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氮杂肽醛和酮:合成及作为人 20S 蛋白酶体抑制剂的评价

英文原题:Aza-peptide aldehydes and ketones: synthesis and evaluation as human 20S proteasome inhibitors.

查看英文原题

Aza-peptide aldehydes and ketones: synthesis and evaluation as human 20S proteasome inhibitors.

PubMed 2025/10/16(内容时间) Future Med Chem Q3 · IF 3.3(JCR 2025)

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研究概要

氮杂肽醛和酮是一类新型的选择性人 c20S 蛋白酶体抑制剂,具有进一步开发为多发性骨髓瘤替代疗法的潜力。

研究思路结论见上方概要

氮杂肽醛和酮被开发为一类新的肽基类似物,用于抑制人组成型(c)20S蛋白酶体,作为治疗多发性骨髓瘤(MM)的替代疗法。

基于对c20S蛋白酶体β5催化亚基的结合偏好,设计了11种新的氮杂肽醛和酮,采用苄氧羰基(Cbz)-Leu-Leu-Leu(类MG132)和吗啉基(Mp)-高苯丙氨酰基(HPh)-Leu-Phe-Leu(类Carfilzomib)序列,进行了合成、结构表征,并在体外竞争性动力学试验中评估了其抑制效力。此外,还设计并进行了细胞活力试验和分子建模实验以提供支持。

氮杂肽醛和酮在人c20S蛋白酶体β5催化亚基测试中表现出抑制活性,IC50值在µM范围内。化合物1是最有效的化合物,IC50值为2.3 ± 1.5 µM。在测试对三种多发性骨髓瘤、一种白血病和两种正常自然杀伤(NK)细胞系的浓度依赖性杀伤时,两种化合物在48小时后仅对癌细胞产生中等µM的EC50值。

展开英文摘要原文

Aza-peptide aldehydes and ketones generated inhibitory activity with IC 50 values in the µM range when tested at the ß5 catalytic subunit of the human c20S proteasome. Compound 1 was the most potent compound with an IC 50 value of 2.3 ± 1.5 µM. When tested for concentration-dependent killing of three multiple myeloma, one leukemic and two normal natural killer (NK) cell lines, two compounds generated mid-µM EC 50 values only for the cancer cells after 48 h.

Overall, aza-peptide aldehydes and ketones are a new class of selective human c20S proteasome inhibitors with the potential for further development as alternative therapeutics for multiple myeloma.

论文信息

作者
Corrigan TS、Border SE、Lotti Diaz LM、Kasper KQ、Noonchester AM、Amer R、Kucway KS、Fleisher M
单位
Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA.United States
文献类型
美国 NIH 资助研究
期刊
Future medicinal chemistry2025 Oct
原文标识
PubMed 41099163 · DOI 10.1080/17568919.2025.2561542