[New hopes for cancer immunotherapy].
Explore the source record for details and available documents.
Animals↗
Biomedical subjects
Jean-Sébastien Delisle
Publications and source records attributed to Jean-Sébastien Delisle.
T cells targeted against a single minor histocompatibility antigen can cure solid tumors.
T cells responsive to minor histocompatibility (H) antigens are extremely effective in curing leukemia but it remains unknown whether they can eradicate solid tumors. We report that injection of CD8(+) T cells primed against the immunodominant H7(a) minor H antigen can cure established melanomas in mice. Tumor rejection was initiated by preferential extravasation at the tumor site of interferon (IFN)-gamma-producing H7(a)-specific T cells. Intratumoral release of IFN-gamma had two crucial effects: inhibition of tumor angiogenesis and upregulation of major histocompatibility complex (MHC) class I expression on tumor cells. Despite ubiquitous expression of H7(a), dissemination of a few H7(a)-specific T cells in extralymphoid organs caused neither graft-versus-host disease (GVHD) nor vitiligo because host nonhematopoietic cells were protected by their low expression of MHC class I. Our preclinical model yields unique insights into how minor H antigen-based immunotherapy could be used to treat human solid tumors.
Animals↗
Why are Quebec's doctors leaving?
Explore the source record for details and available documents.
Attitude of Health Personnel↗