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https://www.readbyqxmd.com/read/28046055/role-of-interleukin-17a-on-the-chemotactic-responses-to-ccl7-in-a-murine-allergic-rhinitis-model
#1
Yu-Lian Zhang, Doo Hee Han, Dong-Young Kim, Chul Hee Lee, Chae-Seo Rhee
BACKGROUND: The proinflammatory cytokine interleukin (IL)-17A is associated with eosinophil infiltration into the nasal mucosa in a mouse model of ovalbumin-induced allergic rhinitis. Chemotaxis of eosinophils is mediated primarily through C-C chemokine receptor type 3 (CCR3). However, the mechanism underlying the IL-17A-mediated enhancement of eosinophil recruitment via chemoattractants/chemokines remains unknown. OBJECTIVES: In this study, we assessed the contribution of IL-17A to eosinophil-related inflammation via the CCL7/CCR3 pathway in experimental allergic rhinitis...
2017: PloS One
https://www.readbyqxmd.com/read/28042950/ccl24-contributes-to-hcc-malignancy-via-rhob-vegfa-vegfr2-angiogenesis-pathway-and-indicates-poor-prognosis
#2
Lei Jin, Wei-Ren Liu, Meng-Xin Tian, Xi-Fei Jiang, Han Wang, Pei-Yun Zhou, Zhen-Bin Ding, Yuan-Fei Peng, Zhi Dai, Shuang-Jian Qiu, Jian Zhou, Jia Fan, Ying-Hong Shi
CCL24 is one chemotactic factor extensively studied in airway inflammation and colorectal cancer but less studied in hepatocellular carcinoma (HCC) retrospectively. So HCC tissue microarray (TMA) was used to estimate relationship between CCL24 and prognosis, cell experiments were conducted to study its influence for HCC cell biological behavior. CCL24 was injected to nude mice to monitor tumor formation and pulmonary metastasis; qRT-PCR, western blot and Immunohistochemistry were used to explore potential mechanism...
December 22, 2016: Oncotarget
https://www.readbyqxmd.com/read/28035394/downregulation-of-mouse-ccr3-by-lentiviral-shrna-inhibits-proliferation-and-induces-apoptosis-of-mouse-eosinophils
#3
Xin-Hua Zhu, Bing Liao, Yi Xu, Ke Liu, Yun Huang, Quan-Long Huang, Yue-Hui Liu
RNA interference has been considered as an effective gene silencing method in basic and preclinical investigations. The aims of the present study were to construct a lentiviral vector expressing a short hairpin RNA (shRNA) targeting the murine CC chemokine receptor 3 (mCCR3), and to investigate its effects on the proliferation and apoptosis of mouse eosinophils. A recombinant lentiviral vector expressing four fragments of mouse CCR3 shRNA (pLVX‑mCCR3‑1+2+3+4‑shRNA) was constructed using subcloning techniques...
February 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27992791/catalpol-alleviates-ovalbumin-induced-asthma-in-mice-reduced-eosinophil-infiltration-in-the-lung
#4
Yanyan Chen, Yongzheng Zhang, Mingyuan Xu, Junqi Luan, Shengai Piao, Shuang Chi, Hai Wang
BACKGROUND: Radix Rehmanniae Preparata is a traditional Chinese herbal medicine used to treat asthma, and catalpol is one of the main active ingredients in this herb. In the present study, the effects of catalpol on asthma and the underlying mechanism were explored. METHODS: Mice with ovalbumin (OVA)-induced asthma were given 5 or 10mg/kg catalpol from Day 15 to Day 28 (intraperitoneal injection). Histopathologic changes were detected by Hematoxylin and Eosin staining and Periodic Acid Schiff staining...
February 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/27989103/detecting-positive-selection-of-korean-native-goat-populations-using-next-generation-sequencing
#5
Wonseok Lee, Sojin Ahn, Mengistie Taye, Samsun Sung, Hyun-Jeong Lee, Seoae Cho, Heebal Kim
Goats (Capra hircus) are one of the oldest species of domesticated animals. Native Korean goats are a particularly interesting group, as they are indigenous to the area and were raised in the Korean peninsula almost 2,000 years ago. Although they have a small body size and produce low volumes of milk and meat, they are quite resistant to lumbar paralysis. Our study aimed to reveal the distinct genetic features and patterns of selection in native Korean goats by comparing the genomes of native Korean goat and crossbred goat populations...
