宮頸鱗狀細(xì)胞癌發(fā)病和生存因素分析及其與食管鱗狀細(xì)胞癌遺傳易感性對比研究
[Abstract]:1. Background Cervical squamous cell carcinoma (CSCC) is the second most common gynecological malignancy in China, which seriously affects women's fertility and life. Epidemiological studies have shown that the risk factors for cervical cancer include human papillomavirus (HPV) infection, sexual behavior and the number of deliveries. Screening high-risk groups is an important means to improve the early diagnosis rate of cervical cancer. The incidence of cervical intraepithelial neoplasia (CIN) grade III and invasive cervical cancer in the first-degree relatives was significantly higher than that in the first-degree relatives without family history of cervical cancer. Esophageal squamous cell carcinoma (ESCC) is one of the most common malignant tumors in China. The epidemiological characteristics, risk factors and histological patterns of ESCC are similar. Epidemiological investigation shows that cervical cancer coexists in high incidence areas of esophageal cancer such as Henan, Shanxi and Shihezi in Xinjiang. HPV infection has been shown to be closely related to the occurrence and development of cervical cancer; interestingly, in recent years, more and more studies suggest that HPV infection can significantly increase the risk of esophageal cancer. In addition, the nomenclature of histogenesis of esophageal carcinogenesis is mainly based on the nomenclature of cervical carcinogenesis. In particular, recent studies on genetic and molecular biology of cancer suggest that there are similar single nucleotide polymorphism susceptibility loci in esophageal cancer and other tumors. The susceptibility sites of esophageal squamous cell carcinoma (ESCC) in Chinese population, which were identified by genome-wide association study (GWAS), were also associated with many other human tumors, including gastric cancer, esophageal adenocarcinoma, lung cancer, gallbladder cancer, and even brain glioma. In recent years, some important susceptibility sites have been found in GWAS studies of lung squamous cell carcinoma and gastric cancer. In view of this, this study aimed to investigate the clinical phenotype and survival relationship of cervical squamous cell carcinoma in Chinese Han population, and to utilize the molecular weight of Sequenom Mass Array in combination with the major susceptibility sites found by GWAS in esophageal squamous cell carcinoma, lung cancer and gastric cancer in recent years. Material and Methods 2.1 Pathogenesis and Survival Factors of Cervical Squamous Cell Carcinoma 2.1.1 The case group was from the Third Affiliated Hospital of Zhengzhou University, Henan Province. Patients with cervical squamous cell carcinoma were admitted to the provincial Cancer Hospital and Zhengzhou Maternal and Child Health Hospital from January 1, 2000 to April 30, 2014. 2.1.2 Questionnaire was used to investigate the epidemiology of the health examination population in the three affiliated hospitals. The contents included age, household registration type, marriage age, smoking history, pregnancy and childbirth history, menarche age, menopausal age, family history and other information. 2.1.3 Follow-up visits were conducted by telephone and home visits. Patients were followed up, and the survival situation of the patients was investigated by local village doctors. The follow-up data were collected and entered into EXCEL form for data analysis and application. 2.1.4 All the information was entered into EXCEL software for statistical analysis. SPSS17.0 software was used for statistical analysis. Chi-square test, logistic regression analysis and Kaplan-M were used for inter-group comparison. The survival curve was drawn by eier, and the survival relationship was analyzed by Log-Rank test. The risk ratio and 95% confidence interval were calculated by COX-regression regression. The test level was 0.05.2.2. The susceptibility site of cervical squamous cell carcinoma was 2.2.1. The case group was from the Third Affiliated Hospital of Zhengzhou University, Henan Cancer Hospital and Zheng Zheng. From October 23, 2011 to May 5, 2012, a total of 376 patients with cervical squamous cell carcinoma were enrolled in this study. The average age of the patients was 53 18-80 years old; female control group 389 cases, average age 51 (- 77 years old); male control group 342 cases, average age 51 (- 11 years old) (age range: 19-80 years old). 