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Barritault Denis

University Paris Est Creteil, France

Title: RGTA based matrix therapy, an innovative solution to heal after acute or chronic tissue injury: From basic science to patient

Biography

Biography: Barritault Denis

Abstract

Extra cellular matrix (ECM) microenvironment regulates locally our continuous ability to replace dead cells by new cells. This central law of all living is known as tissue homeostasis. Heparan sulfates (HS) are key elements of the ECM scaffold that store, protect and position various cell communication peptides (CCP) in the cellular microenvironment. HS plays a pivotal role in the regulation of the bioavailability of CCP, cell proliferation, migration and differentiation required for tissue regeneration. Tissue injury will lead to destruction of cells and surrounding ECM. CCP released by inflammatory and circulating cells can then promote tissue repair, but with a loss of tissue quality, leaving scars or fibrosis. We have engineered biodegradable nano-polysaccharide mimicking HS, named RGTA for ReGeneraTing Agent. Introduced at the site of injury, RGTA will bind to the matrix proteins of the damaged ECM, and to the CCP produced by healthy neighboring cells, thereby restoring the ECM microenvironment and conditions for tissue homeostasis. This matrix therapy approach has considerably improved the quality of healing in various animal models with reduction or absence of fibrosis resulting in a real regeneration process. The RGTA technology has been validated in clinics and over hundred thousands of patients treated both for corneal and skin ulcers with no adverse effect. The presentation will describe the fundamental aspect and the mode of action of the RGTA technology and illustrate in many surgical indication, the clinical results of matrix therapy RGTA based products and discs sites potential for more application in acute surgery.