Abstract

In this study we describe the identification of sodium-dependent phosphate transporter NaPi2b as MX35 cancer-associated antigen. To achieve this goal we have screened extensively a cDNA expressing library from ovarian cancer cell line OVCAR3 with monoclonal antibody MX35. To further confirm the authenticity of this finding, we showed that bacterially and baculovirally expressed NaPi2b is specifically recognized by MX35 antibody. Moreover, the validity of these results was verified in a parallel study involving affinity purification and mass spectrometry. The epitope for MX35 monoclonal antibody was mapped to the largest extracellular loop of NaPi2b. Taken together, this study uncovers the identity of MX35 antigen and provides molecular tools for studying its function in normal and cancer tissues.

Details

Title
Identification of phosphate transporter NaPi2b as MX35 cancer antigen by modified SEREX approach
Author
Kiyamova, R G; Gryshkova, V S; Usenko, V S; Khozaenko, Y S; Gurtovyy, V A; Yin, B; Ritter, G; Old, L; Gout, I T; Filonenko, V V
Pages
218-224
Section
Structure and Function of Biopolymers
Publication year
2008
Publication date
2008
Publisher
Natsional'na Akademiya Nauk Ukrainy - National Academy of Sciences of Ukraine
ISSN
02337657
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2307123784
Copyright
© 2008. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.