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Lymphoproliferative

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https://www.readbyqxmd.com/read/28443674/perinatal-bacterial-exposure-contributes-to-il-13-aeroallergen-response
#1
Benjamin A Turturice, Ravi Ranjan, Brian Nguyen, Lauren M Hughes, Kalista E Andropolis, Diane R Gold, Augusto A Litonjua, Emily Oken, David L Perkins, Patricia W Finn
There is a high prevalence of aeroallergen sensitivity in asthmatic populations, and seroreactivity to aeroallergens early in infancy is associated with increased risk of developing asthma later in life. In addition to allergen sensitivity, asthma development has been associated with differential microbial exposure and infection in early life. We have has previously shown that cord blood mononuclear cells respond to common aeroallergens (i.e., house dust mite (Der f1), cockroach (Bla g2)) as assayed by lymphoproliferation and cytokine (IL-13, IFN-γ) production...
April 26, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28440989/-diagnostic-approach-of-erythroderma-in-the-adult
#2
César Alfonso Maldonado-García, Ana Paula Orozco-Anahuati
Erythroderma consists on erythema and scaling that covers more than 90% of the cutaneous surface. It has multiple causes and for the most common we can use the acronym PALM (psoriasis, atopic dermatitis, lymphoproliferative disease and medication). It is important to diagnose the cause in order to get a prognosis and a targeted treatment. In 30% of the cases the cause is not evident and the patient requires periodic assessment to rule out evolution to a lymphoproliferative disease. In many cases, erythroderma is a chronic disease but it can also be a life-threatening dermatologic urgency that requires hospitalization...
May 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28439775/the-prognostic-significance-of-13q-deletions-of-different-sizes-in-patients-with-b-cell-chronic-lymphoproliferative-disorders-a-retrospective-study
#3
Shuhua Yi, Heng Li, Zengjun Li, Wenjie Xiong, Huimin Liu, Wei Liu, Rui Lv, Zhen Yu, Dehui Zou, Yan Xu, Gang An, Lugui Qiu
Patients with chronic lymphocytic leukemia (CLL) with 13q deletion as the sole cytogenetic abnormality usually have a favorable outcome, but the frequency of the 13q14 deletion and its impact on the outcome of other B-cell chronic lymphoproliferative disorders (BCLPDs) remain unclear. To further characterize this aberration, we investigated the prognostic significance of 13q deletion in 541 patients with BCLPDs. We performed fluorescence in situ hybridization (FISH) studies with 13q locus-specific LSI-D13S25 and LSI-RB1 probes...
April 24, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28432802/subsequent-malignancies-after-allogeneic-hematopoietic-stem-cell-transplantation
#4
Mehmet Gündüz, Mehmet Özen, Uğur Şahin, Selami Koçak Toprak, Sinem Civriz Bozdağ, Meltem Kurt Yüksel, Önder Arslan, Muhit Özcan, Taner Demirer, Meral Beksaç, Osman İlhan, Günhan Gürman, Pervin Topçuoğlu
We evaluated 979 patients for the development of post-transplant lymphoproliferative disease (PTLD) and solid malignancies after allogeneic hematopoietic stem cell transplantations (allo-HSCT) as a late complication. We found 15 (1.5%) subsequent malignancies; three of these malignancies were PTLD, and twelve were solid tumors. The median time from allo-HSCT to the development of PTLD was 9 (3-20) months and that from allo-HSCT to the development of solid tumors was 93 (6-316) months. The cumulative incidence of evolving subsequent malignancy in patients was 1...
April 22, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28431200/the-utility-of-flow-cytometry-in-differentiating-nk-t-cell-lymphoma-from-indolent-and-reactive-nk-cell-proliferations
#5
Sanjay de Mel, Jenny Bei Li, Muhammad Bilal Abid, Tiffany P L Tang, Hui Ming Tay, Wen Chang Ting, Li Mei Poon, Tae Hoon Chung, Benjamin Mow, Allison Tso, Kiat Hoe Ong, Wee Joo Chng, Te Chih Liu
BACKGROUND: The WHO defines 3 categories of NK cell malignancies; extra nodal NK/T cell lymphoma (NKTCL), aggressive NK cell leukaemia, and the provisional entity chronic lymphoproliferative disorder of NK cells (CLPD-NK). Although the flow cytometric (FC) phenotype of CLPD-NK has been described, studies on FC phenotype of NKTCL are limited. To the best of our knowledge ours is the first study to compare the phenotype of NKTCL, CLPD-NK, reactive NK lymphocytosis (RNKL), and normal NK cells using eight colour (8C) FC...
