Title : Mutant K-ras promotes carcinogen-induced murine colorectal tumourigenesis, but does not alter tumour chromosome stability.

Pub. Date : 2011 Feb

PMID : 21171084






8 Functional Relationships(s)
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1 In the adenomas from DMH-treated K-ras{Val12} mice, K-ras{Val12} transgene recombination and expression were confirmed, with immunohistochemical evidence of strong Erk/MapK and mild PI3K/Akt pathway activation compared with adenomas from DMH-treated wild-type mice. 1,2-Dimethylhydrazine Kirsten rat sarcoma viral oncogene homolog Mus musculus
2 In the adenomas from DMH-treated K-ras{Val12} mice, K-ras{Val12} transgene recombination and expression were confirmed, with immunohistochemical evidence of strong Erk/MapK and mild PI3K/Akt pathway activation compared with adenomas from DMH-treated wild-type mice. 1,2-Dimethylhydrazine Kirsten rat sarcoma viral oncogene homolog Mus musculus
3 Microarray hybridization and clustering analysis demonstrated different expression profiles in adenomas from DMH-treated wild-type and DMH-treated K-ras{Val12} mice, indicating involvement of different molecular mechanisms including Erk/MapK and PI3K/Akt signalling in K-ras{Val12}-expressing adenomas. 1,2-Dimethylhydrazine Kirsten rat sarcoma viral oncogene homolog Mus musculus
4 Microarray hybridization and clustering analysis demonstrated different expression profiles in adenomas from DMH-treated wild-type and DMH-treated K-ras{Val12} mice, indicating involvement of different molecular mechanisms including Erk/MapK and PI3K/Akt signalling in K-ras{Val12}-expressing adenomas. 1,2-Dimethylhydrazine Kirsten rat sarcoma viral oncogene homolog Mus musculus
5 Microarray hybridization and clustering analysis demonstrated different expression profiles in adenomas from DMH-treated wild-type and DMH-treated K-ras{Val12} mice, indicating involvement of different molecular mechanisms including Erk/MapK and PI3K/Akt signalling in K-ras{Val12}-expressing adenomas. 1,2-Dimethylhydrazine Kirsten rat sarcoma viral oncogene homolog Mus musculus
6 Microarray hybridization and clustering analysis demonstrated different expression profiles in adenomas from DMH-treated wild-type and DMH-treated K-ras{Val12} mice, indicating involvement of different molecular mechanisms including Erk/MapK and PI3K/Akt signalling in K-ras{Val12}-expressing adenomas. 1,2-Dimethylhydrazine Kirsten rat sarcoma viral oncogene homolog Mus musculus
7 Array-comparative genomic hybridization analysis showed chromosome stability in both cohorts, with only a very few tiny alterations observed in one adenoma from a DMH-treated K-ras{Val12} mouse. 1,2-Dimethylhydrazine Kirsten rat sarcoma viral oncogene homolog Mus musculus
8 Taken together, these data show that mutant K-ras significantly promotes DMH-induced colorectal tumourigenesis, resulting in distinct changes in cell signalling and proliferation, but does not alter chromosome stability in the tumours. 1,2-Dimethylhydrazine Kirsten rat sarcoma viral oncogene homolog Mus musculus