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https://www.readbyqxmd.com/read/29721337/influence-of-seasonality-and-circulating-cytokines-on-serial-quantiferon-discordances
#1
Marsha L Griffin, Saroochi Agarwal, Melissa Zhu Murphy, Larry D Teeter, Edward A Graviss
Objectives. An 18-month prospective study serially tested healthcare workers (HCWs) for tuberculosis infection (TBI) and reported discordant QuantiFERON Gold In-Tube® (QFT) results in some participants. The purpose of the current study was to investigate whether the interferon-gamma (IFN- γ ) measured by QFT in discordant individuals could be influenced by other circulating cytokines that vary seasonally at the time of phlebotomy. Methods. The CDC funded TBESC Task Order 18 (TO18) project to assess the use of Interferon Gamma Release Assays (IGRAs), T-SPOT...
2018: Tuberculosis Research and Treatment
https://www.readbyqxmd.com/read/29705566/vinorelbine-cyclophosphamide-compared-to-cyclophosphamide-in-peripheral-blood-stem-cell-mobilization-for-multiple-myeloma
#2
Sanjay de Mel, Yunxin Chen, Adeline Lin, Teck Guan Soh, Melissa Ooi, Eng Soo Yap, Lara Kristina Sioco Donato, Nurul Aidah Abdul Halim, Joanna Mah, Karen Lim, Li Mei Poon, Belinda Tan, Yelly, Hui Li Lim, Liang Piu Koh, Bee Choo Tai, Zhaojin Chen, Wee Joo Chng, Satish Kumar Gopalakrishnan, Lip Kun Tan
BACKGROUND: High dose Cyclophosphamide (Cy) and Vinorelbine Cyclophosphamide (Vino-Cy) are stem cell (SC) mobilisation options for patients with multiple myeloma (MM). We present a comparison of mobilisation outcomes using these regimens. PATIENTS AND METHODS: Vino-Cy patients received Vinorelbine 25 mg/m2 on day 1, cyclophosphamide 1500 mg/m2 on day 2, and pegylated GCSF on day 4 or GCSF 10 mcg/kg/day from day 4 onwards. Cy patients were given cyclophosphamide 4000 mg/m2 on day 1 and GCSF10 mcg/kg/day from day 5 onwards...
April 23, 2018: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/29676778/indirect-co-cultures-of-healthy-mesenchymal-stem-cells-restore-the-physiological-phenotypic-profile-of-psoriatic-mesenchymal-stem-cells
#3
A Campanati, M Orciani, G Sorgentoni, V Consales, M Mattioli Belmonte, R Di Primio, A Offidani
Psoriasis microenvironment, characterized by an imbalance between Th1/Th17 and Th2 cytokines, influences also mesenchymal stem cells (MSCs) phenotypic profile. MSCs from healthy donors (H-MSCs) can exert a strong paracrine effect by secreting active soluble factors, able to modulate the inflammation in the microenvironment. To evaluate the influence of H-MSCs on MSCs from psoriatic patients (PsO-MSCs), H-MSCs and PsO-MSCs were isolated and characterized. Indirect co-culture of H-MSCs with PsO-MSCs was performed; effects on proliferation and expression of cytokines linked to Th1/Th17 and Th2 pathways were assayed before and after co-culture...
April 20, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29603201/pr-957-mediates-neuroprotection-by-inhibiting-th17-differentiation-and-modulating-cytokine-production-in-a-mouse-model-of-ischemic-stroke
#4
Ying Guo, Xiuju Chen, Daojing Li, Haijie Liu, Yanan Ding, Ranran Han, Yanchao Shi, Xiaofeng Ma
Acute ischemic stroke can induce secondary brain injury by activating an inflammatory response that contributes to clinical impairment. As a specific inhibitor of the immunoproteasome subunit low molecular weight polypeptide 7 (LMP7), PR-957 may participate in regulating pathophysiologic and inflammatory responses in multiple diseases of the CNS. We investigated the neuroprotective properties of PR-957 in a mouse model of stroke, induced by middle cerebral artery occlusion (MCAO). After MCAO and injections of PR-957 or vehicle, we evaluated mice behaviorally using modified Neurological Severity Scores (mNSS) and sensorimotor tests, including the adhesive-removal test, a foot-fault test, and an inclined plane test...
