Biological activities on T lymphocytes of a baculovirus-expressed chimeric recombinant IgG1 antibody with specificity for the CDR3-like loop on the D1 domain of the CD4 molecule

A baculovirus-expressed chimeric recombinant IgG1 (rIgG1) antibody, with Cgamma1 and Ckappa human constant domains, was derived from the murine monoclonal antibody (mAb) 13B8.2, which is specific for the CDR3-like loop of the CD4 molecule and which inhibits HIV-1 replication. Chimeric rIgG1 antibody...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 119(2006), 1 vom: 28. Apr., Seite 38-50
1. Verfasser: Troadec, Samuel (VerfasserIn)
Weitere Verfasser: Bès, Cédric, Chentouf, Myriam, Nguyen, Brigitte, Briant, Laurence, Jacquet, Chantal, Chebli, Karim, Pugnière, Martine, Roquet, Françoise, Cerutti, Martine, Chardès, Thierry
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Antibodies, Monoclonal CD3 Complex CD4 Antigens Epitopes Immunoglobulin G Interleukin-2 Recombinant Fusion Proteins Ionomycin mehr... 56092-81-0 Tetradecanoylphorbol Acetate NI40JAQ945
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100 1 |a Troadec, Samuel  |e verfasserin  |4 aut 
245 1 0 |a Biological activities on T lymphocytes of a baculovirus-expressed chimeric recombinant IgG1 antibody with specificity for the CDR3-like loop on the D1 domain of the CD4 molecule 
264 1 |c 2006 
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500 |a Date Revised 16.11.2017 
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520 |a A baculovirus-expressed chimeric recombinant IgG1 (rIgG1) antibody, with Cgamma1 and Ckappa human constant domains, was derived from the murine monoclonal antibody (mAb) 13B8.2, which is specific for the CDR3-like loop of the CD4 molecule and which inhibits HIV-1 replication. Chimeric rIgG1 antibody 13B8.2 blocked, in a dose-dependent manner, antigen presentation through inhibition of subsequent IL-2 secretion by stimulated T cells. The one-way mixed lymphocyte reaction was abrogated by previous addition of baculovirus-produced rIgG1 13B8.2 in the T-cell culture. Anti-proliferative activity of rIgG1 was demonstrated on CD3-activated CD4+ T lymphocytes from healthy donors, such effect being associated with reduced IL-2 secretion of activated T cells. On the other hand, no proliferation inhibition was observed on CD4+ T lymphocytes activated with phorbol ester plus ionomycin, suggesting that rIgG1 13B8.2 preferentially acts on a proximal TCR-induced signaling pathway. Treatment of DBA1/J human CD4-transgenic mice with 100 microg of recombinant antibody for three consecutive days led to in vivo recovery of rIgG1 antibody 13B8.2 both coated on murine T lymphocytes and free in mouse serum, without CD4 depletion or down-modulation. These findings predict that the baculovirus-expressed chimeric rIgG1 anti-CD4 antibody 13B8.2 is a promising candidate for immunotherapy 
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650 7 |a Epitopes  |2 NLM 
650 7 |a Immunoglobulin G  |2 NLM 
650 7 |a Interleukin-2  |2 NLM 
650 7 |a Recombinant Fusion Proteins  |2 NLM 
650 7 |a Ionomycin  |2 NLM 
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700 1 |a Bès, Cédric  |e verfasserin  |4 aut 
700 1 |a Chentouf, Myriam  |e verfasserin  |4 aut 
700 1 |a Nguyen, Brigitte  |e verfasserin  |4 aut 
700 1 |a Briant, Laurence  |e verfasserin  |4 aut 
700 1 |a Jacquet, Chantal  |e verfasserin  |4 aut 
700 1 |a Chebli, Karim  |e verfasserin  |4 aut 
700 1 |a Pugnière, Martine  |e verfasserin  |4 aut 
700 1 |a Roquet, Françoise  |e verfasserin  |4 aut 
700 1 |a Cerutti, Martine  |e verfasserin  |4 aut 
700 1 |a Chardès, Thierry  |e verfasserin  |4 aut 
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