Cited by 74Ion Channels and ReceptorsPain Mechanisms and TreatmentsTactile and Sensory Interactions

Neuronal diversity in the somatosensory system: bridging the gap between cell type and function

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Gatto, Graziana, Smith, Kelly Megan, Ross, Sarah Elizabeth, Goulding, Martyn·2019·Current Opinion in Neurobiology

Abstract

A recent flurry of genetic studies in mice have provided key insights into how the somatosensory system is organized at a cellular level to encode itch, pain, temperature, and touch. These studies are largely predicated on the idea that functional cell types can be identified by their unique developmental provenance and gene expression profile. However, the extent to which gene expression profiles can be correlated with functional cell types and circuit organization remains an open question. In this review, we focus on recent progress in characterizing the sensory afferent and dorsal horn neuron cell types that process cutaneous somatosensory information and ongoing circuit studies that are beginning to bridge the divide between cell type and function.

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Crossref · 10.1016/j.conb.2019.03.002

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  • Organoid neurons were reminiscent of NC-derived neurons found in cranial or dorsal root ganglia, with medium-large soma NEFH+PRPH+ neurons and smaller soma NEFH−PRPH+ neurons.

    “The organoid neurons were reminiscent of NC-derived neurons found in cranial or dorsal root ganglia, with medium-large soma Neurofilament-Heavy Chain (NEFH)+ Peripherin (PRPH)+ neurons and smaller soma NEFH−PRPH+ neurons (Fig. 3o, Supplementary Video 7)23,31.”

    From Hair-bearing human skin generated entirely from pluripotent stem cells (2020) · cites this paper as [31]

    The “Sensory afferent heterogeneity” section describes neural-crest-derived trigeminal and dorsal root ganglion sensory neurons as having similar molecularly defined types. It mentions neurofilament as a historical sensory-afferent marker, but does not describe the claimed NEFH/PRPH combinations or their association with soma size. The organoid observations are the citing authors’ own results, not findings reported by this source. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The most salient neuronal morphology was consistent with NEFH+ pseudounipolar neurons, reminiscent of Aβ/δ-LTMRs or proprioceptors.

    “The most salient neuronal morphology was consistent with NEFH+ pseudounipolar neurons, reminiscent of Aβ/δ-LTMRs or proprioceptors (Fig. 3m, n)31.”

    From Hair-bearing human skin generated entirely from pluripotent stem cells (2020) · cites this paper as [31]

    The “Sensory afferent heterogeneity” section (page unavailable) discusses neurofilament as a historical marker for skin afferents and identifies Aβ- and Aδ-LTMR populations. It does not describe NEFH+ pseudounipolar morphology or link that morphology to LTMRs or proprioceptors; the claim’s specific morphological identification is therefore unsupported by this copy. (LLM, conf=0.73)

    Experimental — accuracy not yet measured
  • In large ganglia (>10 neurons), a subset of Parvalbumin (PVALB)+ neuron somas was identified, indicative of proprioceptors.

    “In large ganglia (>10 neurons), we identified a subset of Parvalbumin (PVALB)+ neuron somas, indicative of proprioceptors (Extended Data Fig. 7j)31.”

    From Hair-bearing human skin generated entirely from pluripotent stem cells (2020) · cites this paper as [31]

    The sensory-afferent heterogeneity section discusses ganglion sensory-neuron types, and the cellular-diversity section mentions proprioceptive transmission, but neither links PVALB-positive somas to proprioceptors. Searches for parvalbumin, PVALB and proprioceptors found no passage establishing that identification. The observation in large ganglia is the citing authors’ own result, not a finding attributed to this review. (LLM, conf=0.72)

    Experimental — accuracy not yet measured

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Authors
Gatto, G., Smith, K. M., Ross, S. E., & Goulding, M.
Affiliations
  • Salk Institute for Biological Studies (US)
  • University of Pittsburgh (US)
Corresponding author
  • Ross, Sarah Elizabeth
  • Goulding, Martyn
Venue
Current Opinion in Neurobiology
Publisher
Elsevier BV
Published
2019-06
Volume
56
Pages
167-174
ISSN
0959-4388 (ISSN-L)
OpenAlex
W2935076193
Cited by
74
References
56
Citations by year
2026: 5 · 2025: 5 · 2024: 6 · 2023: 8 · 2022: 7 · 2021: 22 · 2020: 16 · 2019: 5
FWCI
2.16
Type
journal article
Language
en
Open access
Locations
  • Current Opinion in Neurobiology (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • N.I.H. (NS080586, NS086372, AR063772, NS 096705)
  • EMBO (ALTF 13-2015)
  • Salk Women in Science
  • DSF Charitable Foundation
Topics
  • Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
Keywords
somatosensory system, dorsal horn neurons, neuronal cell types, pruritus, pain, thermosensation, touch, skin sensation, gene expression profiles, mouse genetics
MeSH terms
Animals, Neurons, Pain, Pruritus, Touch

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