Startup Raises $2.3 Million to Test Drugs on Tiny Lab-Grown Guts

Intero Biosystems raised $2.3 million in early funding to sell GastroScreen, a tiny lab-grown piece of human intestine for testing drugs, foods and chemicals before human trials. The Denver startup, formed at the University of Michigan in 2024, will sell test kits or run tests for drug companies, offering another option besides animal tests as the FDA opens to alternatives.