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通过斑马鱼转基因技术鉴定小鼠Sox10基因座处的神经嵴和神经胶质增强子。

Identification of neural crest and glial enhancers at the mouse Sox10 locus through transgenesis in zebrafish.

作者信息

Antonellis Anthony, Huynh Jimmy L, Lee-Lin Shih-Queen, Vinton Ryan M, Renaud Gabriel, Loftus Stacie K, Elliot Gene, Wolfsberg Tyra G, Green Eric D, McCallion Andrew S, Pavan William J

机构信息

Genome Technology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, United States of America.

出版信息

PLoS Genet. 2008 Sep 5;4(9):e1000174. doi: 10.1371/journal.pgen.1000174.


DOI:10.1371/journal.pgen.1000174
PMID:18773071
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2518861/
Abstract

Sox10 is a dynamically regulated transcription factor gene that is essential for the development of neural crest-derived and oligodendroglial populations. Developmental genes often require multiple regulatory sequences that integrate discrete and overlapping functions to coordinate their expression. To identify Sox10 cis-regulatory elements, we integrated multiple model systems, including cell-based screens and transposon-mediated transgensis in zebrafish, to scrutinize mammalian conserved, noncoding genomic segments at the mouse Sox10 locus. We demonstrate that eight of 11 Sox10 genomic elements direct reporter gene expression in transgenic zebrafish similar to patterns observed in transgenic mice, despite an absence of observable sequence conservation between mice and zebrafish. Multiple segments direct expression in overlapping populations of neural crest derivatives and glial cells, ranging from pan-Sox10 and pan-neural crest regulatory control to the modulation of expression in subpopulations of Sox10-expressing cells, including developing melanocytes and Schwann cells. Several sequences demonstrate overlapping spatial control, yet direct expression in incompletely overlapping developmental intervals. We were able to partially explain neural crest expression patterns by the presence of head to head SoxE family binding sites within two of the elements. Moreover, we were able to use this transcription factor binding site signature to identify the corresponding zebrafish enhancers in the absence of overall sequence homology. We demonstrate the utility of zebrafish transgenesis as a high-fidelity surrogate in the dissection of mammalian gene regulation, especially those with dynamically controlled developmental expression.

摘要

Sox10是一种动态调控的转录因子基因,对于神经嵴衍生细胞和少突胶质细胞群体的发育至关重要。发育基因通常需要多个调控序列,这些序列整合离散和重叠的功能以协调其表达。为了鉴定Sox10顺式调控元件,我们整合了多种模型系统,包括基于细胞的筛选和斑马鱼中转座子介导的转基因技术,以仔细研究小鼠Sox10基因座处的哺乳动物保守非编码基因组片段。我们证明,11个Sox10基因组元件中的8个在转基因斑马鱼中指导报告基因表达,其模式类似于在转基因小鼠中观察到的模式,尽管小鼠和斑马鱼之间没有可观察到的序列保守性。多个片段在神经嵴衍生物和神经胶质细胞的重叠群体中指导表达,范围从泛Sox10和泛神经嵴调控控制到Sox10表达细胞亚群(包括发育中的黑素细胞和施万细胞)中表达的调节。几个序列显示出重叠的空间控制,但在不完全重叠的发育间隔中指导表达。我们能够通过其中两个元件中存在的头对头SoxE家族结合位点来部分解释神经嵴表达模式。此外,我们能够利用这种转录因子结合位点特征在缺乏整体序列同源性的情况下鉴定相应的斑马鱼增强子。我们证明了斑马鱼转基因技术作为一种高保真替代方法在剖析哺乳动物基因调控(特别是那些具有动态控制的发育表达的基因调控)中的实用性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/08c6a792131c/pgen.1000174.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/c0d312fa2e00/pgen.1000174.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/6e315b6b7e28/pgen.1000174.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/a41c05432933/pgen.1000174.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/c12295e02611/pgen.1000174.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/64ee8d4ea336/pgen.1000174.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/08c6a792131c/pgen.1000174.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/c0d312fa2e00/pgen.1000174.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/6e315b6b7e28/pgen.1000174.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/a41c05432933/pgen.1000174.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/c12295e02611/pgen.1000174.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/64ee8d4ea336/pgen.1000174.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62d7/2518861/08c6a792131c/pgen.1000174.g006.jpg

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[3]
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Int J Mol Sci. 2024-5-11

[4]
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J Exp Zool B Mol Dev Evol. 2024-3

[5]
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Biomolecules. 2022-10-18

[6]
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[7]
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[8]
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[9]
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[10]
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本文引用的文献

[1]
Metrics of sequence constraint overlook regulatory sequences in an exhaustive analysis at phox2b.

Genome Res. 2008-2

[2]
Multiple conserved regulatory elements with overlapping functions determine Sox10 expression in mouse embryogenesis.

Nucleic Acids Res. 2007

[3]
Deletion of ultraconserved elements yields viable mice.

PLoS Biol. 2007-9

[4]
Human GLI3 intragenic conserved non-coding sequences are tissue-specific enhancers.

PLoS One. 2007-4-11

[5]
Evaluating the biological relevance of putative enhancers using Tol2 transposon-mediated transgenesis in zebrafish.

Nat Protoc. 2006

[6]
A direct role for Sox10 in specification of neural crest-derived sensory neurons.

Development. 2006-12

[7]
Distant regulatory elements in a Sox10-beta GEO BAC transgene are required for expression of Sox10 in the enteric nervous system and other neural crest-derived tissues.

Dev Dyn. 2006-5

[8]
Conservation of RET regulatory function from human to zebrafish without sequence similarity.

Science. 2006-4-14

[9]
Direct regulation of myelin protein zero expression by the Egr2 transactivator.

J Biol Chem. 2006-3-3

[10]
Deletion of long-range sequences at Sox10 compromises developmental expression in a mouse model of Waardenburg-Shah (WS4) syndrome.

Hum Mol Genet. 2006-1-15

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