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Senescent stroma mediates immunosuppression and drives breast cancer progression [scRNA-seq]

ABSTRACT: Tumor-bearing mammary fat pads from MMTV-PyMT mice were digested with 2mg/mL Collagenase A and 2U/mL Dnase.

ORGANISM(S): Mus musculus

PROVIDER: GSE229355 | GEO | 2024/04/29

REPOSITORIES: GEO

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Senescent stroma mediates immunosuppression and drives breast cancer progression [CAF]

Project description:To investigate the gene expression profile of different cancer associated fibroblasts (CAF) subpopulations, we harvested tumors and sorted 4 CAF populations from 3 FVB background 10-week-old MMTV-PyMT mice.

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p38MAPKa stromal reprogramming sensitizes metastatic breast cancer to immunotherapy

Project description:Femurs bearing breast metastatases (5-pooled animals per sample) were crushed and digested with 2mg/ml Collagenase A.

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Primary peri-aorta adipose tissue stromal vascular fraction single cell RNA sequencing

Project description:Peri-aorta adipose tissue were digested with collagense I (2mg/ml) at 37 C for 30 mins

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RANKL-RANK activation in mmtv-Pymt primary tumor cultures

Project description:MMTV-PyMT late carcinomas, orthotopically injected in syngeneic RANK+/+ mice were digested until single cells and cultured over Matrigel in the prescence or abscence of RANKL for 24 hours.

2022-12-27 | GSE143715 | GEO

RNA analysis of Nr4a1 and Nr4a1-knockout mammary tumor cells from MMTV-PyVT transgenic mice

Project description:MMTV-PyVT Mammary tumors were harvested from PyVT-wild-type (WT), PyVT-Nr4a1 knockout (KO) littermates on a congenic FVB/NJ background,minced and incubated with collagenase type I digestion solution .The digested Mammary tumor cells were collected and maintained in DMEM medium containing 10% FBS for 24 hour.

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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

Single-cell RNA profiling of mammary gland tumours in MMTV-PyMT mouse model of breast cancer.

Project description:Here, we use single cell sequencing to delineate the heterogeneity of tumours from the genetically engineered MMTV-PyMT mouse model of breast cancer (MMTV-PyMT::K14Cre::Rosa-tdTomato mice).

2024-05-08 | GSE159478 | GEO

Expression data from MMTV-PyMT Induced Tumors

Project description:Loss of E2F transcription factos alters metastatic capacity of MMTV-PyMT tumors. We used microarrays to futher characterize the effects of E2F loss on mammary tumorigenesis in MMTV-PyMT mice.

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Senescent stroma mediates immunosuppression and drives breast cancer progression

Project description:This SuperSeries is composed of the SubSeries listed below.

2024-04-29 | GSE229356 | GEO

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

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