Journal: bioRxiv
Article Title: Direct effects on endothelial cells are essential for perivascular cell (pericyte)-dependent amplification of orthoflavivirus NS1-mediated microvascular leakage
doi: 10.64898/2026.01.29.702573
Figure Lengend Snippet: (A-B) ECIS measurement of permeability of monocultures of HUVECs (A) or LSECs (B) treated with preconditioned media from HSCs treated with 1 µg/mL NS1 or 100 ng/mL TNF-α for 24 h; “Untreated” refers to HUVECs or LSECs treated with HSC media only and the “EC only” refers to untreated HUVECs or LSECs without the addition of HSC media. (C, D) Dextran permeability assay measuring HUVEC (C) or LSEC (D) permeability in coculture with HSCs 24 h post-treatment with 1 µg/mL NS1, 100 ng/mL TNF-α (positive control), or eluate (negative) control. Data points represent technical replicates within an experiment with different symbol shapes corresponding to different experiments (N=3, n=3). Bars represent the mean, and error bars represent SEM. (E, F) TEER measurement of semi-contact cocultures of HUVECs (A) or LSECs (B) cultured with HSCs and treated with 1 µg/mL NS1, 100 ng/mL TNF-α (positive control), or eluate (negative) control. Permeability measurements were normalised to each sample pre-treatment for ECIS data (A, B) or the untreated endothelial cell only control (EC only; dashed line) for EVOM data (E, F). In the time course experiments (A, B, E, F), each data point represents the mean ± SEM. In all experiments indicated significance is compared to untreated cocultures; * P < 0.05; ** P < 0.01; *** P < 0.001.
Article Snippet: Human umbilical vein endothelial cells (HUVECs) were obtained from PromoCell (Heidelberg, Germany); liver sinusoidal endothelial cells (LSECs) from Innoprot (Derio, Spain), and human hepatic stellate cells (HSCs) from Zen-Bio (Durham, NC USA).
Techniques: Permeability, FITC-Dextran Permeability Assay, Positive Control, Negative Control, Cell Culture, Control