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https://www.readbyqxmd.com/read/28211204/evaluation-of-the-enhanced-permeability-and-retention-effect-in-the-early-stages-of-lymph-node-metastasis
#1
Mamoru Mikada, Ariunbuyan Sukhbaatar, Yoshinobu Miura, Sachiko Horie, Maya Sakamoto, Shiro Mori, Tetsuya Kodama
Most solid cancers spread to new sites via the lymphatics before hematogenous dissemination. However, only a small fraction of an intravenously administered anti-cancer drug enters the lymphatic system to reach metastatic lymph nodes (LNs). Here, we show that the enhanced permeability and retention (EPR) effect is not induced during the early stages of LN metastasis. Luciferase-expressing tumor cells were injected into the subiliac LN of the MXH10/Mo-lpr/lpr mouse to induce metastasis to the proper axillary LN (PALN)...
February 17, 2017: Cancer Science
https://www.readbyqxmd.com/read/28203149/gene-gene-environment-interactions-of-serotonin-transporter-monoamine-oxidase-a-and-childhood-maltreatment-predict-aggressive-behavior-in-chinese-adolescents
#2
Yun Zhang, Qing-Sen Ming, Jin-Yao Yi, Xiang Wang, Qiao-Lian Chai, Shu-Qiao Yao
Gene-environment interactions that moderate aggressive behavior have been identified independently in the serotonin transporter (5-HTT) gene and monoamine oxidase A gene (MAOA). The aim of the present study was to investigate epistasis interactions between MAOA-variable number tandem repeat (VNTR), 5-HTTlinked polymorphism (LPR) and child abuse and the effects of these on aggressive tendencies in a group of otherwise healthy adolescents. A group of 546 Chinese male adolescents completed the Child Trauma Questionnaire and Youth self-report of the Child Behavior Checklist...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28199852/b-cell-activating-factor-baff-selects-il-10-b-cells-over-il-10-b-cells-during-inflammatory-responses
#3
Ning Ma, Yu Zhang, Qilin Liu, Zhiding Wang, Xiaoling Liu, Gaizhi Zhu, Dandan Yu, Gencheng Han, Guojiang Chen, Chunmei Hou, Tianxiao Wang, Yuanfang Ma, Beifen Shen, Yan Li, He Xiao, Renxi Wang
B cell activating factor (BAFF) regulates B cell maturation, survival, function, and plays a critical pathogenic role in autoimmune diseases. It remains unclear how BAFF affects IL-10(-)B cells versus regulatory B cells (Bregs) in inflammatory responses. In this study, we found that IL-10-expressing Bregs decreased in lupus-prone MRL/lpr mice and experimental allergic encephalomyelitis (EAE) mice. On blockade of the effects of BAFF with TACI-IgG, IL-10(+) Bregs were upregulated in MRL/lpr and EAE mice. In addition, BAFF expanded IL-10(+)B cells over IL-10(-)B cells under noninflammatory conditions in vitro, whereas it expanded IL-10(-)B cells over IL-10(+)B cells during inflammatory responses, such as stimulation with autoantigen and LPS...
February 12, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28197868/plasma-levels-of-immune-factors-and-sex-steroids-in-the-male-seahorse-hippocampus-erectus-during-a-breeding-cycle
#4
Tingting Lin, Xin Liu, Dongxue Xiao, Dong Zhang
To better understand the endocrine- and immune-response pattern during reproduction in a fish species having parental care behaviors and also to accumulate the endocrine- and immune-related data for future explanations of the low reproductive efficiency in seahorse species, the variations of immune factors and sex steroids in the plasma of the male lined seahorse Hippocampus erectus at different breeding stages, i.e., pre-pregnancy, pregnancy (early, middle, and late periods), and post-pregnancy, were investigated in the present study...
February 14, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28192517/neutrophils-and-neutrophil-serine-proteases-are-increased-in-the-spleens-of-estrogen-treated-c57bl-6-mice-and-several-strains-of-spontaneous-lupus-prone-mice
#5
Rujuan Dai, Catharine Cowan, Bettina Heid, Deena Khan, Zhihong Liang, Christine T N Pham, S Ansar Ahmed
Estrogen, a natural immunomodulator, regulates the development and function of diverse immune cell types. There is now renewed attention on neutrophils and neutrophil serine proteases (NSPs) such as neutrophil elastase (NE), proteinase 3 (PR3), and cathepsin G (CG) in inflammation and autoimmunity. In this study, we found that although estrogen treatment significantly reduced total splenocytes number, it markedly increased the splenic neutrophil absolute numbers in estrogen-treated C57BL/6 (B6) mice when compared to placebo controls...
