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https://www.readbyqxmd.com/read/28937034/effect-of-cordyceps-sinensis-on-the-treatment-of-experimental-autoimmune-encephalomyelitis-a-pilot-study-on-mice-model
#1
Shan-Shan Zhong, Ya-Juan Xiang, Pen-Ju Liu, Yang He, Ting-Ting Yang, Yang-Yang Wang, A Rong, Jun Zhang, Guang-Zhi Liu
BACKGROUND: As a traditional Chinese medicine, Cordyceps sinensis (CS) possesses a variety of immunoregulatory properties. This study aimed to explore the therapeutic potential of CS in a mice model of multiple sclerosis (MS)-experimental autoimmune encephalomyelitis (EAE). METHODS: Female C57BL/6 mice were immunized with myelin oligodendrocyte glycoprotein35-55to induce EAE, followed by an instant intragastric feeding with a low dosage of CS (low-CS group, n = 5), high dosage of CS (high-CS group, n = 5), or the same volume of normal saline (control group, n = 5)...
October 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28935847/cd56bright-nk-regulatory-cells-in-filgrastim-primed-donor-blood-or-marrow-products-regulate-chronic-gvhd-cbmtg-randomized-0601-study-results
#2
Amina Kariminia, Sabine Ivison, Bernard Ng, Jacob Rozmus, Susanna Sung, Avani Varshney, Mahmoud Aljurf, Silvy Lachance, Irwin Walker, Cindy Toze, Jeff Lipton, Stephanie J Lee, Jeff Szer, Richard Doocey, Ian Lewis, Clayton Smith, Naeen Chaudhri, Megan K Levings, Raewyn Broady, Gerald Devins, David Szwajcer, Ronan Foley, Sara Mostafavi, Steven Pavletic, Donna A Wall, Stephen Couban, Tony Panzarella, Kirk R Schultz
Randomized trials have conclusively shown higher rates of chronic graft-versus-host disease with filgrastim-stimulated apheresis peripheral blood as a donor source than unstimulated bone marrow. The Canadian Blood and Marrow Transplant Group conducted a phase 3 study of adults who received either filgrastim-stimulated apheresis peripheral blood or filgrastim-stimulated bone marrow from human leukocyte antigen-identical sibling donors. Because all donors received the identical filgrastim dosing schedule, this study allowed for a controlled evaluation of the impact of stem cell source on development of chronic graft-versus-host disease...
September 21, 2017: Haematologica
https://www.readbyqxmd.com/read/28931653/combined-ox40l-and-mtor-blockade-controls-effector-t-cell-activation-while-preserving-treg-reconstitution-after-transplant
#3
Victor Tkachev, Scott N Furlan, Benjamin Watkins, Daniel J Hunt, Hengqi Betty Zheng, Angela Panoskaltsis-Mortari, Kayla Betz, Melanie Brown, John B Schell, Katie Zeleski, Alison Yu, Ian Kirby, Sarah Cooley, Jeffrey S Miller, Bruce R Blazar, Duncan Casson, Phil Bland-Ward, Leslie S Kean
A critical question facing the field of transplantation is how to control effector T cell (Teff) activation while preserving regulatory T cell (Treg) function. Standard calcineurin inhibitor-based strategies can partially control Teffs, but breakthrough activation still occurs, and these agents are antagonistic to Treg function. Conversely, mechanistic target of rapamycin (mTOR) inhibition with sirolimus is more Treg-compatible but is inadequate to fully control Teff activation. In contrast, blockade of OX40L signaling has the capacity to partially control Teff activation despite maintaining Treg function...
