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Quantitative Proteomic Analysis Reveals Caffeine-Perturbed Proteomic Profiles in Normal Bladder Epithelial Cells
Muhammad Shahid1, Minhyung Kim1, Austin Yeon1
1Departments of Surgery and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
Proteomics
|September 21, 2018
Summary
Caffeine exposure alters bladder epithelial cell proteins and pathways, potentially influencing lower urinary tract symptoms (LUTS). This study reveals new insights into caffeine
Area of Science:
- Urology
- Cell Biology
- Proteomics
Background:
- Lower urinary tract symptoms (LUTS) are common in the elderly, diminishing quality of life.
- The impact of caffeine consumption on LUTS development and progression requires further elucidation.
- Understanding caffeine's cellular effects on the bladder is crucial for LUTS research.
Purpose of the Study:
- To investigate the effects of caffeine on normal bladder epithelial cells.
- To identify proteomic and biological pathway alterations induced by caffeine exposure.
- To explore potential mechanisms linking caffeine to bladder dysfunction.
Main Methods:
- Utilized hTert-immortalized normal bladder epithelial cells.
- Employed labeled liquid chromatography-tandem mass spectrometry (LC-MS/MS) for proteomic analysis.
- Conducted functional gene enrichment analysis to identify affected biological pathways.
Main Results:
- Identified 57 differentially expressed proteins in caffeine-treated cells versus controls.
- Observed 32 upregulated and 25 downregulated proteins following caffeine exposure.
- Functional analysis indicated caffeine impacts pathways such as 'muscle contraction' and 'chromatin assembly'.
Conclusions:
- Caffeine significantly alters the bladder epithelial cell proteome.
- Caffeine influences key biological pathways involved in cellular function and potentially bladder activity.
- These findings offer novel insights into caffeine's role in bladder dysfunction and LUTS.
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