Design, synthesis, and biological evaluation of Bcr-Abl PROTACs to overcome T315I mutation.

Design, synthesis, and biological evaluation of Bcr-Abl PROTACs to overcome T315I mutation.
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克服 T315I 突变的 Bcr-Abl PROTAC 的设计、合成和生物学评价

DOI:
10.1016/j.apsb.2020.11.009
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发表时间:
2021-05
期刊:
Acta pharmaceutica Sinica. B
影响因子:
--
通讯作者:
Lu X
Lu X
中科院分区:
其他
文献类型:
--
作者:
Jiang L;Wang Y;Li Q;Tu Z;Zhu S;Tu S;Zhang Z;Ding K;Lu X

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Bcr-Abl 苏氨酸 315 至异亮氨酸 315 (T315I) 看门人突变诱导的耐药性仍然是慢性粒细胞白血病 (CML) 治疗中尚未解决的临床挑战。 Bcr-AblT315I 蛋白的化学降解已成为克服耐药性的潜在策略。在此,我们首先描述了基于 GZD824(我们小组报告为 Bcr-AblT315I 抑制剂)的一类新型选择性 Bcr-AblT315I 蛋白水解靶向嵌合 (PROTAC) 降解剂的设计、合成和评估。其中一种具有六元碳链连接的泊马度胺降解剂 7o 表现出最有效的降解功效,在 100 和 300 nmol/L 时,DR 分别为 69.89% 和 94.23%,对 Ba/F3T315I 细胞的 IC50 值为 26.8 ± 9.7 nmol/L。此外,7o 还针对 Ba/F3-Bcr-AblT315I 体内异种移植模型显示出显着的肿瘤消退。降解剂 7o 显示出最有效的降解功效,为 108 ± 16.3 nmol/L,对 Ba/F3 Bcr-AblT315I 细胞的 IC50 值为 26.8 ± 9.7 nmol/L。此外,针对 Ba/F3 Bcr-AblT315I 体内异种移植模型,7o 还显示出显着的肿瘤消退。
Bcr-Abl threonine 315 to isoleucine 315 (T315I) gatekeeper mutation induced drug resistance remains an unmet clinical challenge for the treatment of chronic myeloid leukemia (CML). Chemical degradation of Bcr-AblT315I protein has become a potential strategy to overcome drug resistance. Herein, we first described the design, synthesis, and evaluation of a new class of selective Bcr-AblT315I proteolysis-targeting chimeric (PROTAC) degraders based on GZD824 (reported as Bcr-AblT315I inhibitor by our group). One of the degrader 7o with 6-member carbon chain linkage with pomalidomide exhibits the most potent degradation efficacy with DR of 69.89% and 94.23% at 100 and 300 nmol/L, respectively, and has an IC50 value of 26.8 ± 9.7 nmol/L against Ba/F3T315I cells. Further, 7o also displays substantial tumor regression against Ba/F3-Bcr-AblT315I xenograft model in vivo. The degrader 7o exhibits the most potent degradation efficacy with 108 ± 16.3 nmol/L, and has an IC50 value of 26.8 ± 9.7 nmol/L against Ba/F3 Bcr-AblT315I cells. Further, 7o also displays substantial tumor regression against Ba/F3 Bcr-AblT315I xenograft model in vivo.
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期刊: Science (New York, N.Y.)
影响因子: --
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