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Journal ArticleDOI

A PEGylation-Free Biomimetic Porphyrin Nanoplatform for Personalized Cancer Theranostics.

TLDR
PLP offers a biomimetic theranostic nanoplatform for pretreatment stratification using PET and NIR fluorescence imaging and for further customized cancer management via imaging-guided surgery, PDT, or/and potential chemotherapy.
Abstract
PEGylation (PEG) is the most commonly adopted strategy to prolong nanoparticles’ vascular circulation by mitigating the reticuloendothelial system uptake. However, there remain many concerns in regards to its immunogenicity, targeting efficiency, etc., which inspires pursuit of alternate, non-PEGylated systems. We introduced here a PEG-free, porphyrin-based ultrasmall nanostructure mimicking nature lipoproteins, termed PLP, that integrates multiple imaging and therapeutic functionalities, including positron emission tomography (PET) imaging, near-infrared (NIR) fluorescence imaging and photodynamic therapy (PDT). With an engineered lipoprotein-mimicking structure, PLP is highly stable in the blood circulation, resulting in favorable pharmacokinetics and biodistribution without the need of PEG. The prompt tumor intracellular trafficking of PLP allows for rapid nanostructure dissociation upon tumor accumulation to release monomeric porphyrins to efficiently generate fluorescence and photodynamic reactivity,...

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Citations
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Journal ArticleDOI

Cell Membrane Coated Semiconducting Polymer Nanoparticles for Enhanced Multimodal Cancer Phototheranostics

TL;DR: An organic phototheranostic system that biomimetically targets the component in the tumor microenvironment for enhanced multimodal cancer theranostics and generates enhanced cytotoxic heat and singlet oxygen to exert combinational photothermal and photodynamic therapy, leading to an antitumor efficacy higher than that of the counterparts.
Journal ArticleDOI

Intracellularly Acid-Switchable Multifunctional Micelles for Combinational Photo/Chemotherapy of the Drug-Resistant Tumor.

TL;DR: This study presents a robust nanoplatform for multimodal imaging and combinational therapy of the drug-resistant tumor, which might provide an insight for developing polymer-based NDDS for cancer therapy.
Journal ArticleDOI

Elimination of established tumors with nanodisc-based combination chemoimmunotherapy

TL;DR: This work provides a new, generalizable framework for using nanoparticle-based chemotherapy to initiate antitumor immunity and sensitize tumors to immune checkpoint blockade.
Journal ArticleDOI

High-Density Lipoproteins: Nature’s Multifunctional Nanoparticles

TL;DR: Clinical pharmacokinetics and safety of reconstituted HDL products, comparison of HDL with inorganic and other organic nanoparticles, and intrinsic targeting properties to different recipient cells are summarized.
References
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Journal ArticleDOI

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

TL;DR: 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.
Journal ArticleDOI

Nanoparticle therapeutics: an emerging treatment modality for cancer

TL;DR: The features of nanoparticle therapeutics that distinguish them from previous anticancer therapies are highlighted, and how these features provide the potential for therapeutic effects that are not achievable with other modalities are described.
Journal ArticleDOI

Biodegradable long-circulating polymeric nanospheres

TL;DR: Monodisperse biodegradable nanospheres were developed from amphiphilic copolymers composed of two biocompatible blocks and exhibited dramatically increased blood circulation times and reduced liver accumulation in mice.
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Accumulation of sub-100 nm polymeric micelles in poorly permeable tumours depends on size

TL;DR: It is shown that the penetration and efficacy of the larger micelles could be enhanced by using a transforming growth factor-β inhibitor to increase the permeability of the tumours.
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