Perelman School of Medicine at the University of Pennsylvania

Jay Fitzgerald Dorsey

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Jay Fitzgerald Dorsey, M.D., Ph.D.

Assistant Professor of Radiation Oncology
Department: Radiation Oncology

Contact information
Department of Radiation Oncology
Perelman Center for Advanced Medicine
Bldg 421 SCTR 8-135
3400 Civic Center Blvd
Philadelphia, PA 19104
Office: (215) 662-2428
Fax: (215) 349-5445
BSChE (Chemical Engineering)
University of Florida, 1995.
MSChE (Chemical Engineering)
University of South Florida, 1997.
University of South Florida College of Medicine, 2003.
University of South Florida (H. Lee Moffitt Cancer Research Institute), 2003.
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Description of Research Expertise

I conduct brain tumor research and specialize in treatment of patients with intracranial malignancies. I have scientific expertise in the areas of signal transduction, molecular therapeutics, brain tumor biology, and radiation biology. As a translational researcher, I am actively involved in basic mechanistic studies, the application of in vivo imaging methods to preclinical studies in relevant biological models of cancer, and early phase clinical trials in intracranial malignancies (as lead principal investigator). In a broad sense, my research focuses on understanding the underlying mechanisms whereby cancers demonstrate resistance to radiation and chemotherapy and characterizing normal cell/tissue responses to radiation therapy. This information will give us a framework to develop ways to target oncogenic pathways that lead to therapeutic resistance and identify potential molecular interventions that may reduce the normal tissue complications of radiation therapy. One major focus concerns the elucidation of the mechanism whereby ER stress modulates death receptor expression and initiation of apoptosis. A second area of interest is the application of in vivo imaging methods to preclinical studies in relevant biological models of cancer with a focus on high-grade brain tumor biology. This includes evaluation of the efficacy of novel therapeutic combinations in preclinical animal models and determination of timing, dosage, and in vivo mechanisms of anti-tumor action. In summary, I have a demonstrated record of successful and productive research projects in highly relevant areas of cancer, molecular oncology, and radiation biology.

Description of Clinical Expertise

I am a board-certified radiation oncologist who specializes in the treatment of cancers of the central nervous system with conventional radiation, IMRT, or stereotactic radiation. I am certified to perform gamma knife radiosurgery.

Selected Publications

Ajlan W. Al Zaki, David P. Cormode, Andrew Tsourkas, Jay F. Dorsey: Nanoparticle-enhanced Radiotherapy. Increasing the Therapeutic Ratio of Radiotherapy. Philip Tofilon and Kevin Camphausen (eds.). Springer, 2016.

Sun L, Joh DY, Al Zaki A, Stangl M, Murty S, Davis JJ, Baumann BC, Alonso-Basanta M, Kao GD, Tsourkas A, Dorsey JF: Theranostic application of mixed gold and superparamagnetic iron oxide nanoparticle micelles in glioblastoma multiforme. J BIOMED NANOTECHNOL 12: 347-356, 2016 Notes: in press.

Chowdhury IH, Ojerholm E, McMillan MT, Miller D, Kolker JD, Kurtz G, Dorsey JF, Nagda SN, Geiger GA, Brem S, O'Rourke DM, Zager EL, Gangadhar T, Schuchter L, Lee JY, Alonso-Basanta M: Novel risk scores for survival and intracranial failure in patients treated with radiosurgery alone to melanoma brain metastases. RADIAT ONCOL 10(1), December 2015.

Xu MJ, Dorsey JF, Amaravadi R, Karakousis G, Simone CB 2nd, Xu X, Xu W, Carpenter EL, Schuchter L, Kao GD: Circulating Tumor Cells, DNA, and mRNA: Potential for Clinical Utility in Patients With Melanoma. THE ONCOLOGIST November 2015.

Vogel J, Ojerholm E, Hollander A, Briola C, Mooij R, Bieda M, Kolker J, Nagda S, Geiger G, Dorsey J, Lustig R, O'Rourke DM, Brem S, Lee J, Alonso-Basanta M: Intracranial control after Cyberknife radiosurgery to the resection bed for large brain metastases. RADIAT ONCOL 10(1), October 2015.

Simone CB and Dorsey JF: Additional data in the debate on stage I non-small cell lung cancer: surgery versus stereotactic ablative radiotherapy. ANN TRANSL MED 2015 Notes: In press: doi: 10.3978/j.issn.2305-5839.2015.07.26.

McQuade C, Al Zaki A, Desai Y, Vido M, Sakhuja T, Cheng Z, Hickey RJ, Joh D, Park SJ, Kao G, Dorsey JF, Tsourkas A. : A Multifunctional Nanoplatform for Imaging, Radiotherapy, and the Prediction of Therapeutic Response. SMALL Sep 29 2014.

Dorsey JF, Kao GD, MacArthur KM, Ju M, Steinmetz D, Wileyto EP, Simone CB 2nd, Hahn SM. : Tracking viable circulating tumor cells (CTCs) in the peripheral blood of non-small cell lung cancer patients undergoing definitive radiation therapy: Pilot study results. CANCER Sep 19 2014.

Ju M, Kao G, Christodouleas J, Guzzo T, Keefe S, Hahn SM, Dorsey JF: Application of a Telomerase-based Circulating Tumor Cell (CTC) assay in bladder cancer patients receiving post-operative Radiation Therapy: A case study. CANCER BIOLOGY & THERAPY 15(6), Jun 1 2014.

Ojerholm E, Lee JYK, Kolker J, Dorsey JF, Alonso-Basanta M: Gamma knife radiosurgery to 4 or more brain metastases in patients without prior intracranial radiation or surgery. CANCER MEDICINE 3(3): 565-71, Jun 2014.

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Last updated: 01/21/2016
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