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https://www.readbyqxmd.com/read/28938572/osthole-inhibits-bone-metastasis-of-breast-cancer
#1
Chunyu Wu, Zhenping Sun, Baofeng Guo, Yiyi Ye, Xianghui Han, Yuenong Qin, Sheng Liu
Bone is one of the most common sites for breast cancer metastasis, which greatly contributes to patient morbidity and mortality. Osthole, a major extract from Cnidium monnieri (L.), exhibits many biological and pharmacological activities, however, its potential as a therapeutic agent in the treatment of breast cancer bone metastases remain poorly understood. In this study, we set out to investigate whether osthole could inhibit breast cancer metastasis to bone in mice and clarified the potential mechanism of this inhibition...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938541/differential-expression-of-circulating-biomarkers-of-tumor-phenotype-and-outcomes-in-previously-treated-non-small-cell-lung-cancer-patients-receiving-erlotinib-vs-cytotoxic-chemotherapy
#2
Mary Jo Fidler, Casey Frankenberger, Richard Seto, Gabriela C Lobato, Cristina L Fhied, Selina Sayidine, Sanjib Basu, Mark Pool, Reem Karmali, Marta Batus, Wen-Rong Lie, David Hayes, Jehangir Mistry, Philip Bonomi, Jeffrey A Borgia
BACKGROUND: The objective of this study was to identify serum biomarkers capable of predicting clinical outcomes in previously-treated NSCLC patients with wild-type for EGFR activating mutations or insufficient tissue for mutation status determination. METHODS: Sixty-six Luminex immunoassays representative of biological themes that emerged from a re-analysis of transcriptome data from the Cancer Genome Atlas (TCGA) were evaluate against pretreatment serum specimens from previously-treated advanced NSCLC patients received either cytotoxic chemotherapy (n=32) or erlotinib (n=79)...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938090/small-molecule-targets-in-immuno-oncology
#3
REVIEW
Dashyant Dhanak, James P Edwards, Ancho Nguyen, Peter J Tummino
Advances in understanding the role and molecular mechanisms underlying immune surveillance and control of (pre)malignancies is revolutionizing clinical practice in the treatment of cancer. Presently, multiple biologic drugs targeting the immune checkpoint proteins PD(L)1 or CTLA4 have been approved and/or are in advanced stages of clinical development for many cancers. In addition, combination therapy with these agents and other immunomodulators is being intensively explored with the aim of improving primary response rates or prolonging overall survival...
September 21, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28938082/pseudacteon-phorid-flies-host-specificity-and-impacts-on-solenopsis-fire-ants
#4
Li Chen, Henry Y Fadamiro
Human commerce has resulted in the spread of the imported fire ants, Solenopsis species, worldwide. Six species of parasitic Pseudacteon phorid flies that are highly host specific to the Solenopsis saevissima complex of Solenopsis fire ants have been successfully released in the southern United States. The presence of Pseudacteon phorid flies, in addition to having direct mortality effects on their host ants, modifies foraging behavior and disrupts interspecific competition between host species and other ant species in the community...
September 22, 2017: Annual Review of Entomology
https://www.readbyqxmd.com/read/28937692/bdnf-at-the-synapse-why-location-matters
#5
M Song, K Martinowich, F S Lee
Neurotrophic factors, a family of secreted proteins that support the growth, survival and differentiation of neurons, have been intensively studied for decades due to the powerful and diverse effects on neuronal physiology, as well as their therapeutic potential. Such efforts have led to a detailed understanding on the molecular mechanisms of neurotrophic factor signaling. One member, brain-derived neurotrophic factor (BDNF) has drawn much attention due to its pleiotropic roles in the central nervous system and implications in various brain disorders...
October 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28937503/patient-burden-of-axial-spondyloarthritis
#6
Vibeke Strand, Jasvinder A Singh
Axial spondyloarthritis (AxSpA) is an inflammatory spondyloarthritis (SpA) that has significant impact on a patient's life. Symptoms, including fatigue, sleep problems, depression, and sexual dysfunction, can profoundly impact health-related quality of life (HRQoL) and limit work, leisure, and daily activities. Available therapies effectively manage pain and inflammation in early-stage disease, but patients often continue to experience impaired HRQoL. Thus, there remains a need for new therapies with novel mechanisms that can stop disease progression, potentially reverse damage caused by AxSpA and improve HRQoL in patients with AxSpA...
