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Ahmed A, Rawshan AEM, Tishe ZH, Shawkat S, Popy MN, Shohag MH, Hossain M, Mostaid MS. Association of CD58 rs12044852 and rs2300747 polymorphisms with the risk of multiple sclerosis: A systematic review and meta-analysis. Mult Scler Relat Disord 2024; 82:105411. [PMID: 38176285 DOI: 10.1016/j.msard.2023.105411] [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: 10/25/2023] [Revised: 12/03/2023] [Accepted: 12/23/2023] [Indexed: 01/06/2024]
Abstract
OBJECTIVE Multiple sclerosis is a serious neurodegenerative disorder that causes disability in young adults. Genetic predisposition of multiple sclerosis is well documented and several single nucleotide polymorphisms (SNPs) of the CD58 were found to be associated with this disease. This systematic review and meta-analysis were done with the aim of finding the association between CD58 gene SNPs (rs12044852 and rs2300747) and the risk of multiple sclerosis (MS). METHOD A comprehensive search was done in PubMed, Google Scholar, Embase, and MSGene.org to find the relevant data. Our search yielded 13 relevant publications which were included for meta-analysis consisting of 5194 cases and 5766 controls. All the statistical analysis was conducted using meta and metafor packages in R studio. The odds ratio (OR) along with 95 % confidence intervals and p values were determined using the fixed effects and random effects model. The I2 test was done to measure heterogeneity. Subgroup analysis was performed along with analysis for publication bias. RESULTS We found significant association for both rs12044852 (allelic, dominant, over-dominant, heterozygous, and homozygous models) and rs2300747 (allelic, dominant, over-dominant, heterozygous models) with multiple sclerosis. Both the SNPs provided a protective effect for multiple sclerosis. Subgroup analysis indicated that rs12044852 polymorphism provided a protective effect in both Asians and Caucasians. However, for rs2300747, the Asian population showed no statistically significant association with the risk of MS. CONCLUSION Polymorphism of rs12044852 and rs2300747 of the CD58 gene provided a protective effect for multiple sclerosis. The protective effect is more prominent in Caucasian populations compared to Asians.
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Affiliation(s)
- Ashfaq Ahmed
- Department of Pharmaceutical Sciences, Faculty of Health and Life Sciences, North South University, Plot 15, Block B, Bashundhara R/A, Dhaka 1229, Bangladesh
| | | | - Zasia Hossain Tishe
- Department of Pharmaceutical Sciences, Faculty of Health and Life Sciences, North South University, Plot 15, Block B, Bashundhara R/A, Dhaka 1229, Bangladesh
| | - Sanjana Shawkat
- Department of Pharmaceutical Sciences, Faculty of Health and Life Sciences, North South University, Plot 15, Block B, Bashundhara R/A, Dhaka 1229, Bangladesh
| | - Meherun Nessa Popy
- Department of Pharmaceutical Sciences, Faculty of Health and Life Sciences, North South University, Plot 15, Block B, Bashundhara R/A, Dhaka 1229, Bangladesh
| | - Md Hasanuzzaman Shohag
- Department of Pharmaceutical Sciences, Faculty of Health and Life Sciences, North South University, Plot 15, Block B, Bashundhara R/A, Dhaka 1229, Bangladesh
| | - Murad Hossain
- Department of Pharmaceutical Sciences, Faculty of Health and Life Sciences, North South University, Plot 15, Block B, Bashundhara R/A, Dhaka 1229, Bangladesh
| | - Md Shaki Mostaid
- Department of Pharmaceutical Sciences, Faculty of Health and Life Sciences, North South University, Plot 15, Block B, Bashundhara R/A, Dhaka 1229, Bangladesh.
