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T cell facs analysis

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https://www.readbyqxmd.com/read/27852609/il-17-mediates-neutrophil-infiltration-and-renal-fibrosis-following-recovery-from-ischemia-reperfusion-compensatory-role-of-natural-killer-cells-in-athymic-rats
#1
Purvi Mehrotra, Jason A Collett, Seth McKinney, Jackson Stevens, Carlie M Ivancic, David P Basile
T cells have been implicated in the pathogenesis of AKI as well as its progression to CKD. Previous studies suggest that Th17 cells participates during the AKI to CKD transition and inhibition of T cell activity by mycophenolate mofetil (MMF) or losartan attenuates the development of fibrosis following AKI. We hypothesized that T cell deficient rats may have reduced levels of IL-17 cytokine leading to decreased fibrosis following AKI. Renal I/R was performed on T cell deficient athymic rats (Foxn1rnu-/rnu-) and control euthymic rats (Foxn1rnu-/+) and CKD progression was hastened by unilateral nephrectomy at Day 33 and subsequent exposure to 4...
November 16, 2016: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/27828665/aerobic-training-modulates-t-cell-activation-in-elderly-women-with-knee-osteoarthritis
#2
W F Gomes, A C R Lacerda, G E A Brito-Melo, S F Fonseca, E Rocha-Vieira, A A O Leopoldino, M R Amorim, V A Mendonça
Osteoarthritis of the knee (kOA) is a disease that mainly affects the elderly and can lead to major physical and functional limitations. However, the specific effects of walking, particularly on the immune system, are unknown. Therefore, this study aimed to analyze the effect of 12 weeks of walking (3×/week) on the leukocyte profile and quality of life (QL) of elderly women with kOA. Sixteen women (age: 67±4 years, body mass index: 28.07±4.16 kg/m2) participated in a walking program. The variables were assessed before and after 12 weeks of training with a progressively longer duration (30-55 min) and higher intensity (72-82% of HRmax determined using a graded incremental treadmill test)...
2016: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/27812566/betacyanins-enhance-vitexin-2-o-xyloside-mediated-inhibition-of-proliferation-of-t24-bladder-cancer-cells
#3
E S Scarpa, M Emanuelli, A Frati, V Pozzi, E Antonini, G Diamantini, G Di Ruscio, D Sartini, T Armeni, F Palma, P Ninfali
Betacyanins (BC) were purified from beetroot (Beta vulgaris var. rubra L.) and tested, alone or in combination with vitexin-2-O-xyloside (XVX) from Beta vulgaris var. cicla L., for their ability to reduce the proliferation rate in T24 bladder cancer cells. Combination of BC and XVX exhibited a synergistic effect concerning the inhibition of proliferation in T24 cancer cells at 24 and 48 h but not after 72 h of incubation. The induction of apoptosis was evidenced by means of fluorescence activated cell sorting (FACS) analysis, as well as through the increase in caspase 3 and 8 activities...
November 4, 2016: Food & Function
https://www.readbyqxmd.com/read/27802137/chromatin-profiling-of-drosophila-cns-subpopulations-identifies-active-transcriptional-enhancers
#4
Joseph C Pearson, Daniel J McKay, Jason D Lieb, Stephen T Crews
One of the key issues in studying transcriptional regulation during development is how to employ genome-wide assays that reveals sites of open chromatin and transcription factor binding to efficiently identify biologically relevant genes and enhancers. Analysis of Drosophila CNS midline cell development provides a useful system for studying transcriptional regulation at the genomic level due to a large, well-characterized set of midline-expressed genes and in vivo validated enhancers. In this study, FAIRE-seq on FACS-purified midline cells was performed and the midline FAIRE data were compared with whole-embryo FAIRE data...
