Identifying the Epitope of Monoclonal Antibody with Phage-displayed Random Peptide Library / 中华皮肤科杂志
Chinese Journal of Dermatology
;
(12)1995.
Article
in Chinese
| WPRIM
| ID: wpr-521845
ABSTRACT
Objective To obtain the short peptides from phage-displayed random peptide library through screening the epitope of monoclonal antibody against tumor necrosis factor(TNF-?). Methods Anti-TNF-? was used to immunoscreen a phage random peptide library of 12 amino-acidresidues displayed as a fusion to protein Ⅲ of filamentous phage M13. The positive clones were obtained by three rounds of biopanning, and the reactivity of each clone binding to anti-TNF-? was examined by double-antibody sandwich ELISA and Dot-ELISA. Mixed positive phage clones were used to detect the serum from SLE patients and healthy persons by Dot-ELISA. Results The eluted phages were enriched nearly 100 fold through three rounds of biopanning, 7 phage clones from the third round biopanning were randomly selected and 5 clones of them could bind to the anti-TNF-?. The binding rate of mixed clones with SLE patients was significantly higher than that of healthy persons. Conclusion The phage display technique can be applied to study the anti-TNF-? antigenic peptides, and these epitopes provide the potential for developing immunodiagnostic reagents of vaccines.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Controlled clinical trial
/
Prognostic study
Language:
Chinese
Journal:
Chinese Journal of Dermatology
Year:
1995
Type:
Article
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