Related Experiment Videos
[Production of interleukin-1 by peripheral blood monocytes in children with respiratory diseases]
Insights
Interleukin-1 (IL-1) production by monocytes was significantly higher in children with bacterial respiratory infections but lower in those with acute viral respiratory infections (ARVI). Healthy children showed robust IL-1 responses to lipopolysaccharide (LPS).
Area of Science:
- Immunology
- Pediatrics
- Infectious Diseases
Background:
- Interleukin-1 (IL-1) is a key cytokine in immune responses.
- Understanding IL-1 production in children with respiratory infections is crucial for diagnosis and treatment.
- Acute Viral Respiratory Infections (ARVI) and secondary bacterial infections present distinct immunological challenges.
Purpose of the Study:
- To investigate the production of IL-1 by peripheral blood monocytes in healthy children and those with ARVI and complicated ARVI.
- To compare IL-1 production levels in response to lipopolysaccharide (LPS) across different pediatric respiratory conditions.
- To assess the diagnostic potential of IL-1 production as a biomarker for respiratory infections in children.
Main Methods:
- Examined 111 healthy children (3-7 years), 71 children with ARVI, and children (2-14 years) with ARVI complicated by bronchitis/pneumonia.
- Measured IL-1 production by peripheral blood monocytes stimulated with lipopolysaccharide (LPS).
- Quantified spontaneous IL-1 production in the absence of LPS.
Main Results:
- Healthy children demonstrated a high response rate (98.7%) to LPS-induced IL-1 production.
- A subset of healthy children (26.1%) exhibited spontaneous IL-1 production without LPS stimulation.
- Children with bacterial respiratory infections showed significantly increased IL-1 production compared to controls.
- Children with ARVI exhibited lowered IL-1 production compared to controls.
Conclusions:
- IL-1 production patterns differ significantly between viral and bacterial respiratory infections in children.
- Altered IL-1 production may serve as an indicator for distinguishing between ARVI and secondary bacterial infections.
- Further research is warranted to explore the therapeutic implications of modulating IL-1 in pediatric respiratory illnesses.
Abstract:
Overall 111 healthy children aged 3 to 7 years, 71 children with ARVI and those aged 2 to 14 years with ARVI complicated by bronchitis and pneumonia were examined. The level and rate of IL-1 production by peripheral blood monocytes in response to lipopolysaccharide (LPS) were determined. It has been established that 98.7% of the healthy children responded to LPS by marked production of IL-1. In 3 children, there was po synthesis of IL-1, in 26.1% of the healthy children, peripheral blood monocytes produced IL-1 without addition of LPS. In children with respiratory bacterial infections, there was a significant increase of IL-1 production as compared to the control. IL-1 production in ARVI was lowered.