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https://www.readbyqxmd.com/read/28938600/application-of-dual-targeting-drug-delivery-system-for-the-improvement-of-anti-glioma-efficacy-of-doxorubicin
#1
Zhenliang Sun, Xuebing Yan, YiBo Liu, Linsheng Huang, Cheng Kong, Xiao Qu, Man Wang, Renyuan Gao, Huanlong Qin
Chemotherapy of glioma is always hampered by the unsatisfactory tumor accumulation of drugs, of which the most noticeable obstacle is the limited drug permeability from vessels into tumor inner. In the present study, we developed a novel nanocarrier for the delivery of doxorubicin to brain tumor. Such novel drug delivery system was mainly composed of a tumor homing peptide and DOX-loaded PLA nanoparticles (AP1-NP-DOX). CRKRLDRNC peptide, named as AP1, was a newly glioma affinity peptide which could specifically binds to interleukin-4 receptor (IL-4R), highly expressing on both glioma cells and angiogenesis...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28931675/comparative-transcriptomics-highlights-the-role-of-the-ap1-transcription-factor-in-the-host-response-to-ebolavirus
#2
James W Wynne, Shawn Todd, Victoria Boyd, Mary Tachedjian, Reuben Klein, Brian Shiell, Megan Dearnley, Alexander J McAuley, Amanda P Woon, Anthony W Purcell, Glenn A Marsh, Michelle L Baker
Ebolavirus and Marburgvirus comprise two genera of negative-sense single-stranded RNA viruses that cause severe hemorrhagic fevers in humans. Despite considerable research efforts, the molecular events following Ebola virus (EBOV) infection are poorly understood. With the view of identifying host factors that underpin EBOV pathogenesis, we compared the transcriptomes of EBOV-infected human, pig and bat kidney cells using an RNAseq approach. Despite a significant difference in viral transcription/replication between the cell lines, all cells responded to EBOV infection through a robust induction of extracellular growth factors...
September 20, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28882791/effects-of-organic-acids-and-essential-oils-blend-on-growth-gut-microbiota-immune-response-and-disease-resistance-of-pacific-white-shrimp-litopenaeus-vannamei-against-vibrio-parahaemolyticus
#3
Wangquan He, Samad Rahimnejad, Ling Wang, Kai Song, Kangle Lu, Chunxiao Zhang
An 8-week feeding trial was undertaken to evaluate supplemental effects of AviPlus(®) (AP), a blend of organic acids [citric acid, 25%; sorbic acid, 16.7%] and essential oils [thymol, 1.7%; vanillin, 1.0%], on growth, gut microbiota, innate immunity and disease resistance of Pacific white shrimp (Litopenaeus vannamei) against Vibrio parahaemolyticus. A basal experimental diet was formulated and supplemented with 0, 0.3, 0.6, 0.9 and 1.2 g kg(-1) AP to produce five test diets (Con, AP0.3, AP0.6, AP0.9 and AP1...
September 4, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28876059/pentalinonsterol-a-constituent-of-pentalinon-andrieuxii-possesses-potent-immunomodulatory-activity-and-primes-t-cell-immune-responses
#4
Steve Oghumu, Sanjay Varikuti, Noushin Saljoughian, Cesar Terrazas, Andrew C Huntsman, Narasimham L Parinandi, James R Fuchs, A Douglas Kinghorn, Abhay R Satoskar
The use of natural products as adjuvants has emerged as a promising approach for the development of effective vaccine formulations. Pentalinonsterol (PEN) is a recently isolated compound from the roots of Pentalinon andrieuxii and has been shown to possess antileishmanial activity against Leishmania spp. The objective of this study was to examine the immunomodulatory properties of PEN and evaluate its potential as an adjuvant. Macrophages and bone-marrow-derived dendritic cells (BMDCs) were stimulated with PEN and tested for gene expression, cytokine production, and their ability to activate T cells in vitro...
September 6, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28873010/regulatory-interplay-between-leafy-apetala1-cauliflower-and-terminal-flower1-new-insights-into-an-old-relationship
#5
Antonio Serrano-Mislata, Kevin Goslin, Beibei Zheng, Liina Rae, Frank Wellmer, Emmanuelle Graciet, Francisco Madueño
The gene regulatory network comprised of LEAFY (LFY), APETALA1 (AP1), the AP1 paralog CAULIFLOWER (CAL), and TERMINAL FLOWER1 (TFL1) is a major determinant of the flowering process in Arabidopsis thaliana. TFL1 activity in the shoot apical meristem provides inflorescence identity while the transcription factors LFY and AP1/CAL confer floral identity to emerging floral primordia. It has been thought that LFY and AP1/CAL control the onset of flowering in part by repressing TFL1 expression in flowers. However, in the June issue of Plant Physiology, we reported that LFY and AP1 act antagonistically in the regulation of several key flowering regulators, including TFL1...
