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https://www.readbyqxmd.com/read/29245069/aqueous-extract-of-triphala-inhibits-cancer-cell-proliferation-through-perturbation-of-microtubule-assembly-dynamics
#1
Sanith Cheriyamundath, Tejashree Mahaddalkar, Shreyada N Save, Sinjan Choudhary, Ramakrishna V Hosur, Manu Lopus
Triphala (Trl) is an ayurvedic formulation used for treating disorders of the digestive, respiratory, and nervous systems. Its anticancer properties have also been documented. We studied effects of Trl on tubulin, a target protein for several anticancer drugs, and systematically elucidated a possible antiproliferative mechanism of action of Trl. Trl inhibited proliferation of HeLa (cervical adenocarcinoma), PANC-1 (pancreatic adenocarcinoma), and MDA-MB-231 (triple-negative breast carcinoma) cells in microgram quantities and strongly suppressed the clonogenicity of HeLa cells...
December 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29245030/osmotin-a-plant-defense-tool-against-biotic-and-abiotic-stresses
#2
REVIEW
Hakim, Abid Ullah, Amjad Hussain, Muhammad Shaban, Aamir Hamid Khan, Muna Alariqi, Summia Gul, Zhang Jun, Sun Lin, Jianying Li, Shuangxia Jin, Muhammad Farooq Hussain Munis
Plants are prone to a number of pathogens and abiotic stresses that cause various disorders. However, plants possess a defense mechanism to cope with these stresses. The osmotin protein belongs to the PR-5 family of Pathogenesis-related (PR) proteins, which are produced in response to diseases caused by various biotic and abiotic stresses. Osmotin uses a signal transduction pathway to inhibit the activity of defensive cell wall barriers and increases its own cytotoxic efficiency. However, in response to cytotoxic effects, this pathway stimulates a mitogen-activated protein kinase (MAPK) cascade that triggers changes in the cell wall and enables osmotin's entrance into the plasma membrane...
December 7, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29243818/the-function-of-two-type-ii-metacaspases-in-woody-tissues-of-populus-trees
#3
Benjamin Bollhöner, Soile Jokipii-Lukkari, Joakim Bygdell, Simon Stael, Mathilda Adriasola, Luis Muñiz, Frank Van Breusegem, Inés Ezcurra, Gunnar Wingsle, Hannele Tuominen
Metacaspases (MCs) are cysteine proteases that are implicated in programmed cell death of plants. AtMC9 (Arabidopsis thaliana Metacaspase9) is a member of the Arabidopsis MC family that controls the rapid autolysis of the xylem vessel elements, but its downstream targets in xylem remain uncharacterized. PttMC13 and PttMC14 were identified as AtMC9 homologs in hybrid aspen (Populus tremula × tremuloides). A proteomic analysis was conducted in xylem tissues of transgenic hybrid aspen trees which carried either an overexpression or an RNA interference construct for PttMC13 and PttMC14...
December 15, 2017: New Phytologist
https://www.readbyqxmd.com/read/29243219/pd-1-blockade-enhances-the-anti-tumor-efficacy-of-gm-csf-surface-modified-bladder-cancer-stem-cells-vaccine
#4
Xiaojun Shi, Xinji Zhang, Jinlong Li, Lijun Mo, Hongfan Zhao, Yongtong Zhu, Zhiming Hu, Jimin Gao, Wanlong Tan
Eliminating cancer stem cells (CSCs) is a key issue in eradicating tumor. The streptavidin-granulocyte -macrophage colony stimulating factor (SA-GM-CSF) surface-modified bladder cancer stem cells vaccine previously developed using our protein-anchor technology could effectively induce specific immune response for eliminating CSCs. However, program death receptor-1 (PD-1)/program death ligand 1 (PD-L1) signaling in tumor microenvironment results in tumor adaptive immune resistance. Although the CSCs vaccine could increase the number of CD8+ T-cells, a part of these CD8+ T-cells expressed PD-1...
December 15, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29243166/a-hospital-and-home-based-exercise-program-to-address-functional-decline-in-people-following-allogeneic-stem-cell-transplantation
#5
S Abo, D Ritchie, L Denehy, Y Panek-Hudson, L Irving, C L Granger
PURPOSE: The aims of this study are to investigate the feasibility of an exercise program commencing 60 days following allogeneic stem cell transplantation (alloSCT), to investigate changes in physical function and health-related quality of life (HRQoL) in patients from pre- to post-alloSCT and to explore changes in patient outcomes before and after the program. METHODS: This study is a single site, prospective case series including 43 adults undergoing alloSCT...
