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https://www.readbyqxmd.com/read/28318085/inflammatory-double-hit-model-of-temporomandibular-joint-disorder-with-elevated-ccl2-cxcl9-cxcl10-rantes-and-behavioural-hypersensitivity-in-tnfr1-r2-mice
#1
S L McIlwrath, R Nesemeier, F Ma, H S Oz, L Zhang, K N Westlund
BACKGROUND: Patients with temporomandibular joint disorders (TMD), reactive arthritis and rheumatoid arthritis often have combined etiology of hereditary and microenvironmental factors contributing to joint pain. Multiple clinical and animal studies indicate 'double-hit' inflammatory insults can cause chronic inflammation. The first inflammatory insult primes the immune system and subsequent insults elicit amplified responses. The present 'double hit' study produced a chronic orofacial pain model in mice with genetic deletion of both TNFα receptors (TNFR1/R2-/-), investigating the main nociceptive signalling pathways in comparisons to wild type mice...
March 20, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28296959/estradiol-alters-the-immune-responsiveness-of-cervical-epithelial-cells-stimulated-with-ligands-of-toll-like-receptors-2-and-4
#2
Behnia S Lashkari, Dilly O C Anumba
The mucosa of the female reproductive tract plays a pivotal role in host defence. Pregnancy must alter immunological mechanisms at this interface to protect the conceptus. We sought to determine how estradiol (E2) alters the immune-responsiveness of cervical epithelial cells to ligand stimulation of Toll-like receptor (TLR)-2 and -4. Human ectocervical epithelial cells (HECECs) were cultured and co-incubated with two concentrations of E2 and peptidoglycan (PGN) or lipopolysaccharide (LPS) over durations that ranged between 10 minutes and 18 hours...
2017: PloS One
https://www.readbyqxmd.com/read/28295901/high-aldehyde-dehydrogenase-activity-identifies-a-subset-of-human-mesenchymal-stromal-cells-with-vascular-regenerative-potential
#3
Stephen E Sherman, Miljan Kuljanin, Tyler T Cooper, David M Putman, Gilles A Lajoie, David A Hess
During culture expansion, multipotent mesenchymal stromal cells (MSC) differentially express aldehyde dehydrogenase (ALDH), an intracellular detoxification enzyme that protects long-lived cells against oxidative stress. Thus, MSC selection based on ALDH-activity may be used to reduce heterogeneity and distinguish MSC subsets with improved regenerative potency. After expansion of human bone marrow-derived MSC, cell progeny were purified based on low versus high ALDH-activity by fluorescence activated cell sorting, and each subset was compared for multipotent stromal and pro-vascular regenerative functions...
March 15, 2017: Stem Cells
https://www.readbyqxmd.com/read/28289333/influence-of-vaginal-lactoferrin-administration-on-amniotic-fluid-cytokines-and-its-role-against-inflammatory-complications-of-pregnancy
#4
Martina Maritati, Manola Comar, Nunzia Zanotta, Silva Seraceni, Alessandro Trentini, Fabrizio Corazza, Fortunato Vesce, Carlo Contini
BACKGROUND: An altered amniotic cytokine profile has been reported in inflammatory pregnancy complications with a leading role for IL-6, a marker of the foetal systemic inflammatory response. Up to this date there is no exhaustive information neither on the foetal cytokine balance nor on the best method for its modulation. We aimed to evaluate the influence of vaginal lactoferrin administration on amniotic fluid concentration of 47 cytokines, chemokines and growth factors. METHODS: Sixty women undergoing genetic amniocentesis were enrolled in an open-label clinical trial...
2017: Journal of Inflammation
https://www.readbyqxmd.com/read/28286777/effect-of-human-myotubes-derived-media-on-glucose-stimulated-insulin-secretion
#5
Maria L Mizgier, Luis R Cataldo, Juan Gutierrez, José L Santos, Mariana Casas, Paola Llanos, Ariel E Contreras-Ferrat, Cedric Moro, Karim Bouzakri, Jose E Galgani
Fasting to postprandial transition requires a tight adjustment of insulin secretion to its demand, so tissue (e.g., skeletal muscle) glucose supply is assured while hypo-/hyperglycemia are prevented. High muscle glucose disposal after meals is pivotal for adapting to increased glycemia and might drive insulin secretion through muscle-released factors (e.g., myokines). We hypothesized that insulin influences myokine secretion and then increases glucose-stimulated insulin secretion (GSIS). In conditioned media from human myotubes incubated with/without insulin (100 nmol/L) for 24 h, myokines were qualitatively and quantitatively characterized using an antibody-based array and ELISA-based technology, respectively...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28282868/a-pronounced-inflammatory-activity-characterizes-the-early-fracture-healing-phase-in-immunologically-restricted-patients
#6
Paula Hoff, Timo Gaber, Cindy Strehl, Manuela Jakstadt, Holger Hoff, Katharina Schmidt-Bleek, Annemarie Lang, Eric Röhner, Dörte Huscher, Georg Matziolis, Gerd-Rüdiger Burmester, Gerhard Schmidmaier, Carsten Perka, Georg N Duda, Frank Buttgereit
Immunologically restricted patients such as those with autoimmune diseases or malignancies often suffer from delayed or insufficient fracture healing. In human fracture hematomas and the surrounding bone marrow obtained from immunologically restricted patients, we analyzed the initial inflammatory phase on cellular and humoral level via flow cytometry and multiplex suspension array. Compared with controls, we demonstrated higher numbers of immune cells like monocytes/macrophages, natural killer T (NKT) cells, and activated T helper cells within the fracture hematomas and/or the surrounding bone marrow...
