We examined genes that co-expressed with GLUT1 and JUN in breast cancer in Adorno cell line dataset [30] (Additional file 2: Fig. S2 a, Additional file 2: Fig. S2 b), and found that the transcription level of GLUT1 and JUN were closely corelated and might contribute to certain signaling pathways. This evidence concerns the gene SLC2A1 and breast cancer.