Adenoviral Gene Expression
Adenoviral Gene Expression - Related Videos
10:34
Using an Automated Cell Counter to Simplify Gene Expression Studies: siRNA Knockdown of IL-4 Dependent Gene Expression in Namalwa Cells
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Cited by 2 •
2010
This procedure describes a quick and easy workflow to introduce siRNA into difficult to transfect cell lines and follow gene expression by real-time PCR. Use of an automated cell counter, multi-well electroporation plate, and automated electrophoresis station provide quick and reliable results without the need for expensive robotic handling.
03:20
Large-Scale Production of High-Capacity Adenoviral Vectors
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2026
Source: Ehrke-Schulz, E., et al. Cloning and Large-Scale Production of High-Capacity Adenoviral Vectors Based on the Human Adenovirus Type 5. J. Vis. Exp. (2016)This video demonstrates the large-scale amplification of high-capacity adenoviral vectors in suspension-adapted human embryonic kidney cells expressing Cre recombinase for use in gene delivery applications requiring high-titer, helper-free vector preparations.
01:42
What is Gene Expression?
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2019
Overview Gene expression is the process in which DNA directs the synthesis of functional products, that is, proteins. Cells can regulate gene expression at various stages. It allows organisms to generate different cell types and enables cells to adapt to internal and external factors. Genetic Information Flows from DNA to RNA to Protein A gene is a stretch of DNA that serves as the blueprint for functional RNAs and proteins. Since DNA is made up of nucleotides and proteins consist of amino...
12:30
Vascular Gene Transfer from Metallic Stent Surfaces Using Adenoviral Vectors Tethered through Hydrolysable Cross-linkers
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Cited by 12 •
2014
These studies report on reversible attachment of adenoviral gene vectors to coatless metal surfaces of stents and model mesh disks. Sustained release of transduction-competent viral particles contingent upon hydrolysis of cross-linkers used for vector immobilization results in a durable site-specific transgene expression in vascular cells and in stented arteries.
16:59
Neo-Islet Formation in Liver of Diabetic Mice by Helper-dependent Adenoviral Vector-Mediated Gene Transfer
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Cited by 5 •
2012
We describe hepatic neo-islet formation in STZ (streptozotocin)-induced diabetic mice by gene transfer of Neurogenin3 (Ngn3) and Betacellulin (Btc) using helper-dependent adenoviral vector (HDAd) and the reversal of hyperglycemia. Our method takes advantages of helper-dependent adenoviral vectors with their highly efficient in vivo transduction and the long lasting gene expression.
FAQs
Adenoviral gene expression follows a timed program. After the genome reaches the nucleus, host RNA polymerase first transcribes early genes. Their products regulate the cell and viral replication. Later, transcription produces late genes encoding structural proteins. This sequence connects genome delivery with the regulated production of viral components during infection.
Receptor-mediated entry and endosomal escape are essential transitions before transcription can begin. Entry permits adenovirus to access the cell, while escape allows the viral genome to proceed toward the nucleus. Once nuclear delivery occurs, host RNA polymerase can transcribe viral information, so these earlier steps determine whether the downstream expression program can proceed.
During natural infection, early gene products regulate the cell and viral replication, while late gene products encode structural proteins. Replication-defective adenoviral vectors modify these viral functions so that an inserted gene is expressed rather than infectious virus being produced. This distinction supports gene delivery while separating payload expression from production of infectious virus.
A conceptual workflow begins with receptor-mediated entry, followed by endosomal escape and movement of the viral genome to the nucleus. Researchers can then consider host RNA polymerase transcription of early genes or, with a recombinant vector, expression of the inserted gene. In the infection program, later transcription produces structural proteins, organizing observations by biological stage.
Transient, high-level expression provides a strong but temporary readout of an inserted gene or viral genetic program. Because the expression occurs over a defined period, it suits experiments that examine gene function, evaluate gene delivery, or test gene-based therapeutic concepts. This profile is especially relevant when the experimental outcome depends on detectable expression during that period.
The system supports several research uses, including studying gene function, developing vaccines, and testing gene-based therapies. In biology, it helps connect viral genome delivery with host-cell transcription and the sequence of early and late gene activity. In applied research, recombinant vectors provide a way to express an inserted gene without producing infectious virus.