April 21, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/28427406/latent-membrane-protein-1-lmp1-expression-in-hodgkin-lymphoma-and-its-correlation-with-clinical-and-histologic-parameters
#6
Atif Ali Hashmi, Zubaida Fida Hussain, Kashif Ali Hashmi, Muhammad Irfan Zafar, Muhammad Muzzammil Edhi, Naveen Faridi, Mehmood Khan
BACKGROUND: Hodgkin lymphoma is one of the most prevalent lymphoproliferative disorders in Pakistan; however, no risk factors for this disease have yet to be established in our population. Epstein-Barr virus (EBV) is a well-known risk factor for Hodgkin lymphoma in endemic regions of the world; however, frequency of its association in our population has not been widely studied. Latent membrane protein 1 (LMP1) expression by immunohistochemistry (IHC) is a surrogate marker of EBV in Hodgkin lymphoma...
April 20, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28425076/monoclonal-gammopathy-of-renal-significance-mgrs-the-characteristics-and-significance-of-a-new-meta-entity
#7
REVIEW
Mariana Ciocchini, Jorge Arbelbide, Carlos G Musso
Monoclonal gammopathy of renal significance (MGRS) is a new nosological group of entities (meta-entity) defined in 2012, whose pathogenesis depends on monoclonal immunoglobulins (Ig) secreted by low-grade lymphoproliferative disorders, which belong to M-protein-related diseases. Renal damage is the result of monoclonal Ig deposit or its activity as autoantibodies, which can compromise any nephronal area. MGRS does not include kidney diseases produced by high-grade lymphoproliferative disorders as well as those whose pathogenesis are independent of monoclonal Ig (such as drug toxicity or metabolic disorders)...
April 19, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28424749/development-of-asymmetric-facial-depigmentation-in-a-patient-treated-with-dasatinib-with-new-onset-hypovitaminosis-d-case-report-and-review-of-the-literature
#8
Kirsten C Webb, Magdalena Harasimowicz, Monica Janeczek, Jodi Speiser, James Swan, Rebecca Tung
Dasatinib is a second-generation tyrosine kinase inhibitor (TKI) used to treat imatinib-resistant chronic myelogenous leukemia (CML), as well as other Philadelphia chromosome-positive lymphoproliferative disorders. While the most commonly reported cutaneous side effects with this therapy include a morbilliform eruption, skin exfoliation, and skin irritation, pigmentary abnormalities have also been observed, albeit much more rarely. We present the case of a 72-year-old South Asian male with CML who presented with new-onset hypopigmentation of his face and scalp three years after a dose increase of dasatinib therapy, in the setting of newly discovered borderline hypovitaminosis D...
2017: Case Reports in Dermatological Medicine
https://www.readbyqxmd.com/read/28423722/the-importance-of-the-genomic-landscape-in-waldenstr%C3%A3-m-s-macroglobulinemia-for-targeted-therapeutical-interventions
#9
REVIEW
Antonio Sacco, Adriano Fenotti, Loredana Affò, Stefano Bazzana, Domenico Russo, Marco Presta, Michele Malagola, Antonella Anastasia, Marina Motta, Christopher J Patterson, Giuseppe Rossi, Luisa Imberti, Steven P Treon, Irene M Ghobrial, Aldo M Roccaro
The Literature has recently reported on the importance of genomics in the field of hematologic malignancies, including B-cell lymphoproliferative disorders such as Waldenström's Macrolgobulinemia (WM). Particularly, whole exome sequencing has led to the identification of the MYD88L265P and CXCR4C1013G somatic variants in WM, occurring in about 90% and 30% of the patients, respectively. Subsequently, functional studies have demonstrated their functional role in supporting WM pathogenesis and disease progression, both in vitro and in vivo, thus providing the pre-clinical evidences for extremely attractive targets for novel therapeutic interventions in WM...
March 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421369/immunophenotypic-profiles-for-distinguishing-orbital-mucosa-associated-lymphoid-tissue-lymphoma-from-benign-lymphoproliferative-tumors
#10
Shunichiro Ueda, Yoshihiko Usui, Takeshi Nagai, Daniel Diaz-Aguilar, Toshitaka Nagao, Hiroshi Goto
PURPOSE: To evaluate novel immunophenotypic profiles of patients with orbital lymphoproliferative tumors. METHODS: From 2006 to 2014, surgical biopsies from consecutive patients with newly diagnosed orbital mucosa-associated lymphoid tissue (MALT) lymphoma and IgG4-related ophthalmic disease (IgG4-ROD) were collected from Tokyo Medical University Hospital. A total of 44 tumors from 44 patients were analyzed, including 21 with orbital MALT lymphoma (11 men and 10 women, mean age 67...
