Deciphering Biophysical Modulation in Ovarian Cancer Cells.

Abstract:

:It has been long known that the oncogenic extracellular environment plays an indispensable role in developing and nurturing cancer cell progression and in resistance to standard treatments. However, by how much the biophysical components of tumour extracellular environment contribute to these processes is uncertain. In particular, the topographic environment is scarcely explored. The biophysical modulation of cell behaviour is primarily facilitated through mechanotransduction-associated mechanisms, including focal adhesion and Rho/ROCK signalling. Dysregulation of these pathways is commonly observed in ovarian cancer and, therefore, biophysical modulation of these mechanisms may be of great importance to ovarian cancer development and progression. In this work, aspects of the biophysical environment were explored using a bioimprinting technique. The study showed that topography-mediated substrate sensing delayed cell attachment, however, cell-cell interactions overrode the effect of topography in some cell lines, such as OVCAR-5. Also, 3D topographical cues were shown to modulate the inhibition of focal adhesion and Rho signalling, which resulted in higher MAPK activity in cells on the bioimprints. It was revealed that c-Src is vital to the biophysical modulation of cell proliferation and inhibition of c-Src could downregulate biophysically modulated MAPK activity. This study provides evidence that the biophysical extracellular environment affects key intracellular mechanisms associated with tumourigenicity in ovarian cancer cells.

journal_name

Cell Biochem Biophys

authors

Sarwar M,Sykes PH,Chitcholtan K,Evans JJ

doi

10.1007/s12013-020-00964-9

subject

Has Abstract

pub_date

2021-01-12 00:00:00

eissn

1085-9195

issn

1559-0283

pii

10.1007/s12013-020-00964-9

pub_type

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