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https://www.readbyqxmd.com/read/29777902/chemical-characterization-and-cerebroprotective-effect-of-methanolic-root-extract-of-colebrookea-oppositifolia-in-rats
#1
Gollapalle Lakshminarayanashastry Viswanatha, Marikunte V Venkataranganna, Nunna Bheema Lingeswara Prasad, Shylaja Hanumanthappa
ETHNOPHARMACOLOGICAL RELEVANCE: Colebrookea oppositifolia Smith is one of the extensively used plants to treat neurological conditions such as epilepsy by the various ethnic communities in sub-Himalayan regions of India such as Bhoxa, Tharu and nomadic Gujjars. AIM OF THE STUDY: This study was conducted to evaluate the cerebroprotective effect of C. oppositifolia methanolic root (MeCO) extract in Wistar rats. MATERIALS AND METHODS: The MeCO was characterized for total phenolic content and later subjected for detailed liquid chromatography-mass spectrometry analysis...
May 16, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29777223/card9-s12n-facilitates-the-production-of-il-5-by-alveolar-macrophages-for-the-induction-of-type-2-immune-responses
#2
Xia Xu, Jin-Fu Xu, Guoxing Zheng, Hai-Wen Lu, Jie-Lin Duan, Wei Rui, Jian-Hong Guan, Li-Qing Cheng, Dan-Dan Yang, Ming-Chao Wang, Quan-Zhen Lv, Jian-Xiong Li, Xueqiang Zhao, Chun-Xia Chen, Peng Shi, Xin-Ming Jia, Xin Lin
The adaptor CARD9 functions downstream of C-type lectin receptors (CLRs) for the sensing of microbial infection, which leads to responses by the TH 1 and TH 17 subsets of helper T cells. The single-nucleotide polymorphism rs4077515 at CARD9 in the human genome, which results in the substitution S12N (CARD9S12N ), is associated with several autoimmune diseases. However, the function of CARD9S12N has remained unknown. Here we generated CARD9S12N knock-in mice and found that CARD9S12N facilitated the induction of type 2 immune responses after engagement of CLRs...
May 18, 2018: Nature Immunology
https://www.readbyqxmd.com/read/29775497/inflammatory-cytokines-and-peripheral-mediators-in-the-pathophysiology-of-pruritus-in-cutaneous-t-cell-lymphoma
#3
REVIEW
Daniel J Lewis, Simo Huang, Madeleine Duvic
Cutaneous T-cell lymphoma (CTCL) includes a diverse group of neoplasms, including mycosis fungoides and Sézary syndrome. One of the earliest and most common symptoms of CTCL is pruritus, which affects up to 88% of patients. The severity of pruritus can range from mild to very debilitating, producing tremendous discomfort and a significant decrease in quality of life. Patients with advanced disease, in particular, may experience a more chronic, intractable pruritus. However, the underlying mechanism of pruritus in CTCL remains unknown...
May 18, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29775441/-the-biological-function-and-significance-of-il-35-in-the-pathogenesis-of-atherosclerosis
#4
EDITORIAL
Mateusz Staciwa, Marlena Broncel
The imbalance of anti-inflammatory /pro- inflammatory cytokines plays an important role in the progression of atherosclerosis. Interleukin 35 (IL-35) is a novel member of the IL-12 family, consisting of an EBVinduced gene 3 (EBI3) subunit and a P35 subunit. IL-35 is an immunesuppressive cytokine mainly produced by regulatory T cells. Accumulating evidence suggests that IL-35 may represent a target for antiatherosclerotic therapy based on its several anti-inflammatory features. This review provide a brief overview of IL-35 biology and the role of IL-35 in the atherosclerosis, autoimmune disease and cancers...
April 23, 2018: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29774633/a-simple-and-cost-efficient-adherent-culture-platform-for-human-gastric-primary-cells-as-an-in-vitro-model-for-helicobacter-pylori-infection
#5
Samaneh Saberi, Behshad Pournasr, Zahra Farzaneh, Maryam Esmaeili, Mahmoud Eshagh Hosseini, Hossein Baharvand, Marjan Mohammadi
BACKGROUND: Most two- dimensional in vitro models for studying host- H. pylori interactions rely on tumor-derived cell lines, which harbor malignant alterations. The recent development of human gastric organoids has overcome this limitation and provides a highly sophisticated, yet costly, short-term model for H. pylori infection, with restricted use in low-budget centers. METHOD: Tissue specimens from upper, middle, and lower stomachs of H. pylori-negative volunteers were collectively dispersed and cultured on mouse embryonic fibroblast (MEF) or collagen-coated plates...
