Protein Kinase C-β-Dependent Activation of NF-κB in Stromal Cells Is Indispensable for the Survival of Chronic Lymphocytic Leukemia B Cells In Vivo

被引:117
|
作者
Lutzny, Gloria [1 ]
Kocher, Thomas [4 ]
Schmidt-Supprian, Marc [5 ]
Rudelius, Martina [2 ]
Klein-Hitpass, Ludger [6 ]
Finch, Andrew J. [8 ,9 ]
Duerig, Jan [7 ]
Wagner, Michaela [1 ]
Haferlach, Claudia [10 ]
Kohlmann, Alexander [10 ]
Schnittger, Susanne [10 ]
Seifert, Marc [6 ]
Wanninger, Stefan [3 ]
Zaborsky, Nadja [4 ]
Oostendorp, Robert [1 ]
Ruland, Juergen [3 ]
Leitges, Michael [11 ]
Kuhnt, Toni [1 ]
Schaefer, Yvonne [1 ]
Lampl, Benedikt [1 ]
Peschel, Christian [1 ]
Egle, Alexander [4 ]
Ringshausen, Ingo [1 ]
机构
[1] Tech Univ, Dept Hematol, D-81675 Munich, Germany
[2] Tech Univ, Dept Pathol, D-81675 Munich, Germany
[3] Tech Univ, Inst Klin Chem & Pathobiochem, D-81675 Munich, Germany
[4] Paracelsus Private Med Univ Hosp, Med Dept Hematol 3, Lab Immunol & Mol Canc Res, A-5020 Salzburg, Austria
[5] Max Planck Inst Biochem, D-82152 Martinsried, Germany
[6] Univ Duisburg Essen, Fac Med, Inst Cell Biol Canc Res, D-45122 Essen, Germany
[7] Univ Duisburg Essen, Dept Hematol, D-45122 Essen, Germany
[8] Med Res Council Lab Mol Biol, Cambridge CB2 0QH, England
[9] Univ Cambridge, Dept Haematol, Cambridge CB2 0XY, England
[10] MLL Munich Leukemia Lab, D-81377 Munich, Germany
[11] Biotechnol Ctr Oslo, N-0317 Oslo, Norway
基金
奥地利科学基金会;
关键词
EXPRESSION; APOPTOSIS; MOUSE; CLL; MODEL; DEGRADATION; RECRUITMENT; RESISTANCE; INHIBITOR; MUTATIONS;
D O I
10.1016/j.ccr.2012.12.003
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Tumor cell survival critically depends on heterotypic communication with benign cells in the microenvironrnent. Here, we describe a survival signaling pathway activated in stromal cells by contact to B cells from patients with chronic lymphocytic leukemia (CLL). The expression of protein kinase C (PKC)-beta II and the subsequent activation of NF-kappa B in bone marrow stromal cells are prerequisites to support the survival of malignant B cells. PKC-beta knockout mice are insusceptible to CLL transplantations, underscoring the in vivo significance of the PKC-beta II-NF-kappa B signaling pathway in the tumor microenvironment. Upregulated stromal PKG-beta II in biopsies from patients with CLL, acute lymphoblastic leukemia, and mantle cell lymphoma suggests that this pathway may commonly be activated in a variety of hematological malignancies.
引用
收藏
页码:77 / 92
页数:16
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