Ohtsu A, Sasaki Y, Tamura T, Fujiwara Y, Ohe Y, Minato K, Nakagawa K, Bungo M, Saijo N
Department of Internal Medicine, National Cancer Center Hospital, Tokyo.
Jpn J Cancer Res. 1989 Mar;80(3):265-70. doi: 10.1111/j.1349-7006.1989.tb02303.x.
The cytotoxicity of interleukin-2-activated killer (LAK) cells with or without anticancer drugs against cell lines with acquired drug resistance was evaluated in vitro by colony assay. Human non-small cell lung cancer cell lines, PC-9 and PC-14, human leukemia cell line, K-562, and their sublines resistant to cisplatin (CDDP), PC-9/CDDP and PC-14/CDDP, and to adriamycin (ADM), K-562/ADM, were used as target cells. PC-9/CDDP demonstrated a marked increase in susceptibility to killing by both peripheral blood lymphocytes (PBL) and LAK cells, as compared to the parental cell line, PC-9. The cytotoxicity of PBL and LAK cells against PC-14/CDDP and K-562/ADM was similar to that against their parental cell lines. Moreover, the combination of LAK and CDDP had a synergistic effect on PC-14 and PC-14/CDDP.
通过集落测定法在体外评估了白细胞介素-2激活的杀伤(LAK)细胞在有或没有抗癌药物的情况下对获得性耐药细胞系的细胞毒性。使用人非小细胞肺癌细胞系PC-9和PC-14、人白血病细胞系K-562及其对顺铂(CDDP)耐药的亚系PC-9/CDDP和PC-14/CDDP,以及对阿霉素(ADM)耐药的亚系K-562/ADM作为靶细胞。与亲代细胞系PC-9相比,PC-9/CDDP对外周血淋巴细胞(PBL)和LAK细胞杀伤的敏感性显著增加。PBL和LAK细胞对PC-14/CDDP和K-562/ADM的细胞毒性与其对亲代细胞系的细胞毒性相似。此外,LAK细胞与CDDP联合使用对PC-14和PC-14/CDDP具有协同作用。