题目: Protein tyrosine phosphatase 1B (PTP1B) inhibitors from the deep-sea fungus Penicillium chrysogenum SCSIO 07007

作者: Wenrong Han, Jia Cai, Weimao Zhong, Guangming Xu, Fazuo Wang, Xinpeng Tian, Xiaojiang Zhou, Qingchao Liu, Yonghong Liu, Junfeng Wang

刊物: Bioorganic Chemistry

年卷期页: 2020, 96: 103646

摘要：Three new compounds, including two new 3,4,6-trisubstituted α-pyrone derivatives, chrysopyrones A and B (1 and 2), and one new indolyl diketopiperazine derivative, penilline C (3), along with twelve known compounds (4-15), were isolated and identified from the fungus Penicillium chrysogenum SCSIO 07007, separated from deep-sea hydrothermal vent environment sample collected from the Western Atlantic. Their structures and absolute configurations were determined by extensive spectroscopic analysis and electronic circular dichroism (ECD) calculations. All of the isolated compounds (1-15) were evaluated for their cytotoxic, antibacterial activities and enzyme inhibitory activities against acetylcholinesterase (AChE), α-glycosidase, and protein tyrosine phosphatase 1B (PTP1B). Among them, new compounds chrysopyrones A and B (1 and 2) displayed obvious inhibitory activities against PTP1B with IC₅₀ values of 9.32 and 27.8 μg/mL, respectively. Furthermore, molecular docking was performed to investigate the inside perspective of the action in PTP1B enzyme.