Journal ArticleDOI
Predominant TH2-like bronchoalveolar T-lymphocyte population in atopic asthma
Douglas S. Robinson,Qutayba Hamid,Sun Ying,Anne Tsicopoulos,J. Barkans,Andrew Bentley,Christopher Corrigan,Stephen R. Durham,A. B. Kay +8 more
TLDR
Atopic asthma is associated with activation in the bronchi of the interleukin-3, 4, and 5 and GM-CSF gene cluster, a pattern compatible with predominant activation of the TH2-like T-cell population.Abstract:
Background. In atopic asthma, activated T helper lymphocytes are present in bronchial-biopsy specimens and bronchoalveolar-lavage (BAL) fluid, and their production of cytokines may be important in the pathogenesis of this disorder. Different patterns of cytokine release are characteristic of certain subgroups of T helper cells, termed TH1 and TH2, the former mediating delayed-type hypersensitivity and the latter mediating IgE synthesis and eosinophilia. The pattern of cytokine production in atopic asthma is unknown. Methods. We assessed cells obtained by BAL in subjects with mild atopic asthma and in normal control subjects for the expression of messenger RNA (mRNA) for interleukin-2, 3, 4, and 5, granulocytemacrophage colony-stimulating factor (GM-CSF), and interferon gamma by in situ hybridization with 32P-labeled complementary RNA. Localization of mRNA to BAL T cells was assessed by simultaneous in situ hybridization and immunofluorescence and by in situ hybridization after immunomagnetic enrichment or...read more
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Interleukin-10 and the interleukin-10 receptor.
TL;DR: Findings that have advanced the understanding of IL-10 and its receptor are highlighted, as well as its in vivo function in health and disease.
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Functional diversity of helper T lymphocytes.
TL;DR: The existence of subsets of CD4+ helper T lymphocytes that differ in their cytokine secretion patterns and effector functions provides a framework for understanding the heterogeneity of normal and pathological immune responses.
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Interleukin-13: Central Mediator of Allergic Asthma
Marsha Wills-Karp,Jackie Luyimbazi,Xueying Xu,Brian Schofield,Tamlyn Neben,Christopher L. Karp,Debra D. Donaldson +6 more
TL;DR: In this paper, the type 2 cytokine IL-13, which shares a receptor component and signaling pathways with IL-4, was found to be necessary and sufficient for the expression of allergic asthma.
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Interleukin-13: Central mediator of allergic asthma
Marsha Wills-Karp,Jackie Luyimbazi,Xueying Xu,Brian Schofield,Tamlyn Neben,Christopher L. Karp,Debra D. Donaldson +6 more
TL;DR: In this article, the type 2 cytokine IL-13, which shares a receptor component and signaling pathways with IL-4, was found to be necessary and sufficient for the expression of allergic asthma.
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