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Vitiello P, Sagnelli C, Ronchi A, Franco R, Caccavale S, Mottola M, Pastore F, Argenziano G, Creta M, Calogero A, Fiorelli A, Casale B, Sica A. Multidisciplinary Approach to the Diagnosis and Therapy of Mycosis Fungoides. Healthcare (Basel) 2023; 11:healthcare11040614. [PMID: 36833148 PMCID: PMC9957453 DOI: 10.3390/healthcare11040614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/10/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
Mycosis fungoides is the most common primary cutaneous T-cell lymphoma, characterized by skin-homing CD4+ T cells derivation, indolent course, and low-grade of malignancy. Mycosis fungoides's classic type typically onsets with cutaneous erythematous patches, plaque, and tumor. In WHO-EORTC classification, folliculotropic mycosis fungoides, pagetoid reticulosis, and granulomatous slack skin are recognized as distinct variants of mycosis fungoides, because of their clinical and histological features, behavior, and /or prognosis. Mycosis fungoides often shows diagnostic difficulties, due to its absence of specific features and lesional polymorphism. A patient's treatment requires staging. In about 10% of cases, mycosis fungoides can progress to lymph nodes and internal organs. Prognosis is poor at advanced stage and management needs a multidisciplinary team approach. Advanced stage disease including tumors, erythroderma, and nodal, visceral, or blood involvement needs skin directed therapy associated with systemic drugs. Skin directed therapy includes steroids, nitrogen mustard, bexarotene gel, phototherapy UVB, and photochemiotherapy, i.e., total skin electron radiotherapy. Systemic therapies include retinoids, bexarotene, interferon, histone deacetylase inhibitors, photopheresis, targeted immunotherapy, and cytotoxic chemotherapy. Complexity of mycosis fungoides associated with long-term chronic evolution and multiple therapy based on disease stage need a multidisciplinary team approach to be treated.
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Affiliation(s)
- Paola Vitiello
- Dermatology Unit, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Caterina Sagnelli
- Department of Mental Health and Public Medicine, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
- Correspondence: ; Tel.: +39-39-3810-7860
| | - Andrea Ronchi
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Renato Franco
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Stefano Caccavale
- Dermatology Unit, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Maria Mottola
- Department of Heart Surgery and Transplantations, AORN Dei Colli-V Monaldi, 80131 Naples, Italy
| | | | - Giuseppe Argenziano
- Dermatology Unit, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Massimiliano Creta
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples Federico II, 80131 Naples, Italy
| | - Armando Calogero
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Alfonso Fiorelli
- Thoracic Surgery Unit, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Beniamino Casale
- Department of Pneumology and Tisiology, AO Dei Colli-V. Monaldi, 80131 Naples, Italy
| | - Antonello Sica
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
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2
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Kumar S, Dhamija B, Attrish D, Sawant V, Sengar M, Thorat J, Shet T, Jain H, Purwar R. Genetic alterations and oxidative stress in T cell lymphomas. Pharmacol Ther 2022; 236:108109. [PMID: 35007658 DOI: 10.1016/j.pharmthera.2022.108109] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 12/20/2022]
Abstract
T cell lymphomas encompass a diverse group of Non-Hodgkin lymphomas with a wide spectrum of clinical, immunological and pathological manifestations. In the last two decades there has been a progress in our understanding of the cell of origin, genetic abnormalities and their impact on behaviour in T cell lymphomas. Genetic alterations are one of the critical drivers of the pathogenesis of T cell lymphoma. Disease progression has been correlated with multiple genetic abnormalities where malignant clones arise primarily out of the host immune surveillance arsenal. There are many cellular processes involved in disease development, and some of them are T cell signaling, differentiation, epigenetic modifications, and immune regulation. Modulation of these crucial pathways via genetic mutations and chromosomal abnormalities possessing either point or copy number mutations helps tumor cells to develop a niche favourable for their growth via metabolic alterations. Several metabolic pathways especially regulation of redox homeostasis is critical in pathogenesis of lymphoma. Disruption of redox potential and induction of oxidative stress renders malignant cells vulnerable to mitochondrial damage and triggers apoptotic pathways causing cell death. Targeting genetic abnormalities and oxidative stress along with current treatment regime have the potential for improved therapeutics and presents new combination approaches towards selective treatment of T cell lymphomas.
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Affiliation(s)
- Sushant Kumar
- Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Bhavuk Dhamija
- Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Diksha Attrish
- Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Vinanti Sawant
- Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Manju Sengar
- Medical Oncology, Tata memorial Hospital, Mumbai, Maharashtra 400012, India
| | - Jayashree Thorat
- Medical Oncology, Tata memorial Hospital, Mumbai, Maharashtra 400012, India
| | - Tanuja Shet
- Medical Oncology, Tata memorial Hospital, Mumbai, Maharashtra 400012, India
| | - Hasmukh Jain
- Medical Oncology, Tata memorial Hospital, Mumbai, Maharashtra 400012, India
| | - Rahul Purwar
- Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India.
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3
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The Role of Tumor Microenvironment in the Pathogenesis of Sézary Syndrome. Int J Mol Sci 2022; 23:ijms23020936. [PMID: 35055124 PMCID: PMC8781892 DOI: 10.3390/ijms23020936] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/11/2021] [Accepted: 12/19/2021] [Indexed: 02/05/2023] Open
Abstract
Sézary syndrome is an aggressive leukemic variant of cutaneous T-cell lymphomas, characterized by erythroderma, lymphadenopathy, and peripheral blood involvement by CD4+ malignant T-cells. The pathogenesis of Sézary syndrome is not fully understood. However, the course of the disease is strongly influenced by the tumor microenvironment, which is altered by a combination of cytokines, chemokines, and growth factors. The crosstalk between malignant and reactive cells affects the immunologic response against tumor cells causing immune dysregulation. This review focuses on the interaction of malignant Sézary cells and the tumor microenvironment.
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Khan H, Anshu A, Prasad A, Roy S, Jeffery J, Kittipongdaja W, Yang DT, Schieke SM. Metabolic Rewiring in Response to Biguanides Is Mediated by mROS/HIF-1a in Malignant Lymphocytes. Cell Rep 2020; 29:3009-3018.e4. [PMID: 31801069 DOI: 10.1016/j.celrep.2019.11.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/11/2019] [Accepted: 11/04/2019] [Indexed: 12/20/2022] Open
Abstract
Metabolic flexibility allows cells to adapt to various environments and limits the efficacy of metabolic drugs. Therapeutic targeting of cancer metabolism relies on defining limiting requirements and vulnerabilities in the highly dynamic metabolic network. Here, we characterize the metabolic reprogramming and identify cancer-specific metabolic vulnerabilities in response to the pharmacological inhibition of mitochondrial complex I. Our work reveals the adaptation mechanism in malignant lymphocytes providing resistance against the biguanides phenformin and metformin by transcriptionally reprogramming glucose metabolism. Metabolic adaptation to complex I inhibition is mediated by mitochondrial reactive oxygen species (mROS) serving as a mitochondrial stress signal activating hypoxia-inducible factor-1a (HIF-1a). Inhibition of the mROS/HIF-1a axis through antioxidants or direct suppression of HIF-1a selectively disrupts metabolic adaptation and survival during complex I dysfunction in malignant lymphocytes. Our results identify HIF-1a signaling as a critical factor in resistance against biguanide-induced mitochondrial dysfunction, allowing selective targeting of metabolic pathways in leukemia and lymphoma.
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Affiliation(s)
- Hamidullah Khan
- Department of Dermatology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Ashish Anshu
- Department of Dermatology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Aman Prasad
- Department of Dermatology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Sushmita Roy
- Department of Dermatology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Justin Jeffery
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, WI 53705, USA
| | | | - David T Yang
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Stefan M Schieke
- Department of Dermatology, University of Wisconsin-Madison, Madison, WI 53706, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI 53705, USA.
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Trager MH, Geskin LJ. Current status of histone deacetylase inhibitors in cutaneous T-cell lymphoma. GIORN ITAL DERMAT V 2020; 154:681-695. [PMID: 31859467 DOI: 10.23736/s0392-0488.19.06503-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cutaneous T cell lymphoma (CTCL) is a non-Hodgkin's lymphoma with a heterogenous presentation and highly variable disease course. The most common subtypes of CTCL are mycosis fungoides (MF) and Sézary Syndrome (SS). Treatment varies based on the stage of the disease with skin directed therapies typically utilized for early stage disease, and systemic therapies employed for more advanced disease. There are few highly effective treatments available, and systemic therapies have limited response rates. Histone deacetylase inhibitors have emerged as mainstream treatments for MF/SS over the past several years. Here, we discuss the mechanism of action of histone deacetylase inhibitors in relation to the pathogenesis of MF/SS, evaluate the clinical trials that led to Food and Drug Administration approval of two of the histone deacetylase inhibitors for MF/SS and describe the results for those still under investigation. Additionally, we discuss the potential for combination therapies in order to optimize outcomes of treatment with histone deacetylase inhibitors.
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Affiliation(s)
- Megan H Trager
- Columbia University, Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Larisa J Geskin
- Department of Dermatology, Irving Medical Center, Columbia University, New York, NY, USA -
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Zhang Z, Zheng L, Yu Y, Wu J, Yang F, Xu Y, Guo Q, Wu X, Cao S, Cao L, Song X. Involvement of SAMHD1 in dNTP homeostasis and the maintenance of genomic integrity and oncotherapy (Review). Int J Oncol 2020; 56:879-888. [PMID: 32319570 DOI: 10.3892/ijo.2020.4988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 02/07/2020] [Indexed: 11/06/2022] Open
Abstract
Sterile alpha motif and histidine/aspartic acid domain‑containing protein 1 (SAMHD1), the only deoxynucleotide triphosphate (dNTP) hydrolase in eukaryotes, plays a crucial role in regulating the dynamic balance and ratio of cellular dNTP pools. Furthermore, SAMHD1 has been reported to be involved in the pathological process of several diseases. Homozygous SAMHD1 mutations have been identified in immune system disorders, such as autoimmune disease Aicardi‑Goutières syndrome (AGS), whose primary pathogenesis is associated with the abnormal accumulation and disproportion of dNTPs. SAMHD1 is also considered to be an intrinsic virus‑restriction factor by suppressing the viral infection process, including reverse transcription, replication, packaging and transmission. In addition, SAMHD1 has been shown to promote genome integrity during homologous recombination following DNA damage, thus being considered a promising candidate for oncotherapy applications. The present review summarizes the molecular mechanisms of SAMHD1 regarding the regulation of dNTP homeostasis and DNA damage response. Additionally, its potential effects on tumorigenesis and oncotherapy are reported.
