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About Us

We believe in a diverse range of personnel to bring creative skills, thoughts, and ideas to the table.
Jaroslaw Maciejewski
Jaroslaw Maciejewski, MD, PhD, FACP
PNH SCIENTIFIC ADVISORY BOARD
Chairman, Department of Translational Hematology & Oncology Research, Cleveland Clinic, Professor of Medicine, Cleveland Clinic Lerner College of Medicine, and Associate Director, Lerner Research Institute, USA

Dr. Maciejewski attended medical school at the Medical School Charite, Humboldt University in Berlin, Germany receiving both his medical degree and doctorate from the Institute for Medical Immunology at Humboldt University Medical School. He completed his internal medicine residency at the University of Nevada, School of Medicine in Reno, NV and Hematology Fellowship at the National Institutes of Health Medical Center in Bethesda, MD. He also completed his postdoctoral research fellowship at the Hematology Branch of the National Heart, Lung and Blood Institute (NHLBI) in Bethesda, MD where he later served as Staff Scientist before joining the Cleveland Clinic in 2001 as a Staff Physician and Section Head of Experimental Hematology. In January 2009, Dr. Maciejewski was appointed Chairman of the Department of Translational Hematology & Oncology Research at the Taussig Cancer Institute within the Cleveland Clinic. Dr. Maciejewski has been a long-term member of the American Society of Hematology (ASH) and his research was chosen for presentation during the Plenary Session of the annual ASH Meeting in both 2010 and 2012. Dr. Maciejewski also served as Chairman of the Scientific Committee on Myeloid Neoplasia for the 2014 Annual ASH Meeting last year. He has published over 150 articles as first or senior author, including papers in Nature Genetics, Blood, and Cancer Cell. Dr. Maciejewski has also been a member of the American Society of Clinical Investigation since 2006 and a Fellow of the American College of Physicians since 2009.

Research/Clinical Interests
His clinical areas of expertise include bone marrow failure syndromes (including aplastic anemia, myelodysplastic syndrome, large granular lymphocyte leukemia, paroxysmal nocturnal hemoglobinuria), and myeloid malignancies. His research deals with the molecular pathogenesis of these disorders and deals with various specific aspects of stem cell biology, genetics, cytogenetics and immunobiology. He has developed multiple whole genome scanning technologies for laboratory.