期刊
PROTEOMICS CLINICAL APPLICATIONS
卷 3, 期 11, 页码 1348-1360出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/prca.200900068
关键词
Annexin A1; Multiple myeloma; Plasma cell
资金
- State Key Laboratory of Virology of China [2009003]
- Talents Start-up Foundation of Jinan University [51207040]
- Program for New Century Excellent Talents in University [NCET-07-0376]
To clarify the molecular mechanisms that participate in the formation of multiple myeloma (MM) and to detect any tumor-related biomarkers, we performed proteomic analysis of cellular protein extracts from MM cells and normal plasma cells. Plasma cells from nine patients with newly diagnosed MM and nine healthy donors were purified by using anti-CD138 based immunomagnetic bead-positive selection. The protein profiles of purified MM and normal plasma cells were compared using 2-DE. We identified a total of 43 differentially expressed proteins, and confirmed with Western blotting six proteins. The altered proteins were analyzed using the software program Pathway Studio and the biological network can be accessed via (http://life-health.jnu.edu.cn/pathway/pathway.html). Further functional studies showed that annexin A1 knock down modestly induces lethality alone and potentiates the effects of dexamethasone on both dexamethasone-sensitive and dexamethasone-resistant MM cells. By correlating the proteomic data with these functional studies, the current results provide not only new insights into the pathogenesis of MM but also direct implications for the development of novel anti-MM therapeutic strategies and could lead to the discovery of potential therapeutic targets. Future molecular and functional studies would provide novel insights into the roles of these dysregulated proteins in the molecular etiology of MM.
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