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Effect of inhibiting tyrosine kinase Src expression on protein phosphatase 2A and tau phosphorylation

LIU Rong, ZENG Ji, ZHOU Xinwen, WANG Jianzhi, PEI Jinjing

Frontiers of Medicine 2008, Volume 2, Issue 3,   Pages 235-238 doi: 10.1007/s11684-008-0044-8

Abstract: Specific Src siRNA was transfected into cultured mouse neuroblastoma N2a cells to inhibit the expressionY307 and tau at different sites, as well as PP2A activity were detected at different time points after siRNAtransfection.Twelve hours after siRNA transfection, the protein level of Src was dramatically decreased, with decreased

Keywords： hyperphosphorylation     PP2A activity     cellular regulation     siRNA     siRNA transfection    

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Construction of Hsp90β gene specific silencing plasmid and its transfection efficiency

JI Yewei, NIE Bin, LI Ping, ZHOU Yuanguo, XU Xiaoyu

Frontiers of Medicine 2007, Volume 1, Issue 3,   Pages 253-257 doi: 10.1007/s11684-007-0048-9

Abstract: The purpose of this work was to construct the plasmid that could direct the synthesis of siRNA-like transcriptsand specific repression of human heat shock protein 90β (Hsp90β) gene expression and to compare the transfectionefficiency of the plasmids in varying conditions of transfection.The transfection efficiency was measured by detection of enhanced green fluorescence protein (EGFP).Transfection efficiency was still low in the HepG2 cells.

Keywords： HindIII     transfection efficiency     detection     enhanced     different    

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Effects of podocin transfection on CD2AP distribution in HEK293 cells

SHA Yugen, HUANG Songming, ZHANG Aihua, ZHAO Fei, CHEN Ronghua

Frontiers of Medicine 2008, Volume 2, Issue 1,   Pages 35-38 doi: 10.1007/s11684-008-0007-0

Abstract: this paper is to construct a podocin fluorescence expression vector and observe the effects of podocin transfectionAfter podocin transfection, CD2AP redistributed from the perinucleus to the cytoplasm in HEK293 cells

Keywords： pEGFP-NPHS2 expression     transfection     pEGFP-C2     cytoplasm     digested    

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Influence of Survivin-targeted siRNA on the biological features of colorectal carcinoma cells

XIONG Ying, GUO Wen, LI Ting, LI Ke

Frontiers of Medicine 2007, Volume 1, Issue 3,   Pages 304-307 doi: 10.1007/s11684-007-0058-7

Abstract: The transient transfection of survivin-targeted siRNA to Lovo cells and its influence on the biologicalTwo pairs of 19 base pairs (bp) siRNA-specific targeted survivin gene were designed and synthesized byAfter transient transfection of the two survivin-targeted siRNAs to Lovo cells by Lipofectamine™ 2000Seventy-two hours after transfection, apoptosis rates of the two RNAi groups were 21.51% and 26.28%,The results at 72 h after transfection were that the optical density (OD) at 490 nm of the two RNAi groups

Keywords： control     therapy     influence     Survivin-1     colorectal carcinoma    

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Molecular engineering of dendrimer nanovectors for siRNA delivery and gene silencing

Yu Cao, Xiaoxuan Liu, Ling Peng

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 663-675 doi: 10.1007/s11705-017-1623-5

Abstract: Small interfering RNA (siRNA) therapeutics hold great promise to treat a variety of diseases, as longDendrimers are appealing vectors for siRNA delivery by virtue of their well-defined molecular architecturebeen established, some of them out-performing the currently available nonviral vectors in delivering siRNAadvantages of dendrimer delivery vectors as well as our bio-inspired structurally flexible dendrimers for siRNAself-assembling amphiphilic dendrimers to construct supramolecular dendrimer nanosystems for effective siRNA

Keywords： gene therapy     RNAi therapeutics     dendrimer     nanovectors     gene silencing    

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The role of CDK1 siRNA interference in cell cycle and cell apoptosis

Hui XIAO PhD, Ming TIAN MM, Junna GE MM, Xin Wei MD, Zhaoming LI MM, Xiaolan LI MS, Deding TAO PhD, Junbo HU MD, Jianping GONG MD,

Frontiers of Medicine 2009, Volume 3, Issue 4,   Pages 384-389 doi: 10.1007/s11684-009-0070-1

Abstract: In the present report, cyclin-dependent kinase1 (CDK1) siRNA was transfected into cells to silence thesignificantly, especially from 48thh to 60thh after transfection.The DNA content analysis showed that transfection of CDK1 siRNA led to cells accumulating in G/M phasesignificant difference in the apoptotic rate between transfected cells and the control cells after transfectionof CDK1 siRNA for 48 or 60h.

