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Rugge M, Genta RM, Graham DY, Di Mario F, Vaz Coelho LG, Kim N, Malfertheiner P, Sugano K, Tsukanov V, Correa P. Chronicles of a cancer foretold: 35 years of gastric cancer risk assessment. Gut 2016; 65:721-5. [PMID: 26927528 PMCID: PMC4853570 DOI: 10.1136/gutjnl-2015-310846] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 12/15/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Massimo Rugge
- Department of Medicine DIMED Pathology and Cytopathology Unit, University of Padova, Padova, Italy,Tumor Registry of the Veneto Region, Padova, Italy
| | - Robert M Genta
- Miraca Life Sciences Research Institute, Irving, Texas, USA,University of Texas Southwestern Medical School, Dallas, Texas, USA
| | - David Y Graham
- Department of Medicine, Michael E. De Bakey Veterans Affairs Medical Center, and Baylor College of Medicine, Houston, Texas, USA
| | - Francesco Di Mario
- Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
| | - Luiz Gonzaga Vaz Coelho
- Institute Alfa of Gastroenterology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, Gyeonggi-do, South Korea
| | - Peter Malfertheiner
- Department of Gastroenterology, Hepatology & Infectious Diseases, Otto-von-Guericke University, University Medical Center of Magdeburg, Magdeburg, Germany
| | - Kentaro Sugano
- Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Vladislav Tsukanov
- State Scientific Medical Research Institute for Northern Problems of Siberian Division of Russian Academy of Medical Sciences, Krasnoyarsk, Russia
| | - Pelayo Correa
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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Fassan M, Saraggi D, Balsamo L, Cascione L, Castoro C, Coati I, De Bernard M, Farinati F, Guzzardo V, Valeri N, Zambon CF, Rugge M. Let-7c down-regulation in Helicobacter pylori-related gastric carcinogenesis. Oncotarget 2016; 7:4915-24. [PMID: 26701848 PMCID: PMC4826253 DOI: 10.18632/oncotarget.6642] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 11/27/2015] [Indexed: 12/11/2022] Open
Abstract
Aberrant let-7c microRNA (miRNA) expression has been observed in Helicobacter pylori-related gastric cancer (GC) but fragmentary information is available on the let-7c dysregulation occurring with each phenotypic change involved in gastric carcinogenesis. Let-7c expression was assessed (qRT-PCR) in a series of 175 gastric biopsy samples representative of the whole spectrum of phenotypic changes involved in H. pylori-related gastric oncogenesis including: i) normal gastric mucosa, as obtained from dyspeptic controls (40 biopsy samples); ii) non-atrophic gastritis (40 samples); iii) atrophic-metaplastic gastritis (35 samples); iv) intra-epithelial neoplasia (30 samples); v) GC (30 samples). Let-7c expression was also tested in 20 biopsy samples obtained from 10 patients before and after H. pylori eradication therapy (median follow-up: 10 weeks; range: 7-14). The results obtained were further validated by in situ hybridization on multiple tissue specimens obtained from 5 surgically treated H. pylori-related GCs. The study also included 40 oxyntic biopsy samples obtained from serologically/histologically confirmed autoimmune gastritis (AIG: 20 corpus-restricted, non-atrophic; 20 corpus-restricted, atrophic-metaplastic). Let-7c expression dropped from non-atrophic gastritis to atrophic-metaplastic gastritis, intra-epithelial neoplasia, and invasive GC (p<0.001). It rose again significantly following H. pylori eradication (p=0.009). As in the H. pylori model, AIG also featured a significant let-7c down-regulation (p<0.001). The earliest phases of the two pathways to gastric oncogenesis (H. pylori-environmental and autoimmune host-related) are characterized by similar let-7c dysregulations. In H. pylori infection, let-7c down-regulation regresses after the bacterium's eradication, while it progresses significantly with the increasing severity of the histological lesions.
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Affiliation(s)
- Matteo Fassan
- Department of Medicine (DIMED), Surgical Pathology & Cytopathology Unit, University of Padua, Padua, Italy
| | - Deborah Saraggi
- Department of Medicine (DIMED), Surgical Pathology & Cytopathology Unit, University of Padua, Padua, Italy
| | - Laura Balsamo
- Department of Medicine (DIMED), Surgical Pathology & Cytopathology Unit, University of Padua, Padua, Italy
| | - Luciano Cascione
- Institute of Oncology Research and Swiss Institute of Bioinformatics, Lymphoma & Genomics Group, Bellinzona, Switzerland
| | - Carlo Castoro
- Istituto Oncologico Veneto, IOV-IRCCS, Surgery Unit, Padua, Italy
| | - Irene Coati
- Department of Medicine (DIMED), Surgical Pathology & Cytopathology Unit, University of Padua, Padua, Italy
| | | | - Fabio Farinati
- Department of Surgical Oncology and Gastroenterology (DiSCOG), Gastroenterology Unit, University of Padua, Padua, Italy
| | - Vincenza Guzzardo
- Department of Medicine (DIMED), Surgical Pathology & Cytopathology Unit, University of Padua, Padua, Italy
| | - Nicola Valeri
- Molecular Pathology Division, Institute of Cancer Research, London and Sutton, UK
| | - Carlo Federico Zambon
- Department of Medicine (DIMED), Clinical Pathology Unit, University of Padua, Padua, Italy
| | - Massimo Rugge
- Department of Medicine (DIMED), Surgical Pathology & Cytopathology Unit, University of Padua, Padua, Italy
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