Lipofectamine® LTX Reagent offers a streamlined protocol—no need to remove transfection complexes or change/add medium following transfection. A simple. Lipofectamine LTX® Reagent is a proprietary, animal-origin free formulation for the or contact Technical Services for other specialized transfection protocols. protocol applicable to Invitrogen products, as set forth below (the “Protocol”). by adding 50 μL of Lipofectamine™ LTX to μL of Opti-MEM® medium.

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Biotechnol Prog ; Progress in developing cationic vectors for non-viral systemic gene therapy against cancer.

An electroporation protocol for efficient DNA transfection in PC12 cells.

DNA ratios were tested, but no clear association with transfection efficiency was detected data not shown. Infect Immun ; Biol Pharm Bull ; Abstract Primary cells, such as HUVEC, are notoriously difficult to transfect and are susceptible to the toxic effects of transfection reagents.

Cytokines Mol Ther ; 2: National Center lipotectamine Biotechnology InformationU. Transfer and expression of foreign genes in mammalian cells. Mol Ther ; An equal volume of PLUS reagent was added. The length of incubation prior to analysis made a difference in four of the nine reagents tested, and higher expression levels were detected after 48 h compared with 24 h Fig.

An electroporation protocol for efficient DNA transfection in PC12 cells.

Regulatory considerations for novel gene therapy products: It has been reported that some cationic liposome transfection reagents could lead to autofluorescence in fluorescent microscopy and flow cytometry analysis, 38 but our results for mock transfection using Lipofectamine and Lipofectamine LTX showed no autofluorescence. Cell viability after transfection. Cells were incubated for 3 h, after which, the complexes were replaced with complete medium.



Footnotes There are no financial support or associations that would pose a conflict of interest. Complexes were added to the cells containing 2 mL complete medium and incubated. Bioconjug Chem ; Welsh S, Kay SA.

Lipofectamine LTX was identified as the optimal transfection reagent as a result of its higher transfection efficiency lipofetcamine shorter periods of time following transfection when cytotoxicity was limited, allowing sufficient yield of transfected HUVEC for use in subsequent assays. L—L [ PubMed ].

Importantly, dead cells lipofectamihe to detach from the growth surface and thus, were not analyzed in this study. On the other hand, luciferase activity, detected via conversion of a substrate, resulting in amplified signal, determines the behavior of the entire population, thereby losing information about single cells.

Gene Ther ; Cells can be gene-modified in vitro and in vivo using physical, viral, or chemical methods.

Kinase domain insert containing receptor promoter lipofechamine suicide gene system selectively kills human umbilical vein endothelial cells. Author information Copyright and License information Disclaimer. Each point represents a different ratio of reagent: Curr Drug Deliv ; 1: Our study demonstrated that a small selection of commercially available chemical transfection reagents was able to transfer exogenous genes efficiently to primary human cells.


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Transfection efficiencies, according to the proportion of EGFP-expressing cells measured by flow cytometry Fig. Comparison of the efficiency and safety of non-viral vector-mediated gene transfer into a wide range of human cells. Biochim Biophys Acta ; Mock transfection data showed no difference in cell death at 24 h versus 48 h, i.

The gated region for cell debris or necrosis is indicated, as well as the percentage of dead cells according to this lipofctamine. This led to an underestimation of the total amount of cell death caused by prptocol but a more accurate representation of the number of live cells and proportion of EGFP-expressing cells left to plate out for subsequent assays. Where a ratio was tested more than once, the mean transfection efficiency is plotted.

Endothelial cell transfection with cationic liposomes and herpes simplex-thymidine kinase mediated killing. Cardiovasc Drugs Ther ; For three of the reagents Effectene, Escort IV, and ExGenthe final amount of DNA played a role in transfection efficiency, with more DNA in the mixture associated with increased transfection efficiency results not shown.

A number of reasons have been considered to explain these differences.