The lymphocytes from metastatic lymph nodes had obvious LAK activity, but it islow at begining, then it became higher and higher. On the 3 rd week it reached thepeak and the activity might last to 5 th week.

• 而有癌转移的淋巴结淋巴细胞在2周内亦有明显的LAK活性,但较低,以后逐渐升高,3周最高,且至5周时,仍有杀伤肿瘤活性。