Charitidis, Filippos T. (2023)
Deploying single-cell transcriptomics for assessing CAR T cell generation: alleviating antiviral restriction factors enhances gene transfer.
Technische Universität Darmstadt
doi: 10.26083/tuprints-00023984
Dissertation, Erstveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
Lentiviral vectors (LV) have become the dominant tool for stable gene transfer into lymphocytes including chimeric antigen receptor (CAR) gene delivery to T cells, a major breakthrough in cancer therapy. Yet, room for improvement remains, especially for the latest LV generations delivering genes selectively into T cell subtypes, a key requirement for in vivo CAR T cell generation. Towards improving gene transfer rates with these vectors, transcriptome analyses on human T lymphocytes after exposure to CAR-encoding conventional vector VSV-LV, and vectors targeted to CD8+ (CD8-LV) or CD4+ T cells (CD4-LV) was conducted. Genes related to quiescence and antiviral restriction were found to be upregulated in CAR-negative cells exposed to all types of LVs. Down-modulation of various antiviral restriction factors including the interferon-induced transmembrane proteins (IFITMs) was achieved with rapamycin as verified by mass spectrometry (LC-MS). Strikingly, rapamycin enhanced transduction by up to 7-fold for CD8-LV and CD4-LV without compromising CAR T cell activities, but did not improve VSV-LV. When administered to humanized mice, CD8-LV resulted in higher rates of GFP gene delivery as well as faster in vivo CAR T cell generation and tumor control. The data favor multi-omics approaches for improvements in gene delivery.
Typ des Eintrags: | Dissertation | ||||
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Erschienen: | 2023 | ||||
Autor(en): | Charitidis, Filippos T. | ||||
Art des Eintrags: | Erstveröffentlichung | ||||
Titel: | Deploying single-cell transcriptomics for assessing CAR T cell generation: alleviating antiviral restriction factors enhances gene transfer | ||||
Sprache: | Englisch | ||||
Referenten: | Nuber, Prof. Dr. Ulrike A. ; Buchholz, Prof. Dr. Christian J. | ||||
Publikationsjahr: | 13 November 2023 | ||||
Ort: | Darmstadt | ||||
Kollation: | XI, 140 Seiten | ||||
Datum der mündlichen Prüfung: | 26 April 2023 | ||||
DOI: | 10.26083/tuprints-00023984 | ||||
URL / URN: | https://tuprints.ulb.tu-darmstadt.de/23984 | ||||
Kurzbeschreibung (Abstract): | Lentiviral vectors (LV) have become the dominant tool for stable gene transfer into lymphocytes including chimeric antigen receptor (CAR) gene delivery to T cells, a major breakthrough in cancer therapy. Yet, room for improvement remains, especially for the latest LV generations delivering genes selectively into T cell subtypes, a key requirement for in vivo CAR T cell generation. Towards improving gene transfer rates with these vectors, transcriptome analyses on human T lymphocytes after exposure to CAR-encoding conventional vector VSV-LV, and vectors targeted to CD8+ (CD8-LV) or CD4+ T cells (CD4-LV) was conducted. Genes related to quiescence and antiviral restriction were found to be upregulated in CAR-negative cells exposed to all types of LVs. Down-modulation of various antiviral restriction factors including the interferon-induced transmembrane proteins (IFITMs) was achieved with rapamycin as verified by mass spectrometry (LC-MS). Strikingly, rapamycin enhanced transduction by up to 7-fold for CD8-LV and CD4-LV without compromising CAR T cell activities, but did not improve VSV-LV. When administered to humanized mice, CD8-LV resulted in higher rates of GFP gene delivery as well as faster in vivo CAR T cell generation and tumor control. The data favor multi-omics approaches for improvements in gene delivery. |
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Status: | Verlagsversion | ||||
URN: | urn:nbn:de:tuda-tuprints-239840 | ||||
Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften, Biologie | ||||
Fachbereich(e)/-gebiet(e): | 10 Fachbereich Biologie 10 Fachbereich Biologie > Stammzell- und Entwicklungsbiologie |
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Hinterlegungsdatum: | 13 Nov 2023 13:06 | ||||
Letzte Änderung: | 14 Nov 2023 06:40 | ||||
PPN: | |||||
Referenten: | Nuber, Prof. Dr. Ulrike A. ; Buchholz, Prof. Dr. Christian J. | ||||
Datum der mündlichen Prüfung / Verteidigung / mdl. Prüfung: | 26 April 2023 | ||||
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