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jurkat cells transfection lipofectamine

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https://www.readbyqxmd.com/read/27892533/small-sized-stable-lipid-nanoparticle-for-the-efficient-delivery-of-sirna-to-human-immune-cell-lines
#1
Takashi Nakamura, Moeka Kuroi, Yuki Fujiwara, Shota Warashina, Yusuke Sato, Hideyoshi Harashima
Gene silencing by small interfering RNA (siRNA) is useful for analyzing the functions of human immune cells. However, the transfection of siRNA to human immune cells is difficult. Here, we used a multifunctional envelope-type nanodevice (MEND) containing YSK12-C4 (YSK12-MEND) to efficiently introduce siRNA to human immune cell lines, Jurkat, THP-1, KG-1 and NK92. The YSK12-MEND was transfected to human immune cell lines at a siRNA dose range of 1-30 nM, resulting that maximum gene silencing efficiencies at the mRNA level in Jurkat, THP-1, KG-1 and NK92 were 96%, 96%, 91% and 75%, respectively...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27565691/manipulation-of-lipoplex-concentration-at-the-cell-surface-boosts-transfection-efficiency-in-hard-to-transfect-cells
#2
Sara Palchetti, Daniela Pozzi, Cristina Marchini, Augusto Amici, Cristina Andreani, Caterina Bartolacci, Luca Digiacomo, Valentina Gambini, Francesco Cardarelli, Carmine Di Rienzo, Giovanna Peruzzi, Heinz Amenitsch, Rocco Palermo, Isabella Screpanti, Giulio Caracciolo
To date, efficiency upon non-viral DNA delivery remains low and this implies the existence of unidentified transfection barriers. Here we explore the mechanisms of action of multicomponent (MC) cationic liposome/DNA complexes (lipoplexes) by a combination of reporter technologies, dynamic light scattering (DLS), synchrotron small angle X-ray scattering (SAXS), fluorescence activated cell sorting (FACS) analysis and laser scanning confocal microscopy (LSCM) in live cells. Lipofectamine - the gold standard among transfection reagents - was used as a reference...
August 23, 2016: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/27456396/new-polymer-of-lactic-co-glycolic-acid-modified-polyethylenimine-for-nucleic-acid-delivery
#3
Jian-Ming Lü, Zhengdong Liang, Xiaoxiao Wang, Jianhua Gu, Qizhi Yao, Changyi Chen
AIM: To develop an improved delivery system for nucleic acids. MATERIALS & METHODS: We designed, synthesized and characterized a new polymer of lactic-co-glycolic acid-modified polyethylenimine (LGA-PEI). Functions of LGA-PEI polymer were determined. RESULTS: The new LGA-PEI polymer spontaneously formed nanoparticles (NPs) with DNA or RNA, and showed higher DNA or RNA loading efficiency, higher or comparable transfection efficacy, and lower cytotoxicity in several cell types including PANC-1, Jurkat and HEK293 cells, when compared with lipofectamine 2000, branched or linear PEI (25 kDa)...
August 2016: Nanomedicine
https://www.readbyqxmd.com/read/26876255/-antiproliferative-effect-of-silencing-lsd1-gene-on-jurkat-cell-line-and-its-mechanism
#4
Shiwei Han, Yiqun Huang, Ruiji Zheng
OBJECTIVE: To investigate the effect of silencing LSD1 gene by RNA interference on the proliferation, apoptosis on human lymphocytic leukemia Jurkat cell line and its mechanism. METHODS: The hairpin- like oligonucleotide sequences targeting LSD1 gene was transfected into Jurkat cells by lipofectamine(TM) 2000. The LSD1 mRNA and protein were detected by RQ- PCR and Western blot. Cell growth was determined by MTT. Cell apoptosis was analyzed by flow cytometry. The expression of Bcl-2, Bax, procaspase- 3, and histone H3K4me, H3K4me2, H3K4me3, Act- H3, H3K9me were detected by Western blot...
