Tootfinder

This https://arxiv.org/abs/2505.16750 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Theory of cell size regulation during migration in adhered cells
Cell migration is closely linked to cell shape, yet cell size is often assumed to remain constant. This assumption is challenged by recent experiments showing that cells undergo volume loss during spreading and swelling upon activation, with migration velocity correlated to cell size. In this Letter, we present a minimal theoretical framework for cellular size regulation and its influence on migration velocity. We connect cell size to membrane potential and active, actin-driven forces. Spatial …

This https://arxiv.org/abs/2504.07446 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nli…

A mass conserved reaction-diffusion system reveals switching between coexisting polar and oscillatory cell motility states
Motile eukaryotic cells display distinct modes of migration that often occur within the same cell type. It remains unclear, however, whether transitions between the migratory modes require changes in external conditions, or whether the different modes are coexisting states that emerge from the underlying signaling network. Using a simplified mass-conserved reaction-diffusion model of small GTPase signaling with F-actin mediated feedback, we uncover a distinct bistable mechanism (involving gradi…