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https://www.readbyqxmd.com/read/29776009/dependence-receptors-the-dark-side-awakens
#1
REVIEW
Ana-Maria Negulescu, Patrick Mehlen
Transmembrane receptors are usually seen as on and off switch: when the specific ligand is bound, the receptor is on and transduces a downstream signal, while when the ligand is absent, the receptor is off. Over the last two decades several reports have argued from an alternative view where some receptors, depending on the context, will be active both in the presence and in the absence of ligand, being sort of onA and onB switch rather than on and off. These receptors have been named Dependence Receptors (DR) and they share the ability to actively trigger cell death when unbound by their respective ligands...
May 18, 2018: FEBS Journal
https://www.readbyqxmd.com/read/29776002/the-chaos-of-hospitalisation-for-patients-with-critical-limb-ischaemia-approaching-major-amputation
#2
Susan Monaro, Sandra West, Jana Pinkova, Janice Gullick
AIMS AND OBJECTIVES: To illuminate the hospital experience for patients and families when major amputation has been advised for critical limb ischaemia (CLI). BACKGROUND: CLI creates significant burden to the health system and the family, particularly as the person with CLI approaches amputation. Major amputation is often offered as a late intervention for CLI in response to the marked deterioration of an ischaemic limb, and functional decline from reduced mobility, intractable pain, infection and/or toxaemia...
May 18, 2018: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/29775836/cognitive-and-behavioural-dispositions-in-offspring-at-high-risk-for-alcoholism
#3
Rajesh Kumar, Keshav Janakiprasad Kumar, Vivek Benegal
OBJECTIVES: Offspring with family history of alcoholism are considered to be at high risk for alcoholism. The present study sought to expand our understanding of cognitive and behavioural dispositions associated with executive control and self-regulation in alcohol naïve offspring with and without family history of alcoholism. METHODS: Sample comprised of alcohol naive offspring in two groups: (i) at high risk (n = 34) and (ii) at low risk for alcoholism (n = 34)...
May 15, 2018: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/29775785/integration-of-mirna-weighted-gene-co-expression-network-and-mirna-mrna-co-expression-analyses-reveals-potential-regulatory-functions-of-mirnas-in-calf-rumen-development
#4
Duy N Do, Pier-Luc Dudemaine, Bridget E Fomenky, Eveline M Ibeagha-Awemu
This study aimed to explore the roles of microRNAs (miRNAs) in calf rumen development during early life. Rumen tissues were collected from 16 calves (8 at pre-weaning and 8 at post-weaning) for miRNA-sequencing, differential expression (DE), miRNA weighted gene co-expression network (WGCNA) and miRNA-mRNA co-expression analyses. 295 miRNAs were identified. Bta-miR-143, miR-26a, miR-145 and miR-27b were the most abundantly expressed. 122 miRNAs were significantly DE between the pre- and post-weaning periods and the most up- and down-regulated miRNAs were bta-miR-29b and bta-miR-493, respectively...
May 15, 2018: Genomics
https://www.readbyqxmd.com/read/29775650/formulants-of-glyphosate-based-herbicides-have-more-deleterious-impact-than-glyphosate-on-tm4-sertoli-cells
#5
Alison Vanlaeys, Florine Dubuisson, Gilles-Eric Seralini, Carine Travert
Roundup and Glyphogan are glyphosate-based herbicides containing the same concentration of glyphosate and confidential formulants. Formulants are declared as inert diluents but some are more toxic than glyphosate, such as the family of polyethoxylated alkylamines (POEA). We tested glyphosate alone, glyphosate-based herbicide formulations and POEA on the immature mouse Sertoli cell line (TM4), at concentrations ranging from environmental to agricultural-use levels. Our results show that formulations of glyphosate-based herbicides induce TM4 mitochondrial dysfunction (like glyphosate, but to a lesser extent), disruption of cell detoxification systems, lipid droplet accumulation and mortality at sub-agricultural doses...
May 15, 2018: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29775441/-the-biological-function-and-significance-of-il-35-in-the-pathogenesis-of-atherosclerosis
#6
EDITORIAL
Mateusz Staciwa, Marlena Broncel
The imbalance of anti-inflammatory /pro- inflammatory cytokines plays an important role in the progression of atherosclerosis. Interleukin 35 (IL-35) is a novel member of the IL-12 family, consisting of an EBVinduced gene 3 (EBI3) subunit and a P35 subunit. IL-35 is an immunesuppressive cytokine mainly produced by regulatory T cells. Accumulating evidence suggests that IL-35 may represent a target for antiatherosclerotic therapy based on its several anti-inflammatory features. This review provide a brief overview of IL-35 biology and the role of IL-35 in the atherosclerosis, autoimmune disease and cancers...
