Cited by 19Pain Mechanisms and TreatmentsConnective tissue disorders researchIon Channels and Receptors

The DOI matches its Crossref record; 57 of the 58 references it cites were found in a registry or an index.

Pain-related behaviors and abnormal cutaneous innervation in a murine model of classical Ehlers-Danlos syndrome

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Abstract

Classical Ehlers–Danlos syndrome (cEDS) is a connective tissue disorder caused by heterozygous mutations in one of the type V collagen-encoding genes,COL5A1 or COL5A2. cEDS is characterized by generalized joint hypermobility and instability, hyperextensible, fragile skin, and delayed wound healing. Chronic pain is a major problem in cEDS patients, but the underlying mechanisms are largely unknown, and studies in animal models are lacking. Therefore, we assessed pain-related behaviors in haploinsufficient Col5a1+/−mice, which clinically mimic human cEDS. Compared to wild-type (WT) littermates, 15 to 20-week-old Col5a1+/−mice of both sexes showed significant hypersensitivity to mechanical stimuli in the hind paws and the abdominal area, but responses to thermal stimuli were unaltered. Spontaneous behaviors, including distance travelled and rearing, were grossly normal in male Col5a1+/−mice, whereas female Col5a1+/−mice showed altered climbing behavior. Finally, male and female Col5a1+/−mice vocalized more than WT littermates when scruffed. Decreased grip strength was also noted. In view of the observed pain phenotype,Col5a1+/−mice were crossed with Na V 1.8-tdTomato reporter mice, enabling visualization of nociceptors in the glabrous skin of the footpad. We observed a significant decrease in intraepidermal nerve fiber density, with fewer nerves crossing the epidermis, and a decreased total nerve length of Col5a1+/−mice compared to WT. In summary, male and female Col5a1+/−mice show hypersensitivity to mechanical stimuli, indicative of generalized sensitization of the nervous system, in conjunction with an aberrant organization of cutaneous nociceptors. Therefore,Col5a1+/−mice will provide a useful tool to study mechanisms of pain associated with cEDS.

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Crossref · 10.1097/j.pain.0000000000001935

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Metadata

Authors
Syx, D., Miller, R. E., Obeidat, A. M., Tran, P. B., Vroman, R., Malfait, Z., Miller, R. J., Malfait, F., & Malfait, A.-M.
Affiliations
  • Rush University Medical Center (US)
  • Northwestern University (US)
  • Ghent University (BE)
Corresponding author
Malfait, Anne-Marie
Venue
Pain
Published
2020-05-29
Volume
161
Issue
10
Pages
2274-2283
ISSN
  • 0304-3959 (ISSN-L)
  • 1872-6623
OpenAlex
W3029033779
Cited by
19
References
58
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 5 · 2022: 3 · 2021: 3 · 2020: 2
FWCI
1.96
Type
journal article
Language
en
Open access
Locations
  • Pain (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion, other-oa)
Funders
  • Rush University
  • Fonds Wetenschappelijk Onderzoek (12Q5917N, 3G041519, 1842318N)
  • Universiteit Gent (BOFMET2015000401)
  • Vlaamse regering
  • National Institutes of Health
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (K01AR070328, T32AR073157, R01AR064251, R01AR060364)
Topics
  • Health Sciences › Medicine › Physiology (medical) › Pain Mechanisms and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Connective tissue disorders research
  • Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
Keywords
classical Ehlers-Danlos syndrome, COL5A1, type V collagen, chronic pain, mechanical hypersensitivity, thermal sensitivity, nociceptors, intraepidermal nerve fibers, skin innervation, sex differences, vocalizations, grip strength, connective tissue diseases
MeSH terms
Animals, Disease Models, Animal, Ehlers-Danlos Syndrome, Female, Male, Mutation, Pain, Skin, Collagen Type V, Mice

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