Harnessing Motile Amoeboid Cells as Trucks for Microtransport and -Assembly

Area of Science:

• Biohybrid systems
• Cellular microtransport
• Biomimetic robotics

Background:

• Bacterial cells are established for microtransport, but motile adherent cells are under-explored.
• Biohybrid systems leverage biological components for engineered functions.

Purpose of the Study:

• To investigate the potential of motile amoeboid cells as microtransport vehicles.
• To explore methods for controlling cell-driven cargo transport.

Main Methods:

• Incubation of Dictyostelium discoideum amoebae with various microparticles.
• Utilizing chemotaxis to guide cell-cargo movement via chemoattractant gradients.
• Observing collective transport of large cargo by multiple cells.

Main Results:

• Dictyostelium discoideum cells readily adhere to and transport diverse microcargo materials.
• Chemotactic aggregation enables self-organized cargo clustering.
• Externally imposed gradients direct cellular microtrucks to specific locations.
• Collective cell action transports cargo significantly larger than individual cells.

Conclusions:

• Motile amoeboid cells offer a versatile platform for cell-driven microtransport.
• Chemotaxis provides effective directional control for cellular cargo delivery.
• This approach holds promise for applications in targeted delivery and micro-assembly.