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1.
Chinese Journal of Blood Transfusion ; (12)2001.
Article Dans Chinois | WPRIM | ID: wpr-582825

Résumé

Objective Human immunoglobulin combinatorial library was generated by using phage surface display expression system, and phage antibodies (Fabs) to platelet were screened.Methods:PBMC were separated from a patient who Were transfusion refractory to platelet. mRNA was isolated and cDNA was synthesized by reverse transcriptase.The immunoglobulin heavy chain Fd and the light chain ? genes were amplified by half nested PCR and the PCR products were cloned into the expression vector pCome3 respectively.The immunoglobulin combinatorial library was constructed and screened by 3 rounds of affinity selection.Results Human Immunoglobulin Combinatorial Library was successfully constructed.The specific phage antibodies were highly enriched after 3 rounds of biopanning selection against platelet membrane proteins.Conclusion The antibody library and human monoclonal antibodies to platelet may be useful as molecular tools to study the anti platelet drugs, platelet related diseases, epitope of human platelet antigens.

2.
Chinese Journal of Pathophysiology ; (12)1989.
Article Dans Chinois | WPRIM | ID: wpr-525143

Résumé

AIM: To construct a human recombinant immunoglobulin library containing D-Dimer by using phage surface display technology. METHODS: Human immunoglobulin heavy chain and light chain genes were amplified respectively by RT-PCR from different human lymphocytes using family specific primers and signal sequences of immunoglobulin as half-nested PCR primers. The heavy chain and light chain PCR products were cloned into phagemid vector pComb3H and the human immunoglobulin recombination library was generated with helper phage VCSM13. RESULTS: A human combinatorial antibody library consisting of 2.8?10~8 in dependent clones was generated with a titer of 4.1?10~(17)PFU/L. The recombinant frequency of Fab genes was 46%. CONCLUSION: A human combinatorial antibody library was generated. It will be beneficial for selecting Fab antibodies of D dimer from the library.

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