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https://www.readbyqxmd.com/read/28433861/c-reactive-protein-and-enzymatically-modified-ldl-cooperatively-promote-dendritic-cell-mediated-t-cell-activation
#1
Wei He, Yong Ren, Xiao Wang, Qiao Chen, Shifang Ding
BACKGROUND: Enzymatically modified low density lipoprotein (eLDL), C reactive protein (CRP), dendritic cells (DCs), and T cells were shown to be involved in the pathogenesis of atherosclerosis. This study aimed to investigate whether eLDL and CRP could cooperatively promote DC-mediated T cell activation and proliferation. METHOD: Low density lipoprotein was isolated from healthy human plasma and treated with proteases and cholesterol esterase. CD14(+) monocytes were isolated from human peripheral blood by gradient centrifugation and enriched with CD14 Microbeads, which were then induced with recombinant human IL-4 and granulocyte-macrophage colony-stimulating factor before treated with eLDL and/or CRP...
April 7, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28433716/development-of-a-monoclonal-antibody-against-the-cd3%C3%AE%C2%B5-of-olive-flounder-paralichthys-olivaceus-and-its-application-in-evaluating-immune-response-related-to-cd3%C3%AE%C2%B5
#2
Jae Wook Jung, Jung Seok Lee, Young Rim Kim, Se Pyeong Im, Si Won Kim, Jassy Mary S Lazarte, Jaesung Kim, Kim D Thompson, Jong Pyo Suh, Tae Sung Jung
The T cell receptor (TCR) is the binding site of antigen and is responsible for specifically activating the adaptive immune response. CD3, an essential component of the CD3-TCR complex, is known to be composed of γδ and ε chains in teleost. However, there are few monoclonal antibodies (mAb) available to identify these molecules on T cells, so we aimed to produce a mAb against CD3ε to improve our understanding of T cell immune response in olive flounder (Paralichthys olivaceus). CD3ε recombinant protein was expressed in yeast, the expression of which was confirmed by SDS-PAGE, MALDI-TOF/TOF MS and Western blot analysis...
April 19, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28433528/evolutionary-history-of-the-t-cell-receptor-complex-as-revealed-by-small-spotted-catshark-scyliorhinus-canicula
#3
Rita Pettinello, Anthony K Redmond, Christopher J Secombes, Daniel J Macqueen, Helen Dooley
In every jawed vertebrate species studied so far, the T cell receptor (TCR) complex is composed of two different TCR chains (α/β or γ/δ) and a number of CD3 subunits responsible for transmitting signals into the T cell. In this study, we characterised all of the TCR and CD3 genes of small-spotted catshark (Scyliorhinus canicula) and analysed their expression in a broad range of tissues. While the TCR complex is highly conserved across jawed vertebrates, we identified a number of differences in catshark, most notably the presence of two copies of both TCRβ and CD3γδ, and the absence of a functionally-important proline rich region from CD3ε...
April 19, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28429508/immunophenotyping-and-activation-status-of-maternal-peripheral-blood-leukocytes-during-pregnancy-and-labour-both-term-and-preterm
#4
Jianhong Zhang, Oksana Shynlova, Sally Sabra, Annie Bang, Laurent Briollais, Stephen J Lye
The onset of labour in rodents and in humans is associated with physiological inflammation which is manifested by infiltration of activated maternal peripheral leukocytes (mPLs) into uterine tissues. Here, we used flow cytometry to immunophenotype mPLs throughout gestation and labour, both term and preterm. Peripheral blood was collected from non-pregnant women and pregnant women in the 1st, 2nd and 3rd trimesters. Samples were also collected from women in active labour at term (TL) or preterm (PTL) and compared with women term not-in-labour (TNIL) and preterm not-in-labour (PTNIL)...
April 21, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28429464/inflammatory-features-of-frontal-fibrosing-alopecia
#5
Sophia A Ma, Sotonye Imadojemu, Kenneth Beer, John T Seykora
INTRODUCTION: Frontal fibrosing alopecia (FFA) is a cicatricial alopecia typically occurring in post-menopausal women. The etiology and pathophysiology of FFA is poorly understood but thought to be immune mediated. This study aims to further explore the extent of fibrosis and the inflammatory microenvironment by characterizing Langerhans cells (LCs), helper T cells, cytotoxic T cells, and B cells near hair follicles in FFA. METHODS: 11 paraffin-embedded tissues from patients with a clinical and histopathologic diagnosis of FFA were selected for immunohistochemical studies using CD3, CD4, CD8, CD1a, and CD20...
