Proteomic analysis of cisplatin-induced cochlear damage: Methods and early changes in protein expression

Abstract To identify early changes in protein expression associated with cisplatin ototoxicity, we used two dimensional-difference gel electrophoresis (2D-DIGE) and matrix-assisted laser desorption-time-of-flight (MALDI-TOF) mass spectrometry to analyze proteins from P3 rat cochleae that were cultured for 3 h with or without 1 mM cisplatin. Replicate analysis of fluorescent images from six gels revealed significant ( p p p