Asian Pacific Journal of Cancer Prevention

  • 제15권14호
  • /
  • Pages.5577-5582
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  • 2014
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  • 1513-7368(pISSN)
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  • 2476-762X(eISSN)
아시아태평양암예방학회 (Asian Pacific Journal of Cancer Prevention)
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Short-Hairpin RNA-Mediated MTA2 Silencing Inhibits Human Breast Cancer Cell Line MDA-MB231 Proliferation and Metastasis

  • Lu, Jun (Department of Pathology, Capital University, Beijing Chaoyang Hospital) ;
  • Jin, Mu-Lan (Department of Pathology, Capital University, Beijing Chaoyang Hospital)
  • 발행 : 2014.07.30
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초록

Objective: To observe the effects of metastasis-associated tumor gene family 2 (MTA2) depletion on human breast cancer cell proliferation and metastasis. Methods: A short-hairpin RNA targeting MTA2 was chemically synthesized and transfected into a lentivirus to construct Lv-shMTA2 for infection into the MDA-MB231 human breast cancer cell line. At 48 hours after infection cells were harvested and mRNA and protein levels of MTA2 were determined by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting, respectively. Cell viability and metastasis were assessed by CCK-8, wound-healing assay and Transwell assay, respectively. In addition, a xenograft model of human breast cancer was constructed to investigate cancerous cell growth and capacity for metastasis. Results: After infection with Lv-shMTA2, mRNA and protein levels of MTA2 was significantly reduced (p<0.05) and MDA-MB231 cell proliferation and metastasis were inhibited (p<0.05). In addition, mean tumor size was smaller than that in control group nude mice (p<0.05) and numbers of metastatic deposits in lung were lower than in control group mice (p<0.05). Depletion of MTA2 affected MMP-2 and apoptosis-related protein expression. Conclusions: For the first time to our knowledge we showed that MTA2 depletion could significantly inhibit human breast cancer cell growth and metastasis, implying that MTA2 might be involved in the progression of breast cancer. The role of MTA2 in breast cancer growth and metastasis might be linked with regulation of matrix metalloproteinase and apoptosis.

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피인용 문헌

  1. Downregulation of human intercellular adhesion molecule-1 attenuates the metastatic ability in human breast cancer cell lines vol.35, pp.3, 2016, https://doi.org/10.3892/or.2016.4543