Festag, J. ; Festag, M.M.* ; Asen, T. ; Wettengel, J.* ; Mück-Häusl, M. ; Abdulhaqq, S.* ; Stahl-Hennig, C.* ; Sacha, J.* ; Burwitz, B.* ; Protzer, U. ; Wisskirchen, K.
Vector-mediated delivery of human MHC-I into hepatocytes enables investigation of TCR-redirected HBV-specific T cells in mice and macaque cell cultures.
Hum. Gene Ther. 34, 1204-1218 (2023)
Adoptive T-cell therapy using natural T-cell receptor (TCR) redirection is a promising approach to fight solid cancers and viral infections in liver and other organs. However, clinical efficacy of such TCR+-T cells has been limited so far. One reason is that syngeneic preclinical models to evaluate safety and efficacy of TCR+-T cells are missing. We therefore developed an efficient viral vector strategy mediating expression of human MHC-I in hepatocytes, which allows evaluation of TCR-T cell therapies targeting diseased liver cells. We designed adeno-associated virus (AAV) and adenoviral vectors encoding either the human-mouse chimeric HLA-A*02-like molecule HHD, or fully human HLA-A*02 and human 2 microglobulin (h2m). Upon transduction of murine hepatocytes, the HLA-A*02 construct proved superior in terms of expression levels, presentation of endogenously processed peptides and activation of murine TCR+-T cells grafted with HLA-A*02-restricted, hepatitis B virus (HBV)-specific TCRs. In vivo, these T cells elicited effector function, controlled HBV replication, reduced HBV viral load and antigen expression specifically in livers of mice that had received AAV-HBV and AAV-HLA-A*02. We then demonstrated the utility of this approach by expressing the HBV-specific TCRs on macaque primary T cells enabling them to recognize HBV-infected macaque hepatocytes expressing HLA-A*02 upon adenoviral transduction. In conclusion, AAV and adenovirus vectors are suitable for delivery of HLA-A*02 and h2m into mouse and macaque hepatocytes. When recognizing HBV in the HLA-A*02-transduced mouse livers or on macaque hepatocytes, HLA-A*02-restricted, HBV-specific TCR+-T cells become activated and exert antiviral effector functions. This approach is applicable to other MHC restrictions and target diseases, paving the way for safety and efficacy studies of human TCR-based therapies in physiologically relevant preclinical animal models.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Aav Vector ; Adoptive T Cell Therapy ; Hepatitis B Virus ; Hla-a*02 ; Mhc-i Molecule ; Primary Macaque Hepatocytes ; Primary Mouse Hepatocytes; Chimeric Antigen Receptor; Immune-response; Surface-antigen; Replication; Expression; System; Safety; Model; Hbv
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2023
Prepublished im Jahr
0
HGF-Berichtsjahr
2023
ISSN (print) / ISBN
1043-0342
e-ISSN
1557-7422
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 34,
Heft: 23-24,
Seiten: 1204-1218
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Mary Ann Liebert
Verlagsort
140 Huguenot Street, 3rd Fl, New Rochelle, Ny 10801 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)
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Immune Response and Infection
PSP-Element(e)
G-502700-003
Förderungen
National Institutes of Health
TUM Graduate School
Young investigator
German Center for Infection Research (DZIF), TTU Hepatitis
German Research Foundation (DFG)
Copyright
Erfassungsdatum
2023-11-28