investigate the cellular distribution of tumor-promoting vs. non-tumor-promoting bryostatin analogues, we synthesized fluorescently labeled variants of two bryostatin derivatives that have previously shown either phorbol ester-like or bryostatin-like biological activity in U937 leukemia cells. These new fluorescent analogues both displayed high affinity for protein kinase C (PKC) binding and retained the basic
为了研究促肿瘤的和非促肿瘤的bryostatin类似物的细胞分布,我们合成了两种bryostatin衍
生物的荧光标记变体,它们先前已在U937白血病细胞中表现出佛波酯样或bryostatin样的
生物活性。这些新的荧光类似物既显示出对蛋白激酶C(PKC)结合的高亲和力,又保留了U937分析中母体未标记化合物的基本特性。荧光化合物在细胞中显示出相似的细胞内分布模式。这与现有的假说相矛盾,该假说认为,细胞内分布的各种模式是
生物活性差异的原因。进一步表征后,荧光化合物显示出缓慢的细胞摄取速率。相应地,