Transfection and Genome Engineering Innovation Delivered Transfection Selection Guide 4 Contents Transfection Decision Tree 5 Superior Transfection Reagents 6

Total Page:16

File Type:pdf, Size:1020Kb

Transfection and Genome Engineering Innovation Delivered Transfection Selection Guide 4 Contents Transfection Decision Tree 5 Superior Transfection Reagents 6 Transfection and genome engineering Innovation delivered Transfection selection guide 4 Contents Transfection decision tree 5 Superior transfection reagents 6 Lipofectamine® 3000 Transfection Reagent 6 Lipofectamine® RNAiMAX Transfection Reagent 10 Lipofectamine® MessengerMAX™ Transfection Reagent 11 ExpiFectamine™ 293 Transfection Kit 14 Broad-spectrum transfection reagent 15 Lipofectamine® 2000 Transfection Reagent 15 Electroporation 16 Neon® Transfection System 16 In vivo delivery 17 Invivofectamine 3.0 Reagent 17 Transfection-related products 19 Opti-MEM® I Reduced-Serum Medium 19 Selection antibiotics 19 Genome modulation and engineering 20 Ambion® siRNA 20 mirVana™ miRNA Mimics and Inhibitors 22 GeneArt® CRISPR tools 24 GeneArt® TAL effector tools 25 Ordering information 26 50,000 Transfection decision tree Transfection selection guide 45,000 Transfection Transfection 40,000 decision tree 35,000 Transfection is the process by which nucleic acids are introduced into eukaryotic cells. 30,000 PAYLOAD RNAi Plasmid DNA mRNA Techniques vary widely and include lipid-based transfection and physical methods such as 25,000 ® siRNA, miRNA Cas9 DNA, GFP, Luc, shRNA Cas9 mRNA, GFP mRNA electroporation. Lipofectamine transfection reagents are the most trusted and cited in the 20,000 scientific literature due to their superior transfection performance and broad cell spectrum. 15,000 An overview of our most effective transfection products is shown in Table 1 to help you 10,000 COTRANSFECTION choose the solution that’s right for you. 5,000 0 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 201020112012 2013 2014 Table 1. Transfection selection guide—more blocks represent higher Cumulative number of publications citing the use of Lipofectamine® family of reagents since 1996. ® ® ® Lipofectamine® transfection efficiency into a greater number of cell types. Lipofectamine Lipofectamine Lipofectamine TRANSFECTION TM Difficult-to- REAGENT RNAiMAX 2000, 3000 3000 MessengerMAX Co- Easy-to-transfect transfect Primary Suspension Transfection product DNA mRNA RNAi delivery* cells cells cells Stem cells cells Superior transfection reagents Lipofectamine® 3000 Transfection Reagent Lipofectamine® RNAiMAX Transfection Reagent GREAT COULD BE POOR GREAT COULD BE POOR Lipofectamine® MessengerMAX™ RESULTS BETTER RESULTS RESULTS BETTER RESULTS Transfection Reagent ExpiFectamine™ 293 ™ Transfection Kit Recommended for Expi293F cells Broad-spectrum transfection reagent Lipofectamine® 2000 Transfection Reagent TRY TRY TRY TRY ® ® Electroporation 1 Reverse transfection 1 Neon Transfection 1 Different DNA 1 mRNA + Lipofectamine 2 Different cell density System concentration MessengerMAX™ reagent Neon® Transfection System 3 Increased siRNA 2 Viruses with shRNA 2 Different cell density 2 Plasmid DNA + Neon® concentration Transfection System In vivo delivery 3 mRNA + Neon® Transfection System Invivofectamine 3.0 Reagent In vivo delivery to liver following tail vein injection ® Neon 4 Viruses Transfection System *Cotransfection of RNAi vector and siRNA. 4 5 Gentle with low toxicity Enhance your cancer research ® Superior transfection reagents Lipofectamine 3000 reagent was designed to optimize every step The superior transfection efficiency and broad cell spectrum of Superior in the transfection process. The superior transfection performance Lipofectamine® 3000 reagent enables excellent flexibility to use your allows you to reduce the reagent dose and improve cell viability cell line of choice in cancer studies (Figure 4). transfection reagents ® Lipofectamine 3000 Transfection Reagent “We were very happy and surprised to see when working with your cell line of interest (Figure 3). ® Lipofectamine® 3000 reagent leverages our most advanced lipid Lipofectamine 3000 (reagent) provide a nanoparticle technology to enable superior transfection performance more than 10-fold difference in transfection and reproducible results. It delivers exceptional transfection efficiency efficiency in our difficult-to-transfect cell line. into the widest range of difficult-to-transfect and common