University of Minnesota Develops SpudCell, the First Synthetic Cell with a Complete Life Cycle

Researchers at the University of Minnesota's College of Biological Sciences have developed SpudCell, the world's first synthetic cell capable of completing a full life cycle using only non-living chemical components. 

The breakthrough marks a significant advance in synthetic biology and could open new opportunities in medicine, biotechnology and sustainable manufacturing.

SpudCell performs key biological functions, including genome replication, growth, nutrient uptake, selection and genetically programmed cell division. 

Unlike natural cells, it does not rely on a cytoskeleton for division. Instead, specialised membrane proteins accumulate on the cell surface, creating mechanical stress that causes the membrane to split into new cells.

The research also demonstrated that SpudCell can undergo selection and competition. A genetically modified version producing higher levels of membrane fusion protein grew more rapidly and generated more offspring than the original.

 After five generations, the enhanced variant became dominant, particularly under nutrient-limited conditions, demonstrating evolutionary selection in a fully synthetic chemical system.

SpudCell contains a compact 90-kilobase-pair genome distributed across seven DNA plasmids, enabling researchers to programme individual cellular functions independently. 

To support future development, the team has launched Biotic, an open research initiative focused on establishing shared standards for synthetic cell engineering. 

Researchers believe the platform could eventually enable the production of advanced medicines, novel biomaterials and industrial chemicals through efficient, biologically based manufacturing processes.