The histone methyltransferase Setd8 alters the chromatin landscape and regulates the expression of key transcription factors during erythroid differentiation

Background SETD8 is the sole methyltransferase capable of mono-methylating histone H4, lysine 20. SETD8 and H4K20me1 play a role in a number of essential biologic processes, including cell cycle progression, establishment of higher order chromatin structure, and transcriptional regulation. SETD8 is...

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Veröffentlicht in:Epigenetics & chromatin 2020-03, Vol.13 (1), p.16-16, Article 16
Hauptverfasser: Myers, Jacquelyn A., Couch, Tyler, Murphy, Zachary, Malik, Jeffrey, Getman, Michael, Steiner, Laurie A.
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container_start_page 16
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creator Myers, Jacquelyn A.
Couch, Tyler
Murphy, Zachary
Malik, Jeffrey
Getman, Michael
Steiner, Laurie A.
description Background SETD8 is the sole methyltransferase capable of mono-methylating histone H4, lysine 20. SETD8 and H4K20me1 play a role in a number of essential biologic processes, including cell cycle progression, establishment of higher order chromatin structure, and transcriptional regulation. SETD8 is highly expressed in erythroid cells and erythroid deletion of Setd8 is embryonic lethal by embryonic day 11.5 (E11.5) due to profound anemia, suggesting that it has an erythroid-specific function. The function of SETD8 in the hemopoietic system is poorly understood. The goal of our study was to gain insights into the function of SETD8 during erythroid differentiation. Results We performed ATAC-seq (assay for transposase-accessible chromatin) on sorted populations of E10.5 Setd8 mutant and control erythroblasts. Accessibility profiles were integrated with expression changes and a mark of heterochromatin (H3K27me3) performed in wild-type E10.5 erythroblasts to further understand the role of SETD8 in erythropoiesis. Data integration identified regions of greater chromatin accessibility in Setd8 mutant cells that co-located with H3K27me3 in wild-type E10.5 erythroblasts suggesting that these regions, and their associated genes, are repressed during normal erythropoiesis. The majority of these more accessible regions were located in promoters and they frequently co-located with the NFY complex. Pathway analysis of genes identified through data integration revealed stemness-related pathways. Among those genes were multiple transcriptional regulators active in multipotent progenitors, but repressed during erythroid differentiation including Hhex, Hlx, and Gata2. Consistent with a role for SETD8 in erythroid specification, SETD8 expression is up-regulated upon erythroid commitment, and Setd8 disruption impairs erythroid colony forming ability. Conclusion Taken together, our results suggest that SETD8 is an important regulator of the chromatin landscape during erythroid differentiation, particularly at promoters. Our results also identify a novel role for Setd8 in the establishment of appropriate patterns of lineage-restricted gene expression during erythroid differentiation.
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SETD8 and H4K20me1 play a role in a number of essential biologic processes, including cell cycle progression, establishment of higher order chromatin structure, and transcriptional regulation. SETD8 is highly expressed in erythroid cells and erythroid deletion of Setd8 is embryonic lethal by embryonic day 11.5 (E11.5) due to profound anemia, suggesting that it has an erythroid-specific function. The function of SETD8 in the hemopoietic system is poorly understood. The goal of our study was to gain insights into the function of SETD8 during erythroid differentiation. Results We performed ATAC-seq (assay for transposase-accessible chromatin) on sorted populations of E10.5 Setd8 mutant and control erythroblasts. Accessibility profiles were integrated with expression changes and a mark of heterochromatin (H3K27me3) performed in wild-type E10.5 erythroblasts to further understand the role of SETD8 in erythropoiesis. Data integration identified regions of greater chromatin accessibility in Setd8 mutant cells that co-located with H3K27me3 in wild-type E10.5 erythroblasts suggesting that these regions, and their associated genes, are repressed during normal erythropoiesis. The majority of these more accessible regions were located in promoters and they frequently co-located with the NFY complex. Pathway analysis of genes identified through data integration revealed stemness-related pathways. Among those genes were multiple transcriptional regulators active in multipotent progenitors, but repressed during erythroid differentiation including Hhex, Hlx, and Gata2. Consistent with a role for SETD8 in erythroid specification, SETD8 expression is up-regulated upon erythroid commitment, and Setd8 disruption impairs erythroid colony forming ability. Conclusion Taken together, our results suggest that SETD8 is an important regulator of the chromatin landscape during erythroid differentiation, particularly at promoters. 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This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). 