Kawai K, Akaza H
Dept. of Urology, University of Tsukuba, Japan.
Gan To Kagaku Ryoho. 1996 Aug;23(9):1129-35.
Cisplatin-based conventional chemotherapy followed by surgery can cure 80-70% of disseminated testicular cancers. Effective salvage therapy is required for the remaining 20-30% of patients. High-dose chemotherapy (HDCT) combined with autologous stem-cell rescue for refractory testicular tumor results in about 10-20% durable complete responses. Hematologic toxicity is severe, and about 10% treatment-related deaths were reported in early investigations. Early salvage therapy or first-line therapy using HDCT is under investigation to improve treatment efficacy of the refractory or poor-risk testicular cancer. One of the important findings of these trials is that a platinum analogue may be critical to HDCT for cisplatin-refractory cases. Recent basic research has showed that platinum-containing anticancer drug provokes a complex response in the cancer cells. It is hoped that investigation of the mechanism of cisplatin-resistance or development of a new platinum complex will overcome the limitations of salvage chemotherapy for this disease. Finally, several investigators reported that highly selected chemorefractory patients, even with positive tumor markers, have definite potential for cure with surgical resection of localized metastatic disease. Thus, salvage surgery may be indicated for patients refractory to all potentially curative chemotherapeutic regimens.
基于顺铂的传统化疗后进行手术可治愈80%至70%的播散性睾丸癌。其余20%至30%的患者需要有效的挽救治疗。高剂量化疗(HDCT)联合自体干细胞救援用于难治性睾丸肿瘤,可产生约10%至20%的持久完全缓解。血液学毒性严重,早期研究报告约有10%的治疗相关死亡。正在研究早期挽救治疗或使用HDCT的一线治疗,以提高难治性或高危睾丸癌的治疗效果。这些试验的重要发现之一是,铂类类似物可能对顺铂难治性病例的HDCT至关重要。最近的基础研究表明,含铂抗癌药物在癌细胞中引发复杂反应。希望对顺铂耐药机制的研究或新铂配合物的开发将克服该疾病挽救化疗的局限性。最后,几位研究者报告称,即使肿瘤标志物呈阳性,经过高度选择的化疗难治性患者通过手术切除局部转移性疾病仍有明确的治愈潜力。因此,对于所有潜在治愈性化疗方案均难治的患者,可能需要进行挽救性手术。