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Gene expression in lymphocytes

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https://www.readbyqxmd.com/read/28652655/effect-of-cxcr3-ho-1-genes-modified-bone-marrow-mesenchymal-stem-cells-on-small-bowel-transplant-rejection
#1
Ming-Li Yin, Hong-Li Song, Yang Yang, Wei-Ping Zheng, Tao Liu, Zhong-Yang Shen
AIM: To investigate whether bone marrow mesenchymal stem cells (BMMSCs) modified with the HO-1 and CXCR3 genes can augment the inhibitory effect of BMMSCs on small bowel transplant rejection. METHODS: Lewis rat BMMSCs were cultured in vitro. Third-passage BMMSCs were transduced with the CXCR3/HO-1 genes or the HO-1 gene alone. The rats were divided into six groups and rats in the experimental group were pretreated with BMMSCs 7 d prior to small bowel transplant...
June 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28652615/gga-mir-219b-targeting-bcl11b-suppresses-proliferation-migration-and-invasion-of-marek-s-disease-tumor-cell-msb1
#2
Chunfang Zhao, Xin Li, Bo Han, Zhen You, Lujiang Qu, Changjun Liu, Jiuzhou Song, Ling Lian, Ning Yang
Marek's disease (MD), caused by Marek's disease virus (MDV), is a lymphotropic neoplastic disease. Previous miRNAome analysis showed gga-miR-219b was significantly downregulated in MDV-induced lymphoma, and one of its potential target genes, B-cell chronic lymphocytic /lymphoma 11B (BCL11B) was predicted. In this study, we further investigated the function of gga-miR-219b, and the gain/loss of function assay showed gga-miR-219b inhibited cell migration and reduced cell proliferation by promoting apoptosis not by cell cycle arrest...
June 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28652580/immunological-phenotype-of-the-murine-lrba-knockout
#3
Laura Gámez-Díaz, Julika Neumann, Fiona Jäger, Michele Proietti, Felicitas Felber, Pauline Soulas-Sprauel, Lisa Perruzza, Fabio Grassi, Tamara Kögl, Peter Aichele, Manfred Kilimann, Bodo Grimbacher, Sophie Jung
Biallelic mutations in the human Lipopolysaccharide Responsive Beige-like Anchor (LRBA) gene lead to a primary immunodeficiency known as LRBA deficiency, characterized by a broad range of clinical manifestations including autoimmunity, organomegaly, hypogammaglobulinemia and recurrent infections. Considering the phenotypic heterogeneity in patients and the severity of the disease, our aim was to assess the role of LRBA in immune cells and to understand the underlying pathomechanisms through the study of a Lrba knockout (Lrba(-/-)) mouse model...
June 27, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28649452/glucocorticoid-receptor-expression-on-circulating-leukocytes-differs-between-healthy-male-and-female-adults
#4
Kim D Lu, Shlomit Radom-Aizik, Fadia Haddad, Frank Zaldivar, Monica Kraft, Dan M Cooper
INTRODUCTION: The glucocorticoid receptor (GR) is a key receptor involved in inflammatory responses and is influenced by sex steroids. This study measured GR expression on circulating leukocyte subtypes in males and females. METHODS: A total of 23 healthy adults (12 female) participated in this study. GR expression was measured in leukocyte subtypes using flow cytometry. Peripheral blood mononuclear cell (PBMC) gene expression of GR (NR3C1), GR β, TGF-β1 and 2, and glucocorticoid-induced leucine zipper (GILZ) were determined by real-time polymerase chain reaction...
April 2017: Journal of clinical and translational science
https://www.readbyqxmd.com/read/28646630/characteristics-of-systemic-inflammation-in-hepatitis-b-precipitated-aclf-differentiate-it-from-no-aclf
#5
Wei Wu, Huadong Yan, Hong Zhao, Wenjie Sun, Qiao Yang, Jifang Sheng, Yu Shi
BACKGROUND AND AIMS: Patients with severe exacerbation of chronic hepatitis B (SE-CHB) are at risk of developing acute-on-chronic liver failure (ACLF). Systemic inflammation (SI) is a major driver of ACLF. The aim of this study was to identify characteristics of SI in hepatitis B-precipitated-ACLF (HB-ACLF), which may be distinct from No-ACLF patients with SE-CHB. METHODS: Two cohorts of patients with SE-CHB were enrolled in two tertiary hospitals. The associations between circulating leukocyte counts/subsets and ACLF progression and prognoses were analysed in Cohort A...
