TY - JOUR
T1 - Metabolic differences in estrogen receptor-negative breast cancer based on androgen receptor status
AU - Noh, Songmi
AU - Kim, Ji Ye
AU - Koo, Ja Seung
N1 - Publisher Copyright:
© 2014, International Society of Oncology and BioMarkers (ISOBM).
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2014/8
Y1 - 2014/8
N2 - This study investigated the relationship between steroid hormone receptor signaling and cellular metabolism in tumorigenesis by examining the expression of metabolic proteins with respect to androgen receptor (AR) and human epidermal growth factor receptor-2 (HER-2) status in estrogen receptor-negative (ER−) breast cancer. ER− breast cancer cases (n = 334) were selected from a microarray analysis, including those that were AR+ and AR− (n = 127 and 207, respectively) and HER-2+ and HER-2− (n = 140 and 194, respectively). The expression of proteins involved in glycolysis, glutaminolysis, and mitochondrial and intermediary (i.e., serine/glycine) metabolism was determined by immunohistochemistry and correlated with AR and HER-2 status. The expression of several proteins involved in glycolysis, glutaminolysis, and serine/glycine metabolism was higher (p < 0.01) in the AR− than in the AR+ group. In the former, the expression of the glycolytic protein carbonic anhydrase (CA)IX was associated with a shorter disease-free survival period (p = 0.029) and overall survival rate (p = 0.001). In a multivariate Cox analysis, immunoreactivity for CAIX (hazard ratio 15.89, 95 % confidence interval (CI) 1.820–131.6; p = 0.010) was an independent factor in predicting the survival of the AR+ group. In conclusion, differential expression patterns of metabolism-related proteins were noted in ER− breast cancer according to AR status. These findings highlight the link between hormone receptor signaling and metabolic pathways whose dysregulation could underlie breast tumorigenesis.
AB - This study investigated the relationship between steroid hormone receptor signaling and cellular metabolism in tumorigenesis by examining the expression of metabolic proteins with respect to androgen receptor (AR) and human epidermal growth factor receptor-2 (HER-2) status in estrogen receptor-negative (ER−) breast cancer. ER− breast cancer cases (n = 334) were selected from a microarray analysis, including those that were AR+ and AR− (n = 127 and 207, respectively) and HER-2+ and HER-2− (n = 140 and 194, respectively). The expression of proteins involved in glycolysis, glutaminolysis, and mitochondrial and intermediary (i.e., serine/glycine) metabolism was determined by immunohistochemistry and correlated with AR and HER-2 status. The expression of several proteins involved in glycolysis, glutaminolysis, and serine/glycine metabolism was higher (p < 0.01) in the AR− than in the AR+ group. In the former, the expression of the glycolytic protein carbonic anhydrase (CA)IX was associated with a shorter disease-free survival period (p = 0.029) and overall survival rate (p = 0.001). In a multivariate Cox analysis, immunoreactivity for CAIX (hazard ratio 15.89, 95 % confidence interval (CI) 1.820–131.6; p = 0.010) was an independent factor in predicting the survival of the AR+ group. In conclusion, differential expression patterns of metabolism-related proteins were noted in ER− breast cancer according to AR status. These findings highlight the link between hormone receptor signaling and metabolic pathways whose dysregulation could underlie breast tumorigenesis.
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U2 - 10.1007/s13277-014-2103-x
DO - 10.1007/s13277-014-2103-x
M3 - Article
C2 - 24850180
AN - SCOPUS:84922395118
VL - 35
SP - 8179
EP - 8192
JO - Oncodevelopmental Biology and Medicine
JF - Oncodevelopmental Biology and Medicine
SN - 1010-4283
IS - 8
ER -