Flow cytometric analyses indicated that induction of epithelial-mesenchymal transition decreased trastuzumab binding, prior to overt loss of HER2 expression in trastuzumab-emtansine-resistant (TDM1R) cells. Kinome analyses of TDM1R cells indicated increased phosphorylation of ErbB1, ErbB4, and FGFR1.
[npj Breast Cancer]
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Akhand, S. S., Chen, H., Purdy, S. C., Liu, Z., Anderson, J. C., Willey, C. D., & Wendt, M. K. (2021). Fibroblast growth factor receptor facilitates recurrence of minimal residual disease following trastuzumab emtansine therapy. Npj Breast Cancer, 7(1), 1–11. https://doi.org/10.1038/s41523-020-00213-5 Cite
Using a CRISPR interference system in human ESCs, scientists describe a molecular characterization of the effects of downregulation of E-cadherin, one of the main initiation events of EMT, as a unique start signal.
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Scientists report that eukaryotic protein translation elongation factor 1α2 (EEF1A2) mediates the epithelial–mesenchymal transformation, to promote the metastasis of lung adenocarcinoma cells in vitro and in vivo.
[British Journal of Cancer]
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Jia, L., Ge, X., Du, C., Chen, L., Zhou, Y., Xiong, W., Xiang, J., Li, G., Xiao, G., Fang, L., & Li, Z. (2021). EEF1A2 interacts with HSP90AB1 to promote lung adenocarcinoma metastasis via enhancing TGF-β/SMAD signalling. British Journal of Cancer, 1–11. https://doi.org/10.1038/s41416-020-01250-4 Cite
Peritumoral fibroblasts and cancer-associated fibroblasts were extracted from gallbladder cancer (GBC) tissues. Thrombospondin expression in GBC was screened by RT-qPCR.
[Journal of Experimental & Clinical Cancer Research]
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Shi, Y., Sun, L., Zhang, R., Hu, Y., Wu, Y., Dong, X., Dong, D., Chen, C., Geng, Z., Li, E., & Fan, Y. (2021). Thrombospondin 4/integrin α2/HSF1 axis promotes proliferation and cancer stem-like traits of gallbladder cancer by enhancing reciprocal crosstalk between cancer-associated fibroblasts and tumor cells. Journal of Experimental & Clinical Cancer Research, 40(1), 14. https://doi.org/10.1186/s13046-020-01812-7 Cite
The authors found that the mesenteric estrogen-dependent adipogenesis gene (MEDAG) was highly expressed in breast cancer (BC) samples and that a high MEDAG expression was correlated with clinicopathological characteristics and poor survival in BC patients.
[Cell Death & Disease]
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To investigate whether combined treatment with Enzalutamide (ENZ) and 3,3′-diindolylmethane (DIM) could overcome ENZ resistance by regulating Wnt signaling to inhibit androgen receptor signaling and EMT in ENZ-resistant prostate cancer cells, 22Rv1 cells were cultured in normal medium and treated with ENZ, DIM, and DIM with ENZ.
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Tsao, C.-W., Li, J.-S., Lin, Y.-W., Wu, S.-T., Cha, T.-L., & Liu, C.-Y. (2021). Regulation of carcinogenesis and mediation through Wnt/β-catenin signaling by 3,3′-diindolylmethane in an enzalutamide-resistant prostate cancer cell line. Scientific Reports, 11(1), 1239. https://doi.org/10.1038/s41598-020-80519-3 Cite
Investigators found that high expression of desmoglein2, a component of desmosome-mediated intercellular adhesion complexes, promoted tumor growth, increased the prevalence of circulating tumor cell clusters, and facilitated distant organ colonization.
[Proceedings of the National Academy of Sciences of the United States of America]
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Chang, P.-H., Chen, M.-C., Tsai, Y.-P., Tan, G. Y. T., Hsu, P.-H., Jeng, Y.-M., Tsai, Y.-F., Yang, M.-H., & Hwang-Verslues, W. W. (2021). Interplay between desmoglein2 and hypoxia controls metastasis in breast cancer. Proceedings of the National Academy of Sciences, 118(3). https://doi.org/10.1073/pnas.2014408118 Cite
Human umbilical cord-derived mesenchymal stem cells were successfully cultured and identified, and exosomes were isolated from the supernatant by ultracentrifugation.
[Stem Cell Research & Therapy]
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Li, D., Zhang, J., Liu, Z., Gong, Y., & Zheng, Z. (2021). Human umbilical cord mesenchymal stem cell-derived exosomal miR-27b attenuates subretinal fibrosis via suppressing epithelial–mesenchymal transition by targeting HOXC6. Stem Cell Research & Therapy, 12(1), 24. https://doi.org/10.1186/s13287-020-02064-0 Cite
Scientists demonstrated that ZIP4 activated ZEB1 and YAP1 through distinct mechanisms. The ZIP4-miR-373-LATS2-ZEB1/YAP1-ITGA3 signaling axis has a significant impact on pancreatic cancer metastasis and EMT plasticity.
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Liu, M., Zhang, Y., Yang, J., Zhan, H., Zhou, Z., Jiang, Y., Shi, X., Fan, X., Zhang, J., Luo, W., Fung, K.-M. A., Xu, C., Bronze, M. S., Houchen, C. W., & Li, M. (2021). Zinc Dependent Regulation of ZEB1 and YAP1 Co-activation Promotes EMT Plasticity and Metastasis in Pancreatic Cancer. Gastroenterology, 0(0). https://doi.org/10.1053/j.gastro.2020.12.077 Cite
Investigators explored the potential role of PDLIM2 in the development and epithelial-mesenchymal transition of hepatocellular carcinoma via a possible modulation of β-catenin.
[Cancer Gene Therapy]
Researchers report that under hypoxic conditions, alternative splicing of MBD2 was suppressed, favoring the production of MBD2a which facilitated breast cancer metastasis.
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Liu, Z., Sun, L., Cai, Y., Shen, S., Zhang, T., Wang, N., Wu, G., Ma, W., Li, S.-T., Suo, C., Hao, Y., Jia, W.-D., Semenza, G. L., Gao, P., & Zhang, H. (2021). Hypoxia-induced suppression of alternative splicing of MBD2 promotes breast cancer metastasis via activation of FZD1. Cancer Research. https://doi.org/10.1158/0008-5472.CAN-20-2876 Cite