September 21, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28937474/patient-burden-of-axial-spondyloarthritis
#7
Vibeke Strand, Jasvinder A Singh
Axial spondyloarthritis (AxSpA) is an inflammatory spondyloarthritis (SpA) that has significant impact on a patient's life. Symptoms, including fatigue, sleep problems, depression, and sexual dysfunction, can profoundly impact health-related quality of life (HRQoL) and limit work, leisure, and daily activities. Available therapies effectively manage pain and inflammation in early-stage disease, but patients often continue to experience impaired HRQoL. Thus, there remains a need for new therapies with novel mechanisms that can stop disease progression, potentially reverse damage caused by AxSpA and improve HRQoL in patients with AxSpA...
October 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28936716/induction-of-reactive-oxygen-species-an-emerging-approach-for-cancer-therapy
#8
REVIEW
Zhengzhi Zou, Haocai Chang, Haolong Li, Songmao Wang
Reactive oxygen species (ROS), a group of ions and molecules, include hydroxyl radicals (·OH), alkoxyl radicals, superoxide anion (O2·-), singlet oxygen ((1)O2) and hydrogen peroxide (H2O2). Hydroxyl radicals and alkoxyl radicals are extremely and highly reactive species respectively. Endogenous ROS are mainly formed in mitochondrial respiratory chain. Low levels of ROS play important roles in regulating biological functions in mammalian cells. However, excess production of ROS can induce cell death by oxidative damaging effects to intracellular biomacromolecules...
September 21, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28936201/trichoderma-asperelloides-spores-downregulate-dectin1-2-and-tlr2-receptors-of-mice-macrophages-and-decrease-candida-parapsilosis-phagocytosis-independent-of-the-m1-m2-polarization
#9
Andréa G Dos Santos, Érica A Mendes, Rafael P de Oliveira, Ana M C Faria, Aurizangela O de Sousa, Carlos P Pirovani, Fernanda F de Araújo, Andréa T de Carvalho, Marliete Carvalho Costa, Daniel Assis Santos, Quimi V Montoya, Andre Rodrigues, Jane L Dos Santos
The intensive use of pesticides to control pests in agriculture has promoted several issues relating to environment. As chemical pesticides remain controversial, biocontrol agents originating from fungi could be an alternative. Among them, we highlight biocontrol agents derived from the fungi genus Trichoderma, which have been documented in limiting the growth of other phytopathogenic fungus in the roots and leaves of several plant species. An important member of this genus is Trichoderma asperelloides, whose biocontrol agents have been used to promote plant growth while also treating soil diseases caused by microorganisms in both greenhouses and outdoor crops...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28936154/potential-role-of-amino-acids-in-pathogenesis-of-schizophrenia
#10
REVIEW
Shamaila Saleem, Faiza Shaukat, Anjuman Gul, Mahwish Arooj, Arif Malik
Schizophrenia is a syndrome of inconclusive etiopathogenesis with a prevalence of about 1% in general population. Underlying factors include genetic predisposition and defected neurodevelopment in early stages of life. The role of amino acids has been indicated in some reports. However, very few workers have detailed the effect of each amino acid in the pathophysiology of schizophrenia. Thus, in the present review, we aimed to provide an insight into the potential role of amino acids levels during schizophrenia...
