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https://www.readbyqxmd.com/read/29289361/the-pathobiology-of-primary-testicular-diffuse-large-b-cell-lymphoma-implications-for-novel-therapies
#1
REVIEW
David D W Twa, Anja Mottok, Kerry J Savage, Christian Steidl
Primary testicular lymphomas (PTL) are the most prevalent type of testicular cancer arising in men over the age of 60. PTL accounts for approximately 1-2% of all non-Hodgkin lymphomas and most present with localized disease but despite this, outcome is poor. The majority of cases represent an extranodal manifestation of diffuse large B-cell lymphoma (DLBCL), known as primary testicular DLBCL (PT-DLBCL). Gene expression profiling has established that over 75% of PT-DLBCLs resemble the activated B-cell-like (ABC) or non-germinal center subtype of nodal DLBCL...
December 20, 2017: Blood Reviews
https://www.readbyqxmd.com/read/29279354/germinal-centers-determine-the-prognostic-relevance-of-tertiary-lymphoid-structures-and-are-impaired-by-corticosteroids-in-lung-squamous-cell-carcinoma
#2
Karina Silina, Alex Soltermann, Farkhondeh Movahedian Attar, Ruben Casanova, Zina M Uckeley, Helen Thut, Muriel Wandres, Sergejs Isajevs, Phil F Cheng, Alessandra Curioni Fontecedro, Periklis Foukas, Mitchell P Levesque, Holger Moch, Aija Linē, Maries van den Broek
In solid tumors, the presence of lymph node-like structures called tertiary lymphoid structures (TLS) is associated with improved patient survival. However, little is known about how TLS form in cancer, how their function affects survival, and whether they are affected by cancer therapy. In this study, we used multi-spectral microscopy, quantitative pathology and gene expression profiling to analyze TLS formation in human lung squamous cell carcinoma (LSCC) and in an experimental model of lung TLS induction...
December 26, 2017: Cancer Research
https://www.readbyqxmd.com/read/29274436/bacillus-spore-based-oral-carriers-loading-curcumin-for-the-therapy-of-colon-cancer
#3
Liang Yin, Zhan Meng, Yuxiao Zhang, Kaikai Hu, Wuya Chen, Kaibin Han, Bao-Yan Wu, Rong You, Chu-Hua Li, Ying Jin, Yan-Qing Guan
Oral drug delivery has attracted substantial attention due to its advantages over other administration routes. Bacillus spores, as oral probiotic agents, are applied widely. In this paper, a novel Bacillus spore-based oral colon targeted carrier loading curcumin was developed for colon cancer treatment. Curcumin was linked covalently with the outer coat of Bacillus spore and folate, respectively (SPORE-CUR-FA). Bacillus spores are capable of delivering drugs to the colon area through gastric barrier, taking the advantage of its tolerance to the harsh conditions and disintegration of the outer coat of spores after germination in the colon...
December 20, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29261756/rb1-gene-mutations-in-argentine-retinoblastoma-patients-implications-for-genetic-counseling
#4
Diana Parma, Marcela Ferrer, Leonela Luce, Florencia Giliberto, Irene Szijan
Retinoblastoma (RB) is an inherited childhood ocular cancer caused by mutations in the tumor suppressor RB1 gene. Identification of RB1 mutations is essential to assess the risk of developing retinoblastoma in the patients´ relatives. Retinoblastoma is a potentially curable cancer and an early diagnosis is critical for survival and eye preservation. Unilateral retinoblastoma is mostly non-heritable and results from two somatic mutations whereas bilateral retinoblastoma is heritable and results from one germline and one somatic mutation, both have high penetrance, 90%...
2017: PloS One
https://www.readbyqxmd.com/read/29246182/expression-and-clinical-value-of-programmed-cell-death-ligand-1-pd-l1-in-diffuse-large-b-cell-lymphoma-a-retrospective-study
#5
Li-Yang Hu, Xiao-Lu Xu, Hui-Lan Rao, Jie Chen, Ren-Chun Lai, Hui-Qiang Huang, Wen-Qi Jiang, Tong-Yu Lin, Zhong-Jun Xia, Qing-Qing Cai
BACKGROUND: The programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) pathway inhibits the activation of T cells and plays a crucial role in the negative regulation of cellular and humoral immune responses. Diffuse large B-cell lymphoma (DLBCL) is the most common lymphoid malignancy in adults. In the present study, we aimed to detect the expression of PD-L1 in DLBCL and to analyze its relationship with prognosis. METHODS: We reviewed medical records of 204 newly diagnosed DLBCL patients in Sun Yat-sen University Cancer Center between October 2005 and August 2012...
