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https://www.readbyqxmd.com/read/29778837/defining-host-responses-during-systemic-bacterial-infection-through-construction-of-a-murine-organ-proteome-atlas
#1
John D Lapek, Robert H Mills, Jacob M Wozniak, Anaamika Campeau, Ronnie H Fang, Xiaoli Wei, Kirsten van de Groep, Araceli Perez-Lopez, Nina M van Sorge, Manuela Raffatellu, Rob Knight, Liangfang Zhang, David J Gonzalez
Group A Streptococcus (GAS) remains one of the top 10 deadliest human pathogens worldwide despite its sensitivity to penicillin. Although the most common GAS infection is pharyngitis (strep throat), it also causes life-threatening systemic infections. A series of complex networks between host and pathogen drive invasive infections, which have not been comprehensively mapped. Attempting to map these interactions, we examined organ-level protein dynamics using a mouse model of systemic GAS infection. We quantified over 11,000 proteins, defining organ-specific markers for all analyzed tissues...
April 28, 2018: Cell Systems
https://www.readbyqxmd.com/read/29776629/clinical-implication-of-micrornas-in-molecular-pathology-an-update-for-2018
#2
REVIEW
Seema Sethi, Sajiv Sethi, Martin H Bluth
MicroRNAs (miRNAs) are poised to provide diagnostic, prognostic, and therapeutic targets for several diseases including malignancies for precision medicine applications. The miRNAs have immense potential in the clinical arena because they can be detected in the blood, serum, tissues (fresh and formalin-fixed paraffin-embedded), and fine-needle aspirate specimens. The most attractive feature of miRNA-based therapy is that a single miRNA could be useful for targeting multiple genes that are deregulated in cancers, which can be further investigated through systems biology and network analysis that may provide cancer-specific personalized therapy...
June 2018: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/29776156/realizations-of-highly-heterogeneous-collagen-networks-via-stochastic-reconstruction-for-micromechanical-analysis-of-tumor-cell-invasion
#3
Hanqing Nan, Long Liang, Guo Chen, Liyu Liu, Ruchuan Liu, Yang Jiao
Three-dimensional (3D) collective cell migration in a collagen-based extracellular matrix (ECM) is among one of the most significant topics in developmental biology, cancer progression, tissue regeneration, and immune response. Recent studies have suggested that collagen-fiber mediated force transmission in cellularized ECM plays an important role in stress homeostasis and regulation of collective cellular behaviors. Motivated by the recent in vitro observation that oriented collagen can significantly enhance the penetration of migrating breast cancer cells into dense Matrigel which mimics the intravasation process in vivo [Han et al...
March 2018: Physical Review. E
https://www.readbyqxmd.com/read/29775757/molecular-characterization-of-physis-tissue-by-rna-sequencing
#4
Christopher R Paradise, Catalina Galeano-Garces, Daniela Galeano-Garces, Amel Dudakovic, Todd A Milbrandt, Daniel B F Saris, Aaron J Krych, Marcel Karperien, Gabriel B Ferguson, Denis Evseenko, Scott M Riester, Andre J van Wijnen, A Noelle Larson
The physis is a well-established and anatomically distinct cartilaginous structure that is crucial for normal long-bone development and growth. Abnormalities in physis function are linked to growth plate disorders and other pediatric musculoskeletal diseases. Understanding the molecular pathways operative in the physis may permit development of regenerative therapies to complement surgically-based procedures that are the current standard of care for growth plate disorders. Here, we performed next generation RNA sequencing on mRNA isolated from human physis and other skeletal tissues (e...
May 15, 2018: Gene
https://www.readbyqxmd.com/read/29773646/a-blood-capillary-plexus-derived-population-of-progenitor-cells-contributes-to-genesis-of-the-dermal-lymphatic-vasculature-during-embryonic-development
#5
Cathy Pichol-Thievend, Kelly L Betterman, Xiaolei Liu, Wanshu Ma, Renae Skoczylas, Emmanuelle Lesieur, Frank L Bos, Dorte Schulte, Stefan Schulte-Merker, Benjamin M Hogan, Guillermo Oliver, Natasha L Harvey, Mathias Francois
Despite the essential role of the lymphatic vasculature in tissue homeostasis and disease, knowledge of the organ-specific origins of lymphatic endothelial progenitor cells remains limited. The assumption that most murine embryonic lymphatic endothelial cells (LECs) are venous derived has recently been challenged. Here, we show that the embryonic dermal blood capillary plexus constitutes an additional, local source of LECs that contributes to the formation of the dermal lymphatic vascular network. We describe a novel mechanism whereby rare PROX1-positive endothelial cells exit the capillary plexus in a Ccbe1 -dependent manner to establish discrete LEC clusters...
