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Clinical implications of GRHL3 protein expression in breast cancer

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Tumor Biology

Abstract

The objective of this study was to investigate the expression and significance of the GRHL3 protein in breast cancer diagnosis and prognosis. Overall, 111 patients with histologically confirmed breast cancer who had undergone radical surgery were enrolled in this study. The GRHL3 protein expression status in the breast cancers was evaluated by immunohistochemistry. The relationship between GRHL3 protein expression status and clinicopathological factors and the breast cancer prognoses was also determined. In total, 71 (63.96 %) out of 111 cases were found to express GRHL3 protein. GRHL3 expression was higher in breast cancers, compared to other pathologic cancer types (χ 2 = 5.68, P < 0.05). Moreover, GRHL3 protein was also observed to correlate with breast cancer clinical stage and histological grade (χ 2 = 7.99, P < 0.05 and χ 2 = 7.907, P < 0.05, respectively). Interestingly, triple-negative breast cancers had lower expression rates than other breast cancers (41.18 vs. 71.28 %, P < 0.05). GRHL3 was shown to be an independent prognostic factor of breast cancer in Cox regression analysis. Altogether, our results indicate predominant GRHL3 expression in breast cancers, especially non-triple-negative cancers and early stage cancers. GRHL3 expression appeared to decrease with tumor progression. Survival analysis demonstrated the inhibitory effect of GRHL3 in breast cancer. These results strongly suggest the possible involvement of GRHL3 in tumor suppression.

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Acknowledgments

This work was supported by the National Nature Science Foundation of China (nos. 81102029 and 81172047).

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Authors and Affiliations

  1. Department of Transfusion, Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China, 110001

    Huanming Xu & Jixiang Cui

  2. Department of Breast Surgery, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China, 110001

    Caigang Liu & Zuowei Zhao

  3. Department of Ultrasonic Diagnosis, First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China, 110001

    Ningning Gao

  4. Department of Breast Surgery, First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China, 110001

    Guanglei Chen

  5. Department of Pharmacology, China Medical University, Shenyang, Liaoning Province, China, 110001

    Yan Wang

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  1. Huanming Xu
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  2. Caigang Liu
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  3. Zuowei Zhao
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  4. Ningning Gao
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  5. Guanglei Chen
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  6. Yan Wang
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  7. Jixiang Cui
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Correspondence to Caigang Liu or Zuowei Zhao.

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Xu, H., Liu, C., Zhao, Z. et al. Clinical implications of GRHL3 protein expression in breast cancer. Tumor Biol. 35, 1827–1831 (2014). https://doi.org/10.1007/s13277-013-1244-7

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  • DOI: https://doi.org/10.1007/s13277-013-1244-7

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