CSNK1G1 and neoplasm: A circRNA expression profile (GEO accession: GSE101123) provided several differently expressed circRNAs in TNBC tissues (N = 8) compared to non-tumor breast tissues (N = 3), and the results from the heat map showed that has_circRNA_101555 (circ-CSNK1G1) was notably upregulated in TNBC tissues (Fig. 1A).