FIG. 3.

Levels of IL-8, IL-6, IL-1β, IL-1α, and sICAM-1 following infection of endocervical cells with N. gonorrhoeae. Culture supernatants were collected 4 and 8 h after incubation under the following conditions: uninfected nonstimulated (control), uninfected stimulated with TNF-α, and infected with the N. gonorrhoeae F62 piliated variant (F62P⁺) expressing GFP. Values are means plus standard deviations of quadruplicate determinations and are representative of two independent experiments. ∗, P < 0.05 versus nonstimulated control.