Lentivirus Microinjection

Lentivirus microinjection is a gene-delivery technique that introduces lentiviral vectors directly into selected tissues, enabling targeted manipulation of cells in neuroscience research. A fine needle deposits the vector into a defined brain region, where viral particles enter nearby cells, reverse-transcribe their genetic payload, and integrate it into the host genome for sustained transgene expression. Researchers use this approach to express proteins, silence genes, label neuronal populations, or modify neural circuits with spatial precision. By linking genetic manipulation to specific brain areas, lentivirus microinjection supports studies of neuronal function, connectivity, disease mechanisms, and potential therapeutic strategies.

Lentivirus Microinjection - Related Videos

Research

JoVE Journal - Biology

Lentivirus Production

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Cited by 54 •

2009

To make lentiviruses, DNA vectors are transfected into human 293 cells. After harvest and concentrating the supernatant, virus titer is determined by fluorescence expression with a flow cytometer.

Lentivirus-mediated Genetic Manipulation and Visualization of Olfactory Sensory Neurons in vivo

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Cited by 7 •

2011

We present a lentiviral technique for genetic manipulation and visualization of single olfactory sensory neuron axon and its terminal arborization in vivo.

Education

JoVE Science Education - Basic Biology

Zebrafish Microinjection Techniques

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2023

One of the major advantages to working with zebrafish (Danio rerio) is that their genetics can be easily manipulated by microinjection of early stage embryos. Using this technique, solutions containing genetic material or knockdown constructs are delivered into the blastomeres: the embryonic cells sitting atop the yolk of the newly fertilized egg. Delivery into the cytoplasm is achieved either through direct injection into the blastomere, or via natural cytoplasmic movements that occur after a...

Human Pluripotent Stem Cell Differentiation in Neurons Using Engineered Lentiviruses

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2025

This video demonstrates the process of inducing human pluripotent stem cells to differentiate into neurons by transfecting them with engineered lentiviruses carrying a neurogenic transcription factor gene under the control of tetracycline-responsive element, followed by treatment with a tetracycline derivative and maturation medium.

Embryo Microinjection for Transgenesis in Drosophila

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2024

This article takes the phiC31 integrase-mediated transgenesis in Drosophila as an example and presents an optimized protocol for embryo microinjection, a crucial step for creating transgenic flies.

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