High Hydrostatic Pressure, HHP, Tumourvaccines, Cancer, Cancercells, Apoptosis, Necrosis
Controlled terms:
Tumorzelle; Impfstoff; Hochdrucktechnik
TUM classification:
MED 321d; MED 335d; MED 460d
Abstract:
Ein Ansatz zur Therapie maligner Erkrankungen ist die Vakzinierung mit inaktivierten autologen Tumorzellen. Es wurde untersucht, ob durch Hochdruckbehandlung > 100 MPa Tumorzellen bei Erhalt ihrer Immunogenität inaktiviert werden können und welche Formen des Zelltodes ausgelöst werden. Es konnte gezeigt werden, dass ab 200 MPa Apoptose und ab 300 MPa Nekrose induziert wird. Sowohl hochdruckbehandelte apoptotische, als auch nekrotische Zellen behalten ihre Immunogenität im Tiermodell bei.
Translated abstract:
One therapeutic approach is based on the vaccination of cancer patients with inactivated autologous tumour cells. Aim of this work was to test the treatment of tumourcells with high hydrostatic pressure (HHP) > 100 MPa as an alternative technique to inactivate cell based vaccines. We analyzed the matter of cell death, the efficacy of the inactivation, and the immunogenicity of cells treated applying HHP. At 200 MPa, cells died by apoptosis. Furthermore cells pressurized above 300 MPa necrotized during treatment. Most importantly, both pressurized apoptotic and necrotic cells retained their immunogenicity in vivo. «
One therapeutic approach is based on the vaccination of cancer patients with inactivated autologous tumour cells. Aim of this work was to test the treatment of tumourcells with high hydrostatic pressure (HHP) > 100 MPa as an alternative technique to inactivate cell based vaccines. We analyzed the matter of cell death, the efficacy of the inactivation, and the immunogenicity of cells treated applying HHP. At 200 MPa, cells died by apoptosis. Furthermore cells pressurized above 300 MPa necrotized... »