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https://www.readbyqxmd.com/read/27915968/peripheral-t-cell-lymphoma-a-posttransplant-lymphoproliferative-disorder-presenting-as-a-jejunal-mass-in-a-renal-transplant-recipient
#1
Aanchal Kakkar, Immanuel Pradeep, Geetika Singh, Amit Dinda, Sanjay K Agarwal
Posttransplant lymphoproliferative disorders are a spectrum of lymphoproliferative disorders seen in recipients of solid-organ, bone marrow, and stem cell allografts. They include polyclonal early lesions mimicking infectious mononucleosis and monoclonal proliferations of B and T cells, indistinguishable from lymphomas occurring in immunocompetent individuals. Although most posttransplant lymphoproliferative disorders are B-cell neoplasms, T-cell posttransplant lymphoproliferative disorders are very rare. Among solid-organ transplants, renal allografts have low risk for development of posttransplant lymphoproliferative disorders...
December 2, 2016: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/27910767/immunostimulatory-effects-of-melphalan-and-usefulness-in-adoptive-cell-therapy-with-antitumor-cd4-t-cells
#2
Michal Kuczma, Zhi-Chun Ding, Gang Zhou
The alkylating agent melphalan is used in the treatment of hematological malignancies, especially multiple myeloma. In the past, the usefulness of melphalan has been solely attributed to its cytotoxicity on fastgrowing cancerous cells. Although the immunomodulatory effects of melphalan were suggested many years ago, only recently has this aspect of melphalan's activity begun to be elucidated at the molecular level. Emerging evidence indicates that melphalan can foster an immunogenic microenvironment by inducing immunogenic cell death (ICD) as characterized by membrane translocation of endoplasmic reticulum protein calreticulin (CRT) and by release of chromatin-binding protein high-mobility group box 1 (HMGB1)...
2016: Critical Reviews in Immunology
https://www.readbyqxmd.com/read/27904036/differential-regulation-of-lympho-myelopoiesis-by-stromal-cells-in-the-early-and-late-phases-in-balb-c-mice-repeatedly-exposed-to-lipopolysaccharide
#3
Isao Tsuboi, Tomonori Harada, Yoko Hirabayashi, Jun Kanno, Shin Aizawa
Chronic lipopolysaccharide (LPS) exposure to mice reduces the lymphoid compartment and skews the hematopoietic cell compartment toward myeloid-cells, which is considered to be a direct effect of LPS on hematopoietic stem cells. However, the effect of chronic LPS exposure on stromal-cells, which compose the hematopoietic microenvironment, has not been elucidated. Here, we investigated early- and late-phase effects of repeated LPS exposure on stromal-cells. During the early phase, when mice were treated with 5 or 25 µg LPS three times at weekly intervals, the numbers of myeloid-progenitor (colony forming unit-granulocyte macrophage (CFU-GM)) cells and B lymphoid-progenitor (CFU-preB) cells in the bone-marrow (BM) rapidly decreased after each treatment...
2016: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27881874/acute-myeloid-leukemia-derived-from-lympho-myeloid-clonal-hematopoiesis
#4
F Thol, S Klesse, L Köhler, R Gabdoulline, A Kloos, A Liebich, M Wichman, A Chaturvedi, J Fabisch, V I Gaidzik, P Paschka, L Bullinger, G Bug, H Serve, G Göhring, B Schlegelberger, M Lübbert, H Kirchner, M Wattad, D Kraemer, B Hertenstein, G Heil, W Fiedler, J Krauter, R Schlenk, K Döhner, H Döhner, A Ganser, M Heuser
We studied acute myeloid leukemia (AML) patients with lympho-myeloid clonal hematopoiesis (LM-CH), defined by the presence of DNA methyltransferase 3A (DNMT3A) mutations in both the myeloid and lymphoid T-cell compartment. Diagnostic, CR and relapse samples were sequenced for 34 leukemia-related genes in 171 DNMT3A mutated adult AML patients. AML with LM-CH was found in 40 patients (23%) and was associated with clonal haematopoiesis of indeterminate potential (CHIP) years prior to AML, older age, secondary AML, and more frequent MDS-type co-mutations (TET2, RUNX1 and EZH2)...
November 24, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27872531/positive-peritoneal-lavage-cytology-implications-for-staging-and-management-of-gastric-cancer
#5
Suman B Koganti, Satish Boddepalli, Muralidhar Nambada, Venu Madhav Thumma, Bheerappa Nagari, R A Sastry
The survival rates of gastric cancer patients with cytology-positive peritoneal lavage fluid without macroscopic dissemination (CY+/P-) is the same as that of patients with overt peritoneal metastasis.The 5-year survival rate of such patients is only 2%. The current study aims to highlight its significance in the staging of gastrointestinal malignancies and its implications for patient care. Prospective nonrandom analysis of peritoneal wash cytology in patients with gastrointestinal malignancies was conducted in the department of Surgical Gastroenterology, Nizams Institute of Medical Sciences, Hyderabad from January 2012 to June 2013...