December 2016: Molecules and Cells
https://www.readbyqxmd.com/read/27956527/role-of-ccl7-in-type-i-hypersensitivity-reactions-in-murine-experimental-allergic-conjunctivitis
#6
Chuan-Hui Kuo, Andrea M Collins, Douglas R Boettner, YanFen Yang, Santa J Ono
Molecules that are necessary for ocular hypersensitivity reactions include the receptors CCR1 and CCR3; CCL7 is a ligand for these receptors. Therefore, we explored the role of CCL7 in mast cell activity and motility in vitro and investigated the requirement for CCL7 in a murine model of IgE-mediated allergic conjunctivitis. For mast cells treated with IgE and Ag, the presence of CCL7 synergistically enhanced degranulation and calcium influx. CCL7 also induced chemotaxis in mast cells. CCL7-deficient bone marrow-derived mast cells showed decreased degranulation following IgE and Ag treatment compared with wild-type bone marrow-derived mast cells, but there was no difference in degranulation when cells were activated via an IgE-independent pathway...
January 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27918096/back-cover-story-eur-j-immunol-12-16
#7
(no author information available yet)
Our back cover features an H&E stained biopsy section from a patient with eosinophilic myocarditis. Countless heart-infiltrating eosinophils with bright pink granules and bi-lobed nuclei are visible between large, striated cardiomyocytes. In addition, T cells and macrophages are infiltrating the heart. This image relates to the article by Diny et al. (pp. 2749-2760), in which the authors analyze the pathway required for eosinophil trafficking to the heart by examining heart biopsies from myocarditis patients and a murine myocarditis model...
December 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27909304/transmission-of-multiple-hiv-1-subtype-c-transmitted-founder-viruses-into-the-same-recipients-was-not-determined-by-modest-phenotypic-differences
#8
Hongshuo Song, Bhavna Hora, Elena E Giorgi, Amit Kumar, Fangping Cai, Tanmoy Bhattacharya, Alan S Perelson, Feng Gao
A severe bottleneck exists during HIV-1 mucosal transmission. However, viral properties that determine HIV-1 transmissibility are not fully elucidated. We identified multiple transmitted/founder (T/F) viruses in six HIV-1-infected subjects by analyzing whole genome sequences. Comparison of biological phenotypes of different T/F viruses from the same individual allowed us to more precisely identify critical determinants for viral transmissibility since they were transmitted under similar conditions. All T/F viruses used coreceptor CCR5, while no T/F viruses used CXCR4 or GPR15...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27895119/partial-agonist-and-biased-signaling-properties-of-the-synthetic-enantiomers-j113863-ucb35625-at-chemokine-receptors-ccr2-and-ccr5
#9
Jenny Corbisier, Alexandre Huszagh, Céline Galés, Marc Parmentier, Jean-Yves Springael
Biased agonism at G protein coupled receptors constitutes a promising area of research for the identification of new therapeutic molecules. In this study, we identified two novel biased ligands for the chemokine receptors CCR2 and CCR5 and characterized their functional properties. We showed that J113863 and its enantiomer UCB35625, initially identified as high-affinity antagonists for CCR1 and CCR3, also bind with low affinity to the closely related receptors CCR2 and CCR5. Binding of J113863 and UCB35625 to CCR2 or CCR5 resulted in the full or partial activation of the three Gi proteins and the two Go isoforms...
November 28, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27878757/targeting-ccr3-to-reduce-amyloid-%C3%AE-production-tau-hyperphosphorylation-and-synaptic-loss-in-a-mouse-model-of-alzheimer-s-disease
#10
Chunyan Zhu, Bing Xu, Xiaohong Sun, Qiwen Zhu, Yi Sui
The majority of Alzheimer's disease (AD) patients have a late onset, and chronic neuroinflammation, characterized by glial activation and secretion of pro-inflammatory cytokines and chemokines, plays a role in the pathogenesis of AD. The chemokine CCL11 has been shown to be a causative factor of cognitive decline in the process of aging, but little is known whether it is involved in the pathogenesis of AD. In the present study, we showed that CCR3, the receptor for CCL11, was expressed by hippocampal neurons and treatment of primary hippocampal neuronal cultures (14 days in vitro) with CCL11 resulted in activation of cyclin-dependent kinase 5 and glycogen synthase kinase-3β, associated with elevated tau phosphorylation at multiple sites...