March 30, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29575605/impact-of-cavitation-high-shear-stress-and-air-liquid-interfaces-on-protein-aggregation
#5
Mark Duerkop, Eva Berger, Astrid Dürauer, Alois Jungbauer
The reported impact of shear stress on protein aggregation has been contradictory. At high shear rates, the occurrence of cavitation or entrapment of air is reasonable and their effects possibly misattributed to shear stress. We tested nine different proteins (α-lactalbumin, two antibodies, fibroblast growth factor 2, granulocyte colony stimulating factor (GCSF), green fluorescence protein, hemoglobin, human serum albumin and lysozyme) for their aggregation behavior on vapor/liquid interfaces generated by cavitation and compared it to the isolated effects of high shear stress and air/liquid interfaces generated by foaming...
March 25, 2018: Biotechnology Journal
https://www.readbyqxmd.com/read/29548470/characteristics-and-immune-enhancing-activity-of-pectic-polysaccharides-from-sweet-cherry-prunus-avium
#6
Jinping Cao, Dandan Tang, Yue Wang, Xian Li, Li Hong, Chongde Sun
Two water soluble polysaccharides components PAPS-1 and PAPS-2 with homogeneously distributed molecular weight were obtained from Prunus avium. PAPS-1 and PAPS-2 contained GalA: Ara: Gal: Rha: GluA: Glu in 49.38: 32.39: 10.68: 4.66: 1.94: 0.48 and 77.18: 14.91: 3.39: 3.46: 0.93: 0.19 M ratios respectively, as well as trace amount of mannose and fucose. Infrared spectroscopy (IR), nuclear magnetic resonance (NMR) and methylation analysis indicated that both fractions were type I rhamnogalacturonan (RG-I) pectic polysaccharides with glycan side chains constituted mainly of arabinose with minor amount of galactose...
July 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29507628/longitudinal-multiplexed-measurement-of-quantitative-proteomic-signatures-in-mouse-lymphoma-models-using-magneto-nanosensors
#7
Jung-Rok Lee, Iris Appelmann, Cornelius Miething, Tyler O Shultz, Daniel Ruderman, Dokyoon Kim, Parag Mallick, Scott W Lowe, Shan X Wang
Cancer proteomics is the manifestation of relevant biological processes in cancer development. Thus, it reflects the activities of tumor cells, host-tumor interactions, and systemic responses to cancer therapy. To understand the causal effects of tumorigenesis or therapeutic intervention, longitudinal studies are greatly needed. However, most of the conventional mouse experiments are unlikely to accommodate frequent collection of serum samples with a large enough volume for multiple protein assays towards single-object analysis...
2018: Theranostics
https://www.readbyqxmd.com/read/29438784/novel-antibody-cytokine-fusion-proteins-featuring-granulocyte-colony-stimulating-factor-interleukin-3-and-interleukin-4-as-payloads
#8
Anja Sophie Schmid, Diana Tintor, Dario Neri
Neutrophils can strongly influence disease activity in cancer and in chronic inflammation. Here, we report for the first time the construction and characterization of antibody-fusion proteins featuring granulocyte-colony stimulating factor and interleukin-3 as payloads capable of enhancing neutrophil activity and a novel antibody-interleukin-4 fusion protein with neutrophil inhibitory potential. We used the F8 antibody specific to the alternatively-spliced extra domain A (EDA) of fibronectin as a targeting agent, since the cognate antigen is strongly upregulated in diseases characterized by angiogenesis...
April 10, 2018: Journal of Biotechnology
https://www.readbyqxmd.com/read/29391265/efficacy-of-granulocyte-colony-stimulating-factor-and-n-acetylcysteine-therapies-in-patients-with-severe-alcoholic-hepatitis
#9
Virendra Singh, Amarjit Keisham, Ashish Bhalla, Navneet Sharma, Ritesh Agarwal, Ratiram Sharma, Akash Singh
BACKGROUND & AIMS: Patients with alcoholic hepatitis (AH) have high mortality, so new therapies are needed. Administration of granulocyte colony stimulating factor (G-CSF) increases survival times of patients with AH. It is not known whether addition of N-acetyl cysteine (NAC) to G-CSF could further increase survival time. We performed a randomized controlled pilot study to compare the efficacy of standard medical therapy with pentoxifylline to treatment with a combination of G-CSF and standard medical therapy as well as to the combination of NAC, G-CSF, and standard medical therapy in patients with severe AH...
January 31, 2018: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29376143/bevacizumab-injection-in-patients-with-neovascular-age-related-macular-degeneration-increases-angiogenic-biomarkers
#10
Thiago Cabral, Luiz H Lima, Luiz Guilherme M Mello, Júlia Polido, Éverton P Correa, Akiyoshi Oshima, Jimmy Duong, Pedro Serracarbassa, Caio V Regatieri, Vinit B Mahajan, Rubens Belfort
Purpose: To evaluate the expression of 19 angiogenic biomarkers in the aqueous humor before and after intravitreal bevacizumab injection (IVB) in eyes with neovascular age-related macular degeneration (AMD). Design: Prospective, noncomparative, interventional case series. Participants: Twenty-three eyes of 23 treatment-naïve patients with choroidal neovascularization (CNV) secondary to neovascular AMD. Methods: Eyes were diagnosed with CNV secondary to neovascular AMD and were treated with 3 monthly IVBs...
