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https://www.readbyqxmd.com/read/29445365/-babesia-microti-infection-changes-host-spleen-architecture-and-is-cleared-by-a-th1-immune-response
#1
Vitomir Djokic, Lavoisier Akoolo, Nikhat Parveen
Babesia microti is a malaria-like parasite, which infects ∼2000 people annually, such that babesiosis is now a notifiable disease in the United States. Immunocompetent individuals often remain asymptomatic and are tested only after they feel ill. Susceptible C3H/HeJ mice show several human-like disease manifestations and are ideal to study pathogenesis of Babesia species. In this study, we examined parasitemia of B. microti at different time points and assessed its impact on hemoglobin levels in blood, on spleen pathology and overall immune response in C3H/HeJ mice...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29426881/activated-t-follicular-helper-like-cells-are-released-into-blood-after-oral-vaccination-and-correlate-with-vaccine-specific-mucosal-b-cell-memory
#2
Ana Cárdeno, Maria K Magnusson, Marianne Quiding-Järbrink, Anna Lundgren
T follicular helper (Tfh)-like cells with potent B-cell helping ability are mobilized into human circulation after parenteral vaccination and are generally held to reflect ongoing germinal center reactions. However, whether mucosal vaccination induces systemic Tfh responses and how such responses may relate to IgA production are unknown. We investigated the frequencies, phenotype and function of circulating Tfh-like CD4+CXCR5+ T cells (cTfh) in adults receiving an oral inactivated enterotoxigenic Escherichia coli vaccine...
February 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29424310/elevated-interleukin-37-expression-associated-with-disease-activity-in-hla-b27-associated-anterior-uveitis-and-idiopathic-anterior-uveitis
#3
B Zhao, S Zhang, W Chen, R Zhang, R Jiang, R Zhang, L Chen
BACKGROUND & OBJECTIVE: Interleukin 37 (IL-37) is an important regulator of the anti-inflammatory T-cell response. In this study, we investigated its expression and function in peripheral blood mononuclear cells (PBMCs) of patients with HLA-B27 associated acute anterior uveitis (AAU) and idiopathic AAU. METHODS: 15 patients with HLA-B27-associated AAU, 10 patients with idiopathic AAU and 22 controls were recruited to this study from August 2013 to December 2016...
February 7, 2018: Current Molecular Medicine
https://www.readbyqxmd.com/read/29416693/serum-levels-of-adipokines-and-cytokines-in-psoriasis-patients-a-systematic-review-and-meta-analysis
#4
Fan Bai, Wen Zheng, Yan Dong, Juan Wang, Malgorzata A Garstka, Ruilian Li, Jingang An, Huiqun Ma
Purpose: To evaluate the association of serum levels of adipokines and cytokines with psoriasis. Materials and Methods: A comprehensive literature search was performed in PubMed, ScienceDirect and Web of Science for the available relevant studies published before December 1, 2016. Differences in serum marker levels between patients and controls were pooled as standardized mean differences (SMDs) with 95% confidence interval to combine the effect estimations. We also conducted stratified analysis, meta-regression analysis and sensitivity analysis...
January 2, 2018: Oncotarget
https://www.readbyqxmd.com/read/29408220/a-potent-tilapia-secreted-granulin-peptide-enhances-the-survival-of-transgenic-zebrafish-infected-by-vibrio-vulnificus-via-modulation-of-innate-immunity
#5
Sheng-Han Wu, Hong-Jie Lin, Wen-Fu Lin, Jen-Leih Wu, Hong-Yi Gong
Progranulin (PGRN) is a multi-functional growth factor that mediates cell proliferation, survival, migration, tumorigenesis, wound healing, development, and anti-inflammation activity. A novel alternatively spliced transcript from the short-form PGRN1 gene encoding a novel, secreted GRN peptide composed of 20-a.a. signal peptide and 41-a.a. GRN named GRN-41 was identified to be abundantly expressed in immune-related organs including spleen, head kidney, and intestine of Mozambique tilapia. The expression of GRN-41 and PGRN1 were further induced in the spleen of tilapia challenged with Vibrio vulnificus at 3 h post infection (hpi) and 6 hpi, respectively...
