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Primary effusion lymphoma

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https://www.readbyqxmd.com/read/29756323/primary-mediastinal-histiocytic-sarcoma-presenting-as-pleural-effusion
#1
Jie-Yang Jhuang, Wei-Yu Chen, Shih-Sung Chuang
Histiocytic sarcoma (HS) is a rare malignant neoplasm showing morphological and immunophenotypic features of mature tissue histiocytes. As HS may mimic non-Hodgkin lymphoma (NHL) pathologically, before the era of immunohistochemistry, many previously reported cases were misdiagnosed NHL. Up to date, there are only a few reports delineating the cytological features in fine-needle aspiration or bronchoalveolar lavage, but not in the effusion fluid yet. Herein, we report the case of a 61-year-old male with a mediastinal tumor presenting with malignant pleural effusion...
May 13, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29743366/regulation-of-virus-associated-lymphoma-growth-and-gene-expression-by-bacterial-quorum-sensing-molecules
#2
Jing Qiao, Yueyu Cao, Jovanny Zabaleta, Liang Yang, Lu Dai, Zhiqiang Qin
Kaposi sarcoma-associated herpesvirus (KSHV) can cause several human cancers including primary effusion lymphoma (PEL), which frequently occur in immunocompromised patients. KSHV infected patients often suffer from polymicrobial infections caused by opportunistic bacterial pathogens. Therefore, it is crucial to understand how these co-infected microorganisms or their secreted metabolites may affect KSHV infection and virus-associated malignancies pathogenesis. Quorum sensing (QS), a cell density-based intercellular communication system, employs extracellular diffusible signaling molecules to regulate bacterial virulence mechanisms in a wide range of bacterial pathogens, such as Pseudomonas aeruginosa , which is one of mostly common opportunistic microorganisms found in immunocompromised individuals...
May 9, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29740418/inhibition-of-tip60-reduces-lytic-and-latent-gene-expression-of-kaposi-s-sarcoma-associated-herpes-virus-kshv-and-proliferation-of-kshv-infected-tumor-cells
#3
Sydney Simpson, Guillaume Fiches, Maxime J Jean, Michael Dieringer, James McGuinness, Sinu P John, Meir Shamay, Prashant Desai, Jian Zhu, Netty G Santoso
Kaposi's sarcoma-associated herpesvirus (KSHV) is an oncogenic virus responsible for the development of Kaposi's sarcoma, primary effusion lymphoma (PEL), and Multicentric Castleman's disease in immunocompromised individuals. Despite the burden of these diseases there are few treatment options for afflicted individuals, due in part to our limited understanding of virus-host interactions. Tip60, a histone aceytltransferase (HAT) has been previously shown to interact with both the KSHV latency associated nuclear antigen protein (LANA), which is the main factor in maintaining the viral latent state, and ORF36, a viral kinase expressed in the lytic phase...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29739902/repurposing-cytarabine-for-treating-primary-effusion-lymphoma-by-targeting-kaposi-s-sarcoma-associated-herpesvirus-latent-and-lytic-replications
#4
Marion Gruffaz, Shenghua Zhou, Karthik Vasan, Teresa Rushing, Qing Liu Michael, Chu Lu, Jae U Jung, Shou-Jiang Gao
Oncogenic Kaposi's sarcoma-associated herpesvirus (KSHV) is etiologically linked to primary effusion lymphoma (PEL), an aggressive and nontreatable malignancy commonly found in AIDS patients. In this study, we performed a high-throughput screening of 3,731 characterized compounds and identified cytarabine, approved by the FDA for treating numerous types of cancer, as a potent inhibitor of KSHV-induced PEL. We showed the high efficacy of cytarabine in the growth inhibition of various PEL cells by inducing cell cycle arrest and apoptosis...
May 8, 2018: MBio
https://www.readbyqxmd.com/read/29733294/human-herpesvirus-encoded-kinase-induces-b-cell-lymphomas-in-vivo
#5
Penny M Anders, Nathan D Montgomery, Stephanie A Montgomery, Aadra P Bhatt, Dirk P Dittmer, Blossom Damania
Kaposi's sarcoma-associated herpesvirus (KSHV) is a gammaherpesvirus that is the etiological agent of the endothelial cell cancer Kaposi's sarcoma (KS) and 2 B cell lymphoproliferative disorders, primary effusion lymphoma (PEL) and multicentric Castleman's disease (MCD). KSHV ORF36, also known as viral protein kinase (vPK), is a viral serine/threonine kinase. We previously reported that KSHV vPK enhances cell proliferation and mimics cellular S6 kinase to phosphorylate ribosomal protein S6, a protein involved in protein synthesis...
