The cells were respectively treated by cisplatin, adriamycin, etoposide and topotecan and measured by MTT assay to evaluate the sensitivities in vitro.

• 通过光学显微镜、电子显微镜、生长曲线测定、染色体分析、双层软琼脂培养、裸鼠接种、免疫组化等，研究其生物学特性。