Abstract:
:Human epidermal growth factor receptor 2 (HER2) is involved in the malignant progression of several human cancers, including esophageal adenocarcinoma (EAC). The purpose of this study was to evaluate HER2 overexpression and to explore the feasibility of confocal laser endomicroscopy for in vivo molecular imaging of HER2 status in an animal model of Barrett's-related EAC. Rats underwent esophagojejunostomy with gastric preservation. At 30 weeks post-surgery, the esophagus of 46 rats was studied; endoscopic and histological findings were correlated with HER2 immunofluorescence on excised biopsies and gross specimens. At this age, 23/46 rats developed Barrett's esophagus (BE), and 6/46 had cancer (four EAC and two squamous cell carcinomas). A significant overexpression of HER2 was observed in esophageal adenocarcinoma compared with normal squamous esophagus (9.4-fold) and BE (6.0-fold). AKT and its phosphorylated form were also overexpressed in cancer areas. Molecular imaging was performed at 80 weeks post-surgery in four rats after tail injection of fluorescent-labeled anti-HER2 antibody. At this age, 3/4 rats developed advance adenocarcinoma and showed in vivo overexpression of HER2 by molecular confocal laser endomicroscopy with heterogeneous distribution within cancer; no HER2 signal was observed in normal or Barrett's tissues. Therefore, HER2 overexpression is a typical feature of the surgical induced model of EAC that can be easily quantified in vivo using an innovative mini-invasive approach including confocal endomicroscopy; this approach may avoid limits of histological evaluation of HER2 status on 'blinded' biopsies.
journal_name
Dis Esophagusjournal_title
Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagusauthors
Realdon S,Dassie E,Fassan M,Dall'Olmo L,Hatem G,Buda A,Arcidiacono D,Diamantis G,Zhang H,Greene MI,Sturniolo GC,Rugge M,Alberti A,Battaglia Gdoi
10.1111/dote.12210subject
Has Abstractpub_date
2015-05-01 00:00:00pages
394-403issue
4eissn
1120-8694issn
1442-2050journal_volume
28pub_type
杂志文章abstract::The recent anatomical studies of the esophagus showed that submucosal longitudinal lymphatic vessels connect to the superior mediastinal and the paracardial lymphatics and lymphatic routes to periesophageal nodes originate from the muscle layer. Using clinical data for lymph node metastasis, we verify these anatomical...
journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章,随机对照试验
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章,评审
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abstract::The progression of certain primary esophageal motor disorders to achalasia has been documented; however, the true incidence of this decay is still elusive. This study aims to evaluate: (i) the incidence of the progression of diffuse esophageal spasm to achalasia, and (ii) predictive factors to this progression. Thirty...
journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章,评审
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章,评审
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abstract::Non-Hodgkin lymphoma involving the esophagus is very rare. Only a few cases have been reported in the English literature to date, and it accounts for less than 1% of all cases of gastrointestinal lymphoma. As this malignancy manifests as a submucosal tumor, pathological diagnosis by using a simple endoscopic biopsy al...
journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章,评审
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更新日期:2016-10-01 00:00:00
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journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
doi:10.1046/j.1442-2050.2000.00118.x
更新日期:2000-01-01 00:00:00
abstract::Interferon (IFN)-β has efficient antitumor effect both in vitro and in vivo, but its clinical implication is limited by short half-life and systemic toxicities. Gene therapy could be the choice to avoid the defects. Adenovirus vector containing human IFN-β gene was transfected into esophageal squamous cell carcinoma K...
journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
doi:10.1111/dote.12081
更新日期:2014-02-01 00:00:00
abstract::A wide variety of pieces of evidence has suggested that obesity is associated with a significant increase in the risk for gastroesophageal reflux disease (GERD) symptoms and its complications. The aim of this study was to evaluate the effect of weight loss on reflux symptoms in overweight/obese patients with proven GE...
journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
doi:10.1111/dote.12319
更新日期:2016-02-01 00:00:00
abstract::Esophageal perforation is uncommon and traditionally has a high rate of morbidity and mortality. Our aim was to perform a 13-year retrospective review of the cases managed in our district general hospital. Thirty-four cases of esophageal perforation diagnosed between 1995 and 2008 were retrospectively analyzed. There ...
journal_title:Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus
pub_type: 杂志文章
doi:10.1111/j.1442-2050.2009.00959.x
更新日期:2009-01-01 00:00:00