Human Amniotic Membrane: Clinical Uses, Patents And Marketed Products
Florelle Gindraux, Romain Laurent, Laurence Nicod, Benoit de Billy, Christophe Meyer, Narcisse Zwetyenga, Luc Wajszczak, Patrick Garbuio and Laurent Obert
Affiliation: Orthopaedic and Traumatology Surgery Service, University Hospital of Besancon, Bd Alexandre Fleming, 25030 Besancon Cedex, France.
Keywords: Clinical uses, economical aspects, growth factors, human amniotic membrane (hAM), marketed products, patents,
processing, tissue engineering.
In the past 20 years, human amniotic membrane (hAM) has become widely recommended as an ophthalmic
surgical patch, and as a substrate for stem cell tissue equivalents for ocular surface reconstruction. HAM reduces ocular
surface scarring and inflammation, and enhances epithelialization. In addition, it shows limited immunogenicity and some
anti-microbial properties. Thanks to these properties, hAM has been also used in wound healing, especially for burns and
ulcers. Since its first clinical applications, hAM has been used for other indications, such as oral and maxillofacial, earnose-
throat, gynaecological and orthopaedic surgeries. This review will describe: (i) past and current clinical uses of
hAM; (ii) accepted processing methods, including preparation, preservation, sterilization and de-epithelialization and their
impact on the properties of hAM, especially growth factor release, cell viability and immunological properties; (iii) its applications
in tissue engineering, namely as scaffold or carrier of biological molecules. Economical aspects are presented at
the end of this review. Existing patents are reported for each section and existing marketed products are listed. Patents,
products and ongoing clinical trials, were identified by electronic searches on the internet in January 2013. In conclusion,
in view of published data, hAM seems to have real market potential in regenerative medicine, in particular in emerging
fields such as oral and maxillofacial, ear-nose-throat, gynaecological and orthopaedic surgery.
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