September 5, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28872777/orexin-a-increases-sympathetic-nerve-activity-through-promoting-expression-of-proinflammatory-cytokines-in-sprague-dawley-rats
#6
Yuanyuan Fan, Enshe Jiang, Taija Hahka, Qinghui Chen, Jianqun Yan, Zhiying Shan
AIM: Accumulating evidence suggests that orexin signaling is involved in the regulation of blood pressure and cardiovascular function. However, the underlying mechanisms are not clear. Here we test the hypothesis that upregulated orexin A signaling in the paraventricular nucleus (PVN) increases sympathetic nerve activity (SNA) through stimulating expression of proinflammatory cytokines (PICs). METHODS: In vivo sympathetic nerve recordings were performed to test the impact of PVN orexin signaling on sympathetic outflow in Sprague-Dawley (SD) rats...
September 5, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28859074/open-chromatin-profiling-identifies-ap1-as-a-transcriptional-regulator-in-oesophageal-adenocarcinoma
#7
Edward Britton, Connor Rogerson, Shaveta Mehta, Yaoyong Li, Xiaodun Li, Rebecca C Fitzgerald, Yeng S Ang, Andrew D Sharrocks
Oesophageal adenocarcinoma (OAC) is one of the ten most prevalent forms of cancer and is showing a rapid increase in incidence and yet exhibits poor survival rates. Compared to many other common cancers, the molecular changes that occur in this disease are relatively poorly understood. However, genes encoding chromatin remodeling enzymes are frequently mutated in OAC. This is consistent with the emerging concept that cancer cells exhibit reprogramming of their chromatin environment which leads to subsequent changes in their transcriptional profile...
August 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28857396/hyperphosphatemia-induces-senescence-in-human-endothelial-cells-by-increasing-endothelin-1-production
#8
Gemma Olmos, Patricia Martínez-Miguel, Elena Alcalde-Estevez, Diana Medrano, Patricia Sosa, Leocadio Rodríguez-Mañas, Manuel Naves-Diaz, Diego Rodríguez-Puyol, María Piedad Ruiz-Torres, Susana López-Ongil
Hyperphosphatemia is related to some pathologies, affecting vascular cell behavior. This work analyzes whether high concentration of extracellular phosphate induces endothelial senescence through up-regulation of endothelin-1 (ET-1), exploring the mechanisms involved. The phosphate donor β-glycerophosphate (BGP) in human endothelial cells increased ET-1 production, endothelin-converting enzyme-1 (ECE-1) protein, and mRNA expression, which depend on the AP-1 activation through ROS production. In parallel, BGP also induced endothelial senescence by increasing p16 expression and the senescence-associated β-galactosidase (SA-ß-GAL) activity...
August 31, 2017: Aging Cell
https://www.readbyqxmd.com/read/28843157/epidermal-growth-factor-as-a-mechanosensitizer-in-human-bone-marrow-stromal-cells
#9
Sigrid Müller-Deubert, Lothar Seefried, Melanie Krug, Franz Jakob, Regina Ebert
Epidermal growth factors (EGFs) e.g. EGF, heparin-binding EGF and transforming growth factor alpha and their receptors e.g. EGFR and ErbB2 control proinflammatory signaling and modulate proliferation in bone marrow stromal cells (BMSC). Interleukin-6 and interleukin-8 are EGF targets and participate in the inflammatory phase of bone regeneration via non-canonical wnt signaling. BMSC differentiation is also influenced by mechanical strain-related activation of ERK1/2 and AP-1, but the role of EGFR signaling in mechanotransduction is unclear...
August 18, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28830473/survival-outcomes-of-hepatectomy-for-stage-b-hepatocellular-carcinoma-in-the-bclc-classification
#10
Toshiya Kamiyama, Tatsuya Orimo, Kenji Wakayama, Shingo Shimada, Akihisa Nagatsu, Hideki Yokoo, Hirofumi Kamachi, Kenichiro Yamashita, Tsuyoshi Shimamura, Akinobu Taketomi
BACKGROUND: Because hepatectomy is not recommended in patients with stage B hepatocellular carcinoma (HCC) of the Barcelona Clinic Liver Cancer (BCLC) staging, we evaluated the survival outcomes of hepatectomy for stage B in the BCLC system. METHODS: Data were collected from 297 consecutive adult stage B patients who underwent curative hepatectomy for HCC between 1996 and 2014 in Hokkaido University Hospital. Overall survival (OS), disease-free survival (DFS), and risk factors were analyzed using the Kaplan-Meier method...