May 7, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29732155/misdiagnosis-of-primary-pleural-dlbcl-as-tuberculosis-a-case-report-and-literature-review
#6
Xinmei Yang, Xiaofang Xu, Binbin Song, Qiang Zhou, Ying Zheng
Diffuse large B-cell lymphoma (DLBCL) is the most common type of non-Hodgkin lymphoma (NHL). DLBCL presents with pleural involvement at an advanced stage; however, primary pleural lymphomas without any other site of involvement are rare, and the possibility of misdiagnosis is high, particularly in developing countries, where tuberculosis or other severe pulmonary infections remain a major health concern. Furthermore, lymphoma and tuberculosis share a number of common clinical characteristics, such as fever, night sweats, feeling of satiety after a small meal, fatigue and unexplained weight loss, among others...
June 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29698475/cadm1-is-essential-for-kshv-encoded-vgpcr-and-vflip-mediated-chronic-nf-%C3%AE%C2%BAb-activation
#7
Richard Hunte, Patricia Alonso, Remy Thomas, Cassandra Alexandria Bazile, Juan Carlos Ramos, Louise van der Weyden, Juan Dominguez-Bendala, Wasif Noor Khan, Noula Shembade
Approximately 12% of all human cancers worldwide are caused by infections with oncogenic viruses. Kaposi's sarcoma herpesvirus/human herpesvirus 8 (KSHV/HHV8) is one of the oncogenic viruses responsible for human cancers, including Kaposi's sarcoma (KS), Primary Effusion Lymphoma (PEL), and the lymphoproliferative disorder multicentric Castleman's disease (MCD). Chronic inflammation mediated by KSHV infection plays a decisive role in the development and survival of these cancers. NF-κB, a family of transcription factors regulating inflammation, cell survival, and proliferation, is persistently activated in KSHV-infected cells...
April 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29681417/fulminant-primary-cardiac-lymphoma-with-sudden-cardiac-death-a-case-report-and-brief-review
#8
Jen-Fang Cheng, Sze-Hwei Lee, Ron-Bin Hsu, Shan-Chi Yu, Chia-Tung Shun, Pang-Shuo Huang, Ying-Hsien Chen, Chii-Ming Lee
Primary cardiac lymphoma (PCL) is very rare, with the variable clinical manifestations potentially leading to a delayed diagnosis. PCL is usually detected incidentally through image studies, whereas the diagnosis can be confirmed via analysis of pericardial effusion, endomyocardial biopsy tissue, or surgical specimens. Although no standard therapy has been established for PCL, without treatment, the prognosis is grave, with the estimated overall survival being approximately 1 year. We report a difficult diagnosis and complicated case of fulminant PCL, which is the first comprehensively reported case of PCL with secondary hemophagocytosis...
April 19, 2018: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/29669178/the-utility-of-multiparametric-flow-cytometry-in-the-detection-of-primary-effusion-lymphoma-pel
#9
Jacobo Galán, Isaac Martin, Itziar Carmona, José María Rodriguez-Barbero, Esperanza Cuadrado, Luis García-Alonso, José Antonio García-Vela
Primary effusion lymphoma (PEL) is a rare B cell lymphoproliferative disorder that arises predominantly in body cavities causing malignant effusions.The incidence of PEL is very low, accounting for approximately 4% of all HIV-associated non-Hodgkin lymphomas. PEL has also been described in elderly patients and after solid-organ transplantation. It is associated in all cases with human herpesvirus 8 (HHV8). We describe a case of PEL in a 88-year-old HIV-negative woman who presented with progressive dyspnea and moderate right-sided pleural effusion without significate lymphadenopathies or other effusions...
April 18, 2018: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/29651368/synchronous-pulmonary-neoplasms-a-chance-occurrence-or-is-there-more-than-meets-the-eye
#10
Uroosa Ibrahim, Amina Saqib, Manisha Pant, Gwenalyn Garcia, Marcel Odaimi
Primary bronchus-associated lymphoid tissue (BALT) lymphoma comprises 5% of non-Hodgkin's lymphoma (NHL) and usually has an indolent course. Synchronous primary lung cancers with BALT lymphoma are seldom seen in patients with adenocarcinoma of the lung. Synchronous squamous cell carcinoma (SCC) and BALT lymphoma is an extremely rare occurrence. We report an unusual case of stage 4 BALT lymphoma requiring treatment that revealed an underlying ipsilateral mass causing a diagnostic dilemma. An 84-year-old female with a history of systemic lupus erythematosus, deep vein thrombosis, and thrombotic microangiopathy presented to the hospital with cough and dyspnea on exertion...
