Inhibition of JNK signaling in breast cancer cells and lung colonization in a xenograft mouse model Inhibition of JNK signaling in breast cancer cells.

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Inhibition of JNK signaling in breast cancer cells and lung colonization in a xenograft mouse model Inhibition of JNK signaling in breast cancer cells and lung colonization in a xenograft mouse model AWestern blot analysis of p‐c‐Jun and c‐Jun in MDA231‐LM2 and SUM159‐LM1 breast cancer cells treated with vehicle (DMSO) or 4 μM JNK inhibitor (JNKi). Tubulin was used as a loading control.BCell growth of MDA231‐LM2 cells treated with JNK inhibitor. Data points depict mean Cell Titer Blue absorbance values from triplicate experiments ± SD.CFACS analysis of apoptosis in JNKi‐treated MDA231‐LM2 cells by Annexin V and propidium iodide (PI) staining.DSchematic of experimental setup used to analyze the functional role of JNK signaling in breast cancer cells during lung colonization. Cancer cells were pre‐treated with JNKi 48 h before injection. Mice were not treated with JNKi.ELung colonization in NSG mice intravenously injected with MDA231‐LM2 cancer cells pre‐treated with 4 μM JNKi. Boxes depict median with upper and lower quartiles. Whiskers show maximum and minimum. Vehicle n = 9 mice; JNKi n = 10 mice. P‐value was determined by two‐tailed Mann–Whitney test.FRepresentative bioluminescence example of mice with lung metastases. Source data are available online for this figure. Jacob Insua‐Rodríguez et al. EMBO Mol Med. 2018;emmm.201809003 © as stated in the article, figure or figure legend