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https://www.readbyqxmd.com/read/27910206/balance-between-il-3-and-type-iinterferons-and-their-interrelationship-with-fasl-dictates-lifespan-and-effector-functions-of-human-basophils
#1
B R Hagmann, A Odermatt, T Kaufmann, C A Dahinden, M Fux
BACKGROUND: In contrast to eosinophils and neutrophils, the regulation of the lifespan of human basophils is poorly defined, with the exception of the potent anti-apoptotic effect of IL-3 that also promotes pro-inflammatory effector functions and phenotypic changes. Type I IFNs (IFN-α, IFN-β), which are well known for their anti-viral activities, have the capacity to inhibit allergic inflammation. OBJECTIVE: To elucidate whether type I IFNs have the potential to abrogate the lifespan and/or effector functions of human basophils...
November 5, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27909160/evaluation-of-polymorphic-variants-in-apoptotic-genes-and-their-role-in-susceptibility-and-clinical-progression-to-systemic-lupus-erythematosus
#2
N Glesse, P Vianna, L M G Paim, M C C Matte, A K K Aguiar, P L Palhano, O A Monticielo, C V Brenol, R M Xavier, J A B Chies
BACKGROUND: Systemic lupus erythematosus (SLE) is an autoimmune disease marked by the disruption of the immune homeostasis. Patients exhibit a wide range of clinical manifestations, and environmental and genetic factors are involved in SLE pathogenesis. Evidence suggests that abnormalities in the cellular and molecular events that coordinate apoptosis may favour the generation of autoantigens involved in autoimmunity. In this way, the apoptotic deregulation may be affected by polymorphic variants in apoptotic-related genes...
November 30, 2016: Lupus
https://www.readbyqxmd.com/read/27894665/modulatory-effects-of-curcumin-on-apoptosis-and-cytotoxicity-related-molecules-in-htlv-1-associated-myelopathy-tropical-spastic-paraparesis-ham-tsp-patients
#3
Asadollah Mohammadi, Bahare Fazeli, Marzieh Taheri, Amirhossein Sahebkar, Zohreh Poursina, Vida Vakili, Shadi Zamanian Yazdi, Zahra Keramati, Reza Boostani, Ian Hampson, Houshang Rafatpanah
HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) is a chronic viral neuroinflammatory disease. Apoptosis might play an important role in the control of HTLV-1 viral infection. This study aims to determine if apoptosis process being able to occasionally distinguish between asymptomatic carriers (ACs) and HAM/TSP patients. Therefore, it could be used to predict the outcome of HTLV-1 infection. The mRNA expression of perforin, granzyme A, granzyme B, granulysin, Fas-Ligand (FasL), TNF-related apoptosis-inducing ligand (TRAIL), total Fas and membrane Fas in 21 HAM/TSP patients, 21 ACs and 21 healthy controls (HCs) was quantified...
November 25, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27886059/regulation-of-intrinsic-and-extrinsic-apoptotic-pathways-in-osteosarcoma-cells-following-oleandrin-treatment
#4
Yunlong Ma, Bin Zhu, Lei Yong, Chunyu Song, Xiao Liu, Huilei Yu, Peng Wang, Zhongjun Liu, Xiaoguang Liu
Our previous study has reported the anti-tumor effect of oleandrin on osteosarcoma (OS) cells. In the current study, we mainly explored its potential regulation on intrinsic and extrinsic apoptotic pathway in OS cells. Cells apoptosis, reactive oxygen species (ROS) and mitochondrial membrane potential (MMP) were detected using fluorescence staining and flow cytometry. Caspase-3 activity was detected using a commercial kit. The levels of cytoplasmic cytochrome c, mitochondrial cytochrome c, bcl-2, bax, caspase-9, Fas, FasL, caspase-8 and caspase-3 were detected by Western blotting...
November 23, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27884753/cell-free-dna-induced-apoptosis-of-granulosa-cells-by-oxidative-stress
#5
Yichun Guan, Wenjuan Zhang, Xingling Wang, Pengfei Cai, Qi Jia, Wenjie Zhao
BACKGROUND: Cell-free DNA is a DNA fragment that is produced by cell apoptosis which can affect the micro-environment of cell apoptosis. The levels of Cell-free DNA have been associated with successful rate of in vitro fertilization-embryo transfer (IVF-ET) and embryonic development. Our aim is to determine the relationship between cell-free DNA and embryo quality. The mechanisms of cell-free DNA in granulose and the apoptosis will be determined also. METHODS: The study enrolled patients who were undergone IVF for the first time and grouped the patients as pregnant (n=130) and non-pregnant (n=59)...
