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Nucleophosmin/anaplastic Lymphoma Kinase (NPM/ALK) Oncoprotein Induces the T Regulatory Cell Phenotype by Activating STAT3

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Specialty Science
Date 2006 Jun 13
PMID 16766651
Citations 69
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Abstract

The mechanisms of malignant cell transformation mediated by the oncogenic, chimeric nucleophosmin/anaplastic lymphoma kinase (NPM/ALK) tyrosine kinase remain only partially understood. Here we report that the NPM/ALK-carrying T cell lymphoma (ALK+TCL) cells secrete IL-10 and TGF-beta and express FoxP3, indicating their T regulatory (Treg) cell phenotype. The secreted IL-10 suppresses proliferation of normal immune, CD3/CD28-stimulated peripheral blood mononuclear cells and enhances viability of the ALK+TCL cells. The Treg phenotype of the affected cells is strictly dependent on NPM/ALK expression and function as demonstrated by transfection of the kinase into BaF3 cells and inhibition of its enzymatic activity and expression in ALK+TCL cells. NPM/ALK, in turn, induces the phenotype through activation of its key signal transmitter, signal transducer and activator of transcription 3 (STAT3). These findings identify a mechanism of NPM/ALK-mediated oncogenesis based on induction of the Treg phenotype of the transformed CD4(+) T cells. These results also provide an additional rationale to therapeutically target the chimeric kinase and/or STAT3 in ALK+TCL.

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References
1.
Chen W, Jin W, Hardegen N, Lei K, Li L, Marinos N . Conversion of peripheral CD4+CD25- naive T cells to CD4+CD25+ regulatory T cells by TGF-beta induction of transcription factor Foxp3. J Exp Med. 2003; 198(12):1875-86. PMC: 2194145. DOI: 10.1084/jem.20030152. View

2.
Wang T, Niu G, Kortylewski M, Burdelya L, Shain K, Zhang S . Regulation of the innate and adaptive immune responses by Stat-3 signaling in tumor cells. Nat Med. 2004; 10(1):48-54. DOI: 10.1038/nm976. View

3.
Yu H, Jove R . The STATs of cancer--new molecular targets come of age. Nat Rev Cancer. 2004; 4(2):97-105. DOI: 10.1038/nrc1275. View

4.
Marshall N, Christie L, Munro L, Culligan D, Johnston P, Barker R . Immunosuppressive regulatory T cells are abundant in the reactive lymphocytes of Hodgkin lymphoma. Blood. 2003; 103(5):1755-62. DOI: 10.1182/blood-2003-07-2594. View

5.
Gamero A, Young H, Wiltrout R . Inactivation of Stat3 in tumor cells: releasing a brake on immune responses against cancer?. Cancer Cell. 2004; 5(2):111-2. DOI: 10.1016/s1535-6108(04)00028-5. View