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Expression data from human osteosarcoma bone primaries or lung metastases

ABSTRACT: The high concentration of Well5 cells was resuspended into 20μl PBS, the needle along the tibia direction, before reaching in a breakthrough sense, direct injection cells. At 7 days after injection, proximal tibia was able to reach mass production. At 20 days after injection, the proximal tibia mass increased.If prolonging exposure by BLI,this stage displayedthat tumor cell signalsbegan to lung metastasis. Osteosarcoma orthotopic lung metastasis model was successfully constructed. Total RNA was extracted from sorted osteosarcoma cells of the primary site and lung metastases using Trizol (Invitrogen). We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated genes during osteosarcoma lung metastasis. In support of the notion that fibrosis marks the lung metastasis, the expression of numerous fibrosis-related genes such as FN1, COLs, and MMPs were upregulated from the primary site to lung metastasis in Well5-luc orthotopic inoculation model.

ORGANISM(S): Homo sapiens

PROVIDER: GSE85537 | GEO | 2016/08/13

SECONDARY ACCESSION(S): PRJNA338757

REPOSITORIES: GEO

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Expression data from human osteosarcoma bone primaries or lung metastases

Project description:The high concentration of Well5 cells was resuspended into 20Î¼l PBS, the needle along the tibia direction, before reaching in a breakthrough sense, direct injection cells. At 7 days after injection, proximal tibia was able to reach mass production. At 20 days after injection, the proximal tibia mass increased.If prolonging exposure by BLI,this stage displayedthat tumor cell signalsbegan to lung metastasis. Osteosarcoma orthotopic lung metastasis model was successfully constructed. Total RNA was extracted from sorted osteosarcoma cells of the primary site and lung metastases using Trizol (Invitrogen). We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated genes during osteosarcoma lung metastasis. In support of the notion that fibrosis marks the lung metastasis, the expression of numerous fibrosis-related genes such as FN1, COLs, and MMPs were upregulated from the primary site to lung metastasis in Well5-luc orthotopic inoculation model. Total RNA was extracted from sorted osteosarcoma cells using Trizol (Invitrogen). Gene expression profiling was conducted by Shanghai Biotechnology Corporation using Affymetrix U133 plus 2.0 arrays (Affymetrix, Santa Clara, CA). All data were analyzed according to the manufacturerâ??s protocol. Raw data generated from Affymetrix CEL files were normalized by RMA background correction; values were log2 transformed. For the enrichment of P values of each GO term, we used Fisherâ??s exact test to calculate P values and R package stats to calculate FDR (q value) by BH method (www.r-project.org).

2016-08-13 | E-GEOD-85537 | biostudies-arrayexpress

Expression profiling of 143B-shCtrl and 143B-shIRX1 stable osteosarcoma cell lines

Project description:Pulmonary metastasis is the main cause of medical failure and death of osteosarcoma patients. Our recent study identified IRX1 as a potential metastasis-driving gene in osteosarcoma. Studies showed that IRX1 can promote the migration, invasion and anoikis resistance of osteosarcoma cells. We generated 143B stable IRX1 knockdown and control cell lines, and found that IRX1 knockdown can inhibit the pulmonary metastasis of 143B cells in orthotopic mouse osteosarcoma model. Expression microarrays are performed in143B-shCtrl and 143B-shIRX1 cells to study the mechanism of IRX1 on promoting metastasis of osteosarcoma

2015-08-25 | E-GEOD-55958 | biostudies-arrayexpress

Expression profiling of 143B-shCtrl and 143B-shIRX1 stable osteosarcoma cell lines

2015-08-25 | GSE55958 | GEO

Expression data from two pair of osteosarcoma sublines with difeerental pulmonary

Project description:Metastasis of tumor consists of a complex serias of cascades . Molecular mechanisms needs to be elucidated. We used microarrays to explore the global change of gene expression betwwen two pairs of osteosarcoma sublines screened by different method. The assay was performed among three pairs of cublines, the first two pairs of sublines comes from the different passage of sublines established with orthotopic transplantation under the established cell line named Sosp-9607 ,the other pair was screened by the tail-vein injection method of commercial avaliable cell line-Saos-2.