cell types There was even a reduction in cell death. (Figures 1 and 2) with improved cell viability. Awesome results!” – Rui Eduardo Castro, PhD % Transfection University of Lisbon 100 Transfection efciency in cancer cell line panel Lipofectamine® 3000 reagent offers: 90 100 • Superior transfection efficiency—into the broadest spectrum of Lipofectamine® 3000 Lipofectamine® 3000 Lipofectamine® 2000 Competitor y 80 c difficult-to-transfect cell types ® n 80 Lipofectamine 2000 e i 70 c • Improved cell viability—gentle on your cells, with low toxicity f e 60 HEK 293 60 on i t 40 ec 50 f s n a 40 r 20 T HeLa % Transfection 30 % Lipofectamine® 2000 0 5 7 1 0 0 9 0 3 6 8 T 1 3 2 1 8 D - - - - T L 2 i ® 2 R 20 s - 14 V 48 62 4 54 46 Lipofectamine 3000 46 H - - o - L 193 ak - 578 H O I W a W T - E B - - C I s ® ANC S S S B DU K M Lipofectamine LTX M P H 10 NC - - S HCC LNCaP NC K S DA 0 M 0.1 0.2 0.3 0.4 Cell line Dose (µL) Western blot, HepG2 HepG2 Lipofectamine® Lipofectamine® Competitor Competitor 2000 3000 1 2 Figure 3. Superior transfection efficiency of Lipofectamine® 3000 Figure 4. Transfection efficiency in a cancer cell line panel. Lipofectamine® reagent at low doses. Each reagent was used to transfect HeLa cells in a 2000 reagent and Lipofectamine® 3000 reagent were used to transfect 17 cell GST-STAT 96-well format at the indicated doses with an emerald green fluorescent lines with a GFP-expressing plasmid in a 24-well plate format using 0.5 µg A549 protein (emGFP)–expressing vector. Analysis was performed 48 hours plasmid/well and the recommended protocols for each reagent. GFP expression posttransfection using flow cytometry to determine percent transfection was analyzed 48 hours posttransfection. Each condition was tested in triplicate, ® β-actin efficiency. Lipofectamine 3000 reagent delivered higher efficiency than both and the data points with error bars show mean transfection efficiency with Lipofectamine® 2000 reagent and Lipofectamine® LTX reagent. standard deviation. Figure 2. Lipofectamine® 3000 reagent outperforms Lipofectamine® 2000 and competitor reagents. Each reagent was used to transfect HEK 293, Figure 1. Enhanced protein expression using Lipofectamine® 3000 reagent. HeLa, LNCaP, HepG2, and A549 cell lines in a 96-well format, and green HepG2 cells were transfected with a vector expressing GST-tagged STAT fluorescent protein (GFP) expression was analyzed 48 hours posttransfection. protein. A western blot was performed to determine the level of expression using Lipofectamine® 3000 reagent provided higher GFP transfection efficiency than β-actin as a control. Lipofectamine® 2000 and competitor reagents for all five cell lines. 6 7 Generate induced pluripotent stem cells Improve gene editing outcomes Transfect stem cells ® ® Induced pluripotent stem cells (iPSCs) hold immense promise for Lipofectamine 3000 reagent was developed to break through Lipofectamine 3000 reagent was developed to unleash the power Superior the future of regenerative medicine and personalized therapeutic the boundaries of traditional delivery methods and facilitate new of stem cells by providing a highly efficient, cost-effective nucleic treatments for a myriad of diseases and conditions. The superior technologies, such as genome engineering, in more biologically acid delivery alternative to electroporation (Figure 7). This advanced transfection reagents transfection efficiency of Lipofectamine® 3000 reagent in relevant systems. With this reagent, GeneArt® CRISPR vectors lipid nanoparticle technology minimizes the stress on cells caused conjunction with the Epi5™ Episomal iPSC Reprogramming Kit targeting the AAVS1 locus in HepG2 and U2OS cells show improved by electroporation, simplifies the reprogramming workflow, and enables highly efficient reprogramming of somatic cells without the transfection efficiency (Figure 6), mean fluorescence intensity, enables advanced gene-editing technologies. need for electroporation (Figure 5). and genomic cleavage. High transfection and genome editing efficiency is also observed with GeneArt® Precision TALs. These advancements in delivery help minimize painstaking downstream workflows, enable easier stem cell manipulation, and enhance site- specific insertion of transgenes into the genome. A B A B 150,000 A B 200,000 150,000 100,000 intensity intensity P P 100,000 50,000 50,000 Mean OF Mean OF 0 0 DNA: 1.0 µg DNA: 1.3 µg Lipofectamine® 3000: 1.5 µL Lipofectamine® 3000: 