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https://www.readbyqxmd.com/read/28942303/lymphoma-koala-retrovirus-infection-and-reproductive-chlamydiosis-in-a-koala-phascolarctos-cinereus
#1
J Fabijan, L Woolford, S Lathe, G Simmons, F Hemmatzadeh, D J Trott, N Speight
Koala retrovirus (KoRV) infection, thought to be associated with lymphoid neoplasia, and Chlamydia pecorum-related ocular and urogenital disease are both highly prevalent in eastern Australian koala (Phascolarctos cinereus) populations. However, in South Australian koalas, little is known about KoRV infection and C. pecorum-associated disease. We report the first South Australian case of lymphoma in a KoRV-A-positive female koala also affected by severe reproductive chlamydiosis. The koala was from the Mount Lofty Ranges population and was presented with hindlimb lameness...
August 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28941602/clinical-and-experimental-aspects-of-notch-receptor-signaling-hajdu-cheney-syndrome-and-related-disorders
#2
Ernesto Canalis
BACKGROUND: There are four Notch transmembrane receptors that determine the fate and function of cells. Notch is activated following its interactions with ligands of the Jagged and Delta-like families that lead to the cleavage and release of the Notch intracellular domain (NICD); this translocates to the nucleus to induce the transcription of Notch target genes. Genetic disorders of loss- and gain-of-NOTCH function present with severe clinical manifestations. BASIC PROCEDURES: In this article, current knowledge of Hajdu Cheney Syndrome (HCS) and related disorders is reviewed...
August 24, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28937385/primary-classical-hodgkin-lymphoma-of-rectum-report-of-an-extremely-rare-case-and-review-of-the-literature
#3
Jayasudha Arundhathi Vasudevan, Rekha A Nair, K Rakul Nambiar
Hodgkin lymphoma (HL) commonly presents as nodal disease, but in a subset of cases, the disease primarily develops in extranodal sites. Primary classical HL of the gastrointestinal (GI) tract is an extremely rare occurrence. Primary nature of the disease is confirmed after a complete lymphoma work up including chest radiograph, computed tomography scan, peripheral blood, and bone marrow studies. Only a few cases of primary GI lymphomas with limited immunohistochemical or molecular confirmation have been reported in literature...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28935848/clinical-relevance-of-silent-red-blood-cell-autoantibodies
#4
Francesca R Mauro, Fabio Trastulli, Cristiano Alessandri, Guido Valesini, Gianluca Giovannetti, Costantino Riemma, Marika Porrazzo, Sara Pepe, Gioia Colafigli, Maria D Caputo, Maria S De Propris, Anna R Guarini, Gabriella Girelli, Serelina Coluzzi, Robin Foà
To evaluate the clinical significance of RBC autoantibodies in the absence of clinical signs of autoimmune hemolytic anemia (AHIA), we retrospectively analyzed the clinical course of 60 subjects with silent RBC autoantibodies (IgG, 24; IgM, 35; IgG+IgM, 1) diagnosed and followed at our institute. Asymptomatic RBC autoantibodies were detected in 5 (8.3%) pregnant females, 34 (56.7%) healthy individuals (blood donors, 32; subjects with abnormal agglutination of blood samples, 2) and 21 (35%) patients screened prior to surgery (benign disorders, 16; tumors, 5)...
September 21, 2017: Haematologica
https://www.readbyqxmd.com/read/28935645/philadelphia-chromosome-positive-b-lymphoblastic-lymphoma-involving-the-genitourinary-system-and-bone-at-initial-diagnosis-and-relapse
#5
Lan Zheng, Shimin Hu
No abstract text is available yet for this article.