2017: PloS One
https://www.readbyqxmd.com/read/28191006/capability-of-neutrophils-to-form-nets-is-not-directly-influenced-by-a-cma-targeting-peptide
#6
Christian Maueröder, Nicolas Schall, Frédéric Meyer, Aparna Mahajan, Benjamin Garnier, Jonas Hahn, Deborah Kienhöfer, Markus H Hoffmann, Sylviane Muller
During inflammatory reaction, neutrophils exhibit numerous cellular and immunological functions, notably the formation of neutrophil extracellular traps (NETs) and autophagy. NETs are composed of decondensed chromatin fibers coated with various antimicrobial molecules derived from neutrophil granules. NETs participate in antimicrobial defense and can also display detrimental roles and notably trigger some of the immune features of systemic lupus erythematosus (SLE) and other autoimmune diseases. Autophagy is a complex and finely regulated mechanism involved in the cell survival/death balance that may be connected to NET formation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28129605/mesenchymal-stem-cells-upregulate-treg-cells-via-shla-g-in-sle-patients
#7
Chen Chen, Jun Liang, Genhong Yao, Haifeng Chen, Bingyu Shi, Zhuoya Zhang, Cheng Zhao, Huayong Zhang, Lingyun Sun
BACKGROUND: Soluble human leukocyte antigen-G (sHLA-G) is a non-classical HLA class I molecule, exhibiting strong immunosuppressive properties by inducing the differentiation of T regulatory cells (Treg). Mesenchymal stem cells (MSCs) transplantation alleviates disease progression in systemic lupus erythematosus (SLE) patients. However, the underlying mechanisms are largely unknown. OBJECTIVES: To explore whether sHLA-G is involved in upregulating effects of MSCs on Treg, which contributes to therapeutic effects of MSCs transplantation in SLE...
January 24, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28126732/effects-of-n-acetyl-seryl-asparyl-lysyl-proline-on-blood-pressure-renal-damage-and-mortality-in-systemic-lupus-erythematosus
#8
Pablo Nakagawa, Juan X Masjoan-Juncos, Heba Basha, Branislava Janic, Morel E Worou, Tang-Dong Liao, Cesar A Romero, Edward L Peterson, Oscar A Carretero
Systemic lupus erythematosus (SLE) is an autoimmune disease with a high prevalence of hypertension. NZBWF1 (SLE-Hyp) mice develop hypertension that can be prevented by modulating T cells. The peptide N-acetyl-seryl-aspartyl-lysyl-proline (Ac-SDKP) decreases renal damage and improves renal function in a model of SLE without hypertension (MRL/lpr). However, it is not known whether Ac-SDKP prevents hypertension in NZBWF1 mice. We hypothesized that in SLE-Hyp, Ac-SDKP prevents hypertension and renal damage by modulating T cells...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28124104/the-linear-penetration-rate-is-not-relevant-for-evaluating-wear-of-dual-mobility-cups-an-explant-study
#9
Bertrand Boyer, Thomas Neri, Alexandre Di Iorio, Jean Geringer, Remi Philippot, Frederic Farizon
PURPOSE: The linear penetration rate (LPR) has been used to estimate volumetric wear ever since metal-on-polyethylene bearings were first introduced. Annual volumetric wear and osteolysis are interrelated. The use of dual mobility cups has increased; however, the presence of two bearings needs paraclinical monitoring of wear to anticipate potential wear-related complications. Is LPR correlated to volumetric wear? METHODS: Ninety-eight dual mobility liner retrievals were mapped in three-dimensions (3D) with a fully automatic stripe light scanner...
January 26, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28122300/y-27632-a-rho-associated-protein-kinase-inhibitor-inhibits-systemic-lupus-erythematosus
#10
Yuanyuan Wang, Yang Lu, Jixia Chai, Meiqun Sun, Xiaodong Hu, Wenxin He, Min Ge, Changhao Xie
The purpose of the present study was to evaluate whether Rho-kinase inhibition (Y-27632) modulated the expressions of nuclear factor kappaB (NF-κB) in systemic lupus erythematosus. 20 wild type mice and 20 MRL/lpr mice were applied for the research. The animals were randomly assigned to wild type, wild type+Y-27632 group, MRL/lpr group and MRL/lpr+Y-27632 group. 5mg/kg Y-27632 was intravenously injected to inhibit the ROCK expressions.Y-27632 significantly decreased the serum levels of interleukin-6 (IL-6), IL-1β, tumor necrosis factor-α (TNF-α) and increased IL-10 level in serum of MRL/lpr mice...