1.5 µL SSEA4+/GFP+: 42% SSEA4+/GFP+: 69% 3 µL Lipofectamine ® 2000 1.5 µL Lipofectamine ® 3000 3 µL Lipofectamine ® 2000 1.5 µL Lipofectamine ® 3000 GFP MFI 247344 GFP MFI 456741 Figure 5. Reprogramming efficiency of Lipofectamine® 3000 reagent Figure 6. Transfection efficiency and protein expression using GeneArt® Figure 7. Transfection of stem cells. (A) H9 embryonic stem cells (ESCs) or (B) compared to electroporation. BJ fibroblasts as well as neonatal (HDFn) CRISPR Nuclease Vector. The vector contained an OFP reporter gene and was iPSCs were transfected using Lipofectamine® 3000 reagent. Cells were visualized and adult (HDFa) human dermal fibroblasts were reprogrammed to iPSCs by transfected with Lipofectamine® 2000 or Lipofectamine® 3000 reagent into (A) by fluorescence microscopy and processed using flow cytometry to determine transfection of Epi5™ vectors using either Lipofectamine® 3000 reagent or U2OS and (B) HepG2 cell lines. Bar graphs show reporter gene expression;
Recommended publications
  • Dharmacon™ Edit-R™ CRISPR-Cas9 Gene Editing Products
    GE Healthcare Specific, functional and scalable Dharmacon™ Edit-R™ CRISPR-Cas9 Gene Editing Products CR SPR Table of Contents Page 4 Dharmacon™ Gene Editing Workflows Page 8 Edit-R CRISPR Guide RNA Page 22 Edit-R Cas9 Nuclease Page 30 Edit-R CRISPR-Cas9 Screening Libraries Page 37 Guide RNA Design with the Dharmacon™ CRISPR RNA Configurator Page 40 Delivery solutions for Gene Editing Application Notes Page 44 A CRISPR-Cas9 gene engineering workflow: generating functional knockouts using Edit-R™ Cas9 and synthetic crRNA and tracrRNA Page 50 Homology-directed repair with Dharmacon™ Edit-R™ CRISPR-Cas9 reagents and single-stranded DNA oligos Page 54 Microinjection of zebrafish embryos using Dharmacon™ Edit-R™ Cas9 Nuclease mRNA, synthetic crRNA, and tracrRNA for genome engineering Page 58 Optimization of reverse transfection of Dharmacon™ Edit-R™ synthetic crRNA and tracrRNA components with DharmaFECT™ transfection reagent in a Cas9-expressing cell line 3 Dharmacon™ Gene Editing Workflows Choose your application Choose the right tools for your application Whether you’re goal is gene Gene knockout Gene knockin knockout from imperfect precise insertion or alteration of a gene repair by non-homologous end joining (NHEJ) or creating an insertion or other knockin with Loss-of-function homology-directed repair (HDR), Single gene knockout screening of multiple this workflow guide will assist genes at once you in selecting the right Edit-R™ genome engineering tools for Knockout cell line creation your application. or loss-of-function analysis in
    [Show full text]
  • Virapower™ Lentiviral Expression Systems Lentiviral Systems for High-Level Expression in Dividing and Non-Dividing Mammalian Cells
    ViraPower™ Lentiviral Expression Systems Lentiviral systems for high-level expression in dividing and non-dividing mammalian cells Catalog nos. K4950-00, K4960-00, K4970-00, K4975-00, K4980-00, K4985-00, K4990-00, K367-20, K370-20, and K371-20 Version G 14 April, 2006 25-0501 Corporate Headquarters Invitrogen Corporation 1600 Faraday Avenue Carlsbad, CA 92008 T: 1 760 603 7200 F: 1 760 602 6500 User Manual E: [email protected] For country-specific contact information visit our web site at www.invitrogen.com ii Table of Contents Kit Contents and Storage........................................................................................................................................... v Accessory Products ................................................................................................................................................... ix Product Qualification................................................................................................................................................. x Introduction ....................................................................................................................... 1 Overview...................................................................................................................................................................... 1 Biosafety Features of the System .............................................................................................................................. 4 Experimental Outline................................................................................................................................................
