Polybrene Transduction
Polybrene Transduction - Related Videos
08:42
Dextran Enhances the Lentiviral Transduction Efficiency of Murine and Human Primary NK Cells
0 Views •
Cited by 14 •
2018
The goal of this study was to formulate technologies that allow for successful gene transduction in primary natural killer (NK) cells. The dextran-mediated lentiviral transduction of human or mouse primary NK cells results in higher gene expression efficiencies. This method of gene transduction will vastly improve NK cell genetic manipulation.
04:21
Enhancing Viral Transduction in Natural Killer Cells Using a Cationic Polymer
0 Views •
2025
This video demonstrates an assay for cationic polymer-mediated viral transduction in natural killer (NK) cells. The cells are incubated with transgenic lentivirus vectors encoding a fluorescent protein. The addition of a cationic polymer enables the virus to attach to the cells and integrate its RNA into the host genome, expressing the fluorescent protein. The fluorescence is quantified to assess the polymer-induced enhancement of transduction.
03:19
Transduction to Label PDX Tumor Cells: Introducing Lentivirus Expressing Fluorescent Marker into the Tumor Cell In Vitro
0 Views •
2023
The following video describes a technique of transduction to label (patient-derived xenografts) PDX tumor cells, which is used for introducing lentivirus expressing green-fluorescent protein and luciferase reporters into the tumor cell in vitro.
08:12
Transduction-Transplantation Mouse Model of Myeloproliferative Neoplasm
0 Views •
Cited by 5 •
2016
This manuscript provides a description of the methodology used to establish transduction-transplantation mouse models. A detailed account is given of technical errors to avoid when performing bone marrow transplants. A clear understanding should be gained of the importance of high viral titer, transfection/transduction, and irradiation.
01:16
Transduction
0 Views •
2025
Among the three main modes of HGT—transformation, conjugation, and transduction—transduction is unique in that it is mediated by bacteriophages, or bacterial viruses.Transduction occurs in two ways. Generalized transduction occurs during the lytic cycle of a bacteriophage infection. In this process, bacteriophages infect bacterial cells, replicate within them, and ultimately cause cell lysis, releasing newly assembled virions. Occasionally, random fragments of the bacterial genome are...
FAQs
The key physical effect is reduced electrostatic repulsion between negatively charged viral particles and cell membranes. This brings the particles into closer contact with the cell surface and can support entry during transduction. The resulting increase in virus-to-cell contact helps explain why polybrene can improve delivery efficiency in cultured neural cells, including neurons.
Neural cells can respond differently to polybrene concentration and exposure, so increasing either variable does not guarantee a better outcome. Optimization balances the desired improvement in viral delivery against cellular responses that may reduce experimental quality. This consideration is especially important when comparing cultures or interpreting differences in transduction efficiency across neuronal preparations.
The vector type determines the genetic delivery context in which polybrene is applied. Lentiviral or retroviral vectors can be used when researchers seek stable gene expression, while the polymer supports the delivery step by promoting contact with cultured cells. Thus, polybrene serves as an efficiency-enhancing component rather than the source of the genetic payload or experimental manipulation.
Researchers should establish conditions for polybrene concentration and exposure that are appropriate for the specific cultured cells and viral delivery system. Because cellular responses vary, a condition that improves transduction in one neuronal preparation may not produce the same result in another. This optimization directly affects how reliably the intended genetic material reaches the cells.
In neuroscience, this approach is useful when viral vectors must deliver genes for stable expression, neuronal labeling, or experimental manipulation. Improved delivery can support studies of neuronal development, signaling, connectivity, and disease-related changes. Its value is greatest when efficient genetic access to cultured neural cells is necessary for observing or altering a defined cellular process.
More efficient delivery can make it easier to obtain neuronal populations with the intended genetic modification, label cells, or apply a targeted experimental manipulation. Researchers can then examine consequences for development, signaling, connectivity, or disease-related changes. Interpretation still requires attention to the optimized polybrene conditions, because variable cellular responses can influence the observed outcome.