December 2016: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27865858/biodistribution-of-radiolabeled-polyglutamic-acid-and-peg-polyglutamic-acid-nanocapsules
#6
Raquel Abellan-Pose, Maria Rodríguez-Évora, Sara Vicente, Noemi Csaba, Carmen Évora, Maria Jose Alonso, Araceli Delgado
Recently we reported the development of 100nm polyglutamic acid (PGA)-based nanocapsules, which were intended to carry anticancer drugs to the lymphatic system (Abellan-Pose et al., 2016). In this work, the objective was to further assess the potential "lympho-targeting" properties of radiolabeled (111)In-PGA and (111)In-PGA-PEG, following intravenous or subcutaneous administration. The results indicate that, following intravenous administration, both types of nanocapsules exhibit a modest accumulation in the lymph nodes (⩽2...
November 17, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27797436/radio-guided-sentinel-lymph-node-detection-and-lymph-node-mapping-in-invasive-urinary-bladder-cancer-a-prospective-clinical-study
#7
F Aljabery, I Shabo, Hans Olson, Oliver Gimm, Staffan Jahnson
OBJECTIVES: We investigated the possibility to detect sentinel nodes in patients with urinary bladder cancer (UBC) intra-operatively and whether the histopathological status of the identified sentinel nodes reflected that of the lymphatic field. PATIENTS AND METHODS: We studied 103 patients with UBC pathological stage T1-T4 who were treated with cystectomy and pelvic lymph node (LN) dissection during 2005-2011 at the Department of Urology, Linköping University Hospital...
October 31, 2016: BJU International
https://www.readbyqxmd.com/read/27769847/incomplete-klk7-secretion-and-upregulated-lekti-expression-underlie-hyperkeratotic-stratum-corneum-in-atopic-dermatitis
#8
Satomi Igawa, Mari Kishibe, Masako Minami-Hori, Masaru Honma, Hisashi Tsujimura, Junko Ishikawa, Tsutomu Fujimura, Masamoto Murakami, Akemi Ishida-Yamamoto
Atopic dermatitis (AD) is a common inflammatory skin disorder. Chronic AD lesions present hyperkeratosis, indicating a disturbed desquamation process. Kallikrein-related peptidase (KLK) 7 is a serine protease involved in the proteolysis of extracellular corneodesmosome (CD) components, including desmocollin1 and corneodesmosin (Cdsn), which leads to desquamation. KLK7 is secreted by lamellar granules, and upregulated in AD lesional skin. However, despite increased KLK7 protein levels, immunostaining and electron microscopy indicated numerous CDs remaining in the uppermost layer of the stratum corneum (SC) from AD lesions...
October 18, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27760608/-clinicopathologic-characteristics-and-prognosis-of-upper-tract-urothelial-carcinoma-an-analysis-of-368-radical-nephroureterectomy-specimens
#9
Y Wang, H Y He
Objective: To evaluate the epidemiology, clinicopathological features and prognosis in upper tract urothelial carcinoma (UTUC) patients. Methods: All archival 368 UTUC cases that underwent radical nephroureterectomy between September 1999 and October 2014 were reviewed, and their clinicopathological features were analyzed. Follow-up time was 1-216 months, with a mean follow-up of 41 month. Results: One hundred and twenty-eight male and 240 female patients were included, with a mean age of 68 years ranging from 31 to 88 years...
October 8, 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/27749916/antiviral-treatment-of-hcv-infected-patients-with-b-cell-non-hodgkin-lymphoma-anrs-hc-13-lympho-c-study
#10
Laurent Alric, Caroline Besson, Nathanael Lapidus, Juliette Jeannel, Jean-Marie Michot, Patrice Cacoub, Danielle Canioni, Stanislas Pol, Frédéric Davi, Pascaline Rabiega, Loic Ysebaert, Delphine Bonnet, Olivier Hermine
: Hepatitis C virus (HCV) infection is associated with lymphoproliferative disorders and B-cell non-Hodgkin lymphomas (B-NHLs). Evaluation of the efficacy and safety profiles of different antiviral therapies in HCV patients with B-NHL is warranted. METHODS: First, we evaluated the sustained virologic response (SVR) and safety of Peg-interferon-alpha (Peg-IFN) + ribavirin +/- first protease inhibitors (PI1s) therapy in 61 HCV patients with B-NHL enrolled in a nationwide observational survey compared with 94 matched HCV-infected controls without B-NHL...
