Fig. 8: The ubiquitin-like domain of FRMD3 was indispensable for its anti-tumor effects on BRCA.

a–d MTT assay (a), BrdU assay (b), plate colony formation assay (c), and soft agar colony formation assay (d) were performed to detect cells proliferation of T47D cells and MDA-MB-231 cells with overexpression of FRMD3, FRMD3-Ubdel, or vector control. e, f The wound-healing assay (e), transwell migration and transwell Matrigel invasion assays (f) were conducted to assess migration and invasion of T47D cells and MDA-MB-231 cells overexpressing FRMD3, FRMD3-Ubdel, or vector control. g Representative images of the 3D spheroid invasion assay in T47D cells and MDA-MB-231 cells overexpressing FRMD3, FRMD3-Ubdel, or vector control. h Cells adhesion analysis of T47D and MDA-MB-231 cells overexpressing FRMD3, FRMD3-Ubdel, or vector control. MTT assay was used to quantify the cells adhered to fibronectin-coated wells. N = 3 biologically independent replicates. The student’s t-test was used to estimate the significance of difference between two groups. Data were presented as means ± s.d. ns not significant; **P < 0.01; ***P < 0.001.