January 2018: Ophthalmology Retina
https://www.readbyqxmd.com/read/29355504/parp-1-inhibition-ameliorates-elastase-induced-lung-inflammation-and-emphysema-in-mice
#11
Vivek Dharwal, Amarjit S Naura
COPD is associated with high morbidity and mortality and no effective treatment is available till date. We have previously reported that PARP-1 plays an important role in the establishment of airway inflammation associated with asthma and ALI. In the present work, we have evaluated the beneficial effects of PARP-1 inhibition on COPD pathogenesis utilizing elastase induced mouse model of the disease. Our data show that PARP-1 inhibition by olaparib significantly reduced the elastase-induced recruitment of inflammatory cells particularly neutrophils in the lungs of mice when administered at a dose of 5 mg/kg b...
April 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29314865/il-17-plays-a-role-in-rsv-induced-lung-inflammation-and-emphysema-in-elastase-and-lps-injured-mice
#12
Yohannes A Mebratu, Yohannes Tesfaigzi
Respiratory syncytial virus (RSV) is associated with enhanced progression of chronic obstructive pulmonary disease (COPD) and COPD exacerbations. However, little is known about the role of IL-17 in RSV-induced lung injury. We first investigated the role of RSV infection in enhancing mucous cell hyperplasia and airspace enlargement in the lungs of mice injured with elastase and lipopolysaccharide (E/LPS). Mice injured with E/LPS had an enhanced and prolonged neutrophilic response to RSV that was associated with decreased levels of type I IFN and increased levels of IL-17, IL-23, CXCL-1, GCSF and CXCL-5 and MMP-9...
January 9, 2018: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29305046/proinflammatory-biomarkers-level-and-functional-genetic-polymorphisms-in-periprosthetic-joint-infection
#13
Bülent Erdemli, Emre Anıl Özbek, Kerem Başarir, Zeynep Ceren Karahan, Duygu Öcal, Derya Biriken
OBJECTIVE: The aims of this study were 1) to identify the level of inflammatory biomarkers interleukin (IL)-1α, IL-1β, IL-6, IL-8, IL-17, C-reactive protein (CRP), granulocyte colony-stimulating factor (GCSF), ferritin, and tumor necrosis factor (TNF)-α in serum and synovial fluid samples of patients who underwent revision arthroplasty surgery; 2) to establish the relationship between serum and synovial fluid levels; 3) to determine if any of the 11 genetic polymorphisms of TNFα, IL-1, IL-6, IL-8, IL-17, and GCSF on the encoding genes was associated with periprosthetic joint infection (PJI)...
January 2, 2018: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29288534/an-overview-on-vadimezan-dmxaa-the-vascular-disrupting-agent
#14
REVIEW
Amir Daei Farshchi Adli, Rana Jahanban-Esfahlan, Khaled Seidi, Sonia Samandari-Rad, Nosratollah Zarghami
Vascular disrupting agents (VDAs), a group of cancer remedies, can cause a specific and irreversible destruction of established tumor vessels, and the complete halt of blood flow in the tumor. DMXAA (ASA404) or Vadimezan, a flavone-acetic acid-based drug, is the most promising VDAs that induces a rapid shutdown of blood flow in tumors but not in normal tissue. The exact mechanism of vascular disruption is unknown; however, proposed direct and indirect mechanisms of action for DMXAA comprises (i) inducing apoptosis in endothelial cells; (ii) hemorrhagic necrosis and ischemia in tumor; (iii) release of serotonin (5-HT); (vi) stimulation of innate immune system; (v) production of inflammatory cytokines, for example TNF, IL-6, GCSF, KC, IP-10, and MCP-1; (vi) activation of NFκB and p38 (MAPK); (vii) production of nitric oxide; and (viii) reducing tumor energetics and membrane turnover...
December 30, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/29231783/dexamethasone-exacerbates-cytotoxic-chemotherapy-induced-lethargy-and-weight-loss-in-female-tumor-free-mice
#15
John Wong, Lisa T Tran, Kaari A Lynch, Lisa J Wood
Cytotoxic chemotherapy can induce a systemic inflammatory response which has been proposed to be an underlying mechanism of cancer treatment related fatigue. Dexamethasone, a synthetic glucocorticoid that has potent anti-inflammatory effects, is incorporated into chemotherapy regimens to prevent chemotherapy-induced nausea and vomiting (CINV). The purpose of this study was to determine whether by suppressing cytotoxic chemotherapy-induced inflammation, dexamethasone could ameliorate chemotherapy induced fatigue/lethargy in tumor free mice...
