OICR is proud to welcome Dr. Tricia Cottrell to Ontario’s
cancer research community.
Dr. Tricia Cottrell, who is an immunologist and
pathologist by training, is focused on the interplay between cancer cells and
the immune system. She maps these complex interactions, as patients undergo
treatment, to develop new biomarkers that can better predict the course of a
patient’s disease.
Joining OICR from Johns Hopkins University in
Baltimore, MD, Cottrell brings unique expertise in studying the tumour immune
microenvironment, specifically in lung cancer. Here, she discusses her
transition and her new appointments at the Canadian Cancer Trials Group, Queen’s
University and OICR.
How
did you become interested in the field of immuno-oncology?
The idea of harnessing the immune system to
control and eliminate cancer fascinates me.
My PhD research on the autoimmune disease
scleroderma left me eager to find ways to study immune responses in human
tissue. While pursuing this research through my anatomic pathology residency, I
stumbled upon the revolution happening in cancer immunotherapy. There are a lot
of interesting intersections between cancer immunology and autoimmunity, and I
knew I wanted to dig in.
What
problems and questions are you working to solve?
Generally, I look at different features of the
immune response to cancer and find patterns in these features that are
associated with a response to therapy. I’m addressing the question: can we
predict which patients are most likely to respond to treatment?
When we have tools to answer that question, we
can help patients decide which treatment is best suited for their unique
disease.
How
are you addressing those big questions?
As a pathologist, I start with simple
observations made through a microscope. Then, I use techniques like multiplex
immunofluorescence to understand the cells and molecules driving the patterns I
see in the tissue. Finally, I integrate these observations with other –omics analyses
of the same sample, like DNA or RNA profiling, in pursuit of better biomarkers.
The ultimate goal is to have biomarkers that can accurately predict which
therapy or combination of therapies is most likely to empower a patient’s
immune system to eliminate their cancer.
Through these studies, we also identify
patterns and molecular characteristics in the tumours of patients who respond
poorly to treatment. We can use this knowledge to find mechanisms of
resistance, or the ways that the cancer can evade treatment. Then we can
develop new therapies to address these mechanisms.
You’ve
been recognized and awarded for your research on several occasions. What is an
achievement that most people don’t know about?
I never anticipated that my research as a
pathologist would lead me to analyzing big data. I’m quite proud that I learned
some computer programming and I continue to integrate new technologies and
cutting-edge analytic approaches into my research.
A specific achievement I am proud of is developing
a method to measure the response of lung cancer patients to checkpoint blockade
therapy using microscopic features of their tumours. This method is now being
validated in a large clinical trial and has been shown to work in other cancer
types as well. We are currently investigating its potential as a pan-tumour
biomarker that would allow unprecedented standardization of clinical trials
across different cancer types.
Why
did you choose to relocate to Kingston?
I was looking for an opportunity to expand my
research focusing on patients enrolled in clinical trials. Kingston offered that
opportunity through an appointment with the Canadian Cancer Trials Group (CCTG),
which is based at Queen’s University where I am also an Assistant Professor.
At CCTG, I get to participate in the design of
clinical trials, including arranging tissue collection and planning the
correlative science (the study of the relationship between biology and clinical
outcomes) that goes along with those trials. My goal is to make sure my research
will be translatable to the clinic, or in other words – to find solutions that can
be applied in practice.
I’m also personally very excited about the opportunity
for my family to be here in Canada.
What
are you looking forward to over the next year?
I look forward to maintaining my existing
collaborations while broadening my research scope. I’ll be working to establish
a laboratory-based platform that produces high-quality, large-scale multiplex
immunofluorescence data from tumour tissue specimens. I also look forward to
laying the groundwork for a data integration and analysis pipeline for
tissue-based immunology studies.
Most of all, I’m excited to begin growing my
own lab group. I hope to foster a collaborative team environment with
individuals from diverse backgrounds in pathology, biology, immunology,
bioinformatics and more.
Read more about Dr. Tricia Cottrell here.