摘要
目的 :研究氟胞嘧啶 /胞嘧啶脱氨酶 (5 FC/CD)基因疗法与热休克蛋白 多肽复合物 (HSP70 PC)免疫疗法联合抗肿瘤效果。方法 :将携带CD基因的重组腺病毒注射到小鼠MFC瘤体内 ,腹腔注射 5 FC ,同时皮下接种HSP70 PC。结果 :经联合治疗后 ,70 %荷瘤小鼠肿瘤体积缩小 ,消退 ,小鼠存活期延长 ,细胞毒T淋巴细胞(CTL)杀伤活性增高 ,CD+ 4及CD+ 8T细胞浸润明显。结论 :5 FC/CD基因疗法结合HSP PC免疫疗法抗小鼠MFC瘤作用显著 ,具有临床应用前景。
Purpose:To investigate the antitumor effect of 5-fluorocytosine/cytosine deaminase (5FC/CD) suicide gene system combined with heat shock protein 70 peptide complexes(HSP70-PC) tumor vaccine.Methods:5-FC was administrated intraperitoneally after recombinant adenoviruses carrying E.coli CD gene were injected into murine tumor tissue. At the same time,mice bearing tumor were inoculated s.c. with HSP70-PC. Results:The combined therapy led to reduction in tumor growth, and complete tumor regression was observed in 70% of the mice. After the combined therapy, the tumor tissue showed more CD + 4 and CD + 8T cells infiltration, and the murine CTL activities increased significantly. Conclusions:The therapy combining 5-FC/CD system with HSP-PC tumor vaccine is very effective in murine gastric cancer, and has potential for clinical usage.
出处
《中国癌症杂志》
CAS
CSCD
2002年第1期31-34,共4页
China Oncology
基金
江苏省社会发展基金项目 (No .BS99381)
