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Immunological Investigations

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https://www.readbyqxmd.com/read/29671652/effects-of-educated-monocytes-with-xenogeneic-mesenchymal-stem-cell-derived-conditioned-medium-in-a-mouse-model-of-chronic-asthma
#1
Hadi Esmaili Gourvarchin Galeh, Seyyed Meysam Abtahi Froushani, Nahideh Afzale Ahangaran, Siamak Naji Hadai
BACKGROUND: This study was conducted to determine the potential of the monocytes educated with rat bone marrow mesenchymal stem cell-derived conditioned medium (MCM) in ameliorating animal model of asthma. METHODS: Chronic asthma was induced in the BALB/c mice using ovalbumin (OVA) sensitization. The monocytes were isolated from blood of mice and supplemented with 50% MCM or negative control media. After 24 h, the cells were designated as "non-educated or educated"...
April 19, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29671649/lag-3-represents-a-marker-of-cd4-t-cells-with-regulatory-activity-in-patients-with-bone-fracture
#2
Jun Wang, Yunfan Ti, Yicun Wang, Guodong Guo, Hui Jiang, Menghan Chang, Hongbo Qian, Jianning Zhao, Guojing Sun
The lymphocyte activation gene 3 (LAG-3) is a CD4 homolog with binding affinity to MHC class II molecules. It is thought that LAG-3 exerts a bimodal function, such that co-ligation of LAG-3 and CD3 could deliver an inhibitory signal in conventional T cells, whereas, on regulatory T cells, LAG-3 expression could promote their inhibitory function. In this study, we investigated the role of LAG-3 expression on CD4+ T cells in patients with long bone fracture. We found that LAG-3+ cells represented approximately 13% of peripheral blood CD4+ T cells on average...
April 19, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29648897/meta-analysis-of-the-association-of-il2ra-polymorphisms-rs2104286-and-rs12722489-with-multiple-sclerosis-risk
#3
Xiao-Xiong Wang, Tong Chen
BACKGROUND: The interleukin-2 receptor alpha (IL2RA) gene polymorphisms may be implicated in the genetic susceptibility to multiple sclerosis (MS). This meta-analysis aims to evaluate the relationship of the IL2RA polymorphisms rs2104286 and rs12722489 with MS risk in different populations. METHODS: Eligible association studies were identified through search in Pubmed, Medline, Web of Science, and Scopus (end of search: August 2017). Summary odds ratios (ORs) with 95% confidence intervals (CIs) were calculated using random-effects or fixed-effects models...
April 12, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29648895/functional-polymorphisms-of-the-type-1-and-type-2-iodothyronine-deiodinase-genes-in-autoimmune-thyroid-diseases
#4
Naoya Inoue, Mikio Watanabe, Yuka Katsumata, Naoko Ishido, Yoh Hidaka, Yoshinori Iwatani
Graves' disease (GD) and Hashimoto's disease (HD) are major autoimmune thyroid diseases (AITDs), and their pathological conditions vary among patients. Type 1 iodothyronine deiodinase (D1) and type 2 iodothyronine deiodinase (D2) convert from thyroxine (T4) to triiodothyronine (T3). However, few findings have been described concerning the association between polymorphisms in D1 and D2 genes and AITD. Therefore, we genotyped D1 rs11206244, D2 rs225014, and rs12885300 polymorphisms in 134 GD patients, including 54 patients with intractable GD and 44 patients with GD in remission and 132 HD patients, including 57 patients with severe HD, 45 patients with mild HD, and 84 healthy controls using PCR-RFLP...
April 12, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29611775/upregulated-il-1-receptor-associated-kinase-1-irak1-in-systemic-lupus-erythematosus-irak1-inhibition-represses-th17-differentiation-with-therapeutic-potential
#5
Zhou Zhou, Zhiqiang Tian, Mengjie Zhang, Yuxun Zhang, Bing Ni, Fei Hao
Systemic lupus erythematosus (SLE) is a typical autoimmune disease. Genome-wide analyses have revealed that interleukin-1 receptor-associated kinase 1 (IRAK1) is associated with susceptibility to SLE. Our previous study investigated the role of IRAK1 in nuclear factor-κB (NF-κB)-related pathways in a mouse model of lupus. In this study, we aimed to further explore the etiological role of IRAK1. The gene expression and phosphorylation of IRAK1 in CD4+ T cells from lupus patients and healthy controls were examined by quantitative reverse transcription-polymerase chain reaction and western blotting, respectively...
