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Eun-Ju Choi, Trishna Debnath, Yujiao Tang, Young-Bae Ryu, Sang-Ho Moon, Eun-Kyung Kim
BACKGROUND: Moringa oleifera (M. oleifera) is widely cultivated in tropical and subtropical regions and has been used as a vegetable and in traditional medicine. In this study, the anti-atopic dermatitis activity of the ethanol extract of M. oleifera leaf was investigated in vitro and in vivo. METHODS: For the in vitro study, HaCaT human keratinocytes were used for cytokines and MAPKinase assay. In the in vivo study, M. oleifera leaf ethanolic extract (MO) was topically applied to BALB/c mice with Dermatophagoides farinae extract (DFE; house dust mite extract)- and 2,4-dinitrochlorobenzene (DNCB)-induced atopic dermatitis (AD)...
October 12, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Matthew N Davies, Helene Pere, Iris Bosschem, Freddy Haesebrouck, Bram Flahou, Eric Tartour, Darren R Flower, David F Tough, Jagadeesh Bayry
Adjuvants are substances that boost the protective immune response to vaccine antigens. The majority of known adjuvants have been identified through the use of empirical approaches. Our aim was to identify novel adjuvants with well-defined cellular and molecular mechanisms by combining a knowledge of immunoregulatory mechanisms with an in silico approach. CD4(+)CD25(+)FoxP3(+) regulatory T cells (Tregs) inhibit the protective immune responses to vaccines by suppressing the activation of antigen presenting cells such as dendritic cells (DCs)...
2017: Methods in Molecular Biology
Anikó Kapitány, Gabriella Béke, Georgina Nagy, Quang Minh Doan-Xuan, Zsolt Bacso, Krisztián Gáspár, Gábor Boros, Zsolt Dajnoki, Tamás Bíró, Éva Rajnavölgyi, Andrea Szegedi
Skin dendritic cells of patients with atopic dermatitis (AD) are well characterized, but less is known about their peripheral blood precursors. The aim of this study was to investigate the phenotypic features and chemokine production of myeloid pre-dendritic cells of patients with AD ex vivo and after stimulation with Staphylococcus enterotoxin B and thymic stromal lymphopoietin, representing an AD-like microenvironment. The expression of cell surface markers was measured by flow cytometry, while chemokine production was monitored with chemokine antibody array and confirmed by enzyme-linked immunoassays...
October 4, 2016: Acta Dermato-venereologica
Guilherme de Paula Costa, Laís Roquete Lopes, Maria Cláudia da Silva, Aline Luciano Horta, Washington Martins Pontes, Cristiane M Milanezi, Paulo Marcos da Mata Guedes, Wanderson Geraldo de Lima, Richard Schulz, João Santana da Silva, Andre Talvani
Chemokines (CKs) and chemokine receptors (CKR) promote leukocyte recruitment into cardiac tissue infected by the Trypanosoma cruzi. This study investigated the long-term treatment with subantimicrobial doses of doxycycline (Dox) in association, or not, with benznidazole (Bz) on the expression of CK and CKR in cardiac tissue. Thirty mongrel dogs were infected, or not, with the Berenice-78 strain of T. cruzi and grouped according their treatments: (i) two months after infection, Dox (50 mg/kg) 2x/day for 12 months; (ii) nine months after infection, Bz (3,5 mg/kg) 2x/day for 60 days; (iii) Dox + Bz; and (iv) vehicle...
2016: Mediators of Inflammation
Weina Zhang, Lechuang Chen, Kai Ma, Yahui Zhao, Xianghe Liu, Yu Wang, Mei Liu, Shufang Liang, Hongxia Zhu, Ningzhi Xu
Epidermal growth factor receptor (EGFR) is a target of colon cancer therapy, but the effects of this therapy on the tumor microenvironment remain poorly understood. Our in vivo studies showed that cetuximab, an anti-EGFR monoclonal antibody, effectively inhibited AOM/DSS-induced, colitis-associated tumorigenesis, downregulated M2-related markers, and decreased F4/80+/CD206+ macrophage populations. Treatment with conditioned medium of colon cancer cells increased macrophage expression of the M2-related markers arginase-1 (Arg1), CCL17, CCL22, IL-10 and IL-4...
