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Transcriptomic analysis of hepatocellular carcinoma cell lines HepG2 treated with Sorafenib and transfected with miR-200c-3p inhibitor, and miR-222-5p and miR-512-3p mimics

ABSTRACT: Hepatocellular carcinoma (HCC) is one of the most common causes of death worldwide and the fourth most prevalent type of cancer. Whereas curative treatments such as liver transplantation, ablation or surgery are optimal for early stages, only paliative treatments are given to intermediate and advanced stages of the disease. Despite the introduction of immune regulators as first-line treatments for advanced stages, Sorafenib is still the standard of care in the clinical practice. In cell lysates, anti-tumoral properties of Sorafenib were related to upregulation of miR-200c-3p (anti-tumoral miRNA) at 6 hours of treatment and downregulation of miR-222-5p and miR-512-3p (pro-tumoral miRNAs) at 24 hours. We have identified these miRNA biomarkers of Sorafenib treatment response in plasma of patients with advanced HCC treated with Sorafenib. In particular, miR-200c-3p has been related to increased survival benefit whereas miR-222-5p and miR-512-3p have been related to worse prognosis. Our study has sequenced HepG2 cells treated with Sorafenib and miR-200c-3p inhibitor, and transfected with miR-222-5p and miR-512-3p mimics to unravel the molecular pathways governing Sorafenib response

ORGANISM(S): Homo sapiens

PROVIDER: GSE201695 | GEO | 2022/04/28

REPOSITORIES: GEO

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miR-200c-3p, miR-222-5p and miR-512-3p are outcome circulating biomarkers in patients with hepatocarcinoma under Sorafenib treatment

Project description:miR-200c-3p, miR-222-5p and miR-512-3p are outcome circulating biomarkers in patients with hepatocarcinoma under Sorafenib treatment

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Transcriptomic analysis of hepatocellular carcinoma cell lines HepG2 treated with Sorafenib and transfected with miR-200c-3p inhibitor, and miR-222-5p and miR-512-3p mimics

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PETACC-8 miR-31-3p and miR-31-5p Ancillary Study

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MiRNA regulation of auto-anticoagulation in hibernating black bears: A Novel Translational Approach

Project description:Hibernating American black bears have significantly different clotting parameters than their active summer counterparts, affording them innate protection against venous thromboembolism (VTE) despite prolonged periods of immobility. Physiologic changes that occur during hibernation are thought to result from differential gene expression, rather than novel genes, and there is increasing evidence miRNAs may play an important role this regulation. We propose that significant differences exist in miRNA expression in the plasma of hibernating black bears compared to their active counter parts (summer), which lead to critical gene regulation responsible for auto-anticoagulation during hibernation. Methods: Blood was collected from 21 American black bears in the Northern Michigan Peninsula in summer 2017 and winter 2018 (11 active, 10 hibernating). Plasma was extracted Results: Fifteen miRNAs were differentially expressed in the plasma of hibernating black bears. Nine miRNAs were significantly downregulated (miR10b-3p, miR-136-3p, miR-181c-5p , miR-200a-3p, miR-200b-5p, miR-200c-3p, miR-320b, miR-320c and miR-320d) and six miRNAs were significantly upregulated (miR-15a-5p, miR-15b-3p, miR-15b-5p, miR-16-5p, miR-92a-3p, miR-150-5p) during hibernation. Twelve miRNAs had no identifiable targets, but miR-200a-3p, miR-200b-5p and miR-200c-3p found to be targets of SERPINC1, the gene responsible for the production of antithrombin (AT). Conclusions: Several miRNAs were differentially expressed in hibernating bears (12). Most importantly miR-200a-3p, miR-200b-5p and miR-200c-3p were all downregulated in hibernation and associated with increased expression of SERPINC1 and production of AT. AT is a powerful anticoagulant and this finding may explain the hibernating black bears ability to achieve auto-anticoagulation and protection from VTE.

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MicroRNA Profiles and Differential Expression in Normal Skin Samples from the Uyghur and Han Populations in Xinjiang

