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https://www.readbyqxmd.com/read/29454391/type-1-diabetes-susceptibility-alleles-are-associated-with-distinct-alterations-in-the-gut-microbiota
#1
Jane A Mullaney, Juliette E Stephens, Mary-Ellen Costello, Cai Fong, Brooke E Geeling, Patrick G Gavin, Casey M Wright, Timothy D Spector, Matthew A Brown, Emma E Hamilton-Williams
BACKGROUND: Dysbiosis of the gut microbiota has been implicated in the pathogenesis of many autoimmune conditions including type 1 diabetes (T1D). It is unknown whether changes in the gut microbiota observed in T1D are due to environmental drivers, genetic risk factors, or both. Here, we have performed an analysis of associations between the gut microbiota and T1D genetic risk using the non-obese diabetic (NOD) mouse model of T1D and the TwinsUK cohort. RESULTS: Through the analysis of five separate colonies of T1D susceptible NOD mice, we identified similarities in NOD microbiome that were independent of animal facility...
February 17, 2018: Microbiome
https://www.readbyqxmd.com/read/29445381/proteins-of-tnf-%C3%AE-and-il6-pathways-are-elevated-in-serum-of-type-1-diabetes-patients-with-microalbuminuria
#2
Sharad Purohit, Ashok Sharma, Wenbo Zhi, Shan Bai, Diane Hopkins, Leigh Steed, Bruce Bode, Stephen W Anderson, John Chip Reed, R Dennis Steed, Jin-Xiong She
Soluble cytokine receptors may play an important role in development of microalbuminuria (MA) in type-1 diabetes (T1D). In this study, we measured 12 soluble receptors and ligands from TNF-α/IL6/IL2 pathways in T1D patients with MA ( n = 89) and T1D patients without MA ( n = 483) participating in the PAGODA study. Twelve proteins in the sera from T1D patients with and without MA were measured using multiplex Luminex assays. Ten serum proteins (sTNFR1, sTNFR2, sIL2Rα, MMP2, sgp130, sVCAM1, sIL6R, SAA, CRP, and sICAM1) were significantly elevated in T1D patients with MA...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29444185/humoral-and-cell-mediated-immune-responses-after-a-booster-dose-of-hbv-vaccine-in-hiv-infected-children-adolescents-and-young-adults
#3
Vania Giacomet, Michela Masetti, Pilar Nannini, Federica Forlanini, Mario Clerici, Gian Vincenzo Zuccotti, Daria Trabattoni
OBJECTIVE: HBV vaccine induces protective antibodies only in 23-56% of HIV-infected children. The aim of our study is to evaluate the immunologic effects of a booster dose of HBV vaccine in HIV-infected youth. DESIGN: 53 young HIV-infected patients in whom HBV vaccination did not elicit protective Ab titers were enrolled. All patients were on ART with optimal immunological and viral response. METHOD: All patients received a booster dose of HBV vaccine (HBVAXPRO 10 μg i...
2018: PloS One
https://www.readbyqxmd.com/read/29424778/persistence-of-memory-b-cell-and-t-cell-responses-to-the-quadrivalent-hpv-vaccine-in-hiv-infected-children
#4
Adriana Weinberg, Sharon Huang, A B Moscicki, Afred Saah, Myron J Levin
OBJECTIVE: To determine the magnitude and persistence of quadrivalent human papillomavirus (HPV)16 and HPV18 B-cell and T-cell memory after three or four doses of quadrivalent HPV vaccine (QHPV) in HIV-infected children. METHODS: Seventy-four HIV-infected children immunized with four doses and 23 with three doses of QHPV had HPV16 and HPV18 IgG B-cell and IFNγ and IL2 T-cell ELISPOT performed at 2, 3.5 and 4-5 years after the last dose. RESULTS: HPV16 and HPV18 T-cell responses were similar in both treatment groups, with higher responses to HPV16 vs...
February 8, 2018: AIDS
https://www.readbyqxmd.com/read/29421812/serum-soluble-interleukin-2-receptor-level-as-a-marker-of-acute-rejection-in-pediatric-kidney-transplant-recipients
#5
Amal M Hagras, Doaa M Salah, Dina H Ahmed, Omnia K Abd Elaal, Hany Ahmed Fouad Elghobary, Fatina I Fadel
BACKGROUND: Despite advances in immunosuppression, acute allograft rejection remains one of the key factors affecting patient and graft survival in pediatric kidney transplantation. The aim of the study is to evaluate the role of serum soluble IL2 receptor (sIL2R) level as a noninvasive assessment parameter of acute rejection (AR). METHOD: Serum sIL2R level was measured (using enzyme-linked immune-sorbent assay technique) in 60 pediatric kidney transplant recipients (30 recipients with AR and 30 transplant recipients with stable graft function)...
