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Related Experiment Video

Updated: Jan 22, 2026

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Human Amniotic Membrane Procurement Protocol and Evaluation of a Simplified Alkaline Decellularization Method.

David A de la Garza Kalife1, Antonio Rojas Murillo1, Rodolfo Franco Marquez2

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Methods and Protocols
|January 21, 2026
PubMed
Summary

A simplified alkaline method offers practical amniotic membrane (AM) decellularization, reducing cost and time. However, detergent-based methods better preserve collagen and extracellular matrix (ECM) structure for regenerative medicine applications.

Keywords:
amniotic membranedecellularizationextracellular matrix preservation

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Area of Science:

  • Regenerative Medicine
  • Biomaterials Science
  • Tissue Engineering

Background:

  • Amniotic membrane (AM) is valuable in regenerative medicine due to its biocompatibility and extracellular matrix (ECM).
  • Effective decellularization is crucial to reduce immunogenicity while maintaining tissue architecture.
  • Standardizing AM processing and evaluating decellularization methods are key for clinical translation.

Purpose of the Study:

  • To compare a simplified alkaline decellularization protocol with a conventional detergent-alkaline method for human AM.
  • To assess the practicality, histological integrity, and collagen preservation of each method.
  • To determine the optimal method for AM processing based on efficiency and structural integrity.

Main Methods:

  • Human AM was obtained and processed using either a simplified alkaline or a conventional detergent-alkaline method.
  • Histological analysis included hematoxylin eosin and Masson's trichrome staining.
  • Quantification of nuclear content and collagen integrity was performed.

Main Results:

  • The alkaline method achieved significant nuclear clearance but showed partial persistence of cellular structures.
  • The detergent method resulted in complete morphological decellularization with slightly higher residual nuclear signal.
  • Detergent-based processing preserved collagen intensity closer to native tissue compared to the alkaline method (p < 0.001).

Conclusions:

  • The simplified alkaline method is a practical, cost-effective, and time-efficient approach for AM decellularization.
  • This method, however, may cause partial alteration of the ECM.
  • Detergent-based methods are preferable when optimal structural preservation of AM is required for regenerative medicine.