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Updated: Jul 12, 2026
Generation of Discriminative Human Monoclonal Antibodies from Rare Antigen-specific B Cells Circulating in Blood
Published on: February 6, 2018
Production, characterization, and functional analysis of newly established CD99 monoclonal antibodies MT99/1 and
Panida Khunkaewla1, Sawitree Chiampanichayakul, Umpa Yasamut
1Biomedical Technology Research Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency at the Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand.
Abstract:
The leukocyte surface molecule CD99 is an integral membrane glycoprotein encoded by the E2/MIC2 gene. This molecule is broadly expressed on cells of the hematopoietic system and displays two surface forms, a long 32 kDa form and a short 28 kDa form. While the complete function of the CD99 molecule is unclear, it has been reported to be involved in regulation of cell adhesion, migration, and apoptosis. Thus, several CD99 monoclonal antibodies (MAbs) have been generated for biochemical and functional studies of the CD99 molecule. In the present study two CD99 MAbs, MT99/1 and MT99/2, were produced. The MAbs recognized different epitopes of the CD99 molecule. MAb MT99/1, but not MT99/2, was appropriate for biochemical characterization. Binding of MAb MT99/1 with its epitope led to the induction of cell adhesion and apoptosis. The generated MAbs can be used for future study of the function and mechanism of the CD99 molecule, including its role in the immune system, and may have application in tumor diagnosis and treatment.
