Topics

Size-Dependent EPR Effect of Polymeric Nanoparticles on Tumor Targeting.

07:00 EST 3rd December 2019 | BioPortfolio

Summary of "Size-Dependent EPR Effect of Polymeric Nanoparticles on Tumor Targeting."

Passive targeting of large nanoparticles by the enhanced permeability and retention (EPR) effect is a crucial concept for solid tumor targeting in cancer nanomedicine. There is, however, a trade-off between the long-term blood circulation of nanoparticles and their nonspecific background tissue uptake. To define this size-dependent EPR effect, near-infrared fluorophore-conjugated polyethylene glycols (PEG-ZW800s; 1-60 kDa) are designed and their biodistribution, pharmacokinetics, and renal clearance are evaluated in tumor-bearing mice. The targeting efficiency of size-variant PEG-ZW800s is investigated in terms of tumor-to-background ratio (TBR). Interestingly, smaller sized PEGs (≤20 kDa, 12 nm) exhibit significant tumor targeting with minimum to no nonspecific uptakes, while larger sized PEGs (>20 kDa, 13 nm) accumulate highly in major organs, including the lungs, liver, and pancreas. Among those tested, 20 kDa PEG-ZW800 exhibits the highest TBR, while excreting unbound molecules to the urinary bladder. This result lays a foundation for engineering tumor-targeted nanoparticles and therapeutics based on the size-dependent EPR effect.

Affiliation

Journal Details

This article was published in the following journal.

Name: Advanced healthcare materials
ISSN: 2192-2659
Pages: e1901223

Links

DeepDyve research library

PubMed Articles [29686 Associated PubMed Articles listed on BioPortfolio]

Tumor Targeting Strategies of Smart Fluorescent Nanoparticles and Their Applications in Cancer Diagnosis and Treatment.

Advantages such as strong signal strength, resistance to photobleaching, tunable fluorescence emissions, high sensitivity, and biocompatibility are the driving forces for the application of fluorescen...

To what extent do polymeric stabilizers affect nanoparticles characteristics?

Colloidal synthesis of nanoparticles using polymeric stabilizers as a template of a structure directing agent provided a plethora of opportunities in fabricating nanoparticles (NPs) with controlled si...

Targeting and microenvironment-improving of phenylboronic acid-decorated soy protein nanoparticles with different sizes to tumor.

It is essential for nanoparticles to delivery drugs accurately and penetrate deeply to tumor. However, complicated tumor microenvironment such as elevated tumor interstitial fluid pressure (IFP) and s...

Magnetic core-shell S-nitrosothiols nanoparticles as tumor dual-targeting theranostic platform.

The external force guided targeting strategy, as well as the in vivo active targeting strategy based on "ligands-receptors" on the targeting cells and tissues have attracted much research interest. He...

Photothermally triggered cytosolic drug delivery of glucose functionalized polydopamine nanoparticles in response to tumor microenvironment for the GLUT1-targeting chemo-phototherapy.

The success in the application of nanomedicines for tumor therapy is largely dependent on the development of efficient tumor targeting, specific and effective drug delivery systems. Here, through a si...

Clinical Trials [12213 Associated Clinical Trials listed on BioPortfolio]

Targeted Polymeric Nanoparticles Loaded With Cetuximab and Decorated With Somatostatin Analogue to Colon Cancer

Due to the great toxicity of chemotherapeutic drugs to both the healthy and cancerous area, the efficient targeting could be of great benefit for a patient with advanced or metastatic tumo...

Phase I Study of TENPA in Advanced Solid Cancer

The purpose of this study is to investigate the safety and to determine maximum tolerated dose and recommended phase 2 dose of TENPA (Targeting-Enhancing Nanoparticles of Paclitaxel) in pa...

Topical Silver Nanoparticles for Microbial Activity

Silver nanoparticles are one of most nanoparticles use nowadays in the research area because it has specific physical and chemical properties, in medical fields silver nanoparticles can in...

Presence of Nanoparticles in the Amniotic Fluid

The nanoparticles (NP) are defined as particles whose size is no greater than 100 nanometers. However, their impact on health remains little evaluated. Placental transfer of NP has been p...

Paclitaxel-Loaded Polymeric Micelle and Carboplatin as First-Line Therapy in Treating Patients With Advanced Ovarian Cancer

RATIONALE: Drugs used in chemotherapy, such as paclitaxel-loaded polymeric micelle and carboplatin, work in different ways to stop the growth of tumor cells, either by killing the cells or...

Medical and Biotech [MESH] Definitions

Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.

A gene product of the p16 tumor suppressor gene (GENES, P16). It antagonizes the function of MDM2 PROTEIN (which regulates P53 TUMOR SUPPRESSOR PROTEIN by targeting it for degradation). p14ARF is produced from the beta mRNA transcript of the p16 gene. The other gene product, produced from the alternatively spliced alpha transcript, is CYCLIN-DEPENDENT KINASE INHIBITOR P16. Both p16 gene products have tumor suppressor functions.

Synthesized magnetic particles under 100 nanometers possessing many biomedical applications including DRUG DELIVERY SYSTEMS and CONTRAST AGENTS. The particles are usually coated with a variety of polymeric compounds.

Nanoparticles produced from metals whose uses include biosensors, optics, and catalysts. In biomedical applications the particles frequently involve the noble metals, especially gold and silver.

A layer of protein coating adsorbed by NANOPARTICLES upon entry into PLASMA or other protein-containing biological fluids, which affects how nanoparticles are internalized by cells and cleared from the body.

Quick Search


DeepDyve research library

Relevant Topics

Cancer Disease
Cancer is not just one disease but many diseases. There are more than 100 different types of cancer. Most cancers are named for the organ or type of cell in which they start - for example, cancer that begins in the colon is called colon cancer; cancer th...

Hepatology
Hepatology is the study of liver, gallbladder, biliary tree, and pancreas, and diseases associated with them. This includes viral hepatitis, alcohol damage, cirrhosis and cancer. As modern lifestyles change, with alcoholism and cancer becoming more promi...


Searches Linking to this Article