An experimental model of brain metastasis of lung carcinoma

Neuropathology : Official Journal of the Japanese Society of Neuropathology
Ze-An ZhangHiroko Nonaka

Abstract

Most metastatic brain tumors originate from lung cancers. However, there has been relatively little progress on developing an experimental model of metastasis of lung cancer to the brain. By injecting Lewis lung carcinoma cells into the right internal carotid artery of C57BL/6NCrj mice, we succeeded in developing a model of metastatic brain tumors. In this model, carcinoma cells proliferated in the choroid plexus of the right lateral ventricle and formed a nodular tumor mass, while carcinoma cells in the cerebral parenchyma multiplied along the perivascular sheath without forming a nodular mass. Twelve days after injection, carcinoma cells spread into the left hemicerebrum. Fifteen days after injection, carcinoma cells could be seen in both hemispheres, along with intraventricular tumor formation. The maximum life span of mice with metastatic brain tumors was 22 days. Our model essentially replicated the general process of metastatic cancer and may have a significant role in further research on brain metastasis of lung cancer.

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Nov 28, 2012·Journal of Neuro-oncology·Ngoc H OnDonald W Miller
Apr 8, 2011·Nature Reviews. Cancer·Patricia S SteegQuentin R Smith
Jan 13, 2010·Environmental Health Perspectives·Melissa SeelbachMichal Toborek
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Feb 28, 2013·International Journal of Molecular Sciences·Yi-Wen ZangZong-You Chen

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