The abstract is read at the publisher; the summary is JClub's.
Single-cell RNA-seq of an HD-positive human fetal striatum identified 2,032 differentially expressed genes across nine cellular clusters, with pathway dysregulation varying by cluster.
- Why it matters: HD is linked to an HTT CAG-repeat expansion present from conception, yet authentic developing HD-positive human striatal tissue has lacked characterization.
- What they did: The study compared an age- and sex-matched fetal HD-positive striatal sample (CAG-repeat lengths 16, 49, 16) to a control (16, 17) using single-cell RNA sequencing, then contrasted fetal signatures with public postmortem adult HD-positive brain datasets.
- The result: Gene expression changes substantially overlapped between fetal and adult HD-positive striatal tissues, though not across all profiles and with some reversed, implying early molecular HD pathology features.
The findingWhy it mattersWhat they didThe result
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