September 21, 2017: Blood
https://www.readbyqxmd.com/read/28928845/exosomes-derived-from-bone-marrow-stromal-cells-decrease-the-sensitivity-of-leukemic-cells-to-etoposide
#6
Jianling Wang, Dong Li, Yong Zhuang, Jinqiu Fu, Xue Li, Qing Shi, Xiuli Ju
The aim of the study was to investigate the effect of exosomes derived from bone marrow stromal cells (BM-SCs) on the chemoresistant characteristics of nalm-6 cells treated with etoposide (VP16). The present study isolated exosomes from BM-SC-conditioned medium by using standard differential centrifugation steps and detected the expression of 70 kilodalton heat shock proteins (HSP70) and lysosomal-associated membrane protein 3 (CD63) in exosomes by western blot analysis. Nalm-6 cells were co-cultured with exosomes in the presence of VP16...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28928392/mucosa-associated-lymphoid-tissue-lymphoma-translocation-1-as-a-novel-therapeutic-target-for-rheumatoid-arthritis
#7
Chang Hoon Lee, Su Jeong Bae, Miok Kim
Emerging evidence suggests that mucosa-associated lymphoid tissue lymphoma translocation 1 (MALT1) is a key regulator of inflammatory diseases; however, the pathological role of MALT1 in rheumatoid arthritis (RA) is not well understood. Consequently, this protein has not been therapeutically targeted for the treatment of RA. MALT1 plays a role in the paracaspase pathway, has proteolytic activity and is involved in the regulation of inflammatory responses. In this study, we found that the MALT1-targeting inhibitory small molecule, MALT1 selective inhibitor 2-chloro-N-[4-[5-(3,4-dichlorophenyl)-3-(2-methoxyethoxy)-1H-1,2,4-triazol-1-yl]phenylacetamide (MI-2) strongly suppresses the differentiation of monocytes into osteoclasts in the absence or presence of the inflammatory cytokine tumour necrosis factor α...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28922373/dynein-light-chain-regulates-adaptive-and-innate-b-cell-development-by-distinctive-genetic-mechanisms
#8
Ashleigh King, Lingli Li, David M Wong, Rui Liu, Rebecca Bamford, Andreas Strasser, David M Tarlinton, Jörg Heierhorst
Mechanistic differences in the development and function of adaptive, high-affinity antibody-producing B-2 cells and innate-like, "natural" antibody-producing B-1a cells remain poorly understood. Here we show that the multi-functional dynein light chain (DYNLL1/LC8) plays important roles in the establishment of B-1a cells in the peritoneal cavity and in the ongoing development of B-2 lymphoid cells in the bone marrow of mice. Epistasis analyses indicate that Dynll1 regulates B-1a and early B-2 cell development in a single, linear pathway with its direct transcriptional activator ASCIZ (ATMIN/ZNF822), and that the two genes also have complementary functions during late B-2 cell development...
September 18, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28916148/chemokine-receptor-directed-imaging-and-therapy
#9
REVIEW
Andreas K Buck, Antje Stolzenburg, Heribert Hänscheid, Andreas Schirbel, Katharina Lückerath, Margret Schottelius, Hans-Jürgen Wester, Constantin Lapa
The C - X - C chemokine receptor 4 (CXCR4) and its natural ligand CXCL12 are key factors in the process of cell migration, homing of hematopoietic stem cells to the bone marrow, and represent important mediators of angiogenesis and cell proliferation. The CXCR4/CXCL12 interplay can be disrupted by CXCR4 antagonists such as Plerixafor which are already in daily clinical use, i.e. for mobilization and subsequent harvesting of hematopoietic progenitor cells and stem cell transplantation. In a pathological condition, involvement in the process of metastasis and homing of cancer cells to a protective niche has been described, making CXCR4 an attractive target for imaging and treatment of malignant diseases...
September 12, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28910997/paediatric-nuclear-medicine-imaging
#10
Lorenzo Biassoni, Marina Easty
Background: Nuclear medicine imaging explores tissue viability and function by using radiotracers that are taken up at cellular level with different mechanism. This imaging technique can also be used to assess blood flow and transit through tubular organs. Nuclear medicine imaging has been used in paediatrics for decades and this field is continuously evolving. Sources of data: The data presented comes from clinical experience and some milestone papers on the subject...