January 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28117437/ccl2-deficient-mesenchymal-stem-cells-fail-to-establish-long-lasting-contact-with-t-cells-and-no-longer-ameliorate-lupus-symptoms
#11
Hong Kyung Lee, Hyung Sook Kim, Ji Sung Kim, Yong Guk Kim, Ki Hwan Park, Jae Hee Lee, Ki Hun Kim, In Young Chang, Sang-Cheol Bae, Youngsoo Kim, Jin Tae Hong, John H Kehrl, Sang-Bae Han
Systemic lupus erythematosus (SLE) is a multi-organ autoimmune disease characterized by autoantibody production. Mesenchymal stem cells (MSCs) ameliorate SLE symptoms by targeting T cells, whereas the mechanisms of their efficacy remain incompletely understood. In this study, we show that transfer of human MSCs increased MRL.Fas(lpr) mouse survival, decreased T cell infiltration in the kidneys, and reduced T cell cytokine expression. In vitro, allogeneic mouse MSCs inhibited MRL.Fas(lpr) T cell proliferation and cytokine production...
January 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28108989/tigit-signalling-pathway-negatively-regulates-cd4-t-cell-responses-in-systemic-lupus-erythematosus
#12
Lie Mao, Hongyan Hou, Shiji Wu, Yu Zhou, Juan Wang, Jing Yu, Xiaohui Wu, Yanfang Lu, Liyan Mao, Munyemana Jean Bosco, Feng Wang, Ziyong Sun
B-lymphocyte hyperactivity in systemic lupus erythematosus (SLE) is T-cell-dependent, and CD4(+) T-cell activation is essential to SLE pathogenesis. However, the mechanism of the deregulation of CD4(+) T cells in SLE is largely unknown. T-cell immunoglobulin and ITIM domain (TIGIT) is a new inhibitory receptor preferentially expressed on activated CD4(+) T cells. Here, we address the role of TIGIT in the pathogenesis of SLE. Our results showed that TIGIT expression on CD4(+) T cells was significantly elevated in patients with SLE and highly correlated with the activity of the disease...
January 20, 2017: Immunology
https://www.readbyqxmd.com/read/28105982/human-umbilical-cord-mesenchymal-stem-cells-inhibit-t-follicular-helper-cell-expansion-through-the-activation-of-inos-in-lupus-prone-b6-mrl-fas-lpr-mice
#13
Zhuoya Zhang, Ruihai Feng, Lingying Niu, Saisai Huang, Wei Deng, Bingyu Shi, Genhong Yao, Weiwei Chen, Xiaojun Tang, Xiang Gao, Xuebing Feng, Lingyun Sun
The aberrant generation or activation of T follicular helper (Tfh) cells contributes to the pathogenesis of systemic lupus erythematosus (SLE), yet little is known about how these cells are regulated. In this study, we demonstrated that the frequency of Tfh cells was increased in lupus-prone B6.MRL-<i>Fas<sup>lpr</sup></i> (B6.<i>lpr</i>) mice and positively correlated to plasma cell proportions and serum total IgG as well as anti-dsDNA antibody levels. Transplantation of human umbilical cord mesenchymal stem cells (UC-MSCs) ameliorated lupus symptoms in B6...
January 20, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28100505/-5r-5-hydroxytriptolide-ameliorates-lupus-nephritis-in-mrl-lpr-mice-by-preventing-infiltration-of-immune-cells
#14
Lu-Yao Zhang, Heng Li, Yan-Wei Wu, Lei Cheng, Yu-Xi Yan, Xiao-Qian Yang, Feng-Hua Zhu, Shi-Jun He, Wei Tang, Jian-Ping Zuo
(5R)-5-Hydroxytriptolide (LLDT-8), a triptolide derivative with low toxicity, was previously reported to have strong immunosuppressive effects both in vitro and in vivo, but it remains unknown whether LLDT-8 has a therapy effect on systemic lupus erythematosus. In this study, we aimed to investigate the therapeutic effects of LLDT-8 on lupus nephritis in MRL/lpr mice, a model of systemic lupus erythematosus. Compared with vehicle group, different clinical parameters were improved upon LLDT-8 treatment: prolonged life-span of mice, decreased proteinuria, downregulated blood urea nitrogen and serum creatinine, reduced glomerular IgG deposits, and ameliorated histopathology...
