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International Journal of Molecular Medicine

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Article

Differential roles of Bcl2L12 and its short variant in breast cancer lymph node metastasis

  • Authors:
    • Shang-Tao Chien
    • Tzu-Feng Yang
    • Ming-Chang Yang
    • Ching-Mei Hsu
    • Yi-Ren Hong
    • Tai-Min Lee
  • View Affiliations / Copyright

    Affiliations: Department of Pathology, Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan, R.O.C., Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan, R.O.C.
  • Pages: 961-971
    |
    Published online on: June 16, 2015
       https://doi.org/10.3892/or.2015.4071
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Abstract

Bcl2L12 plays a role in post-mitochondrial apoptosis through multiple mechanisms involving p53, αB-crystallin, caspase-3 and -7 in glioblastoma. Bcl2L12 is reported to be a good prognostic marker in breast cancer and correlated with ER and Bcl2 expression status. However, the mechanisms by which Bcl2L12 regulates apoptosis in breast cancer (BCa) remain unknown. Recent studies have shown that Bcl2L12 expression is a useful biomarker in other types of cancer. Thus, we examined whether Bcl2L12 and Bcl2L12A mRNA were associated with breast cancer progression or a specific subtype. In total, 106 paraffin-embedded, different stage breast cancer specimens were prepared and quantified for Bcl2L12 and Bcl2L12A expression by PCR. The correlation between Bcl2L12 and Bcl2L12A mRNA levels and clinicopathological characteristics was statistically analyzed. The results showed that Bcl2L12 and Bcl2L12A mRNA expression was not significantly different across the different stage, grade and TNM classification groups (P>0.005). Using linear regression, Bcl2L12 mRNA was associated with Bcl2L12A mRNA, grade 3 tumor and the triple-negative breast cancer (TNBC) subtype. In non-TNBC specimens, Bcl2L12 mRNA was only correlated with Bcl2L12A mRNA. Bcl2L12A mRNA was positively associated with Bcl2L12 mRNA and the number of lymph node metastases, but negatively correlated with staging in the non-TNBC group. Specifically, Bcl2L12, but not Bcl2L12A, mRNA was significantly higher in TNBC and grade 3 tumors, respectively. In non-TNBC, Bcl2L12A mRNA was significantly highly expressed in tumors with ≥12 metastatic lymph nodes. Bcl2L12 and its variant mRNA were highly expressed in carcinoma in situ (CIS) samples. In addition, they were estimated to be correlated with the total sample and non-TNBC, but not the TNBC group. In summary, a high Bcl2L12 mRNA expression was associated with the high-grade BCa and TNBC subtype. In addition, the interplay between Bcl2L12 and its variant may be associated with high lymph node metastasis in non-TNBC tumors.
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Copy and paste a formatted citation
Spandidos Publications style
Chien S, Yang T, Yang M, Hsu C, Hong Y and Lee T: Differential roles of Bcl2L12 and its short variant in breast cancer lymph node metastasis. Oncol Rep 34: 961-971, 2015.
APA
Chien, S., Yang, T., Yang, M., Hsu, C., Hong, Y., & Lee, T. (2015). Differential roles of Bcl2L12 and its short variant in breast cancer lymph node metastasis. Oncology Reports, 34, 961-971. https://doi.org/10.3892/or.2015.4071
MLA
Chien, S., Yang, T., Yang, M., Hsu, C., Hong, Y., Lee, T."Differential roles of Bcl2L12 and its short variant in breast cancer lymph node metastasis". Oncology Reports 34.2 (2015): 961-971.
Chicago
Chien, S., Yang, T., Yang, M., Hsu, C., Hong, Y., Lee, T."Differential roles of Bcl2L12 and its short variant in breast cancer lymph node metastasis". Oncology Reports 34, no. 2 (2015): 961-971. https://doi.org/10.3892/or.2015.4071
Copy and paste a formatted citation
x
Spandidos Publications style
Chien S, Yang T, Yang M, Hsu C, Hong Y and Lee T: Differential roles of Bcl2L12 and its short variant in breast cancer lymph node metastasis. Oncol Rep 34: 961-971, 2015.
APA
Chien, S., Yang, T., Yang, M., Hsu, C., Hong, Y., & Lee, T. (2015). Differential roles of Bcl2L12 and its short variant in breast cancer lymph node metastasis. Oncology Reports, 34, 961-971. https://doi.org/10.3892/or.2015.4071
MLA
Chien, S., Yang, T., Yang, M., Hsu, C., Hong, Y., Lee, T."Differential roles of Bcl2L12 and its short variant in breast cancer lymph node metastasis". Oncology Reports 34.2 (2015): 961-971.
Chicago
Chien, S., Yang, T., Yang, M., Hsu, C., Hong, Y., Lee, T."Differential roles of Bcl2L12 and its short variant in breast cancer lymph node metastasis". Oncology Reports 34, no. 2 (2015): 961-971. https://doi.org/10.3892/or.2015.4071
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