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https://www.readbyqxmd.com/read/28731367/methamphetamine-causes-photoreceptor-cell-damage-through-promoting-polarization-of-macrophages-and-inducing-inflammatory-response
#1
Aihui Zhang, Laiwei Wu, Zilin Chen, Guoqiang Huang, Xiaohe Lu
Classically activated macrophages (M1) are proinflammatory effectors and closely related to the progression of neurotoxicity. As a powerful psychostimulant and addictive drug, methamphetamine (Meth) abuse could result in long-lasting abnormalities in retina. This study investigated the effect of Meth at nontoxic concentration on macrophage activation state and its resultant toxicity to photoreceptor cells. Results showed that cytotoxicity was caused by Meth on 661 W cells after coculturing with RAW264.7 macrophage...
January 1, 2017: International Journal of Toxicology
https://www.readbyqxmd.com/read/28730964/ccl2-is-modulated-by-cytokines-and-ppar-g-in-anaplastic-thyroid-cancer
#2
Silvia Martina Ferrari, Giusy Elia, Simona Piaggi, Enke Baldini, Salvatore Ulisse, Mario Miccoli, Gabriele Materazzi, Alessandro Antonelli, Poupak Fallahi
BACKGROUND AND OBJECTIVE: Chemokine (C-C motif) ligand (CCL)2, the prototype Th2 chemokine, is secreted by tumor cells, and has growth promoting effects. Whether CCL2 protumorigenic activities will be validated, then CCL2 and its receptor CCR2 may be therapeutic targets in cancer. METHODS: We tested in "primary human anaplastic thyroid carcinoma (ATC) cells" (ANA) versus "normal thyroid follicular cells" (TFC): a) CCL2 secretion basally, after IFN-g and/or TNF-a stimulation; b) PPARg activation by thiazolidinediones (TZDs), rosiglitazone or pioglitazone, on CCL2 secretion, and on proliferation and apoptosis in ANA...
July 19, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28730407/venous-thromboembolism-thrombosis-inflammation-and-immunothrombosis-for-clinicians
#3
REVIEW
Eduardo Vazquez-Garza, Carlos Jerjes-Sanchez, Aline Navarrete, Jorge Joya-Harrison, David Rodriguez
Venous thromboembolism (VTE) is a worldwide disease related with mortality, cardiovascular disability, impaired quality of life and, cause major long-term complications. Clinicians related to the acute and long-term patients care must be involved in the molecular mechanisms of thrombosis. The vessel wall and its inner lining of the endothelium are critical to the maintenance of a patent vasculature. After endothelial disruption, collagen (first line of endothelial defense) and intravascular tissue factor (second line of endothelial defense) are exposed to blood flow, starting the formation of a thrombus...
July 20, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28729853/role-of-melatonin-galanin-and-rfamide-neuropeptides-qrfp26-and-qrfp43-in-the-neuroendocrine-control-of-pancreatic-%C3%AE-cell-function
#4
REVIEW
Iacopo Gesmundo, Tania Villanova, Dana Banfi, Giacomo Gamba, Riccarda Granata
Glucose homeostasis is finely regulated by a number of hormones and peptides released mainly from the brain, gastrointestinal tract, and muscle, regulating pancreatic secretion through cellular receptors and their signal transduction cascades. The endocrine function of the pancreas is controlled by islets within the exocrine pancreatic tissue that release hormones like insulin, glucagon, somatostatin, pancreatic polypeptide, and ghrelin. Moreover, both exocrine and endocrine pancreatic functions are regulated by a variety of hormonal and neural mechanisms, such as ghrelin, glucagon-like peptide, glucose-dependent insulinotropic polypeptide, or the inhibitory peptide somatostatin...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28729832/the-role-of-microglia-in-retinal-neurodegeneration-alzheimer-s-disease-parkinson-and-glaucoma
#5
REVIEW
Ana I Ramirez, Rosa de Hoz, Elena Salobrar-Garcia, Juan J Salazar, Blanca Rojas, Daniel Ajoy, Inés López-Cuenca, Pilar Rojas, Alberto Triviño, José M Ramírez
