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The SH2 domain is crucial for function of Fyn in neuronal migration and cortical lamination
( Xi Lu ),( Xin De Hu ),( Ling Zhen Song ),( Lei An ),( Ming Hui Duan ),( Shu Lin Chen ),( Shan Ting Zhao ) 생화학분자생물학회 2015 BMB Reports Vol.48 No.2
Neurons in the developing brain form the cortical plate (CP) in an inside-out manner, in which the late-born neurons are located more superficially than the early-born neurons. Fyn, a member of the Src family kinases, plays an important role in neuronal migration by binding to many substrates. However, the role of the Src-homology 2 (SH2) domain in function of Fyn in neuronal migration remains poorly understood. Here, we demonstrate that the SH2 domain is essential for the action of Fyn in neuronal migration and cortical lamination. A point mutation in the Fyn SH2 domain (FynR176A) impaired neuronal migration and their final location in the cerebral cortex, by inducing neuronal aggregation and branching. Thus, we provide the first evidence of the Fyn SH2 domain contributing to neuronal migration and neuronal morphogenesis. [BMB Reports 2015; 48(2): 97-102]
Cui Xi-Hua,Hosakatte Niranjana Murthy,Zhang Ji-De,Song Hang-Lin,Jiang Yin-Ji,Qi Wen-Wen,Li Yong Yi,백기엽,박소영 한국식물생명공학회 2020 Plant biotechnology reports Vol.14 No.3
In this study, we aimed to verify the effect of nutritional factors on the accretion of secondary metabolites in the adventitious root (AR) cultures of Malaysian ginseng (Eurycoma longifolia Jack) grown in small-scale bioreactors. AR were induced from leaf explants and cultured in different types of media including Murashige and Skoog (MS) medium, Driver Kuniyuki Walnut (DKW) medium, Gamborg’s B5 medium, Woody Plant Medium (WPM), and ¾ MS medium. Among these media, the MS and Gamborg’s B5 media induced lateral root development from initial inoculum, which accounted for the increase in AR biomass accretion. By contrast, the DKW and WPM media did not induce lateral root formation from the cultured explants. The ¾ MS medium was optimal for the growth of AR and accretion of secondary metabolites, after 7 weeks of culture, the biomass of AR increased by 8.6-fold in ¾ MS medium, and the total phenolic and flavonoid contents reached 5.23 and 2 mg g−1 of tissue dry weight, respectively. Analysis of mineral elements in the spent medium revealed that ¾ MS medium was most suitable for nutrient supply to developing AR. LC–MS analysis showed the accretion of eurycomanone, a therapeutically useful metabolite, in the AR of Malaysian ginseng.
Li, Hong-Chang,Rong, Chao-He,Song, De-Xi The Korean Society for Railway 2008 International Journal of Railway Vol.1 No.2
The concept of lean production originated and was applied mainly to manufacture industries Even proven successful with such companies as Toyota, lean production has to be combined railway transportation production in order to bring its function into full play. The paper analyzes for applicability of lean production in railway transportation production organization, puts forward implementation methods such as transportation resource integration, station-zone organization, dispatch command optimization, railway performance evaluation index system, etc., and makes an exemplification study of lean production of Urumqi Railway Bureau in China, which testifies the applicability and efficiency of railway lean production.