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Establishment of a novel neuroblastoma mouse model

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Neuroblastoma is the most common childhood cancer, which arises from sympathetic neural precursors. Because the prognosis of advanced neuroblastoma is known to be poor, developments of new anti-cancer drugs are desperately needed. For screening of therapeutic drugs for neuroblastoma, genetically engineered animal models would be useful. In an attempt to obtain transgenic mice carrying simian virus 40 T-antigen gene under control of tetracycline responsive elements with cytomegalovirus promoter, we found one line of mice exhibiting bilateral adrenal tumors by leakage expression of T-antigen in adrenal gland. These adrenal tumors contained small round tumor cells with increased N/C ratio, showing chromogranin A and neuron specific enolase-like immunoreactivity. By electron microscopy, tumor cells containing neuritic processes with synaptic vesicles surrounding them were observed. The plasma levels of dopamine were significantly elevated in these transgenic mice. MYCN expression levels were significantly elevated in these tumors. These findings indicated that the adrenal tumor was a neuroblastoma. This mouse model would be a useful tool for development of chemotherapeutic drugs and understanding the etiology of neuroblastoma.
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Document Type: Research Article

Affiliations: Ghrelin Research Project, Translational Research Center, Kyoto University Hospital, Sakyo-ku, Kyoto 606-8507, Japan., Email: [email protected]

Publication date: January 1, 2008

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  • The International Journal of Oncology provides an international forum for the publication of the latest, cutting-edge research in the broad area of oncology and cancer treatment. The journal accepts original high quality works and reviews on all aspects of oncology research including carcinogenesis, metastasis, epidemiology, chemotherapy and viral oncology. Through fair and efficient peer review, the journal is dedicated to publishing top tier research in the field, offering authors rapid publication as well as high standards of copy-editing and production. The International Journal of Oncology is published on a monthly basis in both print and early online.
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