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Affiliation(s)
- Zhou Zhang
- College of Basic Medical Science, Institute of Translational Medicine, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Lixia Zheng
- College of Basic Medical Science, Institute of Translational Medicine, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Yang Yu
- College of Basic Medical Science, Institute of Translational Medicine, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Jinying Wu
- College of Basic Medical Science, Institute of Translational Medicine, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Fan Yang
- College of Basic Medical Science, Institute of Translational Medicine, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Yingxi Xu
- College of Basic Medical Science, Institute of Translational Medicine, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Qiqiang Guo
- College of Basic Medical Science, Institute of Translational Medicine, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Xuan Wu
- College of Basic Medical Science, Institute of Translational Medicine, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Sunrun Cao
- College of Basic Medical Science, Institute of Translational Medicine, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Liu Cao
- College of Basic Medical Science, Institute of Translational Medicine, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Xiaoyu Song
- College of Basic Medical Science, Institute of Translational Medicine, China Medical University, Shenyang, Liaoning 110122, P.R. China
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Muraki M. Sensitization to cell death induced by soluble Fas ligand and agonistic antibodies with exogenous agents: A review. AIMS MEDICAL SCIENCE 2020. [DOI: 10.3934/medsci.2020011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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Wu J, Wood GS. Analysis of the Effect of Gentian Violet on Apoptosis and Proliferation in Cutaneous T-Cell Lymphoma in an In Vitro Study. JAMA Dermatol 2019; 154:1191-1198. [PMID: 30167641 DOI: 10.1001/jamadermatol.2018.2756] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Importance Triggering the extrinsic apoptotic pathway is an effective way to kill cutaneous T-cell lymphoma (CTCL) cells in vitro and ex vivo. Objective To compare small molecules that induce extrinsic apoptosis in CTCL to identify and analyze compounds that induce high levels of tumor cell death and block tumor cell growth. Design, Setting, and Participants From November 5, 2014, to January 30, 2018, this study performed high-throughput small molecule screening of 1710 compounds followed by detailed analysis of the ability of gentian violet (GV) to promote apoptosis and inhibit proliferation of CTCL cells. Exposures In vitro and ex vivo analyses using enzyme-linked immunosorbent assays, flow cytometry, and immunoblotting. Main Outcomes and Measures Apoptosis, cleaved caspases, extrinsic apoptotic death receptors and ligands, cell proliferation, nuclear factor-κB expression, and other factors. Results This study used high-throughput screening to detect cleaved caspase 8 induced in CTCL cells by 1710 unique compounds. The nonprescription, topical antimicrobial remedy GV induced more total apoptosis than did nitrogen mustard (mechlorethamine). Furthermore, GV induced 4 to 6 times greater apoptosis in CTCL lines than in normal keratinocytes, suggesting a favorable topical toxicity profile. In addition to increasing caspase 8, GV also upregulated death receptors 4 and 5, tumor necrosis factor (TNF)-related apoptosis-inducing ligand, and Fas ligand but not the Fas receptor, TNF receptor, or TNF-α ligand. These results are consistent with induction of extrinsic apoptosis via the Fas and TNF-related apoptosis-inducing ligand pathways. Increased phosphorylation of phospholipase C-γ1, Ca2+ influx, and reactive oxygen species were also detected, indicating that the mechanism of Fas ligand upregulation involves key elements of the activation-induced cell death pathway. In ex vivo studies, 1-μmol/L GV induced up to 90% CTCL apoptosis in Sézary blood cells. In addition, GV reduced expression of antiapoptotic myeloid cell leukemia 1 and proproliferative nuclear factor-κB components and increased inhibitory κB levels. This finding was associated with cell cycle arrest and reduced CTCL tumor cell proliferation. Furthermore, the CTCL killing associated with GV was augmented when used in combination with methotrexate. Conclusions and Relevance This study found that GV attacked tumor viability and growth in CTCL. Although purple at neutral pH, GV can be rendered colorless by altering its pH. These preclinical findings may help to broaden knowledge of the antineoplastic features of GV and provide a rationale for clinical studies of its use as a novel, inexpensive, topical therapy for CTCL that is available worldwide.
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Affiliation(s)
- Jianqiang Wu
- Department of Dermatology, University of Wisconsin, Madison.,Veterans Affairs Medical Center, Madison, Wisconsin
| | - Gary S Wood
- Department of Dermatology, University of Wisconsin, Madison.,Veterans Affairs Medical Center, Madison, Wisconsin
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Moerman-Herzog AM, Acheampong DA, Brooks AG, Blair SM, Hsu PC, Wong HK. Transcriptome analysis of Sézary syndrome and lymphocytic-variant hypereosinophilic syndrome T cells reveals common and divergent genes. Oncotarget 2019; 10:5052-5069. [PMID: 31489115 PMCID: PMC6707948 DOI: 10.18632/oncotarget.27120] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/15/2019] [Indexed: 11/25/2022] Open
Abstract
Sézary syndrome (SS) is an aggressive cutaneous T cell lymphoma with pruritic skin inflammation and immune dysfunction, driven by neoplastic, clonal memory T cells in both peripheral blood and skin. To gain insight into abnormal gene expression promoting T cell dysfunction, lymphoproliferation and transformation in SS, we first compared functional transcriptomic profiles of both resting and activated CD4+CD45RO+ T cells from SS patients and normal donors to identified differential expressed genes. Next, a meta-analysis was performed to compare our SS data to public microarray data from a novel benign disease control, lymphocytic-variant hypereosinophilic syndrome (L-HES). L-HES is a rare, clonal lymphoproliferation of abnormal memory T cells that produces similar clinical symptoms as SS, including severe pruritus and eosinophilia. Comparison revealed gene sets specific for either SS (370 genes) or L-HES (519 genes), and a subset of 163 genes that were dysregulated in both SS and L-HES T cells compared to normal donor T cells. Genes confirmed by RT-qPCR included elevated expression of PLS3, TWIST1 and TOX only in SS, while IL17RB mRNA was increased only in L-HES. CDCA7 was increased in both diseases. In an L-HES patient who progressed to peripheral T cell lymphoma, the malignant transformation identified increases in the expression of CDCA7, TIGIT, and TOX, which are highly expressed in SS, suggesting that these genes contribute to neoplastic transformation. In summary, we have identified gene expression biomarkers that implicate a common transformative mechanism and others that are unique to differentiate SS from L-HES.
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Affiliation(s)
- Andrea M Moerman-Herzog
- Department of Dermatology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Daniel A Acheampong
- Department of Dermatology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.,Joint Graduate Program in Bioinformatics, University of Arkansas at Little Rock and University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Amanda G Brooks
- Department of Dermatology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Suzan M Blair
- Department of Dermatology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Ping-Ching Hsu
- Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Henry K Wong
- Department of Dermatology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
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Wei J, Yan Y, Chen X, Qian L, Zeng S, Li Z, Dai S, Gong Z, Xu Z. The Roles of Plant-Derived Triptolide on Non-Small Cell Lung Cancer. Oncol Res 2019; 27:849-858. [PMID: 30982492 PMCID: PMC7848329 DOI: 10.3727/096504018x15447833065047] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Over the past decade, natural compounds have been proven to be effective against many human diseases, including cancers. Triptolide (TPL), a diterpenoid triepoxide from the Chinese herb Tripterygium wilfordii Hook F, has exhibited attractive cytotoxic activity on several cancer cells. An increasing number of studies have emphasized the antitumor effects of TPL on non-small cell lung cancer (NSCLC). Here we mainly focused on the key molecular signaling pathways that lead to the inhibitory effects of TPL on human NSCLC, such as mitogen-activated protein kinases (MAPKs) modulation, inhibition of NF-κB activation, suppression of miRNA expression, etc. In addition, the effect of TIG on immune response in cancer patients is summarized for improved immune modulation utilization. However, the clinical use of TPL is often limited by its severe toxicity and water insolubility. Future clinical trials and drug delivery strategies that will evaluate the security and validate the underlying tumor-killing properties of TPL in human NSCLC are also to be discussed.
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Affiliation(s)
- Jie Wei
- *Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
- †National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Yuanliang Yan
- *Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
- †National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Xi Chen
- *Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
- †National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Long Qian
- *Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
- †National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Shuangshuang Zeng
- *Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
- †National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Zhi Li
- ‡Center for Molecular Medicine, Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Shuang Dai
- *Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
- †National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Zhicheng Gong
- *Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
- †National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Zhijie Xu
- §Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
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Gong H, Cheng W, Wang Y. Tumor necrosis factor-related apoptosis-inducing ligand inhibits the growth and aggressiveness of colon carcinoma via the exogenous apoptosis signaling pathway. Exp Ther Med 2019; 17:41-50. [PMID: 30651763 PMCID: PMC6307519 DOI: 10.3892/etm.2018.6901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 06/15/2018] [Indexed: 12/26/2022] Open
Abstract
Colon cancer is one of the most common types of gastrointestinal tumor. Previous studies have demonstrated that tumor necrosis factor-(TNF)-related apoptosis-inducing ligand (TRAIL) reduces the aggressiveness of colon cancer tumors and promotes the apoptosis of colon carcinoma cells. In the present study, the inhibitory effects of TRAIL were investigated and the potential mechanism of TRAIL-mediated apoptosis was explored in colon cancer cells. Reverse transcription-quantitative polymerase chain reaction, western blotting, immunofluorescence, immunohistochemistry, TUNEL and flow cytometry assays were used to analyze the effects of TRAIL on the growth, migration, invasion and apoptosis of colon tumor cells. In vivo experiments were performed in mice to analyze the therapeutic effects of TRAIL. The results demonstrated that TRAIL significantly suppressed the growth of colorectal tumor cells in a dose-dependent manner (0.5–2.5 mg/ml) and also promoted colon tumor cell death. The migration and invasion of colon tumor cells were inhibited by the downregulation of fibronectin, Vimentin and E-cadherin. The apoptotic rate revealed that TRAIL (2.0 mg/ml) significantly promoted the apoptosis of colon tumor cells by regulating apoptosis-related gene expression. TRAIL administration promoted the apoptosis of colon tumor cells via the exogenous apoptosis signaling pathway due to the upregulation of caspase-3, caspase-8 and nuclear factor-κB protein expression. In vivo assays revealed that TRAIL administration significantly inhibited tumor growth and promoted apoptotic body and lymphocyte infiltration, which led to increased survival in tumor-bearing mice compared with the control group. Immunohistochemistry revealed that P53 and B-cell lymphoma-2 were downregulated in TRAIL-treated tumors. In conclusion, TRAIL treatment significantly inhibited the growth and aggressiveness of colon tumors by inducing apoptosis via the exogenous apoptosis pathway, which suggests that TRAIL may be a potential anticancer agent for colon carcinoma therapy.