November 23, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27866540/-the-study-of-the-eosinophil-cd34-progenitor-cells-differentiation-mechanism-of-model-rats-with-occupational-asthma-and-the-intervention-of-warm-and-tonifying-kidney-yang-decoction
#11
Z Y Hu, Y M Jia, S J Wang, J Y Han, T Yu
Objective: To investigate the mechanism of CD34(+) progenitor cell differentiation in rat by observing the change relations between the eosinophils (EOS) and the content of Eotaxin and IL-5 in blood and the CD34(+)/CCR3(+), CD34(+)/IL-5Rα+ in bone marrow after occupational asthma (OA) model rats are simulated, and to observe the effect of WTKYD Trraitional Chinese Medicine intervention. Methods: A total of 40 healthy male SD model rats (200~250 g weight) were randomly divided into model contrast Group, prednisone acetate intervention Group, WTKYD+1/2 prednisone acetate intervention Group and WTKYD intervention Group, 10 in each group, and set a Group for blank contrast...
September 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/27832807/sex-specific-variation-in-signaling-pathways-and-gene-expression-patterns-in-human-leukocytes-in-response-to-endotoxin-and-exercise
#12
Asghar Abbasi, Rodolfo de Paula Vieira, Felix Bischof, Michael Walter, Masoud Movassaghi, Nicole C Berchtold, Andreas M Niess, Carl W Cotman, Hinnak Northoff
BACKGROUND: While exercise effects on the immune system have received increasing attention in recent years, it remains unclear to what extent gender and fluctuations in sex hormones during menstrual cycle influence immunological responses to exercise. METHODS: We investigated mRNA changes induced through exhaustive exercise (half-marathon; pre-exercise and post-exercise [30 min, 3 h, 24 h] on whole blood cultures ± lipopolysaccharide [LPS] [1 h]) with a specific focus on sex differences (men vs women in luteal phase) as an extension of our previous study...
November 10, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27830077/corrigendum
#13
(no author information available yet)
[This corrects the article DOI: 10.1002/ccr3.493.].
November 2016: Clinical Case Reports
https://www.readbyqxmd.com/read/27825045/therapeutic-effects-of-rosmarinic-acid-on-airway-responses-in-a-murine-model-of-asthma
#14
Zhengmin Liang, Haiying Nie, Yangfeng Xu, Jianbo Peng, Yun Zeng, Yingyi Wei, Xuemei Wen, Jiaming Qiu, Weiting Zhong, Xuming Deng, Jiakang He
Rosmarinic acid (RA) is an active component of a traditional Chinese herbal medicine. Previously, we reported that RA exerted a strong anti-inflammatory effect in a mouse acute lung injury model. Therefore, we hypothesized that RA might also have potential therapeutic effects in a murine model of asthma. In this study, we aimed to evaluate the anti-asthmatic activity of RA and explored its possible molecular mechanisms of action. Female BALB/c mice that had been sensitized to and challenged with ovalbumin (Ova) were treated with RA (20mg/kg) 1h after challenge...
December 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27822494/high-content-genome-wide-rnai-screen-reveals-ccr3-as-a-key-mediator-of-neuronal-cell-death
#15
Jianmin Zhang, Huaishan Wang, Omar Sherbini, Emily Ling-Lin Pai, Sung-Ung Kang, Ji-Sun Kwon, Jia Yang, Wei He, Hong Wang, Stephen M Eacker, Zhikai Chi, Xiaobo Mao, Jinchong Xu, Haisong Jiang, Shaida A Andrabi, Ted M Dawson, Valina L Dawson
Neuronal loss caused by ischemic injury, trauma, or disease can lead to devastating consequences for the individual. With the goal of limiting neuronal loss, a number of cell death pathways have been studied, but there may be additional contributors to neuronal death that are yet unknown. To identify previously unknown cell death mediators, we performed a high-content genome-wide screening of short, interfering RNA (siRNA) with an siRNA library in murine neural stem cells after exposure to N-methyl-N-nitroso-N'-nitroguanidine (MNNG), which leads to DNA damage and cell death...
September 2016: ENeuro
https://www.readbyqxmd.com/read/27820933/secretoglobin-superfamily-protein-scgb3a2-alleviates-house-dust-mite-induced-allergic-airway-inflammation-in-mice
#16
Mitsuhiro Yoneda, Lei Xu, Hiroaki Kajiyama, Shuko Kawabe, Jorge Paiz, Jerrold M Ward, Shioko Kimura
BACKGROUND: Secretoglobin (SCGB) 3A2, a novel, lung-enriched, cytokine-like, secreted protein of small molecular weight, was demonstrated to exhibit various biological functions including anti-inflammatory, antifibrotic and growth-factor activities. Anti-inflammatory activity was uncovered using the ovalbumin-induced allergic airway inflammation model. However, further validation of this activity using knockout mice in a different allergic inflammation model is necessary in order to establish the antiallergic inflammatory role for this protein...
