Cited by 234Neuroscience and Neuropharmacology ResearchMotor Control and AdaptationRobotic Locomotion and Control

V1 and V2b Interneurons Secure the Alternating Flexor-Extensor Motor Activity Mice Require for Limbed Locomotion

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Zhang, Jingming, Lanuza, Guillermo M., Britz, Olivier, Wang, Zhi, Siembab, Valerie C., Zhang, Ying, Velasquez, Tomoko, Alvarez, Francisco J. +2 more·2014·Neuron

Abstract

Reciprocal activation of flexor and extensor muscles constitutes the fundamental mechanism that tetrapod vertebrates use for locomotion and limb-driven reflex behaviors. This aspect of motor coordination is controlled by inhibitory neurons in the spinal cord; however, the identity of the spinal interneurons that serve this function is not known. Here, we show that the production of an alternating flexor-extensor motor rhythm depends on the composite activities of two classes of ventrally located inhibitory neurons, V1 and V2b interneurons (INs). Abrogating V1 and V2b IN-derived neurotransmission in the isolated spinal cord results in a synchronous pattern of L2 flexor-related and L5 extensor-related locomotor activity. Mice lacking V1 and V2b inhibition are unable to articulate their limb joints and display marked deficits in limb-driven reflex movements. Taken together, these findings identify V1- and V2b-derived neurons as the core interneuronal components of the limb central pattern generator (CPG) that coordinate flexor-extensor motor activity.

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Crossref · 10.1016/j.neuron.2014.02.013

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  • Ventral inhibitory neurons (V1 and V2b neurons), which are located downstream to SCVsx2::Hoxa10 neurons, were prioritized in specific comparisons involving the long-term recovery of walking following EESREHAB.

    “For example, ventral inhibitory neurons (V1 and V2b neurons49,50), which are located downstream to SCVsx2::Hoxa10 neurons, were prioritized in specific comparisons involving the long-term recovery of walking following EESREHAB.”

    From The neurons that restore walking after paralysis (2022) · cites this paper as [49]

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Authors
Zhang, J., Lanuza, G. M., Britz, O., Wang, Z., Siembab, V. C., Zhang, Y., Velasquez, T., Alvarez, F. J., Frank, E., & Goulding, M.
Affiliations
  • Salk Institute for Biological Studies (US)
  • Tufts University (US)
  • Wright State University (US)
Corresponding author
Goulding, Martyn
Venue
Neuron
Publisher
Elsevier BV
Published
2014-04
Volume
82
Issue
1
Pages
138-150
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2080030366
Cited by
233
References
67
Citations by year
2026: 11 · 2025: 22 · 2024: 21 · 2023: 22 · 2022: 21 · 2021: 18 · 2020: 15 · 2019: 17 · 2018: 24 · 2017: 18 · 2016: 18 · 2015: 20 · 2014: 6
FWCI
9.44
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Journal of Bioresource Management (submittedVersion, cc-by)
  • CONICET Digital (CONICET) (submittedVersion, cc-by-nc-sa)
Funders
  • National Institutes of Health
  • Simons Institute for the Theory of Computing, University of California Berkeley
  • National Institute of Neurological Disorders and Stroke (P01NS031249, R37NS037075, P01NS057228, R56NS047357, R01NS080586, R01NS047357)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Physical Sciences › Engineering › Biomedical Engineering › Robotic Locomotion and Control
Keywords
spinal interneurons, inhibitory neurotransmission, tetrapod locomotion
MeSH terms
Action Potentials, Animals, Animals, Newborn, Cholera Toxin, Embryo, Mammalian, Extremities, Interneurons, Functional Laterality, Locomotion, Mice, Transgenic, Motor Activity, Mutation, Neural Inhibition, Reflex, Spinal Cord, Tail, Neurotransmitter Agents, Muscle, Skeletal, Mice

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