摘要
目的 为缺血疗法在胰腺癌的临床应用提供基础研究资料。方法 在建立人胰腺癌细胞株裸小鼠胰腺原位移植瘤模型的基础上 ,结扎荷瘤裸鼠胃十二指肠动脉、胰十二指肠下动脉及背胰动脉 ,诱导胰腺右叶区域性缺血 ,观察缺血对裸小鼠胰腺移植癌生长、移植癌及癌周胰腺组织病理形态学的影响。结果 缺血组移植癌生长缓慢 ,倍增时间延长 ,移植癌体积、癌细胞增殖指数及蛋白含量在术后第 3、7、14天均显著低于对照组 (P <0 .0 1)。光镜下缺血组移植癌呈大片凝固坏死 ,周围有渐进性坏死细胞及炎症细胞浸润 ;癌周胰腺组织腺泡萎缩破坏 ,可见广泛纤维化及淋巴细胞浸润。结论 区域性缺血对裸小鼠胰腺移植癌有确切的杀伤和抑制效应 ,癌周胰腺组织的缺血性改变可能不利于移植癌的生长。
Objective To provide experimental evidence for the clinical application of ischemia therapy to treating pancreatic cancer. [WT5”HZ]Methods [WT5”BZ]After the model of pancreatic transplanted cancer was established in nude mice with orthotransplantation of human pancreatic cancer cell line into the pancreas, the ischemia of the right lobe of the pancreas was induced with ligation of the gastroduodenal, inferior pancreaticoduodenal and dorsal pancreatic arteries. Effects of regional ischemia on the growth of transplanted cancer and the pathomorphology of the transplanted cancer and pericancerous tissue were investigated. [WT5”HZ]Results [WT5”BZ]The transplanted cancer grew slower and its doubling time was longer in the ischemic group than in the control. On the 3rd, 7th and 14th day after operation, the size of transplanted cancer, the proliferative index and protein content of the cancer cells were significantly lower in the ischemic group than in the control ( P <0.01). Optical microscopy revealed large areas of coagulation necrosis, necrobiotic cells and the infiltration of inflammatory cells. The atrophy of acini, fibrosis and the infiltration of lymphocyte cells were found in pericancerous tissue. [WT5”HZ]Conclusion [WT5”BZ]Regional ischemia can destroy and inhibit the pancreatic transplanted cancer in nude mice effectively. The ischemia changes of pericancerous tissue may be unfavourable for the growth of the pancreatic transplanted cancer.
出处
《中国普外基础与临床杂志》
CAS
2000年第6期351-353,共3页
Chinese Journal of Bases and Clinics In General Surgery
