Baumann, T.* ; Dunkel, A.* ; Schmid, C.* ; Schmitt, S.* ; Hiltensperger, M.* ; Lohr, K.* ; Laketa, V.* ; Donakonda, S.* ; Ahting, U.* ; Lorenz-Depiereux, B. ; Heil, J.E.* ; Schredelseker, J.* ; Simeoni, L.* ; Fecher, C.* ; Körber, N. ; Bauer, T. ; Hüser, N.* ; Hartmann, D.* ; Laschinger, M.* ; Eyerich, K.* ; Eyerich, S. ; Anton, M.* ; Streeter, M.* ; Wang, T.* ; Schraven, B.* ; Spiegel, D.* ; Assaad, F.* ; Misgeld, T.* ; Zischka, H. ; Murray, P.J.* ; Heine, A.* ; Heikenwälder, M.* ; Korn, T.* ; Dawid, C.* ; Hofmann, T.* ; Knolle, P.A.* ; Höchst, B.*
Regulatory myeloid cells paralyze T cells through cell-cell transfer of the metabolite methylglyoxal.
Nat. Immunol. 21, 555-566 (2020)
Regulatory myeloid immune cells, such as myeloid-derived suppressor cells (MDSCs), populate inflamed or cancerous tissue and block immune cell effector functions. The lack of mechanistic insight into MDSC suppressive activity and a marker for their identification has hampered attempts to overcome T cell inhibition and unleash anti-cancer immunity. Here, we report that human MDSCs were characterized by strongly reduced metabolism and conferred this compromised metabolic state to CD8(+) T cells, thereby paralyzing their effector functions. We identified accumulation of the dicarbonyl radical methylglyoxal, generated by semicarbazide-sensitive amine oxidase, to cause the metabolic phenotype of MDSCs and MDSC-mediated paralysis of CD8(+) T cells. In a murine cancer model, neutralization of dicarbonyl activity overcame MDSC-mediated T cell suppression and, together with checkpoint inhibition, improved the efficacy of cancer immune therapy. Our results identify the dicarbonyl methylglyoxal as a marker metabolite for MDSCs that mediates T cell paralysis and can serve as a target to improve cancer immune therapy.Myeloid-derived suppressor cells (MDSCs) residing within tumors can impede immune responses. Knolle and colleagues show that MDSCs poison immune cells by producing methylglyoxal, which functionally alters their cellular metabolism and hence their effector responses.
Impact Factor
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Hepatocellular-carcinoma Patients; Suppressor-cells; Dicarbonyl Stress; Amine Oxidase; Effector; Immunotherapy; Aminoacetone; Inhibition; Glycation; Proteins
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2020
Prepublished im Jahr
HGF-Berichtsjahr
2020
ISSN (print) / ISBN
1529-2908
e-ISSN
1529-2916
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 21,
Heft: 5,
Seiten: 555-566
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Nature Publishing Group
Verlagsort
75 Varick St, 9th Flr, New York, Ny 10013-1917 Usa
Tag d. mündl. Prüfung
0000-00-00
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Gutachter
Prüfer
Topic
Hochschule
Hochschulort
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Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
30203 - Molecular Targets and Therapies
30202 - Environmental Health
Forschungsfeld(er)
Genetics and Epidemiology
Immune Response and Infection
Allergy
Enabling and Novel Technologies
PSP-Element(e)
G-500700-001
G-502700-003
G-502700-002
G-505490-001
G-505200-003
Förderungen
Copyright
Erfassungsdatum
2020-05-15