Mass spectrometry-based proteomic strategy for ecchymotic skin examination in forensic pathology.

ABSTRACT: Mass spectrometry (MS)-based proteomics has recently attracted the attention from forensic pathologists. This work is the first report of the development of a shotgun bottom-up proteomic approach based on rapid protein extraction and nano-liquid chromatography/high-resolution mass spectrometry applied to full-thickness human skin for the differential analysis of normal and ecchymotic tissues to identify new biomarkers for bruise characterization and dating. We identified around 2000 proteins from each pooled extract. The method showed excellent precision on independent replicates, with Pearson correlation coefficients always higher than 95%. Glycophorin A, a known biomarker of vital wounds from immunochemical studies, was identified only in ecchymotic tissues, as confirmed by Western blott

SUBMITTER: Toma L 

PROVIDER: S-EPMC10104867 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature