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Intracellular transport is essential for cytoplasm organization, but mechanisms regulating transport are mostly unknown. In Xenopus melanophores, melanosome transport is regulated by cAMP-dependent protein kinase A (PKA) [1]. Melanosome aggregation is triggered by melatonin, whereas dispersion is induced by melanocyte-stimulating hormone (MSH) [2]. The action of hormones is mediated by cAMP: High...
The role of fibroblast growth factors (FGFs) in neural induction is controversial [1,2]. Although FGF signalling has been implicated in early neural induction [3–5], a late role for FGFs in neural development is not well established. Indeed, it is thought that FGFs induce a precursor cell fate but are not able to induce neuronal differentiation or late neural markers [6–8]. It is also not known whether...
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