2.2.2 blood sample collection and DNA extraction collection of each case group of cervical squamous cell carcinoma patients and control group healthy people in the morning fasting peripheral venous blood 5ml, packed into five tubes, each tube 1ml, - 80 (- 80%) storage Using Flexi Gene DNA Extraction Kit (Qiagen), genome-wide DNA was extracted from the blood samples according to the instructions. The DNA concentration for verification was standardized to keep the concentration at 15ng-20ng/ul. The OD value ranged from 1.8 to 2.0.2.3 genotype. The susceptibility loci detected in this study were from esophageal squamous cell carcinoma, lung cancer and gastric cancer G. 18 SNPs, including 4 esophageal squamous cell carcinoma, 12 lung cancer and 2 gastric cancer, were identified by WAS. Primers were designed according to these SNPs and the changes of these SNPs in the case group and control group were detected by Sequenom Mass Array molecular array technique. Y, MAF, and Hardy-Weinberg (HWE) equilibrium laws were used to analyze the data after quality control using Plink 1.06 software. Cochran-Armitage tree test was used to calculate P value, 95% confidence interval (95% CI) and odds ratio (OR). The frequencies of each SNP allele were compared between the case group and the pair. Chi-square test was used to test the difference between the control group and the control group. Results The risk of cervical squamous cell carcinoma was 3.1.1 Results The proportion of patients with cervical squamous cell carcinoma was 7.17% (58/809), 30.41% (246/809), 33.87% (274/809), 20.52% (166/809) and 8.03% (65/809), respectively. The proportion of rural residents with a high incidence of cervical squamous cell carcinoma was significantly higher than that of urban residents (510/809,63% VS.299/809,37%), suggesting that low socioeconomic status was a risk factor for cervical squamous cell carcinoma. It was suggested that the late menarche age significantly affected the risk of cervical cancer (OR = 0.262, 95% CI 0.212-0.325, P = 0.000). 3.1.4 The proportion of married patients aged 22 years was significantly higher than that of the control group (315/767, 41% VS.109/795, 14%). Early marriage was another important risk factor of cervical cancer (OR = 4.386, 95% CI 3.422-5.621, P = 0.000). The 8-year interval between menarche age and marriage age in cervical cancer patients was significantly higher than that in the control group (368/767,48% VS.141/795,19%), suggesting that the short interval between marriage age and menarche age could increase the risk of cervical cancer (OR = 3.999,95% CI 3.185-5.021,P = 0.000). 3.1.6 patients with cervical squamous cell carcinoma had more than 3 pregnancies. It was significantly higher than that of the control group (621/805,77% VS.349/795,44%), suggesting that the number of pregnancies was a risk factor for cervical cancer (OR = 4.313,95% CI 3.475-5.353,P = 0.000). 3.1.7 The proportion of patients with cervical squamous cell carcinoma having more than two deliveries was significantly higher than that of the control group (643/805,75% VS.210/795,26%), suggesting that prolificacy was associated with cervical cancer (OR = 11.057,P = 0.000). 95% CI8.754-13.966, P = 0.000).3.1.8 The logistic regression analysis showed that the age of menarche, early marriage, polygamy and fertility were independent risk factors for cervical cancer. COX regression analysis showed that FIGO staging was an independent risk factor for prognosis (P 0.05). 3.2.2 Univariate and COX regression analysis showed that positive lymph node metastasis was a risk factor for prognosis (P 0.05). 3.3 Cervical squamous cell carcinoma legacy. A comparative analysis of 18 SNP loci in cervical squamous cell carcinoma patients and female control group showed that rs36600 SNP loci significantly increased the risk of cervical cancer (OR = 0.68, 95% CI 0.53-0.88, P = 3.40 *10-3), which was located in myotubin-related protein 3 (MTMR3) gene. Genetic susceptibility study whether the male as a control group, again cervical squamous cell carcinoma patients and male control group were compared and analyzed, the results showed no significant difference between the two (OR = 0.78, 95% CI 0.60-1.03, P = 0.08). Further cervical squamous cell carcinoma patients and mixed control group were analyzed and verified, found that the SNP locus and cervical squamous cell carcinoma. There was still a correlation between the survival and prognosis of cervical cancer patients (OR = 0.73, 95% CI 0.58-0.92, P = 6.68 *10-3). 3.3.2 The correlation analysis showed that there was no significant difference between the survival and prognosis of patients with different genotypes (X2 = 0.000, P = 0.985). Conclusion The early menarche age in April is a protective factor for the risk of cervical cancer. 4.2 Difference in clinical stage of cervical cancer patients is an independent risk factor for survival and prognosis; positive lymph node metastasis affects the prognosis of patients with stage I b~II a cervical squamous cell carcinoma. 4.3 confirmed for the first time that an important SNP locus, located at 22q, was significantly associated with the incidence of cervical squamous cell carcinoma in Chinese Han population. The rs36600 SNP locus of the MTMR3 gene on the 12.2 chromosome.
【學(xué)位授予單位】:鄭州大學(xué)
【學(xué)位級別】:博士
【學(xué)位授予年份】:2015
【分類號】:R737.33;R735.1
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