September 23, 2016: Oncotarget
Hitokazu Esaki, Patrick M Brunner, Yael Renert-Yuval, Tali Czarnowicki, Thy Huynh, Gary Tran, Sarah Lyon, Giselle Rodriguez, Supriya Immaneni, Donald B Johnson, Bruce Bauer, Judilyn Fuentes-Duculan, Xiuzhong Zheng, Xiangyu Peng, Yeriel D Estrada, Hui Xu, Christina de Guzman Strong, Mayte Suárez-Fariñas, James G Krueger, Amy S Paller, Emma Guttman-Yassky
BACKGROUND: Atopic dermatitis (AD) affects 15% to 25% of children and 4% to 7% of adults. Paradigm-shifting discoveries about AD have been based on adult biomarkers, reflecting decades of disease activity, although 85% of cases begin by 5 years. Blood phenotyping shows only TH2 skewing in patients with early-onset pediatric AD, but alterations in early pediatric skin lesions are unknown, limiting advancement of targeted therapies. OBJECTIVE: We sought to characterize the early pediatric AD skin phenotype and its differences from pediatric control subjects and adults with AD...
September 15, 2016: Journal of Allergy and Clinical Immunology
Inge Kepert, Juliano Fonseca, Constanze Müller, Katrin Milger, Kerstin Hochwind, Matea Kostric, Maria Fedoseeva, Caspar Ohnmacht, Stefan Dehmel, Petra Nathan, Sabine Bartel, Oliver Eickelberg, Michael Schloter, Anton Hartmann, Philippe Schmitt-Kopplin, Susanne Krauss-Etschmann
BACKGROUND: Chronic immune diseases (CIDs), such as asthma, are highly prevalent. Currently available pharmaceuticals improve symptoms, but cannot cure the disease. This prompted demands for alternatives to pharmaceuticals such as probiotics for prevention of allergic disease. However, clinical trials have given inconsistent results. This is at least partly explained by the highly complex crosstalk among probiotic bacteria, the host´s microbiota, and immune cells. The identification of a bioactive substance from probiotic bacteria could circumvent this difficulty...
September 23, 2016: Journal of Allergy and Clinical Immunology
Suzi Hong, Ellen E Lee, Averria Sirkin Martin, Benchawanna Soontornniyomkij, Virawudh Soontornniyomkij, Cristian L Achim, Chase Reuter, Michael R Irwin, Lisa T Eyler, Dilip V Jeste
Chemokines are promising biomarkers of immune activation and inflammation, but evidence for chemokine abnormalities in schizophrenia and their relationship to clinical factors remains inconclusive. We aimed to understand chemokine-related diagnostic differences and clinical correlates using a comprehensive panel and studying a large, well-characterized sample of adults with and without schizophrenia. We studied 134 outpatients with schizophrenia or schizoaffective disorder and 112 healthy comparison (HC) individuals, 26 to 65years of age...
September 17, 2016: Schizophrenia Research
In Jun Yang, Dong-Ung Lee, Heung Mook Shin
Valencene (VAL) isolated from Cyperus rotundus possesses various biological effects such as antiallergic and antimelanogenesis activity. We investigated the effect of VAL on atopic dermatitis (AD) skin lesions and their molecular mechanisms. We topically applied VAL to 1-chloro-2,4-dinitrobenzene (DNCB) sensitized NC/Nga mice. Modified scoring atopic dermatitis index, scratching behavior, and histological/immunohistochemical staining were used to monitor disease severity. RT-PCR, western blotting, and enzyme-linked immunosorbent assay were used to determine the level of IgE, proinflammatory cytokines/chemokines production, and skin barrier proteins expression...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
Ramakrishna Edukulla, Kira Lee Rehn, Bo Liu, Jaclyn W McAlees, Gurjit K Hershey, Yui Hsi Wang, Ian Lewkowich, Andrew W Lindsley
INTRODUCTION: Ceramide is the central substrate of sphingolipid metabolism and plays a key role in cellular signal transduction pathways, regulating apoptosis, differentiation, and chemotaxis. Alterations in airway ceramide levels are observed in multiple pulmonary diseases and recent human genetic association studies have linked dysregulation of sphingolipid regulatory genes with asthma pathogenesis. METHODS: Utilizing myriocin, a potent inhibitor of sphingolipid synthesis, we evaluated the immune regulatory role of de novo ceramide generation in vitro and in vivo...