June 24, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28645309/herpes-simplex-virus-1-infects-the-olfactory-bulb-shortly-following-ocular-infection-and-exhibits-a-long-term-inflammatory-profile-in-the-form-of-effector-and-hsv-1-specific-t-cells
#6
Chandra M Menendez, Daniel J J Carr
BACKGROUND: Herpes simplex virus 1 (HSV-1) infection can result in a life-threatening condition known as herpes simplex encephalitis (HSE). Trafficking patterns by which the virus reaches the central nervous system (CNS) following ocular infection are unresolved. We evaluated early viral dissemination pathways following ocular infection that involve trafficking to the olfactory bulb (OB). Additionally, we have characterized the capacity of HSV-1 to establish latency within OB tissue and profiled the local T lymphocyte response over the course of the acute infection into latency...
June 23, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28645300/bacterial-ghosts-as-adjuvants-mechanisms-and-potential
#7
REVIEW
Irshad A Hajam, Pervaiz A Dar, Gayeon Won, John Hwa Lee
Bacterial ghosts (BG) are empty cell envelopes derived from Gram-negative bacteria. They contain many innate immunostimulatory agonists, and are potent activators of a broad range of cell types involved in innate and adaptive immunity. Several considerable studies have demonstrated the effectiveness of BG as adjuvants as well as their ability to induce proinflammatory cytokine production by a range of immune and non-immune cell types. These proinflammatory cytokines trigger a generalized recruitment of T and B lymphocytes to lymph nodes that maximize the chances of encounter with their cognate antigen, and subsequent elicitation of potent immune responses...
June 24, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28643325/surface-expression-of-anti-cd3scfv-stimulates-locoregional-immunotherapy-against-hepatocellular-carcinoma-depending-on-the-e1a-engineered-human-umbilical-cord-mesenchymal-stem-cells
#8
Qing Zhang, Xiang-Fei Yuan, Yang Lu, Zhen-Zhen Li, Shi-Qi Bao, Xiao-Long Zhang, Yuan-Yuan Yang, Dong-Mei Fan, Yi-Zhi Zhang, Chen-Xuan Wu, Hong-Xing Guo, Yan-Jun Zhang, Ye Zhou, Dong-Sheng Xiong
Tumor antigens is at the core of cancer immunotherapy, however, the ideal antigen selection is difficult especially in poorly immunogenic tumors. In this study, we designed a strategy to modify hepatocellular carcinoma (HCC) cells by surface expressing anti-CD3scfv within the tumor site strictly, which depended on the E1A-engineered human umbilical cord mesenchymal stem cells (HUMSC.E1A) delivery system. Subsequently, membrane-bound anti-CD3scfv actived the lymphocytes which lysed HCC cells bypassing the expression of antigens or MHC restriction...
June 23, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28640256/microrna-26a-cyclin-dependent-kinase-5-axis-controls-proliferation-apoptosis-and-in-vivo-tumor-growth-of-diffuse-large-b-cell-lymphoma-cell-lines
#9
Floriana Maria Farina, Alessandra Inguscio, Paolo Kunderfranco, Alice Cortesi, Leonardo Elia, Manuela Quintavalle
Diffuse large B-cell lymphoma (DLBCL) is the most frequent type of non-Hodgkin lymphoma. Despite a favorable therapeutic response to first-line chemo-immunotherapy, still 30-40% of patients is refractory, or relapse after this treatment. Thus, alternative strategies must be sought. Previous studies have indicated that cyclin-dependent kinase 5 (CDK5), a serine/threonine protein kinase, is involved in tumor development and progression, and it may represent a potential therapeutic target. However, its role in modulating DLBCL growth and progression remains largely unexplored...
June 22, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28639890/mir-557-works-as-a-tumor-suppressor-in-human-lung-cancers-by-negatively-regulating-lef1-expression
#10
Jiayong Qiu, Yingying Hao, Shenshen Huang, Yaqing Ma, Xiaofang Li, Danyang Li, Yimin Mao
MicroRNAs play an important role in regulating post-transcriptional gene expression in the progression of various human cancers. In this study, we investigated the role of microRNA-557 in human lung cancer cells. The molecular mechanism of microRNA-557 was also clarified in the proliferation and invasion of human lung cancer cells. Our results showed microRNA-557 levels were obviously decreased in clinical lung cancer specimens and lung cancer cell lines. Cell viability of A549 and NCI-H460 cells transfected with microRNA-557 mimics was significantly decreased than those transfected with negative control mimics...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28639485/increased-shisa3-expression-characterizes-chronic-lymphocytic-leukemia-patients-sensitive-to-lenalidomide
#11
Rossana Maffei, Stefania Fiorcari, Silvia Martinelli, Stefania Benatti, Jenny Bulgarelli, Lara Rizzotto, Giulia Debbia, Rita Santachiara, Gian Matteo Rigolin, Francesco Forconi, Davide Rossi, Luca Laurenti, Giuseppe A Palumbo, Daniele Vallisa, Antonio Cuneo, Gianluca Gaidano, Mario Luppi, Roberto Marasca
Lenalidomide is a therapeutically effective drug in chronic lymphocytic leukemia (CLL). Twenty-seven CLL patients were treated with lenalidomide in a phase II clinical trial. Ten patients were grouped as responders (R) and 6 as nonresponders (NR). We evaluated T lymphocytes, NK, monocytes and dendritic cells at baseline and after treatment. A gene expression analysis was performed on 16 CLL samples collected before treatment. The levels of immune cells or immune-related cytokines are not different between R and NR patients...
