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  1. Article ; Online: Inhibition of SUMOylation enhances DNA hypomethylating drug efficacy to reduce outgrowth of hematopoietic malignancies.

    Kroonen, Jessie S / de Graaf, Ilona J / Kumar, Sumit / Remst, Dennis F G / Wouters, Anne K / Heemskerk, Mirjam H M / Vertegaal, Alfred C O

    Leukemia

    2023  Volume 37, Issue 4, Page(s) 864–876

    Abstract: Combination therapies targeting malignancies aim to increase treatment efficacy and reduce toxicity. Hypomethylating drug 5-Aza-2'-deoxycytidine (5-Aza-2') enhances transcription of tumor suppressor genes and induces replication errors via entrapment of ... ...

    Abstract Combination therapies targeting malignancies aim to increase treatment efficacy and reduce toxicity. Hypomethylating drug 5-Aza-2'-deoxycytidine (5-Aza-2') enhances transcription of tumor suppressor genes and induces replication errors via entrapment of DNMT1, yielding DNA-protein crosslinks. Post-translational modification by SUMO plays major roles in the DNA damage response and is required for degradation of entrapped DNMT1. Here, we combine SUMOylation inhibitor TAK981 and DNA-hypomethylating agent 5-Aza-2'-deoxycytidine to improve treatment of MYC driven hematopoietic malignancies, since MYC overexpressing tumors are sensitive to SUMOylation inhibition. We studied the classical MYC driven malignancy Burkitt lymphoma, as well as diffuse large B-cell lymphoma (DLBCL) with and without MYC translocation. SUMO inhibition prolonged the entrapment of DNMT1 to DNA, resulting in DNA damage. An increase in DNA damage was observed in cells co-treated with TAK981 and 5-Aza-2'. Both drugs synergized to reduce cell proliferation in vitro in a B cell lymphoma cell panel, including Burkitt lymphoma and DLBCL. In vivo experiments combining TAK981 (25 mg/kg) and 5-Aza-2' (2.5 mg/kg) showed a significant reduction in outgrowth of Burkitt lymphoma in an orthotopic xenograft model. Our results demonstrate the potential of tailored combination of drugs, based on insight in molecular mechanisms, to improve the efficacy of cancer therapies.
    MeSH term(s) Humans ; Burkitt Lymphoma/drug therapy ; Burkitt Lymphoma/genetics ; Burkitt Lymphoma/metabolism ; Decitabine/pharmacology ; Sumoylation ; Azacitidine/pharmacology ; Azacitidine/therapeutic use ; Hematologic Neoplasms ; Lymphoma, Large B-Cell, Diffuse/drug therapy ; Lymphoma, Large B-Cell, Diffuse/genetics ; Lymphoma, Large B-Cell, Diffuse/pathology ; DNA/metabolism ; Cell Line, Tumor
    Chemical Substances Decitabine (776B62CQ27) ; Azacitidine (M801H13NRU) ; DNA (9007-49-2)
    Language English
    Publishing date 2023-02-15
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 807030-1
    ISSN 1476-5551 ; 0887-6924
    ISSN (online) 1476-5551
    ISSN 0887-6924
    DOI 10.1038/s41375-023-01838-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Self-sufficient primary natural killer cells engineered to express T cell receptors and interleukin-15 exhibit improved effector function and persistence.

    van Hees, Els P / Morton, Laura T / Remst, Dennis F G / Wouters, Anne K / Van den Eynde, Astrid / Falkenburg, J H Frederik / Heemskerk, Mirjam H M

    Frontiers in immunology

    2024  Volume 15, Page(s) 1368290

    Abstract: Background: NK cells can be genetically engineered to express a transgenic T-cell receptor (TCR). This approach offers an alternative strategy to target heterogenous tumors, as NK:TCR cells can eradicate both tumor cells with high expression of HLA ... ...

