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Y 1 receptor ligand-based nanomicelle as a novel nanoprobe for glioma-targeted imaging and therapy

Y 1 receptor ligand-based nanomicelle as a novel nanoprobe for glioma-targeted imaging and therapy

Juan Li, Yang Du, Zhenqi Jiang, Yuchen Tian, Nianxiang Qiu, Yinjie Wang, Muhammad Zubair Lqbal, Menying Hu, Ruifen Zou, Lijia Luo, Shiyu Du, Jie Tian, Aiguo Wu

Nanoscale. 2018 Mar 29;10(13):5845-5851.

PMID: 29542782

Abstract:

Due to the molecular and cellular heterogeneity of glioma, discovery of novel targeted sites and ligands for glioma imaging and therapy remains challenging. Neuropeptide Y (NPY) Y1 receptors (Y1Rs) are highly over expressed in various brain tumors including glioma, and can serve as potential targeting sites for glioma imaging and therapy. Here, we show by in vivo fluorescent imaging that a highly selective Y1R ligand, [Asn6, Pro34] NPY (AP-NPY), facilitated circumvention of the blood brain barrier (BBB) by nanomicelles specifically targeting glioma. Modification with AP-NPY stabilized doxorubicin-loaded nanomicelles in the normal physiological state and promoted drug release in the acidic tumor microenvironment. Furthermore, targeted delivery of AP-NPY nanomicelles improved the therapeutic efficacy of doxorubicin for glioma, producing a prolonged survival rate. These results suggest that Y1R is a novel targeted receptor, and its selective ligand AP-NPY improves BBB permeability and glioma targeting. Our study paves the way for developing a novel delivery system for diagnosis and treatment of glioma in which Y1Rs are over expressed.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP90880356	Neuropeptide Y, Human - CAS 90880-35-6		90880-35-6	Price

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