| Autor: |
Tudor Emanuel Fertig, Leona Chitoiu, Daciana Silvia Marta, Victor-Stefan Ionescu, Valeriu Bogdan Cismasiu, Eugen Radu, Giulia Angheluta, Maria Dobre, Ana Serbanescu, Mihail Eugen Hinescu, Mihaela Gherghiceanu |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Biomedicines, Vol 10, Iss 7, p 1538 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2227-9059 |
| DOI: |
10.3390/biomedicines10071538 |
| Popis: |
COVID-19 mRNA vaccines effectively reduce incidence of severe disease, hospitalisation and death. The biodistribution and pharmacokinetics of the mRNA-containing lipid nanoparticles (LNPs) in these vaccines are unknown in humans. In this study, we used qPCR to track circulating mRNA in blood at different time-points after BNT162b2 vaccination in a small cohort of healthy individuals. We found that vaccine-associated synthetic mRNA persists in systemic circulation for at least 2 weeks. Furthermore, we used transmission electron microscopy (TEM) to investigate SARS-CoV-2 spike protein expression in human leukemic cells and in primary mononuclear blood cells treated in vitro with the BNT162b2 vaccine. TEM revealed morphological changes suggestive of LNP uptake, but only a small fraction of K562 leukemic cells presented spike-like structures at the cell surface, suggesting reduced levels of expression for these specific phenotypes. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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