April 3, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29611765/the-potential-role-of-ptpn-22-c1858t-gene-polymorphism-in-the-pathogenesis-of-type-1-diabetes-in-saudi-population
#6
Khaled A Alswat, Amre Nasr, Mohammed S Al Dubayee, Iman M Talaat, Adnan A Alsulaimani, Imad A A Mohamed, Gamal Allam
BACKGROUND: Recent investigations have reported an association between protein tyrosine phosphatase non-receptor type-22 (PTPN-22) gene polymorphism and susceptibility to the development of type 1 diabetes (T1D) in some populations and not in others. In this study, we aimed to investigate the association of PTPN-22 C1858T polymorphism with T1D in Saudi children. METHODS: A cohort of 372 type 1 diabetic children and 372 diabetes-free subjects was enrolled in the current investigation...
April 3, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29611722/single-nucleotide-polymorphisms-of-fas-and-fasl-genes-and-risk-of-idiopathic-aplastic-anemia
#7
Sadia Rehman, Nusrat Saba, Madiha Naz, Parvez Ahmed, Saeeda Munir, Sumaira Sajjad, Sobia Tabassum, Lubna Naseem
FAS/FASL signaling system plays a vital role in the regulation of apoptosis, envisaged as a death process required for immune surveillance to prevent autoimmunity and tumorigenesis along with several other biological activities. Several single-nucleotide polymorphisms (SNPs) of FAS/FASL system can result in aberrant apoptosis, which can cause different cancers and autoimmune diseases. Aplastic anemia (AA) is an autoimmune dysfunction characterized by peripheral blood pancytopenia associated with hypoplasia of bone marrow...
April 3, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29578823/possible-allergenic-role-of-tropomyosin-in-patients-with-adverse-reactions-after-fish-intake
#8
Juan González-Fernández, Marina Alguacil-Guillén, Carmen Cuéllar, Alvaro Daschner
In a recent case report, patient's anti-fish tropomyosin IgE was associated with gastrointestinal symptoms. We aimed to demonstrate on a wider scale that the panallergen tropomyosin should not be limited to invertebrate species and that clinically relevant reactions could be elicited by vertebrate tropomyosin. On the whole, 19 patients with adverse reactions after fish intake and showing negative skin tests with commercial fish extracts were included. Fish tropomyosin was recognized by 10/19 patients' IgE by immunoblotting...
March 26, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29528757/polyautoimmunity-in-patients-with-lps-responsive-beige-like-anchor-lrba-deficiency
#9
Gholamreza Azizi, Hassan Abolhassani, Majid Zaki-Dizaji, Sima Habibi, Hamed Mohammadi, Mohammadreza Shaghaghi, Reza Yazdani, Juan-Manuel Anaya, Nima Rezaei, Lennart Hammarström, Asghar Aghamohammadi
BACKGROUND: Polyautoimmunity is defined as the presence of more than one autoimmune disorder in a single patient. Lipopolysaccharide (LPS)-responsive beige-like anchor (LRBA) deficiency is one of the monogenic causes of polyautoimmunity. The aim of this study was to report the characteristics of polyautoimmunity in patients with LRBA deficiency. METHODS: A total of 14 LRBA deficiency patients with confirmed autoimmunity were enrolled in this study. For those patients with polyautoimmunity, demographic information, clinical records, laboratory, and molecular data were collected...
March 12, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29498560/a-novel-pspa-protein-vaccine-intranasal-delivered-by-bacterium-like-particles-provides-broad-protection-against-pneumococcal-pneumonia-in-mice
#10
Dandan Wang, Jingcai Lu, Jinfei Yu, Hongjia Hou, Kees Leenhouts, Maarten L Van Roosmalen, Tiejun Gu, Chunlai Jiang, Wei Kong, Yongge Wu
BACKGROUND: Streptococcus pneumoniae is a major pathogen accounting for a large number of pneumococcal disease in worldwide. Due to the mucosal immune pathway induces both systemic and mucosal immune responses, the potential strategy to prevent pneumococcal disease may be to develop a mucosal vaccine. METHOD: In this study, we developed an intranasal pneumococcal protein vaccine based on a bacterium-like particle (BLP) delivery system. PspA is expressed and exposed on the surface of all pneumococcal strains, which confers the potential to induce immune responses to protect against pneumococcal infection...