April 23, 2018: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29775417/targeting-histone-methyltransferase-enhancer-of-zeste-homolog-2-inhibits-renal-epithelial-mesenchymal-transition-and-attenuates-renal-fibrosis
#7
Xiaoxu Zhou, Chongxiang Xiong, Evelyn Tolbert, Ting C Zhao, George Bayliss, Shougang Zhuang
Enhancer of zeste homolog-2 (EZH2) is a methyltransferase that induces histone H3 lysine 27 trimethylation (H3K27me3) and functions as an oncogenic factor in many cancer types. Its role in renal epithelial-mesenchymal transition (EMT) remains unknown. In this study, we found that EZH2 and H3K27me3 were highly expressed in mouse kidney with unilateral ureteral obstruction and cultured mouse kidney proximal tubular (TKPT) cells undergoing EMT. Inhibition of EZH2 with 3-deazaneplanocin A (3-DZNeP) attenuated renal fibrosis, which was associated with preserving E-cadherin expression and inhibiting Vimentin up-regulation in the obstructed kidney...
May 18, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29775303/simultaneous-targeting-of-rgd-integrins-and-dual-murine-double-minute-proteins-in-glioblastoma-multiforme
#8
Francesco Merlino, Simona Daniele, Valeria La Pietra, Salvatore Di Maro, Francesco Saverio Di Leva, Diego Brancaccio, Stefano Tomassi, Stefano Giuntini, Linda Cerofolini, Marco Fragai, Claudio Luchinat, Florian Reichart, Chiara Cavallini, Barbara Costa, Rebecca Piccarducci, Sabrina Taliani, Federico Da Settimo, Claudia Martini, Horst Kessler, Ettore Novellino, Luciana Marinelli
In the fight against Glioblastoma Multiforme, recent literature data have highlighted that integrin α5β1 and p53 are part of convergent pathways in the control of glioma apoptosis. This observation prompted us to seek a molecule able to simultaneously modulate both target families. Analyzing the results of a previous virtual screening against murine double minute 2 protein (MDM2), we envisaged that Arg-Gly-Asp (RGD)-mimetic molecules could be inhibitors of MDM2/4. Herein we present the discovery of compound 7, which inhibits both MDM2/4 and α5β1/αvβ3 integrins...
May 18, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29775222/abca1-inhibits-pdgf-induced-proliferation-and-migration-of-rat-airway-smooth-muscle-cell-through-blocking-tlr2-nf-%C3%AE%C2%BAb-nfatc1-signaling
#9
Wei Cheng, Kun Yan, Yanni Chen, Wen Zhang, Zongzheng Ji, Chengxue Dang
Airway remodeling is a key feature of asthma, characterized by abnormal proliferation and migration of airway smooth muscle cells (ASMCs). ABCA1, a member of the ATP-binding cassette family of active transporters, plays an essential role in the progression of lung diseases. However, the contributions of ABCA1 in ASMCs remain to be explored. The purpose of the present study was to investigate the functional role and potential molecular mechanism of ABCA1 in platelet derived growth factor (PDGF)-induced primary rat ASMC proliferation and migration...
May 18, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29775050/modulation-of-macrophage-phenotype-by-biodegradable-polyurethane-nanoparticles-the-possible-relation-between-macrophage-polarization-and-immune-response-of-nanoparticles
#10
Yen-Jang Huang, Kun-Che Hung, Huey-Shan Hung, Shan-Hui Hsu
Nanomaterials with surface functionalized by different chemical groups can either provoke or attenuate the immune responses of the nanomaterials, which is critical to their biomedical efficacies. In this study we demonstrate that synthetic waterborne polyurethane nanoparticles (PU NPs) can inhibit the macrophage polarization towards the M1 phenotype, but not M2 phenotype. The surface-functionalized PU NPs decrease the secretion levels of proinflammatory cytokines (TNF-α and IL-1β) for M1 macrophages. Specifically, PU NPs with carboxyl groups on the surface exhibit a greater extent of inhibition on M1 polarization than those with amine groups...
May 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29774620/cellulose-degradation-in-gastrophysa-viridula-coleoptera-chrysomelidae-functional-characterization-of-two-cazymes-belonging-to-glycoside-hydrolase-family-45-reveals-a-novel-enzymatic-activity
#11
André Busch, Grit Kunert, Natalie Wielsch, Yannick Pauchet
Cellulose is a major component of the primary and secondary cell walls in plants. Cellulose is considered to be the most abundant biopolymer on Earth and represents a large potential source of metabolic energy. Yet, cellulose degradation is rare and mostly restricted to cellulolytic microorganisms. Recently, various metazoans, including leaf beetles, have been found to encode their own cellulases, giving them the ability to degrade cellulose independently of cellulolytic symbionts. Here, we analyzed the cellulosic capacity of the leaf beetle Gastrophysa viridula, which typically feeds on Rumex plants...
