BTG3, a member of the B-cell translocation gene/transducer of the ErbB2 antiproliferative protein family, which regulates cell cycle progression and differentiation in various cell types, has been reported to be downregulated in NSCLC specimens and cell lines, with the upregulation of hsa-miR-106a-5p [49]. The gene discussed is ERBB2; the disease is non-small cell lung carcinoma.