shRNA interference of BRD4 upregulates MICA expression in SKO-007(J3) cells. (A) MICA, MICB, and PVR/CD155 cell surface expression were analyzed by flow cytometry on pLKO-control (non-targeting) or pLKO-BRD4-lentivirus-infected SKO-007(J3) cells (72 h). The MFI of MICA, MICB, and PVR/CD155 was calculated based on three independent experiments and evaluated by paired Student t test (*P