May 17, 2018: Development
https://www.readbyqxmd.com/read/29773227/de1sign-of-synthetic-extracellular-matrices-for-probing-breast-cancer-cell-growth-using-robust-cyctocompatible-nucleophilic-thiol-yne-addition-chemistry
#6
Laura J Macdougall, Katherine L Wiley, April M Kloxin, Andrew P Dove
Controlled, three-dimensional (3D) cell culture systems are of growing interest for both tissue regeneration and disease, including cancer, enabling hypothesis testing about the effects of microenvironment cues on a variety of cellular processes, including aspects of disease progression. In this work, we encapsulate and culture in three dimensions different cancer cell lines in a synthetic extracellular matrix (ECM), using mild and efficient chemistry. Specifically, harnessing the nucleophilic addition of thiols to activated alkynes, we have created hydrogel-based materials with multifunctional poly(ethylene glycol) (PEG) and select biomimetic peptides...
May 7, 2018: Biomaterials
https://www.readbyqxmd.com/read/29771984/dna-methylation-of-hepatic-iron-sensing-genes-and-the-regulation-of-hepcidin-expression
#7
Paul A Sharp, Rachel Clarkson, Ahmed Hussain, Robert J Weeks, Ian M Morison
Production of the iron regulatory peptide hepcidin is tightly controlled by a network of proteins in hepatocytes that sense levels of iron in the circulation (as diferric-transferrin) and in tissues (in ferritin). Human studies show high variability in the normal range of serum hepcidin levels. We have postulated that this may, in part, be related to inter-individual variability in the expression of genes in the iron sensing pathway, potentially governed by epigenetic factors. Here, we have investigated whether genes encoding hepatic iron sensing proteins and hepcidin are regulated by DNA methylation...
2018: PloS One
https://www.readbyqxmd.com/read/29770995/adolescent-and-young-adult-oncology-patients-in-france-heterogeneity-in-pathways-of-care
#8
Emmanuel Desandes, Laurence Brugières, Florence Molinié, Gautier Defossez, Patricia Delafosse, Karine Jehannin-Ligier, Michel Velten, Brigitte Trétarre, Brice Amadéo, Emilie Marrer, Anne-Sophie Woronoff, Olivier Ganry, Alain Monnereau, Tania d'Almeida, Xavier Troussard, Laetitia Daubisse-Marliac, Simona Bara, Anne-Valérie Guizard, Isabelle Baldi, Guy Launoy, Jacqueline Clavel, Brigitte Lacour
BACKGROUND: In order to evaluate at the population level the impact of the actions developed in France since 2004 to organize the care of adolescents and young adults (AYAs) with cancer, we conducted the present study to provide an unbiased view of the pathway of care of these patients. METHODS: Using a population-based registry, we conducted a review of all cases of cancer diagnosed during 2012 and 2013 in 15- to 24-year-old patients living in nineteen French administrative areas...
May 17, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29767563/integrative-physiology-of-pneumonia
#9
Lee J Quinton, Allan J Walkey, Joseph P Mizgerd
Pneumonia is a type of acute lower respiratory infection that is common and severe. The outcome of lower respiratory infection is determined by the degrees to which immunity is protective and inflammation is damaging. Intercellular and interorgan signaling networks coordinate these actions to fight infection and protect the tissue. Cells residing in the lung initiate and steer these responses, with additional immunity effectors recruited from the bloodstream. Responses of extrapulmonary tissues, including the liver, bone marrow, and others, are essential to resistance and resilience...
July 1, 2018: Physiological Reviews
https://www.readbyqxmd.com/read/29764841/genetic-targeting-of-organ-specific-blood-vessels
#10
Wenjuan Pu, Lingjuan He, Ximeng Han, Xueying Tian, Yan Li, Hui Zhang, Qiaozhen Liu, Xiuzhen Huang, Libo Zhang, Qing-Dong Wang, Zhenyang Yu, Xiao Yang, Nicola Smart, Bin Zhou
<u>Rationale:</u> Organs of the body require vascular networks to supply oxygen and nutrients and maintain physiological function. The blood vessels of different organs are structurally and functionally heterogeneous in nature. To more precisely dissect their distinct in vivo function in individual organs, without potential interference from off-site targets, it is necessary to genetically target them in an organ-specific manner. <u>Objective:</u> To generate a genetic system that targets vascular endothelial cells in an organ- or tissue- specific manner and to exemplify the potential application of intersectional genetics for precise, target-specific gene manipulation in vivo...