June 22, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28639194/rnaa-induced-by-tata-box-targeting-micrornas
#12
Yijun Zhang, Hui Zhang
Recent studies reveal that some nuclear microRNAs (miRNA) and synthesized siRNAs target gene promoters to activate gene transcription (RNAa). Interestingly, our group identified a novel HIV-1-encoded miRNA, miR-H3, which targets specifically the core promoter TATA box of HIV-1 and activates viral gene expression. Depletion of miR-H3 significantly impaired the replication of HIV-1. miR-H3 mimics could activate viruses from CD4(+) T cells isolated from patients receiving suppressive highly active antiretroviral therapy, which is very intriguing for reducing HIV-1 latent reservoir...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28638726/downregulation-of-antigen-presentation-associated-pathway-proteins-is-linked-to-poor-outcome-in-triple-negative-breast-cancer-patient-tumors
#13
Martin H Pedersen, Brian L Hood, Hans Christian Beck, Thomas P Conrads, Henrik J Ditzel, Rikke Leth-Larsen
Triple-negative breast cancer (TNBC) is a heterogeneous subtype with varying disease outcomes. Tumor-infiltrating lymphocytes (TILs) are frequent in TNBC and have been shown to correlate with outcome, suggesting an immunogenic component in this subtype. However, other factors intrinsic to the cancer cells may also influence outcome. To identify proteins and molecular pathways associated with recurrence in TNBC, 34 formalin-fixed paraffin-embedded (FFPE) primary TNBC tumors were investigated by global proteomic profiling using mass spectrometry...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28638418/the-expression-of-stat3-and-stat5a-genes-in-severe-refractory-asthma
#14
Kayvan Saeedfar, Mehrdad Behmanesh, Esmaeil Mortaz, Mohammad Reza Masjedi
BACKGROUND: Despite being a high burden disorder, the pathogenesis of severe refractory asthma (SRA) is poorly understood. There are some evidences for the involvement of members of the signal transducer and activator of transcription (STAT) family, including STAT3 and STAT5a. Our study aimed to evaluate the gene expression of STAT3 and STAT5a in asthma and SRA to establish if there is an association. MATERIALS AND METHODS: Using quantitative real-time polymerase chain reactions (qRT-PCR), the transcript levels of STAT3 and STAT5a were evaluated in peripheral blood mononuclear lymphocytes (PBML) isolated from 13 patients with SRA, 14 with mild asthma, and 30 healthy volunteers...
2017: Tanaffos
https://www.readbyqxmd.com/read/28637474/arsenic-trioxide-inhibits-ebv-reactivation-and-promotes-cell-death-in-ebv-positive-lymphoma-cells
#15
Qinyan Yin, Mark Sides, Christopher H Parsons, Erik K Flemington, Joseph A Lasky
BACKGROUND: Epstein-Barr Virus (EBV) is associated with hematopoietic malignancies, such as Burkitt's lymphoma, post-transplantation lymphoproliferative disorder, and diffuse large B-cell lymphoma. The current approach for EBV-associated lymphoma involves chemotherapy to eradicate cancer cells, however, normal cells may be injured and organ dysfunction may occur with currently employed regimens. This research is focused on employing arsenic trioxide (ATO) as EBV-specific cancer therapy takes advantage of the fact the EBV resides within the malignant cells...
June 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28636109/xq26-1-26-3-duplication-including-mospd1-and-gpc3-identified-in-boy-with-short-stature-and-double-outlet-right-ventricle
#16
Yukiko Hirota, Takaomi Minami, Tomoyuki Sato, Akiko Yokomizo, Auimi Matsumoto, Masahide Goto, Eriko Jinbo, Takanori Yamamgata
Xq25q26 duplication syndrome has been reported in individuals with clinical features such as short stature, intellectual disability, syndromic facial appearance, small hands and feet, and genital abnormalities. The symptoms are related to critical chromosome regions including Xq26.1-26.3. In this particular syndrome, no patient with congenital heart disease was previously reported. Here, we report a 6-year-old boy with typical symptoms of Xq25q26 duplication syndrome and double outlet right ventricle (DORV) with pulmonary atresia (PA)...
