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Article

Exosome-shuttling microRNA-21 promotes cell migration and invasion-targeting PDCD4 in esophageal cancer

  • Authors:
    • Juan Liao
    • Ran Liu
    • Ya-Juan Shi
    • Li-Hong Yin
    • Yue-Pu Pu
  • View Affiliations / Copyright

    Affiliations: Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009. P.R. China
  • Pages: 2567-2579
    |
    Published online on: March 24, 2016
       https://doi.org/10.3892/ijo.2016.3453
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Abstract

Recent evidence indicates that exosomes can mediate certain microRNAs (miRNAs) involved in a series of biological functions in tumor occurrence and development. Our previous studies showed that microRNA-21 (miR-21) was abundant in both esophageal cancer cells and their corresponding exosomes. The present study explored the function of exosome-shuttling miR-21 involved in esophageal cancer progression. We found that exosomes could be internalized from the extracellular space to the cytoplasm. The exosome-derived Cy3-labeled miR-21 mimics could be transported into recipient cells in a neutral sphingomyelinase 2 (nSMase2)-dependent manner. miR-21 overexpression from donor cells significantly promoted the migration and invasion of recipient cells by targeting programmed cell death 4 (PDCD4) and activating its downstream c-Jun N-terminal kinase (JNK) signaling pathway after co-cultivation. Our population plasma sample analysis indicated that miR-21 was upregulated significantly in plasma from esophageal cancer patients and showed a significant risk association for esophageal cancer. Our data demonstrated that a close correlation existed between exosome-shuttling miR-21 and esophageal cancer recurrence and distant metastasis. Thus, exosome-shuttling miR-21 may become a potential biomarker for prognosis among esophageal cancer patients.
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Copy and paste a formatted citation
Spandidos Publications style
Liao J, Liu R, Shi Y, Yin L and Pu Y: Exosome-shuttling microRNA-21 promotes cell migration and invasion-targeting PDCD4 in esophageal cancer. Int J Oncol 48: 2567-2579, 2016.
APA
Liao, J., Liu, R., Shi, Y., Yin, L., & Pu, Y. (2016). Exosome-shuttling microRNA-21 promotes cell migration and invasion-targeting PDCD4 in esophageal cancer. International Journal of Oncology, 48, 2567-2579. https://doi.org/10.3892/ijo.2016.3453
MLA
Liao, J., Liu, R., Shi, Y., Yin, L., Pu, Y."Exosome-shuttling microRNA-21 promotes cell migration and invasion-targeting PDCD4 in esophageal cancer". International Journal of Oncology 48.6 (2016): 2567-2579.
Chicago
Liao, J., Liu, R., Shi, Y., Yin, L., Pu, Y."Exosome-shuttling microRNA-21 promotes cell migration and invasion-targeting PDCD4 in esophageal cancer". International Journal of Oncology 48, no. 6 (2016): 2567-2579. https://doi.org/10.3892/ijo.2016.3453
Copy and paste a formatted citation
x
Spandidos Publications style
Liao J, Liu R, Shi Y, Yin L and Pu Y: Exosome-shuttling microRNA-21 promotes cell migration and invasion-targeting PDCD4 in esophageal cancer. Int J Oncol 48: 2567-2579, 2016.
APA
Liao, J., Liu, R., Shi, Y., Yin, L., & Pu, Y. (2016). Exosome-shuttling microRNA-21 promotes cell migration and invasion-targeting PDCD4 in esophageal cancer. International Journal of Oncology, 48, 2567-2579. https://doi.org/10.3892/ijo.2016.3453
MLA
Liao, J., Liu, R., Shi, Y., Yin, L., Pu, Y."Exosome-shuttling microRNA-21 promotes cell migration and invasion-targeting PDCD4 in esophageal cancer". International Journal of Oncology 48.6 (2016): 2567-2579.
Chicago
Liao, J., Liu, R., Shi, Y., Yin, L., Pu, Y."Exosome-shuttling microRNA-21 promotes cell migration and invasion-targeting PDCD4 in esophageal cancer". International Journal of Oncology 48, no. 6 (2016): 2567-2579. https://doi.org/10.3892/ijo.2016.3453
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