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Updated: Aug 5, 2026

Generation of Human CD40-activated B cells
Published on: October 17, 2009
[Anti-CD40 McAb induces CD40+ malignant B cell proliferation arrest and apoptosis]
Objective:
To study the expression of CD(40) molecule and the biological effects mediated by CD(40) molecules on malignant B cells.
Methods:
Agonistic anti-human CD(40) monoclonal antibody (5C11) was added to the cell culture system. Cell counting, PI staining, Annexin-V staining and flow cytometric analysis were used to study the biological effects of 5C11 on malignant B cell lines.
Results:
5C11 induced homotypic aggregation, proliferation arrest and apoptosis in the multiple myeloma cell line XG2 highly expressed CD(40). 5C11 induced B lymphoma cell line Daudi homotypic aggregation and proliferation arrest but no apoptosis.
Conclusion:
5C11 can inhibit proliferation of malignant B cells by inducing apoptosis or arresting the cells at G(2)/M interphase.
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