September 20, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28929578/horizontal-transfer-of-mir-23a-from-hypoxic-tumor-cell-colonies-can-induce-angiogenesis
#4
T V Sruthi, Lincy Edatt, Grace R Raji, Haritha K, S Sharath Shankar, Vandana Shankar, Vishnu R, Aswini P, V B Sameer Kumar
Neo vessel formation by angiogenesis is an important event during many pathological conditions including cancer, where it is indispensable for tumor growth and survival. Although, various pro-angiogenic cytokines and soluble factors, secreted by tumor cells, have been reported to promote angiogenesis, recent studies have shown regulatory role of exosomes, secreted by tumor cells in the process of angiogenesis. These exosomes are capable of carrying nucleic acids, proteins etc. as their cargo. Under the light of these facts and considering the presence of miRNAs, the non-coding RNAs capable of regulating target gene expression, as one of the major cargos in the exosomes, we investigated, whether exosomes derived from normoxic and hypoxic tumor cell colonies exhibit difference in levels of miR-23∼27∼24 cluster members and if so, to check the significance of their horizontall transfer on the process of angiogenesis...
September 20, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28923634/variation-of-cd4-cd25-foxp3-regulatory-t-cells-and-th17-cells-in-the-peripheral-blood-of-human-liver-allograft-patients-with-long-term-survival
#5
G Shi, Q Zeng, Z Zhao, W Li, J Dou
BACKGROUND: Monitoring of peripheral blood (PB) lymphocyte subpopulation counts may be useful to underlie immune status after liver transplantation (LT). We aimed at exploring the variation of regulatory cells and Th17 in the PB of liver allograft patients with long-term survival. METHODS: Forty-two patients who took FK506 drugs were divided into 3 groups: patients who survived for 6 months to 3 years were in the Tac1 group (n = 15), those who survived for 3-10 years were in the Tac2 group (n = 15), and those who survived for >10 years were in the Tac3 group (n = 12)...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923424/depletion-of-regulatory-t-cells-by-anti-icos-antibody-enhances-anti-tumor-immunity-of-tumor-cell-vaccine-in-prostate-cancer
#6
Lijun Mo, Qianmei Chen, Xinji Zhang, Xiaojun Shi, Lili Wei, Dianpeng Zheng, Hongwei Li, Jimin Gao, Jinlong Li, Zhiming Hu
ICOS(+)Treg cells exert important immunosuppressive effects in tumor immunity. We adopt a combination approach of ICOS(+)Treg cells depletion with tumor cell vaccine to evaluate anti-tumor immunity in mouse prostate cancer model. Streptavidin (SA)-mGM-CSF surface-modified RM-1 cells were prepared as the vaccine and the mouse subcutaneous prostate tumor model was used to evaluate the immunity. Tumor growth, flow cytometry, immunohistochemistry, immunofluorescence and enzyme linked immunosorbent assay (ELISA) were performed to evaluate the therapeutic effects...
September 15, 2017: Vaccine
https://www.readbyqxmd.com/read/28922374/fractional-laser-exposure-induces-neutrophil-infiltration-n1-phenotype-into-the-tumor-and-stimulates-systemic-anti-tumor-immune-response
#7
Masayoshi Kawakubo, Shadmehr Demehri, Dieter Manstein
BACKGROUND: Ablative fractional photothermolysis (aFP) using a CO2 laser generates multiple small diameter tissue lesions within the irradiation field. aFP is commonly used for a wide variety of dermatological indications, including treatment of photodamaged skin and dyschromia, drug delivery and modification of scars due to acne, surgical procedures and burns. In this study we explore the utility of aFP for treating oncological indications, including induction of local tumor regression and inducing anti-tumor immunity, which is in marked contrast to current indications of aFP...