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Affiliation(s)
- Hongyan Gong
- Department of General Surgery, Yantaishan Hospital, Yantai, Shandong 264000, P.R. China
| | - Weicai Cheng
- Department of General Surgery, Yantaishan Hospital, Yantai, Shandong 264000, P.R. China
| | - Yong Wang
- Department of General Surgery, Yantaishan Hospital, Yantai, Shandong 264000, P.R. China
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Abstract
Cutaneous T-cell lymphomas (CTCLs) are a heterogeneous group of lymphomas that are characterized by primary skin involvement. Mycosis fungoides (MF) and Sézary syndrome (SS), the two most common subtypes of CTCL, can be difficult to manage clinically as there are few effective treatment options available. Recently, histone deacetylase inhibitors (HDACi) have emerged as promising therapies with favorable adverse effect profiles, compared with traditional chemotherapies. In this article, we review the published literature to evaluate the role of HDACi in the treatment of CTCL. Specifically, we (1) briefly discuss the molecular rationale for the use of HDACi in CTCL; (2) compare the efficacy, tolerability, and adverse effects of HDACi; (3) review the cardiac safety data; and (4) discuss optimization of therapy with HDACi in the treatment of CTCL.
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13
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Haftcheshmeh SM, Tajbakhsh A, Kazemi M, Esmaeili SA, Mardani F, Fazeli M, Sahebkar A. The clinical importance of CD4 + CD7 - in human diseases. J Cell Physiol 2018; 234:1179-1189. [PMID: 30067877 DOI: 10.1002/jcp.27099] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 06/28/2018] [Indexed: 12/22/2022]
Abstract
The CD7 antigen is a member of the immunoglobulin superfamily that expresses on the surface of all thymocytes, a majority of mature T cells, and also natural killer cells. Interestingly, under physiological and different pathological conditions, the loss of CD7 antigen occurred in the subset of CD4+ memory T cells. Various functions have been proposed for CD7, including its role in the activation and intercellular adhesiveness of T cells. Several studies indicate that the number of CD4+ CD7- T cells increases in diseases such as chronic inflammation and T-cell malignancies, these being skin inflammatory lesions. Therefore, this can be useful for the diagnosis of cancer cells, especially with reference to blood origin, treatment monitoring, and establishment of new therapies. Therefore, a comprehensive review could be useful to increase our knowledge about the clinical importance of these cells in human disease.
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Affiliation(s)
- Saeed Mohammadian Haftcheshmeh
- Department of Medical Immunology, Nanotechnology Research Center, BuAli Research Institute, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Tajbakhsh
- Department of Modern Sciences & Technologies, Faculty of Medical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohaddese Kazemi
- Inflammation and Inflammatory Disease Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed-Alireza Esmaeili
- Department of Immunology and Allergy, Immunology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Mardani
- Department of Immunology and Allergy, Immunology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mostafa Fazeli
- Department of Modern Sciences & Technologies, Faculty of Medical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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14
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Salva KA, Kim YH, Rahbar Z, Wood GS. Epigenetically Enhanced PDT Induces Significantly Higher Levels of Multiple Extrinsic Pathway Apoptotic Factors than Standard PDT, Resulting in Greater Extrinsic and Overall Apoptosis of Cutaneous T-cell Lymphoma. Photochem Photobiol 2018; 94:1058-1065. [PMID: 29675945 DOI: 10.1111/php.12925] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 03/26/2018] [Indexed: 11/27/2022]
Abstract
Aminolevulinate-based photodynamic therapy (ALA-PDT) selectively eliminates diseased tissues primarily through the induction of intrinsic apoptotic pathway. ALA-PDT is a first-line therapy for actinic keratosis, however, it is less effective for cutaneous T-cell lymphoma (CTCL). We have previously demonstrated that the resistance of CTCL to apoptosis correlates with decreased expression of death receptors such as FAS, and that methotrexate functions as an epigenetic regulator that reestablishes the susceptibility of CTCL to extrinsic pathway apoptosis. We showed previously that MTX augments the effectiveness of PDT by sensitizing cells to apoptosis by induction of apoptotic factors, a process we call "epigenetically enhanced" PDT (ePDT). Here, in CTCL cell lines, leukemic CTCL cells, and normal blood T cells, we analyzed multiple components of the FAS, TRAIL, and TNF families using multispectral imaging of immunostained cytopreparations, a quantitative technique with five-fold greater sensitivity than standard immunocytology. ePDT induced significantly greater FAS, FASL, TRAIL-R1 & -R2, and TNFα levels than standard PDT. This correlated with significantly greater induction of extrinsic pathway apoptosis and/or overall apoptosis in all CTCL samples. There was no appreciable effect on normal T cells. These data set the stage for clinical trials of ePDT as a novel localized treatment of CTCL.
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Affiliation(s)
- Katrin A Salva
- Department of Dermatology, University of Wisconsin, Madison, WI
| | - Youn H Kim
- Department of Dermatology, Stanford University, Stanford, CA
| | - Ziba Rahbar
- Department of Dermatology, Stanford University, Stanford, CA
| | - Gary S Wood
- Department of Dermatology, University of Wisconsin, Madison, WI.,VA Medical Center, Madison, WI
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15
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Rezk Hassan GF, Marey K. Immunohistopathological Study of c-FLIP Protein in Mycosis Fungoides. Asian Pac J Cancer Prev 2017; 18:2493-2499. [PMID: 28952283 PMCID: PMC5720656 DOI: 10.22034/apjcp.2017.18.9.2493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background: Mycosis fungoides (MF) is the commonest variant of primary cutaneous T cell lymphoma with several clinicopathologic variants. Defective apoptotic mechanism may be important in the pathogenesis and progression of MF. c-FLIP protein is an important anti-apoptotic marker and chemotherapeutic resistant factor. This study aimed to evaluate the c-FLIP expression in MF and its role in the pathogenesis of MF. Methods: Twenty patients of MF and ten normal persons were included in this study. Skin biopsies were obtained from both patients and controls. They were studied and examined immunohistochemically for the expression of CD4 and c-FLIP. Results: c-FLIP expression was significantly increased in patients when compared to controls in both epidermis and dermis. There were positive correlations between c-FLIP expression and CD4+ expression in both epidermal and dermal lesions of patients group. There were statistically significant positive correlations between c-FLIP expression (in both dermal and epidermal lesions) and the age of patients. c-FLIP expression increased with the tumor progression but with no statistical significance. Conclusion: Defective regulation of apoptosis has been considered as a main cause for accumulation of clonal T cells, and it was related to an increased expression of c-FLIP which may have a role in the pathogenesis of MF. Also, c-FLIP may have prognostic information in MF as its level increased with both age of the patients and tumor progression.
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Affiliation(s)
- Ghada Fawzy Rezk Hassan
- Lecturer of Dermatology and Venereology, Faculty of medicine, Tanta University, 31111, Tanta, Egypt.
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16
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Abstract
OPINION STATEMENT Cutaneous T cell lymphomas (CTCLs) are non-Hodgkin lymphomas of skin homing T cells. Although early-stage disease may be limited to the skin, tumor cells in later stage disease can populate the blood, the lymph nodes, and the visceral organs. Unfortunately, there are few molecular biomarkers to guide diagnosis, staging, or treatment of CTCL. Diagnosis of CTCL can be challenging and requires the synthesis of clinical findings, histopathology, and T cell clonality studies; however, none of these tests are entirely sensitive or specific for CTCL. Treatment of CTCL is often empiric and is not typically based on specific molecular alterations, as is common in other cancers. In part, limitations in diagnosis and treatment selection reflect the limited insight into the genetic basis of CTCL. Recent next-generation sequencing has revolutionized our understanding of the mutational landscape in this disease. These analyses have uncovered ultraviolet radiation and recombination activating gene (RAG) endonucleases as important mutagens. Furthermore, these studies have revealed potentially targetable oncogenic mutations in the T cell receptor complex, NF-κB, and JAK-STAT signaling pathways. Collectively, these somatic mutations drive lymphomagenesis via cancer-promoting changes in proliferation, apoptosis, and T cell effector function. We expect that these genetic findings will launch a new era of precision medicine in CTCL.
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17
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Ragheb R, Venton G, Chelbi R, Bonnet N, Le Treut T, Ivanov V, Mercier C, Poulin P, Beaufils N, Gabert J, Suchon P, Rihet P, Loriod B, Kahn-Perlès B, Costello RT. Vorinostat and Mithramycin A in combination therapy as an interesting strategy for the treatment of Sézary T lymphoma: a transcriptomic approach. Arch Dermatol Res 2017; 309:611-623. [PMID: 28695331 DOI: 10.1007/s00403-017-1761-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 06/07/2017] [Accepted: 07/03/2017] [Indexed: 12/22/2022]
Abstract
SAHA (vorinostat) is a histone deacetylase inhibitor approved by the USA Food and Drug Administration (FDA) for treating advanced refractory cutaneous T cell lymphomas. As SAHA alters the expression of many genes under control of the Sp1 transcription factor, we examined the effect of its association with the FDA-approved anticancer antibiotic Mithramycin A (MTR, plicamycin), a competitive inhibitor of Sp1 binding to DNA. Sézary syndrome (SS) cells, expanded ex vivo from peripheral blood mononuclear cells of 4 patients, were tested for their sensitivity to the drugs regarding cytotoxicity and differential responsive gene expression. Multivariate statistical methods were used to identify genes whose expression is altered by SAHA, MTR, and the synergist effect of the two drugs. MTR, like SAHA, induced the apoptosis of SS cells, while the two drugs in combination showed clear synergy or potentiation. Expression data stressed a likely important role of additive or synergistic epigenetic modifications in the combined effect of the two drugs, while direct inhibition of Sp1-dependent transcription seemed to have only limited impact. Ontological analysis of modified gene expression suggested that the two drugs, either independently or synergistically, counteracted many intertwined pro-survival pathways deregulated in SS cells, resistance of these tumors to intrinsic and extrinsic apoptosis, abnormal adhesion migration, and invasive properties, as well as immunosuppressive behavior. Our findings provide preliminary clues on the individual and combined effects of SAHA and MTR in SS cells and highlight a potential therapeutic interest of this novel pair of drugs for treatment of SS patients.
