Dextran-functionalized magnetic fluid mediating magnetohyperthermia for treatment of Ehrlich-solid-tumor-bearing mice: toxicological and histopathological evaluations.

Abstract	Dextran-functionalized maghemite fluid (DexMF) has been tested to treat Ehrlich-solid-tumor-bearing mice, evidencing its potential use in mediating magnetohyperthermia in breast cancer treatment. However, although magnetic nanoparticles tend to accumulate in tumor tissues, part of the nanomaterial can reach the blood stream, and then the organism. The aim of this study was to investigate the acute systemic effects of the intratumoral injection of DexMF mediating magnetohyperthermia in the treatment of an advanced clinical Ehrlich-solid-tumor, assessed through histopathological analyses of liver, kidneys, heart and spleen, comet assay, micronucleus test, hemogram, and serum levels of bilirubin, aspartate aminotransferase, alanine aminotransferase, gamma glutamyl transferase, alkaline phosphatase, creatinine, and urea. The tumor's histopathology and morphometry were used to assess its aggressiveness and regression. DexMF mediating hyperthermia was effective in containing tumor aggressiveness and in inducing tumor regression, besides showing no toxic effects. Its physical characteristics also suggest that it is safe to use in other biomedical applications.
Authors	Ana Luisa Miranda-Vilela, Kelly Reis Yamamoto, Kely Lopes Caiado Miranda, Breno Noronha Matos, Marcos Célio de Almeida, João Paulo Figueiró Longo, José de Souza Filho, Juliana Menezes Soares Fernandes, Patrícia Pommé Confessori Sartoratto, Zulmira Guerrero Marques Lacava
Journal	Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine (Tumour Biol) Vol. 35 Issue 4 Pg. 3391-403 (Apr 2014) ISSN: 1423-0380 [Electronic] Netherlands
PMID	24292954 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References	Dextrans gamma-Glutamyltransferase
Topics	Animals Carcinoma, Ehrlich Tumor (genetics, pathology, therapy) Comet Assay Dextrans (administration & dosage) Female Hyperthermia, Induced (adverse effects, methods) Magnetic Field Therapy (adverse effects, methods) Magnetic Resonance Imaging Mice Micronuclei, Chromosome-Defective gamma-Glutamyltransferase (blood)

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