Medical breakthrough: "Mini lung" opens the door to personalized treatment for respiratory diseases
A lab-grown, patient-specific lung allows researchers to test therapies precisely before real-world application.
Scientists have developed a miniature human lung model using stem cells from a single individual, enabling personalized study of respiratory diseases and precise testing of treatments.
The model transforms stem cells into all major lung cell types, creating a structure genetically identical to the donor. It simulates three-dimensional breathing motions and provides an accurate environment for alveoli, which exchange oxygen and defend the body against pathogens.
Researchers tested the model by simulating tuberculosis infection, observing the same cellular and inflammatory changes as in a real infected lung, including immune cell aggregation and alveolar barrier breakdown after five days, demonstrating the model’s accuracy in disease simulation.
This breakthrough represents a major step toward personalized medicine, allowing drugs to be tested on a patient-specific lung before actual treatment, increasing drug effectiveness and reducing side effects, while offering a precise alternative to traditional animal testing.
The team aims to use this model to study a wide range of conditions—from viral infections such as influenza and COVID-19 to chronic diseases like asthma and pulmonary fibrosis, as well as lung cancer research—opening new frontiers for individualized medical research.
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