Upregulation of interleukin-19 in severe asthma: a potential saliva biomarker for asthma severity

Author:

Saheb Sharif-Askari Fatemeh,Saheb Sharif-Askari Narjes,Goel Swati,Mahboub Bassam,Ansari Abdul Wahid,Temsah Mohamad-HaniORCID,Zakri Adel M.,Ratemi Elaref,Hamoudi RifatORCID,Hamid Qutayba,Halwani RabihORCID

Abstract

Interleukin (IL)-19, a designated IL-20 subfamily cytokine, has been implicated in inflammatory disorders including rheumatoid arthritis, psoriasis and, lately, asthma. Here, through the analysis of transcriptomic datasets of lung tissue of large asthma cohorts, we report that IL-19 expression is upregulated in asthma and correlates with disease severity. The gene expression of IL-19 was significantly higher in lung tissue from patients with severe and mild/moderate asthma compared to healthy controls. IL-19 protein level, however, was significantly higher in the blood and saliva of patients with severe asthma compared to mild/moderate subgroups as measured by ELISA assay. IL-19 protein level was not affected by corticosteroid treatment in plasma. Our data provide insights into the potential use of IL-19 as a saliva marker for asthma severity and a potential therapeutic target.

Funder

issue Injury and Repair Group (TIR Group) operational grant

COVID-19 research grants

seed grant

Publisher

European Respiratory Society (ERS)

Subject

Pulmonary and Respiratory Medicine

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