Modular interneuron circuits control motion sensitivity in the mouse retina

Andrew Jo, Sercan Deniz, Suraj Cherian, Jian Xu, Daiki Futagi, Steven H. DeVries and Yongling Zhu ()
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Andrew Jo: Northwestern University
Sercan Deniz: Northwestern University
Suraj Cherian: Northwestern University
Jian Xu: Northwestern University
Daiki Futagi: Northwestern University
Steven H. DeVries: Northwestern University
Yongling Zhu: Northwestern University

Nature Communications, 2023, vol. 14, issue 1, 1-17

Abstract: Abstract Neural computations arise from highly precise connections between specific types of neurons. Retinal ganglion cells (RGCs) with similar stratification patterns are positioned to receive similar inputs but often display different response properties. In this study, we used intersectional mouse genetics to achieve single-cell type labeling and identified an object motion sensitive (OMS) AC type, COMS-AC(counter-OMS AC). Optogenetic stimulation revealed that COMS-AC makes glycinergic synapses with the OMS-insensitive HD2p-RGC, while chemogenetic inactivation showed that COMS-AC provides inhibitory control to HD2p-RGC during local motion. This local inhibition, combined with the inhibitory drive from TH2-AC during global motion, explains the OMS-insensitive feature of HD2p-RGC. In contrast, COMS-AC fails to make synapses with W3(UHD)-RGC, allowing it to exhibit OMS under the control of VGlut3-AC and TH2-AC. These findings reveal modular interneuron circuits that endow structurally similar RGC types with different responses and present a mechanism for redundancy-reduction in the retina to expand coding capacity.

Date: 2023
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DOI: 10.1038/s41467-023-43382-0

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