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https://www.readbyqxmd.com/read/28433861/c-reactive-protein-and-enzymatically-modified-ldl-cooperatively-promote-dendritic-cell-mediated-t-cell-activation
#1
Wei He, Yong Ren, Xiao Wang, Qiao Chen, Shifang Ding
BACKGROUND: Enzymatically modified low density lipoprotein (eLDL), C reactive protein (CRP), dendritic cells (DCs), and T cells were shown to be involved in the pathogenesis of atherosclerosis. This study aimed to investigate whether eLDL and CRP could cooperatively promote DC-mediated T cell activation and proliferation. METHOD: Low density lipoprotein was isolated from healthy human plasma and treated with proteases and cholesterol esterase. CD14(+) monocytes were isolated from human peripheral blood by gradient centrifugation and enriched with CD14 Microbeads, which were then induced with recombinant human IL-4 and granulocyte-macrophage colony-stimulating factor before treated with eLDL and/or CRP...
April 7, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28430315/adding-access-blood-flow-surveillance-reduces-thrombosis-and-improves-arteriovenous-fistula-patency-a-randomized-controlled-trial
#2
Inés Aragoncillo, Soraya Abad, Silvia Caldés, Yésika Amézquita, Almudena Vega, Antonio Cirugeda, Cristina Moratilla, José Ibeas, Ramón Roca-Tey, Cristina Fernández, Nicolás Macías, Borja Quiroga, Ana Blanco, Maite Villaverde, Caridad Ruiz, Belén Martín, Asunción M Ruiz, Jara Ampuero, Fernando de Alvaro, Juan M López-Gómez
PURPOSE: Stenosis is the main cause of arteriovenous fistula (AVF) failure. It is still unclear whether surveillance based on vascular access blood flow (QA) enhances AVF function and longevity. METHODS: We conducted a three-year follow-up randomized, controlled, multicenter, open-label trial to compare QA-based surveillance and pre-emptive repair of subclinical stenosis with standard monitoring/surveillance techniques in prevalent mature AVFs. AVFs were randomized to either the control group (surveillance based on classic alarm criteria; n = 104) or to the QA group (QA measured quarterly using Doppler ultrasound [M-Turbo®] and ultrasound dilution [Transonic®] added to classic surveillance; n = 103)...
April 20, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28427529/primary-central-nervous-system-lymphoma
#3
REVIEW
Giovanni Citterio, Michele Reni, Gemma Gatta, Andrés José Maria Ferreri
Primary CNS lymphomas (PCNSL) represent a subgroup of malignancies with specific characteristics, aggressive course, and unsatisfactory outcome in contrast with other lymphomas comparable for tumour burden and/or histological type. Despite a high chemo- and radiosensitivity, remissions are frequently shortlasting, mainly because the blood brain-barrier limits the access of many drugs to the CNS. Moreover, survivor patients are at high risk of developing severe treatment-related toxicity, mainly disabling neurotoxicity, raising the question of how to balance therapy intensification with side-effects control...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28426845/her2-specific-chimeric-antigen-receptor-modified-virus-specific-t-cells-for-progressive-glioblastoma-a-phase-1-dose-escalation-trial
#4
Nabil Ahmed, Vita Brawley, Meenakshi Hegde, Kevin Bielamowicz, Mamta Kalra, Daniel Landi, Catherine Robertson, Tara L Gray, Oumar Diouf, Amanda Wakefield, Alexia Ghazi, Claudia Gerken, Zhongzhen Yi, Aidin Ashoori, Meng-Fen Wu, Hao Liu, Cliona Rooney, Gianpietro Dotti, Adrian Gee, Jack Su, Yvonne Kew, David Baskin, Yi Jonathan Zhang, Pamela New, Bambi Grilley, Milica Stojakovic, John Hicks, Suzanne Z Powell, Malcolm K Brenner, Helen E Heslop, Robert Grossman, Winfried S Wels, Stephen Gottschalk
Importance: Glioblastoma is an incurable tumor, and the therapeutic options for patients are limited. Objective: To determine whether the systemic administration of HER2-specific chimeric antigen receptor (CAR)-modified virus-specific T cells (VSTs) is safe and whether these cells have antiglioblastoma activity. Design, Setting, and Participants: In this open-label phase 1 dose-escalation study conducted at Baylor College of Medicine, Houston Methodist Hospital, and Texas Children's Hospital, patients with progressive HER2-positive glioblastoma were enrolled between July 25, 2011, and April 21, 2014...
