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Frontiers in Immunology

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https://www.readbyqxmd.com/read/29774034/targeting-vegf-vegfr-to-modulate-antitumor-immunity
#1
REVIEW
Ju Yang, Jing Yan, Baorui Liu
In addition to the crucial role in promoting the growth of tumor vessels, vascular endothelial growth factor (VEGF) is also immunosuppressive. VEGF can inhibit the function of T cells, increase the recruitment of regulatory T cells (Tregs) and myeloid-derived suppressor cells (MDSCs), and hinder the differentiation and activation of dendritic cells (DCs). Recent studies have investigated the role of antiangiogenic agents in antitumor immunity, especially in recent 3 years. Therefore, it is necessary to update the role of targeting VEGF/VEGFR in antitumor immunity...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29774033/t-cell-co-stimulation-inhibition-of-immunosuppression
#2
Karl-Gösta Sundqvist
No abstract text is available yet for this article.
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29774032/protein-o-glcnac-modification-increases-in-white-blood-cells-after-a-single-bout-of-physical-exercise
#3
Tamás Nagy, Emese Kátai, Viktória Fisi, Tamás Tibor Takács, Antal Stréda, István Wittmann, Attila Miseta
Background: Protein O-linked N -acetylglucosamine (O-GlcNAc) is a dynamic posttranslational modification influencing the function of many intracellular proteins. Recently it was revealed that O-GlcNAc regulation is modified under various stress states, including ischemia and oxidative stress. Aside from a few contradictory studies based on animal models, the effect of exercise on O-GlcNAc is unexplored. Purpose: To evaluate O-GlcNAc levels in white blood cells (WBC) of human volunteers following physical exercise...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29774031/il-10-producing-b-cells-ability-to-induce-regulatory-t-cells-is-maintained-in-rheumatoid-arthritis
#4
Julie Mielle, Rachel Audo, Michael Hahne, Laurence Macia, Bernard Combe, Jacques Morel, Claire Daien
Despite growing evidence highlighting the relevance of increasing IL-10-producing B cells (B10+ cells) in autoimmune diseases, their functions in patients are still unknown. The aim of this study was to evaluate the functions of CpG-induced B10+ cells isolated from healthy controls (HC) and rheumatoid arthritis (RA) patients, on naïve T cell differentiation. We demonstrated that CpG-induced B10+ cells from HC drove naïve T cell differentiation toward regulatory T cells (Treg cells) and IL-10-producing T cells (Tr1) through IL-10 secretion and cellular contacts...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29774030/changes-in-the-tcr%C3%AE-repertoire-and-tumor-immune-signature-from-a-cutaneous-melanoma-patient-immunized-with-the-csf-470-vaccine-a-case-report
#5
Mariana Aris, Alicia Inés Bravo, María Betina Pampena, Paula Alejandra Blanco, Ibel Carri, Daniel Koile, Patricio Yankilevich, Estrella Mariel Levy, María Marcela Barrio, José Mordoh
The allogeneic therapeutic vaccine CSF-470 has demonstrated a significant benefit over medium-dose IFNα2b in the distant metastasis-free survival for stages IIB-IIC-III cutaneous melanoma patients in a randomized phase II/III clinical trial (CASVAC-0401, NCT01729663). At the end of the 2-year CSF-470 immunization protocol, patient #006 developed several lung and one subcutaneous melanoma metastases; this later was excised. In this report, we analyzed the changes throughout vaccination of immune populations in blood and in the tumor tissue, with special focus on the T-cell repertoire...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29774029/lfa-1-in-t-cell-migration-and-differentiation
#6
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/29774028/nlrp3-inflammasome-and-caspase-1-11-pathway-orchestrate-different-outcomes-in-the-host-protection-against-trypanosoma-cruzi-acute-infection
#7
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/29774027/clinical-remission-of-sight-threatening-non-infectious-uveitis-is-characterized-by-an-upregulation-of-peripheral-t-regulatory-cell-polarized-towards-t-bet-and-tigit
#8
Rose M Gilbert, Xiaozhe Zhang, Robert D Sampson, Michael R Ehrenstein, Dao X Nguyen, Mahid Chaudhry, Charles Mein, Nadiya Mahmud, Grazyna Galatowicz, Oren Tomkins-Netzer, Virginia L Calder, Sue Lightman
Background: Non-infectious uveitis can cause chronic relapsing and remitting ocular inflammation, which may require high dose systemic immunosuppression to prevent severe sight loss. It has been classically described as an autoimmune disease, mediated by pro-inflammatory Th1 and Th17 T-cell subsets. Studies suggest that natural immunosuppressive CD4+ CD25+ FoxP3+ T-regulatory cells (Tregs) are involved in resolution of inflammation and may be involved in the maintenance of clinical remission...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29774026/critical-role-of-alternative-m2-skewing-in-mir-155-deletion-mediated-protection-of-colitis
