Wrapping Pathways of Anisotropic Dumbbell Particles by Giant Unilamellar Vesicles.

ABSTRACT: Endocytosis is a key cellular process involved in the uptake of nutrients, pathogens, or the therapy of diseases. Most studies have focused on spherical objects, whereas biologically relevant shapes can be highly anisotropic. In this letter, we use an experimental model system based on Giant Unilamellar Vesicles (GUVs) and dumbbell-shaped colloidal particles to mimic and investigate the first stage of the passive endocytic process: engulfment of an anisotropic object by the membrane. Our model has specific ligand-receptor interactions realized by mobile receptors on the vesicles and immobile ligands on the particles. Through a series of experiments, theory, and molecular dynamics simulations, we quantify the wrapping process of anisotropic dumbbells by GUVs and identify distinct stages of

SUBMITTER: Azadbakht A 

PROVIDER: S-EPMC10214445 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature