COVID-19(7) SARS-CoV-2(5) ACE2(4) Exosomes(4) COVID19 mutant(3) inhibition(3) SARS-CoV-2, Severe acute respiratory syndrome coronavirus 2(3) Artificial miRNA(3) Transcription(3) RIG-I, retinoic acid-inducible gene-I(2) Treg, regulatory T cells(2) immunomodulators(2) sTNFRSF1A, soluble TNF receptor superfamily member 1A(2) RORγt(2) COVID-19, Coronavirus disease 2019(2) CRBP-I, cytoplasmic retinol binding protein 1(2) CYP450, cytochrome P450 superfamily of enzymes(2) RIG-I(2) Type-I IFN, Type I interferon (IFN-α and IFN-β)(2) IL2RA, interleukin 2 receptor-alpha subunit(2) Treg(2) NF-κB, nuclear factor kappa light chain enhancer of activated B cells(2) PRR, Pattern Recognition Receptors(2) RALDH, retinaldehyde dehydrogenase enzyme(2) JAK, Janus kinases(2) RXR, retinoid X receptors(2) MDA5, Melanoma differentiation-associated protein 5(2) Vitamin D(2) cisRA, cis isomers of retinoic acid(2) vitamin A(2)