Volume 21, Issue 9 2409994
Research Article

Elucidating a Tumor-Selective Nanoparticle Delivery Mechanism at the Colorectal Lumen–Tumor Interface for Precise Local Cancer Therapy

Juho Lee

Juho Lee

College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, 46241 Republic of Korea

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Dongmin Kwak

Dongmin Kwak

College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, 46241 Republic of Korea

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Hyunwoo Kim

Hyunwoo Kim

College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, 46241 Republic of Korea

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Muneeb Ullah

Muneeb Ullah

College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, 46241 Republic of Korea

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Jihyun Kim

Jihyun Kim

College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, 46241 Republic of Korea

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Muhammad Naeem

Muhammad Naeem

Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, Punjab, 46000 Pakistan

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Seonghwan Hwang

Seonghwan Hwang

College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, 46241 Republic of Korea

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Eunok Im

Eunok Im

College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, 46241 Republic of Korea

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In-Soo Yoon

In-Soo Yoon

College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, 46241 Republic of Korea

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Yunjin Jung

Yunjin Jung

College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, 46241 Republic of Korea

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Jin-Wook Yoo

Corresponding Author

Jin-Wook Yoo

College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan, 46241 Republic of Korea

E-mail: [email protected]

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First published: 19 January 2025

Abstract

Although various colorectal cancer (CRC)-targeted nanoparticles have been developed to selectively deliver anticancer agents to tumor tissues, severe off-target side effects still persist due to unwanted systemic nanoparticle distribution, limiting the therapeutic outcome. Here, by elucidating a tumor-selective nanoparticle delivery mechanism occurring at the colorectal lumen–tumor interface, an alternative CRC-targeted delivery route is proposed, which enables highly tumor-selective delivery without systemic distribution, through direct drug delivery from the outside of the body (colorectal lumen) to tumors in the colorectum. Owing to the presence of accessible tumor-specific receptors such as CD44 at the colorectal lumen–tumor interface, but not at the colorectal lumen–normal tissue interface, colorectal luminal surface (CLS)-targeting ligand-functionalized nanoparticles selectively accumulate in CRC tissues without systemic distribution, resulting in successful local CRC therapy. The findings suggest that CLS-targeted lumen-to-tumor delivery can be a suitable strategy for highly CRC-specific drug delivery for precise local CRC therapy.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Data are available in the article and Supporting Information.

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