Acta Veterinaria et Zootechnica Sinica ›› 2021, Vol. 52 ›› Issue (10): 2915-2923.doi: 10.11843/j.issn.0366-6964.2021.010.022

• BASIC VETERINARY MEDICINE • Previous Articles     Next Articles

Evaluation of the Activity of Sabinene against Toxoplasma gondii in vitro

QIU Yanhua, ZHAI Bintao, SHANG Xiaofei, ZHOU Xuzheng, LI Bing, ZHANG Jiyu*   

  1. Key Laboratory of New Veterinary Medicine Engineering of Gansu Province, Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture/Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
  • Received:2021-01-22 Online:2021-10-23 Published:2021-10-27

Abstract: This study aimed at screening terpenoids with anti-Toxoplasma gondii activity and evaluating their activity in vitro. The activity of 26 terpenoids against Toxoplasma gondii (T. gondii) in vitro was screened. The toxicity and safe concentration of these active compounds to Vero cells were determined by CCK-8 kit. The activity against T. gondii was further identified by Giemsa staining. The activity of the active compounds against T. gondii in vitro was evaluated by cell immunofluorescence, Giemsa staining and biochemical luminescence method. The results showed that among the 26 terpenoids, sabinene had a significant activity against T. gondii. The IC50 of sabinene to RH-2F was 90.76 μg·mL-1. The results of Giemsa staining and cellular immunofluorescence showed that sabinene had significant anti-proliferative effect on two intracellular strains of T. gondii and had a very significant inhibitory effect on the invasion of T. gondii (P<0.001). It has been found that sabinene had a significant inhibitory effect on the invasion and intracellular proliferation of T. gondii, and can be used as a potential lead compound against T. gondii.

Key words: Toxoplasma gondii, terpenoids, curzerene, astramembrangenin, sabinene

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