Unknown,Transcriptomics,Genomics,Proteomics

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

ABSTRACT: 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.

ORGANISM(S): Canis lupus familiaris

SUBMITTER: Magdalena KrM-CM-3l

PROVIDER: E-GEOD-29601 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Project description:Molecular mechanisms of the cancer cells-macrophages interactions growing in vitro conditions as a co-culture. The five canine mammary cancer cell lines were cultured with monocytes sorted from the canine blood for 72hrs. Then, the cancer cells and macrophages 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, whereas the control for the macrophages growing in a co-culture conditions were macrophages growing as a single culture. Solid tumors are comprised of various cells, like cancer cells, resident stromal cells, migratory hemopoietic cells and so on. These cells regulate tumor growth and metastasis. Macrophages are probably the most important element of the interactions within the tumor microenvironment. However, the molecular mechanism how the tumor environment can educate tumor-associated macrophages (TAMs) toward a tumor-promoting phenotype still remains unknown. Moreover, there are no information how the presence of macrophages change the cancer cells phenotype. Exploring the underlying molecular mechanisms of these phenomena was the aim of this study. Solid tumors are comprised of various cells, like cancer cells, resident stromal cells, migratory hemopoietic cells and so on. These cells regulate tumor growth and metastasis. Macrophages are probably the most important element of the interactions within the tumor microenvironment. However, the molecular mechanism how the tumor environment can educate tumor-associated macrophages (TAMs) toward a tumor-promoting phenotype still remains unknown. Moreover, there are no information how the presence of macrophages change the cancer cells phenotype. Exploring the underlying molecular mechanisms of these phenomena was the aim of this study. Dye-swap experiment, each cell line growing in the co-culture conditions was compared to the same cell line growing as a single culture, macrophages growing in the co-culture conditions were compared to the macrophages growing as the single culture.

Project description:We have implemented an integrated Systems Biology approach to analyze overall transcriptomic reprogramming and systems level defense responses in the model plant Arabidopsis thaliana during an insect (Brevicoryne brassicae) and a bacterial (Pseudomonas syringae pv. tomato strain DC3000) attack. The main aim of this study was to identify the attacker-specific and general defense response signatures in the model plant Arabidopsis thaliana while attacked by phloem feeding aphids or pathogenic bacteria. Defense responses and networks, unique and specific for aphid or Pseudomonas stresses were identified. Our analysis revealed a probable link between biotic stress and microRNAs in Arabidopsis and thus opened up a new direction to conduct large-scale targeted experiments to explore detailed regulatory links among them. The presented results provide a first comprehensive understanding of Arabidopsis - B. brassicae and Arabidopsis - P. syringae interactions at a systems biology level. Arabidopsis thaliana (ecotype Colombia-0) seeds were sown into 6-cm-diameter pots filled with a sterile soil mix (1.0 part soil and 0.5 part horticultural perlite). Plants were kept in growth chambers VM-CM-6tsch VB 1514 (VM-CM-6tch Industrietechnik GmbH, Germany) with a 16/8 h (light/dark) photoperiod at 22/18 M-BM-0C, 40/70% relative humidity, and 70/0 mmol m-2 s-1 light intensity. The Pseudomonas syringae pv. tomato strain DC3000 culture was grown overnight in 10 ml of Kings B solution supplemented with antibiotics rifampicin (50 M-NM-<g mlM-bM-^HM-^R1) and kanamycin (25 M-NM-<g mlM-bM-^HM-^R1). Overnight culture was washed once in 10 mM MgCl2 and final cell densities were adjusted to approximately 0.20 at 600 nm (approximately 1.5 M-CM-^W 108 cfu mlM-bM-^HM-^R1) in 10 mM MgCl2. Plants were mock-challenged with 10 mM MgCl2 or inoculated with DC3000 strain, 3-4 leaves were infiltrated on the abaxial surface with a needleless 1-ml syringe.Whole rosettes were cut at the hypocotyls and harvested from Pseudomonas infested and mock-infected plants after 72 hours treatment. 4 biological replicates were prepared from each treatment, each containing rosettes from 15 individual plants. Differences in transcriptional responses were measured by comparing genes expression of Pseudomonas infected plants against mock-infected control plants.

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

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