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SETD8 and H4K20me1 play a role in a number of essential biologic processes, including cell cycle progression, establishment of higher order chromatin structure, and transcriptional regulation. SETD8 is highly expressed in erythroid cells and erythroid deletion of Setd8 is embryonic lethal by embryonic day 11.5 (E11.5) due to profound anemia, suggesting that it has an erythroid-specific function. The function of SETD8 in the hemopoietic system is poorly understood. The goal of our study was to gain insights into the function of SETD8 during erythroid differentiation. Results We performed ATAC-seq (assay for transposase-accessible chromatin) on sorted populations of E10.5 Setd8 mutant and control erythroblasts. Accessibility profiles were integrated with expression changes and a mark of heterochromatin (H3K27me3) performed in wild-type E10.5 erythroblasts to further understand the role of SETD8 in erythropoiesis. Data integration identified regions of greater chromatin accessibility in Setd8 mutant cells that co-located with H3K27me3 in wild-type E10.5 erythroblasts suggesting that these regions, and their associated genes, are repressed during normal erythropoiesis. The majority of these more accessible regions were located in promoters and they frequently co-located with the NFY complex. Pathway analysis of genes identified through data integration revealed stemness-related pathways. Among those genes were multiple transcriptional regulators active in multipotent progenitors, but repressed during erythroid differentiation including Hhex, Hlx, and Gata2. Consistent with a role for SETD8 in erythroid specification, SETD8 expression is up-regulated upon erythroid commitment, and Setd8 disruption impairs erythroid colony forming ability. Conclusion Taken together, our results suggest that SETD8 is an important regulator of the chromatin landscape during erythroid differentiation, particularly at promoters. Our results also identify a novel role for Setd8 in the establishment of appropriate patterns of lineage-restricted gene expression during erythroid differentiation.</description><subject>Analysis</subject><subject>Anemia</subject><subject>Animals</subject><subject>Cell cycle</subject><subject>Cell Line</subject><subject>Cells, Cultured</subject><subject>Chromatin</subject><subject>Chromatin Assembly and Disassembly</subject><subject>Deoxyribonucleic acid</subject><subject>Differentiation</subject><subject>DNA</subject><subject>DNA binding proteins</subject><subject>DNA damage</subject><subject>DNA methylation</subject><subject>Embryos</subject><subject>Epigenetics</subject><subject>Erythroblasts - cytology</subject><subject>Erythroblasts - metabolism</subject><subject>Erythroid</subject><subject>Erythropoiesis</subject><subject>Gene expression</subject><subject>Genes</subject><subject>Genetic research</subject><subject>Genetics &amp; Heredity</subject><subject>H4K20me1</subject><subject>Histone methyltransferase</subject><subject>Histone-Lysine N-Methyltransferase - genetics</subject><subject>Histone-Lysine N-Methyltransferase - metabolism</subject><subject>Histones</subject><subject>Humans</subject><subject>Life Sciences &amp; 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chromatin</jtitle><stitle>EPIGENET CHROMATIN</stitle><addtitle>Epigenetics Chromatin</addtitle><date>2020-03-16</date><risdate>2020</risdate><volume>13</volume><issue>1</issue><spage>16</spage><epage>16</epage><pages>16-16</pages><artnum>16</artnum><issn>1756-8935</issn><eissn>1756-8935</eissn><abstract>Background SETD8 is the sole methyltransferase capable of mono-methylating histone H4, lysine 20. SETD8 and H4K20me1 play a role in a number of essential biologic processes, including cell cycle progression, establishment of higher order chromatin structure, and transcriptional regulation. SETD8 is highly expressed in erythroid cells and erythroid deletion of Setd8 is embryonic lethal by embryonic day 11.5 (E11.5) due to profound anemia, suggesting that it has an erythroid-specific function. The function of SETD8 in the hemopoietic system is poorly understood. The goal of our study was to gain insights into the function of SETD8 during erythroid differentiation. Results We performed ATAC-seq (assay for transposase-accessible chromatin) on sorted populations of E10.5 Setd8 mutant and control erythroblasts. Accessibility profiles were integrated with expression changes and a mark of heterochromatin (H3K27me3) performed in wild-type E10.5 erythroblasts to further understand the role of SETD8 in erythropoiesis. Data integration identified regions of greater chromatin accessibility in Setd8 mutant cells that co-located with H3K27me3 in wild-type E10.5 erythroblasts suggesting that these regions, and their associated genes, are repressed during normal erythropoiesis. The majority of these more accessible regions were located in promoters and they frequently co-located with the NFY complex. Pathway analysis of genes identified through data integration revealed stemness-related pathways. Among those genes were multiple transcriptional regulators active in multipotent progenitors, but repressed during erythroid differentiation including Hhex, Hlx, and Gata2. Consistent with a role for SETD8 in erythroid specification, SETD8 expression is up-regulated upon erythroid commitment, and Setd8 disruption impairs erythroid colony forming ability. Conclusion Taken together, our results suggest that SETD8 is an important regulator of the chromatin landscape during erythroid differentiation, particularly at promoters. Our results also identify a novel role for Setd8 in the establishment of appropriate patterns of lineage-restricted gene expression during erythroid differentiation.</abstract><cop>LONDON</cop><pub>Springer Nature</pub><pmid>32178723</pmid><doi>10.1186/s13072-020-00337-9</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0002-2987-0400</orcidid><orcidid>https://orcid.org/0000-0002-2923-4105</orcidid><oa>free_for_read</oa></addata></record>
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subjects Analysis
Anemia
Animals
Cell cycle
Cell Line
Cells, Cultured
Chromatin
Chromatin Assembly and Disassembly
Deoxyribonucleic acid
Differentiation
DNA
DNA binding proteins
DNA damage
DNA methylation
Embryos
Epigenetics
Erythroblasts - cytology
Erythroblasts - metabolism
Erythroid
Erythropoiesis
Gene expression
Genes
Genetic research
Genetics & Heredity
H4K20me1
Histone methyltransferase
Histone-Lysine N-Methyltransferase - genetics
Histone-Lysine N-Methyltransferase - metabolism
Histones
Humans
Life Sciences & Biomedicine
Lysine
Methyltransferases
Mice
Mutants
Novels
Science & Technology
Setd8
Transcription factors
Transcription Factors - genetics
Transcription Factors - metabolism
Transferases
title The histone methyltransferase Setd8 alters the chromatin landscape and regulates the expression of key transcription factors during erythroid differentiation
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