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Thanh NTN, Lan NTT, Phat PT, Giang NDT, Hue NT. Two polymorphisms, rs2046210 and rs3803662, are associated with breast cancer risk in a Vietnamese case-control cohort. Genes Genet Syst 2018; 93:101-109. [DOI: 10.1266/ggs.17-00053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- Nguyen Thi Ngoc Thanh
- Department of Biology and Biotechnology, University of Science, Vietnam National University
| | - Nguyen Thi Tuyet Lan
- Department of Biotechnology, International University, Vietnam National University
| | - Phan Thanh Phat
- Department of Biology and Biotechnology, University of Science, Vietnam National University
| | | | - Nguyen Thi Hue
- Department of Biology and Biotechnology, University of Science, Vietnam National University
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Zhang Y, Li W, Hong Y, Wu G, He K, Liu D. A systematic analysis of the association studies between CASP8 D302H polymorphisms and breast cancer risk. J Genet 2018; 96:283-289. [PMID: 28674227 DOI: 10.1007/s12041-017-0774-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Caspase 8 (CASP8) is a regulator of apoptosis, whose genetic variation has been reported to be associated with the risk of various cancers. Especially, the single-nucleotide polymorphism (SNP) rs1045485, which generates the substitution D302H in CASP8, is likely to be associated with breast cancer. Several previous studies have reported the association of CASP8 D302H polymorphism with breast cancer; however, the results are inconsistent. To validate the association between CASP8 D302H polymorphism and breast cancer risk, we performed an updated meta-analysis of 18 studies including 27,807 cases and 32,332 controls. We tested the overall association between this SNP and breast cancer susceptibility and stratified subgroups based on countries where cases are from. We confirmed a significant correlation between CASP8 D302H polymorphism and the reduced breast cancer susceptibility in population from UK, Germany and Poland, but no significant association was observed in other countries, such as Finland or USA. Our findings indicate the relationship of SNP CASP8 D302H and breast cancer would not be universal but only be sensitive in some particular European countries. The genetic difference for diverse countries may be useful in individual and precision medicine or health.
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Affiliation(s)
- Yinliang Zhang
- School of Life Sciences, Anhui University, Hefei City, Anhui 230601, People's Republic of China.
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Lai Y, Li J, Li X, Zou C. Lipopolysaccharide modulates p300 and Sirt1 to promote PRMT1 stability via an SCF Fbxl17-recognized acetyldegron. J Cell Sci 2017; 130:3578-3587. [PMID: 28883095 DOI: 10.1242/jcs.206904] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 08/25/2017] [Indexed: 12/19/2022] Open
Abstract
E3 ubiquitin ligase recognizes its protein substrates via specific molecular signatures for ubiquitin proteasomal degradation. However, the role of acetylation/deacetylation in the process of E3 ubiquitin ligase recognizing its protein substrates is not fully studied. Here, we report that a tandem IK motif in protein arginine methyltransferase 1 (PRMT1) forms an acetyldegron to recruit the F-box/LRR-repeat protein 17 (FBXL17), a component of the SKP1-CUL1-F-box protein (SCF)-type E3 ubiquitin ligase complex. PRMT1 is polyubiquitylated for proteasome degradation with a half-life of approximately 4 h in lung epithelial cells. SCFFbxl17 mediates PRMT1 polyubiquitylation at K117. SCFFbxl17 specifically binds PRMT1 via a unique motif IKxxxIK. Strikingly, the acetylation/deacetylation status of the lysine residues within the motif determines Fbxl17 binding. Deacetylation on both K200 and K205 by Sirtuin 1 (Sirt1) and acetylation of p300 (EP300) on K205 collaboratively prepare the motif for SCFFbxl17 binding thereby triggering PRMT1 protein degradation. Pathogen-derived lipopolysaccharide (LPS) downregulates Sirt1 and p300 to protect PRMT1 from degradation. This study demonstrates that LPS promotes PRMT1 stability by blockade of PRMT1 and SCFFbxl17 binding via an acetylation/deacetylation-modified acetyldegron; and LPS-elevated levels of PRMT1 lead to bronchial epithelial cell overgrowth in pulmonary inflammatory diseases.
