Researchers at the University of Minnesota have developed “SpudCell,” a synthetic cell that can grow, divide, and pass traits to offspring, marking a significant step toward artificial life.
Scientists at the University of Minnesota have announced the creation of “SpudCell,” which they describe as the most life-like synthetic cell to date. This laboratory-engineered system is composed entirely of nonliving components and demonstrates the ability to grow, replicate its genetic material, divide, and even pass beneficial traits to subsequent generations.
The researchers characterize their work as a major advancement toward the goal of constructing artificial life. However, they emphasize that these synthetic cells cannot survive outside of carefully controlled laboratory environments and depend on externally supplied nutrients and specialized components for growth and division. Their findings were published as a preprint on bioRxiv, indicating that the research has not yet undergone peer review.
“One of the most ambitious and fascinating goals of bioengineering is to build a biochemical system that could cross the threshold from chemistry to life,” the researchers stated. They noted that their work represents “the first minimal cell with a cell cycle, genetically encoded growth and division, all coupled to selection and competition.”
SpudCell is distinct from previous synthetic cell projects, as it was assembled from chemically defined, nonliving components rather than starting with living organisms. Its genome, consisting of 90,000 base pairs, enables the synthetic cell to produce proteins, replicate its DNA, and undergo growth and division into daughter cells.
In their experiments, the researchers introduced a genetic mutation that allowed some synthetic cells to grow faster than others. Over several generations, these faster-growing cells produced more offspring, becoming increasingly prevalent in the population. This observation illustrates a basic form of natural selection at work.
The team believes their research marks “key milestones towards the construction of synthetic life” and could eventually lay the groundwork for “fully artificial organisms” intended for various biotechnology applications. Despite these advancements, the researchers acknowledge that their synthetic cells remain significantly less capable than even the simplest living cells.
Currently, SpudCell cannot survive outside laboratory conditions, requires externally supplied nutrients, and relies on ribosomes purified from E. coli bacteria. After five generations, only about 30% of the daughter cells successfully inherited the complete synthetic genome.
These limitations indicate that the project has not yet achieved the creation of self-sustaining artificial life. Nevertheless, the researchers assert that their work demonstrates the potential to recreate many of life’s defining characteristics using nonliving materials.
As synthetic cell technology advances, the researchers also recognize the potential for new biosafety and biosecurity concerns. “This project offers a significant milestone towards the evolvability of synthetic cells, making it more likely that more robust, autonomous systems will be available soon,” the authors wrote. They added that this progress underscores the urgent need to establish a safety and security framework for future synthetic cell engineering.
Looking ahead, the researchers plan to focus on enhancing the self-sufficiency of synthetic cells by enabling them to regenerate more of their own molecular machinery. They aim to improve the distribution of genomes during cell division and facilitate the natural emergence of mutations, rather than relying solely on those introduced by researchers.
According to Fox News Digital, the implications of this research extend beyond the laboratory, raising important questions about the future of synthetic biology and its applications.