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  • Fagerås Böttcher, MalinLinköpings universitet,Pediatrik,Hälsouniversitetet (author)

A TLR4 polymorphism is associated with asthma and reduced lipopolysaccharide-induced interleukin-12(p70) responses in Swedish children

  • Article/chapterEnglish2004

Publisher, publication year, extent ...

  • Elsevier BV,2004
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:liu-16779
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-16779URI
  • https://doi.org/10.1016/j.jaci.2004.04.050DOI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:1949240URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Background Bacterial signals play an important role in the maturation of the immune system. Polymorphisms in genes coding for receptors to bacterial components can alter the immune responsiveness of the host to microbial agents and may indicate the development of aberrant immune responses that are associated with immune-mediated diseases such as atopic diseases. Objective The study's objective was to investigate the relationship between TLR4 and CD14 gene polymorphisms, the LPS responsiveness of PBMCs, and the presence of asthma and allergic rhinoconjunctivitis in children. Methods The TLR4 (Asp299Gly) and CD14/−159 polymorphisms were determined in 115 Swedish children aged 8 and 14 years. LPS-induced IL-12(p70), IL-10, and IFN-γ responses of PBMCs from 69 of the children were analyzed by means of ELISA. The levels of soluble CD14 in serum samples were analyzed by means of ELISA, and the total IgE levels were analyzed by means of UniCAP Total IgE (Pharmacia Diagnostics, Uppsala, Sweden). Results Decreased LPS-induced IL-12(p70) and IL-10 responses were associated with the TLR4 (Asp299Gly) polymorphism and independently with asthma, especially atopic asthma. The TLR4 (Asp299Gly) polymorphism was associated with a 4-fold higher prevalence of asthma in school-aged children (adjusted odds ratio 4.5, 95% CI 1.1-17.4) but not to allergic rhinoconjunctivitis. Conclusion A TLR4 polymorphism modifies innate immune responses in children and may be an important determinant for the development of asthma. This may influence the outcome of intervention studies that use microbial stimuli as immune modulators.

Subject headings and genre

  • asthma; TLR4; lipopolysaccharide; IL-12; IL-10 sCD14
  • Soluble CD14; SPT
  • Skin prick test; Th
  • T-helper; TLR
  • Toll-like receptor
  • MEDICINE
  • MEDICIN

Added entries (persons, corporate bodies, meetings, titles ...)

  • Hmani-Aifa, MouniraLinköpings universitet,Institutionen för biomedicin och kirurgi,Hälsouniversitetet (author)
  • Lindström Lundberg, AnnaLinköpings universitet,Pediatrik,Hälsouniversitetet(Swepub:liu)annli40 (author)
  • Jenmalm, Maria ChristinaLinköpings universitet,Pediatrik,Hälsouniversitetet(Swepub:liu)marje18 (author)
  • Mai, Xiao-MeiLinköpings universitet,Pediatrik,Hälsouniversitetet(Swepub:liu)xiama17 (author)
  • Nilsson, LennartÖstergötlands Läns Landsting,Linköpings universitet,Pediatrik,Hälsouniversitetet,Barn- och ungdomskliniken i Linköping(Swepub:liu)lenni67 (author)
  • Aniansson Zdolsek, HelenaÖstergötlands Läns Landsting,Linköpings universitet,Pediatrik,Hälsouniversitetet,Barn- och ungdomskliniken i Linköping(Swepub:liu)helzd05 (author)
  • Björkstén, BengtKarolinska Institutet (author)
  • Söderkvist, PeterLinköpings universitet,Cellbiologi,Hälsouniversitetet(Swepub:liu)petso43 (author)
  • Vaarala, OutiLinköpings universitet,Pediatrik,Hälsouniversitetet(Swepub:liu)outva41 (author)
  • Linköpings universitetPediatrik (creator_code:org_t)

Related titles

  • In:Journal of Allergy and Clinical Immunology: Elsevier BV114:3, s. 561-5670091-67491097-6825

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