Abstract |
Investigation of hepatoblastoma in experimental conditions contributes relevantly to a detailed understanding of tumor biology and the investigation of new treatment approaches. Most systematical analyses currently use subcutaneous xenografts. We established a reproducible intrahepatic model with the hepatoblastoma-cell lines HuH6 and HepT1. The cells were stably transfected with a plasmid vector encoding for Gaussia luciferase. HuH6 and HepT1 were injected intrasplenically in NOD/LtSz-scid IL2Rγnull mice. Mice were splenectomized in order to avoid intrasplenical tumor growth. Multifocal intrahepatic tumor growth was observed in 85% (11/13) of HuH6 tumors and 55% (5/9) of HepT1 tumors. Serum Alpha-fetoprotein and Gaussia luciferase increased 5 weeks after tumor-cell inoculation. Tumors were detected by MRI at this time point. Immunhistochemical analysis such as vascularity (CD31), proliferation index (Ki-67), cytokeratin 7 and distribution of β- catenin in intrahepatic tumors were different to subcutaneous tumors. We established a reproducible xenograft model for intrahepatic hepatoblastoma growth with a high tumor incidence. Monitoring of tumor cell viability was optimized by measuring GLuc. This model enables further experimental investigations of HB in a more physiological milieu as emphasized by the β- catenin distribution.
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Authors | Verena Ellerkamp, Sorin Armeanu-Ebinger, Julia Wenz, Steven W Warmann, Juergen Schäfer, Peter Ruck, Joerg Fuchs |
Journal | PloS one
(PLoS One)
Vol. 6
Issue 8
Pg. e23419
( 2011)
ISSN: 1932-6203 [Electronic] United States |
PMID | 21853130
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Interleukin Receptor Common gamma Subunit
- Ki-67 Antigen
- Neoplasm Proteins
- Platelet Endothelial Cell Adhesion Molecule-1
- alpha-Fetoproteins
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Topics |
- Animals
- Cell Line, Tumor
- Cell Proliferation
- Disease Models, Animal
- Hepatoblastoma
(pathology)
- Humans
- Immunohistochemistry
- Interleukin Receptor Common gamma Subunit
(deficiency, metabolism)
- Ki-67 Antigen
(metabolism)
- Liver Neoplasms
(pathology)
- Magnetic Resonance Imaging
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Neoplasm Proteins
(metabolism)
- Platelet Endothelial Cell Adhesion Molecule-1
(metabolism)
- Spleen
(pathology)
- Xenograft Model Antitumor Assays
- alpha-Fetoproteins
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