December 14, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29243049/high-pd-l1-expression-indicates-poor-prognosis-of-hiv-infected-patients-with-non-small-cell-lung-cancer
#6
Yusuke Okuma, Tsunekazu Hishima, Jumpei Kashima, Sadamu Homma
BACKGROUND: The status of antitumor immunity represented by the expression of programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) and immune cell (IC) infiltration is unknown in HIV-infected patients with non-small cell lung cancer (NSCLC). METHODS: Fifteen HIV-infected patients with NSCLC were compared with 29 non-HIV-infected patients with NSCLC. Analysis of 13 propensity-score-matched patients in the two groups was also compared. The expression of PD-1/PD-L1 and tumor infiltration by CD4+, CD8+, and CD56+ immune cells were examined by immunohistochemistry; score of ≥ 2 was defined as positive...
December 14, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29242632/quantitative-assessment-of-cell-fate-decision-between-autophagy-and-apoptosis
#7
Bing Liu, Zoltán N Oltvai, Hülya Bayır, Gary A Silverman, Stephen C Pak, David H Perlmutter, Ivet Bahar
Autophagy and apoptosis are cellular processes that regulate cell survival and death, the former by eliminating dysfunctional components in the cell, the latter by programmed cell death. Stress signals can induce either process, and it is unclear how cells 'assess' cellular damage and make a 'life' or 'death' decision upon activating autophagy or apoptosis. A computational model of coupled apoptosis and autophagy is built here to analyze the underlying signaling and regulatory network dynamics. The model explains the experimentally observed differential deployment of autophagy and apoptosis in response to various stress signals...
December 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29242279/molecular-biomarkers-of-primary-and-acquired-resistance-to-t-cell-mediated-immunotherapy-in-cancer-landscape-clinical-implications-and-future-directions
#8
REVIEW
Young Kwang Chae, Michael S Oh, Francis J Giles
The emergence of immunotherapy has revolutionized cancer treatment in recent years. Inhibitors of immune checkpoints, including antibodies against cytotoxic T-lymphocyte-associated protein 4, programmed cell death protein 1, and programmed death ligand 1, have demonstrated notable efficacy in certain advanced cancers. Unfortunately, many patients do not benefit from these therapies and either exhibit primary resistance to treatment or develop acquired mechanisms of resistance after initially responding to therapy...
December 14, 2017: Oncologist
https://www.readbyqxmd.com/read/29241410/co-relation-of-overall-survival-with-peripheral-blood-based-inflammatory-biomarkers-in-advanced-stage-non-small-cell-lung-cancer-treated-with-anti-programmed-cell-death-1-therapy-results-from-a-single-institutional-database
#9
Abdul Rafeh Naqash, Chipman Robert Geoffrey Stroud, Muhammad Umer Butt, Grace K Dy, Aparna Hegde, Mahvish Muzaffar, Li V Yang, Maida Hafiz, Cynthia R Cherry, Paul R Walker
No abstract text is available yet for this article.
December 15, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29241069/mir-208a-3p-aggravates-autophagy-through-the-pdcd4-atg5-pathway-in-ang-ii-induced-h9c2-cardiomyoblasts
#10
Li Wang, Nan Ye, Xiaoyu Lian, Fei Peng, Hexi Zhang, Hui Gong
Pathological cardiac hypertrophy is the main determinant of the development of heart failure, for which there is often no effective therapy. The dysregulation of autophagy is implicated in hypertrophy, but the mechanism linking these processes is unclear. In this study, we characterized the regulatory role of miR-208a-3p in autophagy in H9c2 cardiomyoblasts induced by Angiotensin II (Ang II). We found that miR-208a-3p was up-regulated in Ang II-induced H9c2 cardiomyoblasts and in starvation-induced autophagy...
December 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29240037/fetal-anemia-causing-hydrops-fetalis-from-an-alpha-globin-variant-homozygous-hemoglobin-constant-spring
#11
Patcharee Komvilaisak, Ratana Komvilaisak, Arunee Jetsrisuparb, Surapon Wiangnon, Junya Jirapradittha, Pakaphan Kiatchoosakun, Goonapa Fucharoen
BACKGROUND: Fetal anemia is often assumed to be due to red cell alloimmunization and Parvovirus infection, and can lead to hydrops fetalis and death in utero. Other causes, such as mutations of hemoglobin alpha, are less commonly considered. METHODS: We report 7 cases with fetal anemia causing hydrops fetalis. Serial Doppler ultrasound for measurement peak systolic velocity (PSV) of middle cerebral artery (MCA) was used for evaluation of fetal anemia. Fetal anemia is suggested if the MCA/PSV ratio is >1...
