Euphopias G - J, macrocyclic diterpenes with anti-zika virus activity from Euphorbia helioscopia L.

Fitoterapia

Key Laboratory of Medicinal Chemistry for Natural Resource of Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, and School of Pharmacy, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China. Electronic address:

Published: September 2023

AI Article Synopsis

  • - Four new diterpenoids (1-4) and sixteen known ones (5-20) were extracted from the plant Euphorbia helioscopia L., with compounds 1 and 2 categorized as rhamofolane, compound 3 as lathyranes, and compound 4 as jathophanes.
  • - The isolated compounds were evaluated for their cytotoxicity and efficacy against the Zika virus, with compounds 9 and 15 demonstrating low cytotoxicity and high anti-Zika activity (EC values of 2.63 and 5.94 μM, respectively).
  • - Researchers further assessed the inhibitory effects of these compounds on protein levels using techniques like Western blotting and immunof

Article Abstract

Four new diterpenoids (1-4) and sixteen known diterpenoids (5-20) were purified from the whole plant of Euphorbia helioscopia L. Compounds 1 and 2 were rhamofolane diterpenoids with a 5/7/6 tricyclic systems, compound 3 was a lathyranes diterpenoid, and compound 4 was a jathophanes diterpenoid. The isolated compounds were tested for their cytotoxicity and anti-Zika virus properties, and compounds 9 and 15 showed low cytotoxicity and strong anti-Zika virus properties with EC 2.63 and 5.94 μM, respectively. Further, the inhibitory effects of compounds on protein levels were determined using Western blotting and immunofluorescence assays.

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Source
http://dx.doi.org/10.1016/j.fitote.2023.105614DOI Listing

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