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Lezhnyova V, Davidyuk Y, Mullakhmetova A, Markelova M, Zakharov A, Khaiboullina S, Martynova E. Analysis of herpesvirus infection and genome single nucleotide polymorphism risk factors in multiple sclerosis, Volga federal district, Russia. Front Immunol 2022; 13:1010605. [PMID: 36451826 PMCID: PMC9703080 DOI: 10.3389/fimmu.2022.1010605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/03/2022] [Indexed: 09/29/2023] Open
Abstract
Multiple sclerosis (MS) is a heterogeneous disease where herpesvirus infection and genetic predisposition are identified as the most consistent risk factors. Serum and blood samples were collected from 151 MS and 70 controls and used to analyze circulating antibodies for, and DNA of, Epstein Barr virus (EBV), human cytomegalovirus (HCMV), human herpes virus 6 (HHV6), and varicella zoster virus (VZV). The frequency of selected single nucleotide polymorphisms (SNPs) in MS and controls were studied. Herpesvirus DNA in blood samples were analyzed using qPCR. Anti-herpesvirus antibodies were detected by ELISA. SNPs were analyzed by the allele-specific PCR. For statistical analysis, Fisher exact test, odds ratio and Kruskall-Wallis test were used; p<0.05 values were considered as significant. We have found an association between circulating anti-HHV6 antibodies and MS diagnosis. We also confirmed higher frequency of A and C alleles in rs2300747 and rs12044852 of CD58 gene and G allele in rs929230 of CD6 gene in MS as compared to controls. Fatigue symptom was linked to AC and AA genotype in rs12044852 of CD58 gene. An interesting observation was finding higher frequency of GG genotype in rs12722489 of IL2RA and T allele in rs1535045 of CD40 genes in patient having anti-HHV6 antibodies. A link was found between having anti-VZV antibodies in MS and CC genotype in rs1883832 of CD40 gene.
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Affiliation(s)
- Vera Lezhnyova
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Yuriy Davidyuk
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Asia Mullakhmetova
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Maria Markelova
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Alexander Zakharov
- Department of Neurology and Neurosurgery, Samara State Medical University, Samara, Russia
| | - Svetlana Khaiboullina
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Ekaterina Martynova
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
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Ghavimi R, Alsahebfosoul F, Salehi R, Kazemi M, Etemadifar M, Zavaran Hosseini A. High-resolution melting curve analysis of polymorphisms within CD58, CD226, HLA-G genes and association with multiple sclerosis susceptibility in a subset of Iranian population: a case-control study. Acta Neurol Belg 2020; 120:645-652. [PMID: 30128676 DOI: 10.1007/s13760-018-0992-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 07/16/2018] [Indexed: 10/28/2022]
Abstract
Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system with unknown etiology, which typically is manifested in early to middle adulthood. Recently, genome-wide association studies have identified susceptibility of immune-related genes to be involved in MS predisposition. The goal of the current study was to investigate the association of single nucleotide polymorphisms (SNP) with the immunologically related genes responsible for the disease, composed of CD58 (rs2300747 A>G), CD226 (rs763361 C>T), and HLA-G (rs1611715 A>C), with MS susceptibility. In this case-control study, a total of 200 patients suffering from relapsing-remitting multiple sclerosis and 200 healthy individuals were recruited. DNA was extracted from blood and then all subjects were genotyped for the polymorphism within mentioned genes by high-resolution melting (HRM) real-time PCR method. Statistical analyses were performed using SPSS software (version 20; SPSS, Chicago, IL, USA). Our finding showed that there are significant differences in genotype and allele frequencies between two groups regarding rs763361 (P = 0.035, OR 0.64, CI 95% for C allele) and rs1611715 (P = 0.038, OR 1.57, CI 95% for AA genotype) polymorphisms within CD226 and HLA-G genes, respectively. Concerning rs2300747 polymorphism on CD58 gene, no significant differences were found between cases and controls. In general, results from the current study indicate that CD226 and HLA-G, but not CD58 genetic polymorphisms are associated with increased risk of MS in Isfahan population similar to European populations. However, to elucidate how these SNPs contribute to MS pathogenesis, functional studies are needed.
