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https://www.readbyqxmd.com/read/28822080/soluble-epoxide-hydrolase-inhibition-attenuates-mptp-induced-neurotoxicity-in-the-nigrostriatal-dopaminergic-system-involvement-of-%C3%AE-synuclein-aggregation-and-er-stress
#1
Hui-Ju Huang, Yi-Ting Wang, Hui-Ching Lin, Yi-Hsuan Lee, Anya Maan-Yuh Lin
Soluble epoxide hydrolase (sEH) is widely expressed in the mammalian brain and possesses dual enzymatic activities, including C-terminal epoxide hydrolase (C-EH) which degrades epoxyeicosatrienoic acid (EET), a beneficial arachidonic acid metabolite. In the present study, the neuroprotective effect of sEH inhibition on 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced neurodegeneration of nigrostriatal dopaminergic system was investigated using genetic and pharmacological approaches. MPTP (15 mg/kg) was intraperitoneally injected in sEH knockout (KO) mice and C57BL/6J mice as wild-type (WT) mice...
August 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28818719/green-approach-for-one-pot-synthesis-of-silver-nanorod-using-cellulose-nanocrystal-and-their-cytotoxicity-and-antibacterial-assessment
#2
Th I Shaheen, Amr Fouda
Herein, this research addresses an innovative approach for one-pot synthesis of highly stabilized silver nanorods in powder form at concentration as high as feasible to be proposed in large-scale production via cellulose nanocrystals (CNC). For the first time, CNC without any surface modification in the presence of alkali is acting as both reducing and stabilizing agent for assembling of Ag nanorods. Extraction of CNC from cotton is carried out as per to acid hydrolysis technique. Thorough assessments of Ag nanorods formation, structural and morphological characteristics of Ag nanorods were investigated by making use of UV-vis spectroscopy, TEM, DLS, AFM and X-ray diffraction(XRD) analysis...
August 14, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28816516/vibrio-vulnificus-vvha-induces-th1-and-tfh-cells-to-proliferate-against-vibrio-vulnificus-in-a-mouse-model-of-infection
#3
Ming-Yi Wang, Xiao-Fei Liu, Jun Xia, Yu Li, Jian-Li Geng, Cheng-Jin Hu
AIM: To characterize the roles of VvhA in host's acquired immune response to Vibrio vulnificus infection. MATERIALS & METHODS: The recombinant VvhA fusion protein was used to immunize mice and the anti-VvhA polyclonal antibody was produced in vivo for prophylactic and therapeutic efficacy assay. The roles of VvhA in T helper (Th) cells differentiation were analyzed by vvhA-deleted mutant during the early phase of infection, while the ratio of Th2 and T follicular helper (Tfh) cells were examined in VvhA immunization...
August 17, 2017: Future Microbiology
https://www.readbyqxmd.com/read/28816231/molecular-mechanisms-of-the-analgesic-action-of-wu-tou-decoction-on-neuropathic-pain-in-mice-revealed-using-microarray-and-network-analysis
#4
Yan-Qiong Zhang, Chao Wang, Qiu-Yan Guo, Chun-Yan Zhu, Chen Yan, Dan-Ni Sun, Qiong-Hong Xu, Na Lin
Wu-tou Decoction (WTD) is a classic herbal formula in traditional Chinese medicine for the treatment of joint diseases, neuropathic pain (NP) and inflammatory pain. In this study we investigated whether WTD produced analgesic action in a mouse spinal nerve ligation (SNL) model and elucidated the underlying molecular mechanisms. Mice were subjected to SNL and orally treated with WTD (3.15, 6.30 or 12.60 g·kg(-1)·d(-1)) for 21 d. SNL induced mechanical hyperalgesia and heat hyperalgesia characterized by rapid and persistent pain hypersensitivity...
August 17, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28815719/cytokine-profiling-of-mcf-7-cell-line-2d-progressive-3d-and-3d-revert-cultures
#5
Aishwarya Subramaniyan, Maddaly Ravi
Cancer cytokines are known to mediate several complex cancer cell physiologies. Also, cancer cells themselves are known to secrete cytokines whose expressions and net inducible results are controlled by a variety of factors. We profiled a few cytokines secreted by 2D, 3D aggregates and the 3DRs of MCF-7 cell line at various time points. Several cytokines were seen more expressed by 3D cultures on the 4(th) day and IL-10 peaked on the day 1 of 3D cultures while TNF-α level peaked on the 7(th) day. α-Defensin, SDF-7 and TGF-β also showed markedly higher levels...