March 2, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29498551/enhancing-the-apoptotic-effect-of-il-24-mda-7-on-the-human-hepatic-stellate-cell-through-rgd-peptide-modification
#11
Iman Jamhiri, Saber Zahri, Davood Mehrabani, Zahra Khodabandeh, Mehdi Dianatpour, Ramin Yaghobi, Seyed Younes Hosseini
Induction of apoptosis or quiescent hepatic stellate cells (HSCs) can be an attractive molecular strategy due to the importance of activation of HSCs during hepatic fibrogenesis. Interleukin-24/melanoma differentiation-associated gene-7 (IL-24/mda-7) is a cytokine that has attracted a great deal of attention in the tumor killing as well as pathophysiology of the diseases. In this study, the Pro-apoptotic and senescence inductive properties of IL-24/mda-7 were assessed in human-derived HSCs. Three plasmids expressing natural mda-7, peptide modified version, mda-7-RGD genes beside a recombinant IL-24 protein, were added or transfected into activated LX-2 cells...
March 2, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29488813/investigation-of-erg-gene-expression-in-iranian-patients-with-multiple-sclerosis
#12
Nasrin Yazdanpanahi, Masoud Etemadifar, Mohammad-Taghi Kardi, Elahe Shams, Shirin Shahbazi
INTRODUCTION: Multiple sclerosis (MS) is a common neuro-inflammatory disease arising from interplay of multiple genetic and nongenetic factors. The complex etiology of MS highlights the importance of investigation in various populations exposed to different genetic and environmental risk factors and combination of the results of these studies for elucidation of the MS underlying mechanisms and management of this disease. The role of ETS-related gene (ERG) in inflammation and immune response has been suggested by different investigations...
February 28, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29412077/transient-effects-of-anesthesia-on-leukocyte-apoptosis-and-monocyte-cytokine-stimulation-a-clinical-study
#13
Paraskevi Matsota, Georgia Kostopanagiotou, Konstantinos Kalimeris, Ageliki Pandazi, Antigone Kotsaki, Styliani Kontogiannopoulou, Evangelos J Giamarellos-Bourboulis
The effects of anesthetics on immune cell apoptosis and cytokine stimulation were studied in a prospective study. American Society of Anesthesiologists I/II patients underwent elective inguinal hernia repair or varicose veins stripping surgery and were randomized to either epidural anesthesia (n = 14) or general anesthesia with sevoflurane (n = 19) or propofol (n = 15). Blood was sampled before anesthesia induction (T0), at the end of surgery (T1), and 6 h later (T2). Apoptosis was determined by ANNEXIN-V staining of white blood cells; monocytes were isolated and stimulated for cytokine production...
February 7, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29405788/upregulation-of-cd4-t-lymphocytes-by-isomeric-mixture-of-quercetin-3-o-rutinoside-and-quercetin-3-o-robinobioside-isolated-from-millettia-aboensis
#14
Daniel Lotanna Ajaghaku, Peter Achunike Akah, Emmanuel Emeka Ilodigwe, Sunday Odunke Nduka, Uduma Eke Osonwa, Festus Basden Chinedu Okoye
BACKGROUND: Millettia aboensis (Hook. F.) Baker (Fabaceae) is popular in ethnomedicine for its acclaimed efficacy in a number of disease conditions. This study evaluated the immunomodulatory effect of the leaf extract as a possible mechanism of its ethnomedicinal uses. METHODS: Humoral and cellular immune responses of Balb/c mice to tetanus toxoid and cyclophosphamide, respectively, were used to monitor immunomodulatory activities of the ethanol leaf extract and fractions of M...
February 6, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29388862/hla-g-gene-polymorphism-in-egyptian-patients-with-non-hodgkin-lymphoma-and-its-clinical-outcome
#15
Gehan Abd-Elfatah Tawfeek, Suzan Alhassanin
BACKGROUND: Non-Hodgkin lymphoma (NHL) is a major cancer in Egypt and worldwide and has many risk factors including genes involved in the immune response. AIM: we investigated the HLA-G 14bp gene polymorphism as a risk factor for NHL and its clinic pathologic features. The study involved 150 patients with NHL and 100 healthy control. Full histories, clinical examination, C.T scan and laboratory investigations such as CBC, LDH, ?2microglobulin and HCV RNA by qualitative real time PCR were performed for all subjects...
