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Screening Assays to Characterize Novel Endothelial Regulators Involved in the Inflammatory Response
Published on: September 15, 2017
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Transcriptomic analysis of human pulmonary microvascular endothelial cells treated with LPS
Kaili Li1, Zuotian Huang2, Chang Liu3
1Department of Emergency, The First Affiliated Hospital of Chongqing Medical University, 400016 Chongqing, China.
Cellular Signalling
|August 26, 2023
Summary
This study reveals TFDP1 as a key gene in acute respiratory distress syndrome (ARDS). Reduced TFDP1 expression exacerbates ARDS, while its restoration inhibits inflammation and promotes cell survival.
Area of Science:
- Molecular Biology
- Genomics
- Pathophysiology
Background:
- Acute respiratory distress syndrome (ARDS) is a severe condition with high mortality.
- Understanding ARDS mechanisms is crucial for developing effective treatments.
- Transcriptomics offers a powerful approach to identify ARDS-related genes and pathways.
Purpose of the Study:
- To investigate gene expression profiles in ARDS using RNA-Seq.
- To identify key genes and signaling pathways involved in ARDS pathogenesis.
- To explore the role of TFDP1 in ARDS development and progression.
Main Methods:
- RNA-Sequencing (RNA-Seq) on LPS-induced human pulmonary microvascular endothelial cells (PMVECs).
- Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis.
- Protein-protein interaction (PPI) network construction and analysis.
- Validation of key gene expression in cellular and animal models of ARDS.
Main Results:
- Identified 2300 up-regulated and 1696 down-regulated genes in response to LPS.
- TFDP1 identified as a cell cycle-dependent gene with reduced expression in ARDS models.
- TFDP1 demonstrated to inhibit inflammation and apoptosis, and promote proliferation.
- Decreased expression of E2F1, Rb, CDK1, and activated MAPK signaling pathway observed in ARDS models.
- SREBF1 implicated in cell cycle arrest by inhibiting CDK1.
Conclusions:
- Transcriptomics combined with basic research provides insights into ARDS mechanisms.
- TFDP1 plays a protective role in ARDS by modulating inflammation, apoptosis, and proliferation.
- Dysregulation of cell cycle genes and MAPK signaling are critical in ARDS.
- Findings offer a basis for developing novel therapeutic strategies for ARDS.