September 1, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/28903575/diagnostic-tools-of-waldenstr%C3%A3-ms-macroglobulinemia-best-possibilities-for-non-invasive-and-long-term-disease-monitoring
#11
K Growkova, Z Kufová, T Sevcikova, J Filipová, M Kascak, T Jelínek, S Grosicki, A Barchnicka, Ľ Roziaková, M Mistrík, M Simicek, R Hájek
Waldenströms macroglobulinemia (WM) is a B-cell malignancy characterized by high level of monoclonal immunoglobulin M (IgM) paraprotein in blood serum and associated with the bone marrow infiltration by malignant cells with lymphoplasmacytic differentiation. WM remains incurable advances in therapy. Most of WM cases are associated with a somatic point mutation L265P in MYD88. Significantly higher risk of progression from the IgM monoclonal gammopathy of undetermined significance (IgM MGUS) to WM for patients with mutated MYD88 gene suggests that this mutation is an early oncogenic event and plays a central role in development of malignant clones...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28902958/nonregenerative-immune-mediated-anemia-associated-with-a-diffuse-large-b-cell-lymphoma-in-a-captive-jaguar-panthera-onca
#12
Monika A Keresztes, Manfred Henrich, Penelope Baloi, Sascha Gerst, Jens-Christian Rudnick, Judith Langenstein, Andreas Moritz, Natali Bauer
An 18-year-old male castrated jaguar (Panthera onca) was presented with anorexia and continuous bleeding from the oral cavity after a history of fighting with the partner animal. Clinical evaluation revealed ulcerating lesions on the gingiva and hard palate and a hematoma on the tongue. Computed tomography of the head and endoscopic examination of the esophagus and stomach were unremarkable. Hematology and clinical chemistry revealed severe nonregenerative anemia, mild thrombocytopenia, and moderate azotemia...
September 13, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28901637/pet-ct-versus-bone-marrow-biopsy-in-the-initial-evaluation-of-bone-marrow-infiltration-in-various-pediatric-malignancies
#13
Claudia P Zapata, Branko Cuglievan, Catalina M Zapata, Raquel Olavarrieta, Scott Raskin, Kavita Desai, Guillermo De Angulo
Accurate staging is essential in the prognosis and management of pediatric malignancies. Current protocols require screening for marrow infiltration with bone marrow biopsy (BMB) as the gold standard. Positron emission tomography-computed tomography (PET-CT) is commonly used to complete the staging process and can also be used to evaluate marrow infiltration. OBJECTIVE: To compare PET-CT and BMB in the initial evaluation of bone marrow infiltration in pediatric cancers. DESIGN/METHOD: We retrospectively reviewed new cases of EWS, rhabdomyosarcoma, neuroblastoma, and lymphoma diagnosed between January 2009 and October 2014...
September 13, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28898343/-differential-diagnosis-of-bone-marrow-and-lung-granulomas-report-of-one-case
#14
Camila Peña, Andrés Soto, Pablo Villegas
The differential diagnosis of pulmonary tuberculosis and lymphoma with pulmonary infiltration is very difficult, given their similar clinical characteristics. We report a 59 year old female with weight loss, fever, dyspnea and cough of several months of duration. She had a cavitated mass in lung imaging. A positive conventional PCR lead to the diagnosis of tuberculosis, but she had negative smears and cultures for Mycobacterium tuberculosis. The patient did not respond to treatment and her clinical condition worsened...
May 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28893942/kaposi-sarcoma-herpesvirus-pathogenesis
#15
REVIEW
Giuseppe Mariggiò, Sandra Koch, Thomas F Schulz
Kaposi sarcoma herpesvirus (KSHV), taxonomical name human gammaherpesvirus 8, is a phylogenetically old human virus that co-evolved with human populations, but is now only common (seroprevalence greater than 10%) in sub-Saharan Africa, around the Mediterranean Sea, parts of South America and in a few ethnic communities. KSHV causes three human malignancies, Kaposi sarcoma, primary effusion lymphoma, and many cases of the plasmablastic form of multicentric Castleman's disease (MCD) as well as occasional cases of plasmablastic lymphoma arising from MCD; it has also been linked to rare cases of bone marrow failure and hepatitis...