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Affiliation(s)
- R Ragheb
- Aix Marseille Université, INSERM UMR_S 1090, Technological Advances for Genomics and Clinics, 13288, Marseille-Luminy, France
| | - G Venton
- Aix Marseille Université, INSERM UMR_S 1090, Technological Advances for Genomics and Clinics, 13288, Marseille-Luminy, France.,Assistance Publique des Hôpitaux de Marseille, Hôpital de la Conception, Service d'Hématologie et de Thérapie Cellulaire, 13005, Marseille, France
| | - R Chelbi
- Aix Marseille Université, INSERM UMR_S 1090, Technological Advances for Genomics and Clinics, 13288, Marseille-Luminy, France
| | - N Bonnet
- Assistance Publique Hôpitaux de Marseille, Hôpital Nord, Service de Dermatologie, 13915, Marseille, France
| | - T Le Treut
- Assistance Publique Hôpitaux de Marseille, Hôpital Nord, Laboratoire d'Hématologie, 13915, Marseille, France
| | - V Ivanov
- Assistance Publique des Hôpitaux de Marseille, Hôpital de la Conception, Service d'Hématologie et de Thérapie Cellulaire, 13005, Marseille, France
| | - C Mercier
- Assistance Publique des Hôpitaux de Marseille, Hôpital de la Conception, Service d'Hématologie et de Thérapie Cellulaire, 13005, Marseille, France
| | - P Poulin
- Assistance Publique Hôpitaux de Marseille, Hôpital La Conception, Service d'Hémaphérèse, 13005, Marseille, France
| | - N Beaufils
- Assistance Publique des Hôpitaux de Marseille, Hôpital Nord, Laboratoire de Biochimie Biologie Moléculaire, 13288, Marseille, France
| | - J Gabert
- Assistance Publique des Hôpitaux de Marseille, Hôpital Nord, Laboratoire de Biochimie Biologie Moléculaire, 13288, Marseille, France
| | - P Suchon
- Assistance Publique des Hôpitaux de Marseille, Hôpital de la Timone, Service d'Hématologie, 13005, Marseille, France
| | - P Rihet
- Aix Marseille Université, INSERM UMR_S 1090, Technological Advances for Genomics and Clinics, 13288, Marseille-Luminy, France
| | - B Loriod
- Aix Marseille Université, INSERM UMR_S 1090, Technological Advances for Genomics and Clinics, 13288, Marseille-Luminy, France
| | - B Kahn-Perlès
- Aix Marseille Université, INSERM UMR_S 1090, Technological Advances for Genomics and Clinics, 13288, Marseille-Luminy, France
| | - Régis T Costello
- Aix Marseille Université, INSERM UMR_S 1090, Technological Advances for Genomics and Clinics, 13288, Marseille-Luminy, France. .,Assistance Publique des Hôpitaux de Marseille, Hôpital de la Conception, Service d'Hématologie et de Thérapie Cellulaire, 13005, Marseille, France.
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18
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Moyal L, Yehezkel S, Gorovitz B, Keren A, Gilhar A, Lubin I, Sherman S, Hodak E. Oncogenic role of microRNA-155 in mycosis fungoides: an in vitro and xenograft mouse model study. Br J Dermatol 2017; 177:791-800. [PMID: 28256712 DOI: 10.1111/bjd.15422] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND MicroRNA (miR)-155 contributes to the proliferation of mycosis fungoides (MF) in vitro and is upregulated in tumours of MF compared with early MF lesions. OBJECTIVES To investigate the contribution of miR-155 to the cancerous phenotype and drug resistance of MF/Sézary cell lines. METHODS miR-155 was inhibited in MF cell lines (MyLa and MJ) by transduction of miRZip anti-miR-155, and overexpressed in Hut78 cells by transduction of miRVec-miR-155; empty plasmids served as controls. Cells were analysed for response to inducers of apoptosis and cell-cycle arrest, using fluorescence-activated cell sorting. Transduced MyLa cells were subcutaneously injected into severe combined immunodeficient mice, and tumours were analysed immunohistochemically and for final size. RESULT MyLa and MJ cells expressed a high level of miR-155; Hut78 cells expressed a low level. MF cell lines stably expressing miR-155 inhibitor showed increased G2/M arrest in response to N-p-tolyl-2-(3,4,5-trimethoxyphenyl quinazolin-4-amine) (SL111), an inducer of cell-cycle arrest, followed by increased apoptosis. Additionally, they showed increased apoptosis in response to suberoylanilide hydroxamic acid (SAHA). Tumours formed in mice from injected anti-miR-155-expressing MyLa cells had a significantly lower volume and higher occurrence of apoptosis than controls. Stable overexpression of miR-155 in Hut78 cells had no effect. CONCLUSIONS Oncogenic miR-155 appears to contribute to the cancerous phenotype of MyLa and MJ cells, but not of Hut78 cells, by interrupting activation of the G2/M checkpoint in response to SL111, and decreasing apoptosis in response to SL111 and SAHA, thereby facilitating tumour growth. These findings have implications for the potential development of novel therapeutic modalities for MF incorporating miR-155 inhibitors.
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Affiliation(s)
- L Moyal
- Department of Dermatology, Tel Aviv University, Tel Aviv, Israel.,Laboratory for Molecular Dermatology, Felsenstein Medical Research Center, Tel Aviv University, Tel Aviv, Israel
| | - S Yehezkel
- Department of Dermatology, Tel Aviv University, Tel Aviv, Israel.,Laboratory for Molecular Dermatology, Felsenstein Medical Research Center, Tel Aviv University, Tel Aviv, Israel
| | - B Gorovitz
- Department of Dermatology, Tel Aviv University, Tel Aviv, Israel.,Laboratory for Molecular Dermatology, Felsenstein Medical Research Center, Tel Aviv University, Tel Aviv, Israel
| | - A Keren
- Laboratory for Skin Research, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - A Gilhar
- Laboratory for Skin Research, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.,Flieman Medical Center, Haifa, Israel
| | - I Lubin
- Core Facility, Felsenstein Medical Research Center, Rabin Medical Center, Petach Tikva, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - S Sherman
- Department of Dermatology, Tel Aviv University, Tel Aviv, Israel.,Laboratory for Molecular Dermatology, Felsenstein Medical Research Center, Tel Aviv University, Tel Aviv, Israel
| | - E Hodak
- Department of Dermatology, Tel Aviv University, Tel Aviv, Israel.,Laboratory for Molecular Dermatology, Felsenstein Medical Research Center, Tel Aviv University, Tel Aviv, Israel
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19
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Kodigepalli KM, Li M, Liu SL, Wu L. Exogenous expression of SAMHD1 inhibits proliferation and induces apoptosis in cutaneous T-cell lymphoma-derived HuT78 cells. Cell Cycle 2016; 16:179-188. [PMID: 27929746 DOI: 10.1080/15384101.2016.1261226] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Sterile α motif and HD domain-containing protein 1 (SAMHD1) is a mammalian dNTP hydrolase (dNTPase) that regulates intracellular dNTP balance. We have previously reported that SAMHD1 mRNA and protein levels are significantly downregulated in CD4+ T-cells of patients with cutaneous T-cell lymphoma (CTCL), a disease characterized by infiltration of neoplastic CD4+ T-lymphocytes into the skin. However, functional significance of SAMHD1 in CTCL development and progression remains unknown. Here we investigate the mechanism by which SAMHD1 induces apoptosis in CTCL-derived CD4+ T-cells. We stably expressed exogenous SAMHD1 in the CTCL-derived HuT78 T-cell line containing a very low level of endogenous SAMHD1 protein. We found that low-level exogenous expression of SAMHD1 led to a significant reduction in HuT78 cell growth, proliferation, and colony formation. Exogenous SAMHD1 expression in HuT78 cells also resulted in increased spontaneous and Fas ligand (Fas-L)-induced apoptosis levels via activation of the extrinsic pathway, including caspase-8, -3 and -7. Additionally, increased SAMHD1 significantly reduced the protein and mRNA expression of the short isoform of cFLIP (cFLIPS), an important negative regulator of Fas-L-mediated apoptotic signaling. Our results indicate that exogenous SAMHD1 expression inhibits HuT78 cell growth and proliferation in part by increasing apoptosis. These findings implicate that SAMHD1 acts as an inhibitor in CTCL cell growth, suggesting that downregulation of SAMHD1 expression in neoplastic T-cells can facilitate uncontrolled cell proliferation.
