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MD PhD M.W. Bekkenk

Position
Medical Specialist
Main activities
Education, Patient care, Research
Specialisation
Dermato-oncology, (Mohs) surgery, pigment disorders, Phototherapy
Focus of research

Pigmentcell reasearch and more specific melanoma

Non-melanoma skin cancer, optimization of care for these patients

Vitiligo

Key publications
  • Primary and secondary cutaneous CD30(+) lymphoproliferative disorders: a report from the Dutch Cutaneous Lymphoma Group on the long-term follow-up data of 219 patients and guidelines for diagnosis and treatment Blood 2000;95 (12):3653-3661 [PubMed]
  • Grange F., Bekkenk M. W., Wechsler J., Meijer C. J., Cerroni L., Bernengo M., Bosq J., Hedelin G., Fink Puches R., van Vloten W. A., Joly P., Bagot M., Willemze R. Prognostic factors in primary cutaneous large B-cell lymphomas: a European multicenter study Journal of clinical oncology 2001;19 (16):3602-3610 [PubMed]
  • Bekkenk Marcel W., Vermeer Maarten H., Jansen Patty M., van Marion Ariënne M. W., Canninga-van Dijk Marijke R., Kluin Philip M., Geerts Marie-Louise, Meijer Chris J. L. M., Willemze Rein Peripheral T-cell lymphomas unspecified presenting in the skin: analysis of prognostic factors in a group of 82 patients Blood 2003;102 (6):2213-2219 [PubMed]
  • Bekkenk M. W., Jansen P. M., Meijer C. J. L. M., Willemze R. CD56+ hematological neoplasms presenting in the skin: a retrospective analysis of 23 new cases and 130 cases from the literature Annals of oncology 2004;15 (7):1097-1108 [PubMed]
All Publications
Curriculum Vitae
2013-present Dermatologist at AMC Amsterdam

2013-present Member of Dutch CME board (NVDV)

2010-present Chairman Dutch-Flemish CME board (SNNDV)

2005-present Chairman Tumor Focus Group Skincancer IK-NL (Western part of the Netherlands)

2012-2014 Dermatologist and Mohs surgeon at Mohs Klinieken Amsterdam

2012 Inventor of Huidmonitor app, winner Healthapp Award 2012

2011-2013 Mohs Surgery training at Mohs Klinieken Amsterdam

2005-2012 Dermatologist at Reinier de Graaf Gasthuis, Delft

2000- 2005: Resident dermatology LUMC (Leiden)

1998- 2005 PhD study titled: Clinicopathologic studies underlying the WHO-EORTC classification and new guidelines for the treatment of cutaneous lymphomas.

1998-January 2000: Resident Dermatology, VUmc (Amsterdam) 

1998: Resident Internal Medicine,Hilversum

1995: Dipartimento di Farmacologia preclinica e clinica, Universita degli studi di Firenze (Florence) under Prof. Enrico Mini (Oncologist).

1993-1995:Department of Oncology and Pediatrics VUmc Amsterdam. Classification and circumvention of methotrexate resistance in childhood leukemia.

1989-1997: Medicine Vrije Universiteit Amsterdam

Research programmes

Prof. PhD R.M. Luiten (Pigment cell disorders of the skin)

Luiten's research team is specialized in the immunopathogenesis and treatment of pigment cell disorders of the skin, including vitiligo and melanoma. Luiten's research has clearly established a positive relation between vitiligo and melanoma regression, by showing that 1) vitiligo patients have a three-fold decreased life-time risk of developing melanoma , 2) vitiligo is an autoimmunity against melanocytes in the skin, leading to loss of skin pigmentation, 3) melanoma patients who develop vitiligo, referred to as melanoma-associated leucoderma or vitiligo (MAL), have immunity reactive with both melanocytes and melanoma cells, 4) the appearance of MAL in melanoma patients is associated with favorable clinical outcome (progression free- and overall survival), and 5) vitiligo-inducing compound monobenzone combined with imiquimod and/or CpG induces anti-melanoma immunity and suppresses melanoma growth in mice and patients. This highlights vitiligo as a favorable sign for melanoma patients and the importance of its mechanism of action for melanoma treatment. The group has developed a new melanoma therapy consisting of monobenzone and immune stimulation (patent granted, preclinical and clinical proof-of-concept obtained). Their investigator-initiated clinical trial at the NKI-AVL shows local clinical responses of skin metastases and successful induction of anti-melanoma immunity in most patients. This therapy is developed further clinically. New projects include biomarker research for response of melanoma patients to immune checkpoint inhibitors, targeting of melanoma cell heterogeneity by vaccination immunotherapy and diagnosis and treatment of lentigo maligna. Vitiligo clinical research aims at improving skin suspension transplantation therapy and the development of  scoring systems for vitiligo disease activity. Biomarkers for the differential diagnosis of vitiligo and melanoma-associated vitiligo are studied, applicable in preventing immunesuppressive therapy in vitiligo patients with an undiagnosed melanoma. Luiten's group joined forces of the NFU expertise center on Pigment Disorders (AMC) with the skin tissue engineering expertise of prof Gibbs (VUMC), to apply this technology in vitiligo and melanoma immunotherapy research. 

 

Faculty
PhD W.J. Bakker
MD PhD M.W. Bekkenk
MD PhD M.A. Middelkamp Hup
MD PhD A. Wolkerstorfer

Postdocs
PhD W. Ouwerkerk

Others
BEng S. Chielie
BEng G. Krebbers
N.O.P. van Uden