    [Show full text]
  • Enhanced Transfection Efficiency of Human Embryonic Stem Cells By
    STEM CELLS AND DEVELOPMENT Volume 19, Number 12, 2010 ª Mary Ann Liebert, Inc. DOI: 10.1089=scd.2009.0505 Enhanced Transfection Efficiency of Human Embryonic Stem Cells by the Incorporation of DNA Liposomes in Extracellular Matrix Luis G. Villa-Diaz,1,* Jose L. Garcia-Perez,2,* and Paul H. Krebsbach1,3 Because human embryonic stem (hES) cells can differentiate into virtually any cell type in the human body, these cells hold promise for regenerative medicine. The genetic manipulation of hES cells will enhance our under- standing of genes involved in early development and will accelerate their potential use and application for regenerative medicine. The objective of this study was to increase the transfection efficiency of plasmid DNA into hES cells by modifying a standard reverse transfection (RT) protocol of lipofection. We hypothesized that immobilization of plasmid DNA in extracellular matrix would be a more efficient method for plasmid transfer due to the affinity of hES cells for substrates such as Matrigel and to the prolonged exposure of cells to plasmid DNA. Our results demonstrate that this modification doubled the transfection efficiency of hES cells and the generation of clonal cell lines containing a piece of foreign DNA stably inserted in their genomes compared to results obtained with standard forward transfection. In addition, treatment with dimethyl sulfoxide further increased the transfection efficiency of hES cells. In conclusion, modifications to the RT protocol of lipofection result in a significant and robust increase in the transfection efficiency of hES cells. Introduction [6,8,11–13], nucleofection [14,15], and the use of nanoparticles [16].
    [Show full text]
  • Functional Analysis of Meloidogyne Graminicola C-Type Lectins and Their Role in the Nematode – Rice Interaction
    University of Ghent Faculty of Science Department of Biology Academic year 2013 – 2015 Functional Analysis of Meloidogyne graminicola C-type Lectins and their Role in the Nematode – Rice Interaction Romnick Latina Promotor: Prof. Dr. Godelieve Gheysen Thesis submitted to obtain the degree Supervisor: Silke Nowak of Master of Science in Nematology Functional analysis of Meloidogyne graminicola C-type lectins and their role in the nematode – rice interaction Romnick LATINA Faculty of Science, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, B-9000 Ghent, Belgium Summary – Due to rice cropping intensification and increasing water scarcity, Meloidogyne graminicola has become a threat to rice production. With the aid of molecular tools and techniques, the host-nematode interaction has long been studied in the hope of finding control measures for this ominous rice root-knot nematode. In many investigations, proteins termed as effectors have been shown to mediate mechanisms and processes essential for pathogenesis of plant parasitic nematodes. Many of these effectors have been identified to unravel their functional roles. In this present work, two putative effector genes (UK41 and UK42) coding C-type lectins were investigated to know their roles in the M. graminicola - rice interaction. To gain some insights on their action site, eGFP fusion constructs were transiently expressed in N. benthamiana. Subcellular localizations revealed that UK41 localized to both the cytoplasm and nucleus while UK42 showed strong nuclear localization. To check their effect on host defenses, ETI and PTI assays were performed using transient expression in tobacco plants. Based on the R/Avr-gene pairs tested, both C-type lectins were found to be non-suppressive of the ETI.