April 20, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28426803/dendritic-cell-maturation-but-not-type-i-interferon-exposure-restricts-infection-by-htlv-1-and-viral-transmission-to-t-cells
#5
Gergès Rizkallah, Sandrine Alais, Nicolas Futsch, Yuetsu Tanaka, Chloé Journo, Renaud Mahieux, Hélène Dutartre
Human T lymphotropic Virus type 1 (HTLV-1) is the etiological agent of Adult T cell Leukemia/Lymphoma (ATLL) and HTLV-1-Associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP). Both CD4+ T-cells and dendritic cells (DCs) infected with HTLV-1 are found in peripheral blood from HTLV-1 carriers. We previously demonstrated that monocyte-derived IL-4 DCs are more susceptible to HTLV-1 infection than autologous primary T-cells, suggesting that DC infection precedes T-cell infection. However, during blood transmission, breast-feeding or sexual transmission, HTLV-1 may encounter different DC subsets present in the blood, the intestinal or genital mucosa respectively...
April 20, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28423700/hla-class-i-loss-in-metachronous-metastases-prevents-continuous-t-cell-recognition-of-mutated-neoantigens-in-a-human-melanoma-model
#6
Barbara Schrörs, Silke Lübcke, Volker Lennerz, Martina Fatho, Anne Bicker, Catherine Wölfel, Patrick Derigs, Thomas Hankeln, Dirk Schadendorf, Annette Paschen, Thomas Wölfel
T lymphocytes against tumor-specific mutated neoantigens can induce tumor regression. Also, the size of the immunogenic cancer mutanome is supposed to correlate with the clinical efficacy of checkpoint inhibition. Herein, we studied the susceptibility of tumor cell lines from lymph node metastases occurring in a melanoma patient over several years towards blood-derived, neoantigen-specific CD8+ T cells. In contrast to a cell line established during early stage III disease, all cell lines generated at later time points from stage IV metastases exhibited partial or complete loss of HLA class I expression...
March 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422911/do-vented-chest-seals-differ-in-efficacy-an-experimental-evaluation-using-a-swine-hemopneumothorax-model
#7
Bijan S Kheirabadi, Irasema B Terrazas, Nahir Miranda, Spc Amber N Voelker, Francoise Arnaud, Harold G Klemcke, Frank F Butler, Michael A Dubick
OBJECTIVE: Hemopneumothorax (HPTX) is the second leading cause of potentially preventable death among combat casualties. We investigated the ability of five FDA-approved non-occlusive chest seals (CSs) to seal a bleeding chest wound and prevent tension HPTX in a swine model. METHODS: Following instrumentation, an open chest wound was created in the left thorax of spontaneously air-breathing anesthetized pigs (n=26, 43 Kg). Autologous fresh blood (226 mL) was then infused into the pleural cavity to produce HPTX...
April 18, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28422742/multi-omics-study-revealing-the-complexity-and-spatial-heterogeneity-of-tumor-infiltrating-lymphocytes-in-primary-liver-carcinoma
#8
Lijun Shi, Yang Zhang, Lin Feng, Liming Wang, Weiqi Rong, Fan Wu, Jianxiong Wu, Kaitai Zhang, Shujun Cheng
Intratumoral heterogeneity has been revealed in primary liver carcinoma (PLC). However, spatial heterogeneity of tumor-infiltrating lymphocytes (TILs), which reflects one dimension of a tumor's spatial heterogeneity, and the relationship between TIL diversity, local immune response and mutation burden remain unexplored in PLC. Therefore, we performed immune repertoire sequencing, gene expression profiling analysis and whole-exome sequencing in parallel on five regions of each tumor and on matched adjacent normal tissues and peripheral blood from five PLC patients...
March 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422403/blood-chimerism-in-dizygotic-monochorionic-twins-during-five-years-observation
#9
Morten Hanefeld Dziegiel, Morten Høgh Hansen, Sofie Haedersdal, Angela Natalie Barrett, Klaus Rieneck, Katharina Maria Main, Anne Todsen Hansen, Frederik Banch Clausen
Dizygotic monochorionic twin pregnancies can result in blood chimerism due to in utero twin-to-twin exchange of stem cells. In this case, we examined the proportion of allogeneic red blood cells (RBCs) by flow cytometry and the proportion of allogeneic nucleated cells by digital PCR at seven months and again at five years. We found an increase in the proportion of allogeneic cells from 63% to 89% in one twin, and a similar increase in autologous cells in the other twin from 57% to 84%. A paradigm for stem cell therapy could be modelled on this case: induction of tolerance and chimerism by antenatal transfusion of donor stem cells...
