LHRH-functionalized superparamagnetic iron oxide nanoparticles for breast cancer targeting and contrast enhancement in MRI

This paper shows that superparamagnetic iron oxide nanoparticles (SPIONs) conjugated to luteinizing hormone releasing hormone (LHRH) (LHRH–SPIONs), can be used to target breast cancer cells. They also act as contrast enhancement agents during the magnetic resonance imaging of breast cancer xenograft...

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Bibliographic Details
Published in:	Materials Science & Engineering C Vol. 29; no. 4; pp. 1467 - 1479
Main Authors:	Meng, J., Fan, J., Galiana, G., Branca, R.T., Clasen, P.L., Ma, S., Zhou, J., Leuschner, C., Kumar, C.S.S.R., Hormes, J., Otiti, T., Beye, A.C., Harmer, M.P., Kiely, C.J., Warren, W., Haataja, M.P., Soboyejo, W.O.
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 05-05-2009
Subjects:	Breast cancer detection Magnetic nanoparticles Receptor-mediated endocytosis Breast cancer detection Receptor-mediated endocytosis Magnetic nanoparticles
Online Access:	Get full text
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Summary:	This paper shows that superparamagnetic iron oxide nanoparticles (SPIONs) conjugated to luteinizing hormone releasing hormone (LHRH) (LHRH–SPIONs), can be used to target breast cancer cells. They also act as contrast enhancement agents during the magnetic resonance imaging of breast cancer xenografts. A combination of transmission electron microscopy (TEM) and spectrophotometric analysis was used in our experiments, to investigate the specific accumulation of the functionalized superparamagnetic iron oxide nanoparticles (SPIONs) in cancer cells. The contrast enhancement of conventional T2 images obtained from the tumor tissue and of breast cancer xenograft bearing mice is shown to be much greater than that in saline controls, when the tissues were injected with LHRH–SPIONs. Magnetic anisotropy multi-CRAZED images of tissues extracted from mice injected with SPIONs were also found to have enhanced MRI contrast in breast cancer xenografts and metastases in the lungs.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1
ISSN:	0928-4931 1873-0191
DOI:	10.1016/j.msec.2008.09.039