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Construction, Expression, Purification and Immunology Effect of an Antiatherosclerosis Chimeric Enzyme Vaccine in Escherichia coli

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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.

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Keywords: Atherosclerosis; CETP B cell epitope; antibody; construction; expression and purification; vaccine

Document Type: Research Article

Publication date: 2008-07-01

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  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.
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