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https://www.readbyqxmd.com/read/28724188/bisindole-oxadiazole-hybrids-t3p-%C3%A2-mediated-synthesis-and-appraisal-of-their-apoptotic-antimetastatic-and-computational-bcl-2-binding-potential
#1
Pooja R Kamath, Manu M Joseph, Abdul Ajees Abdul Salam, Sreelekha T Therakathinal, Dhanya Sunil, Subhankar Biswas, Karkala Sreedhara Ranganath Pai
In the pursuit of novel anticancer leads, new bisindole-oxadiazoles were synthesized using propyl phosphonic anhydride as a mild and efficient reagent. The molecule, 3-[5-(1H-indol-3-ylmethyl)-1,3,4-oxadiazol-2-yl]-1H-indole (3a) exhibited selective cytotoxicity to MCF-7 cells with a cell cycle arrest in the G1 phase. The mechanism of cytotoxicity of 3a involved caspase-2-dependent apoptotic pathway with characteristic apoptotic morphological alterations as observed in acridine orange/ethidium bromide and Hoechst staining...
July 19, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28723576/an-atlas-of-human-regulatory-t-helper-like-cells-reveals-features-of-th2-like-tregs-that-support-a-tumorigenic-environment
#2
Leena Halim, Marco Romano, Reuben McGregor, Isabel Correa, Polychronis Pavlidis, Nathali Grageda, Sec-Julie Hoong, Muhammed Yuksel, Wayel Jassem, Rosalind F Hannen, Mark Ong, Olivia Mckinney, Bu'Hussain Hayee, Sophia N Karagiannis, Nicholas Powell, Robert I Lechler, Estefania Nova-Lamperti, Giovanna Lombardi
Regulatory T cells (Tregs) play a pivotal role in maintaining immunological tolerance, but they can also play a detrimental role by preventing antitumor responses. Here, we characterized T helper (Th)-like Treg subsets to further delineate their biological function and tissue distribution, focusing on their possible contribution to disease states. RNA sequencing and functional assays revealed that Th2-like Tregs displayed higher viability and autocrine interleukin-2 (IL-2)-mediated activation than other subsets...
July 18, 2017: Cell Reports
https://www.readbyqxmd.com/read/28722329/prevalence-of-salmonella-among-waterfowl-along-the-texas-gulf-coast
#3
M K Grigar, K J Cummings, S C Rankin
Migratory waterfowl may play a role in the ecology and transmission of zoonotic pathogens, given their ability to travel long distances and their use of varied habitats. Our objectives were to estimate the prevalence of Salmonella among waterfowl along the Texas Gulf coast and to characterize the isolates. Faecal samples were collected from hunter-harvested waterfowl at four wildlife management areas from September through November, 2016. Standard bacteriologic culture methods were used to isolate Salmonella from samples, and isolates were characterized by serotyping and anti-microbial susceptibility testing...
July 19, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28722233/cooperative-interaction-of-hepatocyte-growth-factor-and-neuregulin-regulates-schwann-cell-migration-and-proliferation-through-grb2-associated-binder-2-in-peripheral-nerve-repair
#4
Yoon Kyoung Shin, So Young Jang, Seoug Hoon Yun, Yun Young Choi, Byeol-A Yoon, Young Rae Jo, So Young Park, Min Gyoung Pak, Joo In Park, Hwan Tae Park
The sequential reactive changes in Schwann cell phenotypes in transected peripheral nerves, including dedifferentiation, proliferation and migration, are essential for nerve repair. Even though the injury-induced migratory and proliferative behaviors of Schwann cells resemble epithelial and mesenchymal transition (EMT) in tumors, the molecular mechanisms underlying this phenotypic change of Schwann cells are still unclear. Here we show that the reactive Schwann cells exhibit migratory features dependent on the expression of a scaffolding oncoprotein Grb2-associated binder-2 (Gab2), which was transcriptionally induced by neuregulin 1-ErbB2 signaling following nerve injury...
July 19, 2017: Glia
https://www.readbyqxmd.com/read/28721002/mobile-schwannomas-of-lumbar-spine-a-diagnostic-dilemma
#5
Ajay Kothari, Navdeep Singh, Rashid Anjum
Mobile Schwannoma is a very rare entity and is reported sparsely in literature, with most of them occurring in lumbar spine region. We present a case of seventy-year-old male patient who had pain in lower back radiating to ipsilateral thigh. A diagnosis of migratory tumour was made based on findings of plain and contrast MRI preoperatively. We did a two level laminectomy and tumour excision. In this report, we intend to discuss various likely causes of tumour migration and various diagnostic methods to tackle this surgical dilemma, we have also attempted to review the sparse literature available till date on migratory lumber schwannoma...
