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자료유형
학술저널
저자정보
Kim, Hak-Jae (Department of Biology and Department of Life and Nanopharmaceutical Science, Kyunghee University) Han, Ah-Mi (Department of Biology and Department of Life and Nanopharmaceutical Science, Kyunghee University) Shim, Jae-Hwan (Department of Bioscience and Biotechnology, Hankuk University of Foreign Studies) Yoon, Hye-Hyun (Department of Culinary Science and Arts, Kyunghee University) Kwon, Hyock-Man (Department of Bioscience and Biotechnology, Hankuk University of Foreign Studies) Kimkwon, Yun-Hee (Department of Biology and Department of Life and Nanopharmaceutical Science, Kyunghee University)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제30권 제6호
발행연도
2007.1
수록면
750 - 754 (5page)

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HiB5 is a multipotent hippocampal stem cell line whose differentiation into cells of a neuronal phenotype is promoted by neurotrophic factors such as PDGF and brain-derived neurotrophicfactor (BDNF). We examined the potential role of Src homology 2 (SH2)-containing protein tyrosine phosphatase (Shp2) in this differentiation process. We found that Shp2 became tyrosine phosphoulated following PDGF treatment. Wild-type Shp2 enhanced the expression of neurofilament, synapsin I and PSD95 by PDGF and BDNF, whereas their expression was attenuated by the catalytically inactive mutants Shp2C/S and Shp2${\Delta}$P. Formation of dendritic spine-like structures increased with wild-type Shp2, but diminished with Shp2C/S and Shp2${\Delta}$P. PSD95, localized in the post-synaptic density region of dendritic spines, PDGFR${\beta}$ and TrkB were co-immunoprecipitated with Shp2 antibodies. These results suggest that Shp2 plays a positive role in mediating PDGF- and BDNF-activated signaling which promotes the formation of dendritic spines.

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