News Column

Investigators at Wuhan University Report New Data on Breast Cancer

May 15, 2014

By a News Reporter-Staff News Editor at Women's Health Weekly -- Research findings on Oncology are discussed in a new report. According to news reporting out of Wuhan, People's Republic of China, by NewsRx editors, research stated, "Hormone receptors, including the estrogen receptor and progesterone receptor, human epidermal growth factor receptor 2 (HER2), and other biomarkers like Ki67, epidermal growth factor receptor (EGFR, also known as HER1), the androgen receptor, and p53, are key molecules in breast cancer. This study evaluated the relationship between HER2 and hormone receptors and explored the additional prognostic value of Ki67, EGFR, the androgen receptor, and p53."

Our news journalists obtained a quote from the research from Wuhan University, "Quantitative determination of HER2 and EGFR was performed in 240 invasive breast cancer tissue microarray specimens using quantum dot (QD)-based nanotechnology. We identified two subtypes of HER2, ie, high total HER2 load (HTH2) and low total HER2 load (LTH2), and three subtypes of hormone receptor, ie, high hormone receptor (HHR), low hormone receptor (LHR), and no hormone receptor (NHR). Therefore, breast cancer patients could be divided into five subtypes according to HER2 and hormone receptor status. Ki67, p53, and the androgen receptor were determined by traditional immunohistochemistry techniques. The relationship between hormone receptors and HER2 was investigated and the additional value of Ki67, EGFR, the androgen receptor, and p53 for prediction of 5-year disease-free survival was assessed. In all patients, quantitative determination showed a statistically significant (p 0.05) between the five subtypes. EGFR and Ki67 had prognostic significance for 5-year disease-free survival in univariate analysis, but the androgen receptor and p53 did not. Multivariate analysis identified that EGFR expression had predictive significance for 5-year disease-free survival in hormone-receptor positive patients and in those with the lymph node-positive breast cancer subtype. Hormone receptor expression was indeed one of the molecular profiles in the subtypes identified by quantitative HER2 and vice versa."

According to the news editors, the research concluded: "EGFR status may provide discriminative prognostic information in addition to HER2 and hormone receptor status, and should be integrated into routine practice to help formulate more specific prediction of the prognosis and appropriate individualized treatment."

For more information on this research see: Subtype classification for prediction of prognosis of breast cancer from a biomarker panel: correlations and indications. International Journal of Nanomedicine, 2014;9():1039-48 (see also Oncology).

Our news journalists report that additional information may be obtained by contacting C. Chen, Dept. of Breast and Thyroid Surgery, Wuhan University, Renmin Hospital, Wuhan, People's Republic of China. Additional authors for this research include J.P. Yuan, W. Wei, Y. Tu, F. Yao, X.Q. Yang, J.Z. Sun, S.R. Sun and Y. Li.

Keywords for this news article include: Asia, Wuhan, Oncology, Breast Cancer, Women's Health, Protein Kinases, Membrane Proteins, Steroid Receptors, Androgen Receptors, Estrogen Receptors, Phosphotransferases, DNA Binding Proteins, Transcription Factors, Corpus Luteum Hormones, Progesterone Receptors, People's Republic of China, Epidermal Growth Factor Receptor.

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Source: Women's Health Weekly