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DOI10.1155/2013/120305
Novel Hematopoietic Target Genes in the NRF2-Mediated Transcriptional Pathway
Campbell, Michelle R.1; Karaca, Mehmet1; Adamski, Kelly N.1; Chorley, Brian N.1,2; Wang, Xuting1; Bell, Douglas A.1,3
发表日期2013
ISSN1942-0900
英文摘要

Nuclear factor- (erythroid-derived 2) like 2 (NFE2L2, NRF2) is a key transcriptional activator of the antioxidant response pathway and is closely related to erythroid transcription factor NFE2. Under oxidative stress, NRF2 heterodimerizes with small Maf proteins and binds cis-acting enhancer sequences found near oxidative stress response genes. Using the dietary isothiocyanate sulforaphane (SFN) to activate NRF2, chromatin immunoprecipitation sequencing (ChIP-seq) identified several hundred novel NRF2-mediated targets beyond its role in oxidative stress. Activated NRF2 bound the antioxidant response element (ARE) in promoters of several known and novel target genes involved in iron homeostasis and heme metabolism, including known targets FTL and FTH1, as well as novel binding in the globin locus control region. Five novel NRF2 target genes were chosen for followup: AMBP, ABCB6, FECH, HRG-1 (SLC48A1), and TBXAS1. SFN-induced gene expression in erythroid K562 and lymphoid cells were compared for each target gene. NRF2 silencing showed reduced expression in lymphoid, lung, and hepatic cells. Furthermore, stable knockdown of NRF2 negative regulator KEAP1 in K562 cells resulted in increased NQO1, AMBP, and TBXAS1 expression. NFE2 binding sites in K562 cells revealed similar binding profiles as lymphoid NRF2 sites in all potential NRF2 candidates supporting a role for NRF2 in heme metabolism and erythropoiesis.


语种英语
WOS记录号WOS:000319931700001
来源期刊OXIDATIVE MEDICINE AND CELLULAR LONGEVITY
来源机构美国环保署
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/58342
作者单位1.NIEHS, Environm Genom Sect, Mol Genet Lab, NIH, Res Triangle Pk, NC 27709 USA;
2.US EPA, Res Triangle Pk, NC 27709 USA;
3.NIEHS, Res Triangle Pk, NC 27709 USA
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GB/T 7714
Campbell, Michelle R.,Karaca, Mehmet,Adamski, Kelly N.,et al. Novel Hematopoietic Target Genes in the NRF2-Mediated Transcriptional Pathway[J]. 美国环保署,2013.
APA Campbell, Michelle R.,Karaca, Mehmet,Adamski, Kelly N.,Chorley, Brian N.,Wang, Xuting,&Bell, Douglas A..(2013).Novel Hematopoietic Target Genes in the NRF2-Mediated Transcriptional Pathway.OXIDATIVE MEDICINE AND CELLULAR LONGEVITY.
MLA Campbell, Michelle R.,et al."Novel Hematopoietic Target Genes in the NRF2-Mediated Transcriptional Pathway".OXIDATIVE MEDICINE AND CELLULAR LONGEVITY (2013).
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