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Liu F, Gao Y, Xu B, Xiong S, Yi S, Sun J, Chen Z, Liu X, Li Y, Lin Y, Wen Y, Qin Y, Yang S, Li H, Tejasvi T, Tsoi L, Tu P, Ren X, Wang Y. PEG10 amplification at 7q21.3 potentiates large-cell transformation in cutaneous T-cell lymphoma. Blood 2022; 139:554-571. [PMID: 34582557 PMCID: PMC8893588 DOI: 10.1182/blood.2021012091] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/07/2021] [Indexed: 01/29/2023] Open
Abstract
Mycosis fungoides (MF), the most common form of cutaneous T-cell lymphoma, undergo large-cell transformation (LCT) in the late stage, manifesting aggressive behavior, resistance to treatments, and poor prognosis, but the mechanisms involved remain unclear. To identify the molecular driver of LCT, we collected tumor samples from 133 MF patients and performed whole-transcriptome sequencing on 49 advanced-stage MF patients, followed by integrated copy number inference and genomic hybridization. Tumors with LCT showed unique transcriptional programs and enriched expressions of genes at chr7q. Paternally expressed gene 10 (PEG10), an imprinted gene at 7q21.3, was ectopically expressed in malignant T cells from LCT, driven by 7q21.3 amplification. Mechanistically, aberrant PEG10 expression increased cell size, promoted cell proliferation, and conferred treatment resistance by a PEG10/KLF2/NF-κB axis in in vitro and in vivo models. Pharmacologically targeting PEG10 reversed the phenotypes of proliferation and treatment resistance in LCT. Our findings reveal new molecular mechanisms underlying LCT and suggest that PEG10 inhibition may serve as a promising therapeutic approach in late-stage aggressive T-cell lymphoma.
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MESH Headings
- Animals
- Apoptosis Regulatory Proteins/genetics
- Cell Line, Tumor
- Cell Transformation, Neoplastic/genetics
- Cell Transformation, Neoplastic/pathology
- DNA-Binding Proteins/genetics
- Female
- Gene Amplification
- Gene Expression Regulation, Neoplastic
- Genomic Imprinting
- Humans
- Lymphoma, T-Cell, Cutaneous/genetics
- Lymphoma, T-Cell, Cutaneous/pathology
- Mice, Inbred NOD
- Mice, SCID
- Mycosis Fungoides/genetics
- Mycosis Fungoides/pathology
- RNA-Binding Proteins/genetics
- Skin Neoplasms/genetics
- Skin Neoplasms/pathology
- Mice
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Affiliation(s)
- Fengjie Liu
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Yumei Gao
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Bufang Xu
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Shan Xiong
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Shengguo Yi
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Jingru Sun
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Zhuojing Chen
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Xiangjun Liu
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Yingyi Li
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Yuchieh Lin
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Yujie Wen
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Yao Qin
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Shuxia Yang
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Hang Li
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Trilokraj Tejasvi
- Department of Dermatology, University of Michigan, Ann Arbor, MI; and
| | - Lam Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, MI; and
| | - Ping Tu
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
| | - Xianwen Ren
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing 100034, China
| | - Yang Wang
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing 100034, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing 100034, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing 100034, China
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Bednarz-Misa I, Bromke MA, Krzystek-Korpacka M. Interleukin (IL)-7 Signaling in the Tumor Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1290:9-49. [PMID: 33559853 DOI: 10.1007/978-3-030-55617-4_2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Interleukin (IL)-7 plays an important immunoregulatory role in different types of cells. Therefore, it attracts researcher's attention, but despite the fact, many aspects of its modulatory action, as well as other functionalities, are still poorly understood. The review summarizes current knowledge on the interleukin-7 and its signaling cascade in context of cancer development. Moreover, it provides a cancer-type focused description of the involvement of IL-7 in solid tumors, as well as hematological malignancies.The interleukin has been discovered as a growth factor crucial for the early lymphocyte development and supporting the growth of malignant cells in certain leukemias and lymphomas. Therefore, its targeting has been explored as a treatment modality in hematological malignancies, while the unique ability to expand lymphocyte populations selectively and without hyperinflammation has been used in experimental immunotherapies in patients with lymphopenia. Ever since the early research demonstrated a reduced growth of solid tumors in the presence of IL-7, the interleukin application in boosting up the anticancer immunity has been investigated. However, a growing body of evidence indicative of IL-7 upregulation in carcinomas, facilitating tumor growth and metastasis and aiding drug-resistance, is accumulating. It therefore becomes increasingly apparent that the response to the IL-7 stimulus strongly depends on cell type, their developmental stage, and microenvironmental context. The interleukin exerts its regulatory action mainly through phosphorylation events in JAK/STAT and PI3K/Akt pathways, while the significance of MAPK pathway seems to be limited to solid tumors. Given the unwavering interest in IL-7 application in immunotherapy, a better understanding of interleukin role, source in tumor microenvironment, and signaling pathways, as well as the identification of cells that are likely to respond should be a research priority.
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Affiliation(s)
- Iwona Bednarz-Misa
- Department of Medical Biochemistry, Wroclaw Medical University, Wroclaw, Poland
| | - Mariusz A Bromke
- Department of Medical Biochemistry, Wroclaw Medical University, Wroclaw, Poland
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Xie XJ, Di TT, Wang Y, Wang MX, Meng YJ, Lin Y, Xu XL, Li P, Zhao JX. Indirubin ameliorates imiquimod-induced psoriasis-like skin lesions in mice by inhibiting inflammatory responses mediated by IL-17A-producing γδ T cells. Mol Immunol 2018; 101:386-395. [PMID: 30064075 DOI: 10.1016/j.molimm.2018.07.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 05/13/2018] [Accepted: 07/07/2018] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Indirubin (IR) is a bisindole compound extracted from the leaves of Chinese herb Indigo Naturalis. Indigo Naturalis has been widely used in traditional Chinese medicine to treat inflammatory and autoimmune diseases. Psoriasis is a chronic immune-mediated inflammatory skin disease in which γδ T cells play an important role. This study aims to determine the immunoregulatory effects and the underlying mechanisms of Indirubin in psoriasis-related inflammatory responses. METHODS BALB/c mice with imiquimod (IMQ)-induced psoriasis-like dermatitis were treated with saline (Model), 1 mg/kg methotrexate (MTX) that serves as a positive control, or 12.5, 25 and 50 mg/kg Indirubin(IR) intragastrically. Keratinocytes proliferation, inflammatory cells infiltration, the expression of inflammatory cytokines and Jak/Stat pathway-related proteins in the skin lesion were examined. The abundance of γδ T cells in lymph nodes and spleen was determined by flow cytometry. The IL-17 expression and secretion, and the activation of Jak3/Stat3 pathways in in vitro cultured γδ T cell were tested. RESULTS Indirubin ameliorated keratinocyte proliferation, reduced the infiltration of CD3+ T cells, IL-17 A-producing γδ T cells, and CD11b+ neutrophils, inhibited the mRNA expression of Il1, Il6, Il23, Il17a and Il22, and the protein expression of Jak/Stat pathway-related molecules in the skin lesion. Indirubin also reduced the abundance of γδ T cell and CCR6+ γδ T cells (the major IL-17 A producer) in spleen and lymph nodes. In cultured γδ T cells, Indirubin inhibited the mRNA expression of Il17a and Ifng, and the secretion of IL-17 A, while suppressed the activation of Jak3/Stat3 pathways. CONCLUSION Indirubin alleviates IMQ-induced psoriasis-like dermatitis mainly through reducing the inflammatory responses mediated by IL-17 A-producing γδ T cells involving Jak3/Stat3 activation. Our results highlighted the novel mechanisms by which Indirubin ameliorates psoriasis-related inflammatory responses, supporting its therapeutic potential.
