Natural protoberberine alkaloids, identified as potent selective LSD1 inhibitors, induce AML cell differentiation

Autor: Mamun Maa, Hai-Fang Cheng, Feng-Zhi Suo, Bin Yu, Hong-Min Liu, Li-Juan Zhao, Yan-Jia Guo, Dan-Dan Shen, Yi-Chao Zheng, Sheng-Hui Niu, Zhen-Zhen Liu, Zhong-Rui Li
Rok vydání: 2020
Předmět:
Zdroj: Bioorganic Chemistry. 97:103648
ISSN: 0045-2068
DOI: 10.1016/j.bioorg.2020.103648
Popis: Natural protoberberine alkaloids were first identified and characterized as potent, selective and cellular active lysine specific demethylase 1 (LSD1) inhibitors. Due to our study, isoquinoline-based tetracyclic scaffold was identified as the key structural element for their anti-LSD1 activity, subtle changes of substituents attached to the core structure led to dramatic changes of the activity. Among these protoberberine alkaloids, epiberberine potently inhibited LSD1 (IC50 = 0.14 ± 0.01 μM) and was highly selective to LSD1 over MAO-A/B. Furthermore, epiberberine could induce the expression of CD86, CD11b and CD14 in THP-1 and HL-60 cells, confirming its cellular activity of inducing acute myeloid leukemia (AML) cells differentiation. Moreover, epiberberine prolonged the survival of THP-1 cells bearing mice and inhibited the growth of AML cells in vivo without obvious global toxicity. These findings give the potential application of epiberberine in AML treatment, and the isoquinoline-based tetracyclic scaffold could be used for further development of LSD1 inhibitors.
Databáze: OpenAIRE