May 17, 2018: Helicobacter
https://www.readbyqxmd.com/read/29774028/nlrp3-inflammasome-and-caspase-1-11-pathway-orchestrate-different-outcomes-in-the-host-protection-against-trypanosoma-cruzi-acute-infection
#6
Augusto F Paroli, Patricia V Gonzalez, Cintia Díaz-Luján, Luisina I Onofrio, Alfredo Arocena, Roxana C Cano, Eugenio A Carrera-Silva, Susana Gea
Infection with protozoan parasite Trypanosoma cruzi results in activation of nucleotide-binding domain and leucine-rich repeat containing receptors (NLRs). NLR activation leads to inflammasome formation, the activation of caspase-1, and the subsequent cleavage of IL-1β and IL-18. Considering that inflammasome activation and IL-1β induction by macrophages are key players for an appropriate T cell response, we investigated the relevance of NLR pyrin domain-containing 3 (NLRP3) and caspase-1/11 to elucidate their roles in the induction of different T cell phenotypes and the relationship with parasite load and hepatic inflammation during T...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29773643/the-transcription-factor-bhlhe40-is-a-switch-of-inflammatory-versus-antiinflammatory-th1-cell-fate-determination
#7
Fang Yu, Suveena Sharma, Dragana Jankovic, Rama Krishna Gurram, Pan Su, Gangqing Hu, Rao Li, Sadiye Rieder, Keji Zhao, Bing Sun, Jinfang Zhu
Type 1 T helper (Th1) cells play a critical role in host defense against intracellular pathogens and in autoimmune diseases by producing a key inflammatory cytokine interferon (IFN)-γ; some Th1 cells can also be antiinflammatory through producing IL-10. However, the molecular switch for regulating the differentiation of inflammatory and antiinflammatory Th1 cells is still elusive. Here, we show that Bhlhe40 -deficient CD4 Th1 cells produced less IFN-γ but substantially more IL-10 than wild-type Th1 cells both in vitro and in vivo...
May 17, 2018: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29773544/25-hydroxyvitamin-d-3-1%C3%AE-hydroxylase-and-multiple-cytokine-producing-diffuse-large-b-cell-lymphoma
#8
Shoko Nakayama, Mitsuhiro Matsuda
No abstract text is available yet for this article.
May 17, 2018: Blood
https://www.readbyqxmd.com/read/29772261/maternal-immune-activation-with-staphylococcal-enterotoxin-a-produces-unique-behavioral-changes-in-c57bl-6-mouse-offspring
#9
Ruthy Glass, Sara Norton, Nicholas Fox, Alexander W Kusnecov
Stimulation of the immune system during pregnancy, known as maternal immune activation (MIA), can cause long-lasting neurobiological and behavioral changes in the offspring. This phenomenon has been implicated in the etiology of developmental psychiatric disorders, such as autism and schizophrenia. Much of this evidence is predicated on animal models using bacterial agents such as LPS and/or viral mimics such as Poly I:C, both of which act through toll-like receptors. However, fewer studies have examined the role of direct activation of maternal T-cells during pregnancy using microbial agents...
May 14, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29772063/cytokine-production-by-human-neutrophils-revisiting-the-dark-side-of-the-moon
#10
REVIEW
Nicola Tamassia, Francisco Bianchetto-Aguilera, Fabio Arruda-Silva, Elisa Gardiman, Sara Gasperini, Federica Calzetti, Marco A Cassatella
Polymorphonuclear neutrophils are the most numerous leukocytes present in human blood, and function as crucial players in innate immune responses. Neutrophils are indispensable for the defence towards microbes, as they effectively counter them by releasing toxic enzymes, by synthetizing reactive oxygen species and by producing inflammatory mediators. Interestingly, recent findings have highlighted an important role of neutrophils also as promoters of the resolution of inflammation process, indicating that their biological functions go well beyond simple pathogen killing...
