کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10909716 | 1087935 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
GM-CSF does not increase CD20 antigen expression on chronic lymphocytic leukemia lymphocytes
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
تحقیقات سرطان
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چکیده انگلیسی
CD20 antigen expression in B-chronic lymphocytic leukemia (B-CLL) is at significantly lower levels than in non-Hodgkins lymphoma, which may affect the degree of anti-CD20 antibody binding. Low density of CD20 expression on malignant cells may explain the lower response rates to anti-CD20 monoclonal antibody, observed in B-CLL. Upregulating the antigen receptor intensity on tumor cells may enhance the response rates. In this study, we examined the influence of granulocyte macrophage-colony stimulating factor (GM-CSF) on the expression level of CD20 antigen and percent of cells expressing CD20 antigen on B-CLL lymphocytes, in vivo. CD20 antigen expression was studied by flow cytometry at baseline, 12 and 24 h after GM-CSF injection. However neither upregulation of CD20 antigen nor a change of the proportion of CD20 positive cells was observed after a dose of 5 μg/kg GM-CSF. Strategies other than GM-CSF priming needs to be evaluated in order to increase the efficacy of anti-CD20 monoclonal antibodies in B-CLL.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Leukemia Research - Volume 29, Issue 7, July 2005, Pages 735-738
Journal: Leukemia Research - Volume 29, Issue 7, July 2005, Pages 735-738
نویسندگان
Münci YaÄcı, Ä°rem Akar, Gülsan Türköz Sucak, Rauf Haznedar,