1. Academic Validation
  2. 4β-Hydroxywithanolide E from Goldenberry (Whole Fruits of Physalis peruviana L.) as a Promising Agent against Chronic Obstructive Pulmonary Disease

4β-Hydroxywithanolide E from Goldenberry (Whole Fruits of Physalis peruviana L.) as a Promising Agent against Chronic Obstructive Pulmonary Disease

  • J Nat Prod. 2020 Apr 24;83(4):1217-1228. doi: 10.1021/acs.jnatprod.9b01265.
Wen-Jing Yang 1 Xue-Mei Chen 2 Shu-Qi Wang 1 Hui-Xin Hu 1 Xin-Ping Cheng 1 Lin-Tao Xu 1 Dong-Mei Ren 1 Xiao-Ning Wang 1 Bao-Bing Zhao 1 Hong-Xiang Lou 1 Tao Shen 1
Affiliations

Affiliations

  • 1 Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong 250100, People's Republic of China.
  • 2 Department of Maternity, Binzhou Central Hospital, Binzhou Shandong 256603, People's Republic of China.
Abstract

Environmental toxicant- and oxidant-induced [e.g., cigarette smoke (CS)] respiratory oxidative stress and inflammatory response play a vital role in the onset and progression of COPD. The nuclear factor erythroid 2-related factor 2 (Nrf2) represents an important mechanism for regulating intracellular oxidative stress and inflammatory response and is a promising target for developing agents against COPD. Herein, a bioactivity-guided purification of goldenberry (whole fruits of Physalis peruviana L.) led to the isolation of a novel and potent Nrf2 activator 4β-hydroxywithanolide E (4β-HWE). Our study indicated that (i) 4β-HWE activated the Nrf2-mediated defensive response through interrupting Nrf2-Keap1 protein-protein interaction (PPI) via modification of Cys151 and Cys288 cysteine residues in Keap1 and accordingly suppressing the ubiquitination of Nrf2. (ii) 4β-HWE enhanced intracellular antioxidant capacity and inhibited oxidative stress in normal human lung epithelial Beas-2B cells and wild-type AB zebrafish. (iii) 4β-HWE blocked LPS-stimulated inflammatory response and inhibited LPS-stimulated NF-κB activation in RAW 264.7 murine macrophages. (iv) 4β-HWE effectively suppressed oxidative stress and inflammatory response in a CS-induced mice model of pulmonary injury. Collectively, these results display the feasibility of using 4β-HWE to prevent or alleviate the pathological progression of COPD and suggest that 4β-HWE is a candidate or a leading molecule against COPD.

Figures
Products