Genetic Modification
Genetic Modification - Related Videos
11:44
Targeted Microinjection and Electroporation of Primate Cerebral Organoids for Genetic Modification
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Cited by 5 •
2023
The electroporation of primate cerebral organoids provides a precise and efficient approach to introduce transient genetic modification(s) into different progenitor types and neurons in a model system close to primate (patho)physiological neocortex development. This allows the study of neurodevelopmental and evolutionary processes and can also be applied for disease modeling.
04:07
Genetic Modification of Primary Human Keratinocytes: A Method for Genetically Manipulating Keratinocytes Using Recombinant Retroviruses
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2023
This video describes a detailed protocol for producing genetically modified primary human keratinocytes recombinant retrovirus. This method can be used to manipulate gene expression in keratinocytes.
04:12
Stereotaxic Injection of Viruses for Stable Genetic Modification in a Mouse Model
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2025
Source: Porlan, E., et al. Stable and Efficient Genetic Modification of Cells in the Adult Mouse V-SVZ for the Analysis of Neural Stem Cell Autonomous and Non-autonomous Effects. J. Vis. Exp. (2016)This video demonstrates stable genetic modification of neural stem cells (NSCs) in the ventricular-subventricular zone (V-SVZ) through stereotaxic injection of a virus-carrying therapeutic gene in a mouse model. The virus enters NSCs, undergoes reverse transcription, integrates into the genome, and...
09:29
Genetic Modification and Recombination of Salivary Gland Organ Cultures
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Cited by 20 •
2013
A technique to genetically manipulate epithelial cells within whole ex vivo cultured embryonic mouse submandibular glands (SMGs) using viral gene transfer is described. This method takes advantage of the innate ability of SMG epithelium and mesenchyme to spontaneously recombine after separation and infection of epithelial rudiments with adenoviral vectors.
02:32
Histone Modification
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2020
The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression. Acetylation The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
FAQs
CRISPR-based systems guide molecular tools toward defined DNA sequences. After targeting, they can direct cellular repair or influence gene expression, allowing researchers to connect a planned sequence-level change with a biological function or trait. This targeting capability is important in engineering because it supports deliberate modification of selected genetic regions.
Recombinant DNA methods and CRISPR-based systems support genetic modification through different design routes. Recombinant DNA methods are presented as ways to introduce genetic material, whereas CRISPR systems can target defined sequences and direct cellular repair or gene expression. The distinction matters when choosing between adding genetic material and making a targeted sequence-level change.
Changing gene expression can alter how genetic information is used without being limited to simply introducing or removing DNA. Because expression is linked to biological function, directing it provides a way to influence specific traits or cellular behaviors. In molecular engineering, this connection helps researchers relate a genetic change to the performance of an engineered biological system.
Genetic modification gives molecular engineers a way to investigate gene function while optimizing biological systems. By linking deliberate DNA changes with altered traits or functions, researchers can study how biological components contribute to system behavior. This supports the design of microorganisms, plants, and engineered cells for research, biotechnology, and other development goals.
A high-level workflow begins by identifying the desired trait or biological function, followed by selecting an appropriate strategy such as recombinant DNA or a CRISPR-based system. Researchers then introduce, remove, or edit DNA and use cellular repair or gene expression mechanisms to produce the intended effect. The resulting organism or cell can be considered against the original engineering objective.
The overview identifies several major targets. Microorganisms can be designed to produce useful compounds, plants can be modified for improved characteristics, and engineered cells can support research or therapeutic development. These examples show how the same molecular engineering principles can be adapted to different biological systems and practical objectives.
Its applications span multiple fields because genetic changes can be connected to traits, biological functions, or useful production capabilities. In biotechnology, engineered organisms may produce compounds; in medicine, engineered cells support therapeutic development; and in agriculture, modified plants may have improved characteristics. The approach also contributes to environmental applications and biological system optimization.