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Updated: Jun 3, 2025
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Ex Utero Culture of Mouse Embryos from Pregastrulation to Advanced Organogenesis
Published on: October 19, 2021
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Controlled Dynamic Microfluidic Culture of Murine, Bovine, and Human Embryos Improves Development: Proof-of-Concept
Jose Roberto Alegretti1,2, Andre M Da Rocha3,4, Naiara C Nogueira-de-Souza3
1Huntington-Medicina Reprodutiva, Av Republica do Libano, 529 Ibirapuera, Sao Paulo 04501-000, SP, Brazil.
Cells
|January 8, 2025
Summary
Dynamic microfluidic culture enhances early embryo development in mice, cattle, and humans compared to static methods. This improved development, observed across multiple species, suggests potential for increased pregnancy rates.
Area of Science:
- Reproductive Biology
- Developmental Biology
- Bioengineering
Background:
- Traditional preimplantation embryo culture uses static fluid environments.
- The potential benefits of dynamic fluid environments, mimicking the fallopian tube, for mammalian embryo development are not fully understood.
Purpose of the Study:
- To evaluate if controllable dynamic microfluidic culture enhances preimplantation embryo development in mice, cattle, and humans compared to static culture.
- To assess the impact of dynamic culture on key embryo development metrics.
Main Methods:
- A prospective randomized controlled trial comparing static versus dynamic microfluidic culture for mouse, bovine, and human zygotes.
- Outcome measures included embryo cleavage, cellular fragmentation, apoptosis, and blastocyst conversion rates.
- Analysis of mouse placental imprinted gene expression in embryos cultured in vivo, statically, and dynamically.
Main Results:
- Dynamic microfluidic culture significantly improved embryo development in mice and cattle.
- Human sibling zygotes cultured dynamically showed increased blastomere count, reduced fragmentation/apoptosis, and higher blastocyst conversion rates.
- Mouse placental imprinted gene expression differed significantly between in vivo, static, and dynamic culture groups.
Conclusions:
- Dynamic microfluidic culture significantly improves preimplantation embryo development across species, independent of media, temperature, or gas conditions.
- Observed cellular improvements indicate potential for higher pregnancy rates in various applications, including assisted reproduction and conservation efforts.