February 8, 2018: Nephron
https://www.readbyqxmd.com/read/29407331/safety-and-efficacy-of-induction-therapy-with-thymoglobulin-in-ab0-incompatible-kidney-transplantation
#6
A L Herzog, C Kalogirou, C Wanner, K Lopau
INTRODUCTION: Data suggest an additional role of T cells in antibody-mediated rejections. In 2001 a protocol for AB0-incompatible kidney transplantation based on B-cell-depleting anti-CD20 antibody rituximab, antigen-specific blood group IgG immunoadsorption, intravenous immunoglobulins, and triple immunosuppression was introduced in Europe, which used induction therapy with the use of interleukin-2 receptor antibody (IL2-RA) basiliximab. We used thymoglobulin in AB0-incompatible patients as induction in the face of high immunologic risk...
January 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29396486/in-vivo-microbiome-and-associated-immune-markers-new-insights-into-the-pathogenesis-of-vaginal-dysbiosis
#7
Giuseppina Campisciano, Nunzia Zanotta, Danilo Licastro, Francesco De Seta, Manola Comar
The microbiota fulfils a key role in the training and function of the immune system, which contributes to the symbiosis between the host and complex microbial communities. In this study, we characterized the interplay between vaginal bacteria and local immune mediators during dysbiosis in selected women of reproductive age who were grouped according to Nugent's criteria. The abundance of Gardnerella vaginalis and Bifidobacterium breve was increased in the intermediate dysbiotic status, while the presence of a plethora of non-resident bacteria characterized the group with overt vaginosis...
February 2, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29392960/a-randomized-phase-ii-trial-of-interleukin-2-and-interferon-%C3%AE-plus-bevacizumab-versus-interleukin-2-and-interferon-%C3%AE-in-metastatic-renal-cell-carcinoma-mrcc-results-from-the-danish-renal-cancer-group-darenca-study-1
#8
Frede Donskov, Niels Viggo Jensen, Torben Smidt-Hansen, Line Brøndum, Poul Geertsen
BACKGROUND: Interleukin-2 (IL2)-based immunotherapy is curative for a small subset of patients with metastatic renal-cell carcinoma (mRCC). Preclinical data suggests that bevacizumab (BEV), a humanized anti-VEGF monoclonal antibody, has potential immunomodulatory effects by permitting efficient natural killer (NK) cell-mediated killing and by reverting immune suppression. PATIENT AND METHODS: We performed a randomized phase II study comparing IL2/IFN (interferon)/BEV with IL2/IFN in favourable/intermediate-risk mRCC patients...
February 2, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29370721/intratumoral-administration-of-il2-and-tnf-based-fusion-proteins-cures-cancer-without-establishing-protective-immunity
#9
Barbara Ziffels, Francesca Pretto, Dario Neri
AIM: The combination of tumor-targeting IL2- and TNF-based antibody-cytokine fusions has exhibited encouraging results in mouse and men. Here, we studied their combination to assess efficacy and mechanism of action in four different immunocompetent mouse models of cancer. METHODS: Mice receiving a single intratumoral injection of F8-IL2, F8-TNF or the combination were investigated for tumor-infiltrating leukocytes and rechallenged when cured. RESULTS: In three models, a proportion of treated animals could be cured, most probably by infiltrating NK and CD8+ T cells...
March 2018: Immunotherapy
https://www.readbyqxmd.com/read/29349871/dsp30-and-interleukin-2-as-a-mitotic-stimulant-in-b-cell-disorders-including-those-with-a-low-disease-burden
#10
Karen A Dun, Louise A Riley, Giuseppe Diano, Leanne B Adams, Eleanor Chiu, Archna Sharma
Chromosome abnormalities detected during cytogenetic investigations for B-cell malignancy offer prognostic information that can have wide ranging clinical impacts on patients. These impacts may include monitoring frequency, treatment type and disease staging level. The use of the synthetic oligonucleotide DSP30 combined with interleukin 2 (IL2) has been described as an effective mitotic stimulant in B-cell disorders, predominantly in chronic lymphocytic leukaemia (CLL) but also a range of other B-cell malignancies...