Microglia, the immunocompetent cells of the central nervous system (CNS), act as neuropathology sensors and are neuroprotective under physiological conditions. Microglia react to injury and degeneration with immune-phenotypic and morphological changes, proliferation, migration, and inflammatory cytokine production. An uncontrolled microglial response secondary to sustained CNS damage can put neuronal survival at risk due to excessive inflammation. A neuroinflammatory response is considered among the etiological factors of the major aged-related neurodegenerative diseases of the CNS, and microglial cells are key players in these neurodegenerative lesions...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28729628/a-new-approach-for-ratiometric-in-vivo-calcium-imaging-of-microglia
#6
Bianca Brawek, Yajie Liang, Daria Savitska, Kaizhen Li, Natalie Fomin-Thunemann, Yury Kovalchuk, Elizabeta Zirdum, Johan Jakobsson, Olga Garaschuk
Microglia, resident immune cells of the brain, react to the presence of pathogens/danger signals with a large repertoire of functional responses including morphological changes, proliferation, chemotaxis, production/release of cytokines, and phagocytosis. In vitro studies suggest that many of these effector functions are Ca(2+)-dependent, but our knowledge about in vivo Ca(2+) signalling in microglia is rudimentary. This is mostly due to technical reasons, as microglia largely resisted all attempts of in vivo labelling with Ca(2+) indicators...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28729226/solanum-paniculatum-l-decreases-levels-of-inflammatory-cytokines-by-reducing-nf-%C3%AE%C2%BAb-t-bet-and-gata3-gene-expression-in-vitro
#7
Raimon Rios, Hugo Bernardino Ferreira da Silva, Norma Vilany Queiroz Carneiro, Anaque de Oliveira Pires, Tamires Cana Brasil Carneiro, Ryan Dos Santos Costa, Cintia Rodrigues Marques, Marta Santos Serafim Machado, Eudes da Silva Velozo, Telma M G da Silva, Tania M S da Silva, Adilva de Souza Conceição, Neuza Maria Alcântara-Neves, Camila Alexandrina Figueiredo
ETHNOPHARMACOLOGICAL RELEVANCE: Solanum paniculatum L., popularly known as jurubeba, is a common subtropical plant from Brazil, Paraguay, Bolivia, and Argentina, that is used in folk medicine for the treatment of anemia, gastrointestinal disorders and inflammatory conditions in general. In addition to that, an ethnobotanical survey in "Todos os Santos" Bay have pointed out S. paniculatum as an herb to treat asthma. Previous publications have shown that S. paniculatum possesses antibiotic, antioxidant and modulatory effects on gastric acid secretion; however, its anti-inflammatory potential remains unexplored...
July 17, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28729222/antiallodynic-effect-of-%C3%AE-caryophyllene-on-paclitaxel-induced-peripheral-neuropathy-in-mice
#8
Gabriela C Segat, Mariane N Manjavachi, Daiane O Matias, Giselle F Passos, Cristina Setim Freitas, Robson Costa, João B Calixto
Painful peripheral neuropathy is a common side effect of paclitaxel (PTX). The use of analgesics is an important component for management of PTX-induced peripheral neuropathy (PINP). However, currently employed analgesics have several side effects and are poorly effective. β-caryophyllene (BCP), a dietary selective CB2 agonist, has shown analgesic effect in neuropathic pain models, but its role in chemotherapy-induced neuropathic pain has not yet been investigated. Herein, we used the mouse model of PINP to show the therapeutic effects of BCP in this neuropathy...
July 17, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28725984/cytokine-expression-and-barrier-disruption-in-human-corneal-epithelial-cells-induced-by-alarmin-released-from-necrotic-cells
#9
Ken Fukuda, Waka Ishida, Yusaku Miura, Tatsuma Kishimoto, Atsuki Fukushima
PURPOSE: Dying cells release endogenous molecules known as alarmins that signal danger to surrounding tissue. We investigated the effects of necrotic cell-derived alarmins on cytokine expression and barrier function in human corneal epithelial cells. METHODS: The release of interleukin (IL)-6 and IL-8 from immortalized human corneal epithelial (HCE) cells in culture was measured with enzyme-linked immunosorbent assays. The abundance of IL-6 and 8 mRNAs was quantitated by reverse transcription and real-time polymerase chain reaction analysis...
July 19, 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28724977/therapeutic-targeting-of-hmgb1-during-experimental-sepsis-modulates-the-inflammatory-cytokine-profile-to-one-associated-with-improved-clinical-outcomes
#10
Natalie E Stevens, Marianne J Chapman, Cara K Fraser, Tim R Kuchel, John D Hayball, Kerrilyn R Diener
Sepsis remains a significant health burden and a major clinical need exists for therapeutics to dampen the excessive and uncontrolled immune activation. Nuclear protein high mobility group box protein 1 (HMGB1) is released following cell death and is a late mediator in sepsis pathogenesis. While approaches targeting HMGB1 have demonstrated reduced mortality in pre-clinical models of sepsis, the impact of HMGB1 blockade on the complex septic inflammatory milieu and the development of subsequent immunosuppression remain enigmatic...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724578/induction-of-regulatory-t-cells-and-its-regulation-with-insulin-like-growth-factor-insulin-like-growth-factor-binding-protein-4-by-human-mesenchymal-stem-cells
#11
Ippei Miyagawa, Shingo Nakayamada, Kazuhisa Nakano, Kaoru Yamagata, Kei Sakata, Kunihiro Yamaoka, Yoshiya Tanaka
Human mesenchymal stem cells (MSCs) are multipotent and exert anti-inflammatory effects, but the underlying mechanism remains to be elucidated. In the current study, we investigated the regulatory mechanism of regulatory T cell (Treg) induction through the growth factors released by human MSCs. Human naive CD4(+) T cells were stimulated with anti-CD3/28 Abs and cocultured with human MSC culture supernatant for 48 h. The proliferation and cytokine production of CD4(+) T cells and surface molecule expression on CD4(+) T cells were evaluated...
July 19, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28724573/a-single-dose-of-peripherally-infused-egfrviii-directed-car-t-cells-mediates-antigen-loss-and-induces-adaptive-resistance-in-patients-with-recurrent-glioblastoma
#12
Donald M O'Rourke, MacLean P Nasrallah, Arati Desai, Jan J Melenhorst, Keith Mansfield, Jennifer J D Morrissette, Maria Martinez-Lage, Steven Brem, Eileen Maloney, Angela Shen, Randi Isaacs, Suyash Mohan, Gabriela Plesa, Simon F Lacey, Jean-Marc Navenot, Zhaohui Zheng, Bruce L Levine, Hideho Okada, Carl H June, Jennifer L Brogdon, Marcela V Maus
We conducted a first-in-human study of intravenous delivery of a single dose of autologous T cells redirected to the epidermal growth factor receptor variant III (EGFRvIII) mutation by a chimeric antigen receptor (CAR). We report our findings on the first 10 recurrent glioblastoma (GBM) patients treated. We found that manufacturing and infusion of CAR-modified T cell (CART)-EGFRvIII cells are feasible and safe, without evidence of off-tumor toxicity or cytokine release syndrome. One patient has had residual stable disease for over 18 months of follow-up...
July 19, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28723877/human-spinal-bone-dust-as-a-potential-local-autograft-in-vitro-potent-anabolic-effect-on-human-osteoblasts
#13
Ryan Gao, Matthew Street, Mei Lin Tay, Karen E Callon, Dorit Naot, Alistair Lock, Jacob T Munro, Jillian Cornish, John Ferguson, David Musson
STUDY DESIGN: In Vitro Study. OBJECTIVE: To evaluate the effect that factors released from human posterior spinal bone dust have on primary human osteoblast growth and maturation. SUMMARY OF BACKGROUND DATA: Bone dust, created during spinal fusion surgeries has the potential to be used as an autologous bone graft by providing a source of viable autologous osteoblasts and mesenchymal stem cells with osteogenic potential. To date, no information is available on whether bone dust also provides a source of anabolic factors with the potential to enhance osteoblast proliferation and maturation, which would enhance its therapeutic potential...
July 18, 2017: Spine
https://www.readbyqxmd.com/read/28723682/release-of-danger-associated-molecular-patterns-following-chemotherapy-does-not-induce-immunoparalysis-in-leukemia-patients
#14
Kim Timmermans, Guus P Leijte, Matthijs Kox, Gert Jan Scheffer, Nicole M A Blijlevens, Peter P Pickkers
Chemotherapy may result in the release of danger-associated molecular patterns (DAMPs), which can cause immunoparalysis (deactivation of the immune system). We investigated DAMPs following chemotherapy and their relationship with markers of immunoparalysis in leukemia patients. In 6 patients with acute myeloid leukemia or myelodysplastic syndrome and 12 healthy subjects, DAMPs, cytokines, and markers of immunoparalysis were determined before and during the first week after chemotherapy initiation. In the patients, plasma levels of nuclear DNA (a marker of general DAMP release) were profoundly increased before chemotherapy and further increased 4-6 h afterwards, while the specific DAMP mitochondrial DNA showed only a trend towards increase...
July 20, 2017: Acta Haematologica
https://www.readbyqxmd.com/read/28723547/the-p2x7-receptor-in-infection-and-inflammation
#15
REVIEW
Francesco Di Virgilio, Diego Dal Ben, Alba Clara Sarti, Anna Lisa Giuliani, Simonetta Falzoni
Adenosine triphosphate (ATP) accumulates at sites of tissue injury and inflammation. Effects of extracellular ATP are mediated by plasma membrane receptors named P2 receptors (P2Rs). The P2R most involved in inflammation and immunity is the P2X7 receptor (P2X7R), expressed by virtually all cells of innate and adaptive immunity. P2X7R mediates NLRP3 inflammasome activation, cytokine and chemokine release, T lymphocyte survival and differentiation, transcription factor activation, and cell death. Ten human P2RX7 gene splice variants and several SNPs that produce complex haplotypes are known...
