Abstract：
:Virally based transsynaptic tracing technologies are powerful experimental tools for neuronal circuit mapping. The glycoprotein-deletion variant of the SAD-B19 vaccine strain rabies virus (RABV) has been the reagent of choice in monosynaptic tracing, since it permits the mapping of synaptic inputs to genetically marked neurons. Since its introduction, new helper viruses and reagents that facilitate complementation have enhanced the efficiency of SAD-B19(ΔG) transsynaptic transfer, but there has been little focus on improvements to the core RABV strain. Here we generate a new deletion mutant strain, CVS-N2c(ΔG), and examine its neuronal toxicity and efficiency in directing retrograde transsynaptic transfer. We find that by comparison with SAD-B19(ΔG), the CVS-N2c(ΔG) strain exhibits a reduction in neuronal toxicity and a marked enhancement in transsynaptic neuronal transfer. We conclude that the CVS-N2c(ΔG) strain provides a more effective means of mapping neuronal circuitry and of monitoring and manipulating neuronal activity in vivo in the mammalian CNS.
journal_name
Neuronjournal_title
Neuronauthors
Reardon TR,Murray AJ,Turi GF,Wirblich C,Croce KR,Schnell MJ,Jessell TM,Losonczy Adoi
10.1016/j.neuron.2016.01.004subject
Has Abstractpub_date
2016-02-17 00:00:00pages
711-24issue
4eissn
0896-6273issn
1097-4199pii
S0896-6273(16)00005-2journal_volume
89pub_type
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