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Cutaneous lymphomas

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https://www.readbyqxmd.com/read/28537899/nras-mutations-in-cutaneous-t-cell-lymphoma-ctcl-sensitize-tumors-towards-treatment-with-the-multikinase-inhibitor-sorafenib
#1
Michael K Kießling, Jan P Nicolay, Tabea Schlör, Claus-Detlev Klemke, Dorothee Süss, Peter H Krammer, Karsten Gülow
Therapy of cutaneous T cell lymphoma (CTCL) is complicated by a distinct resistance of the malignant T cells towards apoptosis that can be caused by NRAS mutations in late-stage patients. These mutations correlate with decreased overall survival, but sensitize the respective CTCL cells towards MEK-inhibition-induced apoptosis which represents a promising novel therapeutic target in CTCL. Here, we show that the multi-kinase inhibitor Sorafenib induces apoptosis in NRAS-mutated CTCL cells. CTCL cell lines and to a minor extent primary T cells from Sézary patients without NRAS mutations are also affected by Sorafenib-induced apoptosis suggesting a sensitizing role of NRAS mutations for Sorafenib-induced apoptosis...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28535466/do-polychlorinated-biphenyls-cause-cancer-a-systematic-review-and-meta-analysis-of-epidemiological-studies-on-risk-of-cutaneous-melanoma-and-non-hodgkin-lymphoma
#2
REVIEW
Claudia Zani, Elisabetta Ceretti, Loredana Covolo, Francesco Donato
In 2015 a IARC Working Group upgraded the classification of PCBs to Group 1 "Carcinogenic to humans", also on the basis of evidence from epidemiological studies showing an excess risk for melanoma. Increased risks for non-Hodgkin lymphoma (NHL) and breast cancer were also reported though the evidence was limited. However, some recent reviews of studies on PCB exposure and risk of cancer provided discrepant findings. Therefore, we re-evaluated the association between exposure to PCBs and risk of melanoma and NHL by a systematic review and meta-analysis...
May 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28535360/posttransplant-lymphoproliferative-disorder-otolaryngological-manifestations-and-management
#3
Richard Heyes, Donald W Northfelt, David G Lott
Objective Posttransplant lymphoproliferative disorder (PTLD) is a unifying term for a spectrum of lymphoid expansion entities brought about by immunosuppression and is strongly associated with Epstein-Barr virus (EBV). Otolaryngological findings tend to present early in the clinical course; therefore, disease awareness among otolaryngologists is of utmost importance. This review synthesizes the body of literature pertaining to PTLD involving the head and neck, summarizes contemporary management, and highlights areas for future research...
May 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28532760/research-techniques-made-simple-high-throughput-sequencing-of-the-t-cell-receptor
#4
Tiago R Matos, Menno A de Rie, Marcel B M Teunissen
High-throughput sequencing (HTS) of the T-cell receptor (TCR) is a rapidly advancing technique that allows sensitive and accurate identification and quantification of every distinct T-cell clone present within any biological sample. The relative frequency of each individual clone within the full T-cell repertoire can also be studied. HTS is essential to expand our knowledge on the diversity of the TCR repertoire in homeostasis or under pathologic conditions, as well as to understand the kinetics of antigen-specific T-cell responses that lead to protective immunity (i...
June 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28530062/-cutaneous-t-cell-lymphoma-unilesional-mycosis-fungoides
#5
Esther Gavish, Michael Ziv, Yehudit Kraus, Dganit Rozenman
Unilesional mycosis fungoides is a rare cutaneous T cell lymphoma that warrants either radiation therapy or surgical excision. Benign characteristics result in misdiagnosis, delayed tissue biopsy and subsequently delayed provision of adequate treatment. A young patient presented with a history of 18 months of eczematous benign - appearing single lesion restricted to her index finger. Local electron-beam radiation following tissue diagnosis resulted in full recovery.
