Cited by 70Genetics and Neurodevelopmental DisordersCholesterol and Lipid MetabolismLipoproteins and Cardiovascular Health

Scavenger receptor B1 post-translational modifications in Rett syndrome

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Sticozzi, Claudia, Belmonte, Giuseppe, Pecorelli, Alessandra, Cervellati, Franco, Leoncini, Silvia, Signorini, Cinzia, Ciccoli, Lucia, De Felice, Claudio +2 more·2013·FEBS Letters

Abstract

The modulation of the HDL receptor scavenger receptor B1 (SRB1) was evaluated in skin fibroblasts isolated from patients with Rett syndrome (RTT), a genetic form of infantile autism. Patients showed an altered plasma lipid profile, while their skin fibroblasts showed a dramatic reduction in SRB1 (immunogold, Western blot and immunohistochemistry). The decreased SRB1 levels were demonstrated to be the consequence of its binding with 4‐hydroxy‐2‐nonenal (4HNE), a product of lipid peroxidation, and its increased ubiquitination. Our findings show for the first time a loss of SRB1 in RTT cells and its relationship with a chronic oxidative stress status.

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Crossref · 10.1016/j.febslet.2013.05.042

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  • Only a subset of RTT patients exhibit increased serum cholesterol and/or triglycerides.

    “Consistently, only a subset of RTT patients exhibit increased serum cholesterol and/or triglycerides [15,16,173].”

    From Rett syndrome: a neurological disorder with metabolic components (2018) · cites this paper as [173]

    Section 3.1 and Table 1 report higher mean total cholesterol in RTT patients than in controls. Table 1 shows no increase in mean triglycerides, and the paper does not report how many individual patients had elevated cholesterol or triglycerides. It therefore supports the cholesterol finding but not the claim that only a subset of patients had either elevation. (LLM, conf=0.84)

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  • The first report linking RTT to cholesterol metabolism demonstrated enhanced levels of plasma total cholesterol, LDL-cholesterol and HDL-cholesterol in RTT patients, whereas no significant change was observed in the amount of total triglycerydes.

    “The first report linking RTT to cholesterol metabolism demonstrated enhanced levels of plasma total cholesterol, LDL (low density lipoprotein)-cholesterol and HDL (High density lipoprotein)-cholesterol in RTT patients, whereas no significant change was observed in the amount of total triglycerydes [102], suggesting that dysbalance in plasma lipid profile is restricted to cholesterol metabolism.”
  • A strong reduction of scavenger receptor class B type 1 (SR-B1) expression was reported in fibroblasts derived from RTT patients.

    “In addition, the authors reported a strong reduction of scavenger receptor class B type 1 (SR-B1) expression in fibroblasts derived from RTT patients.”

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Authors
Sticozzi, C., Belmonte, G., Pecorelli, A., Cervellati, F., Leoncini, S., Signorini, C., Ciccoli, L., De Felice, C., Hayek, J., & Valacchi, G.
Affiliations
  • University of Ferrara (IT)
  • University of Siena (IT)
Corresponding author
Valacchi, Giuseppe
Venue
FEBS Letters
Publisher
Wiley
Published
2013-05-24
Volume
587
Issue
14
Pages
2199-2204
ISSN
  • 0014-5793 (ISSN-L)
  • 1873-3468
OpenAlex
W1980378211
Cited by
70
References
31
Citations by year
2026: 1 · 2025: 5 · 2024: 6 · 2023: 8 · 2022: 4 · 2021: 6 · 2020: 3 · 2019: 6 · 2018: 2 · 2017: 6 · 2016: 4 · 2015: 3 · 2014: 10 · 2013: 5
FWCI
4.87
Type
journal article
Language
en
Open access
Locations
  • FEBS Letters (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Research Information System University of Ferrara (University of Ferrara) (submittedVersion, other-oa)
  • Use Siena air (University of Siena) (submittedVersion)
Funders
Regione Toscana
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
Keywords
Rett syndrome, scavenger receptor class B type I, post-translational modification, 4-hydroxynonenal, lipid peroxidation, ubiquitination, oxidative stress, HDL receptor, plasma lipid profile, dermal fibroblasts, infantile autism
MeSH terms
Adolescent, Adult, Aldehydes, Cells, Cultured, Child, Female, Fibroblasts, Humans, Lipids, Lipid Peroxidation, Rett Syndrome, Case-Control Studies, Oxidative Stress, Scavenger Receptors, Class B, Ubiquitination, Young Adult

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