2009-11-10 | E-GEOD-18947 | biostudies-arrayexpress

Targeted Pten deletion plus p53-R270H mutation in mouse mammary epithelium induces aggressive claudin-low and basal-like breast cancer

Project description:WAP-Cre:Ptenf/f:p53lox.stop.lox_R270H composite mice were generated by genetic crossing. In these mice, Pten is deleted and a R270H p53 mutation in the DNA binding domain is induced upon expression of Cre recombinase in pregnancy-identified alveolar progenitors. Tumors were characterized by histology, marker analysis, various bioinformatics methods, high-throughput (HTP) FDA-drug screen as well as orthotopic injection to quantify tumor initiating cells (TICs) and tail-vein injection to identify lung-metastasis. Expression data comparing 2 types of Pten-deficient tumors (spindle and poorly differentiated) with other modles of mouse mammary tumors

2015-12-15 | GSE75989 | GEO

Molecular changes in the lung during otseosarcoma pre-metastatic niche formation

Project description:To profile the molecular changes in the lung during osteosarcoma pre-metastatic niche formation, we performed RNA-seq of lungs harvested from D0 and D14 after orthotopic implantation of K7M2 cells in balb/c mice.

2024-01-15 | GSE241824 | GEO

Arsenic trioxide inhibits the metastasis of osteosarcoma through suppressing transcriptional activity of GLI2 and downregulation of ribosomal protein S3

Project description:Aberrations in the Hedgehog (Hh) pathway are known to related to several malignancies. However, little is known about the function of GLI2, a transcription factor in the Hh pathway, in osteosarcoma. Osteosarcoma is the most frequent primary bone sarcoma in children and adolescents. Despite survival rates of osteosarcoma patients have increased, the prognosis of patients with metastasis remains poor. Therefore, the development of novel therapeutic strategies for osteosarcoma patients is development of novel therapeutic strategies for osteosarcoma patients is urgently needed. Aberrations in the Hedgehog (Hh) pathway are known to related to several malignancies. However, little is known about the function of GLI2, a transcription factor in the Hh pathway, in osteosarcoma. Our findings revealed that GLI2 was overexpressed in osteosarcoma tissues. Additionally, GLI2 is involved in the metastasis of osteosarcoma cells through the regulation of ribosomal protein S3 expression. Furthermore, we showed that arsenic trioxide (ATO) suppressed the invasion and lung metastasis of osteosarcoma cells by the inhibition of GLI transcription. Consequently, these finding reveal a novel function of GLI2 in the metastasis of osteosarcoma and that ATO may be a new therapeutic agentay be a new therapeutic agent. We revealed that a novel function of GLI2 in the metastasis of osteosarcoma and that ATO may be a new therapeutic agent for preventing osteosarcoma metastasis. Negative siRNA(U-2OS) and GLI2 siRNA(U-2OS)

2012-12-14 | E-GEOD-42903 | biostudies-arrayexpress

Gene expression analysis of lung cancer cells in the presence of lung fibrosis

Project description:To investigate the interaction between lung cancer cell and lung fibrosis in vivo, gene expression analysis was performed using orthotopic tumor bearing animal model with C57BL/6 mice and Lewis Lung Carcinoma cells (LC model) and LC model with bleomycin-induced lung fibrosis (IP+LC model).

2023-03-08 | GSE226270 | GEO

Targeted Pten deletion plus p53-R270H mutation in mouse mammary epithelium induces aggressive claudin-low and basal-like breast cancer

2015-12-15 | E-GEOD-75989 | biostudies-arrayexpress

Positively selected enhancer elements endow tumor cells with metastatic competence

Project description:Metastasis results from a complex set of traits acquired by tumor cells, distinct from those necessary for tumorigenesis. Here, we investigate the contribution of enhancer elements to the metastatic phenotype of osteosarcoma. Through epigenomic profiling, we identify substantial differences in signature enhancer-histone marks between near-isogenic pairs of high and low lung-metastatic osteosarcoma cells. We term these regions Metastatic Variant Enhancer Loci (Met-VELs). Met-VELs drive coordinated waves of gene expression during metastatic colonization of the lung. Met-VELs cluster non-randomly, indicating that activity of these enhancers and their associated gene targets is positively selected. Osteosarcoma lung metastasis is inhibited by global interruptions of Met-VEL associated gene expression.

2018-01-15 | GSE74230 | GEO

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