Abstract
In order to prevent atherosclerosis, a chimeric enzyme vaccine of AnsB-TTP-PADRE-CETPC was successfully constructed, expressed and purified to immunize New Zealand white rabbits for inducing high titers of anti-CETP antibodies to improve lipid abnormality. The protein was expressed as soluble protein in Escherichia coli and purified by anion exchange column and Sephadex G-100 size-exclusion chromatography. After immunizing rabbits with the purified protein, high titer anti-CETP antibodies were induced and lasted more than nineteen weeks in vivo; High density lipoprotein cholesterol (HDL-C) content in the serum was elevated to 61% while decreased low density lipoprotein cholesterol (LDL-C) to 37.2% compared with control rabbits in the presence of Al(OH)3.
Keywords: Atherosclerosis, vaccine, CETP B cell epitope, antibody, construction, expression and purification
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