May 17, 2018: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29771925/in-vitro-and-in-vivo-biological-performance-of-porous-ti-alloys-prepared-by-powder-metallurgy
#11
Renata Falchete do Prado, Gabriela Campos Esteves, Evelyn Luzia De Souza Santos, Daiane Acácia Griti Bueno, Carlos Alberto Alves Cairo, Luis Gustavo Oliveira De Vasconcellos, Renata Silveira Sagnori, Fernanda Bastos Pereira Tessarin, Felipe Eduardo Oliveira, Luciane Dias De Oliveira, Maria Fernanda Lima Villaça-Carvalho, Vinicius André Rodrigues Henriques, Yasmin Rodarte Carvalho, Luana Marotta Reis De Vasconcellos
Titanium (Ti) and Ti-6 Aluminium-4 Vanadium alloys are the most common materials in implants composition but β type alloys are promising biomaterials because they present better mechanical properties. Besides the composition of biomaterial, many factors influence the performance of the biomaterial. For example, porous surface may modify the functional cellular response and accelerate osseointegration. This paper presents in vitro and in vivo evaluations of powder metallurgy-processed porous samples composed by different titanium alloys and pure Ti, aiming to show their potential for biomedical applications...
2018: PloS One
https://www.readbyqxmd.com/read/29771921/mosquito-saliva-alone-has-profound-effects-on-the-human-immune-system
#12
Megan B Vogt, Anismrita Lahon, Ravi P Arya, Alexander R Kneubehl, Jennifer L Spencer Clinton, Silke Paust, Rebecca Rico-Hesse
Mosquito saliva is a very complex concoction of >100 proteins, many of which have unknown functions. The effects of mosquito saliva proteins injected into our skin during blood feeding have been studied mainly in mouse models of injection or biting, with many of these systems producing results that may not be relevant to human disease. Here, we describe the numerous effects that mosquito bites have on human immune cells in mice engrafted with human hematopoietic stem cells. We used flow cytometry and multiplex cytokine bead array assays, with detailed statistical analyses, to detect small but significant variations in immune cell functions after 4 mosquitoes fed on humanized mice footpads...
May 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29770701/mk2-mediates-macrophage-activation-and-acute-lung-injury-by-regulating-let-7e-mirna
#13
Yaxian Wu, Huiqiong He, Yunhe Ding, Sirui Liu, Depeng Zhang, Jun Wang, Hongchao Jiang, Dan Zhang, Lei Sun, Richard D Ye, Feng Qian
MAPK-activated protein kinase 2 (MK2) plays a critical role in the development of inflammation. However, the modulatory mechanisms in macrophage activation and acute lung injury (ALI) haven't been completely defined. Here, we reported that MK2 deficient mice (MK2-/-) protected against sepsis-induced ALI. In response to lipopolysaccharide (LPS) challenge, MK2-/- mice and myeloid cell-specific MK2 conditional knockout mice (MK2Lyz2-KO) exhibited attenuated inflammatory response, especially producing fewer amounts of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and macrophage inflammatory protein 2 (MIP-2)...
May 17, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29770468/toll-like-receptor-signalling-induces-the-expression-of-serum-amyloid-a-in-epidermal-keratinocytes-and-dermal-fibroblasts
#14
S Morizane, A Kajita, K Mizuno, T Takiguchi, K Iwatsuki
BACKGROUND: Toll-like receptors (TLRs) play critical roles in innate immune response by sensing pathogen- or damage-associated molecular patterns. Epidermal keratinocytes and dermal fibroblasts also produce proinflammatory cytokines and chemokines under stimulation with TLR ligands. Serum amyloid A (SAA) is an essential factor in the pathogenesis of secondary amyloidosis, and also has immunomodulatory functions. SAA are produced mainly by hepatocytes but also by a variety of cells, including immune cells, endothelial cells, synoviocytes, and epidermal keratinocytes...