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Affiliation(s)
- Xiang-Jiang Xie
- Beijing Hospital of Traditional Chinese Medicine, Affiliated With Capital Medical University, Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, No.23 Mei shu guan Back Road, DongCheng District, Beijing, 100010, China
| | - Ting-Ting Di
- Beijing Hospital of Traditional Chinese Medicine, Affiliated With Capital Medical University, Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, No.23 Mei shu guan Back Road, DongCheng District, Beijing, 100010, China
| | - Yan Wang
- Beijing Hospital of Traditional Chinese Medicine, Affiliated With Capital Medical University, Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, No.23 Mei shu guan Back Road, DongCheng District, Beijing, 100010, China
| | - Ming-Xing Wang
- Beijing Hospital of Traditional Chinese Medicine, Affiliated With Capital Medical University, Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, No.23 Mei shu guan Back Road, DongCheng District, Beijing, 100010, China
| | - Yu-Jiao Meng
- Beijing Hospital of Traditional Chinese Medicine, Affiliated With Capital Medical University, Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, No.23 Mei shu guan Back Road, DongCheng District, Beijing, 100010, China
| | - Yan Lin
- Beijing Hospital of Traditional Chinese Medicine, Affiliated With Capital Medical University, Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, No.23 Mei shu guan Back Road, DongCheng District, Beijing, 100010, China
| | - Xiao-Long Xu
- Beijing Hospital of Traditional Chinese Medicine, Affiliated With Capital Medical University, Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, No.23 Mei shu guan Back Road, DongCheng District, Beijing, 100010, China
| | - Ping Li
- Beijing Hospital of Traditional Chinese Medicine, Affiliated With Capital Medical University, Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, No.23 Mei shu guan Back Road, DongCheng District, Beijing, 100010, China
| | - Jing-Xia Zhao
- Beijing Hospital of Traditional Chinese Medicine, Affiliated With Capital Medical University, Beijing Key Laboratory of Clinic and Basic Research with Traditional Chinese Medicine on Psoriasis, Beijing Institute of Traditional Chinese Medicine, No.23 Mei shu guan Back Road, DongCheng District, Beijing, 100010, China.
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Manfrere KCG, Torrealba MP, Miyashiro DR, Oliveira LMS, de Carvalho GC, Lima JF, Branco ACCC, Pereira NZ, Pereira J, Sanches JA, Sato MN. Toll-like receptor agonists partially restore the production of pro-inflammatory cytokines and type I interferon in Sézary syndrome. Oncotarget 2018; 7:74592-74601. [PMID: 27780938 PMCID: PMC5342689 DOI: 10.18632/oncotarget.12816] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 10/14/2016] [Indexed: 12/31/2022] Open
Abstract
Sézary syndrome (SS) carries a poor prognosis, and infections represent the most frequent cause of death in SS patients. Toll-like receptors (TLRs) are a family of innate immune receptors that induce protective immune responses against infections. We sought to evaluate the ability of TLR agonists to induce inflammatory cytokine, Th2 cytokine, and type I interferon (IFN-I) production by peripheral blood mononuclear cells (PBMC) of untreated SS patients. We detected impaired IL-6, IL-10 and IL-13 secretion by PBMC induced by the agonists for TLR5, TLR3, TLR7 and TLR9 in SS patients, while it was partially recovered by TLR2/TLR4 and TLR7/8 agonists TNF secretion was restored following stimulation with TLR2/TLR4 agonists. IFN-γ was scarcely produced upon TLR activation in SS cells, albeit TLR 7/8 (CL097) enhanced their secretion at lower levels than the control group. TLR9 agonist efficiently induced IFN-I in SS patients, although this positive regulation was not observed for other cytokines, in direct contrast to the broad activity of CL097. Among the TLR agonists, TLR4 was able to induce pro-inflammatory, IL-10 and Th2 secretion, while TLR7-8 agonist induced the inflammatory cytokines, IFN-I and IFN-γ. These findings reveal a dysfunctional cytokine response upon both extracellular and intracellular TLR activation in SS patients, which was partially restored by TLRs agonists.
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Affiliation(s)
- Kelly C G Manfrere
- Department of Dermatology, Laboratory of Medical Investigation (LIM 56), Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, Brazil
| | - Marina P Torrealba
- Department of Dermatology, Laboratory of Medical Investigation (LIM 56), Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, Brazil
| | - Denis R Miyashiro
- Department of Dermatology, Cutaneous Lymphoma Clinic, Hospital das Clínicas, University of São Paulo, Medical School, Brazil
| | - Luanda M S Oliveira
- Department of Dermatology, Laboratory of Medical Investigation (LIM 56), Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, Brazil
| | - Gabriel C de Carvalho
- Department of Dermatology, Laboratory of Medical Investigation (LIM 56), Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, Brazil
| | - Josenilson F Lima
- Department of Dermatology, Laboratory of Medical Investigation (LIM 56), Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, Brazil
| | - Anna Claudia C C Branco
- Department of Dermatology, Laboratory of Medical Investigation (LIM 56), Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, Brazil
| | - Nátalli Z Pereira
- Department of Dermatology, Laboratory of Medical Investigation (LIM 56), Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, Brazil
| | - Juliana Pereira
- Department of Hematology, University of São Paulo Medical School, Brazil
| | - José A Sanches
- Department of Dermatology, Cutaneous Lymphoma Clinic, Hospital das Clínicas, University of São Paulo, Medical School, Brazil
| | - Maria N Sato
- Department of Dermatology, Laboratory of Medical Investigation (LIM 56), Tropical Medicine Institute of São Paulo, University of São Paulo Medical School, Brazil
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Kim YJ, Won CH, Chang SE, Choi JH, Lee MW, Lee WJ. MYC protein expression is associated with poor prognosis in cutaneous diffuse large B-cell lymphoma. Australas J Dermatol 2017; 59:e240-e242. [DOI: 10.1111/ajd.12705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Young Jae Kim
- Department of Dermatology; Asan Medical Center; University of Ulsan College of Medicine; Seoul Korea
| | - Chong Hyun Won
- Department of Dermatology; Asan Medical Center; University of Ulsan College of Medicine; Seoul Korea
| | - Sung Eun Chang
- Department of Dermatology; Asan Medical Center; University of Ulsan College of Medicine; Seoul Korea
| | - Jee Ho Choi
- Department of Dermatology; Asan Medical Center; University of Ulsan College of Medicine; Seoul Korea
| | - Mi Woo Lee
- Department of Dermatology; Asan Medical Center; University of Ulsan College of Medicine; Seoul Korea
| | - Woo Jin Lee
- Department of Dermatology; Asan Medical Center; University of Ulsan College of Medicine; Seoul Korea
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Sibbesen NA, Kopp KL, Litvinov IV, Jønson L, Willerslev-Olsen A, Fredholm S, Petersen DL, Nastasi C, Krejsgaard T, Lindahl LM, Gniadecki R, Mongan NP, Sasseville D, Wasik MA, Iversen L, Bonefeld CM, Geisler C, Woetmann A, Odum N. Jak3, STAT3, and STAT5 inhibit expression of miR-22, a novel tumor suppressor microRNA, in cutaneous T-Cell lymphoma. Oncotarget 2016; 6:20555-69. [PMID: 26244872 PMCID: PMC4653025 DOI: 10.18632/oncotarget.4111] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 04/22/2015] [Indexed: 01/08/2023] Open
Abstract
Aberrant activation of Janus kinase-3 (Jak3) and its key down-stream effectors, Signal Transducer and Activator of Transcription-3 (STAT3) and STAT5, is a key feature of malignant transformation in cutaneous T-cell lymphoma (CTCL). However, it remains only partially understood how Jak3/STAT activation promotes lymphomagenesis. Recently, non-coding microRNAs (miRNAs) have been implicated in the pathogenesis of this malignancy. Here, we show that (i) malignant T cells display a decreased expression of a tumor suppressor miRNA, miR-22, when compared to non-malignant T cells, (ii) STAT5 binds the promoter of the miR-22 host gene, and (iii) inhibition of Jak3, STAT3, and STAT5 triggers increased expression of pri-miR-22 and miR-22. Curcumin, a nutrient with anti-Jak3 activity and histone deacetylase inhibitors (HDACi) also trigger increased expression of pri-miR-22 and miR-22. Transfection of malignant T cells with recombinant miR-22 inhibits the expression of validated miR-22 targets including NCoA1, a transcriptional co-activator in others cancers, as well as HDAC6, MAX, MYCBP, PTEN, and CDK2, which have all been implicated in CTCL pathogenesis. In conclusion, we provide the first evidence that de-regulated Jak3/STAT3/STAT5 signalling in CTCL cells represses the expression of the gene encoding miR-22, a novel tumor suppressor miRNA.