September 2016: Immunity, Inflammation and Disease
Wouter J Plattel, Zainab N D Alsada, Gustaaf W van Imhoff, Arjan Diepstra, Anke van den Berg, Lydia Visser
Soluble Galectin-1 (sGal-1, also termed LGALS1), soluble CD163 (sCD163) and soluble CD30 (sCD30) have been reported to be elevated in plasma or serum of patients with classical Hodgkin lymphoma (cHL). We aimed to determine the clinical utility of these biomarkers for evaluation of treatment response compared to thymus and activation regulated chemokine (TARC, also termed CCL17). Plasma or serum samples were prospectively collected among 103 newly diagnosed cHL patients before and after treatment. Levels of sGal-1, sCD163, sCD30 and TARC were correlated with disease characteristics and clinical treatment response...
September 9, 2016: British Journal of Haematology
Ju-Hye Yang, Jae-Myung Yoo, Won-Kyung Cho, Jin Yeul Ma
BACKGROUND: Sanguisorbae Radix (SR) is a well-known herbal medicine used to treat inflammatory disease and skin burns in Asia. In addition, it is used to treat many types of allergic skin diseases, including urticaria, eczema, and allergic dermatitis. SR has been reported to exhibit anti-wrinkle, anti-oxidant, and anti-contact dermatitis bioactivities. METHODS: In this study, we investigated the mechanism underlying the anti-inflammatory effects of SR water extract (WSR) using human keratinocyte (HaCaT) cells and BALB/c mouse bone marrow-derived mast cells (BMMCs)...
2016: BMC Complementary and Alternative Medicine
Sjors A Koppes, Richard Brans, Suzana Ljubojevic Hadzavdic, Monique H W Frings-Dresen, Thomas Rustemeyer, Sanja Kezic
OBJECTIVE: The aim of this study was to explore the tape strip sampling technique in the assessment of stratum corneum levels of inflammatory mediators in a clinical trial setting. METHODS: Thirty-eight inflammatory mediators were analyzed by a multiplex-assay in the stratum corneum, collected by adhesive tapes before and after 6 weeks of therapy, in mild and moderate atopic dermatitis (AD) patients (n = 90). Treatment was a ceramide- and magnesium-containing emollient...
2016: International Archives of Allergy and Immunology
Shirin Elhaik Goldman, Itay Moshkovits, Avishai Shemesh, Ayelet Filiba, Yevgeny Tsirulsky, Elena Vronov, Marilou Shagan, Ron N Apte, D Aniel Benharroch, Danielle Karo-Atar, Ron Dagan, Ariel Munitz, Yaffa Mizrachi Nebenzahl, Angel Porgador
The function of NCR1 was studied in a model of experimental asthma, classified as a type 1 hypersensitivity reaction, in mice. IgE levels were significantly increased in the serum of OVA immunized NCR1 deficient (NCR1gfp/gfp) mice in comparison to OVA immunized wild type (NCR1+/+) and adjuvant immunized mice. Histological analysis of OVA immunized NCR1gfp/gfp mice revealed no preservation of the lung structure and overwhelming peribronchial and perivascular granulocytes together with mononuclear cells infiltration...
2016: PloS One
Jayanth Suryanarayanan Shankaranarayanan, Jagat R Kanwar, Afrah Jalil Abd Al-Juhaishi, Rupinder K Kanwar
Advanced, metastatic, castration resistant and chemo-resistant prostate cancer has triggered change in the drug development landscape against prostate cancer. Bovine lactoferrin (bLf) is currently attracting attention in clinics for its anti-cancer properties and proven safety profile. bLf internalises into cancer cells via receptor mediated endocytosis, boosts immunity and complements chemotherapy. We employed bLf as an excellent functional carrier protein for delivering doxorubicin (Dox) into DU145 cells, CD44+/EpCAM+ double positive enriched DU145 3D prostaspheres and drug resistant ADR1000-DU145 cells, thus circumventing Dox efflux, to overcome chemo-resistance...
