Search: onr:"swepub:oai:gup.ub.gu.se/197455" >
MicroRNA-155 is ess...
MicroRNA-155 is essential for TH2-mediated allergen-induced eosinophilic inflammation in the lung.
-
- Malmhäll, Carina, 1959 (author)
- Gothenburg University,Göteborgs universitet,Krefting Research Centre
-
- Alawieh, Sahar, 1987 (author)
- Gothenburg University,Göteborgs universitet,Krefting Research Centre
-
- Lu, You, 1982 (author)
- Gothenburg University,Göteborgs universitet,Krefting Research Centre
-
show more...
-
- Sjöstrand, Margareta, 1947 (author)
- Gothenburg University,Göteborgs universitet,Krefting Research Centre
-
- Bossios, Apostolos, 1969 (author)
- Gothenburg University,Göteborgs universitet,Krefting Research Centre
-
- Eldh, Maria, 1980 (author)
- Gothenburg University,Göteborgs universitet,Krefting Research Centre
-
- Rådinger, Madeleine, 1967 (author)
- Gothenburg University,Göteborgs universitet,Krefting Research Centre
-
show less...
-
(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- English.
-
In: Journal of Allergy and Clinical Immunology. - : Elsevier BV. - 0091-6749. ; 133:5, s. 1429-1438
- Related links:
-
https://gup.ub.gu.se...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- BACKGROUND: Allergic asthma is a chronic disease of the conducting airways characterized by TH2 inflammation and tissue remodeling after exposure to inhaled allergens. Although the TH2 profile is undisputed, the underlying molecular mechanisms leading to this abnormal TH2 profile remain largely unclear. MicroRNAs (miRNAs) are short noncoding RNAs that are important regulators of gene expression in the immune system. However, the role of miRNAs, specifically miR-155, in the regulation of allergic airway inflammation is unexplored. OBJECTIVES: We sought to assess the contribution of miR-155 in a mouse model of allergic airway inflammation. METHODS: To investigate a role for miR-155 in the regulation of allergic inflammation in vivo, we used miR-155 knockout (KO) and wild-type (WT) mice sensitized and exposed to ovalbumin. RESULTS: miR-155 deficiency resulted in diminished eosinophilic inflammation and mucus hypersecretion in the lungs of allergen-sensitized and allergen-challenged mice compared with WT control animals. This was supported by a reduction in TH2 cell numbers and airway TH2 cytokine levels and complete abrogation of allergen-induced airway eotaxin-2/CCL24 and periostin levels in miR-155 KO mice. Intranasal instillation of eotaxin-2/CCL24 before allergen challenge partially restored airway eosinophilia in miR-155 KO mice, and adoptive transfer of CD4(+) T cells resulted in a similar degree of airway eosinophilia in miR-155 KO and WT mice. Furthermore, the transcription factor PU.1, a negative regulator of TH2 cytokine production, was upregulated in the airways of allergen-challenged miR-155 KO mice compared with WT mice. CONCLUSIONS: Our data provides evidence that miR-155 contributes to the regulation of allergic airway inflammation by modulating TH2 responses through the transcription factor PU.1.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Immunologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Immunology in the medical area (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine (hsv//eng)
Keyword
- MicroRNA
- T(H) cells
- allergy
- asthma
- eosinophils
- inflammation
- miR-155
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Malmhäll, Carina ...
-
Alawieh, Sahar, ...
-
Lu, You, 1982
-
Sjöstrand, Marga ...
-
Bossios, Apostol ...
-
Eldh, Maria, 198 ...
-
show more...
-
Rådinger, Madele ...
-
show less...
- About the subject
-
- MEDICAL AND HEALTH SCIENCES
-
MEDICAL AND HEAL ...
-
and Clinical Medicin ...
-
- MEDICAL AND HEALTH SCIENCES
-
MEDICAL AND HEAL ...
-
and Basic Medicine
-
and Immunology in th ...
-
- MEDICAL AND HEALTH SCIENCES
-
MEDICAL AND HEAL ...
-
and Basic Medicine
- Articles in the publication
-
Journal of Aller ...
- By the university
-
University of Gothenburg