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- W2792877006 abstract "Background: Obesity is a challenging health concern in breast cancer. Not only are obese women at higher risk of breast cancer, but if diagnosed with the disease, obesity is also impairing the prognosis of a breast cancer. Understanding the underlying biology behind these associations are key to improve survival rates in breast cancer. In obesity, the more abundant, activated adipose tissue may lead to insulin resistance and secretion of soluble mediators that may contribute to impaired breast cancer outcomes observed among obese women. The adipokine resistin is implied to be an important link between obesity and insulin resistance, and to be elevated among breast cancer patients. Yet, the expression of the newly identified resistin receptor CAP1 and its impact on breast cancer prognosis is poorly understood. Purpose: To evaluate the impact by the adipokine receptor CAP1 tumor expression on breast cancer outcomes. Experimental Design: CAP1 mRNA expression was explored among 1,881 primary breast tumors. Associations between CAP1 expression, categorized into tertiles, and survival outcomes were estimated using the Kaplan-Meier method and log-rank test, and by multivariable Cox regression models providing adjusted hazard ratios (HR adj ) with 95% confidence intervals (CI). Independent biological network interaction analyzes were conducted in a subset of 1,105 invasive breast carcinomas within The Cancer Genome Atlas (TCGA) project. Results: CAP1 was linked to poor tumor characteristics with higher CAP1 expression found among estrogen receptor (ER)-negative tumors, relative to ER-positive tumors, as well as with increasing tumor grade ( P =0.025). High CAP1 tumor expression was further associated with shorter overall survival (HR adj 1.54; 95% CI, 1.11-2.13) and relapse-free survival (HR adj 1.47; 95% CI, 1.10-1.96), compared with low or intermediate CAP1 expression, particularly among ER-positive tumors or lymph node positive tumors. Additionally, CAP1 was identified in complex with genes involved in growth promoting and cell motility processes. Conclusion: These results highlight the potential role of the resistin receptor CAP1 regarding breast cancer outcomes. Further investigations are needed to elucidate the biological and clinical implication of the resistin-CAP1 link in obesity-associated breast cancer. Citation Format: Rosendahl AH, Bergqvist M, Kimbung S, Borgquist S. Adipokine receptor CAP1 expression as predictor of survival outcome among breast cancer patients [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P1-07-35." @default.
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- W2792877006 date "2018-02-14" @default.
- W2792877006 modified "2023-09-27" @default.
- W2792877006 title "Abstract P1-07-35: Adipokine receptor CAP1 expression as predictor of survival outcome among breast cancer patients" @default.
- W2792877006 doi "https://doi.org/10.1158/1538-7445.sabcs17-p1-07-35" @default.
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