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MALT lymphoma

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https://www.readbyqxmd.com/read/27917621/association-of-nucleotide-binding-oligomerization-domain-receptors-with-peptic-ulcer-and-gastric-cancer
#1
Rajeeh Mohammadian Amiri, Mohsen Tehrani, Shirin Taghizadeh, Javad Shokri-Shirvani, Hafez Fakheri, Abolghasem Ajami
Host innate immunity can affect the clinical outcomes of Helicobacter pylori infection, including gastritis, gastric ulcer, gastric adenocarcinoma, and MALT lymphoma. Nucleotide binding oligomerization domain (NOD)-1 and -2 are two molecules of innate immunity which are involved in the host defense against H. pylori. This study aimed to evaluate the effect of the expression level of NOD1 and NOD2 on the susceptibility to gastric cancer as well as peptic ulcer in individuals with H. pylori infection. The gene expression levels of these molecules were compared in three groups of non-ulcer dyspepsia (NUD) as a control group (n=52); peptic ulcer disease (PUD), (n=53); and gastric cancer (GC), (n=39)...
October 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/27909810/erratum-to-differential-somatostatin-and-cxcr4-chemokine-receptor-expression-in-malt-type-lymphoma-of-gastric-and-extragastric-origin
#2
Susann Stollberg, Daniel Kaemmerer, Elisa Neubauer, Stefan Schulz, Ingrid Simonitsch-Klupp, Barbara Kiesewetter, Markus Raderer, Amelie Lupp
No abstract text is available yet for this article.
December 1, 2016: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/27895717/interferon-%C3%AE-promotes-gastric-lymphoid-follicle-formation-but-not-gastritis-in-helicobacter-infected-balb-c-mice
#3
Michelle Chonwerawong, Patrick Avé, Michel Huerre, Richard L Ferrero
BACKGROUND: Mouse infection studies have shown that interferon-γ (IFN-γ), a T helper 1 (Th1) cytokine, is required for the development of severe pathology induced by chronic Helicobacter infection. This finding is largely based on studies performed using mice that have polarised Th1 responses i.e. C57BL/6 animals. The current work aims to investigate the role of IFN-γ in Helicobacter-induced inflammation in BALB/c mice which have Th2-polarised immune responses. RESULTS: At 7 months post-infection with Helicobacter felis, IFN-γ deficiency in BALB/c mice had no significant effect on H...
2016: Gut Pathogens
https://www.readbyqxmd.com/read/27879257/a-phase-ii-study-of-rituximab-plus-lenalidomide-for-mucosa-associated-lymphoid-tissue-lymphoma-malt-lymphoma
#4
Barbara Kiesewetter, Ella Willenbacher, Wolfgang Willenbacher, Alexander Egle, Peter Neumeister, Daniela Voskova, Marius Erik Mayerhoefer, Ingrid Simonitsch-Klupp, Thomas Melchardt, Richard Greil, Markus Raderer
Chemotherapy-containing regimens are effective for the treatment of advanced MALT lymphoma but due to the indolent course of this disease investigating the use of immunomodulatory, chemotherapy-free strategies appears reasonable. Based on the activity of lenalidomide (LEN) monotherapy for MALT lymphoma and promising results with LEN plus rituximab (R) in several B-cell malignancies, we have studied this combination for MALT lymphoma. In this multicenter phase II study (AGMT MALT-2), patients received R 375 mg/m2 d1 and LEN 20 mg d1-21 every four weeks...
November 22, 2016: Blood
https://www.readbyqxmd.com/read/27873317/b-cell-activating-factor-signalling-pathway-is-associated-with-h-pylori-independence-in-gastric-malt-lymphoma-without-t-11-18-q21-q21
#5
Sung-Hsin Kuo, Hui-Jen Tsai, Chung-Wu Lin, Kun-Huei Yeh, Hsiao-Wei Lee, Ming-Feng Wei, Chia-Tung Shun, Ming-Shiang Wu, Ping-Ning Hsu, Li-Tzong Chen, Ann-Lii Cheng
We previously reported that activation of the B cell-activating factor (BAFF) pathway upregulates NF-κB and induces BCL3 and BCL10 nuclear translocation in H. pylori (HP)-independent gastric diffuse large B-cell lymphoma (DLBCL) tumours with evidence of mucosa-associated lymphoid tissue (DLBCL [MALT]). However, the significance of BAFF expression in HP-independence of gastric low-grade MALT lymphomas (MALT lymphoma) without t(11;18)(q21;q21) remains unexplored. Sixty-four patients who underwent successful HP eradication for localized HP-positive gastric MALT lymphomas without t(11;18)(q21;q21) were studied...