    Abstract Background: NK cells can be genetically engineered to express a transgenic T-cell receptor (TCR). This approach offers an alternative strategy to target heterogenous tumors, as NK:TCR cells can eradicate both tumor cells with high expression of HLA class I and antigen of interest or HLA class I negative tumors. Expansion and survival of NK cells relies on the presence of IL-15. Therefore, autonomous production of IL-15 by NK:TCR cells might improve functional persistence of NK cells. Here we present an optimized NK:TCR product harnessed with a construct encoding for soluble IL-15 (NK:TCR/IL-15), to support their proliferation, persistence and cytotoxic capabilities.
    Methods: Expression of tumor-specific TCRs in peripheral blood derived NK-cells was achieved following retroviral transduction. NK:TCR/IL-15 cells were compared with NK:TCR cells for autonomous cytokine production, proliferation and survival. NK:BOB1-TCR/IL-15 cells, expressing a HLA-B*07:02-restricted TCR against BOB1, a B-cell lineage specific transcription factor highly expressed in all B-cell malignancies, were compared with control NK:BOB1-TCR and NK:CMV-TCR/IL-15 cells for effector function against TCR antigen positive malignant B-cell lines
    Results: Viral incorporation of the interleukin-15 gene into engineered NK:TCR cells was feasible and high expression of the TCR was maintained, resulting in pure NK:TCR/IL-15 cell products generated from peripheral blood of multiple donors. Self-sufficient secretion of IL-15 by NK:TCR cells enables engineered NK cells to proliferate
    Conclusion: This study showed that NK:TCR/IL-15 cells secrete low levels of IL-15 and can proliferate in an environment lacking cytokines. Repeated
    MeSH term(s) Interleukin-15/genetics ; Interleukin-15/immunology ; Interleukin-15/metabolism ; Humans ; Killer Cells, Natural/immunology ; Killer Cells, Natural/metabolism ; Animals ; Mice ; Receptors, Antigen, T-Cell/genetics ; Receptors, Antigen, T-Cell/immunology ; Cytotoxicity, Immunologic ; Cell Proliferation ; Cell Line, Tumor ; Immunotherapy, Adoptive/methods ; Genetic Engineering
    Chemical Substances Interleukin-15 ; Receptors, Antigen, T-Cell ; IL15 protein, human
    Language English
    Publishing date 2024-04-16
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2024.1368290
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Human iPSC-derived preclinical models to identify toxicity of tumor-specific T cells with clinical potential.

    van Amerongen, Rosa A / Morton, Laura T / Chaudhari, Umesh G / Remst, Dennis F G / Hagedoorn, Renate S / van den Berg, Cathelijne W / Freund, Christian / Falkenburg, J H Frederik / Heemskerk, Mirjam H M

    Molecular therapy. Methods & clinical development

    2023  Volume 28, Page(s) 249–261

    Abstract: The balance between safety and efficacy of T cell therapies remains challenging and T cell mediated toxicities have occurred. The stringent selection of tumor-specific targets and careful selection of tumor-specific T cells using T cell toxicity ... ...

    Abstract The balance between safety and efficacy of T cell therapies remains challenging and T cell mediated toxicities have occurred. The stringent selection of tumor-specific targets and careful selection of tumor-specific T cells using T cell toxicity screenings are essential.
    Language English
    Publishing date 2023-01-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2872938-9
    ISSN 2329-0501 ; 2329-0501
    ISSN (online) 2329-0501
    ISSN 2329-0501
    DOI 10.1016/j.omtm.2023.01.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Combining BCMA-targeting CAR T cells with TCR-engineered T-cell therapy to prevent immune escape of multiple myeloma.

    Wachsmann, Tassilo L A / Meeuwsen, Miranda H / Remst, Dennis F G / Buchner, Karen / Wouters, Anne K / Hagedoorn, Renate S / Falkenburg, J H Frederik / Heemskerk, Mirjam H M

    Blood advances

    2023  Volume 7, Issue 20, Page(s) 6178–6183

    MeSH term(s) Humans ; Multiple Myeloma/therapy ; B-Cell Maturation Antigen ; Receptors, Chimeric Antigen/genetics ; T-Lymphocytes ; Cell- and Tissue-Based Therapy
    Chemical Substances B-Cell Maturation Antigen ; Receptors, Chimeric Antigen
    Language English
    Publishing date 2023-08-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2915908-8
    ISSN 2473-9537 ; 2473-9529
    ISSN (online) 2473-9537
    ISSN 2473-9529
    DOI 10.1182/bloodadvances.2023010410
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Antibody-mediated delivery of viral epitopes to redirect EBV-specific CD8

    van der Wulp, Willemijn / Remst, Dennis F G / Kester, Michel G D / Hagedoorn, Renate S / Parren, Paul W H I / van Kasteren, Sander I / Schuurman, Janine / Hoeben, Rob C / Ressing, Maaike E / Bleijlevens, Boris / Heemskerk, Mirjam H M

    Cancer gene therapy

    2023  Volume 31, Issue 1, Page(s) 58–68

    Abstract: Antibody-mediated delivery of immunogenic epitopes to redirect virus-specific ... ...

