Abstract：
:Optogenetic tools have opened a rich experimental landscape for understanding neural function and disease. Here, we present the first validation of eight optogenetic constructs driven by recombinant adeno-associated virus (AAV) vectors and a WGA-Cre based dual injection strategy for projection targeting in a widely-used New World primate model, the common squirrel monkey Saimiri sciureus. We observed opsin expression around the local injection site and in axonal projections to downstream regions, as well as transduction to thalamic neurons, resembling expression patterns observed in macaques. Optical stimulation drove strong, reliable excitatory responses in local neural populations for two depolarizing opsins in anesthetized monkeys. Finally, we observed continued, healthy opsin expression for at least one year. These data suggest that optogenetic tools can be readily applied in squirrel monkeys, an important first step in enabling precise, targeted manipulation of neural circuits in these highly trainable, cognitively sophisticated animals. In conjunction with similar approaches in macaques and marmosets, optogenetic manipulation of neural circuits in squirrel monkeys will provide functional, comparative insights into neural circuits which subserve dextrous motor control as well as other adaptive behaviors across the primate lineage. Additionally, development of these tools in squirrel monkeys, a well-established model system for several human neurological diseases, can aid in identifying novel treatment strategies.
journal_name
Sci Repjournal_title
Scientific reportsauthors
O'Shea DJ,Kalanithi P,Ferenczi EA,Hsueh B,Chandrasekaran C,Goo W,Diester I,Ramakrishnan C,Kaufman MT,Ryu SI,Yeom KW,Deisseroth K,Shenoy KVdoi
10.1038/s41598-018-24362-7subject
Has Abstractpub_date
2018-04-30 00:00:00pages
6775issue
1issn
2045-2322pii
10.1038/s41598-018-24362-7journal_volume
8pub_type
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