Open AccessOrthotopic induction of CH 157 MN convexity and skull base meningiomas into nude mice using stereotactic surgery and MRI characterization
Author(s) -
La Cava Francesca,
Fringuello Mingo Alberto,
Irrera Pietro,
Di Vito Aldo,
Cordaro Alessia,
Brioschi Chiara,
Colombo Serra Sonia,
Cabella Claudia,
Terreno Enzo,
Miragoli Luigi
Publication year - 2019
Publication title -
animal models and experimental medicine
Language(s) - English
Resource type - Journals
ISSN - 2576-2095
DOI - 10.1002/ame2.12050
Subject(s) - skull , base (topology) , chemistry , nuclear medicine , medicine , anatomy , mathematical analysis , mathematics
Meningioma in vivo research is hampered by the difficulty of establishing an easy and reproducible orthotopic model able to mimic the characteristics of a human meningioma. Moreover, leptomeningeal dissemination and high mortality are often associated with such orthotopical models, making them useless for clinical translation studies. An optimized method for inducing meningiomas in nude mice at two different sites is described in this paper and the high reproducibility and low mortality of the models are demonstrated. Skull base meningiomas were induced in the auditory meatus and convexity meningiomas were induced on the brain surface of 23 and 24 nude mice, respectively. Both models led to the development of a mass easily observable by imaging methods. Dynamic contrast enhanced MRI was used as a tool to monitor and characterize the pathology onset and progression. At the end of the study, histology was performed to confirm the neoplastic origin of the diseased mass.