December 16, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/29241019/quantitative-analysis-of-a-multiplexed-immunofluorescence-panel-in-t-cell-lymphoma
#6
Siok-Bian Ng, Shuangyi Fan, Shoa-Nian Choo, Michal Hoppe, Hoang Mai Phuong, Sanjay De Mel, Anand D Jeyasekharan
Immunohistochemistry (IHC) provides clinically useful information on protein expression in cancer cells. However, quantification of colocalizing signals using conventional IHC and visual scores is challenging. Here we describe the application of quantitative immunofluorescence in angioimmunoblastic T-cell lymphoma (AITL), a peripheral T-cell lymphoma characterized by cellular heterogeneity that impedes IHC interpretation and quantification. A multiplexed immunofluorescence (IF) panel comprising T- and B-lymphocyte markers along with T-follicular helper (TFH) markers was validated for appropriate cellular localization in sections of benign tonsillar tissue and tested in two samples of AITL, using a Vectra microscope for spectral imaging and InForm software for analysis...
December 1, 2017: SLAS Technology
https://www.readbyqxmd.com/read/29226652/a-pooled-analysis-of-the-clinical-utilities-of-long-non-coding-rna-based-molecular-signature-for-diffuse-large-b-cell-lymphoma
#7
Pei Xu, Xiaoli Chen, Panke Su
BACKGROUND: Long non-coding RNAs (lncRNAs) have been highlighted as promising biomarkers for several types of malignancies. The current meta-analysis sought to investigate the clinical value of lncRNA-based molecular signatures as biomarkers for diagnosis, subtype classification, and prognosis in diffuse large B cell lymphoma (DLBCL). METHODS: A systematic search of the online databases was carried out and data were retrieved by pairs of independent reviewers. Effect sizes of the diagnostic parameters were combined using a quantitative meta-analysis...
November 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29206151/an-overview-of-l-amino-acid-oxidase-functions-from-bacteria-to-mammals-focus-on-the-immunoregulatory-phenylalanine-oxidase-il4i1
#8
REVIEW
Flavia Castellano, Valérie Molinier-Frenkel
l-amino acid oxidases are flavin adenine dinucleotide-dependent enzymes present in all major kingdom of life, from bacteria to mammals. They participate in defense mechanisms by limiting the growth of most bacteria and parasites. A few mammalian LAAOs have been described, of which the enzyme "interleukin-4 induced gene 1" (IL4I1) is the best characterized. IL4I1 mainly oxidizes l-phenylalanine. It is a secreted enzyme physiologically produced by antigen presenting cells of the myeloid and B cell lineages and T helper type (Th) 17 cells...
December 5, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29177878/anterior-mediastinal-lymph-nodes-in-chemically-induced-breast-cancer
#9
O V Kazakov, A V Kabakov, A F Poveshchenko, T V Raiter, D N Strunkin, I Yu Ishchenko, A P Lykov, S V Michurina, V I Konenkov
The anterior mediastinal lymph nodes were analyzed morphometrically in rats with chemically provoked breast cancer. Rats with untreated breast cancer and animals receiving chemotherapy demonstrated decreased volumes of paracortical region and lymphoid nodules with the germinal centers accompanied by extended medullary thymic substance. Resection of largest focus of breast tumor improved the filtration barrier potential of anterior mediastinal lymph nodes, up-regulated the proliferative activity of lymphoid cells in T-cell zones, and down-regulated proliferation of plasmatic cells...