April 21, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28429361/pathologic-character-and-diagnosis-of-female-primary-genital-system-diffuse-large-b-cell-lymphoma
#6
H Cheng, X Tang, J Cheng, B Zhang, Y-L Zhang, W-Q Wang, P Teng
OBJECTIVE: We investigated the clinicopathological characteristics and immunophenotype of female genital system diffuse large B-cell lymphoma (DLBCL) in order to improve diagnosis and therapy efficacy. PATIENTS AND METHODS: The clinicopathologic features of 13 cases with primary DLBCL of the female genital system were studied retrospectively. According to the immunophenotypes, 10 cases were classified as germinal center B-cell-like DLBCL and the other 3 as non-center B-cell-like DLBCL...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28428880/long-term-complete-remission-with-ipilimumab-in-metastatic-castrate-resistant-prostate-cancer-case-report-of-two-patients
#7
Luc Cabel, Elika Loir, Gwenaelle Gravis, Pernelle Lavaud, Christophe Massard, Laurence Albiges, Giulia Baciarello, Yohann Loriot, Karim Fizazi
BACKGROUND: Prostate cancer is one of the most common cancers in men and the fourth leading cause of cancer mortality worldwide. Although major progress has been achieved in the last years for patients with metastatic castrate-resistant prostate cancer (mCRPC), thanks to next-generation androgen receptor axis targeted drugs, taxanes, and bone-targeted agents, immunotherapy has not been widely approved and used for the treatment of prostate cancer. Two large studies with ipilimumab, an anti-CTLA-4 (cytotoxic T-lymphocyte antigen 4) antibody reported improved progression-free survival, but not statistically improved overall survival at the primary analysis (CA184 043 and CA184 095)...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28428135/the-immunotoxicological-pattern-of-subchronic-and-chronic-benzene-exposure-in-rats
#8
Alexander V Karaulov, Irina V Mikhaylova, Alexander I Smolyagin, Viktor M Boev, Alexandra Kalogeraki, Aristides M Tsatsakis, Ayse Basak Engin
Exposure to benzene and its inevitable metabolites can result in deleterious effects on human health, including lymphocytopenia, hematotoxicity and cancer. However, the duration of exposure might alter the effects including immune consequences. The aim of this study was to determine whether benzene could modulate lymphocyte proliferation induced by the T cell mitogen concanavalin A, in rats, at different exposure durations. 386 Wistar rats were assigned into control and treatment groups which was subdivided into groups for 45, 90 and 135days for 0,6mL/kg of drinking water mixed benzene treatment...
April 17, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28428103/characteristics-and-clinical-implications-of-reactive-germinal-centers-in-the-bone-marrow
#9
Rose Lou Marie C Agbay, L Jeffrey Medeiros, Joseph D Khoury, Alireza Salem, Carlos E Bueso-Ramos, Sanam Loghavi
Reactive germinal centers (GCs) in the bone marrow (BM) have been described in patients with autoimmune disorders, infections, malignancies and following certain drug therapies, or as an isolated finding without obvious underlying disease. In this study, we describe the clinical conditions in which reactive GCs occur in BM samples, and their topography and accompanying laboratory and ancillary findings in the setting of a cancer center. We identified 32 BM specimens with reactive GCs with an estimated frequency of <0...
April 17, 2017: Human Pathology
https://www.readbyqxmd.com/read/28427753/prognostic-markers-in-oropharyngeal-squamous-cell-carcinoma-focus-on-cd70-and-tumour-infiltrating-lymphocytes
#10
Astrid De Meulenaere, Tijl Vermassen, Sandrine Aspeslagh, Karen Zwaenepoel, Philippe Deron, Fréderic Duprez, Sylvie Rottey, Liesbeth Ferdinande
We evaluated the expression of CD70 as biomarker for prognosis in patients with oropharyngeal squamous cell carcinoma (OSCC). We also examined the prognostic value of tumour infiltrating lymphocytes (TILs) in our study cohort. Formalin fixed, paraffin embedded tissue originating from the oropharynx of 78 patients was immunohistochemically stained for CD70, CD3, CD8 and FoxP3. Expression of CD70, CD3, CD8, FoxP3 and HPV status was correlated with clinicopathological characteristics. Overall survival (OS) was determined by a log-rank (Mantel-Cox) test whereas the Cox proportional hazard model was used for multivariate analysis...
