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Wang, E. et al.

Modulation of cytokines and chemokines, limited pulmonary vascular bed permeability, and prevention of septicemia and death with ceftriaxone and interleukin-10 in pneumococcal pneumonia.

Interleukin (IL)-10 is a biologically active anti-inflammatory and immunomodulatory cytokine. The respective effects or combined effect of ceftriaxone (Ctri) and IL-10 on host response was studied in a mouse model of lethal pneumococcal pneumonia. A once daily intraperitoneal (ip) injection of IL-10 (1 microg/mouse) for 2 days did not affect inflammation but accelerated bacterial dissemination to the bloodstream. Of mice treated with 1 ip 20 mg/kg Ctri injection, 40% developed septicemia, and only 52% survived. However, the addition of IL-10 to Ctri enhanced bacterial clearance, prevented septicemia, and yielded a 95% survival rate (P<.001). This approach also significantly (P<.05) decreased IL-1beta, IL-6, macrophage inflammatory protein-2, and myeloperoxidase levels in lungs and the production of nitric oxide in bronchoalveolar lavage fluid. Furthermore, Ctri plus IL-10 significantly (P<.05) reduced pulmonary vascular leakage and the appearance of red blood cells in alveoli. These data indicate a beneficial role for IL-10 as an adjunctive therapy to antibiotics against pneumococcal pneumonia.[1]

References

Modulation of cytokines and chemokines, limited pulmonary vascular bed permeability, and prevention of septicemia and death with ceftriaxone and interleukin-10 in pneumococcal pneumonia. Wang, E., Simard, M., Ouellet, N., Bergeron, Y., Beauchamp, D., Bergeron, M.G. J. Infect. Dis. (2000) [Pubmed]

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