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https://www.readbyqxmd.com/read/28133821/total-skin-electron-therapy-as-treatment-for-epitheliotropic-lymphoma-in-a-dog
#1
Domenico Santoro, Lyndsay Kubicek, Bo Lu, William Craft, Julia Conway
BACKGROUND: Mycosis fungoides (MF) is an uncommon cutaneous neoplasm in dogs. Treatment options are limited. Total skin electron therapy (TSET) has been suggested as a possible therapy for canine MF. OBJECTIVE: To describe the use of TSET as palliative treatment for MF in a dog. RESULTS: An adult dog, previously diagnosed with nonepidermolytic ichthyosis, was presented with generalized erythroderma, alopecia and erosions. Histopathology revealed a densely cellular, well-demarcated, unencapsulated infiltrate extending from the epidermis to the mid-dermis compatible with MF...
January 29, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28119365/usefulness-of-kir3dl2-to-diagnose-follow-up-and-manage-the-treatment-of-s%C3%A3-zary-syndrome-patients
#2
Charlotte Hurabielle, Nicolas Thonnart, Caroline Ram-Wolff, Helene Sicard, Armand Bensussan, Martine Bagot, Anne Marie-Cardine
PURPOSE: KIR3DL2 is a recently discovered marker of the malignant clonal cell population in Sézary Syndrome (SS). We intended to evaluate the expression of KIR3DL2 on blood T-cells as a diagnostic, prognostic and follow-up marker of SS. EXPERIMENTAL DESIGN: 64 patients diagnosed with SS were included in this monocentric study. We collected the percentage of KIR3DL2+ cells among CD3+ T-cells, obtained by flow cytometry, and other classical diagnostic criteria for SS at diagnosis and during the follow-up...
January 24, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28107479/apoptosis-induction-and-gene-expression-profile-alterations-of-cutaneous-t-cell-lymphoma-cells-following-their-exposure-to-bortezomib-and-methotrexate
#3
Vassiliki Mpakou, Evangelia Papadavid, Frieda Kontsioti, Eugene Konsta, Miriam Vikentiou, Aris Spathis, Sotiris Papageorgiou, Diamantina Vasilatou, Konstantinos Gkontopoulos, Efthimia Mpazani, Petros Karakitsos, Dimitrios Rigopoulos, George Dimitriadis, Vasiliki Pappa
Mycosis fungoides (MF) and its leukemic variant Sézary syndrome (SS) comprise the majority of CTCL, a heterogenous group of non-Hodgkins lymphomas involving the skin. The CTCL's resistance to chemotherapy and the lack of full understanding of their pathogenesis request further investigation. With the view of a more targeted therapy, we evaluated in vitro the effectiveness of bortezomib and methotrexate, as well as their combination in CTCL cell lines, regarding apoptosis induction. Our data are of clinical value and indicate that the bortezomib/methotrexate combinational therapy has an inferior impact on the apoptosis of CTCL compared to monotherapy, with bortezomib presenting as the most efficient treatment option for SS and methotrexate for MF...
2017: PloS One
https://www.readbyqxmd.com/read/28034470/-cutaneous-granular-bacteriosis-occurring-in-staphylococcus-aureus-septicaemia
#4
D Mermin, A-L Védie, M-L Jullie, A Fauconneau, M Beylot-Barry, A Pham-Ledard
BACKGROUND: Herein we report a case of cutaneous granular bacteriosis, with discussion of the nosological setting of this entity based upon the clinical and histological findings. PATIENTS AND METHODS: A 62-year-old woman receiving methotrexate for Sezary syndrome was admitted for fever of 38.5̊C and overall impairment of her health. She presented a fistulous nodule on her right knee, and skin biopsy revealed a focus of ulcerated suppuration with quantities of Gram+ and Grocott+ granules containing no filament, enclosed by eosinophilic matter (Splendore-Hoeppli phenomenon)...
December 26, 2016: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28024703/a-new-molecular-paradigm-in-mycosis-fungoides-and-s%C3%A3-zary-syndrome
#5
Kojo S J Elenitoba-Johnson, Ryan Wilcox
Mycosis Fungoides (MF) and Sézary Syndrome (SS) are clonal proliferations of mature T-cells manifesting as lymphoproliferative disorders in which the neoplastic cells show a strong propensity for skin-homing. While the predominant site of presentation in MF is the skin, the peripheral blood carries a significant tumor burden in Sézary Syndrome such that it resembles a "leukemic" disease. While the genetic basis of these diseases has been studied using different approaches in the previous years, recent genome-wide studies employing massively parallel sequencing techniques now offer new insights into the molecular pathogenesis of these diseases...
