Two-photon excitation imaging of exocytosis and endocytosis and determination of their spatial organization

Haruo Kasai, Takuya Kishimoto, Tomomi Nemoto, Hiroyasu Hatakeyama, Ting Ting Liu, Noriko Takahashi

研究成果: Review article査読

37 被引用数 (Scopus)

抄録

Two-photon excitation imaging is the least invasive optical approach to study living tissues. We have established two-photon extracellular polar-tracer (TEP) imaging with which it is possible to visualize and quantify all exocytic events in the plane of focus within secretory tissues. This technology also enables estimate of the precise diameters of vesicles independently of the spatial resolution of the optical microscope, and determination of the fusion pore dynamics at nanometer resolution using TEP-imaging based quantification (TEPIQ). TEP imaging has been applied to representative secretory glands, e.g., exocrine pancreas, endocrine pancreas, adrenal medulla and a pheochromocytoma cell line (PC12), and has revealed unexpected diversity in the spatial organization of exocytosis and endocytosis crucial for the physiology and pathology of secretory tissues and neurons. TEP imaging and TEPIQ analysis are powerful tools for elucidating the molecular and cellular mechanisms of exocytosis and certain related diseases, such as diabetes mellitus, and the development of new therapeutic agents and diagnostic tools.

本文言語English
ページ(範囲)850-877
ページ数28
ジャーナルAdvanced Drug Delivery Reviews
58
7
DOI
出版ステータスPublished - 2006 10 31

ASJC Scopus subject areas

  • Pharmaceutical Science

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