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Affiliation(s)
- Nina A Sibbesen
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Katharina L Kopp
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Ivan V Litvinov
- Division of Dermatology, McGill University Health Centre, Montréal, Quebec, Canada
| | - Lars Jønson
- Departmen of Molecular Medicine, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark
| | | | - Simon Fredholm
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - David L Petersen
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Claudia Nastasi
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Thorbjørn Krejsgaard
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Lise M Lindahl
- Department of Dermatology, Aarhus University Hospital, Skejby, Aarhus, Denmark
| | - Robert Gniadecki
- Departmen of Dermatology, Copenhagen University Hospital, Bispebjerg, Copenhagen, Denmark
| | - Nigel P Mongan
- Faculty of Medicine and Health Science, School of Veterinary Medicine and Science, University of Nottingham, Loughborough, United Kingdom
| | - Denis Sasseville
- Division of Dermatology, McGill University Health Centre, Montréal, Quebec, Canada
| | - Mariusz A Wasik
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Lars Iversen
- Department of Dermatology, Aarhus University Hospital, Skejby, Aarhus, Denmark
| | - Charlotte M Bonefeld
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Carsten Geisler
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Anders Woetmann
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Niels Odum
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
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Wilcox RA. Cutaneous T-cell lymphoma: 2016 update on diagnosis, risk-stratification, and management. Am J Hematol 2016; 91:151-65. [PMID: 26607183 PMCID: PMC4715621 DOI: 10.1002/ajh.24233] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 11/03/2015] [Indexed: 12/11/2022]
Abstract
DISEASE OVERVIEW Cutaneous T-cell lymphomas are a heterogenous group of T-cell lymphoproliferative disorders involving the skin, the majority of which may be classified as Mycosis Fungoides (MF) or Sézary Syndrome (SS). DIAGNOSIS The diagnosis of MF or SS requires the integration of clinical and histopathologic data. RISK-ADAPTED THERAPY TNMB (tumor, node, metastasis, blood) staging remains the most important prognostic factor in MF/SS and forms the basis for a "risk-adapted," multidisciplinary approach to treatment. For patients with disease limited to the skin, expectant management or skin-directed therapies is preferred, as both disease-specific and overall survival for these patients is favorable. In contrast, patients with advanced-stage disease with significant nodal, visceral, or blood involvement are generally approached with biologic-response modifiers or histone deacetylase inhibitors before escalating therapy to include systemic, single-agent chemotherapy. In highly-selected patients, allogeneic stem-cell transplantation may be considered, as this may be curative in some patients.
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Affiliation(s)
- Ryan A. Wilcox
- Division of Hematology/Oncology, University of Michigan Cancer Center, 1500 E. Medical Center Drive, Room 4310 CC, Ann Arbor, MI 48109-5948
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Zhukov AS, Belousova IE, Samtsov AV. Immunological and molecular genetic mechanisms of the development of mycosis fungoides. VESTNIK DERMATOLOGII I VENEROLOGII 2015. [DOI: 10.25208/0042-4609-2015-91-4-42-50] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
This review reflects modern information about the possible mechanisms of skin lymphomas. Generalized the data of the possible etiologic factors of the disease. Described the basic pathogenesis and show practical importance identified molecular markers in the diagnosis and treatment of patients with lymphoproliferative diseases of the skin.
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Krzeminski P, Sarasquete ME, Misiewicz-Krzeminska I, Corral R, Corchete LA, Martín AA, García-Sanz R, San Miguel JF, Gutiérrez NC. Insights into epigenetic regulation of microRNA-155 expression in multiple myeloma. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2014; 1849:353-66. [PMID: 25497370 DOI: 10.1016/j.bbagrm.2014.12.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 11/07/2014] [Accepted: 12/02/2014] [Indexed: 11/28/2022]
Abstract
CONTEXT MiR-155 plays a critical role in the development of B-cell malignancies. Previous studies have shown a deregulation of miR-155 in specific cytogenetic subtypes of multiple myeloma (MM). However, the mechanisms that regulate miR-155 expression in MM are not fully understood. OBJECTIVE In the present study, we explored the regulation of miRNA-155 in MM by DNA methylation mechanisms and the impact of miR-155 expression in survival of MM patients. METHOD Primary samples were obtained from 95 patients with newly diagnosed myeloma. Methylation was analyzed by Methylation Specific PCR, sequencing of bisulfite treated DNA and luciferase assay. RESULTS qRT-PCR analysis revealed that miR-155 was differentially expressed in MM and its upregulation was associated with longer survival. DNA methylation of CpG island present in the first exon of miR-155 host gene was associated with its low expression in MM cell lines and patient samples. Our results showed for the first time that in vitro methylation of part of the promoter and first exon abrogated the miR-155 expression. We further showed that miR-155 expression in MM cell lines was increased by demethylating 5-aza-dC treatment and decreased by RNA-directed DNA methylation. Additionally, we found that LPS "immunological challenge" was insufficient to induce miR-155 expression in MM cell lines with methylated DNA around transcription start site (TSS). CONCLUSION This study provides evidence that DNA methylation contributes to miR-155 expression in myeloma cells. Interestingly, the survival data showed an association between miR-155 expression and outcome of MM.
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Affiliation(s)
- Patryk Krzeminski
- Servicio de Hematología, Hospital Universitario, IBSAL, IBMCC (USAL-CSIC), Salamanca, Spain.
| | - María E Sarasquete
- Servicio de Hematología, Hospital Universitario, IBSAL, IBMCC (USAL-CSIC), Salamanca, Spain
| | - Irena Misiewicz-Krzeminska
- Servicio de Hematología, Hospital Universitario, IBSAL, IBMCC (USAL-CSIC), Salamanca, Spain; National Medicines Institute, Warsaw, Poland
| | - Rocío Corral
- Servicio de Hematología, Hospital Universitario, IBSAL, IBMCC (USAL-CSIC), Salamanca, Spain
| | - Luis A Corchete
- Servicio de Hematología, Hospital Universitario, IBSAL, IBMCC (USAL-CSIC), Salamanca, Spain
| | - Ana A Martín
- Servicio de Hematología, Hospital Universitario, IBSAL, IBMCC (USAL-CSIC), Salamanca, Spain
| | - Ramón García-Sanz
- Servicio de Hematología, Hospital Universitario, IBSAL, IBMCC (USAL-CSIC), Salamanca, Spain
| | - Jesús F San Miguel
- Clínica Universidad de Navarra, Centro de Investigación Médica Aplicada, Pamplona, Navarra, Spain
| | - Norma C Gutiérrez
- Servicio de Hematología, Hospital Universitario, IBSAL, IBMCC (USAL-CSIC), Salamanca, Spain.
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Wilcox RA. Cutaneous T-cell lymphoma: 2014 update on diagnosis, risk-stratification, and management. Am J Hematol 2014; 89:837-51. [PMID: 25042790 DOI: 10.1002/ajh.23756] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 04/29/2014] [Indexed: 12/12/2022]
Abstract
DISEASE OVERVIEW Cutaneous T-cell lymphomas are a heterogenous group of T-cell lymphoproliferative disorders involving the skin, the majority of which may be classified as Mycosis Fungoides (MF) or Sézary Syndrome (SS). DIAGNOSIS The diagnosis of MF or SS requires the integration of clinical and histopathologic data. RISK-ADAPTED THERAPY TNMB (tumor, node, metastasis, and blood) staging remains the most important prognostic factor in MF/SS and forms the basis for a "risk-adapted," multidisciplinary approach to treatment. For patients with disease limited to the skin, expectant management or skin-directed therapies is preferred, as both disease-specific and overall survival for these patients is favorable. In contrast, patients with advanced-stage disease with significant nodal, visceral or blood involvement are generally approached with biologic-response modifiers or histone deacetylase inhibitors prior to escalating therapy to include systemic, single-agent chemotherapy. Multiagent chemotherapy (e.g., CHOP) may be employed for those patients with extensive visceral involvement requiring rapid disease control. In highly selected patients, allogeneic stem-cell transplantation may be considered.