June 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28634284/co-administration-of-rankl-and-ctla4-antibodies-enhances-lymphocyte-mediated-anti-tumor-immunity-in-mice
#17
Elizabeth Ahern, Heidi Harjunpaa, Deborah Barkauskas, Stacey Allen, Kazuyoshi Takeda, Hideo Yagita, David Wyld, William C Dougall, Michele W L Teng, Mark J Smyth
Purpose: Novel partners for established immune checkpoint inhibitors in the treatment of cancer are needed to address the problems of primary and acquired resistance. The efficacy of combination RANKL and CTLA4 blockade in anti-tumor immunity has been suggested by recent case reports in melanoma. Here we provide a rationale for this combination in mouse models of cancer. <br />Experimental Design: The efficacy and mechanism of a combination of RANKL and CTLA4 blockade was examined by tumor infiltrating lymphocyte analysis, tumor growth and metastasis using a variety of neutralizing antibodies and gene-targeted mice...
June 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28633489/effects-of-early-pregnancy-on-uterine-lymphocytes-and-endometrial-expression-of-immune-regulatory-molecules-in-dairy-heifers1
#18
Sreelakshmi Vasudevan, Manasi M Kamat, Sadhat S Walusimbi, Joy L Pate, Troy L Ott
Natural killer (NK) cells are essential for establishment of human and rodent pregnancies. The function of these and other cytotoxic T cells (CTL) is controlled by stimulatory and inhibitory signaling. A role for cytotoxic cells during early pregnancy in cattle has not been described, but regulation of their function at the fetal-maternal interface is thought to be critical for conceptus survival. The hypothesis that the relative abundance of CTL and expression of inhibitory signaling molecules is increased by the conceptus during early pregnancy was tested...
June 19, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28632001/vasodilator-responsiveness-in-idiopathic-pulmonary-arterial-hypertension-identifying-a-distinct-phenotype-with-distinct-physiology-and-distinct-prognosis
#19
David Langleben, Stylianos Orfanos
Within the cohort of patients suffering from idiopathic pulmonary arterial hypertension (IPAH) is a group that responds dramatically (VR-PAH) to an acute vasodilator challenge and that has excellent long-term hemodynamic improvement and prognosis on high dose calcium channel blockers compared with vasodilator non-responders (VN-PAH). For the purposes of diagnosing VR-PAH, there is to date no test to replace the acute vasodilator challenge. However, recent studies have identified markers that may aid in the identification of VR-PAH, including peripheral blood lymphocyte RNA expression levels of desmogelin-2 and Ras homolog gene family member Q, and plasma levels of provirus integration site for Moloney murine leukemia virus...
June 20, 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28630052/infection-exposure-promotes-etv6-runx1-precursor-b-cell-leukemia-via-impaired-h3k4-demethylases
#20
Guillermo Rodríguez-Hernández, Julia Hauer, Alberto Martín-Lorenzo, Daniel Schäfer, Christoph Bartenhagen, Idoia García-Ramírez, Franziska Auer, Ines Gonzalez-Herrero, Lucia Ruiz-Roca, Michael Gombert, Vera Okpanyi, Ute Fischer, Cai Chen, Martin Dugas, Sanil Bhatia, René M Linka, Marta Garcia-Suquia, María V Rascón-Trincado, Angel Garcia-Sanchez, Oscar Blanco, Maria Begona Garcia-Cenador, Francisco Javier Garcia-Criado, César Cobaleda, Diego Alonso-López, Javier De Las Rivas, Markus Müschen, Carolina Vicente-Dueñas, Isidro Sánchez-García, Arndt Borkhardt
<p>ETV6-RUNX1 is associated with the most common subtype of childhood leukemia. As few ETV6-RUNX1 carriers develop precursor B cell acute lymphocytic leukemia (pB-ALL), the underlying genetic basis for development of full-blown leukemia remains to be identified, but the appearance of leukemia cases in time-space clusters keeps infection as a potential causal factor. Here we present in vivo genetic evidence mechanistically connecting preleukemic ETV6-RUNX1 expression in hematopoetic stem cells/peripheral cells (HSC/PC) and postnatal infections for human-like pB-ALL...
June 19, 2017: Cancer Research
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