Abstract Title:

Parthenolide Influences Herpes simplex virus 1 Replication in vitro.

Abstract Source:

Intervirology. 2018 Jul 12:1-9. Epub 2018 Jul 12. PMID: 30001535

Abstract Author(s):

Érica Benassi-Zanqueta, Caroline Fernandes Marques, Samara Requena Nocchi, Benedito Prado Dias Filho, Celso Vataru Nakamura, Tania Ueda-Nakamura

Article Affiliation:

Érica Benassi-Zanqueta


BACKGROUND/AIMS: Parthenolide is a sesquiterpene lactone that is present in plants of the Tanacetum genus, for which many biological effects have already been reported, including antiherpetic activity. Although the effectiveness of parthenolide against Herpes simplex virus 1 (HSV-1) has already been demonstrated, such findings are still controversial. The objective of this study was to investigate the ways in which parthenolide exerts anti-HSV-1 activity.

METHODS: The cytotoxicity and antiviral activity of parthenolide were determined by the MTT method and plaque reduction assay, respectively. The expression of cell and viral proteins during the treatment of infected cells was investigated by Western blot.

RESULTS: Both strains of HSV-1 were sensitive to parthenolide, and parthenolide was active only after penetration of the virus into the host cell. The expression of p65 protein decreased, the expression of caspases 8 and 9 increased, and the expression of c-Jun N-terminal kinase (JNK) and p38 protein was altered in infected cells after parthenolide treatment, resulting in lower cell survival. The low expression of viral proteins gB, gD, and ICP0 confirmed the reduction of HSV-1 particle production.

CONCLUSION: Parthenolide exerts anti-HSV-1 activity by impairing cell viability, which consequently interferes with the efficient infection and production of new viral particles.

Study Type : In Vitro Study

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