    [Show full text]
  • Guidelines for Mirna Mimic and Mirna Inhibitor Experiments
    September 2013 Guidelines for miRNA mimic and miRNA inhibitor experiments For miRNA research Sample & Assay Technologies QIAGEN Sample and Assay Technologies QIAGEN is the leading provider of innovative sample and assay technologies, enabling the isolation and detection of contents of any biological sample. Our advanced, high-quality products and services ensure success from sample to result. QIAGEN sets standards in: Purification of DNA, RNA, and proteins Nucleic acid and protein assays microRNA research and RNAi Automation of sample and assay technologies Our mission is to enable you to achieve outstanding success and breakthroughs. For more information, visit www.qiagen.com. Contents Product Use Limitations 4 Technical Assistance 4 Safety Information 4 Introduction 5 Principle and procedure 5 Description of protocols 5 The TransFect Protocol Database 6 Optimization of miRNA experiments 6 Downstream analysis 7 Controls 8 Important Notes 14 Optimizing miRNA transfection 14 Optimizing DNA–miRNA transfection 15 Cell density at transfection 16 Transfection in multiwell plates — preparing a master mix 17 Protocol: Transfection of Adherent Cells with miRNA Mimics or miRNA Inhibitors in 24-Well Plates 18 Protocol: Reverse Transfection of Adherent Cells with miRNA Mimics or miRNA Inhibitors in 96-Well Plates 20 Protocol: Cotransfection of Adherent Cells with miRNA Mimics and miRNA Inhibitors in 24-Well Plates 22 Protocol: Cotransfection of HeLa S3 Cells with Plasmid DNA and miRNA Mimic or Inhibitor in 24-Well Plates 24 Protocol: Cotransfection of HeLa S3 Cells with Plasmid DNA and Both miRNA Mimic and miRNA Inhibitor in 24-Well Plates 26 Troubleshooting Guide 28 Appendix A: General Remarks on Handling RNA 33 References 35 Ordering Information 36 miRNA mimic and inhibitor experiments 09/2013 3 Product Use Limitations miScript products are intended for molecular biology applications.
    [Show full text]
  • Microdevice for Cell Migration Assays Using
    MICRODEVICE FOR CELL MIGRATION ASSAYS USING REVERSE-TRANSFECTION Junko Enomoto1,2, Rika Takagi1, Reiko Nagasaki 2, Hiroaki Suzuki 1, Satoshi Fujita2* and Junji Fukuda1,2* 1Graduate School of Pure and Applied Sciences, University of Tsukuba, Japan 2Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, Japan ABSTRACT A microdevice for cell migration assays using reverse-transfection (RTF) was presented. The device consisted of multiple nanoliter scale chambers, which separate individual RTF spots to prevent cross-contamination of reagents and cells among neighboring RTF spots. The microdevice was designed to use forces generated by surface tension to seed cells in the chambers in a simple manner. We demonstrated that the migration of cells was significantly suppressed by the transfection of anti-paxillin siRNA using the microdevice. This approach may provide a promising platform for robust and reliable RTF assay systems for various biological analysis applications. KEYWORDS reverse transfection; cell migration; PDMS; paxillin. INTRODUCTION Cell migration is essential for both physiological and pathological processes, including wound healing, inflammation, and cancer invasion and metastasis [1]. High-throughput screening of the genes responsible for cell migration is therefore desirable for elucidating the mechanisms underlying these processes. The reverse-transfection (RTF) technology is a microarray-driven gene expression system, in which plasmid DNA and/or siRNA previously spotted on the surface of a slide glass are reverse-transfected locally into adherent cells. This is a powerful tool for screening hundreds of functional genes [2]. However, a potential drawback is that, as the RTF spot density increases, the potential for cross-contamination of regents and cells among neighboring spots also increases [3].
