| 1 | Specific targeting of nasopharyngeal carcinoma cell line CNE1 by C225-conjugated ultrasmall superparamagnetic iron oxide particles with magnetic resonance imaging显示文摘临床的目标体积(CTV ) 的一个精确定义为在鼻咽的癌(NPC ) 的放射疗法的应用程序是必要的处理。指向对比代理人(C225-USPIO ) 的新奇表皮的生长因素受体(EGFR ) 被结合 ultrasmall superparamagnetic 设计有 cetuximab (C225 ) 的氧化铁(USPIO ) nanoparticles, non-invasively 定义肿瘤的 CTV。到 NPC 房间线 CNE1 的 C225-USPIO 的 immunobinding 活动被流动 cytometry 和 immunofluorescence 证实。在 CNE1 房间的 C225-USPIO 的时间依赖者累积用普鲁士的蓝染色被评估。指向的成为主观和 C225-USPIO 的 subcellular 本地化被传播电子显微镜证实。结果显示了明确地在 CNE1 房间的表面上绑在 EGFR 的那 C225-USPIO 并且被收起进房间。由 CNE1 房间的 C225-USPIO 的举起与时间显著地增加了,当时与人的 IgG-USPIO 相比。另外, 4.7 T 磁性的回声成像(MRI ) 随着时间的过去表明 C225-USPIO 有一个能力在 CNE1 房间积累,与在 MRI T2 加权的信号紧张的结果的显著减少。这些调查结果当一个 MRI 对比代理人和罐头被采用 non-invasively 与 EGFR overexpression 检测早阶段的 NPC,暗示 C225-USPIO 有潜力。这为与混合物在 vivo 实验开始提供足够的理论基础。 | Dongbo Liu Chunli Chen Guangyuan Hu Qi Mei Hong Qiu Guoxian Long Guoqing Hu | 2011 | Acta Biochimica et Biophysica Sinica2011，43，4： | 10 |
| 2 | Nidogen1-enriched extracellular vesicles accelerate angiogenesis and bone regeneration by targeting Myosin-10 to regulate endothelial cell adhesion显示文摘The technique bottleneck of repairing large bone defects with tissue engineered bone is the vascularization of tissue engineered grafts.Although some studies have shown that extracellular vesicles(EVs)derived from bone marrow mesenchymal stem cells(BMSCs)promote bone healing and repair by accelerating angiogenesis,the effector molecules and the mechanism remain unclear,which fail to provide ideas for the future research and development of cell-free interventions.Here,we found that Nidogen1-enriched EV(EV-NID1)derived from BMSCs interferes with the formation and assembly of focal adhesions(FAs)by targeting myosin-10,thereby reducing the adhesion strength of rat arterial endothelial cells(RAECs)to the extracellular matrix(ECM),and enhancing the migration and angiogenesis potential of RAECs.Moreover,by delivery with composite hydrogel,EV-NID1 is demonstrated to promote angiogenesis and bone regeneration in rat femoral defects.This study identifies the intracellular binding target of EV-NID1 and further elucidates a novel approach and mechanism,thereby providing a cell-free construction strategy with precise targets for the development of vascularized tissue engineering products. | Pengzhen Cheng Tianqing Cao Xueyi Zhao Weiguang Lu Sheng Miao Fenru Ning Dong Wang Yi Gao Long Wang Guoxian Pei Liu Yang | 2022 | Bioactive Materials2022，7，6： | 0 |
| 3 | Effects of hypoxia inducible factor-1alpha siRNA on theinvasion of human Hela cells and expression of relatedproteins显示文摘The effects of hypoxia on the invasion and the related protein expression of Hela cells and the role of hypoxia inducible factor-1α(HIF-1α)were investigated.The Hela cells were divided into three groups,namely,H0(non-transfected Hela cells),H1(pGenesil-1 empty plasmid-transfected Hela cells),and H2(HIF-1α-shRNA plasmid-transfected Hela cells),and were cultured under hypoxia(1%O2)and normoxia for 48 h.The expression of HIF-1α,E-cadherin,β-catenin,and actin was detected using Western blot.The scratch test and the invasion assay were applied to examine the invasion in each group.The expression of HIF-1α,E-cadherin,andβ-catenin in tumor grafts was assayed immunohistochemically.Western blot results revealed that the bands of HIF-1α,E-cadherin,β-catenin,and actin proteins were detected in the H0 and H1 groups under hypoxia for 48 h.The expression of E-cadherin,β-catenin,and actin was detected in the H2 group under hypoxia for 48 h,and normoxia.In the H0,H1,and H2 groups under normoxia,and the H2 group under hypoxia for 48 h,no expression of HIF-1αwas detectable.The scratch test showed that the invasive ability in the H2 group was significantly alleviated.Immunohistochemi-cally,it was found that there was a significant difference in the expression of HIF-1α,E-cadherin,andβ-catenin between the H1 and H2 groups(P<0.05),but the difference was not significant between the H0 and H1 groups.It was concluded that the effects of hypoxia on the invasion of human cervical cancer Hela cells and the expression of related proteins(E-cadherin,β-catenin,and actin)depend on HIF-1α. | Bin YANG Xianglin YUAN Yanmei ZOU Qingsong XI Guoxian LONG Qiang FU Guangyuan HU | 2009 | Frontiers of Medicine2009，3，3： | 0 |
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