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  • Title: Does thymidine phosphorylase correlate with angiogenesis in intraductal carcinoma of the breast?
    Author: Erkus M, Meteoglu I, Culhaci N, Meydan N, Erdogdu I.
    Journal: Saudi Med J; 2006 Sep; 27(9):1329-33. PubMed ID: 16951768.
    Abstract:
    OBJECTIVE: To determine the association between thymidine phosphorylase (TP) and angiogenesis, and other conventional prognostic markers. We also evaluated interobserver and intraobserver reliability for TP expression in ductal carcinoma, to achieve a more consistent results. METHODS: Our study included all cases diagnosed in Adnan Menderes University Medical Faculty Hospital, Aydin, Turkey as invasive ductal carcinoma or ductal carcinoma in situ (DCIS) with proven component of (>30%), between January 2003 and February 2005. The total number of the cases was 27 and their median age was 50 years. All sections were stained using monoclonal antibody-TP and examined at x40 magnification. Either nuclear or cytoplasmic staining was accepted as positive. The histoscore (H-score) was calculated for each specimen. The tumor stromal vascularity was assessed by monoclonal anti-CD34; and areas of intense vascularization were determined. Conventional immunohistochemical markers such as c-erb B2, Ki-67, estrogen and progesterone receptors and p53 were also applied to all slides. Three pathologists blindly examined each slide under 10 high-power fields (10 HPF) for 2 times in a 2 months period. RESULTS: There was no significant association between stromal vascularity and TP staining of cancer cells (p=0.1) and no correlation was determined between H-scores for TP staining in ductal carcinoma and DCIS components (p=0.5). CONCLUSION: There was no significant correlation noted between stromal and periductal vascularity with the anti-CD34 antibody was used. No significant correlation was identified between the TP H-score and stromal or periductal vascularity.
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