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Human carcinoma-associated fibroblasts (CAF): co-culture with cancer cells vs. CAF only

ABSTRACT: Gene expression profiling of CAF co-cultured with human oral squamous cell carcinoma (OSCC) cells compared with mono-cultured CAF. To identify key molecular regulators expressed by carcinoma-associated fibroblasts (CAF) that promote cancer cell invasion, microarrays were performed by comparing co-cultured OSCC cells and CAF with monoculture controls. comparison 1: CAF co-cultured with OSCC vs. mono-cultured CAF comparison 2: OSCC co-cultured with CAF vs. mono-cultured OSCC 1.7X10(5) YD-10B OSCC cells and 1.7X10(5) CAF were seeded in the upper chamber and lower chamber, respectively, of 6-transwell plates containing collagen-coated 1 micrometer pore transmembrane filters (Becton Dickinson, Franklin Lakes, NJ, USA). Monoculture control samples were generated by culturing only CAF or OSCC on the same side of the filter as in the co-culture design.

ORGANISM(S): Homo sapiens

SUBMITTER: Kim Jin

PROVIDER: S-ECPF-GEOD-18532 | biostudies-other |

REPOSITORIES: biostudies-other

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Human carcinoma-associated fibroblasts (CAF): co-culture with cancer cells vs. CAF only

2009-10-14 | GSE18532 | GEO

Human carcinoma-associated fibroblasts (CAF): co-culture with cancer cells vs. CAF only

Project description:Gene expression profiling of CAF co-cultured with human oral squamous cell carcinoma (OSCC) cells compared with mono-cultured CAF. To identify key molecular regulators expressed by carcinoma-associated fibroblasts (CAF) that promote cancer cell invasion, microarrays were performed by comparing co-cultured OSCC cells and CAF with monoculture controls. comparison 1: CAF co-cultured with OSCC vs. mono-cultured CAF comparison 2: OSCC co-cultured with CAF vs. mono-cultured OSCC 1.7X10(5) YD-10B OSCC cells and 1.7X10(5) CAF were seeded in the upper chamber and lower chamber, respectively, of 6-transwell plates containing collagen-coated 1 micrometer pore transmembrane filters (Becton Dickinson, Franklin Lakes, NJ, USA). Monoculture control samples were generated by culturing only CAF or OSCC on the same side of the filter as in the co-culture design.

2010-06-21 | E-GEOD-18532 | biostudies-arrayexpress

Gene expression profile of cancer cells growing as a co-culture with carcinoma-associated fibroblasts (CAF)

Project description:Molecular mechanisms of the cancer cells-carcinoma associated fibroblasts (CAF) interactions growing in vitro conditions as a co-culture. The five canine mammary cancer cell lines were cultured with CAF (isolated from canine mammary cancer) for 72hrs. Then, the cancer cells and CAFs were sorted and the gene expression analysis was conducted. The control for each co-cultured cell line was the same cell line growing as a single culture. Dye-swap experiment, each cell line growing in the co-culture conditions was compared to the same cell line growing as a single culture.

2012-05-30 | E-GEOD-29601 | biostudies-arrayexpress

Gene expression profile of cancer cells growing as a co-culture with carcinoma-associated fibroblasts (CAF)

2012-05-31 | GSE29601 | GEO

The gene expression profiles of canine mammary cancer cells grown with carcinoma-associated fibroblasts (CAFs) as a co-culture in vitro.

Project description:BACKGROUND: It is supposed that fibroblasts present in tumour microenvironment increase cancer invasiveness and its ability to metastasize but the mechanisms have not been clearly defined yet. Thus, the current study was designed to assess changes in gene expression in five various cancer cell lines grown as a co-culture with the carcinoma-associated fibroblasts (CAFs) in vitro. RESULTS: A carcinoma-associated fibroblast cell line was isolated from a canine mammary cancer. Then, a co-culture of cancer cells with the CAFs was established and maintained for 72 hrs. Having sorted the cells, a global gene expression in cancer cells using DNA microarrays was examined. The analysis revealed an up-regulation of 100 genes and a down-regulation of 106 genes in the cancer cells grown as a co-culture with the CAFs in comparison to control conditions. The PANTHER binomial statistics tool was applied to determine statistically over-manifested pathways (p < 0.05). Bulk of the up-regulated genes are involved in the adhesion, the angiogenesis, the epithelial-mesenchymal transition (EMT) and generally take part in the developmental processes. These results were further confirmed using real-time qPCR. Moreover, a wound-healing assay and growth characteristics on Matrigel matrix showed that CAFs increase cancer cell migration and matrix invasion. CONCLUSION: The results of the current study showed that the co-culturing of cancer cells and the CAFs caused significant changes to the cancer gene expression. The presence of the CAFs in a microenvironment of cancer cells promotes adhesion, angiogenesis and EMT.