2017: PloS One
https://www.readbyqxmd.com/read/28921585/allergooncology-opposite-outcomes-of-immune-tolerance-in-allergy-and-cancer
#8
E Jensen-Jarolim, H J Bax, R Bianchini, S Crescioli, T R Daniels-Wells, D Dombrowicz, E Fiebiger, H J Gould, S Irshad, J Janda, D H Josephs, F Levi-Schaffer, L O Mahony, G Pellizzari, M L Penichet, F Redegeld, F Roth-Walter, J Singer, E Untersmayr, L Vangelista, S N Karagiannis
While desired for the cure of allergy, regulatory immune cell subsets and non-classical Th2-biased inflammatory mediators in the tumour microenvironment can contribute to immune suppression and escape of tumours from immunological detection and clearance. A key aim in the cancer field is therefore to design interventions that can break immunological tolerance and halt cancer progression, whereas on the contrary allergen immunotherapy exactly aims to induce tolerance. In this position paper, we review insights on immune tolerance derived from allergy and from cancer inflammation, focusing on what is known about the roles of key immune cells and mediators...
September 16, 2017: Allergy
https://www.readbyqxmd.com/read/28919885/trypanosoma-cruzi-evades-the-complement-system-as-an-efficient-strategy-to-survive-in-the-mammalian-host-the-specific-roles-of-host-parasite-molecules-and-trypanosoma-cruzi-calreticulin
#9
REVIEW
Galia Ramírez-Toloza, Arturo Ferreira
American Trypanosomiasis is an important neglected reemerging tropical parasitism, infecting about 8 million people worldwide. Its agent, Trypanosoma cruzi, exhibits multiple mechanisms to evade the host immune response and infect host cells. An important immune evasion strategy of T. cruzi infective stages is its capacity to inhibit the complement system activation on the parasite surface, avoiding opsonizing, immune stimulating and lytic effects. Epimastigotes, the non-infective form of the parasite, present in triatomine arthropod vectors, are highly susceptible to complement-mediated lysis while trypomastigotes, the infective form, present in host bloodstream, are resistant...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28917991/enhanced-expression-of-pd-l1-and-ifn-%C3%AE-on-dendritic-cells-is-associated-with-bcg-induced-th2-inhibition
#10
A C C Gouveia, F G Braga, M Mota, F M C Silva, A S S Brugiolo, E E Oliveira, M C Ayupe, H C Teixeira, A P Ferreira
Accumulating evidence indicates that the exposure to Mycobacterium bovis bacillus Calmette-Guérin (BCG) prevents the development of allergy and the airway dendritic cells (DCs) may be involved in this protective effect. However, studies to better characterize the specific interactions between BCG and DCs and their role in this mycobacteria-mediated Th2 cell suppression are still ongoing. This study aimed to evaluate the effect of the neonatal BCG vaccination in the innate immune response in a mouse model of ovalbumin (OVA)-induced airway inflammation...
September 14, 2017: Cytokine
https://www.readbyqxmd.com/read/28914500/comprehensive-proteomics-analysis-of-exosomes-derived-from-human-seminal-plasma
#11
C Yang, W-B Guo, W-S Zhang, J Bian, J-K Yang, Q-Z Zhou, M-K Chen, W Peng, T Qi, C-Y Wang, C-D Liu
Exosomes are membranous nanovesicles of endocytic origin that carry and transfer regulatory bioactive molecules and mediate intercellular communication between cells and tissues. Although seminal exosomes have been identified in human seminal plasma, their exact composition and possible physiologic function remain unknown. The objective of this study was to perform a comprehensive proteomics analysis of exosomes derived from human seminal plasma. Seminal exosomes were isolated and purified from 12 healthy donors using a 30% sucrose cushion-based exosome-isolation protocol, followed by characterization by western blot, transmission electron microscopy, and nanoparticle tracking analysis before performing extensive liquid chromatography tandem mass spectrometry proteomics analysis...
