TY - JOUR
T1 - Picolinic acid is a broad-spectrum inhibitor of enveloped virus entry that restricts SARS-CoV-2 and influenza A virus in vivo
AU - Narayan, Rohan
AU - Sharma, Mansi
AU - Yadav, Rajesh
AU - Biji, Abhijith
AU - Khatun, Oyahida
AU - Kaur, Sumandeep
AU - Kanojia, Aditi
AU - Joy, Christy Margrat
AU - Rajmani, Raju
AU - Sharma, Pallavi Raj
AU - Jeyasankar, Sharumathi
AU - Rani, Priya
AU - Shandil, Radha Krishan
AU - Narayanan, Shridhar
AU - Rao, Durga Chilakalapudi
AU - Satchidanandam, Vijaya
AU - Das, Saumitra
AU - Agarwal, Rachit
AU - Tripathi, Shashank
N1 - Publisher Copyright:
© 2023 The Author(s)
PY - 2023/8/15
Y1 - 2023/8/15
N2 - The COVID-19 pandemic highlights an urgent need for effective antivirals. Targeting host processes co-opted by viruses is an attractive antiviral strategy with a high resistance barrier. Picolinic acid (PA) is a tryptophan metabolite endogenously produced in mammals. Here, we report the broad-spectrum antiviral activity of PA against enveloped viruses, including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza A virus (IAV), flaviviruses, herpes simplex virus, and parainfluenza virus. Mechanistic studies reveal that PA inhibits enveloped virus entry by compromising viral membrane integrity, inhibiting virus-cellular membrane fusion, and interfering with cellular endocytosis. More importantly, in pre-clinical animal models, PA exhibits promising antiviral efficacy against SARS-CoV-2 and IAV. Overall, our data establish PA as a broad-spectrum antiviral with promising pre-clinical efficacy against pandemic viruses SARS-CoV-2 and IAV.
AB - The COVID-19 pandemic highlights an urgent need for effective antivirals. Targeting host processes co-opted by viruses is an attractive antiviral strategy with a high resistance barrier. Picolinic acid (PA) is a tryptophan metabolite endogenously produced in mammals. Here, we report the broad-spectrum antiviral activity of PA against enveloped viruses, including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza A virus (IAV), flaviviruses, herpes simplex virus, and parainfluenza virus. Mechanistic studies reveal that PA inhibits enveloped virus entry by compromising viral membrane integrity, inhibiting virus-cellular membrane fusion, and interfering with cellular endocytosis. More importantly, in pre-clinical animal models, PA exhibits promising antiviral efficacy against SARS-CoV-2 and IAV. Overall, our data establish PA as a broad-spectrum antiviral with promising pre-clinical efficacy against pandemic viruses SARS-CoV-2 and IAV.
KW - SARS-CoV-2
KW - antiviral
KW - influenza
KW - membrane fusion
KW - picolinic acid
KW - pre-clinical animal models
KW - viral entry
UR - http://www.scopus.com/inward/record.url?scp=85167777333&partnerID=8YFLogxK
U2 - 10.1016/j.xcrm.2023.101127
DO - 10.1016/j.xcrm.2023.101127
M3 - Article
C2 - 37463584
AN - SCOPUS:85167777333
SN - 2666-3791
VL - 4
JO - Cell Reports Medicine
JF - Cell Reports Medicine
IS - 8
M1 - 101127
ER -