PMID- 28060723 OWN - NLM STAT- MEDLINE DCOM- 20180226 LR - 20231112 IS - 1949-2553 (Electronic) IS - 1949-2553 (Linking) VI - 8 IP - 5 DP - 2017 Jan 31 TI - The effect of androgen receptor expression on clinical characterization of metastatic breast cancer. PG - 8693-8706 LID - 10.18632/oncotarget.14414 [doi] AB - In breast cancer (BC), androgen receptor (AR) expression is related to estrogen receptor (ER) and/or progesterone receptor (PgR) expression. AR expression is an indicator of good prognosis in breast cancer regardless of hormone receptor (HR) status. In this study, we evaluated the effect of AR-related gene expression on clinical characterization of metastatic BC. We performed RNA-Seq to evaluate gene expression using mRNA extracted from 37 patients with metastatic BC. Intrinsic subtype prediction, analysis of differential gene expression, and gene set enrichment pathway analysis were then performed. Metastatic BCs were categorized into three subgroups based on AR, ER, PgR, and HER2 expression. According to this subcategorization, 70 genes including AR, ER, and HER2 were differentially expressed among the three groups. In gene set enrichment pathway analysis, the low AR group was associated with the cell cycle pathway, whereas mammalian target of rapamycin (mTOR) pathways was prevalent in the high ER and AR group. In survival analysis, a higher level of AR expression correlated with prolonged overall survival in metastatic BC (high expression vs. low expression, median OS 53.1 vs. 27.2 months, p=.001). In conclusion, we propose that AR and AR-related gene expression could be utilized to predict the prognosis of metastatic BC and thus may be useful in treatment planning for refractory BC. FAU - Kim, Ji-Yeon AU - Kim JY AD - Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Seoul 06351, Korea. FAU - Park, Kyunghee AU - Park K AD - Samsung Genome Institute, Samsung Medical Center, Seoul 06351, Korea. FAU - Lee, Eunjin AU - Lee E AD - Samsung Genome Institute, Samsung Medical Center, Seoul 06351, Korea. FAU - Jung, Hae Hyun AU - Jung HH AD - Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University School of Medicine, Seoul 06351, Korea. FAU - Ahn, Jin Seok AU - Ahn JS AD - Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Seoul 06351, Korea. FAU - Im, Young-Hyuck AU - Im YH AD - Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Seoul 06351, Korea. AD - Biomedical Research Institute, Samsung Medical Center, Seoul 06351, Korea. FAU - Park, Woong-Yang AU - Park WY AD - Samsung Genome Institute, Samsung Medical Center, Seoul 06351, Korea. AD - Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Seoul 06351, Korea. FAU - Park, Yeon Hee AU - Park YH AD - Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Seoul 06351, Korea. AD - Biomedical Research Institute, Samsung Medical Center, Seoul 06351, Korea. AD - Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University School of Medicine, Seoul 06351, Korea. LA - eng PT - Journal Article PL - United States TA - Oncotarget JT - Oncotarget JID - 101532965 RN - 0 (AR protein, human) RN - 0 (Biomarkers, Tumor) RN - 0 (RNA, Messenger) RN - 0 (Receptors, Androgen) RN - 0 (Receptors, Estrogen) RN - 0 (Receptors, Progesterone) RN - EC 2.7.10.1 (ERBB2 protein, human) RN - EC 2.7.10.1 (Receptor, ErbB-2) SB - IM MH - Adult MH - Biomarkers, Tumor/analysis/*genetics MH - Breast Neoplasms/*genetics/mortality/pathology/therapy MH - Cell Movement/*genetics MH - Female MH - Gene Expression Profiling/methods MH - Gene Expression Regulation, Neoplastic MH - Genetic Predisposition to Disease MH - Humans MH - Immunohistochemistry MH - Kaplan-Meier Estimate MH - Middle Aged MH - Neoplasm Metastasis MH - Phenotype MH - Predictive Value of Tests MH - Prognosis MH - Prospective Studies MH - RNA, Messenger/*genetics MH - Receptor, ErbB-2/analysis MH - Receptors, Androgen/*genetics MH - Receptors, Estrogen/analysis MH - Receptors, Progesterone/analysis MH - Risk Factors MH - Sequence Analysis, RNA MH - Signal Transduction/genetics MH - Time Factors MH - Transcriptome PMC - PMC5352433 OTO - NOTNLM OT - RNA-Seq OT - androgen receptor (AR) OT - metastatic breast cancer OT - prognosis COIS- CONFLICTS OF INTEREST The authors have no potential conflicts of interest to declare. EDAT- 2017/01/07 06:00 MHDA- 2018/02/27 06:00 PMCR- 2017/01/31 CRDT- 2017/01/07 06:00 PHST- 2016/05/20 00:00 [received] PHST- 2016/12/05 00:00 [accepted] PHST- 2017/01/07 06:00 [pubmed] PHST- 2018/02/27 06:00 [medline] PHST- 2017/01/07 06:00 [entrez] PHST- 2017/01/31 00:00 [pmc-release] AID - 14414 [pii] AID - 10.18632/oncotarget.14414 [doi] PST - ppublish SO - Oncotarget. 2017 Jan 31;8(5):8693-8706. doi: 10.18632/oncotarget.14414.