The dataset contains data from 9 samples hybridized on Illumina HumanHT-12 array. -patient's primary lymphoma cells obtained from leukemized blood (P7-PBMC) -non-malignant B-cells isolated from peripheral blood of 5 healthy donors (CTRL) -lymphoma cell line named UPF1G established from the patient's primary lymphoma cells before cytarabine-based therapy after 63 and 163 days of in vitro cultivation (UPF1G-D63, UPF1G-D163) -lymphoma cell line named UPF1H established from the pateint's primary lymphoma cells after cytarabine-based therapy after 85 and 185 days of in vitro cultivation (UPF1H-D85, UPF1H-D185) -cells established by xenotransplantation of UPF1G cell line isolated ex vivo from subcutaneously growing lymphoma (UPF1G-SC) -cells established by xenotransplantation of UPF1G cell line isolated ex vivo from malignant murine ascites (UPF1G-A) -cells established by xenotransplantation of UPF1H cell line isolated ex vivo from subcutaneously growing lymphoma (UPF1H-SC) Samples were sorted using CD19-microbeads (Miltenyi). For xenotransplantation, NOD.Cg-Prkdcscid Il2rgtm1Wjl/SzJ mice (referred to as NSG mice) were used. Overall design: Unsummarized data can be obtained from https://bitbucket.org/kulvait/klenermicroarraydata package using data(UPF1) command.