Document Detail


ACB-PCR quantification of K-RAS codon 12 GAT and GTT mutant fraction in colon tumor and non-tumor tissue.
MedLine Citation:
PMID:  20408782     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
K-RAS mutation is being developed as a cancer biomarker and tumor K-RAS is being used to predict therapeutic response. Yet, levels of K-RAS mutation in normal and pathological tissue samples have not been determined rigorously, nor inter-individual variation in these levels characterized. Therefore, K-RAS codon 12 GAT and GTT mutant fractions were measured in colonic mucosa of individuals without colon cancer, tumor-distal mucosa, tumor-proximal mucosa, normal tumor-adjacent tissues, colonic adenomas, and carcinomas. The results indicate K-RAS codon 12 GAT mutation is present at measurable levels in normal appearing mucosa. All tumors carried K-RAS mutation, in most cases as a mutant subpopulation.
Authors:
Barbara L Parsons; Kathryn E Marchant-Miros; Robert R Delongchamp; Tracie L Verkler; Tucker A Patterson; Page B McKinzie; Lawrence T Kim
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Cancer investigation     Volume:  120     ISSN:  1532-4192     ISO Abbreviation:  Cancer Invest.     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-04-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8307154     Medline TA:  Cancer Invest     Country:  England    
Other Details:
Languages:  eng     Pagination:  364-75     Citation Subset:  IM    
Affiliation:
US FDA, National Center for Toxicological Research, Jefferson, Arkansas, USA. barbara.parsons@fda.hhs.gov <barbara.parsons@fda.hhs.gov>
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