Daiki Arai

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The growth hormone (GH)-insulin-like growth factor 1 (IGF1) axis mediates postnatal body growth. The GH receptor has been regarded as the sole receptor that mediates the Janus kinase 2 (JAK2)/signal transducers and activators of the transcription 5B (STAT5B) signal toward IGF1 synthesis. Here, we report a signaling pathway that regulates postnatal body(More)
In mouse cerebral corticogenesis, neurons are generated from radial glial cells (RGCs) or from their immediate progeny, intermediate neuronal precursors (INPs). The balance between self-renewal of these neuronal precursors and specification of cell fate is critical for proper cortical development, but the signaling mechanisms that regulate this progression(More)
In this paper, another version of the star cube called the generalized-star cube, GSC(n, k, m), is presented as a three level interconnection topology. GSC(n, k, m) is a product graph of the (n, k)-star graph and the m-dimensional hypercube (m-cube). It can be constructed in one of two ways: to replace each node in an m-cube with an (n, k)-star graph, or to(More)
We previously reported that EphA4, a member of the Eph family of receptor tyrosine kinases, is an important modulator of growth hormone (GH) signaling, leading to augmented synthesis of insulin-like growth factor 1 (IGF1) for postnatal body growth. In the present study, we report the molecular interactions of EphA4, GH receptor (GHR), Janus kinase 2 (JAK2),(More)
Ephs and FGFRs belong to a superfamily of receptor tyrosine kinases, playing important roles in stem cell biology. We previously reported that EphA4 and FGFR form a heterodimer following stimulation with ligands, trans-activating each other and signaling through a docking protein, FRS2α, that binds to both receptors. Here, we investigated whether the(More)
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