January 19, 2018: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/29327244/antibody-based-delivery-of-tumor-necrosis-factor-l19-tnf%C3%AE-and-interleukin-2-l19-il2-to-tumor-associated-blood-vessels-has-potent-immunological-and-anticancer-activity-in-the-syngeneic-j558l-balb-c-myeloma-model
#11
Hans D Menssen, Ulf Harnack, Ulrike Erben, Dario Neri, Burkhard Hirsch, Horst Dürkop
PURPOSE: To analyze the impact of TNFα or IL2 on human lymphocytes in vitro and the anti-tumor and immune-modifying effects of L19-IL2 and L19-TNFα on subcutaneously growing J558L myeloma in immunocompetent mice. METHODS: PBMCs from three healthy volunteers were incubated with IL2, TNFα, or with IL2 plus addition of TNFα (final 20 h). BALB/c J558L mice with subcutaneous tumors were treated with intravenous L19-TNFα plus L19-IL2, or controls. Tumor growth and intra- and peri-tumoral tissues were analyzed for micro-vessel density, necrosis, immune cell composition, and PD1 or PD-L1 expressing cells...
January 11, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29314730/transcription-factors-early-growth-response-gene-egr-2-and-3-control-inflammatory-responses-of-tolerant-t-cells
#12
Becky Omodho, Tizong Miao, Alistair L J Symonds, Randeep Singh, Suling Li, Ping Wang
INTRODUCTION: Impaired proliferation and production of IL2 are the hallmarks of experimental T cell tolerance. However, in most autoimmune diseases, auto-reactive T cells do not display hyper proliferation, but inflammatory phenotypes. METHODS: We have now demonstrated that the transcription factors Egr2 and 3 are important for the control of inflammatory cytokine production by tolerant T cells, but not for tolerance induction. RESULTS: In the absence of Egr2 and 3, T cell tolerance, as measured by impaired proliferation and production of IL2, can still be induced, but tolerant T cells produced high levels of inflammatory cytokines...
January 3, 2018: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/29306244/tnf-alpha-863c-a-promoter-and-tnfrii-196t-g-exonic-variationsmay-be-risk-factors-for-juvenile-idiopathic-arthritis
#13
Bahadır Batar, Sezen Özman, Kenan Barut, Özgür Kasapçopur, Mehmet Güven
Background/aim: Juvenile idiopathic arthritis (JIA) is a chronic complex autoimmune disease. Genetic and environmental factors increase the risk of JIA. It is accepted that alterations in immune system pathways play an important role in the pathogenesis of JIA. The aim of the study was to investigate the possible association between immune system regulatory gene polymorphisms and JIA in Turkish patients. Materials and methods: We analyzed eight polymorphisms, TNF-alpha-863 C > A, TNFRII 196 T > G, IL2-631 G > A, IL13-1112 C > T, CCR2 190 G > A, CCR5delta32, CTLA4-1661 A > G, and PTPN22 1858 C > T, in 76 patients with JIA and in 80 healthy controls, who were of a similar age and same sex...
December 19, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29295696/antibody-based-epcam-targeted-therapy-of-cancer-review-and-update
#14
Shirin Eyvazi, Safar Farajnia, Siavoush Dastmalchi, Farzad Kanipour, Habib Zarredar, Mojgan Bandehpour
Todays, after four decades of the discovery of monoclonal antibodies by Kohler and Milstein in 1975, a dozen of antibodies are used in cancer targeted therapy with different strategies. The success of these antibodies depends on the specificity of antigens expressed on the cancer cells. Epithelial cell adhesion molecule (EpCAM), a homophilic cell-cell adhesion glycoprotein is a well- known tumor antigen, which expresses on epithelial tumors and circulating tumor cells as well as cancer stem cells. The EpCAM signaling pathway is associated with proliferation, differentiation and adhesion of epithelial cancer cells...
January 1, 2018: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/29288696/cytokine-gene-polymorphisms-in-iraqi-arabs
#15
Ali H Ad'hiah, Zahra'a A Ahmed, Milad A Al-Naseri, Ehab D Salman, Osama B Al-Saffar, Hiba S Ahmed, Talib A Hussain, Ekhlass M Idan, Ibtesam B Hassan, Batool A Shihab, Lateef O Mohammed, Fatima S Al-Nasiri
In this report, 224 unrelated healthy Iraqi Arabs (102 males and 122 females) were genotyped for 22 SNPs (single nucleotide polymorphisms) belong to 13 cytokine genes (IL1A, IL1B, IL1RA, IL1R, IL2, IL4, IL4R, IL6, IL10, IL12, IFNG, TNFA and TGFB1). The method of detection was PCR-SSP (polymerase chain reaction-sequence specific primer). The data were presented in terms of allele and genotype frequencies. Two-locus haplotype frequencies were also estimated for some SNPs. Genotype frequencies of detected cytokine gene polymorphisms are available in the Database of Allele Frequencies Net under the AFND number 3422 and the population name "Iraq Arab Cytokine"...
