Evaluation of the Antiviral Activity of Tabamide A and Its Structural Derivatives against Influenza Virus.
Int J Mol Sci
; 24(24)2023 Dec 09.
Article
in En
| MEDLINE
| ID: mdl-38139128
ABSTRACT
Influenza viruses cause severe endemic respiratory infections in both humans and animals worldwide. The emergence of drug-resistant viral strains requires the development of new influenza therapeutics. Tabamide A (TA0), a phenolic compound isolated from tobacco leaves, is known to have antiviral activity. We investigated whether synthetic TA0 and its derivatives exhibit anti-influenza virus activity. Analysis of structure-activity relationship revealed that two hydroxyl groups and a double bond between C7 and C8 in TA0 are crucial for maintaining its antiviral action. Among its derivatives, TA25 showed seven-fold higher activity than TA0. Administration of TA0 or TA25 effectively increased survival rate and reduced weight loss of virus-infected mice. TA25 appears to act early in the viral infection cycle by inhibiting viral mRNA synthesis on the template-negative strand. Thus, the anti-influenza virus activity of TA0 can be expanded by application of its synthetic derivatives, which may aid in the development of novel antiviral therapeutics.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Orthomyxoviridae
/
Viruses
/
Influenza, Human
Limits:
Animals
/
Humans
Language:
En
Journal:
Int J Mol Sci
Year:
2023
Document type:
Article