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https://www.readbyqxmd.com/read/29245183/increased-expression-and-modulated-regulatory-activity-of-co-inhibitory-receptors-pd-1-tigit-and-tim-3-in-lymphocytes-of-systemic-sclerosis-patients
#1
Michelle Fleury, Anna C Belkina, Elizabeth A Proctor, Christopher Zammitti, Robert W Simms, Douglas A Lauffenburger, Jennifer E Snyder-Cappione, Robert Lafyatis, Hans Dooms
OBJECTIVE: Immune dysfunction is an important component of the disease process underlying Systemic Sclerosis (SSc), but the mechanisms contributing to altered immune cell function in SSc remain poorly defined. Here, we measured the expression and function of the co-inhibitory receptors (co-IRs) PD-1, TIGIT, TIM-3, and LAG-3 in lymphocyte subsets from the peripheral blood of SSc patients. METHODS: Co-IR expression levels on immune cell subsets were analyzed using a 16-color flow cytometry panel...
December 15, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29238930/modeling-the-impacts-of-ambient-temperatures-on-cardiovascular-mortality-in-yinchuan-evidence-from-a-northwestern-city-of-china
#2
Huiling Zhang, Qingan Wang, Yajuan Zhang, Yi Yang, Yi Zhao, Jianren Sang, Yulong Zhang, Yine Zhang, Fan Xie, Shanshan Li, Yuhong Zhang, Yuming Guo
No evidence is available on whether cardiovascular mortality is affected by the ambient temperatures in Yinchuan, which is located in the northwestern region of China, with a typical continental semi-humid semi-arid climate. Daily data on cardiovascular mortality and meteorological factors was collected from Yinchuan city for the period of 2010-2015. A distributed lag non-linear model with quasi-Poisson link was used to assess the association between daily temperatures and cardiovascular deaths, after controlling for seasonality, day of the week, atmospheric pressure, humidity, sunshine duration, and wind speed...
December 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29232699/cxcr4-blockade-decreases-cd4-t-cell-exhaustion-and-improves-survival-in-a-murine-model-of-polymicrobial-sepsis
#3
Kimberly M Ramonell, Wenxiao Zhang, Annette Hadley, Ching-Wen Chen, Katherine T Fay, John D Lyons, Nathan J Klingensmith, Kevin W McConnell, Craig M Coopersmith, Mandy L Ford
Sepsis is a dysregulated systemic response to infection involving many inflammatory pathways and the induction of counter-regulatory anti-inflammatory processes that results in a state of immune incompetence and can lead to multi-organ failure. CXCR4 is a chemokine receptor that, following ligation by CXCL12, directs cells to bone marrow niches and also plays an important role in T cell cosignaling and formation of the immunological synapse. Here, we investigated the expression and function of CXCR4 in a murine model of polymicrobial sepsis...
2017: PloS One
https://www.readbyqxmd.com/read/29228684/atorvastatin-downregulates-co-inhibitory-receptor-expression-by-targeting-ras-activated-mtor-signalling
#4
Isobel Okoye, Afshin Namdar, Lai Xu, Nicole Crux, Shokrollah Elahi
Regulation of T cell function in the steady state is mediated by co-inhibitory receptors or immune checkpoints such as PD-1, CTLA-4, TIM-3 and LAG-3. Persistent antigen stimulation, during chronic viral infections and cancer, results in sustained expression of multiple co-inhibitory receptors and subsequently poor effector T cell function. Immune checkpoint blockade using monoclonal antibodies against PD-1, PDL-1 and CTLA-4 has been implemented as an immunotherapy strategy- resulting in restoration of T cell function and reduction of viral load or tumour growth...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29223855/increased-adam10-expression-in-patients-with-immune-thrombocytopenia
#5
Jianlin Qiao, Qi Luo, Na Liu, Guangyu Wei, Xiaoqing Wu, Jun Lu, Kai Tang, Yulu Wu, Jie Zi, Xiaoqian Li, Yun Liu, Wen Ju, Kunming Qi, Zhiling Yan, Zhenyu Li, Lingyu Zeng, Kailin Xu
Immune thrombocytopenia (ITP) is an autoimmune disease, which is characterized by abnormal of T immunity. A disintegrin and metalloproteinase (ADAM) 10, a member of proteinase family, has been demonstrated to regulate T cell proliferation and effector function. Considering the closely association of dysregulation of T cell function with ITP, whether ADAM10 involves in the pathogenesis of ITP remains unclear. In this study, 54 active ITP patients, 18 ITP in remission and 24 age and gender matched healthy control were enrolled...
