Transferrin receptor 2 and HFE regulate furin expression Slides: 8 Download presentation Transferrin receptor 2 and HFE regulate furin expression via mitogen-activated protein kinase/extracellular signalregulated kinase (MAPK/Erk) signaling. Implications for transferrin-dependent hepcidin regulation by Maura Poli, Sara Luscieti, Valentina Gandini, Federica Maccarinelli, Dario Finazzi, Laura Silvestri, Antonella Roetto, and Paolo Arosio haematol Volume 95(11): 1832 -1840 October 31, 2010 © 2010 by Ferrata Storti Foundation Effects of Tf. R 2 and HFE silencing. Maura Poli et al. Haematologica 2010; 95: 1832 -1840 © 2010 by Ferrata Storti Foundation Treatment of Hep. G 2 cells with BMP 2. Maura Poli et al. Haematologica 2010; 95: 1832 -1840 © 2010 by Ferrata Storti Foundation Effect of holotransferrin in cells expressing HFE and Tf. R 2. Maura Poli et al. Haematologica 2010; 95: 1832 -1840 © 2010 by Ferrata Storti Foundation Furin expression in Tf. R 2−/− mice. Maura Poli et al. Haematologica 2010; 95: 1832 -1840 © 2010 by Ferrata Storti Foundation Inhibition of furin activity. Maura Poli et al. Haematologica 2010; 95: 1832 -1840 © 2010 by Ferrata Storti Foundation Treatment with dorsomorphin and U 0126. Maura Poli et al. Haematologica 2010; 95: 1832 -1840 © 2010 by Ferrata Storti Foundation Proposed scheme of the signaling pathway by Tf. R 2 and HFE. Holotransferrin by binding to Tf. R 2 in a complex with HFE, induces Erk 1/2 phosphorylation. Maura Poli et al. Haematologica 2010; 95: 1832 -1840 © 2010 by Ferrata Storti Foundation