December 7, 2016: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28012574/s%C3%A3-zary-syndrome-without-erythroderma-a-review-of-16-cases-at-mayo-clinic
#6
Agnieszka K Thompson, Jill M Killian, Amy L Weaver, Mark R Pittelkow, Mark D P Davis
BACKGROUND: Sézary syndrome (SS) is characterized by erythroderma with leukemic involvement. In atypical SS, leukemic involvement is present without erythroderma. Little is known about the presentation, prognosis, and outcome in these patients. OBJECTIVE: We sought to describe our experience with patients with SS without erythroderma. METHODS: We retrospectively identified patients with SS, but without erythroderma, at Mayo Clinic from 1976 to 2010...
December 21, 2016: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28010897/brentuximab-vedotin-for-treatment-of-non-hodgkin-lymphomas-a-systematic-review
#7
REVIEW
Garrett K Berger, Ali McBride, Stephanie Lawson, Kelsey Royball, Seongseok Yun, Kevin Gee, Irbaz Bin Riaz, Ahlam A Saleh, Soham Puvvada, Faiz Anwer
BACKGROUND: Brentuximab vedotin (BV) is an antibody-drug conjucate (ADC) comprising a CD30-directed antibody, conjugated to the microtubule-disrupting agent MMAE via a protease cleavable linker. BV is FDA approved for use in relapsed classical Hodgkin lymphoma (HL) and relapsed systemic anaplastic large cell lymphoma (sALCL). There are multiple publications for its utility in other malignancies such as diffuse large B-cell lymphoma (DLBCL), mycosis fungoides (MF), Sézary syndrome (SS), T-cell lymphomas (TCL), primary mediastinal lymphoma (PMBL), and post-transplant lymphoproliferative disorders (PTLD)...
January 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27984038/increased-expression-of-pls3-correlates-with-better-outcome-in-s%C3%A3-zary-syndrome
#8
S E Boonk, W H Zoutman, H Putter, C Ram-Wolff, M Felcht, C D Klemke, A Ranki, P Quaglino, S Whittaker, M Bagot, R Willemze, M H Vermeer
No abstract text is available yet for this article.
October 28, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27981789/comparison-of-abnormal-cell-flagging-of-the-hematology-analyzers-sysmex-xn-and-sysmex-xe-5000-in-oncohematologic-patients
#9
J R Furundarena, M Sainz, A Uranga, L Cuevas, I Lopez, J Zubicaray, A Bizjak, N Robado, M Araiz
INTRODUCTION: Hematology analyzers should optimize flagging while minimizing false-negative results and unnecessary microscopic reviews. METHODS: We compared flagging performance of Sysmex XE-5000 and XN analyzers in oncohematologic patients. Differential counts were performed by Cellavision digital system (100 cells) and a hematologist (another 100 cells). RESULTS: First, we included 292 samples (86 with blasts): 28 acute lymphoblastic leukemia, 88 acute myeloid leukemia, 91 myelodysplastic syndromes, 45 chronic myeloproliferative neoplasms, and 40 chronic myelomonocytic leukemia...
February 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/27968935/cutaneous-lymphoma-kids-are-not-just-little-people
#10
Katalin Ferenczi, Hanspaul S Makkar
Cutaneous T-cell lymphomas (CTCLs) are non-Hodgkin lymphomas that predominantly affect older patients. Onset of cutaneous lymphoma in childhood is rare, but it can present as early as the first decade of life. In both adults and children, the diagnosis of cutaneous lymphoma can be challenging because inflammatory dermatoses can mimic CTCL both clinically and histologically. The clinicopathologic manifestations can be similar in adults and younger individuals; however, differences in the prevalence of certain CTCL variants among age groups exist...
November 2016: Clinics in Dermatology
https://www.readbyqxmd.com/read/27897325/the-biomarker-landscape-in-mycosis-fungoides-and-s%C3%A3-zary-syndrome
#11
REVIEW
Brittany Dulmage, Larisa Geskin, Joan Guitart, Oleg E Akilov
The practice of preemptive individualized medicine is predicated on the discovery, development, and application of biomarkers in specific clinical settings. Mycosis fungoides and Sézary syndrome are the two most common type of cutaneous T-cell lymphoma, yet diagnosis, prognosis, and disease monitoring remain a challenge. In this review, we discuss the current state of biomarker discovery in mycosis fungoides and Sézary syndrome, highlighting the most promising molecules in different compartments. Further, we emphasize the need for continued multicenter efforts to validate available and new biomarkers and to develop prospective combinatorial panels of already discovered molecules...
