The purpose of this project is to explore the changes in signaling pathways after CAPSL knockdown and overexpression, and to identify potential downstream target genes of CAPSL along with the signaling pathways they are involved in. Ultimately elucidating the molecular mechanisms underlying CAPSL pathogenesis. HRECs were transfected with ctrl shRNA, CAPSL knockdown shRNA and LentiOE CAPSL. The cells were then collected at least 72h after transfection, and samples were then usd for proteomic analysis. After cell collection, a series of cutting-edge technologies, including protein extraction, enzyme digestion, liquid chromatography-tandem mass spectrometry, and bioinformatics analysis, were employed to investigate the quantitative proteome of the samples.