February 6, 2018: Curēus
https://www.readbyqxmd.com/read/29643199/usefulness-of-kaposi-sarcoma-associated-herpesvirus-kshv-dna-viral-load-in-whole-blood-for-the-diagnosis-and-monitoring-of-kshv-associated-diseases
#11
Aude Jary, Valentin Leducq, Romain Palich, Adélie Gothland, Diane Descamps, Véronique Joly, Sidonie Lambert-Niclot, Corinne Amiel, Ana Canestri, Audrey Mirand, Elyanne Gault, Astrid Vabret, Marc-Antoine Valantin, Christine Katlama, Vincent Calvez, Nicolas Dupin, Jean-Philippe Spano, Anne-Geneviève Marcelin
Kaposi Sarcoma-Associated Herpesvirus (KSHV) is the etiologic agent of Kaposi's sarcoma (KS) but also in multicentric variant of Castleman disease (MCD) and primary effusion lymphoma (PEL), diseases occurring primarily in HIV-infected patients (1).….
April 11, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29619259/primary-effusion-lymphoma-without-an-effusion-a-rare-case-of-solid-extracavitary-variant-of-primary-effusion-lymphoma-in-an-hiv-positive-patient
#12
Hamza Hashmi, Drew Murray, Samer Al-Quran, William Tse
Primary effusion lymphoma (PEL) is a unique form of non-Hodgkin lymphoma, usually seen in severely immunocompromised, HIV-positive patients. PEL is related to human herpesvirus-8 (HHV-8) infection, and it usually presents as a lymphomatous body cavity effusion in the absence of a solid tumor mass. There have been very few case reports of HIV-positive patients with HHV-8-positive solid tissue lymphomas not associated with an effusion (a solid variant of PEL). In the absence of effusion, establishing an accurate diagnosis can be challenging, and a careful review of morphology, immunophenotype, and presence of HHV-8 is necessary to differentiate from other subtypes of non-Hodgkin lymphoma...
2018: Case Reports in Hematology
https://www.readbyqxmd.com/read/29560084/malt1-protease-activity-in-primary-effusion-lymphoma
#13
EDITORIAL
Mélanie Juilland, Luca Bonsignore, Margot Thome
No abstract text is available yet for this article.
February 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29535291/a-case-of-low-grade-primary-cardiac-lymphoma-with-pericardial-effusion-diagnosed-by-combined-18f-fluorodeoxyglucose-positron-emission-tomography-and-computed-tomography-fdg-pet-ct-imaging-and-effusion-cytology
#14
Hisanori Fukunaga, Yasuko Tatewaki, Tatsushi Mutoh, Hideo Shimomura, Shuzo Yamamoto, Chiaki Terao, Tomoko Totsune, Manabu Nakagawa, Yasuyuki Taki
BACKGROUND Primary cardiac lymphoma is rare and can be an aggressive disease, depending on the grade. A case is reported of low-grade primary cardiac lymphoma associated with a pericardial effusion. 18F-fluorodeoxyglucose positron emission tomography and computed tomography (FDG-PET/CT) imaging was useful in the diagnosis and in evaluating the disease activity in this case. CASE REPORT A 72-year-old Japanese woman visited a general practitioner, complaining of dyspnea associated with cardiac tamponade. Pericardiocentesis was performed, and Group V malignant cells were identified by cytology, suspicious for malignant lymphoma...
March 14, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29530011/clinical-and-misdiagnosed-analysis-of-primary-pulmonary-lymphoma-a-retrospective-study
#15
D Yao, L Zhang, P L Wu, X L Gu, Y F Chen, L X Wang, X Y Huang
BACKGROUND: The primary pulmonary lymphoma (PPL), with a low incidence, was highly misdiagnosed in clinic. The present study analyzes the clinical features, laboratory and imaging data, pathologic characteristics, and summarizes misdiagnosis reasons of PPL cases, aims to provide a better understanding and increase the accuracy of early diagnosis and minimize the misdiagnosis of PPL. METHODS: The clinical data of 19 cases were collected from the first affiliated hospital of Wenzhou medical university (PRC) from April 2010 to May 2016...
