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| 1 | Nature:通过控制血管生长来开发治疗癌症等多种疾病的新型疗法显示文摘最近,一项刊登在国际杂志Nature上的研究报告中,来自耶鲁大学的研究人员通过研究揭示了如何通过控制血管发育来帮助开发治疗心血管疾病以及癌症的新型疗法。 | Yu, Pengchun Wilhelm, Kerstin Dubrac, Alexandre Tung, Joe K. Alves, Tiago C. Fang, Jennifer S. Xie, Yi Zhu, Jie Chen, Zehua De Smet, Frederik Zhang, Jiasheng Jin, Suk-Won Sun, Lele Sun, Hongye Kibbey, Richard G. Hirschi, Karen K. Hay, Nissim Carmeliet, Peter Chittenden, Thomas W. Eichmann, Anne Potente, Michael Simons, Michael | 2017 | 现代生物医学进展2017，17，22： | 9 |
| 2 | Microtubule-bundling protein Spef1 enables mammalian ciliary central apparatus formation显示文摘Cilia are cellular protrusions containing nine microtubule(MT)doublets and function to propel cell movement or extracellular liquid flow through beating or sense environmental stimuli through signal transductions.Cilia require the central pair(CP)apparatus,consisting of two CP MTs covered with projections of CP proteins,for planar strokes.How the CP MTs of such‘9+2’cilia are constructed,however,remains unknown.Here we identify Spef1,an evolutionarily conserved microtubule-bundling protein,as a core CP MT regulator in mammalian cilia.Spef1 was selectively expressed in mammalian cells with 9+2 cilia and specifically localized along the CP.Its depletion in multiciliated mouse ependymal cells by RNAi completely abolished the CP MTs and markedly attenuated ciliary localizations of CP proteins such as Hydin and Spag6,resulting in rotational beat of the ependymal cilia.Spef1,which binds to MTs through its N-terminal calponin.homologous domain,formed homodimers through its C-terminal coiled coil region to bundle and stabilize MTs.Disruption of either the MT-binding or the dimerization activity abolished the ability of exogenous Spef1 to restore the structure and functions of the CP apparatus.We propose that Spefl bundles and stabilizes central MTs to enable the assembly and functions of the CP apparatus. | Jianqun Zheng Hao Liu Lei Zhu Yawen Chen Huijie Zhao Wei Zhang Fan Li Lele Xie Xiumin Yan Xueliang Zhu | 2019 | Journal of Molecular Cell Biology2019，11，1： | 1 |
| 3 | Developing new Mg alloy as potential bone repair material via constructing weak anode nano-lamellar structure显示文摘The mechanics-corrosion and strength-ductility tradeoffs of magnesium(Mg)alloys have limited their applications in fields such as orthopedic implants.Herein,a fine-grain structure consisting of weak anodic nano-lamellar solute-enriched stacking faults(SESFs)with the average thickness of 8 nm and spacing of 16 nm is constructed in an as-extruded Mg96.9Y1.2Ho1.2Zn0.6Zr0.1(at.%)alloy,obtaining a high yield strength(YS)of 370 MPa,an excellent elongation(EL)of 17%,and a low corrosion rate of 0.30 mm y−1(close to that of high-pure Mg)in a uniform corrosion mode.Through scanning Kelvin probe force microscopy(SKPFM),one-dimensional nanostructured SESFs are identified as the weak anode(∼24 mV)for the first time.The excellent corrosion resistance is mainly related to the weak anodic nature of SESFs and their nano-lamellar structure,leading to the more uniform potential distribution to weaken galvanic corrosion and the release of abundant Y^(3+)/Ho^(3+)from SESFs to form a more protective film with an outer Ca_(10)(PO_(4))_(6)(OH)_(2)/Y_(2)O_(3)/Ho_(2)O_(3) layer(thickness percentage of this layer:72.45%).For comparison,the as-cast alloy containing block 18R long period stacking ordered(LPSO)phase and the heat-treated alloy with fine lamellar 18R-LPSO phase(thickness:80 nm,spacing:120 nm)are also studied,and the characteristics of SESFs and 18R-LPSO phase,such as the weak anode nature of the former and the cathode nature of the latter(37-90 mV),are distinguished under the same alloy composition.Ultimately,we put forward the idea of designing Mg alloys with high mechanical and anti-corrosion properties by constructing'homogeneous potential strengthening microstructure',such as the weak anode nano-lamellar SESFs structure. | Jinshu Xie Lele Wang Jinghuai Zhang Liwei Lu Zhi Zhang Yuying He Ruizhi Wu | 2023 | Journal of Magnesium and Alloys2023，11，1： | 0 |
