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Updated: Jun 7, 2025
Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging
Published on: March 31, 2022
Spatiotemporal modeling of molecular holograms
Xiaojie Qiu1, Daniel Y Zhu2, Yifan Lu3
1Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA; Basic Sciences and Engineering Initiative, Betty Irene Moore Children's Heart Center, Lucile Packard Children's Hospital, Stanford, CA, USA; Department of Computer Science, Stanford University, Stanford, CA 94305, USA; Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA.
Spateo, a new 3D modeling framework, quantifies spatiotemporal dynamics in mouse embryogenesis. This tool reveals multi-level biological insights and molecular programs driving organ development over time.
Area of Science:
- Developmental Biology
- Computational Biology
- Genomics
Background:
- Understanding congenital diseases requires quantifying spatiotemporal dynamics during embryogenesis.
- Existing methods lack the scalability and precision to model complex 3D developmental processes.
Purpose of the Study:
- To develop and apply a novel 3D spatiotemporal modeling framework, Spateo, for comprehensive analysis of embryogenesis.
- To enable multi-level biological discovery from subcellular to whole organ scales.
Main Methods:
- Developed Spateo, a scalable 3D spatiotemporal modeling framework with partial, non-rigid alignment and mesh correction.
- Applied Spateo to a 3D mouse embryogenesis atlas (E9.5-E11.5) of eight million cells.
- Introduced digitization methods, morphometric vector fields, and spatial differential geometry for biological analysis.
Main Results:
- Created molecular holograms of whole embryos, capturing complex 3D structures and emergent features.
- Identified expression gradients along orthogonal axes of 3D structures, including secondary organizers like the midbrain-hindbrain boundary (MHB).
- Dissected 3D signaling landscapes, including the zona limitans intrathalamica (ZLI), and unveiled molecular programs for asymmetrical organogenesis.
Conclusions:
- Spateo provides a powerful platform for dissecting the molecular basis of organogenesis and developmental processes in 3D.
- The framework bridges macroscopic developmental changes with underlying molecular dynamics, advancing the study of organ ecology.
- This approach facilitates the investigation of congenital diseases by providing unprecedented insights into spatiotemporal developmental dynamics.