November 28, 2016: Experimental Dermatology
https://www.readbyqxmd.com/read/27889686/microrna-181-contributes-to-downregulation-of-samhd1-expression-in-cd4-t-cells-derived-from-s%C3%A3-zary-syndrome-patients
#12
Rebecca Kohnken, Karthik M Kodigepalli, Anjali Mishra, Pierluigi Porcu, Li Wu
Sézary syndrome (SS) is a rare subtype of cutaneous T-cell lymphoma (CTCL) that is characterized by aggressive spread of neoplastic CD4+ T-cells from the skin into the bloodstream with metastasis to visceral organs. The deoxynucleoside triphosphohydrolase SAMHD1 is highly expressed in normal CD4+ T-cells, while its expression is down-regulated in CD4+ T-cells from SS patients. MicroRNA (miR) dysregulation is an important epigenetic mechanism in the pathogenesis and progression of SS. MiR-181 has been shown to inhibit SAMHD1 expression in cell lines and was identified as an important prognostic biomarker in CTCL...
January 2017: Leukemia Research
https://www.readbyqxmd.com/read/27873737/erythroderma-and-non-hodgkin-t-cell-lymphoma-what-else-apart-from-mycosis-fungoides-and-s%C3%A3-zary-syndrome
#13
Alessandro Pileri, Cinzia Pellegrini, Claudio Agostinelli, Vieri Grandi, Annalisa Patrizi, Pier Luigi Zinzani, Nicola Pimpinelli
BACKGROUND: Peripheral T-cell lymphomas, not otherwise specified (PTCL-NOS), are a rare condition characterised by specific histology, nodal presentation, and a poor prognosis. In total, 10-18% of patients present with cutaneous involvement which is regarded as a poor prognostic marker. However, cutaneous PTCL-NOS lesions have been rarely reported in the literature. OBJECTIVES: We sought to describe PTCL-NOS cases characterised by erythrodermic dissemination to the skin...
February 1, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/27828640/alemtuzumab-in-refractory-s%C3%A3-zary-syndrome
#14
Carmen María Alcántara Reifs, Rafael Salido-Vallejo, Gloria María Garnacho-Saucedo, Sofía De la Corte-Sánchez, Alberto González-Menchen, Antonio Vélez García-Nieto
Sézary syndrome is a primary cutaneous T-cell lymphoma characterized by the triad of erythroderma, lymphadenopathy and circulating atypical cells. The emergence of new molecular targets has enabled the development of drugs such as alemtuzumab, an anti-CD52 monoclonal antibody, which has shown promising results in the treatment of this entity. We report the case of a 70-year-old male with refractory Sézary syndrome in whom treatment with alemtuzumab achieved an 80% skin lesion clearance with complete haematologic and radiologic response...
September 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/27821903/proteomic-approaches-to-biomarker-discovery-in-cutaneous-t-cell-lymphoma
#15
REVIEW
Alexandra Ion, Iris Maria Popa, Laura Maria Lucia Papagheorghe, Cristina Lisievici, Mihai Lupu, Vlad Voiculescu, Constantin Caruntu, Daniel Boda
Cutaneous T-cell lymphoma (CTCL) is the most frequently encountered type of skin lymphoma in humans. CTCL encompasses multiple variants, but the most common types are mycosis fungoides (MF) and Sezary syndrome (SS). While most cases of MF run a mild course over a period of many years, other subtypes of CTCL are very aggressive. The rapidly expanding fields of proteomics and genomics have not only helped increase knowledge concerning the carcinogenesis and tumor biology of CTCL but also led to the discovery of novel markers for targeted therapy...
2016: Disease Markers
https://www.readbyqxmd.com/read/27805921/c-cbl-e3-ubiquitin-ligase-expression-increases-across-the-spectrum-of-benign-and-malignant-t-cell-skin-diseases
#16
Katrin A Salva, Margo J Reeder, Rita Lloyd, Gary S Wood
Prolonged survival of lesional T cells plays a central role in the pathogenesis of T-cell-mediated dermatoses. We have recently shown that the ubiquitin ligase c-CBL is highly expressed in cutaneous T-cell lymphoma (CTCL) and that its knockdown increases activation-induced cell death, a key pathway for T-cell apoptosis. Here, we extend our work on c-CBL expression in malignant T cells to their nonneoplastic counterparts in benign inflammatory dermatoses. Immunohistochemical staining with anti-c-CBL antibody was performed on lesional biopsies from a total of 65 patients with atopic dermatitis, allergic contact dermatitis, pityriasis rosea, psoriasis vulgaris, lichen planus, mycosis fungoides (MF)/Sézary syndrome (SS) as well as on tonsil tissue from 5 individuals and on 5 human CTCL cell lines...