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Affiliation(s)
- Yandong Lai
- Acute Lung Injury Center of Excellence, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Jin Li
- Acute Lung Injury Center of Excellence, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Xiuying Li
- Acute Lung Injury Center of Excellence, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Chunbin Zou
- Acute Lung Injury Center of Excellence, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
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The Associations of Genetic Variants in E-cadherin Gene With Clinical Outcome of Epithelial Ovarian Cancer. Int J Gynecol Cancer 2016; 26:1601-1607. [DOI: 10.1097/igc.0000000000000829] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
ObjectiveThe E-cadherin protein plays major roles in tumor progression, invasion, and metastasis. Polymorphisms located in the E-cadherin gene (CDH1) may contribute to increased risks of specific cancers. In this study, we evaluated the associations between genetic variants inCDH1and the clinical outcomes of patients with epithelial ovarian cancer (EOC).Materials and MethodsWe assessed the−160C/Aand−347G/GApolymorphisms in the promoter region, as well as the3′-UTR +54C/Tpolymorphism of E-cadherin, in 257 patients with EOC by ligase detection reaction–polymerase chain reaction.ResultsMultivariate analysis showed that patients with EOC with theCDH1 −347GA/GAgenotype had shorter progression-free survival and overall survival (hazard ratio [HR], 2.16; 95% confidence interval [CI], 1.06–4.40 and HR, 2.06; 95% CI, 1.01–4.19, respectively) compared to those carrying the G/G genotype. Likewise, the patients with theCDH1 −160A/Agenotype had a shorter progression-free survival than those with the C/C genotype (HR, 4.12; 95% CI, 1.43–111.88). No significant association was detected between theCDH1 3′-UTR +54C/Tpolymorphism and survival of the patients with EOC.ConclusionsTheCDH1 −347GA/GAand−160A/Agenotypes may be prognostic markers that can help to identify patients at increased risk of invasive/metastatic cancer in northern China.
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Haryono SJ, Datasena IGB, Santosa WB, Mulyarahardja R, Sari K. A pilot genome-wide association study of breast cancer susceptibility loci in Indonesia. Asian Pac J Cancer Prev 2016; 16:2231-5. [PMID: 25824743 DOI: 10.7314/apjcp.2015.16.6.2231] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Genome-wide association studies (GWASs) of the entire genome provide a systematic approach for revealing novel genetic susceptibility loci for breast cancer. However, genetic association studies have hitherto been primarily conducted in women of European ancestry. Therefofre we here performed a pilot GWAS with a single nucleotide polymorphism (SNP) array 5.0 platform from Affymetrix® that contains 443,813 SNPs to search for new genetic risk factors in 89 breast cancer cases and 46 healthy women of Indonesian ancestry. The case-control association of the GWAS finding set was evaluated using PLINK. The strengths of allelic and genotypic associations were assessed using logistic regression analysis and reported as odds ratios (ORs) and P values; P values less than 1.00x10(-8) and 5.00x10(-5) were required for significant association and suggestive association, respectively. After analyzing 292,887 SNPs, we recognized 11 chromosome loci that possessed suggestive associations with breast cancer risk. Of these, however, there were only four chromosome loci with identified genes: chromosome 2p.12 with the CTNNA2 gene [Odds ratio (OR)=1.20, 95% confidence interval (CI)=1.13-1.33, P=1.08x10(-7)]; chromosome 18p11.2 with the SOGA2 gene (OR=1.32, 95%CI=1.17-1.44, P=6.88x10(-6)); chromosome 5q14.1 with the SSBP2 gene (OR=1.22, 95%CI=1.11-1.34, P=4.00x10(-5)); and chromosome 9q31.1 with the TEX10 gene (OR=1.24, 95%CI=1.12-1.35, P=4.68x10(-5)). This study identified 11 chromosome loci which exhibited suggestive associations with the risk of breast cancer among Indonesian women.
