Correlation Between Expression of Recombinant Proteins and Abundance of H3K4Me3 on the Enhancer of Human Cytomegalovirus Major Immediate-Early Promoter

Role of epigenetic regulation in the control of gene expression is well established. The impact of several epigenetic mechanisms, such as DNA methylation and histone acetylation, on recombinant protein production in mammalian cells has been investigated recently. Here we investigate the correlation...

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Veröffentlicht in:Molecular biotechnology 2017-08, Vol.59 (8), p.315-322
Hauptverfasser: Soo, Benjamin P. C., Tay, Julian, Ng, Shirelle, Ho, Steven C. L., Yang, Yuansheng, Chao, Sheng-Hao
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container_title Molecular biotechnology
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creator Soo, Benjamin P. C.
Tay, Julian
Ng, Shirelle
Ho, Steven C. L.
Yang, Yuansheng
Chao, Sheng-Hao
description Role of epigenetic regulation in the control of gene expression is well established. The impact of several epigenetic mechanisms, such as DNA methylation and histone acetylation, on recombinant protein production in mammalian cells has been investigated recently. Here we investigate the correlation between the selected epigenetic markers and five trastuzumab biosimilar-producing Chinese hamster ovary (CHO) cell lines in which the expression of trastuzumab is driven by human cytomegalovirus (HCMV) major immediate-early (MIE) promoter. We chose the producing clones in which transcription was the determinative step for the production of recombinant trastuzumab. We found that the abundance of trimethylation of histone 3 at lysine 4 (H3K4Me3) on the enhancer of HCMV MIE promoter correlated well with the relative titers of recombinant trastuzumab among the clones. Such close correlation was not observed between the recombinant protein and other epigenetic markers examined in our study. Our results demonstrate that the HCMV MIE enhancer-bound H3K4Me3 epigenetic marker may be used as the epigenetic indicator to predict the relative production of recombinant proteins between the producing CHO cell lines.
doi_str_mv 10.1007/s12033-017-0019-6
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Here we investigate the correlation between the selected epigenetic markers and five trastuzumab biosimilar-producing Chinese hamster ovary (CHO) cell lines in which the expression of trastuzumab is driven by human cytomegalovirus (HCMV) major immediate-early (MIE) promoter. We chose the producing clones in which transcription was the determinative step for the production of recombinant trastuzumab. We found that the abundance of trimethylation of histone 3 at lysine 4 (H3K4Me3) on the enhancer of HCMV MIE promoter correlated well with the relative titers of recombinant trastuzumab among the clones. Such close correlation was not observed between the recombinant protein and other epigenetic markers examined in our study. Our results demonstrate that the HCMV MIE enhancer-bound H3K4Me3 epigenetic marker may be used as the epigenetic indicator to predict the relative production of recombinant proteins between the producing CHO cell lines.</abstract><cop>New York</cop><pub>Springer US</pub><pmid>28664508</pmid><doi>10.1007/s12033-017-0019-6</doi><tpages>8</tpages></addata></record>
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subjects Abundance
Acetylation
Animals
Biochemistry
Biological Techniques
Biotechnology
Cell Biology
Cell lines
Chemistry
Chemistry and Materials Science
CHO Cells
Chromatin
Cloning
Correlation
Correlation analysis
Cricetinae
Cricetulus
Cytomegalovirus
Cytomegalovirus - genetics
Deoxyribonucleic acid
DNA
DNA Methylation
Enhancer Elements, Genetic
Epigenetics
Gene Dosage
Gene expression
Genes, Immediate-Early
Histones - metabolism
Human Genetics
Humans
Immunotherapy
Lysine
Lysine - metabolism
Mammalian cells
Mammals
Markers
Methylation
Monoclonal antibodies
Original Paper
Promoter Regions, Genetic
Protein Science
Proteins
Recombinant Proteins - metabolism
RNA, Messenger - genetics
RNA, Messenger - metabolism
Studies
Transcription
Trastuzumab
Trastuzumab - biosynthesis
Trastuzumab - genetics
Trastuzumab - metabolism
title Correlation Between Expression of Recombinant Proteins and Abundance of H3K4Me3 on the Enhancer of Human Cytomegalovirus Major Immediate-Early Promoter
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