Document Detail

Identification of the factors that control synthesis and accumulation of a therapeutic protein, human immune-regulatory interleukin-10, in Arabidopsis thaliana.
MedLine Citation:
PMID:  23301867     Owner:  NLM     Status:  Publisher    
Plants are one of the most economical platforms for large-scale production of recombinant proteins for biopharmaceutical and industrial uses. A large number of human recombinant proteins of therapeutic value have been successfully produced in plant systems. One of the main technical challenges of producing recombinant proteins in plants is to obtain sufficient level of protein. This research aims to identify the factors that control synthesis and accumulation of recombinant proteins in stable transgenic plants. A stepwise dissection of human immune-regulatory interleukin-10 (IL-10) protein production was carried out using Arabidopsis thaliana as a model system. EMS-mutagenized transgenic Arabidopsis IL-10 lines, at2762 and at3262, produced significantly higher amount of IL-10 protein than the non-mutagenized IL-10 line (WT-IL-10). The fates of trans-gene in these sets of plants were compared in detail by measuring synthesis and accumulation of IL-10 transcript, transcript stability, protein synthesis and IL-10 protein accumulation. The IL-10 transcripts were more stable in at2762 and at3262 lines than WT-IL-10, which may contribute to higher protein synthesis in these lines. To evaluate whether translational regulation of IL-10 controls its synthesis in non-mutagenized WT-IL-10 and higher IL-10 accumulating mutant lines, we measured the efficiency of the translational machinery. Our results indicate that mutant lines with higher trans-gene expression contain more robust and efficient translational machinery compared with the control line.
Ling Chen; Brian R Dempsey; Laszlo Gyenis; Rima Menassa; Jim E Brandle; Sangeeta Dhaubhadel
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-10
Journal Detail:
Title:  Plant biotechnology journal     Volume:  -     ISSN:  1467-7652     ISO Abbreviation:  Plant Biotechnol. J.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101201889     Medline TA:  Plant Biotechnol J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 Her Majesty the Queen in Right of Canada Plant Biotechnology Journal © 2013 Society for Experimental Biology, Association of Applied Biologists and Blackwell Publishing Ltd.
Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, London, ON, Canada.
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