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Co-amoxiclav affects cytokine production by human polymorphonuclear cells
G Reato1, A M Cuffini, V Tullio
1Biomedical Science and Human Oncology, University of Turin, Italy.
Abstract:
Some antimicrobial agents have been reported to modify the host immune responses both in vivo and in vitro. As we demonstrated previously that co-amoxiclav had beneficial properties which result in enhancement of the microbicidal functions of human poly-morphonuclear cell (PMNs), we investigated the modulatory effect of this combination on cytokine production by human PMNs in vitro. The addition of co-amoxiclav elicited the production by lipopolysaccharide (LPS)-stimulated PMNs of substantial amounts of some cytokines, namely IL-8 and IL-1beta, after the addition of Klebsiella pneumoniae. These cytokine levels were higher than those obtained by PMNs incubated in culture medium only, without co-amoxiclav.
Insights
Co-amoxiclav enhances the immune response by stimulating human neutrophils (PMNs) to produce higher levels of key cytokines, IL-8 and IL-1beta, when exposed to Klebsiella pneumoniae.
Area of Science:
- Immunology
- Microbiology
- Pharmacology
Background:
- Antimicrobial agents can modulate host immune responses.
- Co-amoxiclav previously showed enhanced microbicidal functions in human polymorphonuclear cells (PMNs).
Purpose of the Study:
- To investigate the modulatory effect of co-amoxiclav on cytokine production by human PMNs in vitro.
- To determine if co-amoxiclav influences the immune response to bacterial stimulation.
Main Methods:
- Human PMNs were stimulated with lipopolysaccharide (LPS) and Klebsiella pneumoniae.
- Co-amoxiclav was added to assess its impact on cytokine production.
- Cytokine levels (IL-8, IL-1beta) were measured in vitro.
Main Results:
- Co-amoxiclav significantly elicited the production of IL-8 and IL-1beta by LPS-stimulated PMNs.
- Cytokine levels were substantially higher in the presence of co-amoxiclav compared to controls.
- This effect was observed specifically after stimulation with Klebsiella pneumoniae.
Conclusions:
- Co-amoxiclav modulates human PMN cytokine production in vitro.
- The combination therapy enhances the production of specific pro-inflammatory cytokines upon bacterial challenge.