Electroporated Antigen-Encoding mRNA Is Not a Danger Signal to Human Mature Monocyte-Derived Dendritic Cells
Joint Authors
Vera, Julio
Hoyer, Stefanie
Gerer, Kerstin F.
Pfeiffer, Isabell A.
Prommersberger, Sabrina
Höfflin, Sandra
Jaitly, Tanushree
Cavalieri, Duccio
Schuler, Gerold
Schaft, Niels
Dörrie, Jan
Beltrame, Luca
Source
Journal of Immunology Research
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-12-28
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
For therapeutic cancer vaccination, the adoptive transfer of mRNA-electroporated dendritic cells (DCs) is frequently performed, usually with monocyte-derived, cytokine-matured DCs (moDCs).
However, DCs are rich in danger-sensing receptors which could recognize the exogenously delivered mRNA and induce DC activation, hence influencing the DCs’ immunogenicity.
Therefore, we examined whether electroporation of mRNA with a proper cap and a poly-A tail of at least 64 adenosines had any influence on cocktail-matured moDCs.
We used 16 different RNAs, encoding tumor antigens (MelanA, NRAS, BRAF, GNAQ, GNA11, and WT1), and variants thereof.
None of those RNAs induced changes in the expression of CD25, CD40, CD83, CD86, and CD70 or the secretion of the cytokines IL-8, IL-6, and TNFα of more than 1.5-fold compared to the control condition, while an mRNA encoding an NF-κB-activation protein as positive control induced massive secretion of the cytokines.
To determine whether mRNA electroporation had any effect on the whole transcriptome of the DCs, we performed microarray analyses of DCs of 6 different donors.
None of 60,000 probes was significantly different between mock-electroporated DCs and MelanA-transfected DCs.
Hence, we conclude that no transcriptional programs were induced within cocktail-matured DCs by electroporation of single tumor-antigen-encoding mRNAs.
American Psychological Association (APA)
Hoyer, Stefanie& Gerer, Kerstin F.& Pfeiffer, Isabell A.& Prommersberger, Sabrina& Höfflin, Sandra& Jaitly, Tanushree…[et al.]. 2015. Electroporated Antigen-Encoding mRNA Is Not a Danger Signal to Human Mature Monocyte-Derived Dendritic Cells. Journal of Immunology Research،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1068651
Modern Language Association (MLA)
Hoyer, Stefanie…[et al.]. Electroporated Antigen-Encoding mRNA Is Not a Danger Signal to Human Mature Monocyte-Derived Dendritic Cells. Journal of Immunology Research No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1068651
American Medical Association (AMA)
Hoyer, Stefanie& Gerer, Kerstin F.& Pfeiffer, Isabell A.& Prommersberger, Sabrina& Höfflin, Sandra& Jaitly, Tanushree…[et al.]. Electroporated Antigen-Encoding mRNA Is Not a Danger Signal to Human Mature Monocyte-Derived Dendritic Cells. Journal of Immunology Research. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1068651
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1068651