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Proteomic Profiling of Macrophages by 2D Electrophoresis
Published on: November 4, 2014
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Data-Independent Acquisition-Based Quantitative Proteomics Analysis Reveals Dynamic Network Profiles during the
Lei Li1,2, Li Chen3, Xinya Lu2
1Department of Cardiovascular Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen, 518110, China.
Proteomics
|December 27, 2019
Summary
This study reveals key proteins and molecular pathways involved in macrophage inflammation. Ribosome proteins are crucial in regulating the response to lipopolysaccharide (LPS), impacting immune responses and metabolism.
Area of Science:
- Immunology
- Molecular Biology
- Proteomics
Background:
- The molecular mechanisms governing inflammatory responses remain incompletely understood.
- Macrophage activation by lipopolysaccharide (LPS) is a key model for studying inflammation.
Purpose of the Study:
- To characterize the proteome of macrophages stimulated with LPS.
- To identify molecular mechanisms and signaling networks involved in inflammation.
- To investigate the interplay between transcriptome and proteome during LPS-induced inflammation.
Main Methods:
- Proteomic analysis using data-independent acquisition (DIA) mass spectrometry.
- Bioinformatic analysis to identify protein modules, signaling pathways, and interaction networks.
- Conjoint analysis of transcriptomic and proteomic data.
Main Results:
- Identified 3597 proteins in LPS-treated macrophages.
- Discovered 87 differentially expressed proteins common across all inflammation stages.
- Found ribosome proteins play a significant role in macrophage response to LPS.
- Upregulated genes (mRNA and protein) are linked to inflammation and immunity; downregulated genes are linked to metabolism.
Conclusions:
- Provides a comprehensive understanding of molecular mechanisms in bacterial infection-induced inflammation.
- Highlights the critical role of ribosome proteins in macrophage inflammatory responses.
- Offers a valuable proteomic resource for future research on inflammation and immune responses.