#9
Jintao Li, Ji Zhang, Hongxia Guo, Shimin Yang, Weiping Fan, Nan Ye, Zhiqiang Tian, Tiantian Yu, Guoping Ai, Zigang Shen, Haiyang He, Ping Yan, Hui Lin, Xue Luo, Hongli Li, Yuzhang Wu
Inflammatory bowel disease (IBD) is associated with dysregulation of both innate and adaptive immune response in the intestine. MicroRNA (miR)-155 is frequently expressed and functions in many immune cell types. Besides its function in adaptive immunity, miR-155 is a key regulator of the innate immune response in macrophages, dendritic cells, and even in epithelia cells. Although the roles of miR-155 within T and B lymphocytes in colitis have been reported, its function in innate immune cells has not been thoroughly examined...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29774025/co-stimulation-impaired-bone-marrow-derived-dendritic-cells-prevent-dextran-sodium-sulfate-induced-colitis-in-mice
#10
Carl Engman, Yesica Garciafigueroa, Brett Eugene Phillips, Massimo Trucco, Nick Giannoukakis
Dendritic cells (DC) are important in the onset and severity of inflammatory bowel disease (IBD). Tolerogenic DC induce T-cells to become therapeutic Foxp3+ regulatory T-cells (Tregs). We therefore asked if experimental IBD could be prevented by administration of bone marrow-derived DC generated under conventional GM-CSF/IL-4 conditions but in the presence of a mixture of antisense DNA oligonucleotides targeting the primary transcripts of CD40, CD80, and CD86. These cell products (which we call AS-ODN BM-DC) have demonstrated tolerogenic activity in preventing type 1 diabetes and preserving beta cell mass in new-onset type 1 diabetes in the NOD mouse strain, in earlier studies...
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
#11
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/29774023/ferritin-h-deficiency-in-myeloid-compartments-dysregulates-host-energy-metabolism-and-increases-susceptibility-to-mycobacterium-tuberculosis-infection
#12
Vineel P Reddy, Krishna C Chinta, Vikram Saini, Joel N Glasgow, Travis D Hull, Amie Traylor, Fernanda Rey-Stolle, Miguel P Soares, Rajhmun Madansein, Md Aejazur Rahman, Coral Barbas, Kievershen Nargan, Threnesan Naidoo, Pratistadevi K Ramdial, James F George, Anupam Agarwal, Adrie J C Steyn
Iron is an essential factor for the growth and virulence of Mycobacterium tuberculosis ( Mtb) . However, little is known about the mechanisms by which the host controls iron availability during infection. Since ferritin heavy chain (FtH) is a major intracellular source of reserve iron in the host, we hypothesized that the lack of FtH would cause dysregulated iron homeostasis to exacerbate TB disease. Therefore, we used knockout mice lacking FtH in myeloid-derived cell populations to study Mtb disease progression...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29774022/acute-zika-virus-infection-in-an-endemic-area-shows-modest-proinflammatory-systemic-immunoactivation-and-cytokine-symptom-associations
#13
Jéssica Barletto de Sousa Barros, Paulo Alex Neves da Silva, Rosemary de Carvalho Rocha Koga, Patrícia Gonzalez-Dias, José Rodrigues Carmo Filho, Patrícia Resende Alo Nagib, Verônica Coelho, Helder I Nakaya, Simone Gonçalves Fonseca, Irmtraut Araci Hoffmann Pfrimer
An early immune response to Zika virus (ZIKV) infection may determine its clinical manifestation and outcome, including neurological effects. However, low-grade and transient viremia limits the prompt diagnosis of acute ZIKV infection. We have investigated the plasma cytokine, chemokine, and growth factor profiles of 36 individuals from an endemic area displaying different symptoms such as exanthema, headache, myalgia, arthralgia, fever, hyperemia, swelling, itching, and nausea during early-phase infection...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29770141/unraveling-the-mechanisms-of-cutaneous-graft-versus-host-disease
#14
REVIEW
Pedro Santos E Sousa, Clare L Bennett, Ronjon Chakraverty
The skin is the most common target organ affected by graft-versus-host disease (GVHD), with severity and response to therapy representing important predictors of patient survival. Although many of the initiating events in GVHD pathogenesis have been defined, less is known about why treatment resistance occurs or why there is often a permanent failure to restore tissue homeostasis. Emerging data suggest that the unique immune microenvironment in the skin is responsible for defining location- and context-specific mechanisms of injury that are distinct from those involved in other target organs...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29770140/seventeen-year-journey-working-with-a-master
#15
