Aberrant Expression of Novel Cytokine IL-38 and Regulatory T Lymphocytes in Childhood Asthma
Publication in refereed journal


Times Cited
Altmetrics Information
.

Other information
AbstractWe investigated the expression of novel anti-inflammatory interleukin (IL)-38 and regulatory T (Treg) lymphocytes in childhood asthma patients. The protein and mRNA expression level of IL-38, periostin, peripheral CD4+CD25+CD134+ T lymphocytes as well as CD4+CD25highFoxP3+ and CD4+CD25highCD127− Treg lymphocytes from 40 asthmatic patients and 20 normal control (NC) subjects were studied using ELISA, qPCR and flow cytometry. Serum and supernatant cytokines/chemokines were determined by multiplex assay. Serum IL-38, IL-5, IL-17, IL-6, interferon-γ, periostin, IL-1β and IL-13 concentrations were significantly higher in asthmatic patients with or without steroid treatment than those in controls (all p < 0.05). The percentages of both CD4+CD25highFoxP3+ and CD4+CD25highCD127− Treg lymphocytes were markedly decreased in asthmatic patients with and without steroid treatment than those in controls (all p < 0.05). The elevated IL-38 concentration negatively correlated with the percentage of Treg lymphocytes in asthmatic patients with high level (>40 ng/mL) of periostin (p < 0.05). Although the comparable mRNA levels of IL-38 and its receptor IL-36R were found between patients and controls, the mRNA level of IL-38 positively correlated with IL-36R and negatively correlated with IL-10 in all asthmatic patients (both p < 0.05). The percentage of CD4+CD25+CD134+ activated T lymphocytes was also significantly higher in asthmatic patients with steroid treatment than those in controls (p < 0.05). This cross-sectional study demonstrated that the overexpression of circulating IL-38 may play a role in the immunopathogenesis in asthma.
All Author(s) ListMan Chu, Ida M.T. Chu, Edmund C.M. Yung, Christopher W.K. Lam, Ting F. Leung, Gary W.K. Wong, Chun K. Wong
Journal nameMolecules
Year2016
Month7
Day18
Volume Number21
Issue Number7
PublisherMDPI AG
Pages933
ISSN1420-3049
LanguagesEnglish-United States
Keywordschildhood asthma, cytokines, IL-38, regulatory T lymphocytes

Last updated on 2021-13-04 at 23:57