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Tumor Biology

, Volume 37, Issue 4, pp 5427–5435 | Cite as

Emerging prognostic markers related to mesenchymal characteristics of poorly differentiated breast cancers

  • Manuel Scimeca
  • Chiara Antonacci
  • Daniele Colombo
  • Rita Bonfiglio
  • Oreste Claudio Buonomo
  • Elena Bonanno
Original Article

Abstract

Despite the screening program, breast cancer is the commonest cause of cancer death in women in the industrialized world. In this study, we investigate the correlation among poorly differentiated carcinoma, epithelial to mesenchymal transition (EMT) phenomenon, and expression of NF-kB, Sonic Hedgehog (SHH), K-RAS, and PTX3 in breast cancer in 100 breast biopsies. Samples were classified as follows: 30 benign lesions (BL), 30 ductal infiltrating carcinomas low grade (MLG1), and 40 ductal infiltrating carcinomas high grade (MLG3). Expression of vimentin, CD44, β-catenin, NF-kB, SHH, K-RAS, CD44, and PTX3 was studied by immunohistochemistry. The different rate of cells with vimentin, nuclear β-catenin, and CD44 expression in MLG3 as compared with MLG1 and BL suggested that the process of de-differentiation of breast cancer cells could be related to the EMT. Our results showed a significant increase in NF-kB signal in MLG3 (2.33 ± 0.77) with respect to MLG1 (1.26 ± 0.55) and BL (0.86 ± 0.52). SHH expression appeared low in BL (1.00 ± 0.41) and homogenously widespread in MLG1 (1.23 ± 0.63) and MLG3 (1.56 ± 0.54). An important increase in K-RAS signal was observed in MLG3 compared to that in BL (2.20 ± 0.69 vs 0.82 ± 0.59). As regards PTX3, we observed a strong expression in MLG3 (2.00 ± 0.78) with respect to BL (0.58 ± 0.55) and MLG1 (1.53 ± 0.76). The recurring expression of NF-kB, SHH, K-RAS, and PTX3 in vimentin- and CD44-positive breast cancer cells allows to speculate that breast cells acquire the ability to express these molecules in concomitance to EMT phenomenon.

Keywords

Breast cancer markers Epithelial to mesenchymal transition NF-kB PTX3 K-RAS Sonic Hedgehog 

Notes

Acknowledgments

This work has been supported by FILAS Grant FILAS-SO-2011–1076. Authors thank UCS Diagnostic S.r.l. for technical support.

Compliance with ethical standards

Conflicts of interest

None

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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2015

Authors and Affiliations

  • Manuel Scimeca
    • 1
    • 2
  • Chiara Antonacci
    • 1
    • 2
  • Daniele Colombo
    • 1
  • Rita Bonfiglio
    • 1
  • Oreste Claudio Buonomo
    • 3
  • Elena Bonanno
    • 1
    • 2
  1. 1.Anatomic Pathology Section, Department of Biomedicine and PreventionUniversity of Rome “Tor Vergata”RomeItaly
  2. 2.TMALab s.r.l.Spin-off of University of Tor VergataRomeItaly
  3. 3.Department of Experimental Medicine and SurgeryUniversity “Tor Vergata”RomeItaly

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