Abstract
The injection of therapies into the eye is common practice, both clinically and pre-clinically. The most straightforward delivery route is via an intravitreal injection, which introduces the treatment into the largest cavity at the posterior of the eye. This technique is frequently used to deliver gene therapies, including those containing recombinant adeno-associated viral vectors (AAVs), to the back of the eye to enable inner retinal targeting. This chapter provides detailed methodology on how to successfully perform an intravitreal injection in mice. The chapter covers vector preparation considerations, advice on how to minimize vector loss in the injection device, and ways to reduce vector reflux from the eye when administering a therapy. Finally, a protocol is provided on common retinal histology processing techniques to assess vector-mediated expression in retinal ganglion cells. It is hoped that this chapter will enable researchers to carry out effective and consistent intravitreal injections that transduce the inner retinal surface while avoiding common pitfalls.
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Acknowledgments
Bart Nieuwenhuis is supported by the Medical Research Council (MR/V002694/1) in the form of a postdoctoral research associate position. Andrew Osborne is supported by Ikarovec Limited. We thank Andrea Loreto, Fiona Love, and Yamunadevi Lakshmanan for proofreading and Laura Vaux, Emily Warner, and Kara Boyd for anesthetic support and imaging.
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Nieuwenhuis, B., Osborne, A. (2023). Intravitreal Injection of AAV for the Transduction of Mouse Retinal Ganglion Cells. In: Mead, B. (eds) Retinal Ganglion Cells. Methods in Molecular Biology, vol 2708. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-3409-7_17
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