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CLCA1 mediates the regulatory effect of IL-13 on pediatric asthma

Yanan Xu1, Lili Cao2, Jiong Chen3

  • 1Department of Research, Ningbo Women's and Children's Hospital, Ningbo, China.

Frontiers in Pediatrics
|October 31, 2022
PubMed

Insights

Chloride channel calcium activated 1 (CLCA1) and Interleukin-13 (IL-13) are elevated in pediatric asthma. CLCA1 mediates IL-13's role in asthma development, impacting bronchial epithelial cell activity and apoptosis.

Area of Science:

  • Immunology
  • Respiratory Medicine
  • Molecular Biology

Background:

  • Chloride channel calcium activated 1 (CLCA1) is a secreted protein implicated in inflammatory airway diseases.
  • Interleukin-13 (IL-13) is a key cytokine in allergic inflammation and asthma pathogenesis.

Purpose of the Study:

  • To investigate the role of CLCA1 and IL-13 in pediatric asthma.
  • To explore the relationship between CLCA1 expression and IL-13 levels in children with asthma.

Main Methods:

  • Serological analyses including RT-qPCR and ELISA were used to measure CLCA1, IL-4, and IL-13 levels in children with asthma.
  • In vitro studies utilized CCK-8 assay and flow cytometry to assess the impact of IL-13 on bronchial epithelial cell activity and apoptosis.
  • CLCA1 knockdown using siRNA was performed to evaluate its effect on IL-13-induced cellular changes.

Main Results:

  • Children with asthma exhibited significantly higher serum levels of CLCA1, IL-4, and IL-13 compared to healthy controls.
  • CLCA1 expression strongly correlated with IL-13 levels in the serum of asthmatic children.
  • IL-13 stimulation in vitro reduced bronchial epithelial cell activity and promoted apoptosis, effects which were reversed by CLCA1 knockdown.

Conclusions:

  • CLCA1 is highly expressed in pediatric asthma and plays a crucial role in mediating the effects of IL-13.
  • CLCA1 is a significant factor in the occurrence and progression of pediatric asthma, acting through IL-13 pathways.
Abstract

Keywords:
CLCA1IL-13IL-4in vitropediatric asthma

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