October 15, 2016: Development
https://www.readbyqxmd.com/read/27787803/single-cell-rna-sequencing-of-human-t-cells
#5
Alexandra-Chloé Villani, Karthik Shekhar
Understanding how populations of human T cells leverage cellular heterogeneity, plasticity, and diversity to achieve a wide range of functional flexibility, particularly during dynamic processes such as development, differentiation, and antigenic response, is a core challenge that is well suited for single-cell analysis. Hypothesis-free evaluation of cellular states and subpopulations by transcriptional profiling of single T cells can identify relationships that may be obscured by targeted approaches such as FACS sorting on cell-surface antigens, or bulk expression analysis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27787790/facs-analysis-of-memory-t-lymphocytes
#6
Enrico Lugli, Veronica Zanon, Domenico Mavilio, Alessandra Roberto
Flow cytometry is a powerful and robust technology for detecting and monitoring multiple markers at the level of single cells. Since its early development, flow cytometry has been used to assess heterogeneity in a cell suspension. Over the years, the increasing number of parameters that could be included in a single assay combined with physical separation by fluorescence-activated cell sorting (FACS) revealed that the T cell compartment is extremely heterogenous in terms of phenotypic diversity, functional capacity, and transcriptional regulation...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27779702/extract-of-caulis-spatholobi-a-novel-blocker-targeting-tumor-cell%C3%A2-induced-platelet-aggregation-inhibits-breast-cancer-metastasis
#7
Xi Chen, Qi Li, Xiao-Xi Kan, Ya-Jie Wang, Yu-Jie Li, Qing Yang, Hong-Bin Xiao, Ying Chen, Xiao-Gang Weng, Wei-Yan Cai, Xiao-Xin Zhu
Metastasis of breast cancer is the vital step for malignant progression. During such a process, hematogenous metastasis is an indispensable approach for the dissemination of cancer cells. A platelet, contributes to hypercoagulable state, and is also identified the crucial factor in the coagulation system for supporting metastasis. Therefore, the relationship of a platelet and a tumor cell plays a critical role in tumor cell metastasis. Consequently, inhibiting tumor cell‑induced platelet aggregation (TCIPA) is recongnized as a crucial target on suppression of tumor metastasis such as aspirin (ASA)...
October 19, 2016: Oncology Reports
https://www.readbyqxmd.com/read/27770341/preoperative-neutrophil-lymphocyte-and-lymphocyte-monocyte-ratios-reflect-immune-cell-population-rearrangement-in-resectable-pancreatic-cancer
#8
Marek Sierzega, Marzena Lenart, Magdalena Rutkowska, Marta Surman, Bozenna Mytar, Andrzej Matyja, Maciej Siedlar, Jan Kulig
BACKGROUND: Neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), and lymphocyte-monocyte ratio (LMR) may serve as a simple index of the immune function. The aim of this study was to investigate the prognostic significance of NLR, PLR, and LMR in patients with resectable pancreatic ductal adenocarcinoma (PDAC) and to verify whether such biomarkers are associated with changes in populations of lymphoid cells. METHODS: The prognostic implications of blood count parameters were evaluated in a retrospective cohort of 442 subjects undergoing pancreatic resections for PDAC...
October 21, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27753935/os-05-10-the-microbial-metabolite-butyrate-attenuates-angiotensin-ii-induced-hypertension-and-dysbiosis
#9
Seungbum Kim, Gary Wang, Gilberto Lobaton, Eric Li, Tao Yang, Mohan Raizada
OBJECTIVE: Our previous studies have demonstrated that gut microbial dysbiosis is linked to high blood pressure in patients. This was associated with decreases in butyrate- and acetate- producing microbial populations. Thus, our objective in this study was to investigate the hypothesis that infusion of butyrate would impact dysbiosis, gut immunity and attenuate hypertension. DESIGN AND METHOD: C57B6 mice were divided into 4 groups; Saline infused, Angiotensin II (750ng/kg/min) infused, Ang II infused and butyrate treated (0...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27725115/early-hematopoiesis-in-multiple-sclerosis-patients
#10
Daniel Jons, Maria Kneider, Linda Fogelstrand, Anders Jeppsson, Stefan Jacobsson, Oluf Andersen
Contemporary evidence supports that MS immunopathology starts in the peripheral lymphatic system. However, the site and character of crucial initiating events are unknown. We examined subsets of the first stages of blood cells in the bone marrow of 9 MS patients and 11 neurologically healthy controls using FACS analysis. The proportion of natural killer T cells was lower (P=0.045) in the bone marrow of MS patients, but proportions of hematogenous stem cells, myeloblasts, and B cell precursor subsets in the bone marrow did not differ between MS patients and controls...
