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Neutral Sphingomyelinase 2 (nSMase2)-dependent Exosomal Transfer of Angiogenic MicroRNAs Regulate Cancer Cell Metastasis

Kosaka, Nobuyoshi ; Iguchi, Haruhisa ; Hagiwara, Keitaro ; Yoshioka, Yusuke ; Takeshita, Fumitaka ; Ochiya, Takahiro

The Journal of biological chemistry, 2013-04, Vol.288 (15), p.10849-10859 [Periódico revisado por pares]

United States: Elsevier Inc

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Título:
Neutral Sphingomyelinase 2 (nSMase2)-dependent Exosomal Transfer of Angiogenic MicroRNAs Regulate Cancer Cell Metastasis
Autor: Kosaka, Nobuyoshi ; Iguchi, Haruhisa ; Hagiwara, Keitaro ; Yoshioka, Yusuke ; Takeshita, Fumitaka ; Ochiya, Takahiro
Assuntos: Angiogenesis ; Animals ; Breast Neoplasms - genetics ; Breast Neoplasms - metabolism ; Breast Neoplasms - pathology ; Cell Biology ; Cell Line, Tumor ; Cell-cell Communication ; Cell-cell Interaction ; Exosomes ; Extracellular Vesicles ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Mammary Neoplasms, Animal - genetics ; Mammary Neoplasms, Animal - metabolism ; Mammary Neoplasms, Animal - pathology ; Metastasis ; Mice ; MicroRNA ; MicroRNAs - genetics ; MicroRNAs - metabolism ; miR-210 ; Neoplasm Metastasis ; Neoplasm Proteins - genetics ; Neoplasm Proteins - metabolism ; Neovascularization, Pathologic - genetics ; Neovascularization, Pathologic - metabolism ; Neovascularization, Pathologic - pathology ; RNA, Neoplasm - genetics ; RNA, Neoplasm - metabolism ; Sphingomyelin Phosphodiesterase - genetics ; Sphingomyelin Phosphodiesterase - metabolism ; Tumor Microenvironment
É parte de: The Journal of biological chemistry, 2013-04, Vol.288 (15), p.10849-10859
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content type line 23
A research fellow for the Japan Society for the Promotion of Science.
Descrição: The release of humoral factors between cancer cells and the microenvironmental cells is critical for metastasis; however, the roles of secreted miRNAs in non-cell autonomous cancer progression against microenvironmental cells remain largely unknown. Here, we demonstrate that the neutral sphyngomyelinase 2 (nSMase2) regulates exosomal microRNA (miRNA) secretion and promotes angiogenesis within the tumor microenvironment as well as metastasis. We demonstrate a requirement for nSMase2-mediated cancer cell exosomal miRNAs in the regulation of metastasis through the induction of angiogenesis in inoculated tumors. In addition, miR-210, released by metastatic cancer cells, was shown to transport to endothelial cells and suppress the expression of specific target genes, which resulted in enhanced angiogenesis. These findings suggest that the horizontal transfer of exosomal miRNAs from cancer cells can dictate the microenviromental niche for the benefit of the cancer cell, like “on demand system” for cancer cells. Background: Contribution of exosomal microRNAs to cancer metastasis remains unknown. Results: Exosomal angiogenic microRNAs secreted by metastatic cancer cells promote the metastasis through the activation of endothelial cells. Conclusion: Horizontal transfer of exosomal miRNAs from cancer cells can dictate the microenviromental niche for the benefit of the cancer cell. Significance: This is the first to connect cancer metastasis to the exosomal microRNA in vivo.
Editor: United States: Elsevier Inc
Idioma: Inglês

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Neutral Sphingomyelinase 2 (nSMase2)-dependent Exosomal Transfer of Angiogenic MicroRNAs Regulate Cancer Cell Metastasis

Kosaka, Nobuyoshi ; Iguchi, Haruhisa ; Hagiwara, Keitaro ; Yoshioka, Yusuke ; Takeshita, Fumitaka ; Ochiya, Takahiro

United States: Elsevier Inc

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