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programmed death-1

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https://www.readbyqxmd.com/read/28938671/pd-1-pd-l1-antibodies-efficacy-and-safety-versus-docetaxel-monotherapy-in-advanced-nsclc-patients-after-first-line-treatment-option-systems-assessment
#1
Qiang Su, Zhigang Sun, Chenguang Zhang, Yanli Hou, Bangwei Cao
Meta-analysis was conducted to systematically assess the effectiveness and safety of programmed cell death protein-1 or ligand-1 (PD-1 or PD-L1) antibodies versus docetaxel alone in advanced non small cell lung cancer (NSCLC). In addition, the prognostic significance of PD-L1 expression in advanced NSCLC was also investigated. 5 eligible studies including 3579 patients were identified through comprehensive search of multiple databases. The results showed that pooled hazard ratios (HR) for overall survival (OS) and progression free survival (PFS) were 0...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938660/prognostic-value-of-programmed-death-ligand-1-in-sarcoma-a-meta-analysis
#2
Zhenhua Zhu, Zheng Jin, Mei Zhang, Yajun Tang, Guang Yang, Xiaowei Yuan, Jihang Yao, Dahui Sun
BACKGROUND: The prognostic role of programmed death-ligand 1 (PD-L1) in sarcoma remains controversial. We performed a meta-analysis so as to investigate the impact of PD-L1 on clinicopathlogical findings and survival outcomes in sarcoma. MATERIALS AND METHODS: A comprehensive search in PubMed, Embase and the Cochrane Library was conducted for relevant studies. The odds ratios or hazard ratios, at 95% confidence intervals were used as measures for investigation of the correlation between PD-L1 expression and clinicopathlogical features or survival outcomes...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938609/pegylated-arginine-deiminase-can-modulate-tumor-immune-microenvironment-by-affecting-immune-checkpoint-expression-decreasing-regulatory-t-cell-accumulation-and-inducing-tumor-t-cell-infiltration
#3
Elena Brin, Katherine Wu, Hsin-Tze Lu, Yudou He, Zhaoming Dai, Wei He
PEGylated arginine deiminase (ADI-PEG 20) is being investigated in clinical studies in arginine auxotrophic cancers and is well-tolerated. The anti-tumor properties of ADI-PEG 20 have been extensively investigated - ADI-PEG 20 inhibits the growth of auxotrophic cancers in vitro and in vivo - however, its impact on immune cells is largely unknown. Here we report the potential impact of ADI-PEG 20 on the tumor immune microenvironment. ADI-PEG 20 induced immunosuppressive programmed death-ligand 1 expression on some cancer cells in vitro, but the magnitude of the increase was cell line dependent and in most relatively small...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938605/combined-prognostic-effect-of-pd-l1-expression-and-immunoscore-in-microsatellite-unstable-advanced-gastric-cancers
#4
Kyung-Ju Kim, Han Kwang Yang, Woo Ho Kim, Gyeong Hoon Kang
BACKGROUND: The aim of this study was to evaluate how programmed death-ligand-1 (PD-L1) expression is linked to the immunoscore in the context of the tumor microenvironment and to assess the differential prognostic value of PD-L1 expression according to the immunoscore in 153 patients with microsatellite instability-high (MSI-H) advanced gastric cancer (GC). RESULTS: We found that T-PD-L1 (+) and I-PD-L1 (+) were significantly associated with a high immunoscore...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938570/pd-l1-expression-as-poor-prognostic-factor-in-patients-with-non-squamous-non-small-cell-lung-cancer
#5
Cuiling Zhou, Jianjun Tang, Huanhuan Sun, Xiaobin Zheng, Zhanyu Li, Tiantian Sun, Jie Li, Shuncong Wang, Xiuling Zhou, Hongliu Sun, Zhibin Cheng, Hongyu Zhang, Haiqing Ma
OBJECTIVES: The role of programmed cell death ligand 1 (PD-L1) in non-small cell lung cancer (NSCLC), especially according to histologic type, remains controversial. The purpose of this study was to assess PD-L1 expression and its association with overall survival (OS) and clinicopathologic characteristics in NSCLC. MATERIALS AND METHODS: Formalin-fixed paraffin-embedded specimens were obtained from 108 patients with surgically resected primary NSCLC. PD-L1 expression was assessed via immunohistochemistry using a histochemistry score system...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938530/cd3xpdl1-bi-specific-t-cell-engager-bite-simultaneously-activates-t-cells-and-nkt-cells-kills-pdl1-tumor-cells-and-extends-the-survival-of-tumor-bearing-humanized-mice
#6
