Logo MSM

Call: +1.631.470.9640
Mon - Fri 10:00 am - 02:00 pm EST

Contact Us

Logo MSM Logo MSM Logo MSM

01 October 2010

A new drug form of blood coagulation factor IX: Red blood cell-entrapped factor IX

Elena Ivanovna SinauridzeABCDEF, Tatyana Alekseevna VuimoBF, Elena Viktorovna KulikovaB, Igor Igorevich ShmyrevB, Fazoil Inoyatovich AtaullakhanovAG

Med Sci Monit 2010; 16(10): PI19-26 :: ID: 881179


Background: Deficiency of factor IX causes hemophilia B, and primary treatment for hemophilia B is based on recurrent infusions of deficient factor IX. Frequent infusions of foreign protein diminish patients’ quality of life, and increase the risk of development of immune reaction. We entrapped factor IX into erythrocytes-carriers (pharmacocytes) to prolong the drug’s circulation life time, and to prevent immune response to the drug.
Material/Methods: Factor IX was biotynilated by standard method and then loaded aseptically into volunteers’ erythrocytes with our gentle procedure of stepwise dialysis. The comparison of pharmacokinetics for free and autologous erythrocytes-entrapped biotinylated factor IX (FIXbiot) was done. Concentrations of factor IXbiot in plasma and lysates of erythrocytes were quantitatively assessed with a sandwich ELISA.
Results: Stepwise dialysis method allowed stable loading of factor IXbiot into erythrocytes. Elimination of the loaded erythrocytes followed the first-order kinetics. The mean half-time of elimination for free FIXbiot was 8.8±5.6 hours, and for RBC-entrapped factor IXbiot 73.9±16.0 hours. Elimination of FIXbiot from plasma did not follow the first order kinetics because this factor concentration depended not only on the rate of its elimination, but also on the rate of factor appearance in plasma as a result of pharmackocytes’ degradation. A rough estimate of the feasibility of the approach was done.
Conclusions: The life time of the erythrocyte-based form of FIXbiot in the circulation is significantly (5–10 times) prolonged compared with its free form, suggesting that this form has potential clinical applications.

Keywords: Kinetics, Hemophilia B - therapy, Feasibility Studies, Factor IX - therapeutic use, Erythrocytes, Drug Carriers, Biotinylation, Adult, Technology, Pharmaceutical, young adult


This Week Editorial

20 September 2021 : Editorial

Editorial: Autoantibodies to Components of the Immune System, Including Type 1 Interferons, and the Risk of Severe COVID-19

Dinah V. Parums
Science Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.934766

Med Sci Monit 2021; 27:e934766

Coronavirus/Covid 19

22 September 2021 : Editorial

Editorial: Global Regulatory Initiatives Deliver Accelerated Approval of the First Bispecific Therapeutic M...

Med Sci Monit In Press; DOI: 10.12659/MSM.934854  

08 September 2021 : Clinical Research

Acceptance of COVID-19 Vaccination and Its Associated Factors Among Cancer Patients Attending the Oncology ...

Med Sci Monit In Press; DOI: 10.12659/MSM.932788  

16 July 2021 : Review article

Silent Hypoxemia in Patients with COVID-19 Pneumonia: A Review

Med Sci Monit In Press; DOI: 10.12659/MSM.930776  

09 July 2021 : Database Analysis

A Simple Clinical Prediction Tool for COVID-19 in Primary Care with Epidemiology: Temperature-Leukocytes-CT...

Med Sci Monit In Press; DOI: 10.12659/MSM.931467  

In Press

24 Sep 2021 : Clinical Research

A Single-Center Study of a Resin Inlay Dental Implant-Fixed Prosthesis for Closing Proximal Contact Loss in...

Med Sci Monit In Press; DOI: 10.12659/MSM.933809  

24 Sep 2021 : Database Analysis

Relationships Between Obstructive Sleep Apnea and Cardiovascular Disease: A Bibliometric Analysis (2010-2021)

Med Sci Monit In Press; DOI: 10.12659/MSM.933448  

24 Sep 2021 : Database Analysis

A Statistical Prediction Model for Survival After Kidney Transplantation from Deceased Donors

Med Sci Monit In Press; DOI: 10.12659/MSM.933559  

24 Sep 2021 : Clinical Research

Value of Ocular Endoscopy in Extraction of Intraocular Foreign Bodies of Cilia in Patients with Open Ocular...

Med Sci Monit In Press; DOI: 10.12659/MSM.932970  

Most Viewed

20 Mar 2020 : Clinical Research

Social Capital and Sleep Quality in Individuals Who Self-Isolated for 14 Days During the Coronavirus Diseas...

DOI :10.12659/MSM.923921

Med Sci Monit 2020; 26:e923921

15 Apr 2020 : Clinical Research

Psychological Impact and Coping Strategies of Frontline Medical Staff in Hunan Between January and March 20...

DOI :10.12659/MSM.924171

Med Sci Monit 2020; 26:e924171

05 May 2020 : Review article

An Evidence Based Perspective on mRNA-SARS-CoV-2 Vaccine Development

DOI :10.12659/MSM.924700

Med Sci Monit 2020; 26:e924700

26 Apr 2020 : Clinical Research

Comparison of Prevalence and Associated Factors of Anxiety and Depression Among People Affected by versus P...

DOI :10.12659/MSM.924609

Med Sci Monit 2020; 26:e924609

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750