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Quantitative Mass Spectrometric Profiling of Cancer-cell Proteomes Derived From Liquid and Solid Tumors
Published on: February 27, 2015
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Comparative proteome analysis across non-small cell lung cancer cell lines
Kathrin Grundner-Culemann1, J Nikolaj Dybowski2, Martin Klammer2
1Evotec (München) GmbH, Am Klopferspitz 19a, 82151 Martinsried, Germany; Cell Signaling Group, Department of Molecular Biology, Am Klopferspitz 19a, 82151 Martinsried, Germany.
Journal of Proteomics
|September 13, 2015
Summary
This study provides a comprehensive proteome map of 23 non-small cell lung cancer (NSCLC) cell lines. The data reveals proteome diversity and identifies proteins overexpressed in KRAS or EGFR mutant NSCLC, aiding oncogenesis research.
Area of Science:
- Oncology
- Proteomics
- Cancer Cell Biology
Background:
- Non-small cell lung cancer (NSCLC) cell lines are crucial models for cancer research.
- Comprehensive proteome expression data across diverse NSCLC cell lines is lacking.
- Such data is valuable for identifying novel oncogenesis targets and biomarkers.
Purpose of the Study:
- To generate and analyze in-depth proteome expression data for 23 NSCLC cell lines.
- To assess proteome diversity and identify molecular differences within the NSCLC cell line panel.
- To investigate potential correlations between proteome profiles and specific mutations (KRAS, EGFR).
Main Methods:
- Stable Isotope Labeling by Amino acids in Cell culture (SILAC) based quantitative proteomics.
- Proteome profiling across 23 distinct NSCLC cell lines with replicate quantifications.
- Hierarchical clustering and principal component analysis for proteome diversity assessment.
Main Results:
- Successfully identified and quantified approximately 4000 proteins per cell line.
- Demonstrated that overall proteome diversity in NSCLC cell lines is substantial.
- Observed partial segregation of KRAS or EGFR mutant cell lines, with specific proteins identified as overexpressed in these subsets.
Conclusions:
- The generated proteome dataset serves as a valuable resource for NSCLC pre-clinical research.
- Proteome diversity among NSCLC cell lines is a significant factor, potentially overshadowing effects of common oncoproteins like KRAS or EGFR.
- Specific proteomic signatures associated with KRAS and EGFR mutations were identified, offering insights into NSCLC heterogeneity.
