Help
Subscribe


All of GastroHep is now free access! - Click here to register Read For FREE - Our full range of review articles
GastroHep.com - the global online resource for all aspects of gastroenterology, hepatology and endoscopy
GastroHep.com - the global online resource for all aspects of gastroenterology, hepatology and endoscopy Profile of Guido Tytgat Profile of Pete Peterson Profile of Peter Cotton Profile of Roy Pounder

Home

News  
Journals
Review Articles
Slide Atlas
Video Clips
Online Books
Advanced Digestive Endoscopy
Classical Cases
Conference Diary
PubMed
International GH Links
USA GH Links
National GH Links
National GI Societies
Other Useful Links




Emails on Gastroenterology and Hepatology
the National AIDS Treatment Advocacy Project
Visit the gastroenterology section of the EUMS

News

Chromosomal  gains are associated with liver-specific metastasis in colorectal cancer

Chromosome 20p11 gains are associated with liver-specific metastasis in patients with colorectal cancer, reports January's issue of Gut.

News image

Metastatic colorectal cancer cells have a selective preference for certain target organs that cannot be explained by circulatory patterns alone.

Dr Leonie Mekenkamp and colleagues from the Netherlands identified clinicopathological features and chromosomal aberrations of primary tumors associated with organ-specific colorectal cancer metastasis.

Clinicopathological features were investigated in patients with colorectal cancer who had exclusively hepatic versus exclusively extrahepatic metastases.

The team of doctors screened a total of 139 primary tumors of patients with hepatic and extrahepatic metastases for chromosomal aberrations by microarray-based comparative genomic hybridisation, and the findings were validated in an independent set of 80 primary tumors.

A publicly available database was used to correlate chromosomal aberrations with gene expression.

The researchers evaluated protein expression was evaluated by immunohistochemistry on tissue microarrays.

12 genes mapping at 20p11 were significantly overexpressed
Annals of Internal Medicine

Patients with hepatic metastases were significantly more often male, more often had abnormal lactate dehydrogenase activity, exhibited primary tumor localization in the colon, and had synchronous onset of metastases.

With the findings and outcome fo the study the team found that the primary tumors of patients with hepatic metastases were more commonly T3 tumors, and less commonly of mucinous histology.

Gain of 20p11 was more often observed in patients with hepatic metastases, which was confirmed in an independent dataset.

The researchers found that 12 genes mapping at 20p11 were significantly overexpressed as a consequence of 20p11 copy number gain.

C20orf3 showed the strongest correlation between RNA expression and DNA copy number.

This was reflected in significantly higher protein expression in patients with hepatic metastases than in those with extrahepatic metastases.

Dr Mekenkamp's team concludes "C20orf3 mapping at 20p11 is associated with hepatic-specific metastasis in patients with colorectal cancer."

"This gene is a candidate biomarker for liver metastases and may be of clinical value in early-stage colorectal cancer."

Gut 2013;62:94-101
13 December 2012

Go to top of page Email this page Email this page to a colleague

 28 July 2014

Advanced search
 28 July 2014 
Statins reduce Barrett's
 28 July 2014 
Score predicts risk for Barrett’s esophagus
 28 July 2014 
Gastric cancer prevention
 25 July 2014 
De-escalation of therapy in IBD
 25 July 2014 
Bionic pancreas in type 1 diabetes
 25 July 2014 
Primary care physician counselling and colonoscopy
 24 July 2014 
Diagnostic tool for obscure-overt GI bleeding
 24 July 2014 
Statin use and Barrett’s esophagus
 24 July 2014 
Atopy and functional GI disorders
 23 July 2014 
Sofosbuvir and ribavirin for Hep C
 23 July 2014 
Early corticosteroids after the diagnosis of ulcerative colitis
 23 July 2014 
C-section and IBD risk
 22 July 2014 
Thromboembolism in IBD
 22 July 2014 
Alcohol and colorectal adenoma risk
 22 July 2014 
Cognitive behavioral therapy in IBS
 21 July 2014 
Stents to prevent post-ERCP pancreatitis
 21 July 2014 
Psychometric validation of IBS symptom severity
 21 July 2014 
Mortality in IBD
 18 July 2014 
Treatment of enteropancreatic neuroendocrine tumors
 18 July 2014 
Ulcer complications and dyspeptic symptoms
 18 July 2014 
ERCP with overtube-assisted enteroscopy
 17 July 2014 
Treatment of H. pylori
 17 July 2014 
Ultrasound for diagnosis of gastric varices
 17 July 2014 
Small intestinal permeability in diarrhea predominant IBS
 16 July 2014 
Mortality after colectomy in IBD
 16 July 2014 
Esophageal cancer missed at endoscopy
 16 July 2014 
Screening for Hepatitis B
 15 July 2014 
Diagnosing diverticulitis
 15 July 2014 
Variation in management decisions for colorectal cancer
 15 July 2014 
Muscle cramps in cirrhosis
 14 July 2014 
Predicting the course of ulcerative colitis
 14 July 2014 
Choice in colorectal cancer screening tests
 14 July 2014 
Adhesions in abdominal surgery
 11 July 2014 
Temporal evolution of antidrug antibodies in IBD
 11 July 2014 
Atopy and functional gastrointestinal disorders
 11 July 2014 
Fecal microbiota transplant for C. diff
 10 July 2014 
Acid-suppressive medications and cancer risk in Barrett's
 10 July 2014 
Personalized medicine in the management of IBD
 10 July 2014 
Pregnancy outcome in anti-TNF treated women with IBD
 09 July 2014 
Quality of care provided to patients with varices
 09 July 2014 
Eosinophilic esophagitis and celiac disease
 09 July 2014 
Diagnosis and management of adult celiac disease
 08 July 2014 
Screening for Hep B
 08 July 2014 
NSAID-induced small intestinal injury
 08 July 2014 
Drug-induced liver injury
 07 July 2014 
Obesity and complications after lapaproscopic colorectal surgery
 07 July 2014 
Everolimus and advanced hepatocellular carcinoma
 07 July 2014 
Pediatric celiac disease risk factors
 04 July 2014 
Day-case vs inpatient laparoscopic fundoplication
 04 July 2014 
Alcohol assessment in liver transplant
 04 July 2014 
Clinical competence in colorectal cancer surgery
 03 July 2014 
Predicting acute liver failure in drug-induced liver injury
 03 July 2014 
Cognitive dysfunction impairs quality of life after liver transplant
 03 July 2014 
NOTES for colon resections
 02 July 2014 
Routine colonoscopy for uncomplicated diverticulitis
 02 July 2014 
Risk of stroke in ulcerative colitis
 02 July 2014 
Hemodialysis during liver transplant
 01 July 2014 
Outcomes for pregnant women with primary biliary cirrhosis
 01 July 2014 
Liver-prognosis assessment in Hep C
 01 July 2014 
Mortality from biliary diseases requiring ERCP

Blackwell Publishing


GastroHep.com is a Blackwell Publishing registered trademark
© 2014 Wiley-Blackwell and GastroHep.com and contributors
Privacy Statement
Disclaimer
About Us