Evidence map›Paper›PMID 20816045›Full record

ArticleBiophysical journal2010

Diffusion of particles in the extracellular matrix: the effect of repulsive electrostatic interactions.

Triantafyllos Stylianopoulos, Ming-Zher Poh, Numpon Insin, Moungi G Bawendi, Dai Fukumura, Lance L Munn, Rakesh K Jain

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 161 papers.

0numbers the graph read from it
0cells of the map it votes in
161citing papers in PubMed
0.3field-weighted citation impact, top 37% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

161 citing papers in PubMed, 18 citations in OpenAlex.

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101 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Triantafyllos StylianopoulosEdwin L. Steele Laboratory, Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Ming-Zher Poh
Numpon Insin
Moungi G Bawendi
Dai Fukumura
Lance L Munn
Rakesh K Jain
Harvard University · USMassachusetts General Hospital · USMassachusetts Institute of Technology · US

Funding

Vascular Normalization: Rolse of Perivascular CellsP01CA080124 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI JAIN, RAKESH K. · 2000 to 2016
$35.0M
Integrative Biology of Tumor MetastasisR01CA085140 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI JAIN, RAKESH K. · 2005 to 2009
$8.6M
Probing Tumor Microenvironment Using NanotechnologyR01CA126642 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI JAIN, RAKESH K. · 2008 to 2012
$8.3M
NO in Tumor Angiogenesis,Microcirculation &Rad.TherapyR01CA096915 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI FUKUMURA, DAI · 2002 to 2012
$3.0M
Training Program in Pathophysiology of Solid TumorsT32CA073479 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI JAIN, RAKESH K. · 1998 to 2012
$3.0M
Role of BMDCs in Solid Tumor Growth and RelapseR01CA115767 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI JAIN, RAKESH K. · 2006 to 2010
$2.2M
Flow-based remodeling and function of tumor vasculatureR01CA149285 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI MUNN, LANCE L. · 2010 to 2013
$1.3M
NCI NIH HHS 5P01CA080124NCI NIH HHS P01 CA080124NCI NIH HHS R01 CA085140NCI NIH HHS R01 CA096915NCI NIH HHS R01 CA115767NCI NIH HHS R01 CA126642NCI NIH HHS R01CA126642NCI NIH HHS R01 CA149285NCI NIH HHS T32 CA073479
6 · The paper itself

Abstract

Diffusive transport of macromolecules and nanoparticles in charged fibrous media is of interest in many biological applications, including drug delivery and separation processes. Experimental findings have shown that diffusion can be significantly hindered by electrostatic interactions between the diffusing particle and charged components of the extracellular matrix. The implications, however, have not been analyzed rigorously. Here, we present a mathematical framework to study the effect of charge on the diffusive transport of macromolecules and nanoparticles in the extracellular matrix of biological tissues. The model takes into account steric, hydrodynamic, and electrostatic interactions. We show that when the fiber size is comparable to the Debye length, electrostatic forces between the fibers and the particles result in slowed diffusion. However, as the fiber diameter increases the repulsive forces become less important. Our results explain the experimental observations that neutral particles diffuse faster than charged particles. Taken together, we conclude that optimal particles for delivery to tumors should be initially cationic to target the tumor vessels and then change to neutral charge after exiting the blood vessels.

Indexed as

Models, BiologicalStatic ElectricityAnimalsCollagenDiffusionDrug Delivery SystemsExtracellular MatrixHydrodynamicsModels, MolecularNanoparticlesNeoplasmsOsmolar ConcentrationParticle SizeRatsReproducibility of ResultsCollagen

Identifiers

PMID20816045
PMCPMC2931749
OpenAlexW1511436383

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.