Spatial transcriptomic profiling of isolated microregions in tissue sections utilizing laser-induced forward transfer

PLoS One. 2024 Jul 25;19(7):e0305977. doi: 10.1371/journal.pone.0305977. eCollection 2024.

Abstract

Profiling gene expression while preserving cell locations aids in the comprehensive understanding of cell fates in multicellular organisms. However, simple and flexible isolation of microregions of interest (mROIs) for spatial transcriptomics is still challenging. We present a laser-induced forward transfer (LIFT)-based method combined with a full-length mRNA-sequencing protocol (LIFT-seq) for profiling region-specific tissues. LIFT-seq demonstrated that mROIs from two adjacent sections could reliably and sensitively detect and display gene expression. In addition, LIFT-seq can identify region-specific mROIs in the mouse cortex and hippocampus. Finally, LIFT-seq identified marker genes in different layers of the cortex with very similar expression patterns. These genes were then validated using in situ hybridization (ISH) results. Therefore, LIFT-seq will be a valuable and efficient technique for profiling the spatial transcriptome in various tissues.

MeSH terms

  • Animals
  • Cerebral Cortex / metabolism
  • Gene Expression Profiling* / methods
  • Hippocampus / metabolism
  • In Situ Hybridization / methods
  • Lasers
  • Mice
  • RNA, Messenger / genetics
  • RNA, Messenger / metabolism
  • Sequence Analysis, RNA / methods
  • Transcriptome*

Substances

  • RNA, Messenger

Grants and funding

This research was supported by the National Natural Science Foundation of China (81827901). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.