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Cytokine dynamics

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https://www.readbyqxmd.com/read/29782555/langerin-dcs-regulate-innate-il-17-production-in-the-oral-mucosa-during-candida-albicans-mediated-infection
#1
Florian Sparber, Tamas Dolowschiak, Sarah Mertens, Laura Lauener, Björn E Clausen, Nicole Joller, Patrizia Stoitzner, Roxane Tussiwand, Salomé LeibundGut-Landmann
The opportunistic fungal pathogen Candida albicans frequently causes diseases such as oropharyngeal candidiasis (OPC) in immunocompromised individuals. Although it is well appreciated that the cytokine IL-17 is crucial for protective immunity against OPC, the cellular source and the regulation of this cytokine during infection are still a matter of debate. Here, we directly visualized IL-17 production in the infected tongue of experimentally infected mice, thereby demonstrating that this key cytokine is expressed by three complementary subsets of CD90+ leukocytes: RAG-dependent αβ and γδ T cells, as well as RAG-independent ILCs...
May 21, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29774769/serum-mediated-activation-of-bone-marrow-derived-mesenchymal-stem-cells-in-ischemic-stroke-patients-a-novel-preconditioning-method
#2
Gyeong Joon Moon, Yeon Hee Cho, Dong Hee Kim, Ji Hee Sung, Jeong Pyo Son, Sooyoon Kim, Jae Min Cha, Oh Young Bang
Stroke induces complex and dynamic, local and systemic changes including inflammatory reactions, immune responses, and repair and recovery processes. Mesenchymal stem cells (MSCs) have been shown to enhance neurological recovery after stroke. We hypothesized that serum factors play a critical role in the activation of bone marrow (BM) MSCs after stroke such as by increasing proliferation, paracrine effects, and rejuvenation. Human MSCs (hMSCs) were grown in fetal bovine serum (FBS), normal healthy control serum (NS), or stroke patient serum (SS)...
January 1, 2018: Cell Transplantation
https://www.readbyqxmd.com/read/29768624/analysis-of-the-immunological-biomarker-profile-during-acute-zika-virus-infection-reveals-the-overexpression-of-cxcl10-a-chemokine-linked-to-neuronal-damage
#3
Felipe Gomes Naveca, Gemilson Soares Pontes, Aileen Yu-Hen Chang, George Allan Villarouco da Silva, Valdinete Alves do Nascimento, Dana Cristina da Silva Monteiro, Marineide Souza da Silva, Lígia Fernandes Abdalla, João Hugo Abdalla Santos, Tatiana Amaral Pires de Almeida, Matilde Del Carmen Contreras Mejía, Tirza Gabrielle Ramos de Mesquita, Helia Valeria de Souza Encarnação, Matheus de Souza Gomes, Laurence Rodrigues Amaral, Ana Carolina Campi-Azevedo, Jordana Graziela Coelho-Dos-Reis, Lis Ribeiro do Vale Antonelli, Andréa Teixeira-Carvalho, Olindo Assis Martins-Filho, Rajendranath Ramasawmy
BACKGROUND: Infection with Zika virus (ZIKV) manifests in a broad spectrum of disease ranging from mild illness to severe neurological complications and little is known about Zika immunopathogenesis. OBJECTIVES: To define the immunologic biomarkers that correlate with acute ZIKV infection. METHODS: We characterized the levels of circulating cytokines, chemokines, and growth factors in 54 infected patients of both genders at five different time points after symptom onset using microbeads multiplex immunoassay; comparison to 100 age-matched controls was performed for statistical analysis and data mining...
May 14, 2018: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/29765096/temporal-changes-in-immune-cell-composition-and-cytokines-in-response-to-chemoradiation-in-rectal-cancer
#4
Yong Joon Lee, Sat Byol Lee, Suk Kyung Beak, Yoon Dae Han, Min Soo Cho, Hyuk Hur, Kang Young Lee, Nam Kyu Kim, Byung Soh Min
We measured systemic changes in the immune response in 92 patients receiving preoperative chemoradiation therapy (CRT) and subsequent surgery for rectal cancer. The peripheral blood was sampled five times from the onset of CRT until surgery. Lymphocytes decreased continuously during CRT but increased after CRT. The increased lymphocyte population was predominantly CD8+ T lymphocytes, which accounted for a significantly larger proportion in patients without residual lymph node metastasis than in those with residual lymph node metastasis...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29760065/temperature-regulates-nf-%C3%AE%C2%BAb-dynamics-and-function-through-timing-of-a20-transcription
#5
C V Harper, D J Woodcock, C Lam, M Garcia-Albornoz, A Adamson, L Ashall, W Rowe, P Downton, L Schmidt, S West, D G Spiller, D A Rand, M R H White
NF-κB signaling plays a pivotal role in control of the inflammatory response. We investigated how the dynamics and function of NF-κB were affected by temperature within the mammalian physiological range (34 °C to 40 °C). An increase in temperature led to an increase in NF-κB nuclear/cytoplasmic oscillation frequency following Tumor Necrosis Factor alpha (TNFα) stimulation. Mathematical modeling suggested that this temperature sensitivity might be due to an A20-dependent mechanism, and A20 silencing removed the sensitivity to increased temperature...
May 14, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29754714/membrane-potential-distinctly-modulates-mobility-and-signaling-of-il-2-and-15-receptors-in-t-cells
#6
Éva Nagy, Gábor Mocsár, Veronika Sebestyén, Julianna Volkó, Ferenc Papp, Katalin Tóth, Sándor Damjanovich, György Panyi, Thomas A Waldmann, Andrea Bodnár, György Vámosi
The high electric field across the plasma membrane might influence the conformation and behavior of transmembrane proteins that have uneven charge distributions in or near their transmembrane regions. Membrane depolarization of T cells occurs in the tumor microenvironment and in inflamed tissues because of K+ release from necrotic cells and hypoxia affecting the expression of K+ channels. However, little attention has been given to the effect of membrane potential (MP) changes on membrane receptor function...
May 10, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29753928/dynamic-changes-of-th1-th2-th17-cytokines-and-human-beta-defensin-2-in-hiv-infected-patients-with-oral-candidiasis-during-the-first-year-of-highly-active-anti-retroviral-therapy
#7
Xiangzhi Yong, Zhenmin Liu, Lanlan Jiang, Renchuan Tao, Wei Liu, Linlin Zhang, Yuanyuan Peng, Xuefang Lin, Yuxiao Huang
OBJECTIVE: To investigate the change of Th1/Th2/Th17 cytokines and human beta defensin 2 (HBD-2) in HIV-infected patients with oral candidiasis (OC) and gather information about OC-specific immunity. DESIGN: During the 1st year of highly active anti-retroviral therapy (HAART), 25 HIV-infected patients were followed up at the baseline, 3rd, 6th, 12th month. At each visit, oral manifestations were examined; oral rinses were collected and cultured for Candida; peripheral venous blood was taken to determine CD4 + T cell counts and HIV RNA viral load (VL); both unstimulated whole saliva and peripheral venous blood were taken to determine cytokine (IL-4, IL-17(A/F), IFN-γ) and HBD-2 levels...
May 3, 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29753718/early-tgf-%C3%AE-inhibition-in-mice-reduces-the-incidence-of-breast-cancer-induced-bone-disease-in-a-myeloid-dependent-manner
#8
Denise Buenrostro, Kristin A Kwakwa, Nicole E Putnam, Alyssa R Merkel, Joshua R Johnson, James E Cassat, Julie A Sterling
The tumor-cell microenvironment is recognized as a dynamic place where critical cell interactions occur and play an important role in altering tumorigenesis. While many studies have investigated the effects of cellular cross-talk within distinct tumor microenvironments, these interactions have yet to be fully examined in bone. It is well-established that many common cancers metastasize to bone, resulting in the development of tumor-induced bone disease (TIBD), a multi-facetted illness that is driven by complex cell interactions within the bone marrow...
May 10, 2018: Bone
https://www.readbyqxmd.com/read/29742229/hemoglobin-metabolism-by-products-are-associated-with-an-inflammatory-response-in-patients-with-hemorrhagic-stroke
#9
Cássia Righy, Ricardo Turon, Gabriel de Freitas, André Miguel Japiassú, Hugo Caire de Castro Faria Neto, Marcelo Bozza, Marcus F Oliveira, Fernando A Bozza
OBJECTIVE: To evaluate the relationships of brain iron and heme with the inflammatory response of the systemic and central nervous systems and to investigate the role of defensive systems against the toxicity of iron and heme in the central nervous system. METHODS: We assessed a prospective cohort of patients presenting with intracerebral and subarachnoid hemorrhage. We assayed plasma and cerebrospinal fluid samples for the presence of iron, heme, hemopexin, haptoglobin, enolase, S100-β and cytokines for the first three days following hemorrhagic stroke...