2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27815198/comparative-immunity-of-salmo-salar-and-oncorhynchus-kisutch-during-infestation-with-the-sea-louse-caligus-rogercresseyi-an-enrichment-transcriptome-analysis
#17
Valentina Valenzuela-Muñoz, Sebastian Boltaña, Cristian Gallardo-Escárate
Caligus rogercresseyi, an ectoparasite affecting the Chilean salmon industry, can cause immunosuppression and physiological stress in farmed fish. Interestingly, coho salmon (Oncorhynchus kisutch) are notably resistant to infestation, whereas Atlantic salmon (Salmo salar) are phenotypically more susceptible to sea lice. However, comparative studies on immune responses to C. rogercresseyi have not been conducted. In this study, Illumina sequencing was conducted to evaluate head kidney and skin samples taken 7 and 14 days post-infestation, yielding a total of 1492 and 1522 contigs annotated to immune-related genes for Atlantic and coho salmon, respectively...
December 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27776524/pulsed-high-dose-dexamethasone-modulates-th1-th2-chemokine-imbalance-in-immune-thrombocytopenia
#18
Zongtang Liu, Meiying Wang, Shufen Zhou, Ji Ma, Yan Shi, Jun Peng, Ming Hou, Chengshan Guo
BACKGROUND: Chemokines and chemokine receptors play important roles in autoimmune diseases; however, their role in immune thrombocytopenia (ITP) is unclear. High-dose dexamethasone (HD-DXM) may become a first-line therapy for adult patients with ITP, but the effect of HD-DXM on chemokines in ITP patients is unknown. Our aim was to investigate the mechanism of pulsed HD-DXM for management of ITP, specifically regarding the chemokine pathways. METHODS: Th1-/Th2-associated chemokine and chemokine receptor profiles in ITP patients before and after pulsed HD-DXM was studied...
October 24, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27736777/genome-wide-association-study-of-cell-mediated-response-in-dogs-naturally-infected-by-leishmania-infantum
#19
Luís F S Batista, Yuri T Utsunomiya, Thaís B F Silva, Raíssa A Dias, Thaise Y Tomokane, Acácio D Pacheco, Vânia L R da Matta, Fernando T Silveira, Mary Marcondes, Cáris M Nunes, Márcia D Laurenti
A genome-wide association study (GWAS) could unravel the complexity of the cell-mediated immunity (CMI) to canine leishmaniasis (CanL). Therefore, we scanned 110,165 single-nucleotide polymorphisms (SNPs), aiming to identify chromosomal regions associated with the leishmanin skin test (LST), lymphocyte proliferation assay (LPA), and cytokine responses to further understand the role played by CMI in the outcome of natural Leishmania infantum infection in 189 dogs. Based on LST and LPA, four CMI profiles were identified (LST(-)/LPA(-), LST(+)/LPA(-), LST(-)/LPA(+), and LST(+)/LPA(+)), which were not associated with subclinically infected or diseased dogs...
December 2016: Infection and Immunity
https://www.readbyqxmd.com/read/27693537/resveratrol-treatment-attenuates-chemokine-receptor-expression-in-the-btbr-t-tf-j-mouse-model-of-autism
#20
Saleh A Bakheet, Mohammad Zeed Alzahrani, Ahmed Nadeem, Mushtaq Ahmad Ansari, Khairy M A Zoheir, Sabry M Attia, Laila Yousef Al-Ayadhi, Sheikh Fayaz Ahmad
Autism is a neurodevelopmental disorder categorized by qualitative impairments in social interaction, communication, and repetitive stereotypic behavior. Emerging evidence increasingly suggests that chemokine receptors have a pivotal role in the central nervous system and are involved in the pathogenesis of numerous neuroinflammatory diseases. Resveratrol is widely used to treat neurodegenerative diseases, but its effect on autism has not been investigated. We investigated the effect of resveratrol (20 and 40mg/kg) in the spleen and brain tissues of BTBR T+tf/J (BTBR) and C57BL/6J (B6) mice as well as on the C-C chemokine receptor (CCR) and C-X-C motif chemokine receptor (CXCR) (CCR3(+), CCR5(+), CCR7(+) and CCR9(+), CXCR3(+) and CXCR5(+)) in cluster of differentiation 4-positive (CD4(+)) T cells in the spleen...
December 2016: Molecular and Cellular Neurosciences
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