Spatial isoform sequencing at single-cell resolution reveals cell-type-specific spatial isoform variability in multiple brain cell types.

Single-cell resolution spatial isoform sequencing reveals cell-type-specific isoform variability in multiple brain cell types, with over 450 million barcodes analyzed.

• Why it matters: Understanding whether spatial isoform differences are due to cell-type variability or regional composition is crucial for deciphering brain function and disease mechanisms.
• What they did: Developed Spl-ISO-Seq2 and software tools to perform high-resolution long-read sequencing, applied to the adult mouse brain to compare isoform patterns across regions and cell types.
• The result: Found that many isoform signals are independent of cell-type composition, uncovering novel spatial patterns and enabling detailed isoform analysis at submicron resolution for disease research.