OncoTargets and Therapy (2018-01-01)

Exosome-mediated delivery of MALAT1 induces cell proliferation in breast cancer

  • Zhang P,
  • Zhou H,
  • Lu K,
  • Lu Y,
  • Wang Y,
  • Feng T

Journal volume & issue
Vol. Volume 11
pp. 291 – 299


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Ping Zhang, Hongxing Zhou, Kefeng Lu, Yunou Lu, Yan Wang, Tongbao Feng Department of Clinical Laboratory, The Affiliated Changzhou No 2 People’s Hospital, Nanjing Medical University, Changzhou, People’s Republic of China Background: Breast cancer is the most common cancer in women worldwide. Cancer-secreted exosomes have recently been recognized as important mediators of intercellular communication. The aim of this study was to determine the role of exosomal long noncoding RNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) in breast cancer progression. Materials and methods: Breast cancer specimens were obtained with informed consent from patients. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect MALAT1 expression, and cellular proliferation was measured using cell counting kit-8 (CCK-8) assay. Results: MALAT1 was highly expressed in breast cancer tissues and associated with disease progression. Breast cancer exosomes promoted cell proliferation and exosome-mediated MALAT1 to induce cell proliferation. Conclusion: These findings indicated that exosomal MALAT1 could regulate cancer progression and represent a novel strategy for overcoming breast cancer. Keywords: breast cancer, exosomes, MALAT1, cell proliferation