NR2F1 and lymphangioma: To further verify whether the effect of NR2F1 high expression on the dormancy of SACC-83 and SACC-LM was unique, we used siRNA-NR2F1 in NR2F1high SACC cells and observed that the down-regulation of NR2F1 not only restored the proliferation and the cell number in G2/M phases of SACC-83 and SACC-LM cells, but also decreased the migration and invasion abilities of SACC-83 and SACC-LM cells (Fig. 4A-D).