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Affiliation(s)
- Ryan A. Wilcox
- Division of Hematology/Oncology; University of Michigan Cancer Center; Ann Arbor Michigan
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12
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Willerslev-Olsen A, Litvinov IV, Fredholm SM, Petersen DL, Sibbesen NA, Gniadecki R, Zhang Q, Bonefeld CM, Wasik MA, Geisler C, Zhou Y, Woetmann A, Sasseville D, Krejsgaard T, Odum N. IL-15 and IL-17F are differentially regulated and expressed in mycosis fungoides (MF). Cell Cycle 2014; 13:1306-12. [PMID: 24621498 DOI: 10.4161/cc.28256] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Skin lesions from mycosis fungoides (MF) patients display an increased expression of interleukin-15 (IL-15), IL-17F, and other cytokines implicated in inflammation and malignant cell proliferation in cutaneous T-cell lymphoma (CTCL). In the leukemic variant of CTCL, Sézary syndrome (SS), IL-2 and IL-15 trigger activation of the Jak-3/STAT3 pathway and transcription of IL17A gene, whereas it is unknown what causes IL-15 expression, Jak3/STAT3 activation, and production of IL-17F in MF. Here, we studied the expression and regulation of IL-15 and its relation to IL-17F in MF cell lines and skin lesions from 60 MF patients. We show that: (1) the spontaneous IL-15 mRNA expression is resistant to Jak3 and STAT3 inhibitors at concentrations that profoundly inhibit STAT3 activation and IL-17F mRNA expression; (2) anti-IL-15 antibody blocks STAT3 activation induced by exogenous IL-15 in non-malignant MF T cells, whereas the spontaneous STAT3 activation and IL-17F expression in malignant T cells is not inhibited; (3) patients display heterogeneous IL-15/IL-17F mRNA expression patterns in skin lesions; and (4) IL-15 expression (in contrast to IL-17F) is not associated with progressive disease. Taken together, these findings indicate that IL-15 and IL-17F are differentially regulated and expressed in MF. We propose that IL-15 and IL-17F are markers for different inflammatory environments and play distinct roles in the development and progression of MF.
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Affiliation(s)
- Andreas Willerslev-Olsen
- Department of International Health, Immunology, and Microbiology; University of Copenhagen; Copenhagen, Denmark
| | - Ivan V Litvinov
- Division of Dermatology; McGill University Health Centre; Montréal, Quebec, Canada
| | - Simon M Fredholm
- Department of International Health, Immunology, and Microbiology; University of Copenhagen; Copenhagen, Denmark
| | - David L Petersen
- Department of International Health, Immunology, and Microbiology; University of Copenhagen; Copenhagen, Denmark
| | - Nina A Sibbesen
- Department of International Health, Immunology, and Microbiology; University of Copenhagen; Copenhagen, Denmark
| | - Robert Gniadecki
- Departmen of Dermatology; Copenhagen University Hospital; Bispebjerg, Copenhagen, Denmark
| | - Qian Zhang
- Department of Pathology and Laboratory Medicine; University of Pennsylvania; Philadelphia, PA USA
| | - Charlotte M Bonefeld
- Department of International Health, Immunology, and Microbiology; University of Copenhagen; Copenhagen, Denmark
| | - Mariusz A Wasik
- Department of Pathology and Laboratory Medicine; University of Pennsylvania; Philadelphia, PA USA
| | - Carsten Geisler
- Department of International Health, Immunology, and Microbiology; University of Copenhagen; Copenhagen, Denmark
| | - Youwen Zhou
- Department of Dermatology and Skin Science; University of British Columbia; Vancouver, British Columbia, Canada
| | - Anders Woetmann
- Department of International Health, Immunology, and Microbiology; University of Copenhagen; Copenhagen, Denmark
| | - Denis Sasseville
- Division of Dermatology; McGill University Health Centre; Montréal, Quebec, Canada
| | - Thorbjørn Krejsgaard
- Department of International Health, Immunology, and Microbiology; University of Copenhagen; Copenhagen, Denmark
| | - Niels Odum
- Department of International Health, Immunology, and Microbiology; University of Copenhagen; Copenhagen, Denmark
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13
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Ikeda S, Tagawa H. Dysregulation of microRNAs and their association in the pathogenesis of T-cell lymphoma/leukemias. Int J Hematol 2014; 99:542-52. [PMID: 24567260 DOI: 10.1007/s12185-014-1535-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 01/19/2014] [Accepted: 02/04/2014] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) are non-coding regulatory RNAs consisting of 20-24 nucleotides. Over 4,500 miRNAs have been identified in humans, and it is known that nearly all human protein-encoding genes can be controlled by miRNAs in both healthy and malignant cells. Abnormal miRNA expression is known to occur in many cancers, including in malignant lymphomas (MLs). Detailed genome-wide miRNA expression analysis has been performed in various ML subtypes, and these analyses have led to the discovery of subtype-specific miRNA alterations. Actually, in B-cell lymphomas, several miRNAs have been used as prognostic markers, and their targets are for new agents for ML therapy. Successful studies for delineating miRNA functions in B-cell lymphomas lead us to hypothesize that miRNA dysregulation may also be deeply associated with the pathogenesis of T-cell lymphomas. Indeed, studies for delineating essential miRNAs have been conduced against comparatively well-defined T-cell lymphoma entities. In this review, we describe several key miRNAs and their targets in distinct T-cell lymphoma subsets and their roles in their pathogenesis, studies of which will lead to new therapeutic strategies against T-cell lymphomas.
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Affiliation(s)
- Sho Ikeda
- Department of Hematology, Nephrology, and Rheumatology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 0108543, Japan
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14
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van der Fits L, Rebel HG, Out-Luiting JJ, Pouw SM, Smit F, Vermeer KG, van Zijl L, Tensen CP, Weijer K, Vermeer MH. A novel mouse model for Sézary syndrome using xenotransplantation of Sézary cells into immunodeficient RAG2(-/-) γc(-/-) mice. Exp Dermatol 2013; 21:706-9. [PMID: 22897578 DOI: 10.1111/j.1600-0625.2012.01556.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Sézary syndrome (SS) is an aggressive cutaneous T-cell lymphoma with CD4+ tumor cells localized in the skin, lymph nodes and peripheral blood. Characteristic molecular aberrancies in SS have been identified; however, paucity of functional models severely hampered the translation of these observations into pathogenic mechanisms, and subsequent validation of novel therapeutic targets. We therefore developed a mouse model for SS using intrahepatic injection of SS cells in newborn immunodeficient RAG2(-/-) γc(-/-) mice that are completely devoid of T-, B- and NK-cell activity. Injection of the SS cell line SeAx led to long-term and reproducible systemic repopulation of the mice. Injection of mice with the SS cell line HuT-78 led to the death of the mice owing to massive growth of internal tumors. Four weeks after injection of primary SS cells, human CD3+ T cells could be tracked back in the liver, peripheral blood, lymph nodes, spleen and skin of the mice, although the engraftment rate varied when using cells from different patients. In conclusion, we demonstrate that injection of SS cell lines or primary cells in newborn RAG2(-/-) γc(-/-) mice results in long-term systemic repopulation of the mice, thereby providing a novel mouse model for Sézary syndrome.
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Affiliation(s)
- Leslie van der Fits
- Department of Dermatology, Leiden University Medical Center, Leiden, the Netherlands.
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15
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Döbbeling U, Waeckerle-Men Y, Zabel F, Graf N, Kündig TM, Johansen P. The antihistamines clemastine and desloratadine inhibit STAT3 and c-Myc activities and induce apoptosis in cutaneous T-cell lymphoma cell lines. Exp Dermatol 2013; 22:119-24. [DOI: 10.1111/exd.12086] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Udo Döbbeling
- Department of Dermatology; University Hospital Zurich; Zurich; Switzerland
| | - Ying Waeckerle-Men
- Department of Dermatology; University Hospital Zurich; Zurich; Switzerland
| | - Franziska Zabel
- Department of Dermatology; University Hospital Zurich; Zurich; Switzerland
| | - Nicole Graf
- Center for Clinical Research; University of Zurich; Zurich; Switzerland
| | - Thomas M. Kündig
- Department of Dermatology; University Hospital Zurich; Zurich; Switzerland
| | - Pål Johansen
- Department of Dermatology; University Hospital Zurich; Zurich; Switzerland
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Wilcox RA. Cutaneous T-cell lymphoma: 2011 update on diagnosis, risk-stratification, and management. Am J Hematol 2011; 86:928-48. [PMID: 21990092 DOI: 10.1002/ajh.22139] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
DISEASE OVERVIEW Cutaneous T-cell lymphomas are a heterogenous group of T-cell lymphoproliferative disorders involving the skin, the majority of which may be classified as Mycosis fungoides (MF) or Sézary syndrome (SS). DIAGNOSIS The diagnosis of MF or SS requires the integration of clinical and histopathologic data. RISK-ADAPTED THERAPY Tumor, node, metastasis, and blood (TNMB) staging remains the most important prognostic factor in MF/SS and forms the basis for a "risk-adapted," multidisciplinary approach to treatment. For patients with disease limited to the skin, expectant management or skin-directed therapies is preferred, as both disease-specific and overall survival for these patients is favorable. In contrast, patients with advanced-stage disease with significant nodal, visceral, or blood involvement are generally approached with biologic-response modifiers, denileukin diftitox, and histone deacetylase inhibitors before escalating therapy to include systemic, single-agent chemotherapy. Multiagent chemotherapy may be used for those patients with extensive visceral involvement requiring rapid disease control. In highly-selected patients with disease refractory to standard treatments, allogeneic stem-cell transplantation may be considered.
