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Diminished expression of MiR-15a is an independent prognostic marker for breast cancer cases

  • Yoshiaki Shinden
  • , Sayuri Akiyoshi
  • , Hiroki Ueo
  • , Syo Nambara
  • , Tomoko Saito
  • , Hisateru Komatsu
  • , Masami Ueda
  • , Hidenari Hirata
  • , Shotaro Sakimura
  • , Ryutaro Uchi
  • , Yuki Takano
  • , Tomohiro Iguchi
  • , Hidetoshi Eguchi
  • , Keishi Sugimachi
  • , Yuko Kijima
  • , Hiroaki Ueo
  • , Shoji Natsugoe
  • , Koshi Mimori

Research output: Contribution to journalArticlepeer-review

Abstract

Background/Aim: MiR-15a targets Cyclin E1 (CCNE1), which regulates the cell cycle and promotes cell proliferation and progression. Herein, we investigated the clinicopathological significance of miR-15a as a prognostic marker in breast cancer (BC) cases.

Materials and Methods: We collected primary tumor samples of 230 BC cases, including 68 triple-negative cases. The expression levels of miR-15a in primary tumors were measured by qRT-PCR assay.

Results: Low expression of miR-15a in primary tumors was significantly correlated with shorter disease-free survival (p=0.0012) and overall survival (p=0.005) compared to the high miR-15a expression in triple-negative BC cases. Multivariate analysis indicated that low miR-15a expression was an independent prognostic factor for overall survival [RR=2.56(1.03-7.18), p=0.04].

Conclusion: MiR-15a expression levels could be a promising biological and prognostic marker for overall survival especially in triple-negative BC cases.

Original languageEnglish
Pages (from-to)123-128
Number of pages6
JournalAnticancer research
Volume35
Issue number1
Publication statusPublished - 01-01-2015
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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