ORCID Profile
0000-0003-1955-9149
Current Organisation
CHUM
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Publisher: American Association for Cancer Research (AACR)
Date: 04-04-2023
DOI: 10.1158/2159-8290.22541483.V1
Abstract: Supplementary Figure from Cancer Induces a Stress Ileopathy Depending on β-Adrenergic Receptors and Promoting Dysbiosis that Contributes to Carcinogenesis
Publisher: American Association for Cancer Research (AACR)
Date: 04-04-2023
DOI: 10.1158/2159-8290.C.6549650
Abstract: Abstract Gut dysbiosis has been associated with intestinal and extraintestinal malignancies, but whether and how carcinogenesis drives compositional shifts of the microbiome to its own benefit remains an open conundrum. Here, we show that malignant processes can cause ileal mucosa atrophy, with villous microvascular constriction associated with dominance of sympathetic over cholinergic signaling. The rapid onset of tumorigenesis induced a burst of REG3γ release by ileal cells, and transient epithelial barrier permeability that culminated in overt and long-lasting dysbiosis dominated by Gram-positive i Clostridium /i species. Pharmacologic blockade of β-adrenergic receptors or genetic deficiency in i Adrb2 /i gene, vancomycin, or cohousing of tumor bearers with tumor-free littermates prevented cancer-induced ileopathy, eventually slowing tumor growth kinetics. Patients with cancer harbor distinct hallmarks of this stress ileopathy dominated by i Clostridium /i species. Hence, stress ileopathy is a corollary disease of extraintestinal malignancies requiring specific therapies. Significance: Whether gut dysbiosis promotes tumorigenesis and how it controls tumor progression remain open questions. We show that 50% of transplantable extraintestinal malignancies triggered a β-adrenergic receptor–dependent ileal mucosa atrophy, associated with increased gut permeability, sustained i Clostridium /i spp.–related dysbiosis, and cancer growth. Vancomycin or propranolol prevented cancer-associated stress ileopathy. i This article is highlighted in the In This Issue feature, p. 873 /i /
Publisher: American Association for Cancer Research (AACR)
Date: 04-04-2023
DOI: 10.1158/2159-8290.22541477.V1
Abstract: Supplementary Figure from Cancer Induces a Stress Ileopathy Depending on β-Adrenergic Receptors and Promoting Dysbiosis that Contributes to Carcinogenesis
Publisher: American Association for Cancer Research (AACR)
Date: 04-04-2023
DOI: 10.1158/2159-8290.22541483
Abstract: Supplementary Figure from Cancer Induces a Stress Ileopathy Depending on β-Adrenergic Receptors and Promoting Dysbiosis that Contributes to Carcinogenesis
Publisher: American Association for Cancer Research (AACR)
Date: 04-04-2023
DOI: 10.1158/2159-8290.22541477
Abstract: Supplementary Figure from Cancer Induces a Stress Ileopathy Depending on β-Adrenergic Receptors and Promoting Dysbiosis that Contributes to Carcinogenesis
Publisher: American Association for Cancer Research (AACR)
Date: 20-12-2022
DOI: 10.1158/2159-8290.CD-21-0999
Abstract: Whether gut dysbiosis promotes tumorigenesis and how it controls tumor progression remain open questions. We show that 50% of transplantable extraintestinal malignancies triggered a β-adrenergic receptor–dependent ileal mucosa atrophy, associated with increased gut permeability, sustained Clostridium spp.–related dysbiosis, and cancer growth. Vancomycin or propranolol prevented cancer-associated stress ileopathy. This article is highlighted in the In This Issue feature, p. 873
Publisher: American Association for Cancer Research (AACR)
Date: 04-04-2023
DOI: 10.1158/2159-8290.C.6549650.V1
Abstract: Abstract Gut dysbiosis has been associated with intestinal and extraintestinal malignancies, but whether and how carcinogenesis drives compositional shifts of the microbiome to its own benefit remains an open conundrum. Here, we show that malignant processes can cause ileal mucosa atrophy, with villous microvascular constriction associated with dominance of sympathetic over cholinergic signaling. The rapid onset of tumorigenesis induced a burst of REG3γ release by ileal cells, and transient epithelial barrier permeability that culminated in overt and long-lasting dysbiosis dominated by Gram-positive i Clostridium /i species. Pharmacologic blockade of β-adrenergic receptors or genetic deficiency in i Adrb2 /i gene, vancomycin, or cohousing of tumor bearers with tumor-free littermates prevented cancer-induced ileopathy, eventually slowing tumor growth kinetics. Patients with cancer harbor distinct hallmarks of this stress ileopathy dominated by i Clostridium /i species. Hence, stress ileopathy is a corollary disease of extraintestinal malignancies requiring specific therapies. Significance: Whether gut dysbiosis promotes tumorigenesis and how it controls tumor progression remain open questions. We show that 50% of transplantable extraintestinal malignancies triggered a β-adrenergic receptor–dependent ileal mucosa atrophy, associated with increased gut permeability, sustained i Clostridium /i spp.–related dysbiosis, and cancer growth. Vancomycin or propranolol prevented cancer-associated stress ileopathy. i This article is highlighted in the In This Issue feature, p. 873 /i /
No related grants have been discovered for Bertrand Routy.