Abstract
Cell lines BTSN4 and BTSN5 were produced by the Epstein-Barr Virus (EBV) transformation of B-lymphocytes from the same human donor. Both secrete an anti-D monoclonal of the IgG1 subclass but these antibodies display vastly different effector activities. Specifically, anti-D from BTSN4 has a far greater activity in both monocyte-and lymphocyte-mediated ADCC reactions and causes a higher percentage of rosettes to be formed with monocyte-like U937 cells. This variation in functional activity is shown to coincide with changes in the structure of the sugar chains attached to the asparagine-297 site on the immunoglobulin heavy chain.
Original language | English |
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Pages (from-to) | 223-228 |
Number of pages | 6 |
Journal | Cytotechnology |
Volume | 15 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - Feb 1994 |
Keywords
- anti-D
- effector function
- glycosylation
- immunoglobulin G
- monoclonal antibody