December 7, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29222993/supplementation-of-gamma-aminobutyric-acid-gaba-affects-temporal-but-not-spatial-visual-attention
#6
Anna Leonte, Lorenza S Colzato, Laura Steenbergen, Bernhard Hommel, Elkan G Akyürek
In a randomized, double-blind, and placebo-controlled experiment, the acute effects of gamma-aminobutyric acid (GABA) supplementation on temporal and spatial attention in young healthy adults were investigated. A hybrid two-target rapid serial visual presentation task was used to measure temporal attention and integration. Additionally, a visual search task was used to measure the speed and accuracy of spatial attention. While temporal attention depends primarily on the distribution of limited attentional resources across time, spatial attention represents the engagement and disengagement by relevant and irrelevant stimuli across the visual field...
December 6, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/29215756/downregulation-of-regulatory-t-cell-function-in-patients-with-delayed-fracture-healing
#7
Hui Jiang, Yunfan Ti, Yicun Wang, Jun Wang, Menghan Chang, Jianning Zhao, Guojing Sun
Bone fracture healing is a multistage regenerative process that requires the collaboration of various cell types, with approximately 5% - 10% of fractures not healing properly. Accumulating evidence suggests that dysregulations in the immune system are associated with defective healing. In a cohort of 30 bone fracture patients between 50 and 62 years of age, 8 patients displayed delayed healing. Compared to the 22 normal healing patients, these 8 delayed healing patients presented significantly lower frequencies of CD4+ CD25hi Foxp3+ canonical regulatory T cells immediately following bone fracture and early on during the healing process...
December 7, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29214476/acute-effects-of-air-pollution-on-spontaneous-abortion-premature-delivery-and-stillbirth-in-ahvaz-iran-a-time-series-study
#8
Maryam Dastoorpoor, Esmaeil Idani, Gholamreza Goudarzi, Narges Khanjani
Living in areas with high air pollution may have adverse effects on human health. There are few studies about the association between breathing polluted air and adverse pregnancy outcomes in the Middle East. The aim of this study was to determine the relationship between air pollution and spontaneous abortion, premature birth, and stillbirth in Ahvaz. A time-series study was conducted. Data about spontaneous abortion, premature deliveries, and stillbirth was collected from Ahvaz Imam Khomeini Hospital. Air pollution data including NO, CO, NO2, PM10, SO2, O3, and climate data were, respectively, collected from the Environmental Protection Agency and the Khuzestan Province Meteorology Office from March 2008 until March 2015...
December 6, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29211042/newly-emerging-immune-checkpoints-promises-for-future-cancer-therapy
#9
REVIEW
Robert J Torphy, Richard D Schulick, Yuwen Zhu
Cancer immunotherapy has been a great breakthrough, with immune checkpoint inhibitors leading the way. Despite the clinical effectiveness of certain immune checkpoint inhibitors, the overall response rate remains low, and the effectiveness of immunotherapies for many tumors has been disappointing. There is substantial interest in looking for additional immune checkpoint molecules that may act as therapeutic targets for cancer. Recent advances during the last decade have identified several novel immune checkpoint targets, including lymphocyte activation gene-3 (LAG-3), B and T lymphocyte attenuator (BTLA), programmed death-1 homolog (PD-1H), T-cell immunoglobulin and immunoreceptor tyrosine-based inhibitory motif domain (TIM-3)/carcinoembryonic antigen cell adhesion molecule 1 (CEACAM1), and the poliovirus receptor (PVR)-like receptors...