    [Show full text]
  • Genecellintm Transfection Reagent Protocol
    GeneCellin TM Transfection Reagent Protocol Table of content Description ........................................................................... 3 Content ................................................................................. 3 Storage .................................................................................. 3 Certificate of quality ............................................................. 4 Parameters influencing transfection efficiency .................... 4 ● Nucleic acids purity....................................................4 ● Cell density.................................................................4 ● Presence of serum or antibiotics................................4 ● Mycoplasma contamination........................................4 Successfully transfected cells ............................................... 5 Transfection protocol ........................................................... 6 ● Principle......................................................................6 ● Cell culture.................................................................6 ● Transfection................................................................6 Optimization ......................................................................... 8 ● Cell confluency...........................................................8 ● Amount of plasmid DNA.............................................9 Other transfection procedures .............................................. 9 ● Co-transfection...........................................................9
    [Show full text]
  • Comparison of Commercial Transfection Reagents: Cell Line Optimized Transfection Kits for in Vitro Cancer Research
    Comparison of Commercial Transfection Reagents: Cell line optimized transfection kits for in vitro cancer research. by Altogen Labs, 11200 Manchaca Road, Suite 203 Austin TX 78748 USA Tel. (512) 433-6177 E-mail: [email protected] Website: www.altogenlabs.com Introduction The process of in vitro transfection involves introduction of genetic material into cells and it is generally used for mammalian cells and involves non-viral methods [1]. Various therapeutic cargo molecules can be used for intracellular delivery into cancer cell lines and primary cells, including plasmid DNA (pDNA), proteins, small molecules, messenger RNA (mRNA), shall RNA such as short interfering RNA (siRNA) and microRNA (miRNA) [2]. Altogen Biosystems developed optimized transfection technologies for a specific cell line by applying expertise in combinatorial chemistry, molecular biology, and cell biology. Transfection has been in use since the 1950s and remains a vital element in cell biology research. Transfection techniques can range from physical techniques such as electroporation to chemically mediated transfection using calcium phosphate or more advanced liposomal transfection technologies [3]. In liposomal transfection, the genetic material is contained in a liposome via mixing the material with a cationic lipid, and the liposome deposits its “cargo” into the target cell. Transfection reagents can be optimized to the target cell line and protocols for transfection can also be customized. Several advanced methodologies have emerged recently such as lipid and polymer-based carrier molecules, these compounds are capable of creating liposomes, which can fuse with the cellular membrane in order to deliver the bound RNA or DNA to the cell. Transfection: Mechanism of Action Although there is methodological diversity with transfection techniques, chemical transfection is the method most widely used in current laboratory research.
    [Show full text]
  • Establishment of an AAV Reverse Infection-Based Array
    Establishment of an AAV Reverse Infection-Based Array Xiaoyan Dong1,2., Wenhong Tian3., Gang Wang3, Zheyue Dong2, Wei Shen2, Gang Zheng2, Xiaobing Wu3, Jinglun Xue1, Yue Wang3*, Jinzhong Chen1* 1 State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Science, Fudan University, Shanghai, China, 2 Beijing FivePlus Molecular Medicine Institute, Beijing, China, 3 State Key Laboratory for Molecular Virology and Genetic Engineering, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China Abstract Background: The development of a convenient high-throughput gene transduction approach is critical for biological screening. Adeno-associated virus (AAV) vectors are broadly used in gene therapy studies, yet their applications in in vitro high-throughput gene transduction are limited. Principal Findings: We established an AAV reverse infection (RI)-based method in which cells were transduced by quantified recombinant AAVs (rAAVs) pre-coated onto 96-well plates. The number of pre-coated rAAV particles and number of cells loaded per well, as well as the temperature stability of the rAAVs on the plates, were evaluated. As the first application of this method, six serotypes or hybrid serotypes of rAAVs (AAV1, AAV2, AAV5/5, AAV8, AAV25 m, AAV28 m) were compared for their transduction efficiencies using various cell lines, including BHK21, HEK293, BEAS-2BS, HeLaS3, Huh7, Hepa1-6, and A549. AAV2 and AAV1 displayed high transduction efficiency; thus, they were deemed to be suitable candidate vectors for the RI-based array. We next evaluated the impact of sodium butyrate (NaB) treatment on rAAV vector- mediated reporter gene expression and found it was significantly enhanced, suggesting that our system reflected the biological response of target cells to specific treatments.
    [Show full text]
  • The Impact of Transfection Mediated Toxicity
    The Impact of Transfection Mediated Toxicity - Gene Expression and Cytotoxicity Analysis of Transfection Reagents Chuenchanok Khodthong, Issam Ismaili and Laura Juckem Mirus Bio LLC www.TheTransfectionExperts.com Providing gene delivery expertise since 1995 ©2012 All rights reserved Mirus Bio LLC. All trademarks are the property of their respective owners. The Impact of Transfection Mediated Toxicity – Gene Expression and Cytotoxicity Analysis of Transfection Reagents Introduction While plasmid DNA delivery is a widely used method to study cellular functions of proteins of interest, studies to identify nontoxic gene delivery reagents are limited. With the advent of high‐information content technologies, especially RT‐qPCR array, it is now possible to identify the gene expression response to a particular cellular insult. This improvement, coupled with the observation that virtually all toxic responses are accompanied by changes in gene expression, suggests that gene expression analysis has the potential to refine the identification of minimal‐toxicity transfection reagent where phenotypic responses such as altered morphology is not immediately evident. Consequently, we conducted an integrative study to explore the conventional toxicological endpoints and to identify the minimal‐ transcriptomic effects of TransIT®‐LT1, TransIT®‐2020 and Lipofectamine® 2000 Transfection Reagents using quantitative reverse transcriptase PCR (RT‐qPCR) array and pathway analysis software. Results Effect of Transfection on Cell Morphology and Viability To evaluate a role of transfection‐related toxicity, time course and dose‐dependent experiments were conducted. Hela cells were treated with various concentrations of pDNA/transfection reagent complexes for up to 24 hours. Transfection toxicity was then evaluated by morphology (Figure. 1) and by Lactate Dehydrogenase (LDH) leakage assays (Figure.