October 2016: Harefuah
https://www.readbyqxmd.com/read/28529555/detection-of-p53-and-bcl-2-expression-in-cutaneous-hemangioma-through-the-quantum-dot-technique
#6
Tian Tang, Duan-Lian Zhang
Hemangioma is one of the most common types of infantile vascular benign tumor. The aim of the present study was to investigate the role of B-cell lymphoma 2 (Bcl-2) and tumor protein p53 (p53) in the proliferation and apoptosis of hemangioma cells. A total of 38 paraffin-embedded hemangioma specimens (16 males and 22 females) and another 5 paraffin-embedded healthy surrounding tissue samples, collected between January 2007 and December 2010, were obtained from the Department of Pathology at Renmin Hospital of Wuhan University (Wuhan, China)...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28526427/atypical-presentations-of-cutaneous-leishmaniasis-a-systematic-review
#7
REVIEW
Camilla Barros Meireles, Laís Chaves Maia, Gustavo Coelho Soares, Ilara Parente Pinheiro Teodoro, Maria do Socorro Vieira Gadelha, Cláudio Gleidiston Lima da Silva, Marcos Antonio Pereira de Lima
Cutaneous Leishmaniasis (CL) is endemic in 88 countries, showing relevant prevalences. The aim of this study was to perform a systematic review on atypical lesions of CL around the world, addressing clinico-epidemiological, immunological and therapeutic aspects. A search of the literature was conducted via electronic databases Scopus and PubMed for articles published between 2010 and 2015. The search terms browsed were "cutaneous leishmaniasis", "atypical" and "unusual". Based on the eligibility criteria, 34 out of 122 articles were included in the final sample...
May 17, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28526298/regulation-of-the-glycerol-transporter-aquaporin-3-by-histone-deacetylase-3-and-p53-in-keratinocytes
#8
Vivek Choudhary, Lawrence O Olala, Karen Kagha, Zhi-Qiang Pan, Xunsheng Chen, Rong Yang, Abigail Cline, Inas Helwa, Lauren Marshall, Ismail Kaddour-Djebbar, Meghan E McGee-Lawrence, Wendy B Bollag
Aquaporin-3 (AQP3), a water and glycerol channel, plays an important role in epidermal function, with studies demonstrating its involvement in keratinocyte proliferation, differentiation and migration and epidermal wound healing and barrier repair. Increasing speculation about the use of histone deacetylase (HDAC) inhibitors to treat skin diseases led us to investigate HDAC's role in the regulation of AQP3. The broad-spectrum HDAC inhibitor, suberolyanilide hydroxamic acid (SAHA) induced AQP3 mRNA and protein expression in a dose- and time-dependent manner in normal keratinocytes...
May 16, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28524061/immediate-hypersensitivity-reaction-to-pegylated-liposomal-doxorubicin-management-and-outcome-in-four-patients
#9
Saskia Ingen-Housz-Oro, Anne Pham-Ledard, Pauline Brice, Bénédicte Lebrun-Vignes, Ouidad Zehou, Delphine Reitter, Caroline Ram-Wolff, Nicolas Dupin, Martine Bagot, Olivier Chosidow, Marie Beylot-Barry
Hypersensitivity reactions (HSR) to pegylated liposomal doxorubicin (PLD; Caelyx(®)) have been reported, and symptoms usually resolve with drug withdrawal. However, the risk of relapse of severe HSR and prevention remain poorly described. To report the management and outcome in four patients with HSR due to PLD. Patient characteristics, premedication regimen, rate of infusion, time between onset and HSR, clinical manifestations, and management were documented. A first cycle of PLD was received for cutaneous T-cell lymphoma (n = 3) and Kaposi sarcoma (n = 1)...
May 19, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28516243/clinical-characteristics-risk-factors-and-long-term-outcome-of-114-patients-with-folliculotropic-mycosis-fungoides
#10
Iris Wieser, Casey Wang, Silvia Alberti-Violetti, Genevieve Lyons, Casey Tran, Rakshandra Talpur, Madeleine Duvic
Folliculotropic mycosis fungoides (FMF) is a distinct variant of mycosis fungoides (MF) where atypical T-cells invade the hair follicles. The objective was to assess the clinical features, risk factors for progression, long-term outcome and response to treatment modalities in a large cohort of FMF patients. We, therefore, conducted a single-center retrospective study, reviewing 114 patients with FMF seen from 1987 to 2015 at the cutaneous T-cell lymphoma clinic of the MD Anderson Cancer Center. The mean age at diagnosis of FMF was 57...
May 17, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28516080/cutaneous-anaplastic-large-t-cell-lymphoma-with-invasion-of-the-central-nervous-system-a-case-report
#11
Hyun-Nam Seo, Jin-Ho Seo, Cheol-Young Lee, Jihye Song, Jong-Hyun Kim, Hyun-Woo Kim
Anaplastic large T-cell lymphoma (ALCL) encompasses different clinical entities that can be aggressive or localized. Scalp anaplastic lymphoma kinase (ALK)-negative ALCL is considered a localized lymphoma, and usually extends to the regional lymph nodes; intracranial invasion is rare. A 74-year-old woman was diagnosed with scalp ALK-negative ALCL, but did not exhibit invasion of the lymph nodes. Computed tomography and magnetic resonance imaging revealed intracranial masses with bony erosions. We treated the patient using CHOP chemotherapy and achieved short-term regression of the scalp and intracranial lesions...