April 17, 2017: Pathology
https://www.readbyqxmd.com/read/28427176/metronomic-regimen-as-an-effective-treatment-for-aggressive-t-lgl-leukemia-with-central-nervous-system-infiltration-clinical-experience-and-review-of-literature
#11
REVIEW
Yun Liu, Lei Fan, Huihui Zhao, Wei Xu, Jianyong Li
A 71-year-old man was diagnosed with T-Large granular lymphocytic (LGL) leukemia, which usually represents a relatively indolent clinical course. While the clinical manifestation of this patient we report herein was aggressive with lasting fever, splenomegaly and hemophagocytic lymphohistiocytosis (HLH). T-cell immunophenotype was CD3+CD4-CD8-CD5-CD7-TCRαβ+. After comprehensive evaluation, an adjusted chemotherapy regimen CEOP (cyclophosphamide, vincristine, etoposide, prednisone) with etoposide, a potential effective regimen for HLH was administrated to the patient...
February 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28426690/phenotypic-characterization-and-anticancer-capacity-of-cd8-cytokine-induced-killer-cells-after-antigen-induced-expansion
#12
Jianhua Liu, Lu Wang, Yaoling Wang, Wenjie Zhang, Yilin Cao
Cytokine-induced killer cells (CIK) have been used in clinic for adoptive immunotherapy in a variety of malignant tumors and have improved the prognosis of cancer patients. However, there are individual differences in the CIK cell preparations including the obvious differences in the ratio of effector CIK cells among different cancer patients. Infusion of such heterogeneous immune cell preparation is an important factor that would affect the therapeutic efficacy. We report here the enrichment and expansion of CD8+ cells from CIK cells cultured for one week using magnetic activated cell sorting (MACS)...
2017: PloS One
https://www.readbyqxmd.com/read/28426456/expression-and-localization-of-mir-21-and-mir-126-in-mucosal-tissue-from-patients-with-inflammatory-bowel-disease
#13
Gorm Thorlacius-Ussing, Boye Schnack Nielsen, Vibeke Andersen, Kim Holmstrøm, Anders E Pedersen
BACKGROUND: microRNAs (miRNAs) are small noncoding RNAs that guide degradation of mRNA and regulate protein expression. miRNA based diagnostic biomarkers for ulcerative colitis (UC) and Crohn's disease (CD) are emerging but information about the cellular localization of many miRNAs is limited and more detailed histologic evaluation of miRNA expression patterns is needed to understand their immunobiological function. METHODS: Formalin-fixed paraffin-embedded colon biopsies from 10 patients with UC and 8 patients with CD together with 9 controls were examined by RT-qPCR and quantitative in situ hybridization (ISH)...
May 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28425129/role-of-sialyl-6-sulfo-lewis-x-in-anti-tumor-immunity-against-oral-squamous-cell-carcinoma
#14
Hisato Yoshida, Hitomi Hoshino, Yoshiaki Imamura, Hitoshi Yoshimura, Kazuo Sano, Motohiro Kobayashi
BACKGROUND: Tumor-infiltrating lymphocytes (TILs) reportedly play a pivotal role in anti-tumor immunity against oral squamous cell carcinoma (OSCC); however, mechanisms governing TIL recruitment to OSCC tissues remain to be clarified. The present study was undertaken to assess a potential association between TILs and high endothelial venule (HEV)-like vessels that express sialyl 6-sulfo Lewis X (LeX). METHODS: OSCC tissue sections (n = 41) were subjected to immunohistochemistry for sialyl 6-sulfo LeX and CD34 to allow quantitation of HEV-like vessels...
April 20, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28425125/n-methyl-4-pyridinium-tetrazolate-zwitterion-based-photochromic-materials
#15
Xiang-Yi Chen, Ning-Ning Zhang, Li-Zhen Cai, Pei-Xin Li, Ming-Sheng Wang, Guo-Cong Guo
N,N'-disubstituted bipyridinium (viologen) and N-monosubstituted bipyridinium compounds are well known for their electron-transfer (ET) photochromic behavior. The modification of them was exclusively focused on the N-substituents. For the first time, we studied the photochromic behavior when one pyridyl ring of the bipyridinium was substituted with a multi-functional azole group, and revealed that two new coordination compounds based on N-methyl-4-pyridinium tetrazolate (mptz) zwitterion, [Zn(mptz)2Br2] (1) and [Cd3(mptz)2Cl6]n∙4nH2O (2), exhibit typical ET photochromic behavior owing to photoinduced ET from halogen anion to the mptz ligand...