2016: PloS One
https://www.readbyqxmd.com/read/27748277/determinants-of-lymph-node-status-in-women-with-breast-cancer-a-hospital-based-study-from-eastern-india
#11
Abhijit Chakraborty, Chinmoy Kumar Bose, Jayasri Basak, Aditya Narayan Sen, Raghwendra Mishra, Ashis Mukhopadhyay
BACKGROUND & OBJECTIVES: Number of metastatic lymph nodes has a strong prognostic value in the course of breast cancer treatment, morbidity and mortality. This study was undertaken to determine the association between axillary lymph node metastasis and several variables such as age, tumour size, grade, lymphovascular invasion, oestrogen and progesterone receptor expression and HER2/neu status in patients with breast cancer. METHODS: In this study 426 (with complete information on study variables) patients with breast cancer on treatment during March 2010 to December 2013, were analyzed...
May 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/27710911/mechanistic-insight-from-murine-models-of-netherton-syndrome
#12
Zela Keuylian, Alain Hovnanian
Protease regulation plays a crucial role in skin homeostasis and inflammation as revealed by the identification of loss-of-function mutations in SPINK5 (serine protease inhibitor of Kazal type 5) in Netherton sydrome (NS). SPINK5 encodes LEKTI (lympho-epithelial Kazal type related inhibitor), a multi-domain serine protease inhibitor expressed in all stratified epithelia. Our laboratory has developed a number of murine models which have been instrumental to dissecting the pathogenesis of NS. This mini-review discusses the major findings of these models and emphasizes the role of protease regulation, especially Kallikrein related peptidases in NS...
October 6, 2016: Biological Chemistry
https://www.readbyqxmd.com/read/27695000/initial-seeding-of-the-embryonic-thymus-by-immune-restricted-lympho-myeloid-progenitors
#13
Tiago C Luis, Sidinh Luc, Takuo Mizukami, Hanane Boukarabila, Supat Thongjuea, Petter S Woll, Emanuele Azzoni, Alice Giustacchini, Michael Lutteropp, Tiphaine Bouriez-Jones, Harsh Vaidya, Adam J Mead, Deborah Atkinson, Charlotta Böiers, Joana Carrelha, Iain C Macaulay, Roger Patient, Frederic Geissmann, Claus Nerlov, Rickard Sandberg, Marella F T R de Bruijn, C Clare Blackburn, Isabelle Godin, Sten Eirik W Jacobsen
The final stages of restriction to the T cell lineage occur in the thymus after the entry of thymus-seeding progenitors (TSPs). The identity and lineage potential of TSPs remains unclear. Because the first embryonic TSPs enter a non-vascularized thymic rudiment, we were able to directly image and establish the functional and molecular properties of embryonic thymopoiesis-initiating progenitors (T-IPs) before their entry into the thymus and activation of Notch signaling. T-IPs did not include multipotent stem cells or molecular evidence of T cell-restricted progenitors...
December 2016: Nature Immunology
https://www.readbyqxmd.com/read/27623433/the-influence-of-protein-malnutrition-on-biological-and-immunomodulatory-aspects-of-bone-marrow-mesenchymal-stem-cells
#14
Guilherme Galvão Dos Santos, Shafqat Batool, Araceli Hastreiter, Talita Sartori, Amanda Nogueira-Pedro, Primavera Borelli, Ricardo Ambrosio Fock
Tissues that require a great supply of nutrients and possess high metabolic demands, such as lympho-hemopoietics tissues, are the first to be affected by protein malnutrition (PM). Thus, PM directly affects hemopoiesis and the production and function of immune cells. Consequently, malnourished individuals are more susceptible to infections. Mesenchymal stem cells (MSCs) have immunomodulatory properties and are important in the formation of lympho-hemopoietic stroma. Since an adequate supply of nutrients is essential to sustain stroma formation, which is mainly constituted of MSCs and differentiated cells originated from them, this study investigated whether PM would influence some biological and immunomodulatory aspects of MSCs...
August 13, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27608759/lymphatics-in-neurological-disorders-a-neuro-lympho-vascular-component-of-multiple-sclerosis-and-alzheimer-s-disease
#15
REVIEW
Antoine Louveau, Sandro Da Mesquita, Jonathan Kipnis
Lymphatic vasculature drains interstitial fluids, which contain the tissue's waste products, and ensures immune surveillance of the tissues, allowing immune cell recirculation. Until recently, the CNS was considered to be devoid of a conventional lymphatic vasculature. The recent discovery in the meninges of a lymphatic network that drains the CNS calls into question classic models for the drainage of macromolecules and immune cells from the CNS. In the context of neurological disorders, the presence of a lymphatic system draining the CNS potentially offers a new player and a new avenue for therapy...
