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Regulatory T Cell-Related Gene Indicators in Pulmonary Hypertension

Front Pharmacol. 2022 May 31;13:908783. doi: 10.3389/fphar.2022.908783. PMID: 35712711; PMCID: PMC9197497.

Authors/Editors: Liu Y, Shi JZ, Jiang R, Liu SF, He YY, van der Vorst EPC, Weber C, Döring Y, Yan Y
Publication Date: 2022

Abstract 

Objective: Regulatory T cells (Tregs) are critical immune modulators to maintain immune homeostasis and limit pulmonary hypertension (PH). This study was aimed to identify Treg- related genes (TRGs) in PH.

Methods: The gene expression profile from lungs of PH patients was retrieved from the Gene Expression Omnibus (GEO) database. The abundance of Tregs was estimated by the xCell algorithm, the correlation of which with differentially expressed genes (DEGs) was performed. DEGs with a |Pearson correlation coefficient| >0.4 were identified as TRGs. Functional annotation and the protein–protein interaction (PPI) network were analyzed. A gene signature for 25 hub TRGs (TRGscore) was generated by a single sample scoring method to determine its accuracy to distinguish PH from control subjects. TRGs were validated in datasets of transcriptional profiling of PH cohorts and in lung tissues of experimental PH mice.

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