AG Zelinskyy
Forschungsschwerpunkte
- Zytotoxische Virus-spezifische T-Zellen
- Regulation von Virus-spezifischen T-Zellen
- Checkpoint-Rezeptoren
- Regulatorische T-Zellen
- Immuntherapie gegen retrovirale Infektionen und Virus-induzierte Tumoren
Aktivierte zytotoxische T-Zellen sind für die erfolgreiche Eliminierung Virus-infizierter Zellen und Tumoren erforderlich. Andererseits können zytotoxische Zellen gefährlich sein und immunvermittelte Pathologien verursachen. Verschiedene Regulationsmechanismen steuern gleichzeitig die Expansion und Aktivierung dieser Effektorzellen, um Virus-infizierte Zellen oder Tumorzellen zu eliminieren und dabei den Schaden in dem infizierten Organ zu minimieren.
Checkpoint-Rezeptoren, regulatorische T-Zellen (Treg) und MDSC (myeloid-derived suppressor cells) beeinflussen gleichzeitig die Expansion und die Funktionalität von zytotoxischen T-Zellen. Eine Entschlüsselung der Effekte einzelner regulatorischer Mechanismen ist nur in einem Tiermodell möglich. Daten von mit dem „Friend Murine Leukemia Virus“ (FV) infizierten Mäusen erlauben einen tiefen Einblick in verschiedene regulatorische Mechanismen bei akuten und chronischen antiviralen Antworten. Diese Kenntnisse liefern die Grundlagen für eine erfolgreiche antivirale Immuntherapie ähnlich den sehr erfolgreichen Behandlungen von Melanomen, Lungenkrebs und anderen malignen Erkrankungen mit auf Checkpoint-Rezeptoren gerichteten Therapien.
Arbeitsgruppe

Leiter
Dr. rer. nat. Gennadiy Zelinskyy
Tel.: +49 (0)201 723 3541
E-Mail: gennadiy.zelinskyy@uni-due.de

Tanja Werner, BTA
Tel.: +49 (0)201 723 3583
E-Mail: tanja.werner@uni-due.de
Publikationen
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HLA class II loss and JAK1/2 deficiency coevolve in melanoma leading to CD4 T cell and IFNγ cross-resistanceIn: Clinical Cancer Research Jg. 29 (2023) Nr. 15, S. 2894 - 2907Online Volltext: dx.doi.org/
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Macrophage migration inhibitory factor receptor CD74 expression is associated with expansion and differentiation of effector T cells in COVID-19 patientsIn: Frontiers in Immunology Jg. 14 (2023) 1236374Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Patients with SARS-CoV-2-Induced Viral Sepsis Simultaneously Show Immune Activation, Impaired Immune Function and a Procoagulatory Disease StateIn: Vaccines Jg. 11 (2023) Nr. 2, 435Online Volltext: dx.doi.org/ (Open Access)
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Polymorphism of tmprss2 (rs12329760) and severity of COVID-19 in the Ukrainian population : ResponseIn: Acta Biomedica Jg. 94 (2023) Nr. 2, e2023109Online Volltext: dx.doi.org/
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Polymorphism of tmprss2 (rs12329760) but not ace2 (rs4240157), tmprss11a (rs353163) and cd147 (rs8259) is associated with the severity of COVID-19 in the Ukrainian populationIn: Acta Biomedica Jg. 94 (2023) Nr. 1, e2023030Online Volltext: dx.doi.org/ (Open Access)
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Regulatory T cells suppress the motility of cytotoxic T cells in Friend retrovirus-infected miceIn: JCI Insight Jg. 8 (2023) Nr. 13, e167482Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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SARS-CoV-2-specific T cell responses wane profoundly in convalescent individuals 10 months after primary infectionIn: Virologica Sinica Jg. 38 (2023) Nr. 4, S. 606 - 619Online Volltext: dx.doi.org/ (Open Access)
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The Role of the Inhibitory Ligand HVEM and Its Receptors CD160 and BTLA in the Regulation of Anti-retroviral T Cell ResponsesIn: Frontiers in Virology Jg. 2 (2022) 836291Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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A combination of anti-pd-l1 treatment and therapeutic vaccination facilitates improved retroviral clearance via reactivation of highly exhausted t cellsIn: mBio Jg. 12 (2021) Nr. 1, S. e02121 - 20Online Volltext: dx.doi.org/ (Open Access)
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Analysis of the long-term impact on cellular immunity in COVID-19-recovered individuals reveals a profound nkt cell impairmentIn: mBio Jg. 12 (2021) Nr. 2, S. e00085 - 21Online Volltext: dx.doi.org/ (Open Access)
