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Immune complex

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https://www.readbyqxmd.com/read/29775897/the-gastric-mucosal-protective-effects-of-astragaloside-iv-in-mnng-induced-gpl-rats
#1
Tiantian Cai, Chengzhe Zhang, Ziming Zhao, Siyi Li, Haobin Cai, Xiaodong Chen, Dake Cai, Wei Liu, Yan Yan, Kaifeng Xie, Huafeng Pan, Xiaohui Zeng
Gastric Cancer is one of the most common types of cancer. And the occurrence of gastric carcinoma is an evolutionary histopathological stage. As a result, further research of GPL, which is a borderline of gastric cancer, is indispensable for preventing the formation and development of gastric carcinoma. Several studies have demonstrated a correlation between the expression of autophagy, apoptosis and Gastric cancer (GC). However, the effects of autophagy and apoptosis on human gastric cancer progression, particularly on gastric precancerous lesions (GPL), have not totally been investigated...
May 15, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29775847/strategies-for-a-multi-stage-neutralizing-antibody-based-hiv-vaccine
#2
REVIEW
Raiees Andrabi, Jinal N Bhiman, Dennis R Burton
A critical property of a prophylactic HIV vaccine is likely to be its ability to elicit broadly neutralizing antibodies (bnAbs). BnAbs typically have multiple unusual features and are generated in a fraction of HIV-infected individuals through complex pathways. Current vaccine design approaches seek to trigger rare B cell precursors and then steer affinity maturation toward bnAbs in a multi-stage multi-component immunization approach. These vaccine design strategies have been facilitated by molecular descriptions of bnAb interactions with stabilized HIV trimers, the use of an array of sophisticated approaches for immunogen design, the development of novel animal models for immunogen evaluation and advanced technologies to interrogate antibody responses...
May 15, 2018: Current Opinion in Immunology
https://www.readbyqxmd.com/read/29775734/defining-the-osteoarthritis-patient-back-to-the-future
#3
REVIEW
Geoffrey P Dobson, Hayley L Letson, Andrea Grant, Peter McEwen, Kaushik Hazratwala, Matthew Wilkinson, Jodie L Morris
The history of osteoarthritis (OA) is important because it can help broaden our perspective on past and present controversies. The naming of OA, beginning with Heberden's nodes, is itself a fascinating story. According to Albert Hoffa, R. Llewellyn Jones and Archibald Edward Garrod, the name OA was introduced in the mid-19th century by surgeon Richard von Volkmann who distinguished it from rheumatoid arthritis and gout. Others preferred the terms 'chronical rheumatism', 'senile arthritis', 'hypertrophic arthritis' or 'arthritis deformans'...
May 15, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29775619/proteomic-approach-to-profiling-immune-complex-antigens-in-cerebrospinal-fluid-samples-from-patients-with-central-nervous-system-autoimmune-diseases
#4
Nozomi Aibara, Kunihiro Ichinose, Miyako Baba, Hideki Nakajima, Katsuya Satoh, Ryuichiro Atarashi, Naoya Kishikawa, Noriyuki Nishida, Atsushi Kawakami, Naotaka Kuroda, Kaname Ohyama
BACKGROUND: Immune complexes (ICs) may clearly reflect immunological abnormalities caused by disease, especially for autoimmune diseases. Although ICs have been detected in cerebrospinal fluid (CSF) from patients with CNS autoimmune diseases, identities of antigens in such ICs have not been comprehensively determined. METHODS: We used immune complexome analysis, in which nano-liquid chromatography-tandem mass spectrometry is employed to comprehensively identify antigens incorporated into ICs in biological fluids, to characterize ICs in CSF samples from patients with CNS autoimmune diseases, and to find disease-specific IC antigen to a certain CNS autoimmune disease...
May 15, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29775216/neuroimmflammation-and-microglia-in-glaucoma-time-for-a-paradigm-shift
#5
REVIEW
Xin Wei, Kin-Sang Cho, Eric F Thee, Martine J Jager, Dong Feng Chen
Glaucoma is a complex neurodegenerative disease with many clinical subtypes. Some of its rare forms include pigmentary glaucoma, uveitic glaucoma and congenital glaucoma. While they all share common features of progressive retinal ganglion cell (RGC) loss, optic nerve damage and corresponding visual field loss, the exact mechanisms underlying glaucomatous neuron loss are not clear. This has largely hindered the development of a real cure for this disease. Elevated intraocular pressure (IOP) is a known major risk factor of glaucoma; however, progressive degeneration of RGCs and axons can also be found in patients with a normal IOP, i...