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Affiliation(s)
- Karthik M Kodigepalli
- a Center of Retrovirus Research, Department of Veterinary Biosciences ; The Ohio State University , Columbus , OH , USA
| | - Minghua Li
- a Center of Retrovirus Research, Department of Veterinary Biosciences ; The Ohio State University , Columbus , OH , USA
| | - Shan-Lu Liu
- a Center of Retrovirus Research, Department of Veterinary Biosciences ; The Ohio State University , Columbus , OH , USA
| | - Li Wu
- a Center of Retrovirus Research, Department of Veterinary Biosciences ; The Ohio State University , Columbus , OH , USA.,b Comprehensive Cancer Center, The Ohio State University , Columbus , OH , USA.,c Department of Microbial Infection and Immunity , The Ohio State University , Columbus , OH , USA
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20
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Malignant inflammation in cutaneous T-cell lymphoma-a hostile takeover. Semin Immunopathol 2016; 39:269-282. [PMID: 27717961 PMCID: PMC5368200 DOI: 10.1007/s00281-016-0594-9] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 09/14/2016] [Indexed: 01/05/2023]
Abstract
Cutaneous T-cell lymphomas (CTCL) are characterized by the presence of chronically inflamed skin lesions containing malignant T cells. Early disease presents as limited skin patches or plaques and exhibits an indolent behavior. For many patients, the disease never progresses beyond this stage, but in approximately one third of patients, the disease becomes progressive, and the skin lesions start to expand and evolve. Eventually, overt tumors develop and the malignant T cells may disseminate to the blood, lymph nodes, bone marrow, and visceral organs, often with a fatal outcome. The transition from early indolent to progressive and advanced disease is accompanied by a significant shift in the nature of the tumor-associated inflammation. This shift does not appear to be an epiphenomenon but rather a critical step in disease progression. Emerging evidence supports that the malignant T cells take control of the inflammatory environment, suppressing cellular immunity and anti-tumor responses while promoting a chronic inflammatory milieu that fuels their own expansion. Here, we review the inflammatory changes associated with disease progression in CTCL and point to their wider relevance in other cancer contexts. We further define the term "malignant inflammation" as a pro-tumorigenic inflammatory environment orchestrated by the tumor cells and discuss some of the mechanisms driving the development of malignant inflammation in CTCL.
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21
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Sézary Syndrome and Atopic Dermatitis: Comparison of Immunological Aspects and Targets. BIOMED RESEARCH INTERNATIONAL 2016; 2016:9717530. [PMID: 27294147 PMCID: PMC4886049 DOI: 10.1155/2016/9717530] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 03/30/2016] [Indexed: 12/27/2022]
Abstract
Sézary syndrome (SS), an aggressive form of erythrodermic pruritic cutaneous T cell lymphoma (CTCL), from an immunological perspective characterized by increased Th2 cytokine levels, elevated serum IgE and impaired cellular immunity. Not only the clinical appearance but also the hallmark immunological characteristics of SS often share striking similarities with acute flares of atopic dermatitis (AD), a common benign chronic inflammatory skin disease. Given the overlap of several immunological features, the application of similar or even identical therapeutic approaches in certain stages of both diseases may come into consideration. The aim of this review is to compare currently accepted immunological aspects and possible therapeutic targets in AD and SS.
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22
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The Therapeutic Potential of AN-7, a Novel Histone Deacetylase Inhibitor, for Treatment of Mycosis Fungoides/Sezary Syndrome Alone or with Doxorubicin. PLoS One 2016; 11:e0146115. [PMID: 26752418 PMCID: PMC4709199 DOI: 10.1371/journal.pone.0146115] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 12/13/2015] [Indexed: 12/12/2022] Open
Abstract
The 2 histone deacetylase inhibitors (HDACIs) approved for the treatment of cutaneous T-cell lymphoma (CTCL) including mycosis fungoides/sezary syndrome (MF/SS), suberoylanilide hydroxamic acid (SAHA) and romidepsin, are associated with low rates of overall response and high rates of adverse effects. Data regarding combination treatments with HDACIs is sparse. Butyroyloxymethyl diethylphosphate (AN-7) is a novel HDACI, which was found to have selective anticancer activity in several cell lines and animal models. The aim of this study was to compare the anticancer effects of AN-7 and SAHA, either alone or combined with doxorubicin, on MF/SS cell lines and peripheral blood lymphocytes (PBL) from patients with Sezary syndrome (SPBL). MyLa cells, Hut78 cells, SPBL, and PBL from healthy normal individuals (NPBL) were exposed to the test drugs, and the findings were analyzed by a viability assay, an apoptosis assay, and Western blot. AN-7 was more selectively toxic to MyLa cells, Hut78 cells, and SPBL (relative to NPBL) than SAHA and also acted more rapidly. Both drugs induced apoptosis in MF/SS cell lines, SAHA had a greater effect on MyLa cell line, while AN-7 induced greater apoptosis in SPBL; both caused an accumulation of acetylated histone H3, but AN-7 was associated with earlier kinetics; and both caused a downregulation of the HDAC1 protein in MF/SS cell lines. AN-7 acted synergistically with doxorubicin in both MF/SS cell lines and SPBL, and antagonistically with doxorubicin in NPBL. By contrast, SAHA acted antagonistically with doxorubicin on MF/SS cell lines, SPBL, and NPBL, leaving <50% viable cells. In conclusion, AN-7 holds promise as a therapeutic agent in MF/SS and has several advantages over SAHA. Our data provide a rationale for combining AN-7, but not SAHA, with doxorubicin to induce the cell death in MF/SS.
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23
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Salva KA, Wood GS. Epigenetically Enhanced Photodynamic Therapy (ePDT) is Superior to Conventional Photodynamic Therapy for Inducing Apoptosis in Cutaneous T-Cell Lymphoma. Photochem Photobiol 2015; 91:1444-51. [PMID: 26302991 DOI: 10.1111/php.12521] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 08/01/2015] [Indexed: 11/26/2022]
Abstract
Conventional photodynamic therapy with aminolevulinate (ALA-PDT) selectively induces apoptosis in diseased cells and is highly effective for treating actinic keratoses. However, similar results are achieved only in a subset of patients with cutaneous T-cell lymphoma (CTCL). Our previous work shows that the apoptotic resistance of CTCL correlates with low expression of death receptors like Fas cell surface death receptor (FAS), and that methotrexate upregulates FAS by inhibiting the methylation of its promoter, acting as an epigenetic derepressor that restores the susceptibility of FAS-low CTCL to caspase-8-mediated apoptosis. Here, we demonstrate that methotrexate increases the response of CTCL to ALA-PDT, a concept we refer to as epigenetically enhanced PDT (ePDT). Multiple CTCL cell lines were subjected to conventional PDT versus ePDT. Apoptotic biomarkers were analyzed in situ with multispectral imaging analysis of immunostained cells, a method that is quantitative and 5× more sensitive than standard immunohistology for antigen detection. Compared to conventional PDT or methotrexate alone, ePDT led to significantly greater cell death in all CTCL cell lines tested by inducing greater activation of caspase-8-mediated extrinsic apoptosis. Upregulation of FAS and/or tumor necrosis factor-related apoptosis-inducing ligand pathway components was observed in different CTCL cell lines. These findings provide a rationale for clinical trials of ePDT for CTCL.
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Affiliation(s)
- Katrin Agnes Salva
- Department of Dermatology, Wisconsin Institutes for Medical Research, University of Wisconsin, Madison, WI
| | - Gary S Wood
- Department of Dermatology, Wisconsin Institutes for Medical Research, University of Wisconsin, Madison, WI.,VA Medical Center, Madison, WI
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24
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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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25
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Klemke CD, Feoktistova M, Leverkus M. Silencing autocrine death: a ubiquitin ligase that blocks activation-induced cell death in cutaneous T-cell lymphoma. J Invest Dermatol 2015; 135:662-665. [PMID: 25666675 DOI: 10.1038/jid.2014.468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Cutaneous T-cell lymphoma (CTCL) tumor cells lack the ability of activated T cells to undergo TCR/CD3-mediated activation-induced cell death (AICD). In this issue, the study reported by Wu et al. demonstrates that c-CBL (Casitas B-lineage Lymphoma proto-oncogene) is overexpressed in CTCL. When CTCL cells lose c-CBL, AICD is enhanced. Furthermore, combination therapy with methotrexate (a known demethylating agent for the CD95 gene) in combination with the loss of c-CBL increases CTCL cell death. Therefore, inhibition of c-CBL could represent a method of sensitizing lymphoma cells to enhance AICD. Armed with their novel data, the investigators envision combination therapies that target c-CBL to reactivate AICD in the malignant T cells whenever responsiveness to TCR/CD3 signaling is retained.
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Affiliation(s)
- Claus-Detlev Klemke
- Departments of Dermatology, Venereology, and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany
| | - Maria Feoktistova
- Section of Molecular Dermatology, Departments of Dermatology, Venereology, and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany
| | - Martin Leverkus
- Departments of Dermatology, Venereology, and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany; Section of Molecular Dermatology, Departments of Dermatology, Venereology, and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany.
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26
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Altered MicroRNA Expression in Folliculotropic and Transformed Mycosis Fungoides. Pathol Oncol Res 2015; 21:821-5. [DOI: 10.1007/s12253-015-9897-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 01/06/2015] [Indexed: 10/24/2022]
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27
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BIN1 tumor suppressor regulates Fas/Fas ligand–mediated apoptosis through c-FLIP in cutaneous T-cell lymphoma. Leukemia 2015; 29:1402-13. [DOI: 10.1038/leu.2015.9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 12/02/2014] [Accepted: 12/18/2014] [Indexed: 01/09/2023]
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28
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Patel S, Murphy D, Haralambieva E, Abdulla ZA, Wong KK, Chen H, Gould E, Roncador G, Hatton C, Anderson AP, Banham AH, Pulford K. Increased Expression of Phosphorylated FADD in Anaplastic Large Cell and Other T-Cell Lymphomas. Biomark Insights 2014; 9:77-84. [PMID: 25232277 PMCID: PMC4159367 DOI: 10.4137/bmi.s16553] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 06/03/2014] [Indexed: 01/02/2023] Open
Abstract
FAS-associated protein with death domain (FADD) is a major adaptor protein involved in extrinsic apoptosis, embryogenesis, and lymphocyte homeostasis. Although abnormalities of the FADD/death receptor apoptotic pathways have been established in tumorigenesis, fewer studies have analyzed the expression and role of phosphorylated FADD (pFADD). Our identification of FADD as a lymphoma-associated autoantigen in T-cell lymphoma patients raises the possibility that pFADD, with its correlation with cell cycle, may possess role(s) in human T-cell lymphoma development. This immunohistochemical study investigated pFADD protein expression in a range of normal tissues and lymphomas, particularly T-cell lymphomas that require improved therapies. Whereas pFADD was expressed only in scattered normal T cells, it was detected at high levels in T-cell lymphomas (eg, 84% anaplastic large cell lymphoma and 65% peripheral T cell lymphomas, not otherwise specified). The increased expression of pFADD supports further study of its clinical relevance and role in lymphomagenesis, highlighting phosphorylation of FADD as a potential therapeutic target.