August 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28811467/the-mtorc1-4e-bp-eif4e-axis-controls-de-novo-bcl6-protein-synthesis-in-t-cells-and-systemic-autoimmunity
#6
Woelsung Yi, Sanjay Gupta, Edd Ricker, Michela Manni, Rolf Jessberger, Yurii Chinenov, Henrik Molina, Alessandra B Pernis
Post-transcriptional modifications can control protein abundance, but the extent to which these alterations contribute to the expression of T helper (TH) lineage-defining factors is unknown. Tight regulation of Bcl6 expression, an essential transcription factor for T follicular helper (TFH) cells, is critical as aberrant TFH cell expansion is associated with autoimmune diseases, such as systemic lupus erythematosus (SLE). Here we show that lack of the SLE risk variant Def6 results in deregulation of Bcl6 protein synthesis in T cells as a result of enhanced activation of the mTORC1-4E-BP-eIF4E axis, secondary to aberrant assembly of a raptor-p62-TRAF6 complex...
August 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28810629/inhibition-of-microrna-34a-ameliorates-murine-collagen-induced-arthritis
#7
Qiujie Dang, Fan Yang, Hongwei Lei, Xin Liu, Minglu Yan, He Huang, Xuemei Fan, Yang Li
Rheumatoid arthritis (RA) is one of the most frequently occurring autoimmne diseases, with symptoms including synovium hyperplasia, immune disorder, cartilage damage and bone resorption. It has previously been demonstrated that microRNA-34a (miR-34a) may participate in cell apoptosis, immune activation and bone metabolism, therefore the present study investigated the effects of miR-34a on RA. Collagen-induced arthritic (CIA) mice were employed as a murine model of experimental arthritis, and it was demonstrated that the level of miR-34a in the spleens, lymph nodes and synovium was increased in the CIA mice compared with normal DBA/1j mice...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28807939/prc2-mediated-transcriptomic-alterations-at-the-embryonic-stage-govern-tumorigenesis-and-clinical-outcome-in-mycn-driven-neuroblastoma
#8
Shoma Tsubota, Satoshi Kishida, Teppei Shimamura, Miki Ohira, Satoshi Yamashita, Dongliang Cao, Shinichi Kiyonari, Toshikazu Ushijima, Kenji Kadomatsu
Pediatric cancers such as neuroblastoma are thought to involve a dysregulation of embryonic development. However, it has been difficult to identify the critical events that trigger tumorigenesis and differentiate them from normal development. In this study, we report the establishment of a spheroid culture method that enriches early-stage tumor cells from TH-MYCN mice, a preclinical model of neuroblastoma. Using this method, we found that tumorigenic cells were evident as early as day E13.5 during embryo development, when the MYC and PRC2 transcriptomes were significantly altered...
August 14, 2017: Cancer Research
https://www.readbyqxmd.com/read/28805939/molecular-and-cellular-discoveries-in-inflammatory-dermatoses
#9
REVIEW
V Soumelis
It was no earlier than 1986 that T helper (Th)1 and Th2 cells were described for the first time, opening the field of lymphocyte diversity and the investigation of the physiopathology of inflammatory diseases such as atopic dermatitis and psoriasis. Since that time, much research has been carried out showing a very complex communication network leading to inflammatory responses. Nowadays, understanding the cellular and molecular components of the inflammatory network and of the different crosstalks not only for groups of diseases but also for the individual patient is mandatory for developing and personalizing treatments...
September 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28805262/mesenchymal-stem-cells-attenuate-liver-fibrosis-by-suppressing-th17-cells
#10
Neda Milosavljevic, Marina Gazdic, Bojana Simovic Markovic, Aleksandar Arsenijevic, Jasmin Nurkovic, Zana Dolicanin, Nemanja Jovicic, Ilija Jeftic, Valentin Djonov, Nebojsa Arsenijevic, Miodrag L Lukic, Vladislav Volarevic
This study investigates molecular and cellular mechanisms involved in mesenchymal stem cell (MSCs)-mediated modulation of IL-17 signaling during liver fibrosis. Mice received CCl4 (1μL/g intraperitoneally) twice/week for 1 month. MSCs (1x10(6) ), or MSC-conditioned medium (MSC-CM) were intravenously injected 24h after CCl4 and on every 7(th) day. Liver fibrosis was determined by macroscopic examination, histological analysis, Sirius red staining and RT-PCR. Serum levels of cytokines, IDO and kynurenine were determined by ELISA...