    Abstract Antibody-mediated delivery of immunogenic epitopes to redirect virus-specific CD8
    MeSH term(s) Humans ; CD8-Positive T-Lymphocytes ; Epitopes ; Herpesvirus 4, Human/genetics ; Neoplasms/therapy ; Immunoconjugates ; Epitopes, T-Lymphocyte
    Chemical Substances Epitopes ; Immunoconjugates ; Epitopes, T-Lymphocyte
    Language English
    Publishing date 2023-11-09
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1212513-1
    ISSN 1476-5500 ; 0929-1903
    ISSN (online) 1476-5500
    ISSN 0929-1903
    DOI 10.1038/s41417-023-00681-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Broadly applicable TCR-based therapy for multiple myeloma targeting the immunoglobulin J chain.

    Meeuwsen, Miranda H / Wouters, Anne K / Wachsmann, Tassilo L A / Hagedoorn, Renate S / Kester, Michel G D / Remst, Dennis F G / van der Steen, Dirk M / de Ru, Arnoud H / van Hees, Els P / Kremer, Martijn / Griffioen, Marieke / van Veelen, Peter A / Falkenburg, J H Frederik / Heemskerk, Mirjam H M

    Journal of hematology & oncology

    2023  Volume 16, Issue 1, Page(s) 16

    Abstract: Background: The immunoglobulin J chain (Jchain) is highly expressed in the majority of multiple myeloma (MM), and Jchain-derived peptides presented in HLA molecules may be suitable antigens for T-cell therapy of MM.: Methods: Using immunopeptidomics, ...

    Abstract Background: The immunoglobulin J chain (Jchain) is highly expressed in the majority of multiple myeloma (MM), and Jchain-derived peptides presented in HLA molecules may be suitable antigens for T-cell therapy of MM.
    Methods: Using immunopeptidomics, we identified Jchain-derived epitopes presented by MM cells, and pHLA tetramer technology was used to isolate Jchain-specific T-cell clones.
    Results: We identified T cells specific for Jchain peptides presented in HLA-A1, -A24, -A3, and -A11 that recognized and lysed JCHAIN-positive MM cells. TCRs of the most promising T-cell clones were sequenced, cloned into retroviral vectors, and transferred to CD8 T cells. Jchain TCR T cells recognized target cells when JCHAIN and the appropriate HLA restriction alleles were expressed, while JCHAIN or HLA-negative cells, including healthy subsets, were not recognized. Patient-derived JCHAIN-positive MM samples were also lysed by Jchain TCR T cells. In a preclinical in vivo model for established MM, Jchain-A1, -A24, -A3, and -A11 TCR T cells strongly eradicated MM cells, which resulted in 100-fold lower tumor burden in Jchain TCR versus control-treated mice.
    Conclusions: We identified TCRs targeting Jchain-derived peptides presented in four common HLA alleles. All four TCRs demonstrated potent preclinical anti-myeloma activity, encouraging further preclinical testing and ultimately clinical development.
    MeSH term(s) Animals ; Mice ; Immunoglobulin J-Chains ; Multiple Myeloma/therapy ; Receptors, Antigen, T-Cell/genetics ; Alleles ; CD8-Positive T-Lymphocytes
    Chemical Substances Immunoglobulin J-Chains ; Receptors, Antigen, T-Cell
    Language English
    Publishing date 2023-02-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2429631-4
    ISSN 1756-8722 ; 1756-8722
    ISSN (online) 1756-8722
    ISSN 1756-8722
    DOI 10.1186/s13045-023-01408-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Erratum: A library of cancer testis specific T cell receptors for T cell receptor gene therapy.

    de Rooij, Marije A J / Remst, Dennis F G / van der Steen, Dirk M / Wouters, Anne K / Hagedoorn, Renate S / Kester, Michel G D / Meeuwsen, Miranda H / Wachsmann, Tassilo L A / de Ru, Arnoud H / van Veelen, Peter A / Verdegaal, Els M E / Falkenburg, J H Frederik / Heemskerk, Mirjam H M

    Molecular therapy oncolytics

    2023  Volume 31, Page(s) 100738

    Abstract: This corrects the article DOI: 10.1016/j.omto.2022.11.007.]. ...

