Preparation method of hepatitis vaccine and its use
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE THIRD AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIV OF PLA
- Publication Date
- 2006-08-30
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
Technical field
[0001] The invention relates to a hepatitis B vaccine for human use and a preparation method thereof, in particular to a hepatitis B vaccine containing a nano aluminum adjuvant and a preparation method thereof. technical background
[0002] The main component of hepatitis B vaccine is HBsAg with an isoelectric point of 4.5. HBsAg contains a large number of phosphate groups. Because the isoelectric points (iep) of HBsAg and aluminum hydroxide adjuvant are 4.5 and 11.4, respectively. Therefore, in the neutral environment of the body with pH=7.4, the former shows a negative charge and the latter shows a positive charge. The two can have a good adsorption effect due to electrostatic force.
[0003] The main mechanisms of aluminum adjuvant adsorption of antigens include electrostatic force, hydrophobic interaction and group exchange [Vogel FR, Hem SL. In: Plotkin SA, Orenstein MD, editors. Vaccines. 4th ed. New York: Sanders]. The adsorption caused by hydrophobic inter...