Lucas A Horn, Nicholas G Ciavattone, Ryan Atkinson, Netsanet Woldergerima, Julia Wolf, Virginia K Clements, Pratima Sinha, Munanchu Poudel, Suzanne Ostrand-Rosenberg
Bi-specific T cell engagers (BiTEs) activate T cells through CD3 and target activated T cells to tumor-expressed antigens. BiTEs have shown therapeutic efficacy in patients with liquid tumors; however, they do not benefit all patients. Anti-tumor immunity is limited by Programmed Death 1 (PD1) pathway-mediated immune suppression, and patients who do not benefit from existing BiTES may be non-responders because their T cells are anergized via the PD1 pathway. We have designed a BiTE that activates and targets both T cells and NKT cells to PDL1(+) cells...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28936570/consumption-of-alcohol-and-cardiovascular-disease-mortality-a-16%C3%A2-year-follow-up-of-115-592-norwegian-men-and-women-aged-40-44%C3%A2-years
#7
Aage Tverdal, Per Magnus, Randi Selmer, Dag Thelle
We tested whether teetotalism explains the upturn in cardiovascular risk for non-drinkers and whether wine is a more favorable alcohol type. We studied 115,592 men and women aged 40-44 years who participated in the age 40 program in Norway in 1994-1999 and were followed for an average of 16 years with 550 cardiovascular deaths. Self-reported number of glasses of beer, wine and spirits during 14 days was transformed to alcohol units/day. One unit is approximately 8 grams of pure alcohol. The mean and median number of alcohol units/day were 0...
September 21, 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/28936553/significance-of-evaluating-tumor-infiltrating-lymphocytes-tils-and-programmed-cell-death-ligand-1-pd-l1-expression-in-breast-cancer
#8
REVIEW
Sasagu Kurozumi, Takaaki Fujii, Hiroshi Matsumoto, Kenichi Inoue, Masafumi Kurosumi, Jun Horiguchi, Hiroyuki Kuwano
The immune system affects all phases of tumor growth from initiation to progression and dissemination. Tumor-infiltrating lymphocytes (TILs) are mononuclear immune cells that infiltrate tumor tissue. Several retrospective studies have suggested the potential of TILs as a prognostic as well as predictive factor of chemotherapy in some breast cancers. On the other hand, programmed cell death protein-1 (PD-1) and programmed cell death-ligand 1 (PD-L1) eliminate T cell activation in various types of cancers. Prospective trials to evaluate the efficacy of antibody agents to PD-1 and PD-L1 are ongoing in patients with breast cancer...
September 21, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28935898/pd-l1-is-an-activation-independent-marker-of-brown-adipocytes
#9
Jessica R Ingram, Michael Dougan, Mohammad Rashidian, Marko Knoll, Edmund J Keliher, Sarah Garrett, Scott Garforth, Olga S Blomberg, Camilo Espinosa, Atul Bhan, Steven C Almo, Ralph Weissleder, Harvey Lodish, Stephanie K Dougan, Hidde L Ploegh
Programmed death ligand 1 (PD-L1) is expressed on a number of immune and cancer cells, where it can downregulate antitumor immune responses. Its expression has been linked to metabolic changes in these cells. Here we develop a radiolabeled camelid single-domain antibody (anti-PD-L1 VHH) to track PD-L1 expression by immuno-positron emission tomography (PET). PET-CT imaging shows a robust and specific PD-L1 signal in brown adipose tissue (BAT). We confirm expression of PD-L1 on brown adipocytes and demonstrate that signal intensity does not change in response to cold exposure or β-adrenergic activation...
September 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28935250/engineered-cells-for-costimulatory-enhancement-combined-with-il-21-enhance-the-generation-of-pd-1-disrupted-ctls-for-adoptive-immunotherapy
#10
Jie Shao, Qiuping Xu, Shu Su, Fanyan Meng, Zhengyun Zou, Fangjun Chen, Juan Du, Xiaoping Qian, Baorui Liu
Blockade of the immune cell checkpoint inhibitors programmed death 1 (PD-1) and programmed death-ligand 1 (PD-L1) has become a powerful tool in cancer treatment, which is effective across various solid cancer types and hematologic malignancies. Our previous studies showed that by reducing immune tolerance, clustered regularly interspaced short palindromic repeats-associated protein 9 (CRISPR-Cas9) modified cytotoxic T lymphocytes (CTLs) rank highly in terms of immune responses and cytotoxicity. In this study, a genetically modified K562 cell line with surface expression of 4-1BBL was developed to expand PD-1-disrupted CTLs in vitro for further adoptive immunotherapy against cancer...