May 17, 2018: Insect Molecular Biology
https://www.readbyqxmd.com/read/29774526/retrotransposable-genetic-elements-causing-neutrophil-defects
#12
REVIEW
Dirk Roos, Martin de Boer
Retrotransposable elements are stretches of DNA that encode proteins with the inherent ability to insert their own RNA or another RNA by reverse transcriptase as DNA into a new genomic location. In humans, the only autonomous retrotransposable elements are members of the Long INterspersed Element-1 (LINE-1) family. LINE-1s may cause gene inactivation and human disease. We present a brief summary of the published knowledge about LINE-1s in humans and the RNAs that these elements can transpose, and we focus on the effect of LINE-1-mediated retrotransposition on human neutrophil function...
May 17, 2018: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29774043/integration-of-the-pokeweed-mirna-and-mrna-transcriptomes-reveals-targeting-of-jasmonic-acid-responsive-genes
#13
Kira C M Neller, Alexander Klenov, Juan C Guzman, Katalin A Hudak
The American pokeweed plant, Phytolacca americana , displays broad-spectrum resistance to plant viruses and is a heavy metal hyperaccumulator. However, little is known about the regulation of biotic and abiotic stress responses in this non-model plant. To investigate the control of miRNAs in gene expression, we sequenced the small RNA transcriptome of pokeweed treated with jasmonic acid (JA), a hormone that mediates pathogen defense and stress tolerance. We predicted 145 miRNAs responsive to JA, most of which were unique to pokeweed...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774039/a-membrane-bound-nac-like-transcription-factor-osntl5-represses-the-flowering-in-oryza-sativa
#14
Siyi Guo, Shaojun Dai, Prashant K Singh, Hongyan Wang, Yanan Wang, Jeanie L H Tan, Wanyi Wee, Toshiro Ito
In spite of short-day (SD) nature, rice ( Oryza sativa ) shares a conserved photoperiodic network for flowering control with long-day plants like Arabidopsis thaliana. Flowering or heading is an important agronomic trait in rice. NAC transcription factors (TFs) are well-conserved and one of the largest families of plant TFs. However, their function in flowering or heading time is not well-known yet. A preferential expression of a membrane-bound NAC-like TF OsNTL5 in developing leaves and panicles of rice indicated to us its putative role in flowering...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774038/altered-expression-of-the-malate-permeable-anion-channel-osalmt4-reduces-the-growth-of-rice-under-low-radiance
#15
Jie Liu, Muyun Xu, Gonzalo M Estavillo, Emmanuel Delhaize, Rosemary G White, Meixue Zhou, Peter R Ryan
We examined the function of OsALMT4 in rice ( Oryza sativa L.) which is a member of the aluminum-activated malate transporter family. Previous studies showed that OsALMT4 localizes to the plasma membrane and that expression in transgenic rice lines results in a constitutive release of malate from the roots. Here, we show that OsALMT4 is expressed widely in roots, shoots, flowers, and grain but not guard cells. Expression was also affected by ionic and osmotic stress, light and to the hormones ABA, IAA, and salicylic acid...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774006/parent-s-relative-perceived-work-flexibility-compared-to-their-partner-is-associated-with-emotional-exhaustion
#16
Constanze Leineweber, Helena Falkenberg, Sophie C Albrecht
A number of studies have found that control over work conditions and hours is positively related to mental health. Still, potential positive and negative effects of work flexibility remain to be fully explored. On the one hand, higher work flexibility might provide better opportunities for recovery. On the other hand, especially mothers may use flexibility to meet household and family demands. Here, we investigated the association between parent's work flexibility, rated relative to their partner, and emotional exhaustion in interaction with gender...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29773874/mutations-in-six-nephrosis-genes-delineate-a-pathogenic-pathway-amenable-to-treatment
#17
