Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 8179-8192 |
| Number of pages | 14 |
| Journal | Tumor Biology |
| Volume | 35 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Cancer Research
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Metabolic differences in estrogen receptor-negative breast cancer based on androgen receptor status. / Noh, Songmi; Kim, Ji Ye; Koo, JaSeung.
In: Tumor Biology, Vol. 35, No. 8, 01.01.2014, p. 8179-8192.Research output: Contribution to journal › Article
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, JaSeung
PY - 2014/1/1
Y1 - 2014/1/1
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.
UR - http://www.scopus.com/inward/record.url?scp=84922395118&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84922395118&partnerID=8YFLogxK
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 - Tumor Biology
JF - Tumor Biology
SN - 1010-4283
IS - 8
ER -