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Combined deficiency...
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Jansson, Agneta,1973-Linköpings universitet,Onkologi,Hälsouniversitetet
(author)
Combined deficiency of hMLH1, hMSH2, hMSH3 and hMSH6 is an independent prognostic factor in colorectal cancer
- Article/chapterEnglish2003
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LIBRIS-ID:oai:DiVA.org:liu-25113
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-25113URI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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We examined biological and clinicopathological significance of individual and combined hMLH1, hMSH2, hMSH3 and hMSH6 expression with immunohistochemistry in 301 unselected colorectal cancers. Weak hMLH1 expression was correlated to microsatellite instability (P=0.04), negative p53 expression (P=0.005) and mucinous carcinomas (P=0.02). Weak hMSH2 expression was related to negative ras (P<0.001) and p53 expression (P=0.005), and better survival (P=0.03). hMSH2, hMSH3 and hMSH6, as well as hMLH1, hMSH2, hMSH3 and hMSH6, were combined into a 'functional' and a 'less-functional' group, respectively. Both 'less-functional' groups were/tended to be associated with microsatellite instability, negative ras and p53 expression, and better survival. In summary, hMLH1 and hMSH2 were more important when investigated individually, and the combined groups were more related to the mutator pathway, suggesting that combined deficiencies of the proteins are more efficiently involved in the mutator pathway. Our result from weak versus strong staining may suggest that the intensity of staining should be considered in future studies on mismatch repair proteins.
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Arbman, GunnarDepartment of Surgery, Vrinnevi Hospital Hospital, Norrköping, Sweden(Swepub:liu)gunar63
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Zhang, Hong,1957-Linköpings universitet,Dermatologi,Hälsouniversitetet(Swepub:liu)honzh78
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Sun, Xiao-Feng,1959-Linköpings universitet,Onkologi,Hälsouniversitetet(Swepub:liu)xiasu45
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Linköpings universitetOnkologi
(creator_code:org_t)
Related titles
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In:International Journal of Oncology22:1, s. 41-491019-64391791-2423
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