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Updated: Sep 11, 2025

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis

Published on: August 12, 2020

γδ T cells in pediatric sepsis.

Wenjie Zhou^1,2, Ting Feng², Liman Li³

¹Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, No. 20, Section 3, Ren Min Nan Lu, Chengdu 610041, Sichuan, China.

Journal of Leukocyte Biology

|August 12, 2025

Summary

Pediatric sepsis impairs gamma delta T cells (γδ T cells), weakening children's immune responses. Understanding these dysfunctions is key to developing better sepsis treatments for children.

Keywords:

cytokine dysfunction pediatric sepsis γδ t cells

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Last Updated: Sep 11, 2025

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Area of Science:

Immunology
Pediatric Critical Care
Infectious Diseases

Background:

Pediatric sepsis is a growing global health concern, leading to significant childhood morbidity and mortality.
Immune dysfunction is a hallmark of sepsis, necessitating research into specific immune cell roles.
Gamma delta T cells (γδ T cells) are increasingly recognized for their crucial role in immune responses.

Purpose of the Study:

To review the specific dysfunctions of γδ T cells in pediatric sepsis.
To explore the mechanisms underlying γδ T-cell impairment in children with sepsis.
To highlight the differences in γδ T-cell function between pediatric and adult sepsis patients.

Main Methods:

Literature review focusing on recent findings in pediatric sepsis and γδ T-cell immunology.
Analysis of studies detailing γδ T-cell activation, proliferation, cytokine production, exhaustion, and apoptosis in sepsis.
Comparative analysis of pediatric versus adult γδ T-cell responses in sepsis.

Main Results:

γδ T cells exhibit impaired activation and proliferation in pediatric sepsis.
Altered cytokine production, increased exhaustion, and apoptosis of γδ T cells contribute to weakened immunity.
Significant functional differences exist in γδ T-cell responses between children and adults during sepsis.

Conclusions:

γδ T-cell dysfunction plays a critical role in the pathogenesis of pediatric sepsis.
Targeting γδ T-cell immunology presents a potential avenue for novel therapeutic strategies.
Further research is vital to elucidate γδ T-cell roles and improve sepsis outcomes in children.