March 2018: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/29740437/targeting-and-therapy-of-glioblastoma-in-a-mouse-model-using-exosomes-derived-from-natural-killer-cells
#10
Liya Zhu, Ji Min Oh, Prakash Gangadaran, Senthilkumar Kalimuthu, Se Hwan Baek, Shin Young Jeong, Sang-Woo Lee, Jaetae Lee, Byeong-Cheol Ahn
Objective: Glioblastoma is a highly aggressive primary brain tumor that is resistant to radiotherapy and chemotherapy. Natural killer (NK) cells have been used to treat incurable cancers. Recent studies have investigated the effectiveness of NK-cell-derived exosomes (NK-Exo) for treating incurable cancers such as melanoma, leukemia, and neuroblastoma; however, NK-Exo have not been used to treat glioblastoma. In the present study, we investigated the antitumor effects of NK-Exo against aggressive glioblastoma both in vitro and in vivo and determined the tumor-targeting ability of NK-Exo by performing fluorescence imaging...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29732889/a-nanoparticle-enhancement-cascade-for-sensitive-multiplex-measurements-of-biomarkers-in-complex-fluids-with-spri
#11
Jan Hendriks, Ivan Stojanovic, Richard B M Schasfoort, Daniël B F Saris, Marcel Karperien
There is large unmet need for reliable biomarker measurement systems for clinical application. Such systems should meet challenging requirements for large scale use, including large dynamic detection range, multiplexing capacity and both high specificity and sensitivity. More importantly, these requirements need to apply to complex biological sam-ples, which require extensive quality control. In this paper, we present the development of an enhancement detection cascade for surface plasmon resonance array imaging (SPRi)...
May 7, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29729165/modern-specific-features-and-therapy-of-psoriasis-and-arthropathic-psoriasis-courses
#12
Orysya O Syzon, Marianna O Dashko, Ulyana V Fedorova
OBJECTIVE: Introduction:Psoriasis affects about 2% of population. In 30-40% of occurrences arthropathic psoriasis (AP) is diagnosed and it leads to 11-19% of disability cases development. Recent studies have shown that psoriasis is often synergistically combined with herpesvirus of the 1st and 2nd type, which, according to many scientists, determines the severity, frequency of recurrences, and the course of this dermatosis. Recently, new biomarkers, i.e. a system of small ribonucleic microRNA acids, have been described...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29724230/correlation-analysis-on-serum-inflammatory-cytokine-level-and-neurogenic-pulmonary-edema-for-children-with-severe-hand-foot-mouth-disease
#13
Jin-Fang Sun, Hao-Lan Li, Bao-Xia Sun
OBJECTIVE: This study aims to discuss the correlation between serum inflammatory cytokines and neurogenic pulmonary edema (NPE) in children with severe hand-foot-mouth disease (HFMD). METHODS: A total of 89 patients with severe HFMD were enrolled into this study. These patients were divided into two groups, according to the presence of NPE: central nervous system disease (CNSD) group and NPE group. Serum IL-4, IL-10, IL-6, IL-17, tumor necrosis factor-α (TNF-α), and interferon-γ (IFN-γ) levels were measured in patients by enzyme-linked immunosorbent assay at 1, 3, and 5 days after admission...
May 3, 2018: European Journal of Medical Research
https://www.readbyqxmd.com/read/29723528/resveratrol-induces-dynamic-changes-to-the-microglia-transcriptome-inhibiting-inflammatory-pathways-and-protecting-against-microglia-mediated-photoreceptor-apoptosis
#14
Johanna Wiedemann, Khalid Rashid, Thomas Langmann
Microglia activation is central to the pathophysiology of retinal degenerative disorders. Resveratrol, a naturally occurring non-flavonoid phenolic compound present in red wine has potent anti-inflammatory and immunomodulatory properties. However, molecular mechanisms by which resveratrol influences microglial inflammatory pathways and housekeeping functions remain unclear. Here, we first studied the immuno-modulatory effects of resveratrol on BV-2 microglial cells at the transcriptome level using DNA-microarrays and selected qRT-PCR analyses...
April 30, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29720526/-pseudomonas-aeruginosa-protease-iv-exacerbates-pneumococcal-pneumonia-and-systemic-disease
#15
Jessica L Bradshaw, Armando R Caballero, Michael A Bierdeman, Kristen V Adams, Haley R Pipkins, Aihua Tang, Richard J O'Callaghan, Larry S McDaniel
Pneumonia is a pulmonary disease affecting people of all ages and is consistently a leading cause of childhood mortality and adult hospitalizations. Streptococcus pneumoniae and Pseudomonas aeruginosa are major lung pathogens commonly associated with community-acquired and nosocomial pneumonia. Additionally, mixed lung infections involving these bacterial pathogens are increasing in prevalence and are frequently more severe than single infections. The cooperative interactions of these two pathogens that impact pulmonary disease severity are understudied...
