PTK2 and acute lymphoblastic leukemia: Human ALL cell strain Jurkat was cultured, and after knockdown or overexpression of FUT7, cell proliferation, apoptosis, adhesion and invasion were examined by MTT assay, flow cytometry, fibronectin adhesion assay and transwell, respectively; the protein expression level of integrin α5, integrin β1, p-FAK, and p-AKT was tested by western blotting.