Document Detail


Challenges in the development of magnetic particles for therapeutic applications.
MedLine Citation:
PMID:  18608583     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Certain iron-based particle formulations have useful magnetic properties that, when combined with low toxicity and desirable pharmacokinetics, encourage their development for therapeutic applications. This mini-review begins with background information on magnetic particle use as MRI contrast agents and the influence of material size on pharmacokinetics and tissue penetration. Therapeutic investigations, including (1) the loading of bioactive materials, (2) the use of stationary, high-gradient (HG) magnetic fields to concentrate magnetic particles in tissues or to separate material bound to the particles from the body, and (3) the application of high power alternating magnetic fields (AMF) to generate heat in magnetic particles for hyperthermic therapeutic applications are then surveyed. Attention is directed mainly to cancer treatment, as selective distribution to tumors is well-suited to particulate approaches and has been a focus of most development efforts. While magnetic particles have been explored for several decades, their use in therapeutic products remains minimal; a discussion of future directions and potential ways to better leverage magnetic properties and to integrate their use into therapeutic regimens is discussed.
Authors:
Stephen E Barry
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Review    
Journal Detail:
Title:  International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group     Volume:  24     ISSN:  1464-5157     ISO Abbreviation:  Int J Hyperthermia     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-10-16     Completed Date:  2009-01-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8508395     Medline TA:  Int J Hyperthermia     Country:  England    
Other Details:
Languages:  eng     Pagination:  451-66     Citation Subset:  IM    
Affiliation:
Alnis BioSciences, Inc., Research Triangle Park, NC 27709, USA. sbarry@oncologic.net
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MeSH Terms
Descriptor/Qualifier:
Animals
Contrast Media / administration & dosage,  pharmacokinetics
Drug Delivery Systems*
Electromagnetic Fields
Ferric Compounds / administration & dosage,  chemistry,  pharmacokinetics
Hot Temperature
Humans
Magnetic Resonance Imaging
Magnetics*
Nanoparticles*
Neoplasms / therapy
Particle Size
Grant Support
ID/Acronym/Agency:
HHSN261200411004C//PHS HHS
Chemical
Reg. No./Substance:
0/Contrast Media; 0/Ferric Compounds; 1309-37-1/ferric oxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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