Chinese scientists test Stereo-seq V2 on preserved cancer tissue, raising hopes it could even study Einstein’s brain.
Could the preserved brain of Albert Einstein, sliced into 240 blocks and stored since his death in 1955, hold clues to the cellular basis of genius? Could long-frozen cancer tissues, tucked away in hospital archives for nearly a decade, now reveal secrets of tumor evolution?Chinese scientists say their upgraded RNA-mapping technique could one day make such a study possible.
A team from BGI-Research and partner institutes has developed Stereo-seq V2, an advanced spatial transcriptomics tool that can analyze old biological samples once considered unusable.The method successfully processed cancer tissues stored under poor conditions for nearly a decade, raising hopes that long-preserved samples could be mined for new scientific insights.“If we are fortunate enough to analyse Einstein’s brain, we could give it a try,” Li Yang, a research associate at BGI-Research, told the South China Morning Post. “But the challenges are significant because the preservation techniques at that time may not have been very good. It is hard to say.”Einstein’s brain was preserved using mid-20th-century methods, long before advances in genetic storage, making its viability uncertain. Still, the Stereo-seq V2 breakthrough signals a major step toward unlocking valuable information from old clinical archives.Breathing life into historyTraditional biospecimens are kept in formalin-fixed, paraffin-embedded blocks—cost-effective and stable for decades, but often chemically damaged. That degradation limited DNA and RNA analysis, which is crucial because DNA stores genetic information while RNA turns it into proteins.Stereo-seq V2 overcomes those barriers by improving RNA capture efficiency and using random-primed chemistry to achieve full gene-body coverage, even in degraded samples. In trials, the tool mapped RNA at single-cell resolution, identifying tumor subtypes and immune responses within old cancer tissue.Co-corresponding author Liao Sha, chief technology officer of STOmics, said the team carefully screens samples before use. “If the samples had degraded too much, we would not be able to analyse them effectively,” she said.Beyond oncology, the platform has already demonstrated its ability to simultaneously profile both host and microbial RNAs in tuberculosis studies, offering insights into how pathogens interact with immune systems over time.Expanding a precious archiveHospitals worldwide store millions of FFPE samples, often for 20 years or more. Until now, much of that genetic information was locked away by preservation damage. Li said the new method expands the pool of research material available for rare diseases.“Many rare diseases require a long time to accumulate samples,” Li said. “Now, we can effectively utilise precious samples that have been preserved over the long term.”Researchers believe the approach could lead to earlier diagnostics, more personalized cancer treatments, and retrospective studies on archived specimens. Hospitals may also explore building joint laboratories to process samples in-house, reducing risks from external transfers.While the prospect of decoding Einstein’s genius remains uncertain, the real-world applications of Stereo-seq V2 are immediate, offering scientists sharper tools to explore the biology of cancer, infection, and rare diseases locked away in tissue archives.The study was published last month in the journal Cell.
Chinese Scientists Einstein Brain Preserved Cancer Tissue RNA Mapping Spatial Transcriptomics Stereo-Seq V2
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