Dna-based Vectors
Dna-based Vectors - Related Videos
13:10
DNA Vector-based RNA Interference to Study Gene Function in Cancer
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Cited by 26 •
2012
RNA interference (RNAi) possesses many advantages over gene knockout and has been broadly used as a tool in gene functional studies. The invention of DNA vector-based RNAi technology has made long term and inducible gene knockdown possible, and also increased the feasibility of gene silencing in vivo.
02:27
DNA Base Pairing
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2020
Erwin Chargaff’s rules on DNA equivalence paved the way for the discovery of base pairing in DNA. Chargaff’s rules state that in a double-stranded DNA molecule, the amount of adenine (A) is equal to the amount of thymine (T); the amount of guanine (G) is equal to the amount of cytosine (C); and the sum of purines, A and G, is equal to the sum of pyrimidines, C and T (i.e., A+G = C+T). Later work by Watson and Crick revealed that in double-stranded DNA, A always forms two hydrogen bonds...
12:59
High-throughput CRISPR Vector Construction and Characterization of DNA Modifications by Generation of Tomato Hairy Roots
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Cited by 37 •
2016
Using DNA assembly, multiple CRISPR vectors can be constructed in parallel in a single cloning reaction, making the construction of large numbers of CRISPR vectors a simple task. Tomato hairy roots are an excellent model system to validate CRISPR vectors and generate mutant materials.
21:55
Engineering and Evolution of Synthetic Adeno-Associated Virus (AAV) Gene Therapy Vectors via DNA Family Shuffling
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Cited by 35 •
2012
We demonstrate the basic technique to molecularly engineer and evolve synthetic Adeno-associated viral (AAV) gene therapy vectors via DNA family shuffling. Moreover, we provide general guidelines and representative examples for selection and analysis of individual chimeric capsids with enhanced properties on target cells in culture or in mice.
04:35
Cesium Chloride-Based Purification of Genome-Containing 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 purification of high-capacity adenoviral vectors using cesium chloride gradient ultracentrifugation, enabling the separation of genome-containing virions for applications in gene delivery, vector characterization, and preclinical therapeutic...
FAQs
Promoters are central control elements because they regulate transcription of the inserted sequence. Once the delivered DNA reaches a target cell, the cell’s own machinery reads the sequence under promoter control and generates RNA or protein. Thus, vector design must connect the selected genetic cargo with regulatory elements that support the intended expression experiment.
Several linked variables shape whether a DNA-based vector produces a useful result. Vector design establishes the genetic and regulatory arrangement, antigen selection determines what microbial or immune-related product is examined, and delivery method affects cellular uptake. These factors should be considered together, because a suitable sequence alone may not yield informative expression if target cells do not receive the DNA effectively.
In infection studies, the inserted sequence can be chosen to represent either a microbial antigen or an immune regulator. An antigen supports investigation of how host cells respond to a pathogen-associated target, whereas an immune regulator allows researchers to examine effects of modifying immune-related activity. This choice links the vector’s molecular output to a specific host-pathogen question.
A typical experimental workflow begins by selecting the genetic sequence relevant to the biological question, arranging it with regulatory elements such as a promoter, and choosing a delivery method. After introducing the construct to target cells, investigators consider cellular uptake and examine the resulting RNA or protein. This sequence connects vector construction with measurable gene-function or response studies.
Delivery method and cellular uptake influence whether the genetic material reaches the intended target cells, which in turn affects whether the inserted sequence can be expressed. For this reason, delivery is not merely a logistical step; it is an experimental variable. Interpreting RNA or protein outcomes requires considering how efficiently the cells received the vector.
Expression from a DNA-based vector can connect a chosen genetic sequence with measurable changes in gene function or biological responses. In immunology and infection research, this helps investigators examine how cells respond to microbial antigens or immune regulators and how those responses relate to host-pathogen interactions. The resulting RNA or protein therefore serves as an experimental readout of the selected construct.
Their ability to express selected microbial antigens makes DNA-based vectors useful for evaluating vaccine candidates in infection research. The same platform can also express immune regulators, supporting investigation of potential therapeutic strategies rather than only preventive ones. These applications depend on successful vector design, antigen or regulator selection, delivery, and uptake, so biological interpretation must account for each stage.