Keywords： cyclin-dependent kinase1     siRNA interference     cell cycle     apoptosis    

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Effects of hypoxia inducible factor-1alpha siRNA on the invasion of human Hela cells and expression of

Bin YANG MS , Xianglin YUAN , Yanmei ZOU , Qingsong XI , Guoxian LONG , Qiang FU , Guangyuan HU MM ,

Frontiers of Medicine 2009, Volume 3, Issue 3,   Pages 303-308 doi: 10.1007/s11684-009-0060-3

Abstract: 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, H (non-transfected Hela cells), H (pGenesil-1 empty plasmid-transfected Hela cells), and H (HIF-1α-shRNA plasmid-transfected Hela cells), and were cultured under hypoxia (1% O) 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, and β-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 H and H groups under hypoxia for 48h. The expression of E-cadherin, β-catenin, and actin was detected in the H group under hypoxia for 48h, and normoxia. In the H, H, and H groups under normoxia, and the H group under hypoxia for 48h, no expression of HIF-1α was detectable. The scratch test showed that the invasive ability in the H group was significantly alleviated. Immunohistochemically, it was found that there was a significant difference in the expression of HIF-1α, E-cadherin, and β-catenin between the H and H groups (<0.05), but the difference was not significant between the H and H 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.

Keywords： hypoxia     actin     β     -catenin     E-cadherin     invasion    

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Changes of phenotype and function of human CD4 CD25 T cells induced by transfection of Foxp3

WU Kui, BI Yutian, WANG Yaoli, WANG Changzheng

Frontiers of Medicine 2008, Volume 2, Issue 4,   Pages 366-369 doi: 10.1007/s11684-008-0070-6

Abstract: The aim of this paper is to explore the effects of transfection of Foxp3 gene on the phenotype and functionFoxp3-gene transfected CD4 T cells could express Foxp3 and transfection of Foxp3 gene up-regulated theAfter transfection, the proliferation of CD4 T cells was eliminated.
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Impact of siRNA targeting pirh2 on proliferation and cell cycle control of the lung adenocarcinoma cell

SU Yuan, JIN Yang, ZHANG Xiaoju, ZHOU Qiong, BAI Ming, ZHU Liping

Frontiers of Medicine 2007, Volume 1, Issue 4,   Pages 359-363 doi: 10.1007/s11684-007-0069-4

Abstract: The inhibition of pirh2 expression by siRNA (psiRNA-pirh2) resulted in reduced cell proliferation and

Keywords： control     interruption     cytoplasm     number     growth    

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Adenovirus-mediated tissue inhibitor of metalloproteinase-3 gene transfection inhibits rabbit intervertebral

Xudong YU MM, Zengwu SHAO MD, Liming XIONG MD, Weiwei XU MM, Hezhong WANG MM, Huifa XU MM,

Frontiers of Medicine 2009, Volume 3, Issue 4,   Pages 415-420 doi: 10.1007/s11684-009-0072-z

Abstract: The aim of this study was to investigate the inhibitory effects of recombinant adenovirus vector carrying tissue inhibitor of metalloproteinase-3 (RAdTIMP-3) against degeneration of rabbit intervertebral disc. Thirty Japanese white rabbits of 4 months old were randomly divided into 5 groups. Mild or moderate rabbit lumbar disc degeneration model was constructed with the controllable axial loading device by imposing 98N pressure at the discs for 2 weeks. Various doses of virus were injected into the degenerated discs as follows: 20μL of normal saline in group 1; 20μL of RAd66 (an empty adenovirus vector, 1.0×10OPU/mL) in group 2; and 20, 10, and 5μL of RAdTIMP-3 (1.0×10OPU/mL) in groups 3, 4, and 5, respectively. Two weeks after the injection, the discs were collected for investigations, including assessment of degeneration degrees according to the Thompson’s grading system, reverse-transcription polymerase chain reaction (RT-PCR) assay for TIMP-3 gene, Safranin O-Fast green staining, and immunohistochemical staining for TIMP-3 and type II collagen. According to Thompson’s criteria, the degeneration of groups 3, 4, and 5, especially group 3, was alleviated as compared with groups 1 and 2. RT-PCR revealed that the expression of TIMP-3 in groups 3, 4, and 5, especially in group 3, was significantly enhanced as compared with group 1 (<0.01). Both Safranin O-Fast green staining and type II collagen staining demonstrated better reserved integrity of disc matrix in groups 3, 4, and 5 than in groups 1 and 2. TIMP-3 staining exhibited an obvious increase of positive-staining rate in groups 3, 4, and 5 as compared with group 1. The positive-staining rate in group 3 (79.42%±1.35%) was about 3times that of group 1 (25.47%±5.46%, <0.01). RAdTIMP-3 can effectively protect the matrix of rabbit intervertebral disc against overloading-induced degeneration in a dose-dependent manner, resulting in the alleviation of disc degeneration.

