Abstract:
:Monoclonal antibody (mAb) drugs are desirable for the improvement of multiple myeloma (MM) treatment. In this study, we found for the first time that CD48 was highly expressed on MM plasma cells. In 22 out of 24 MM patients, CD48 was expressed on more than 90% of MM plasma cells at significantly higher levels than it was on normal lymphocytes and monocytes. CD48 was only weakly expressed on some CD34(+) haematopoietic stem/progenitor cells, and not expressed on erythrocytes or platelets. We next examined whether CD48 could serve as a target antigen for mAb therapy against MM. A newly generated in-house anti-CD48 mAb induced mild antibody-dependent cell-mediated cytotoxicity and marked complement-dependent cytotoxicity against not only MM cell lines but also primary MM plasma cells in vitro. Administration of the anti-CD48 mAb significantly inhibited tumour growth in severe combined immunodeficient mice inoculated subcutaneously with MM cells. Furthermore, anti-CD48 mAb treatment inhibited growth of MM cells transplanted directly into murine bone marrow. Finally and importantly, we demonstrated that the anti-CD48 mAb did not damage normal CD34(+) haematopoietic stem/progenitor cells. These results suggest that the anti-CD48 mAb has the potential to become an effective therapeutic mAb against MM.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Hosen N,Ichihara H,Mugitani A,Aoyama Y,Fukuda Y,Kishida S,Matsuoka Y,Nakajima H,Kawakami M,Yamagami T,Fuji S,Tamaki H,Nakao T,Nishida S,Tsuboi A,Iida S,Hino M,Oka Y,Oji Y,Sugiyama Hdoi
10.1111/j.1365-2141.2011.08941.xsubject
Has Abstractpub_date
2012-01-01 00:00:00pages
213-24issue
2eissn
0007-1048issn
1365-2141journal_volume
156pub_type
杂志文章abstract::Whether or not pregnant women with a previous episode of venous thromboembolism (VTE) should receive antithrombotic prophylaxis is a matter of debate. In order to estimate the rate of recurrent deep venous thrombosis (DVT) or pulmonary embolism (PE) during pregnancy and puerperium we retrospectively investigated a coh...
journal_title:British journal of haematology
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journal_title:British journal of haematology
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journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1980.tb01208.x
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journal_title:British journal of haematology
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journal_title:British journal of haematology
pub_type: 杂志文章
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journal_title:British journal of haematology
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journal_title:British journal of haematology
pub_type: 杂志文章
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journal_title:British journal of haematology
pub_type: 杂志文章
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journal_title:British journal of haematology
pub_type: 杂志文章
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