May 18, 2018: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29774769/serum-mediated-activation-of-bone-marrow-derived-mesenchymal-stem-cells-in-ischemic-stroke-patients-a-novel-preconditioning-method
#6
Gyeong Joon Moon, Yeon Hee Cho, Dong Hee Kim, Ji Hee Sung, Jeong Pyo Son, Sooyoon Kim, Jae Min Cha, Oh Young Bang
Stroke induces complex and dynamic, local and systemic changes including inflammatory reactions, immune responses, and repair and recovery processes. Mesenchymal stem cells (MSCs) have been shown to enhance neurological recovery after stroke. We hypothesized that serum factors play a critical role in the activation of bone marrow (BM) MSCs after stroke such as by increasing proliferation, paracrine effects, and rejuvenation. Human MSCs (hMSCs) were grown in fetal bovine serum (FBS), normal healthy control serum (NS), or stroke patient serum (SS)...
January 1, 2018: Cell Transplantation
https://www.readbyqxmd.com/read/29774640/regulatory-roles-of-flavonoids-on-inflammasome-activation-during-inflammatory-responses
#7
REVIEW
Young-Su Yi
Inflammation is an innate immune response to noxious stimuli to protect the body from pathogens and dangers. Inflammatory responses consist of two main steps: priming and triggering. In priming, inflammatory cells increase expressions of inflammatory molecules, while in triggering, inflammasomes are activated, resulting in cell death and pro-inflammatory cytokine secretion. Inflammasomes are protein complexes comprising intracellular pattern recognition receptors (PRRs) (e.g. nucleotide-binding oligomerization domain-like receptors (NLRs), absent in melanoma 2 (AIM2), and caspases-4/5/11) and pro-caspase-1 with or without a bipartite adaptor molecule ASC...
May 17, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29774579/integrative-epigenetic-analysis-reveals-therapeutic-targets-to-the-dna-methyltransferase-inhibitor-sgi-110-in-hepatocellular-carcinoma
#8
Minmin Liu, Lian Zhang, Hongtao Li, Toshinori Hinoue, Wanding Zhou, Hitoshi Ohtani, Anthony El-Khoueiry, John Daniels, Casey O'Connell, Tanya B Dorff, Qianjin Lu, Daniel J Weisenberger, Gangning Liang
There is an urgent need for developing more effective therapies for hepatocellular carcinoma (HCC) because of its aggressiveness. Guadecitabine (SGI-110) is a second-generation DNA methyltransferase inhibitor (DNMTi) currently in clinical trials for HCC and shows greater stability and performance over first generation DNMTis. In order to identify potential therapeutic targets of SGI-110 for clinical trials, HCC cell lines (SNU398, HepG2 and SNU475) were used to evaluate effects of transient SGI-110 treatment by an integrative analysis of DNA methylation, nucleosome accessibility, gene expression profiles and its clinical relevance by comparisons to TCGA HCC clinical data...