Keywords： tissue inhibitor of metalloproteinase-3     intervertebral disc     rabbit     gene therapy    

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Gene delivery into isolated

Nan Zheng, Ziyuan Song, Yang Liu, Lichen Yin, Jianjun Cheng

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 521-528 doi: 10.1007/s11705-017-1612-8

Abstract: Cationic polymers and lipids have been widely utilized to efficiently deliver DNA and siRNA into mammalianThe PPABLG was able to condense DNA to form nanocomplexes, and they exhibited significantly improved transfectionefficiencies compared with commercial transfection reagent Lipofectamine 2000 and classical cell penetrating

Keywords： α-helical polypeptide     plant gene delivery     protoplast     intact leaves     transfection    

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Multifunctional peptide conjugated amphiphilic cationic copolymer for enhancing ECs targeting, penetrating and nuclear accumulation

Xinghong Duo, Lingchuang Bai, Jun Wang, Jintang Guo, Xiangkui Ren, Shihai Xia, Wencheng Zhang, Abraham Domb, Yakai Feng

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 889-901 doi: 10.1007/s11705-020-1919-8

Abstract: PEI-PEG-REDV-G-TAT-G-NLS copolymers with the aim to develop the gene carriers with low cytotoxicity and high transfectionThe results of transfection demonstrated that these multitargeting gene complexes possessed relativelyhigh transfection efficiency.REDV-G-TAT-G-NLS peptide, the multitargeting polycationic gene carrier with low cytotoxicity and high transfection

Keywords： gene carriers     multitargeting function     ECs     transfection efficiency    

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Title Author Date Type Operation

Effect of inhibiting tyrosine kinase Src expression on protein phosphatase 2A and tau phosphorylation

LIU Rong, ZENG Ji, ZHOU Xinwen, WANG Jianzhi, PEI Jinjing

Journal Article

Construction of Hsp90β gene specific silencing plasmid and its transfection efficiency

JI Yewei, NIE Bin, LI Ping, ZHOU Yuanguo, XU Xiaoyu

Journal Article

Effects of podocin transfection on CD2AP distribution in HEK293 cells

SHA Yugen, HUANG Songming, ZHANG Aihua, ZHAO Fei, CHEN Ronghua

Journal Article

Influence of Survivin-targeted siRNA on the biological features of colorectal carcinoma cells

XIONG Ying, GUO Wen, LI Ting, LI Ke

Journal Article

Molecular engineering of dendrimer nanovectors for siRNA delivery and gene silencing

Yu Cao, Xiaoxuan Liu, Ling Peng

Journal Article

The role of CDK1 siRNA interference in cell cycle and cell apoptosis

Hui XIAO PhD, Ming TIAN MM, Junna GE MM, Xin Wei MD, Zhaoming LI MM, Xiaolan LI MS, Deding TAO PhD, Junbo HU MD, Jianping GONG MD,

Journal Article

Effects of hypoxia inducible factor-1alpha siRNA on the invasion of human Hela cells and expression of

Bin YANG MS , Xianglin YUAN , Yanmei ZOU , Qingsong XI , Guoxian LONG , Qiang FU , Guangyuan HU MM ,

Journal Article

Changes of phenotype and function of human CD4 CD25 T cells induced by transfection of Foxp3

WU Kui, BI Yutian, WANG Yaoli, WANG Changzheng

Journal Article

Impact of siRNA targeting pirh2 on proliferation and cell cycle control of the lung adenocarcinoma cell

SU Yuan, JIN Yang, ZHANG Xiaoju, ZHOU Qiong, BAI Ming, ZHU Liping

Journal Article

Adenovirus-mediated tissue inhibitor of metalloproteinase-3 gene transfection inhibits rabbit intervertebral

Xudong YU MM, Zengwu SHAO MD, Liming XIONG MD, Weiwei XU MM, Hezhong WANG MM, Huifa XU MM,

Journal Article

Gene delivery into isolated

Nan Zheng, Ziyuan Song, Yang Liu, Lichen Yin, Jianjun Cheng

Journal Article

Multifunctional peptide conjugated amphiphilic cationic copolymer for enhancing ECs targeting, penetrating and nuclear accumulation

Xinghong Duo, Lingchuang Bai, Jun Wang, Jintang Guo, Xiangkui Ren, Shihai Xia, Wencheng Zhang, Abraham Domb, Yakai Feng

Journal Article