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Stem cell gene therapy: the risks of insertional mutagenesis and approaches to minimize genotoxicity
Chuanfeng Wu, Cynthia E. Dunbar
《医学前沿(英文)》 2011年 第5卷 第4期 页码 356-371 doi: 10.1007/s11684-011-0159-1
关键词: gene therapy hematopoietic stem cells insertional mutagenesis genotoxicity induced pluripotent stem cell
Optimized human factor IX expression cassettes for hepatic-directed gene therapy of hemophilia B
null
《医学前沿(英文)》 2015年 第9卷 第1期 页码 90-99 doi: 10.1007/s11684-015-0390-2
Gene therapy provides a potential cure for hemophilia B, and significant progress has been achieved in liver-directed gene transfer mediated by adeno-associated viral vectors. Recent clinical trials involving the use of a self-complementary adeno-associated virus serotype 8-human codon-optimized factor IX (AAV8-hFIXco) vector demonstrated encouraging efficacy with hFIX expression stabilized at 1% to 6% of normal level in patients, but safety concerns related to high vector doses are still present. Thus, further improvement of AAV vectors and hFIX expression cassette may positively contribute to the ultimate success of hemophilia B gene therapy. In this study, to obtain a higher expression level of hFIX that potentiates the coagulant capacity of recipients, human FIX expression vector was optimized by upgrading the codon adaption index and adjusting the GC content, inserting a Kozak sequence (GCCACC), and introducing a gain-of-function mutation, R338L (FIX Padua). The efficiency of the published and the presently constructed cassettes was compared through in vivo screening. In addition, the regulatory elements that control the FIX gene expression in these cassettes were screened for liver-specific effectiveness. Among all the constructed cassettes, scAAV-Pre-hFIXco-SIH-R338L, which was the construct under the control of the prothrombin enhancer and prealbumin promoter, resulted in the highest level of coagulant activity, and the expression levels of two constructed cassettes (scAAV-Chi-hFIXco-SIH-R338L and scAAV-Pre-hFIXco-SIH-R338L) were also higher than that of the published cassette (scAAV-LP1-hFIXco-SJ). In summary, our strategies led to a substantial increase in hFIX expression at the protein level or a remarkably elevated coagulant activity. Thus, these reconstructs of hFIX with AAV vector may potentially contribute to the creation of an efficacious gene therapy of hemophilia B.
关键词: factor IX hemophilia B liver-specific regulatory elements hydrodynamic gene transfer
Gene therapy for hemophilia B mice with scAAV8-LP1-hFIX
null
《医学前沿(英文)》 2016年 第10卷 第2期 页码 212-218 doi: 10.1007/s11684-016-0438-y
Hemophilia B is a hemorrhagic disease caused by the deficiency of clotting factor IX (FIX). Gene therapy might be the ultimate strategy for the disease. However, two main problems that should be solved in gene therapy for hemophilia B are immunity and safety. Self-complementary adeno-associated virus serotype 8 (scAAV8), a non-human primate AAV featuring low immunogenicity and high transfection efficiency in liver cells, might be a potential vector for hemophilia B gene therapy. A strong liver-specific promoter-1 (LP1) was inserted and mutant human FIX Arg338Ala was introduced into plasmid scAAV8-LP1 to develop an optimized AAV8 vector that expresses human clotting factor FIX (hFIX). The efficiency of scAAV8-LP1-hFIX administered through normal systemic injection or hydrodynamic injection was compared. A high expression was achieved using hydrodynamic injection, and the peak hFIX expression levels in the 5×1011 and 1×1011 virus genome (vg) cohorts were 31.94% and 25.02% of normal level, respectively, at 60 days post-injection. From the perspective of long-term (200 days) expression, both injection methods presented promising results with the concentration value maintained above 4% of normal plasma. The results were further verified by enzyme-linked immunosorbent assay and activated partial thromboplastin time. Our study provides a potential gene therapy method for hemophilia B.