May 16, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29770133/peripheral-blood-stem-cell-mobilization-in-healthy-donors-by-granulocyte-colony-stimulating-factor-causes-preferential-mobilization-of-lymphocyte-subsets
#15
Guro Kristin Melve, Elisabeth Ersvaer, Geir Egil Eide, Einar K Kristoffersen, Øystein Bruserud
Background: Allogeneic hematopoietic stem cell transplantation is associated with a high risk of immune-mediated post-transplant complications. Graft depletion of immunocompetent cell subsets is regarded as a possible strategy to reduce this risk without reducing antileukemic immune reactivity. Study design and methods: We investigated the effect of hematopoietic stem cell mobilization with granulocyte colony-stimulating factor (G-CSF) on peripheral blood and stem cell graft levels of various T, B, and NK cell subsets in healthy donors...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29769201/in-vitro-priming-of-adoptively-transferred-t-cells-with-a-ror%C3%AE-agonist-confers-durable-memory-and-stemness-in-vivo
#16
Xiao Hu, Kinga Majchrzak, Xikui Liu, Megan M Wyatt, Chauncey Spooner, Jacques Moisan, Weiping Zou, Laura L Carter, Chrystal M Paulos
Adoptive T cell transfer therapy is an FDA-approved treatment for leukemia that relies on the ex vivo expansion and re-infusion of a patient's immune cells, which can be engineered with a chimeric antigen receptor (CAR) for more efficient tumor recognition. Type 17 T cells, controlled transcriptionally by RORγ, have been reported to mediate potent anti-tumor effects superior to those observed with conventionally expanded T cells. Here we demonstrate that addition of a synthetic, small molecule RORγ agonist during ex vivo expansion potentiates the anti-tumor activity of human Th17 and Tc17 cells redirected with a CAR...
May 16, 2018: Cancer Research
https://www.readbyqxmd.com/read/29768655/let-7e-inhibits-tnf-%C3%AE-expression-by-targeting-the-methyl-transferase-ezh2-in-denv2-infected-thp-1-cells
#17
Yingke Zhang, Qianqian Zhang, Lian Gui, Yan Cai, Xiaohong Deng, Cheukfai Li, Qi Guo, Xiaoshun He, Junqi Huang
Tumor necrosis factor α (TNFα), an important inflammatory cytokine, is associated with dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS), a severe pathological manifestation of dengue virus (DENV) infection. However, the regulatory mechanism of microRNA on TNFα is currently unknown. Our study showed that the TNFα expression increased immediately and then later decreased, while a marked increase for the miRNA let-7e was detected in dengue virus type 2 (DENV2)-infected peripheral blood mononuclear cells (PBMCs)...
May 16, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29768034/staphylococcus-aureus-induces-mucosal-type-2-immune-response-via-epithelial-cell-derived-cytokines
#18
Feng Lan, Nan Zhang, Gabriele Holtappels, Natalie De Ruyck, Olga Krysko, Koen Van Crombruggen, Harald Braun, Sebastian L Johnston, Nikos G Papadopoulos, Luo Zhang, Claus Bachert
RATIONALE: Chronic rhinosinusitis with nasal polyps is characterized by a T helper cell 2-skewed upper airway inflammation. Mucosal Staphylococcus aureus colonization is found in the majority of nasal polyps patients. Staphylococcus aureus is known to induce type 2 cytokine release via enterotoxins. OBJECTIVES: We investigated the impact of non-enterotoxin producing Staphylococcus aureus on type 2 cytokine release. METHODS: Thymic stromal lymphopoietin, interleukin-33 and type 2 cytokines were assessed in a human mucosal tissue model upon Staphylococcus aureus infection...
May 16, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29766731/-current-and-prospective-biologics-and-small-molecules-in-the-treatment-of-inflammatory-bowel-diseases
#19
Milan Buc
Crohns disease (CD) and ulcerative colitis (UC) belong to chronic inflammatory bowel diseases, which are induced by autoimmune processes. While CD is characterized by over-activity of Th1, ILC1, and MAIT cells, UC is mediated by exaggerated activities of Th2 and ILC2 cells and cytokines they produce. Knowledge of the pathogenesis enabled a rational therapy based mostly on biologics and small molecules. TNF is the principal proinflammatory cytokine in both diseases. Anti-TNF monoclonal antibodies, mostly infliximab or adalimumab were therefore introduced to their treatment...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29766204/adiponectin-administration-alleviates-dss-induced-colonic-inflammation-in-caco-2-cells-and-mice
#20
Qin Zhao, Yang Liu, Lei Tan, Liyong Yan, Xiuli Zuo
BACKGROUND: Adiponectin, a protein hormone produced by adipose tissues, exhibits anti-inflammatory functions in various models. This study was investigated the effects of adiponectin on dextran sodium sulfate (DSS)-colonic injury, inflammation, apoptosis, and intestinal barrier dysfunction in Caco-2 cell and mice. MATERIALS AND METHODS: The results showed that DSS caused inflammatory response and intestinal barrier dysfunction in vitro and in vivo. Adiponectin injection alleviated colonic injury and rectal bleeding in mice...
May 15, 2018: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
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