Characterisation of male breast cancer: a descriptive biomarker study from a large patient series

Matthew P Humphries, Sreekumar Sundara Rajan, Hedieh Honarpisheh, Gabor Cserni, Jo Dent, Laura Fulford, Lee B Jordan, J Louise Jones, Rani Kanthan, Maria Litwiniuk, Anna Di Benedetto, Marcella Mottolese, Elena Provenzano, Sami Shousha, Mark Stephens, Janina Kulka, Ian O Ellis, Akinwale N Titloye, Andrew M Hanby, Abeer M ShaabanValerie Speirs

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)
8 Downloads (Pure)

Abstract

Male breast cancer (MBC) is rare. We assembled 446 MBCs on tissue microarrays and assessed clinicopathological information, together with data from 15 published studies, totalling 1984 cases. By immunohistochemistry we investigated 14 biomarkers (ERα, ERβ1, ERβ2, ERβ5, PR, AR, Bcl-2, HER2, p53, E-cadherin, Ki67, survivin, prolactin, FOXA1) for survival impact. The main histological subtype in our cohort and combined analyses was ductal (81%, 83%), grade 2; (40%, 44%), respectively. Cases were predominantly ERα (84%, 82%) and PR positive (74%, 71%), respectively, with HER2 expression being infrequent (2%, 10%), respectively. In our cohort, advanced age (>67) was the strongest predictor of overall (OS) and disease free survival (DFS) (p = 0.00001; p = 0.01, respectively). Node positivity negatively impacted DFS (p = 0.04). FOXA1 p = 0.005) and AR p = 0.009) were both positively prognostic for DFS, remaining upon multivariate analysis. Network analysis showed ERα, AR and FOXA1 significantly correlated. In summary, the principle phenotype of MBC was luminal A, ductal, grade 2. In ERα+ MBC, only AR had prognostic significance, suggesting AR blockade could be employed therapeutically.

Original languageEnglish
Article number45293
JournalScientific Reports
Volume7
DOIs
Publication statusPublished - 28 Mar 2017
Externally publishedYes

Bibliographical note

This study was funded by Yorkshire Cancer Research (grant L378). Breast Cancer Now (formerly Breast Cancer Campaign, grant 2007 MayPR02) provided funding for the accrual and construction of TMAs. Thanks to Prof Rosemary Walker and Dr Margaret Jefferies for kindly donating tissue samples.

Keywords

  • Journal Article

Fingerprint

Dive into the research topics of 'Characterisation of male breast cancer: a descriptive biomarker study from a large patient series'. Together they form a unique fingerprint.

Cite this