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UVB drives transcriptomic and epigenetic reprogramming which can be protected by antioxidant sulforaphane in human skin keratinocytes

ABSTRACT: UVB drives transcriptomic and epigenetic reprogramming which can be protected by antioxidant sulforaphane in human skin keratinocytes

PROVIDER: PRJNA768669 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR16203162_1.fastq.gz	Fastqsanger.gz
	SRR16203162_2.fastq.gz	Fastqsanger.gz
	SRR16203163_1.fastq.gz	Fastqsanger.gz
	SRR16203163_2.fastq.gz	Fastqsanger.gz
	SRR16203164_1.fastq.gz	Fastqsanger.gz

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Project description:Dr. Liu's research group is interested in studying the expression and functions of galectin-3, -7 and -12, in particular the roles of these proteins in inflammation and neoplasm. Members of the galectin family are known to participate in cellular homeostasis by modulating cell growth, controlling cell cycle progression, and inducing or inhibiting apoptosis. It is known that some galectins have similar functions. However, it is not fully understood whether they work cooperatively or not. As the outermost barrier of the body, skin is directly and frequently exposed to a prooxidative environment, including solar ultraviolet A (UVA), ultraviolet B (UVB) radiation, and air pollution. Several reports have shown that exposure of cells to UV increase or decrease the levels of galectins. For example, the amounts of galectin-7 mRNA and protein are increased rapidly after UVB irradiation of keratinocytes (Proc. Natl. Acad. Sci. USA 1999; 96:11329-34). Heat shock and subculturing decrease, while alkylating agents and UV-light increase galectin-3 (Cell Physiol Biochem 2000; 10:149-58). To analyze the change of all galectin gene expression profiles after UVB irradiation and to determine the presence or absence of coordinate regulation, we analyzed the gene expression profiles of keratinocytes exposed to UVB. Normal human epidermal keratinocytes (NHEK) were irradiated with 200 J/m2 of UVB. Total RNA will be extracted at 0, 6, 12 and 24 h after irradiation (duplicate) for analysis on the Glyco gene chip. Several reports have shown that exposure to UV light can regulate levels of galectin in skin. This study seeks to analyze the changes in all galectin gene expression profiles post-UVB irradiation to determine the presence or absence of coordinate regulation. In this study, normal human keratinocytes were irradiated with 200J/m2 of UVB. Total RNA was extracted at 0, 6, 12, and 24-hour post irradiation time points, in duplicate. Samples were hybridized and analyzed using the GLYCOv2 array.

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UVB drives transcriptomic and epigenetic reprogramming which can be protected by antioxidant sulforaphane in human skin keratinocytes

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