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Affiliation(s)
- Ryan A Wilcox
- Department of Internal Medicine, Division of Hematology/Oncology, University of Michigan Cancer Center, Ann Arbor, 48109-5948, USA. rywilcox@med. umich.edu
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STAT3 knockdown by siRNA induces apoptosis in human cutaneous T-cell lymphoma line Hut78 via downregulation of Bcl-xL. Cell Mol Biol Lett 2010; 15:342-55. [PMID: 20213502 PMCID: PMC6275771 DOI: 10.2478/s11658-010-0008-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2009] [Accepted: 03/01/2010] [Indexed: 01/23/2023] Open
Abstract
Cutaneous T-cell lymphomas (CTCLs) are non-Hodgkin's lymphomas resulting from clonal expansion and localization of malignant T-lymphocytes to the skin. CTCL cells have defective apoptosis. Signal transducers and activators of transcription (STAT) are a family of transcription factors known to play important roles in the development and progression of several human cancers by promoting cell proliferation and protecting against apoptosis. In this study, we investigated the specific role of STAT3, a major component of the STAT family, in growth and survival of human CTCL cell line Hut78. Western immunoblot analysis showed elevated expression of STAT3 and phospho-STAT3(Y705) in human CTCL cells as compared to freshly isolated peripheral blood lymphocytes (PBLs). Specific knockdown of STAT3 expression in Hut78 cells by RNA interference induced morphological and biochemical changes indicating apoptotic cell death. Moreover, STAT3 inhibition downregulated the expression of Bcl2 family of anti-apoptotic gene Bcl-xL. These observations suggest that STAT3 is required for the survival of CTCL cells and strongly indicate that targeting STAT3 using siRNA techniques may serve a novel therapeutic strategy for the treatment of CTCL.
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18
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Doebbeling U. A mouse model for the Sézary syndrome. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2010; 29:11. [PMID: 20149229 PMCID: PMC2845106 DOI: 10.1186/1756-9966-29-11] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Accepted: 02/11/2010] [Indexed: 11/10/2022]
Abstract
BACKGROUND The Sézary syndrome is an aggressive leukemic form of cutaneous T cell lymphoma and there is no cure of this disease. Until now there is no true animal model for Sézary syndrome, by which new drugs against the disease could be tested. METHODS Immune deficient CB-17 SCID beige mice were injected subcutaneously with HUT78 cells, a cell line, derived from a Sézary syndrome patient. Developing tumors were analyzed by immunohistochemistry. RESULTS Injected HUT78 cells formed tumors at the site of injection. In contrast to the Sézary syndrome in man, no malignant cells were observed in the blood of tumor bearing CB-17 SCID beige mice. The tumors appeared 44-62 days after injection and tumor bearing mice survived further 25 - 62 days until they had to be euthanized according to the guidelines of the Swiss animal protection law, since the tumors had reached the maximal allowed size. CONCLUSION Although the mouse model does not exactly match the human disease, it will be suited for tests of new substances for the treatment of the Sézary syndrome. The formation of an isolated tumor on the skin has the advantage that the effect of a potential drug can be directly monitored without the use of invasive methods.
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Affiliation(s)
- Udo Doebbeling
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.
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19
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Pichardo DA, Querfeld C, Guitart J, Kuzel TM, Rosen ST. Cutaneous T-Cell Lymphoma: A Paradigm for Biological Therapies. Leuk Lymphoma 2009; 45:1755-65. [PMID: 15223633 DOI: 10.1080/10428190410001693560] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Mycosis Fungoides and Sézary Syndrome are the most common types of cutaneous T-cell lymphomas. There is no current standard of care for Mycosis Fungoides/Sézary Syndrome, with a general tendency to rely on topical interventions for early disease delaying systemic, more toxic therapy until the development of extensive symptoms. Knowledge of the biological characteristics of this disease has allowed for the development of rational interventions and a significant advance in its treatment. Retinoids are active in Mycosis Fungoides/Sézary Syndrome with the newer rexinoids being available in topical and systemic forms. Interferon alpha remains one of the most active therapeutic agents for Mycosis Fungoides/Sézary Syndrome, especially in combination with other agents such as PUVA. The monoclonal antibody alemtuzumab leads to responses in at least half of patients with advanced disease with its side effect profile consisting mainly of immunosupression and infusion reactions. The recombinant IL2-diphteria toxin denileukin diftitox (Ontak) is active in this disease and appears to have a beneficial effect in symptoms relief and quality of life. Extracorporeal photochemotherapy as an immunostimulating intervention seems to be very effective in a subset of patients, but its availability is limited to less than a hundred centers worldwide. Experimental and less studied interventions include autologous and allogeneic peripheral stem cell transplantation, Interleukin-12, the histone-deacetylator depsipeptide and the synthetic deoxynucleotide CpG7909. Cutaneous T-cell lymphoma has served as a paradigm for the development of biological agents. Further knowledge of the signaling pathways in Mycosis Fungoides/Sézary Syndrome will allow for the development of more effective treatment strategies.
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Affiliation(s)
- D A Pichardo
- Division of Hematology-Oncology, Department of Medicine, Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine of Northwestern University, Chicago, IL 60611, USA.
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20
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Mao X, Orchard G, Mitchell TJ, Oyama N, Russell-Jones R, Vermeer MH, Willemze R, van Doorn R, Tensen CP, Young BD, Whittaker SJ. A genomic and expression study of AP-1 in primary cutaneous T-cell lymphoma: evidence for dysregulated expression of JUNB and JUND in MF and SS. J Cutan Pathol 2008; 35:899-910. [PMID: 18494816 DOI: 10.1111/j.1600-0560.2007.00924.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Activator protein 1 (AP-1) consists of a group of transcription factors including the JUN and FOS family proteins with diverse biological functions. This study assessed the genomic and expression status of the AP-1 transcription factors in primary cutaneous T-cell lymphoma (CTCL) by using immunohistochemistry (IHC), Affymetrix expression microarray, real-time reverse transcriptase-polymerase chain reaction (RT-PCR) and fluorescent in situ hybridization (FISH). IHC showed JUNB protein expression in tumor cells from 17 of 33 cases of Sezary syndrome (SS) and JUND protein expression in 16 of 23 mycosis fungoides cases. There was no correlation between JUNB and CD30 expression. However, 7 of 12 JUNB-positive SS cases expressed both phosphorylated and total extracellular signal-regulated kinase (ERK) 1/2 mitogen-activated protein kinase (MAPK) proteins. Expression microarray showed over threefold increased expression of JUNB in three of six SS patients and similar findings were also noted after re-analysis of previously published data. Real-time RT-PCR confirmed the overexpression of JUNB in four SS cases and of JUND in three of four cases. FISH showed increased JUNB copy number in four of seven SS cases. These findings suggest that deregulation of AP-1 expression in CTCL is the result of aberrant expression of JUNB and possible JUND resulting from genomic amplification and constitutive activation of ERK1/2 MAPK in this type of lymphoma.
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Affiliation(s)
- Xin Mao
- Skin Tumour Unit, St John's Institute of Dermatology, St Thomas' Hospital, London, UK.
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21
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Tun-Kyi A, Qin JZ, Oberholzer PA, Navarini AA, Hassel JC, Dummer R, Döbbeling U. Arsenic trioxide down-regulates antiapoptotic genes and induces cell death in mycosis fungoides tumors in a mouse model. Ann Oncol 2008; 19:1488-1494. [PMID: 18349030 DOI: 10.1093/annonc/mdn056] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Mycosis fungoides (MF) is the most frequent cutaneous T-cell lymphoma (CTCL). Arsenic trioxide (As(2)O(3)) has recently been shown to be effective against leukemias, so we studied whether As(2)O(3) induces apoptosis of CTCL cells in vitro. We further investigated if As(2)O(3) is effective in a MF mouse model. MATERIAL AND METHODS Annexin V/7-amino-actinomycin-D stainings were carried out to investigate if As(2)O(3) induced apoptosis of CTCL cell lines. To study the underlying mechanisms, the effects of As(2)O(3) on various transcription factors and apoptosis regulating proteins were analyzed by western blots, electrophoretic mobility shift assays and transcription factor enzyme-linked immunosorbent assays. The ability of As(2)O(3) to induce tumor regression was investigated in a MF mouse model. RESULTS As(2)O(3)-induced apoptosis was paralleled by a reduction of the DNA-binding activities of transcription factors of the NFkB and signal transducer and activator of transcription gene families and reduced expression of the antiapoptotic proteins bcl-1, bcl-xL and mcl-1. Local injections of 200 muM As(2)O(3) into tumors caused complete remissions in five of six mice and one partial remission. CONCLUSIONS As(2)O(3) induced apoptosis of CTCL cells by the down-regulation of transcription factors that stimulate the expression of antiapoptotic genes. Local injection of As(2)O(3) into MF tumor-bearing mice resulted in tumor regression.
