Journal: Cell reports
Article Title: MAL2 mediates the formation of stable HER2 signaling complexes within lipid raft-rich membrane protrusions in breast cancer cells
doi: 10.1016/j.celrep.2021.110160
Figure Lengend Snippet: (A) Immunofluorescence staining for HER2 and cholera toxin B in MCF10A and SKBR3 cells. Scale bars represent 10 μm. (B) Lipid raft areas on the cell surface, with quantification in the bar graph on the right. (C) Flotillin1 (FLOT1), MAL, and MAL2 mRNA expression in different breast cancer cell lines as assessed by quantitative PCR (n = 3). (D) RNA-seq analysis of FLOT1 and MAL2 expression in normal breast tissue (n = 112) and HER2-positive breast tumors (n = 160) represented in The Cancer Genome Atlas database. (E) Uniform Manifold Approximation and Projection (UMAP) plots of breast cancer single-cell RNA-seq data (GEO: GSE75688, left) and co-expression pattern of HER2, FLOT1, MAL, and MAL2 in cells from cluster 2. (F) Distribution of MAL, FLOT1, MAL2, and HER2 expression level for each cell in cluster 2. (G) MAL2 ATAC-seq peak clusters in SKBR3, MCF10A, MCF7, and MDA-MB-231 cell lines. In the bar graphs, the bars represent the mean ± SEM. **p <0.01, ***p <0.001, ****p <0.0001. These results are representative of three independent experiments.
Article Snippet: Constructs encoding flag-flotillin1 (RC200231) and flag-MAL2 (RC203862) are commercially available from OriGene (Rockville, MD).
Techniques: Immunofluorescence, Staining, Expressing, Real-time Polymerase Chain Reaction, RNA Sequencing