May 18, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29774029/lfa-1-in-t-cell-migration-and-differentiation
#9
REVIEW
Brandon L Walling, Minsoo Kim
Maintenance of homeostatic immune surveillance and development of effective adaptive immune responses require precise regulation of spatial and temporal lymphocyte trafficking throughout the body to ensure pathogen clearance and memory generation. Dysregulation of lymphocyte activation and migration can lead to impaired adaptive immunity, recurrent infections, and an array of autoimmune diseases and chronic inflammation. Central to the recruitment of T cells, integrins are cell surface receptors that regulate adhesion, signal transduction, and migration...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29774024/quantification-of-hla-dm-dependent-major-histocompatibility-complex-of-class-ii-immunopeptidomes-by-the-peptide-landscape-antigenic-epitope-alignment-utility
#10
Miguel Álvaro-Benito, Eliot Morrison, Esam T Abualrous, Benno Kuropka, Christian Freund
The major histocompatibility complex of class II (MHCII) immunopeptidome represents the repertoire of antigenic peptides with the potential to activate CD4+ T cells. An understanding of how the relative abundance of specific antigenic epitopes affects the outcome of T cell responses is an important aspect of adaptive immunity and offers a venue to more rationally tailor T cell activation in the context of disease. Recent advances in mass spectrometric instrumentation, computational power, labeling strategies, and software analysis have enabled an increasing number of stratified studies on HLA ligandomes, in the context of both basic and translational research...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29773669/unresolved-endoplasmic-reticulum-stress-engenders-immune-resistant-latent-pancreatic-cancer-metastases
#11
Arnaud Pommier, Naishitha Anaparthy, Nicoletta Memos, Z Larkin Kelley, Alizée Gouronnec, Ran Yan, Cédric Auffray, Jean Albrengues, Mikala Egeblad, Christine A Iacobuzio-Donahue, Scott K Lyons, Douglas T Fearon
The majority of patients with pancreatic ductal adenocarcinoma (PDA) develop metastatic disease after resection of their primary tumor. We found that livers from patients and mice with PDA harbor single, disseminated cancer cells (DCCs) lacking expression of cytokeratin-19 (CK19) and major histocompatibility complex class I (MHCI). We created a mouse model to determine how these DCCs develop. Intra-portal injection of immunogenic PDA cells into pre-immunized mice seeded livers only with single, non-replicating DCCs that were CK19- and MHCI- The DCCs exhibited an endoplasmic reticulum (ER) stress response but, paradoxically lacked both inositol-requiring enzyme 1α activation and expression of the spliced form of transcription factor XBP1 (XBP1s)...
May 17, 2018: Science
https://www.readbyqxmd.com/read/29772686/inhibition-of-the-ccl5-ccr5-axis-against-the-progression-of-gastric-cancer
#12
REVIEW
Donatella Aldinucci, Naike Casagrande
Despite the progress made in molecular and clinical research, patients with advanced-stage gastric cancer (GC) have a bad prognosis and very low survival rates. Furthermore, it is challenging to find the complex molecular mechanisms that are involved in the development of GC, its progression, and its resistance to therapy. The interactions of chemokines, also known as chemotactic cytokines, with their receptors regulate immune and inflammatory responses. However, updated research demonstrates that cancer cells subvert the normal chemokine role, transforming them into fundamental constituents of the tumor microenvironment (TME) with tumor-promoting effects...
May 16, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29772263/comparative-analysis-of-microrna-expression-in-dog-lungs-infected-with-the-h3n2-and-h5n1-canine-influenza-viruses
#13
Yun Zheng, Xinliang Fu, Lifang Wang, Wenyan Zhang, Pei Zhou, Xin Zhang, Weijie Zeng, Jidang Chen, Zongxi Cao, Kun Jia, Shoujun Li
MicroRNAs, a class of noncoding RNAs 18 to 23 nucleotides (nt) in length, play critical roles in a wide variety of biological processes. The objective of this study was to examine differences in microRNA expression profiles derived from the lungs of beagle dogs infected with the avian-origin H3N2 canine influenza virus (CIV) or the highly pathogenic avian influenza (HPAI) H5N1 virus (canine-origin isolation strain). After dogs were infected with H3N2 or H5N1, microRNA expression in the lungs was assessed using a deep-sequencing approach...
May 14, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29772089/microevolutionary-selection-dynamics-acting-on-immune-genes-of-the-green-veined-white-butterfly-pieris-napi
#14
Naomi L P Keehnen, Jason Hill, Sören Nylin, Christopher W Wheat
Insects rely on their innate immune system to successfully mediate complex interactions with their microbiota, as well as the microbes present in the environment. Previous work has shown that components of the canonical immune gene repertoire evolve rapidly and have evolutionary characteristics originating from interactions with fast-evolving microorganisms. Although these interactions are likely to vary among populations, there is a poor understanding of the microevolutionary dynamics of immune genes, especially in non-Dipteran insects...
May 17, 2018: Molecular Ecology
https://www.readbyqxmd.com/read/29771981/antimicrobial-activity-of-bovine-nk-lysin-derived-peptides-on-mycoplasma-bovis
#15
Rohana P Dassanayake, Shollie M Falkenberg, Karen B Register, Daniel Samorodnitsky, Eric M Nicholson, Timothy A Reinhardt
Antimicrobial peptides (AMPs) are a diverse group of molecules which play an important role in the innate immune response. Bovine NK-lysins, a type of AMP, have been predominantly found in the granules of cytotoxic T-lymphocytes and NK-cells. Bovine NK-lysin-derived peptides demonstrate antimicrobial activity against various bacterial pathogens, including several involved in bovine respiratory disease complex (BRDC) in cattle; however, such studies are yet to be performed with one important contributor to the BRDC, Mycoplasma bovis...