April 20, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28424683/novel-strategy-to-expand-super-charged-nk-cells-with-significant-potential-to-lyse-and-differentiate-cancer-stem-cells-differences-in-nk-expansion-and-function-between-healthy-and-cancer-patients
#16
Kawaljit Kaur, Jessica Cook, So-Hyun Park, Paytsar Topchyan, Anna Kozlowska, Nick Ohanian, Changge Fang, Ichiro Nishimura, Anahid Jewett
Natural killer (NK) cells are known to target cancer stem cells and undifferentiated tumors. In this paper, we provide a novel strategy for expanding large numbers of super-charged NK cells with significant potential to lyse and differentiate cancer stem cells and demonstrate the differences in the dynamics of NK cell expansion between healthy donors and cancer patients. Decline in cytotoxicity and lower interferon (IFN)-γ secretion by osteoclast (OC)-expanded NK cells from cancer patients correlates with faster expansion of residual contaminating T cells within purified NK cells, whereas healthy donors' OCs continue expanding super-charged NK cells while limiting T cell expansion for up to 60 days...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28424285/equine-arteritis-virus-has-specific-tropism-for-stromal-cells-and-cd8-t-and-cd21-b-lymphocytes-but-not-glandular-epithelium-at-the-primary-site-of-persistent-infection-in-the-stallion-reproductive-tract
#17
Mariano Carossino, Alan T Loynachan, Igor F Canisso, R Frank Cook, Juliana R Campos, Bora Nam, Yun Young Go, Edward L Squires, Mats H T Troedsson, Thomas Swerczek, Fabio Del Piero, Ernest Bailey, Peter J Timoney, Udeni B R Balasuriya
Equine arteritis virus (EAV) has a global impact on the equine industry being the causative agent of equine viral arteritis (EVA), a respiratory, systemic, and reproductive disease of equids. A distinctive feature of EAV infection is that it establishes long-term persistent infection in 10 to 70% of infected stallions (carriers). In these stallions, EAV is only detectable in the reproductive tract and viral persistence occurs despite the presence of high serum neutralizing antibodies. Carrier stallions constitute the natural reservoir of the virus as they continuously shed EAV in their semen...
April 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28423667/saline-is-a-more-appropriate-solution-for-microvesicles-for-flow-cytometric-analyses
#18
Xing Xin, Peiling Zhang, Xing Fu, Xia Mao, Fankai Meng, Ming Tian, Xiaojian Zhu, Hanying Sun, Li Meng, Jianfeng Zhou
Microvesicles (MVs) are carriers of molecular and oncogenic signatures present in subsets of tumor cells and tumor-associated stroma, and a focus of cancer research. Although methods to detect MVs are mature, we were concerned that the buffer used could lead to false results when quantitating MVs by flow cytometry. In this work,we detected MVs by flow cytometry withthree different solutions: water, saline, and phosphate-buffered saline (PBS). The results demonstrated that PBS, when reacted with annexin V binding buffer, produced nano-sized vesicles even when there were no MVs in the sample...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423197/diabetic-kidney-transplant-recipients-impaired-infection-control-and-increased-alloreactivity
#19
Thomas Schachtner, Maik Stein, Petra Reinke
BACKGROUND: Posttransplantation diabetes mellitus (PTDM) has been associated with inferior patient and allograft outcomes. However, previous studies didn't identify differences in infection control and alloreactivity. METHODS: We studied 449 kidney transplant recipients (KTRs) between 2005 and 2013. 50 (11.1%) KTRs were diagnosed with PTDM and 60 (13.4%) KTRs with pre-existing diabetes. Samples were collected pretransplantation, at +1, +2, +3 months posttransplantation...
April 19, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28422864/ketamine-as-adjuvant-analgesics-for-patients-with-refractory-cancer-pain-does-affect-il-2-ifn-%C3%AE-expression-of-t-cells-in-vitro-a-prospective-randomized-double-blind-study
#20
Naibao Zhou, Zhijian Fu, Hao Li, Kaiguo Wang
BACKGROUND: Ketamine has been used as an analgesic adjuvant with morphine in the treatment of refractory cancer pain recently. But both morphine and ketamine have been reported to produce a number of immunomodulatory effects. The current study was performed to assess whether the concentration of ketamine, as adjuvant analgesics for patient with refractory cancer pain, was related to its effect on T cells interleukin-2 (IL-2)/interferon-γ (IFN-γ) expression in vitro. METHODS: Peripheral blood mononuclear cells (PBMCs) were isolated from venous blood of patients with refractory cancer pain over a Ficoll-Hypaque density gradient...
April 2017: Medicine (Baltimore)
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