November 21, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27879682/ziyuglycoside-i-inhibits-the-proliferation-of-mda-mb-231-breast-carcinoma-cells-through-inducing-p53-mediated-g2-m-cell-cycle-arrest-and-intrinsic-extrinsic-apoptosis
#6
Xue Zhu, Ke Wang, Kai Zhang, Ting Zhang, Yongxiang Yin, Fei Xu
BACKGROUND: Due to the aggressive clinical behavior, poor outcome, and lack of effective specific targeted therapies, triple-negative breast cancer (TNBC) has currently been recognized as one of the most malignant types of tumors. In the present study, we investigated the cytotoxic effect of ziyuglycoside I, one of the major components extracted from Chinese anti-tumor herbal Radix Sanguisorbae, on the TNBC cell line MDA-MB-231. METHODS: The underlying molecular mechanism of the cytotoxic effect ziyuglycoside I on MDA-MB-231 cells was investigated with cell viability assay, flow cytometric analysis and Western blot...
November 22, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27868339/fasl-and-the-nkg2d-receptor-are-required-for-the-secretion-of-the-tag7-pgrp-s-hsp70-complex-by-the-cytotoxic-cd8-lymphocytes
#7
Lidia P Sashchenko, Elena A Romanova, Olga K Ivanova, Tatiana N Sharapova, Denis V Yashin
Tag7 (PGRP-S or PGLYRP1), while possessing an antimicrobial activity, also exhibits an antitumor effect when in complex with the major heat shock protein Hsp70. The cytotoxic Tag7-Hsp70 complex is secreted by lymphocytes after interaction with the HLA-negative tumors. Previously, we have shown that IL-2 induces formation of the CD4(+) and CD8(+) cytotoxic subpopulations of human lymphocytes, which kill tumor cells through the FasL-Fas interaction. Here, we show that only the CD8(+) T cells are able to secrete the Tag7-Hsp70 complex...
November 20, 2016: IUBMB Life
https://www.readbyqxmd.com/read/27861138/bonny-light-crude-oil-induced-alteration-in-levels-of-testicular-stress-proteins-is-accompanied-by-apoptosis-in-rats-after-treatment-withdrawal
#8
Azubuike P Ebokaiwe, Premendu P Mathur, Ebenezer O Farombi
BACKGROUND: The folkloric use of Bonny light crude oil (BLCO) in the treatment of gastrointestinal disorders and as an anti-poison is a generally acceptable practice in the Niger Delta area of Nigeria. The testicular dysfunction induced by BLCO exposure is of public concern with a view to its folkloric usage. The present study investigated the effects of BLCO exposure and withdrawal on the levels of testicular stress proteins and apoptosis-related proteins in rats. METHODS: Adult male Wistar rats were exposed to 800 mg/kg body weight of BLCO for 7 days...
November 18, 2016: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/27853379/fas-and-fasl-genetic-polymorphisms-impact-on-clinical-outcome-of-malignant-pleural-mesothelioma
#9
Manal El-Hamamsy, Ramy R Ghali, Amr S Saad, Sara M Shaheen, Ahmed M Salem
BACKGROUND: FAS-670 A>G (rs1800682) and FASL-844 C>T (rs763110) polymorphisms have been previously correlated with clinical outcome of non-small cell lung cancer (NSCLC) and breast and bladder cancers. We investigated the influence of these polymorphisms on clinical outcome of malignant pleural mesothelioma (MPM) patients. PATIENTS AND METHODS: In this cohort study (NCT02269878), 68 epithelioid MPM Egyptian patients treated with first-line platinum-based chemotherapy were recruited in the period between April 2014 and May 2015...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27849168/overexpression-of-soluble-fas-ligand-following-adeno-associated-virus-gene-therapy-prevents-retinal-ganglion-cell-death-in-chronic-and-acute-murine-models-of-glaucoma
#10
Anitha Krishnan, Fei Fei, Alexander Jones, Patricia Busto, Ann Marshak-Rothstein, Bruce R Ksander, Meredith Gregory-Ksander
Glaucoma is a multifactorial disease resulting in the death of retinal ganglion cells (RGCs) and irreversible blindness. Glaucoma-associated RGC death depends on the proapoptotic and proinflammatory activity of membrane-bound Fas ligand (mFasL). In contrast to mFasL, the natural cleavage product, soluble Fas ligand (sFasL) inhibits mFasL-mediated apoptosis and inflammation and, therefore, is an mFasL antagonist. DBA/2J mice spontaneously develop glaucoma and, predictably, RGC destruction is exacerbated by expression of a mutated membrane-only FasL gene that lacks the extracellular cleavage site...
