Cited by 120RNA Research and SplicingRNA regulation and diseaseCancer-related molecular mechanisms research

Functional coordination of alternative splicing in the mammalian central nervous system

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Fagnani, Matthew, Barash, Yoseph, Ip, Joanna Y, Misquitta, Christine, Pan, Qun, Saltzman, Arneet L, Shai, Ofer, Lee, Leo +9 more·2007·Genome Biology

Abstract

Background: Alternative splicing (AS) functions to expand proteomic complexity and plays numerous important roles in gene regulation. However, the extent to which AS coordinates functions in a cell and tissue type specific manner is not known. Moreover, the sequence code that underlies cell and tissue type specific regulation of AS is poorly understood. Results: Using quantitative AS microarray profiling, we have identified a large number of widely expressed mouse genes that contain single or coordinated pairs of alternative exons that are spliced in a tissue regulated fashion. The majority of these AS events display differential regulation in central nervous system (CNS) tissues. Approximately half of the corresponding genes have neural specific functions and operate in common processes and interconnected pathways. Differential regulation of AS in the CNS tissues correlates strongly with a set of mostly new motifs that are predominantly located in the intron and constitutive exon sequences neighboring CNS-regulated alternative exons. Different subsets of these motifs are correlated with either increased inclusion or increased exclusion of alternative exons in CNS tissues, relative to the other profiled tissues. Conclusion: Our findings provide new evidence that specific cellular processes in the mammalian CNS are coordinated at the level of AS, and that a complex splicing code underlies CNS specific AS regulation. This code appears to comprise many new motifs, some of which are located in the constitutive exons neighboring regulated alternative exons. These data provide a basis for understanding the molecular mechanisms by which the tissue specific functions of widely expressed genes are coordinated at the level of AS.

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Crossref · 10.1186/gb-2007-8-6-r108

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  • There is little overlap (8.5%) between genes with neural-regulated alternative splicing and mRNA expression, although these subsets are highly enriched in overlapping Gene Ontology terms (40% in common).

    “Consistent with previous results (Fagnani et al., 2007; Pan et al., 2004), there is little overlap (8.5%) between genes with neural-regulated AS and mRNA expression, although these subsets of genes are highly enriched in overlapping GO terms (40% in common; Figure S1).”

    From A Highly Conserved Program of Neuronal Microexons Is Misregulated in Autistic Brains (2014) · cites this paper as Fagnani et al., 2007

  • The data reveal the largest program of neural-regulated alternative splicing events defined to date, associated with a broader range of functional processes and pathways linked to nervous system biology than previously detected.

    “These data reveal the largest program of neural-regulated AS events defined to date, and that this program is associated with a broader range of functional processes and pathways linked to nervous system biology than previously detected (Boutz et al., 2007; Fagnani et al., 2007; Ule et al., 2005).”

    From A Highly Conserved Program of Neuronal Microexons Is Misregulated in Autistic Brains (2014) · cites this paper as Fagnani et al., 2007

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Authors
Fagnani, M., Barash, Y., Ip, J. Y., Misquitta, C., Pan, Q., Saltzman, A. L., Shai, O., Lee, L., Rozenhek, A., Mohammad, N., Willaime-Morawek, S., Babak, T., Zhang, W., Hughes, T. R., van der Kooy, D., Frey, B. J., & Blencowe, B. J.
Affiliations
  • University of Toronto (CA)
  • Hebrew University of Jerusalem (IL)
Corresponding author
  • Frey, Brendan J
  • Blencowe, Benjamin J
Venue
Genome Biology
Published
2007-06-12
Volume
8
Issue
6
Pages
R108-R108
ISSN
  • 1465-6906 (ISSN-L)
  • 1474-760X
OpenAlex
W2170074416
Cited by
120
References
347
Citations by year
2026: 3 · 2025: 6 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 4 · 2020: 2 · 2019: 3 · 2018: 3 · 2017: 6 · 2016: 5 · 2015: 7 · 2014: 10 · 2013: 11 · 2012: 6
FWCI
4.90
Type
journal article
Language
en
Open access
Locations
  • Genome biology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • ePrints Soton (University of Southampton) (acceptedVersion)
  • TSpace (University of Toronto) (submittedVersion)
Funders
  • Genome Canada
  • Ontario Genomics
  • Ontario Genomics Institute
  • Canadian Institutes of Health Research
  • Natural Sciences and Engineering Research Council of Canada
  • National Cancer Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer-related molecular mechanisms research
Keywords
alternative splicing, central nervous system, alternative exons, mouse genes
MeSH terms
Animals, Central Nervous System, Exons, Gene Expression Regulation, Introns, Organ Specificity, Regulatory Sequences, Nucleic Acid, Alternative Splicing, Oligonucleotide Array Sequence Analysis, Gene Expression Profiling, Mice

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