December 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29193141/behavioral-variability-as-avoidance-behavior
#10
Amilcar Rodrigues Fonseca Júnior, Maria Helena Leite Hunziker
This study aimed to investigate whether variable patterns of responses can be acquired and maintained by negative reinforcement under an avoidance contingency. Six male Wistar rats were exposed to sessions in which behavioral variability was reinforced according to a Lag contingency: Sequences of three responses on two levers had to differ from one, two or three previous sequences for shocks to be avoided (Lag 1, Lag 2 and Lag 3, respectively). Performance under the Lag conditions was compared with performance on a Yoke condition in which the animals received the same reinforcement frequency and distribution as in the Lag condition but behavioral variability was not required...
November 2017: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/29190182/checkpoint-inhibition-in-pediatric-hematologic-malignancies
#11
Kara L Davis, Archana M Agarwal, Anupam R Verma
Immune surveillance comprising of adaptive and innate immune systems is naturally designed to eliminate cancer development; overexpression of inhibitory receptors and their ligands prevent this check and lead to evasion and hence cancer progression and metastasis. The use of tumor-specific monoclonal antibodies (MAbs) targeting these checkpoint regulators is promising and has led to this novel field of cancer immunotherapy. The first antibody directed against cytotoxic T-lymphocyte associated protein 4 (CTLA-4), ipilimumab, showed promising results in clinical trials and was approved by the US Food and Drug Administration (FDA) for the treatment of metastatic melanoma in 2011...
November 30, 2017: Pediatric Hematology and Oncology
https://www.readbyqxmd.com/read/29165121/association-of-asian-dust-with-daily-medical-consultations-for-pollinosis-in-fukuoka-city-japan
#12
Soyoko Sakata, Shoko Konishi, Chris Fook Sheng Ng, Reiko Kishikawa, Chiho Watanabe
BACKGROUND: The objective is to examine the association between AD and the daily number of medical consultations for pollinosis in Fukuoka City. METHODS: We analyzed 65,488 daily medical consultations for pollinosis from 4 clinics in Fukuoka City from February to April, 1989-2012. Time-series analyses were performed to estimate the clinic-specific relative risk (RR) of clinical pollinosis associated with AD, adjusting for airborne pollen, suspended particulate matter (SPM), meteorological and temporal factors...
April 4, 2017: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29163783/abundant-expression-of-tim-3-lag-3-pd-1-and-pd-l1-as-immunotherapy-checkpoint-targets-in-effusions-of-mesothelioma-patients
#13
Elly Marcq, Jorrit De Waele, Jonas Van Audenaerde, Eva Lion, Eva Santermans, Niel Hens, Patrick Pauwels, Jan P van Meerbeeck, Evelien L J Smits
Malignant pleural mesothelioma (MPM) is an aggressive cancer with an increasing incidence, poor prognosis and limited effective treatment options. Hence, new treatment strategies are warranted which include immune checkpoint blockade approaches with encouraging preliminary data. Research on the immunological aspects of the easily accessible mesothelioma microenvironment could identify prognostic and/or predictive biomarkers and provide useful insights for developing effective immunotherapy. In this context, we investigated the immune cell composition of effusions (pleural and ascites fluids) from 11 different chemotherapy-treated MPM patients...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29163509/downregulated-il-21-response-and-t-follicular-helper-cell-exhaustion-correlate-with-compromised-cd8-t-cell-immunity-during-chronic-toxoplasmosis
#14
Magali M Moretto, SuJin Hwang, Imtiaz A Khan
CD8 T cells are important for maintaining the chronicity of Toxoplasma gondii infection. In a T. gondii encephalitis susceptible model, we recently demonstrated that CD4 T cells play an essential helper role in the maintenance of the effector response and CD8 T cell dysfunctionality was linked to CD4 T cell exhaustion. However, CD4 T cells are constituted of different subsets with various functions and the population(s) providing help to the CD8 T cells has not yet been determined. In the present study, T follicular helper cells (Tfh), which are known to be essential for B cell maturation and are one of the main sources of IL-21, were significantly increased during chronic toxoplasmosis...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29135922/targeting-immune-cell-checkpoints-during-sepsis
#15
REVIEW
Naeem K Patil, Yin Guo, Liming Luan, Edward R Sherwood
Immunosuppression is increasingly being recognized as one of the causes of increased morbidity and mortality during sepsis. Both innate and adaptive immune system dysfunction have been shown to cause an impaired ability to eradicate the primary infection and also lead to frequent occurrence of secondary opportunistic infections. Pre-clinical and clinical studies have shown that inhibitory immune checkpoint molecules, including programmed death-1 (PD-1), programmed death ligand-1 (PD-L1), cytotoxic T lymphocyte antigen-4 (CTLA-4), T cell membrane protein-3 (TIM-3), Lymphocyte activation-gene-3 (LAG-3) and 2B4, are upregulated during the course of sepsis...
