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Target therapy of multiple myeloma by PTX-NPs and ABCG2 antibody in a mouse xenograft model.

Authors: Yang, C  Xiong, F  Dou, J  Xue, J  Zhan, X  Shi, F  Li, M  Wu, S  Luo, S  Zhang, T  Zhang, Y  Ming, J  Gu, N 
Citation: Yang C, etal., Oncotarget. 2015 Sep 29;6(29):27714-24. doi: 10.18632/oncotarget.4663.
Pubmed: (View Article at PubMed) PMID:26314844
DOI: Full-text: DOI:10.18632/oncotarget.4663

Multiple myeloma (MM) remains to be an incurable disease. The purpose of this study was to evaluate the effect of ABCG2 monoclonal antibody (McAb) combined with paclitaxel (PTX) conjugated with Fe3O4 nanoparticles (NPs) on MM progressed from cancer stem cells (CSCs) in non-obese-diabetic/severe-combined-immunodeficiency (NOD/SCID) mouse model. Mice were injected with MM CSCs as marked by CD138-CD34- phenotypes through tail veins. The developed MM mice were examined by micro-computer tomography scanning, ultrasonography and enzyme-linked immunosorbent analysis. These mice were then intravenously treated with different combinations of NPs, PTX, McAb, PTX-NPs and melphalan/prednisone once a week for four weeks. The injected mice developed characteristic MM-associated syndromes, including lytic bone lesions, renal damages and proteinuria. All the treated mice showed decrease in bone lesions, renal damages and anemia but increase in apoptosis compared with the mice treated with NPs only. In particular, the treatment with ABCG2 McAb plus PTX-NPs induced the strongest therapeutic response and had an efficacy even better than that of melphalan/prednisone, a conventional regimen for MM patients. These data suggest that PTX-NPs with ABCG2 McAb can be developed into potential treatment regimens for patients with relapsed/refractory MM.

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CRRD Object Information
CRRD ID: 11081075
Created: 2016-05-25
Species: All species
Last Modified: 2016-05-25
Status: ACTIVE



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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.