February 2, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29397904/mif-promotes-a-differential-th1-th2-th17-inflammatory-response-in-human-primary-cell-cultures-predominance-of-th17-cytokine-profile-in-pbmc-from-healthy-subjects-and-increase-of-il-6-and-tnf-%C3%AE-in-pbmc-from-active-sle-patients
#6
Ulises De la Cruz-Mosso, Trinidad García-Iglesias, Richard Bucala, Iris Estrada-García, Laura González-López, Sergio Cerpa-Cruz, Isela Parra-Rojas, Jorge Iván Gámez-Nava, Edsaúl Emilio Pérez-Guerrero, José Francisco Muñoz-Valle
Macrophage migration Inhibitory Factor (MIF) is a cytokine associated with the pathogenesis of autoimmune inflammatory diseases. There is evidence that MIF functions in a positive-feedback-loop with proinflammatory cytokines and could perpetuate the inflammatory process in Systemic Lupus Erythematosus (SLE).The aim of this study was to assess the effect of recombinant-human-MIF (rhMIF) on the expression of Th1, Th2 and Th17 cytokines in Peripheral Blood Mononuclear Cells (PBMC) from Healthy Subjects (HS) and SLE patients...
December 26, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/29395738/th17%C3%A2-cells-%C3%AE-%C3%AE-t-cells-and-their-interplay-in-eae-and-multiple-sclerosis
#7
REVIEW
Aoife M McGinley, Sarah C Edwards, Mathilde Raverdeau, Kingston H G Mills
Experimental autoimmune encephalomyelitis (EAE) is an animal model of multiple sclerosis (MS) that shares many features with the human disease. This review will focus on the role of IL-17-secreting CD4 and γδ T cells in EAE and MS, the plasticity of Th17 cells in vivo and the application of these findings to the understating of the pathogenesis and the development of new treatments for MS. There is convincing evidence that IL-17-secreting CD4 T cells (Th17 cells) and IL-17-secreting γδ T cells play a critical pathogenic role in central nervous system (CNS) inflammation in EAE and MS...
January 21, 2018: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29390153/il-21-regulates-nk-cell-responses-during-mycobacterium-tuberculosis-infection
#8
Padmaja Paidipally, Deepak Tripathi, Abhinav Van, Rajesh Kumar Radhakrishnan, Rohan Dhiman, Sambasivan Venkatasubramanian, Kamakshi P Devalraju, Amy R Tvinnereim, Vijaya Lakshmi Valluri, Ramakrishna Vankayalapati
In the current study, we determined the effects of interleukin (IL)-21 on human natural killer (NK) cells and monocyte responses during Mycobacterium tuberculosis (Mtb) infection. We found that Mtb stimulated CD4+ and NKT cells from healthy individuals with latent tuberculosis infection (LTBI+) are major sources of IL-21. CD4+ cells from tuberculosis patients secreted less IL-21 than did CD4+ cells from healthy LTBI+ individuals. IL-21 had no direct effect on Mtb stimulated monocytes. IL-21 activated NK cells produced IFN-γ, perforin, granzyme B and granulysin; lysed Mtb infected monocytes; and reduced Mtb growth...
January 30, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29385874/stage-classification-of-igg4-related-dacryoadenitis-and-sialadenitis-by-the-serum-cytokine-environment
#9
Motohisa Yamamoto, Kenichi Takano, Ryuta Kamekura, Chisako Suzuki, Shingo Ichimiya, Tetsuya Himi, Hiroshi Nakase, Hiroki Takahashi
OBJECTIVES: Patients with immunoglobulin-G4 related disease (IgG4-RD) diagnosed according to the comprehensive diagnostic criteria (CDC) show varied therapeutic responses and prognoses. We assumed that there are clinical stages in IgG4-RD and have verified it using serum cytokine levels in the groups classified by lesion distribution. METHODS: Definite IgG4-related dacryoadenitis and sialadenitis (IgG4-DS) cases were divided according to the CDC for IgG4-RD into 11 cases with focal type and 30 cases with systemic type...
February 1, 2018: Modern Rheumatology
https://www.readbyqxmd.com/read/29380244/immunological-impact-of-wharton-s-jelly-mesenchymal-stromal-cells-and-natural-killer-cell-co-culture
#10
Mehdi Najar, Mohammad Fayyad-Kazan, Nathalie Meuleman, Dominique Bron, Hussein Fayyad-Kazan, Laurence Lagneaux
Due to their easier isolation, multilineage potential, and immunomodulatory capacity, Wharton's Jelly-derived mesenchymal stromal cells (WJ-MSCs) exhibit promising efficacy in the field of regenerative medicine and immunotherapy. Characterization of WJ-MSCs-natural killer (NK) cells crosstalk is required for ameliorating the medicinal value of WJ-MSCs. Here, we revealed that the outcome of WJ-MSCs-NK cells crosstalk varied according to the type of cytokines (IL-2, IL-12, IL-15 and IL-21) utilized to activate NK cells...
