Article: In vitro
Molecular therapy. Methods & clinical development
2021 Volume 21, Page(s) 161–170
Abstract: Engineered red blood cells (RBCs) expressing viral receptors could be used therapeutically as viral traps, as RBCs lack nuclei and other organelles required for viral replication. However, expression of viral receptors on RBCs is difficult to achieve ... ...
Abstract | Engineered red blood cells (RBCs) expressing viral receptors could be used therapeutically as viral traps, as RBCs lack nuclei and other organelles required for viral replication. However, expression of viral receptors on RBCs is difficult to achieve since mature erythrocytes lack the cellular machinery to synthesize proteins. Herein, we show that the combination of a powerful erythroid-specific expression system and transgene codon optimization yields high expression levels of the HIV-1 receptors CD4 and CCR5, as well as a CD4-glycophorin A (CD4-GpA) fusion protein in erythroid progenitor cells, which efficiently differentiated into enucleated RBCs. HIV-1 efficiently entered RBCs that co-expressed CD4 and CCR5, but viral entry was not required for neutralization, as CD4 or CD4-GpA expression in the absence of CCR5 was sufficient to potently neutralize HIV-1 and prevent infection of CD4 |
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Language | English |
Publishing date | 2021-03-10 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 2872938-9 |
ISSN | 2329-0501 ; 2329-0501 |
ISSN (online) | 2329-0501 |
ISSN | 2329-0501 |
DOI | 10.1016/j.omtm.2021.03.003 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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