Abstract |
Nanoparticle-based tumor therapies are extensively studied; however, few are capable of improving patient survival time due to premature drug leakage, off target effects, and poor tissue penetration. Previously, we successfully synthesized a novel family of Y1 receptor (Y1R) ligand modified, photoluminescent BPLP nanobubbles and nanoparticles for targeted breast cancer ultrasound imaging; however, increased accumulation could also be observed in the liver, kidney, and spleen, suggesting significant interaction of the particles with macrophages in vivo. Herein, for the first time, we imparted antiphagocytosis capability to Y1R ligand functionalized BPLP-WPU polymeric micelles through the incorporation of a CD47 human glycoprotein based self- peptide. Application of self- peptide modified, DOX loaded micelles in vivo resulted in a 100% survival rate and complete tumor necrosis over 100 days of treatment. In vivo imaging of SPION loaded, self- peptide modified micelles revealed effective targeting to the tumor site while analysis of iron content demonstrated reduced particle accumulation in the liver and kidney, demonstrating reduced macrophage interaction, as well as a 2-fold increase of particles in the tumor. As these results demonstrate, Y1R ligand, self- peptide modified BPLP-WPU micelles are capable of target specific cancer treatment and imaging, making them ideal candidates to improve survival rate and tumor reduction clinically.
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Authors | Zhenqi Jiang, Yuchen Tian, Dingying Shan, Yinjie Wang, Ethan Gerhard, Jianbi Xia, Rong Huang, Yan He, Aiguo Li, Jianchao Tang, Huimin Ruan, Yong Li, Juan Li, Jian Yang, Aiguo Wu |
Journal | Biomaterials
(Biomaterials)
Vol. 170
Pg. 70-81
(07 2018)
ISSN: 1878-5905 [Electronic] Netherlands |
PMID | 29653288
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2018 Elsevier Ltd. All rights reserved. |
Chemical References |
- Antineoplastic Agents
- Ligands
- Magnetite Nanoparticles
- Micelles
- Peptides
- Polyurethanes
- Receptors, Neuropeptide Y
- neuropeptide Y-Y1 receptor
- Doxorubicin
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Topics |
- Animals
- Antineoplastic Agents
(pharmacokinetics, pharmacology)
- Cell Death
(drug effects)
- Doxorubicin
(pharmacology)
- Drug Liberation
- Humans
- Hydrogen-Ion Concentration
- Ligands
- Luminescence
- MCF-7 Cells
- Magnetic Resonance Imaging
- Magnetite Nanoparticles
(chemistry, ultrastructure)
- Mice, Nude
- Micelles
- Neoplasms
(diagnostic imaging, therapy)
- Peptides
(chemistry)
- Phagocytosis
(drug effects)
- Polyurethanes
(chemistry)
- Receptors, Neuropeptide Y
(metabolism)
- Survival Analysis
- THP-1 Cells
- Time Factors
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