September 2017: Andrology
https://www.readbyqxmd.com/read/28912774/therapeutic-antibodies-to-kir3dl2-and-other-target-antigens-on-cutaneous-t-cell-lymphomas
#12
REVIEW
Christian Schmitt, Anne Marie-Cardine, Armand Bensussan
KIR3DL2 is a member of the killer cell immunoglobulin-like receptor (KIR) family that was initially identified at the surface of natural killer (NK) cells. KIR3DL2, also known as CD158k, is expressed as a disulfide-linked homodimer. Each chain is composed of three immunoglobulin-like domains and a long cytoplasmic tail containing two immunoreceptor tyrosine-based inhibitory motifs. Beside its expression on NK cells, it is also found on rare circulating T lymphocytes, mainly CD8(+). Although the KIR gene number varies between haplotype, KIR3DL2 is a framework gene present in all individuals...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28900605/histopathological-analysis-of-infiltrating-t-cell-subsets-in-acute-t-cell-mediated-rejection-in-the-kidney-transplant
#13
Francisco Salcido-Ochoa, Susan Swee-Shan Hue, Siyu Peng, Zhaoxiang Fan, Reiko Lixiang Li, Jabed Iqbal, John Carson Allen, Alwin Hwai Liang Loh
AIM: To compare the differential immune T cell subset composition in patients with acute T cell-mediated rejection in the kidney transplant with subset composition in the absence of rejection, and to explore the association of their respective immune profiles with kidney transplant outcomes. METHODS: A pilot cross-sectional histopathological analysis of the immune infiltrate was performed using immunohistochemistry in a cohort of 14 patients with acute T cell-mediated rejection in the kidney transplant and 7 kidney transplant patients with no rejection subjected to biopsy to investigate acute kidney transplant dysfunction...
August 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28898532/immunological-efficacy-of-herbal-medicines-in-prostate-cancer-patients-treated-by-personalized-peptide-vaccine
#14
Noriko Koga, Fukuko Moriya, Kayoko Waki, Akira Yamada, Kyogo Itoh, Masanori Noguchi
This randomized phase II study investigated the immunological efficacy of herbal medicines (HMs) using Hochu-ekki-to and Keishi-bukuryo-gan in combination with personalized peptide vaccination (PPV) for castration-resistant prostate cancer (CRPC). Seventy patients with CRPC were assigned to two arms; PPV plus HMs or PPV alone. Two to four peptides were chosen from 31 peptides derived from cancer antigens for the eight-time subcutaneous injection of PPV according to the patient's human leukocyte antigen type and levels of antigen-specific immunoglobulin G (IgG) titer before PPV treatment...
September 12, 2017: Cancer Science
https://www.readbyqxmd.com/read/28895168/9-cis-retinoic-acid-induces-a-distinct-regulatory-dendritic-cell-phenotype-that-modulates-murine-delayed-type-allergy
#15
Lea-Franziska Kraus, Natalie Scheurmann, Denis F Frenzel, Alpaslan Tasdogan, Johannes M Weiss
BACKGROUND: Hand eczema, which is frequently caused by delayed-type allergy, is treated with 9-cis-retinoic acid (9cisRA). However, knowledge on how 9cisRA modulates skin immunity is sparse. OBJECTIVE: As dendritic cells (DCs) are central in the pathogenesis of contact allergy, we investigated 9cisRA modulation of DC function in murine contact hypersensitivity (CHS). METHODS: 9cisRA-differentiated DCs (9cisRA-DCs) were analysed for phenotype and function...
September 12, 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/28894974/foxp3-t-cells-are-present-in-kidney-biopsy-samples-in-children-with-tubulointerstitial-nephritis-and-uveitis-syndrome
#16
Sari H Rytkönen, Petri Kulmala, Helena Autio-Harmainen, Pekka Arikoski, Kira Endén, Janne Kataja, Tuomo Karttunen, Matti Nuutinen, Timo Jahnukainen
BACKGROUND: Tubulointerstitial nephritis (TIN) is an inflammatory disease of unknown pathogenesis. To evaluate a possible role of regulatory T cells (Tregs) in the pathophysiology of TIN with (TINU) and without uveitis, we investigated the presence and quantity of FOXP3(+) T regulatory lymphocytes in diagnostic kidney biopsies from pediatric patients. METHODS: A total of 33 patients (14 TIN and 19 TINU) were enrolled. The quantity of CD4(+), FOXP3(+) and double-positive T cells in formalin-fixed kidney biopsies was determined using double label immunohistochemistry with anti-human CD4 and FOXP3 antibodies...
