PC3 cells gene expression after p-coumaric acid treatment
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PROVIDER: PRJNA655181 | ENA |
REPOSITORIES: ENA
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Project description:Whole genome expression monitoring of human adenocarcinoma prostate cancer (PC3) cell line, after sub-lethal treatment with p-coumaric acid
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Project description:Expression data from xenograft in BALB/c 6-wk-old nude mice with PC3 prostate cancer cells stably expressing PML or a vector control after treatment of the mice with palbociclib (100mg/kg/day diluted in sodium lactate 50mM pH4 given by gavage) during 5 consecutive days PML plays a role in the senescence tumor suppressor response of normal cells to oncogenic stress. PML also mediates therapy-induced senescence in acute promyelocytic leukemia cells after treatment with retinoic acid. However, many tumor cell lines fail to engage a complete senescence response to PML activation. Interestingly, in vivo and in vitro combination of PML overexpression with CDK inhibition induce senescence in PC3 prostate cancer cells. We used microarray to characterize the gene expression profile of PC3 stably expressing PML or a control vector after subcutaneous injection in BALB/c 6-wk-old nude mice and treatment of the mice with palbociclib (100mg/kg/day) during 5 consecutive days..
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Project description:Effect of U94 in Gene Expression in PC3 Cells Keywords: repeat sample
2005-03-15 | GSE1868 | GEO
Project description:BACKGROUND: Cancer stem-like cells are proposed to sustain solid tumors by virtue of their capacity for self-renewal and differentiation to cells that comprise the bulk of the tumor, and have been identified for a variety of cancers based on characteristic clonal morphologies and patterns of marker gene expression. METHODS: Single cell cloning and spheroid culture studies were used to identify a population of cancer stem-like cells in the androgen-independent human prostate cancer cell line PC3. RESULTS: We demonstrate that, under standard culture conditions, ~10% of PC3 cells form holoclones with cancer stem cell characteristics. These holoclones display high self-renewal capability in spheroid formation assays under low attachment and serum-free culture conditions, retain their holoclone morphology when passaged at high cell density, exhibit moderate drug resistance, and show high tumorigenicity in scid immunodeficient mice. PC3 holoclones readily form spheres, and PC3-derived spheres yield a high percentage of holoclones, further supporting their cancer stem cell-like nature. We identified one gene, FAM65B, whose expression is consistently up regulated in PC3 holoclones compared to paraclones, the major cell morphology in the parental PC3 cell population, and two genes, MFI2 and LEF1, that are consistently down regulated. This molecular profile, FAM65Bhigh/MFI2low/LEF1low, also characterizes spheres generated from parental PC3 cells. The PC3 holoclones did not show significant enriched expression of the putative prostate cancer stem cell markers CD44 and integrin α2β1. PC3 tumors seeded with holoclones showed dramatic down regulation of FAM65B and dramatic up regulation of MFI2 and LEF1, and unexpectedly, a marked increase in tumor vascularity compared to parental PC3 tumors, suggesting a role of cancer stem cells in tumor angiogenesis. CONCLUSIONS: These findings support the proposal that PC3 tumors are sustained by a small number of tumor-initiating cells with stem-like characteristics, including strong self-renewal and pro-angiogenic capability and marked by the expression pattern FAM65Bhigh/MFI2low/LEF1low. These markers may serve as targets for therapies designed to eliminate cancer stem cell populations associated with aggressive, androgen-independent prostate tumors such as PC3. (Mol Cancer. 2010 Dec 29;9:319. doi: 10.1186/1476-4598-9-319; PMID: 21190562; PMCID: PMC3024252).
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Project description:Whole genome transcriptional profiling was used to characterize the response of Lactobacillus plantarum WCFS1 human isolate during challenge with p-coumaric acid (p-CA). Twelve independent experiments were performed and mixed at random in groups of four for total of three RNA samples. The transcriptional profile reveals a massive induction of genes involved in stress resistance and detoxification-related functions and a global shutdown of growth-associated processes. Biological triplicates: untreated cells: Control vs. p-coumaric treated cells: Experimental
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