January 2016: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/26846409/effect-of-silencing-hoxa5-gene-expression-using-rna-interference-on-cell-cycle-and-apoptosis-in-jurkat-cells
#5
Hui-Ping Huang, Wen-Jun Liu, Qu-Lian Guo, Yong-Qi Bai
Acute lymphocytic leukemia (ALL) is a common malignant tumor with a high morbidity rate among children, accounting for approximately 80% of leukemia cases. Although there have been improvements in the treatment of patients frequent relapse lead to a poor prognosis. The aim of the present study was to determine whether HOXA5 may be used as a target for gene therapy in leukemia in order to provide a new treatment. Mononuclear cells were extracted from the bone marrow according to the clinical research aims. After testing for ALL in the acute stage, the relative mRNA and protein expression of HOXA5 was detected in the ALL remission groups (n=25 cases per group) and the control group [n=20 cases, immune thrombocytopenia (ITP)]...
March 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/22848246/tumor-suppressor-and-t-regulatory-functions-of-foxp3-are-mediated-through-separate-signaling-pathways
#6
Emil Heinze, Grace Chan, Rachel Mory, Raz Khavari, Asif Alavi, Sue Y Chung, Robert N Nishimura, Richard H Weisbart
Foxp3 is a nuclear transcription factor that is both a tumor suppressor factor and regulator of T-regulatory cell (Treg) function, and is a potential therapeutic target in both autoimmunity and cancer. In order to distinguish molecular pathways responsible for these separate Foxp3 functions, deletion mutants of Foxp3 proteins were transduced and analyzed for cytotoxic activity in human cancer cell lines Skov3, MDA-MB-231, MCF-7 and Jurkat. Human Foxp3 cDNA mutants were amplified and ligated to produce plasmids for direct cell transfection...
July 2011: Oncology Letters
https://www.readbyqxmd.com/read/17956689/-transcriptional-activity-of-wt1-gene-promoter-and-enhancer-in-diverse-cell-lines
#7
Shao-Yan Hu, Zi-Xing Chen, Ye Zhao, Jian-Nong Cen, Min Gu, Zheng-Zheng Fu, Jun He, Wei-Ying Gu
The objective of study was to investigate tissue-specific transcriptional activity of WT1 (Wilms' tumor gene) promoter and enhancer in cell lines with diverse tissue origin for leukemic gene therapy depending on WT1 transcriptional regulation elements. WT1 promoter and enhancer were ligated into pEGFP-1 to construct a recombinant vectors with EGFP gene as a reporter. By using electroporation or lipofectamine, the resultant constructs were transfected into 13 cell lines including WT1-expressing hematopoietic cell lines (K562, NB4, THP-1 and SHI-1), WT1-nonexpressing hematopoietic cell lines (U937 and Jurkat), WT1-expressing nonhematopoietic cell lines (MCF-7, T47D and 293) and WT1-nonexpressing nonhematopoietic cell lines (ECV304, SMMC7721, HT-29 and SHG44)...
October 2007: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/16194448/transfection-agent-induced-nanoparticle-cell-loading
#8
Karin Montet-Abou, Xavier Montet, Ralph Weissleder, Lee Josephson
Loading cells with magnetic nanoparticles, and tracking their fate in vivo by high resolution MRI, is an attractive approach for enhancing the efficacy of cell-based therapies including those utilizing hematopoietic stem cells, neuroprogenitor cells, and T cells. The transfection agent (internalization agent) assisted loading with the Feridex IV nanoparticle is an attractive method of loading because of the low cost of materials, and possible low regulatory barriers for eventual clinical use. We therefore explored the interaction between Feridex IV and three internalization agents protamine (PRO), polylysine (PLL), and lipofectamine (LFA)...
