Notch-1 and Notch-4 Receptors as Prognostic Markers in Breast Cancer

Notch-1 and Notch-4 Receptors as Prognostic Markers in Breast Cancer INTERNATIONAL JOURNAL OF SURGICAL PATHOLOGY Yao, K., Rizzo, P., Rajan, P., Albain, K., Rychlik, K., Shah, S., Miele, L. 2011; 19 (5): 607-613

Abstract

Studies looking at immunohistochemical (IHC) staining of Notch receptors in breast cancer and correlation with known prognostic factors are sparse.IHC staining for nuclear, cytoplasmic, and membrane Notch-1 (N1), Notch-4 (N4), and Jagged-1 (JAG1) was performed and correlated with known prognostic factors.Of 48 breast cancers, 36 (67%) were invasive, mean age was 50 years (range 43-86 years), 37 (77%) were estrogen receptor (ERa) positive, and 13 (27%) node positive. There was significantly more marked N1 membranous staining in ERa-positive tumors (P < .05). On univariate analysis, cytoplasmic N1 was significantly correlated with node status and tumor grade (P < .05); both cytoplasmic and membranous N4 significantly correlated with Ki67 (P < .05); and membranous JAG1 significantly correlated with Ki67 (P < .05). On multivariate analysis, only cytoplasmic N1 significantly correlated with node status.IHC of Notch markers is feasible and correlates with known prognostic factors consistent with a biological role of Notch signaling in breast cancer progression.

View details for DOI 10.1177/1066896910362080

View details for Web of Science ID 000297077900008

View details for PubMedID 20444726