Evidence map›Paper›PMID 32668316›Full record

ReviewJournal of neuroscience methods2020

Using rAAV2-retro in rhesus macaques: Promise and caveats for circuit manipulation.

Adriana K Cushnie, Hala G El-Nahal, Martin O Bohlen, Paul J May, Michele A Basso, Piercesare Grimaldi, Maya Zhe Wang, Marron Fernandez de Velasco Ezequiel, Marc A Sommer, Sarah R Heilbronner

Open access · greenAbstract readReview
In one paragraph

Review in Journal of neuroscience methods, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 45 citations in OpenAlex.

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  5. Neuropixels reveal laminar microcircuit organization in monkey V1 in vivo.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  9. Neuropixels reveal structure-function relationships in monkey V1bioRxiv : the preprint server for biology · 2025
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  15. Review
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  18. Optogenetics in primate cortical networks.Frontiers in neuroanatomy · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 1 country.

Adriana K CushnieDepartment of Neuroscience, University of Minnesota, Minneapolis, MN 55455, United States.
Hala G El-NahalDepartment of Biomedical Engineering, Duke University, Durham, NC 27708, United States.
Martin O BohlenDepartment of Biomedical Engineering, Duke University, Durham, NC 27708, United States.
Paul J MayDepartment of Neurobiology and Anatomical Sciences, University of Mississippi Medical Center, Jackson, 39216, United States.
Michele A BassoFuster Laboratory of Cognitive Neuroscience, Department of Psychiatry and Biobehavioral Sciences and Neurobiology, Jane and Terry Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, Univ. of California Los Angeles, Los Angeles, CA 90095, United States.
Piercesare GrimaldiFuster Laboratory of Cognitive Neuroscience, Department of Psychiatry and Biobehavioral Sciences and Neurobiology, Jane and Terry Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, Univ. of California Los Angeles, Los Angeles, CA 90095, United States.
Maya Zhe WangDepartment of Neuroscience, University of Minnesota, Minneapolis, MN 55455, United States.
Marron Fernandez de Velasco EzequielDepartment of Pharmacology, University of Minnesota, Minneapolis, MN 55455, United States.
Marc A SommerDepartment of Biomedical Engineering, Duke University, Durham, NC 27708, United States; Department of Neurobiology, Duke University School of Medicine, Durham, NC 27708, United States; Center for Cognitive Neuroscience, Duke University, Durham, NC 27708, United States.
Sarah R HeilbronnerDepartment of Neuroscience, University of Minnesota, Minneapolis, MN 55455, United States. Electronic address: heilb028@umn.edu.
University of Minnesota · USDuke University · USUniversity of California, Los Angeles · USUniversity of Mississippi Medical Center · US

Funding

WaNPRC Macaca nemestrina SPF Breeding ColonyU42OD011123 · OD · UNIVERSITY OF WASHINGTON · PI CHARLOTTE HOTCHKISS · 2012 to 2026
$34.4M
NEUROSCIENCE TRAINING IN DRUG ABUSE RESEARCHT32DA007234 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI Paul G Mermelstein, Jocelyn M Richard · 1986 to 2026
$10.9M
Visual Target Selection for Saccadic Eye MovementsR01EY013692 · NEI · UNIVERSITY OF WISCONSIN-MADISON · PI BASSO, MICHELE A · 2002 to 2021
$7.0M
MIDBRAIN CIRCUITRY FOR NEURONAL CONTROL OF GAZER01EY014263 · NEI · UNIVERSITY OF MISSISSIPPI MEDICAL CENTER · PI GAMLIN, PAUL DOUGLAS, MAY, PAUL J · 2003 to 2018
$5.2M
Neuromuscular Control of Primate Eye MovementsR21EY030278 · NEI · DUKE UNIVERSITY · PI SOMMER, MARC A · 2019 to 2020
$429k
Visual Target Selection for Saccadic Eye MovementsR56EY013692 · NEI · UNIVERSITY OF WISCONSIN-MADISON · PI BASSO, MICHELE A · 2007 to 2007
$352k
NEI NIH HHS R01 EY013692NEI NIH HHS R01 EY014263NEI NIH HHS R21 EY030278NEI NIH HHS R56 EY013692NIDA NIH HHS T32 DA007234NIH HHS U42 OD011123
6 · The paper itself

Abstract

backgroundRecent genetic technologies such as opto- and chemogenetics allow for the manipulation of brain circuits with unprecedented precision. Most studies employing these techniques have been undertaken in rodents, but a more human-homologous model for studying the brain is the nonhuman primate (NHP). Optimizing viral delivery of transgenes encoding actuator proteins could revolutionize the way we study neuronal circuits in NHPs. NEW

methodrAAV2-retro, a popular new capsid variant, produces robust retrograde labeling in rodents. Whether rAAV2-retro's highly efficient retrograde transport would translate to NHPs was unknown. Here, we characterized the anatomical distribution of labeling following injections of rAAV2-retro encoding opsins or DREADDs in the cortico-basal ganglia and oculomotor circuits of rhesus macaques.

resultsrAAV2-retro injections in striatum, frontal eye field, and superior colliculus produced local labeling at injection sites and robust retrograde labeling in many afferent regions. In every case, however, a few brain regions with well-established projections to the injected structure lacked retrogradely labeled cells. We also observed robust terminal field labeling in downstream structures. COMPARISON WITH EXISTING METHOD(S): Patterns of labeling were similar to those obtained with traditional tract-tracers, except for some afferent labeling that was noticeably absent.

conclusionsrAAV2-retro promises to be useful for circuit manipulation via retrograde transduction in NHPs, but caveats were revealed by our findings. Some afferently connected regions lacked retrogradely labeled cells, showed robust axon terminal labeling, or both. This highlights the importance of anatomically characterizing rAAV2-retro's expression in target circuits in NHPs before moving to manipulation studies.

Indexed as

BrainNeuronsAnimalsCentral Nervous SystemMacaca mulattaTransgenesChemogeneticsDREADDsNonhuman primateOptogeneticsrAAV2-retro

Identifiers

PMID32668316
PMCPMC7539563
OpenAlexW3040815514

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.