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A dynamic alternative splicing program regulates gene expression during terminal erythropoiesis

Journal Article · · Nucleic Acids Research
DOI:https://doi.org/10.1093/nar/gkt1388· OSTI ID:1625522
 [1];  [2];  [2];  [2];  [3];  [3];  [3];  [4];  [2]
  1. Univ. of California, Berkeley, CA (United States); DOE/OSTI
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. New York Blood Center, New York, NY (United States)
  4. Univ. of California, Berkeley, CA (United States)
Alternative pre-messenger RNA splicing remodels the human transcriptome in a spatiotemporal manner during normal development and differentiation. Here we explored the landscape of transcript diversity in the erythroid lineage by RNA-seq analysis of five highly purified populations of morphologically distinct human erythroblasts, representing the last four cell divisions before enucleation. In this unique differentiation system, we found evidence of an extensive and dynamic alternative splicing program encompassing genes with many diverse functions. Alternative splicing was particularly enriched in genes controlling cell cycle, organelle organization, chromatin function and RNA processing. Many alternative exons exhibited differentiation-associated switches in splicing efficiency, mostly in late-stage polychromatophilic and orthochromatophilic erythroblasts, in concert with extensive cellular remodeling that precedes enucleation. A subset of alternative splicing switches introduces premature translation termination codons into selected transcripts in a differentiation stage-specific manner, supporting the hypothesis that alternative splicing-coupled nonsense-mediated decay contributes to regulation of erythroid-expressed genes as a novel part of the overall differentiation program. We conclude that a highly dynamic alternative splicing program in terminally differentiating erythroblasts plays a major role in regulating gene expression to ensure synthesis of appropriate proteome at each stage as the cells remodel in preparation for production of mature red cells.
Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1625522
Journal Information:
Nucleic Acids Research, Journal Name: Nucleic Acids Research Journal Issue: 6 Vol. 42; ISSN 0305-1048
Publisher:
Oxford University PressCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (38)

Intron retention as a component of regulated gene expression programs journal April 2017
Novel methods for studying normal and disordered erythropoiesis journal November 2015
Comprehensive Proteomic Analysis of Human Erythropoiesis journal August 2016
Exon Junction Complexes Show a Distributional Bias toward Alternatively Spliced mRNAs and against mRNAs Coding for Ribosomal Proteins journal August 2016
Emerging functions of alternative splicing coupled with nonsense-mediated decay journal August 2014
A dynamic intron retention program enriched in RNA processing genes regulates gene expression during terminal erythropoiesis journal November 2015
Temporal and spatial domain-specific transcriptomic analysis of a vital reproductive meristem in Arabidopsis thaliana journal November 2015
Aberrant splicing of genes involved in haemoglobin synthesis and impaired terminal erythroid maturation in SF 3B1 mutated refractory anaemia with ring sideroblasts journal August 2015
The U2AF1S34F mutation induces lineage-specific splicing alterations in myelodysplastic syndromes journal September 2017
A comprehensive joint analysis of the long and short RNA transcriptomes of human erythrocytes journal November 2015
Distinct gene expression program dynamics during erythropoiesis from human induced pluripotent stem cells compared with adult and cord blood progenitors journal October 2016
SF3B1 deficiency impairs human erythropoiesis via activation of p53 pathway: implications for understanding of ineffective erythropoiesis in MDS journal February 2018
Dose-Dependent Regulation of Alternative Splicing by MBNL Proteins Reveals Biomarkers for Myotonic Dystrophy journal September 2016
Genetic disarray follows mutant KLF1-E325K expression in a congenital dyserythropoietic anemia patient journal March 2019
RNA Binding Proteins and Regulation of mRNA Translation in Erythropoiesis journal July 2018
Alternative RNA Structure-Coupled Gene Regulations in Tumorigenesis journal December 2014
Tissue- and case-specific retention of intron 40 in mature dystrophin mRNA journal October 2015
Tissue- and case-specific retention of intron 40 in mature dystrophin mRNA journal April 2015
Alternative splicing as a regulator of development and tissue identity journal May 2017
We skip to work: alternative splicing in normal and malignant myelopoiesis journal January 2018
Alternative mRNA splicing in cancer immunotherapy journal July 2019
Unravelling the transcriptomic landscape of the major phase II UDP-glucuronosyltransferase drug metabolizing pathway using targeted RNA sequencing journal April 2015
CARM1-mediated methylation of protein arginine methyltransferase 5 represses human γ-globin gene expression in erythroleukemia cells journal November 2018
Repression by RB1 characterizes genes involved in the penultimate stage of erythroid development journal November 2015
The alternative splicing program of differentiated smooth muscle cells involves concerted non-productive splicing of post-transcriptional regulators journal June 2016
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Blood Relatives: Splicing Mechanisms underlying Erythropoiesis in Health and Disease journal January 2018
The alternative splicing program of differentiated smooth muscle cells involves concerted non-productive splicing of post-transcriptional regulators text January 2016
Intron retention as a component of regulated gene expression programs text January 2017
Repression by RB1 characterizes genes involved in the penultimate stage of erythroid development text January 2015
Repression by RB1 characterizes genes involved in the penultimate stage of erythroid development text January 2015

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