Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Choung, P.H. et al.

Synergistic activity of fibronectin and fibroblast growth factor receptors on neuronal adhesion and neurite extension through extracellular signal-regulated kinase pathway.

Fibroblast growth factor (FGF) is an important modulator of cell growth and differentiation of various cells including neuron. Cells need to adhere specifically to cellular and extracellular components of their environment to carry out diverse physiological functions. Here, we examined whether fibronectin (FN) and FGF can cooperate for neuronal adhesion and neurite outgrowth. Using recombinant FN peptide (FNIII9-10), we found that FNIII9-10-mediated adhesion promotes the effect of FGF1 on neurite outgrowth of PC12 cells, while FGF1 enhances the FNIII9-10-mediated neuronal adhesion of PC12 cells. This collaboration of FNIII9-10 and FGF1 was the result of the sustained activation of extracellular signal-regulated kinase (ERK)-type MAP kinase. Finally, the synergistic activity of FGF1 and FN was inhibited by PD98059, an MEK inhibitor. Taken together, these findings indicate that FN- mediated signaling can collaborate with FGFRs signaling for neurite outgrowth through selective activation of ERK-type MAP kinase in PC12 cells, and suggest that FN and FGF act in concert to regulate cell differentiation in the nervous system.[1]

References

Synergistic activity of fibronectin and fibroblast growth factor receptors on neuronal adhesion and neurite extension through extracellular signal-regulated kinase pathway. Choung, P.H., Seo, B.M., Chung, C.P., Yamada, K.M., Jang, J.H. Biochem. Biophys. Res. Commun. (2002) [Pubmed]

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