Article ; Online: A lentiviral vector for the production of T cells with an inducible transgene and a constitutively expressed tumour-targeting receptor.
Nature biomedical engineering
2023 Volume 7, Issue 9, Page(s) 1063–1080
Abstract: Vectors that facilitate the engineering of T cells that can better harness endogenous immunity and overcome suppressive barriers in the tumour microenvironment would help improve the safety and efficacy of T-cell therapies for more patients. Here we ... ...
Abstract | Vectors that facilitate the engineering of T cells that can better harness endogenous immunity and overcome suppressive barriers in the tumour microenvironment would help improve the safety and efficacy of T-cell therapies for more patients. Here we report the design, production and applicability, in T-cell engineering, of a lentiviral vector leveraging an antisense configuration and comprising a promoter driving the constitutive expression of a tumour-directed receptor and a second promoter enabling the efficient activation-inducible expression of a genetic payload. The vector allows for the delivery of a variety of genes to human T cells, as we show for interleukin-2 and a microRNA-based short hairpin RNA for the knockdown of the gene coding for haematopoietic progenitor kinase 1, a negative regulator of T-cell-receptor signalling. We also show that a gene encoded under an activation-inducible promoter is specifically expressed by tumour-redirected T cells on encountering a target antigen in the tumour microenvironment. The single two-gene-encoding vector can be produced at high titres under an optimized protocol adaptable to good manufacturing practices. |
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MeSH term(s) | Humans ; Lentivirus/genetics ; T-Lymphocytes ; Transgenes/genetics ; Promoter Regions, Genetic/genetics ; Neoplasms/genetics ; Neoplasms/therapy ; Tumor Microenvironment |
Language | English |
Publishing date | 2023-04-17 |
Publishing country | England |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ISSN | 2157-846X |
ISSN (online) | 2157-846X |
DOI | 10.1038/s41551-023-01013-5 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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