January 30, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29377743/leptin-upregulates-peripheral-cd4-cxcr5-icos-t-cells-via-increased-il-6-in-rheumatoid-arthritis-patients
#11
Miaomiao Wang, Jing Wei, Han Li, Xunli Ouyang, Xiaotong Sun, Yawei Tang, Haifeng Chen, Bing Wang, Xia Li
CD4+CXCR5+ICOS+ T cells, known as Tfh (T Follicular helper) cells, are required for antibody production. Abnormal production and differentiation of Tfh cells are involved in many autoimmune diseases, including rheumatoid arthritis (RA). Leptin has the property of modulating immune system. Here, we explored the effect of leptin on CD4+CXCR5+ICOS+ T cells production in RA patients. Serum leptin levels were measured by enzyme-linked immunosorbent assay (ELISA). Peripheral blood mononuclear cells (PBMC) stimulated with CD3/CD28 were cultured in the presence and absence of leptin and with or without anti-IL-6 receptor (anti-IL-6R), anti-IL-21R, and anti-IL-12R antibody respectively...
January 29, 2018: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/29377068/dissection-of-a-circulating-cd3-cd20-t-cell-subpopulation-in-patients-with-psoriasis
#12
Jun Niu, Zhifang Zhai, Fei Hao, Yuancheng Zhang, Zhiqiang Song, Hua Zhong
CD3+ CD20+ T cells are a population of CD3+ T cells that express CD20 and identified in healthy donors and autoimmune diseases. However, the nature and role of these cells in patients with psoriasis remain unclear. Here, we aimed to investigate the level, phenotype, functional and clinical relevance of CD3+ CD20+ T cells in the peripheral blood of patients with psoriasis. We found that a small subset of CD3+ T cells expressed CD20 molecule in the peripheral blood of patients with psoriasis, and their levels were similar to those in healthy donors...
January 29, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29363179/hla-dr-nk-cells-are-mostly-characterized-by-less-mature-phenotype-and-high-functional-activity
#13
Sofya A Erokhina, Maria A Streltsova, Leonid M Kanevskiy, William G Telford, Alexander M Sapozhnikov, Elena I Kovalenko
NK cells change their phenotype and functional characteristics during activation. In this work, we searched for a relationship of HLA-DR expression with differentiation stages and functional activity of NK cells ex vivo and stimulated in vitro with IL-2 challenged with gene modified feeder K562 cells expressing membrane-bound IL-21 (K562-mbIL21). This stimulation technique has been described for NK cell expansion in clinical use. We have observed that HLA-DR expression in freshly isolated circulating NK cells was mostly associated with less differentiated CD56bright CD57- cells, although in some individuals it could also be found in terminally differentiated CD57+ cells...
November 22, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/29360498/a-pilot-study-on-the-characteristics-of-circulating-t-follicular-helper-cells-in-liver-transplant-recipients
#14
Ke Zhang, Yan-Ling Sun, Fan Yang, Yan-Chao Shi, Lei Jin, Zhen-Wen Liu, Fu-Sheng Wang, Ming Shi
Circulating CD4+CXCR5+ T follicular helper cells (cTfh) have been demonstrated to be involved in B cell-mediated systemic autoimmune diseases and alloreactive responses following kidney transplantation; however, whether cTfh cells are involved in alloreactive responses after liver transplantation (LT) remains unclear. Our present study aimed to investigate the characteristics of cTfh, as well as CXCR3+CCR6-Tfh1, CXCR3-CCR6-Tfh2, and CXCR3-CCR6+Tfh17 subsets in liver allograft recipients. A total of 30 liver transplant recipients were enrolled in this study...
January 19, 2018: Transplant Immunology
https://www.readbyqxmd.com/read/29350342/mesenchymal-stromal-cells-of-the-bone-marrow-and-natural-killer-cells-cell-interactions-and-cross-modulation
#15
Mehdi Najar, Mohammad Fayyad-Kazan, Nathalie Meuleman, Dominique Bron, Hussein Fayyad-Kazan, Laurence Lagneaux
Bone marrow-derived mesenchymal stromal cells (BM-MSCs) are multipotent progenitor cells that have shown promise for several different therapeutic applications. As they are able to modulate the function of several types of immune cells, BM-MSCs are highly important in the field of cell-based immunotherapy. Understanding BM-MSC-natural killer (NK) cell interactions is crucial for improving their therapeutic efficiency. Here, we observed that the type of NK cell-activating cytokine (e.g., IL-2, IL-12, IL-15 and IL-21) strongly influenced the outcomes of their interactions with BM-MSCs...
