Tumor vascular permeability and the EPR effect in macromolecular therapeutics: A review

H. Maeda, J. Wu, T. Sawa, Y. Matsumura, K. Hori

研究成果: Article査読

5303 被引用数 (Scopus)


Most solid tumors possess unique pathophysiological characteristics that are not observed in normal tissues or organs, such as extensive angiogenesis and hence hypervasculature, defective vascular architecture, impaired lymphatic drainage/recovery system, and greatly increased production of a number of permeability mediators. The phenomenon now known as the enhanced permeability and retention (EPR) effect for lipid and macromolecular agents has been observed to be universal in solid tumors. Primarily, enhanced vascular permeability will sustain an adequate supply of nutrients and oxygen for rapid tumor growth. The EPR effect also provides a great opportunity for more selective targeting of lipid- or polymer-conjugated anticancer drugs, such as SMANCS and PK-1, to the tumor. In the present review, the basic characteristics of the EPR effect, particularly the factors involved, are described, as well as its modulation for improving delivery of macromolecular drugs to the tumor. Tumor-specific vascular physiology is also described. (C) 2000 Elsevier Science B.V.

ジャーナルJournal of Controlled Release
出版ステータスPublished - 2000 3月 1

ASJC Scopus subject areas

  • 薬科学


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