A Century of Probiotics: The Past and Present of E. coli Nissle 1917
A century ago, Alfred Nissle discovered that specific strains of Escherichia coli could treat infectious diseases. One of these strains, E. coli Nissle 1917, became the most frequently used probiotic E. coli in research and has been applied to a variety of human conditions. This review compares the properties of E. coli Nissle 1917 with other commercially available E. coli probiotic strains, focusing on their human applications. A literature search summarizes research findings on probiotics Mutaflor, Symbioflor 2, and Colinfant, analyzing their closest relatives and genetic content, including virulence genes. A striking similarity to pathogenic strains causing urinary tract infections is noted. The review traces historical research trends in probiotic treatment and suggests the future of probiotic E. coli may lie in treating gastrointestinal infections, often caused by antibiotic-resistant pathogens—echoing Nissle's original discovery.
Read more