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Effect of low protein diet on parenchymal tumor associated macrophages (TAMs) and stromal mammary tissue macrophages (MTMs) in control-PyMT and MYC overexpressing PyMT ( S100a8-creRosa26-LSL-MYCPyMT ) tumor

ABSTRACT: To study the low protein diet and cancer genetic effect on the macrophage in tumor, we treated the control-PyMT and S100a8-creRosa26-LSL-MYCPyMT (MYC-PyMT) mice reconstituted with wt bone marrow with low protein diet for 6 weeks

ORGANISM(S): Mus musculus

PROVIDER: GSE230247 | GEO | 2023/04/24

REPOSITORIES: GEO

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Gene expression profile at single nucleus level for tumor associated macrophage (TAMs) nuclei sorted from tumor of control-PyMT and S100a8-creRosa26-LSL-MYCPyMT (MYC-PyMT) mice treated with low protein diet

Project description:Nuclei of TAMs were sorted for single nucleus RNA sequencing from control-PyMT and MYC-PyMT tumor treated with low protein diet, and compare their transcriptome differences.

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Effect of MYC expression on mouse PyMT tumor

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Expression data from PyMT;Lys Cre:E2f3 f/f TAMs

Project description:To understand the underlying cause for reduced lung metastasis, we compared global gene expression profiles of F4/80+ FACS sorted tumor-associated macrophages (TAMs) PyMT;E2f3 f/f (control) and PyMT;Lys Cre:E2f3 f/f (experimental) mice. We compared gene expression profile between TAMs isolated from mammary tumors of PyMT;E2f3 f/f and PyMT;Lys Cre:E2f3 f/f mice

2017-04-04 | GSE67081 | GEO

S100A8/A9 activate key genes and pathways in colon tumor progression

Project description:Studies using bone marrow chimeric mice revealed that S100A8/A9 expression on myeloid cells is essential for development of colon tumors. Our results thus reveal a novel role for myeloid-derived S100A8/A9 in activating specific downstream genes associated with tumorigenesis and in promoting tumor growth and metastasis. Subconfluent cultures of MC38 cells were serum-starved for 16 hrs and activated with 10ug/mL S100A8/A9 for 6 hrs. Total RNA was extracted from unactivated or activated cells. 2 replicates each per stimulated cells, unstimulated cells, and control cells.

2011-02-01 | E-GEOD-26359 | biostudies-arrayexpress

PyMT 4 stages tumor progression microRNA sequencing

Project description:We sequenced mammary gland samples of MMTV-PyMT mouse from 4 stages (hyperplasia at week 6, adenoma/MIN at week 8, early carcinoma at week 10, and late carcinoma with lung metastasis at week 12) during tumor progression. We sacrificed 3 PyMT (FVB background) mice and 3 FVB control mice at each of the 4 stages, extracted small RNA and performed sequencing.

2016-06-10 | E-GEOD-83189 | biostudies-arrayexpress

S100A8/A9 activate key genes and pathways in colon tumor progression

2011-02-01 | GSE26359 | GEO

Single cell RNA sequencing on PyMT mammary gland tumor cells

Project description:We labeled PyMT control cells versus PyMT-GPx2 KD with GFP in vitro and then injected into mammary fat pad of mice for incubating 45 days. We then generated single cell suspension by FACS sorting from PyMT-control, GPx2 KD. 10X Genomics was used to make cDNA library. We then sequenced the samples with Illumina high throughput sequencing.

2022-01-13 | GSE152368 | GEO

Macrophage Gene Expression in PyMT Tumor Progression

Project description:Exome sequencing on macrophages sorted by flow cytometry from the mammary gland of 8- and 11-week-old female PyMT mice

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Expression data from PyMT P11-KO or P11-WT mammary tumours

Project description:S100A10 (p11) is a plasminogen receptor that regulatess cellular plasmin generation by cancer cells. In the current study we used the MMTV-PyMT mouse breast cancer model to investigate the role of p11 in oncogenesis. Genetic deletion of p11 resulted in significantly decreased tumor onset, growth rate and spontaneous pulmonary metastatic burden in the PyMT/p11-KO mice. This phenotype was accompanied by substantial reduction in Ki67 positivity, macrophage infiltration and decreased vascular density in the primary tumors, and appearance of invasive carcinoma and pulmonary metastasis. Surprisingly, immunohistochemical analysis of wild-type MMTV-PyMT mice failed to detect p11 expression in the tumors or metastatic tumor cells and loss of p11 did not decrease plasmin generation in the PyMT tumors and cells. Furthermore, tumor cells expressing p11 displayed dramatically reduced lung metastasis when injected into p11-depleted mice, further strengthening the stromal role of p11. Transcriptome analysis of the p11-depleted tumors showed marked reduction in genes involved in breast cancer development, progression, and inflammation such as AREG, MUC1 and S100A8. The PyMT/p11-KO tumors displayed remarkable increase in inflammatory cytokines such as IL-6, IL-10 and IFN-γ. Gene expression profiling and immunohistochemistry primary breast cancer samples showed that p11 mRNA and protein was significantly higher in tumors compared to normal mammary tissue. The mRNA expression was significantly associated with poor patient prognosis and significantly elevated in high grade, triple negative tumors and tumors with high proliferative index. We used microarray to detail the global programme of gene expression underlying reduced growth/establishment of P11-KO PyMT tumours.

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S100A8 treatment on gene expression of human umbilical vascular endothelial cells.

Project description:Previous studies showed that S100A8 and S100A9 are involved in neovascularization as well as in tumor development. At high concentrations, S100A8 and S100A9 cause inflammatory response or apoptosis mediated damage in vascular endothelial cells. But the effect of low concentrations of such proteins on endothelial cells remains unknown. This assay was performed to screen for genes that are involved in the response of Human Unbilican Vascular Endothelial Cells to low concentrations of S100A8. Human Umblical Vascular Endothelial Cells (HUVEC) were cultuered and treated with 10ug/mL S100A8 proteins for 4 or 24 hours. Gene profiling was carried out using two-color microarray. Two-condition experiment, S100A8 treatment vs. non-treatment. Two time points: 4 hours and 24 hours. Biological replicates at each time point: 3 control replicates, 3 treatment replicates.

2011-11-20 | E-GEOD-33768 | biostudies-arrayexpress

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