Ursch, L.T.* ; Müschen, J.S.* ; Ritter, J.* ; Klermund, J.* ; Bernard, B.E.* ; Kolb, S.* ; Warmuth, L.* ; Andrieux, G.* ; Miller, G. ; Jiménez-Muñoz, M. ; Theis, F.J. ; Boerries, M.* ; Busch, D.H.* ; Cathomen, T.* ; Schumann, K.*
Modulation of TCR stimulation and pifithrin-α improves the genomic safety profile of CRISPR-engineered human T cells.
Cell Rep. Med. 5:101846 (2024)
CRISPR-engineered chimeric antigen receptor (CAR) T cells are at the forefront of novel cancer treatments. However, several reports describe the occurrence of CRISPR-induced chromosomal aberrations. So far, measures to increase the genomic safety of T cell products focused mainly on the components of the CRISPR-Cas9 system and less on T cell-intrinsic features, such as their massive expansion after T cell receptor (TCR) stimulation. Here, we describe driving forces of indel formation in primary human T cells. Increased T cell activation and proliferation speed correlate with larger deletions. Editing of non-activated T cells reduces the risk of large deletions with the downside of reduced knockout efficiencies. Alternatively, the addition of the small-molecule pifithrin-α limits large deletions, chromosomal translocations, and aneuploidy in a p53-independent manner while maintaining the functionality of CRISPR-engineered T cells, including CAR T cells. Controlling T cell activation and pifithrin-α treatment are easily implementable strategies to improve the genomic integrity of CRISPR-engineered T cells.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Car T Cell Therapy ; Crispr Engineering ; T Cell Activation ; Aneuploidy ; Chromosomal Aberrations ; Genomic Integrity ; Human T cells ; Large Deletions ; Pifithrin-alpha ; Translocations; Protects Mice; P53; Inhibitor; Targets; Alpha; Dna; Apoptosis
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2024
Prepublished im Jahr
0
HGF-Berichtsjahr
2024
ISSN (print) / ISBN
2666-3791
e-ISSN
2666-3791
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 5,
Heft: 12,
Seiten: ,
Artikelnummer: 101846
Supplement: ,
Reihe
Verlag
Cell Press
Verlagsort
50 Hampshire St, Floor 5, Cambridge, Ma 02139 Usa
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30505 - New Technologies for Biomedical Discoveries
30205 - Bioengineering and Digital Health
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
A-632200-001
G-503800-001
Förderungen
Else Kroner-Fresenius-Stiftung
Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
German Federal Ministry of Education and Research (BMBF) within the Medical Informatics Funding Scheme
Core Facility "CyTUM MIH"in cell sorting (DFG)
Copyright
Erfassungsdatum
2024-12-10