USF1 and glioma: miR-101 epigenetically suppresses the expression of LIM domain only 3 (LMO3) by inhibiting the binding of Upstream stimulatory factor 1 (USF) and Myeloid Zinc Finger 1 (MZF1) to the LMO3 promoter and induces cell apoptosis in U251 glioma cells [155].