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Published in: Journal of Cancer Research and Clinical Oncology 3/2019

01-03-2019 | Original Article – Cancer Research

Melanoma tumour vasculature heterogeneity: from mice models to human

Authors: Vincent Pautu, Adélie Mellinger, Pauline Resnier, Elise Lepeltier, Ludovic Martin, Lise Boussemart, Franck Letournel, Catherine Passirani, Nicolas Clere

Published in: Journal of Cancer Research and Clinical Oncology | Issue 3/2019

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Abstract

Tumour angiogenesis is defined by an anarchic vasculature and irregularities in alignment of endothelial cells. These structural abnormalities could explain the variability in distribution of nanomedicines in various tumour models. Then, the main goal of this study was to compare and to characterize the tumour vascular structure in different mouse models of melanoma tumours (B16F10 and SK-Mel-28) and in human melanomas from different patients. Tumours were obtained by subcutaneous injection of 106 B16F10 and 3.106 SK-Mel-28 melanoma cells in C57BL/6 and nude mice, respectively. Tumour growth was evaluated weekly, while vasculature was analysed through fluorescent labelling via CD31 and desmin. Significant differences in tumour growth and mice survival were evidenced between the two melanoma models. A fast evolution of tumours was observed for B16F10 melanoma, reaching a tumour size of 100 mm3 in 7 days compared to SK-Mel-28 which needed 21 days to reach the same volumes. Important differences in vascularization were exposed between the melanoma models, characterized by a significant enhancement of vascular density and a significant lumen size for mice melanoma models compared to human. Immunostaining revealed irregularities in endothelium structure for both melanoma models, but structural differences of vasculature were observed, characterized by a stronger expression of desmin in SK-Mel-28 tumours. While human melanoma mainly develops capillaries, structural irregularities are also observed on the samples of this tumour model. Our study revealed an impact of cell type and tumour progression on the structural vasculature of melanoma, which could impact the distribution of drugs in the tumour environment.
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Metadata
Title
Melanoma tumour vasculature heterogeneity: from mice models to human
Authors
Vincent Pautu
Adélie Mellinger
Pauline Resnier
Elise Lepeltier
Ludovic Martin
Lise Boussemart
Franck Letournel
Catherine Passirani
Nicolas Clere
Publication date
01-03-2019
Publisher
Springer Berlin Heidelberg
Published in
Journal of Cancer Research and Clinical Oncology / Issue 3/2019
Print ISSN: 0171-5216
Electronic ISSN: 1432-1335
DOI
https://doi.org/10.1007/s00432-018-2809-z

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