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Nanodrug Delivery: Is the Enhanced Permeability and Retention Effect Sufficient for Curing Cancer?

Open access
Nakamura, Yuko, Mochida, Ai, Choyke, Peter L., Kobayashi, Hisataka·2016·Bioconjugate Chemistry

Abstract

Nanotechnology offers several attractive design features that have prompted its exploration for cancer diagnosis and treatment. Nanosized drugs have a large loading capacity, the ability to protect the payload from degradation, a large surface on which to conjugate targeting ligands, and controlled or sustained release. Nanosized drugs also leak preferentially into tumor tissue through permeable tumor vessels and are then retained in the tumor bed due to reduced lymphatic drainage. This process is known as the enhanced permeability and retention (EPR) effect. However, while the EPR effect is widely held to improve delivery of nanodrugs to tumors, it in fact offers less than a 2-fold increase in nanodrug delivery compared with critical normal organs, resulting in drug concentrations that are not sufficient for curing most cancers. In this Review, we first overview various barriers for nanosized drug delivery with an emphasis on the capillary wall's resistance, the main obstacle to delivering drugs. Then, we discuss current regulatory issues facing nanomedicine. Finally, we discuss how to make the delivery of nanosized drugs to tumors more effective by building on the EPR effect.

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Metadata

Authors
Nakamura, Y., Mochida, A., Choyke, P. L., & Kobayashi, H.
Venue
Bioconjugate Chemistry
Published
2016-09-02
Volume
27
Issue
10
Pages
2225-2238
ISSN
  • 1043-1802 (ISSN-L)
  • 1520-4812
OpenAlex
W2518509288
Cited by
1,101
References
25
FWCI
29.82
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Nanodrug Delivery: Is the Enhanced Permeability and Retention Effect Sufficient for Curing Cancer? https://app.cochat.ai/papers/10.1021/acs.bioconjchem.6b00437
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Nakamura, Y., Mochida, A., Choyke, P. L., & Kobayashi, H. (2016). Nanodrug Delivery: Is the Enhanced Permeability and Retention Effect Sufficient for Curing Cancer? Bioconjugate Chemistry. https://doi.org/10.1021/acs.bioconjchem.6b00437

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