April 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28720390/epigenetic-regulation-of-epithelial-to-mesenchymal-transition-by-the-lysine-specific-demethylase-lsd1-kdm1a
#6
REVIEW
Susanna Ambrosio, Carmen D Saccà, Barbara Majello
The Lysine-specific demethylase 1, KDM1A/LSD1, plays a central role in the regulation of Pol II transcription through the removal of the activation mark (mono- and dimethyl lysine 4 of histone H3). LSD1 is often deregulated in human cancers, and it is frequently overexpressed in human solid cancers and leukemia. LSD1 regulates the epithelial mesenchymal transition (EMT) in epithelial cells, i.e., the ability to transition into mesenchymal cells, to lose homotypic adhesion and to acquire migratory capacity. From its initial discovery as a component of the Snail complex, multiple studies highlighted the causative role of LSD1 in cell invasiveness and EMT, describing its direct involvement in different molecular processes through the interaction with specific partners...
July 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28719590/pericyte-expressed-tie2-controls-angiogenesis-and-vessel-maturation
#7
Martin Teichert, Laura Milde, Annegret Holm, Laura Stanicek, Nicolas Gengenbacher, Soniya Savant, Tina Ruckdeschel, Zulfiyya Hasanov, Kshitij Srivastava, Junhao Hu, Stella Hertel, Arne Bartol, Katharina Schlereth, Hellmut G Augustin
The Tie receptors with their Angiopoietin ligands act as regulators of angiogenesis and vessel maturation. Tie2 exerts its functions through its supposed endothelial-specific expression. Yet, Tie2 is also expressed at lower levels by pericytes and it has not been unravelled through which mechanisms pericyte Angiopoietin/Tie signalling affects angiogenesis. Here we show that human and murine pericytes express functional Tie2 receptor. Silencing of Tie2 in pericytes results in a pro-migratory phenotype. Pericyte Tie2 controls sprouting angiogenesis in in vitro sprouting and in vivo spheroid assays...
July 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28717998/locust-displacing-winds-in-eastern-australia-reassessed-with-observations-from-an-insect-monitoring-radar
#8
Zhenhua Hao, V Alistair Drake, Leesa Sidhu, John R Taylor
Based on previous investigations, adult Australian plague locusts are believed to migrate on warm nights (with evening temperatures >25 °C), provided daytime flight is suppressed by surface winds greater than the locusts' flight speed, which has been shown to be 3.1 m s(-1). Moreover, adult locusts are believed to undertake briefer 'dispersal' flights on nights with evening temperature >20 °C. To reassess the utility of these conditions for forecasting locust flight, contingency tests were conducted comparing the nights selected on these bases (predicted nights) for the months of November, January, and March and the nights when locust migration were detected with an insect monitoring radar (actual nights) over a 7-year period...
July 17, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28716053/ibrutinib-a-bruton-s-tyrosine-kinase-inhibitor-exhibits-antitumoral-activity-and-induces-autophagy-in-glioblastoma
#9
Jin Wang, Xiaoyang Liu, Yongzhi Hong, Songtao Wang, Pin Chen, Aihua Gu, Xiaoyuan Guo, Peng Zhao
BACKGROUND: Glioblastoma (GBM) is the most common and aggressive primary brain tumor in adults. Ibrutinib, a Bruton's tyrosine kinase (BTK) inhibitor, is a novel anticancer drug used for treating several types of cancers. In this study, we aimed to determine the role of ibrutinib on GBM. METHODS: Cell proliferation was determined by using cell viability, colony formation, and 5-ethynyl-2'-deoxyuridine (EdU) assays. Cell cycle and cell apoptosis were analyzed by flow cytometry...
July 17, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28715868/microrna-150-attenuates-hypoxia-induced-excessive-proliferation-and-migration-of-pulmonary-arterial-smooth-muscle-cells-through-reducing-hif-1%C3%AE-expression
#10
Mantian Chen, Chengxing Shen, Yi Zhang, Hong Shu
Pulmonary arterial hypertension (PAH) is a progressive, fatal disease for which currently there is no curative therapy available. Pathologic changes in this disease involve excessive proliferation and migration of pulmonary artery smooth muscle cells (PASMCs). However, the underlying role of miR-150 in PASMCs remains elusive. Here in this study, miR-150 down-regulation was observed in hypoxia-treated PASMCs. Restoration of miR-150 attenuates hypoxia-treated PASMC proliferation and migration. Luciferase reporter assay showed that miR-150 directly regulated expression of HIF-1α...
July 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28714373/targeting-mir-21-decreases-expression-of-multi-drug-resistant-genes-and-promotes-chemosensitivity-of-renal-carcinoma
#11
Kelly Gaudelot, Jean-Baptiste Gibier, Nicolas Pottier, Brigitte Hémon, Isabelle Van Seuningen, François Glowacki, Xavier Leroy, Christelle Cauffiez, Viviane Gnemmi, Sébastien Aubert, Michaël Perrais
Renal cell carcinoma, the most common neoplasm of adult kidney, accounts for about 3% of adult malignancies and is usually highly resistant to conventional therapy. MicroRNAs are a class of small non-coding RNAs, which have been previously shown to promote malignant initiation and progression. In this study, we focused our attention on miR-21, a well described oncomiR commonly upregulated in cancer. Using a cohort of 99 primary renal cell carcinoma samples, we showed that miR-21 expression in cancer tissues was higher than in adjacent non-tumor tissues whereas no significant difference was observed with stages, grades, and metastatic outcome...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28714301/assessing-fukushima-derived-radiocesium-in-migratory-pacific-predators
#12
Daniel James Madigan, Zofia Baumann, Owyn E Snodgrass, Heidi Dewar, Michelle Berman-Kowalewski, Kevin C Weng, Jun Nishikawa, Peter H Dutton, Nicholas S Fisher
The 2011 release of Fukushima-derived radionuclides into the Pacific Ocean made migratory sharks, teleosts, and marine mammals a source of speculation and anxiety regarding radiocesium (134+137Cs) contamination, despite a lack of actual radiocesium measurements for these taxa. We measured radiocesium in a diverse suite of large predators from the North Pacific Ocean and report no detectable (i.e., ≥ 0.1 Bq kg-1 dry wt) of Fukushima-derived 134Cs in all samples, except in one olive ridley sea turtle (Lepidochelys olivacea) with trace levels (0...
July 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28713965/dihydroartemisinin-and-gefitinib-synergistically-inhibit-nsclc-cell-growth-and-promote-apoptosis-via-the-akt-mtor-stat3-pathway
#13
Hong Jin, Ai-Ying Jiang, Han Wang, Yong Cao, Yan Wu, Xiao-Feng Jiang
Non‑small cell lung cancer (NSCLC) is among the leading causes of cancer‑associated mortality worldwide. In clinical practice, therapeutic strategies based on drug combinations are often used for the treatment of various types of cancer. The present study aimed to investigate the effects of the combination of dihydroartemisinin (DHA) and gefitinib on NSCLC. Cell Counting kit 8 assay was used to evaluate cell viability. Transwell assays were performed to investigate cellular migration and invasion, and cellular apoptosis was evaluated using the terminal deoxynucleotidyl transferase dUTP nick‑end labeling assay...
July 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713938/effects-of-age-on-biological-and-functional-characterization-of-adipose%C3%A2-derived-stem-cells-from-patients-with-end%C3%A2-stage-liver-disease
#14
Yanyu Jin, Lei Yang, Yanyan Zhang, Wei Gao, Zhi Yao, Yang Song, Yuliang Wang
Adipose‑derived mesenchymal stromal cells (ADSCs) possess a multilineage potential and immunoregulatory properties, and may have great potential in autologous cell‑based technologies. The aim of the present study was to investigate how the age of patients with benign end‑stage liver disease affected the biological and functional characteristics of ADSCs, which is important for increasing the potential effectiveness of autologous cell therapy. ADSCs were obtained and cultured from three distinct age groups: Infant, adult and elderly...
July 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713917/stim1-silencing-inhibits-the-migration-and-invasion-of-a549-cells
#15
Yadong Wang, Haiyu Wang, Teng Pan, Li Li, Jiangmin Li, Haiyan Yang
The present study aimed to explore the effects of stromal interaction molecule 1 (STIM1) knockdown on the migration, invasion and metastasis of A549 cells in vitro and in vivo. Western blotting and immunohistochemistry were used to detect protein expression levels. Wound healing and Transwell invasion assays were used to assess the migratory and invasive abilities of A549 cells transfected with STIM1‑specific short hairpin (sh)RNA (shSTIM1). In addition, a tail vein metastatic assay was performed. The results demonstrated that the frequency of STIM1 high‑expression was significantly increased in metastatic lung cancer tissues (72...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713905/lactobacilli-inhibit-cervical-cancer-cell-migration-in-vitro-and-reduce-tumor-burden-in-vivo-through-upregulation-of-e-cadherin
#16
Xiaoxi Li, Hong Wang, Xingxing Du, Wenna Yu, Jingwen Jiang, Yanhong Geng, Xiaobing Guo, Xiuhua Fan, Cuiqing Ma
The present study was designed to investigate the antitumor effects of Lactobacillus and the potential mechanisms. Cell Counting Kit-8 (CCK-8) assays were carried out to determine suitable doses for investigating the inhibitory effect of lactobacilli on cell migration ability of HeLa and U14 cells in vitro. In addition, western blot assays were performed to investigate the possible mechanisms corresponding to its antitumor effects. Furthermore, a xenograft mouse model was established for investigating the E-cadherin expression in tumor tissues after treatment with lactobacilli...
