Ad5f35pp65 Vector Transduction
Ad5f35pp65 Vector Transduction - Related Videos
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Source: Hiller, T., et al. Study of Viral Vectors in a Three-dimensional Liver Model Repopulated with the Human Hepatocellular Carcinoma Cell Line HepG2. J. Vis. Exp., (2016)This video demonstrates adeno-associated virus-mediated gene delivery in a humanized rat liver scaffold. The vector delivers a transgene encoding a fluorescent reporter and gene-silencing RNA into liver cells via receptor-mediated endocytosis. This model supports efficient transduction in a perfused 3D liver tissue system.
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Evaluation of 3D Spheroids for AAV Transduction Studies
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Three-dimensional spheroid culture systems improve upon conventional 2D models for AAV gene therapy development. This methodology enables sensitive detection of AAV transduction at low doses, enhanced physiological relevance, and robust long-term monitoring. The platform supports potency assessment, high-throughput screening, and vector optimization across diverse cell lines and AAV serotypes.
FAQs
Its type 35 fiber changes the attachment properties of the adenovirus type 5 backbone. This configuration can support interaction with CD46, a cellular receptor expressed by susceptible target cells, and thereby influence vector entry after exposure. The altered tropism is important when researchers select cells for antigen-delivery experiments or interpret differences in transduction across cell populations.
CD46 provides a receptor context that can facilitate attachment and internalization of the recombinant vector. Consequently, cellular CD46 expression may influence whether target cells receive the pp65 gene and how efficiently antigen expression can be established. In immunology studies, this relationship helps connect vector entry with subsequent antigen presentation and measurement of pp65-specific cellular responses.
Following internalization, the delivered pp65 gene is expressed in the target cell without requiring productive adenoviral replication. This distinction allows investigators to generate the cytomegalovirus antigen as an experimental stimulus while studying immune recognition separately from a replicating infection. The resulting antigen expression supports controlled evaluation of antiviral T-cell activity and antigen-presentation behavior.
Cells expressing pp65 can provide antigen for recognition by pp65-specific T cells, allowing investigators to examine cellular immune responses against a defined cytomegalovirus target. The system therefore links gene delivery to functional immunological readouts rather than relying only on viral replication. It can help evaluate antigen presentation and characterize antiviral responses in controlled experimental settings.
A study generally centers on exposing selected target cells to the recombinant vector, allowing intracellular pp65 expression, and then assessing the resulting immune response. The relevant outcome is the relationship between antigen delivery and pp65-specific T-cell activity. Exact handling conditions are not specified here, so experimental protocols must define the cell type, exposure design, and response measurements separately.
This approach is useful when investigators need a controlled source of cytomegalovirus pp65 antigen for studying antiviral immunity. It can support experiments measuring pp65-specific T-cell responses, examining antigen presentation, or evaluating vaccine and cellular-immunotherapy concepts. Because antigen expression does not require productive vector replication, the system separates delivery of the immune target from replication-dependent infection processes.
pp65 expression creates a defined antigenic context for testing whether immune cells recognize and respond to cytomegalovirus-derived material. Depending on the assay, researchers can use that context to investigate antigen presentation or quantify pp65-specific T-cell responses. These observations provide functional information about antiviral cellular immunity and can inform development of immune-based interventions.
The vector provides a way to deliver a cytomegalovirus antigen to target cells for controlled immune evaluation. In vaccine research, that property can support assessment of induced antiviral responses; in cellular immunotherapy research, it can help test recognition of pp65-expressing cells. Its value lies in connecting defined antigen expression with measurable T-cell activity and presentation outcomes.