November 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29110713/temporal-and-spatial-distribution-of-lumpy-skin-disease-outbreaks-in-ethiopia-in-the-period-2000-to-2015
#16
W Molla, M C M de Jong, K Frankena
BACKGROUND: Lumpy skin disease (LSD) is an infectious viral disease of cattle caused by a virus of the genus Capripoxvirus. LSD was reported for the first time in Ethiopia in 1981 and subsequently became endemic. This time series study was undertaken with the aims of identifying the spatial and temporal distribution of LSD outbreaks and to forecast the future pattern of LSD outbreaks in Ethiopia. RESULTS: A total of 3811 LSD outbreaks were reported in Ethiopia between 2000 and 2015...
November 6, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29092013/lag-3-another-brake-to-release-in-breast-cancer
#17
M Kok
No abstract text is available yet for this article.
October 30, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29080013/meta-analytic-evaluation-of-the-association-between-head-injury-and-risk-of-amyotrophic-lateral-sclerosis
#18
Yukari Watanabe, Takamitsu Watanabe
Head injury is considered as a potential risk factor for amyotrophic lateral sclerosis (ALS). However, several recent studies have suggested that head injury is not a cause, but a consequence of latent ALS. We aimed to evaluate such a possibility of reverse causation with meta-analyses considering time lags between the incidence of head injuries and the occurrence of ALS. We searched Medline and Web of Science for case-control, cross-sectional, or cohort studies that quantitatively investigated the head-injury-related risk of ALS and were published until 1 December 2016...
October 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/29069302/mechanistic-overview-of-immune-checkpoints-to-support-the-rational-design-of-their-combinations-in-cancer-immunotherapy
#19
A Rotte, J Y Jin, V Lemaire
Checkpoint receptor blockers, known to act by blocking the pathways that inhibit immune cell activation and stimulate immune responses against tumor cells, have been immensely successful in the treatment of cancer. Among several checkpoint receptors of immune cells, cytotoxic T-lymphocyte-associated protein-4 (CTLA-4), programmed cell death protein-1 (PD-1), T-cell immunoglobulin and ITIM domain (TIGIT), T-cell immunoglobulin-3 (TIM-3) and lymphocyte activation gene 3 (LAG-3) are the most commonly targeted checkpoints for cancer immunotherapy...
October 24, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29058578/temporal-dynamic-of-malaria-in-a-suburban-area-along-the-niger-river
#20
Mahamadou Soumana Sissoko, Kourane Sissoko, Bourama Kamate, Yacouba Samake, Siaka Goita, Abdoulaye Dabo, Mama Yena, Nadine Dessay, Renaud Piarroux, Ogobara K Doumbo, Jean Gaudart
BACKGROUND: Even if rainfall and temperature are factors classically associated to malaria, little is known about other meteorological factors, their variability and combinations related to malaria, in association with river height variations. Furthermore, in suburban area, urbanization and growing population density should be assessed in relation to these environmental factors. The aim of this study was to assess the impact of combined environmental, meteorological and hydrological factors on malaria incidence through time in the context of urbanization...
October 23, 2017: Malaria Journal
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