Quantitative profiling of brain lipid raft proteome in a mouse model of fragile X syndrome.
Quantitative profiling of brain lipid raft proteome in a mouse model of fragile X syndrome.
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DOI:
10.1371/journal.pone.0121464
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Francesconi A
中科院分区:
文献类型:
--
作者:
Kalinowska M;Castillo C;Francesconi A
Fragile X Syndrome, a leading cause of inherited intellectual disability and autism, arises from transcriptional silencing of the FMR1 gene encoding an RNA-binding protein, Fragile X Mental Retardation Protein (FMRP). FMRP can regulate the expression of approximately 4% of brain transcripts through its role in regulation of mRNA transport, stability and translation, thus providing a molecular rationale for its potential pleiotropic effects on neuronal and brain circuitry function. Several intracellular signaling pathways are dysregulated in the absence of FMRP suggesting that cellular deficits may be broad and could result in homeostatic changes. Lipid rafts are specialized regions of the plasma membrane, enriched in cholesterol and glycosphingolipids, involved in regulation of intracellular signaling. Among transcripts targeted by FMRP, a subset encodes proteins involved in lipid biosynthesis and homeostasis, dysregulation of which could affect the integrity and function of lipid rafts. Using a quantitative mass spectrometry-based approach we analyzed the lipid raft proteome of Fmr1 knockout mice, an animal model of Fragile X syndrome, and identified candidate proteins that are differentially represented in Fmr1 knockout mice lipid rafts. Furthermore, network analysis of these candidate proteins reveals connectivity between them and predicts functional connectivity with genes encoding components of myelin sheath, axonal processes and growth cones. Our findings provide insight to aid identification of molecular and cellular dysfunctions arising from Fmr1 silencing and for uncovering shared pathologies between Fragile X syndrome and other autism spectrum disorders.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1007/978-3-7091-0932-8_3
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期刊:
SYNAPTIC PLASTICITY: DYNAMICS, DEVELOPMENT AND DISEASE
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DOI:
10.1523/jneurosci.0402-10.2010
发表时间:
2010-08-11
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
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DOI:
10.1073/pnas.1019386108
发表时间:
2011-08-30
影响因子:
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作者:
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通讯作者:
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