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Lupus lymphoma

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https://www.readbyqxmd.com/read/29136797/unparalleled-sample-treatment-throughput-for-proteomics-workflows-relying-on-ultrasonic-energy
#1
Susana Jorge, J E Araújo, F M Pimentel-Santos, Jaime C Branco, Hugo M Santos, Carlos Lodeiro, J L Capelo
We report on the new microplate horn ultrasonic device as a powerful tool to speed proteomics workflows with unparalleled throughput. 96 complex proteomes were digested at the same time in 4min. Variables such as ultrasonication time, ultrasonication amplitude, and protein to enzyme ratio were optimized. The "classic" method relying on overnight protein digestion (12h) and the sonoreactor-based method were also employed for comparative purposes. We found the protein digestion efficiency homogeneously distributed in the entire microplate horn surface using the following conditions: 4min sonication time and 25% amplitude...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29120812/imaging-findings-in-systemic-childhood-diseases-presenting-with-dermatologic-manifestations
#2
REVIEW
Adam Z Fink, Julia K Gittler, Radhika N Nakrani, Jonathan Alis, Einat Blumfield, Terry L Levin
PURPOSE: Many childhood diseases often present with skin abnormalities with which radiologists are largely unfamiliar. Knowledge of associated dermatologic manifestations may aid the radiologist in confirming the diagnosis and recommending targeted imaging of affected organs. METHODS: We review the imaging findings in childhood diseases associated with dermatologic manifestations. FINDINGS: Diseases include dermatologic findings which herald underlying malignancy (Neuroblastoma, leukemia/lymphoma, Langerhans cell histiocytosis),are associated with risk of malignancy (Epidermolysis Bullosa, basal cell nevus syndrome, Cowden's syndrome, Tuberous Sclerosis),or indicate a systemic inflammatory/immune disorder (Kawasaki's disease, Henoch Schonlein Purpura, systemic lupus erythematosus, scleroderma, sarcoidosis, dermatomyositis and immune thrombocytopenic purpura)...
October 31, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29074164/defective-regulation-of-l1-endogenous-retroelements-in-primary-sjogren-s-syndrome-and-systemic-lupus-erythematosus-role-of-methylating-enzymes
#3
Clio P Mavragani, Adrianos Nezos, Irina Sagalovskiy, Surya Seshan, Kyriakos A Kirou, Mary K Crow
OBJECTIVE: To investigate whether altered DNA methylation contributes to the inappropriate expression of LINE-1 (L1) retroelements in primary Sjogren's syndrome (SS) and systemic lupus erythematosus (SLE). METHODS: Minor salivary glands (MSG) were obtained from 42 patients with primary SS [23 without adverse predictors for lymphoma development (SS-low risk), 7 SS-high risk and 12 complicated by B-cell lymphoma (SS-lymphoma)] and 17 sicca controls (SC). Additionally, kidney biopsy specimens and PBMCs were obtained from 23 and 73 lupus patients, respectively...
October 23, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29044021/-asia-syndrome-breast-implant-and-still-s-disease
#4
Cristhian Armenteros, Andrea Odzak, Florencia Arcondo, Marcela De Dios Soler, Tatiana Sinigier, Marcelo Zylberman
Connective tissue diseases associated with silicone breast implants have been widely discussed. In the last decade, siliconosis has been included in the autoimmune/inflammatory syndrome induced by adjuvants (ASIA) next to Gulf War syndrome, macrophage myofascitis and postvaccination phenomena. The ASIA syndrome may appear as lupus, rheumatoid arthritis, or more rarely, as adult Still's disease. We discuss the case of a patient with prolonged fever and clinical criteria for ASIA and Still's disease. The prostheses were resected and pathology showed absence of breast implant associated anaplastic lymphoma ALK (-)...
