Dr. Stefan Keller

I am a veterinary pathologist with specialty training in immunopathology and I have a keen interest in lymphocyte biology, both from a mechanistic as well as a diagnostic perspective. I completed veterinary school in Berlin, Germany (2003); I did a combined doctoral degree and residency in anatomic pathology at the University of Zürich, Switzerland, which I completed with a degree (2007) and ECVP board certification (2008), respectively. I served as a senior resident in anatomic pathology at the University of California, Davis (UCD), USA (2008-2009) and was a postdoctoral fellow (2009-2011) and PhD candidate (2011-2015) in the laboratory of Dr. Peter Moore at UCD. I have been interested in and working on lymphoproliferative diseases since my doctoral work with Dr. Franco Guscetti in Zürich but have been most impacted by Dr. Peter Moore’s mentorship at UCD. Since 2015, I am an assistant professor of anatomic pathology in the Department of Pathobiology, Ontario Veterinary College.

Current Lab Members

Mei-Hua Hwang

Mei arrived at the Department of Pathobiology in Fall of 2015 after completing an Honours Biology program at McMaster University with a physiology specialization. Her undergraduate thesis focused on the genetic and behavioural characterization associated with unusual nesting phenomena in herring gulls in Hamilton Harbour. Now engaged in a Master’s thesis project, she is working toward generating a comprehensive library for canine B-cell immunoglobulin genes as part of a larger objective: to develop an improved, sequencing-based diagnostic test for canine lymphoma and leukemia.

Outside of the lab, Mei practices fencing and kendo. She also insists that ‘Amoeba’ is a perfectly acceptable name for her cat.

Akash Jairaj

Haiyang 'Skyler' Chang

Siobhan O'Sullivan

Tamara Morrill

Jodi Morrison

Jodi is probably the most important person in this operation. Jodi graduated with a BSc in Biochemistry from the University of Waterloo, she worked at SickKids as part of a team that discovered the causative mutations of Shwachman-Diamond syndrome and she spent 5 years at a contract research organization developing drug-transporter gene expression arrays before returning to academic research. She currently not only keeps the Keller lab afloat but also works for the Department of Biomedical Sciences. Jodi spends much of her time training and assisting students, while contributing to several cancer research projects. It is said that she can be seen in two departments at the same time and that her touch can turn water into SDS-PAGE.

Alumni Lab Members

Elizabeth Silk

Elizabeth is the veteran of our lab – the first person to roam our then primordial bench space and the first person to run clonality assays at Guelph. Elizabeth recently completed her Honours Bachelor of Science at the University of Guelph, majoring in BioMedical Science. She one day hopes to attend the Ontario Veterinary College to fulfil her dream of becoming a veterinary surgeon. One of her favourite and oldest pastimes is horseback riding which is why she decided to focus on developing equine clonality testing that will help diagnose equine lymphoma. Elizabeth manages to juggle various volunteer commitments at vet clinics and in our lab in addition to her studies. She has recently been awarded an Andrea Leger Dunbar Summer Research Assistantship, which will allow her to spend the summer with us an focus on her equine clonality project. Elizabeth loves watching movies, reading books, playing different musical instruments, and spending time with friends and family.


Lucas DaSilva

Lucas is a graduate from the University of Guelph Biomedical Sciences program. He became interested in cancer research after completing a fourth year undergraduate research project on canine mast cell tumours. Lucas is currently enrolled in the Master of Biomedical Sciences program, and his project focuses on developing a genetic test to improve the diagnosis of canine B-cell lymphoma.