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Ching YM, Viswanathan S, Mohamed Nor N, Shuib S, Kamarudin B, Mansor S, Yusof AY, Arip M. Association of CD58 polymorphism and multiple sclerosis in Malaysia: a pilot study. AUTOIMMUNITY HIGHLIGHTS 2020; 10:13. [PMID: 32257069 PMCID: PMC7065364 DOI: 10.1186/s13317-019-0123-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 12/06/2019] [Indexed: 11/15/2022]
Abstract
Background Multiple sclerosis is an immune mediated disease targeting the central nervous system. Association of non-human leukocyte antigen gene, CD58, with multiple sclerosis has been reported in several populations but is unclear among Southeast Asians. This pilot study was conducted to explore the association between CD58 polymorphism and multiple sclerosis among the Malay population in Malaysia. Methods Blood samples were collected from 27 multiple sclerosis patients, and compared with 58 age- and gender matched healthy individuals. All patients were tested negative for anti-aquaporin 4. DNA was extracted from the blood and genotyped for 3 single nucleotide polymorphisms rs12044852, rs2300747 and rs1335532 of gene CD58 by real-time PCR. Results The majority of multiple sclerosis patients were female (85.2%). The general mean age of onset was 30.5 years. Genotyping results showed that frequencies of the alleles were between 40 and 50% for MS patients and healthy individuals. Association (allelic model) between multiple sclerosis and CD58 gene polymorphism alleles rs12044852 (p = 0.410), rs2300747 (p = 0.881) and rs1335532 (p = 0.407) were indistinct. Conclusions The impact of the CD58 gene polymorphism was not prominent in this pilot study, implying that genetic composition contributing to multiple sclerosis may be different between different populations, thus results in a heterogeneity of disease manifestation and distribution.
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Affiliation(s)
- Yee Ming Ching
- Autoimmune Unit, Allergy and Immunology Research Centre, Institute for Medical Research, National Institute of Health, Selangor, Malaysia
| | | | - Nurhanani Mohamed Nor
- Autoimmune Unit, Allergy and Immunology Research Centre, Institute for Medical Research, National Institute of Health, Selangor, Malaysia
| | - Shuwahida Shuib
- Autoimmune Unit, Allergy and Immunology Research Centre, Institute for Medical Research, National Institute of Health, Selangor, Malaysia
| | - Balqis Kamarudin
- Autoimmune Unit, Allergy and Immunology Research Centre, Institute for Medical Research, National Institute of Health, Selangor, Malaysia
| | - Salawati Mansor
- Autoimmune Unit, Allergy and Immunology Research Centre, Institute for Medical Research, National Institute of Health, Selangor, Malaysia
| | - Ainur Yusniza Yusof
- Autoimmune Unit, Allergy and Immunology Research Centre, Institute for Medical Research, National Institute of Health, Selangor, Malaysia
| | - Masita Arip
- Autoimmune Unit, Allergy and Immunology Research Centre, Institute for Medical Research, National Institute of Health, Selangor, Malaysia.,3Allergy and Immunology Research Centre, Institute for Medical Research, Block C6, National Institute of Health Complex, No. 1, Jalan Setia Murni U13/52, Seksyen U13, Bandar Setia Alam, 40170 Shah Alam, Selangor Darul Ehsan Malaysia
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Pereira VCSR, Fontes-Dantas FL, Paradela ER, Malfetano FR, Scherpenhuijzen SDSB, Mansur LF, Luiz RR, Oliveira APD, Farinhas JGD, Maiolino Â, Alves-Leon SV. Polymorphisms in the CIITA -168A/G (rs3087456) and CIITA +1614G/C (rs4774) may influence severity in multiple sclerosis patients. ARQUIVOS DE NEURO-PSIQUIATRIA 2019; 77:166-173. [PMID: 30970129 DOI: 10.1590/0004-282x20190026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 11/29/2018] [Indexed: 02/03/2023]
Abstract
It is currently unknown how genetic factors may influence the clinical course of multiple sclerosis (MS). OBJECTIVE We examined the impact of CIITA polymorphisms -168A/G (rs3087456) and +1614G/C (rs4774) on the risk of disability progression, severity and on responses to first-line immunomodulator treatments. METHODS Genomic DNA was extracted from blood samples. We used ABI3730xl and GeneMapper v.4.0 software to identify genotype variations. All patients were followed up and clinically reassessed at three-month intervals. Disability progression was measured by the Expanded Disability Status Scale and disease severity by the Multiple Sclerosis Spasticity Scale (MSSS). RESULTS We included 37 men and 80 women. We found no evidence regarding the influence of the single nucleotide polymorphisms studied in the Expanded Disability Status Scale or therapeutic response of the evaluated drugs. We performed a logistic regression analysis with the MSSS and found that a less severe MS course was associated with wild type CIITA -168AA and CIITA +1614GG, as the chance of the patient progressing to MSSS2 and MSSS3 decreased in 61% and 75% with CIITA -168AA and 66% and 75% with CIITA +1614GG, respectively (p < 0.0001). Although less significant, the CIITA +1614 GC also pointed to a less severe MS course and the chance of the patient progressing to MSSS3 decreased 79% (p = 0.015). We also observed that the CIITA -168GG genotype was more frequent in MSSS2 and MSSS3 and had 40% lower odds ratio to becoming more severe MS. CONCLUSION These data suggest that CIITA -168AA, CIITA +1614GG and CIITA +1614 GC polymorphisms may be associated with a better MS clinical course. This knowledge may be useful for a better understanding of MS and its therapeutic management.
