Sakurada K, Imamura M, Kobayashi M, Tachibana N, Abe K, Tanaka M, Okabe M, Morioka M, Kasai M, Sugiura T
Third Department of Internal Medicine, Hokkaido University, School of Medicine, Sapporo, Japan.
Acta Oncol. 1990;29(6):799-802. doi: 10.3109/02841869009093003.
We examined the effect of bestatin (Ubenimex) on the growth of human leukemic cells (i.e, HL-60, K562, MT-1, MT-2, Molt-4, and Raji cells). The growth of each cell line was inhibited by the cocultivation with bestatin at higher concentrations than employed for clinical use in Japan. [3H]TdR incorporation was also inhibited in MT-1 and MT-2 cells by treatment with bestatin. Degenerated cell-to-cell adhesion was observed among the treated cells. These findings suggest that the inhibitory effect on some leukemic cells, especially on MT-1 cells, results from the inhibition of DNA synthesis.
我们研究了抑氨肽酶B(ubenimex)对人白血病细胞(即HL-60、K562、MT-1、MT-2、Molt-4和Raji细胞)生长的影响。在高于日本临床使用浓度的情况下,与抑氨肽酶B共培养可抑制每种细胞系的生长。用抑氨肽酶B处理MT-1和MT-2细胞后,[3H]TdR掺入也受到抑制。在处理过的细胞中观察到细胞间黏附退化。这些发现表明,对某些白血病细胞,尤其是对MT-1细胞的抑制作用是由DNA合成的抑制导致的。