September 7, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28935016/-clinical-development-of-immune-checkpoint-inhibitors-in-patients-with-small-cell-lung-cancer
#11
Shuang Zhang, Jingjing Liu, Ying Cheng
Small cell lung cancer (SCLC) is a poorly differentiated high-grade neuroendocrine tumor, accounts for approximately 14% of all lung cancers. SCLC is characterized by rapid growth, early metastasis without effective treatments after recurrence. It is urgently need to improve the therapy of patients with SCLC. In recent years Tumor immunotherapy has shown promising efficacy, especially in immune checkpoints including inhibitors programmed cell-death protein 1 (PD-1) and cytotoxic T-lymphocyte-associated protein 4 (CTLA-4)...
September 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28934596/features-and-outcomes-of-methamphetamine-associated-pulmonary-arterial-hypertension
#12
Roham T Zamanian, Haley Hedlin, Paul Greuenwald, David M Wilson, Joshua I Segal, Michelle Jorden, Kristina Kudelko, Juliana Liu, Andrew Hsi, Allyson Rupp, Andrew J Sweatt, Rubin Tuder, Gerald J Berry, Marlene Rabinovitch, Ramona L Doyle, Vinicio De Jesus Perez, Steven M Kawut
RATIONALE: While amphetamines are recognized as "likely" agents to cause drugs and toxins associated pulmonary arterial hypertension (PAH), (meth)amphetamine associated PAH (Meth-APAH) has not been well described. OBJECTIVES: To prospectively characterize the clinical presentation, histopathology, and outcomes of Meth-APAH compared to those of idiopathic PAH (iPAH). METHODS AND MEASUREMENTS: We performed a prospective cohort study of Meth-APAH and iPAH patients presenting to the Stanford University Pulmonary Hypertension Program between 2003-2015...
September 21, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28933768/chronic-respiratory-diseases-in-the-regions-of-northern-russia-epidemiological-distinctions-in-the-results-of-a-national-population-study
#13
Marine H Gambaryan, Svetlana A Shalnova, Alexander D Deev, Oxana M Drapkina
The aim of the study is to investigate the epidemiological situation regarding chronic respiratory diseases in populations that inhabit different climatic-geographical regions of Russia, and to develop targeted programs for prevention of these diseases. METHODS: (1) a comparative analysis of the standardized mortality data in Russia and other selected regions of the Russian North using the European standard for respiratory diseases, in a population aged 25-64; and (2) data from a randomized cross-sectional epidemiological study, with subjects from three different climatic-geographical regions of Russia...
July 26, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28933588/death-by-over-eating-the-gaucher-disease-associated-gene-gba1-identified-in-a-screen-for-mediators-of-autophagic-cell-death-is-necessary-for-developmental-cell-death-in-drosophila-midgut
#14
Santosh K Dasari, Eyal Schejter, Shani Bialik, Aya Shkedy, Vered Levin-Salomon, Smadar Levin-Zaidman, Adi Kimchi
Autophagy is critical for homeostasis and cell survival during stress, but can also lead to cell death, a little understood process that has been shown to contribute to developmental cell death in lower model organisms, and to human cancer cell death. We recently reported (1) on our thorough molecular and morphologic characterization of an autophagic cell death system involving resveratrol treatment of lung carcinoma cells. To gain mechanistic insight into this death program, we performed a signalome-wide RNAi screen for genes whose functions are necessary for resveratrol-induced death...
September 21, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28933280/prevalence-of-hiv-seropositivity-and-associated-impact-on-mortality-among-injured-patients-from-low-and-middle-income-countries-a-systematic-review-and-meta-analysis
#15
Adam R Aluisio, Soham Rege, Barclay T Stewart, John Kinuthia, Adam C Levine, Michael J Mello, Carey Farquhar
BACKGROUND: Although HIV and injury contribute substantially to disease burdens in low-and middle-income countries (LMIC), their intersection is poorly characterized. OBJECTIVE: This systematic review assessed the prevalence and associated mortality impact of HIV-seropositivity among injured patients in LMIC. METHODS: A systematic search of PubMed, EMBASE, Global Health, CINAHL, POPLINE and Cochrane databases through August 2016 was performed...
