Amniotic Membrane and Amniotic Epithelial Cell Culture.

Area of Science:

• Regenerative Medicine
• Stem Cell Biology
• Tissue Engineering

Background:

• Amniotic membrane (AM) and ovine amniotic epithelial cells (oAECs) possess significant therapeutic potential in regenerative medicine due to their extracellular matrix and bioactive molecules.
• oAECs are placental stem cells with notable regenerative and immunomodulatory capabilities, making them valuable for preclinical studies in translational animal models like sheep.
• Standardization of cultural practices is crucial for maintaining the integrity and native properties of AM and oAECs, thereby enhancing their in vivo therapeutic efficacy.

Purpose of the Study:

• To develop and describe an improved ovine amniotic epithelial cell (oAEC) culture protocol that maintains their epithelial phenotype after in vitro amplification.
• To introduce an innovative in vitro culture protocol for amniotic membrane (AM) that prolongs tissue integrity and biological properties.
• To enable the collection of stable conditioned media enriched with immunomodulatory factors from both cultured oAECs and AM for cell-free applications.

Main Methods:

• Development of a standardized in vitro culture protocol for ovine amniotic epithelial cells (oAECs) focusing on phenotype preservation.
• Design of an innovative in vitro culture system for ovine amniotic membrane (AM) to maintain tissue integrity and biological activity.
• Utilization of these protocols to generate enriched immunomodulatory secretomes for cell-free regenerative medicine.

Main Results:

• The improved oAEC culture protocol successfully preserved the native epithelial phenotype even after in vitro expansion.
• The innovative AM in vitro culture protocol effectively prolonged the integrity and biological properties of the amniotic membrane.
• Stable conditioned media enriched with immunomodulatory factors were successfully collected using the developed protocols.

Conclusions:

• Standardized culture protocols for oAECs and AM are essential for maximizing their therapeutic potential in regenerative medicine.
• These optimized protocols support the development of effective cell-free regenerative medicine strategies using immunomodulatory secretomes.
• The findings contribute to advancing the clinical application of AM-derived therapies by ensuring the quality and consistency of the biological materials.