Shazia Ashraf, Hiroki Kudo, Jia Rao, Atsuo Kikuchi, Eugen Widmeier, Jennifer A Lawson, Weizhen Tan, Tobias Hermle, Jillian K Warejko, Shirlee Shril, Merlin Airik, Tilman Jobst-Schwan, Svjetlana Lovric, Daniela A Braun, Heon Yung Gee, David Schapiro, Amar J Majmundar, Carolin E Sadowski, Werner L Pabst, Ankana Daga, Amelie T van der Ven, Johanna M Schmidt, Boon Chuan Low, Anjali Bansal Gupta, Brajendra K Tripathi, Jenny Wong, Kirk Campbell, Kay Metcalfe, Denny Schanze, Tetsuya Niihori, Hiroshi Kaito, Kandai Nozu, Hiroyasu Tsukaguchi, Ryojiro Tanaka, Kiyoshi Hamahira, Yasuko Kobayashi, Takumi Takizawa, Ryo Funayama, Keiko Nakayama, Yoko Aoki, Naonori Kumagai, Kazumoto Iijima, Henry Fehrenbach, Jameela A Kari, Sherif El Desoky, Sawsan Jalalah, Radovan Bogdanovic, Nataša Stajić, Hildegard Zappel, Assel Rakhmetova, Sharon-Rose Wassmer, Therese Jungraithmayr, Juergen Strehlau, Aravind Selvin Kumar, Arvind Bagga, Neveen A Soliman, Shrikant M Mane, Lewis Kaufman, Douglas R Lowy, Mohamad A Jairajpuri, Richard P Lifton, York Pei, Martin Zenker, Shigeo Kure, Friedhelm Hildebrandt
No efficient treatment exists for nephrotic syndrome (NS), a frequent cause of chronic kidney disease. Here we show mutations in six different genes (MAGI2, TNS2, DLC1, CDK20, ITSN1, ITSN2) as causing NS in 17 families with partially treatment-sensitive NS (pTSNS). These proteins interact and we delineate their roles in Rho-like small GTPase (RLSG) activity, and demonstrate deficiency for mutants of pTSNS patients. We find that CDK20 regulates DLC1. Knockdown of MAGI2, DLC1, or CDK20 in cultured podocytes reduces migration rate...
May 17, 2018: Nature Communications
https://www.readbyqxmd.com/read/29773831/dnajc17-is-localized-in-nuclear-speckles-and-interacts-with-splicing-machinery-components
#18
A Pascarella, G Ferrandino, S C Credendino, C Moccia, F D'Angelo, B Miranda, C D'Ambrosio, P Bielli, O Spadaro, M Ceccarelli, A Scaloni, C Sette, M De Felice, G De Vita, E Amendola
DNAJC17 is a heat shock protein (HSP40) family member, identified in mouse as susceptibility gene for congenital hypothyroidism. DNAJC17 knockout mouse embryos die prior to implantation. In humans, germline homozygous mutations in DNAJC17 have been found in syndromic retinal dystrophy patients, while heterozygous mutations represent candidate pathogenic events for myeloproliferative disorders. Despite widespread expression and involvement in human diseases, DNAJC17 function is still poorly understood. Herein, we have investigated its function through high-throughput transcriptomic and proteomic approaches...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773667/notch-ligand-dll1-mediates-cross-talk-between-mammary-stem-cells-and-the-macrophageal-niche
#19
Rumela Chakrabarti, Toni Celià-Terrassa, Sushil Kumar, Xiang Hang, Yong Wei, Abrar Choudhury, Julie Hwang, Jia Peng, Briana Nixon, John J Grady, Christina DeCoste, Jie Gao, Johan H van Es, Ming O Li, Iannis Aifantis, Hans Clevers, Yibin Kang
The stem cell niche is a specialized environment that dictates stem cell function during development and homeostasis. Here, we show that Dll1, a Notch pathway ligand, is enriched in mammary gland stem cells (MaSCs) and mediates critical interactions with stromal macrophages in the surrounding niche. Conditional deletion of Dll1 reduced the number of MaSCs and impaired ductal morphogenesis in the mammary gland. Moreover, MaSC-expressed Dll1 activates Notch signaling in stromal macrophages, increasing their expression of Wnt family ligands such as Wnt3, Wnt10A, and Wnt16, thereby initiating a feed back loop that promotes the function of Dll1+ MaSCs...
May 17, 2018: Science
https://www.readbyqxmd.com/read/29773644/bhlhe40-is-an-essential-repressor-of-il-10-during-mycobacterium-tuberculosis-infection
#20
Jeremy P Huynh, Chih-Chung Lin, Jacqueline M Kimmey, Nicholas N Jarjour, Elizabeth A Schwarzkopf, Tara R Bradstreet, Irina Shchukina, Oleg Shpynov, Casey T Weaver, Reshma Taneja, Maxim N Artyomov, Brian T Edelson, Christina L Stallings
The cytokine IL-10 antagonizes pathways that control Mycobacterium tuberculosis ( Mtb ) infection. Nevertheless, the impact of IL-10 during Mtb infection has been difficult to decipher because loss-of-function studies in animal models have yielded only mild phenotypes. We have discovered that the transcription factor basic helix-loop-helix family member e40 (Bhlhe40) is required to repress Il10 expression during Mtb infection. Loss of Bhlhe40 in mice results in higher Il10 expression, higher bacterial burden, and early susceptibility similar to that observed in mice lacking IFN-γ...
May 17, 2018: Journal of Experimental Medicine
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