September 19, 2017: Current HIV Research
https://www.readbyqxmd.com/read/28933271/targeting-cell-necroptosis-and-apoptosis-induced-by-shikonin-via-receptor-interacting-protein-kinases-in-estrogen-receptor-positive-breast-cancer-cell-line-mcf-7
#16
Zahra Shahsavari, Fatemeh Karami-Tehrani, Siamak Salami
Recognition of a new therapeutic agent may activate an alternative programmed cell death for the treatment of breast cancer. Here, it has been tried to evaluate the effects of Shikonin, a naphthoquinone derivative of Lithospermum erythrorhizon, on the induction of necroptosis and apoptosis mediated by RIPK1-RIPK3 in the ER+ breast cancer cell line, MCF-7. In the current study, cell death modalities, cell cycle patterns, RIPK1 and RIPK3 expressions, caspase-3 and caspase-8 activities, reactive oxygen species and mitochondrial membrane potential have been evaluated in the Shikonin-treated MCF-7 cells...
September 19, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28932565/unique-distribution-of-programmed-death-ligand-1-pd-l1-expression-in-east-asian-non-small-cell-lung-cancer
#17
Yunjian Pan, Difan Zheng, Yuan Li, Xu Cai, Zongli Zheng, Yan Jin, Haichuan Hu, Chao Cheng, Lei Shen, Jian Wang, Hongbin Ji, Yihua Sun, Xiaoyan Zhou, Haiquan Chen
BACKGROUND: To determine the proportion and clinical features of programmed death ligand 1 (PD-L1) expression in East Asian non-small cell lung cancer (NSCLC). METHODS: PD-L1 expression was assessed by immunohistochemistry (IHC) and tumor proportion score (TPS) with the use of PD-L1 IHC 22C3 antibody (Dako North America) in 108 surgically resected lung squamous cell carcinomas (SCC) and 221 lung adenocarcinomas (LUADs), and was correlated with clinical variables, histologic subtypes, and common driver mutations...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28932563/a-systematic-and-genome-wide-correlation-meta-analysis-of-pd-l1-expression-and-targetable-nsclc-driver-genes
#18
Jin Li, Yaoqi Chen, Xiaoshun Shi, Xiaobing Le, Fenglan Feng, Jingyi Chen, Chengzhi Zhou, Yusong Chen, Shuai Wen, Haikang Zeng, Allen M Chen, Yu Zhang
BACKGROUND: Studies have shown that the ligand of programmed cell death protein 1 (B7-H1, CD274 or PD-L1) is related to lung cancer driver genes. Although studies have examined the association between lung cancer driver gene mutations or expression and PD-L1 expression, the present studies have not been mined the correlation systematically and genome-widely. METHODS: All relevant published PD-L1 articles with driver genes data and the RNA-seq dataset from The Cancer Genome Atlas (TCGA) were analyzed...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28931759/combination-immunotherapy-with-tlr-agonists-and-checkpoint-inhibitors-suppresses-head-and-neck-cancer
#19
Fumi Sato-Kaneko, Shiyin Yao, Alast Ahmadi, Shannon S Zhang, Tadashi Hosoya, Megan M Kaneda, Judith A Varner, Minya Pu, Karen S Messer, Cristiana Guiducci, Robert L Coffman, Kazutaka Kitaura, Takaji Matsutani, Ryuji Suzuki, Dennis A Carson, Tomoko Hayashi, Ezra Ew Cohen
Checkpoint inhibitors have demonstrated efficacy in patients with recurrent or metastatic head and neck squamous cell carcinoma (HNSCC). However, the majority of patients do not benefit from these agents. To improve the efficacy of checkpoint inhibitors, intratumoral (i.t.) injection with innate immune activators, TLR7 and TLR9 agonists, were tested along with programmed death-1 receptor (PD-1) blockade. The combination therapy suppressed tumor growth at the primary injected and distant sites in human papillomavirus-negative (HPV-negative) SCC7 and MOC1, and HPV-positive MEER syngeneic mouse models...
September 21, 2017: JCI Insight
https://www.readbyqxmd.com/read/28931379/the-effects-of-a-rise-in-cigarette-price-on-cigarette-consumption-tobacco-taxation-revenues-and-of-smoking-related-deaths-in-28-eu-countries-applying-threshold-regression-modelling
#20
Chun-Yuan Yeh, Christian Schafferer, Jie-Min Lee, Li-Ming Ho, Chi-Jung Hsieh
BACKGROUND: European Union public healthcare expenditure on treating smoking and attributable diseases is estimated at over €25bn annually. The reduction of tobacco consumption has thus become one of the major social policies of the EU. This study investigates the effects of price hikes on cigarette consumption, tobacco tax revenues and smoking-caused deaths in 28 EU countries. METHODS: Employing panel data for the years 2005 to 2014 from Euromonitor International, the World Bank and the World Health Organization, we used income as a threshold variable and applied threshold regression modelling to estimate the elasticity of cigarette prices and to simulate the effect of price fluctuations...
September 21, 2017: BMC Public Health
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