January 19, 2018: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29344110/anti-interleukin-and-interleukin-therapies-for-psoriasis-current-evidence-and-clinical-usefulness
#16
REVIEW
Ya-Chu Tsai, Tsen-Fang Tsai
Anti-interleukin (IL) therapies have emerged as a major treatment for patients with moderate-to-severe psoriasis. This article reviews the up-to-date results of pivotal clinical trials targeting the interleukins used for the treatment of psoriasis, including IL-1, IL-2, IL-6, IL-8, IL-10, IL-12, IL-17, IL-20, IL-22, IL-23, IL-36 and bispecific biologics IL-17A/tumor necrosis factor alpha (TNF-α). Cytokines involved in the circuits of psoriasis inflammation without ongoing clinical trials are also mentioned (IL-9, IL-13, IL-15, IL-16, IL-18, IL-19, IL-21, IL-24, IL-27, IL-33, IL-35, IL-37, and IL-38)...
November 2017: Therapeutic Advances in Musculoskeletal Disease
https://www.readbyqxmd.com/read/29331266/human-papilloma-virus-specific-t-cells-can-be-generated-from-na%C3%A3-ve-t-cells-for-use-as-an-immunotherapeutic-strategy-for-immunocompromised-patients
#17
Sarah E McCormack, Conrad Russell Y Cruz, Kaylor E Wright, Allison B Powell, Haili Lang, Cornelia Trimble, Michael D Keller, Ephraim Fuchs, Catherine M Bollard
Human papilloma virus (HPV) is a known cause of cervical cancer, squamous cell carcinoma and laryngeal cancer. Although treatments exist for HPV-associated malignancies, patients unresponsive to these therapies have a poor prognosis. Recent findings from vaccine studies suggest that T-cell immunity is essential for disease control. Because Epstein-Barr Virus (EBV)-specific T cells have been highly successful in treating or preventing EBV-associated tumors, we hypothesized that the development of a manufacturing platform for HPV-specific T cells from healthy donors could be used in a third-party setting to treat patients with high-risk/relapsed HPV-associated cancers...
January 10, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29319177/characterization-of-ectopic-lymphoid-structures-in-different-types-of-acute-renal-allograft-rejection
#18
Kitty de Leur, Marian C Clahsen-van Groningen, Thierry P P van den Bosch, Gretchen N de Graav, Dennis A Hesselink, Janneke N Samsom, Carla C Baan, Karin Boer
BACKGROUND: We hypothesize that T cells such as IL-21+BCL6+ T follicular helper cells can regulate B cell mediated immunity within the allograft during acute T-cell mediated rejection, this process may feed chronic allograft rejection on long term. To investigate this mechanism we determined the presence and activation status of organized T and B cells in so-called ectopic lymphoid structures (ELSs) in different types of acute renal allograft rejection. METHODS: Biopsies showing the following primary diagnosis were included: acute/active antibody-mediated rejection, C4d+ (a/aABMR), acute T cell-mediated rejection grade I (aTCMRI), and acute T cell-mediated rejection grade II (aTCMRII)...
January 10, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29317307/transgenic-expression-of-tilapia-piscidin-3-tp3-in-zebrafish-confers-resistance-to-streptococcus-agalactiae
#19
Bor-Chyuan Su, Yung-Wei Lai, Jyh-Yih Chen, Chieh-Yu Pan
To study the biological role of tilapia piscidin 3 (TP3) in Streptococcus agalactiae infection in vivo, TP3/DsRed overexpressing transgenic zebrafish were generated. Under normal growth conditions, TP3/DsRed transgenic zebrafish exhibited an orange-red body color, without any other obvious abnormalities. However, when compared to wild type fish, TP3/DsRed transgenic zebrafish were resistant to S. agalactiae infection. After infection, the TP3 overexpressing fish exhibited higher expression of Toll-like receptor 4a (TLR4a), interleukin (IL)-10, IL-22, and C3b...
January 6, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29305916/pkc-%C3%AE-%C3%AE-regulates-th17-differentiation-and-house-dust-mite-induced-allergic-airway-inflammation
#20
Yingying Yang, Panpan Dong, Jing Zhao, Wei Zhou, Yonghua Zhou, Yongliang Xu, Congjin Mei, Fukun Guo, Yi Zheng, Jun-Qi Yang
Asthma is a chronic airway inflammation in which Th2 and Th17 cells play critical roles in its pathogenesis. We have reported that atypical protein kinase (PKC) λ/ι is a new regulator for Th2 differentiation and function. However, the role of PKCλ/ι for Th17 cells remains elusive. In this study, we explored the effect of PKCλ/ι on Th17 cells in the context of ex vivo cell culture systems and an in vivo murine model of allergic airway inflammation with the use of activated T cell-specific conditional PKCλ/ι-deficient mice...
January 3, 2018: Biochimica et Biophysica Acta
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