April 2017: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/28514279/impact-of-alemtuzumab-on-hiv-persistence-in-an-hiv-infected-individual-on-antiretroviral-therapy-with-sezary-syndrome
#12
Thomas Aagaard Rasmussen, James McMahon, J Judy Chang, Jori Symons, Michael Roche, Ashanti Dantanarayana, Afam Okoye, Bonnie Hiener, Sarah Palmer, Wen Shi Lee, Stephen Kent, Carrie Van Der Weyden, H Miles Prince, Paul U Cameron, Sharon R Lewin
OBJECTIVE: To study the effects of alemtuzumab on HIV persistence in an HIV-infected individual on antiretroviral therapy (ART) with Sezary syndrome, a rare malignancy of CD4+ T-cells DESIGN:: Case report. METHODS: Blood was collected 30 and 18 months prior to presentation with Sezary syndrome, at the time of presentation and during alemtuzumab. T-cell subsets in malignant (CD7-CD26-TCR-VBeta2+) and non-malignant cells were quantified by flow cytometry. HIV-DNA in total CD4+ T-cells, in sorted malignant and non-malignant CD4+ T-cells was quantified by PCR and clonal expansion of HIV-DNA assessed by full-length next-generation sequencing...
May 16, 2017: AIDS
https://www.readbyqxmd.com/read/28512419/successful-treatment-of-primary-cutaneous-peripheral-t-cell-lymphoma-presenting-acquired-ichthyosis-with-oral-bexarotene-monotherapy
#13
Kayo Tanita, Taku Fujimura, Yota Sato, Takanori Hidaka, Sadanori Furudate, Yumi Kambayashi, Akira Tsukada, Akira Hashimoto, Setsuya Aiba
Acquired ichthyosis (AI) is a reactive cutaneous manifestation that can be associated with malignant hematological disease, including cutaneous T-cell lymphoma (CTCL). Since it is difficult to distinguish AI from ichthyosiform mycosis fungoides, to select the treatment for CTCL with ichthyosis-like appearance and to evaluate its efficacy is sometimes challenging. In this report, we describe a case of primary cutaneous peripheral T-cell lymphoma not otherwise specified presenting AI successfully treated with oral bexarotene...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28505007/al-amyloidoma-of-the-skin-subcutis-cutaneous-amyloidosis-plasma-cell-dyscrasia-or-a-manifestation-of-primary-cutaneous-marginal-zone-lymphoma
#14
Noreen M Walsh, Ian Marie Lano, Peter Green, Christopher Gallant, Sylvia Pasternak, Thai Yen Ly, Luis Requena, Heinz Kutzner, Andreas Chott, Lorenzo Cerroni
It is unclear whether AL amyloidoma of the skin/subcutis represents a distinct entity, an indolent precursor of systemic amyloidosis, or a manifestation of cutaneous marginal zone lymphoma (cMZL). We collected 10 cases of cutaneous AL amyloidoma in order to better characterize the clinicopathologic features of this elusive entity (M:F=4:6; median age: 62.5 y, range: 31 to 82 y). Nine patients had a solitary nodule or plaque on the lower extremity (n=7), upper extremity (n=1), or chin (n=1). One patient had an AL amyloidoma on the right thigh and a second lesion on the right arm showing histopathologic features of cMZL without amyloid deposits...
May 12, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28504999/tumor-microenvironment-and-checkpoint-molecules-in-primary-cutaneous-diffuse-large-b-cell-lymphoma-new-therapeutic-targets
#15
Christina Mitteldorf, Arbeneshe Berisha, Monique C Pfaltz, Sigrid M C Broekaert, Michael P Schön, Katrin Kerl, Werner Kempf
Programmed death ligand 1 (PD-L1) is expressed by 20% to 57% of systemic diffuse large B cell lymphomas (DLBCLs). PD-L1 expression in primary cutaneous DLBCL (pcDLBCL) has not been studied so far. Sixteen paraffin-embedded tissue samples of pcDLBCL (13 leg type [LT], 3 others [OT]) were investigated for PD-1, PD-L1, and CD33 expression and the cellular composition of the tumor microenvironment, focusing on myeloid-derived suppressor cells (MDSCs) and tumor-associated macrophages. Membrane-bound PD-L1 expression by the tumor cells was observed in all samples, albeit to a variable extent (19...
May 12, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28500717/epigenetically-enhanced-photodynamic-therapy-epdt-is-superior-to-conventional-photodynamic-therapy-for-inducing-apoptosis-in-cutaneous-t-cell-lymphoma
#16
Katrin Agnes Salva, Gary S Wood
No abstract text is available yet for this article.
