Arjan Diepstra
dr.
As a hematopathologist, I work on diagnostics of all types of hematological malignancies using a comprehensive panel of different techniques. Moreover, my main research interest involves Hodgkin lymphoma, with a strong focus on interactions between tumor cells and the microenvironment. In addition, I also have a long standing interest in genetic susceptibility. My areas of expertise are: immunology, tumor cell biology, genetic association studies and molecular diagnostics in pathology. I actively participate in international (EORTC) and national (HOVON) clinical trials.
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(216)
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(38)
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(7)
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(1)
Supervised work
(12)
The lncRNA KTN1-AS1 co-regulates a variety of Myc-target genes and enhances proliferation of Burkitt lymphoma cells
Published in: Human Molecular Genetics
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10.1093/hmg/ddac159
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Long noncoding RNAs (lncRNAs) are involved in many normal and oncogenic pathways through a diverse repertoire of transcriptional and posttranscriptional regulatory mechanisms. LncRNAs that are under tight regulation of well-known oncogenic transcription factors such as c-Myc (Myc) are likely to be functionally involved in their disease-promoting mechanisms. Myc is a major driver of many subsets of B cell lymphoma and to date remains an undruggable target. We identified three Myc-induced and four Myc-repressed lncRNAs by use of multiple in vitro models of Myc-driven Burkitt lymphoma and detailed analysis...
Melanie Winkle, Mina M Tayari, Klaas Kok, Gerben Duns, Natalia Grot, Marta Kazimierska, Annika Seitz, Debora Jong, Jasper Koerts, Arjan Diepstra, Agnieszka Dzikiewicz-Krawczyk, Christian Steidl, Joost Kluiver, Anke van den Berg
Navitoclax Most Promising BH3 Mimetic for Combination Therapy in Hodgkin Lymphoma
Published in: International Journal of Molecular Sciences
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10.3390/ijms232213751
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The treatment of young patients with Hodgkin lymphoma (HL) is often successful but a significant proportion of patients suffers from late toxicity. In the current era there are new opportunities for less toxic and more targeted treatment options. In this respect, the anti-apoptotic pathway is an attractive target since Hodgkin tumor cells abundantly express components of this pathway. We measured the effect of BH3 mimetics that interfere with anti-apoptotic proteins in cell lines, also in combination with the standard of care chemotherapeutic doxorubicin and the recently discovered preclinically...
Impact of rituximab on treatment outcomes of patients with angioimmunoblastic T-cell lymphoma: a population-based analysis
Published in: European Journal of Cancer
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10.1016/j.ejca.2022.09.008
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Background: Patients with angioimmunoblastic T-cell lymphoma (AITL) are treated with cyclophosphamide, doxorubicin, vincristine and prednisone with or without etoposide (CHO(E)P). In the majority of cases, Epstein–Barr virus (EBV)-positive B-cells are present in the tumour. There is paucity of research examining the effect of rituximab when added to CHO(E)P. In this nationwide, population-based study, we analysed the impact of rituximab on overall response rate (ORR), progression-free survival (PFS) and overall survival (OS) of patients with AITL. Methods: Patients with AITL diagnosed between 2014 and 2020 treated with ≥one cycle...
Frederik O. Meeuwes, Mirian Brink, Marjolein W.M. van der Poel, Marie José Kersten, Mariëlle Wondergem, Pim G.N.J. Mutsaers, Lara Böhmer, Sherida Woei-A-Jin, Otto Visser, Rimke Oostvogels, Patty M. Jansen, Arjan Diepstra, Tjeerd J.F. Snijders, Wouter J. Plattel, Gerwin A. Huls, Joost S.P. Vermaat, Marcel Nijland
Contribution of pathogenic T helper 1 and 17 cells to bursitis and tenosynovitis in polymyalgia rheumatica
Published in: Frontiers in Immunology
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10.3389/fimmu.2022.943574
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Background: Although polymyalgia rheumatica (PMR) is a very common rheumatic inflammatory disease, current insight into the pathobiology of PMR is limited and largely based on studies in blood. We investigated T helper 1 (TH1) and T helper 17 (TH17) cell responses in blood, synovial fluid and bursa tissue of patients with PMR. Materials and methods: Blood samples were collected from 18 patients with new-onset PMR and 32 healthy controls. Synovial fluid was aspirated from the inflamed shoulder bursae or biceps tendon sheath of 13 patients. Ultrasound-guided biopsies of...
Rosanne D Reitsema, William F Jiemy, Lieske Wekema, Annemieke M H Boots, Peter Heeringa, Minke G Huitema, Wayel H Abdulahad, Yannick van Sleen, Maria Sandovici, Caroline Roozendaal, Arjan Diepstra, Thomas Kwee, Bhaskar Dasgupta, Elisabeth Brouwer, Kornelis S M van der Geest