May 15, 2018: Circulation Research
https://www.readbyqxmd.com/read/29763523/role-of-basic-pentacysteiene-transcription-factors-in-a-sub-set-of-cytokinin-signaling-responses
#11
Carly M Shanks, Andreas Hecker, Chia-Yi Cheng, Luise Brand, Silvio Collani, Markus Schmid, G Eric Schaller, Dierk Wanke, Klaus Harter, Joseph J Kieber
Cytokinin plays diverse roles in plant growth and development, generally acting by modulating gene transcription in target tissues. The type-B ARR transcription factors have emerged as primary targets of cytokinin signaling and are required for essentially all cytokinin-mediated changes in gene expression. The diversity of cytokinin function is likely imparted by the activity of various transcription factors working with the type-B ARRs to alter specific sets of target genes. One potential set of co-regulators modulating the cytokinin response are the BARLEY B-RECOMBINANT/BASIC PENTACYSTEINE (BBR/BPC) family of plant-specific transcription factors...
May 15, 2018: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29763380/angiogenin-and-the-mmp9-timp2-axis-are-up-regulated-in-proangiogenic-decidual-nk-like-cells-from-patients-with-colorectal-cancer
#12
Antonino Bruno, Barbara Bassani, Davide Giuseppe D'Urso, Ilvana Pitaku, Elisa Cassinotti, Giuseppe Pelosi, Luigi Boni, Lorenzo Dominioni, Douglas M Noonan, Lorenzo Mortara, Adriana Albini
NK cells are effector lymphocytes involved in tumor immunosurveillance; however, in patients with solid malignancies, NK cells have compromised functions. We have previously reported that lung tumor-associated NK cells (TANKs; peripheral blood) and tumor-infiltrating NK cells (TINKs) show proangiogenic, decidual NK-like (dNK) phenotype. In this study, we functionally and molecularly investigated TINKs and TANKs from blood and tissue samples of patients with colorectal cancer (CRC), a neoplasm in which inflammation and angiogenesis have clinical relevance, and compared them to NK cells from controls and patients with nononcologic inflammatory bowel disease...
May 15, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29762780/an-intersection-network-based-on-combining-snp-co-association-and-rna-co-expression-networks-for-feed-utilization-traits-in-japanese-black-cattle
#13
D Okada, S Endo, H Matsuda, S Ogawa, Y Taniguchi, T Katsuta, T Watanabe, H Iwaisaki
Genome-wide association studies (GWAS) of quantitative traits have detected numerous genetic associations, but they encounter difficulties in pinpointing prominent candidate genes and inferring gene networks. The present study used a systems genetics approach integrating GWAS results with external RNA-expression data to detect candidate gene networks in feed utilization and growth traits of Japanese Black cattle, which are matters of concern. A SNP co-association network was derived from significant correlations between SNPs with effects estimated by GWAS across seven phenotypic traits...
May 12, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29761447/integration-of-plant-metabolomics-data-with-metabolic-networks-progresses-and-challenges
#14
Nadine Töpfer, Samuel M D Seaver, Asaph Aharoni
In the last decade, plant genome-scale modeling has developed rapidly and modeling efforts have advanced from representing metabolic behavior of plant heterotrophic cell suspensions to studying the complex interplay of cell types, tissues, and organs. A crucial driving force for such developments is the availability and integration of "omics" data (e.g., transcriptomics, proteomics, and metabolomics) which enable the reconstruction, extraction, and application of context-specific metabolic networks...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29760082/a-cytokine-network-involving-il-36%C3%AE-il-23-and-il-22-promotes-antimicrobial-defense-and-recovery-from-intestinal-barrier-damage
#15
Vu L Ngo, Hirohito Abo, Estera Maxim, Akihito Harusato, Duke Geem, Oscar Medina-Contreras, Didier Merlin, Andrew T Gewirtz, Asma Nusrat, Timothy L Denning
The gut epithelium acts to separate host immune cells from unrestricted interactions with the microbiota and other environmental stimuli. In response to epithelial damage or dysfunction, immune cells are activated to produce interleukin (IL)-22, which is involved in repair and protection of barrier surfaces. However, the specific pathways leading to IL-22 and associated antimicrobial peptide (AMP) production in response to intestinal tissue damage remain incompletely understood. Here, we define a critical IL-36/IL-23/IL-22 cytokine network that is instrumental for AMP production and host defense...