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Characterization of SARS-CoV-2-Specific Humoral and Cellular Immune Responses Induced by Inactivated COVID-19 Vaccines in a Real-World SettingIn: Frontiers in Immunology Jg. 12 (2021) 802858Online Volltext: dx.doi.org/ (Open Access)
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Combination immunotherapy with anti-PD-L1 antibody and depletion of regulatory T cells during acute viral infections results in improved virus control but lethal immunopathologyIn: PLoS Pathogens Jg. 16 (2020) Nr. 3, e1008340Online Volltext: dx.doi.org/ (Open Access)
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Critical role of PD-L1 expression on non-tumor cells rather than on tumor cells for effective anti-PD-L1 immunotherapy in a transplantable mouse hematopoietic tumor modelIn: Cancer Immunology, Immunotherapy (2020)Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Differential expansion of circulating human MDSC subsets in patients with cancer, infection and inflammationIn: Journal for ImmunoTherapy of Cancer Jg. 8 (2020) Nr. 2, S. e001223Online Volltext: dx.doi.org/ (Open Access)
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Erratum for Westmeier et al., "Impaired Cytotoxic CD8⁺ T Cell Response in Elderly COVID-19 Patients"In: mBio Jg. 11 (2020) Nr. 5, S. 02243 - 02220Online Volltext: dx.doi.org/ (Open Access)
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Impaired cytotoxic CD8⁺ T cell response in elderly COVID-19 patientsIn: mBio Jg. 11 (2020) Nr. 5, S. e02243 - 20Online Volltext: dx.doi.org/ (Open Access)
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Restriction of exogenous DNA expression by SAMHD1In: Science Bulletin Jg. 65 (2020) Nr. 7, S. 573 - 586Online Volltext: dx.doi.org/ Online Volltext
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Friend retrovirus studies reveal complex interactions between intrinsic, innate and adaptive immunityIn: FEMS Microbiology Reviews Jg. 43 (2019) Nr. 5, S. 435 - 456Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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MDSCs in infectious diseases: regulation, roles, and readjustmentIn: Cancer Immunology, Immunotherapy Jg. 68 (2019) Nr. 4, S. 673 - 685Online Volltext: dx.doi.org/ (Open Access)
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The PD-1/PD-L1 Pathway Affects the Expansion and Function of Cytotoxic CD8⁺ T Cells During an Acute Retroviral InfectionIn: Frontiers in Immunology Jg. 10 (2019) 54Online Volltext: dx.doi.org/ (Open Access)
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CEACAM1 promotes CD8⁺ T cell responses and improves control of a chronic viral infectionIn: Nature Communications Jg. 9 (2018) 2561Online Volltext: dx.doi.org/ (Open Access)
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Imaging of cytotoxic antiviral immunity while considering the 3R principle of animal researchIn: Journal of Molecular Medicine Jg. 96 (2018) Nr. 3-4, S. 349 - 360Online Volltext: dx.doi.org/
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Combined toll-like receptor 3/7/9 deficiency on host cells results in T-cell-dependent control of tumour growthIn: Nature Communications Jg. 8 (2017) S. 14600Online Volltext: dx.doi.org/ (Open Access)
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Differential inhibitory receptor expression on T cells delineates functional capacities in chronic viral infectionIn: Journal of Virology Jg. 91 (2017) Nr. 23, S. e01263 - 17Online Volltext: dx.doi.org/ Online Volltext (Open Access)
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Fas Ligand-mediated cytotoxicity of CD4+ T cells during chronic retrovirus infectionIn: Scientific Reports Jg. 7 (2017) S. 7785Online Volltext: dx.doi.org/ (Open Access)
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Granulocytic myeloid-derived suppressor cells suppress virus-specific CD8+ T cell responses during acute Friend retrovirus infectionIn: Retrovirology Jg. 14 (2017) 42Online Volltext: dx.doi.org/ (Open Access)
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The IL-1R/TLR signaling pathway is essential for efficient CD8+ T-cell responses against hepatitis B virus in the hydrodynamic injection mouse modelIn: Cellular & Molecular Immunology Jg. 14 (2017) Nr. 12, S. 997 - 1008Online Volltext: dx.doi.org/ (Open Access)
