540 C>G, 580 C>T, and MDM2 SNP309 T>G designed to investigate the risk of CRC development and progression in a Turkish population. We enrolled 87 patients with CRC and 75 healthy controls into the study. Genotypings were determined using polymerase chain reaction-restriction fragment length polymorphism techniques. Genotype distributions of p16 540 C>G and 580 C>T were found in agreement with the Hardy-Weinberg equilibrium in patients and controls. MDM2 SNP309 T>G was found in agreement with the Hardy-Weinberg equilibrium in controls, but not in patients. The results of our study, the G allele of p16 540 C>G and GG genotype of MDM2 SNP309 T>G were found significantly lower in patients compared with controls (p<0.001, p<0.05, respectively). Haplotype analyses have shown that the C allele of both the CDKN2 p16 540 C>G and 580 C>T variants together indicate a risk haplotype for the patient group; besides, carrying the G allele of p16 540 and G allele of MDM2 also seems a risk haplotype for the patient group. Our study is the first study that investigates the relationship among variants of CDKN2 p16 540 C>G, 580 C>T, and MDM2 SNP309 T>G risk of CRC and the development and progression in the Turkish population.
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Affiliation(s)
- Gülay Tuna
- Department of Molecular Medicine, The Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
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10
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Wang C, Guo Z, Wu C, Li Y, Kang S. A polymorphism at the miR-502 binding site in the 3' untranslated region of the SET8 gene is associated with the risk of epithelial ovarian cancer. Cancer Genet 2012; 205:373-6. [PMID: 22867998 DOI: 10.1016/j.cancergen.2012.04.010] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Revised: 04/26/2012] [Accepted: 04/28/2012] [Indexed: 11/18/2022]
Abstract
MicroRNAs (miRNAs) bind to the 3' untranslated regions (UTRs) of messenger RNAs, where they interfere with the translation of genes that regulate cell differentiation, apoptosis, and tumorigenesis. SET8 reportedly methylates TP53 and regulates genomic stability. We analyzed a single nucleotide polymorphism (rs16917496) within the miR-502 mRNA seed region of the 3' UTR of SET8 in Chinese epithelial ovarian cancer (EOC) patients. The SET8 CC genotype was associated with a decreased risk of EOC in this case-control study. The analysis of genetic polymorphisms in miRNA binding sites may help identify subgroups of populations that are at high risk for EOC.
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Affiliation(s)
- Cuiju Wang
- Department of Gynaecology Ultrasound, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China
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11
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Braem M, Schouten L, Peeters P, den Brandt PV, Onland-Moret N. Genetic susceptibility to sporadic ovarian cancer: A systematic review. Biochim Biophys Acta Rev Cancer 2011; 1816:132-46. [DOI: 10.1016/j.bbcan.2011.05.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2011] [Revised: 05/18/2011] [Accepted: 05/18/2011] [Indexed: 11/29/2022]
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12
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Association analysis of p16 (CDKN2A) and RB1 polymorphisms with susceptibility to cervical cancer in Indian population. Mol Biol Rep 2011; 39:407-14. [DOI: 10.1007/s11033-011-0752-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Accepted: 04/27/2011] [Indexed: 10/18/2022]
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Cunnington MS, Santibanez Koref M, Mayosi BM, Burn J, Keavney B. Chromosome 9p21 SNPs Associated with Multiple Disease Phenotypes Correlate with ANRIL Expression. PLoS Genet 2010; 6:e1000899. [PMID: 20386740 PMCID: PMC2851566 DOI: 10.1371/journal.pgen.1000899] [Citation(s) in RCA: 297] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2009] [Accepted: 03/08/2010] [Indexed: 12/13/2022] Open
Abstract
Single nucleotide polymorphisms (SNPs) on chromosome 9p21 are associated with coronary artery disease, diabetes, and multiple cancers. Risk SNPs are mainly non-coding, suggesting that they influence expression and may act in cis. We examined the association between 56 SNPs in this region and peripheral blood expression of the three nearest genes CDKN2A, CDKN2B, and ANRIL using total and allelic expression in two populations of healthy volunteers: 177 British Caucasians and 310 mixed-ancestry South Africans. Total expression of the three genes was correlated (P<0.05), suggesting that they are co-regulated. SNP associations mapped by allelic and total expression were similar (r = 0.97, P = 4.8×10−99), but the power to detect effects was greater for allelic expression. The proportion of expression variance attributable to cis-acting effects was 8% for CDKN2A, 5% for CDKN2B, and 20% for ANRIL. SNP associations were similar in the two populations (r = 0.94, P = 10−72). Multiple SNPs were independently associated with expression of each gene (P<0.05 after correction for multiple testing), suggesting that several sites may modulate disease susceptibility. Individual SNPs correlated with changes in expression up to 1.4-fold for CDKN2A, 1.3-fold for CDKN2B, and 2-fold for ANRIL. Risk SNPs for coronary disease, stroke, diabetes, melanoma, and glioma were all associated with allelic expression of ANRIL (all P<0.05 after correction for multiple testing), while association with the other two genes was only detectable for some risk SNPs. SNPs had an inverse effect on ANRIL and CDKN2B expression, supporting a role of antisense transcription in CDKN2B regulation. Our study suggests that modulation of ANRIL expression mediates susceptibility to several important human diseases. Genetic variants on chromosome 9p21 have been associated with several important diseases including coronary artery disease, diabetes, and multiple cancers. Most of the risk variants in this region do not alter any protein sequence and are therefore likely to act by influencing the expression of nearby genes. We investigated whether chromosome 9p21 variants are correlated with expression of the three nearest genes (CDKN2A, CDKN2B, and ANRIL) which might mediate the association with disease. Using two different techniques to study effects on expression in blood from two separate populations of healthy volunteers, we show that variants associated with disease are all correlated with ANRIL expression, but associations with the other two genes are weaker and less consistent. Multiple genetic variants are independently associated with expression of all three genes. Although total expression levels of CDKN2A, CDKN2B, and ANRIL are positively correlated, individual genetic variants influence ANRIL and CDKN2B expression in opposite directions, suggesting a possible role of ANRIL in CDKN2B regulation. Our study suggests that modulation of ANRIL expression mediates susceptibility to several important human diseases.