August 14, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28804955/3m-052-as-an-adjuvant-for-a-plga-microparticle-based-leishmania-donovani-recombinant-protein-vaccine
#11
Qian Wang, Meagan A Barry, Christopher A Seid, Elissa M Hudspeth, C Patrick McAtee, Michael J Heffernan
It is believed that an effective vaccine against leishmaniasis will require a T helper type 1 (TH 1) immune response. In this study, we investigated the adjuvanticity of the Toll-like receptor (TLR) 7/8 agonist 3M-052 in combination with the Leishmania donovani 36-kDa nucleoside hydrolase recombinant protein antigen (NH36). NH36 and 3M-052 were encapsulated in separate batches of poly(lactic-co-glycolic acid) (PLGA) microparticles (MPs). The loading efficiency for NH36 was 83% and for 3M-052 was above 95%. In vitro stimulation of bone marrow-derived dendritic cells, measured by IL-12 secretion, demonstrated that 3M-052 (free or MP-formulated) had a concentration-dependent immunostimulatory effect with an optimum concentration of 2 µg/mL...
August 14, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28801931/immunomodulatory-effects-of-adipose-stromal-vascular-fraction-cells-promote-alternative-activation-macrophages-to-repair-tissue-damage
#12
Annie C Bowles, Rachel M Wise, Brittany Y Gerstein, Robert C Thomas, Roberto Ogelman, Isabella Febbo, Bruce A Bunnell
The pathogenesis of many diseases is driven by the interactions between helper T (TH ) cells and macrophages. The phenotypes of these cells are a functional dichotomy that are persuaded according to the surrounding milieu. In both multiple sclerosis (MS) and the experimental autoimmune encephalomyelitis (EAE) model, TH 1 and TH 17 cells propagate autoimmune signaling and inflammation in the peripheral lymphoid tissues. In turn, this pro-inflammatory repertoire promotes the classical activation, formerly the M1-type, macrophages...
August 12, 2017: Stem Cells
https://www.readbyqxmd.com/read/28801784/prior-repeated-stress-attenuates-cold-induced-immunomodulation-associated-with-browning-in-mesenteric-fat-of-rats
#13
P Vargovic, M Laukova, J Ukropec, G Manz, R Kvetnansky
Continuous exposure to cold leads to activation of adaptive thermogenesis in brown adipose tissue but also to induction of brown/beige cell phenotype in white adipose tissue. The aim of this work was to investigate whether prior exposure to immobilization (IMO) stress may affect immune response associated with adipocyte "browning" in mesenteric adipose tissue (mWAT). In the first experiment, Sprague-Dawley rats were exposed to acute (3 h) or prolonged (7 days) cold exposure (4 ± 1 °C). 7-day cold stimulated gene expression of uncoupling protein 1 and other "browning"-associated factors...
August 11, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28798236/the-unintended-mitochondrial-uncoupling-effects-of-the-fda-approved-anti-helminth-drug-nitazoxanide-mitigates-experimental-parkinsonism-in-mice
#14
Niharika Amireddy, Srinivas N Puttapaka, Ravali L Vinnakota, Halley G Ravuri, Swaroop Thonda, Shasi V Kalivendi
Mitochondria plays a primary role in the pathophysiology of Parkinson's disease (PD) and small molecules that counteract the initial stages of disease may offer therapeutic benefit. In this regard, we have examined whether the off-target effects of the FDA approved anti-helminth drug, nitazoxanide (NTZ) on mitochondrial respiration could possess any therapeutic potential for PD. Results indicate that MPP(+) induced loss in oxygen consumption rate (OCR) and ATP production by mitochondria were ameliorated by NTZ in real-time by virtue of its mild-uncoupling effect...
August 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28796897/hookworm-excretory-secretory-products-modulate-immune-responses-to-heterologous-and-species-specific-antigens
#15
Nicholas Diliani, Blaise Dondji
Approximately one billion people are currently infected with hookworm. Despite its high prevalence and the concomitant immune suppression seen in infected individuals, little research has been done on the mechanism of immunosuppression by hookworm. Our study focused on characterizing mechanisms utilized by hookworm to suppress the host immune response. Splenocytes and draining lymph node cells from mice injected with hookworm excretory/secretory (ES) proteins showed decreased proliferation in response to both heterologous and species-specific antigens while also having increased nitric oxide secretion...