January 18, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28093526/cathepsin-k-deficiency-ameliorates-systemic-lupus-erythematosus-like-manifestations-in-faslpr-mice
#15
Yi Zhou, Huimei Chen, Li Liu, Xueqing Yu, Galina K Sukhova, Min Yang, Vasileios C Kyttaris, Isaac E Stillman, Bruce Gelb, Peter Libby, George C Tsokos, Guo-Ping Shi
Cysteinyl cathepsin K (CatK) is expressed in osteoclasts to mediate bone resorption, but is also inducible under inflammatory conditions. Fas(lpr) mice on a C57BL/6 background develop spontaneous systemic lupus erythematosus-like manifestations. Although normal mouse kidneys expressed negligible CatK, those from Fas(lpr) mice showed elevated CatK expression in the glomeruli and tubulointerstitial space. Fas(lpr) mice also showed elevated serum CatK levels. CatK deficiency in Fas(lpr) mice reduced all tested kidney pathologies, including glomerulus and tubulointerstitial scores, glomerulus complement C3 and IgG deposition, chemokine expression and macrophage infiltration, and serum autoantibodies...
January 16, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28089248/triggering-receptor-expressed-on-myeloid-cells-1-trem-1-deficiency-augments-baff-production-to-promote-lupus-progression
#16
Chi-Jui Liu, Chang-Youh Tsai, Ssu-Hsuan Chiang, Shye-Jye Tang, Nien-Jung Chen, Tak Wah Mak, Guang-Huan Sun, Kuang-Hui Sun
Sensing of nucleic acids by pattern recognition receptors is the key for the initiation and development of systemic lupus erythematosus (SLE). Triggering receptor expressed on myeloid cells-1 (TREM-1) is a novel innate immune receptor, which can amplify Toll-like receptor (TLR)-induced inflammatory responses. Although patients with lupus exhibit increased serum levels of soluble TREM-1 (sTREM-1), the role of TREM-1 in SLE remains unknown. In current study, we found serum sTREM-1 levels were significantly increased in lupus patients and positively correlated with disease activity...
January 11, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28078597/cd95-and-the-mrl-lpr-mouse-model
#17
Robin J Flynn
CD95 (Fas-ligand) is a key mediator of cell death in multiple setting, thus its loss within the MRL-lpr (Fas(lpr)) homozygote mice results in spontaneous autoimmunity. This is characterized by the development of arthritis and immune complex glomerulonephrosis making this strain a useful model for studying systemic lupus erythematosus. Herein we describe a method to exploit the heterozygote offspring of this strain in a model to study the effects of a CD95L blocking peptide on lupus-like disease in vivo.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28072466/chronic-pain-and-impaired-glial-glutamate-transporter-function-in-lupus-prone-mice-are-ameliorated-by-blocking-macrophage-colony-stimulating-factor-1-receptors
#18
Xisheng Yan, Dylan W Maixner, Fen Li, Han-Rong Weng
Systemic lupus erythematosus (SLE) is a multi-organ disease of unknown etiology in which the normal immune responses are directed against the body's own healthy tissues. Patients with SLE often suffer from chronic pain. Currently, no animal studies have been reported about the mechanisms underlying pain in SLE. In this study, the development of chronic pain in MRL lupus-prone (MRL/lpr) mice, a well-established lupus mouse model, was characterized for the first time. We found that female MRL/lpr mice developed thermal hyperalgesia at the age of 13 weeks, and mechanical allodynia at the age of 16 weeks...
January 10, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28069467/validity-and-reliability-of-a-french-version-of-reflux-symptom-index
#19
Jérôme R Lechien, Kathy Huet, Camille Finck, Mohamad Khalife, Anne-Françoise Fourneau, Véronique Delvaux, Myriam Piccaluga, Bernard Harmegnies, Sven Saussez
OBJECTIVE: To develop a French version of the Reflux Symptom Index (Fr-RSI) and to assess its internal consistency, reliability, and clinical validity. STUDY DESIGN: Controlled, prospective trial. MATERIALS AND METHODS: Forty-four patients with a reflux finding score > 7 and an Fr-RSI > 13 were enrolled and treated with 20 mg of pantoprazole twice daily and diet changes for 3 months. Ninety asymptomatic subjects were also included in the study...
January 6, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28065927/the-composite-water-and-solute-transport-of-barley-hordeum-vulgare-roots-effect-of-suberized-barriers
#20
Kosala Ranathunge, Yangmin X Kim, Friedrich Wassmann, Tino Kreszies, Viktoria Zeisler, Lukas Schreiber
BACKGROUND AND AIMS: Roots have complex anatomical structures, and certain localized cell layers develop suberized apoplastic barriers. The size and tightness of these barriers depend on the growth conditions and on the age of the root. Such complex anatomical structures result in a composite water and solute transport in roots. METHODS: Development of apoplastic barriers along barley seminal roots was detected using various staining methods, and the suberin amounts in the apical and basal zones were analysed using gas chromatography-mass spectometry (GC-MS)...
January 8, 2017: Annals of Botany
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