A new approach to comparing anti-CD20 antibodies: importance of the lipid rafts in their lytic efficiency.

Abstract:

:The view that B lymphocytes are pathogenic in diverse pathological settings is supported by the efficacy of B-cell-ablative therapy in lymphoproliferative disorders, autoimmune diseases and graft rejection. Anti-B-cell antibodies (Abs) directed against CD20 have therefore been generated, and of these, rituximab was the first anti-CD20 monoclonal Ab (mAb) to be applied. Rituximab-mediated apoptosis, complement-dependent cytotoxicity and Ab-dependent cellular cytotoxicity differ from one disease to another, and, for the same disease, from one patient to another. This knowledge has prompted the development of new anti-CD20 mAbs in the hope of improving B-cell depletion. The inclusion of CD20/anti-CD20 complexes in large lipid rafts (LRs) enhances the results of some, but not all, anti-CD20 mAbs, and it may be possible to include smaller LRs. Lipid contents of membrane may be abnormal in malignant B-cells, and could explain resistance to treatment. The function of these mAbs and the importance of LRs warrant further investigation. A detailed understanding of them will increase results for B-cell depletion in lymphoproliferative diseases.

journal_name

Onco Targets Ther

journal_title

OncoTargets and therapy

authors

Hammadi M,Pers JO,Berthou C,Youinou P,Bordron A

doi

10.2147/ott.s9774

subject

Has Abstract

pub_date

2010-06-24 00:00:00

pages

99-109

issn

1178-6930

journal_volume

3

pub_type

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