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A Fast and Reliable Pipeline for Bacterial Transcriptome Analysis Case study: Serine-dependent Gene Regulation in Streptococcus pneumoniae
10:18

A Fast and Reliable Pipeline for Bacterial Transcriptome Analysis Case study: Serine-dependent Gene Regulation in Streptococcus pneumoniae

Published on: April 25, 2015

Dynamic changes of TrkB gene expression in Streptococcus pneumoniae meningitis after treatment with antibiotics and

Ling Li1, Quan-Xiang Shui, Zheng-Yan Zhao

  • 1Department of Pediatric Neurology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China. lingli12@live.cn

World Journal of Pediatrics : WJP
|May 24, 2011
PubMed
Abstract

Insights

TrkB signaling may protect the brain in Streptococcus pneumoniae meningitis, but antibiotic treatment might weaken this effect. Targeting TrkB receptors could prevent neurological damage in children.

Area of Science:

  • Neuroscience
  • Infectious Diseases
  • Pharmacology

Background:

  • Neurological sequelae of Streptococcus pneumoniae meningitis remain a challenge despite advances in antibiotics.
  • Brain-derived neurotrophic factor (BDNF) receptor TrkB mRNA expression is linked to these neurological outcomes.

Purpose of the Study:

  • To investigate the role of TrkB mRNA expression in a rat model of Streptococcus pneumoniae meningitis.
  • To evaluate the impact of antibiotic and dexamethasone treatment on TrkB mRNA levels.

Main Methods:

  • A rat model of Streptococcus pneumoniae meningitis was established.
  • Rats were treated with antibiotics or antibiotics plus dexamethasone.
  • In situ hybridization was used to detect TrkB gene expression in brain tissue.

Main Results:

  • TrkB mRNA was upregulated in infected rat brains within 24 hours.
  • Antibiotic treatment led to a dose-dependent downregulation of TrkB mRNA.
  • Dexamethasone combined with antibiotics maintained TrkB mRNA upregulation; expression was also noted in inflammatory cells.

Conclusions:

  • TrkB signaling pathways likely play a neuroprotective role in Streptococcus pneumoniae meningitis.
  • Antibiotic therapy may diminish the protective role of TrkB.
  • Targeting TrkB receptors presents a potential strategy to prevent neurological sequelae.

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