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Affiliation(s)
- A Tun-Kyi
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland; Harvard Medical School, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Institutes of Medicine, Boston, USA
| | - J-Z Qin
- Skin Disease Research Laboratories, Oncology Institute, Loyola University Medical Center, Maywood, IL, USA
| | - P A Oberholzer
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - A A Navarini
- Institute for Experimental Immunology, University Hospital Zurich, Zurich, Switzerland
| | - J C Hassel
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - R Dummer
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - U Döbbeling
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland.
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Dummer R, Asagoe K, Cozzio A, Burg G, Doebbeling U, Golling P, Fujii K, Urosevic M. Recent advances in cutaneous lymphomas. J Dermatol Sci 2007; 48:157-67. [PMID: 17964121 DOI: 10.1016/j.jdermsci.2007.09.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2007] [Accepted: 09/04/2007] [Indexed: 10/22/2022]
Abstract
Cutaneous lymphomas are a heterogeneous group of extranodal lymphomas that are characterized by an initial accumulation of mononuclear, mostly lymphocytic cells in the skin. Recent discoveries of changes in molecular biology and immunology of these tumors have paved the way to a better understanding of the processes that govern lymphomagenesis in the skin and more importantly, they have contributed to the development of the new WHO-EORTC classification system. Only now has the field of cutaneous lymphomas gained a novel, long-awaited basis that may act as a new starting point in the collection of clinical as well molecular and immunological data on comparative basis. This review will try to highlight the newest findings in the pathogenesis of primary cutaneous T- and B-cell lymphomas, hematodermic neoplasm and HTLV-1 positive disorders as well as their translation into efficient therapeutic strategies.
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Affiliation(s)
- Reinhard Dummer
- Department of Dermatology, University Hospital Zürich, Gloriastrasse 31, CH-8091 Zürich, Switzerland.
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23
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Mao X, Orchard G, Russell-Jones R, Whittaker S. Abnormal activator protein 1 transcription factor expression in CD30-positive cutaneous large-cell lymphomas. Br J Dermatol 2007; 157:914-21. [PMID: 17725669 DOI: 10.1111/j.1365-2133.2007.08150.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND CD30+ cutaneous large-cell lymphomas (CLCL) represent a heterogeneous subgroup of skin lymphomas including primary cutaneous CD30+ anaplastic large-cell lymphoma (C-ALCL), lymphomatoid papulosis (LyP), transformed mycosis fungoides (T-MF) and Hodgkin's lymphoma (HL) with cutaneous involvement. The activator protein 1 (AP-1) transcription factor consists of JUN, FOS and other protein families. Recent studies have revealed upregulation of JUNB in both MF and C-ALCL and overexpression of JUNB and CD30 in systemic HL and ALCL. OBJECTIVES To assess systematically the expression pattern of AP-1 transcription factors in CLCL. METHODS We analysed paraffin tissue sections from 27 patients with LyP, 10 with C-ALCL, eight with T-MF and two with cutaneous HL by immunohistochemistry with antibodies against c-JUN, JUNB, JUND, c-FOS and RAF-1. We also stained samples from 10 patients with C-ALCL, seven with Sézary syndrome (SS), six with T-MF, three with cutaneous HL, two with LyP and control samples with total and phosphorylated mitogen-activated protein kinase (MAPK) antibodies. Results Positive staining for JUND (++) was observed in 13 cases of LyP (48%), 10 C-ALCL, six T-MF (75%) and two cutaneous HL cases. Positive JUNB protein expression was present in four cases of T-MF (50%), four C-ALCL (44%), three LyP (11%) and two cutaneous HL. Expression of total (p44/42) MAP kinase and phosphorylated p44/42 MAP kinase were detected in nine cases of C-ALCL (90%), seven SS (88%), five T-MF (89%) and three cutaneous HL. Most of these samples also showed positive staining for JUNB. CONCLUSION These results suggest the presence of abnormal AP-1 protein expression in CLCL, which may be relevant to CLCL.
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Affiliation(s)
- X Mao
- Skin Tumour Unit, St John's Institute of Dermatology, St Thomas' Hospital, King's College London, UK.
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24
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Zhang C, Toulev A, Kamarashev J, Qin JZ, Dummer R, Döbbeling U. Consequences of p16 tumor suppressor gene inactivation in mycosis fungoides and Sézary syndrome and role of the bmi-1 and ras oncogenes in disease progression. Hum Pathol 2007; 38:995-1002. [PMID: 17442375 DOI: 10.1016/j.humpath.2006.10.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2006] [Revised: 10/05/2006] [Accepted: 10/06/2006] [Indexed: 01/07/2023]
Abstract
In examining the expression of oncogenes and tumor suppressor genes in mycosis fungoides and Sézary syndrome, we found the cell cycle-regulating protein p16 to be absent in T cells. Immunohistochemical staining with p16-specific antibodies showed that the number of p16-expressing cells in cutaneous lesions decreases in late stages. The repression of p16 was not attributable to deletion or methylation of this gene; however, the Bmi-1 oncogene, a known suppressor of p16, was present in mycosis fungoides and Sézary syndrome cell lines and skin lesions. The absence of p16 correlated with the phosphorylation of the retinoblastoma protein on cyclin D/CDK4- or cyclin D/CDK6-specific sites. Ki-ras, which stimulates phosphorylation of retinoblastoma via cyclin-dependent kinases, was found in all tested cutaneous T-cell lymphoma samples; and its expression generally was stronger in advanced stages. Thus, cutaneous T-cell lymphoma cells show changes in oncogene and tumor suppressor gene expression that increase proliferation.
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Affiliation(s)
- Chunlei Zhang
- Department of Dermatology, University Hospital of Zurich, CH-8091 Zurich, Switzerland
| | - Albena Toulev
- Department of Dermatology, University Hospital of Zurich, CH-8091 Zurich, Switzerland
| | - Jivko Kamarashev
- Department of Dermatology, University Hospital of Zurich, CH-8091 Zurich, Switzerland
| | - Jian-Zhong Qin
- Department of Dermatology, University Hospital of Zurich, CH-8091 Zurich, Switzerland
| | - Reinhard Dummer
- Department of Dermatology, University Hospital of Zurich, CH-8091 Zurich, Switzerland
| | - Udo Döbbeling
- Department of Dermatology, University Hospital of Zurich, CH-8091 Zurich, Switzerland.
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25
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Efficacy and tolerability of currently available therapies for the mycosis fungoides and Sezary syndrome variants of cutaneous T-cell lymphoma. Cancer Treat Rev 2007; 33:146-60. [PMID: 17275192 DOI: 10.1016/j.ctrv.2006.08.006] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2006] [Revised: 08/30/2006] [Accepted: 08/31/2006] [Indexed: 12/17/2022]
Abstract
Primary cutaneous T-cell lymphomas are a heterogenous group of non-Hodgkin lymphomas. The characteristic clinicopathologic and immunophenotypic features and prognoses of the various cutaneous lymphomas have been recently described by the World Health Organization and European Organization for Research and Treatment of Cancer. Cutaneous T-cell lymphoma variants include mycosis fungoides and Sezary syndrome, which are generally associated, respectively, with indolent and aggressive clinical courses and are the subject of this review. Currently utilized treatments for cutaneous T-cell lymphoma include skin-directed therapies (topical agents such as corticosteroids, mechlorethamine, carmustine, and retinoids, phototherapy, superficial radiotherapy, and total skin electron beam therapy), systemic therapies (photophoresis, retinoids, denileukin diftitox, interferons, and chemotherapy), and stem cell transplantation (autologous and allogeneic). This review will describe recent advances in our understanding of the biology (immunologic, cytogenetic, and genetic) of cutaneous T-cell lymphomas and discuss the efficacy and tolerability of the current therapeutic options for cutaneous T-cell lymphomas. Disease progression in over 20% of patients with early stages of disease and the current lack of a definitive treatment which produces durable responses in advanced stages of disease indicates a critical unmet need in CTCL. New insights into the molecular and immunologic changes associated with cutaneous T-cell lymphomas should ultimately lead to the identification of novel therapeutic targets and the development of improved therapeutic options for patients with these malignancies.
