Journal: Biomedicines
Article Title: Thermal Water Reduces the Inflammatory Process Induced by the SARS-CoV-2 Spike Protein in Human Airway Epithelial Cells In Vitro
doi: 10.3390/biomedicines12122917
Figure Lengend Snippet: Effect of thermal water on the levels of SARS-CoV-2 spike protein receptors. Human nasal epithelial primary cells (HNEpCs) were stimulated (or not stimulated) for 24 h with 1 µg/mL SARS-CoV-2 spike protein in the presence or absence of 1% thermal water (H 2 O) or tap water. The concentrations of ACE2 and TMPRSS2 were determined in cell lysates ( a , b ). In addition, ACE2 and TMPRSS2 levels were determined in culture supernatants ( c , d ). Results are presented as the mean ± SD of four separate experiments. * p < 0.05 vs. untreated (UNT) cells; # p < 0.05 vs. spike-protein-stimulated cells; § p < 0.05 vs. spike-protein-stimulated cells treated with thermal water.
Article Snippet: Human nasal epithelial primary cells (HNEpCs) were obtained from PromoCell (PromoCell, Heidelberg, Germany) and cultured in an airway epithelial cell growth medium (PromoCell, Heidelberg, Germany) containing bovine pituitary extract (0.004 mL/mL), L-epidermal growth factor (recombinant human) (10 ng/mL), insulin (recombinant human) (5 µg/mL), hydrocortisone (0.5 µg/mL), epinephrine (0.5 µg/mL), triiodo-L-thyronine (6.7 ng/mL), transferrin (recombinant human) (10 µg/mL), and retinoic acid (0.1 ng/mL) according to the manufacturer’s recommendations.
Techniques: