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https://www.readbyqxmd.com/read/28821990/upregulation-of-cd16-monocyte-subsets-in-systemic-lupus-erythematous-patients
#1
Ziyan Wu, Shulan Zhang, Lidan Zhao, Yunyun Fei, Li Wang, Jing Li, Xiaoting Wen, Xiaofeng Zeng, Fengchun Zhang, Yongzhe Li
Monocytes are an important component in the innate immune system. However, studies to date have failed to conclude whether their levels are altered in patients with systemic lupus erythematosus (SLE). We applied the cytodiff counting method and comprehensively measured the circulating levels of distinct white blood cell (WBC) subsets, including CD16+, CD16-, and total monocytes, in 61 SLE patients as well as in 203 age-matched healthy controls (HCs). The absolute number of CD16- monocytes, total monocytes, immature granulocytes, mature neutrophils, total neutrophils, and T cell blasts was significantly higher, that of non-cytotoxic T lymphocytes, cytotoxic T + NK lymphocytes, T + NK lymphocytes, total lymphocytes, basophils, and eosinophils significantly lower (all p < 0...
August 19, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28817687/morphologic-phenotypic-and-transcriptomic-characterization-of-classically-and-alternatively-activated-canine-blood-derived-macrophages-in-vitro
#2
Franziska Heinrich, Annika Lehmbecker, Barbara B Raddatz, Kristel Kegler, Andrea Tipold, Veronika M Stein, Arno Kalkuhl, Ulrich Deschl, Wolfgang Baumgärtner, Reiner Ulrich, Ingo Spitzbarth
Macrophages are a heterogeneous cell population playing a pivotal role in tissue homeostasis and inflammation, and their phenotype strongly depends on the micromilieu. Despite its increasing importance as a translational animal model for human diseases, there is a considerable gap of knowledge with respect to macrophage polarization in dogs. The present study comprehensively investigated the morphologic, phenotypic, and transcriptomic characteristics of unstimulated (M0), M1- (GM-CSF, LPS, IFNγ-stimulated) and M2- (M-CSF, IL-4-stimulated)-polarized canine blood-derived macrophages in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28810810/reduced-expression-of-siglec-7-nkg2a-and-cd57-on-terminally-differentiated-cd56-cd16-nk-cell-subset-is-associated-with-nk-cell-dysfunction-in-chronic-hiv-1-clade-c-infection
#3
Michael Zulu, Kewreshini Naidoo, Zenele Mncube, Manjeetha Jaggernath, Philip Jr Goulder, Thumbi Ndung'u, Marcus Altfeld, Christina Fanesa Thobakgale
BACKGROUND: HIV-1 viremia has been shown to induce several phenotypic and functional abnormalities in natural killer (NK) cells. To assess immune defects associated with HIV viremia, we examined NK cell function, differentiation status and phenotypic alterations based on expression of inhibitory and activating receptors on NK cells in HIV-1 subtype C chronically infected participants from Durban, South Africa. METHODS: NK cell phenotypic profiles were characterized by assessing Siglec-7, NKG2A and NKG2C markers on frozen peripheral blood mononuclear cells (PBMCs) from viremic, antiretroviral therapy (ART)-naïve HIV-1 chronically infected participants (n=23), HIV-1 chronically infected participants who have been on combination antiretroviral therapy (cART) for at least 12 months (n=23) compared to healthy donors (n=23)...
August 16, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28810809/optimization-of-human-nk-cell-manufacturing-fully-automated-separation-improved-i-ex-vivo-i-expansion-using-il-21-with-autologous-feeder-cells-and-generation-of-anti-cd123-car-expressing-effector-cells
#4
Stephan Klöß, Olaf Oberschmidt, Michael Morgan, Julia Dahlke, Lubomir Arseniev, Volker Huppert, Markus Granzin, Tanja Gardlowski, Nadine Matthies, Stefanie Soltenborn, Axel Schambach, Ulrike Koehl
BACKGROUND AND AIMS: The administration of ex-vivo expanded Natural killer (NK) cells as potential antitumor effector cells appears to be suitable for effector cell-based immunotherapies in high-risk cancer patients. However, the GMP-conform manufacturing of clinical-grade NK cells at sufficiently high numbers represent a great challenge. Therefore, we improved and optimized previous expansion protocols for those effector cells through the use of newly developed culture medium, IL-21 and autologous feeder cells...
August 16, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28802832/retroviral-gene-transfer-into-primary-human-nk-cells-activated-by-il-2-and-k562-feeder-cells-expressing-membrane-bound-il-21
#5
Maria A Streltsova, Eugene Barsov, Sofia A Erokhina, Elena I Kovalenko
Natural killer (NK) cells are capable of rapidly recognizing and efficiently killing tumor cells. This makes them a potentially promising agent for cancer immunotherapy. Additional genetic modifications of NK cells may further improve their anti-tumor efficacy. Numerous technical challenges associated with gene delivery into NK cells have significantly tempered this approach. We achieved efficient retroviral vector transduction of primary human NK cells that were stimulated by a combination of IL-2 and engineered K562 cells expressing membrane-bound IL-21...
August 10, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28802588/t-cell-costimulation-blockade-promotes-transplantation-tolerance-in-combination-with-sirolimus-and-post-transplantation-cyclophosphamide-for-haploidentical-transplantation-in-children-with-severe-aplastic-anemia
#6
Sarita Rani Jaiswal, Prakash Bhakuni, Shamsuz Zaman, Satish Bansal, Priyanka Bharadwaj, Sneh Bhargava, Suparno Chakrabarti
We conducted a pilot study employing extended T cell costimulation blockade (COSBL) with Abatacept along with sirolimus and post-transplantation cyclophosphamide (PTCy) in 10 patients (median age 12) with severe aplastic anemia (SAA). Nine patients engrafted in the COSBL group, compared to all 10 patients (median 14 vs 13days) treated on PTCy protocols without abatacept (CONTROL group). The incidence of acute graft-versus-host disease (GVHD) was 10.5% in the COSBL group compared to 50% in the CONTROL group (p=0...
August 9, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28796990/adsorptive-depletion-of-myeloid-lineage-leucocytes-as-remission-induction-therapy-in-patients-with-ulcerative-colitis-after-failure-of-first-line-medications-results-from-a-three-year-real-world-clinical-practice
#7
Takayuki Iida, Kentaro Ikeya, Masaichi Kato, Jinro Abe, Masayoshi Yamamoto, Fumitoshi Watanabe, Ken Sugimoto, Hiroyuki Hanai
BACKGROUND/AIMS: In patients with active ulcerative colitis (UC), pharmacologics, although initially effective in most patients, are associated with refractoriness, loss of response or unfavourable side effects as additional morbidity factors. Depletion of myeloid lineage leucocytes like the CD14(+)CD16(+) monocyte phenotype, which is a major source of tumour necrosis factor-α, by granulocyte/monocyte apheresis (GMA) if effective, is also known to be free from side effects. METHODS: In clinical practice setting, 77 consecutive patients with moderate to severe UC, who failed to respond to first-line medications received GMA with the Adacolumn as remission induction therapy...
August 11, 2017: Digestion
https://www.readbyqxmd.com/read/28792255/host-related-immunodeficiency-in-the-development-of-multiple-myeloma
#8
Talib Dosani, Sham Mailankody, Neha Korde, Elisabet Manasanch, Manisha Bhutani, Nishant Tageja, Mark Roschewski, Mary Kwok, Dickran Kazandjian, Rene Costello, Debra Burton, Yong Zhang, David Liewehr, Seth M Steinberg, Irina Maric, Ola Landgren
Host-related immunodeficiency is known to play a role in the development of multiple myeloma (MM) from its precursor conditions (monoclonal gammopathy of undetermined significance, MGUS, smoldering multiple myeloma, SMM). In order to understand the underlying immune changes in this process, we characterized immune patterns from MGUS to SMM to MM. We further sought to identify potential novel immune biomarkers that may predict progression of SMM to MM. We characterized patterns of circulating lymphocytes in 181 patients using multiparametric flow cytometry...
August 9, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28789689/impact-of-cd14-cd16-monocytes-on-plaque-vulnerability-in-diabetic-and-non-diabetic-patients-with-asymptomatic-coronary-artery-disease-a-cross-sectional-study
#9
Naofumi Yoshida, Hiroyuki Yamamoto, Toshiro Shinke, Hiromasa Otake, Masaru Kuroda, Daisuke Terashita, Hachidai Takahashi, Kazuhiko Sakaguchi, Yushi Hirota, Takuo Emoto, Hilman Zulkifli Amin, Taiji Mizoguchi, Tomohiro Hayashi, Naoto Sasaki, Tomoya Yamashita, Wataru Ogawa, Ken-Ichi Hirata
BACKGROUND: Previously, we have reported that daily glucose fluctuations could affect coronary plaque vulnerability, but the underlying mechanisms remained unclear. This study sought to investigate the impact of CD14(++)CD16(+) monocytes on plaque vulnerability, as assessed by virtual histology intravascular ultrasound (VH-IVUS), as well as their relationship to fluctuating glucose levels in patients with asymptomatic coronary artery disease (CAD). METHODS: Fifty-one patients with asymptomatic CAD, who were undergoing lipid-lowering therapy and underwent VH-IVUS evaluation for angiographically mild to moderate lesions, were enrolled in the study...
August 8, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28777750/polymorphonuclear-neutrophil-functions-are-differentially-altered-in-amnestic-mild-cognitive-impairment-and-mild-alzheimer-s-disease-patients
#10
Aurélie Le Page, Julie Lamoureux, Karine Bourgade, Eric H Frost, Graham Pawelec, Jacek M Witkowski, Anis Larbi, Gilles Dupuis, Tamàs Fülöp
The mechanisms of neurodegeneration in Alzheimer's disease (AD) remain under investigations. Alterations in the blood-brain barrier facilitate exchanges of inflammatory mediators and immune cells between the brain and the periphery in AD. Here, we report analysis of phenotype and functions of polymorphonuclear neutrophils (PMN) in peripheral blood in amnestic mild cognitive impairment (aMCI, n = 13), patients with mild AD (mAD, n = 15), and healthy elderly controls (n = 13). Results showed an increased expression of CD177 in mAD but not in healthy or aMCI patients...
July 29, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28771871/predicting-nk-cell-subsets-using-gene-expression-levels-in-peripheral-blood-and-endometrial-biopsy-specimens
#11
Michael L Davies, Svetlana V Dambaeva, Dimantha Katukurundage, Miroslava Repak, Alice Gilman-Sachs, Joanne Kwak-Kim, Kenneth D Beaman
PROBLEM: In molecular analysis of tissue biopsy specimens, one crucial aspect is characterization of immune cell populations. This is especially important for evaluation of uterine receptivity by assessing levels of lymphocyte populations including CD56(bright) CD16- uterine NK cells and CD56(dim) CD16+ conventional NK cells. Our objective was to investigate whether measuring total RNA transcripts from a tissue specimen would accurately reflect immune cell levels and be a new technique to assess immune cell subsets...
August 3, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28771838/human-regulatory-macrophages-are-potent-in-suppression-of-the-xenoimmune-response-via-indoleamine-2-3-dioxygenase-involved-mechanism-s
#12
Fei Guo, Min Hu, Dandan Huang, Yuanfei Zhao, Benjamin Heng, Gilles Guillemin, Chai K Lim, Wayne J Hawthorne, Shounan Yi
BACKGROUND: For xenotransplantation to truly succeed, we must develop immunomodulatory strategies to suppress the xenoimmune response but by minimizing immunosuppression over the long term. Regulatory macrophages (Mreg) have been shown to suppress polyclonal T-cell proliferation in vitro and prolong allograft survival in vivo. However, the question of whether they are capable of suppressing xenoimmune responses remains unknown. This study assessed the potential of human Mreg to be used as an effective immunomodulatory method in xenotransplantation...
August 2, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28769923/natural-killer-cells-from-patients-with-recombinase-activating-gene-and-non-homologous-end-joining-gene-defects-comprise-a-higher-frequency-of-cd56-bright-nkg2a-cells-and-yet-display-increased-degranulation-and-higher-perforin-content
#13
Kerry Dobbs, Giovanna Tabellini, Enrica Calzoni, Ornella Patrizi, Paula Martinez, Silvia Clara Giliani, Daniele Moratto, Waleed Al-Herz, Caterina Cancrini, Morton Cowan, Jacob Bleesing, Claire Booth, David Buchbinder, Siobhan O Burns, Talal A Chatila, Janet Chou, Vanessa Daza-Cajigal, Lisa M Ott de Bruin, MaiteTeresa de la Morena, Gigliola Di Matteo, Andrea Finocchi, Raif Geha, Rakesh K Goyal, Anthony Hayward, Steven Holland, Chiung-Hui Huang, Maria G Kanariou, Alejandra King, Blanka Kaplan, Anastasiya Kleva, Taco W Kuijpers, Bee Wah Lee, Vassilios Lougaris, Michel Massaad, Isabelle Meyts, Megan Morsheimer, Benedicte Neven, Sung-Yun Pai, Alessandro Plebani, Susan Prockop, Ismail Reisli, Jian Yi Soh, Raz Somech, Troy R Torgerson, Yae-Jaen Kim, Jolan E Walter, Andrew R Gennery, Sevgi Keles, John P Manis, Emanuela Marcenaro, Alessandro Moretta, Silvia Parolini, Luigi D Notarangelo
Mutations of the recombinase-activating genes 1 and 2 (RAG1 and RAG2) in humans are associated with a broad range of phenotypes. For patients with severe clinical presentation, hematopoietic stem cell transplantation (HSCT) represents the only curative treatment; however, high rates of graft failure and incomplete immune reconstitution have been observed, especially after unconditioned haploidentical transplantation. Studies in mice have shown that Rag(-/-) natural killer (NK) cells have a mature phenotype, reduced fitness, and increased cytotoxicity...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28769786/mild-inflammatory-profile-without-gliosis-in-the-c-rel-deficient-mouse-modeling-a-late-onset-parkinsonism
#14
Vanessa Porrini, Mariana Mota, Edoardo Parrella, Arianna Bellucci, Marina Benarese, Lara Faggi, Paolo Tonin, Pier F Spano, Marina Pizzi
The impact of neuroinflammation and microglial activation to Parkinson's disease (PD) progression is still debated. Post-mortem analysis of PD brains has shown that neuroinflammation and microgliosis are key features of end-stage disease. However, microglia neuroimaging studies and evaluation of cerebrospinal fluid (CSF) cytokines in PD patients at earlier stages do not support the occurrence of a pronounced neuroinflammatory process. PD animal models recapitulating the motor and non-motor features of the disease, and the slow and progressive neuropathology, can be of great advantage in understanding whether and how neuroinflammation associates with the onset of symptoms and neuronal loss...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28767057/regulation-of-nkg2d-dependent-nk-cell-functions-the-yin-and-the-yang-of-receptor-endocytosis
#15
REVIEW
Rosa Molfetta, Linda Quatrini, Angela Santoni, Rossella Paolini
Natural-killer receptor group 2, member D (NKG2D) is a well characterized natural killer (NK) cell activating receptor that recognizes several ligands poorly expressed on healthy cells but up-regulated upon stressing stimuli in the context of cancer or viral infection. Although NKG2D ligands represent danger signals that render target cells more susceptible to NK cell lysis, accumulating evidence demonstrates that persistent exposure to ligand-expressing cells causes the decrease of NKG2D surface expression leading to a functional impairment of NKG2D-dependent NK cell functions...
August 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28757397/low-utility-of-serum-25-hydroxyvitamin-d3-and-1-25-dihydroxyvitamin-d3-in-predicting-peripheral-treg-and-th17-cell-counts-in-esrd-and-renal-transplant-patients
#16
Mostafa G Aly, Li Zhu, Rolf Weimer, Gerhard Opelz, Christian Morath, Ruben Kuon, Mohammed Tohamy, Gamal Saadi, Mona Soliman, Walaa Ibrahim, Volker Daniel
BACKGROUND: Vitamin D has shown an immune-modulatory effect in different studies. Vitamin D stimulates Tregs and inhibits Th17 cells. The immune-modulatory role of vitamin D in chronic kidney disease (CKD) and renal transplant patients is unclear. We measured whether different serum levels of vitamin D were associated with an increased or decreased presence of lymphocyte subsets including Treg and Th17 cells in end-stage renal disease (ESRD) and renal transplant recipients. METHODS: Eighty-seven renal transplant recipients and 53 end-stage renal disease (ESRD) patients were enrolled in this study...
