Frontiers in Immunology (Dec 2022)

Methotrexate inhibition of SARS-CoV-2 entry, infection and inflammation revealed by bioinformatics approach and a hamster model

  • Yun-Ti Chen,
  • Yu-Hsiu Chang,
  • Yu-Hsiu Chang,
  • Nikhil Pathak,
  • Shey-Cherng Tzou,
  • Shey-Cherng Tzou,
  • Shey-Cherng Tzou,
  • Yong-Chun Luo,
  • Yen-Chao Hsu,
  • Tian-Neng Li,
  • Jung-Yu Lee,
  • Yi-Cyun Chen,
  • Yu-Wei Huang,
  • Hsin-Ju Yang,
  • Nung-Yu Hsu,
  • Hui-Ping Tsai,
  • Tein-Yao Chang,
  • Tein-Yao Chang,
  • Shu-Chen Hsu,
  • Ping-Cheng Liu,
  • Yuan-Fan Chin,
  • Wen-Chin Lin,
  • Chuen-Mi Yang,
  • Hsueh-Ling Wu,
  • Chia-Ying Lee,
  • Hui-Ling Hsu,
  • Hui-Ling Hsu,
  • Yi-Chun Liu,
  • Jhih-Wei Chu,
  • Jhih-Wei Chu,
  • Lily Hui-Ching Wang,
  • Jann-Yuan Wang,
  • Chih-Heng Huang,
  • Chih-Heng Huang,
  • Chih-Heng Huang,
  • Chi-Hung Lin,
  • Chi-Hung Lin,
  • Chi-Hung Lin,
  • Po-Shiuan Hsieh,
  • Yan-Hwa Wu Lee,
  • Yan-Hwa Wu Lee,
  • Yi-Jen Hung,
  • Yi-Jen Hung,
  • Jinn-Moon Yang,
  • Jinn-Moon Yang,
  • Jinn-Moon Yang

DOI
https://doi.org/10.3389/fimmu.2022.1080897
Journal volume & issue
Vol. 13

Abstract

Read online

BackgroundDrug repurposing is a fast and effective way to develop drugs for an emerging disease such as COVID-19. The main challenges of effective drug repurposing are the discoveries of the right therapeutic targets and the right drugs for combating the disease.MethodsHere, we present a systematic repurposing approach, combining Homopharma and hierarchal systems biology networks (HiSBiN), to predict 327 therapeutic targets and 21,233 drug-target interactions of 1,592 FDA drugs for COVID-19. Among these multi-target drugs, eight candidates (along with pimozide and valsartan) were tested and methotrexate was identified to affect 14 therapeutic targets suppressing SARS-CoV-2 entry, viral replication, and COVID-19 pathologies. Through the use of in vitro (EC50 = 0.4 μM) and in vivo models, we show that methotrexate is able to inhibit COVID-19 via multiple mechanisms.ResultsOur in vitro studies illustrate that methotrexate can suppress SARS-CoV-2 entry and replication by targeting furin and DHFR of the host, respectively. Additionally, methotrexate inhibits all four SARS-CoV-2 variants of concern. In a Syrian hamster model for COVID-19, methotrexate reduced virus replication, inflammation in the infected lungs. By analysis of transcriptomic analysis of collected samples from hamster lung, we uncovered that neutrophil infiltration and the pathways of innate immune response, adaptive immune response and thrombosis are modulated in the treated animals.ConclusionsWe demonstrate that this systematic repurposing approach is potentially useful to identify pharmaceutical targets, multi-target drugs and regulated pathways for a complex disease. Our findings indicate that methotrexate is established as a promising drug against SARS-CoV-2 variants and can be used to treat lung damage and inflammation in COVID-19, warranting future evaluation in clinical trials.

Keywords