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Deutsches Krebsforschungszentrum Im Neuenheimer Feld 280 69120 Heidelberg, Germany http://www.dkfz.de
Contact Ms Dr. Sibylle Kohlstädt +49 6221 422854
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Deutsches Krebsforschungszentrum

Neu entdeckter Mechanismus der T-Zell-Kontrolle kann Krebs-Immuntherapien beeinträchtigen

(PresseBox) (Heidelberg, )
Tragen aktivierte T-Zellen ein bestimmtes Markerprotein auf ihrer Oberfläche, so werden sie von natürlichen Killerzellen (NK)-Zellen, einer weiteren Zellart des Immunsystems, in Schach gehalten. Damit verhindert der Körper vermutlich, dass zerstörerische Immunreaktionen „überschießen“. Dies entdeckten Forschende vom Deutschen Krebsforschungszentrum (DKFZ) und von der Universitätsmedizin Mannheim (UMM) und zeigten: NK-Zellen können auf diese Weise auch die Wirkung von Krebstherapien mit Immun-Checkpoint Inhibitoren (ICI) beeinträchtigen und bei zellulären Immuntherapien für den raschen Rückgang von therapeutischen CAR-T-Zellen verantwortlich sein. Durch Eingriffe in diesen neu entdeckten Mechanismus lässt sich möglicherweise die Wirksamkeit von CAR-T-Zell-Therapien verbessern.

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