Construction and expression in vitro of a targeted fusion anticaries DNA vaccine / 中华口腔医学杂志
Chinese Journal of Stomatology
; (12): 282-284, 2003.
Article
in Zh
| WPRIM
| ID: wpr-253722
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To construct and detect the targeted anti-caries fusion DNA vaccine pGJA-P encoding the A-P fragment of pac, glu fragment of gtfB and extracellular region of the human CTLA4 and the Fc region of human Iggamma(1) gene for the targeting antigen to APC.</p><p><b>METHODS</b>The extracellular region of the human CTLA4 and the Fc region of human Iggamma(1) genes were amplified by RT-PCR from human lymphocytes, and the genes were cloned into pUC(m-T) vector respectively. After sequencing, Fc region of human Iggamma(1) gene was cloned to the downstream of CTLA4 gene fragment as the recombinant plasmid pGJ. The fusion gene was then inserted into the plasmid pGLUA-P to get the recombinant plasmid pGJA-P. The CHO cells were transfected with liposome and the expression of fusion protein in cultured supernatants were detected using Western blotting.</p><p><b>RESULTS</b>The plasmids pGJ and pGJA-P carried the CTLA4-Ig fusion gene and CTLA4-Ig fusion gene, A-P fragment of pac gene and glu fragment of gtfB gene respectively. The expressed protein could response to specific anti-PAc antibody.</p><p><b>CONCLUSION</b>The targeted fusion anti-caries DNA vaccine pGJA-P is constructed successfully and expressed in eukaryotic cells correctly.</p>
Full text:
1
Database:
WPRIM
Main subject:
Streptococcus mutans
/
Recombinant Fusion Proteins
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Antigens, Differentiation
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Antigens, CD
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CHO Cells
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Vaccines, DNA
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Dental Caries
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Allergy and Immunology
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CTLA-4 Antigen
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Genetics
Limits:
Animals
/
Humans
Language:
Zh
Journal:
Chinese Journal of Stomatology
Year:
2003
Document type:
Article