February 1, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29388853/identification-of-il2rg-and-cybb-mutations-in-two-chinese-primary-immunodeficiency-patients-by-whole-exome-sequencing
#16
Shanshan Xu, Qiyuan Li, Jinzhun Wu, Guobing Chen, Bizhen Zhu, Weiyue Gu
BACKGROUND: Primary immunodeficiency diseases are a group of genetic disorders that lead to increased propensity to a variety of infections, sometimes with fatal outcomes. METHOD: In this study, whole-exome sequencing (WES) was used to identify mutations in two patients suspected of having primary immunodeficiency. Sanger sequencing was used to confirm the results in the patients and their family. RESULT: One patient was diagnosed as X-linked severe combined immunodeficiency (X-SCID) and another patient as X-linked chronic granulomatous disease (X-CGD) by WES...
February 1, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29388852/associations-between-vitamin-d-receptor-polymorphisms-and-susceptibility-to-behcet-s-disease-a-meta-analysis
#17
Zahra Mirfeizi, Samira Tabaei, Yalda Ravanshad, Kamila Hashemzadeh, Elahe Kharazmi, Hassan Mehrad-Majd
BACKGROUND: The vitamin D receptor (VDR) gene polymorphisms have been reported to be related to the development of Behcet's disease (BD). However, the results have been inconsistent among diverse populations. Therefore, this comprehensive meta-analysis has been designed to assess a more accurate association between VDR polymorphisms and BD susceptibility. METHODS: An electronic literature search was conducted to identify eligible studies. Pooled odds ratios (OR) with corresponding 95% confidence interval (CI) were calculated in different genetic models to assess this association...
February 1, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29388847/the-role-of-tnf-alpha-polymorphism-and-expression-in-susceptibility-to-nasal-polyposis
#18
Guimin Zhang, Jinmei Zhang, Manbao Kuang, Peng Lin
OBJECTIVE: In this study, we first performed a meta-analysis to assess the role of single-nucleotide polymorphism (SNP) within tumor necrosis factor alpha (TNF alpha) gene and TNF alpha expression in the risk of nasal polyposis. METHODS: STATA 12.0 software was utilized to conduct the Mantel-Haenszel statistics, Cohen statistics, Begg's test, Egger's tests and sensitivity analysis. RESULTS: We systemically carried out the database retrieval and initially identified 486 articles...
February 1, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29373048/role-of-tgf-%C3%AE-activated-kinase-1-inhibitor-on-the-interaction-between-macrophages-and-mesangial-cells-on-the-condition-of-high-glucose
#19
Zhe Fan, Xingxin Xu, Xiangming Qi, Yonggui Wu
OBJECTIVE: To investigate the effect of TGF-β activated kinase-1(TAK1) inhibitor 5Z-7-oxozeaenol on the interaction between macrophages and mesangial cells exposed to high glucose. METHODS: The macrophages and mesangial cells were cultured separately or co-cultured and divided into seven groups: inhibitor control group, mannitol control group, normal control group, high glucose group and inhibitor groups. The expression of p-TAK1, TAK1 binding protein (TAB1), transcription factor NF - κ B (NF-κB p65) of macrophages were analyzed by Western blotting...
January 26, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29336620/the-role-of-the-pi3k-mtor-signaling-pathway-in-staphylococcus-epidermidis-small-colony-variants-intracellular-survival
#20
Agnieszka Magryś, Agnieszka Bogut, Michał Kiełbus, Alina Olender
The objective of this study was to analyze how Staphylococcus epidermidis SCV and WT strains manipulate the PI3K/Akt/mTOR signaling pathway. Six S. epidermidis strains with normal phenotype (WT) and six S. epidermidis strains with SCV phenotype were isolated in parallel from six patients with the prosthetic hip joint infections. THP-1 activated cells were incubated with or without PI3K inhibitor-wortmannin or with mTOR inhibitor-rapamycin. Next, macrophages were exposed to S. epidermidis WT and SCV strains...
April 2018: Immunological Investigations
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