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Affiliation(s)
| | - Fabrícia Lima Fontes-Dantas
- Universidade Federal do Estado do Rio de Janeiro, Laboratório de Neurociências Translacional, Programa de Pós-Graduação em Neurologia, Rio de Janeiro RJ, Brasil
| | - Eduardo Ribeiro Paradela
- Universidade Federal do Estado do Rio de Janeiro, Laboratório de Neurociências Translacional, Programa de Pós-Graduação em Neurologia, Rio de Janeiro RJ, Brasil
| | | | | | - Letícia Fêzer Mansur
- Universidade Federal do Estado do Rio de Janeiro, Laboratório de Neurociências Translacional, Programa de Pós-Graduação em Neurologia, Rio de Janeiro RJ, Brasil
| | - Ronir Raggio Luiz
- Universidade Federal do Rio de Janeiro, Departamento de Neurologia, Rio de Janeiro RJ, Brasil
| | - André Peres De Oliveira
- Universidade Federal do Estado do Rio de Janeiro, Laboratório de Neurociências Translacional, Programa de Pós-Graduação em Neurologia, Rio de Janeiro RJ, Brasil
| | - João Gabriel Dib Farinhas
- Universidade Federal do Estado do Rio de Janeiro, Laboratório de Neurociências Translacional, Programa de Pós-Graduação em Neurologia, Rio de Janeiro RJ, Brasil
| | - Ângelo Maiolino
- Universidade Federal do Rio de Janeiro, Departamento de Neurologia, Rio de Janeiro RJ, Brasil
| | - Soniza Vieira Alves-Leon
- Universidade Federal do Rio de Janeiro, Departamento de Neurologia, Rio de Janeiro RJ, Brasil.,Universidade Federal do Estado do Rio de Janeiro, Laboratório de Neurociências Translacional, Programa de Pós-Graduação em Neurologia, Rio de Janeiro RJ, Brasil
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Mitkin NA, Muratova AM, Korneev KV, Pavshintsev VV, Rumyantsev KA, Vagida MS, Uvarova AN, Afanasyeva MA, Schwartz AM, Kuprash DV. Protective C allele of the single-nucleotide polymorphism rs1335532 is associated with strong binding of Ascl2 transcription factor and elevated CD58 expression in B-cells. Biochim Biophys Acta Mol Basis Dis 2018; 1864:3211-3220. [PMID: 30006149 DOI: 10.1016/j.bbadis.2018.07.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 06/23/2018] [Accepted: 07/06/2018] [Indexed: 12/24/2022]
Abstract
CD58 is expressed on the surface of antigen-presenting cells, including B-cells, and provides co-stimulation to regulatory T-cells (Treg) through CD2 receptor binding. Tregs appear to be essential suppressors of tissue-specific autoimmune responses. Thereby, CD58 plays protective role in multiple sclerosis (MS) and CD58 was identified among several loci associated with MS susceptibility. Minor (C) variant of the single-nucleotide polymorphism (SNP) rs1335532 is associated with lower MS risk according to genome-wide association studies (GWAS) and its presence correlates with higher CD58 mRNA levels in MS patients. We found that genomic region containing rs1335532 has enhancer properties and can significantly boost the CD58 promoter activity in lymphoblast cells. Using bioinformatics and pull-down assay we found that the protective (C) rs1335532 allele created functional binding site for ASCL2 transcription factor, a target of the Wnt signaling pathway. Both in B-lymphoblastoid cell lines and in primary B-cells, as well as in a monocytic cell line, activation of Wnt signaling resulted in an increased CD58 promoter activity in the presence of the protective but not the risk allele of rs1335532, whereas ASCL2 knockdown abrogated this effect. In summary, our results suggest that ASCL2 mediates the protective function of rs1335532 minor (C) allele in MS.
