Shifts of Faecal Microbiota during Sporadic Colorectal Carcinogenesis

Giorgia Mori, Simone Rampelli, Beatrice Silvia Orena, Claudia Rengucci, Giulia De Maio, Giulia Barbieri, Alessandro Passardi, Andrea Casadei Gardini, Giovanni Luca Frassineti, Stefano Gaiarsa, Alessandra M. Albertini, Guglielmina Nadia Ranzani, Daniele Calistri, Maria Rosalia Pasca

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Gut microbiota has been implicated in the etiopathogenesis of colorectal cancer. The development of colorectal cancer is a multistep process by which healthy epithelium slowly develops into preneoplastic lesions, which in turn progress into malignant carcinomas over time. In particular, sporadic colorectal cancers can arise from adenomas (about 85% of cases) or serrated polyps through the "adenoma-carcinoma" or the "serrated polyp-carcinoma" sequences, respectively. In this study, we performed 16 S rRNA gene sequencing of bacterial DNA extracted from faecal samples to compare the microbiota of healthy subjects and patients with different preneoplastic and neoplastic lesions. We identified putative microbial biomarkers associated with stage-specific progression of colorectal cancer. In particular, bacteria belonging to the Firmicutes and Actinobacteria phyla, as well as members of the Lachnospiraceae family, proved to be specific of the faecal microbiota of patients with preneoplastic lesions, including adenomas and hyperplastic polyps. On the other hand, two families of the Proteobacteria phylum, Alcaligeneaceae and Enterobacteriaceae, with Sutterella and Escherichia/Shigella being the most representative genera, appeared to be associated with malignancy. These findings, once confirmed on larger cohorts of patients, can represent an important step towards the development of more effective diagnostic strategies.

Original languageEnglish
Article number10329
JournalScientific Reports
Volume8
Issue number1
DOIs
Publication statusPublished - Dec 1 2018

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Microbiota
Colorectal Neoplasms
Carcinogenesis
Polyps
Adenoma
Carcinoma
Escherichia
Proteobacteria
Bacterial DNA
Shigella
Actinobacteria
Enterobacteriaceae
rRNA Genes
Healthy Volunteers
Epithelium
Biomarkers
Bacteria
Neoplasms

ASJC Scopus subject areas

  • General

Cite this

Mori, G., Rampelli, S., Orena, B. S., Rengucci, C., De Maio, G., Barbieri, G., ... Pasca, M. R. (2018). Shifts of Faecal Microbiota during Sporadic Colorectal Carcinogenesis. Scientific Reports, 8(1), [10329]. https://doi.org/10.1038/s41598-018-28671-9

Shifts of Faecal Microbiota during Sporadic Colorectal Carcinogenesis. / Mori, Giorgia; Rampelli, Simone; Orena, Beatrice Silvia; Rengucci, Claudia; De Maio, Giulia; Barbieri, Giulia; Passardi, Alessandro; Casadei Gardini, Andrea; Frassineti, Giovanni Luca; Gaiarsa, Stefano; Albertini, Alessandra M.; Ranzani, Guglielmina Nadia; Calistri, Daniele; Pasca, Maria Rosalia.

In: Scientific Reports, Vol. 8, No. 1, 10329, 01.12.2018.

Research output: Contribution to journalArticle

Mori, Giorgia ; Rampelli, Simone ; Orena, Beatrice Silvia ; Rengucci, Claudia ; De Maio, Giulia ; Barbieri, Giulia ; Passardi, Alessandro ; Casadei Gardini, Andrea ; Frassineti, Giovanni Luca ; Gaiarsa, Stefano ; Albertini, Alessandra M. ; Ranzani, Guglielmina Nadia ; Calistri, Daniele ; Pasca, Maria Rosalia. / Shifts of Faecal Microbiota during Sporadic Colorectal Carcinogenesis. In: Scientific Reports. 2018 ; Vol. 8, No. 1.
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