Jinfang Zhu
It had been a great honor for me to work with the late Dr. William E. Paul for 17 years in the Laboratory of Immunology (LI) from 1998 until his passing in 2015. He was such a master in the immunology field. Under his outstanding guidance, my research has been focusing on transcriptional regulation of T helper (Th) cell differentiation, especially, on the role of a master transcription factor GATA3 during Th2 cell differentiation. Just as enormous scientific contributions of Dr. Paul (we all call him Bill) to the immunology community are far beyond his serving as the Chief of the LI, GATA3 also plays important roles in different lymphocytes at various developmental stages besides its critical functions in Th2 cells...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29770139/spermine-alleviates-acute-liver-injury-by-inhibiting-liver-resident-macrophage-pro-inflammatory-response-through-atg5-dependent-autophagy
#16
Shun Zhou, Jian Gu, Rui Liu, Song Wei, Qi Wang, Hongbing Shen, Yifan Dai, Haoming Zhou, Feng Zhang, Ling Lu
Liver-resident macrophages (Kupffer cells, KCs) and autophagy play critical roles in the pathogenesis of toxin-induced liver injury. Recent evidence indicates that autophagy can regulate macrophage M1/M2 polarization under different inflammatory conditions. Polyamines, including putrescine, spermidine, and spermine (SPM), are polycations with anti-oxidative, anti-aging, and cell autophagy induction properties. This study aimed to determine the mechanisms by which SPM protects against thioacetamide (TAA)-induced acute liver injury in a mouse model...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29770138/ny-eso-1-based-immunotherapy-of-cancer-current-perspectives
#17
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/29770137/gut-microbiota-confers-resistance-of-albino-oxford-rats-to-the-induction-of-experimental-autoimmune-encephalomyelitis
#18
Suzana Stanisavljević, Miroslav Dinić, Bojan Jevtić, Neda Đedović, Miljana Momčilović, Jelena Đokić, Nataša Golić, Marija Mostarica Stojković, Đorđe Miljković
Albino Oxford (AO) rats are extremely resistant to induction of experimental autoimmune encephalomyelitis (EAE). EAE is an animal model of multiple sclerosis, a chronic inflammatory disease of the central nervous system (CNS), with established autoimmune pathogenesis. The autoimmune response against the antigens of the CNS is initiated in the peripheral lymphoid tissues after immunization of AO rats with CNS antigens. Subsequently, limited infiltration of the CNS occurs, yet without clinical sequels. It has recently become increasingly appreciated that gut-associated lymphoid tissues (GALT) and gut microbiota play an important role in regulation and propagation of encephalitogenic immune response...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29770136/cd3%C3%AE%C2%B5-expression-defines-functionally-distinct-subsets-of-v%C3%AE-1-t-cells-in-patients-with-human-immunodeficiency-virus-infection
#19
Pádraic J Dunne, Christina O Maher, Michael Freeley, Katie Dunne, Andreea Petrasca, Judy Orikiiriza, Margaret R Dunne, Derval Reidy, Siobhan O'Dea, Aisling Loy, Jim Woo, Aideen Long, Thomas R Rogers, Fiona Mulcahy, Derek G Doherty
Human γδ T cells expressing the Vδ1 T cell receptor (TCR) recognize self and microbial antigens and stress-inducible molecules in a major histocompatibility complex-unrestricted manner and are an important source of innate interleukin (IL)-17. Vδ1 T cells are expanded in the circulation and intestines of patients with human immunodeficiency virus (HIV) infection. In this study, we show that patients with HIV have elevated frequencies, but not absolute numbers, of circulating Vδ1 T cells compared to control subjects...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29770135/mucosal-immunity-and-protective-efficacy-of-intranasal-inactivated-influenza-vaccine-is-improved-by-chitosan-nanoparticle-delivery-in-pigs
#20
Santosh Dhakal, Sankar Renu, Shristi Ghimire, Yashavanth Shaan Lakshmanappa, Bradley T Hogshead, Ninoshkaly Feliciano-Ruiz, Fangjia Lu, Harm HogenEsch, Steven Krakowka, Chang Won Lee, Gourapura J Renukaradhya
Annually, swine influenza A virus (SwIAV) causes severe economic loss to swine industry. Currently used inactivated SwIAV vaccines administered by intramuscular injection provide homologous protection, but limited heterologous protection against constantly evolving field viruses, attributable to the induction of inadequate levels of mucosal IgA and cellular immune responses in the respiratory tract. A novel vaccine delivery platform using mucoadhesive chitosan nanoparticles (CNPs) administered through intranasal (IN) route has the potential to elicit strong mucosal and systemic immune responses in pigs...
2018: Frontiers in Immunology
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