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The pathological complete response and secreted protein acidic and rich in cysteine expression in patients with breast cancer receiving neoadjuvant nab‑paclitaxel chemotherapy

  • Authors:
    • Yuko Nakazawa
    • Seshiru Nakazawa
    • Sasagu Kurozumi
    • Misato Ogino
    • Yukio Koibuchi
    • Hiroki Odawara
    • Tetsunari Oyama
    • Jun Horiguchi
    • Takaaki Fujii
    • Ken Shirabe
  • View Affiliations / Copyright

    Affiliations: Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371‑8511, Japan, Department of Breast and Endocrine Surgery, National Hospital Organization Takasaki General Medical Center, Takasaki, Gunma 370‑0829, Japan, Department of Surgery, Toho Hospital, Midori, Gunma 376‑0121, Japan, Department of Diagnostic Pathology, Gunma University Graduate School of Medicine, Maebashi, Gunma 371‑8511, Japan, Department of Breast Surgery, International University of Health and Welfare, Chiba 286‑8686, Japan
    Copyright: © Nakazawa et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 2705-2712
    |
    Published online on: January 27, 2020
       https://doi.org/10.3892/ol.2020.11354
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Abstract

Biomarkers that can accurately predict treatment response are required for indicating optimal neoadjuvant treatments. The current study assessed the predictive value of secreted protein acidic and rich in cysteine (SPARC) mRNA expression for the response to neoadjuvant nab‑paclitaxel (nab‑PTX) therapy in patients with breast cancer. It was hypothesized that SPARC expression can affect the response to albumin‑bound taxanes, including nab‑PTX since SPARC binds albumin with a high affinity. Pre‑therapeutic specimens of core needle biopsies were analyzed from 50 patients in a phase II trial of neoadjuvant nab‑PTX and the factors that were associated with a pathological complete response (pCR) were assessed. The pre‑therapeutic tumor mRNA levels of chemotherapy‑related proteins were quantified, including SPARC, and the correlations with post‑therapeutic clinicopathological factors were assessed, including with pCR. The results demonstrated that pre‑therapeutic SPARC mRNA expression was significantly higher in non‑pCR patients compared with patients with pCR (92.37±55.33 vs. 56.53±30.19; P=0.027). A cutoff point of 48.5 was determined using receiver operating characteristic (ROC) curve analysis (sensitivity, 83.3%; specificity, 50.0%), and patients were classified into low and high SPARC expression groups. High SPARC expression was associated with histological grade (P=0.035), estrogen receptor expression (P=0.037), and progesterone receptor expression (P=0.002) but not with HER2 (P=0.895), and Ki‑67 LI (P=0.743) expression. The results of the current study indicated that a high SPARC mRNA expression was a negative predictor of pCR following neoadjuvant nab‑PTX therapy regardless of breast cancer subtype. The phase II study was conducted in accordance with the Declaration of Helsinki, and the protocol was approved by the Ethics Committee of the National Hospital Organization Takasaki General Medical Center (Registration nos. H23‑9 and H23‑33).
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Spandidos Publications style
Nakazawa Y, Nakazawa S, Kurozumi S, Ogino M, Koibuchi Y, Odawara H, Oyama T, Horiguchi J, Fujii T, Shirabe K, Shirabe K, et al: The pathological complete response and secreted protein acidic and rich in cysteine expression in patients with breast cancer receiving neoadjuvant nab‑paclitaxel chemotherapy. Oncol Lett 19: 2705-2712, 2020.
APA
Nakazawa, Y., Nakazawa, S., Kurozumi, S., Ogino, M., Koibuchi, Y., Odawara, H. ... Shirabe, K. (2020). The pathological complete response and secreted protein acidic and rich in cysteine expression in patients with breast cancer receiving neoadjuvant nab‑paclitaxel chemotherapy. Oncology Letters, 19, 2705-2712. https://doi.org/10.3892/ol.2020.11354
MLA
Nakazawa, Y., Nakazawa, S., Kurozumi, S., Ogino, M., Koibuchi, Y., Odawara, H., Oyama, T., Horiguchi, J., Fujii, T., Shirabe, K."The pathological complete response and secreted protein acidic and rich in cysteine expression in patients with breast cancer receiving neoadjuvant nab‑paclitaxel chemotherapy". Oncology Letters 19.4 (2020): 2705-2712.
Chicago
Nakazawa, Y., Nakazawa, S., Kurozumi, S., Ogino, M., Koibuchi, Y., Odawara, H., Oyama, T., Horiguchi, J., Fujii, T., Shirabe, K."The pathological complete response and secreted protein acidic and rich in cysteine expression in patients with breast cancer receiving neoadjuvant nab‑paclitaxel chemotherapy". Oncology Letters 19, no. 4 (2020): 2705-2712. https://doi.org/10.3892/ol.2020.11354
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Spandidos Publications style
Nakazawa Y, Nakazawa S, Kurozumi S, Ogino M, Koibuchi Y, Odawara H, Oyama T, Horiguchi J, Fujii T, Shirabe K, Shirabe K, et al: The pathological complete response and secreted protein acidic and rich in cysteine expression in patients with breast cancer receiving neoadjuvant nab‑paclitaxel chemotherapy. Oncol Lett 19: 2705-2712, 2020.
APA
Nakazawa, Y., Nakazawa, S., Kurozumi, S., Ogino, M., Koibuchi, Y., Odawara, H. ... Shirabe, K. (2020). The pathological complete response and secreted protein acidic and rich in cysteine expression in patients with breast cancer receiving neoadjuvant nab‑paclitaxel chemotherapy. Oncology Letters, 19, 2705-2712. https://doi.org/10.3892/ol.2020.11354
MLA
Nakazawa, Y., Nakazawa, S., Kurozumi, S., Ogino, M., Koibuchi, Y., Odawara, H., Oyama, T., Horiguchi, J., Fujii, T., Shirabe, K."The pathological complete response and secreted protein acidic and rich in cysteine expression in patients with breast cancer receiving neoadjuvant nab‑paclitaxel chemotherapy". Oncology Letters 19.4 (2020): 2705-2712.
Chicago
Nakazawa, Y., Nakazawa, S., Kurozumi, S., Ogino, M., Koibuchi, Y., Odawara, H., Oyama, T., Horiguchi, J., Fujii, T., Shirabe, K."The pathological complete response and secreted protein acidic and rich in cysteine expression in patients with breast cancer receiving neoadjuvant nab‑paclitaxel chemotherapy". Oncology Letters 19, no. 4 (2020): 2705-2712. https://doi.org/10.3892/ol.2020.11354
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