Dimitrios Grenzelias completed his Doctorate in Medicine (MD) from University of Athens .Graduated from Athens Medical School, 1981 Specialty in Hematology, 1991 Research fellow in the Department of Medical Oncology, St Bartholomew’s Hospital, London (Scholarship from Greek Scholarship Foundation), 1/7/1995-31/3/1996 Research fellow in the Department of Medical Oncology in the School of Medicine of Queen Mary and Westfield College in London and Imperial Cancer Research Fund, 1/4/1996-31/8/1996 and 1/9/98-31/3/1999 Senior Research Assistant in the Department of Medical Oncology in the School of Medicine of Queen Mary and Westfield College of London on the research project: Antisense oligonucleotides targeting the joining region of Bcl2/IgH hybrid transcript in Follicular Lymphoma, 1/9/96-31/8/1998 .He is currently working as aHEMATOLOGIST .

 His area of interest is Minimal residual disease with molecular technics in Follicular Lymphoma.  Post transcription modification of Bcl-2 gene expression in Follicular Lymphoma (Antisense oligonucleotides). Genetic predisposition markers in Follicular (TNF gene family mutations). Cloning and expression studies of BRL gene involved in Acute Leukemia pathogenesis.