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Wong HK, Wilson AJ, Gibson HM, Hafner MS, Hedgcock CJ, Berger CL, Edelson RL, Lim HW. Increased expression of CTLA-4 in malignant T-cells from patients with mycosis fungoides -- cutaneous T cell lymphoma. J Invest Dermatol 2006; 126:212-9. [PMID: 16417239 DOI: 10.1038/sj.jid.5700029] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Mycosis fungoides (MF) is a low-grade lymphoma of cluster of differentiation (CD)4+, CD45RO+, cutaneous leukocyte antigen (CLA)+ T cells that homes to the skin. To understand the functional abnormalities in this disease, we study the regulation of cytotoxic T-lymphocyte antigen (CTLA)-4 in peripheral blood mononuclear cells (PBMCs) from patients with MF. CTLA-4 is a costimulatory molecule for T cells that functions in immunoregulation. Unlike the expression of CD28, which is expressed constitutively on T cells, CTLA-4 expression is highly regulated. In the analysis of PBMCs in MF, we found that CTLA-4 is stimulated by phorbol myristate acetate/A23187 to a greater level when compared to normals. This defect was seen in the dominant clones of T cells. The increased CTLA-4 expression was significant between normal and MF, with a correlation between higher expression of CTLA-4 and a higher grade of MF. In a patient whose disease progressed, the CTLA-4 level increased. The abnormal level of CTLA-4 was confirmed at both the transcription and translation levels. Although MF is associated with a Th2 bias, Th1 cytokines IL-2 and IFN-gamma enhanced CTLA-4 expression, while IL-4 did not. These findings reveal an abnormal regulation of CTLA-4 expression in MF and show that PBMCs from patients with MF have properties that are divergent from those of normal T cells.
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Affiliation(s)
- Henry K Wong
- Department of Dermatology, Henry Ford Hospital, Detroit, Michigan 48202, USA.
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Poenitz N, Simon-Ackermann J, Gratchev A, Qadoumi M, Klemke CD, Stadler R, Kremer A, Radenhausen M, Henke U, Assaf C, Utikal J, Goerdt S, Dippel E. Overexpression of c- myb in Leukaemic and Non-Leukaemic Variants of Cutaneous T-Cell Lymphoma. Dermatology 2005; 211:84-92. [PMID: 16088151 DOI: 10.1159/000086434] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2004] [Accepted: 10/25/2004] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The c-myb oncogene is a transcription factor that regulates proliferation, differentiation and apoptosis of haematopoietic cells and activated T cells by binding to promoter sequences of such genes as c-myc or bcl-2 that are expressed in cutaneous T-cell lymphoma (CTCL). OBJECTIVE Our study was performed in order to evaluate c-myb expression as a quantitative parameter for differential diagnosis in leukaemic and non-leukaemic variants of CTCL. METHODS c-myb expression was analysed in lesional skin and in the peripheral blood of 21 patients with mycosis fungoides (MF), 15 patients with Sézary syndrome (SS) and 15 patients with inflammatory skin diseases using immunohistochemistry and semiquantitative as well as quantitative RT-PCR. RESULTS Immunohistochemistry confirmed expression of c-myb in the lesional skin of the majority of CTCL patients with a tendency towards higher expression in SS (1.86 +/- 0.5) versus MF (1.2 +/- 0.7) while c-myb was absent from the lesional skin of patients with inflammatory skin diseases. c-myb was overexpressed in the peripheral blood in all SS patients (100% SS vs. 35.7% MF) at a high expression level (51,335.31 +/- 31,960.32 AU in SS vs. 1,226.35 +/- 1,258.29 AU in MF using semiquantitative RT-PCR, and 5.72 x 10(-2) +/- 2.27 x 10(-2) in SS vs. 0.91 x 10(-2) +/- 1.18 x 10(-2) in MF vs. 0.24 x 10(-2) +/- 0.11 x 10(-2) in inflammatory skin disease using quantitative RT-PCR). CD4+ cells from the peripheral blood of SS patients and cell lines in vitro showed the highest c-myb expression levels upon quantitative RT-PCR (23.27 x 10(-2) and 10.78 x 10(-2) +/- 7.24 x 10(-2)). CONCLUSION Overexpression of c-myb in skin lesions of both non-leukaemic and leukaemic CTCL independent of the stage of the disease indicates that it acts early in disease development. Nevertheless, if positive, c-myb expression in lesional skin is a clear-cut diagnostic marker for CTCL as compared to inflammatory skin diseases. High-level expression of c-myb in the peripheral blood as assessed by quantitative RT-PCR constitutes an additional diagnostic parameter for SS and may be especially useful in cases in which morphological determination of Sézary cells or FACS analysis of CD7 and CD26 remain inconclusive.
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MESH Headings
- Adult
- Age Factors
- Aged
- Aged, 80 and over
- Biomarkers, Tumor/blood
- Blotting, Southern
- Case-Control Studies
- Cohort Studies
- Female
- Gene Expression Regulation, Neoplastic
- Genes, myb/genetics
- Humans
- Immunohistochemistry
- Lymphoma, T-Cell, Cutaneous/blood
- Lymphoma, T-Cell, Cutaneous/genetics
- Lymphoma, T-Cell, Cutaneous/pathology
- Male
- Middle Aged
- Mycosis Fungoides/blood
- Mycosis Fungoides/genetics
- Mycosis Fungoides/pathology
- Neoplasm Staging
- Prognosis
- Reference Values
- Reverse Transcriptase Polymerase Chain Reaction
- Risk Assessment
- Sensitivity and Specificity
- Sex Factors
- Sezary Syndrome/genetics
- Sezary Syndrome/mortality
- Sezary Syndrome/pathology
- Skin Neoplasms/genetics
- Skin Neoplasms/mortality
- Skin Neoplasms/pathology
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Affiliation(s)
- N Poenitz
- Department of Dermatology, Venereology and Allergology, University Medical Centre Mannheim, Ruprecht Karl University of Heidelberg, Mannheim, Germany.
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Mori N, Matsuda T, Tadano M, Kinjo T, Yamada Y, Tsukasaki K, Ikeda S, Yamasaki Y, Tanaka Y, Ohta T, Iwamasa T, Tomonaga M, Yamamoto N. Apoptosis induced by the histone deacetylase inhibitor FR901228 in human T-cell leukemia virus type 1-infected T-cell lines and primary adult T-cell leukemia cells. J Virol 2004; 78:4582-90. [PMID: 15078940 PMCID: PMC387669 DOI: 10.1128/jvi.78.9.4582-4590.2004] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Inhibition of histone deacetylase (HDAC) activity induces growth arrest, differentiation, and, in certain cell types, apoptosis. FR901228, FK228, or depsipeptide, is an HDAC inhibitor effective in T-cell lymphomas. Adult T-cell leukemia (ATL) is caused by human T-cell leukemia virus type 1 (HTLV-1) and remains incurable. We examined whether FR901228 is effective for treatment of ATL by assessing its ability to induce apoptosis of HTLV-1-infected T-cell lines and primary leukemic cells from ATL patients. FR901228 induced apoptosis of Tax-expressing and -unexpressing HTLV-1-infected T-cell lines and selective apoptosis of primary ATL cells, especially those of patients with acute ATL. FR901228 also efficiently reduced the DNA binding of NF-kappaB and AP-1 in HTLV-1-infected T-cell lines and primary ATL cells and down-regulated the expression of Bcl-x(L) and cyclin D2, regulated by NF-kappaB. Although the viral protein Tax is an activator of NF-kappaB and AP-1, FR901228-induced apoptosis was not associated with reduced expression of Tax. In vivo use of FR901228 partly inhibited the growth of tumors of HTLV-1-infected T cells transplanted subcutaneously in SCID mice. Our results indicated that FR901228 could induce apoptosis of these cells and suppress the expression of NF-kappaB and AP-1 and suggest that FR901228 could be therapeutically effective in ATL.
