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Utilization of biocompatible hydrogels based on 2-hydroxyethylmethacrylate to bridge the spinal cord lesion
Lesný, Petr ; Syková, Eva (advisor) ; Rokyta, Richard (referee) ; Hampl, Aleš (referee)
Utilization of biocompatible hydrogels based on 2-hydroxyethylmethacrylate to bridge the spinal cord lesion MUDr. Petr Lesný Biocompatible hydrogels based on copolymers of 2-hydroxyethylmethacrylate are suitable for implantation into a central nervous tissue lesion. Our prepared hydrogels were macroporous with predominantly communicating pores, and their mechanical properties were similar to those of spinal cord tissue. After we confirmed their biocompatibility by the growth of mesenchymal stem cells and determined the hydrogel diffusion properties, we implanted the prepared hydrogels into acute spinal cord injury in laboratory rats and studied the process of spinal cord tissue regeneration within the implants. When the hydrogels were implanted in subacute phase of spinal cord injury, we observed favorable impact on the spinal cord tissue regeneration and reduction of pseudocyst formation. Using histological and immunohistochemical methods, we observed the ingrowth of central nervous tissue elements (connective tissue, vessels, neurofilaments, Schwann cells, astrocyte processes) into the hydrogels implanted into the spinal cord hemisections. We have found that copolymerization with a positively charged ammonium salt increases the adhesion of the cells to the hydrogels in vitro and the ingrowth of...
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