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Effect of metformin on mRNA expression, histone modifications, and chromatin accessibility in lung cancer cells

ABSTRACT: Effect of metformin on mRNA expression, histone modifications, and chromatin accessibility in lung cancer cells

PROVIDER: PRJNA591899 | ENA |

REPOSITORIES: ENA

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Effect of metformin on chromatin accessibility in lung cancer cells

Project description:The DNA regions whose chromatin accessibility was significantly altered by metformin were investigated in lung cancer cells by ATAC-seq. Metformin decreased chromatin accessibility in 159 regions but increased it in 124 sites. Most regions were outside of gene promoters defined as TSS ± 3kb. The most suppressed region was 4,667bp downstream of CHAC1, and the most enhanced site was 15,111bp downstream of ERRFI1.

2019-11-27 | GSE141059 | GEO

Effect of metformin on histone modifications in lung cancer cells

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Project description:The DNA regions that were associated with the metformin altered expressions of H3K4me3 and/or H3K27me3 were investigated by ChIP-seq, and the regions significantly up- or down-regulated by metformin were identified in H1299 cells. Over 80% of H3K4me3 were discovered within promoter regions, but less than 10% of H3K27me3 were observed in this area. Metformin significantly downregulated H3K4me3 level at the promoter regions of 1113 genes, but upregulated levels in the promoter regions of 1492 genes. Gene enrichment analysis revealed that abundant cell cycle related genes such as PIK3C3, CCNB2, CDK1, CDK6, and E2F8 were upregulated, while certain cell cycle suppressor genes such as CDKN1A (p21) and DDIT4 were downregulated. No specific biological functional cluster was detected in the H3K27me3 up- or downregulated genes.

2019-11-27 | GSE141053 | GEO

Effect of metformin on chromatin accessibility in lung cancer cells

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Effect of metformin on mRNA expression, histone modifications, and chromatin accessibility in lung cancer cells

Project description:This SuperSeries is composed of the SubSeries listed below.

2019-11-27 | GSE141060 | GEO

Antifibrotic effect of metformin in the lung

Project description:This experiment includes treatment of human pulmonary fibroblasts obtained from IPF patients with metformin. Since, we would like to investigate the transcriptome profile of these samples following metformin treatment. There will be two groups consist of four samples each. First group treated with metformin for 72 hours, while the second group treated with vehicle.

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Effect of metformin on mRNA expression in lung cancer cells

Project description:The genes whose transcription was significantly altered by metformin were investigated in H1299 cells by RNA-seq. Significantly up- or down-regulated genes were identified by cutoff value of |FC| >= 1.5. Metformin significantly downregulated mRNA levels of 499 genes while upregulating 615. KEGG (Kyoto Encyclopedia of Genes and Genomes) gene enrichment analysis revealed that the highly ranked clusters were cell cycle, apoptosis, cellular senescence and p53 signaling pathways. Multiple cell cycle checkpoint genes such as CCNA, CCNB, CCNE, CDK1, E2F2, E2F6, and E2F8 were downregulated, while certain cell cycle inhibitors such as CDKN2B (p15), CDKN1A (p21), DDIT4, and GADD45 were upregulated.

2019-11-27 | GSE141052 | GEO

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