July 27, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28754798/frontline-science-cxcr7-mediates-cd14-cd16-monocyte-transmigration-across-the-blood-brain-barrier-a-potential-therapeutic-target-for-neuroaids
#17
Mike Veenstra, Dionna W Williams, Tina M Calderon, Kathryn Anastos, Susan Morgello, Joan W Berman
CD14(+)CD16(+) monocytes transmigrate into the CNS of HIV-positive people in response to chemokines elevated in the brains of infected individuals, including CXCL12. Entry of these cells leads to viral reservoirs, neuroinflammation, and neuronal damage. These may eventually lead to HIV-associated neurocognitive disorders. Although antiretroviral therapy (ART) has significantly improved the lives of HIV-infected people, the prevalence of cognitive deficits remains unchanged despite ART, still affecting >50% of infected individuals...
July 28, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28753113/a-potential-therapy-for-chordoma-via-antibody-dependent-cell-mediated-cytotoxicity-employing-nk-or-high-affinity-nk-cells-in-combination-with-cetuximab
#18
Rika Fujii, Jeffrey Schlom, James W Hodge
OBJECTIVE Chordoma is a rare bone tumor derived from the notochord and is resistant to conventional therapies such as chemotherapy, radiotherapy, and targeting therapeutics. Expression of epidermal growth factor receptor (EGFR) in a large proportion of chordoma specimens indicates a potential target for therapeutic intervention. In this study the authors investigated the potential role of the anti-EGFR antibody cetuximab in immunotherapy for chordoma. METHODS Since cetuximab is a monoclonal antibody of the IgG1 isotype, it has the potential to mediate antibody-dependent cell-mediated cytotoxicity (ADCC) employing natural killer (NK) cells as effectors...
July 28, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28747747/involvement-of-monocyte-subsets-in-the-immunopathology-of-giant-cell-arteritis
#19
Yannick van Sleen, Qi Wang, Kornelis S M van der Geest, Johanna Westra, Wayel H Abdulahad, Peter Heeringa, Annemieke M H Boots, Elisabeth Brouwer
Monocytes/macrophages are critical in systemic and local inflammation in giant cell arteritis (GCA) and possibly in clinically overlapping polymyalgia rheumatica (PMR). Therefore, we aimed to understand the contribution of monocyte subsets and the CX3CR1-CX3CL1 and CCR2-CCL2 migratory pathways, to the pathology of GCA. Peripheral blood monocytes were enumerated in samples from newly-diagnosed, untreated GCA and PMR patients and after prednisone-induced remission. The distribution of classical (CD14(bright)CD16(neg)) and the more pro-inflammatory, intermediate (CD14(bright)CD16+) and non-classical (CD14(dim)CD16+) monocyte subsets was analysed by flow cytometry...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28738359/predictors-of-subclinical-inflammatory-obesity-plasma-levels-of-leptin-very-low-density-lipoprotein-cholesterol-and-cd14-expression-of-cd16-monocytes
#20
Fernanda Leite, Ângela Leite, Ana Santos, Margarida Lima, Joselina Barbosa, Marco Cosentino, Laura Ribeiro
OBJECTIVE: Predictors of subclinical inflammatory obesity (SIO) can be important tools for early therapeutic interventions in obesity-related comorbidities. Waist circumference (WC) and BMI have different SIO sensitivity. We aimed to i) identify SIO predictors and ii) investigate whether CD16+ monocytes are associated with BMI- (generally) or WC-defined (centrally) obesity. METHODS: Anthropometric and metabolic/endocrine (namely catecholamines, adrenaline and noradrenaline) parameters were evaluated, and CD16+ monocytes were studied by flow cytometry in the peripheral blood from 63 blood donors, and compared and correlated to each other...
July 22, 2017: Obesity Facts
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