2018: PloS One
https://www.readbyqxmd.com/read/29771921/mosquito-saliva-alone-has-profound-effects-on-the-human-immune-system
#16
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/29770510/scf-sniper-4-controls-the-turnover-of-two-redundant-traf-proteins-in-plant-immunity
#17
Jianhua Huang, Chipan Zhu, Xin Li
In mammals, tumor necrosis factor receptor associated factors (TRAFs) are signaling adaptors that regulate diverse physiological processes, including immunity and stress responses. In Arabidopsis, MUSE13 and MUSE14 are redundant TRAF proteins serving as adaptors in the SCFCRP 1 complex to facilitate the turnover of nucleotide-binding domain and leucine-rich repeats (NLR) immune receptors. Degradation of MUSE13 is inhibited by proteasome inhibitor, suggesting that the MUSE13 stability is controlled by the 26S proteasome...
May 16, 2018: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29770138/ny-eso-1-based-immunotherapy-of-cancer-current-perspectives
#18
REVIEW
Remy Thomas, Ghaneya Al-Khadairi, Jessica Roelands, Wouter Hendrickx, Said Dermime, Davide Bedognetti, Julie Decock
NY-ESO-1 or New York esophageal squamous cell carcinoma 1 is a well-known cancer-testis antigen (CTAs) with re-expression in numerous cancer types. Its ability to elicit spontaneous humoral and cellular immune responses, together with its restricted expression pattern, have rendered it a good candidate target for cancer immunotherapy. In this review, we provide background information on NY-ESO-1 expression and function in normal and cancerous tissues. Furthermore, NY-ESO-1-specific immune responses have been observed in various cancer types; however, their utility as biomarkers are not well determined...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29770132/differing-outcome-of-experimental-autoimmune-encephalitis-in-macrophage-neutrophil-and-t-cell-specific-gp130-deficient-mice
#19
Kristian Holz, Marco Prinz, Stefanie M Brendecke, Alexandra Hölscher, Fengyuan Deng, Hans-Willi Mitrücker, Stefan Rose-John, Christoph Hölscher
gp130 cytokines are differentially involved in regulating the T helper (H) 17-driven pathogenesis of experimental autoimmune encephalomyelitis (EAE), the animal model of human multiple sclerosis. Interleukin (IL)-6 directly promotes the development of TH17 cells through the gp130/IL-6R complex. By contrast, IL-27 has been shown to suppress a TH17 immune response by gp130/IL-27R-alpha (α) receptor ligation. The IL-27-dependent regulation of a TH17 development could be mediated on the level of CD4 T cells. However, because IL-27 also suppresses the secretion of the TH17-driving cytokines IL-6 and IL-12/23p40 in accessory cells, TH17 immune responses may also be controlled by IL-27 on the level of macrophages and/or neutrophils...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29769573/discovery-of-a-novel-il-15-based-protein-with-improved-developability-and-efficacy-for-cancer-immunotherapy
#20
Qiyue Hu, Xin Ye, Xiangdong Qu, Dongbing Cui, Lei Zhang, Zhibin Xu, Hong Wan, Lianshan Zhang, Weikang Tao
Interleukin-15 (IL-15) can promote both innate and adaptive immune reactions by stimulating CD8+ /CD4+ T cells and natural killer cells (NK) while showing no effect in activating T-regulatory (Treg) cells or inducing activation-associated death among effector T cells and NK cells. Thus, IL-15 is considered as one of the most promising molecules for antitumor immune therapy. To improve the drug-like properties of natural IL-15, we create an IL-15-based molecule, named P22339, with the following characteristics: 1) building a complex of IL-15 and the Sushi domain of IL-15 receptor α chain to enhance the agonist activity of IL-15 via transpresentation; 2) through a rational structure-based design, creating a disulfide bond linking the IL-15/Sushi domain complex with an IgG1 Fc to augment its half-life...
May 16, 2018: Scientific Reports
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