May 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28497585/disseminated-cd8-positive-cd30-positive-cutaneous-lymphoproliferative-eruption-with-overlapping-features-of-mycosis-fungoides-and-primary-cutaneous-anaplastic-large-cell-lymphoma-following-remote-solitary-lesional-presentation
#17
Jonathan J Davick, Krishna Aj Mutgi, Karolyn A Wanat, Brian K Link, Vincent Liu
CD8-positive, CD30-positive cutaneous lymphoproliferative disorders comprise a rare subset of T-cell lymphoproliferative conditions, including variants of primary cutaneous anaplastic large cell lymphoma, mycosis fungoides, lymphomatoid papulosis type D, cutaneous gamma-delta T-cell lymphoma, and cutaneous peripheral T-cell lymphoma. These entities share overlapping clinical, histopathologic, and immunophenotypic features, presenting both a clinical and pathological diagnostic challenge. Presented here is a 73-year-old man with a disseminated, indolent CD30+, CD8+ cutaneous lymphoproliferative disorder with overlapping clinical and histopathological features of both mycosis fungoides and primary cutaneous anaplastic large cell lymphoma, as well as features of lymphomatoid papulosis...
May 12, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28493286/comprehensive-analysis-of-cutaneous-t-cell-lymphoma-ctcl-incidence-and-mortality-in-canada-reveals-changing-trends-and-geographic-clustering-for-this-malignancy
#18
Feras M Ghazawi, Elena Netchiporouk, Elham Rahme, Matthew Tsang, Linda Moreau, Steven Glassman, Nathalie Provost, Martin Gilbert, Sara-Elizabeth Jean, Kevin Pehr, Denis Sasseville, Ivan V Litvinov
BACKGROUND: Previous reports of geographic clustering of cutaneous T-cell lymphoma (CTCL) in Texas, Pittsburgh, and Sweden as well as the occurrence of CTCL in married couples and family members raise a possibility of the existence of an external and potentially preventable trigger(s) for this rare skin cancer. METHODS: The authors studied CTCL incidence and mortality in Canada using 3 distinct population-based cancer databases. Data on patients' sex, age at the time of diagnosis, subtype of CTCL malignancy, reporting province, city, and postal code were analyzed...
May 10, 2017: Cancer
https://www.readbyqxmd.com/read/28489605/genetic-rearrangements-result-in-altered-gene-expression-and-novel-fusion-transcripts-in-s%C3%A3-zary-syndrome
#19
Katarzyna Iżykowska, Grzegorz K Przybylski, Claudia Gand, Floriane C Braun, Piotr Grabarczyk, Andreas W Kuss, Karolina Olek-Hrab, Armando N Bastidas Torres, Maarten H Vermeer, Willem H Zoutman, Cornelis P Tensen, Christian A Schmidt
Sézary syndrome (SS) is an aggressive, leukemic cutaneous T-cell lymphoma variant. Molecular pathogenesis of SS is still unclear despite many studies on genetic alterations, gene expression and epigenetic regulations. Through whole genome and transcriptome next generation sequencing nine Sézary syndrome patients were analyzed in terms of copy number variations and rearrangements affecting gene expression. Recurrent copy number variations were detected within 8q (MYC, TOX), 17p (TP53, NCOR1), 10q (PTEN, FAS), 2p (DNMT3A), 11q (USP28), 9p (CAAP1), but no recurrent rearrangements were identified...
April 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28479318/identification-of-somatic-mutations-in-primary-cutaneous-diffuse-large-b-cell-lymphoma-leg-type-by-massive-parallel-sequencing
#20
Sylvain Mareschal, Anne Pham-Ledard, Pierre Julien Viailly, Sydney Dubois, Philippe Bertrand, Catherine Maingonnat, Maxime Fontanilles, Elodie Bohers, Philippe Ruminy, Isabelle Tournier, Philippe Courville, Bernard Lenormand, Anne Bénédicte Duval, Emilie Andrieu, Laurence Verneuil, Beatrice Vergier, Hervé Tilly, Pascal Joly, Thierry Frebourg, Marie Beylot-Barry, Jean-Philippe Merlio, Fabrice Jardin
To determine whether the mutational profile of primary cutaneous diffuse large B-cell lymphoma leg-type (PCLBCL-LT) is unique by comparison with other diffuse large B-cell lymphoma (DLBCL) subtypes, we analyzed a total cohort of 28 PCLBCL-LT cases by next generation sequencing with a Lymphopanel designed for DLBCL. We also analyzed 12 pairs of tumor and control DNA samples by whole exome sequencing which led us to perform resequencing of three selected genes not included in the Lymphopanel: TBL1XR1, KLHL6 and IKZF3...
May 4, 2017: Journal of Investigative Dermatology
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