August 22, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28811543/4-e-p-tolylimino-methylbenzene-1-2-diol-timbd-suppresses-hiv1-gp120-mediated-production-of-il6-and-il8-but-not-ccl5
#11
Fatma Abdalla, Anantha Nookala, Subhash B Padhye, Anil Kumar, Hari K Bhat
Human immunodeficiency virus (HIV) has been associated with inflammatory effects that may potentially result in neurodegenerative changes and a number of newer chemotherapeutic agents are being tested to ameliorate these effects. In this study, we investigated the anti-neuroinflammatory activity of a novel resveratrol analog 4-(E)-{(p-tolylimino)-methylbenzene-1,2-diol} (TIMBD) against HIV1-gp120 induced neuroinflammation in SVG astrocytes. SVG astrocytic cells were pretreated with TIMBD or resveratrol (RES) and then transfected with a plasmid encoding HIV1-gp120...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28796196/two-c3h-type-zinc-finger-protein-genes-cpczf1-and-cpczf2-from-chimonanthus-praecox-affect-stamen-development-in-arabidopsis
#12
Huamin Liu, Renwei Huang, Jing Ma, Shunzhao Sui, Yulong Guo, Daofeng Liu, Zhineng Li, Yechun Lin, Mingyang Li
Wintersweet (Chimonanthus praecox) is a popular garden plant because of its flowering time, sweet fragrance, and ornamental value. However, research into the molecular mechanism that regulates flower development in wintersweet is still limited. In this study, we sought to investigate the molecular characteristics, expression patterns, and potential functions of two C3H-type zinc finger (CZF) protein genes, CpCZF1 and CpCZF2, which were isolated from the wintersweet flowers based on the flower developmental transcriptome database...
August 10, 2017: Genes
https://www.readbyqxmd.com/read/28748534/mir-130b-directly-targets-arhgap1-to-drive-activation-of-a-metastatic-cdc42-pak1-ap1-positive-feedback-loop-in-ewing-sarcoma
#13
Laura Satterfield, Ryan Shuck, Lyazat Kurenbekova, Wendy Allen-Rhoades, Dean Edwards, Shixia Huang, Kimal Rajapakshe, Cristian Coarfa, Lawrence A Donehower, Jason T Yustein
Ewing Sarcoma (ES) is a highly aggressive bone tumor with peak incidence in the adolescent population. It has a high propensity to metastasize, which is associated with dismal survival rates of approximately 25%. To further understand mechanisms of metastasis we investigated microRNA regulatory networks in ES. Our studies focused on miR-130b due to our analysis that enhanced expression of this microRNA has clinical relevance in multiple sarcomas, including ES. Our studies provide insights into a novel positive feedback network involving the direct regulation of miR-130b and activation of downstream signaling events contributing toward sarcoma metastasis...
November 15, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28736155/integrin-linked-kinase-regulates-the-transcription-of-aqp2-by-nfatc3
#14
Marco Hatem-Vaquero, Mercedes Griera, Wieslawa Giermakowska, Alicia Luengo, Laura Calleros, Laura V Gonzalez Bosc, Diego Rodríguez-Puyol, Manuel Rodríguez-Puyol, Sergio De Frutos
Two processes are associated with progressive loss of renal function: 1) decreased aquaporin-2 (AQP2) expression and urinary concentrating capacity (Nephrogenic Diabetes Insipidus, NDI); and 2) changes in extracellular matrix (ECM) composition, e.g. increased collagen I (Col I) deposition, characteristic of tubule-interstitial fibrosis. AQP2 expression is regulated by both the ECM-to-intracellular scaffold protein integrin-linked kinase (ILK) by NFATc/AP1 and other transcription factors. In the present work, we used in vivo and in vitro approaches to examine ILK participation in NFATc3/AP-1-mediated increases in AQP2 gene expression...
July 20, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28728983/etv4-and-ap1-transcription-factors-form-multivalent-interactions-with-three-sites-on-the-med25-activator-interacting-domain
#15
Simon L Currie, Jedediah J Doane, Kathryn S Evans, Niraja Bhachech, Bethany J Madison, Desmond K W Lau, Lawrence P McIntosh, Jack J Skalicky, Kathleen A Clark, Barbara J Graves
The recruitment of transcriptional cofactors by sequence-specific transcription factors challenges the basis of high affinity and selective interactions. Extending previous studies that the N-terminal activation domain (AD) of ETV5 interacts with Mediator subunit 25 (MED25), we establish that similar, aromatic-rich motifs located both in the AD and in the DNA-binding domain (DBD) of the related ETS factor ETV4 interact with MED25. These ETV4 regions bind MED25 independently, display distinct kinetics, and combine to contribute to a high-affinity interaction of full-length ETV4 with MED25...