April 19, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28421915/use-of-a-modified-classic-bt-shunt-in-a-patient-with-multiple-conduit-obstructions-with-positive-lupus-anticoagulant
#10
Pallav Bhattarai, Ayesha Zia, Joseph M Forbess, Kristine J Guleserian, Susan R Hupp, Timothy Pirolli
The use of a right ventricle-to-pulmonary artery conduit has re-emerged as a popular alternative to a systemic artery-to-pulmonary artery shunt in the Norwood procedure. Both proximal obstruction secondary to dynamic compression and distal obstruction at the anastomosis site with the pulmonary arteries are well described. In an effort to prevent complications, a technique where in the conduit is placed through the entire full thickness, or dunked, through the RV free wall has been described. We report a case of a patient with HLHS and positive lupus anticoagulant who developed recurrent conduit obstructions...
January 1, 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28420440/immune-response-after-autologous-hematopoietic-stem-cell-transplantation-in-type-1-diabetes-mellitus
#11
Lei Ye, Li Li, Bing Wan, Minglan Yang, Jie Hong, Weiqiong Gu, Weiqing Wang, Guang Ning
BACKGROUND: This study explored the details of the immune response after autologous hematopoietic stem cell transplantation (AHSCT) treatment in type 1 diabetes mellitus. METHODS: Peripheral blood mononuclear cells (PBMCs) from 18 patients with type 1 diabetes mellitus were taken at baseline and 12 months after AHSCT or insulin-only therapy. The lymphocyte proliferation, mRNA expression and secretion of pro-inflammatory and anti-inflammatory cytokines belonging to T-helper type 1 (Th1), T-helper type 17 (Th17) and regulatory T (Treg) cells in PBMC culture supernatants were assessed...
April 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28416580/a-tspo-ligand-attenuates-brain-injury-after-intracerebral-hemorrhage
#12
Minshu Li, Honglei Ren, Kevin N Sheth, Fu-Dong Shi, Qiang Liu
Intracerebral hemorrhage (ICH) is a devastating disease without effective treatment. After ICH, the immediate infiltration of leukocytes and activation of microglia are accompanied by a rapid up-regulation of translocator protein 18 kDa (TSPO). TSPO ligands have shown anti-inflammatory and neuroprotective properties in models of CNS injury. In this study, we determined the impact of a TSPO ligand, etifoxine, on brain injury and inflammation in 2 mouse models of ICH. TSPO was up-regulated in Iba1(+) cells from brains of patients with ICH and in CD11b(+)CD45(int) cells from mice subjected to collagenase-induced ICH...
April 17, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28412245/cxcr5-cd8-t-cells-infiltrate-the-colorectal-tumors-and-nearby-lymph-nodes-and-are-associated-with-enhanced-igg-response-in-b-cells
#13
Junjie Xing, Chenxin Zhang, Xiaohong Yang, Shaoxuan Wang, Zhongchuan Wang, Xu Li, Enda Yu
Colorectal cancer is the third most prevalent cancer type worldwide and contributes to a significant percentage of cancer-related mortality. Recent studies have shown that the CXCR5(+)CD8(+) T cells present more potent proinflammatory function than CXCR5(-)CD8(+) T cells in chronic virus infections and in follicular lymphoma, but the role of CXCR5(+)CD8(+) T cells in colorectal cancer is yet unclear. In this study, we demonstrated that CXCR5(+)CD8(+) T cells were very rare in peripheral blood mononuclear cells from healthy and colorectal cancer individuals, but were significantly enriched in resected tumors and tumor-associated lymph nodes...
April 12, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28411174/evaluation-of-hematopoietic-stem-cell-mobilization-rates-with-early-plerixafor-administration-time-for-adult-stem-cell-transplantation
#14
Jessica T Stover, J Ryan Shaw, Maragatha Kuchibhatla, Mitchell E Horwitz, Ashley M Engemann
The addition of plerixafor to high-dose colony stimulating growth factor has been shown to improve stem cell mobilization rates in autologous transplant patients with multiple myeloma and non-Hodgkin's lymphoma. This study evaluates the change in administration time of plerixafor to determine if cell mobilization rates are similar between the FDA approved administration time of 11 hours prior to apheresis and an earlier administration time of 16 hours prior to apheresis. Medical records of patient ≥ 18 years of age undergoing autologous stem cell transplantation requiring the use of plerixafor after at least four days of G-CSF therapy to complete stem cell mobilization from 1 January 2010 through 30 September 2014 were retrospectively reviewed...
April 11, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28411044/a-short-report-on-the-effect-of-decreased-incubation-time-on-the-architectural-profile-of-autologous-conditioned-serum-acs
#15
Angelique Barreto
If present in high enough concentrations, IL-1-Ra has the potential to inhibit Interleukin-1, the chief offender that promotes the pro-inflammatory cascade causing pain, swelling and joint dysfunction associated with osteoarthritis (OA). IL-1-Ra and growth factor levels were quantified from whole blood in this retrospective chart review investigation (n=20) using Zero and 15min incubation times respectively. The hypothesis that this process can significantly (p<0.0001) increase levels of IL-1-Ra was confirmed...
