Journal: Cells
Article Title: Interleukin-6 Signaling in Triple Negative Breast Cancer Cells Elicits the Annexin A1/Formyl Peptide Receptor 1 Axis and Affects the Tumor Microenvironment
doi: 10.3390/cells11101705
Figure Lengend Snippet: TNBC cell lines express Annexin A1 (AnxA1). ( A ) The cropped Western blotting of AnxA1 expression in cytoplasm (C), nuclei (N), and supernatants (S) of MCF-10, MCF-7, MDA-MB-231, BT-549, MDA-MB-157 and MDA-MB-453 cells. Full length AnxA1 (37 kDa) and the cleaved AnxA1 form (33 kDa) were detected. β-Actin (42 kDa) and Laminin B2 (72 kDa) were used to check the proper cell fractionation and as loading controls of cytoplasmic and nuclear extracts, respectively. ( B ) ANXA1 mRNA relative level of MCF-10, MCF-7, MDA-MB-231, BT-549, MDA-MB-157 and MDA-MB-453 cells. ( C ) Expression analysis of AnxA1 receptors (FPR1 and FPR2) on the cell surface of MCF-10, MCF-7, MDA-MB-231, BT-549, MDA-MB-157 and MDA-MB-453 cells by flow cytometry (black peak with tracing line). As the negative control, the secondary antibody alone was used (solid gray peak). Three independent experiments were performed. * p < 0.05; ** p < 0.001.
Article Snippet: The isotype controls for FPR1 ((anti-mouse IgG2A-FITC control) 1:50; IC003F; R&D Systems) and FPR2 ((anti-mouse IgG2B-PE control) 1:50; IC0041P, R&D Systems) were also used.
Techniques: Western Blot, Expressing, Cell Fractionation, Flow Cytometry, Negative Control