Therapeutic Effect of Lenalidomide in a Novel Xenograft Mouse Model of Human Blastic NK Cell Lymphoma/Blastic Plasmacytoid Dendritic Cell Neoplasm

被引:34
作者
Agliano, Alice [1 ,2 ]
Martin-Padura, Ines [1 ]
Marighetti, Paola [1 ]
Gregato, Giuliana [1 ]
Calleri, Angelica [1 ]
Prior, Celia [2 ]
Redrado, Miriam [2 ]
Calvo, Alfonso [2 ]
Bertolini, Francesco [1 ]
机构
[1] European Inst Oncol, Lab Hematol Oncol, I-20141 Milan, Italy
[2] Univ Navarra, CIMA, Lab Novel Therapeut Targets, Div Oncol, E-31080 Pamplona, Spain
关键词
THALIDOMIDE ANALOGS; MULTIPLE-MYELOMA; ACUTE-LEUKEMIA; IN-VIVO; TUMOR; MICE; MALIGNANCIES; DISEASE; INHIBITION; APOPTOSIS;
D O I
10.1158/1078-0432.CCR-11-0212
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Purpose: Blastic natural killer (NK) cell lymphoma/blastic plasmacytoid dendritic cell neoplasm (BNKL) is a rare and aggressive neoplasia characterized by infiltration of blast CD4(+)/CD56(+) cells in the skin, the bone marrow, and peripheral blood. Currently, more efforts are required to better define molecular and biological mechanisms associated with this pathology. To the best of our knowledge, no mouse model recapitulated human BNKL so far. Experimental Design: Primary bone marrow cells from a BNKL patient were injected in nonobese diabetes/severe combined immunodeficient interleukin (IL) 2r gamma(-/-) mice with the intent to generate the first BNKL orthotopic mouse model. Moreover, because of the lack of efficient treatments for BNKL, we treated mice with lenalidomide, an immunomodulatory and antiangiogenic drug. Results: We generated in mice a fatal disease resembling human BNKL. After lenalidomide treatment, we observed a significant reduction in the number of peripheral blood, bone marrow, and spleen BNKL cells. Tumor reduction parallels with a significant decrease in the number of circulating endothelial and progenitor cells and CD31(+) murine endothelial cells. In mice treated with lenalidomide, BNKL levels of active caspase-3 were significantly augmented, thus showing proapoptotic and cytotoxic effects of this drug in vivo. An opposite result was found for proliferating cell nuclear antigen, a proliferation marker. Conclusions: Our BNKL model might better define the cellular and molecular mechanisms involved in this disease, and lenalidomide might be considered for the future therapy of BNKL patients. Clin Cancer Res; 17(19); 6163-73. (C) 2011 AACR.
引用
收藏
页码:6163 / 6173
页数:11
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