Cited by 50Connective tissue disorders researchDermatological and Skeletal DisordersTGF-β signaling in diseases

GLUT10 deficiency leads to oxidative stress and non-canonical αvβ3 integrin-mediated TGFβ signalling associated with extracellular matrix disarray in arterial tortuosity syndrome skin fibroblasts

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Zoppi, Nicoletta, Chiarelli, Nicola, Cinquina, Valeria, Ritelli, Marco, Colombi, Marina·2015·Human Molecular Genetics

Abstract

Arterial tortuosity syndrome (ATS) is an autosomal recessive connective tissue disorder caused by loss-of-function mutations in SLC2A10, which encodes facilitative glucose transporter 10 (GLUT10). The role of GLUT10 in ATS pathogenesis remains an enigma, and the transported metabolite(s), i.e. glucose and/or dehydroascorbic acid, have not been clearly elucidated. To discern the molecular mechanisms underlying the ATS aetiology, we performed gene expression profiling and biochemical studies on skin fibroblasts. Transcriptome analyses revealed the dysregulation of several genes involved in TGFβ signalling and extracellular matrix (ECM) homeostasis as well as the perturbation of specific pathways that control both the cell energy balance and the oxidative stress response. Biochemical and functional studies showed a marked increase in ROS-induced lipid peroxidation sustained by altered PPARγ function, which contributes to the redox imbalance and the compensatory antioxidant activity of ALDH1A1. ATS fibroblasts also showed activation of a non-canonical TGFβ signalling due to TGFBRI disorganization, the upregulation of TGFBRII and connective tissue growth factor, and the activation of the αvβ3 integrin transduction pathway, which involves p125FAK, p60Src and p38 MAPK. Stable GLUT10 expression in patients' fibroblasts normalized redox homeostasis and PPARγ activity, rescued canonical TGFβ signalling and induced partial ECM re-organization. These data add new insights into the ATS dysregulated biological pathways and definition of the pathomechanisms involved in this disorder.

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Crossref · 10.1093/hmg/ddv382

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  • More than 90% of cEDS patients harbor a heterozygous mutation in one of the genes encoding type V collagen (COL5A1 and COL5A2).

    “Morethan 90% of cEDS patients harbor a heterozygous mutation in one of the genes encoding type V collagen ( COL5A1 and COL5A2 ) [Symoens et al., 2012; Ritelli et al., 2013; Zoppi et al., 2015]”

    From The 2017 international classification of the Ehlers–Danlos syndromes (2017) · cites this paper as Zoppi et al., 2015

    The Materials and Methods section describes patients with arterial tortuosity syndrome and SLC2A10 mutations, while the Results discuss type V collagen organization in their fibroblasts. Searches for cEDS, COL5A1/COL5A2, and the >90% figure found no passage addressing the claimed mutation frequency in cEDS patients. Page numbers were not available in our copy. (LLM, conf=0.76)

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  • Our protein data indicated the disorganization of the core proteins of PGs perlecan, versican, and DCN, and their abnormal organization could contribute to the defective COLLIII fibril assembly in vEDS cells, as well as to the defective fibrillogenesis of other COLLs.

    “Our protein data indicated the disorganization of the core proteins of PGs perlecan, versican, and DCN, which enhance COLL fibril formation [26], and their abnormal organization could contribute to the defective COLLIII fibril assembly in vEDS cells, as well as to the defective fibrillogenesis of other COLLs previously described in skin fibroblasts of different EDS types and in other connective”

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Authors
Zoppi, N., Chiarelli, N., Cinquina, V., Ritelli, M., & Colombi, M.
Affiliations
University of Brescia (IT)
Corresponding author
Colombi, Marina
Venue
Human Molecular Genetics
Published
2015-09-16
Volume
24
Issue
23
Pages
6769-6787
ISSN
  • 0964-6906 (ISSN-L)
  • 1460-2083
OpenAlex
W2113237914
Cited by
50
References
78
Citations by year
2026: 3 · 2025: 1 · 2024: 5 · 2023: 6 · 2022: 5 · 2021: 3 · 2020: 6 · 2019: 7 · 2018: 6 · 2017: 4 · 2016: 3 · 2015: 1
FWCI
3.19
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Human Molecular Genetics (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Institutional Research Information System (Università degli Studi di Brescia) (submittedVersion, other-oa)
Funders
Telethon Foundation (GGP13167)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Connective tissue disorders research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Dermatological and Skeletal Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
Keywords
arterial tortuosity syndrome, GLUT10, SLC2A10, glucose transporters, oxidative stress, TGF-beta signaling, integrin αvβ3, extracellular matrix, dermal fibroblasts, connective tissue growth factor, PPARγ, ALDH1A1, lipid peroxidation, redox homeostasis, p38 MAPK, p125FAK, p60src, connective tissue diseases
MeSH terms
Arteries, Extracellular Matrix, Fibroblasts, Homeostasis, Humans, Joint Instability, Mutation, Skin, Skin Diseases, Genetic, Signal Transduction, Transforming Growth Factor beta, Oxidative Stress, Gene Expression Profiling, Integrin alphaVbeta3, Glucose Transport Proteins, Facilitative, Vascular Malformations

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