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Fig. 2 | Breast Cancer Research

Fig. 2

From: NR2F1 stratifies dormant disseminated tumor cells in breast cancer patients

Fig. 2

Images of disseminated tumor cells (DTCs) stained by double immunofluorescence (AE1AE3/NR2F1 and AE1AE3/Ki67) and correlation between Ki67 and NR2F1 expression. a DTCs from the BM of study patients analyzed by DIF. The strong and irregular cytoplasmic cytokeratin staining (AE1AE3 antibody, in red fluorescence) identifies these cells as DTCs among the normal BM MNCs (AE1AE3-negative). The two upper rows show NR2F1high DTCs with the presence of nuclear NR2F1 signal clusters (in green fluorescence; first row) or one large size NR2F1 signal (i.e., larger than the size range observed in normal BM MNCs; second row). Third row shows two DTCs classified as NR2F1low containing only two (lower cell) or three (upper cell) small NR2F1 signals, i.e., expression not exceeding what may be observed in normal BM MNCs. The bottom row shows two DTCs positive for Ki67 (in green). b Comparison of the expression on DTC of NR2F1 versus the proliferation marker Ki67. Results from DIF analysis of Ki67/AE1AE3 versus NR2F1/AE1AE3, respectively, on 15 of the BM samples presented in Table 1, where additional cytospins were available for both analyses

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