    [Show full text]
  • Hiperfect Transfection Reagent Handbook
    Fifth Edition October 2010 HiPerFect Transfection Reagent Handbook For transfection of eukaryotic cells with siRNA and miRNA Sample & Assay Technologies QIAGEN Sample and Assay Technologies QIAGEN is the leading provider of innovative sample and assay technologies, enabling the isolation and detection of contents of any biological sample. Our advanced, high- quality products and services ensure success from sample to result. QIAGEN sets standards in: I Purification of DNA, RNA, and proteins I Nucleic acid and protein assays I microRNA research and RNAi I Automation of sample and assay technologies Our mission is to enable you to achieve outstanding success and breakthroughs. For more information, visit www.qiagen.com . Contents Kit Contents 5 Shipping and Storage 5 Quality Control 5 Product Use Limitations 5 Product Warranty and Satisfaction Guarantee 6 Technical Assistance 6 Safety Information 7 Introduction 8 Principle and procedure 8 Protocols for various cell types and for special applications 10 Reagents to Be Supplied by User 13 Important Notes 14 Calculating concentrations of siRNA 14 Optimizing siRNA transfection 14 Calculating siRNA and reagent for different formats 16 Transfection in multiwell plates – preparing a master mix 17 Performing appropriate RNAi control experiments 17 Monitoring gene silencing at the mRNA or protein level 18 Protocols for adherent cells I Fast-Forward Transfection of Adherent Cells with siRNA/miRNA in 24-Well Plates 20 I Reverse Transfection of Adherent Cells with siRNA/miRNA in 96-Well Plates 22 I
    [Show full text]
  • Lipofection of Cultured Mouse Muscle Cells: a Direct Comparison of Lipofectamine and DOSPER
    Gene Therapy (1998) 5, 542–551 1998 Stockton Press All rights reserved 0969-7128/98 $12.00 http://www.stockton-press.co.uk/gt Lipofection of cultured mouse muscle cells: a direct comparison of Lipofectamine and DOSPER E Dodds1, MG Dunckley1, K Naujoks2, U Michaelis2 and G Dickson1 1Division of Biochemistry, School of Biological Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK; and 2Division of Therapeutics, Boehringer Mannheim GmbH, Penzberg, Germany Cationic lipid–DNA complexes (lipoplexes) have been (GFP) were used in order to evaluate transfection widely used as gene transfer vectors which avoid the efficiency by histochemical staining or FACS analysis, adverse immunogenicity and potential for viraemia of viral respectively. Both lipid formulations were able to promote vectors. With the long-term aim of gene transfer into skel- efficient, reproducible gene transfer in C2C12 cells, and etal muscle in vivo, we describe a direct in vitro comparison to transfect primary mouse myoblast cultures successfully. of two commercially available cationic lipid formulations, However, DOSPER exhibited the important advantage of Lipofectamine and DOSPER. Optimisation of transfection being able to transfect cells in the presence of serum of was performed in the C2C12 mouse muscle cell line, both bovine and murine origin. This feature allowed before further studies in primary mouse myoblasts and increased cell survival during in vitro transfections, and C2C12 myotubes. Reporter gene constructs expressing may be advantageous for direct in vivo gene transfer either E. coli ␤-galactosidase or green fluorescent protein efficacy. Keywords: gene transfer; lipoplex; lipofection; skeletal muscle Introduction biosafety issues and adverse immune responses have led to the development of a range of alternative, nonviral Skeletal muscle provides an excellent target for the systems, where repeated administration is possible.4 expression of recombinant genes as its structure and Some of the most promising results have come from the function are well understood.
    [Show full text]