Dr. Gregory A. Masters

Dr. Christine Pratilas is a pediatric medical oncologist at the Sidney Kimmel Comprehensive Cancer Center and Associate Professor of Oncology, Pediatrics & Cellular and Molecular Medicine at the Johns Hopkins University School of Medicine. She joined the Hopkins pediatric sarcoma team in 2014. Dr. Pratilas received her undergraduate degree in Biology from Drew University in New Jersey and her medical degree from UMDNJ - Robert Wood Johnson Medical School (now Rutgers University), where she also completed her internship and residency from 1999 to 2002. From 2002 to 2005 she was a fellow in hematology and oncology in the Memorial Sloan Kettering Cancer Center (MSKCC) Department of Pediatrics, and in the Department of Pediatric Hematology and Oncology at New York Weill Cornell Medical Center. She was a postdoctoral research fellow in Dr. Neal Rosen’s Molecular Oncogenesis Laboratory at MSKCC. From 2006 to 2014 she was attending in Pediatric Oncology at MSKCC, specializing in developmental therapeutics & sarcoma. She has been the director of the pediatric sarcoma program at Hopkins since 2018. Dr. Pratilas focuses her research on cancer-associated pathways and signal transduction, which involves figuring out how a cell’s internal molecular pathways work, and how those pathways can be molecularly controlled. This knowledge is the basis for developing promising new molecularly targeted cancer therapies, which is the focus of Dr. Pratilas’s research. Among her important scientific contributions is advancing our understanding of how certain proteins that can be mutated in cancer, known as RAF kinases (specifically BRAF), affect a cancer cell’s behavior. The research in Dr. Pratilas' laboratory is focused on RAS signal transduction pathways, concentrating on pediatric sarcomas such as rhabdomyosarcoma and malignant peripheral nerve sheath tumors, in order to develop novel therapeutics for children with these tumors. Dr. Pratilas is rated as a Distinguished provider by MediFind in the treatment of Malignant Peripheral Nerve Sheath Tumor. Her top areas of expertise are Malignant Peripheral Nerve Sheath Tumor, Neurofibromatosis Type 1 (NF1), Neurofibromatosis, Adult Soft Tissue Sarcoma, and Osteotomy.

Dr. Kathryn Lemberg is an Assistant Professor of Oncology and Pediatrics at the Sidney Kimmel Comprehensive Cancer Center. Her research, conducted with Johns Hopkins Drug Discovery, focuses on tumor metabolism and the development of new metabolic inhibitors to treat cancer. She has investigated novel glutamine antagonists in preclinical models of RAS-driven solid tumors. She is also interested in the effects of tumor metabolism on patient growth and development. Dr. Lemberg completed pediatrics residency training at Johns Hopkins and pediatric hematology-oncology fellowship training in the joint Johns Hopkins/National Cancer Institute program. She received her M.D. and Ph.D. degrees from the Medical Scientist Training Program at Columbia University in New York, where her graduate research focused on ferroptosis, a novel oxidative cell death in cancer models. Dr. Lemberg sees pediatric and young adult sarcoma patients as part of the sarcoma team and has additional clinical focus on neurofibromatosis type I related solid tumors. Dr. Lemberg is rated as an Advanced provider by MediFind in the treatment of Malignant Peripheral Nerve Sheath Tumor. Her top areas of expertise are Malignant Peripheral Nerve Sheath Tumor, Neurofibromatosis Type 1 (NF1), Neurofibromatosis, and Adult Soft Tissue Sarcoma.

Dr. Meyer will serve as the lead medical oncologist for adult sarcoma patients, and will focus on building the Adult Sarcoma and Connective Tissue Oncology Program. In collaboration with pediatric oncologist David Loeb, M.D., Ph.D., and orthopaedic surgeon Kristy Weber, M.D., Meyer will bring novel therapies to the clinic for sarcoma patients. Meyer received his bachelors and masters degrees in cell and molecular biology from Stanford University. From there, he joined the Medical Scientist Training Program at Baylor College of Medicine and earned his medical degree followed by a doctorate in immunology. Meyer completed his residency at the University of Maryland and served as chief resident in medicine from 2004-2005. Afterward, he joined our fellowship program in medical oncology and has been working in the laboratory of Jonathan Powell, M.D., Ph.D., on projects relating to the characterization of molecular regulatory pathways involved in T-cell activation and energy. As a third-year fellow, Meyer served as the chief fellow for our Training Programs in Hematology and Medical Oncology and he received a Young Investigator Award from the American Society of Clinical Oncology in 2010. Dr. Meyer is rated as a Distinguished provider by MediFind in the treatment of Malignant Peripheral Nerve Sheath Tumor. His top areas of expertise are Mesenchymoma, Undifferentiated Pleomorphic Sarcoma, Bone Tumor, and Ganglioneuroblastoma.