A device for stereotaxic viral delivery into the brains of neonatal mice

Autor: Pedro R Olivetti, Clay O Lacefield, Christoph Kellendonk
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: BioTechniques, Vol 69, Iss 4, Pp 307-312 (2020)
Druh dokumentu: article
ISSN: 1940-9818
0736-6205
DOI: 10.2144/btn-2020-0050
Popis: The increasing interest in manipulating neural circuits in developing brains has created a demand for reliable and accurate methods for delivering viruses to newborn mice. Here we describe a novel 3D-printed mouse neonatal stereotaxic adaptor for intracerebral viral injection that provides enhanced precision and reliability. Using this device, we injected A2a-Cre mice with a Cre-dependent hM4D-mCherry viral construct at postnatal day 1 (P1) and demonstrated selective expression in the striatal indirect pathway neurons on days P7, P11 and P25. Similarly, dopaminergic midbrain neurons were selectively targeted with a Cre-dependent green fluorescent protein virus in Dat-IRES-Cre neonates and expression examined at P25. Our open-source neonatal stereotaxic mouse adaptor facilitates neonatal neuronal targeting, which should improve the ability to label and modify neural circuits in developing mouse brains.
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