2017: Medicina
https://www.readbyqxmd.com/read/29042750/current-perspective-on-rituximab-in-rheumatic-diseases
#5
REVIEW
Tommaso Schioppo, Francesca Ingegnoli
The steadily increasing knowledge regarding pathogenetic mechanisms in autoimmune rheumatic diseases has paved the way to different therapeutic approaches. In particular, the market entry of biologics has dramatically modified the natural history of rheumatic chronic inflammatory diseases with a meaningful impact on patients' quality of life. Among the wide spectrum of available biological treatments, rituximab (RTX), first used in the treatment of non-Hodgkin's lymphoma, was later approved for rheumatoid arthritis and anti-neutrophil cytoplasmic antibodies-associated vasculitis...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29039997/orbital-t-cell-lymphoma-versus-lupus-panniculitits-a-t-cell-mediated-spectrum-of-orbital-lymphoproliferative-disease
#6
Alison B Huggins, Charles Kim, Michael P Rabinowitz
This is a case description of a single male patient found to have T-cell-mediated inflammation and lymphoproliferation of the orbit. Chronic T-cell-mediated inflammatory disease can pose a diagnostic challenge particularly in its differentiation from a neoplastic process. The histopathology in this case demonstrated features of both lupus erythematosus panniculitis and features of orbital T-cell lymphoma. While both are rare, lupus erythematosus panniculitis of the orbit is even more exceptional; this patient's indolent, chronic relapsing course distinguished itself from the typical aggression of orbital T-cell lymphoma...
October 17, 2017: Orbit
https://www.readbyqxmd.com/read/29038189/nodular-pulmonary-amyloidosis-a-complex-disease-with-malignancy-association
#7
Jacob M Core, Ali A Alsaad, Liuyan Jiang, Neal M Patel
Pulmonary amyloidosis is a rare disease that incorporates deposition of amyloid microfibril material in the lung parenchyma. The condition generally presents as an indolent subacute-to-chronic pulmonary disease and requires tissue biopsy to establish the diagnosis. Nodular pulmonary amyloidosis, a subtype of pulmonary amyloidosis, is characterised by special radiographic and pathological features. While the disease can be associated with inflammatory conditions; its association with mucosal-associated lymphoid tissue (MALT lymphoma) is unusual and carries management challenges...
October 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28978850/recent-topics-in-imids-and-cereblon
#8
Takumi Ito, Hiroshi Handa
Immunomodulatory drugs (IMiDs) are a new class of anticancer compounds that are derived from thalidomide. Lenalidomide and pomalidomide are well-known IMiDs, and they have already been approved by FDA for the treatment of several diseases, including multiple myeloma. Cereblon (CRBN) is a common primary target for IMiDs. It works as a substrate receptor of CRL4. Accumulating evidence has shown that the substrate specificity of CRL4(CRBN) is altered by ligands such as IMiDs. Recently, novel CRBN-binding compounds have been developed and are called "cereblon modulators"...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28945277/malt-lymphoma-arising-on-a-background-of-reactive-pulmonary-lymphoid-hyperplasia-in-a-patient-with-systemic-lupus-erythematosus
#9
Ute Laggner, Reena Khiroya, Andrew C Wotherspoon, Sujal R Desai, Andrew G Nicholson
Interstitial lung diseases are not infrequently complicated by development of malignancies and whilst most cases are carcinomas, rare cases of lymphoma have been reported,(1 2) these being diffuse large B-cell lymphomas and often associated with connective tissue disorders (CTDs). Reactive pulmonary lymphoid hyperplasia (RPLH), typically in the form of lymphoid interstitial pneumonia (LIP) often arises in patients with CTDs and only rarely shows malignant transformation,(3) with many of the early putative cases of transformation to MALT (mucosa-associated lymphoid tissue) lymphoma from LIP being lymphoma 'de novo'...
September 25, 2017: Histopathology
https://www.readbyqxmd.com/read/28940360/lys63-polyubiquitination-by-the-e3-ligase-casitas-b-lineage-lymphoma-b-cbl-b-modulates-peripheral-regulatory-t-cell-tolerance-in-patients-with-systemic-lupus-erythematosus
#10
Jorge Romo-Tena, Sandra Rajme-López, Luis Aparicio-Vera, Jorge Alcocer-Varela, Diana Gómez-Martín
T cells from systemic lupus erythematosus (SLE) patients display a wide array of anomalies in peripheral immune tolerance mechanisms. It has recently been described the role of ubiquitin ligases such as Cbl-b in these phenomena. However, its role in resistance to suppression phenotype in SLE has not been characterized, which was the aim of the present study. Thirty SLE patients (20 with active disease and 10 with complete remission) and 30 age- and sex-matched healthy controls were recruited. Effector (CD4+CD25-) and regulatory (CD4+CD25+) T cells were purified from PBMCs by magnetic selection...
September 23, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28924718/comprehensive-annotation-and-evolutionary-insights-into-the-canine-canis-lupus-familiaris-antigen-receptor-loci
#11
Jolyon Martin, Hannes Ponstingl, Marie-Paule Lefranc, Joy Archer, David Sargan, Allan Bradley
Dogs are an excellent model for human disease. For example, the treatment of canine lymphoma has been predictive of the human response to that treatment. However, an incomplete picture of canine (Canis lupus familiaris) immunoglobulin (IG) and T cell receptor (TR)-or antigen receptor (AR)-gene loci has restricted their utility. This work advances the annotation of the canine AR loci and looks into breed-specific features of the loci. Bioinformatic analysis of unbiased RNA sequence data was used to complete the annotation of the canine AR genes...