September 7, 2016: Neuron
https://www.readbyqxmd.com/read/27562580/de%C3%A2-novo-formation-of-cerebral-cavernous-malformation-adjacent-to-existing-developmental-venous-anomaly-an-effect-of-change-in-venous-pressure-associated-with-management-of-a-complex-dural-arterio-venous-fistula
#16
Hariprakash Chakravarthy, Tzu-Kang Lin, Yao-Liang Chen, Yi-Ming Wu, Chin-Hua Yeh, Ho-Fai Wong
This is a case report of de novo development of two cerebral cavernous malformations adjacent to existing developmental venous anomalies. The development of cavernomas was noted over a follow-up period of 10 years. These developments happened during the course of staged endovascular management of a complex dural arterio-venous fistula along the right sphenoid wing. The patient presented with a proptosis secondary to lympho-haemangiomatous lesion of the fronto-orbital region and a high-flow right sphenoid wing dural arterio-venous fistula...
December 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27548434/foxn1-regulates-key-target-genes-essential-for-t-cell-development-in-postnatal-thymic-epithelial-cells
#17
Saulius Žuklys, Adam Handel, Saule Zhanybekova, Fatima Govani, Marcel Keller, Stefano Maio, Carlos E Mayer, Hong Ying Teh, Katrin Hafen, Giuseppe Gallone, Thomas Barthlott, Chris P Ponting, Georg A Holländer
Thymic epithelial cell differentiation, growth and function depend on the expression of the transcription factor Foxn1; however, its target genes have never been physically identified. Using static and inducible genetic model systems and chromatin studies, we developed a genome-wide map of direct Foxn1 target genes for postnatal thymic epithelia and defined the Foxn1 binding motif. We determined the function of Foxn1 in these cells and found that, in addition to the transcriptional control of genes involved in the attraction and lineage commitment of T cell precursors, Foxn1 regulates the expression of genes involved in antigen processing and thymocyte selection...
October 2016: Nature Immunology
https://www.readbyqxmd.com/read/27516121/prognostic-factors-of-overall-survival-in-upper-urinary-tract-carcinoma-a-systematic-review-and-meta-analysis
#18
Fausto Petrelli, Mohamed Ismail Yasser Hussein, Ivano Vavassori, Sandro Barni
Several prognostic factors that influence overall survival after radical nephroureterectomy for upper urinary tract urothelial carcinoma have been described. We have performed a systematic review of the literature and meta-analysis. The clinicopathological factors associated with an increased risk of death were age, multifocality, lymphovascular invasion, pT3-4 stage, pT2 vs <pT2 stage, node-positive disease, tumor grade, tumor size, and positive surgical margins. This meta-analysis of published data identified 9 significant predictors of mortality that should be systematically assessed to propose a risk-based strategy for the choice of adjuvant therapy and surveillance after radical nephroureterectomy...
August 8, 2016: Urology
https://www.readbyqxmd.com/read/27499994/a-30-year-old-female-beh%C3%A3-et-s-disease-patient-with-recurrent-pleural-and-pericardial-effusion-and-elevated-adenosine-deaminase-levels-case-report
#19
Joon Young Choi, Sung-Hwan Kim, Seung-Ki Kwok, Jung Im Jung, Kyo-Young Lee, Tae-Jung Kim, Ji Young Kang
Behçet's disease is a systemic disease which may involve various organs. We describe a case of a patient diagnosed as pleuropericardial involvement of Behçet's disease. A 30-year-old woman visited our clinic presented with left pleuritic chest pain for s days. She had been diagnosed as Behçet's disease and admitted to our clinic due to pericardial and pleural effusion repeatedly in past two years. In the previous studies, effusion analysis revealed to be lympho-dominant exudate with high adenosine deaminase level...
July 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27473738/serum-free-light-chain-assay-and-%C3%AE%C2%BA-%C3%AE-ratio-performance-in-patients-without-monoclonal-gammopathies-%C3%A2-high-false-positive-rate
#20
Gurmukh Singh
OBJECTIVES: Serum free light chain assay is a recommended screening test for monoclonal gammopathies. Anecdotal observations indicated a high rate of false-positive abnormal κ/λ ratios. This study was undertaken to ascertain the magnitude of the false-positive rate and factors contributing to the error rate. METHODS: Results of serum protein electrophoresis, serum free light chains, and related tests, usually done for investigation of suspected monoclonal gammopathy, were reviewed retrospectively for 270 patients and 297 observations...
August 2016: American Journal of Clinical Pathology
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