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Affiliation(s)
- Suketu Patel
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, UK
| | - Derek Murphy
- Center for Human Proteomics, Royal College of Surgeons in Ireland, Dublin, Ireland. ; School of Biological Sciences, Dublin Institute of Technology, Dublin, Ireland. ; Royal College of Surgeons in Ireland, Dublin, Ireland
| | | | | | - Kah Keng Wong
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Hong Chen
- Center for Human Proteomics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Edith Gould
- Center for Human Proteomics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Giovanna Roncador
- Monoclonal Antibodies Unit, Biotechnology Programme, Spanish National Cancer Research Center, Madrid, Spain
| | - Chris Hatton
- Department of Hematology, John Radcliffe Hospital, Oxford, UK
| | - Amanda P Anderson
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, UK
| | - Alison H Banham
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, UK
| | - Karen Pulford
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, UK
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Wu J, Salva KA, Wood GS. c-CBL E3 ubiquitin ligase is overexpressed in cutaneous T-cell lymphoma: its inhibition promotes activation-induced cell death. J Invest Dermatol 2014; 135:861-868. [PMID: 25140833 PMCID: PMC4324119 DOI: 10.1038/jid.2014.364] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 07/14/2014] [Accepted: 07/28/2014] [Indexed: 11/17/2022]
Abstract
Mycosis fungoides (MF) and Sezary syndrome (SS) are two major forms of cutaneous T-cell lymphoma (CTCL) characterized by resistance to apoptosis. A central pathway for T-cell apoptosis is activation-induced cell death (AICD) which is triggered through the T-cell receptor (TCR). This results in upregulation of FAS-ligand (FASL) and subsequent apoptosis through the FAS death receptor pathway. It has been known for more than a decade that TCR signaling is defective in CTCL; however, the underlying mechanism has not been apparent. In this report, we show that the E3 ubiquitin ligase, c-CBL, is over-expressed in CTCL and that its knockdown overcomes defective TCR signaling resulting in phosphorylation of PLCg1, calcium influx, ROS generation, up-regulation of FASL and extrinsic pathway apoptosis in CTCL cells expressing adequate FAS. In CTCL cells with suboptimal FAS expression, FAS can be upregulated epigenetically by derepression of the FAS promoter using methotrexate (MTX) which we showed previously has activity as a DNA methylation inhibitor. Using these combined strategies, FAS-low as well as FAS-high CTCL cells can be killed effectively.
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Affiliation(s)
- Jianqiang Wu
- Department of Dermatology, University of Wisconsin and the Middleton VA Medical Center, Madison, Wisconsin, USA
| | - Katrin A Salva
- Department of Dermatology, University of Wisconsin and the Middleton VA Medical Center, Madison, Wisconsin, USA
| | - Gary S Wood
- Department of Dermatology, University of Wisconsin and the Middleton VA Medical Center, Madison, Wisconsin, USA.
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Jawed SI, Myskowski PL, Horwitz S, Moskowitz A, Querfeld C. Primary cutaneous T-cell lymphoma (mycosis fungoides and Sézary syndrome). J Am Acad Dermatol 2014; 70:205.e1-16; quiz 221-2. [DOI: 10.1016/j.jaad.2013.07.049] [Citation(s) in RCA: 171] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 06/25/2013] [Accepted: 07/01/2013] [Indexed: 02/08/2023]
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Abstract
Sézary syndrome (SS) is an incurable leukemic variant of cutaneous T-cell lymphoma characterized by recurrent chromosomal alterations, among which, chromosome 10q deletion is very frequent. In this study, we investigated the PTEN status, on locus 10q23, in 44 SS patients; our findings show that PTEN is deleted in 36% of SS cases, whereas PTEN downregulation is observed in almost all of the samples evaluated by quantitative reverse-transcriptase polymerase chain reaction and Western blotting analysis. Neither DNA sequence mutation nor promoter hypermethylation were found at the PTEN locus, but we demonstrate that PTEN level can be also reduced by a group of miRs previously found upregulated and of prognostic relevance in SS; particularly, miR-21, miR-106b, and miR-486 were able to control PTEN abundance either in vitro or in vivo. Finally, because reduced PTEN activates the PI3/AKT-mediated pathway of cell growth and survival, we demonstrate that PTEN deficiency is associated with activated AKT in skin resident but not circulating SS cells, suggesting that the cutaneous milieu may strongly contribute to the SS cell growth. To our knowledge, this is the first study fully exploring the PTEN status in a large cohort of SS patients, unveiling potential elements of clinical utility in this malignancy.
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Stutz N, Johnson RD, Wood GS. The Fas apoptotic pathway in cutaneous T-cell lymphomas: frequent expression of phenotypes associated with resistance to apoptosis. J Am Acad Dermatol 2012; 67:1327.e1-10. [PMID: 22884443 DOI: 10.1016/j.jaad.2012.05.035] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Revised: 05/07/2012] [Accepted: 05/15/2012] [Indexed: 11/17/2022]
Abstract
BACKGROUND Low proliferation rates, sparse apoptotic cells, and resistance to chemotherapeutic agents suggest that defective apoptotic mechanisms may be important in the pathogenesis and progression of cutaneous T-cell lymphomas (CTCLs). Functional studies of CTCL cell lines and leukemic cells further support abnormal expression of Fas apoptotic pathway proteins as a mechanism for resistance to apoptosis. OBJECTIVE We sought to compare the Fas apoptotic pathway protein expression of mycosis fungoides (MF) with CD30(+) lymphoproliferative disorders (CD30(+)d) in the context of insights gained from functional studies of CTCL cells. METHODS We conducted immunohistochemical analysis of 36 MF and 36 CD30(+)d skin biopsy specimens with antibodies against Fas, Fas ligand, FLICE-like inhibitory protein, Fas-associated death domain, and total and cleaved caspases 8 and 3. RESULTS Almost all MF lesions (94%) were Fas ligand-negative. In all, 64% of MF lesions were Fas low. An additional 25% of MF lesions were both Fas high and FLICE-like inhibitory protein high (Fas pathway inhibitor). Altogether, this equated to a phenotype predictive of apoptotic resistance in 89% of MF samples. In 9 of 10 cases of CD30(+)d, the apoptotic phenotype predictive of sensitivity/resistance correlated with signs of regression/progression, respectively. LIMITATIONS The study is limited by its retrospective design. DISCUSSION Our in situ analysis of MF and CD30(+)d tissue samples correlates well with previous functional studies of CTCL cell lines and leukemic blood. Our data strengthen the hypothesis that abnormal expression of upstream Fas pathway factors (Fas, Fas ligand) and the inhibitor FLICE-like inhibitory protein contributes to defective apoptosis in CTCLs.
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Affiliation(s)
- Nathalie Stutz
- Department of Dermatology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53706, USA
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Khan MA, Gahlot S, Majumdar S. Oxidative stress induced by curcumin promotes the death of cutaneous T-cell lymphoma (HuT-78) by disrupting the function of several molecular targets. Mol Cancer Ther 2012; 11:1873-83. [PMID: 22653966 DOI: 10.1158/1535-7163.mct-12-0141] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Curcumin is known to exert its anticancer effect either by scavenging or by generating reactive oxygen species (ROS). In this study, we report that curcumin-mediated rapid generation of ROS induces apoptosis by modulating different cell survival and cell death pathways in HuT-78 cells. Curcumin induces the activation of caspase-8, -2, and -9, alteration of mitochondrial membrane potential, release of cytochrome c, and activation of caspase-3 and concomitant PARP cleavage, but the addition of caspase inhibitors only partially blocked the curcumin-mediated apoptosis. Curcumin also downregulates the expression of antiapoptotic proteins c-FLIP, Bcl-xL, cellular inhibitor of apoptosis protein, and X-linked IAP in a ROS-dependent manner. Curcumin disrupts the integrity of IKK and beclin-1 by degrading Hsp90. Degradation of IKK leads to the inhibition of constitutive NF-κB. Degradation of beclin-1 by curcumin leads to the accumulation of autophagy-specific marker, microtubule-associated protein-I light chain 3 (LC3), LC3-I. Our findings indicate that HuT-78 cells are vulnerable to oxidative stress induced by curcumin and as a result eventually undergo cell death.
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Affiliation(s)
- Mohammad Aslam Khan
- Division of Cell Biology and Immunology, Institute of Microbial Technology, CSIR, Chandigarh, India
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35
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Al-Yacoub N, Fecker LF, Möbs M, Plötz M, Braun FK, Sterry W, Eberle J. Apoptosis induction by SAHA in cutaneous T-cell lymphoma cells is related to downregulation of c-FLIP and enhanced TRAIL signaling. J Invest Dermatol 2012; 132:2263-74. [PMID: 22551975 DOI: 10.1038/jid.2012.125] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Suberoylanilide hydroxamic acid (SAHA) has been approved for the treatment of cutaneous T-cell lymphoma (CTCL), but its mode of action remained largely elusive. As shown here in four CTCL cell lines, loss of cell viability correlated with significant time- and dose-dependent induction of apoptosis, whereas cytotoxicity was less pronounced. Both extrinsic and intrinsic apoptosis pathways were activated, as seen by processing of initiator caspases 8 and 9, loss of mitochondrial membrane potential, and cytochrome c release. Characteristically, antiapoptotic mediators such as Mcl-1, XIAP, survivin, and c-FLIP were downregulated. Consistent with its critical function, c-FLIP overexpression resulted in a significant decrease of SAHA-mediated apoptosis. Enhanced sensitivity to TRAIL (TNF-related apoptosis-inducing ligand) and enhanced TRAIL signaling was seen in CTCL cell lines with high sensitivity, whereas cell lines with moderate response were characterized by downregulation of TRAIL-R2 and weaker TRAIL expression. Comparable proapoptotic responses to SAHA and to the combination with TRAIL were seen in ex vivo tumor T cells of CTCL patients. Thus, activation of extrinsic apoptosis pathways, related to c-FLIP downregulation and enhanced TRAIL signaling, appeared as characteristic for CTCL cell responsiveness to SAHA. An improved understanding of the pathways may facilitate its targeted use and the selection of suitable combinations.