关键词: hemophilia B AAV8 hFIX gene therapy
Molecular engineering of dendrimer nanovectors for siRNA delivery and gene silencing
Yu Cao, Xiaoxuan Liu, Ling Peng
《化学科学与工程前沿(英文)》 2017年 第11卷 第4期 页码 663-675 doi: 10.1007/s11705-017-1623-5
关键词: gene therapy RNAi therapeutics dendrimer nanovectors gene silencing
Investigation of gene therapy of denovirus in immune suppression
XIA Xi, WANG Beibei, CAO Li, CHEN Gang, WU Peng, LU Yunping, ZHOU Jianfeng, MA Ding
《医学前沿(英文)》 2008年 第2卷 第4期 页码 386-390 doi: 10.1007/s11684-008-0074-2
关键词: different reversible inflammation immunohistochemistry reconstructed adenovirus ciclosporin
Construction of lentiviral vector carrying Rab9 gene and its expression in mouse brain
Youguo HAO, Min ZHANG, Jinzhi XU, Bitao BU, Jiajun WEI
《医学前沿(英文)》 2009年 第3卷 第2期 页码 141-147 doi: 10.1007/s11684-009-0041-6
Zhao DING, Zhishui CHEN, Xilin CHEN, Ming CAI, Hui GUO, Nianqiao GONG
《医学前沿(英文)》 2009年 第3卷 第2期 页码 204-210 doi: 10.1007/s11684-009-0039-0
关键词: anti-ERK2 renal transplantation epithelial mesenchymal transition chronic allograft nephropathy
Antitumor immunity of human SART3 gene vaccine against mouse tumor
HE Yu, YANG Shuhua, LIU Yong, LI Tao
《医学前沿(英文)》 2008年 第2卷 第1期 页码 51-57 doi: 10.1007/s11684-008-0010-5
关键词: antitumor therapy occurrence implantation DNA vaccine SART3 DNA
NES1/KLK10 and hNIS gene therapy enhanced iodine-131 internal radiation in PC3 proliferation
Jiajia Hu, Wenbin Shen, Qian Qu, Xiaochun Fei, Ying Miao, Xinyun Huang, Jiajun Liu, Yingli Wu, Biao Li
《医学前沿(英文)》 2019年 第13卷 第6期 页码 646-657 doi: 10.1007/s11684-018-0643-y
关键词: androgen-independent prostate cancer normal epithelial cell-specific 1/kallikrein 10 sodium/iodide symporter radiation therapy proliferation
Xudong YU MM, Zengwu SHAO MD, Liming XIONG MD, Weiwei XU MM, Hezhong WANG MM, Huifa XU MM,
《医学前沿(英文)》 2009年 第3卷 第4期 页码 415-420 doi: 10.1007/s11684-009-0072-z
关键词: tissue inhibitor of metalloproteinase-3 intervertebral disc rabbit gene therapy
Genetic and clinical markers for predicting treatment responsiveness in rheumatoid arthritis
Xin Wu, Xiaobao Sheng, Rong Sheng, Hongjuan Lu, Huji Xu
《医学前沿(英文)》 2019年 第13卷 第4期 页码 411-419 doi: 10.1007/s11684-018-0659-3
Development of a magnetite-gene complex for gene transfection
Jian XIN BM, Ze-Feng XIA MD, Kai-Xiong TAO MD, Kai-Lin CAI PhD, Gao-Xiong HAN MD, Xiao-Ming SHUAI MD, Ji-Liang WANG MD, Han-Song DU MD, Guo-Bin WANG PhD, Yan LUO MM,
《医学前沿(英文)》 2010年 第4卷 第2期 页码 241-246 doi: 10.1007/s11684-010-0032-7
null
《医学前沿(英文)》 2013年 第7卷 第2期 页码 157-171 doi: 10.1007/s11684-013-0272-4
Non-small-cell lung cancer (NSCLC) is the most common cause of premature death among the malignant diseases worldwide. The current staging criteria do not fully capture the complexity of this disease. Molecular biology techniques, particularly gene expression microarrays, proteomics, and next-generation sequencing, have recently been developed to facilitate effectively its molecular classification. The underlying etiology, pathogenesis, therapeutics, and prognosis of NSCLC based on an improved molecular classification scheme may promote individualized treatment and improve clinical outcomes. This review focuses on the molecular classification of NSCLC based on gene expression microarray technology reported during the past decade, as well as their applications for improving the diagnosis, staging and treatment of NSCLC, including the discovery of prognostic markers or potential therapeutic targets. We highlight some of the recent studies that may refine the identification of NSCLC subtypes using novel techniques such as epigenetics, proteomics, or deep sequencing.
