001     180069
005     20240229145604.0
024 7 _ |a 10.1093/neuonc/noac138
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024 7 _ |a pmid:35609569
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024 7 _ |a 1522-8517
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024 7 _ |a 1523-5866
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024 7 _ |a altmetric:128901033
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037 _ _ |a DKFZ-2022-01068
041 _ _ |a English
082 _ _ |a 610
100 1 _ |a Friedrich, Mirco
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245 _ _ |a Dysfunctional dendritic cells limit antigen-specific T cell response in glioma.
260 _ _ |a Oxford
|c 2023
|b Oxford Univ. Press
336 7 _ |a article
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336 7 _ |a Journal Article
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336 7 _ |a ARTICLE
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336 7 _ |a Journal Article
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500 _ _ |a #EA:D170#LA:D170# / 2023 Feb 14;25(2):263-276 / HI-TRON
520 _ _ |a Dendritic cells (DC), the most potent professional antigen presenting cells capable of effective cross-presentation, have been demonstrated to license T helper cells to induce anti-tumor immunity in solid tumors. Specific DC subtypes are recruited to the injured brain by microglial chemokines, locally adapting to distinct transcriptional profiles. In isocitrate dehydrogenase type 1 (IDH) mutant gliomas, monocyte-derived macrophages have recently been shown to display an attenuated intratumoral antigen presentation capacity as consequence of the local accumulation of the oncometabolite R-2-hydroxyglutarate. The functionality and the contribution of DC to the IDH-mutant tumor microenvironment (TME) remains unclear.Frequencies and intratumoral phenotypes of human DC in IDH-wildtype and -mutant high-grade gliomas are comparatively assessed by transcriptomic and proteomic profiling. DC functionality is investigated in experimental murine glioblastomas expressing the model antigen ovalbumin. Single-cell sequencing-based pseudotime analyses and spectral flow cytometric analyses are used to profile DC states longitudinally.DC are present in primary and recurrent high-grade gliomas and interact with other immune cell types within the TME. In murine glioblastomas, we find an IDH-status-associated major histocompatibility class I-restricted cross-presentation of tumor antigens by DC specifically in the tumor but not in meninges or secondary lymphoid organs of tumor-bearing animals. In single-cell sequencing-based pseudotime and longitudinal spectral flow cytometric analyses, we demonstrate an IDH-status-dependent differential, exclusively microenvironmental education of DC.Glioma-associated DCs are relevantly abundant in human IDH wildtype and mutant tumors. Glioma IDH mutations result in specifically educated, dysfunctional DCs via paracrine reprogramming of infiltrating monocytes, providing the basis for combinatorial immunotherapy concepts against IDH mutant gliomas.
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650 _ 7 |a IDH mutation
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650 _ 7 |a R-2-HG
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650 _ 7 |a cDC1
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650 _ 7 |a cDC2
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650 _ 7 |a dendritic cell
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650 _ 7 |a glioblastoma
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650 _ 7 |a glioma microenvironment
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700 1 _ |a Hahn, Markus
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700 1 _ |a Michel, Julius
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700 1 _ |a Sankowski, Roman
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700 1 _ |a Kilian, Michael
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700 1 _ |a Kehl, Niklas
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700 1 _ |a Günter, Manina
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700 1 _ |a Bunse, Theresa
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700 1 _ |a Pusch, Stefan
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700 1 _ |a von Deimling, Andreas
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700 1 _ |a Wick, Wolfgang
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700 1 _ |a Autenrieth, Stella E
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700 1 _ |a Prinz, Marco
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700 1 _ |a Platten, Michael
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700 1 _ |a Bunse, Lukas
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773 _ _ |a 10.1093/neuonc/noac138
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