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the aim of our work was to study biological properties of the polymer based on pseudo-polyamino acids GluLa-DPG-PEG600, its ability to bind albumin, as well as its localization in rat body and influence on physio logical and functional state of rat kidneys and liver. We have found the ability of Glula-DpG-peG600 to bind bovine serum albumin (BSa) using electrophoresis in 5% polyacrylamide gel. Structural and functional state of the liver and kidneys of rats after injections of polymer were investigated by histological analysis of organs and determination the activities of alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, gamma-glutamyltransferase and content of cholesterol and creatinine in blood. Our results showed little toxic effect of GluLa-DPG-PEG600 on rat body. Using fluorescent microscopy we have studied polymer in complex with BSa distribution in rat body: after intravenous injection polymer are localized in kidneys and spleen, and after intramuscular – in liver and brain. It has been shown that polymer passed through the blood-brain barrier and are localized in the immune organ – spleen, indicating Glula-DpG-peG600 as a potential drug transporter.

the ukrainian biochemical journal

Characteristics of novel polymer based on pseudo-polyamino acids GluLa-DPG-PEG600: binding of albumin, biocompatibility, biodistribution and potential crossing the blood-brain barrier in rats