Updated project metadata. In this study, the proteomic tissue proteins were analyzed using LC-MS. Fifteen lymphocyte-rich HCC formalin fixed and paraffin embedded (FFPE) tissues, 15 adjacent normal FFPE tissues, and 15 HCC FFPE tissues were analyzed. More than 4,000 liver tissue proteins have been identified by high-sensitivity nanoflow liquid chromatography-tandem mass spectrometry (LC-MS/MS).