October 15, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/27713399/a-novel-anti-il4r%C3%AE-nanoparticle-efficiently-controls-lung-inflammation-during-asthma
#11
Rabih Halwani, Asma Sultana Shaik, Elaref Ratemi, Sibtain Afzal, Rosan Kenana, Saleh Al-Muhsen, Achraf Al Faraj
Drug resistance and the harmful side effects accompanying the prolonged corticosteroid treatment of chronic pulmonary diseases prompted the development of more specific anti-inflammatory approaches. Several strategies aiming to block IL4Rα, the receptor for a key pro-inflammatory pathway, were investigated. However, their efficiency was limited, mostly due to the systemic or subcutaneous route of administrations. In this paper, we examined the ability of an intranasal treatment with biocompatible nanoparticles targeting IL4Rα to control lung inflammation in ovalbumin (OVA)-sensitized mice...
October 7, 2016: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/27687512/cadmium-induces-oxidative-stress-and-apoptosis-in-lung-epithelial-cells
#12
K M Kiran Kumar, M Naveen Kumar, Rajeshwari H Patil, Rashmi Nagesh, Shubha M Hegde, K Kavya, R L Babu, Govindarajan T Ramesh, S Chidananda Sharma
Cadmium (Cd) is one of the well-known highly toxic environmental and industrial pollutants. Cd first accumulates in the nucleus and later interacts with zinc finger proteins of antiapoptotic genes and inhibit the binding of transcriptional factors and transcription. However, the role of Cd in oxidative stress and apoptosis is less understood. Hence, the present study was undertaken to unveil the mechanism of action. A549 cells were treated with or without Cd and cell viability was measured by MTT assay. Treatment of cells with Cd shows reduced viability in a dose-dependent manner with IC50 of 45 μM concentration...
November 6, 2016: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/27685012/fluorescence-activated-cell-sorting-facs-and-gene-expression-analysis-of-fos-expressing-neurons-from-fresh-and-frozen-rat-brain-tissue
#13
F Javier Rubio, Xuan Li, Qing-Rong Liu, Raffaello Cimbro, Bruce T Hope
The study of neuroplasticity and molecular alterations in learned behaviors is switching from the study of whole brain regions to the study of specific sets of sparsely distributed activated neurons called neuronal ensembles that mediate learned associations. Fluorescence Activated Cell Sorting (FACS) has recently been optimized for adult rat brain tissue and allowed isolation of activated neurons using antibodies against the neuronal marker NeuN and Fos protein, a marker of strongly activated neurons. Until now, Fos-expressing neurons and other cell types were isolated from fresh tissue, which entailed long processing days and allowed very limited numbers of brain samples to be assessed after lengthy and complex behavioral procedures...
2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27663389/immunovirotherapy-with-measles-virus-strains-in-combination-with-anti-pd-1-antibody-blockade-enhances-antitumor-activity-in-glioblastoma-treatment
#14
Jayson Hardcastle, Lisa Mills, Courtney S Malo, Fang Jin, Cheyne Kurokawa, Hirosha Geekiyanage, Mark Schroeder, Jann Sarkaria, Aaron J Johnson, Evanthia Galanis
BACKGROUND: Glioblastoma (GBM) is the most common primary malignant brain tumor and has a dismal prognosis. Measles virus (MV) therapy of GBM is a promising strategy due to preclinical efficacy, excellent clinical safety, and its ability to evoke antitumor pro-inflammatory responses. We hypothesized that combining anti- programmed cell death protein 1 (anti-PD-1) blockade and MV therapy can overcome immunosuppression and enhance immune effector cell responses against GBM, thus improving therapeutic outcome...
September 23, 2016: Neuro-oncology
https://www.readbyqxmd.com/read/27643330/os-05-10-the-microbial-metabolite-butyrate-attenuates-angiotensin-ii-induced-hypertension-and-dysbiosis
#15
Seungbum Kim, Gary Wang, Gilberto Lobaton, Eric Li, Tao Yang, Mohan Raizada
OBJECTIVE: Our previous studies have demonstrated that gut microbial dysbiosis is linked to high blood pressure in patients. This was associated with decreases in butyrate- and acetate- producing microbial populations. Thus, our objective in this study was to investigate the hypothesis that infusion of butyrate would impact dysbiosis, gut immunity and attenuate hypertension. DESIGN AND METHOD: C57B6 mice were divided into 4 groups; Saline infused, Angiotensin II (750ng/kg/min) infused, Ang II infused and butyrate treated (0...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27641610/human-biofield-therapy-does-not-affect-tumor-size-but-modulates-immune-responses-in-a-mouse-model-for-breast-cancer
#16
Gloria Gronowicz, Eric R Secor, John R Flynn, Liisa T Kuhn
OBJECTIVE: To assess the effect of human biofield therapy, an integrative medicine modality, on the development of tumors and metastasis, and immune function in a mouse breast cancer model. METHODS: Mice were injected with 66cl4 mammary carcinoma cells. In study one, mice received biofield therapy after cell injection. In study two, mice were treated by the biofield practitioner only prior to cell injection. Both studies had two control groups of mock biofield treatments and phosphate-buffered saline injection...