June 27, 2018: MSphere
https://www.readbyqxmd.com/read/29718653/silk-sponges-ornamented-with-placenta-derived-extracellular-matrix-augments-full-thickness-cutaneous-wound-healing-by-stimulating-neovascularization-and-cellular-migration
#16
Arun Prabhu Rameshbabu, Kamakshi Bankoti, Sayanti Datta, Elavarasan Subramani, Anupam Apoorva, Paulomi Ghosh, Priti Prasanna Maity, Padmavati Manchikanti, Koel Chaudhury, Santanu Dhara
Regeneration of full-thickness wound without scar formation is a multifaceted process which depends on in situ dynamic interactions between the tissue-engineered skin substitutes and newly formed reparative tissue. However, the majority of the tissue-engineered skin substitutes used so far in full-thickness wound healing cannot mimic the natural extracellular matrix (ECM) complexity and thus are incapable of providing a suitable niche for endogenous tissue repair. Herein, we demonstrated a simple approach to fabricate porous Hybrid Extracellular Matrix Sponges (HEMS) using Placental Extracellular Matrix (pECM) and Silk Fibroin (SF) for full-thickness wound healing...
May 2, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29715466/feraheme%C3%A2-suppresses-immune-function-of-human-t-lymphocytes-through-mitochondrial-damage-and-mitoros-production
#17
Ankit Shah, Cassandra I Mankus, Alison M Vermilya, Ferri Soheilian, Jeffrey D Clogston, Marina A Dobrovolskaia
Despite attractive properties for both therapeutic and diagnostic applications, the clinical use of iron oxide nanoparticles (IONPs) is limited to iron replacement in severely anemic patient populations. While several studies have reported about the immunotoxicity of IONPs, the mechanisms of this toxicity are mostly unknown. We conducted a mechanistic investigation using an injectable form of IONP, Feraheme®. In the cultures of primary human T cells, Feraheme induced miotochondrial oxidative stress and resulted in changes in mitochondrial dynamics, architecture, and membrane potential...
April 28, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29712924/transcriptional-landscape-of-mycobacterium-tuberculosis-infection-in-macrophages
#18
Sugata Roy, Sebastian Schmeier, Bogumil Kaczkowski, Erik Arner, Tanvir Alam, Mumin Ozturk, Ousman Tamgue, Suraj P Parihar, Hideya Kawaji, Masayoshi Itoh, Timo Lassmann, Piero Carninci, Yoshihide Hayashizaki, Alistair R R Forrest, Reto Guler, Vladimir B Bajic, Frank Brombacher, Harukazu Suzuki
Mycobacterium tuberculosis (Mtb) infection reveals complex and dynamic host-pathogen interactions, leading to host protection or pathogenesis. Using a unique transcriptome technology (CAGE), we investigated the promoter-based transcriptional landscape of IFNγ (M1) or IL-4/IL-13 (M2) stimulated macrophages during Mtb infection in a time-kinetic manner. Mtb infection widely and drastically altered macrophage-specific gene expression, which is far larger than that of M1 or M2 activations. Gene Ontology enrichment analysis for Mtb-induced differentially expressed genes revealed various terms, related to host-protection and inflammation, enriched in up-regulated genes...
April 30, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29712570/il-1%C3%AE-suppresses-cltp-induced-surface-expression-of-glua1-and-actin-polymerization-via-ceramide-mediated-src-activation
#19
Liqi Tong, G Aleph Prieto, Carl W Cotman
BACKGROUND: Brain inflammation including increases in inflammatory cytokines such as IL-1β is widely believed to contribute to the pathophysiology of Alzheimer's disease. Although IL-1β-induced impairments in long-term potentiation (LTP) in acute hippocampal slices and memory functions in vivo have been well documented, the neuron-specific molecular mechanisms of IL-1β-mediated impairments of LTP and memory remain unclear. METHODS: This study uses an in vitro approach in primary hippocampal neurons to evaluate the effect of IL-1β on chemical LTP (cLTP)-induced structural plasticity and signaling...
April 30, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29707116/the-role-of-particulate-matters-on-methylation-of-ifn-%C3%AE-and-il-4-promoter-genes-in-pediatric-allergic-rhinitis
#20
Youjin Li, Zhe Mu, Hongyang Wang, Jinfen Liu, Fan Jiang
Allergic rhinitis (AR) is a chronic inflammatory disorder driven by T cell activation. How particulate matter contributes to epigenetic changes that in turn influence cytokine gene expression in CD4+ T cells remains unclear. In this study, 105 children diagnosed with AR and 90 healthy controls were recruited to explore the possible mechanism of particulate matter (PM) on the epigenetic regulation of CD4+ T IFN-γ and IL-4 promoter genes. Daily average PM10 and PM2.5 were obtained from five state-controlled monitoring stations, and activity-based dynamic exposure and personal exposure data were collected...
April 3, 2018: Oncotarget
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