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Updated: Jan 11, 2026
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ROS Live Cell Imaging During Neuronal Development
Published on: February 9, 2021
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Capturing aberrant cell behaviors producing defects in human embryos via live imaging
Hiroki Akizawa1, Ana Domingo-Muelas1, Maria Pardo-Figuerez2
1Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
Science Advances
|November 19, 2025
Summary
Errors during mitosis and cytokinesis cause morphological defects in human embryos, leading to developmental failures. Live imaging reveals specific cellular behaviors producing these defects in real time.
Area of Science:
- Reproductive medicine
- Developmental biology
- Cell biology
Background:
- In vitro fertilization (IVF) and early human development studies are crucial.
- Human preimplantation embryos frequently exhibit morphological defects impacting development and implantation.
Purpose of the Study:
- To investigate the real-time mechanisms underlying morphological defects in human embryos.
- To identify specific cellular errors contributing to developmental failures.
Main Methods:
- Live-embryo imaging techniques.
- Computational analysis of cellular dynamics.
- Observation of mitotic and cytokinesis processes.
Main Results:
- Documented various mitotic errors: lagging chromosomes, multipolar spindles, and chromosome scattering.
- Observed abnormal cytokinesis leading to binucleated and enucleated cells.
- Identified disrupted mitotic progression causing blebbing and fragmentation.
Conclusions:
- Aberrant cell behaviors during mitosis and cytokinesis are primary drivers of morphological defects.
- These cellular errors significantly contribute to developmental failures in human embryos.
- Real-time imaging provides critical insights into early human embryo development.
