Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Gene expression profile of cell lines 2106T, H1975 and MeWo after knockdown of PAEP.

ABSTRACT: Gene expression profile was analyzed after knockdown of PAEP in lung cancer cell lines 2106T and H1975 as well as in skin cancer cell line MeWo. The aim of the study was to investigate the role of PAEP and its protein product glycodelin in lung cancer cell lines. Cells were treated with a control siRNA or a siRNA pool of 4 siRNAs targeting PAEP. RNA of three biological replicates each was extracted and used for Affymetrix analyses.

ORGANISM(S): Homo sapiens

SUBMITTER: Marc Schneider

PROVIDER: E-GEOD-60888 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Glycodelin: A New Biomarker with Immunomodulatory Functions in Non-Small Cell Lung Cancer.

Schneider Marc A MA Granzow Martin M Warth Arne A Schnabel Philipp A PA Thomas Michael M Herth Felix J F FJ Dienemann Hendrik H Muley Thomas T Meister Michael M

Clinical cancer research : an official journal of the American Association for Cancer Research 20150421 15

<h4>Purpose</h4>In recent years, immune therapeutic strategies against non-small cell lung cancer (NSCLC) based on tissue-derived biomarkers, for example PD1/PD-L1 (CD274), have evolved as novel and promising treatment options. However, the crosstalk between tumor and immune cells is poorly understood. Glycodelin (gene name PAEP), initially described in the context of pregnancy and trophoblastic implantation, is a secreted immunosuppressive glycoprotein with an as-of-yet largely unknown function ...[more]

PMID: 25901080

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Project description:Background: Resveratrol has been demonstrated to exert pleiotropic health beneficial effects. Among the various mechanisms of action antioxidant, anti-inflammatory, cardio- and cancer-protective outcomes have been reported. Particularly, an important function of this natural compound against atherosclerosis has been postulated and the action of resveratrol on lipids and lipoprotein levels seems to be of relevance in this pathology, but also for other metabolic diseases. Accordingly, taking into consideration the straight contact of resveratrol with the intestine, this study aimed to gain insights into the protective effects of trans-resveratrol on enterocyte physiology and metabolism in proinflammatory conditions. For this purpose, a DNA microarray analysis was conducted in Caco-2 cells where global gene expression profile at intestinal level was screened. Cells were pretreated with 50 Î¼Î? of trans-resveratrol and, subsequently, lipopolysaccharide (LPS) was added for 48 h. Results: The microarray analysis revealed 121 genes differentially expressed between resveratrol-treated and non-treated cells (B> 0). Four genes, inhibitor of DNA binding 1(ID1), histidine-rich glycoprotein (HRG), NADPH oxidase (NOX1) and sprouty homolog 1 (SPRY), were upregulated by LPS treatment, but significantly downregulated with trans-resveratrol pretreatment (padj< 0.05). Moreover, genes implicated in pathways related to lipid metabolism, such as synthesis of lipids (z-score= -1.195) and concentration of cholesterol (z-score= -0.109), were markedly downregulated by trans-resveratrol. Other genes implicated in lipid metabolism, but also in cell death and survival function, such as transcription factors KrÃ¼ppel-like factor 5 (KLF5) and amphiregulin (AREG), were also significantly inhibited by trans-resveratrol pretreatment. RT-qPCR-data confirmed the microarray results. Special mention deserves acyl-CoA synthetase long-chain family member 3 (ACSL3) and endothelial lipase (LIPG), which were downregulated by the stilbene and have been previously associated with fatty acid synthesis and obesity in other tissues. Conclusions: This study envisages that trans-resveratrol might exert important anti-lipogenic effect at intestinal level under proinflammatory conditions, which have not been previously described. The experiment was conducte in Caco-2 cells. There were three experimental groups (n=5), Caco-2 cells stimulated with lipopolysaccharides (LPS), Caco-2 cells stimulated with LPS and pre-treated with trans-resveratrol (LPS+RSV) and non-treated Caco-2 cells.

Dataset Information

Gene expression profile of cell lines 2106T, H1975 and MeWo after knockdown of PAEP.

Publications

Glycodelin: A New Biomarker with Immunomodulatory Functions in Non-Small Cell Lung Cancer.

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