September 11, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28894447/the-microbial-metabolite-butyrate-induces-expression-of-th1-associated-factors-in-cd4-t-cells
#17
Meike Kespohl, Niyati Vachharajani, Maik Luu, Hani Harb, Sabine Pautz, Svenja Wolff, Nina Sillner, Alesia Walker, Philippe Schmitt-Kopplin, Thomas Boettger, Harald Renz, Stefan Offermanns, Ulrich Steinhoff, Alexander Visekruna
Short-chain fatty acids (SCFAs), which are generated by the bacterial fermentation of dietary fibers, promote expansion of regulatory T cells (Tregs). Potential therapeutic value of SCFAs has been recently highlighted in the experimental models of T cell-mediated autoimmunity and allergic inflammation. These studies suggest that physiological intestinal concentrations of SCFAs within the millimolar range are crucial for dampening inflammation-mediated processes. Here, we describe opposing effects of SCFAs on T cell-mediated immune responses...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28892206/il-33-and-ige-stimulate-mast-cell-production-of-il-2-and-regulatory-t-cells-expansion-in-allergic-dermatitis
#18
Pazit Salamon, Irit Shefler, Itay Moshkovits, Ariel Munitz, Deborah Horwitz Klotzman, Yoseph A Mekori, Alon Y Hershko
BACKGROUND: We have previously shown that mast cells (MCs) suppress chronic allergic dermatitis in mice. The underlying mechanism involves MC-derived IL-2, which supports regulatory T cell (Treg) response at the site of inflammation. However, it is not clear what are the factors that drive MCs to produce IL-2. OBJECTIVE: To understand the mechanisms that lead to IL-2 production from MCs in chronic allergic dermatitis. METHODS: Isolated murine bone marrow derived-MCs (BMMCs) were incubated with various stimulators and IL-2 production was assessed by RT-PCR and ELISA...
September 11, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28891065/il4-induced-gene-1-is-secreted-at-the-immune-synapse-and-modulates-tcr-activation-independently-of-its-enzymatic-activity
#19
Aude Aubatin, Nouhoum Sako, Xavier Decrouy, Emmanuel Donnadieu, Valérie Molinier-Frenkel, Flavia Castellano
Amino-acid catabolizing enzymes produced by mononuclear phagocytes play a central role in regulating the immune response. The mammalian phenylalanine-catabolizing enzyme IL4-induced gene 1 (IL4I1) inhibits effector T lymphocyte proliferation and facilitates regulatory T-cell development. IL4I1 expression by macrophages of various human tumors may affect patient prognosis as it facilitates tumor escape from the T-cell response in murine models. Its enzymatic activity appears to participate in its effects, but some actions of IL4I1 remain unclear...
September 10, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28890870/treg-th17-cell-balance-and-phytohaemagglutinin-activation-of-t-lymphocytes-in-peripheral-blood-of-systemic-sclerosis-patients
#20
Ekaterina Krasimirova, Tsvetelina Velikova, Ekaterina Ivanova-Todorova, Kalina Tumangelova-Yuzeir, Desislava Kalinova, Vladimira Boyadzhieva, Nikolay Stoilov, Tsvetelina Yoneva, Rasho Rashkov, Dobroslav Kyurkchiev
AIM: To investigate T-cell activation, the percentage of peripheral T regulatory cells (Tregs), Th17 cells and the circulating cytokine profile in systemic sclerosis (SSc). METHODS: We enrolled a total of 24 SSc patients and 16 healthy controls in the study and divided the patients as having diffuse cutaneous SSc (dcSSc, n = 13) or limited cutaneous SSc (lcSSc, n = 11). We performed a further subdivision of the patients regarding the stage of the disease - early, intermediate or late...
August 20, 2017: World Journal of Experimental Medicine
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