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  1. Home
  3. Single-cell Annotation And Localization Via Integrating Spatial Transcriptomics Maps The Mouse Ocular Atlas And Rao Dynamics.
  1. Home
  3. Single-cell Annotation And Localization Via Integrating Spatial Transcriptomics Maps The Mouse Ocular Atlas And Rao Dynamics.

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En face Cryosectioning of Mouse Retina for High-dimensional Spatial Molecular Analysis
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En face Cryosectioning of Mouse Retina for High-dimensional Spatial Molecular Analysis

Published on: July 8, 2025

Single-Cell Annotation and Localization via Integrating Spatial Transcriptomics Maps the Mouse Ocular Atlas and RAO

Chen Du1, Yinming Li1,2, Ziyue Li1

  • 1College of Life Sciences, TaiKang Center for Life and Medical Sciences, Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|June 1, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

Researchers developed a new pipeline, ASCAL, to map eye cells in 3D. This tool reveals immune cell changes in the retina during retinal artery occlusion (RAO), offering insights into this blinding condition.

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Published on: August 4, 2018

Related Experiment Videos

En face Cryosectioning of Mouse Retina for High-dimensional Spatial Molecular Analysis
08:57

En face Cryosectioning of Mouse Retina for High-dimensional Spatial Molecular Analysis

Published on: July 8, 2025

Where You Cut Matters: A Dissection and Analysis Guide for the Spatial Orientation of the Mouse Retina from Ocular Landmarks
08:42

Where You Cut Matters: A Dissection and Analysis Guide for the Spatial Orientation of the Mouse Retina from Ocular Landmarks

Published on: August 4, 2018

Area of Science:

  • Ophthalmology
  • Genomics
  • Computational Biology

Background:

  • Retinal artery occlusion (RAO) is a critical condition requiring detailed cellular understanding for effective treatments.
  • Current single-cell RNA sequencing (scRNA-seq) lacks spatial information, while spatial transcriptomics faces challenges with cell segmentation and transcript capture.
  • Understanding the precise location and state of cells in the eye is crucial for developing targeted therapies for blinding diseases.

Purpose of the Study:

  • To develop and validate a computational pipeline, ASCAL, for automated cell annotation and spatial localization using integrated transcriptomic data.
  • To construct a high-resolution spatial cell atlas of the entire mouse eye.
  • To investigate the spatial cellular dynamics and pathological mechanisms underlying retinal artery occlusion (RAO) at single-cell resolution.

Main Methods:

  • Integration of SeekSpace (single-nucleus resolution) for cell annotation and Stereo-seq (uniform coverage) for spatial localization within the ASCAL pipeline.
  • Application of ASCAL to large-scale scRNA-seq datasets for automated annotation and localization.
  • Construction of a whole-eye spatial cell atlas by mapping cell types across the ciliary body and retina.
  • Validation of findings using immunofluorescence staining and RNAscope assays.

Main Results:

  • ASCAL successfully enabled automated annotation and localization of cells across large spatial transcriptomic datasets.
  • A comprehensive mouse whole-eye single-cell spatial atlas was generated, detailing cell distribution in the retina and ciliary body.
  • Pronounced spatial immune activation was identified in the ganglion cell layer (GCL) of the RAO model.
  • A specific subcluster of active Rod cells was found to be selectively depleted in RAO, with validation of its peripheral localization and loss.

Conclusions:

  • The ASCAL pipeline provides an effective strategy for integrating multiple spatial transcriptomics techniques to overcome limitations of individual methods.
  • The study presents a valuable whole-eye spatial cell atlas, offering unprecedented resolution for eye research.
  • Novel insights into RAO pathogenesis were uncovered, highlighting spatial immune responses and rod cell dynamics, paving the way for new therapeutic strategies.