Dataset Information

Phospho-proteomic analysis of IL-13 treated human airway epithelial cell line (A549)

ABSTRACT: Allergic asthma is a chronic inflammatory airway disease driven by the cytokine interleukin-13 (IL-13). Although IL-13 signals through the canonical JAK1/TYK2/STAT6 pathway, our understanding of the totality of IL-13-induced signaling intermediates is incomplete. To address this, we performed an unbiased phospho-proteomic analysis of IL-13-stimulated A549 human airway epithelial cells. IL-13 stimulation led to differential phosphorylation at 145 unique serine/threonine residues across 97 proteins involved in diverse cellular processes. These processes included RNA splicing, cytoskeletal remodeling, GTPase activity, and focal adhesion complex formation. Network analysis identified SRC, a non-receptor tyrosine kinase, as a potential upstream regulator of IL-13-induced changes in phosphorylation. Kinetic molecular approaches confirmed that SRC is rapidly activated following IL-13 stimulation, prior to activation of the canonical IL-13 signaling intermediate STAT6 in both human and mouse lung fibroblasts. Pharmacological inhibition of SRC reduced IL-13–induced STAT6 phosphorylation and downstream gene expression in vitro. In vivo, SRC antagonism attenuated IL-13–induced airway hyperresponsiveness (AHR) without significantly affecting inflammatory cell infiltration or gene expression in bronchoalveolar lavage fluid. These findings identify SRC as a novel and selective mediator of IL-13–driven airway responses and suggest that targeting SRC may offer therapeutic benefit in allergic asthma.

INSTRUMENT(S):

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Lung, Epithelial Cell Of Lung, Epithelial Cell

DISEASE(S): Asthma

SUBMITTER: Archana Shankar

LAB HEAD: Ian P. Lewkowich, PhD

PROVIDER: PXD066489 | Pride | 2025-12-05

REPOSITORIES: Pride

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Dataset's files

Source:

			Action	DRS
	OE_20210812_05_Lewkowich_TMT_set1_15min.pdResult	Other
	OE_20210825_19_1.raw	Raw
	OE_20210825_19_Lewowich_TMTset_15min.mzML	Mzml
	checksum.txt	Txt
	phosphoproteomics_sdrf_final.tsv	Tabular

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Publications

Phospho-Proteomic Analysis of Interleukin-13 Signaling in Airway Cells Reveals SRC Family Kinase Involvement in Interleukin-13-Induced Inflammatory Responses.

Shankar Archana A McAlees Jaclyn W JW Wyder Michael A MA Hargis Julie M JM Ediga Harshavardhana Haresamudram HH Cannata Angela A Latayan Jana J Greis Kenneth D KD Madala Satish K SK Lewkowich Ian P IP

International archives of allergy and immunology 20251110

<h4>Introduction</h4>Allergic asthma is a chronic inflammatory airway disease driven by the cytokine interleukin-13 (IL-13). Although IL-13 signals through the canonical JAK1/TYK2/STAT6 pathway, our understanding of the totality of IL-13-induced signaling intermediates is incomplete.<h4>Methods</h4>To address this, we performed a phospho-proteomic analysis of IL-13-stimulated A549 human airway epithelial cells. IL-13 stimulation led to differential phosphorylation at 145 unique serine/threonine ...[more]

PMID: 41212792

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Project description:Selective stimulation of IL-4 receptor on smooth muscle induces airway hyper-responsiveness in mice. Abstract: Production of the cytokines IL-4 and IL-13 is increased in both human asthma and mouse asthma models and Stat6 activation by the common IL-4/IL-13R drives most mouse model pathophysiology, including airway hyperresponsiveness (AHR). However, the precise cellular mechanisms through which IL-4Rα induces AHR remain unclear. Overzealous bronchial smooth muscle constriction is thought to underlie AHR in human asthma, but the smooth muscle contribution to AHR has never been directly assessed. Furthermore, differences in mouse vs. human airway anatomy and observations that selective IL-13 stimulation of Stat6 in airway epithelium induces murine AHR raise questions about the importance of direct IL-4R effects on smooth muscle in murine asthma models and relevance of these models to human asthma. Using transgenic mice in which smooth muscle is the only cell type that expresses or fails to express IL-4Rα, we demonstrate that direct smooth muscle activation by IL-4, IL-13, or allergen is sufficient, but not necessary, to induce AHR and show that 5 genes known to promote smooth muscle migration, proliferation and contractility are activated by IL-13 in smooth muscle in vivo. These observations demonstrate that IL-4Rα promotes AHR through multiple mechanisms and provide a model for testing smooth muscle-directed asthma therapeutics. For the microarray aspect of of the study, there were three groups of mice: 1. IL4R gene knockout (KO) mice 2. WT mice 3. IL4R KO mice that were also transgenic for a gene construct that expressed IL4R under the control of the smooth muscle-specific promoter from the SMP8 gene All mice were subjected to intratracheal IL13 exposure for 7 days, and whole lung RNA was prepared for microarray analysis 24 hours after the last instillation. Per treatment and genotype: Two RNA pools were made from four mice each. These were labeled and hybridized to make a total of 6 microarrays. RNA was labeled with the standard Affymetrix 3' labeling protocol to make cDNA that was hybridized to Mouse MOE 430 plus 2.0 GeneChips. Gene transcripts were identified that differed in their relative expression as a function of IL4R expression on the smooth muscle cells.