November 22, 2016: Journal of Pathology
https://www.readbyqxmd.com/read/27864293/expressions-of-the-caga-protein-and-caga-signaling-molecules-predict-h-pylori-dependence-of-early-stage-gastric-dlbcl
#6
Sung-Hsin Kuo, Li-Tzong Chen, Chung-Wu Lin, Kun-Huei Yeh, Chia-Tung Shun, Yi-Shin Tzeng, Jyh-Ming Liou, Ming-Shiang Wu, Ping-Ning Hsu, Ann-Lii Cheng
We previously reported that early-stage gastric diffuse large B-cell lymphomas (DLBCLs), including DLBCLs with (DLBCL[MALT]) and without ('pure' DLBCL) the features of MALT lymphomas, can achieve long-term complete remission after frontline Helicobacter pylori (HP) eradication (HPE). We recently reported that expression of CagA and CagA-signaling molecules (p-SHP2 and p-ERK) is associated with the HP-dependence of gastric MALT lymphoma. However, the significance of CagA and CagA-signaling molecules in gastric DLBCL remains unexplored...
November 18, 2016: Blood
https://www.readbyqxmd.com/read/27834907/probiotics-as-dietary-supplements-for-eradication-of-helicobacter-pylori-infection-in-children-a-role-beyond-infection
#7
EDITORIAL
Sherif T S Hassan, Miroslava Šudomová
For decades, treatment of infectious diseases has been a strong focus of interest, for both researchers and healthcare providers. Chronic infection with Helicobacter pylori (H. pylori) has been reported to be associated with several diseases, such as ulcer disease, gastric adenocarcinoma and mucosa-associated lymphoid tissue (MALT) lymphoma. Infection with H. pylori is generally acquired during childhood and can persist indefinitely, if not treated systematically. Unfortunately, although several strategies have shown high efficacy results, treatment of the H...
November 10, 2016: Children
https://www.readbyqxmd.com/read/27833662/differences-in-amino-acid-frequency-in-caga-and-vaca-sequences-of-helicobacter-pylori-distinguish-gastric-cancer-from-gastric-malt-lymphoma
#8
Masahiko Hashinaga, Rumiko Suzuki, Junko Akada, Takashi Matsumoto, Yasutoshi Kido, Tadayoshi Okimoto, Masaaki Kodama, Kazunari Murakami, Yoshio Yamaoka
BACKGROUND: Helicobacter pylori is a pathogenic bacterium that causes various gastrointestinal diseases. The most common gastric malignancies associated with H. pylori are gastric cancer and lymphoma of mucosa associated lymphoid tissue (MALT). Helicobacter pylori virulence genes, namely cagA and vacA, are known to be associated with malignancy development. Conventionally, cagA and vacA were classified by looking at partial sequences of the genes. However, such genotyping has hardly proven useful predicting different risks for gastric cancer or MALT lymphoma...
2016: Gut Pathogens
https://www.readbyqxmd.com/read/27830071/spontaneous-perforation-of-primary-gastric-b-cell-lymphoma-of-malt-a-case-report-and-literature-review
#9
Antoine El Asmar, Fouad Khattar, Marianne Alam, Ziad El Rassi
Primary gastric lymphoma is a rare malignant tumor that can sometimes present as spontaneous perforation. We present below a case of spontaneous primary gastric lymphoma perforation that was managed in our institution followed by a brief review of the literature and discussion.
