Increased centrosome number in BRCA-related breast cancer specimens determined by immunofluorescence analysis

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Abstract

BRCA-related breast carcinoma can be prevented through prophylactic surgery and an intensive follow-up regimen. However, BRCA genetic tests cannot be routinely performed, and some BRCA mutations could not be defined as deleterious mutations or normal variants. Therefore, an easy functional assay of BRCA will be useful to evaluate BRCA status. As it has been reported that BRCA functions in the regulation of centrosome number, we focused on centrosome number in cancer tissues. Here, 70 breast cancer specimens with known BRCA status were analyzed using immunofluorescence of γ-tubulin (a marker of centrosome) foci. The number of foci per cell was higher in cases with BRCA mutation compared to wild-type cases, that is, 1.9 (95% confidence interval [CI], 1.5-2.3) vs 0.5 (95% CI, 0.2-0.8) (P

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Watanabe, G., Chiba, N., Nomizu, T., Furuta, A., Sato, K., Miyashita, M., … Ishida, T. (2018). Increased centrosome number in BRCA-related breast cancer specimens determined by immunofluorescence analysis. Cancer Science, 109(6), 2027–2035. https://doi.org/10.1111/cas.13595

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