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Affiliation(s)
- Nadya Al-Yacoub
- Department of Dermatology and Allergy, Skin Cancer Center Charité (HTCC), Charité-University Medical Center Berlin, Berlin, Germany
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Regulation of T-plastin expression by promoter hypomethylation in primary cutaneous T-cell lymphoma. J Invest Dermatol 2012; 132:2042-9. [PMID: 22495182 DOI: 10.1038/jid.2012.106] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
T-plastin (PLS3) is an actin-bundling protein normally expressed in epithelial cells but absent in cells of hematopoietic origin. Aberrant PLS3 expression has been demonstrated in lymphocytes from Sézary syndrome (SS) patients and has been proposed as a biomarker for SS; however, the mechanism underlying dysregulation of PLS3 has not been determined. In this study, PLS3 mRNA expression was demonstrated in 21/35 (60%) SS patients and in 3/8 (38%) mycosis fungoides patients, all of whom had clonal blood involvement. No evidence for PLS3 mutations within coding or promoter regions was found, but significant hypomethylation of CpG dinucleotides 95-99 within the PLS3 CpG island was observed and this was restricted to the PLS3+ population. A polyclonal antibody specific to PLS3 was raised to examine coexpression of PLS3 with a panel of T-cell differentiation markers. All PLS3+ cells were CD3+CD4+ and CD26-, suggesting that loss of CD26 is consistently associated with gain of PLS3, whereas all other markers were distributed heterogeneously. However, a patient-specific TCR copy number assay also demonstrated heterogeneity in PLS3 expression in tumor cell populations. Importantly, our findings demonstrate PLS3 expression in the majority of SS patients and provide insight into the molecular regulation of PLS3 expression in CTCL.
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37
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Li JY, Horwitz S, Moskowitz A, Myskowski PL, Pulitzer M, Querfeld C. Management of cutaneous T cell lymphoma: new and emerging targets and treatment options. Cancer Manag Res 2012; 4:75-89. [PMID: 22457602 PMCID: PMC3308634 DOI: 10.2147/cmar.s9660] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cutaneous T cell lymphomas (CTCL) clinically and biologically represent a heterogeneous group of non-Hodgkin lymphomas, with mycosis fungoides and Sézary syndrome being the most common subtypes. Over the last decade, new immunological and molecular pathways have been identified that not only influence CTCL phenotype and growth, but also provide targets for therapies and prognostication. This review will focus on recent advances in the development of therapeutic agents, including bortezomib, the histone deacetylase inhibitors (vorinostat and romidepsin), and pralatrexate in CTCL.
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Affiliation(s)
- Janet Y Li
- College of Physicians and Surgeons, Columbia University, New York, NY, USA
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38
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Caudron A, Marie-Cardine A, Bensussan A, Bagot M. Actualités sur le syndrome de Sézary. Ann Dermatol Venereol 2012; 139:31-40. [DOI: 10.1016/j.annder.2011.09.188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2011] [Revised: 06/27/2011] [Accepted: 09/22/2011] [Indexed: 01/23/2023]
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Curiel-Lewandrowski C, Yamasaki H, Si CP, Jin X, Zhang Y, Richmond J, Tuzova M, Wilson K, Sullivan B, Jones D, Ryzhenko N, Little F, Kupper TS, Center DM, Cruikshank WW. Loss of nuclear pro-IL-16 facilitates cell cycle progression in human cutaneous T cell lymphoma. J Clin Invest 2011; 121:4838-49. [PMID: 22080865 DOI: 10.1172/jci41769] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2009] [Accepted: 09/21/2011] [Indexed: 02/03/2023] Open
Abstract
Cutaneous T cell lymphomas (CTCLs) represent a heterogeneous group of non-Hodgkin lymphomas that affect the skin. The pathogenesis of these conditions is poorly understood. For example, the signaling mechanisms contributing to the dysregulated growth of the neoplastic T cells are not well defined. Here, we demonstrate that loss of nuclear localization of pro-IL-16 facilitates CTCL cell proliferation by causing a decrease in expression of the cyclin dependent-kinase inhibitor p27Kip1. The decrease in p27Kip1 expression was directly attributable to an increase in expression of S-phase kinase-associated protein 2 (Skp2). Regulation of Skp2 is in part attributed to the nuclear presence of the scaffold protein pro-IL-16. T cells isolated from 11 patients with advanced CTCL, but not those from healthy controls or patients with T cell acute lymphocytic leukemia (T-ALL), demonstrated reduction in nuclear pro-IL-16 levels. Sequence analysis identified the presence of mutations in the 5' end of the PDZ1 region of pro-IL-16, a domain required for association of pro-IL-16 with the nuclear chaperone HSC70 (also known as HSPA8). HSC70 knockdown led to loss of nuclear translocation by pro-IL-16 and subsequent increases in Skp2 levels and decreases in p27Kip1 levels, which ultimately enhanced T cell proliferation. Thus, our data indicate that advanced CTCL cell growth is facilitated, at least in part, by mutations in the scaffold protein pro-IL-16, which directly regulates Skp2 synthesis.
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Affiliation(s)
- Clara Curiel-Lewandrowski
- Department of Dermatology, Cutaneous Oncology Program, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
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Braun FK, Al-Yacoub N, Plötz M, Möbs M, Sterry W, Eberle J. Nonsteroidal anti-inflammatory drugs induce apoptosis in cutaneous T-cell lymphoma cells and enhance their sensitivity for TNF-related apoptosis-inducing ligand. J Invest Dermatol 2011; 132:429-39. [PMID: 22011910 DOI: 10.1038/jid.2011.316] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Cutaneous T-cell lymphomas (CTCL) form a heterogeneous group of non-Hodgkin's lymphomas of the skin. In previous studies, we had characterized CTCL cells as resistant to the death ligand tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), which correlated to pronounced expression of the caspase-8/-10 inhibitor c-FLIP. For identification of proapoptotic strategies in CTCL cells and for overcoming their death ligand resistance, we investigated the effects of nonsteroidal anti-inflammatory drugs (NSAIDs) such as acetylsalicylic acid, sodium salicylate, and diclofenac (DF). These drugs strongly enhanced apoptosis, as well as decreased CTCL cell proliferation and vitality, and DF furthermore sensitized for TRAIL-induced apoptosis. Full activation of the caspase cascade (caspase-3, -8, -9) and decreased mitochondrial membrane potential were characteristic for NSAID treatment, whereas cytochrome c release was seen only for DF. Downregulation of Mcl-1 and enhanced surface expression of TRAIL were seen in response to NSAIDs. Most characteristic for apoptosis induction was the downregulation of c-FLIP. In agreement with the critical role of c-FLIP for apoptosis deficiency of CTCL cells, its overexpression decreased NSAID-mediated apoptosis and its downregulation by small hairpin RNA-enhanced apoptosis. The study provides a rationale for the use of NSAIDs as a new therapeutic option for CTCL patients. Supporting this concept, ex vivo lymphoma cells of CTCL patients also revealed significant sensitivity for NSAID treatment.
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Affiliation(s)
- Frank K Braun
- Department of Dermatology and Allergy, Skin Cancer Center Charité (HTCC), Charité-University Medical Center Berlin, Berlin, Germany
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McKenzie RCT, Jones CL, Tosi I, Caesar JA, Whittaker SJ, Mitchell TJ. Constitutive activation of STAT3 in Sézary syndrome is independent of SHP-1. Leukemia 2011; 26:323-31. [PMID: 21818116 DOI: 10.1038/leu.2011.198] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Constitutive and persistent activation of STAT3 has been implicated in the pathogenesis of many malignancies. Studies of CTCL cell lines have previously suggested that aberrant activation of STAT3 is mediated via silencing of the negative regulator SHP-1 by promoter methylation. In this study of ex vivo tumour cell populations from 18 Sézary syndrome (SS) patients, constitutive phosphorylation of STAT3, JAK1 and JAK2 was present in all patients, but was absent in comparative CD4+ T-cells from healthy controls. Furthermore, no loss or significant difference in SHP-1 expression was observed between patients and healthy control samples. Methylation-specific PCR analysis of the SHP-1 CpG island in 47 SS patients and 11 healthy controls did not detect any evidence of methylation. Moreover, small interfering RNA knockdown of SHP-1 had no effect on phosphorylation of STAT3. In contrast, treatment of SS tumour cells with the pan-JAK inhibitor pyridone 6 led to downregulation of phosphorylated STAT3 (pSTAT3), its target genes and induction of apoptosis. No evidence for common JAK1/JAK2-activating mutations was found. These data demonstrate that constitutive activation of STAT3 in SS is not due to the loss of SHP-1, but is mediated by constitutive aberrant activation of JAK family members.
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Affiliation(s)
- R C T McKenzie
- Skin Tumour Unit, St John's Institute of Dermatology, Division of Genetics and Molecular Medicine, King's College London, London, UK
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Wu J, Siddiqui J, Nihal M, Vonderheid EC, Wood GS. Structural alterations of the FAS gene in cutaneous T-cell lymphoma (CTCL). Arch Biochem Biophys 2011; 508:185-91. [PMID: 21036138 PMCID: PMC3060968 DOI: 10.1016/j.abb.2010.10.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Accepted: 10/25/2010] [Indexed: 11/17/2022]
Abstract
FAS (TNF receptor superfamily member 6, also known as CD95) plays a major role in T-cell apoptosis and is often dysregulated in CTCL. We searched for structural alterations of the FAS gene with the potential to affect its function. Although several heterozygous FAS promoter single nucleotide polymorphisms (SNPs) were detected, the only homozygous one was the -671 GG SNP present in 24/80 CTCL cases (30%). This SNP maps to an interferon response element activated by STAT-1. EMSA and supershift EMSA showed decreased CTCL nuclear protein/STAT-1 binding to oligonucleotides bearing this SNP. Luciferase reporters showed significantly less interferon-alfa responsive expression by FAS promoter constructs containing this SNP in multiple CTCL lines. Finally, FAS was upregulated by interferon-alfa in wildtype CTCL cells but not those bearing the -671 GG SNP. These findings indicate that many CTCL patients harbor the homozygous FAS promoter -671 GG SNP capable of blunting its response to interferon. This may have implications for CTCL pathogenesis, racial incidence and the response of patients to interferon-alfa therapy. In contrast, functionally significant mutations in FAS coding sequences were detected uncommonly. Among CTCL lines with the potential to serve as models of FAS regulation, FAS-high MyLa had both FAS alleles, FAS-low HH was FAS-hemizygous and FAS-negative SeAx was FAS-null.
