Skolnik G, Ericson L E, Bagge U
J Cancer Res Clin Oncol. 1983;105(1):30-7. doi: 10.1007/BF00391829.
The hepatic lodgement of intraportally injected fibrosarcoma cells was analysed with a combination of vital fluorescence microscopic, electron microscopic and isotope techniques in normal, thrombocytopenic and antiserotonin treated (Ketanserin) rats. Ketanserin had no effect on the initial arrest of the tumor cells, as measured 5 min after tumor cell injection, which is in analogy with our previous results on thrombocytopenia. Three hours after injection, the number of lodged tumor cells was significantly reduced by both thrombocytopenia and Ketanserin treatment. Thrombocytopenia was more efficient in reducing tumor cell lodgement than antiserotonin treatment. The in vivo and electron microscopic observations indicated that the reduction of tumor cell lodgement was due to an increased destruction of tumor cells. The similar effects of Ketanserin and thrombocytopenia suggest that serotonin, when released from platelets activated in the presence of tumor cells, increases the survival of fibrosarcoma cells lodged in the liver.
采用活体荧光显微镜、电子显微镜和同位素技术相结合的方法,对正常、血小板减少以及抗血清素治疗(酮色林)的大鼠经门静脉注射纤维肉瘤细胞后的肝脏潴留情况进行了分析。肿瘤细胞注射5分钟后测量发现,酮色林对肿瘤细胞的初始滞留无影响,这与我们之前关于血小板减少症的研究结果相似。注射3小时后,血小板减少症和酮色林治疗均显著减少了滞留的肿瘤细胞数量。血小板减少症在减少肿瘤细胞潴留方面比抗血清素治疗更有效。体内和电子显微镜观察表明,肿瘤细胞潴留的减少是由于肿瘤细胞破坏增加所致。酮色林和血小板减少症的类似作用表明,当血清素从在肿瘤细胞存在下激活的血小板中释放时,会增加滞留在肝脏中的纤维肉瘤细胞的存活率。