小細(xì)胞肺癌的臨床回顧及免疫治療相關(guān)靶點(diǎn)的研究
[Abstract]:BACKGROUND & OBJECTIVE: Small cell lung cancer is the most malignant tumor in lung cancer, accounting for 13-15% of all lung cancer, but the prognosis is very poor. With the advent of novel cancer immunotherapy antibodies and CAR-T new immunotherapeutic techniques, which are represented by anti-PD-1/ PD-L1, non-small cell lung cancer, including non-small cell lung cancer, has a significant therapeutic effect in various tumors of the whole body, while the associated studies in small cell lung cancer are less. In this study, the clinical data of small cell lung cancer patients since 2008 were systematically reviewed and analyzed. The protein expression of PD-L1 and m-skin was analyzed, and the expression of protein in small-cell lung cancer and its clinical characteristics were discussed in the two groups. Materials and Methods: A total of 96 patients with small cell lung cancer by surgery or biopsy have been collected since 2008, and 96 patients have been diagnosed as small cell lung cancer by the pathology department. In the end, 77 patients were included in the clinical case analysis. The clinical data included age, sex, smoking history, the position of the primary tumor, the common metastatic site of the tumor (including bone metastasis, brain metastasis, liver metastasis, and adrenal metastasis). The staging of TNM staging was performed in the seventh edition of lung cancer, which was promulgated in 2009. The follow-up was followed by telephone follow-up and out-patient follow-up. Twenty-six patients with enough paraffin were selected in 77 patients, and 28 paraffin blocks, of which two pairs of paraffin specimens were primary and metastatic tumor tissues. The expression of each protein and the clinical characteristics of the patient were analyzed by using the method of immunohistochemistry, and the expression of each protein and the survival relationship of the patient were further analyzed by the Kaplan-Meier curve. The expression of the original range which is not consistent with the original range is subject to the expression of the original range. The correlation between the expression of each gene protein and the clinical features was analyzed by Fisher's exact test. The statistical software used was SPSS21. 0 and the P value was less than 0.05. Results: 1. In the clinical analysis, it was found that the small cell lung cancer is good for the male and the smoker, but the prognosis of the patient is not related to the sex, age, tumor, or smoking history. The incidence of the brain metastasis was the highest, the bone metastasis and the liver metastasis were the second, and the adrenal metastasis was the last. 3. The further analysis found that in the 68 patients without the prophylactic head irradiation, 18 patients had a brain metastasis, the incidence of which was 26. 47%, and in the 6 cases of the patients with the prophylactic head irradiation, Only one patient had a brain metastasis, with a rate of 16.67%. The results suggest that the brain irradiation may be helpful to the prevention of brain metastasis, but there is no significant difference between the two groups (P0.05). This may be related to the number of patients with advanced small cell lung cancer and need further verification. 4. For patients with advanced small cell lung cancer, treatment (operation + chemotherapy, The survival of the patients was 12 months (5-72 months) in the patients with chemotherapy + surgery + chemotherapy and simple chemotherapy, and the median survival in the treatment was within 3 months. The positive expression of PD-1 and PD-L1 in 28 small cell lung cancer was 50% (13/ 26) and 53.8% (14/ 26). The positive expression of the mesothelin was 46.2% (12/ 26), and the expression of the mesothelin was observed between the tumor and the vascular endothelium. It was found that there was no correlation between the expression of PD-1 and the prognosis of the patients (P0.05). The expression of PD-1 may be negatively correlated with the prognosis of the patients, but the sample size needs to be expanded to verify. The results showed that the expression of PD-L1, PD-L1, PD1, and eppelin in the primary and metastatic foci of small-cell lung cancer showed the heterogeneity of the tumor, that is, the partial expression of PD-L1, PD-L1, and eppelin was positive in the primary and negative, and vice versa. Conclusion: 1. Small cell lung cancer is good for men and smokers. The prognosis of patients with small cell lung cancer is not related to their sex, age, tumor, or smoking history. Preventive brain irradiation may be helpful to the prevention of brain metastasis; 4. For patients with advanced small cell lung cancer, the treatment of patients with advanced small cell lung cancer, including operation + chemotherapy, chemotherapy + surgery + chemotherapy and simple chemotherapy, can significantly prolong the survival of patients. However, there was no significant difference in the survival time between different treatment modes. 5, PD-1, PD-L1 and m-skin were positive in small cell lung cancer, but there was no correlation between the expression of PD-1 and the prognosis of the patients. The protein expression of PD1 and eppelin has tumor heterogeneity in the primary and metastatic foci of small cell lung cancer.
【學(xué)位授予單位】:天津醫(yī)科大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2016
【分類號(hào)】:R734.2
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