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Affiliation(s)
- Michael S Cunnington
- Institute of Human Genetics, Newcastle University, Newcastle upon Tyne, United Kingdom
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14
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Meimei L, Peiling L, Baoxin L, Changmin L, Rujin Z, Chunjie H. Lost expression of DCC gene in ovarian cancer and its inhibition in ovarian cancer cells. Med Oncol 2010; 28:282-9. [PMID: 20054719 DOI: 10.1007/s12032-009-9400-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2009] [Accepted: 12/17/2009] [Indexed: 12/30/2022]
Abstract
Ovarian cancer is a leading cause of cancer-related women mortality in China. In recent years, the molecular mechanisms involved in ovarian carcinoma development and/or progression have been intensely studied, and several genes have been identified. Deleted in Colorectal Carcinoma (DCC), is an important tumor suppressor gene, which is inactivated in many kinds of tumors, and its function(s) is not clarified. Even though the lost expression of DCC occurred in later stages of multistep colorectal carcinogenesis, its contribution to the onset or progression of ovarian cancer is not fully understood. To investigate DCC expression in ovarian cancer, we studied 254 clinical samples by RT-PCR. Our results revealed that 52% malignant ovarian cancer did not express DCC gene. By contrast, DCC expression was observed in all normal ovary tissues and 80% benign ovarian tumors. Obviously, there was a significant correlation between DCC expression and ovarian cancer, especially in the epithelial ovarian cancer. The present study also suggested that the loss expression of DCC occurred more frequently in the cases of later clinical stage, higher pathological grade, and poorer prognosis. In the other part of this study, we further explored DCC expression after transfection in two kinds of ovarian cancer cell lines, namely SKOV3 cell and HO-8910 cell, using RT-PCR and immunocytochemistry. The results indicated that DCC expressed in SKOV3-DCC and HO-8910-DCC cells, and ultrastructural analysis showed the appearance of apoptotic features in them. Furthermore, cell growth was markedly down-regulated in above groups of cells, indicating that transfection with the DCC constructs can suppress the growth of tumor cells. In conclusion, our results suggest an association of lost expression of DCC with the ovarian cancer, and DCC gene may inhibit the growth of ovarian carcinoma cells. However, this result needs further trials with a larger sample.
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MESH Headings
- Adenocarcinoma, Clear Cell/genetics
- Adenocarcinoma, Clear Cell/metabolism
- Adenocarcinoma, Clear Cell/pathology
- Adenocarcinoma, Mucinous/genetics
- Adenocarcinoma, Mucinous/metabolism
- Adenocarcinoma, Mucinous/pathology
- Base Sequence
- Cell Proliferation
- Cystadenocarcinoma, Serous/genetics
- Cystadenocarcinoma, Serous/metabolism
- Cystadenocarcinoma, Serous/pathology
- DCC Receptor
- Disease Progression
- Endometrial Neoplasms/genetics
- Endometrial Neoplasms/metabolism
- Endometrial Neoplasms/pathology
- Female
- Humans
- Molecular Sequence Data
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/metabolism
- Ovarian Neoplasms/pathology
- Ovary/metabolism
- Ovary/pathology
- Prognosis
- Receptors, Cell Surface/antagonists & inhibitors
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Tumor Cells, Cultured
- Tumor Suppressor Proteins/antagonists & inhibitors
- Tumor Suppressor Proteins/genetics
- Tumor Suppressor Proteins/metabolism
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Affiliation(s)
- Liu Meimei
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital of Harbin Medical University, 150086 Harbin, Hei Longjiang, China
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15
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Role of genetic polymorphisms and ovarian cancer susceptibility. Mol Oncol 2009; 3:171-81. [PMID: 19383379 DOI: 10.1016/j.molonc.2009.01.008] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2009] [Accepted: 01/28/2009] [Indexed: 01/27/2023] Open
Abstract
The value of identifying women with an inherited predisposition to epithelial ovarian cancer has become readily apparent with the identification of the BRCA1, and BRCA2 genes. Women who inherit a deleterious mutation in either of these genes have a very high lifetime risk of ovarian cancer (10-60%) and to some extent, increased risks of fallopian tube and peritoneal cancer. These highly lethal cancers are almost completely prevented by prophylactic salpingoophorectomy. BRCA1/2 mutation testing has become the accepted standard of care in families with a strong history of breast and/or ovarian cancer. This approach has the potential to reduce ovarian cancer mortality by about 10%. Although the ability to perform genetic testing for BRCA1 and 2 represents a significant clinical advance, the frequency of mutations in these high penetrance ovarian cancer susceptibility genes is low in most populations. There is evidence to suggest that ovarian cancer susceptibility might be affected by common low penetrance genetic polymorphisms like it was shown for several common disorders like diabetes or breast cancer. Although such polymorphisms would increase risk to a lesser degree, they could contribute to the development of a greater proportion of ovarian cancers by virtue of their higher frequencies in the population. It has been shown that the most powerful approach to studying low penetrance genes is an association study rather than a linkage study design. This review describes the efforts that have been made in this field by individual case-control studies and through multi-center collaborations as part of international consortia such as the Ovarian Cancer Association Consortium (OCAC).
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