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Arun Seth, MS, PhD

Senior scientist

Sunnybrook Health Sciences Centre
2075 Bayview Ave., Room S2 38
Toronto, ON
M4N 3M5

Phone: 416-480-6100 ext. 63536
Fax: 416-480-5737

Administrative Assistant: Melanie Suttar
416-480-6100 ext. 63537 


  • MS, 1975, organic chemistry, Meerut University, India
  • PhD, 1981, molecular biology, University of New Brunswick, Canada

Appointments and Affiliations:

  • Senior scientist, Biological Sciences, Odette Cancer Research Program, Sunnybrook Research Institute
  • Scientific Director of Molecular Diagnostics, Department of Laboratory Medicine and Molecular Diagnostics, Sunnybrook Health Sciences Centre
  • Academic Director, SRI Genomic Core, Sunnybrook Research Institute
  • Professor, Laboratory Medicine and Pathobiology, University of Toronto
  • Professor, Faculty of Dentistry, University of Toronto
  • Lab Head, molecular profiling site for Exactis innovations personalize my treatment (PMT) program
  • Member, steering committee, OCTANE (Ontario-wide Cancer TArgeted Nucleic acid Evaluation) study.
  • Editor-in-chief, Cancer Genomics and Proteomics

Research Foci:

  • Clinical biomarker development and validation
  • Comprehensive genomic profiling for personalized medicine
  • Precision oncology diagnostics
  • Functional assays for molecular medicine

Research Summary:

The major focus of Dr. Seth’s research is to understand the molecular mechanisms of cancer development and progression to metastasis. His elucidation of molecular targets has resulted in numerous precision diagnostic and therapeutic applications. He has developed and used novel functional assays such as PDX mouse models to understand molecular mechanisms in cancer. Currently, he applies next generation sequencing approaches for early detection of cancer and to develop molecular therapeutic strategies that interfere with the function of key genes and proteins affecting specific cancers. Discovery of personalized targets and biomarkers is another result of his experience and expertise in comprehensive genomics profiling and molecular biology. His extensive collaborations developed over 20 years advance and support research by clinical departments at Sunnybrook Health Sciences Centre as they embrace genomic and other molecular diagnostic approaches to personalized and precise treatment. Selected current projects include microRNA signatures as tumor biomarkers predictive of prostate cancer recurrence and metastasis, characterizing markers of response to therapy in endometrial cancer, pre-operative MRI signal and mutations in colorectal cancers liver metastases.

Selected Publications:

See current publications list at PubMed.

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