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Affiliation(s)
- Nikita A Mitkin
- Laboratory of Intracellular Signaling in Health and Disease, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Alisa M Muratova
- Laboratory of Intracellular Signaling in Health and Disease, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, Moscow, Russia
| | - Kirill V Korneev
- Laboratory of Intracellular Signaling in Health and Disease, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, Moscow, Russia
| | | | | | | | - Aksinya N Uvarova
- Laboratory of Intracellular Signaling in Health and Disease, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, Moscow, Russia
| | - Marina A Afanasyeva
- Laboratory of Intracellular Signaling in Health and Disease, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Anton M Schwartz
- Laboratory of Intracellular Signaling in Health and Disease, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Dmitry V Kuprash
- Laboratory of Intracellular Signaling in Health and Disease, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, Moscow, Russia.
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Tizaoui K. Multiple sclerosis genetics: Results from meta-analyses of candidate-gene association studies. Cytokine 2018; 106:154-164. [DOI: 10.1016/j.cyto.2017.10.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 10/16/2017] [Accepted: 10/25/2017] [Indexed: 12/12/2022]
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Tang J, Ou J, Xu C, Yi C, Xue F, Xu L, Lai F, Tang J, Li S, Kang T, Ding W, Wang B. EVI5 is a novel independent prognostic predictor in hepatocellular carcinoma after radical hepatectomy. Oncol Rep 2017; 38:2251-2258. [PMID: 28765910 DOI: 10.3892/or.2017.5862] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 07/21/2017] [Indexed: 11/06/2022] Open
Abstract
The present study explored the correlation of ecotropic viral integration site 5 (EVI5) expression with clinicopathological features and prognosis in hepatocellular carcinoma (HCC). A total of 205 HCC patients were included retrospectively. Quantitative real-time polymerase chain reaction (RT-qPCR) and western blotting were performed to detect the profile of EVI5 expression in HCC cell lines and fresh tissues. Archived paraffin-embedded specimens were investigated for EVI5 expression by immunohistochemistry (IHC). Both the mRNA and protein levels of EVI5 were obviously upregulated in HCC cell lines and tumor tissues. EVI5 protein level was closely associated with the clinicopathological characteristics, including liver function (P=0.013), venous invasion (P=0.015) and TNM stage (P=0.014). Furthermore, univariate analysis showed that the patients with high EVI5 expression indicated shorter overall survival (OS, P<0.001) and recurrence-free survival (RFS, P=0.001) than those with low EVI5 expression. Importantly, high EVI5 expression also exerts predictive power for higher postoperative recurrence rate by stratified analysis. Multivariate Cox regression analysis demonstrated that OS was correlated with both tumor number (P=0.046) and EVI5 expression (P<0.001) and that RFS was correlated with serum AFP (P=0.023), tumor number (P=0.036) and EVI5 expression (P<0.001). Taken together, EVI5 is an useful independent prognostic marker of survival and recurrence in hepatocellular carcinoma.
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Affiliation(s)
- Jintian Tang
- Department of Hepatopancreatobiliary Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
| | - Jianghua Ou
- Department of Breast Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
| | - Chunyan Xu
- Department of Hepatopancreatobiliary Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
| | - Chao Yi
- Department of Hepatopancreatobiliary Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
| | - Feng Xue
- Department of Hepatopancreatobiliary Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
| | - Lin Xu
- Department of Hepatopancreatobiliary Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
| | - Fenju Lai
- College of Bioscience and Engineering, Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, Jiangxi Agricultural University, Nanchang, Jiangxi, P.R. China
| | - Jianjun Tang
- Department of Gastroenterology, Cancer Hospital of Jiangxi Province, Nanchang, Jiangxi, P.R. China
| | - Shengping Li
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, P.R. China
| | - Tiebang Kang
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, P.R. China
| | - Wei Ding
- Department of Hepatopancreatobiliary Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
| | - Boqing Wang
- Department of Hepatopancreatobiliary Surgery, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
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