keyword
MENU ▼
Read by QxMD icon Read
search

Fibronectin assembly

keyword
https://www.readbyqxmd.com/read/29310776/microtiter-assays-for-quantitation-of-assembly-of-plasma-and-cellular-fibronectin
#1
Bianca R Tomasini-Johansson, Deane F Mosher
Fibronectin (FN) is a plasma glycoprotein produced by hepatocytes that circulates at near micromolar concentration and assembles into extracellular matrix fibrils at cell surfaces along with locally produced cellular FN. We describe two microplate assays that quantify assembly of human FN by cells in monolayer culture. One assay measures fluorescence due to incorporation of ALEXA488-plasma FN into matrices of fibroblasts and has been used successfully in high-throughput screens. The other measures fluorescence due to binding of fluorochrome-labeled antibody to the EDA domain of cellular FN synthesized and deposited by various cell types...
2018: Methods in Cell Biology
https://www.readbyqxmd.com/read/29283341/regulation-of-posterior-body-and-epidermal-morphogenesis-in-zebrafish-by-localized-yap1-and-wwtr1
#2
David Kimelman, Natalie L Smith, Jason Kuan Han Lai, Didier Yr Stainier
The vertebrate embryo undergoes a series of dramatic morphological changes as the body extends to form the complete anterior-posterior axis during the somite-forming stages. The molecular mechanisms regulating these complex processes are still largely unknown. We show that the Hippo pathway transcriptional coactivators Yap1 and Wwtr1 are specifically localized to the presumptive epidermis and notochord, and play a critical and unexpected role in posterior body extension by regulating Fibronectin assembly underneath the presumptive epidermis and surrounding the notochord...
December 28, 2017: ELife
https://www.readbyqxmd.com/read/29280265/three-dimensional-cultured-tissue-constructs-that-imitate-human-living-tissue-organization-for-analysis-of-tumor-cell-invasion
#3
Soichi Iwai, Satoko Kishimoto, Yuto Amano, Akihiro Nishiguchi, Michiya Matsusaki, Akinori Takeshita, Mitsuru Akashi
Preventing cancer metastasis requires a thorough understanding of cancer cell invasion. These phenomena occur in human 3D living tissues. To this end, we developed a human cell-based three-dimensional (3D) cultured tissue constructs that imitate in vivo human tissue organization. We investigated whether our 3D-cell culture system can be used to analyze the invasion of human oral squamous cell carcinoma (OSCC) cells. The 3D-tissue structure consisted of five layers of normal human dermal fibroblasts along with human dermal lymphatic endothelial cell tubes and was generated by the cell accumulation technique and layer-by-layer assembly using fibronectin and gelatin...
December 27, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29273802/multiple-cryptic-binding-sites-are-necessary-for-robust-fibronectin-assembly-an-in-silico-study
#4
Christopher A Lemmon, Seth H Weinberg
The mechanism of assembly of the extracellular matrix protein fibronectin (FN) into elastic, insoluble fibrils is still poorly understood. FN fibrillogenesis requires cell-generated forces, which expose cryptic FN-FN binding sites buried in FN Type III domains. The number and location of cryptic binding sites have been debated, but experimental evidence suggests multiple domains may contain FN-FN binding sites. The requirement of cell-dependent forces to generate FN fibrils restricts investigation of the mechanism of assembly...
December 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29231289/a-cell-friendly-window-for-the-interaction-of-cells-with-hyaluronic-acid-poly-l-lysine-multilayers
#5
Narayanan Madaboosi, Katja Uhlig, Stephan Schmidt, Anna S Vikulina, Helmuth Möhwald, Claus Duschl, Dmitry Volodkin
Polyelectrolyte multilayers assembled from hyaluronic acid (HA) and poly-l-lysine (PLL) are most widely studied showing excellent reservoir characteristics to host molecules of diverse nature; however, thick (HA/PLL)n films are often found cell repellent. By a systematic study of the adhesion and proliferation of various cells as a function of bilayer number "n" a correlation with the mechanical and chemical properties of films is developed. The following cell lines have been studied: mouse 3T3 and L929 fibroblasts, human foreskin primary fibroblasts VH-Fib, human embryonic kidney HEK-293, human bone cell line U-2-OS, Chinese hamster ovary CHO-K and mouse embryonic stem cells...
December 12, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/29223498/heparin-fibronectin-interactions-in-the-development-of-extracellular-matrix-insolubility
#6
Irene Raitman, Mia L Huang, Selwyn A Williams, Benjamin Friedman, Kamil Godula, Jean E Schwarzbauer
During extracellular matrix (ECM) assembly, fibronectin (FN) fibrils are irreversibly converted into a detergent-insoluble form which, through FN's multi-domain structure, can interact with collagens, matricellular proteins, and growth factors to build a definitive matrix. FN also has heparin/heparan sulfate (HS) binding sites. Using HS-deficient CHO cells, we show that the addition of soluble heparin significantly increased the amount of FN matrix that these cells assemble. Sulfated HS glycosaminoglycan (GAG) mimetics similarly increased FN assembly and demonstrated a dependence on GAG sulfation...
December 6, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29212004/investigating-focal-adhesion-substructures-by-localization-microscopy
#7
Hendrik Deschout, Ilia Platzman, