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https://www.readbyqxmd.com/read/28922466/blinatumomab-pharmacodynamics-and-exposure-response-relationships-in-relapsed-refractory-acute-lymphoblastic-leukemia
#1
Min Zhu, Andrea Kratzer, Jessica Johnson, Chris Holland, Christian Brandl, Indrajeet Singh, Andreas Wolf, Sameer Doshi
We evaluated blinatumomab pharmacokinetics, pharmacodynamics (CD3+ T-cell, CD19+ B-cell, and cytokine levels), and their associations with efficacy or safety in relapsed/refractory acute lymphoblastic leukemia. Blinatumomab pharmacokinetics (continuous intravenous infusion) from a phase 2 study (n = 189; NCT01466179) were assessed noncompartmentally. Associations between steady-state concentration (Css ) and efficacy (complete remission [CR] or CR with partial hematologic recovery [CRh]) or safety (cytokine release syndrome [CRS] and neurologic events [NEs]) were evaluated with statistical models...
September 18, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28922261/the-effect-of-gluten-free-diet-on-clinical-symptoms-and-the-intestinal-mucosa-of-patients-with-potential-celiac-disease
#2
Roberta Mandile, Valentina Discepolo, Serena Scapaticci, Maria Rosaria Del Vecchio, Maria Antonia Maglio, Luigi Greco, Riccardo Troncone, Renata Auricchio
In this prospective study, we evaluated the effect of gluten free diet (GFD) in a cohort of 65 children with potential celiac disease (PCD). Patients received GFD for signs/symptoms (N = 47) or parents' choice (N = 18). Most frequent signs/symptoms were low Body Mass Index (BMI) (36%), recurrent abdominal pain (34%) and diarrhea (19%). Of the 35/47 patients followed-up on GFD, only 54% (19/35) showed a complete clinical response. In 9/65 patients an intestinal biopsy was also performed after at least one year of GFD...
September 16, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28919997/increased-infiltration-and-tolerised-antigen-specific-cd8-tem-cells-in-tumor-but-not-peripheral-blood-have-no-impact-on-survival-of-hcmv-glioblastoma-patients
#3
M Bahador, A Gras Navarro, M A Rahman, M Dominguez-Valentin, S Sarowar, E Ulvestad, G Njølstad, S A Lie, E K Kristoffersen, E Bratland, M Chekenya
Human cytomegalovirus (HCMV) antigens in glioblastoma (GBM) present opportunities for personalised immunotherapy. However, their presence in GBM tissue is still under debate, and evidence of their impact on functional immune responses and prognosis is sparse. Here, we investigated the presence of pp65 (UL83) and immediate early 1 (IE-1) HCMV antigens in a cohort of Norwegian GBM patients (n = 177), using qPCR, immunohistochemistry, and serology. HCMV status was then used to investigate whether viral antigens influenced immune cell phenotype, infiltration, activation and patient survival...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28918646/depletion-of-gut-resident-ccr5-cells-for-hiv-cure-strategies
#4
David Patrick Merriam, Connie Chen, Gema Mendez-Lagares, Kenneth Rogers, Anthony Michaels, Jiangli Yan, Paul Casaz, Keith Reimann, Francois Villenger, Dennis J Hartigan-O'Connor
The HIV reservoir forming at the earliest stages of infection is likely composed of CCR5+ cells, because these cells are the targets of transmissible virus. Restriction of the CCR5+ reservoir, particularly in gut, may be needed for subsequent cure attempts. Strategies for killing or depleting CCR5+ cells have been described, but none have been tested in vivo in non-human primates and the extent of achievable depletion from tissues is not known. Here we investigate the efficacy of two novel cytotoxic treatments for targeting and eliminating CCR5+ cells in young rhesus macaques...
September 17, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28917722/asthmatic-farm-children-show-increased-cd3-cd8low-t-cells-compared-to-non-asthmatic-farm-children
#5
Monika Twardziok, Paul C Schröder, Johanna Krusche, Vera I Casaca, Sabina Illi, Andreas Böck, Georg J Loss, Michael Kabesch, Antoaneta Toncheva, Caroline Roduit, Martin Depner, Jon Genuneit, Harald Renz, Marjut Roponen, Juliane Weber, Charlotte Braun-Fahrländer, Josef Riedler, Roger Lauener, Dominique Angèle Vuitton, Jean-Charles Dalphin, Juha Pekkanen, Erika von Mutius, Bianca Schaub, A Hyvärinen, A M Karvonen, P Kirjavainen, S Remes, V Kaulek, M L Dalphin, M Ege, P Pfefferle, G Doekes
No abstract text is available yet for this article.
September 13, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28915679/prognostic-role-of-tumor-infiltrating-lymphocytes-in-gastric-cancer-a-meta-analysis
#6
Xiao Zheng, Xing Song, Yingjie Shao, Bin Xu, Lujun Chen, Qi Zhou, Wenwei Hu, Dachuan Zhang, Changping Wu, Min Tao, Yibei Zhu, Jingting Jiang
BACKGROUND: In patients with gastric cancer, the prognostic value of tumor-infiltrating lymphocytes (TILs) is still controversial. A meta-analysis was performed to evaluate the prognostic value of TILs in gastric cancer. MATERIALS AND METHODS: We identify studies from PubMed, Embase and the Cochrane Library to assess the prognostic effect of TILs in patients with gastric cancer. Fixed-effects models or random-effects models were used estimate the pooled hazard ratios (HRs) for overall survival (OS) and disease-free survival (DFS), which depend on the heterogeneity...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28914619/there-are-no-magic-bullets-in-hematopathology-even-immunostains-for-cd20-and-cd3-can-get-you-into-trouble
#7
Judith A Ferry
Immunohistochemistry is a powerful tool for the diagnosis and subclassification of hematolymphoid neoplasms. However, the expression of certain markers is not always as expected, and unusual patterns of staining can lead to misdiagnosis. CD20 and CD3 are our most commonly used markers for identification of B cells and T cells, respectively, and they almost always yield reliable, specific staining. This discussion focuses on diagnostic pitfalls related to the use of immunohistochemistry for CD20 and CD3 in hematopathology, and specifically on diagnostic challenges that arise when (1) CD20 is not expressed in B-cell lymphomas, when (2) CD20 is expressed in plasma cell neoplasms and T-cell lymphomas, and when (3) CD3 is expressed in B-cell lymphomas and Hodgkin lymphoma...
September 13, 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28913973/bone-marrow-stem-cells-do-not-contribute-to-endometrial-cell-lineages-in-chimeric-mouse-models
#8
Yih Rue Ong, Fiona L Cousins, Xiaoqing Yang, Ahmed Aedh A Al Mushafi, David T Breault, Caroline E Gargett, James A Deane
Studies from five independent laboratories conclude that bone marrow stem cells transdifferentiate into endometrial stroma, epithelium and endothelium. We investigated the nature of bone marrow-derived cells in the mouse endometrium by reconstituting irradiated wild type recipients with bone marrow containing transgenic mTert-GFP or chicken β-actin-GFP reporters. mTert-GFP is a telomerase marker identifying hematopoietic stem cells and subpopulations of epithelial, endothelial and immune cells in the endometrium...
September 15, 2017: Stem Cells
https://www.readbyqxmd.com/read/28913874/an-algorithmic-approach-to-diagnose-haematolymphoid-neoplasms-in-effusion-by-combining-morphology-immunohistochemistry-and-molecular-cytogenetics
#9
L Chen, J S Zhang, D G Liu, D Cui, Z L Meng
OBJECTIVE: There are limited studies of cytology diagnosis of haematopoietic and lymphoid tumours in serosal effusion except for occasional case reports. We would like to demonstrate an algorithmic approach for accurate diagnosis, especially in patients without previous history. METHODS: We reviewed 36 cases of lymphoma diagnosed in serosal effusion following an algorithmic approach. Suspected tumour cells were classified into small, intermediate and large sizes and two characteristic forms of plasmacytoid and Reed Sternberg-like on smears (step 1), followed by utilising panels of immunohistochemical markers and Epstein-Barr encoding region in situ hybridisation on cell blocks (step 2)...
September 15, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28912855/effect-of-transoral-endoscopic-adenoidectomy-on-peripheral-blood-t-lymphocyte-subsets-in-children-with-obstructive-sleep-apnea-hypopnea-syndrome-and-its-treatment-strategy
#10
Na Yang, Yaofeng Ji, Yin Liu
The objective of the present study was to investigate the effect of transoral endoscopic adenoidectomy on peripheral blood T lymphocyte subsets in pediatric patients with obstructive sleep apnea-hypopnea syndrome (OSAHS) and its treatment strategy. Ninety-eight pediatric patients with adenoidal hypertrophy associated with OSAHS admitted to the Department of Otolaryngology, Xuzhou Children's Hospital were selected. After admission, patients received perfected 24 h polysomnogram monitoring, routine blood examination, fasting blood biochemistry examination, T-lymphocyte subset count, 24 h ambulatory blood pressure monitoring, and nasopharyngeal computed tomography...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28912588/lipopolysaccharide-initiated-persistent-rhinitis-causes-gliosis-and-synaptic-loss-in-the-olfactory-bulb
#11
Sanae Hasegawa-Ishii, Atsuyoshi Shimada, Fumiaki Imamura
The olfactory mucosa (OM) is exposed to environmental agents and therefore vulnerable to inflammation. To examine the effects of environmental toxin-initiated OM inflammation on the olfactory bulb (OB), we induced persistent rhinitis in mice and analyzed the spatial and temporal patterns of histopathological changes in the OM and OB. Mice received unilateral intranasal administration of lipopolysaccharide (LPS) or saline three times per week, and were immunohistologically analyzed at 1, 3, 7, 14 and 21 days after the first administration...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28912297/cyclin-d1-negative-mantle-cell-lymphoma-with-aberrant-cd3-expression
#12
Anita Malek, Govind Bhagat
No abstract text is available yet for this article.
September 14, 2017: Blood
https://www.readbyqxmd.com/read/28910869/-lymphomatoid-papulosis-a-clinicopathologic-analysis-and-whole-exome-sequencing
#13
T T Wang, Y Xie, L Li, L Wang
Objective: To study the clinicopathologic characteristics and immunophenotype of lymphomatoid papulosis(LyP), followed by exon mutation analysis with focus on gene mutations involved in apoptosis pathway and other possible pathogenic genes. Methods: Clinical data analysis and immunohistochemical staining were carried out in 20 cases of LyP. Whole exome sequencing technology was employed in 2 cases of type C of LyP. Results: Of the 20 cases, there were 9 males and 11 females with a median age of 28.6 years. Nineteen patients presented with multiple papules and nodules, and one case presented with only one tumor nodule...
September 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28910394/up-regulation-of-gap-junction-in-peripheral-blood-t-lymphocytes-contributes-to-the-inflammatory-response-in-essential-hypertension
#14
Xin Ni, Ai Wang, Liang Zhang, Li-Ya Shan, Hai-Chao Zhang, Li Li, Jun-Qiang Si, Jian Luo, Xin-Zhi Li, Ke-Tao Ma
Inflammation has been shown to play an important role in the mechanisms involved in the pathogenesis of hypertension. Connexins (Cxs)-based gap junction channels (GJCs) or hemichannels (HCs) are involved in the maintenance of homeostasis in the immune system. However, the role of Cx43-based channels in T-lymphocytes in mediating the immune response in essential hypertension is not fully understand. The present study was designed to investigate the role of Cxs-based channels in T lymphocytes in the regulation of hypertension-mediated inflammation...
2017: PloS One
https://www.readbyqxmd.com/read/28905952/detection-of-membrane-bound-and-soluble-antigens-by-magnetic-levitation
#15
Mikkel Schou Andersen, Emily Howard, Shulin Lu, Matthew Richard, Mark Gregory, Gordon Ogembo, Ofer Mazor, Pavel Gorelik, Nathan I Shapiro, Anish V Sharda, Ionita Ghiran
Magnetic levitation is a technique for measuring the density and the magnetic properties of objects suspended in a paramagnetic field. We describe a novel magnetic levitation-based method that can specifically detect cell membrane-bound and soluble antigens by measurable changes in levitation height that result from the formation of antibody-coated bead and antigen complex. We demonstrate our method's ability to sensitively detect an array of membrane-bound and soluble antigens found in blood, including T-cell antigen CD3, eosinophil antigen Siglec-8, red blood cell antigens CD35 and RhD, red blood cell-bound Epstein-Barr viral particles, and soluble IL-6, and validate the results by flow cytometry and immunofluorescence microscopy performed in parallel...
September 14, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28905075/ouabain-attenuates-ovalbumin-induced-airway-inflammation
#16
José Guilherme F M Galvão, Luiz Henrique Agra Cavalcante-Silva, Deyse Cristina M Carvalho, Laércia Karla D P Ferreira, Talissa Mozzini Monteiro, Adriano Francisco Alves, Larissa Adilis M P Ferreira, Francisco Allysson A F Gadelha, Marcia Regina Piuvezam, Sandra Rodrigues-Mascarenhas
PURPOSE: Ouabain, an Na(+)/K(+)-ATPase inhibitor hormone, presents immunomodulatory actions, including anti-inflammatory effect on acute inflammation models. METHODS: In the present study, the effect of ouabain in a model of allergic airway inflammation induced by ovalbumin (OVA) was assessed. RESULTS: Initially, it was observed that ouabain treatment inhibited cellular migration induced by OVA on bronchoalveolar lavage fluid (BALF), mostly granulocytes, without modulating macrophage migration...
September 13, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28904691/il-21-augments-rapamycin-in-expansion-of-alpha-fetoprotein-antigen-specific-stem-cell-like-memory-t-cells-in-vitro
#17
Victor Tunje Jeza, Xiaoyi Li, Jun Chen, Zhihui Liang, Adem Onago Aggrey, Xiongwen Wu
INTRODUCTION: Alloreactive tumor specific T cells are important arsenals of the adaptive immune system in the fight against tumors. However, stem cell-like memory T cells (Tscm) provide the key to effective elimination of tumor cells. Methods for generating these T cell subsets already exist. However, they could be made more efficient. Further, they are expensive and unattainable to the resource poor laboratories. In this regard, we are hereby describing a novel in vitro allogeneic co-culture method for raising allo-restricted tumor specific Tscm cells that we developed...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28903821/age-and-sex-associated-differences-in-phenotypic-and-functional-characteristics-of-peripheral-blood-lymphocytes-in-chimpanzees-pan-troglodytes
#18
Pramod N Nehete, Elizabeth R Magden, Bharti P Nehete, Lawrence E Williams, Christian R Abee, K Jagannadha Sastry
Chimpanzees are the closest phylogenetic relatives to humans, sharing more than 98% genetic sequence identity. These genetic similarities prompted the belief that chimpanzees can serve as an ideal model for human disease conditions and vaccine development. However, in light of the recent NIH decision to phase out biomedical research in chimpanzees and retire NIH-supported chimpanzees, data from the present study will continue to provide value for the care of aged and sick chimpanzees located in zoos, sanctuaries, and primate centers...
September 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28901184/ex-vivo-pretreatment-of-islets-with-mitomycin-c-reduction-in-immunogenic-potential-of-islets-by-suppressing-secretion-of-multiple-chemotactic-factors
#19
Naoya Sato, Junichiro Haga, Takayuki Anazawa, Akira Kenjo, Takashi Kimura, Ikuo Wada, Tsutomu Mori, Shigeru Marubashi, Mitsukazu Gotoh
Strategies to reduce the immunogenicity of pancreatic islets and to prevent the activation of proinflammatory events are essential for successful islet engraftment. Pretransplant islet culture presents an opportunity for preconditioning to improve outcomes of islet transplantation. We previously demonstrated that ex vivo mitomycin C (MMC) pretreatment and subsequent culture significantly prolonged graft survival. Fully understanding the biological process of pretreatment could result in the development of a protocol to improve the survival of islet grafts...
August 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28900479/loss-of-tff1-promotes-pro-inflammatory-phenotype-with-increase-in-the-levels-of-ror%C3%AE-t-t-lymphocytes-and-il-17-in-mouse-gastric-neoplasia
#20
Mohammed Soutto, Mohamed Saleh, Mohamed S Arredouani, Blanca Piazuelo, Abbes Belkhiri, Wael El-Rifai
Background: TFF1 deficiency induces a mucosal pro-inflammatory phenotype that contributes to gastric tumorigenesis in mouse and human. Methods: We utilized the Tff1-KO mouse model to assess the impact of TFF1 loss on immune cells infiltration in the stomach. We used single cell suspension, flow cytometry, immunohistochemistry, and quantitative PCR (qPCR) assays. Results: The Tff1-KO gastric mucosa demonstrated high chronic inflammatory scores (score: 3-4) at age 2 months, which exacerbated at age 8 months (score: 4-6)...
2017: Journal of Cancer
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