January 2, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29189485/myeloid-derived-suppressor-cells-and-their-potential-application-in-transplantation
#16
Joseph R Scalea, Young Suk Lee, Eduardo Davila, Jonathan S Bromberg
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of immunosuppressive cells of the myeloid lineage upregulated by mediators of inflammation, such as IL-2, granulocyte colony-stimulating factor, and S100A8/A9. These cells have been studied extensively by tumor biologists. Because of their robust immunosuppressive potential, MDSCs have stirred recent interest among transplant immunologists as well. MDSCs inhibit T-cell responses through, among other mechanisms, the activity of arginase-1 and inducible nitric oxide synthase, and the expansion of T regulatory cells...
March 2018: Transplantation
https://www.readbyqxmd.com/read/29171913/monitor-gcsf-dlbcl-subanalysis-treatment-patterns-outcomes-with-biosimilar-filgrastim-for-chemotherapy-induced-febrile-neutropenia-prophylaxis
#17
Pere Gascón, Andriy Krendyukov, Nadja Höbel, Matti Aapro
OBJECTIVE: Prospective data on the use of granulocyte-colony-stimulating factor (G-CSF) in non-Hodgkin's lymphoma and its aggressive subtypes, including diffuse large B-cell lymphoma (DLBCL), are limited. MONITOR-GCSF is a pan-European, multicenter, prospective, observational study aiming to describe treatment patterns and clinical outcomes in patients receiving biosimilar filgrastim in the prophylaxis of chemotherapy-induced neutropenia (CIN) and febrile neutropenia (FN). METHODS: This analysis describes patient characteristics, treatment patterns, and outcomes for 245 patients with stage 3 or 4 DLBCL receiving ≤6 chemotherapy cycles as part of MONITOR-GCSF study, including patients aged ≥65 years and ≥70 years...
March 2018: European Journal of Haematology
https://www.readbyqxmd.com/read/29163498/cytokine-profiles-of-severe-influenza-virus-related-complications-in-children
#18
Andrew Fiore-Gartland, Angela Panoskaltsis-Mortari, Anna A Agan, Anushay J Mistry, Paul G Thomas, Michael A Matthay, Tomer Hertz, Adrienne G Randolph
Rationale: Effective immunomodulatory therapies for children with life-threatening "cytokine storm" triggered by acute influenza infection are lacking. Understanding the immune profiles of children progressing to severe lung injury and/or septic shock could provide insight into pathogenesis. Objectives: To compare the endotracheal and serum cytokine profiles of children with influenza-related critical illness and to identify their associations with severe influenza-associated complications...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29156756/mir-221-regulated-kit-level-by-wild-type-or-leukemia-mutant-runx1-a-determinant-of-single-myeloblast-fate-decisions-that-collectively-drives-or-hinders-granulopoiesis
#19
Stefano Rossetti, Michael J Anauo, Nicoletta Sacchi
RUNX1, a master transcription factor of hematopoiesis, was shown to orchestrate both cell proliferation and differentiation during granulopoiesis by regulating microRNAs (miRs). In this study, taking advantage of the miR-ON reporter system, we monitored first, how the granulocyte colony stimulation factor (GCSF) temporally modulates the concomitant level variation of miR-221 and one of its prototypic targets, the stem cell factor receptor KIT, in single 32DmiR-ON-221 myeloblasts expressing wild type RUNX1. Second, with the same reporter system we assessed how these temporal dynamics are affected by the t(8;21)(q22;q22) acute myelogenous leukemia mutant RUNX1-MTG8 (RM8) in single 32D-RM8miR-ON-221 myeloblasts...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29141152/t-m-values-and-unfolded-fraction-can-predict-aggregation-rates-for-granulocyte-colony-stimulating-factor-variant-formulations-but-not-under-predominantly-native-conditions
#20
Mathew J Robinson, Paul Matejtschuk, Adrian F Bristow, Paul A Dalby
Protein engineering and formulation optimization strategies can be taken to minimize protein aggregation in the biopharmaceutical industry. Short-term stability measures such as the midpoint transition temperature (Tm ) for global unfolding provide convenient surrogates for longer-term (e.g., 2-year) degradation kinetics, with which to optimize formulations on practical time-scales. While successful in some cases, their limitations have not been fully evaluated or understood. Tm values are known to correlate with chemical degradation kinetics for wild-type granulocyte colony stimulating factor (GCSF) at pH 4-5...
January 2, 2018: Molecular Pharmaceutics
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