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Differential miRNA and mRNA Expression in Immortalized Human Keratinocytes (HaCaT) after Low Arsenic Exposure (RNA-Seq)

ABSTRACT: Differential miRNA and mRNA Expression in Immortalized Human Keratinocytes (HaCaT) after Low Arsenic Exposure (RNA-Seq)

PROVIDER: PRJNA418922 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6302670_1.fastq.gz	Fastqsanger.gz
	SRR6302670_2.fastq.gz	Fastqsanger.gz
	SRR6302680_1.fastq.gz	Fastqsanger.gz
	SRR6302680_2.fastq.gz	Fastqsanger.gz
	SRR6302690_1.fastq.gz	Fastqsanger.gz

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Differential miRNA and mRNA Expression in Immortalized Human Keratinocytes (HaCaT) after Low Arsenic Exposure

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Differential miRNA and mRNA Expression in Immortalized Human Keratinocytes (HaCaT) after Low Arsenic Exposure [miRNA-seq]

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Aberrantly expressed genes in HaCaT keratinocytes chronically exposed to arsenic trioxide

Project description:The purpose of this study is to search for aberrant genes in HaCaT keratinocytes after chronic exposure to arsenic trioxide. The objective of the investigation was to discover the mechanism of arsenic carcinogenicity in human epidermal keratinocytes. We hypothesize that a combined strategy of DNA microarray, qRT-PCR and gene function annotation will identify aberrantly expressed genes in HaCaT keratinocyte cell line after chronic treatment with arsenic trioxide. HaCaT cells were chronically exposed to 0.5M-BM-5g/mL arsenic trioxide (As2O3) up to 22 passages and RNA was extracted. Microarray data analysis identified 14 up-regulated genes and 21 down-regulated genes in response to arsenic trioxide Two experimental groups: 1. The treatment group was sub-cultured up to passage 22 to establish a chronic exposure state. 2. The passage control group was also sub-cultured up to 22 passages but with no exposure to arsenic trioxide. 4 technical replicates with 3 replicates making a total of 8X3 =24 samples HaCat Cell untreated (passage control): 1. H1_H001, H1_H002, H1_H003 2. H2_ H004, H2_H005, H2_H006 3. H3_ H007, H3_H008, H3_H009 4. H4_ H010, H4_H011, H4_H012 HaCat Cell treated with 0.5M-BM-5g/ml of arsenic trioxide: 5. A1_H013, A1_H014, A1_H015 6. A2_H016, A2_H017, A2_H018 7. A3_H019, A3_H020, A3_H021 8. A4_H022, A4_H023, A4_H024 Cell Type: Human Skin Keratinocyte: 1.5 M-CM-^W105 HaCaT cells were cultured in 7.5 ml of complete DMEM containing 10% Fetal Bovine Serum (FBS) and 1% penicillin, streptomycin in T-25 culture plate. Cells were incubated in a humidified atmosphere with 5% CO2 at 37 M-BM-:C. The treatment groups were exposed to 0.5M-BM-5g/mL As2O3 (equivalent to LC 0.5), and passaged at 90% confluent. Total RNA was extracted from 4 technical replicates of unexposed HaCaT cells and HaCaT cells chronically exposed to arsenic trioxide up to passage 22 using RNA STAT-60 (TEL-TEST, INC, Friendswood, TX, USA).

2012-04-11 | E-GEOD-37192 | biostudies-arrayexpress

Protein dataset of immortalized HaCaT cells p53 knock down HaCaT keratinocytes

Project description:The p53 protein is encoded by TP53 gene and plays the key role in significant number of cellular processes including proliferation, apoptosis and regulation of many stress response pathways. P53 acts like a direct transcription activator of numerous genes regulating cell cycle arrest, DNA repair, growth inhibition and many others (Mollereau and Ma, 2014). The canonical biological function of p53 is maintaining genome integrity via elimination of damaged or exposed to genotoxic stress cells. Immortalized HaCaT cells are widely used for keratinocyte research, since they maintain stable keratinocyte phenotype, have nearly unlimited proliferative potential, do not require specific growth and differentiation factors (Colombo et al., 2017). Also, HaCaT cells produce typical differentiation markers such as cytokeratins K14 and K10, involucrin (Colombo et al., 2017) and respond to keratinocyte differentiation stimuli. Taking together, HaCaT cells have similar to normal human keratinocytes (NHK) properties, however, as many of spontaneously immortalized cell lines HaCaT cells bear two mutant p53 alleles - R282Q and H179Y (Lehman et al., 1993). Mutp53 in HaCaT has an increased affinity to other p53 family members (p63, p73), which significantly expands p53 properties. Moreover, mutp53 indirectly affects specific target genes via protein-protein interactions with other transcription factors (NF-Y, E2F1, NF-KB) or by tethering p63 to new promotor locations. For more detailed investigation of mutp53 impact on various processes in HaCaT cells we performed a shRNA mediated knockdown of mutp53. For generation of stable TP53 knockdown we employed plasmid vector pLKO-p53-shRNA-941 (Addgene # #25637) followed by puromycin selection of transduced cells. Here we present proteomic dataset obtained from wild type HaCaT cells and p53 knock down HaCaT keratinocytes.

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Differential miRNA and mRNA Expression in Immortalized Human Keratinocytes (HaCaT) after Low Arsenic Exposure (RNA-Seq)

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Human keratinocytes HaCaT LC-MSMS_SDS exposure

Project description:We employed human HaCaT cells as a model system to identify cellular proteins that accompany SDS-induced toxicity based on a proteomic approach. HaCaT human keratinocyte cell line were treated with a non-cytotoxic dose of SDS (25 µg/ml, as determined by the MTT assay and microscopically examination) for 48 h. The altered abundance of proteins from HaCaT keratinocytes exposed to SDS was analyzed by LC-MS/MS approach and quantified using Progenesis LC software. The abundance of 217 proteins (which were identified by multiple peptides, ≥ 2) was altered in keratinocytes exposed to SDS; in which 131 proteins had increased abundance while 86 proteins was down regulated. The Pathview map of 131 up-regulated proteins was built and enhancement of glycolysis/gluconeogenesis was found.

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