November 2016: Clinical Case Reports
https://www.readbyqxmd.com/read/27825464/prognostic-factors-and-indications-for-treatment-of-waldenstr%C3%A3-m-s-macroglobulinemia
#10
REVIEW
Robert A Kyle, Stephen M Ansell, Prashant Kapoor
Waldenström's Macroglobulinemia (WM) is characterized by the presence of an IgM monoclonal protein regardless of its size, 10% or more bone marrow infiltration by small lymphocytes with a plasmacytoid or plasma cell differentiation. These cells usually have the following markers: IgM+, CD5(-), CD10(-), CD19(+), CD20(+) and CD23(-). Chronic lymphocytic leukemia as well as other lymphoproliferative disorders such as mantle cell, marginal zone and mucosa-associated lymphoid tissue (MALT) lymphoma must be excluded...
June 2016: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/27821034/regression-of-gastric-de-novo-diffuse-large-b-cell-lymphoma-following-helicobacter-pylori-eradication-a-case-report
#11
M Saito, M Masutani, K Mabe, K Izumiyama, A Mori, T Irie, M Tanaka, M Morioka, M Tanino
We report a case of primary gastric diffuse large B-cell lymphoma (DLBCL), de novo DLBCL without the features of mucosa-associated lymphoid tissue (MALT) lymphoma, which regressed after Helicobacter pylori (HP) eradication. A 27-year-old Japanese female with epigastralgia was revealed to have ulcerated lesions in the angle and antral regions on gastroscopy. Biopsy specimen was consistent with a diagnosis of DLBCL without MALT lymphoma component, indicating de novo development. Her clinical staging on the Lugano system was Stage I...
July 2016: Acta Gastro-enterologica Belgica
https://www.readbyqxmd.com/read/27819641/an-unwonted-clinicopathological-subtype-of-thyroid-primary-lymphoma
#12
Mihai Radu Diaconescu, Ioan Costea, Mihai Glod, Smaranda Diaconescu
Primary thyroid lymphomas account for less than 5% of all thyroid malignancies and the majority of cases concern non- Hodgkin's lymphoma of B and T-cell origin as well as Hodgkin's lymphoma. Mucosa-associated lymphoid tissue (MALT) lymphoma are a relatively recently described subset of low grade B-cell non-Hodgkin's lymphoma representing between 6 and 27% of the patients with thyroid lymphomas. These cases occur usually in patients with Hashimoto's thyroiditis having a long indolent course and delayed diagnosis, actually benefit from several therapeutic opportunities among them even surgery and a favorable prognostic...
2016: Chirurgia
https://www.readbyqxmd.com/read/27807552/mucosa-associated-lymphoid-tissue-lymphoma-of-the-sigmoid-colon-discovered-on-routine-screening-colonoscopy-in-patient-with-hepatitis-c-and-helicobacter-pylori-infection
#13
Rajiv Bhuta, Michael Bromberg, Ashish Bains, Ron Schey
Mucosa-associated lymphoid tissue (MALT) lymphoma is predominantly found in the stomach. Rarely, it is found in the proximal colon and even less so in the sigmoid colon. We present a rare case of primary sigmoid colon MALT lymphoma in a patient with concomitant Helicobacter pylori and hepatitis C infection. We also review current imaging, staging, and therapeutic modalities. To our knowledge, this is the first sigmoid colon MALT lymphoma reported in the United States.
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/27789481/long-term-course-of-patients-with-primary-ocular-adnexal-malt-lymphoma-a-large-single-institution-cohort-study
#14
Amrita Desai, Madhura G Joag, Lazaros Lekakis, Jennifer R Chapman, Francisco Vega, Robert Tibshirani, David Tse, Arnold Markoe, Izidore S Lossos
While Primary Ocular Adnexal MALT Lymphoma (POAML) is the most common orbital tumor, there are large gaps in knowledge of its natural history. We conducted a retrospective analysis of the largest reported cohort, consisting of 182 patients with POAML, diagnosed or treated at our institution to analyze long-term outcome, response to treatment, incidence and localization of relapse and transformation. The majority of patients (80%) presented with stage I disease. Overall, 84% of treated patients achieved a complete response after first-line therapy...
