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T-cell lymphoma

Lorenz Jahn, Dirk M van der Steen, Renate S Hagedoorn, Pleun Hombrink, Michel G D Kester, Marjolein P Schoonakker, Daniëlle de Ridder, Peter A van Veelen, J H Frederik Falkenburg, Mirjam H M Heemskerk
Immunotherapy of B-cell leukemia and lymphoma with CD20-targeting monoclonal antibodies (mAbs) has demonstrated clinical efficacy. However, the emergence of unresponsive disease due to low or absent cell surface CD20 urges the need to develop additional strategies. In contrast to mAbs, T-cells via their T-cell receptor (TCR) can recognize not only extracellular but also intracellular antigens in the context of HLA molecules. We hypothesized that T-cells equipped with high affinity CD20-targeting TCRs would be able to recognize B-cell malignancies even in the absence of extracellular CD20...
October 20, 2016: Oncotarget
Zhihong Hu, L Jeffrey Medeiros, Zi Chen, Weina Chen, Shaoying Li, Sergej N Konoplev, Xinyan Lu, Lan V Pham, Ken H Young, Wei Wang, Shimin Hu
MYC rearrangement in mantle cell lymphoma (MCL) is rare, and its clinicopathologic significance is not well defined. We report 17 cases of MCL with 8q24/MYC rearrangement, detected at the time of initial diagnosis of MCL in 10 patients and subsequently during the clinical course in 7 patients. There were 12 men and 5 women with a median age of 61 years (range, 49 to 81 y). Fourteen patients had lymphadenopathy (Ann Arbor stage III/IV), and 3 patients presented with a leukemic pattern without lymphadenopathy...
October 21, 2016: American Journal of Surgical Pathology
J Gauthier, L Holmberg, D Wu, W Bensinger, A K Gopal, O Press, D Maloney, D J Green, B G Till, D Byelykh, A Shustov
No abstract text is available yet for this article.
October 24, 2016: Bone Marrow Transplantation
Yajuan Qiu, Zhiyuan Zhou, Zhaoming Li, Lisha Lu, Ling Li, Xin Li, Xinhua Wang, Mingzhi Zhang
PURPOSE: The aim of the present study was to identify the potential relevant biomarkers to predict the therapeutic response of advanced extranodal NK/T cell lymphoma(ENKTL) treated with asparaginase-based treatment. EXPERIMENTAL DESIGN: We used proteomic technology to identify differentially expressed proteins between chemotherapy-resistant and chemotherapy-sensitive patients. Then we used enzyme-linked immunosorbent assay to validate the predictive value of selective biomarkers...
October 24, 2016: Proteomics. Clinical Applications
Elham Vali Betts, Hooman H Rashidi
Diffuse large B-cell lymphoma (DLBCL) is a neoplasm of large B-lymphocytes with a diffuse growth pattern. The neoplastic cells express B-cell markers such as CD20 and PAX-5 and there may be coexpression of BCL-2, BCL-6, CD10, and MUM-1. With the exception of CD5, other T-cell markers are not commonly expressed in this neoplasm. Here, we describe the first reported case of a DLBCL with abnormal expression CD7 arising in a background of follicular lymphoma in an 81-year-old male who presented with a nontender left axillary mass...
2016: Case Reports in Hematology
Sakura Tomita, Yara Y Kikuti, Joaquim Carreras Esteban, Katsuyoshi Takata, Tadashi Yoshino, Sílvia Beà, Elias Campo, Naoya Nakamura
No abstract text is available yet for this article.
February 2016: Pathology
Li Ma, Morag Whyte, David Gillis, Gael E Phillips, Olivier Ramuz
No abstract text is available yet for this article.
February 2016: Pathology
Xiao-Qiu Li, Wei-Ge Wang, Ye Guo, Xiao-Yan Zhou, Xiao-Nan Hong, Xiong-Zeng Zhu
No abstract text is available yet for this article.
February 2016: Pathology
Agnes S Harahap, Stephanie Marisca, Maria F Ham, Endang S R Hardjolukito
No abstract text is available yet for this article.
February 2016: Pathology
Chandra Bura, Shaun Chou, Winny Varikatt
No abstract text is available yet for this article.
February 2016: Pathology
Raymund R Razonable
Kidney transplant recipients are at increased risk of developing clinical disease due to uncommon opportunistic viral pathogens. Refractory anemia is classically associated with parvovirus B19 infection. West Nile virus has the propensity to cause fever and neurologic symptoms, while spastic paresis and lymphoma can be triggered by human T cell lymphotrophic virus. In this review article, the epidemiology, clinical manifestations, diagnosis and treatment of less common viruses are discussed in the setting of kidney transplantation...