December 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29163507/impact-of-chronic-viral-infection-on-t-cell-dependent-humoral-immune-response
#10
REVIEW
Stéphane Rodriguez, Mikaël Roussel, Karin Tarte, Patricia Amé-Thomas
During the last decades, considerable efforts have been done to decipher mechanisms supported by microorganisms or viruses involved in the development, differentiation, and function of immune cells. Pathogens and their associated secretome as well as the continuous inflammation observed in chronic infection are shaping both innate and adaptive immunity. Secondary lymphoid organs are functional structures ensuring the mounting of adaptive immune response against microorganisms and viruses. Inside these organs, germinal centers (GCs) are the specialized sites where mature B-cell differentiation occurs leading to the release of high-affinity immunoglobulin (Ig)-secreting cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29152550/tertiary-lymphoid-structures-associate-with-tumour-stage-in-urothelial-bladder-cancer
#11
Madhuri Koti, Amanda Shou Xu, Kevin Yi Mi Ren, Kash Visram, Runhan Ren, David M Berman, D Robert Siemens
Background: Urothelial bladder cancer (UBC) is a highly prevalent disease in North America, however its optimal management remains elusive. The contribution of B cell associated responses is poorly understood in bladder cancer. Lymphoid neogenesis is a hallmark of an active immune response at tumor sites that sometimes leads to formation of tertiary lymphoid structures (TLS) that resemble germinal centers formed in secondary lymphoid organs. Objective: This study was conducted with an aim to investigate the presence and characteristics of TLS in UBC with a focus to compare and contrast the TLS formation in treatment naive low grade non-muscle invasive (NMIBC) and muscle invasive bladder cancers (MIBC)...
October 27, 2017: Bladder Cancer
https://www.readbyqxmd.com/read/29140829/guiding-regulatory-t-cells-to-the-allograft
#12
Caroline Lamarche, Megan K Levings
PURPOSE OF REVIEW: The application of regulatory T cell (Treg) therapy in organ transplantation is actively being pursued using unmodified, typically polyclonal cells. As the results of these ongoing clinical trials emerge, it is time to plan the next wave of clinical trials of Tregs. Here we will review a key strategy to improve Treg effectiveness and reduce side effects, namely increasing Treg specificity - both in terms of antigen recognition and localization to the allograft. RECENT FINDINGS: Study of chemokine signatures accompanying acute rejection has revealed several chemokines that could be targeted to increase Treg homing...
November 14, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/29137822/dnmt1-is-associated-with-cell-cycle-and-dna-replication-gene-sets-in-diffuse-large-b-cell-lymphoma
#13
Suet Kee Loo, Suzina Sheikh Ab Hamid, Mustaffa Musa, Kah Keng Wong
Dysregulation of DNA (cytosine-5)-methyltransferase 1 (DNMT1) is associated with the pathogenesis of various types of cancer. It has been previously shown that DNMT1 is frequently expressed in diffuse large B-cell lymphoma (DLBCL), however its functions remain to be elucidated in the disease. In this study, we gene expression profiled (GEP) shRNA targeting DNMT1(shDNMT1)-treated germinal center B-cell-like DLBCL (GCB-DLBCL)-derived cell line (i.e. HT) compared with non-silencing shRNA (control shRNA)-treated HT cells...
October 9, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29136676/papillary-thyroid-cancer-and-coexisting-autoimmune-thyroiditis
#14
Franziska Veit, Dieter Graf, Saskia Momberger, Brigitte Helmich-Kapp, Ilka Ruschenburg, Anja Peters, Jochen Kussmann, Wolfgang Saeger, Kurt Werner Schmidt, Martin Toetsch, Kai Nestler, Klaus Mann
Histological findings often display an association between papillary thyroid carcinomas (PTC) and autoimmune thyroiditis (AIT) and so differ significantly from follicular thyroid carcinomas (FTC). The aim of this interdisciplinary, retrospective study was to evaluate the association of AIT in patients with PTC and FTC and a control group of benign nodular goiters. One hundred thyroidectomies with histologically confirmed differentiated thyroid carcinomas, 67 with PTC and 33 with FTC, were submitted for examination...
