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An international research team, funded in 2019 by Cancer Grand Challenges, that studies how the bacteria and other microbes in the gut are linked to bowel cancer, whether they change how well treatment works, and whether they could be targeted with vaccines or other treatments.
OPTIMISTICC tackles the microbiota challenge, set in 2017: to improve treatment responses by manipulating the composition and status of the microbiota. It is co-led by Wendy Garrett (Harvard T.H. Chan School of Public Health) and Matthew Meyerson (Dana-Farber Cancer Institute), was funded in 2019, and has members in Canada, the Netherlands, Spain, the US and the UK. Building on earlier findings by its members that enterotoxigenic Bacteroides fragilis, pks+ Escherichia coli and Fusobacterium nucleatum are associated with colorectal cancer and precancerous lesions, the team is sequencing stool and colorectal tissue from over 17,000 people and running MICROCOSM, a prospective study aiming to recruit 2,500 patients with samples taken before and during treatment.
The team reports identifying a mutational signature caused by colibactin, the genotoxin of pks+ E. coli, found in 12 per cent of colorectal cancer genomes, with colibactin exposure able to cause APC mutations, and patients with the signature diagnosed at a younger age. It is developing antimicrobial approaches in preclinical work, including prophylactic vaccines and predatory bacteria.
Shares Cancer Grand Challenges, No one can predict who responds to immunotherapy and the tag research-funding.
Shares Cancer Grand Challenges and the tag research-funding.
Shares Cancer Grand Challenges and the tag research-funding.
Shares No one can predict who responds to immunotherapy and the tag research-funding.
Shares Cancer Grand Challenges and the tag research-funding.
Shares Colorectal cancer and the tag research-funding.
Shares Colorectal cancer and the tag research-funding.
Shares Microbiome modulation to unlock immunotherapy, No one can predict who responds to immunotherapy.
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