July 18, 2017: Immunity
https://www.readbyqxmd.com/read/28722682/activation-of-the-nrf2-are-signaling-pathway-by-probucol-contributes-to-inhibiting-inflammation-and-neuronal-apoptosis-after-spinal-cord-injury
#16
Zipeng Zhou, Chang Liu, Shurui Chen, Haosen Zhao, Kang Zhou, Wei Wang, Yajiang Yuan, Zhuo Li, Yue Guo, Zhaoliang Shen, Xifan Mei
The nuclear erythroid 2-related factor 2 (Nrf2)/antioxidant response element (ARE) signaling pathway plays an essential role in the cellular antioxidant and anti-inflammatory responses. Spinal cord injury (SCI) results in a massive release of inflammatory factors and free radicals, which seriously compromise nerve recovery and axon regeneration. In this study, we examined the efficacy of probucol on anti-inflammatory responses and functional recovery after SCI by activating the Nrf2/ARE signaling pathway. We also investigated the mechanism by which inflammation is inhibited in this process...
July 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28722681/the-role-of-toll-like-receptor-4-in-tumor-microenvironment
#17
REVIEW
Jing Li, Fan Yang, Feng Wei, Xiubao Ren
Tumors are closely related to chronic inflammation, during which there are various changes in inflammatory sites, such as immune cells infiltration, pro-inflammation cytokines production, and interaction between immune cells and tissue cells. Besides, substances, released from both tissue cells attacked by exogenous etiologies, also act on local cells. These changes induce a dynamic and complex microenvironment favorable for tumor growth, invasion, and metastasis. The toll-like receptor 4 (TLR4) is the first identified member of the toll-like receptor family that can recognize pathogen-associated molecular patterns (PAMPs) and damage-associated molecular pattern (DAMPs)...
July 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28721573/exposure-to-silver-nanoparticles-affects-viability-and-function-of-natural-killer-cells-mostly-via-the-release-of-ions
#18
Loretta Müller, Selina K Steiner, Laura Rodriguez-Lorenzo, Alke Petri-Fink, Barbara Rothen-Rutishauser, Philipp Latzin
Natural killer (NK) cells play a crucial role in linking innate and adaptive immune responses, especially during viral infections and tumor surveillance. They have two major effector functions: the killing of stressed/abnormal cells and the release of cytokines. Their activity is regulated via inhibitory and activating surface receptors. At the same time that the production and use of engineered nanoparticles is steadily increasing, the risk for exposure to silver nanoparticles (AgNPs) from consumer products or biomedical applications is growing...
July 18, 2017: Cell Biology and Toxicology
https://www.readbyqxmd.com/read/28720549/evolutionary-basis-of-a-new-approach-for-the-treatment-of-malignant-brain-tumors-from-mice-to-humans
#19
Pedro R Lowenstein, Maria G Castro
Glioma cells are one of the most aggressive and malignant tumors. Following initial surgery, and radio-chemotherapy they progress rapidly, so that patients' median survival remains under two years. They invade throughout the brain, which makes them difficult to treat, and are universally lethal. Though total resection is always attempted it is not curative. Standard of care in 2016 comprises surgical resection, radiotherapy and chemotherapy (temozolomide). Median survival is currently ~14-20months post-diagnosis though it can be higher in high complexity medical university centers, or during clinical trials...
July 15, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28720058/long-form-of-thymic-stromal-lymphopoietin-of-keratinocytes-is-induced-by-protein-allergens
#20
Yasutaka Kuroda, Takuo Yuki, Yutaka Takahashi, Hitoshi Sakaguchi, Kayoko Matsunaga, Hiroshi Itagaki
A growing body of evidence suggests that epicutaneous sensitization of protein allergens induces immediate-type hypersensitivity (IHS) following induction of Type 2 immune responses in animals and humans. Thymic stromal lymphopoietin (TSLP) derived from keratinocytes is a cytokine that can activate dendritic cells and has been implicated in development of inflammatory Type 2 helper T-cells. However, there is no direct evidence that allergens directly regulate TSLP expression in keratinocytes. This study aimed to evaluate the response of TSLP to protein allergens in cultured human keratinocytes and to identify appropriate endpoints for IHS...
December 2017: Journal of Immunotoxicology
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