Retrovirus Transduction
Retrovirus Transduction - Related Videos
02:33
Retroviruses
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2020
Retroviruses and retrotransposons both insert copies of their genetic elements into the genome of the host cell. Thus, the viral genes are passed on when the host genome is replicated or translated. A typical retroviral DNA sequence contains 3-4 genes that encode the different proteins required for its structural assembly and function as a molecular parasite. This DNA is transcribed into a single mRNA, which is very similar in structure to conventional mRNAs, i.e., it is capped at the 5’...
01:10
Retrovirus Life Cycles
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2019
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the retrovirus to...
01:51
Mechanisms of Retrovirus-induced Cancers
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2021
Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...
14:03
Transduction of Human Cells with Polymer-complexed Ecotropic Lentivirus for Enhanced Biosafety
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Cited by 8 •
2011
Lentiviruses are a valuable research tool for exploring gene function; however, researchers may wish to avoid production of pantropic lentivirus encoding known or suspected oncogenes. As an alternative, we present a safer protocol for use of ecotropic lentivirus on human cells modified to express the ecotropic receptor mSlc7a1.
10:14
Retroviral Transduction of T-cell Receptors in Mouse T-cells
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Cited by 21 •
2010
We present a protocol to produce antigen-specific mouse T-cells using retroviral...
FAQs
The key molecular transition is reverse transcription, which converts the retroviral RNA genome into DNA after entry into the target cell. This DNA form can then serve as the substrate for integration into the host genome. Once integrated, the delivered sequence becomes accessible to the cell’s own transcription machinery, linking viral entry to sustained genetic activity.
Integrase inserts the reverse-transcribed viral DNA into the host genome. This step establishes the physical connection between the delivered genetic material and the recipient cell’s chromosomes, allowing the inserted sequence to remain associated with the cell’s genetic material. Its activity therefore supports the stable expression that distinguishes this approach from transient delivery of genetic material.
Stable integration allows expression of a delivered sequence to continue as an immune cell divides, rather than being limited to a short period in the original cell. This persistence supports controlled gene perturbation and the development of engineered immune-cell models. It also helps researchers examine cellular responses over extended experimental periods within immunology and infection studies.
By delivering a selected genetic sequence into immune cells, the approach enables researchers to alter cellular gene activity in a controlled experimental system. They can then examine how that change affects immune-cell behavior or responses relevant to infection. Stable expression is particularly useful when the perturbation must remain present across cell divisions during the investigation.
Researchers can use genetically modified immune cells to test how particular cellular changes influence host-pathogen interactions. Because the delivered sequence can remain active after integration, experiments can follow the consequences of a defined perturbation within an engineered cell context. This provides a way to connect altered host-cell genetics with observed infection-related responses.
Engineered cell models provide a controlled setting in which researchers can study gene function, immune responses, or infection-related processes. Retroviral delivery supports these models by introducing genetic material and maintaining expression through cell divisions. Such systems are also relevant to therapeutic development, where researchers need to evaluate genetically modified cells or sustained gene activity.