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Affiliation(s)
- Naoki Mori
- Division of Molecular Virology and Oncology, Faculty of Medicine, University of the Ryukyus, Nishihara, Okinawa 903-0215, Japan.
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Zhang CL, Kamarashev J, Qin JZ, Burg G, Dummer R, Döbbeling U. Expression of apoptosis regulators in cutaneous T-cell lymphoma (CTCL) cells. J Pathol 2003; 200:249-54. [PMID: 12754746 DOI: 10.1002/path.1341] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This study examined cutaneous T-cell lymphoma (CTCL) cell lines and cutaneous lesions for the presence of Bcl-2 gene family members and found that the two apoptosis-inhibiting members Bcl-xL and Mcl-1 and the two apoptosis-supporting members Bad and Bax were expressed. However, Bad was at least partially inactivated by phosphorylation. In skin lesions, the translocation of Bad from the nucleus to the cytoplasm may reflect the Bad inactivation by phosphorylation identified in vivo. Bax is also ineffective, as the non-steroidal anti-inflammatory drug sulindac, whose cytotoxic effect is mediated by Bax, could not induce apoptosis in CTCL cell lines. The expression of Bcl-2, Bcl-xL, and Mcl-1 may therefore be sufficient to guarantee the survival of malignant CTCL cells. The Bcl-x, Mcl-1, Bad, and Bax proteins were also expressed in all CTCL skin lesions tested. In two patients from whom two biopsies from two different time points of the disease were available, a significant increase in Mcl-1 expression was found in the later-stage skin lesion. Overexpression of Mcl-1 and synthesis of non-functional Bax may be responsible for the resistance of CTCL cells to the anti-cancer drugs chlorambucil and sulindac.
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Affiliation(s)
- Chun-Lei Zhang
- Department of Dermatology, University Hospital of Zurich, CH-8091 Zürich, Switzerland
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30
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Nicolaou F, Teodoridis JM, Park H, Georgakis A, Farokhzad OC, Böttinger EP, Da Silva N, Rousselot P, Chomienne C, Ferenczi K, Arnaout MA, Shelley CS. CD11c gene expression in hairy cell leukemia is dependent upon activation of the proto-oncogenes ras and junD. Blood 2003; 101:4033-41. [PMID: 12576324 DOI: 10.1182/blood-2002-01-0324] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Hairy cell leukemia (HCL) is a chronic lymphoproliferative disease, the cause of which is unknown. Diagnostic of HCL is abnormal expression of the gene that encodes the beta2 integrin CD11c. In order to determine the cause of CD11c gene expression in HCL the CD11c gene promoter was characterized. Transfection of the CD11c promoter linked to a luciferase reporter gene indicated that it is sufficient to direct expression in hairy cells. Mutation analysis demonstrated that of predominant importance to the activity of the CD11c promoter is its interaction with the activator protein-1 (AP-1) family of transcription factors. Comparison of nuclear extracts prepared from hairy cells with those prepared from other cell types indicated that hairy cells exhibit abnormal constitutive expression of an AP-1 complex containing JunD. Functional inhibition of AP-1 expressed by hairy cells reduced CD11c promoter activity by 80%. Inhibition of Ras, which represents an upstream activator of AP-1, also significantly inhibited the CD11c promoter. Furthermore, in the hairy cell line EH, inhibition of Ras signaling through mitogen-activated protein kinase/extracellular signal-regulated kinase kinases 1 and 2 (MEK1/2) reduced not only CD11c promoter activity but also reduced both CD11c surface expression and proliferation. Expression in nonhairy cells of a dominant-positive Ras mutant activated the CD11c promoter to levels equivalent to those in hairy cells. Together, these data indicate that the abnormal expression of the CD11c gene characteristic of HCL is dependent upon activation of the proto-oncogenes ras and junD.
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Affiliation(s)
- Fotini Nicolaou
- Renal Unit, Massachusetts General Hospital, Charlestown, MA 02129, USA
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Burg G, Kempf W, Haeffner A, Döbbeling U, Nestle FO, Böni R, Kadin M, Dummer R. From inflammation to neoplasia: new concepts in the pathogenesis of cutaneous lymphomas. Recent Results Cancer Res 2002; 160:271-80. [PMID: 12079224 DOI: 10.1007/978-3-642-59410-6_32] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Mycosis fungoides is a clinicopathologic term which describes a neoplasm of cerebriform T lymphocytes that form plaques and tumors. We further suggest that mycosis fungoides arises in a background of chronic inflammation or as a response to chronic antigenic stimulation. Subsequently, a series of mutations results in the stepwise progression from eczematous patches, to plaques, tumors and eventual hematogenous dissemination. The pathogenetic process is driven by various, probably individually different, exogenous factors, e.g. environmental foreign antigens, bacterial superantigen, and/or endogenous factors, e.g. autocrine cytokine loops, CD40/CD40L and B7/CD28 interaction.
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Affiliation(s)
- Günter Burg
- Department of Dermatology, University Hospital of Zurich, Zürich, Switzerland
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De Panfilis G. 'Activation-induced cell death': a special program able to preserve the homeostasis of the skin? Exp Dermatol 2002; 11:1-11. [PMID: 11952823 DOI: 10.1034/j.1600-0625.2002.110101.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The 'activation-induced cell death' (AICD) is a molecular system leading to death of antigen-activated T lymphocytes, in order to avoid accumulation of harmful cytokine-releasing cells. This article reviews both the molecular mechanisms working in AICD and the role played by such mechanisms in preventing a number of skin diseases. Specifically, because AICD removes activated and autoreactive T cells through a CD95-/CD95-L-mediated suicide, skin diseases were scrutinized in which such valuable machinery could be lacking. Indeed, at least some inflammatory skin diseases, including psoriasis and atopic dermatitis, can be sustained by an increased survival of activated T lymphocytes associated with deficient CD95-/CD95-L-mediated AICD of such strong pro-inflammatory cells. In addition, autoreactive skin diseases, including, e.g. alopecia areata, lichen planus and other lichenoid tissue reactions, can be related to autoreactive T lymphocytes which could be unable to undergo CD95-/CD95-L-mediated AICD. Finally, a lack of AICD may be executive even in favoring cutaneous T cell lymphoma. Thus, because inflammatory, autoreactive and neoplastic skin diseases can be associated with a deficient CD95-/CD95-L-mediated suicide of activated T cells, AICD is likely to represent a fundamental program to preserve the homeostasis of the skin. Therapeutic approaches able to restore the AICD machinery promise to successfully treat such relevant skin diseases.
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Muche JM, Sterr W. Tumor biology in cutaneous malignant lymphomas. J Dermatol 2001; 28:606-9. [PMID: 11770715 DOI: 10.1111/j.1346-8138.2001.tb00043.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J M Muche
- Department of Dermatology and Allergy, Charité Berlin, Germany
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Qin JZ, Kamarashev J, Zhang CL, Dummer R, Burg G, Döbbeling U. Constitutive and interleukin-7- and interleukin-15-stimulated DNA binding of STAT and novel factors in cutaneous T cell lymphoma cells. J Invest Dermatol 2001; 117:583-9. [PMID: 11564163 DOI: 10.1046/j.0022-202x.2001.01436.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
On testing cutaneous T cell lymphoma cell lines and skin lesions, we found that the transcription factors STAT2, STAT3, STAT5, and STAT6 (STAT, signal transducer and activator of transcription) were present in the nuclei of these cells and that the binding to their specific DNA binding sites was stimulated by interleukin-7 and interleukin-15. DNA binding studies also revealed the presence of three additional DNA factors in cutaneous T cell lymphoma cells that bound to the same sequences and could also be stimulated by interleukin-7 and interleukin-15. One of these novel factors was also present in the adult T cell leukemia cell line Jurkat and malignant T cells from the blood of Sézary syndrome patients, but not in normal peripheral blood lymphocytes. It may therefore be a marker of T cell leukemia. It seems to interfere with the binding of STAT1 to the sis inducible element, suggesting that the DNA binding activity of STAT1 in cutaneous T cell lymphoma cells is disturbed.
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Affiliation(s)
- J Z Qin
- Department of Dermatology, University Hospital of Zürich, Zürich, Switzerland
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35
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Affiliation(s)
- T A Fehniger
- Departments of Internal Medicine and Molecular Virology, Immunology, and Medical Genetics, Divisions of Hematology/Oncology and Human Cancer Genetics, The Ohio State University, Columbus, OH 43210, USA
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