Journal: Frontiers in Immunology
Article Title: Bordetella pertussis infection activates the type I interferon signaling pathway to exacerbate respiratory tract inflammatory response
doi: 10.3389/fimmu.2025.1521970
Figure Lengend Snippet: Serological responses to PT, FHA, and PRN and cytokines in the supernatants of lung and spleen lymphocyte cultures from B. pertussis -infected WT and IFNAR1 -/- mice. Specific antibodies against B. pertussis and cytokines in the supernatants of lung and spleen lymphocyte cultures from B. pertussis -infected WT and IFNAR1 -/- mice. (A) Total serum IgG titers against pertussis toxoid (PT), filamentous hemagglutinin (FHA), and pertactin (PRN) at 28 dpi. (B, C) Splenic and pulmonary lymphocytes were isolated at 28 dpi. The cells were cultured at a concentration of 2 × 10 6 /ml at 37°C with 5% CO 2 and stimulated with the B. pertussis -specific antigens PT (2 μg/mL), FHA (2 μg/mL), and PRN (2 μg/mL). After incubation for 3 days, the culture supernatant was collected, and the levels of IFN-γ, IL-17A, and IL-4 were assayed via ELISA. Th1 response-associated cytokines (IFN-γ), Th17 response-associated cytokines (IL-17A), and (C) Th2 response-associated cytokines (IL-4) in the culture supernatants of splenic lymphocytes (B) and pulmonary lymphocytes (C) . The data are expressed as the means ± SEM. The P value is indicated as follows: * P < 0.05, ns, no significance (n=5).
Article Snippet: IFN-γ (Cat# VAL607, Novus Biologicals) levels were measured for Th1 responses; IL-17A (Cat# VAL610, Novus Biologicals) levels were tested for Th17 responses; and IL-4 (Cat# M4000B, R&D Systems) levels were detected for Th2 responses.
Techniques: Infection, Isolation, Cell Culture, Concentration Assay, Incubation, Enzyme-linked Immunosorbent Assay