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Correlation between erythropoietin receptor(s) and estrogen and progesterone receptor expression in different breast cancer cell linesTrošt, Nina, 1984- ...Erythropoietin (EPO) receptor (EPOR) expression in breast cancer has been shown to correlate with the expression of estrogen receptor (ESR) and progesterone receptor (PGR) and to be associated with ... the response to tamoxifen in ESR+/PGR+ tumors but not in ESR- tumors. In addition, the correlation between EPOR and G protein-coupled estrogen receptor 1 [GPER; also known as G protein-coupled receptor 30 (GPR30)] has been reported, suggesting the prognostic potential of EPOR expression. Moreover, the involvement of colony stimulating factor 2 receptor, ?, low-affinity (CSF2RB) and ephrin type-B receptor 4 (EPHB4) as EPOR potential receptor partners in cancer has been indicated. This study analyzed the correlation between the expression of genes for EPO, EPOR, CSF2RB, EPHB4, ESR, PGR and GPER in the MCF-7, MDA-MB-361, T-47D, MDA-MB-231, Hs578Bst, SKBR3, MCF-10A and Hs578T cell lines. The cell lines were also treated with recombinant human EPO (rHuEPO) in order to determine its ability to activate the Jak/STAT5, MAPK and PI3K signaling pathways and modify cell growth characteristics. Expression analysis stratified the cell lines in 2 main clusters, hormone-dependent cell lines expressing ESR and PGR and a hormone-independent cluster. A significant correlation was observed between the expression levels of ESR and PGR and their expression was also associated with that of GPER. Furthermore, the expression of GPER was associated with that of EPOR, suggesting the connection between this orphan G protein and EPO signaling. A negative correlation between EPOR and CSF2RB expression was observed, questioning the involvement of these two receptors in the hetero-receptor formation. rHuEPO treatment only influenced the hormone-independent cell lines, since only the MDA-MB-231, SKBR3 and Hs578T cells responded to the treatment. (Abstract truncated at 2000 characters)Source: International Journal of Molecular Medicine. - ISSN 1107-3756 (Vol. 31, no. 3, 2013, str. 717-725)Type of material - article, component partPublish date - 2013Language - englishCOBISS.SI-ID - 30391001
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source: International Journal of Molecular Medicine. - ISSN 1107-3756 (Vol. 31, no. 3, 2013, str. 717-725)
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Trošt, Nina, 1984- | 30720 |
Hevir-Kene, Neli | 29240 |
Lanišnik-Rižner, Tea | 11699 |
Debeljak, Nataša | 18622 |
Source: Personal bibliographies
and: SICRIS
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