July 2017: International Journal of Health Sciences
https://www.readbyqxmd.com/read/28935957/modulation-of-cyclic-nucleotide-mediated-cellular-signaling-and-gene-expression-using-photoactivated-adenylyl-cyclase-as-an-optogenetic-tool
#11
Meenakshi Tanwar, Lohit Khera, Nemneineng Haokip, Rajeev Kaul, Aruna Naorem, Suneel Kateriya
Cyclic nucleotide signaling pathway plays a significant role in various biological processes such as cell growth, transcription, inflammation, in microbial pathogenesis, etc. Modulation of cyclic nucleotide levels by optogenetic tools has overcome certain limitations of studying transduction cascade by pharmacological agents and has allowed several ways to modulate biological processes in a spatiotemporal manner. Here, we have shown the optogenetic modulation of the cyclooxygenase 2 (Cox-2) gene expression and their downstream effector molecule (PGE2) in HEK-293T cells and the development process of Dictyostelium discoideum via modulating the cyclic nucleotide (cAMP) signaling pathway utilizing photoactivated adenylyl cyclases (PACs) as an optogenetic tool...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935121/treatment-of-acute-ocular-chemical-burns
#12
REVIEW
Namrata Sharma, Manpreet Kaur, Tushar Agarwal, Virender S Sangwan, Rasik B Vajpayee
Ocular chemical burns are an ophthalmic emergency and are responsible for 11.5% to 22.1% of ocular injuries. Immediate copious irrigation is universally recommended in acute ocular burns to remove the offending agent and minimize damage. Conventional medical therapy consists of the use of agents that promote epithelialization, minimize inflammation, and prevent cicatricial complications. Biological fluids such as autologous serum, umbilical cord blood serum, platelet-rich plasma, and amniotic membrane suspension are a rich source of growth factors and promote healing when used as adjuncts to conventional therapy...
September 18, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28934970/isolation-and-identification-of-xenorhabdus-and-photorhabdus-bacteria-associated-with-entomopathogenic-nematodes-and-their-larvicidal-activity-against-aedes-aegypti
#13
Chamaiporn Fukruksa, Thatcha Yimthin, Manawat Suwannaroj, Paramaporn Muangpat, Sarunporn Tandhavanant, Aunchalee Thanwisai, Apichat Vitta
BACKGROUND: Aedes aegypti is a potential vector of West Nile, Japanese encephalitis, chikungunya, dengue and Zika viruses. Alternative control measurements of the vector are needed to overcome the problems of environmental contamination and chemical resistance. Xenorhabdus and Photorhabdus are symbionts in the intestine of entomopathogenic nematodes (EPNs) Steinernema spp. and Heterorhabditis spp. These bacteria are able to produce a broad range of bioactive compounds including antimicrobial, antiparasitic, cytotoxic and insecticidal compounds...
September 21, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28934692/identification-of-key-genes-and-pathways-and-therapeutic-agents-in-cadmium-treated-liver-cells-a-bioinformatics-study
#14
Liang Zhang, Yi Huang, Zhen Yu, Mengmeng Shao, Yunbo Luo, Yi Zhu
Evidence indicates that Cadmium (Cd) can accumulate in liver, which results in acute or chronic cell damage with unclear complex mechanisms. Thus, we aimed to explore the possible molecules and pathways by using bioinformatics methods Consequently, two datasets (GSE8865 and GSE31286) were retrieved and the differentially expressed genes (DEGs) were screened out. The intersection of the DEGs included seven up-regulated and forty-three down-regulated genes, which were mainly enriched in biological cell proliferation items, and were enriched in several metabolism-related pathways...
September 14, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28934297/molecular-and-biological-characterization-of-%C3%AF-rs551-a-filamentous-bacteriophage-isolated-from-a-race-3-biovar-2-strain-of-ralstonia-solanacearum
#15
Abdelmonim Ali Ahmad, Michael J Stulberg, John Patrick Mershon, Dimitre S Mollov, Qi Huang
A filamentous bacteriophage, designated ϕRs551, was isolated and purified from the quarantine and select agent phytopathogen Ralstonia solanacearum race 3 biovar 2 strain UW551 (phylotype IIB sequevar 1) grown under normal culture conditions. Electron microscopy suggested that ϕRs551 is a member of the family Inoviridae, and is about 1200 nm long and 7 nm wide. ϕRs551 has a genome of 7929 nucleotides containing 14 open reading frames, and is the first isolated virion that contains a resolvase (ORF13) and putative type-2 phage repressor (ORF14)...
2017: PloS One
https://www.readbyqxmd.com/read/28934123/the-innate-and-adaptive-immune-system-as-targets-for-biologic-therapies-in-inflammatory-bowel-disease
#16
REVIEW
Grainne Holleran, Loris Lopetuso, Valentina Petito, Cristina Graziani, Gianluca Ianiro, Deirdre McNamara, Antonio Gasbarrini, Franco Scaldaferri
Inflammatory bowel disease (IBD) is an immune-mediated inflammatory condition causing inflammation of gastrointestinal and systemic cells, with an increasing prevalence worldwide. Many factors are known to trigger and maintain inflammation in IBD including the innate and adaptive immune systems, genetics, the gastrointestinal microbiome and several environmental factors. Our knowledge of the involvement of the immune system in the pathophysiology of IBD has advanced rapidly over the last two decades, leading to the development of several immune-targeted treatments with a biological source, known as biologic agents...
