Indication of Nerve Growth Factor Binding Components from Herbal Extracts by HerboChip: a Platform for Drug Screening on a Chip
Overview
Authors
Affiliations
Background: HerboChip is an array of different fractions deriving from herbal extracts. This study aimed to identify effective components from Chinese medicine (CM) that interact with nerve growth factor (NGF) as a target using HerboChip.
Methods: Fifty types of CM that are traditionally used as remedies for emotion imbalance were selected and extracted with 50 % ethanol. Biotinylated-NGF was hybridized with over 300 chips coated with different HPLC-separated fractions from CM extracts and straptavidin-Cy5 was used to identify the NGF-bound fractions.
Results: Over 300 chips were screened within a week, and 17 positive hits were identified. The interaction of the identified herbal extracts with NGF was confirmed in cultured PC12 cells. Co-application of NGF and herbal extract interfered with NGF-induced expression of neurofilaments, including NF68 and NF200 in cell cultures. Western blot analysis comparing the intensity of phosphorylated cAMP response element-binding protein (CREB) over total CREB showed NGF-induced CREB phosphorylation was modulated by the identified herbal extracts. Five CM herbs showed activating activities on the NGF response and nine CM herbs showed inhibiting activities.
Conclusion: The current result supported the applicability of HerboChip for screening NGF binding components from herbal extracts.
Liu Y, Liang J, Guo G, Qiu Y, Yu L, Tsim K Chin Med. 2024; 19(1):122.
PMID: 39252102 PMC: 11382504. DOI: 10.1186/s13020-024-00987-x.
Gao A, Xia T, Mak M, Zhu K, Dong T, Tsim K Evid Based Complement Alternat Med. 2022; 2022:8809546.
PMID: 35754681 PMC: 9225919. DOI: 10.1155/2022/8809546.
Hu W, Wang H, Xia Y, Dai D, Xiong Q, Dong T Front Pharmacol. 2020; 11:526.
PMID: 32410995 PMC: 7198864. DOI: 10.3389/fphar.2020.00526.
Chan G, Hu W, Zheng Z, Huang M, Lin Y, Wang C Evid Based Complement Alternat Med. 2018; 2018:1502457.
PMID: 29681968 PMC: 5850895. DOI: 10.1155/2018/1502457.