August 10, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28795560/pdi-derivative-through-fine-tuning-molecular-structure-for-fullerene-free-organic-solar-cells
#16
Hua Sun, Xin Song, Jian Xie, Po Sun, Peiyang Gu, Chang Mei Liu, Fei Chen, Qi Chun Zhang, Zhi-Kuan Chen, Wei Huang
A perylenediimide (PDI)-based small molecular (SM) acceptor with both an extended π-conjugation and a three dimensional structure concurrently is critical for achieving high performance PDI-based fullerene-free organic solar cells (OSCs). In this work, we designed and synthesized a novel PDI-based SM acceptor possessing both characteristics by fusing PDI units with a spiro core of 4,4'-spirobi[cyclopenta[2,1-b;3,4-b']dithiophene(SCPDT) through the -position of the thiophene rings. An enhanced strong absorption in the range of 350-520 nm and arisen LUMO energy level of FSP was observed, compared with previous reported acceptor SCPDT-PDI4, in which the PDI units and SCPDT are not fused...
August 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28793364/melatonin-reduces-inflammatory-response-in-peripheral-t-helper-lymphocytes-from-relapsing-remitting-multiple-sclerosis-patients
#17
Nuria Álvarez-Sánchez, Ivan Cruz-Chamorro, María Díaz-Sánchez, Helia Sarmiento-Soto, Pablo Medrano-Campillo, Alicia Martínez-López, Patricia Judith Lardone, Juan Miguel Guerrero, Antonio Carrillo-Vico
Multiple sclerosis (MS) is a neuroinflammatory disease of the central nervous system in which the immune system plays a central role. In particular, effector populations such as T helper (Th) 1, Th9, Th17 and Th22 cells are involved in disease development, whereas T regulatory cells (Tregs) are associated with the resolution of the disease. Melatonin levels are impaired in MS patients, and exogenous melatonin ameliorates the disease in MS animal models by modulating the Th1/Th17/Treg responses and also improves quality of life and several symptoms in MS patients...
August 9, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28790535/morphological-changes-in-blood-cells-after-implantation-of-titanium-and-plastic-clips-in-the-neurocranium-experimental-study-on-dogs
#18
Muhamed Katica, Mirza Celebicic, Nedzad Gradascevic, Muamer Obhodzas, Enra Suljić, Muhamed Ocuz, Samir Delibegovic
INTRODUCTION: Various studies confirm the biocompatibility and efficacy of clips for certain target tissues, but without any comparative analysis of hematological parameters. Therefore, we conducted a study to assess the possible association of the implantation of titanium and plastic clips in the neurocranium with possible morphological changes in the blood cells of experimental animals. MATERIALS AND METHODS: As a control, the peripheral blood smears were taken before surgery from 12 adult dogs that were divided into two experimental groups...
April 2017: Medical Archives
https://www.readbyqxmd.com/read/28790231/inflammation-immunity-and-hypertension
#19
Arisya Agita, M Thaha Alsagaff
The immune system, inflammation and hypertension are related to each other. Innate and adaptive immunity system triggers an inflammatory process, in which blood pressure may increase, stimulating organ damage. Cells in innate immune system produce ROS, such as superoxide and hydrogen peroxide, which aimed at killing pathogens. Long-term inflammation process increases ROS production, causing oxidative stress which leads to endothelial dysfunction. Endothelial function is to regulate blood vessel tone and structure...
April 2017: Acta Medica Indonesiana
https://www.readbyqxmd.com/read/28781969/immunomodulatory-effects-of-taiwanese-neolitsea-species-on-th1-and-th2-functionality
#20
Yin-Hua Cheng, Ying-Chi Lin, Ih-Sheng Chen, Sian-De Liu, Jih-Heng Li, Chia-Chi Wang
Neolitsea species, medicinal plants belonging to Lauraceae, contain rich alkaloids, steroids, sesquiterpenoids, and triterpenoids which possess antimicrobial, antioxidant, and anti-inflammatory bioactivities. However, species differences in the immunomodulatory effects and evidence pertaining to the effects of Neolitsea species on adaptive immunity are scarce. This study aimed to evaluate the immunomodulatory properties of ten Taiwanese Neolitsea plants on T helper (Th) cell functionality, especially Th1 and Th2...
2017: Journal of Immunology Research
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