Cited by 73Genetics and Neurodevelopmental DisordersEpigenetics and DNA MethylationNeurobiology and Insect Physiology Research

Genetic modifiers of MeCP2 function in Drosophila

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Cukier, Holly N., Perez, Alma M., Collins, Ann L., Zhou, Zhaolan, Zoghbi, Huda Y., Botas, Juan·2008·PLoS Genetics

Abstract

The levels of methyl-CpG-binding protein 2 (MeCP2) are critical for normal post-natal development and function of the nervous system. Loss of function of MeCP2, a transcriptional regulator involved in chromatin remodeling, causes classic Rett syndrome (RTT) as well as other related conditions characterized by autism, learning disabilities, or mental retardation. Increased dosage of MeCP2 also leads to clinically similar neurological disorders and mental retardation. To identify molecular mechanisms capable of compensating for altered MeCP2 levels, we generated transgenic Drosophila overexpressing human MeCP2. We find that MeCP2 associates with chromatin and is phosphorylated at serine 423 in Drosophila, as is found in mammals. MeCP2 overexpression leads to anatomical (i.e., disorganized eyes, ectopic wing veins) and behavioral (i.e., motor dysfunction) abnormalities. We used a candidate gene approach to identify genes that are able to compensate for abnormal phenotypes caused by MeCP2 increased activity. These genetic modifiers include other chromatin remodeling genes (Additional sex combs, corto, osa, Sex combs on midleg, and trithorax), the kinase tricornered, the UBE3A target pebble, and Drosophila homologues of the MeCP2 physical interactors Sin3a, REST, and N-CoR. These findings demonstrate that anatomical and behavioral phenotypes caused by MeCP2 activity can be ameliorated by altering other factors that might be more amenable to manipulation than MeCP2 itself.

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Authors
Cukier, H. N., Perez, A. M., Collins, A. L., Zhou, Z., Zoghbi, H. Y., & Botas, J.
Affiliations
  • Baylor College of Medicine (US)
  • Boston Children's Hospital (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Botas, Juan
Venue
PLoS Genetics
Published
2008-09-05
Volume
4
Issue
9
Pages
e1000179
ISSN
  • 1553-7390 (ISSN-L)
  • 1553-7404
OpenAlex
W2034911119
Cited by
73
References
58
Citations by year
2026: 2 · 2025: 6 · 2024: 1 · 2022: 1 · 2021: 2 · 2020: 6 · 2019: 3 · 2018: 3 · 2017: 2 · 2016: 9 · 2015: 5 · 2014: 7 · 2013: 3 · 2012: 5
FWCI
3.43
Type
journal article
Language
en
Open access
Locations
  • PLoS Genetics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
  • Howard Hughes Medical Institute
  • University of Minnesota
  • National Institutes of Health (5f31gm067501-02)
  • National Institute of General Medical Sciences (1 F31 GM067501-01A1, F31 GM067501, HD024064)
  • National Institute of Neurological Disorders and Stroke (NS042179, NS057819, R00NS058391, R01NS042179, K99NS058391, R56NS042179, R01NS057819)
  • National Institute of Child Health and Human Development (HD024064)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD 024064, P30HD024064)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
Keywords
MeCP2, Rett syndrome, genetic modifiers, Drosophila, chromatin remodeling, UBE3A, pebbles, trithorax, obstructive sleep apnea, SIN3A, rest, NCoR, motor impairment, autism spectrum disorder, intellectual disability
MeSH terms
Animals, Chromatin, Drosophila, Humans, Microscopy, Electron, Scanning, Phenotype, Phosphorylation, Serine, Animals, Genetically Modified, Methyl-CpG-Binding Protein 2

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