May 14, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29759817/enhancer-logic-and-mechanics-in-development-and-disease
#16
REVIEW
Ryan Rickels, Ali Shilatifard
Enhancers are distally located genomic cis-regulatory elements that integrate spatiotemporal cues to coordinate gene expression in a tissue-specific manner during metazoan development. Enhancer function depends on a combination of bound transcription factors and cofactors that regulate local chromatin structure, as well as on the topological interactions that are necessary for their activity. Numerous genome-wide studies concur that the vast majority of disease-associated variations occur within non-coding genomic sequences, in other words the 'cis-regulome', and this underscores their relevance for human health...
May 11, 2018: Trends in Cell Biology
https://www.readbyqxmd.com/read/29757611/simple-synthetic-molecular-hydrogels-from-self-assembling-alkylgalactonamides-as-scaffold-for-3d-neuronal-cell-growth
#17
Anaïs Chalard, Laurence Vaysse, Pierre Joseph, Laurent Malaquin, Sandrine Souleille, Barbara Lonetti, Jean-Christophe Sol, Isabelle Loubinoux, Juliette Fitremann
In this work, we demonstrated that the hydrogel obtained from a very simple and single synthetic molecule, N-heptyl-galactonamide was a suitable scaffold for the growth of neuronal cells in 3D. We evidenced by confocal microscopy the presence of the cells into the gel up to a depth of around 200 μm, demonstrating that the latter was permissive to cell growth and enabled a true 3D colonization and organization. It also supported successfully the differentiation of adult human neuronal stem cells (hNSCs) into both glial and neuronal cells and the development of a really dense neurofilament network...
May 14, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29754405/ghl1l1-affects-cell-fate-specification-by-regulating-ghpin1-mediated-auxin-distribution
#18
Jiao Xu, Xiyan Yang, Baoqi Li, Lin Chen, Ling Min, Xianlong Zhang
Auxin is as an efficient initiator and regulator of cell fate during somatic embryogenesis (SE), but the molecular mechanisms and regulating networks of this process are not well understood. In this report, we analysed SE process induced by Leafy cotyledon1-like 1 (GhL1L1), a NF-YB subfamily gene specifically expressed in embryonic tissues in cotton. We also identified the target gene of GhL1L1, and its role in auxin distribution and cell fate specification during embryonic development was analysed. Overexpression of GhL1L1 accelerated embryonic cell formation, associated with an increased concentration of IAA in embryogenic calluses (ECs) and in the shoot apical meristem (SAM), corresponding to altered expression of the auxin transport gene GhPIN1...
May 13, 2018: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/29753912/biomimetic-soft-fibrous-hydrogels-for-contractile-and-pharmacologically-responsive-smooth-muscle
#19
Yonghui Ding, Xin Xu, Sadhana Sharma, Michael Floren, Kurt Stenmark, Stephanie J Bryant, Corey P Neu, Wei Tan
The ability to assess changes in smooth muscle contractility and pharmacological responsiveness in normal or pathological-relevant vascular tissue environments is critical to enable vascular drug discovery. However, major challenges remain in both capturing the complexity of in vivo vascular remodeling and evaluating cell contractility in complex, tissue-like environments. Herein, we developed a biomimetic fibrous hydrogel with tunable structure, stiffness, and composition to resemble the native vascular tissue environment...
May 10, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29752437/caspase-mediated-cleavage-of-the-centrosomal-proteins-during-apoptosis
#20
Mi Young Seo, Kunsoo Rhee
The centrosome is the major microtubule-organizing center and plays important roles in intracellular transport, cellular morphology, and motility. In mitotic cells, centrosomes function as spindle poles to pull a set of chromosomes into daughter cells. In quiescent cells, primary cilia are originated from the centrosomes. Given its involvement in various cellular processes, it is little surprising that the organelle would also participate in apoptotic events. However, it remains elusive how the centrosome changes in structure and organization during apoptosis...
May 11, 2018: Cell Death & Disease
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