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Identification of Novel Cholesteatoma-related Gene Expression Signatures Using Full-genome Microarrays

ABSTRACT: In this study, we investigated differentially expressed genes in human cholesteatomas in comparison to regular auditory canal skin using Whole Human Genome Microarrays that contain 19,596 human genes. In addition to already described up-regulated mRNAs in cholesteatoma, such as MMP9, DEFB2 and KRT19, we identified 3558 new cholesteatoma-related transcripts. 811 genes appear to be significantly differentially up-regulated in cholesteatoma. 334 genes were down-regulated more than 2-fold. Significantly regulated genes with protein metabolism activity include matrix metalloproteinases as well as PI3, SERPINB3 and SERPINB4. Genes like SPP1, KRT6B, PRPH, SPRR1B and LAMC2 are known as genes with cell growth and/or maintenance activity. Transport activity genes and signal transduction genes are LCN2, GJB2 and CEACAM6. The three cell communication genes are CDH19 and genes belonging to the S100 family.

ORGANISM(S): Homo sapiens

PROVIDER: GSE42256 | GEO | 2012/11/14

SECONDARY ACCESSION(S): PRJNA179448

REPOSITORIES: GEO

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Identification of Novel Cholesteatoma-related Gene Expression Signatures Using Full-genome Microarrays

Project description:In this study, we investigated differentially expressed genes in human cholesteatomas in comparison to regular auditory canal skin using Whole Human Genome Microarrays that contain 19,596 human genes. In addition to already described up-regulated mRNAs in cholesteatoma, such as MMP9, DEFB2 and KRT19, we identified 3558 new cholesteatoma-related transcripts. 811 genes appear to be significantly differentially up-regulated in cholesteatoma. 334 genes were down-regulated more than 2-fold. Significantly regulated genes with protein metabolism activity include matrix metalloproteinases as well as PI3, SERPINB3 and SERPINB4. Genes like SPP1, KRT6B, PRPH, SPRR1B and LAMC2 are known as genes with cell growth and/or maintenance activity. Transport activity genes and signal transduction genes are LCN2, GJB2 and CEACAM6. The three cell communication genes are CDH19 and genes belonging to the S100 family. Two samples from each patient (cholesteatoma vs. normal auditory canal skin) for each two-colour hybridisation experiment

2012-11-14 | E-GEOD-42256 | biostudies-arrayexpress

Fibroblasts in cholesteatoma activate osteoclasts.

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Project description:In our present study, we explored the circRNA expression profiles in cholesteatoma by deep RNA-seq analysis. We obtained totally 355 significantly differentially expressed circRNA in cholesteatoma, among which 101 were identified to be up-regulated, and 254 down-regulated. By constructing the circRNA-miRNA-mRNA ceRNA networks, it was discovered that circRNAs might contribute to cholesteatoma formation by functioning as ceRNAs for miRNAs.

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