Title |
Human Colon Cancer–Derived Clostridioides difficile Strains Drive Colonic Tumorigenesis in Mice
|
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Published in |
Cancer Discovery, June 2022
|
DOI | 10.1158/2159-8290.cd-21-1273 |
Pubmed ID | |
Authors |
Julia L. Drewes, Jie Chen, Nicholas O. Markham, Reece J. Knippel, Jada C. Domingue, Ada J. Tam, June L. Chan, Lana Kim, Madison McMann, Courtney Stevens, Christine M. Dejea, Sarah Tomkovich, John Michel, James R. White, Fuad Mohammad, Victoria L. Campodónico, Cody N. Heiser, Xinqun Wu, Shaoguang Wu, Hua Ding, Patricia Simner, Karen Carroll, Martha J. Shrubsole, Robert A. Anders, Seth T. Walk, Christian Jobin, Fengyi Wan, Robert J. Coffey, Franck Housseau, Ken S. Lau, Cynthia L. Sears |
Abstract |
Defining the complex role of the microbiome in colorectal cancer (CRC) and the discovery of novel, pro-tumorigenic microbes are areas of active investigation. In the present study, culturing and reassociation experiments revealed that toxigenic strains of Clostridioides difficile drove the tumorigenic phenotype of a subset of CRC patient-derived mucosal slurries in germ-free ApcMin/+ mice. Tumorigenesis was dependent on the C. difficile toxin TcdB and was associated with induction of Wnt signaling, reactive oxygen species, and pro-tumorigenic mucosal immune responses marked by infiltration of activated myeloid cells and interleukin-17 (IL-17)-producing lymphoid and innate lymphoid cell subsets. These findings suggest that chronic colonization with toxigenic C. difficile is a potential driver of CRC in patients. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 36 | 49% |
United Kingdom | 3 | 4% |
Cyprus | 1 | 1% |
Dominican Republic | 1 | 1% |
Mexico | 1 | 1% |
India | 1 | 1% |
Germany | 1 | 1% |
Portugal | 1 | 1% |
Saudi Arabia | 1 | 1% |
Other | 2 | 3% |
Unknown | 26 | 35% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 35 | 47% |
Scientists | 24 | 32% |
Practitioners (doctors, other healthcare professionals) | 9 | 12% |
Science communicators (journalists, bloggers, editors) | 6 | 8% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 53 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 9 | 17% |
Researcher | 9 | 17% |
Student > Doctoral Student | 5 | 9% |
Professor > Associate Professor | 4 | 8% |
Student > Master | 4 | 8% |
Other | 10 | 19% |
Unknown | 12 | 23% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 9 | 17% |
Medicine and Dentistry | 8 | 15% |
Immunology and Microbiology | 6 | 11% |
Agricultural and Biological Sciences | 3 | 6% |
Unspecified | 3 | 6% |
Other | 6 | 11% |
Unknown | 18 | 34% |