April 18, 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28421060/the-heme-metabolite-carbon-monoxide-facilitates-kshv-infection-by-inhibiting-tlr4-signaling-in-endothelial-cells
#11
Sara Botto, Jean K Gustin, Ashlee V Moses
Kaposi sarcoma herpesvirus (KSHV) is the etiologic agent of Kaposi sarcoma (KS) and certain rare B cell lymphoproliferative disorders. KSHV infection of endothelial cells (EC) in vitro increases expression of the inducible host-encoded enzyme heme oxygenase-1 (HO-1), which is also strongly expressed in KS tumors. HO-1 catalyzes the rate-limiting step in the conversion of heme into iron, biliverdin and the gasotransmitter carbon monoxide (CO), all of which share anti-apoptotic, anti-inflammatory, pro-survival, and tumorigenic activities...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28419429/mutational-landscape-of-b-cell-post-transplant-lymphoproliferative-disorders
#12
Thomas Menter, Darius Juskevicius, Mary Alikian, Juerg Steiger, Stephan Dirnhofer, Alexandar Tzankov, Kikkeri N Naresh
It is currently unclear whether post-transplant diffuse large B-cell lymphomas (PT-DLBCL) display a similar genomic landscape as DLBCL in immunocompetent patients (IC-DLBCL). We investigated 50 post-transplant lymphoproliferative disorders (PTLDs) including 37 PT-DLBCL samples for somatic mutations frequently observed in IC-DLBCL. Targeted Next Generation Sequencing (NGS) using the Ion Torrent platform and a customized panel of 68 genes was performed on genomic DNA. Non-tumoural tissue was sequenced to exclude germline variants in cases where available...
April 17, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28418900/therapeutic-inhibition-of-usp7-pten-network-in-chronic-lymphocytic-leukemia-a-strategy-to-overcome-tp53-mutated-deleted-clones
#13
Giovanna Carrà, Cristina Panuzzo, Davide Torti, Guido Parvis, Sabrina Crivellaro, Ubaldo Familiari, Marco Volante, Deborah Morena, Marcello Francesco Lingua, Mara Brancaccio, Angelo Guerrasio, Pier Paolo Pandolfi, Giuseppe Saglio, Riccardo Taulli, Alessandro Morotti
Chronic Lymphocytic Leukemia (CLL) is a lymphoproliferative disorder with either indolent or aggressive clinical course. Current treatment regiments have significantly improved the overall outcomes even if higher risk subgroups - those harboring TP53 mutations or deletions of the short arm of chromosome 17 (del17p) - remain highly challenging. In the present work, we identified USP7, a known de-ubiquitinase with multiple roles in cellular homeostasis, as a potential therapeutic target in CLL. We demonstrated that in primary CLL samples and in CLL cell lines USP7 is: i) over-expressed through a mechanism involving miR-338-3p and miR-181b deregulation; ii) functionally activated by Casein Kinase 2 (CK2), an upstream interactor known to be deregulated in CLL; iii) effectively targeted by the USP7 inhibitor P5091...
March 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28406989/escdl-1-a-new-cell-line-derived-from-chicken-embryonic-stem-cells-supports-efficient-replication-of-mardiviruses
#14
Jean-François Vautherot, Christian Jean, Laetitia Fragnet-Trapp, Sylvie Rémy, Danièle Chabanne-Vautherot, Guillaume Montillet, Aurélie Fuet, Caroline Denesvre, Bertrand Pain
Marek's disease virus is the etiological agent of a major lymphoproliferative disorder in poultry and the prototype of the Mardivirus genus. Primary avian somatic cells are currently used for virus replication and vaccine production, but they are largely refractory to any genetic modification compatible with the preservation of intact viral susceptibility. We explored the concept of induction of viral replication permissiveness in an established pluripotent chicken embryonic stem cell-line (cES) in order to derive a new fully susceptible cell-line...
2017: PloS One
https://www.readbyqxmd.com/read/28404814/nucleotide-binding-oligomerization-domain-nod-signaling-defects-and-cell-death-susceptibility-cannot-be-uncoupled-in-x-linked-inhibitor-of-apoptosis-xiap-driven-inflammatory-disease
#15
Steven M Chirieleison, Rebecca A Marsh, Prathna Kumar, Joseph K Rathkey, George R Dubyak, Derek W Abbott
The X-linked inhibitor of apoptosis (XIAP) protein has been identified as a key genetic driver of two distinct inflammatory disorders, X-linked lymphoproliferative syndrome 2 (XLP-2) and very early onset inflammatory bowel disease (VEO-IBD). Molecularly, the role of XIAP mutations in the pathogenesis of these disorders is unclear. Recent work has consistently shown XIAP to be critical for signaling downstream of the Crohns disease susceptibility protein nucleotide-binding oligomerization domain containing 2 (NOD2); however, the reported effects of XLP-2 and VEO-IBD XIAP mutations on cell death have been inconsistent...
