主 办:北 京 中 医 药 大 学
ISSN 1006-2157 CN 11-3574/R

JOURNAL OF BEIJIGN UNIVERSITY OF TRADITIONAL CHINE ›› 2018, Vol. 41 ›› Issue (1): 71-75.doi: 10.3969/j.issn.1006-2157.2018.01.012

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Screening of active components from phloroglucinols in Mianma Guanzhong for anti-neuraminidase of H1N1 influenza virus*

Yan Yantao1, Wang Juan1, Geng Donghao2, Fu Shenzhen1, Hu Jinghong3, Gao Zengping1#   

  1. 1 School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China;
    2 School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China;
    3 School of Preclinical Medicine, Beijing University of Chinese Medicine, Beijing 100029, China;
  • Received:2016-11-16 Online:2018-01-30 Published:2018-01-30
  • Supported by:
    National Natural Science Foundation of China (No. 31270400)

Abstract: Objective To study the inhibitory effect of phloroglucinols in Mianma Guanzhong (Dryopteris crassirhizoma Nakai, Basket Fern Nakai) on neuraminidase ( NA ) of H1N1 influenza virus. Methods
A library of 34 phloroglucinols ligands was established through retrieving, and X-ray three-dimensional crystal structure file of NA (H1N1) was downloaded from Protein Data Bank. The phloroglucinols possessing lower binding energy and stronger hydrogen bond interaction with NA were screened by using AutoDock Vina software and LigPlot+software, and the inhibitory effect of candidate phloroglucinols on NA was verified by using fluorometric assay. Results There were 4 phloroglucinols (filixic acids ABA, ABB, ABP and ABBA) with better combination with NA screened through molecular docking. The Results of fluorometric assay showed that dryocrassin ABBA had the strongest inhibitory effect on NA [(IC50) =(26.73±0.57) μmol/L]. Conclusion Dryocrassin ABBA in Mianma Guanzhong has higher effect of anti-NA of H1N1 influenza virus, which lays a foundation for further study on new anti-influenza drugs.

Key words: Mianma Guanzhong (Dryopteris crassirhizoma Nakai, Basket Fern Nakai), phloroglucinols, H1N1 influenza virus, molecular docking, neuraminidase

CLC Number: 

  • R284