December 27, 2017: Human Immunology
https://www.readbyqxmd.com/read/29287970/closed-system-manufacturing-of-cd19-and-dual-targeted-cd20-19-chimeric-antigen-receptor-t-cells-using-the-clinimacs-prodigy-device-at-an-academic-medical-center
#16
Fenlu Zhu, Nirav Shah, Huiqing Xu, Dina Schneider, Rimas Orentas, Boro Dropulic, Parameswaran Hari, Carolyn A Keever-Taylor
BACKGROUND AIMS: Multiple steps are required to produce chimeric antigen receptor (CAR)-T cells, involving subset enrichment or depletion, activation, gene transduction and expansion. Open processing steps that increase risk of contamination and production failure are required. This complex process requires skilled personnel and costly clean-room facilities and infrastructure. Simplified, reproducible CAR-T-cell manufacturing with reduced labor intensity within a closed-system is highly desirable for increased availability for patients...
December 26, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29286140/identification-of-key-genes-implicated-in-the-suppressive-function-of-human-foxp3-cd25-cd4-regulatory-t-cells-through-the-analysis-of-time%C3%A2-series-data
#17
Xiaofeng Bai, Hua Shi, Mingxi Yang, Yuanlin Wang, Zhaolin Sun, Shuxiong Xu
Human forkhead box P3 (FOXP3)+ cluster of differentiation (CD)25+CD4+ regulatory T cells (Tregs) are a type of T cell that express CD4, CD25 and FOXP3, which are critical for maintaining immune homeostasis. The present study aimed to determine the mechanisms underlying Treg function. The GSE11292 dataset was downloaded from the Gene Expression Omnibus, which included data from Treg cells at 19 time points (0‑360 min) with an equal interval of 20 min, and corresponding repeated samples. However, data for Treg cells at time point 120 min were missing...
December 29, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29284469/both-inflammatory-and-regulatory-cytokine-responses-to-malaria-are-blunted-with-increasing-age-in-highly-exposed-children
#18
Lila Farrington, Hilary Vance, John Rek, Mary Prahl, Prasanna Jagannathan, Agaba Katureebe, Emmanuel Arinaitwe, Moses R Kamya, Grant Dorsey, Margaret E Feeney
BACKGROUND: Young children are at greatest risk for malaria-associated morbidity and mortality. The immune response of young children differs in fundamental ways from that of adults, and these differences likely contribute to the increased susceptibility of children to severe malaria and to their delayed development of immunity. Elevated levels of pro-inflammatory cytokines and chemokines in the peripheral blood during acute infection contribute to the control of parasitaemia, but are also responsible for much of the immunopathology seen during symptomatic disease...
December 29, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29282904/human-t-cell-responses-to-dengue-and-zika-virus-infection-compared-to-dengue-zika-coinfection
#19
Jessica Badolato-Corrêa, Juan Camilo Sánchez-Arcila, Thiara Manuele Alves de Souza, Luciana Santos Barbosa, Priscila Conrado Guerra Nunes, Monique da Rocha Queiroz Lima, Mariana Gandini, Ana Maria Bispo de Filippis, Rivaldo Venâncio da Cunha, Elzinandes Leal de Azeredo, Luzia Maria de-Oliveira-Pinto
INTRODUCTION: Zika virus (ZIKV) and dengue virus (DENV) co-circulated during latest outbreaks in Brazil, hence, it is important to evaluate the host cross-reactive immune responses to these viruses. So far, little is known about human T cell responses to ZIKV and no reports detail adaptive immune responses during DENV/ZIKV coinfection. METHODS: Here, we studied T cells responses in well-characterized groups of DENV, ZIKV, or DENV/ZIKV infected patients and DENV-exposed healthy donors...
December 28, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/29233784/altered-natural-killer-cell-cytokine-profile-in-type-2-autoimmune-hepatitis
#20
Dalila Mele, Grazia Bossi, Giuseppe Maggiore, Barbara Oliviero, Stefania Mantovani, Beatrice Bonelli, Mario U Mondelli, Stefania Varchetta
Type 2 autoimmune hepatitis (AIH-2) is a rare disease presenting in early childhood. The immunopathogenetic mechanisms are poorly characterized, although a defect of regulatory T cells (Treg) has been shown. There is virtually no information on innate immune responses and natural killer (NK) cells in particular. We have performed an extended immunophenotypic and functional analysis of NK cells in children with AIH-2. We show that NK cell frequency is reduced in this setting and that the balance between NK activating and inhibitory receptors is skewed toward activation...
December 9, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
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