Testing, which was performed as part of a partnership with the National Research Council's Advanced Materials Division, involved coating of several commonly utilized device materials, including nylon, polypropylene (PPE), and polyethylene terephthalate (PET) nonwoven scaffolds with hECM using several common coating methods. The hECM-coated and uncoated scaffolds were then surgically implanted in the subcutaneous space of SCID mice and histological samples of excised implants were assessed for inflammatory response, cellular infiltration, foreign body giant cells and capsule formation.
"Coating polymers with a naturally-produced, all-human ECM masks the foreign device material and offers a physiological surface which supports healthy tissue infiltration and interaction," said Dr. Michael Zimber, Director of Applied Research at Histogen. "The hECM-coated polymers promoted a two-fold increase in normal cell proliferation as compared to uncoated polymers, as well as causing a significant reduction in the host inflammatory and fibrotic response to surgically implanted polymers."
"Coating Polymers with a Human Extracellular Matrix Significantly Improves Implant Biocompatibility" will be presented by Dr. Zimber at the ASAIO Annual Conference, taking place May 27-29, 2010 in Baltimore.
Histogen, launched in 2007, seeks to redefine regenerative med
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