影響乳腺癌患者免疫狀態(tài)的相關(guān)因素分析
[Abstract]:BACKGROUND: Nowadays, breast cancer has accounted for 10% of all malignant tumors in the world, ranking the third. It is also one of the most common tumors among women. It has seriously threatened women's physical and mental health. We find that the incidence and mortality of breast cancer vary from country to country and region. In China, the incidence and mortality of breast cancer are offset by the high incidence of breast cancer in developed countries, where more than half of the patients are young women before menopause. The occurrence of tumors is directly related to the collapse of the body's self-protection function, so the study of immunological mechanism has never stopped and is deepening day by day. Cellular immunity plays an irreplaceable leading role in the body's anti-tumor immunity, while T cell subsets are currently important in reflecting the function of cellular immunity. Detection of CD4+T cells and CD8+T cells is based on the types of CD antigens on the surface of traditional T lymphocytes and their different functions. Objective: To compare the difference of immune function between normal people and breast cancer patients, and to compare the difference of immune function between normal people and breast cancer patients. Methods: To collect the data from January 2012 to June 2014 from the Second Affiliated Hospital of Dalian Medical University. The levels of T cell subsets (CD3, CD4, CD8) and NK cells in peripheral blood of 70 patients before and after chemotherapy were detected by flow cytometry (FCM). The clinical features of the patients, such as age, Ki67, TNM stage, molecular typing (ER, PR, Her-2, etc.) and lymphatic metastasis were analyzed. The distribution of T cell subsets was compared with 30 healthy subjects. The distribution of T lymphocyte subsets in breast cancer patients was affected by clinical characteristics: CD3 value (66.93 The CD4 value and CD4/CD8 dagger value in the group with lymph node metastasis were significantly lower than those in the group without lymph node metastasis (39.41+7.55 vs 33.88+8.61) and the ratio of CD4/CD8 (1.50+0.56 vs 1.23+0.53). The CD4 and CD4/CD8 dagger value in the group with lymph node metastasis were significantly lower than those in the group without lymph node metastasis (1.19+0.53). Age was only correlated with CD3. Age was significantly lower in the elderly group (65.54 + 8.89) than in the younger group (70.93 + 8.26). There was no significant correlation between the clinical stage of TNM and the distribution of T lymphocyte subsets. CD3, CD8 and NK were significantly higher after chemotherapy than before chemotherapy, and the ratio of CD4 to CD8 was significantly lower after chemotherapy than before chemotherapy (1.11 + 0.48) and the difference was statistically significant. CD8 increased significantly after chemotherapy, and the difference was different. NK cells increased significantly after chemotherapy in combination group, but showed a downward trend in single drug group. The distribution of T lymphocyte subsets in each cycle of AC-T regimen was analyzed. CD3 and CD4 showed an inverted U change with the chemotherapy cycle. CD8 value showed a significant upward trend and eventually leveled with the cycle. Conclusion: The immune function of breast cancer patients is lower than that of healthy people, and the distribution of T cell subsets in early breast cancer patients is different, but there is no significant effect on NK cells. After breast cancer surgery, adjuvant chemotherapy increased CD3, CD8 and NK, decreased CD4/CD8, and decreased immune function. Different chemotherapy regimens and chemotherapy cycles also had different effects on T cell subsets. The level can evaluate the patient's cellular immune status, understand the immune function of the body at different times, and explore the etiology of tumor, progress and clinical evaluation of curative effect as a means, will give us some inspiration, provide important clues and basis significance.
【學(xué)位授予單位】:大連醫(yī)科大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:R737.9
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