October 31, 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27780938/toll-like-receptor-agonists-partially-restore-the-production-of-pro-inflammatory-cytokines-and-type-i-interferon-in-s%C3%A3-zary-syndrome
#17
Kelly C G Manfrere, Marina P Torrealba, Denis R Miyashiro, Luanda M S Oliveira, Gabriel C de Carvalho, Josenilson F Lima, Anna Claudia C C Branco, Nátalli Z Pereira, Juliana Pereira, José A Sanches, Maria N Sato
Sézary syndrome (SS) carries a poor prognosis, and infections represent the most frequent cause of death in SS patients. Toll-like receptors (TLRs) are a family of innate immune receptors that induce protective immune responses against infections. We sought to evaluate the ability of TLR agonists to induce inflammatory cytokine, Th2 cytokine, and type I interferon (IFN-I) production by peripheral blood mononuclear cells (PBMC) of untreated SS patients. We detected impaired IL-6, IL-10 and IL-13 secretion by PBMC induced by the agonists for TLR5, TLR3, TLR7 and TLR9 in SS patients, while it was partially recovered by TLR2/TLR4 and TLR7/8 agonists TNF secretion was restored following stimulation with TLR2/TLR4 agonists...
15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27766406/cd164-identifies-cd4-t-cells-highly-expressing-genes-associated-with-malignancy-in-s%C3%A3-zary-syndrome-the-s%C3%A3-zary-signature-genes-fcrl3-tox-and-mir-214
#18
Bernice M Benoit, Neha Jariwala, Geraldine O'Connor, Landon K Oetjen, Timothy M Whelan, Adrienne Werth, Andrea B Troxel, Hélène Sicard, Lisa Zhu, Christopher Miller, Junko Takeshita, Daniel W McVicar, Brian S Kim, Alain H Rook, Maria Wysocka
Sézary syndrome (SS), a leukemic variant of cutaneous T-cell lymphoma (CTCL), is associated with a significantly shorter life expectancy compared to skin-restricted mycosis fungoides. Early diagnosis of SS is, therefore, key to achieving enhanced therapeutic responses. However, the lack of a biomarker(s) highly specific for malignant CD4(+) T cells in SS patients has been a serious obstacle in making an early diagnosis. We recently demonstrated the high expression of CD164 on CD4(+) T cells from Sézary syndrome patients with a wide range of circulating tumor burdens...
January 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/27732942/doxycycline-is-an-nf-%C3%AE%C2%BAb-inhibitor-that-induces-apoptotic-cell-death-in-malignant-t-cells
#19
Carolina V Alexander-Savino, Matthew S Hayden, Christopher Richardson, Jiyong Zhao, Brian Poligone
Cutaneous T-cell Lymphoma (CTCL) is a rare non-Hodgkin's lymphoma that can affect the skin, blood, and lymph nodes, and can metastasize at late stages. Novel therapies that target all affected disease compartments and provide longer lasting responses while being safe are needed. One potential therapeutic target is NF-κB, a regulator of immune responses and an important participant in carcinogenesis and cancer progression. As a transcription factor, NF-κB targets genes that promote cell proliferation and survival...
November 15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27704468/s%C3%A3-zary-syndrome-clinical-and-biological-aspects
#20
REVIEW
Rebecca Kohnken, Stephanie Fabbro, Justin Hastings, Pierluigi Porcu, Anjali Mishra
Sézary syndrome (SS) is a rare and aggressive type of cutaneous T cell lymphoma (CTCL) characterized by an intensely pruritic, exfoliative rash, known as erythroderma, with cutaneous and systemic dissemination of clonal CD4+ T cells into the blood and lymph nodes. This review aims to present recent advancements in the biological and clinical aspects of SS. We begin by providing an overview of the diagnostic criteria for SS and reviewing some of its epidemiological and clinical aspects. We then discuss updates in the etiology of this elusive disease and the genetic and molecular landscapes that define it...
December 2016: Current Hematologic Malignancy Reports
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