Project description:This SuperSeries is composed of the following subset Series: GSE29117: Mammary carcinomas in WAP-SV40 transgenic mice [gene expression] GSE31097: Mammary carcinomas in WAP-SV40 transgenic mice [aCGH] GSE33038: Involuted normal mammary gland in WAP-SV40 transgenic mice [gene expression] Refer to individual Series
Project description:Upon induction, WAP-T mice express two synergistically acting SV40 early region encoded proteins, large (LT) and small (sT) tumor antigens in the mammary epithelium, recapitulating thereby the loss of p53 and Rb function and deregulation of PP2A-controlled mitogenic pathways in human breast cancer. In primiparous mice, WAP-promoter driven expression of SV40 proteins induces well and poorly differentiated (respectively low- and high-grade) mammary adenocarcinomas. We here studied the postulated mutant p53 (mutp53) 'gain of function' during mammary tumor development, progression and metastasis by crossing WAP-T mice with mutant p53 transgenic WAP-mutp53 mice.
Project description:Upon induction, WAP-T mice express two synergistically acting SV40 early region encoded proteins, large (LT) and small (sT) tumor antigens in the mammary epithelium, recapitulating thereby the loss of p53 and Rb function and deregulation of PP2A-controlled mitogenic pathways in human breast cancer. In primiparous mice, WAP-promoter driven expression of SV40 proteins induces well and poorly differentiated (respectively low- and high-grade) mammary adenocarcinomas. We here studied the postulated mutant p53 (mutp53) 'gain of function' during mammary tumor development, progression and metastasis by crossing WAP-T mice with mutant p53 transgenic WAP-mutp53 mice. This study includes gene expression analysis of 12 high grade mammary carcinoma samples. An alternative probe set mapping published by the AffyProbeMiner project (remapped transcript consistent cdf-file) was used to calculate probe set signals of 6 mono-trangenic WAP-T-NP8 samples from the dataset GSE29117 and 6 bi-transgenic WAP-T-NP8 x WAP-W10 (mutp53R245R) samples.
Project description:Transgenic expression in mice of two synergistically acting SV40 early region encoded proteins, large (LT) and small (sT) tumor antigens, in the mammary epithelium recapitulates loss of p53 and Rb function and deregulation of PP2A-controlled mitogenic pathways in human breast cancer. In primiparous mice, WAP-promoter driven expression of SV40 proteins induces well and poorly differentiated mammary adenocarcinomas. We performed a correlative aCGH and gene expression analysis of 25 monofocal tumors, representing four histopathological grades, to explore the molecular traits of SV40-induced mammary tumors and to emphasize the relevance of this tumor model for human breast tumorigenesis. CGH analysis of 15 mammary carcinoma samples of the NP8 WAP-SV40 mouse line.
Project description:Transgenic expression in mice of two synergistically acting SV40 early region encoded proteins, large (LT) and small (sT) tumor antigens, in the mammary epithelium recapitulates loss of p53 and Rb function and deregulation of PP2A-controlled mitogenic pathways in human breast cancer. In primiparous mice, WAP-promoter driven expression of SV40 proteins induces well and poorly differentiated mammary adenocarcinomas. We performed a correlative aCGH and gene expression analysis of 25 monofocal tumors, representing four histopathological grades, to explore the molecular traits of SV40-induced mammary tumors and to emphasize the relevance of this tumor model for human breast tumorigenesis.
Project description:Transgenic expression in mice of two synergistically acting SV40 early region encoded proteins, large (LT) and small (sT) tumor antigens, in the mammary epithelium recapitulates loss of p53 and Rb function and deregulation of PP2A-controlled mitogenic pathways in human breast cancer. In primiparous mice, WAP-promoter driven expression of SV40 proteins induces well and poorly differentiated mammary adenocarcinomas. We performed a correlative aCGH and gene expression analysis of 25 monofocal tumors, representing four histopathological grades, to explore the molecular traits of SV40-induced mammary tumors and to emphasize the relevance of this tumor model for human breast tumorigenesis. Gene expression analysis of 6 involuted normal mammary gland 30 days post weaning in WAP-SV40 T1 and BALB/c samples.
Project description:Transgenic expression in mice of two synergistically acting SV40 early region encoded proteins, large (LT) and small (sT) tumor antigens, in the mammary epithelium recapitulates loss of p53 and Rb function and deregulation of PP2A-controlled mitogenic pathways in human breast cancer. In primiparous mice, WAP-promoter driven expression of SV40 proteins induces well and poorly differentiated mammary adenocarcinomas. We performed a correlative aCGH and gene expression analysis of 25 monofocal tumors, representing four histopathological grades, to explore the molecular traits of SV40-induced mammary tumors and to emphasize the relevance of this tumor model for human breast tumorigenesis. Gene expression analysis of 25 mammary carcinoma samples of two different WAP-SV40 mouse lines, T1 and NP8. Three involuted mammary gland tissues were included in the study as reference samples.