PMID- 25781030 OWN - NLM STAT- MEDLINE DCOM- 20160216 LR - 20200306 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 10 IP - 3 DP - 2015 TI - Nonclinical evaluation of novel cationically modified polysaccharide antidotes for unfractionated heparin. PG - e0119486 LID - 10.1371/journal.pone.0119486 [doi] LID - e0119486 AB - Protamine, the only registered antidote of unfractionated heparin (UFH), may produce a number of adverse effects, such as anaphylactic shock or serious hypotension. We aimed to develop an alternative UFH antidote as efficient as protamine, but safer and easier to produce. As a starting material, we have chosen generally non-toxic, biocompatible, widely available, inexpensive, and easy to functionalize polysaccharides. Our approach was to synthesize, purify and characterize cationic derivatives of dextran, hydroxypropylcellulose, pullulan and gamma-cyclodextrin, then to screen them for potential heparin-reversal activity using an in vitro assay and finally examine efficacy and safety of the most active polymers in Wistar rat and BALB/c mouse models of experimentally induced arterial and venous thrombosis. Efficacy studies included the measurement of thrombus formation, activated partial thromboplastin time, bleeding time, and anti-factor Xa activity; safety studies included the measurement of hemodynamic, hematologic and immunologic parameters. Linear, high molecular weight dextran substituted with glycidyltrimethylammonium chloride groups at a ratio of 0.65 per glucose unit (Dex40-GTMAC3) is the most potent and the safest UFH inhibitor showing activity comparable to that of protamine while possessing lower immunogenicity. Cationic polysaccharides of various structures neutralize UFH. Dex40-GTMAC3 is a promising and potentially better UFH antidote than protamine. FAU - Kalaska, Bartlomiej AU - Kalaska B AD - Department of Pharmacodynamics, Medical University of Bialystok, Bialystok, Poland. FAU - Kaminski, Kamil AU - Kaminski K AD - Faculty of Chemistry, Jagiellonian University, Krakow, Poland. FAU - Sokolowska, Emilia AU - Sokolowska E AD - Department of Pharmacodynamics, Medical University of Bialystok, Bialystok, Poland. FAU - Czaplicki, Dominik AU - Czaplicki D AD - Department of Cell Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland. FAU - Kujdowicz, Monika AU - Kujdowicz M AD - Faculty of Chemistry, Jagiellonian University, Krakow, Poland. FAU - Stalinska, Krystyna AU - Stalinska K AD - Department of Cell Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland. FAU - Bereta, Joanna AU - Bereta J AD - Department of Cell Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland. FAU - Szczubialka, Krzysztof AU - Szczubialka K AD - Faculty of Chemistry, Jagiellonian University, Krakow, Poland. FAU - Pawlak, Dariusz AU - Pawlak D AD - Department of Pharmacodynamics, Medical University of Bialystok, Bialystok, Poland. FAU - Nowakowska, Maria AU - Nowakowska M AD - Faculty of Chemistry, Jagiellonian University, Krakow, Poland. FAU - Mogielnicki, Andrzej AU - Mogielnicki A AD - Department of Pharmacodynamics, Medical University of Bialystok, Bialystok, Poland. LA - eng PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150317 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Antidotes) RN - 0 (Cations) RN - 0 (Heparin Antagonists) RN - 0 (Polymers) RN - 0 (Polysaccharides) RN - 0 (Protamines) RN - 9005-49-6 (Heparin) SB - IM MH - Animals MH - Antidotes/*pharmacology MH - Blood Pressure/drug effects MH - Cations/*chemistry MH - Female MH - Heparin/*chemistry/metabolism MH - Heparin Antagonists/*pharmacology MH - Immunization MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Partial Thromboplastin Time MH - Polymers/chemistry/*pharmacology MH - Polysaccharides/chemistry MH - Protamines/metabolism MH - Rats MH - Rats, Wistar MH - Thrombosis/*drug therapy/*immunology/metabolism PMC - PMC4362941 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2015/03/18 06:00 MHDA- 2016/02/18 06:00 PMCR- 2015/03/17 CRDT- 2015/03/18 06:00 PHST- 2014/10/16 00:00 [received] PHST- 2015/01/13 00:00 [accepted] PHST- 2015/03/18 06:00 [entrez] PHST- 2015/03/18 06:00 [pubmed] PHST- 2016/02/18 06:00 [medline] PHST- 2015/03/17 00:00 [pmc-release] AID - PONE-D-14-37109 [pii] AID - 10.1371/journal.pone.0119486 [doi] PST - epublish SO - PLoS One. 2015 Mar 17;10(3):e0119486. doi: 10.1371/journal.pone.0119486. eCollection 2015.