April 12, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28403848/laparoscopic-treatment-of-abdominal-unicentric-castleman-s-disease-a-case-report-and-literature-review
#16
Umberto Bracale, Francesco Pacelli, Marco Milone, Umberto Marcello Bracale, Maurizio Sodo, Giovanni Merola, Teresa Troiani, Enrico Di Salvo
BACKGROUND: Castleman's disease is a rare lymphoproliferative disorder of unknown etiology that most commonly presents as a mediastinal nodal mass. It is exceptionally uncommon for Castleman's disease to present in the mesentery and, only 53 cases have ever been described in the literature. Standard treatment for this lymphoproliferative disorder involving a single node is a complete "en bloc" surgical resection which has proven to be a curative approach in almost all cases without recurrence after 20 years of follow up...
April 12, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28401573/is-tocilizumab-a-potential-therapeutic-option-for-refractory-unicentric-castleman-disease
#17
Muhammad Bilal Abid, Rachel Peck, Muhammad Abbas Abid, Wesam Al-Sakkaf, Yuening Zhang, Giles S Dunnill, Konrad Staines, Iara-Maria Sequeiros, Lisa Lowry
Castleman disease is a rare lymphoproliferative disorder with 2 distinctly defined clinical forms. While multicentric Castleman disease (UCD) poses a potential therapeutic challenge, unicentric variant has historically been considered curable with surgical resection. Hence, little is known to guide management of patients with UCD, refractory to surgical resection and combination chemotherapy. We present a case of a patient, negative for HIV and HHV-8, who had an unsuccessful surgical intervention and no response to radiotherapy and chemotherapy...
April 11, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28400635/oral-and-cutaneous-lymphomas-other-than-mycosis-fungoides-and-s%C3%A3-zary-syndrome-in-a-mexican-cohort-recategorization-and-evaluation-of-international-geographical-disparities
#18
Amparo Hernández-Salazar, Jorge Andrés García-Vera, Yann Charli-Joseph, Guadalupe Ortiz-Pedroza, Silvia Méndez-Flores, Rocío Orozco-Topete, Ana Lilia Morales-Leyte, Judith Domínguez-Cherit, Carmen Lome-Maldonado
BACKGROUND: Nonmycosis fungoides/Sézary syndrome (non-MF/SS) primary cutaneous lymphomas (PCL) are currently categorized under the 2005-World Health Organization/European Organization for Research and Treatment of Cancer (WHO-EORTC) classification for PCL. These differ in behavior from secondary cutaneous lymphomas (SCL) and to lymphomas limited to the oral cavity (primary oral lymphomas [POL]) both categorized under the 2016-WHO classification for lymphoid neoplasms. AIMS: This study aims to report the first series of non-MF/SS PCL, SCL, and POL in a Mexican cohort, examine the applicability of current classification systems and compare our findings with those from foreign cohorts...
March 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28400634/a-literature-revision-in-primary-cutaneous-b-cell-lymphoma
#19
R La Selva, S Alberti Violetti, C Delfino, V Grandi, S Cicchelli, C Tomasini, M T Fierro, E Berti, N Pimpinelli, P Quaglino
The term "Primary Cutaneous B-Cell Lymphoma" (PCBCL) comprehends a variety of lymphoproliferative disorders characterized by a clonal proliferation of B-cells primarily involving the skin. The absence of evident extra-cutaneous disease must be confirmed after six-month follow-up in order to exclude a nodal non-Hodgkin's lymphoma (NHL) with secondary cutaneous involvement, which may have a completely different clinical behavior and prognosis. In this article, we have summarized the clinico-pathological features of main types of PCBCL and we outline the guidelines for management based on a review of the available literature...
March 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28400633/new-targeted-treatments-for-cutaneous-t-cell-lymphomas
#20
Martine Bagot
Cutaneous T-cell lymphomas (CTCLs) represent a group of rare and heterogeneous diseases that are very difficult to treat at advanced stages. The development of monoclonal antibodies is a new hope for the treatment of these diseases. Alemtuzumab (Campath) is a humanized IgG1 kappa monoclonal antibody specific for CD52, an antigen expressed by most T and B lymphocytes. Alemtuzumab may frequently induce long-term remissions in patients with Sezary syndrome but high-dose treatments lead to severe cytopenia, immune depletion, and opportunistic infections...
March 2017: Indian Journal of Dermatology
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