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ABSTRACT: The16S rDNAsequencing data of tumor tissues from MMTV-PyMT mice

PROVIDER: PRJNA1041051 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR26846600_1.fastq.gz	Fastqsanger.gz
	SRR26846600_2.fastq.gz	Fastqsanger.gz
	SRR26846601_1.fastq.gz	Fastqsanger.gz
	SRR26846601_2.fastq.gz	Fastqsanger.gz
	SRR26846602_1.fastq.gz	Fastqsanger.gz

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Effect of Spot14 Loss on Gene Expression Profile of MMTV-PyMT Mouse Tumors

Project description:The objective of this study was to determine the effect of Thyroid Hormone Responsive Protein Spot14 (Spot14) loss on the gene expression profiles of tumors from MMTV-Polyomavirus middle-T antigen (PyMT) mice. MMTV-PyMT/S14-heterozygous mice were crossed with S14-heterozygous mice and 1 cm tumors from MMTV-PyMT control (wild-type S14) or MMTV-PyMT/S14-null offspring were profiled using Affymetrix gene arrays. Tumor latency was not different between groups; however, tumors lacking S14 grew significantly slower than control tumors. Loss of S14 also decreased the levels of de novo synthesized fatty acids in mammary tumors. In additional studies, performed on MMTV-Neu mice, we found that S14 overexpression was associated with increased tumor cell proliferation and elevated levels of tumor fatty acids. Gene expression profiling revealed that S14 loss and overexpression in mouse mammary tumors altered pathways associated with proliferation and metabolism. This study provides important information about the role of S14 in mammary tumorigenesis and tumor metabolism. Microarray analysis was performed on 4 mammary tumors from MMTV-PyMT mice and 4 tumors from MMTV-PyMT/S14-null mice.

2014-09-01 | E-GEOD-55886 | biostudies-arrayexpress

Expression data of MMTV-PyMT mice mammary tumor with or without JAM-A

Project description:Junction Adhesion Molecule-A (JAM-A) is present on leukocytes and platelets where it promotes cell adhesion and motility. We are interested in an interaction between JAM-A and tumor progression/metastases. To address this point, we mated JAM-A-/- mice and mouse mammary tumor model MMTV-PyMT mice which, which express polyoma middle T antigen under the control of mouse mammary tumor virus. MMTV-PyMT mice show 100% penetration of mammary tumor and highly metastases to lung. MMTV-PyMT mice without JAM-A show less primary tumor progression, therefore JAM-A enhance primary tumor progression. Then we are addressing the molecular mechanism of this phenomenon by in vivo. Furthermore, we would like to examine JAM-A deficient MMTV tumor signature. Each 3 MMTV-PyMT JAm-A+/+ (JamA+) and 3 MMTV JAM-A-/- (JamA-) mammary tumor were resected at early stages of tumor development for RNA extraction and hybridization on Affymetrix microarrays.

2010-10-01 | E-GEOD-22555 | biostudies-arrayexpress

Expression data of MMTV-PyMT mice mammary tumor with or without JAM-A

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Effect of Spot14 Loss on Gene Expression Profile of MMTV-PyMT Mouse Tumors

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Protein difference of breast cancer tissue in mice after radiation therapy and without radiation

Project description:In this study, radiation therapy was performed on mouse breast cancer spontaneous gene mice (MMTV-PyMT) to obtain radiation therapy model of breast cancer mice. To simulate clinical breast cancer radiotherapy and study the differential proteins of breast cancer radiotherapy resistance. MMTV-PyMT mice were randomly divided into two groups, and the radiotherapy group was given the same dose 5 times (3GY, once every 2 days) when the breast cancer tumor grew to an appropriate size (200mm3). The protein extracted from mouse tumor was analyzed by mass spectrometry.

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Transcriptional profile of mammary mouse MMTV-PyMT tumors and mammary gland from FVB/N mice

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Project description:We aimed to understand the transcriptome patterns of organ-derived cancer cell isolates from MMTV-PyMT mice. Tissues from primary tumors and organs harboring distal metastases were harvested from cancer bearing female mice. Although metastatic progression from primary tumors to lung tissue is well studied in the MMTV-PyMT model, metastases to other distal organs and the significance of intratumor heterogeneity across metastases from distal organs remain unclear. To gain insight, we established an array of metastatic cell lines harvested from the MMTV-PyMT breast cancer mouse model. Sequencing at bulk and single-cell level were performed and used to examine the effects of cell heterogeneity on metastases and organ tropism

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