Repurposing Methotrexate in Dampening SARS-CoV2-S1-Mediated IL6 Expression: Lessons Learnt from Lung Cancer.
Pruthvi GowdaShruti PatrickShanker Datt JoshiRajesh Kumar KumawatEllora SenPublished in: Inflammation (2021)
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection (COVID-19) is associated with uncontrolled inflammatory responses. Loss of pulmonary angiotensin-converting enzyme 2 (ACE2) function has been associated with SARS-CoV-2 infection. The aberrant signalling and dysregulated inflammation characteristic of lung cancer have marked similarities with SARS-CoV-2 infection. Spearman's correlation analysis of The Cancer Genome Atlas (TCGA) datasets indicated an inverse correlation between ACE2 and IL6 in lung adenocarcinoma. qRT-PCR analysis revealed CoV-2-SRBD-mediated diminished ACE2 expression in lung cancer cells that was concomitant with increased IL6 expression. Western blot and qRT-PCR analysis suggested that treatment with methotrexate (MTx) dampened CoV-2-SRBD-mediated increase in JAK1/STAT3 phosphorylation, gp130, IL6, and folate-binding protein (FBP) expressions. MTx also rescued the diminished expression of ACE2 in CoV-2-SRBD transfected cells. As lung tissue injury in severely affected COVID-19 patients is characterised by aberrant inflammatory response, repurposing MTx as an effective therapy against critical regulators of inflammation in SARS-CoV-2 infection warrants investigation.
Keyphrases
- respiratory syndrome coronavirus
- sars cov
- angiotensin converting enzyme
- coronavirus disease
- poor prognosis
- binding protein
- angiotensin ii
- inflammatory response
- oxidative stress
- induced apoptosis
- transcription factor
- stem cells
- genome wide
- long non coding rna
- cell therapy
- mesenchymal stem cells
- papillary thyroid
- endoplasmic reticulum stress
- protein kinase
- real time pcr