September 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28934120/angiogenesis-inhibitors-in-nsclc
#17
REVIEW
Anna Manzo, Agnese Montanino, Guido Carillio, Raffaele Costanzo, Claudia Sandomenico, Nicola Normanno, Maria Carmela Piccirillo, Gennaro Daniele, Francesco Perrone, Gaetano Rocco, Alessandro Morabito
Angiogenesis is a complex biological process that plays a relevant role in sustaining the microenvironment, growth, and metastatic potential of several tumors, including non-small cell lung cancer (NSCLC). Bevacizumab was the first angiogenesis inhibitor approved for the treatment of patients with advanced NSCLC in combination with chemotherapy; however, it was limited to patients with non-squamous histology and first-line setting. Approval was based on the results of two phase III trials (ECOG4599 and AVAIL) that demonstrated an improvement of about two months in progression-free survival (PFS) in both trials, and in the ECOG4599 trial, an improvement in overall survival (OS) also...
September 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28934023/biomarker-enrichment-considerations-in-oncology-early-development-single-arm-studies
#18
Hong Tian, Kevin Liu
Oncology drug development has been increasingly shaped by molecularly targeted agents (MTAs), which often demonstrate differential effectiveness driven by the biomarker expression levels on tumors. Innovative statistical designs have been proposed to tackle this challenge, e.g., Freidlin et al (2005), Jiang et al (2007) and Freidlin et al (2010). All of these are essentially adaptive confirmatory Phase 3 designs that combine the testing of treatment effectiveness in the overall population with an alternative pathway for a more restrictive efficacy claim in a sensitive subpopulation...
September 21, 2017: Journal of Biopharmaceutical Statistics
https://www.readbyqxmd.com/read/28933967/aid-biology-a-pathological-and-clinical-perspective
#19
Meenal Choudhary, Anubhav Tamrakar, Amit Kumar Singh, Monika Jain, Ankit Jaiswal, Prashant Kodgire
Activation-induced cytidine deaminase (AID), primarily expressed in activated mature B lymphocytes in germinal centers, is the key factor in adaptive immune response against foreign antigens. AID is responsible for producing high-affinity and high-specificity antibodies against an infectious agent, through the physiological DNA alteration processes of antibody genes by somatic hypermutation (SHM) and class-switch recombination (CSR) and functions by deaminating deoxycytidines (dC) to deoxyuridines (dU), thereby introducing point mutations and double-stranded chromosomal breaks (DSBs)...
September 21, 2017: International Reviews of Immunology
https://www.readbyqxmd.com/read/28933554/rational-targeting-of-cellular-cholesterol-in-diffuse-large-b-cell-lymphoma-dlbcl-enabled-by-functional-lipoprotein-nanoparticles-a-therapeutic-strategy-dependent-on-cell-of-origin
#20
Jonathan S Rink, Shuo Yang, Osman Cen, Tim Taxter, Kaylin M McMahon, Sol Misener, Amir Behdad, Richard Longnecker, Leo I Gordon, C Shad Thaxton
Cancer cells have altered metabolism and, in some cases, an increased demand for cholesterol. It is important to identify novel, rational treatments based on biology, and cellular cholesterol metabolism as a potential target for cancer is an innovative approach. Toward this end, we focused on diffuse large B-cell lymphoma (DLBCL) as a model because there is differential cholesterol biosynthesis driven by B-cell receptor (BCR) signaling in germinal center (GC) versus activated B-cell (ABC) DLBCL. To specifically target cellular cholesterol homeostasis, we employed high-density lipoprotein-like nanoparticles (HDL NP) that can generally reduce cellular cholesterol by targeting and blocking cholesterol uptake through the high-affinity HDL receptor, scavenger receptor type B-1 (SCARB1)...
September 21, 2017: Molecular Pharmaceutics
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