Journal
CLINICAL AND APPLIED THROMBOSIS-HEMOSTASIS
Volume 16, Issue 2, Pages 161-169Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/1076029608329580
Keywords
aptamer; coagulation; kallikrein; factor XII; complement; inflammation
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One class of oligonucleotides with a high potential for use in medical applications is short nucleic acids, widely known as aptamers. Although several aptamers are already being used clinically, there are very few studies dealing with the impact aptamers have on the hemostatic system. In this study, we have performed a comprehensive evaluation of the hemostatic system including coagulation, platelets, complement, and inflammatory activation by using different aptamer concentrations and fresh human whole blood in a well-established flow model. We found that single-stranded aptamers did not have a negative influence on platelets, complement, or inflammation but were able to activate factor XII, kallikrein, and prothrombin in a concentration-dependent manner. Consequently, the influence of aptamers on the coagulation system should be taken into consideration before the use of any aptamer-based drugs in patients.
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