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Advances in optogenetic and chemogenetic methods to study brain circuits in non-human primates

  • Neurology and Preclinical Neurological Studies - Review Article
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Abstract

Over the last 10 years, the use of opto- and chemogenetics to modulate neuronal activity in research applications has increased exponentially. Both techniques involve the genetic delivery of artificial proteins (opsins or engineered receptors) that are expressed on a selective population of neurons. The firing of these neurons can then be manipulated using light sources (for opsins) or by systemic administration of exogenous compounds (for chemogenetic receptors). Opto- and chemogenetic tools have enabled many important advances in basal ganglia research in rodent models, yet these techniques have faced a slow progress in non-human primate (NHP) research. In this review, we present a summary of the current state of these techniques in NHP research and outline some of the main challenges associated with the use of these genetic-based approaches in monkeys. We also explore cutting-edge developments that will facilitate the use of opto- and chemogenetics in NHPs, and help advance our understanding of basal ganglia circuits in normal and pathological conditions.

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Fig. 1

(Figure modified with permission from Galvan et al. 2016)

Fig. 2

(Figure reproduced with permission from Dimidschstein et al. 2016)

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Acknowledgements

This work was supported through grants from NIH/NINDS R01-NS083386, P50-NS098685 (Udall Center of Excellence for Parkinson’s Disease Research), and NIH/ORIP to the Yerkes Center (P51 OD011132).

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Correspondence to Adriana Galvan.

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Galvan, A., Caiola, M.J. & Albaugh, D.L. Advances in optogenetic and chemogenetic methods to study brain circuits in non-human primates. J Neural Transm 125, 547–563 (2018). https://doi.org/10.1007/s00702-017-1697-8

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  • DOI: https://doi.org/10.1007/s00702-017-1697-8

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