New Tech Makes Tissue Analysis Accessible

Spatial omics technologies, which map molecular locations within tissues, have revolutionized understanding in cancer, neurobiology, and immunology. However, their complexity and cost often hinder clinical adoption.

A research team at City University of Hong Kong (CityUHK), led by Professor Shi Peng, has introduced Spectrum-FISH, a novel method for spatial analysis that is both sequencing-free and amplification-free. This technique utilizes a unique "touch-and-go" molecular fishing strategy with nanoprobes, capable of direct application to fresh tissue samples without extensive pre-treatment.

Spectrum-FISH preserves spatial information through an effective registration strategy, mapping molecular signals to specific cells and tissue structures. Experiments on mouse and human colorectal samples demonstrated its potential for accessible spatial profiling by minimizing sequencing dependence, tissue processing, and assay costs. The findings were published in Nature Biomedical Engineering and align with ongoing discussions on translating spatial omics into clinical practice.

Professor Shi emphasized that biomedical innovation must prioritize practicality and accessibility. Spectrum-FISH's simplified workflow and reduced costs aim to bring spatial omics closer to routine clinical use. A related US patent further underscores the technology's translational promise in precision medicine.