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Fibroblasts: Normal fibroblasts vs. Carcinoma-associated fibroblasts

Project description:Fibroblasts: Normal fibroblasts vs. Carcinoma-associated fibroblasts

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Proteomic Profiling of Human Prostate Cancer-associated Fibroblasts (CAF) Reveals LOXL2-dependent Regulation of the Tumor Microenvironment.

Project description:In prostate cancer, cancer-associated fibroblasts (CAF) exhibit contrasting biological properties to non-malignant prostate fibroblasts (NPF) and promote tumorigenesis. Resolving intercellular signaling pathways between CAF and prostate tumor epithelium may offer novel opportunities for research translation. To this end, the proteome and phosphoproteome of four pairs of patient-matched CAF and NPF were characterized to identify discriminating proteomic signatures. Samples were analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) with a hyper reaction monitoring data-independent acquisition (HRM-DIA) workflow. Proteins that exhibited a significant increase in CAF versus NPF were enriched for the functional categories "cell adhesion" and the "extracellular matrix." The CAF phosphoproteome exhibited enhanced phosphorylation of proteins associated with the "spliceosome" and "actin binding." STRING analysis of the CAF proteome revealed a prominent interaction hub associated with collagen synthesis, modification, and signaling. It contained multiple collagens, including the fibrillar types COL1A1/2 and COL5A1; the receptor tyrosine kinase discoidin domain-containing receptor 2 (DDR2), a receptor for fibrillar collagens; and lysyl oxidase-like 2 (LOXL2), an enzyme that promotes collagen crosslinking. Increased activity and/or expression of LOXL2 and DDR2 in CAF were confirmed by enzymatic assays and Western blotting analyses. Pharmacological inhibition of CAF-derived LOXL2 perturbed extracellular matrix (ECM) organization and decreased CAF migration in a wound healing assay. Further, it significantly impaired the motility of co-cultured RWPE-2 prostate tumor epithelial cells. These results indicate that CAF-derived LOXL2 is an important mediator of intercellular communication within the prostate tumor microenvironment and is a potential therapeutic target.

| S-EPMC6601211 | biostudies-literature

Gene expression of human cancer cells co-cultured with mouse astrocytes and fibroblasts after series of cross co-culture

Project description:Brain metastases are highly resistant to chemotherapy. Brain metastases are surrounded and infiltrated by activated astrocytes. To examine the genes whose expression is associated with chemo-resistance of brain-metastasized cancer cells, gene expression data were collected and analyzed from breast cancer cells and lung cancer cells co-cultured with astrocytes. Fibroblast cells were used as control. Human lung cancer cell PC14 was co-cultured with mouse astrocytes or fibroblasts for two rounds. Total RNAs were extracted from co-cultured cells and hybridized to human microarray.

| S-ECPF-GEOD-26292 | biostudies-other

Co-culture of human fibroblasts, smooth muscle and endothelial cells promotes osteopontin induction in hypoxia.

Project description:Arteriovenous fistulas (AVFs) are the preferred vascular access for haemodialysis of patients suffering from end-stage renal disease, a worldwide public health problem. However, they are prone to a high rate of failure due to neointimal hyperplasia and stenosis. This study aimed to determine if osteopontin (OPN) was induced in hypoxia and if OPN could be responsible for driving AVF failure. Identification of new factors that participate in remodelling of AVFs is a challenge. Three cell lines representing the cells of the three layers of the walls of arteries and veins, fibroblasts, smooth muscle cells and endothelial cells, were tested in mono- and co-culture in vitro for OPN expression and secretion in normoxia compared to hypoxia after silencing the hypoxia-inducible factors (HIF-1?, HIF-2? and HIF-1/2?) with siRNA or after treatment with an inhibitor of NF-kB. None of the cells in mono-culture showed OPN induction in hypoxia, whereas cells in co-culture secreted OPN in hypoxia. The changes in oxygenation that occur during AVF maturation up-regulate secretion of OPN through cell-cell interactions between the different cell layers that form AVF, and in turn, these promote endothelial cell proliferation and could participate in neointimal hyperplasia.

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Fibroblasts: Normal fibroblasts vs. Carcinoma-associated fibroblasts

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2024-01-08 | GSE164473 | GEO

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