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Related Experiment Video

Updated: Jun 24, 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

Fabricating Tunable Polyacrylamide Hydrogels To Study Matrix Stiffness Effects On Stem Leydig Cells.

Moxuan Li1, Yixiang Chen1, Xiangyu Li2

  • 1Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University; School of Medicine, Shenzhen Campus of Sun Yat-sen University.

Journal of Visualized Experiments : Jove
|June 22, 2026
PubMed
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This study details a method for creating tunable polyacrylamide hydrogels to mimic the testicular environment. These gels help investigate how matrix stiffness affects stem Leydig cell function and testosterone production.

Area of Science:

  • Mechanobiology
  • Reproductive Biology
  • Biomaterials Science

Background:

  • Extracellular matrix (ECM) stiffness is a critical regulator of stem cell behavior.
  • Pathological increases in matrix stiffness during aging disrupt stem Leydig cell (SLC) homeostasis, leading to decreased testosterone production.

Purpose of the Study:

  • To present a detailed protocol for fabricating polyacrylamide (PA) hydrogels with tunable stiffness.
  • To model the testicular microenvironment in vitro for studying SLCs.
  • To enable systematic investigation of substrate stiffness effects on SLCs.

Main Methods:

  • Fabrication of PA hydrogels with stiffness ranging from 1-100 kPa.
  • Utilizing precise mixing of acrylamide/bis-acrylamide and gel swelling equilibration.

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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: Jun 24, 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

  • Surface activation with Sulfo-SANPAH and collagen coating for SLC adhesion and culture.

    • Main Results:

    • Reproducible casting of gels across a wide stiffness range (1-100 kPa).
    • Optimized formulations and troubleshooting guidance provided for gel fabrication.
    • Demonstrated utility for culturing SLCs and investigating stiffness-dependent functions.

    Conclusions:

    • The developed PA hydrogel system provides a robust platform for studying the impact of substrate stiffness on SLCs in vitro.
    • This model system facilitates research in reproductive biology and mechanobiology for other cell types.
    • It also offers potential for screening therapeutics targeting stiffness-related cellular dysfunction.