October 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28892915/myeloid-sarcoma-presenting-as-nasal-and-orbital-mass-an-initial-manifestation-of-an-acute-myeloid-leukaemia
#16
Amita Jain Gupta, Shramana Mandal, Richa Gupta, Nita Khurana, Achal Gulati
Myeloid sarcoma is an extramedullary manifestation of Acute Myeloid Leukaemia and sometimes is the only indicator of the disease. The incidence varies between 3-9.1% of acute leukaemia cases. The blast infiltration is seen most commonly in skin, lymph node, gastrointestinal tract, bone, soft tissue though can involve any body site usually as a solitary lesion and is rarely seen in nasal cavity. We present two cases of myeloid sarcoma presenting as a nasal mass in a six year old girl and other as orbital mass in 32-year-old as an initial manifestation of acute myeloid leukaemia...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28892912/important-diagnostic-clues-for-diagnosing-splenic-marginal-zone-lymphoma-in-absence-of-splenic-histology
#17
Anisha Mohanpuria, Vijay Kumar, Pooja Suteri, Sadhna Marwah, Abhay Shankar Nigam
Splenic Marginal Zone Lymphoma (SMZL) is a rare B-cell neoplasm comprising less than 2% of non-Hodgkin lymphomas. We hereby report a case of SMZL in a 66-year-old female who presented with fever and massive splenomegaly. Peripheral blood smear examination showed atypical lymphoid cells showing variable cytoplasmic processes. Flowcytometric immunophenotyping of peripheral blood showed tumour cells which were found to be positive for CD19, CD79b and showing kappa light chain restriction along with lack of expression for CD5, CD10, CD23, CD103 and lambda...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28885361/angioimmunoblastic-t-cell-lymphoma-and-hypereosinophilic-syndrome-with-fip1l1-pdgfra-fusion-gene-effectively-treated-with-imatinib-a-case-report
#18
Masayo Yamamoto, Katsuya Ikuta, Yasumichi Toki, Mayumi Hatayama, Motohiro Shindo, Yoshihiro Torimoto, Toshikatsu Okumura
RATIONALE: Hypereosinophilic syndrome (HES) is a rare disorder characterized by hypereosinophilia and organ damage. Some cases of HES are caused by the FIP1L1/PDGFRA fusion gene and respond to imatinib. FIP1L1/PDGFRA-positive HES occasionally evolves into chronic eosinophilic leukemia or into another form of myeloproliferative neoplasm; however, the development of a malignant lymphoma is very rare. We present a rare case of angioimmunoblastic T-cell lymphoma (AITL) and HES with the FIP1L1/PDGFRA gene rearrangement...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28884033/high-grade-b-cell-neoplasm-with-surface-light-chain-restriction-and-tdt-coexpression-evolved-in-a-myc-rearranged-diffuse-large-b-cell-lymphoma-a-dilemma-in-classification
#19
Dina Sameh Soliman, Ahmad Al-Sabbagh, Feryal Ibrahim, Ruba Y Taha, Zafar Nawaz, Sarah Elkourashy, Abdulrazzaq Haider, Susanna Akiki, Mohamed Yassin
According to World Health Organization (WHO) classification (2008), B-cell neoplasms are classified into precursor B-cell or a mature B-cell phenotype and this classification was also kept in the latest WHO revision (2016). We are reporting a male patient in his fifties, with tonsillar swelling diagnosed as diffuse large B-cell lymphoma (DLBCL), germinal center. He received 6 cycles of RCHOP and showed complete metabolic response. Two months later, he presented with severe CNS symptoms. Flow cytometry on bone marrow (BM) showed infiltration by CD10-positive Kappa-restricted B-cells with loss of CD20 and CD19, and downregulation of CD79b...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28881335/the-great-mimicker-at-thoracolumbar-spine-non-hodgkin-s-lymphoma
#20
Turgut Akgül, Yücel Bilgin, Gökhan Karademir
PURPOSE: To report two cases with Non-Hodgkin's Lymphoma (NHL) in thoracolumbar spine with very different presentation. METHODS: Case 1; An 84-year-old female patient was admitted to our emergency clinic with paraparesis in both lower extremities. Magnetic resonance imaging (MRI) revealed an epidural mass at the level of the T12 vertebrae. She was operated immediately with wide laminectomy and posterior instrumentation because of the paraparesis of both lower extremities...
August 24, 2017: International Journal of Surgery Case Reports
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