Project description:This study investigated the microRNA (miRNA) expression profiles in normal skin samples from the Uyghur and Han populations in Xinjiang and analyzed the miRNA expression differences between the two populations. The 7th generation miRCURYTM LNA Array kit (containing 3100 probes) was used to detect the miRNA expression in 10 Uyghur and 10 Han normal skin samples and to compare the miRNA expression differences between the two populations. A total of 2041 miRNAs were present in normal Uyghur and Han skin samples. In particular, 2039 miRNAs were present in normal Uyghur skin, of which 295 miRNAs were expressed more than 2.0-fold and 1461 miRNAs were expressed less than 0.5-fold of the average value. Moreover, 2041 miRNAs were expressed in normal Han skin, of which 279 miRNAs were expressed more than 2.0-fold and 1414 miRNAs were expressed less than 0.5-fold of the average value. Considering both populations together, 228 miRNAs were expressed more than 2.0-fold and 1353 miRNAs were expressed less than 0.5-fold of the average value. In the Han population, 76 miRNAs were upregulated and 171 miRNAs were downregulated compared with the Uyghur population (p < 0.05). A total of 13 miRNAs had fold changes that were greater than 10, and 9 miRNAs had fold changes that were between 3 and 10. The upregulated miRNAs were miR-1, miR-106b-5p, miR-1915-5p, miR-200c-3p, miR-221-3p, miR-222-3p, miR-3139, miR-4802-3p, miR-507, miR-541-3p, miR-876-3p, and kshv-miR-K12-2-5p. The downregulated miRNAs were miR-1207-3p, miR-206, miR-2116-5p, miR-3667-5p, miR-374b-3p, miR-4423-5p, miR-4450, miR-4468, miR-542-3p, miR-548ao-3p, and miR-553. Specific miRNA expression patterns were observed in normal Uyghur and Han skin samples, and the miRNA expression patterns differed significantly between the two populations.

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miR-625-3p regulates oxaliplatin resistance by targeting MAP2K6-p38 signaling in human colorectal adenocarcinoma cells

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Gene expression analysis of THP-1 cells (monocytic cell line) transfected with microRNA mimics: let-7d-3p, let-7e-5p,miR-146a-5p,miR-130a-3p, miR-151a-3p.

Project description:In our previous study, hsa-let-7d-3p, hsa-let-7e-5p,hsa-miR-146a-5p,hsa-miR-130a-3p, hsa-miR-151a-3p,were significantly upregulated in the plasma of atopic patients. To study the each function of let-7d-3p, let-7e-5p,miR-146a-5p,miR-130a-3p, miR-151a-3p which are significantly upregulated in the plasma of atopic patients, we performed mimic-transfected THP-1 cells, a mononuclear cell line, and performed comprehensive genetic analysis.

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Project description:To identify differentially expressed genes by anti cancer treatments (microRNAs or siRNAs) in human cancer, several cell lines (bladder cancer, prostate cancer, renal cell carcinoma, oral squamous cell carcinoma and lung squamous cell carcinoma) were subjected to Agilent whole genome microarrays. Human cancer cell lines (SAS, HSC3, BOY, T24, PC3, PC3M, DU145, C4-2, 786-O, A-498 and EBC-1) were treated with miRNAs (miR-205, miR-29a, miR-144-3p, miR-144-5p, miR-451, miR-210, miR-145-5p, miR-145-3p, miR-23b cluster, miR-221, miR-222 and miR-223), siRNAs (si-GOLM1, si-HMGB3, si-CENPF, si-LOXL2, si-TMEM184B and si-CORO1C).

2016-04-13 | E-GEOD-66498 | biostudies-arrayexpress

Expression data from high-grade serous ovarian carcinomas (HGSC), clear cell ovarian carcinomas (CCC) and ovarian surface epithelium (OSE)

Project description:Background: The aim of this study was to identify differentially expressed miRNAs in high-grade serous ovarian carcinoma (HGSC), clear cell ovarian carcinoma (CCC) and ovarian surface epithelium (OSE). Selected miRNAs were evaluated for association with clinical parameters including survival, and miRNA/mRNA interactions were mapped. Results: Differentially expressed miRNAs between HGSC, CCC and OSE were identified, of which 18 were validated (p<0.01) using RT-qPCR in an extended cohort. Compared with OSE, miR-205-5p was the most overexpressed miRNA in HGSC. miR-200 family members and miR-182-5p were the most overexpressed in HGSC and CCC compared with OSE, whereas miR-383 was the most underexpressed. miR-509-3-5p, miR-509-5p, miR-509-3p and miR-510 were among the strongest differentiators between HGSC and CCC, all being significantly overexpressed in CCC compared with HGSC. High miR-200c-3p expression was associated with poor progression-free (p=0.031) and overall (p=0.026) survival in HGSC. Interacting miRNAs and mRNA targets, including those of a TP53-related pathway presented previously, were identified in HGSC. Conclusions: Several miRNAs are overexpressed in HGSC and CCC compared with OSE, including the miR-200 family, among which miR-200c-3p is associated with survival in HGSC. A set of miRNAs differentiates CCC from HGSC, of which miR-509-3-5p and miR-509-5p are the strongest classifiers. Several interactions between miRNAs and mRNAs in HGSC were mapped. Methods: Differences in miRNA expression between HGSC, CCC and OSE scrapings were analyzed by global miRNA expression profiling (Affymetrix GeneChip miRNA 2.0 Arrays, n=30), validated by RT-qPCR (n=63), and evaluated for associations with clinical parameters. For HGSC, differentially expressed miRNAs were linked to differentially expressed mRNAs identified previously (GSE36668).

2014-02-13 | E-GEOD-47841 | biostudies-arrayexpress

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