Title |
Uptake of synthetic naked RNA by skin-resident dendritic cells via macropinocytosis allows antigen expression and induction of T-cell responses in mice
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Published in |
Cancer Immunology, Immunotherapy, July 2016
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DOI | 10.1007/s00262-016-1869-7 |
Pubmed ID | |
Authors |
Abderraouf Selmi, Fulvia Vascotto, Kordula Kautz-Neu, Özlem Türeci, Ugur Sahin, Esther von Stebut, Mustafa Diken, Sebastian Kreiter |
Abstract |
Intradermal administration of antigen-encoding RNA has entered clinical testing for cancer vaccination. However, insight into the underlying mechanism of RNA uptake, translation and antigen presentation is still limited. Utilizing pharmacologically optimized naked RNA, the dose-response kinetics revealed a rise in reporter signal with increasing RNA amounts and a prolonged RNA translation of reporter protein up to 30 days after intradermal injection. Dendritic cells (DCs) in the dermis were shown to engulf RNA, and the signal arising from the reporter RNA was significantly diminished after DC depletion. Macropinocytosis was relevant for intradermal RNA uptake and translation in vitro and in vivo. By combining intradermal RNA vaccination and inhibition of macropinocytosis, we show that effective priming of antigen-specific CD8(+) T-cells also relies on this uptake mechanism. This report demonstrates that direct antigen translation by dermal DCs after intradermal naked RNA vaccination is relevant for efficient priming of antigen-specific T-cells. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Germany | 2 | 50% |
France | 1 | 25% |
United Kingdom | 1 | 25% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 50% |
Scientists | 1 | 25% |
Science communicators (journalists, bloggers, editors) | 1 | 25% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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United States | 1 | <1% |
Unknown | 103 | 99% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 15 | 14% |
Student > Master | 14 | 13% |
Student > Bachelor | 11 | 11% |
Researcher | 11 | 11% |
Student > Doctoral Student | 7 | 7% |
Other | 18 | 17% |
Unknown | 28 | 27% |
Readers by discipline | Count | As % |
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Biochemistry, Genetics and Molecular Biology | 17 | 16% |
Pharmacology, Toxicology and Pharmaceutical Science | 13 | 13% |
Immunology and Microbiology | 8 | 8% |
Medicine and Dentistry | 8 | 8% |
Agricultural and Biological Sciences | 6 | 6% |
Other | 18 | 17% |
Unknown | 34 | 33% |