7 research outputs found

    Lectin binding: MAL-I binds to Sia-α2-3Galβ1-4GlcNAc (Panel A, D, G and J), MAL-II binds to Sia-α2-3Galβ1-3GalNAc (Panel B, E, H and K) and SNA binds to Sia-α2-6-linkage (Panel C, F, I and L) to determine the Sias distribution on the ud- and wd-NHBE cells.

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    <p>MAL-I, MAL-II and SNA bindings presented on the (A-C) <i>en face</i> staining of ud-NHBE, (D-F) cross-section staining of ud-NHBE, (G-I) cross-section staining of wd-NHBE cells <i>in vitro</i> cultures and (J-L) the human bronchial biopsy in reddish brown.</p

    Virus titer detected in the supernatant of influenza virus infected ud- and wd-NHBE cells.

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    <p>Virus titer of the (A) HK98/H1N1 and (B) VN04/H5N1 was determined after influenza viruses infected in the ud- and wd-NHBE cells from 1 h to 48 h post infection at MOI of 2. (C) The comparison of viral replication kinetic between influenza HK98/H1N1 and VN04/H5N1 viruses in ud- and wd-NHBE at 24 h post infection. The chart showed the mean and the standard error of the virus titer pooled from three independent experiments. Single asterisk indicated statistically significant difference of means with <i>p</i><0.05, double asterisks indicated statistically significant differences of means with <i>p</i><0.01. Dotted line represents the detection limit of the TCID<sub>50</sub> assay.</p

    Wd-NHBE cells <i>in vitro</i> cultured in ALI (A) for 7 days and for (B) 21 days show the pseudostratified columnar type epithelium by H&E staining.

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    <p>(C) Positive staining of FITC-conjugated β-tubulin on apical surface of epithelium confirms the presence of cilia and (E) positive staining of biotinylated MUC5AC indicates the presence of mucin secreting goblet cells. Human bronchus stained with (D) FITC-conjugated β-tubulin and (F) biotinylated MUC5AC showed the presence of both ciliated and mucus secreting goblet cells along the epithelium. (G) Transepithelial resistance and (H) HAT mRNA expression by of the differentiating NHBE culture from D1 to D21 ALI culture.</p

    The (A) RANTES and (B) IP-10 protein of the supernatant collected at the apical compartment of the influenza HK98/H1N1 and VN04/H5N1 virus infected ud-NHBE (dark bars) and wd-NHBE (grey bars) cells at 24 h post infection.

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    <p>The chart showed the mean and the standard error from three independent experiments. Double asterisk indicated statistically significant difference of means with <i>p</i><0.001 and triple asterisks indicated statistically significant differences of means with <i>p</i><0.0001. UD indicated the protein concentration of the sample is below the detection limit.</p

    Influenza matrix (M) gene expression after infection of influenza HK98/H1N1 virus (grey bars) and influenza VN04/H5N1 virus (black bars).

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    <p>Ud-NHBE supported M gene transcription from 3 h to 24 h post infection for both influenza viruses while wd-NHBE supported a better influenza HK98/H1N1 virus M gene transcription than influenza H5N1 virus. Bars represented the mean M gene expressed per 10<sup>5</sup> β–actin house keeping gene and error bar represent the standard error of mean from three independent experiments. Asterisk indicates significant difference with <i>p</i><0.05.</p

    The (A) IFN-β, (B) RANTES and (C) IP-10 gene expression of the ud- and wd-NHBE cells at 6 h and 24 h post infection of HK98/H1N1 and VN04/H5N1.

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    <p>The chart showed the mean and the standard error from three independent experiments. Single asterisk indicated statistically significant difference of means with <i>p</i><0.05, double asterisks indicated statistically significant differences of means with <i>p</i><0.01 and triple asterisks indicated statistically significant differences of means with <i>p</i><0.001.</p
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