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Histological approach to long-term culture on collagen type I permits the evaluation of vasculogenic mimicry morphological features and the identification of endothelial-like cell-specific antigens. Here, we show the preparation of collagen type I solution, the embedding and the sections cutting of D17 osteosarcoma cells long-term culture, and then the hematoxylin and eosin (H&E) staining to identify endothelial-like structure. Moreover, we provide the protocols for periodic acid-Schiff (PAS) staining to evidence glycoproteins and CD31 immunohistochemistry to exclude the presence of this endothelial marker, as per definition by vasculogenic mimicry concept. This method allows to consider long-term culture as tissue, promoting the deeper study of vascular-like structures in vitro. © 2022. Springer Science+Business Media, LLC, part of Springer Nature.


Marcella Massimini, Mariarita Romanucci, Raffaella De Maria, Leonardo Della Salda. Histological Evaluation of Long-Term Collagen Type I Culture. Methods in molecular biology (Clifton, N.J.). 2022;2514:95-105

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PMID: 35771422

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