2025/11/29 by L. Anger, Lucas Anger, A. Schoenit +20 · 3 voices
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #Cellular Mechanics and Interactions #Elasticity and Material Modeling #Force Microscopy Techniques and Applications #physics.bio-ph #q-bio.QM
paper · pdf · doi:10.48550/arxiv.2512.00550
openalex publication_date 2025/11/29 · openalex created_date 2025/12/03 · openalex updated_date 2026/07/30
Cells within biological tissue are constantly subjected to dynamic mechanical forces. Measuring the internal stress of tissues has proven crucial for our understanding of the role of mechanical forces in fundamental biological processes like morphogenesis, collective migration, cell division or cell elimination and death. Previously, we have introduced Bayesian Inversion Stress Microscopy (BISM), which is relying on measuring cell-generated traction forces in vitro and has proven particularly useful to measure absolute stresses in confined cell monolayers. We further demonstrate the applicability and robustness of BISM across various experimental settings with different boundary conditions, ranging from confined tissues of arbitrary shape to monolayers composed of different cell types. Importantly, BISM does not require assumptions on cell rheology. Therefore, it can be applied to complex heterogeneous tissues consisting of different cell types, as long as they can be grown on a flat substrate. Finally, we compare BISM to other common stress measurement techniques using a coherent experimental setup, followed by a discussion on its limitations and further perspectives.