TY - JOUR
T1 - Characterisation of male breast cancer
T2 - a descriptive biomarker study from a large patient series
AU - Humphries, Matthew P.
AU - Sundara Rajan, Sreekumar
AU - Honarpisheh, Hedieh
AU - Cserni, Gabor
AU - Dent, Jo
AU - Fulford, Laura
AU - Jordan, Lee B.
AU - Jones, J. Louise
AU - Kanthan, Rani
AU - Litwiniuk, Maria
AU - Di Benedetto, Anna
AU - Mottolese, Marcella
AU - Provenzano, Elena
AU - Shousha, Sami
AU - Stephens, Mark
AU - Kulka, Janina
AU - Ellis, Ian O.
AU - Titloye, Akinwale N
AU - Hanby, Andrew M.
AU - Shaaban, Abeer M.
AU - Speirs, Valerie
N1 - 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
PY - 2017/3/28
Y1 - 2017/3/28
N2 - 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.
AB - 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.
KW - Journal article
KW - Breast cancer
KW - Tumour biomarkers
U2 - 10.1038/srep45293
DO - 10.1038/srep45293
M3 - Article
C2 - 28350011
SN - 2045-2322
VL - 7
SP - 1
EP - 9
JO - Scientific Reports
JF - Scientific Reports
M1 - 45293
ER -