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Related Experiment Video

Updated: May 19, 2026

Studying the Effects of Matrix Stiffness on Cellular Function using Acrylamide-based Hydrogels
10:19

Studying the Effects of Matrix Stiffness on Cellular Function using Acrylamide-based Hydrogels

Published on: August 10, 2010

Effect of substrate stiffness on early mouse embryo development.

Kevin S Kolahi1, Annemarie Donjacour, Xiaowei Liu

  • 1Department of Obstetrics Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, California, United States of America.

Plos One
|August 4, 2012
PubMed
Summary

Early embryos are sensitive to the mechanical properties of their environment. Culturing embryos on a softer, collagen-based material improved development and post-implantation growth compared to standard plastic dishes.

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Area of Science:

  • Biophysics
  • Developmental Biology
  • Cell Biology

Background:

  • Cells respond to biophysical cues from their microenvironment, influencing cellular behaviors.
  • The mechanical properties of the uterine environment are largely unknown and differ significantly from standard embryo culture conditions.

Purpose of the Study:

  • To investigate the sensitivity of early pre-implantation mouse embryos to mechanical cues, specifically the elasticity of the culture environment.
  • To develop a novel embryo culture system for precisely controlling the mechanical properties of the embryonic environment.

Main Methods:

  • Developed a new embryo culture system using polydimethyl-siloxane (PDMS) or 3D type I collagen gels (1 kPa stiffness) to mimic in vivo uterine elasticity.
  • Compared mouse embryo development (percent development, hatching frequency, cell number) on collagen gels (Col-1k group) versus standard polystyrene petri dishes (PD, 1 GPa stiffness).

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Simple Polyacrylamide-based Multiwell Stiffness Assay for the Study of Stiffness-dependent Cell Responses
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Simple Polyacrylamide-based Multiwell Stiffness Assay for the Study of Stiffness-dependent Cell Responses

Published on: March 25, 2015

Related Experiment Videos

Last Updated: May 19, 2026

Studying the Effects of Matrix Stiffness on Cellular Function using Acrylamide-based Hydrogels
10:19

Studying the Effects of Matrix Stiffness on Cellular Function using Acrylamide-based Hydrogels

Published on: August 10, 2010

Simple Polyacrylamide-based Multiwell Stiffness Assay for the Study of Stiffness-dependent Cell Responses
07:45

Simple Polyacrylamide-based Multiwell Stiffness Assay for the Study of Stiffness-dependent Cell Responses

Published on: March 25, 2015

  • Transferred embryos to recipient females to assess post-implantation development and placental growth.

    • Main Results:

    • Embryos cultured on Col-1k exhibited significantly higher frequencies of development to the 2-cell, blastocyst, and hatching blastocyst stages compared to those on PD.
    • Embryos on Col-1k had a greater number of trophectodermal cells (TE) than controls.
    • Post-implantation analysis showed similar fetal numbers but larger placentas in the Col-1k group, indicating a sustained effect of the preimplantation environment.

    Conclusions:

    • The mechanical properties of the preimplantation microenvironment significantly influence early embryonic development.
    • Softer, more physiologically relevant culture environments can enhance both pre- and post-implantation growth.
    • These findings highlight the importance of biophysical cues in reproductive biology and suggest potential improvements for assisted reproductive technologies.