March 8, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28275769/immunomodulatory-effect-of-protease-hydrolysates-from-ovotransferrin
#7
Lin Liu, Mingsheng Xu, Yonggang Tu, Huaying Du, Yulan Zhou, Gaoxiang Zhu
Proteins and bioactive peptides in avian egg white exert diverse biological activities. This study is designed to investigate the effect of protease hydrolysates from ovotransferrin (OVT) on bone marrow-derived dendritic cells (BMDCs) maturation. The results show that OVT-derived pepsin hydrolysate effectively inhibits lipopolysaccharide (LPS)-induced BMDCs maturation by reducing the expression levels of MHC-II, CD83, CD86 and the production of TNF-α, IL-12p70, and RANTES, but increases the production of IL-10...
March 9, 2017: Food & Function
https://www.readbyqxmd.com/read/28265273/new-data-on-human-macrophages-polarization-by-hymenolepis-diminuta-tapeworm-an-in-vitro-study
#8
Anna Zawistowska-Deniziak, Katarzyna Basałaj, Barbara Strojny, Daniel Młocicki
Helminths and their products can suppress the host immune response to escape host defense mechanisms and establish chronic infections. Current studies indicate that macrophages play a key role in the immune response to pathogen invasion. They can be polarized into two distinct phenotypes: M1 and M2. The present paper examines the impact of the adult Hymenolepis diminuta (HD) tapeworm and its excretory/secretory products (ESP) on THP-1 macrophages. Monocytes were differentiated into macrophages and cultured with a living parasite or its ESP...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28259510/comparison-of-inflammatory-cytokine-release-from-nasal-epithelial-cells-of-non-atopic-non-rhinitic-allergic-rhinitic-and-polyp-subjects-and-effects-of-diesel-exhaust-particles-in-vitro
#9
A B Ozturk, R Bayraktar, B Gogebakan, S Mumbuc, H Bayram
BACKGROUND: Although studies have reported an association between air pollutants and increased allergic airway diseases, such as allergic rhinitis and nasal polyposis, the underlying mechanisms are not fully understood. A limited number of studies have suggested that diesel exhaust particles (DEP) play a role in atopy and the pathogenesis of allergic upper airway diseases. The aim of this study was to investigate the effect of DEP on inflammatory cytokine release, and mRNA expression of transcription factors such as JNK and NF-β in primary nasal epithelial cells (NECs), in vitro...
March 2, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28254558/early-serum-biomarker-networks-in-infants-with-distinct-retinochoroidal-lesion-status-of-congenital-toxoplasmosis
#10
Thádia Evelyn de Araújo, Jordana Grazziela Coelho-Dos-Reis, Samantha Ribeiro Béla, Ana Carolina Aguiar Vasconcelos Carneiro, Anderson Silva Machado, Ludmila Melo Cardoso, Ágata Lopes Ribeiro, Michelle Hallais França Dias, Gláucia Manzan Queiroz Andrade, Daniel Vitor Vasconcelos-Santos, José Nélio Januário, Andréa Teixeira-Carvalho, Ricardo Wagner Almeida Vitor, Eloisa Amália Vieira Ferro, Olindo Assis Martins-Filho
The present study characterized the early changes in the serum chemokines/cytokine signatures and networks in infants with congenital-toxoplasmosis/(TOXO) as compared to non-infected-controls/(NI). TOXO were subgrouped according to the retinochoroidal lesion status as no-lesion/(NL), active-lesion/(ARL), active/cicatricial-lesion/(ACRL) and cicatricial-lesion/(CRL). The results showed that TOXO display prominent chemokine production mediated by IL-8/CXCL8, MIG/CXCL9, IP-10/CXCL10 and RANTES/CCL5. Additionally, TOXO is accompanied by mixed proinflammatory/regulatory cytokine pattern mediated by IL-6, IFN-γ, IL-4, IL-5 and IL-10...