    Abstract [This corrects the article DOI: 10.1016/j.omto.2022.11.007.].
    Language English
    Publishing date 2023-10-23
    Publishing country United States
    Document type Published Erratum
    ISSN 2372-7705
    ISSN 2372-7705
    DOI 10.1016/j.omto.2023.100738
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Comparing CAR and TCR engineered T cell performance as a function of tumor cell exposure.

    Wachsmann, Tassilo L A / Wouters, Anne K / Remst, Dennis F G / Hagedoorn, Renate S / Meeuwsen, Miranda H / van Diest, Eline / Leusen, Jeanette / Kuball, Jürgen / Falkenburg, J H Frederik / Heemskerk, Mirjam H M

    Oncoimmunology

    2022  Volume 11, Issue 1, Page(s) 2033528

    Abstract: Chimeric antigen receptor (CAR) T cell therapies have resulted in profound clinical responses in the treatment of CD19-positive hematological malignancies, but a significant proportion of patients do not respond or relapse eventually. As an alternative ... ...

    Abstract Chimeric antigen receptor (CAR) T cell therapies have resulted in profound clinical responses in the treatment of CD19-positive hematological malignancies, but a significant proportion of patients do not respond or relapse eventually. As an alternative to CAR T cells, T cells can be engineered to express a tumor-targeting T cell receptor (TCR). Due to HLA restriction of TCRs, CARs have emerged as a preferred treatment moiety when targeting surface antigens, despite the fact that functional differences between engineered TCR (eTCR) T and CAR T cells remain ill-defined. Here, we compared the activity of CAR T cells versus engineered TCR T cells in targeting the B cell malignancy-associated antigen CD20 as a function of antigen exposure. We found CAR T cells to be more potent effector cells, producing higher levels of cytokines and killing more efficiently than eTCR T cells in a short time frame. However, we revealed that the increase of antigen exposure significantly impaired CAR T cell expansion, a phenotype defined by high expression of coinhibitory molecules and effector differentiation. In contrast, eTCR T cells expanded better than CAR T cells under high antigenic pressure, with lower expression of coinhibitory molecules and maintenance of an early differentiation phenotype, and comparable clearance of tumor cells.
    MeSH term(s) Antigens, CD20/metabolism ; Humans ; Immunotherapy, Adoptive/methods ; Neoplasm Recurrence, Local ; Receptors, Antigen, T-Cell/genetics ; T-Lymphocytes
    Chemical Substances Antigens, CD20 ; Receptors, Antigen, T-Cell
    Language English
    Publishing date 2022-02-01
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2645309-5
    ISSN 2162-402X ; 2162-4011
    ISSN (online) 2162-402X
    ISSN 2162-4011
    DOI 10.1080/2162402X.2022.2033528
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  9. Article ; Online: T cell receptor engineering of primary NK cells to therapeutically target tumors and tumor immune evasion.

    Morton, Laura T / Wachsmann, Tassilo L A / Meeuwsen, Miranda H / Wouters, Anne K / Remst, Dennis F G / van Loenen, Marleen M / Falkenburg, J H Frederik / Heemskerk, Mirjam H M

    Journal for immunotherapy of cancer

    2022  Volume 10, Issue 3

    Abstract: Background: T cell receptor (TCR)-engineered cells can be powerful tools in the treatment of malignancies. However, tumor resistance by Human Leukocyte antigen (HLA) class I downregulation can negatively impact the success of any TCR-mediated cell ... ...

