American Association for Cancer Research
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Supplementary Table S1 from Breast Cancer Cell–Derived GM-CSF Licenses Regulatory Th2 Induction by Plasmacytoid Predendritic Cells in Aggressive Disease Subtypes

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posted on 2023-03-30, 23:11 authored by Cristina Ghirelli, Fabien Reyal, Marine Jeanmougin, Raphaël Zollinger, Philémon Sirven, Paula Michea, Christophe Caux, Nathalie Bendriss-Vermare, Marie-Hélène Donnadieu, Martial Caly, Virginie Fourchotte, Anne Vincent-Salomon, Brigitte Sigal-Zafrani, Xavier Sastre-Garau, Vassili Soumelis

Supplementary Table S1. Cytokine production by tumor cell lines derived from different organs.

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ARTICLE ABSTRACT

Reciprocal interactions between tumor cells and their microenvironment vitally impact tumor progression. In this study, we show that GM-CSF produced by primary breast tumor cells induced the activation of plasmacytoid predendritic cells (pDC), a cell type critical to anti-viral immunity. pDC that expressed the GM-CSF receptor were increased in breast tumors compared with noninvolved adjacent breast tissue. Tumor-activated pDC acquired naïve CD4+ T-cell stimulatory capacity and promoted a regulatory Th2 response. Finally, the concomitant increase of GM-CSF and pDC was significantly associated with relatively more aggressive breast cancer subtypes. Our results characterize the first tumor-derived factor that can activate pDC to promote a regulatory Th2 response, with implications for therapeutic targeting of a tumor-immune axis of growing recognition in its significance to cancer. Cancer Res; 75(14); 2775–87. ©2015 AACR.

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