February 28, 2017: Cytokine
https://www.readbyqxmd.com/read/28253931/zika-virus-infection-of-cellular-components-of-the-blood-retinal-barriers-implications-for-viral-associated-congenital-ocular-disease
#11
Tracoyia Roach, Donald J Alcendor
BACKGROUND: Ocular abnormalities present in microcephalic infants with presumed Zika virus (ZIKV) congenital disease includes focal pigment mottling of the retina, chorioretinal atrophy, optic nerve abnormalities, and lens dislocation. Target cells in the ocular compartment for ZIKV infectivity are unknown. The cellular response of ocular cells to ZIKV infection has not been described. Mechanisms for viral dissemination in the ocular compartment of ZIKV-infected infants and adults have not been reported...
March 3, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28245911/effect-of-chondroitin-sulphate-on-synovitis-of-knee-osteoarthritic-patients
#12
Laura Tío, Cristobal Orellana, Selene Pérez-García, Laura Piqueras, Paula Escudero, Yasmina Juarranz, Natalia Garcia-Giralt, Francisco Montañés, Aina Farran, Pere Benito, Rosa P Gomariz, María-Jesús Sanz, Jordi Monfort
OBJECTIVE: To evaluate by ultrasonography the effect of chondroitin sulfate (CS) on synovitis in patients with knee osteoarthritis (KOA). To collaborate in the understanding of the biochemical mechanisms involved in the synovial inflammation process. METHODS: Randomized, single-blind, controlled trial involving 70 patients with primary KOA treated for 6 months with CS or acetaminophen (ACT). Evaluation of KOA status at baseline, 6 weeks, 3 and 6 months included: ultrasonography to assess synovitis (following the OMERACT expertise group definition), visual analogue scale and Lequesne index to measure pain and function, and ELISA to quantify inflammatory mediators in serum and synovial fluid...
February 25, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28240747/antibodies-against-nonstructural-protein-1-protect-mice-from-dengue-virus-induced-mast-cell-activation
#13
Ya-Ting Chu, Shu-Wen Wan, Yu-Chang Chang, Chien-Kuo Lee, Betty A Wu-Hsieh, Robert Anderson, Yee-Shin Lin
Dengue virus (DENV) infection causes dengue fever, dengue hemorrhagic fever (DHF), and dengue shock syndrome (DSS). DHF/DSS patients have been reported to have increased levels of urinary histamine, chymase, and tryptase, which are major granule-associated mediators from mast cells. Previous studies also showed that DENV-infected human mast cells induce production of proinflammatory cytokines and chemokines, suggesting a role played by mast cells in vascular perturbation as well as leukocyte recruitment. In this study, we show that DENV but not UV-inactivated DENV enhanced degranulation of mast cells and production of chemokines (MCP-1, RANTES, and IP-10) in a mouse model...
February 27, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28238827/rhizoma-smilacis-glabrae-inhibits-pathogen-induced-upper-genital-tract-inflammation-in-rats-through-suppression-of-nf-%C3%AE%C2%BAb-pathway
#14
Wei Zou, Hougang Zhou, Jian Hu, Li Zhang, Qiue Tang, Xiaoke Wen, Zuoqi Xiao, Wei Wang
ETHNOPHARMACOLOGICAL RELEVANCE: Rhizoma Smilacis Glabrae (RSG) is traditionally used to treat gynecological disease, which is simply recorded in Chinese Pharmacopoeia. However, whether it has effect on upper genital tract inflammation (UGTI) is unclear. AIM OF THE STUDY: To evaluate the pharmacological effect of RSG on UGTI in rats and analyze its phytochemistry characteristics. MATERIALS AND METHODS: The substances in RSG extract was qualified by LC-Q-TOF-MS method, and 11 substances were further quantified...
February 23, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28235615/polysaccharide-purified-from-ganoderma-atrum-induced-activation-and-maturation-of-murine-myeloid-derived-dendritic-cells
#15
Hui Wang, Qiang Yu, Shao-Ping Nie, Quan-Dan Xiang, Ming-Ming Zhao, Shi-Yu Liu, Ming-Yong Xie, Shun-Qi Wang
Ganoderma atrum (G. atrum), a member of the genus Ganoderma, is an edible and medicinal fungus. In this study, we investigated the direct and indirect effects of G. atrum polysaccharide (PSG-1) on dendritic cells (DCs). Firstly, flow cytometric and ELISA analysis showed that PSG-1 increased cell surface molecule expression of MHC-II, CD80 and CD86, and enhanced the production of IL-12 p70, IL-6, IL-10, RANTES, MIP-1α and MCP-1 in DCs. PSG-1-treated DCs promoted the proliferation of splenic T lymphocyte of mouse in mixed lymphocyte reaction...