    Abstract Background: T cell receptor (TCR)-engineered cells can be powerful tools in the treatment of malignancies. However, tumor resistance by Human Leukocyte antigen (HLA) class I downregulation can negatively impact the success of any TCR-mediated cell therapy. Allogeneic natural killer (NK) cells have demonstrated efficacy and safety against malignancies without inducing graft-versus-host-disease, highlighting the feasibility for an 'off the shelf' cellular therapeutic. Furthermore, primary NK cells can target tumors using a broad array of intrinsic activation mechanisms. In this study, we combined the antitumor effector functions of NK cells with TCR engineering (NK-TCR), creating a novel therapeutic strategy to avoid TCR-associated immune resistance.
    Methods: BOB1, is a transcription factor highly expressed in all healthy and malignant B cell lineages, including multiple myeloma (MM). Expression of an HLA-B*07:02 restricted BOB1-specifc TCR in peripheral blood-derived NK cells was achieved following a two-step retroviral transduction protocol. NK-TCR was then compared with TCR-negative NK cells and CD8-T cells expressing the same TCR for effector function against HLA-B*07:02+ B-cell derived lymphoblastoid cell lines (B-LCL), B-cell acute lymphoblastic leukemia and MM cell lines in vitro and in vivo.
    Results: Firstly, TCR could be reproducibly expressed in NK cells isolated from the peripheral blood of multiple healthy donors generating pure NK-TCR cell products. Secondly, NK-TCR demonstrated antigen-specific effector functions against malignancies which were previously resistant to NK-mediated lysis and enhanced NK efficacy in vivo using a preclinical xenograft model of MM. Moreover, antigen-specific cytotoxicity and cytokine production of NK-TCR was comparable to CD8 T cells expressing the same TCR. Finally, in a model of HLA-class I loss, tumor cells with B2M KO were lysed by NK-TCR in an NK-mediated manner but were resistant to T-cell based killing.
    Conclusion: NK-TCR cell therapy enhances NK cell efficacy against tumors through additional TCR-mediated lysis. Furthermore, the dual efficacy of NK-TCR permits the specific targeting of tumors and the associated TCR-associated immune resistance, making NK-TCR a unique cellular therapeutic.
    MeSH term(s) Histocompatibility Antigens Class I ; Humans ; Killer Cells, Natural ; Multiple Myeloma ; Receptors, Antigen, T-Cell/genetics ; Tumor Escape
    Chemical Substances Histocompatibility Antigens Class I ; Receptors, Antigen, T-Cell
    Language English
    Publishing date 2022-03-14
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2719863-7
    ISSN 2051-1426 ; 2051-1426
    ISSN (online) 2051-1426
    ISSN 2051-1426
    DOI 10.1136/jitc-2021-003715
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  10. Article ; Online: PRAME and CTCFL-reactive TCRs for the treatment of ovarian cancer.

    van Amerongen, Rosa A / Tuit, Sander / Wouters, Anne K / van de Meent, Marian / Siekman, Sterre L / Meeuwsen, Miranda H / Wachsmann, Tassilo L A / Remst, Dennis F G / Hagedoorn, Renate S / van der Steen, Dirk M / de Ru, Arnoud H / Verdegaal, Els M E / van Veelen, Peter A / Falkenburg, J H Frederik / Heemskerk, Mirjam H M

    Frontiers in immunology

    2023  Volume 14, Page(s) 1121973

    Abstract: Recurrent disease emerges in the majority of patients with ovarian cancer (OVCA). Adoptive T-cell therapies with T-cell receptors (TCRs) targeting tumor-associated antigens (TAAs) are considered promising solutions for less-immunogenic 'cold' ovarian ... ...

    Abstract Recurrent disease emerges in the majority of patients with ovarian cancer (OVCA). Adoptive T-cell therapies with T-cell receptors (TCRs) targeting tumor-associated antigens (TAAs) are considered promising solutions for less-immunogenic 'cold' ovarian tumors. In order to treat a broader patient population, more TCRs targeting peptides derived from different TAAs binding in various HLA class I molecules are essential. By performing a differential gene expression analysis using mRNA-seq datasets, PRAME, CTCFL and CLDN6 were selected as strictly tumor-specific TAAs, with high expression in ovarian cancer and at least 20-fold lower expression in all healthy tissues of risk. In primary OVCA patient samples and cell lines we confirmed expression and identified naturally expressed TAA-derived peptides in the HLA class I ligandome. Subsequently, high-avidity T-cell clones recognizing these peptides were isolated from the allo-HLA T-cell repertoire of healthy individuals. Three PRAME TCRs and one CTCFL TCR of the most promising T-cell clones were sequenced, and transferred to CD8+ T cells. The PRAME TCR-T cells demonstrated potent and specific antitumor reactivity
    MeSH term(s) Humans ; Female ; Receptors, Antigen, T-Cell ; Antigens, Neoplasm ; CD8-Positive T-Lymphocytes ; Ovarian Neoplasms/therapy ; Ovarian Neoplasms/metabolism ; Peptides/metabolism ; DNA-Binding Proteins/metabolism
    Chemical Substances Receptors, Antigen, T-Cell ; Antigens, Neoplasm ; Peptides ; CTCFL protein, human ; DNA-Binding Proteins ; PRAME protein, human
    Language English
    Publishing date 2023-03-21
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2023.1121973
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