Inverse correlation between Naa10p and MMP-9 expression and the combined prognostic value in breast cancer patients

Med Oncol. 2013 Jun;30(2):562. doi: 10.1007/s12032-013-0562-3. Epub 2013 Apr 2.

Abstract

To analyze the expression profiles of N-a-acetyltransferase 10 protein (Naa10p/ARD1) and matrix metalloproteinase 9 (MMP-9) in human breast cancer and evaluate their possible prognostic values in breast cancer patients. Quantitative RT-PCR was used to evaluate mRNA expression of Naa10p and MMP-9 in 55 cases of fresh breast cancer tissues, and immunohistochemistry was performed for detecting Naa10p and MMP-9 proteins on breast cancer with tissue microarray containing 80 specimens. Furthermore, Naa10p and MMP-9 were measured in 253 breast cancer tissues from patients with up to 15-year follow-up. Survival curves were generated using the Kaplan-Meier method. Multivariate analysis was performed by using the Cox proportional hazard regression model to assess the prognostic values of Naa10p and MMP-9. Both Naa10p and MMP-9 expression in breast cancer tissues were significantly higher than those in the matched non-cancerous tissues (p = 0.000 for both). There was an inverse correlation between Naa10p and MMP-9 expression at mRNA and protein levels (p = 0.000 for both). Patients with MMP-9- positive expression had a poorer overall survival (OS) and disease-free survival (DFS) than those with MMP-9-negative expression (p = 0.001 for both). However, patients with Naa10p-positive expression had better OS and DFS (p = 0.000 for both). In addition, Naa10p-positive/MMP-9- negative patients had the best OS and DFS (p = 0.000 for both). In multivariate survival analysis, TNM stage, Naa10p expression, MMP-9 expression, and combined expression status of Naa10p/MMP-9 were independent prognostic factors related to OS (p = 0.000, 0.007, 0.012, and 0.000, respectively) and DFS (p = 0.000, 0.002, 0.014, and 0.000, respectively).The expression level of Naa10p was inversely correlated with that of MMP-9 in human breast cancer samples. Combined analysis of Naa10p and MMP-9 had a significantly increased value for determining the prognosis of breast cancer patients.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Biomarkers, Tumor / biosynthesis*
  • Breast Neoplasms / diagnosis*
  • Breast Neoplasms / enzymology*
  • Breast Neoplasms / mortality
  • Female
  • Follow-Up Studies
  • Gene Expression Regulation, Neoplastic*
  • Humans
  • Matrix Metalloproteinase 9 / biosynthesis
  • Matrix Metalloproteinase 9 / genetics*
  • Middle Aged
  • N-Terminal Acetyltransferase A / biosynthesis
  • N-Terminal Acetyltransferase A / genetics*
  • N-Terminal Acetyltransferase E / biosynthesis
  • N-Terminal Acetyltransferase E / genetics*
  • Prognosis
  • Survival Rate / trends

Substances

  • Biomarkers, Tumor
  • N-Terminal Acetyltransferase A
  • NAA10 protein, human
  • N-Terminal Acetyltransferase E
  • Matrix Metalloproteinase 9