September 19, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28800143/immunohistochemistry-reveals-an-increased-proportion-of-myc-positive-cells-in-subcutaneous-panniculitis-like-t-cell-lymphoma-compared-with-lupus-panniculitis
#12
Sebastian Fernandez-Pol, Danielle De Stefano, Jinah Kim
BACKGROUND: Subcutaneous panniculitis-like T-cell lymphoma (SPTCL) is a malignant primary cutaneous T-cell lymphoma that shares significant clinical, histopathologic and immunophenotypic overlap with lupus erythematosus panniculitis (LEP). METHODS: We performed immunohistochemistry for the MYC oncoprotein on 23 cases of SPTCL (1 CD8 negative) and 12 cases of LEP to evaluate if there are quantitative or qualitative differences in protein expression of this marker in these entities...
November 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28774170/an-autopsy-case-of-epstein-barr-virus%C3%A2-associated-diffuse-large-b-cell-lymphoma-of-the-central-nervous-system-in-an-immunocompromised-host
#13
Sun-Young Park, Seong Ik Kim, Hannah Kim, Yoojin Lee, Sung-Hye Park
Lymphomas arising in the central nervous system (CNS) of immunocompromised hosts represent non-Hodgkin's lymphomas exclusively associated with Epstein-Barr virus (EBV). Here we report an autopsy case of EBV-associated CNS diffuse large B-cell lymphoma (DLBCL) in a host suffering from systemic lupus erythematosus who underwent immunosuppressive therapy. After autopsy, EBV-associated CNS DLBCL as well as pulmonary mixed aspergillosis and Pneumocystis jirovecii pneumonia were added to the clinical impressions of complicated pneumonia and cerebral hemorrhage in this immunocompromised patient...
August 4, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28765255/malignancy-in-pediatric-onset-systemic-lupus-erythematosus
#14
Sasha Bernatsky, Ann E Clarke, Omid Zahedi Niaki, Jeremy Labrecque, Laura E Schanberg, Earl D Silverman, Kristen Hayward, Lisa Imundo, Hermine I Brunner, Kathleen A Haines, Randy Q Cron, Kiem Oen, Linda Wagner-Weiner, Alan M Rosenberg, Kathleen M O'Neil, Ciarán M Duffy, Emily von Scheven, Lawrence Joseph, Jennifer L Lee, Rosalind Ramsey-Goldman
OBJECTIVE: To determine cancer incidence in a large pediatric-onset systemic lupus erythematosus (SLE) population. METHODS: Data were examined from 12 pediatric SLE registries in North America. Patients were linked to their regional cancer registries to detect cancers observed after cohort entry, defined as date first seen in the clinic. The expected number of malignancies was obtained by multiplying the person-years in the cohort (defined from cohort entry to end of followup) by the geographically matched age-, sex-, and calendar year-specific cancer rates...
October 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28727987/associations-of-autoimmunity-immunodeficiency-lymphomagenesis-and-gut-microbiota-in-mice-with-knockins-for-a-pathogenic-autoantibody
#15
Shweta Jain, Jerrold M Ward, Dong-Mi Shin, Hongsheng Wang, Zohreh Naghashfar, Alexander L Kovalchuk, Herbert C Morse
A number of mouse strains transgenic for B-cell receptors specific for nucleic acids or other autoantigens have been generated to understand how autoreactive B cells are regulated in normal and autoimmune mice. Previous studies of nonautoimmune C57BL/6 mice heterozygous for both the IgH and IgL knockins of the polyreactive autoantibody, 564, produced high levels of autoantibodies in a largely Toll-like receptor 7-dependent manner. Herein, we describe studies of mice homozygous for the knockins that also expressed high levels of autoantibodies but, unlike the heterozygotes, exhibited a high incidence of mature B-cell lymphomas and enhanced susceptibility to bacterial infections...
