Article ; Online: Interleukin-32 in Pathogenesis of Atopic Diseases: Proinflammatory or Anti-Inflammatory Role?
2021 Volume 41, Issue 7, Page(s) 235–243
Abstract: Atopic diseases, such as atopic dermatitis (AD), allergic asthma (AA), and allergic rhinitis (AR), are increasingly becoming a worldwide issue. This atopic triad originates at an early age and on a multifactorial basis, causing significant discomfort to ... ...
| Abstract | Atopic diseases, such as atopic dermatitis (AD), allergic asthma (AA), and allergic rhinitis (AR), are increasingly becoming a worldwide issue. This atopic triad originates at an early age and on a multifactorial basis, causing significant discomfort to susceptible individuals. The global case number is now reaching new highs, so exploring immune system regulation and its components is becoming critical. One cytokine, interleukin-32 (IL-32), is involved in inflammation and regulation of the immune system. It has nine isoforms that show varying degrees of expression, both intracellularly and extracellularly. IL-32 is secreted by immune cells, such as monocytes, macrophages, natural killer cells, and T cells, and by nonimmune cells, including fibroblasts, keratinocytes, and endothelial cells. Its production is regulated and augmented by microorganisms, mitogens, and other cytokines. Early studies demonstrated that IL-32 was an immune regulator that functioned to protect against inflammatory diseases, including AD, AA, and AR, and proposed a proinflammatory role for IL-32 in immune regulation and symptom exacerbation. However, several later reports suggested that IL-32 is downregulated in inflammatory diseases and exerts an anti-inflammatory effect. This review article focuses on recent findings regarding the detrimental and protective roles of IL-32 in development and management of inflammatory diseases. The exact role of IL-32 in AD, AA, and AR still remains to be elucidated. Future research should explore new avenues of IL-32 functionality in human inflammatory diseases. |
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| MeSH term(s) | Age of Onset ; Asthma/genetics ; Asthma/immunology ; Cytokines/classification ; Cytokines/genetics ; Cytokines/immunology ; Dermatitis, Atopic/genetics ; Dermatitis, Atopic/immunology ; Endothelial Cells/immunology ; Endothelial Cells/pathology ; Fibroblasts/immunology ; Fibroblasts/pathology ; Gene Expression Regulation ; Humans ; Interleukins/genetics ; Interleukins/immunology ; Keratinocytes/immunology ; Keratinocytes/pathology ; Killer Cells, Natural/immunology ; Killer Cells, Natural/pathology ; Macrophages/immunology ; Macrophages/pathology ; Monocytes/immunology ; Monocytes/pathology ; Protein Isoforms/genetics ; Protein Isoforms/immunology ; Rhinitis, Allergic/genetics ; Rhinitis, Allergic/immunology ; Rhinitis, Allergic/pathology ; Signal Transduction ; T-Lymphocytes/immunology ; T-Lymphocytes/pathology |
| Chemical Substances | Cytokines ; IL32 protein, human ; Interleukins ; Protein Isoforms |
| Language | English |
| Publishing date | 2021-07-19 |
| Publishing country | United States |
| Document type | Journal Article ; Research Support, Non-U.S. Gov't |
| ZDB-ID | 1226675-9 |
| ISSN | 1557-7465 ; 1079-9907 |
| ISSN (online) | 1557-7465 |
| ISSN | 1079-9907 |
| DOI | 10.1089/jir.2020.0230 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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