Lipidomic analysis of cells and extracellular vesicles from high-and low-metastatic triple-negative breast cancer

Nao Nishida-Aoki, Yoshihiro Izumi*, Hiroaki Takeda, Masatomo Takahashi, Takahiro Ochiya, Takeshi Bamba

*この研究の対応する著者

研究成果: Article査読

27 被引用数 (Scopus)

抄録

Extracellular vesicles (EVs) are lipid bilayer nanovesicles secreted from almost all cells including cancer. Cancer-derived EVs contribute to cancer progression and malignancy via educating the surrounding normal cells. In breast cancer, epidemiological and experimental observations indicated that lipids are associated with cancer malignancy. However, lipid compositions of breast cancer EVs and their contributions to cancer progression are unexplored. In this study, we performed a widely targeted quantitative lipidomic analysis in cells and EVs derived from high-and low-metastatic triple-negative breast cancer cell lines, using supercritical fluid chromatography fast-scanning triple-quadrupole mass spectrometry. We demonstrated the differential lipid compositions between EVs and cells of their origin, and between high-and low-metastatic cell lines. Further, we demonstrated EVs from highly metastatic breast cancer accumulated unsaturated diacylglycerols (DGs) compared with EVs from lower-metastatic cells, without increasing the amount in cells. The EVs enriched with DGs could activate the protein kinase D signaling pathway in endothelial cells, which can lead to stimulated angiogenesis. Our results indicate that lipids are selectively loaded into breast cancer EVs to support tumor progression.

本文言語English
論文番号67
ジャーナルMetabolites
10
2
DOI
出版ステータスPublished - 2020 2月
外部発表はい

ASJC Scopus subject areas

  • 内分泌学、糖尿病および代謝内科学
  • 生化学
  • 分子生物学

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