2016: Scientific Reports
Kavitha Kothur, Louise Wienholt, Shekeeb S Mohammad, Esther M Tantsis, Sekhar Pillai, Philip N Britton, Cheryl A Jones, Rajeshwar R Angiti, Elizabeth H Barnes, Timothy Schlub, Sushil Bandodkar, Fabienne Brilot, Russell C Dale
BACKGROUND: Despite the discovery of CSF and serum diagnostic autoantibodies in autoimmune encephalitis, there are still very limited CSF biomarkers for diagnostic and monitoring purposes in children with inflammatory or autoimmune brain disease. The cause of encephalitis is unknown in up to a third of encephalitis cohorts, and it is important to differentiate infective from autoimmune encephalitis given the therapeutic implications. AIM: To study CSF cytokines and chemokines as diagnostic biomarkers of active neuroinflammation, and assess their role in differentiating demyelinating, autoimmune, and viral encephalitis...
2016: PloS One
Yan-Hong Yan, Fei Yu, Chang Zeng, Li-Hua Cao, Zhou Zhang, Qing-An Xu
AIM: CCL19 and its receptor CCR7 are essential molecules for facilitating the trafficking of mature dendritic cells (DCs) and helping to establish a microenvironment in lymphoid tissues to initiate primary immune responses, whereas CCL17 is required in the CCR7-CCL19-dependent migration of DCs. In this study we examined whether co-administration of CCL17 and CCL19 could enhance the immunogenicity of an anti-caries DNA vaccine, pCIA-P, in rodents. METHODS: Plasmids encoding CCL17 (pCCL17/VAX) and CCL19 (pCCL19/VAX) were constructed...
September 2016: Acta Pharmacologica Sinica
Dan Li, Mingyue Duan, Yuan Feng, Lingling Geng, Xiaoqing Li, Wanggang Zhang
Monocytes from patients with systemic juvenile idiopathic arthritis (SJIA) have both features of classical activated M1 and alternatively activated M2 macrophages. An increasing number of studies have indicated that microRNAs (miRNAs) are critical regulators of monocyte polarization. Here, we focused on miR-146a expression in SJIA and investigated the function of miR-146a in monocyte polarization. We found that miR-146a expression was highly up-regulated in SJIA monocytes and correlated with the systemic features...
September 2016: Molecular Immunology
Adrian Achuthan, Andrew D Cook, Ming-Chin Lee, Reem Saleh, Hsu-Wei Khiew, Melody W N Chang, Cynthia Louis, Andrew J Fleetwood, Derek C Lacey, Anne D Christensen, Ashlee T Frye, Pui Yeng Lam, Hitoshi Kusano, Koji Nomura, Nancy Steiner, Irmgard Förster, Stephen L Nutt, Moshe Olshansky, Stephen J Turner, John A Hamilton
Data from preclinical and clinical studies have demonstrated that granulocyte macrophage colony-stimulating factor (GM-CSF) can function as a key proinflammatory cytokine. However, therapies that directly target GM-CSF function could lead to undesirable side effects, creating a need to delineate downstream pathways and mediators. In this work, we provide evidence that GM-CSF drives CCL17 production by acting through an IFN regulatory factor 4-dependent (IRF4-dependent) pathway in human monocytes, murine macrophages, and mice in vivo...
September 1, 2016: Journal of Clinical Investigation
Judith Alferink, Sabine Specht, Hannah Arends, Beatrix Schumak, Kim Schmidt, Christina Ruland, Ramona Lundt, Andrea Kemter, Andrea Dlugos, Janina M Kuepper, Karola Poppensieker, Matthias Findeiss, Önder Albayram, David-M Otte, Janine Marazzi, Jürg Gertsch, Irmgard Förster, Wolfgang Maier, Stefanie Scheu, Achim Hoerauf, Andreas Zimmer
Cerebral malaria is a severe and often fatal complication of Plasmodium falciparum infection. It is characterized by parasite sequestration, a breakdown of the blood-brain barrier, and a strong inflammation in the brain. We investigated the role of the cannabinoid receptor 2 (CB2), an important modulator of neuroinflammatory responses, in experimental cerebral malaria (ECM). Strikingly, mice with a deletion of the CB2-encoding gene (Cnr2(-/-)) inoculated with Plasmodium berghei ANKA erythrocytes exhibited enhanced survival and a diminished blood-brain barrier disruption...
September 9, 2016: Journal of Biological Chemistry
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