December 12, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29239690/antibody-drug-conjugates-design-and-development-for-therapy-and-imaging-in-and-beyond-cancer-labex-mabimprove-industrial-workshop-july-27-28-2017-tours-france
#12
Camille Martin, Claire Kizlik-Masson, André Pèlegrin, Hervé Watier, Marie-Claude Viaud-Massuard, Nicolas Joubert
The annual "Antibody Industrial Symposium", co organized by LabEx MAbImprove, MabDesign and Polepharma, was held in Tours, France on June 27-28, 2017. The focus was on antibody-drug-conjugates (ADCs), new entities which realize the hope of Paul Ehrlich's magic bullet. ADCs result from the bioconjugation of a highly cytotoxic drug to a selective monoclonal antibody, which acts as a vector. Building on knowledge gained during the development of three approved ADCs, brentuximab vedotin (Adcetris®), ado trastuzumab emtansine (Kadcyla®) and inotuzumab ozogamicin (Besponsa®), and the many ADCs in development, this meeting addressed strategies and the latest innovations in the field from fundamental research to manufacturing...
December 14, 2017: MAbs
https://www.readbyqxmd.com/read/29238701/a-novel-heat-shock-element-hse-in-entamoeba-histolytica-that-regulates-the-transcriptional-activation-of-the-ehpgp5-gene-in-the-presence-of-emetine-drug
#13
Alma Nieto, David G Pérez Ishiwara, Esther Orozco, Virginia Sánchez Monroy, Consuelo Gómez García
Transcriptional regulation of the multidrug resistance EhPgp5 gene in Entamoeba histolytica is induced by emetine stress. EhPgp5 overexpression alters the chloride-dependent currents that cause trophozoite swelling, diminishing induced programmed cell death (PCD) susceptibility. In contrast, antisense inhibition of P-glycoprotein (PGP) expression produces synchronous death of trophozoites and the enhancement of the biochemical and morphological characteristics of PCD induced by G418. Transcriptional gene regulation analysis identified a 59 bp region at position -170 to -111 bp promoter as putative emetine response elements (EREs)...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29238224/prognostic-value-of-cox-2-and-pd-l1-expression-and-its-relationship-with-tumor-infiltrating-lymphocytes-in-resected-lung-adenocarcinoma
#14
Katsuhiko Shimizu, Riki Okita, Shinsuke Saisho, Ai Maeda, Yuji Nojima, Masao Nakata
Programmed cell death-1 ligand 1 (PD-L1), tumor-infiltrating CD8-positive T lymphocytes (CD8-positive TILs), and cyclooxygenase-2 (Cox-2) have been used as prognostic tools in patients with lung adenocarcinoma. We conducted a retrospective review of data from 170 patients who had undergone pulmonary resection as an initial treatment for clinical T1-2 N0 lung adenocarcinoma. We then investigated the expressions of three biomarkers using immunohistochemical analyses and compared the expression levels with the clinicopathological characteristics and outcomes of the patients...
2017: Cancer Management and Research
https://www.readbyqxmd.com/read/29238207/advances-in-t-cell-checkpoint-immunotherapy-for-head-and-neck-squamous-cell-carcinoma
#15
REVIEW
Xinmeng Qi, Bo Jia, Xue Zhao, Dan Yu
Head and neck squamous cell carcinoma (HNSCC) has been found to be a complex group of malignancies characterized by their profound immunosuppression and high aggressiveness. In most cases of advanced HNSCC, treatment fails to obtain total cancer cure. Efforts are needed to develop new therapeutic approaches to improve HNSCC outcomes. In this light, T-cells "immune checkpoint" has attracted much attention in cancer immunotherapy. It has been broadly accepted that inhibitory T-cell immune checkpoints contribute to tumor immune escape through negative immune regulatory signals (cytotoxic T-lymphocyte-associated antigen 4 [CTLA-4], programmed cell death 1 [PD-1], B7-H3, and B7-H4, etc)...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29238045/ripk3-promotes-adenovirus-type-5-activity
#16
Melanie Weigert, Alex Binks, Suzanne Dowson, Elaine Y L Leung, Dmitris Athineos, Xinzi Yu, Margaret Mullin, Josephine B Walton, Clare Orange, Darren Ennis, Karen Blyth, Stephen W G Tait, Iain A McNeish
Oncolytic adenoviral mutants infect human malignant cells and replicate selectively within them. This induces direct cytotoxicity that can also trigger profound innate and adaptive immune responses. However, the mechanism by which adenoviruses produce cell death remains uncertain. We previously suggested that type 5 adenoviruses, including the E1A CR2 deletion mutant dl922-947, might induce a novel form of programmed death resembling necroptosis. Here we have investigated the roles of core necrosis proteins RIPK1, RIPK3 and MLKL in the cytotoxicity of dl922-947 and other adenovirus serotypes...