September 2016: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/27622939/altered-b-cell-homeostasis-and-toll-like-receptor-9-driven-response-in-patients-affected-by-autoimmune-polyglandular-syndrome-type-1-altered-b-cell-phenotype-and-dysregulation-of-the-b-cell-function-in-apeced-patients
#17
Valentina Perri, Elena Gianchecchi, Riccardo Scarpa, Mariella Valenzise, Maria Manuela Rosado, Ezio Giorda, Antonino Crinò, Marco Cappa, Susi Barollo, Silvia Garelli, Corrado Betterle, Alessandra Fierabracci
APECED is a T-cell mediated disease with increased frequencies of CD8+ effector and reduction of FoxP3+ T regulatory cells. Antibodies against affected organs and neutralizing to cytokines are found in the peripheral blood. The contribution of B cells to multiorgan autoimmunity in Aire-/- mice was reported opening perspectives on the utility of anti-B cell therapy. We aimed to analyse the B cell phenotype of APECED patients compared to age-matched controls. FACS analysis was conducted on PBMC in basal conditions and following CpG stimulation...
September 9, 2016: Immunobiology
https://www.readbyqxmd.com/read/27611664/quantitation-of-murine-stroma-and-selective-purification-of-the-human-tumor-component-of-patient-derived-xenografts-for-genomic-analysis
#18
Valentina E Schneeberger, Viola Allaj, Eric E Gardner, J T Poirier, Charles M Rudin
Patient-derived xenograft (PDX) mouse models are increasingly used for preclinical therapeutic testing of human cancer. A limitation in molecular and genetic characterization of PDX tumors is the presence of integral murine stroma. This is particularly problematic for genomic sequencing of PDX models. Rapid and dependable approaches for quantitating stromal content and purifying the malignant human component of these tumors are needed. We used a recently developed technique exploiting species-specific polymerase chain reaction (PCR) amplicon length (ssPAL) differences to define the fractional composition of murine and human DNA, which was proportional to the fractional composition of cells in a series of lung cancer PDX lines...
2016: PloS One
https://www.readbyqxmd.com/read/27595398/expression-of-jak3-sensitive-na-coupled-glucose-carrier-sglt1-in-activated-cytotoxic-t-lymphocytes
#19
Shefalee K Bhavsar, Yogesh Singh, Piyush Sharma, Vishal Khairnar, Zohreh Hosseinzadeh, Shaqiu Zhang, Monica Palmada, Ivan Sabolic, Hermann Koepsell, Karl S Lang, Philipp A Lang, Florian Lang
BACKGROUND: Similar to tumor cells, activated T-lymphocytes generate ATP mainly by glycolytic degradation of glucose. Lymphocyte glucose uptake involves non-concentrative glucose carriers of the GLUT family. In contrast to GLUT isoforms, Na+-coupled glucose-carrier SGLT1 accumulates glucose against glucose gradients and is effective at low extracellular glucose concentrations. The present study explored expression and regulation of SGLT1 in activated murine splenic cytotoxic T cells (CTLs) and human Jurkat T cells...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27589568/t-cell-abundance-in-blood-predicts-acute-organ-toxicity-in-chemoradiotherapy-for-head-and-neck-cancer
#20
L Milena Beschel, Martin Leu, Sybille D Reichardt, Margret Rave-Fränk, Markus A Schirmer, Christine Stadelmann, Martin Canis, Hendrik A Wolff, Holger M Reichardt
Treatment of head and neck squamous cell carcinoma (HNSCC) by chemoradiotherapy (CRT) often results in high-grade acute organ toxicity (HGAOT). As these adverse effects impair the patients' quality of life and the feasibility of the planned therapy, we sought to analyze immunological parameters in tumor material and blood samples obtained from 48 HNSCC patients in order to assess the potential to predict the individual acute organ toxicity. T cells in the tumor stroma were enriched in patients developing HGAOT whereas levels of soluble factors in the plasma and gene expression in whole blood did not coincide with the occurrence of acute organ toxicity...
August 29, 2016: Oncotarget
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