SATA-8505 Induces Interferon Gamma in Primary Human Keratinocytes.

Abstract

<p>Human peripheral mononuclear cells (PBMC) were cultured in triplicate at 2<sup>6</sup>/mL with SATA-8505 at 1 PFU/mL to 10<sup>8</sup> PFU/mL at ten-fold increments or diluent derived from the supernatant of an overnight culture of SA that had been pelleted and filter sterilized in a manner similar to the phage-containing media. At 72 hours supernatants were harvested and analyzed for IL-1ß (a), IL-6 (b), IL-17A (c), and IFN gamma (d). Human keratinocytes from primary foreskins (foreskin keratinocytes; FSKC) or the HaCaT cell line were cultured to confluence on 6-well plates and incubated in triplicate with SATA-8505 at 10<sup>4</sup> PFU/mL to 10<sup>8</sup> PFU/mL at ten-fold increments or TSB diluent. At 24 hours supernatants were harvested and analyzed for IL-1ß (e), IL-6 (f), and IFN gamma (g). Phage for all experiments was diluted in TSB from overnight culture of USA300 that was centrifuged at 5000rpm for 12 minutes and filter-sterilized through a 0.44 micrometer filter. Data shown are representative of 3 independent experiments using 3 different healthy volunteers (a-d) or a pool of 5 or more foreskin samples (e-g) and displayed as mean <u>+</u> s.e.m. * = p <0.05.</p

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