Spandidos Publications

Cornelis Frederikus Maria Sier

Leiden University Medical Centre, Netherlands

Short Bio

Kees (short for Cornelis) is a molecular biologist especially focused on cell-cell interactions in cancer. He studied biology at the Free University of Amsterdam (NL) and obtained his PhD in 1993 at the Leiden University Medical Centre (Department of Gastroenterology and Hepatology) and TNO-Gaubius Institute in Leiden, NL. After a post-doc in the same department Kees moved to the Università Vita Saluta San Raffaele in Milan (IT), where he stayed for 5 years. In his Italian period he visited several institutes, including the Mario Negri Institute for Pharmacological Research (Milan, IT) and the Finsen Laboratory, a basic cancer research department in Copenhagen (DK). He returned to the Leiden University Medical Centre performing research projects in the departments of Pathology, Gastroenterology, and Trauma Surgery. From the summer of 2010 Kees joined the CTMM consortium MUSIS, and became associated member of the Image-guided Oncologic Surgery group (Head, dr. Alexander Vahrmeijer) of the Leiden University Medical Center. Since 2019 he joined Percuros BV, Leiden, NL, a small-medium sized high-tech enterprise focusing on medical research and development. Kees’ main focus is the evaluation of tumor markers as target for image-guided surgery and diagnosis and the subsequent development of targeted probes against selected candidates.