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Affiliation(s)
- Jianqiang Wu
- Department of Dermatology, University of Wisconsin and VAMC, Madison, WI
| | - Jawed Siddiqui
- Department of Dermatology, University of Wisconsin and VAMC, Madison, WI
| | - Minakshi Nihal
- Department of Dermatology, University of Wisconsin and VAMC, Madison, WI
| | - Eric C. Vonderheid
- Departments of Dermatology and Oncology, Johns Hopkins Medical Institutes, Baltimore, MD
| | - Gary S. Wood
- Department of Dermatology, University of Wisconsin and VAMC, Madison, WI
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Li L, Zhang R, Chen Z, Xue S, Wang X, Ruan C. Over-expressed Fas improves the apoptosis of malignant T-cells in vitro and vivo. Mol Biol Rep 2011; 38:5371-7. [PMID: 21390503 DOI: 10.1007/s11033-011-0689-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Accepted: 02/26/2011] [Indexed: 11/26/2022]
Abstract
Fas play a critical role in T-cell apoptosis by functioning as a major cell-surface death receptor. To explore a potential method that can improve the sensitivity to Fas-mediated apoptosis in malignant precursor T-cells. Fas gene was stable transfected into Jurkat cells to establish a new cell line named Jurkat-Fas with over-expressed Fas. RT-PCR, real-time RT-PCR, flow cytometry, and confocal microscopy assay were performed to detect the Fas level of mRNA and protein in the two cell lines. The sensitivities to Fas-mediated apoptosis of the two cell lines were evaluated by flow cytometry with Alexa Fluor 488 annexin V/PI staining in vitro. Tumor xenograft models were prepared with Jurkat and Jurkat-Fas cells for in vivo study. Fas mRNA and protein levels in Jurkat-Fas cell line were higher than that in Jurkat cell line. Compared to Jurkat cells, apoptosis rates of Jurkat-Fas cells were remarkably higher in vitro, and the tumor growth of Jurkat-Fas cells in nude mice was significantly inhibited in vivo. Stable over-expression of extrinsic Fas gene can significantly ameliorate the sensitivity to Fas-mediated apoptosis in human malignant T-cell, which indicates a novel strategy to improve therapeutic effects on precursor T-cell malignancy.
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Affiliation(s)
- Linghao Li
- Department of Hematology, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, No 188 Shizi Street, Suzhou 215006, China
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Deficiency of SATB1 expression in Sezary cells causes apoptosis resistance by regulating FasL/CD95L transcription. Blood 2011; 117:3826-35. [PMID: 21270445 DOI: 10.1182/blood-2010-07-294819] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Sézary syndrome (SS) is an aggressive subtype of cutaneous T-cell lymphoma that is characterized by circulating leukemic Sézary cells. The accumulation of these malignant cells has been shown to be the result of the resistance to apoptosis, in particular, activation-induced cell death. However, the mechanism of apoptosis resistance remains unknown. By characterizing the gene transcription profiles of purified CD4(+)CD7(-) Sézary cells from patients with SS and cultured Sézary cells, it was found that Sézary cells are deficient in the expression of special AT-rich region binding protein 1 (SATB1), a key regulator of T-cell development and maturation. Retrovirus-mediated gene transduction revealed that SATB1 restoration in cultured Sézary cells (Hut78) triggered spontaneous cell death and sensitized Hut78 cells to activation-induced cell death, with associated activation of caspase 8 and caspase 3. Furthermore, endogenous expression of FasL in Sézary cells was increased in transcriptional and translational levels on restoration of SATB1 expression in cultured Sézary cells. These results suggest that deficiency in SATB1 expression in Sézary cells plays an important role in SS pathogenesis by causing apoptosis resistance. Thus, restoration of SATB1 expression may represent a potential molecular targeted therapy for SS, which does not have a cure at present.
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Rook AH, Wood GS, Duvic M, Vonderheid EC, Tobia A, Cabana B. A phase II placebo-controlled study of photodynamic therapy with topical hypericin and visible light irradiation in the treatment of cutaneous T-cell lymphoma and psoriasis. J Am Acad Dermatol 2010; 63:984-90. [DOI: 10.1016/j.jaad.2010.02.039] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Revised: 02/08/2010] [Accepted: 02/16/2010] [Indexed: 11/16/2022]
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Pentoxifylline augments TRAIL/Apo2L mediated apoptosis in cutaneous T cell lymphoma (HuT-78 and MyLa) by modulating the expression of antiapoptotic proteins and death receptors. Biochem Pharmacol 2010; 80:1650-61. [PMID: 20804743 DOI: 10.1016/j.bcp.2010.08.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 08/17/2010] [Accepted: 08/18/2010] [Indexed: 11/24/2022]
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL/Apo2L) is a promising anticancer agent but cutaneous T lymphoma cells (CTCL) are less sensitive to TRAIL-induced apoptosis. Here, we report that pentoxifylline (PTX), a phosphodiesterase inhibitor, augments TRAIL-mediated apoptosis in HuT-78 and MyLa cells through modulating extrinsic death receptors and intrinsic mitochondria dependent pathways. Our results clearly show that PTX augments TRAIL-mediated activation of caspase-8 and induces cleavage of Bid, although PTX alone cannot activate caspase-8. This is followed by cytochrome c release and subsequent, activation of caspase-9 and caspase-3 and cleavage of poly (ADP ribose) polymerase (PARP). Combined treatment downregulates the expression of various antiapoptotic proteins including c-FLIP, Bcl-xl, cIAP-1, cIAP-2 and XIAP. PTX induces the expression of death receptors DR4 and DR5 on cell surface of both the cell types where c-Jun NH2-terminal kinase (JNK) pathway plays an important role. Moreover, combined silencing of DR4 and DR5 by small interfering RNA abrogates the ability of PTX to induce TRAIL-mediated apoptosis. Thus, this is the first demonstration that PTX can potentiate TRAIL-mediated apoptosis through downregulation of cell survival gene products and upregulation of death receptors.
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Abstract
In cutaneous T-cell lymphomas (CTCLs) defects in Fas-mediated apoptosis have been suggested to be involved in disease pathogenesis. Decreased or absent Fas expression has been reported in a significant proportion of CTCL patients, but the molecular mechanisms of such impaired Fas expression have hardly been investigated to date. In this issue, Jones et al. show that defective Fas expression is attributable to positional methylation of the Fas gene.
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Braun FK, Hirsch B, Al-Yacoub N, Dürkop H, Assaf C, Kadin ME, Sterry W, Eberle J. Resistance of cutaneous anaplastic large-cell lymphoma cells to apoptosis by death ligands is enhanced by CD30-mediated overexpression of c-FLIP. J Invest Dermatol 2009; 130:826-40. [PMID: 19890350 DOI: 10.1038/jid.2009.299] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Death ligands, including TNF-alpha, CD95L/FasL, and TRAIL, mediate safeguard mechanisms against tumor growth and critically contribute to lymphocyte homeostasis. We investigated death receptor-mediated apoptosis and CD30/CD95 crosstalk in four CD30-positive cell lines of cutaneous anaplastic large-cell lymphoma (cALCL). Whereas CD95 stimulation strongly induced apoptosis in cALCL cells, the pro-apoptotic pathways of TNF-alpha and TRAIL were completely blocked at an early step. Expression of TNF receptor 1 was lost in three of four cell lines, providing an explanation for TNF-alpha unresponsiveness. TRAIL resistance may be explained by the consistent overexpression of cellular flice inhibitory protein (c-FLIP) (four of four cell lines) and frequent loss of the pro-apoptotic Bcl-2 protein Bid (three of four cell lines). Changes at the receptor-expression level were largely ruled out. CD30/CD95 crosstalk experiments showed that CD30 ligation leads to NF-kappaB-mediated c-FLIP upregulation in cALCL cells, which in turn conferred enhanced resistance to CD95-mediated apoptosis. Knockdown of c-FLIP by a lentiviral approach enhanced basic apoptosis rates in cALCL cells and diminished the CD30-mediated suppression of apoptosis, thus proving the significance of c-FLIP in this context. These in vitro findings may be indicative of the clinical situation of cALCL. Further clarifying the defects in apoptosis pathways in cutaneous lymphomas may lead to improved therapies for these disorders.
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Affiliation(s)
- Frank K Braun
- Department of Dermatology and Allergy, Charité-University Medical Center Berlin, HTCC-Skin Cancer Center, Berlin, Germany
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Downregulation of Fas gene expression in Sézary syndrome is associated with promoter hypermethylation. J Invest Dermatol 2009; 130:1116-25. [PMID: 19759548 DOI: 10.1038/jid.2009.301] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Sézary Syndrome (SS) is an aggressive leukemic variant of primary cutaneous T-cell lymphoma characterized by the presence of tumor or Sézary cells that generally display a mature memory T-cell immunophenotype. Sézary cells proliferate poorly and therefore their accumulation may be due to defective T-cell homeostasis involving resistance to apoptosis. In this study, we analyzed Fas expression in CD4+ lymphocytes at the mRNA and protein levels in a large cohort of SS patients as compared with healthy controls. Fas mRNA expression was dysregulated in 34/47 patients, with significant under- and overexpression of Fas mRNA detected in 21 and 13 patients respectively (P<0.01). Examination of cell-surface Fas expression showed correlation with the observed downregulation of mRNA in CD4+ T cells. Mutational analysis demonstrated that functional FAS gene mutations are rare. Moreover, 16 SS patients who showed significant under-expression of Fas mRNA also showed significant positional hypermethylation within the FAS CpG island, which was not present in healthy controls or SS patients determined to have normal or overexpression of Fas mRNA. These data demonstrate that dysregulation of Fas expression is a common feature of SS, and provide a rationale for targeted therapies to restore the extrinsic Fas-dependent apoptotic pathway in this malignancy.
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