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Preliminary Evidence for a Compromised T-Cell Compartment in Maltreated Children with Depression and Posttraumatic

Hannes Bielas1, Andreas Jud, Ulrich Lips

  • 1Department of Psychosomatics and Psychiatry, University Children's Hospital Zurich, Zurich, Switzerland.

Neuroimmunomodulation
|February 28, 2015
PubMed

Insights

Childhood maltreatment is linked to lower T-cell counts in depressed and PTSD-affected youth. Recent thymic emigrant (RTE) cells and T-helper cells were particularly affected in these vulnerable children.

Area of Science:

  • Immunology
  • Child Psychology
  • Psychiatry

Background:

  • Adverse childhood experiences and affective disorders are linked to inflammation and altered lymphocyte counts in adults.
  • Animal models suggest social stress impacts recent thymic emigrant (RTE) cells, crucial for T-cell maintenance.

Purpose of the Study:

  • To investigate the association between lymphocyte subsets and depression/PTSD in maltreated children.
  • To compare immune profiles of maltreated children with healthy controls.

Main Methods:

  • Studied 16 maltreated children (6-17 years) and 14 controls 1-3 years post-intervention.
  • Utilized psychological assessments and fluorescent-activated cell sorting for blood analysis.

Main Results:

  • Depression in maltreated youth correlated with lower counts of RTEs and T-helper cells.
  • PTSD was associated with lower naive T-cell counts.
  • Maltreated participants with depression showed reduced RTE percentages compared to controls.

Conclusions:

  • Preliminary findings suggest a compromised T-cell compartment in maltreated children with psychiatric symptoms.
  • Further research is needed, especially on the role of RTEs in this population.
  • The study's pilot nature and small sample size necessitate cautious interpretation.
Abstract

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