关键词: non-small-cell lung cancer molecular typing individualized medicine molecular-targeted therapy gene expression profiling
null
《医学前沿(英文)》 2017年 第11卷 第1期 页码 120-128 doi: 10.1007/s11684-017-0501-3
Norepinephrine transporter (NET) transfection leads to significant uptake of iodine-131-labeled metaiodobenzylguanidine (131I-MIBG) in non-neuroendocrine tumors. However, the use of 131I-MIBG is limited by its short retention time in target cells. To prolong the retention of 131I-MIBG in target cells, we infected hepatocarcinoma (HepG2) cells with Lentivirus-encoding human NET and vesicular monoamine transporter 2 (VMAT2) genes to obtain NET-expressing, NET-VMAT2-coexpressing, and negative-control cell lines. We evaluated the uptake and efflux of 131I-MIBG both in vitro and in vivo in mice bearing transfected tumors. NET-expressing and NET-VMAT2-coexpressing cells respectively showed 2.24 and 2.22 times higher 131I-MIBG uptake than controls. Two hours after removal of 131I-MIBG-containing medium, 25.4% efflux was observed in NET-VMAT2-coexpressing cells and 38.6% in NET-expressing cells. In vivo experiments were performed in nude mice bearing transfected tumors; results revealed that NET-VMAT2-coexpressing tumors had longer 131I-MIBG retention time than NET-expressing tumors. Meanwhile, NET-VMAT2-coexpressing and NET-expressing tumors displayed 0.54% and 0.19%, respectively, of the injected dose per gram of tissue 24 h after 131I-MIBG administration. Cotransfection of HepG2 cells with NET and VMAT2resulted in increased 131I-MIBG uptake and retention. However, the degree of increase was insufficient to be therapeutically effective in target cells.
关键词: norepinephrine transporter vesicular monoamine transporter 2 -MIBG gene therapy lentivirus vector
《医学前沿(英文)》 2022年 第16卷 第4期 页码 584-595 doi: 10.1007/s11684-021-0844-7
关键词: hemophilia A adeno-associated virus (AAV) human/rat hybrid factor VIII gene therapy dual chain strategy
标题 作者 时间 类型 操作
Stem cell gene therapy: the risks of insertional mutagenesis and approaches to minimize genotoxicity
Chuanfeng Wu, Cynthia E. Dunbar
期刊论文
Optimized human factor IX expression cassettes for hepatic-directed gene therapy of hemophilia B
null
期刊论文
Molecular engineering of dendrimer nanovectors for siRNA delivery and gene silencing
Yu Cao, Xiaoxuan Liu, Ling Peng
期刊论文
Investigation of gene therapy of denovirus in immune suppression
XIA Xi, WANG Beibei, CAO Li, CHEN Gang, WU Peng, LU Yunping, ZHOU Jianfeng, MA Ding
期刊论文
Construction of lentiviral vector carrying Rab9 gene and its expression in mouse brain
Youguo HAO, Min ZHANG, Jinzhi XU, Bitao BU, Jiajun WEI
期刊论文
Adenovirus-mediated antisense ERK2 gene therapy ameliorates chronic allograft nephropathy in a rat model
Zhao DING, Zhishui CHEN, Xilin CHEN, Ming CAI, Hui GUO, Nianqiao GONG
期刊论文
Antitumor immunity of human SART3 gene vaccine against mouse tumor
HE Yu, YANG Shuhua, LIU Yong, LI Tao
期刊论文
NES1/KLK10 and hNIS gene therapy enhanced iodine-131 internal radiation in PC3 proliferation
Jiajia Hu, Wenbin Shen, Qian Qu, Xiaochun Fei, Ying Miao, Xinyun Huang, Jiajun Liu, Yingli Wu, Biao Li
期刊论文
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,
期刊论文
Genetic and clinical markers for predicting treatment responsiveness in rheumatoid arthritis
Xin Wu, Xiaobao Sheng, Rong Sheng, Hongjuan Lu, Huji Xu
期刊论文
Development of a magnetite-gene complex for gene transfection
Jian XIN BM, Ze-Feng XIA MD, Kai-Xiong TAO MD, Kai-Lin CAI PhD, Gao-Xiong HAN MD, Xiao-Ming SHUAI MD, Ji-Liang WANG MD, Han-Song DU MD, Guo-Bin WANG PhD, Yan LUO MM,
期刊论文
Molecular classification of non-small-cell lung cancer: diagnosis, individualized treatment, and prognosis
null
期刊论文
Cotransfecting norepinephrine transporter and vesicular monoamine transporter 2 genes for increased retention of metaiodobenzylguanidine labeled with iodine 131 in malignant hepatocarcinoma cells
null
期刊论文