Quantitative proteomic analysis of microdissected breast cancer tissues : comparison of label-free and SILAC-based quantification with shotgun, directed, and targeted MS approaches
Quantitative proteomics plays an important role in validation of breast-cancer-related biomarkers. In this study, we systematically compared the performance of label-free quantification (LFQ) and SILAC with shotgun and directed methods for quantifying breast-cancer-related markers in microdissected tissues. We show that LFQ leads to slightly higher coefficient of variation (CV) for protein quantif