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CD137 agonist therapy can reprogram regulatory T cells into cytotoxic CD4+ T cells with antitumor activityIn: The Journal of Immunology (JI) Jg. 196 (2016) Nr. 1, S. 484 - 492Online Volltext: dx.doi.org/ (Open Access)
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CD169+ macrophages regulate PD-L1 expression via type I interferon and thereby prevent severe immunopathology after LCMV infectionIn: Cell Death and Disease Jg. 7 (2016) Nr. 11, e2446Online Volltext: dx.doi.org/ (Open Access)
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Correction: PD-L1 Expression on Retrovirus-Infected Cells Mediates Immune Escape from CD8+ T Cell KillingIn: PLoS Pathogens Jg. 11 (2015) Nr. 12, e1005364Online Volltext: dx.doi.org/ (Open Access)
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PD-L1 Expression on Retrovirus-Infected Cells Mediates Immune Escape from CD8+ T Cell KillingIn: PLoS Pathogens Jg. 11 (2015) Nr. 10, e1005224Online Volltext: dx.doi.org/ (Open Access)
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CD8+ T Cells Are Essential for Controlling Acute Friend Retrovirus Infection in C57BL/6 MiceIn: Journal of Virology Jg. 88 (2014) Nr. 9, S. 5200 - 5201Online Volltext: dx.doi.org/
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The phenotype and activation status of regulatory T cells during Friend retrovirus infectionIn: Virologica Sinica Jg. 29 (2014) Nr. 1, S. 48 - 60Online Volltext: dx.doi.org/
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CD4⁺ T cells develop antiretroviral cytotoxic activity in the absence of regulatory T cells and CD8⁺ T cellsIn: Journal of Virology Jg. 87 (2013) Nr. 11, S. 6306 - 6313Online Volltext: dx.doi.org/ Online Volltext
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Combining Regulatory T Cell Depletion and Inhibitory Receptor Blockade Improves Reactivation of Exhausted Virus-Specific CD8+ T Cells and Efficiently Reduces Chronic Retroviral LoadsIn: PLoS Pathogens Jg. 9 (2013) Nr. 12, S. e1003798Online Volltext: dx.doi.org/ (Open Access)
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Natural regulatory T cells inhibit production of cytotoxic molecules in CD8+ T cells during low-level Friend retrovirus infectionIn: Retrovirology Jg. 10 (2013) Nr. 1, 109Online Volltext: dx.doi.org/ (Open Access)
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TLR1/2 ligand-stimulated mouse liver endothelial cells secrete IL-12 and trigger CD8+ T cell immunity in vitroIn: The Journal of Immunology (JI) Jg. 191 (2013) Nr. 12, S. 6178 - 6190Online Volltext: dx.doi.org/
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Tumor-specific CD4+ T cells develop cytotoxic activity and eliminate virus-induced tumor cells in the absence of regulatory T cellsIn: Cancer Immunology, Immunotherapy Jg. 62 (2013) Nr. 2, S. 257 - 271Online Volltext: dx.doi.org/
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Transient depletion of regulatory T cells in transgenic mice reactivates virus-specific CD8⁺ T cells and reduces chronic retroviral set pointsIn: Proceedings of the National Academy of Sciences of the United States of America (PNAS) Jg. 108 (2011) Nr. 6, S. 2420 - 2425Online Volltext: dx.doi.org/ (Open Access)
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Virus-Specific CD8+ T Cells Upregulate Programmed Death-1 Expression during Acute Friend Retrovirus Infection but Are Highly Cytotoxic and Control Virus ReplicationIn: The Journal of Immunology (JI) Jg. 187 (2011) Nr. 7, S. 3730 - 3737Online Volltext: dx.doi.org/
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Mechanisms of control of acute Friend virus infection by CD4⁺ T helper cells and their functional impairment by regulatory T cellsIn: Journal of General Virology Jg. 91 (2010) Nr. 2, S. 440 - 451Online Volltext: dx.doi.org/
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Polyinosinic-polycytidylic acid treatment of Friend retrovirus-infected mice improves functional properties of virus-specific T cells and prevents virus-induced diseaseIn: The Journal of Immunology (JI) Jg. 185 (2010) Nr. 10, S. 6179 - 6189Online Volltext: dx.doi.org/ (Open Access)