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Zagato E, Pozzi C, Bertocchi A, Schioppa T, Saccheri F, Guglietta S, Fosso B, Melocchi L, Nizzoli G, Troisi J, Marzano M, Oresta B, Spadoni I, Atarashi K, Carloni S, Arioli S, Fornasa G, Asnicar F, Segata N, Guglielmetti S, Honda K, Pesole G, Vermi W, Penna G, Rescigno M. Endogenous murine microbiota member Faecalibaculum rodentium and its human homologue protect from intestinal tumour growth. Nat Microbiol 2020; 5:511-524. [PMID: 31988379 PMCID: PMC7048616 DOI: 10.1038/s41564-019-0649-5] [Citation(s) in RCA: 231] [Impact Index Per Article: 57.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 11/26/2019] [Indexed: 12/13/2022]
Abstract
The microbiota has been shown to promote intestinal tumourigenesis, but a possible anti-tumourigenic effect has also been postulated. Here, we demonstrate that changes in the microbiota and mucus composition are concomitant with tumourigenesis. We identified two anti-tumourigenic strains of the microbiota-Faecalibaculum rodentium and its human homologue, Holdemanella biformis-that are strongly under-represented during tumourigenesis. Reconstitution of ApcMin/+ or azoxymethane- and dextran sulfate sodium-treated mice with an isolate of F. rodentium (F. PB1) or its metabolic products reduced tumour growth. Both F. PB1 and H. biformis produced short-chain fatty acids that contributed to control protein acetylation and tumour cell proliferation by inhibiting calcineurin and NFATc3 activation in mouse and human settings. We have thus identified endogenous anti-tumourigenic bacterial strains with strong diagnostic, therapeutic and translational potential.
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Affiliation(s)
- Elena Zagato
- Department of Experimental Oncology, European Institute of Oncology IRCCS, Milan, Italy
- Institute of Oncology Research, Università della Svizzera italiana, Bellinzona, Switzerland
| | - Chiara Pozzi
- Humanitas Clinical and Research Center, IRCCS, Milan, Italy
| | | | - Tiziana Schioppa
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Fabiana Saccheri
- Department of Experimental Oncology, European Institute of Oncology IRCCS, Milan, Italy
| | - Silvia Guglietta
- Department of Experimental Oncology, European Institute of Oncology IRCCS, Milan, Italy
- Department of Microbiology and Immunology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
| | - Bruno Fosso
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Consiglio Nazionale delle Ricerche, Bari, Italy
| | - Laura Melocchi
- Section of Pathology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
- Pathology Department, Fondazione Poliambulanza Hospital, Brescia, Italy
| | - Giulia Nizzoli
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Jacopo Troisi
- Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana, University of Salerno, Baronissi, SA, Italy
- Theoreo Srl, Montecorvino Pugliano, Italy
- European Biomedical Research Institute of Salerno, Salerno, Italy
| | - Marinella Marzano
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Consiglio Nazionale delle Ricerche, Bari, Italy
| | - Bianca Oresta
- Humanitas Clinical and Research Center, IRCCS, Milan, Italy
| | - Ilaria Spadoni
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Koji Atarashi
- RIKEN Center for Integrative Medical Sciences, Tsurumi-ku, Yokohama, Japan
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
| | - Sara Carloni
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Stefania Arioli
- Division of Food Microbiology and Bioprocesses and Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milan, Italy
| | - Giulia Fornasa
- Humanitas Clinical and Research Center, IRCCS, Milan, Italy
| | | | - Nicola Segata
- CIBIO Department, University of Trento, Trento, Italy
| | - Simone Guglielmetti
- Division of Food Microbiology and Bioprocesses and Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milan, Italy
| | - Kenya Honda
- RIKEN Center for Integrative Medical Sciences, Tsurumi-ku, Yokohama, Japan
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
| | - Graziano Pesole
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Consiglio Nazionale delle Ricerche, Bari, Italy
- Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari, Bari, Italy
| | - William Vermi
- Section of Pathology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
- Department of Pathology and Immunology, Washington University, Saint Louis, MO, USA
| | - Giuseppe Penna
- Humanitas Clinical and Research Center, IRCCS, Milan, Italy
| | - Maria Rescigno
- Humanitas Clinical and Research Center, IRCCS, Milan, Italy.
- Department of Biomedical Sciences, Humanitas University, Milan, Italy.
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Pape E, Eldevik OP. P1-latency interroot comparison enhances the validity of scalp-recorded somatosensory-evoked potentials to diagnose nerve root dysfunction in sciatica. Spine (Phila Pa 1976) 1997; 22:798-807. [PMID: 9106322 DOI: 10.1097/00007632-199704010-00019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
STUDY DESIGN A prospective validity study was done of scalp-recorded somatosensory-evoked potentials as a diagnostic procedure to show lumbosacral radiculopathy in 100 consecutive patients with unilateral or bilateral sciatica. OBJECTIVE To determine the validity gained by the use of P1-latency interroot comparison to show P1-latency prolongation. SUMMARY OF THE BACKGROUND DATA The validity of scalp-recorded somatosensory-evoked potentials in diagnosing lumbosacral radiculopathy has been debated and is uncertain. METHOD Sensory nerves representing nerve roots L4, L5, and S1 were stimulated bilaterally. Height-corrected P1-latency, two new P1-interroot comparison-based criteria, and absence of P1 were studied. The gold standard was defined as clinically-involved nerve roots with radiologic nerve root compression. The false-positive nerve root compression rate was determined, and the gold standard was corrected accordingly. Clinically relevant cut-off values were defined by multilevel likelihood ratio analysis. RESULTS The positive and negative likelihood ratios of P1-latency prolongation were 6.79 and 0.53, respectively, for the gold standard, and 10.57 and 0.21, respectively, for the corrected gold standard. The validity was not reduced when scalp-recorded, somatosensory-evoked potentials were blinded to the radiologic results. Absence of P1 was associated to the gold standard and the corrected gold standard. Compared with the combined use of P1-latency interside difference and height-corrected latency, the combination of P1-interroot comparison and height-corrected P1-latency increased the sensitivity by 20% for the gold standard and 32% for the corrected gold standard, and when absent P1 was added, the overall sensitivity was 53% for the gold standard and 81% for the corrected gold standard. The corresponding specificity was 92%, and in asymptomatic nerve roots it was 98%. CONCLUSION The P1-interroot comparison permits the use of scalp-recorded somatosensory-evoked potentials as a contributory "rule in" procedure in patients with sciatica.
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Affiliation(s)
- E Pape
- Department of Neurology, Ullevål City Hospital, University of Oslo, Norway
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