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Grant: DRA : Canada Graduate Research Scholarship - Doctoral Program (CGRS D)

Ottawa Hospital Research Institute

$120,000.00

Strategies for inhibiting protein kinase R and antiviral effectors to increase the spread and persistence of self-amplifying RNA-based cancer vaccines using small molecules, short-hairpin RNA and viral microRNA.

FY 2025-26

Summary
The COVID-19 pandemic demonstrated the life-saving impact of RNA vaccines and showcased the strength of Canadian science and innovation. As the world now turns toward using RNA technologies to treat cancer, Canada has a unique opportunity to lead the next wave of innovation and ensure that these advances remain accessible, affordable, and developed at home for Canadians. My research focuses on self-amplifying RNA (saRNA), a next-generation RNA technology that can produce stronger and longer-lasting therapeutic effects than current mRNA vaccines, while requiring far smaller doses. This makes saRNA a highly promising platform for cancer therapies within Canada's publicly funded healthcare system, where cost-effectiveness and equitable access are essential. A key challenge is that cancer cells detect saRNA as "foreign" and activate a defence protein called PKR, which shuts down the treatment before it can work. My project aims to temporarily block this and other antiviral barriers so saRNA therapies can better target and eliminate cancer cells. I will test three possible solutions to combine with saRNA: 1) Small molecule chemotherapy drug (C16) that inhibits PKR and slows tumour growth 2) Built-in microRNA genetic "switch" that reduces PKR only where the therapy acts. 3) Built-in viral microRNA that are known to down regulate other antiviral pathways to increase saRNA efficacy. By improving how saRNA spreads inside tumours and stimulates anti-cancer immunity, this research could enable more effective and accessible RNA-based cancer treatments for Canadians. These advances can strengthen Canada's position as a global leader in RNA therapeutics. As a Canadian trainee, this project will equip me with cutting-edge RNA, cancer biology, and translational research expertise that I will reinvest into Canada's scientific and biomedical innovation ecosystem.
Program
DRA : Canada Graduate Research Scholarship - Doctoral Program (CGRS D)
Location
Ontario, Canada
Recipient Type
Other
Type
Grant
Source
CIHR Funding Decisions Database

As published

Id
559288
Name
Thomas Dylan A
Region
Ontario
Country
Canada
Orgtype
Institution Paid; Research Institution
Instname2
Cancer Research
Theme2
Biomedical
Prcname2
DT1 (Biomedical and/or Clinical Research) CGRS Doctoral
Projecttitle
Strategies for inhibiting protein kinase R and antiviral effectors to increase the spread and persistence of self-amplifying RNA-based cancer vaccines using small molecules, short-hairpin RNA and viral microRNA.
Programtype2
Studentship Programs
Orgnameinp2
Ottawa Hospital Research Institute
Cihramount2
$120,000
Cihrequipment2
$0
Programname2
DRA : Canada Graduate Research Scholarship - Doctoral Program (CGRS D)
Keyworddelim
Cancer Vaccines; Flow Cytometry; Immunotherapy; In-Vivo Mouse Models; Protein Kinase R; Rna Sequencing; Self-Amplifying Rna; Short Hairpin Rna; Tumour Microenvironment; Viral Microrna
Abstract
The COVID-19 pandemic demonstrated the life-saving impact of RNA vaccines and showcased the strength of Canadian science and innovation. As the world now turns toward using RNA technologies to treat cancer, Canada has a unique opportunity to lead the next wave of innovation and ensure that these advances remain accessible, affordable, and developed at home for Canadians. My research focuses on self-amplifying RNA (saRNA), a next-generation RNA technology that can produce stronger and longer-lasting therapeutic effects than current mRNA vaccines, while requiring far smaller doses. This makes saRNA a highly promising platform for cancer therapies within Canada's publicly funded healthcare system, where cost-effectiveness and equitable access are essential. A key challenge is that cancer cells detect saRNA as "foreign" and activate a defence protein called PKR, which shuts down the treatment before it can work. My project aims to temporarily block this and other antiviral barriers so saRNA therapies can better target and eliminate cancer cells. I will test three possible solutions to combine with saRNA: 1) Small molecule chemotherapy drug (C16) that inhibits PKR and slows tumour growth 2) Built-in microRNA genetic "switch" that reduces PKR only where the therapy acts. 3) Built-in viral microRNA that are known to down regulate other antiviral pathways to increase saRNA efficacy. By improving how saRNA spreads inside tumours and stimulates anti-cancer immunity, this research could enable more effective and accessible RNA-based cancer treatments for Canadians. These advances can strengthen Canada's position as a global leader in RNA therapeutics. As a Canadian trainee, this project will equip me with cutting-edge RNA, cancer biology, and translational research expertise that I will reinvest into Canada's scientific and biomedical innovation ecosystem.
Competitiondate
202511
Approvedterm2
3 yrs 0 mth
Pinamesdelim
Thomas, Dylan A
Approvedterm
3 ans 0 mois
Cihrcontribution2
~ $120,000~ $0~
Ottawa Hospital Research Institute - $120,000 Grant (… | Canada Spends