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Intravenous Endotoxin Challenge in Healthy Humans: An Experimental Platform to Investigate and Modulate Systemic Inflammation
Published on: May 16, 2016
Infection, inflammation and immune dysregulation: evolving perspectives on the host response
Conor John O'Donovan1,2, Athimalaipet V Ramanan3,4
1School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK.
Archives of Disease in Childhood
|May 20, 2026
Summary
Host inflammatory responses can cause severe illness in children. Targeted immunomodulation offers a promising approach to manage harmful inflammation during pediatric infections without compromising overall immunity.
Area of Science:
- Pediatric Immunology
- Infectious Diseases
- Immunomodulation
Background:
- Host inflammatory responses significantly contribute to infection-related morbidity, especially in severe pediatric conditions like sepsis and ARDS.
- Traditional views on immunosuppression during antimicrobial therapy are evolving with new insights into immune biology.
- Pediatric responses to infection differ due to developmental stage and distinct exposure histories.
Purpose of the Study:
- To review the evolving landscape of immunomodulation in pediatric infection management.
- To highlight recent advances and ongoing research in utilizing targeted immunomodulators for pediatric infections.
- To emphasize the need for collaborative research networks in pediatric infection management.
Main Methods:
- Review of current literature and clinical trial data on immunomodulatory agents in pediatric infections.
- Analysis of the impact of COVID-19 on the acceptance and use of immunomodulation in children.
- Exploration of ongoing and emerging therapeutic strategies, including IL-1 blockade, corticosteroids, and biologics.
Main Results:
- The COVID-19 pandemic accelerated the acceptance of immunomodulation, including corticosteroids and baricitinib, in pediatric care.
- Platform trials for pediatric inflammatory multisystem syndrome identified benefits of methylprednisolone and tocilizumab.
- Evidence for immunomodulation in other pediatric infections like dengue and influenza remains limited, with ongoing research exploring various agents.
Conclusions:
- Targeted immunomodulation presents a nuanced and evolving strategy for managing pediatric infections, balancing inflammation control with host defense.
- Adaptive trial designs and immunophenotype-guided approaches show promise for tailoring treatments in pediatric sepsis and hyperinflammatory syndromes.
- Further large-scale, collaborative research is crucial to translate these advances into routine pediatric clinical practice.
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