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A Biosynthetic Alternative to Human Amniotic Membrane for Use in Ocular Surface Surgery
Prity Sahay1, Mehri Behbehani2, Perla Filippini1
1Academic Ophthalmology, Division of Clinical Neuroscience, School of Medicine, University of Nottingham, UK.
Translational Vision Science & Technology
|May 2, 2024
Summary
The new Symatix membrane (SM) shows excellent biocompatibility and promotes rapid wound healing, making it a promising alternative to human amniotic membrane (hAM) for ocular surgeries.
Area of Science:
- Ophthalmology
- Biomaterials Science
- Cell Biology
Background:
- Fresh human amniotic membrane (hAM) is widely used in ocular surgery but has limitations.
- A biosynthetic Symatix membrane (SM) was developed as a potential replacement for hAM.
Purpose of the Study:
- To evaluate the biocompatibility of the SM with human limbus-derived epithelial cells.
- To compare the physical and biological properties of SM with hAM and freeze-dried amniotic membrane (FDAM).
Main Methods:
- Ex vivo physical property testing on human corneas.
- In vitro testing of limbal epithelial cell migration, proliferation, metabolic activity, and marker expression on SM, hAM, and FDAM.
Main Results:
- SM demonstrated surgical handleability comparable to hAM.
- Epithelial cells on SM exhibited normal morphology, stratification, and rapid wound healing within 3 days.
- SM supported cell migration, proliferation, and tight junction formation, with positive expression of key markers.
Conclusions:
- The Symatix membrane is a superior substrate for limbal epithelial cell growth and function compared to hAM and FDAM.
- SM offers a viable and potentially improved alternative to hAM for sight-restoring ocular surgeries.