| 4 | Dietary ribose supplementation improves flesh quality through purine metabolism in gibel carp(Carassius auratus gibelio)显示文摘Since the aquaculture industry is currently observing a deterioration in the flesh quality of farmed fish,the use of nutrients as additives to improve the flesh quality of farmed fish species is a viable strategy.The aim of this study was to investigate the effect of dietary D-ribose(RI)on the nutritional value,texture and flavour of gibel carp(Carassius auratus gibelio).Four diets were formulated containing exogenous RI at 4 gradient levels:0(Control),0.15%(0.15RI),0.30%(0.30RI)and 0.45%(0.45RI).A total of 240 fish(150±0.31 g)were randomly distributed into 12 fibreglass tanks(150 L per tank).Triplicate tanks were randomly assigned to each diet.The feeding trial was carried out in an indoor recirculating aquaculture system for 60 d.After the feeding trial,the muscle and liver of gibel carp were analysed.The results showed that RI supplementation did not result in any negative impact on the growth performance and 0.30RI supplementation significantly increased the whole-body protein content compared to the control group.The contents of collagen and glycogen in muscle were enhanced by RI supplementation.The alterations in the flesh indicated that RI supplementation improved the texture of the flesh in terms of its water-holding capacity and hardness,therefore improving the taste.Dietary RI facilitated the deposition of amino acids and fatty acids in the muscle that contributed to the meaty taste and nutritional value.Furthermore,a combination of metabolomics and expression of key genes in liver and muscle revealed that 0.30RI activated the purine metabolism pathways by supplementing the substrate for nucleotide synthesis and thereby promoting the deposition of flavour substance in flesh.This study offers a new approach for providing healthy,nutritious and flavourful aquatic products. | Wanjie Cai Lele Fu Cui Liu Linyue He Haokun Liu Dong Han Xiaoming Zhu Yunxia Yang Junyan Jin Shouqi Xie | 2023 | Animal Nutrition2023，，2： | 0 |
| 5 | Understanding the Roles of Nudel/Lis1/Dynein Pathway in Cell Motility显示文摘Under the support of multiple grants by NSFC, including General Program,Key Program,National Science Fund for Distinguished Young Scholars,and Fund for Creative Research Groups,the research group explored how the Nudel/Lis1/dynein | Xie Lele Zhu Xueliang | 2007 | Science Foundation in China2007，15，2： | 0 |
| 6 | TRAF2 regulates T cell immunity by maintaining a Tpl2-ERK survival signaling axis in effector and memory CD8 T cells显示文摘Generation and maintenance of antigen-specific effector and memory T cells are central events in immune responses against infections.We show that TNF receptor-associated factor 2(TRAF2)maintains a survival signaling axis in effector and memory CD8 T cells required for immune responses against infections.This signaling axis involves activation of Tpl2 and its downstream kinase ERK by NF-κB-inducing kinase(NIK)and degradation of the proapoptotic factor Bim.NIK mediates Tpl2 activation by stimulating the phosphorylation and degradation of the Tpl2 inhibitor p105.Interestingly,while NIK is required for Tpl2-ERK signaling under normal conditions,uncontrolled NIK activation due to loss of its negative regulator,TRAF2,causes constitutive degradation of p105 and Tpl2,leading to severe defects in ERK activation and effector/memory CD8 T cell survival.Thus,TRAF2 controls a previously unappreciated signaling axis mediating effector/memory CD8 T cell survival and protective immunity. | Xiaoping Xie Lele Zhu Zuliang Jie Yanchuan Li Meidi Gu Xiaofei Zhou Hui Wang Jae-Hoon Chang Chun-Jung Ko Xuhong Cheng Shao-Cong Sun | 2021 | Cellular & Molecular Immunology2021，18，9： | 0 |
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