July 17, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28728022/loss-of-tmem106b-ameliorates-lysosomal-and-frontotemporal-dementia-related-phenotypes-in-progranulin-deficient-mice
#16
Zoe A Klein, Hideyuki Takahashi, Mengxiao Ma, Massimiliano Stagi, Melissa Zhou, TuKiet T Lam, Stephen M Strittmatter
Progranulin (GRN) and TMEM106B are associated with several common neurodegenerative disorders including frontotemporal lobar degeneration (FTLD). A TMEM106B variant modifies GRN-associated FTLD risk. However, their functional relationship in vivo and the mechanisms underlying the risk modification remain unclear. Here, using transcriptomic and proteomic analyses with Grn(-/-) and Tmem106b(-/-) mice, we show that, while multiple lysosomal enzymes are increased in Grn(-/-) brain at both transcriptional and protein levels, TMEM106B deficiency causes reduction in several lysosomal enzymes...
July 19, 2017: Neuron
https://www.readbyqxmd.com/read/28716897/mcpip1-downregulation-in-clear-cell-renal-cell-carcinoma-promotes-vascularization-and-metastatic-progression
#17
Paulina Marona, Judyta Górka, Zofia Mazurek, Waclaw Wilk, Janusz Rys, Marcin Majka, Jolanta Jura, Katarzyna Miekus
Clear cell renal cell carcinoma (ccRCC) is the most common type of kidney cancer and it forms highly vascularized tumors. The monocyte endoribonuclease MCPIP1 negatively regulates inflammation by degrading mRNA encoding proinflammatory cytokines, such as IL6, IL1, and IL12. MCPIP1 is also a negative regulator of NFκB and AP1 activity and it influences a broad range of miRNA activities. Here we report that MCPIP1 protein levels are decreased during renal cancer progression. In patient-derived tumors and xenografts established in NOD-SCID or nude mice, low MCPIP1 levels correlated strongly with increased proliferation, tumor outgrowth, and vascularity...
July 17, 2017: Cancer Research
https://www.readbyqxmd.com/read/28711499/inhibition-of-il-6-stat3-signaling-in-human-cancer-cells-using-evista
#18
Wei Shi, Dan Yan, Chongqiang Zhao, Miaomiao Xiao, Yina Wang, Haiyan Ma, Tianshu Liu, Hua Qin, Cuntai Zhang, Chenglong Li, Jiayuh Lin, Sheng Li, Jiagao Lv, Li Lin
Persistent activation of IL-6/STAT3 signaling pathway has been frequently detected in human cancer including breast cancer, colon cancer and multiple myeloma. IL-6/STAT3 can be a promising target for cancer prevent and treatment. However, few STAT3 inhibitors with high efficiency, specificity and safety is available for present clinical cancer therapy. Evista (Raloxifene·HCl) is known as selective estrogen receptor modulator which has been used for the prevention and treatment of osteoporosis and was approved for reducing the risk of invasive breast cancer...
September 9, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28703739/the-sbp-box-gene-vpsbp11-from-chinese-wild-vitis-is-involved-in-floral-transition-and-affects-leaf-development
#19
Hongmin Hou, Xiaoxiao Yan, Ting Sha, Qin Yan, Xiping Wang
Flowering occurs in angiosperms during a major developmental transition from vegetative growth to the reproductive phase. Squamosa promoter binding protein (SBP)-box genes have been found to play critical roles in regulating flower and fruit development, but their roles in grapevine have remained unclear. To better understand the functions of the grape SBP-box genes in both vegetative and reproductive growth phases, a full-length complementary DNA (cDNA) sequence of the putative SBP-box transcription factor gene, VpSBP11, was obtained from Chinese wild grapevine Vitis pseudoreticulata Wen Tsai Wang (W...
July 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28678424/the-metabolic-syndrome-alters-the-mirna-signature-of-porcine-adipose-tissue-derived-mesenchymal-stem-cells
#20
Yu Meng, Alfonso Eirin, Xiang-Yang Zhu, Hui Tang, Pritha Chanana, Amir Lerman, Andre J Van Wijnen, Lilach O Lerman
Autologous transplantation of mesenchymal stem cells (MSCs) is a viable option for the treatment of several diseases. Evidence indicates that MSCs release extracellular vesicles (EVs) and that EVs shuttle miRNAs to damaged parenchymal cells to activate an endogenous repair program. We hypothesize that comorbidities may interfere with the packaging of cargo in MSC-derived EVs. Therefore, we examined whether metabolic syndrome (MetS) modulates the miRNA content packed within MSC-derived EVs. MSCs were collected from swine abdominal adipose tissue after 16 weeks of lean or obese diet (n = 7 each)...
July 5, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
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