December 15, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27836015/transplantation-of-gingiva-derived-mesenchymal-stem-cells-ameliorates-collagen-induced-arthritis
#11
Yongchun Gu, Songtao Shi
BACKGROUND: Rheumatoid arthritis (RA) is a chronic, progressive, and inflammatory autoimmune disease which primarily affects the small arthrodial joints. The aim of this study was to test whether transplantation of mesenchymal stem cells derived from gingival tissue (GMSCs) could ameliorate collagen-induced arthritis (CIA), and to explore the role of the FasL/Fas pathway in the underlying mechanism. METHODS: DBA/1 mice with collagen II-induced arthritis were treated with GMSCs from the C57BL/6 J mouse, the B6Smn...
November 11, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27824316/nickel-chloride-nicl2-in-hepatic-toxicity-apoptosis-g2-m-cell-cycle-arrest-and-inflammatory-response
#12
Hongrui Guo, Hengmin Cui, Jing Fang, Zhicai Zuo, Junliang Deng, Xun Wang, Ling Zhao, Kejie Chen, Jie Deng
Up to now, the precise mechanism of Ni toxicology is still indistinct. Our aim was to test the apoptosis, cell cycle arrest and inflammatory response mechanism induced by NiCl2 in the liver of broiler chickens. NiCl2 significantly increased hepatic apoptosis. NiCl2 activated mitochondria-mediated apoptotic pathway by decreasing Bcl-2, Bcl-xL, Mcl-1, and increasing Bax, Bak, caspase-3, caspase-9 and PARP mRNA expression. In the Fas-mediated apoptotic pathway, mRNA expression levels of Fas, FasL, caspase-8 were increased...
November 5, 2016: Aging
https://www.readbyqxmd.com/read/27823624/antitumor-lignanamides-from-the-aerial-parts-of-corydalis-saxicola
#13
Bin Zhang, Rizhen Huang, Jing Hua, Hong Liang, Yingming Pan, Lumei Dai, Dong Liang, Hengshan Wang
BACKGROUND: Cancer is one of the leading cause of unnatural death globally. There is still a great need for effective anticancer agents from plant sources. Corydalis saxicola Bunting is a medicinal plant that is traditionally used to treat various diseases in southwest China. Previous phytochemical investigations of C. saxicola have focused on isoquinoline alkaloids that have been isolated, which have activity against anti-hepatitis B virus and inhibit DNA topoisomerase I. However, the exploration of other classes of constituents and their bioactivities needs further study...
December 1, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27812144/diagnostic-performance-of-fas-ligand-mrna-expression-for-acute-rejection-after-kidney-transplantation-a-systematic-review-and-meta-analysis
#14
Baoli Heng, Hongwen Ding, Haolin Ren, Liping Shi, Jie Chen, Xun Wu, Caiyong Lai, Ganshen Yu, Yin Xu, Zexuan Su
BACKGROUND: The value of Fas ligand (FASL) as a diagnostic immune marker for acute renal rejection is controversial; this meta-analysis aimed to clarify the role of FASL in acute renal rejection. METHODS: The relevant literature was included by systematic searching the MEDLINE, EMBASE, and Cochrane Library databases. Accuracy data for acute rejection (AR) and potential confounding variables (the year of publication, area, sample source, quantitative techniques, housekeeping genes, fluorescence staining, sample collection time post-renal transplantation, and clinical classification of AR) were extracted after carefully reviewing the studies...
2016: PloS One
https://www.readbyqxmd.com/read/27810530/fluoride-reduced-the-immune-privileged-function-of-mouse-sertoli-cells-via-the-regulation-of-fas-fasl-system
#15
Zilong Sun, Qingli Nie, Lianjie Zhang, Ruiyan Niu, Jundong Wang, Shaolin Wang
Previous investigations have demonstrated the adverse impacts of fluoride on Sertoli cells (SCs), such as oxidative stress and apoptosis. SCs are the crucial cellular components that can create the immune privileged environment in testis. However, the effect of fluoride on SCs immune privilege is unknown. In this study, mouse SCs were exposed to sodium fluoride with varying concentrations of 10(-5), 10(-4), and 10(-3) mol/L to establish the model of fluoride-treated SCs (F-SCs) in vitro. After 48 h of incubation, F-SCs were transplanted underneath the kidney capsule of mice for 21 days, or cocultured with spleen lymphocytes for another 48 h...
