Thapa, BV and Banerjee, M and Glimm, T and Saini, DK and Bhat, R (2024) The senescent mesothelial matrix accentuates colonization by ovarian cancer cells. In: Cellular and Molecular Life Sciences, 81 (1). pp. 1-15.
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Abstract
Ovarian cancer is amongst the most morbid of gynecological malignancies due to its diagnosis at an advanced stage, a transcoelomic mode of metastasis, and rapid transition to chemotherapeutic resistance. Like all other malignancies, the progression of ovarian cancer may be interpreted as an emergent outcome of the conflict between metastasizing cancer cells and the natural defense mounted by microenvironmental barriers to such migration. Here, we asked whether senescence in coelom-lining mesothelia, brought about by drug exposure, affects their interaction with disseminated ovarian cancer cells. We observed that cancer cells adhered faster on senescent human and murine mesothelial monolayers than on non-senescent controls. Time-lapse epifluorescence microscopy showed that mesothelial cells were cleared by a host of cancer cells that surrounded the former, even under sub-confluent conditions. A multiscale computational model predicted that such colocalized mesothelial clearance under sub-confluence requires greater adhesion between cancer cells and senescent mesothelia. Consistent with the prediction, we observed that senescent mesothelia expressed an extracellular matrix with higher levels of fibronectin, laminins and hyaluronan than non-senescent controls. On senescent matrix, cancer cells adhered more efficiently, spread better, and moved faster and persistently, aiding the spread of cancer. Inhibition assays using RGD cyclopeptides suggested the adhesion was predominantly contributed by fibronectin and laminin. These findings led us to propose that the senescence-associated matrisomal phenotype of peritoneal barriers enhances the colonization of invading ovarian cancer cells contributing to the metastatic burden associated with the disease. © 2023, The Author(s).
| Item Type: | Journal Article |
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| Publication: | Cellular and Molecular Life Sciences |
| Publisher: | Springer Science and Business Media Deutschland GmbH |
| Additional Information: | The copyright for this article belongs to authors. |
| Keywords: | fibronectin, animal; cell adhesion; epithelium; extracellular matrix; female; human; mouse; ovary tumor; pathology; peritoneum; physiology, Animals; Cell Adhesion; Epithelium; Extracellular Matrix; Female; Fibronectins; Humans; Mice; Ovarian Neoplasms; Peritoneum |
| Department/Centre: | Division of Biological Sciences > Molecular Reproduction, Development & Genetics Division of Interdisciplinary Sciences > Centre for Biosystems Science and Engineering UG Programme |
| Date Deposited: | 28 Feb 2024 10:52 |
| Last Modified: | 28 Feb 2024 10:52 |
| URI: | https://eprints.iisc.ac.in/id/eprint/83698 |
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