A human multi-cellular model shows how platelets drive production of diseased extracellular matrix and tissue invasion

Autor: Beatrice Malacrida, Sam Nichols, Eleni Maniati, Roanne Jones, Robin Delanie-Smith, Reza Roozitalab, Eleanor J. Tyler, Morgan Thomas, Gina Boot, Jonas Mackerodt, Michelle Lockley, Martin M. Knight, Frances R. Balkwill, Oliver M.T. Pearce
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: iScience, Vol 24, Iss 6, Pp 102676- (2021)
Druh dokumentu: article
ISSN: 2589-0042
DOI: 10.1016/j.isci.2021.102676
Popis: Summary: Guided by a multi-level “deconstruction” of omental metastases, we developed a tetra (four cell)-culture model of primary human mesothelial cells, fibroblasts, adipocytes, and high-grade serous ovarian cancer (HGSOC) cell lines. This multi-cellular model replicated key elements of human metastases and allowed malignant cell invasion into the artificial omental structure. Prompted by findings in patient biopsies, we used the model to investigate the role of platelets in malignant cell invasion and extracellular matrix, ECM, production. RNA (sequencing and quantitative polymerase-chain reaction), protein (proteomics and immunohistochemistry) and image analysis revealed that platelets stimulated malignant cell invasion and production of ECM molecules associated with poor prognosis. Moreover, we found that platelet activation of mesothelial cells was critical in stimulating malignant cell invasion. Whilst platelets likely activate both malignant cells and mesothelial cells, the tetra-culture model allowed us to dissect the role of both cell types and model the early stages of HGSOC metastases.
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