October 27, 2016: Chemosphere
https://www.readbyqxmd.com/read/27806327/nickel-chloride-induced-apoptosis-via-mitochondria-and-fas-mediated-caspase-dependent-pathways-in-broiler-chickens
#16
Hongrui Guo, Hengmin Cui, Jing Fang, Zhicai Zuo, Junliang Deng, Xun Wang, Ling Zhao, Bangyuan Wu, Kejie Chen, Jie Deng
Ni, a metal with industrial and commercial uses, poses a serious hazard to human and animal health. In the present study, we used flow cytometry, immunohistochemistry and qRT-PCR to investigate the mechanisms of NiCl2-induced apoptosis in kidney cells. After treating 280 broiler chickens with 0, 300, 600 or 900 mg/kg NiCl2 for 42 days, we found that two caspase-dependent pathways were involved in the induced renal tubular cell apoptosis. In the mitochondria-mediated caspase-dependent apoptotic pathway, cyt-c, HtrA2/Omi, Smac/Diablo, apaf-1, PARP, and caspase-9, 3, 6 and 7 were all increased, while...
October 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/27806260/crystal-structure-of-the-complex-of-human-fasl-and-its-decoy-receptor-dcr3
#17
Weifeng Liu, Udupi Ramagopal, Huiyong Cheng, Jeffrey B Bonanno, Rafael Toro, Rahul Bhosle, Chenyang Zhan, Steven C Almo
The apoptotic effect of FasL:Fas signaling is disrupted by DcR3, a unique secreted member of the tumor necrosis factor receptor superfamily, which also binds and neutralizes TL1A and LIGHT. DcR3 is highly elevated in patients with various tumors and contributes to mechanisms by which tumor cells to evade host immune surveillance. Here we report the crystal structure of FasL in complex with DcR3. Comparison of FasL:DcR3 structure with our earlier TL1A:DcR3 and LIGHT:DcR3 structures supports a paradigm involving the recognition of invariant main-chain and conserved side-chain functionalities, which is responsible for the recognition of multiple TNF ligands exhibited by DcR3...
November 1, 2016: Structure
https://www.readbyqxmd.com/read/27803386/characterization-of-isoniazid-specific-t-cell-clones-in-patients-with-anti-tuberculosis-drug-related-liver-and-skin-injury
#18
Toru Usui, Xiaoli Meng, Katy Saide, John Farrell, Paul Thomson, Paul Whitaker, John Watson, Neil S French, B Kevin Park, Dean J Naisbitt
Isoniazid, rifampicin, pyrazinamide and ethambutol are commonly used for the treatment of tuberculosis. Drug exposure is occasionally associated with liver and/or skin injury. The aim of this study was to determine whether drug-specific T-cells are detectable in patients with adverse reactions and if so characterize the nature of the T-cell response. PBMC from 6 patients with anti-tuberculosis drug-related adverse reactions (4 liver, 2 skin) were used to detect drug-responsive T-lymphocytes. Positive lymphocyte transformation test and/or ELIspot results were observed with all 6 patients...
November 1, 2016: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/27802519/antiapoptotic-effect-of-acetylcholine-in-fas-induced-apoptosis-in-human-keratocytes
#19
Marta Sloniecka, Ludvig J Backman, Patrik Danielson
Purpose: To investigate the possible antiapoptotic effect of acetylcholine (ACh) in Fas-mediated apoptosis of primary human keratocytes in vitro, and to explore the underlying mechanism. Methods: Primary human keratocytes were isolated from healthy corneas. Fas ligand (FasL) was used to induce apoptosis in keratocytes. Cell death was assessed by ELISA. Activity of caspase-3, -7, -8, and -9 was measured with luminescent caspase activity assays. Expression of nuclear factor-κB (NF-κB) gene was assessed with RT-quantitative (q)PCR...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27799932/fas-versatile-signaling-and-beyond-pivotal-role-of-tyrosine-phosphorylation-in-context-dependent-signaling-and-diseases
#20
REVIEW
Krittalak Chakrabandhu, Anne-Odile Hueber
The Fas/FasL system is known, first and foremost, as a potent apoptosis activator. While its proapoptotic features have been studied extensively, evidence that the Fas/FasL system can elicit non-death signals has also accumulated. These non-death signals can promote survival, proliferation, migration, and invasion of cells. The key molecular mechanism that determines the shift from cell death to non-death signals had remained unclear until the recent identification of the tyrosine phosphorylation in the death domain of Fas as the reversible signaling switch...
2016: Frontiers in Immunology
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