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- W4361819591 abstract "<div>Abstract<p><b>Purpose:</b> The identification of markers associated with progression to invasive breast cancer (IBC) is a major factor that can guide physicians in the initial therapeutic decision and the management of ductal carcinoma <i>in situ</i> (DCIS).</p><p><b>Experimental Design:</b> We examined autoantibody targets in 20 DCIS and 20 IBC patients using protein microarrays and identified humoral responses that can be used to distinguish the two groups. The five most differentially targeted antigens were selected to generate an autoantibody signature for the <i>in situ</i> to invasive breast cancer transition. This signature was next tested on 120 independent samples (61 DCIS and 59 IBC) using specific ELISA assays. The prognosis value of the autoantibody signature was finally evaluated in a cohort of DCIS patients followed for 5 years.</p><p><b>Results:</b> A set of five autoantibody targets (RBP-Jκ, HMGN1, PSRC1, CIRBP, and ECHDC1) with the highest differential signal intensity found in the protein microarrays experiment was used to establish an autoantibody signature of the DCIS to IBC transition. Using ELISA, this signature significantly discriminated DCIS from IBC [area under the ROC curve (AUC) = 0.794, 95% confidence interval (CI): 0.674–0.877]. Interestingly, our panel could highly distinguish low-grade DCIS from high-grade DCIS exhibiting an AUC of 0.749 (95% CI: 0.581–0.866). Finally, using a Kaplan–Meier analysis, the autoantibody signature could significantly divide the DCIS patients into a poor prognosis group and a good prognosis group (<i>P</i> = 0.01).</p><p><b>Conclusion:</b> These results indicate the potential of autoantibody detection as a new prognostic test with possible clinical implications for the management of DCIS. <i>Clin Cancer Res; 18(7); 1992–2000. ©2012 AACR</i>.</p></div>" @default.
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- W4361819591 date "2023-03-31" @default.
- W4361819591 modified "2023-09-27" @default.
- W4361819591 title "Data from Serum Autoantibody Signature of Ductal Carcinoma <i>In Situ</i> Progression to Invasive Breast Cancer" @default.
- W4361819591 doi "https://doi.org/10.1158/1078-0432.c.6519695" @default.
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