December 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29238035/long-non-coding-rna-meg3-functions-as-a-competing-endogenous-rna-to-regulate-ischemic-neuronal-death-by-targeting-mir-21-pdcd4-signaling-pathway
#17
Honglin Yan, Jie Rao, Jingping Yuan, Likun Gao, Wenxian Huang, Lina Zhao, Jiacai Ren
Long non-coding RNA (lncRNA) maternally expressed gene 3 (MEG3) has been demonstrated as an important regulator in diverse human cancers. However, its function and regulatory mechanism in ischemic stroke remains largely unknown. Here, we report that MEG3 is physically associated with microRNA-21 (miR-21), while miR-21 is downregulated following ischemia in the ischemic core in vitro and in vivo, which is opposite to MEG3. Besides, overexpression of miR-21 protects oxygen-glucose deprivation and reoxygenation (OGD/R)-induced apoptotic cell death...
December 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29236891/high-expression-of-xiap-and-bcl-2-may-inhibit-programmed-cell-death-in-glioblastomas
#18
Daniela Pretti da Cunha Tirapelli, Isis Lacrose Lustosa, Sarah Bomfim Menezes, Indira Maynart Franco, Andressa Romualdo Rodrigues, Fernanda Maris Peria, Alexandre Magno da Nóbrega Marinho, Luciano Neder Serafini, Carlos Gilberto Carlotti, Luís Fernando Tirapelli
Glioblastoma (GBM) is the most malignant glioma and represents 29% of all brain tumors. Tumorigenesis is intimately connected with characteristics acquired in the physiologic pathway of cellular death. OBJECTIVE: In the present study, the expression of anti-apoptotic (XIAP and Bcl-2) and apoptotic (cytochrome C, caspase 9, APAF-1), caspase 3 and the Smac/DIABLO genes related to the apoptosis pathway were evaluated in 30 samples of glioblastoma. METHODS: The gene expression was evaluated in 30 glioblastomas (WHO grade IV) and compared to 10 white matter control samples with real-time PCR...
December 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29236302/recovery-of-hepatitis-c-specific-t-cell-responses-after-rituximab-therapy-in-hepatitis-c-mixed-cryoglobulinemic-vasculitis
#19
Poonam Mathur, Benjamin Emmanuel, Michael Sneller, Xiaozhen Zhang, Bhawna Poonia, Shyamasundaran Kottilil
BACKGROUND & AIMS: Mixed cryoglobulinemic vasculitis is associated with monoclonal B cell expansion in patients with chronic hepatitis C (HCV) infection. B cell depletion therapy using rituximab, a CD20 monoclonal antibody, has been successful in achieving remission from symptomatic disease. This study investigated whether B cell depletion therapy has an impact on activation of HCV-specific T cell phenotype and function. METHODS: Nineteen patients with Hepatitis C mixed cryoglobulinemic vasculitis were treated with 4 cycles of rituximab (375mg/m2 ) and variables were measured 6 months after therapy...
December 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29234486/jnk-signaling-a-multiplexing-hub-in-programmed-cell-death
#20
REVIEW
Danny N Dhanasekaran, E Premkumar Reddy
Jun N-terminal kinases or JNKs have been shown to be involved in a wide array of signaling events underlying tumorigenesis and tumor progression. Through its interaction with a diverse set of signaling proteins and adaptors, JNKs regulate cell proliferation, invasive migration, therapy resistance, and programmed cell death. JNKs have been shown to play a role in apoptotic as well as non-apoptotic programmed cell death mechanisms including those of necroptosis, ferroptosis, pyroptosis, and autophagy. Most of the tumorigenic regulatory functions of JNKs can be related to their ability to module cell death via these programmed cell death mechanisms...
September 2017: Genes & Cancer
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