Scientists at Umeå University have pioneered a capsule-based technique that enables researchers to examine individual cells through successive experimental phases. This breakthrough resolves a persistent challenge in cell biology, where cells typically undergo analysis only once, limiting insights into dynamic responses and changes. The innovation promises to enhance studies of disease mechanisms at the single-cell level.
Semi-Permeable Capsules Preserve Cellular Integrity
The method employs microscopic semi-permeable capsules, each encapsulating a single cell within a liquid core and a thin, porous membrane. This design permits small molecules, including enzymes and reagents, to permeate the membrane while retaining larger structures like DNA and RNA inside. Consequently, labs can process hundreds of thousands of cells simultaneously using conventional equipment.
Unlike prior droplet-based approaches, these capsules prevent cell loss or contamination during repeated treatments and analyses. Professor Linas Mazutis explains, “The capsules combine the speed of microfluidics—a technology that handles tiny liquid volumes—with the flexibility of standard lab workflows.” This setup supports sequential molecular biology steps while isolating each cell’s genetic material.
Enhanced Detection of Rare Cell Types
Cells remain viable within the capsules for prolonged periods or can undergo lysis for genetic profiling. The team introduces an advanced RNA sequencing method that simplifies identification of delicate or scarce cell populations, which conventional techniques often overlook.
“All cells are different, and understanding those differences is key to understanding disease,” states Professor Linas Mazutis of Umeå University.
Potential for Precision Medicine
Simple, scalable, and adaptable, the technology suits broad applications in biology and medicine. Long-term, it could illuminate cellular origins of diseases, facilitating tailored therapies. For instance, it allows tracking varied drug responses among cancer cells in a tumor or pinpointing elusive immune cells driving pathology.
The findings appear in a study published in Science by Baronas, D., et al. (2025), titled “High-throughput single cell omics using semipermeable capsules.”
