학술논문
Correlated MRI and Ultramicroscopy (MR-UM) of Brain Tumors Reveals Vast Heterogeneity of Tumor Infiltration and Neoangiogenesis in Preclinical Models and Human Disease
Document Type
article
Author
Michael O. Breckwoldt; Julia Bode; Felix Sahm; Thomas Krüwel; Gergely Solecki; Artur Hahn; Peter Wirthschaft; Anna S. Berghoff; Maximilian Haas; Varun Venkataramani; Andreas von Deimling; Wolfgang Wick; Christel Herold-Mende; Sabine Heiland; Michael Platten; Martin Bendszus; Felix T. Kurz; Frank Winkler; Björn Tews
Source
Frontiers in Neuroscience, Vol 12 (2019)
Subject
Language
English
ISSN
1662-453X
Abstract
Diffuse tumor infiltration into the adjacent parenchyma is an effective dissemination mechanism of brain tumors. We have previously developed correlated high field magnetic resonance imaging and ultramicroscopy (MR-UM) to study neonangiogenesis in a glioma model. In the present study we used MR-UM to investigate tumor infiltration and neoangiogenesis in a translational approach. We compare infiltration and neoangiogenesis patterns in four brain tumor models and the human disease: whereas the U87MG glioma model resembles brain metastases with an encapsulated growth and extensive neoangiogenesis, S24 experimental gliomas mimic IDH1 wildtype glioblastomas, exhibiting infiltration into the adjacent parenchyma and along white matter tracts to the contralateral hemisphere. MR-UM resolves tumor infiltration and neoangiogenesis longitudinally based on the expression of fluorescent proteins, intravital dyes or endogenous contrasts. Our study demonstrates the huge morphological diversity of brain tumor models regarding their infiltrative and neoangiogenic capacities and further establishes MR-UM as a platform for translational neuroimaging.