March 12, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29516290/ebv-positive-pel-like-lymphoma-that-developed-in-the-course-of-antisynthetase-syndrome-treated-with-tacrolimus
#16
Kimi Okada, Shoji Asakura, Tomofumi Yano, Takumi Kishimoto
Primary effusion lymphoma (PEL) is a rare type of extranodal lymphoma, typically of a B-cell origin, which presents as lymphomatous effusion with no nodal enlargement or tumor masses. The development PEL is universally associated with human herpes virus-8 (HHV-8) infection. Cases of HHV-8-negative primary lymphomatous effusion have recently been reported and referred to as HHV-8-unrelated PEL-like lymphoma. Some cases of this disease have been reported in iatrogenic immunocompromised patients. The mechanisms responsible for the inhibitory effects of the discontinuation of immunosuppressants other than methotrexate (MTX) against the disease, which have been demonstrated for MTX-associated lymphoproliferative disorders, have not yet been elucidated...
March 7, 2018: International Journal of Hematology
https://www.readbyqxmd.com/read/29505765/kshv-hhv8-associated-extracavitary-primary-effusion-lymphoma-presenting-as-multiple-lymphomatous-polyposis
#17
M D Cyrus Oster, M D Theodore Stein, M D Sumire Kitahara, M D Serhan Alkan, Qin Huang
Primary effusion lymphoma (PEL) is a distinct clinicopathologic entity usually characterized by presentation as a lymphomatous body cavity effusion in the absence of solid tumor mass or dissemination during its clinical course. PEL can also rarely occur as a solid lymphoma involving nodal and extranodal sites and is referred to as extracavitary PEL. Here we report a unique case of extracavitary PEL in a 49year-old HIV-seropositive patient, who presented with vague abdominal pain and 20 pound weight loss. Esophagogastroduodenoscopy and colonoscopy revealed >100 broad based intestinal polyps ranging from 2 mm to 3cm in size, spreading from the duodenum to the rectum as a typical impression of "intestinal polyposis syndrome"...
March 2, 2018: Human Pathology
https://www.readbyqxmd.com/read/29454632/a-case-of-epstein-barr-virus-negative-human-immunodeficiency-virus-related-primary-effusion-lymphoma
#18
Shinichiro Ota, Yuji Fujikura, Takayuki Yamamoto, Yohei Maki, Atsushi Kurokawa, Takuya Maeda, Soichiro Kanoh, Akihiko Kawana
Primary effusion lymphoma (PEL) is a rare subtype of large B-cell lymphoma associated with human herpesvirus-8. Most cases are co-infected with Epstein-Barr virus (EBV). The prognosis of PEL is extremely poor and no optimal treatment regimen has been established. We report a case of EBV-negative PEL in a 49-year-old human immunodeficiency virus-positive man, presenting with massive bilateral pleural effusion.
June 2018: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29426719/safety-and-preliminary-efficacy-of-vorinostat-with-r-epoch-in-high-risk-hiv-associated-non-hodgkin-s-lymphoma-amc-075
#19
Juan C Ramos, Joseph A Sparano, Michelle A Rudek, Page C Moore, Ethel Cesarman, Erin G Reid, David Henry, Lee Ratner, David Aboulafia, Jeanette Y Lee, Richard F Ambinder, Ronald Mitsuyasu, Ariela Noy
INTRODUCTION: Vorinostat (VOR), a histone deacetylase inhibitor, enhances the anti-tumor effects of rituximab (R) and cytotoxic chemotherapy, induces viral lytic expression and cell killing in Epstein-Barr virus-positive (EBV+ ) or human herpesvirus-8-positive (HHV-8+ ) tumors, and reactivates latent human immunodeficiency virus (HIV) for possible eradication by combination antiretroviral therapy (cART). PATIENTS AND METHODS: We performed a phase I trial of VOR given with R-based infusional EPOCH (etoposide, prednisone, vincristine, cyclophosphamide, and doxorubicin hydrochloride) (n = 12) and cART in aggressive HIV-associated B-cell non-Hodgkin lymphoma (NHL) in order to identify safe dosing and schedule...
March 2018: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/29416688/kshv-lana-upregulates-the-expression-of-epidermal-growth-factor-like-domain-7-to-promote-angiogenesis
#20
Suhani Thakker, Roxanne C Strahan, Alexandra N Scurry, Timsy Uppal, Subhash C Verma
Kaposi's sarcoma (KS) is a highly-vascularized tumor characterized by inflammation and extensive neo-angiogenesis. The KS tumor microenvironment is rich in inflammatory and pro-angiogenic cytokines. Here, we report that the expression of Epidermal growth factor-like domain 7 (EGFL7) is upregulated in Kaposi's sarcoma-associated herpes virus (KSHV) infected cells. EGFL7 is a secreted pro-angiogenic cytokine that has been implicated in angiogenesis and the proliferation of endothelial cells during many pathological conditions...
January 2, 2018: Oncotarget
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