September 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28691866/safety-and-pharmacodynamics-of-venetoclax-abt-199-in-a-randomized-single-and-multiple-ascending-dose-study-in-women-with-systemic-lupus-erythematosus
#16
P Lu, R Fleischmann, C Curtis, S Ignatenko, S H Clarke, M Desai, S L Wong, K M Grebe, K Black, J Zeng, J Stolzenbach, J K Medema
Objective The anti-apoptotic protein B-cell lymphoma 2 (Bcl-2) may contribute to the pathogenesis of systemic lupus erythematosus. The safety, tolerability, and pharmacodynamics of the selective Bcl-2 inhibitor venetoclax (ABT-199) were assessed in women with systemic lupus erythematosus. Methods A phase 1, double-blind, randomized, placebo controlled study evaluated single ascending doses (10, 30, 90, 180, 300, and 500 mg) and multiple ascending doses (2 cycles; 30, 60, 120, 240, 400, and 600 mg for 1 week, and then 3 weeks off per cycle) of orally administered venetoclax...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28675185/an-enigmatic-trio-of-klinefelter-s-syndrome-autoimmune-hypothyroidism-and-nephrotic-syndrome
#17
A Rao, D Jain, H K Aggarwal, P Jain
Klinefelter's syndrome is the most common chromosomal disorder associated with testicular dysfunction and male infertility. Those affected by Klinefelter's syndrome are at increased risk of systemic lupus erythematosus, breast cancer, non-Hodgkin's lymphoma, and lung cancer. Nephrotic syndrome in association with Klinefelter's syndrome has never been reported in the literature.
June 2017: Journal of the Royal College of Physicians of Edinburgh
https://www.readbyqxmd.com/read/28654469/the-histopathological-spectrum-of-pseudolymphomatous-infiltrates-in-cutaneous-lupus-erythematosus
#18
Amanda Pereira, Gerardo Ferrara, Paola Calamaro, Carlo Cota, Cesare Massone, Francesca Boggio, Lucia Prieto-Torres, Lorenzo Cerroni
The occurrence of pseudolymphomatous infiltrates in cutaneous lupus erythematosus (cLE) is described mainly in lupus panniculitis and lupus tumidus/lymphocytic infiltration of the skin (Jessner-Kanof). We collected 15 cases of pseudolymphomatous cLE other than lupus panniculitis and lupus tumidus (M:F = 4:11; age range: 23-79 years; mean age: 50.9 years; median age: 57 years). Of the 15 cases, 9 (60%) were characterized by dense nodular infiltrates. Three cases (20%) showed an angiocentric pattern with cytological atypia of lymphoid cells; 2 cases (13...
June 20, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28626519/discovery-of-potent-and-selective-tricyclic-inhibitors-of-bruton-s-tyrosine-kinase-with-improved-druglike-properties
#19
Xiaojing Wang, James Barbosa, Peter Blomgren, Meire C Bremer, Jacob Chen, James J Crawford, Wei Deng, Liming Dong, Charles Eigenbrot, Steve Gallion, Jonathon Hau, Huiyong Hu, Adam R Johnson, Arna Katewa, Jeffrey E Kropf, Seung H Lee, Lichuan Liu, Joseph W Lubach, Jen Macaluso, Pat Maciejewski, Scott A Mitchell, Daniel F Ortwine, Julie DiPaolo, Karin Reif, Heleen Scheerens, Aaron Schmitt, Harvey Wong, Jin-Ming Xiong, Jianjun Xu, Zhongdong Zhao, Fusheng Zhou, Kevin S Currie, Wendy B Young
In our continued effort to discover and develop best-in-class Bruton's tyrosine kinase (Btk) inhibitors for the treatment of B-cell lymphomas, rheumatoid arthritis, and systemic lupus erythematosus, we devised a series of novel tricyclic compounds that improved upon the druglike properties of our previous chemical matter. Compounds exemplified by G-744 are highly potent, selective for Btk, metabolically stable, well tolerated, and efficacious in an animal model of arthritis.
June 8, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28614800/robust-memory-responses-against-influenza-vaccination-in-pemphigus-patients-previously-treated-with-rituximab
#20
Alice Cho, Bridget Bradley, Robert Kauffman, Lalita Priyamvada, Yevgeniy Kovalenkov, Ron Feldman, Jens Wrammert
Rituximab is a therapeutic anti-CD20 monoclonal antibody widely used to treat B cell lymphoma and autoimmune diseases, such as rheumatic arthritis, systemic lupus erythematosus, and autoimmune blistering skin diseases (AIBD). While rituximab fully depletes peripheral blood B cells, it remains unclear whether some preexisting B cell memory to pathogens or vaccines may survive depletion, especially in lymphoid tissues, and if these memory B cells can undergo homeostatic expansion during recovery from depletion...
June 15, 2017: JCI Insight
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