MapOmics is a state-of-the-art spatial transcriptomics platform dedicated to high-resolution mapping of gene expression across tissues using Slide-seq technology. This method enables the spatial reconstruction of the transcriptome at near-single-cell resolution while preserving the native tissue architecture.

MapOmics is a partner platform within the national Spatial Cell ID EquipEx+ initiative (https://spatial-cell-id.ens-lyon.fr), coordinated by ENS de Lyon, and contributes to the development of next-generation spatial omics capabilities for the French research community.

Technology Overview
Slide-seq operates by transferring RNA from freshly frozen tissue slices onto barcoded beads affixed to a slide. Each bead’s unique DNA barcode corresponds to a known spatial coordinate, enabling transcriptomic data to be spatially resolved after sequencing. The method permits high-throughput, unbiased profiling of gene expression while retaining the original architecture of the tissue. Tissue sections can also undergo immunolabeling for protein co-detection, with resulting images integrated with transcriptomic data to generate 3D molecular maps of tissue structure and function.

Image derived from the pioneering work of Macosko’s team at the Broad Institute (Rodriques et al., 2019, Science), the Slide-seq technology deployed by MapOmics has been refined to achieve enhanced resolution—from 0.6 µm to 2.5 µm—optimizing RNA capture and single-cell level sequencing.

Applications
MapOmics supports a wide range of research applications, including:

  • Spatial gene expression profiling: Localize active gene regions across tissue landscapes.
  • Tissue heterogeneity analysis: Characterize cellular diversity in complex organs.
  • Neuroscience: Explore spatial gene activity in brain circuits and neurodevelopment.
  • Developmental biology: Track gene expression patterns during organogenesis.

Instrumentation

The platform is equipped with a Leica MICA slide scanner, offering high-resolution and multimodal imaging capabilities:

  • Acquisition modes: wide-field, deconvolution, high-resolution, Z-stacks.
  • Objectives: 10x/0.45, 20x/0.8, and 40x/0.95.
Pierre Savatier
DR1
Maelle Givelet
IE
Hong Thu Pham
PhD student