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Affiliation(s)
- Samuel J Haryono
- Department of Oncology, MRCCC Siloam Hospital Semanggi, Jakarta, Indonesia E-mail :
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Cao S, Chee SP, Yu HG, Sukavatcharin S, Wu L, Kijlstra A, Hou S, Yang P. Investigation of the association of Vogt-Koyanagi-Harada syndrome with IL23R-C1orf141 in Han Chinese Singaporean and ADO-ZNF365-EGR2 in Thai. Br J Ophthalmol 2015; 100:436-42. [PMID: 26628628 DOI: 10.1136/bjophthalmol-2015-307366] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 11/01/2015] [Indexed: 02/03/2023]
Abstract
BACKGROUND We performed a multistage genome-wide association study of Vogt-Koyanagi-Harada (VKH) syndrome in a Han Chinese population and identified two novel non-human leukocyte antigen candidate regions previously. The aim of the study was to replicate the association of IL23R-C1orf141 and ADO-ZNF365-EGR2 with VKH syndrome in four sets of multinational populations in Asia. METHOD We conducted a candidate genes association study involving 185 patients with VKH syndrome and 287 normal controls from Han Chinese Singaporeans, non-Han Chinese, Thais and Koreans. Genotyping of 16 single nucleotide polymorphisms (SNPs) within IL23R-C1orf141 and ADO-ZNF365-EGR2 loci was performed using the Sequenom MassARRAY system or by Taqman SNP assays. RESULTS Eight SNPs in IL23R-Clorf141 showed an association with VKH syndrome only in Han Chinese Singaporeans (p=8.49×10(-5) to 1.02×10(-3), pcorrection=1.69×10(-4) to 2.04×10(-3)) but not in the other groups tested. One SNP rs1884444 in IL23R-Clorf141 was found to be weakly associated with VKH syndrome in the Han Chinese Singaporeans, but significance was lost following Bonferroni correction for multiple comparisons. Five SNPs in ADO-ZNF365-EGR2 were found to be associated with VKH syndrome in Thai patients with VKH (p=0.014, pc=0.028) but not in the other three ethnic groups tested. CONCLUSIONS This study confirmed the genetic associations between SNPs in IL23R-C1orf141 and VKH syndrome in Han Chinese Singaporeans but not in other Asian populations. In addition, we also successfully replicated the association of VKH syndrome with ADO-ZNF365-EGR2 in a Thai population.
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Affiliation(s)
- Shuang Cao
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P. R. China Chongqing Eye Institute, Chongqing, P. R. China Chongqing Key Laboratory of Ophthalmology, Chongqing, P. R. China
| | - Soon Phaik Chee
- Singapore National Eye Centre, Singapore, Singapore Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore Singapore Eye Research Institute, Singapore, Singapore Department of Ophthalmology and Visual Sciences, Duke-National University of Singapore Graduate Medical School, Singapore, Singapore
| | - Hyeong Gon Yu
- Department of Ophthalmology, College of Medicine, Seoul National University, Seoul, Korea Sensory Organs Institute, Medical Research Center, Seoul National University, Seoul, Korea
| | - Somsiri Sukavatcharin
- Department of Ophthalmology, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Lili Wu
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P. R. China
| | - Aize Kijlstra
- University Eye Clinic Maastricht, Maastricht, The Netherlands
| | - Shengping Hou
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P. R. China Chongqing Eye Institute, Chongqing, P. R. China Chongqing Key Laboratory of Ophthalmology, Chongqing, P. R. China
| | - Peizeng Yang
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P. R. China Chongqing Eye Institute, Chongqing, P. R. China Chongqing Key Laboratory of Ophthalmology, Chongqing, P. R. China
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Yang ZH, Zhou CL, Zhu H, Li JH, He CD. A functional SNP in the MDM2 promoter mediates E2F1 affinity to modulate cyclin D1 expression in tumor cell proliferation. Asian Pac J Cancer Prev 2015; 15:3817-23. [PMID: 24870800 DOI: 10.7314/apjcp.2014.15.8.3817] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The MDM2 oncogene, a negative regulator of p53, has a functional polymorphism in the promoter region (SNP309) that is associated with multiple kinds of cancers including non-melanoma skin cancer. SNP309 has been shown to associate with accelerated tumor formation by increasing the affinity of the transcriptional activator Sp1. It remains unknown whether there are other factors involved in the regulation of MDM2 transcription through a trans-regulatory mechanism. METHODS In this study, SNP309 was verified to be associated with overexpression of MDM2 in tumor cells. Bioinformatics predicts that the T to G substitution at SNP309 generates a stronger E2F1 binding site, which was confirmed by ChIP and luciferase assays. RESULTS E2F1 knockdown downregulates the expression of MDM2, which confirms that E2F1 is a functional upstream regulator. Furthermore, tumor cells with the GG genotype exhibited a higher proliferation rate than TT, correlating with cyclin D1 expression. E2F1 depletion significantly inhibits the proliferation capacity and downregulates cyclin D1 expression, especially in GG genotype skin fibroblasts. Notably, E2F1 siRNA effects could be rescued by cyclin D1 overexpression. CONCLUSION Taken together, a novel modulator E2F1 was identified as regulating MDM2 expression dependent on SNP309 and further mediates cyclin D1 expression and tumor cell proliferation. E2F1 might act as an important factor for SNP309 serving as a rate-limiting event in carcinogenesis.
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Affiliation(s)
- Zhen-Hai Yang
- Department of Dermatology, No.1 Hospital of China Medical University, Shenyang, China E-mail :
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