July 2005: Molecular Imaging
https://www.readbyqxmd.com/read/15368327/inhibition-of-bcr-abl-and-or-c-abl-gene-expression-by-small-interfering-double-stranded-rnas-cross-talk-with-cell-proliferation-factors-and-other-oncogenes
#9
Hideki Ohba, Zhivko Zhelev, Rumiana Bakalova, Ashraf Ewis, Toshiro Omori, Mitsuru Ishikawa, Yasuo Shinohara, Yoshinobu Baba
BACKGROUND: Short, 21-mer, double-stranded/small interfering RNAs (ds/siRNAs) were designed to target bcr-abl mRNA in chronic myelogenous leukemia (CML) with a potential also to target c-abl mRNA. METHODS: ds/siRNAs were transfected into bcr-abl-positive K-562 cells (derived from blast-crisis) or bcr-abl-negative/c-abl-positive Jurkat cells (derived from acute lymphoblastic leukemia) using lipofectamine. ds/siRNAs intracellular uptake was detected by fluorescent confocal microscopy using fluorescein-labeled ds/siRNAs...
September 15, 2004: Cancer
https://www.readbyqxmd.com/read/15132893/-effect-of-the-truncated-human-apoptosis-inducing-factor-expression-on-apoptosis-of-hela-cells
#10
Cui-juan Yu, Yan-jing Meng, Jing Zhao, Zhi Wang, Cheng-ji Wang, An-gang Yang
AIM: To observe the expression of the truncated human apoptosis-inducing factor (AIF) gene and its apoptosis-inducing effect on HeLa cells. METHODS: Full-length human AIF gene was cloned by RT-PCR, then the truncated AIF gene was constructed by deleting the N-terminal mitochondrial location sequence (MLS), and inserted into the EGFP co-expression vector pIRES2-EGFP. After being transfected into HeLa cells with Lipofectamin, the expression of the truncated AIF gene and its effect on HeLa cells morphology and growth condition were detected by fluorescence microscope, immunohistochemical staining, indirect fluoroimmunoassay and electron microscope analysis...
January 2003: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/12573622/cationic-lipid-and-polymer-based-gene-delivery-to-human-pancreatic-islets
#11
Ram I Mahato, James Henry, Ajit S Narang, Omaima Sabek, Daniel Fraga, Malak Kotb, A Osama Gaber
Transplantation of pancreatic islets has great potential for treating Type I diabetes. Ex vivo gene therapy may promote re-vascularization or inhibit apoptosis of the islets and promote graft. In this study, we investigated the feasibility of non-viral gene delivery using Enhanced Green Fluorescent Protein (EGFP) and human Vascular Endothelial Growth Factor (hVEGF(165)) expression plasmids as model reporter and therapeutic genes. LipofectAMINE/pDNA and Superfect/pDNA complexes showed high transfection efficiency in rapidly dividing Jurkat cells, but low transfection in non-dividing human islets...
January 2003: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/11724296/inhibition-of-histone-mediated-gene-transfer-in-eucaryotic-cells-by-anti-histone-igg
#12
O Hasselmayer, I Demirhan, A Chandra, M Bayer, R Müller, P Chandra
In our laboratory, the gene transfer efficiency of some lipofection reagents (lipofectine, lipofectamine, DOTAP and Dosper) and histones H3 and H4 was compared to that of DEAE-Dextran (64). The histones H3 and H4 were found to have the highest transfection efficiency of all the agents tested. In the present study we have analyzed other parameters important for gene delivery by the histones H3 and H4. We transferred the HIV-1 tat gene to Jurkat cells and measured the transactivation of HIV-1-LTR by the transactivator protein, expressed in Jurkat cells...
July 2001: Anticancer Research
https://www.readbyqxmd.com/read/10195264/histone-mediated-transfer-and-expression-of-the-hiv-1-tat-gene-in-jurkat-cells
#13
COMPARATIVE STUDY
I Demirhan, O Hasselmayer, A Chandra, M Ehemann, P Chandra
We studied the gene transfer efficiency of lipofection reagents in comparison to DEAE-Dextran. DOTAP, Dosper, and Lipofectin have lower transfection efficiency; Lipofectamine has a 2.5-fold better efficiency compared with DEAE-Dextran. We report a novel and highly efficient DNA transfer system based on the DNA-binding proteins histone 3 and histone 4. We have transferred the HIV-1 tat gene and measured the transactivation of HIV-1 LTR by the transactivator protein, expressed in Jurkat cells. The HIV-1 LTR was linked to the CAT gene as a reporter...
November 1998: Journal of Human Virology
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