September 2016: Seminars in Nephrology
Verena Clarissa Samara, Adam de Havenon
Acute myelopathy is a rare presentation of systemic T-cell lymphoma. We present the case of a man aged 68 years with a diffuse erythematous maculopapular rash, followed by lower extremity paresthesias and progressive lower extremity weakness. Spinal MRI showed longitudinally extensive T2 hyperintensity with diffuse contrast enhancement. An atypical clonal T-lymphocyte population was identified in cerebrospinal fluid, peripheral blood and bone marrow aspirate, indicating a malignant T-cell lymphoproliferative disorder...
October 21, 2016: BMJ Case Reports
Gianluigi Franci, Federica Sarno, Angela Nebbioso, Lucia Altucci
Epigenetic modifications are functionally involved in gene expression regulation. In particular, histone posttranslational modifications play a crucial role in functional chromatin organization. Several drugs able to inhibit or stimulate some families of proteins involved in epigenetic histone regulation have been found, a number of which are FDA-approved for the treatment of cutaneous T-cell lymphoma or are in phase I/II/III clinical trials for solid tumors. Although some protein families, such as histone deacetylases and their inhibitors, are well characterized, our understanding of histone lysine demethylases is still incomplete...
October 21, 2016: Epigenetics: Official Journal of the DNA Methylation Society
Amy Webster, Philip Crea, Mark W Bamford, Roger Hew, Yvette Griffin, Fiona Miall
No abstract text is available yet for this article.
October 21, 2016: British Journal of Haematology
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...
October 20, 2016: Archives of Dermatological Research
Richard Colling, Daniel Royston, Elizabeth Soilleux
Clonality studies greatly assist in the diagnosis of challenging haematopathology cases. These robust and standardised tests aid the detection of clonal lymphoid populations and may assist in lymphocyte subtyping. In this case report, a gentleman presented with a high-grade transformation of a B cell neoplasm which histologically and immunophenotypically mimicked a T cell anaplastic large-cell lymphoma. With the aid of T cell and B cell receptor clonality studies, it was demonstrated that this tumour was in fact of B cell lineage...
September 2016: Journal of Hematopathology
Katharina T Prochazka, Thomas Melchardt, Florian Posch, Konstantin Schlick, Alexander Deutsch, Christine Beham-Schmid, Lukas Weiss, Thomas Gary, Daniel Neureiter, Eckhard Klieser, Richard Greil, Peter Neumeister, Alexander Egle, Martin Pichler
BACKGROUND: Blood-based parameters are gaining increasing interest as potential prognostic biomarkers in patients with diffuse large B-cell lymphoma (DLBCL). The aim of this study was to comprehensively evaluate the prognostic significance of pretreatment plasma uric acid levels in patients with newly diagnosed DLBCL. METHODS: The clinical course of 539 DLBCL patients, diagnosed and treated between 2004 and 2013 at two Austrian high-volume centres with rituximab-based immunochemotherapy was evaluated retrospectively...
October 20, 2016: British Journal of Cancer
X Jiao, W C Wang, J J Bao, W Xiao, H Yu, C F Wang
No abstract text is available yet for this article.
October 8, 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
Jamal El-Saghir, Farah Nassar, Nadim Tawil, Marwan El-Sabban
BACKGROUND: Exosomes are membrane nano-vesicles secreted by a multitude of cells that harbor biological constituents such as proteins, lipids, mRNA and microRNA. Exosomes can potentially transfer their cargo to other cells, implicating them in many patho-physiological processes. Mesenchymal stem cells (MSCs), residents of the bone marrow and metastatic niches, potentially interact with cancer cells and/or their derived exosomes. In this study, we investigated whether exosomes derived from adult T-cell leukemia/lymphoma (ATL) cells act as intercellular messengers delivering leukemia-related genes that modulate the properties of human MSCs in favor of leukemia...
October 19, 2016: Retrovirology
Giang Huong Nguyen, James Y Wang, Kenneth B Hymes, Cynthia M Magro
Adult T-cell leukemia/lymphoma (ATLL) is a rare and often aggressive lymphoid malignancy known to be associated with human T-cell lymphotropic virus type 1. There are 2 broad categories: acute and chronic. In the acute category, there is a leukemic and a lymphomatous variant, whereas in the designated "chronic" form, there is mild peripheral blood lymphocytosis. The intermediate "smoldering" category is without peripheral blood lymphocytosis with only discernible skin involvement. We present a 68-year-old human T-cell lymphotropic virus type 1 seropositive female with a mild peripheral blood atypical lymphocytosis who had indurated nodules on her hands of 2 years duration and a new scaly ichthyosiform eruption on her lower extremities...
October 12, 2016: American Journal of Dermatopathology
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