July 5, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28710265/francisella-like-endosymbionts-and-rickettsia-species-in-local-and-imported-hyalomma-ticks
#17
Tal Azagi, Eyal Klement, Gidon Perlman, Yaniv Lustig, Kosta Y Mumcuoglu, Dmitry Apanaskevich, Yuval Gottlieb
Hyalomma ticks (Acari: Ixodidae) are hosts for Francisella like endosymbionts (FLE) and may serve as vectors of zoonotic disease agents. This study was aimed to provide initial characterization of the interaction between Hyalomma and FLE and to determine the prevalence of pathogenic Rickettsia in these ticks. Hyalomma marginatum, H. rufipes, H. dromedarii, H. aegyptium and H. excavatum ticks, identified morphologically and molecularly, were collected from different hosts and locations, representing the genus distribution in Israel, as well as from migratory birds...
July 14, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28710250/near-infrared-1064-nm-laser-modulates-migratory-dendritic-cells-to-augment-the-immune-response-to-intradermal-influenza-vaccine
#18
Kaitlyn Morse, Yoshifumi Kimizuka, Megan P K Chan, Mai Shibata, Yusuke Shimaoka, Shu Takeuchi, Benjamin Forbes, Christopher Nirschl, Binghao Li, Yang Zeng, Roderick T Bronson, Wataru Katagiri, Ayako Shigeta, Ruxandra F Sîrbulescu, Huabiao Chen, Rhea Y Y Tan, Kosuke Tsukada, Timothy Brauns, Jeffrey Gelfand, Ann Sluder, Joseph J Locascio, Mark C Poznansky, Niroshana Anandasabapathy, Satoshi Kashiwagi
Brief exposure of skin to near-infrared (NIR) laser light has been shown to augment the immune response to intradermal vaccination and thus act as an immunologic adjuvant. Although evidence indicates that the NIR laser adjuvant has the capacity to activate innate subsets including dendritic cells (DCs) in skin as conventional adjuvants do, the precise immunological mechanism by which the NIR laser adjuvant acts is largely unknown. In this study we sought to identify the cellular target of the NIR laser adjuvant by using an established mouse model of intradermal influenza vaccination and examining the alteration of responses resulting from genetic ablation of specific DC populations...
July 14, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28710195/marantic-endocarditis-and-paraneoplastic-pulmonary-embolism
#19
Tiago Lobo Ferreira, Rosa Alves, Tiago Judas, Maria F Delerue
Cancer is frequently associated with a hypercoagulable state. Almost 15% of patients with cancer will suffer a thromboembolic event during their clinical course. The aetiology of this hypercoagulable state is multifactorial and includes procoagulant factors associated with malignancy as well as the host's inflammatory response. Cancer-associated thrombophilia can present as venous thromboembolism, migratory superficial thrombophlebitis, arterial thrombosis, disseminated intravascular coagulation, thrombotic microangiopathy and rarely non-bacterial thrombotic endocarditis (NBTE)...
July 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28707808/cytotoxic-necrotizing-factor-1-promotes-prostate-cancer-progression-through-activating-the-cdc42-pak1-axis
#20
Yaxiu Guo, Zhisong Zhang, Huiting Wei, Jingyu Wang, Junqiang Lv, Kai Zhang, Evan T Keller, Zhi Yao, Quan Wang
Uropathogenic Escherichia coli (UPEC) is the leading cause of urinary tract infections and plays a role in prostatic carcinogenesis and prostate cancer (PCa) progression. However, the mechanisms through which UPEC promotes PCa development and progression are unclear. Cytotoxic necrotizing factor 1 (CNF1) is one of the most important UPEC toxins and its role in PCa progression has never been studied. We found that UPEC-secreted CNF1 promoted the migration and invasion of PCa cells and PCa metastasis. In vitro studies showed that CNF1 promotes pro-migratory and pro-invasive activity through entering PCa cells and activating Cdc42, which subsequently induced PAK1 phosphorylation and upregulation of MMP-9 expression...
July 14, 2017: Journal of Pathology
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