February 21, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28228554/association-of-lyn-kinase-with-membrane-rafts-determines-its-negative-influence-on-lps-induced-signaling
#16
Kinga Borzęcka-Solarz, Justyna Dembińska, Aneta Hromada-Judycka, Gabriela Traczyk, Anna Ciesielska, Ewelina Ziemlińska, Anna Świątkowska, Katarzyna Kwiatkowska
Lipopolysaccharide (LPS) is the component of Gram-negative bacteria which activates Toll-like receptor 4 (TLR4) to trigger pro-inflammatory responses. We examined the involvement of Lyn tyrosine kinase in TLR4 signaling of macrophages, distinguishing its catalytic activity and intermolecular interactions. For this, a series of Lyn-GFP constructs bearing point mutations in particular domains of Lyn were overexpressed in RAW264 macrophage-like cells or murine peritoneal macrophages, and their influence on LPS-induced responses was analyzed...
February 22, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28223942/ameloblastin-peptides-modulates-the-osteogenic-capacity-of-human-mesenchymal-stem-cells
#17
Øystein Stakkestad, Ståle P Lyngstadaas, Jiri Vondrasek, Jan O Gordeladze, Janne Elin Reseland
During amelogenesis the extracellular enamel matrix protein AMBN is quickly processed into 17 kDa (N-terminus) and 23 kDa (C-terminus) fragments. In particular, alternatively spliced regions derived by exon 5/6 within the N-terminus region are known to be critical in biomineralization. Human mesenchymal stem cells (hMSC) also express and secrete AMBN, but it is unclear if this expression has effects on the hMSC themselves. If, as suggested from previous findings, AMBN act as a signaling molecule, such effects could influence hMSC growth and differentiation, as well as promoting the secretion of other signaling proteins like cytokines and chemokines...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28220122/nf-%C3%AE%C2%BAb-links-tlr2-and-par1-to-soluble-immunomodulator-factor-secretion-in-human-platelets
#18
Pauline Damien, Fabrice Cognasse, Bernard Payrastre, Sherry L Spinelli, Neil Blumberg, Charles-Antoine Arthaud, Marie-Ange Eyraud, Richard P Phipps, Archibald McNicol, Bruno Pozzetto, Olivier Garraud, Hind Hamzeh-Cognasse
The primary toll-like receptor (TLR)-mediated immune cell response pathway common for all TLRs is MyD88-dependent activation of NF-κB, a seminal transcription factor for many chemokines and cytokines. Remarkably, anucleate platelets express the NF-κB machinery, whose role in platelets remains poorly understood. Here, we investigated the contribution of NF-κB in the release of cytokines and serotonin by human platelets, following selective stimulation of TLR2 and protease activated receptor 1 (PAR1), a classical and non-classical pattern-recognition receptor, respectively, able to participate to the innate immune system...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28209068/urinary-cytokines-chemokines-after-magnetic-resonance-guided-high-intensity-focused-ultrasound-for-palliative-treatment-of-painful-bone-metastases
#19
Ahmad Bushehri, Gregory Czarnota, Liying Zhang, Kullervo Hynynen, Yuexi Huang, Michael Chan, William Chu, Kristopher Dennis, Charles Mougenot, Jennifer Coccagna, Arjun Sahgal, Edward Chow, Carlo DeAngelis
BACKGROUND: Pain is experienced by 50-75% of patients with bone metastases, representing a major source of morbidity amongst cancer patients. Magnetic resonance-guided high intensity focused ultrasound (MRgHIFU) is a new, non-invasive, outpatient treatment modality for painful bone metastases. The aim of this study was to analyze urinary cytokines/chemokines pattern after MRgHIFU for palliative treatment of painful bone metastases. The findings were compared to the cytokines/chemokines pattern post single 8 Gy fraction radiation from our previous study...
January 2017: Annals of Palliative Medicine
https://www.readbyqxmd.com/read/28207939/chemokine-in-inflamed-periodontal-tissues-activates-healthy-periodontal-ligament-stem-cell-migration
#20
Jung-Seok Lee, Jong-Bin Lee, Jae-Kook Cha, Eun-Young Choi, So-Yon Park, Kyoo-Sung Cho, Chang-Sung Kim
AIM: The present study aimed to characterize the expression pattern of chemokines obtained from inflamed periodontal defects and to determine the characteristics of human periodontal-ligament stem cells (hPDLSCs) migrated by each specific chemokine. MATERIALS AND METHODS: Both inflamed and healthy periodontal tissues were obtained from periodontitis patients (n=11), and the chemokine expression levels were analyzed. The periodontal-tissue-specific chemokines were applied to healthy hPDLSCs from extracted teeth (n=3), with FGF-2 acting as a positive control...
February 16, 2017: Journal of Clinical Periodontology
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