April 11, 2017: Cytokine
https://www.readbyqxmd.com/read/28410303/personalized-therapy-tumor-antigen-discovery-for-adoptive-cellular-therapy
#16
Cassian Yee, Gregory A Lizee
Adoptive cell therapy using endogenous T cells involves the ex vivo isolation and expansion of antigen-specific T cells from the peripheral blood and is uniquely suited for validating and translating antigen discovery. Endogenous T-cell therapy does not require accessible tumor as a source of infiltrating T cells and is free of regulatory and logistical constraints associated with engineering T cells. Candidate epitope peptides identified through antigen discovery may be rapidly implemented as targets in clinical trials of endogenous T-cell therapy and even incorporated as an "ad hoc" approach to personalized treatment when autologous tumor is available...
March 2017: Cancer Journal
https://www.readbyqxmd.com/read/28405508/antigen-receptor-redirected-t-cells-derived-from-hematopoietic-precursor-cells-lack-expression-of-the-endogenous-tcr-cd3-receptor-and-exhibit-specific-antitumor-capacities
#17
Yasmine Van Caeneghem, Stijn De Munter, Paola Tieppo, Glenn Goetgeluk, Karin Weening, Greet Verstichel, Sarah Bonte, Tom Taghon, Georges Leclercq, Tessa Kerre, Reno Debets, David Vermijlen, Hinrich Abken, Bart Vandekerckhove
Recent clinical studies indicate that adoptive T-cell therapy and especially chimeric antigen receptor (CAR) T-cell therapy is a very potent and potentially curative treatment for B-lineage hematologic malignancies. Currently, autologous peripheral blood T cells are used for adoptive T-cell therapy. Adoptive T cells derived from healthy allogeneic donors may have several advantages; however, the expected occurrence of graft versus host disease (GvHD) as a consequence of the diverse allogeneic T-cell receptor (TCR) repertoire expressed by these cells compromises this approach...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28402341/a-novel-approach-to-bone-reconstruction-the-wafer-technique
#18
Mauro Merli, Marco Moscatelli, Giorgia Mariotti, Alessandro Motroni, Annalisa Mazzoni, Simona Mazzoni, Lorenzo Breschi, Michele Nieri
This study presents a novel technique based on guided bone regeneration and onlay grafts for three-dimensional bone augmentation. This two-stage technique uses an autogenous cortical bone plate and collagen membranes to form a barrier containing a mixture of deproteinized bovine bone matrix, autologous blood, and bone grafted from intraoral sites. Five patients were treated. At 6 months postsurgery, a mean increase in bone volume of 1,062 mm³ was shown. Mean maximum linear augmentation was 3.65 mm. Histologic analysis of the regenerated areas revealed the presence of compact newly formed bone with no sign of inflammation...
May 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28401330/cordycepin-confers-neuroprotection-in-mice-models-of-intracerebral-hemorrhage-via-suppressing-nlrp3-inflammasome-activation
#19
Yijun Cheng, Yongxu Wei, Wenlei Yang, Yaying Song, Hanbing Shang, Yu Cai, Zhebao Wu, Weiguo Zhao
Neuroinflammation has been recognized as a major contributor to brain injury caused by intracerebral hemorrhage (ICH). Nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome acts as an important mediator of inflammatory response in various inflammation-related diseases including hemorrhagic insults. Cordycepin has recently been shown to possess anti-inflammatory effect; however, its role and the possible underlying mechanisms in ICH remain unclear. This study was designed to investigate the neuroprotective effect of cordycepin in mice models of ICH and to elucidate the underlying molecular mechanisms...
April 11, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28400817/nonhuman-primate-models-of-focal-cerebral-ischemia
#20
REVIEW
Jingjing Fan, Yi Li, Xinyu Fu, Lijuan Li, Xiaoting Hao, Shasha Li
Rodents have been widely used in the production of cerebral ischemia models. However, successful therapies have been proven on experimental rodent stroke model, and they have often failed to be effective when tested clinically. Therefore, nonhuman primates were recommended as the ideal alternatives, owing to their similarities with the human cerebrovascular system, brain metabolism, grey to white matter ratio and even their rich behavioral repertoire. The present review is a thorough summary of ten methods that establish nonhuman primate models of focal cerebral ischemia; electrocoagulation, endothelin-1-induced occlusion, microvascular clip occlusion, autologous blood clot embolization, balloon inflation, microcatheter embolization, coil embolization, surgical suture embolization, suture, and photochemical induction methods...
February 2017: Neural Regeneration Research
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