Retroviral Infection
Retroviral Infection - Related Videos
09:19
Recombinant Retroviral Production and Infection of B Cells
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Cited by 2 •
2011
An efficient system of structure and function analysis of a gene in an ex vivo culture of splenic B-lymphocytes is described. This method takes advantage of recombinant retroviral production in a helper free, ecotrophic packaging cell line. Stable, heritable expression of a gene of interest within primary lymphocytes is achieved leading to generation of surface antibodies on B cells undergoing class switch recombination.
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...
04:59
Retroviral-Mediated Transduction: A Method to Introduce Target Gene into Cancer Cells
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2023
This video describes the protocol for genetic validation by transferring target genes using retroviruses in chronic myeloid leukemia cell lines. The retroviruses act as a mediator to transfer genetic material into the leukemia cell through the process called transduction, which enables long term expression of target gene.This method can be applied to any target cells for genetic validation and therapeutic development.
03:36
Production of Retroviral Particles for Gene Transfer
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2026
Source: Zjablovskaja, P., et al., Proliferation and Differentiation of Murine Myeloid Precursor 32D/G-CSF-R Cells. J. Vis. Exp. (2018)This video demonstrates the production of recombinant retroviral particles by transfecting human kidney-derived packaging cells, enabling stable gene delivery to target cells for downstream applications such as genetic modification, functional assays, or lineage differentiation studies.
09:18
A Video Protocol of Retroviral Infection in Primary Intestinal Organoid Culture
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Cited by 40 •
2014
This protocol explains primary Lgr5-positve organoid culture and the subsequent performance of retroviral transduction. This enables Cre-inducible overexpression or knockdown of the delivered transgene and allows functional studies to be carried out in the novel in vitro organotypic model system.
FAQs
These enzymes perform different but connected genetic steps. Reverse transcriptase converts the viral RNA template into DNA, creating a form that can persist within the cell. Integrase then inserts that DNA into a host chromosome, producing a provirus. Studying their separate roles helps explain how retroviral genetic information becomes linked to host-cell DNA.
Once viral DNA has been inserted into a host chromosome, it exists as a provirus within the cell’s genetic material. Host transcription can later generate viral RNA from this integrated DNA, supporting production of viral proteins and new particles. This connection between viral DNA and the chromosome helps researchers investigate how infections persist and influence host-cell function.
Integration does not complete the viral life cycle by itself. The host cell transcribes the integrated viral DNA to produce viral RNA, and cellular machinery contributes to producing viral proteins. These components then support particle assembly and budding from the cell membrane, making host-cell activity central to the generation of new retroviral particles.
A useful investigation can trace the sequence from viral entry through reverse transcription, chromosomal integration, host transcription, protein production, assembly, and budding. Examining these stages separately clarifies when viral RNA becomes DNA, when that DNA becomes a provirus, and how cellular processes ultimately support formation of new viral particles.
The infection process contains distinct molecular events, including RNA-to-DNA conversion and insertion of viral DNA into a host chromosome. Because these steps are carried out by identifiable viral mechanisms, they provide a framework for investigating how antiviral drugs might affect replication. The resulting analysis connects viral life-cycle biology with strategies for limiting production of new particles.
Understanding how retroviruses enter cells, use host machinery, and generate persistent genetic forms provides biological context for vaccine design. The same principles also support retroviral vectors, which are used in gene-delivery research. Studying these systems helps researchers relate viral replication and host-cell interaction to controlled applications involving the delivery of genetic material.