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  • Title: Expression of coiled-coil protein 1, a novel gene downstream of FGF2, in the developing brain.
    Author: Pellicano F, Inglis-Broadgate SL, Pante G, Ansorge W, Iwata T.
    Journal: Gene Expr Patterns; 2006 Mar; 6(3):285-93. PubMed ID: 16378758.
    Abstract:
    Fibroblast growth factor 2 (FGF2) plays an important role in cortical development. However, the genes downstream of FGF2 that mediate its effect are largely unknown. We have performed a microarray screening of genes regulated by FGF2 using primary cortical neuron culture derived from embryonic day 14.5 (E14.5) mouse forebrains. In this study, we have analysed a previously uncharacterised gene encoding a 180-amino acid protein, hereby named 'coiled-coil protein 1 (ccp1)', that showed a modest up-regulation upon FGF2 stimulation. Northern blots and RT-PCR showed specific expression of ccp1 in multiple tissues including adult and embryonic brains. In situ hybridizations revealed that ccp1 was expressed in the cortical plate between Reelin and Tbr1-positive layers in the dorsal cortex at E15.5. Furthermore, the expression pattern of ccp1 at E13.5-E14.5 reflected some of the aspects of tangential migration of cortical progenitors during the early phase. We observed that the expressed ccp1 protein was localised to endo/lysosomal compartment in the cell body as well as to vesicles present in the processes of primary cortical neurons and oligodendrocyte cell line.
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