Inflammation has pleiotropic effects on carcinogenesis and tumor progression. Signaling through the adaptor protein MyD88 promotes carcinogenesis in several chemically induced cancer models. Interestingly, we observed a protective role for MyD88 in the development of AOM/DSS colitis-associated cancer. The inability of Myd88-/- mice to heal ulcers generated upon injury creates an inflammatory environment that increases the frequency of mutations and results in a dramatic increase in adenoma formation and cancer progression. Susceptibility to colitis development and enhanced polyp formation were also observed in Il18-/- mice upon AOM/DSS treatment, suggesting that the phenotype of MyD88 knockouts is in part due to their inability to signal through the IL-18 receptor. This study revealed a previously unknown level of complexity surrounding MyD88 activities downstream of different receptors that differentially impact tissue homeostasis and carcinogenesis.
MyD88-mediated signaling prevents development of adenocarcinomas of the colon: role of interleukin 18.
Specimen part, Disease, Disease stage
View SamplesAdenoid cystic carcinoma (ACC) is an uncommon malignant neoplasm (incidence of 0.35 per 100,000) that occurs in different body sites. It most often arises in salivary glands and other secretory glands in the head and neck region. To find the gene expression signatures of ACC, we performed microarray experiments to compare ACC xenograft tumor models and normal tissue samples. We used microarrays to detail the global program of gene expression underlying adenoid cystic carcinoma and identified distinct classes of up- and down-regulated genes compared to non-neoplastic salivary tissue.
No associated publication
Specimen part
View SamplesWe have investigated the role of actin dynamics and the effect of actin cytoskeleton modifying agents on retinoid receptor-mediated transactivation. Using Nef, an actin modifying HIV-1 protein, the role of LMK1/CFL1-mediated actin dynamics in receptor function was studied. The effect of Nef expression on transcriptome was investigated following transfection of HEK293 cells with Nef-expressing plasmid. The array data identified Nef-induced inhibition of a number of genes that contain retinoid receptor binding sites in their promoters.
LIM kinase 1 - dependent cofilin 1 pathway and actin dynamics mediate nuclear retinoid receptor function in T lymphocytes.
Cell line
View SamplesThe microarray gene expression pattern was studied using 798 different cancer cell lines. The cancer cell lines are obtained from different centers. Annotation information were provided in the supplementary file.
No associated publication
Specimen part, Disease, Disease stage
View SamplesTCGA Analysis of RNA Expression for Glioblastoma Multiforme Using Affymetrix HT_HG-U133A
No associated publication
Sex, Age, Specimen part, Disease, Disease stage, Subject
View SamplesThis is Rembrandt gene expression data (Affymetrix HG-U133Plus2).
Rembrandt: helping personalized medicine become a reality through integrative translational research.
Specimen part, Disease, Disease stage
View SamplesTCGA Analysis of RNA Expression for Ovarian Serous Cystadenocarcinoma Using Affymetrix HT_HG-U133A
No associated publication
Sex, Age, Specimen part, Disease stage, Subject
View SamplesTCGA Analysis of RNA Expression for Glioblastoma Multiforme Using Affymetrix HT_HG-U133A
No associated publication
Sex, Age, Specimen part, Disease stage, Subject
View Samplesbreast cancer
No associated publication
Disease
View SamplesThe incidence of prostate cancer is frequent, occurring in almost one-third of men older than 45 years. Only a fraction of the cases reach the stages displaying clinical significance. Despite the advances in our understanding of prostate carcinogenesis and disease progression, our knowledge of this disease is still fragmented. Identification of the genes and patterns of gene expression will provide a more cohesive picture of prostate cancer biology. PATIENTS AND METHODS: In this study, we performed a comprehensive gene expression analysis on 152 human samples including prostate cancer tissues, prostate tissues adjacent to tumor, and organ donor prostate tissues, obtained from men of various ages, using the Affymetrix (Santa Clara, CA) U95a, U95b, and U95c chip sets (37,777 genes and expression sequence tags). RESULTS: Our results confirm an alteration of gene expression in prostate cancer when comparing with nontumor adjacent prostate tissues. However, our study also indicates that the gene expression pattern in tissues adjacent to cancer is so substantially altered that it resembles a cancer field effect. CONCLUSION: We also found that gene expression patterns can be used to predict the aggressiveness of prostate cancer using a novel model.
Gene expression alterations in prostate cancer predicting tumor aggression and preceding development of malignancy.
Sex, Age, Specimen part, Disease, Disease stage
View Samples