November 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/29119505/parameters-estimation-in-phase-space-landscape-reconstruction-of-cell-fate-a-systems-biology-approach
#15
Sheyla Montero, Reynaldo Martin, Ricardo Mansilla, Germinal Cocho, José Manuel Nieto-Villar
The thermodynamical formalism of irreversible processes offers a theoretical framework appropriate to explain the complexity observed at the macroscopic level of dynamic systems. In this context, together with the theory of complex systems and systems biology, the thermodynamical formalism establishes an appropriate conceptual framework to address the study of biological systems, in particular cancer.The Chapter is organized as follows: In Subheading 1, an integrative view of these disciplines is offered, for the characterization of the emergence and evolution of cancer, seen as a self-organized dynamic system far from the thermodynamic equilibrium...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29118741/analysis-of-the-germination-of-individual-clostridium-sporogenes-spores-with-and-without-germinant-receptors-and-cortex-lytic-enzymes
#16
Shiwei Wang, Jason Brunt, Michael W Peck, Peter Setlow, Yong-Qing Li
The Gram-positive spore-forming anaerobe Clostridium sporogenes is a significant cause of food spoilage, and it is also used as a surrogate for C. botulinum spores for testing the efficacy of commercial sterilization. C. sporogenes spores have also been proposed as a vector to deliver drugs to tumor cells for cancer treatments. Such an application of C. sporogenes spores requires their germination and return to life. In this study, Raman spectroscopy and differential interference contrast (DIC) microscopy were used to analyze the germination kinetics of multiple individual C...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29100733/synthesis-antifungal-and-antitumor-activity-of-two-new-types-of-imidazolin-2-ones
#17
Shaopeng Wei, Li Li, Yaping Shu, Kun Zhao, Zhiqin Ji
Thirty-six imidazolin-2-ones, including ten pairs of benzimidazolones and sixteen imidazopyridines, were synthesized and subjected for the evaluation of antifungal and antitumor activity. Compounds 4a-01, 6-01, 6-04 and 6-06 could effectively inhibit the spore germination and mycelium growth of Botrytis cinerea. The relationship between structure and antifungal activity revealed that the introducing short-chain aliphatic acyl groups at the moiety of imidazopyridines is favorable for the antifungal activity, whereas aromatic acyl groups are much better than aliphatic acyl groups for the activity of benzimidazolones except for acetyl...
October 21, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29074044/dnmt1-is-predictive-of-survival-and-associated-with-ki-67-expression-in-r-chop-treated-diffuse-large-b-cell-lymphomas
#18
Suet Kee Loo, Ewe Seng Ch'ng, Charles H Lawrie, María Arestin Muruzabal, Ayman Gaafar, María Puente Pomposo, Azlan Husin, Md Salzihan Md Salleh, Alison H Banham, Lars M Pedersen, Michael B Møller, Tina M Green, Kah Keng Wong
DNMT1 is a target of approved anti-cancer drugs including decitabine. However, the prognostic value of DNMT1 protein expression in R-CHOP-treated diffuse large B-cell lymphomas (DLBCLs) remains unexplored. Here we showed that DNMT1 was expressed in the majority of DLBCL cases (n = 209/230, 90.9%) with higher expression in germinal centre B-cell-like (GCB)-DLBCL subtype. Low and negative DNMT1 expression (20% cut-off, n = 33/230, 14.3%) was predictive of worse overall survival (OS; p < 0.001) and progression-free survival (PFS; p < 0...
October 23, 2017: Pathology
https://www.readbyqxmd.com/read/29037738/peptides-derived-from-in-vitro-gastrointestinal-digestion-of-germinated-soybean-proteins-inhibit-human-colon-cancer-cells-proliferation-and-inflammation
#19
Marcela González-Montoya, Blanca Hernández-Ledesma, Jose Manuel Silván, Rosalva Mora-Escobedo, Cristina Martínez-Villaluenga
The aim was to investigate the potential of germinated soybean proteins asa source of peptides with anticancer and anti-inflammatory activities produced after simulated gastrointestinal digestion. Protein concentrate from germinated soybean was hydrolysed with pepsin/pancreatin and fractionated by ultrafiltration. Whole digest and fractions>10, 5-10, and<5kDa caused cytotoxicity to Caco-2, HT-29, HCT-116 human colon cancer cells, and reduced inflammatory response caused by lipopolysaccharide in macrophages RAW 264...
March 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28942695/ovarian-stimulation-under-the-effect-of-isotretinoin
#20
Mauro Cozzolino, Javier Domingo, Sérgio Reis Soares
Isotretinoin (13-cis-retinoic acid) is a pharmaceutical vitamin A analog that is frequently used in the treatment of severe cystic acne, many women at reproductive age being exposed to this substance. This drug has a clearly documented teratogenicity and data from rodents and humans indicate that a direct aggression to ovarian follicles also occurs. Here we report the case of a 29-year-old woman with breast cancer referred for emergency preservation of reproductive potential that used isotretinoin up to the day before the initiation of ovarian stimulation...
September 23, 2017: Gynecological Endocrinology
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