October 27, 2016: Blood
https://www.readbyqxmd.com/read/27780940/-gastric-mucosa-associated-lymphoid-tissue-lymphoma-based-on-outcome-of-domestic-treatment
#15
REVIEW
Jin Tae Jung
Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is associated with Helicobacter pylori infection. H. pylori eradication can be performed as a primary therapy regardless of H. pylori status. In Korea, six articles were published about low-grade gastric MALT lymphoma with H. pylori. Complete regression rate after H. pylori eradication is reported at 74.5% to 94.4%. Radiotherapy results in favorable clinical long-term outcomes in patients with early-stage gastric MALT lymphoma who fail H. pylori eradication therapy and those who are H...
October 25, 2016: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/27772905/primary-meningeal-malt-lymphoma-mimicking-lymphoplasmacytic-meningioma-a-case-report
#16
H M Manuchehri, M Yan
No abstract text is available yet for this article.
February 2016: Pathology
https://www.readbyqxmd.com/read/27738485/primary-b-cell-mucosa-associated-lymphoid-tissue-lymphoma-of-the-hard-palate-and-parotid-gland-report-of-one-case-and-review-of-the-literature
#17
Ipek Yonal-Hindilerden, Fehmi Hindilerden, Serkan Arslan, Nalan Turan-Guzel, Ibrahim Oner Dogan, Meliha Nalcaci
A 61-year-old woman was admitted to our hospital with an ulcerated palate mass and swelling of the right parotid gland. Incisional biopsy from the hard palate revealed an extranodal marginal zone B-cell lymphoma, also called mucosa-associated lymphoid tissue (MALT) lymphoma. Final diagnosis was MALT lymphoma of the parotid gland with concomitant involvement of an extremely seldom site of involvement: the hard palate. To our knowledge, this report illustrates the first case of MALT lymphoma of the hard palate and parotid gland without an underlying autoimmune disease...
November 2016: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/27730803/radiation-therapy-for-gastric-mucosa-associated-lymphoid-tissue-lymphoma-dose-volumetric-analysis-and-its-clinical-implications
#18
Hyeon Woo Lim, Tae Hyun Kim, Il Ju Choi, Chan Gyoo Kim, Jong Yeul Lee, Soo Jeong Cho, Hyeon Seok Eom, Sung Ho Moon, Dae Yong Kim
PURPOSE: To assess the clinical outcomes of radiotherapy (RT) using two-dimensional (2D) and three-dimensional conformal RT (3D-CRT) for patients with gastric mucosa-associated lymphoid tissue (MALT) lymphoma to evaluate the effectiveness of involved field RT with moderate-dose and to evaluate the benefit of 3D-CRT comparing with 2D-RT. MATERIALS AND METHODS: Between July 2003 and March 2015, 33 patients with stage IE and IIE gastric MALT lymphoma received RT were analyzed...
September 2016: Radiation Oncology Journal
https://www.readbyqxmd.com/read/27713775/diet-and-helicobacter-pylori-infection
#19
Łukasz Hołubiuk, Jacek Imiela
Helicobacter pylori infection has accompanied man for thousands of years. In some infected patients, a complex and dynamic pathogen-host reaction triggers pathogenic pathways resulting in development, inter alia, of atrophic gastritis, peptic ulcer disease (both gastric and duodenal), gastric adenocarcinoma, and MALT lymphoma. Large-scale eradication therapy is associated with a rapid increase in antibiotic resistance, gut flora composition disturbances, and increased risk of development, inter alia, of paediatric infectious diarrhoeas, atopic diseases, and oesophageal adenocarcinoma...
2016: Przegla̜d Gastroenterologiczny
https://www.readbyqxmd.com/read/27697589/increased-plasmacytic-differentiation-in-gastric-mucosa-associated-lymphoid-tissue-lymphomas-h-pylori-eradication-response-and-igg4-plasma-cell-association
#20
Sanghui Park, Soomin Ahn, Mineui Hong, Young Hyeh Ko
Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is a rare extranodal marginal zone B-cell lymphoma that is often associated with plasmacytic differentiation. However, the clinicopathologic characteristics of gastric MALT lymphoma with increased plasmacytic differentiation have not yet been studied. To assess the clinicopathologic implications of gastric MALT lymphoma with increased plasmacytic differentiation, thirty-six cases with increased plasmacytic differentiation and a control group of 16 cases with minimal plasmacytic differentiation were retrospectively collected from 65 primary gastric MALT lymphomas (2010~2012)...
September 30, 2016: Human Pathology
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