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• W2066217969 startingPage "916" @default.
• W2066217969 abstract "SP100 was first identified as a nuclear autoimmune antigen and is a constituent of the nuclear body. SP100 interacts with the ETS1 transcription factor, and we have previously shown that SP100 reduces ETS1-DNA binding and inhibits ETS1 transcriptional activity on the MMP1 and uPA promoters. We now demonstrate that SP100 expression is upregulated by interferons, which have been shown to be antiangiogenic, in primary endothelial cells. As ETS1 is functionally important in promoting angiogenesis, we tested the hypothesis that ETS1 activity is negatively modulated by SP100 in endothelial cells. SP100 directly antagonizes ETS1-mediated morphological changes in human umbilical vein endothelial cell (HUVEC) network formation and reduces HUVEC migration and invasion. To further understand the functional relationship between ETS1 and SP100, cDNA microarray analysis was utilized to assess reprogramming of gene expression by ETS1 and SP100. A subset of the differentially regulated genes, including heat-shock proteins (HSPs) H11, HSPA1L, HSPA6, HSPA8, HSPE1 and AXIN1, BRCA1, CD14, CTGF (connective tissue growth factor), GABRE (gamma-aminobutyric acid A receptor epsilon), ICAM1, SNAI1, SRD5A1 (steroid-5-alpha-reductase 1) and THY1, were validated by real-time PCR and a majority showed reciprocal expression in response to ETS1 and SP100. Interestingly, genes that are negatively regulated by ETS1 and upregulated by SP100 have antimigratory or antiangiogenic properties. Collectively, these data indicate that SP100 negatively modulates ETS1-dependent downstream biological processes." @default.
• W2066217969 created "2016-06-24" @default.
• W2066217969 creator A5000527734 @default.
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• W2066217969 creator A5056516079 @default.
• W2066217969 creator A5068474532 @default.
• W2066217969 date "2004-12-13" @default.
• W2066217969 modified "2023-10-18" @default.
• W2066217969 title "SP100 inhibits ETS1 activity in primary endothelial cells" @default.
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• W2066217969 doi "https://doi.org/10.1038/sj.onc.1208245" @default.
• W2066217969 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15592518" @default.
• W2066217969 hasPublicationYear "2004" @default.
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