Transcriptional inhibition of feline immunodeficiency virus by alpha-amanitin

Autor: Takashige Kashimoto, Kazuhiko Kawashima, Satomi Yamamoto, Yurina Fukuda, Hisaaki Sato, Taishi Tanabe
Rok vydání: 2021
Předmět:
Zdroj: The Journal of Veterinary Medical Science
ISSN: 1347-7439
0916-7250
Popis: Alpha-amanitin, one of the amatoxins in egg amanita, has a cyclic peptide structure, and was reported as having antiviral activity against several viruses. We investigated whether α-amanitin has antiviral activity against feline immunodeficiency virus (FIV). FL-4 cells persistently infected with FIV Petaluma were cultured with α-amanitin. Reverse transcriptase (RT) activity in the supernatant of FL-4 cells was significantly inhibited by α-amanitin. In addition, the production of FIV core protein in FL-4 cells was inhibited by α-amanitin when analyzed by western blotting. Furthermore, α-amanitin inhibited the transcription of FIV in real-time RT-PCR. These data suggested that α-amanitin showed anti-FIV activity by inhibiting the RNA transcription level.
Databáze: OpenAIRE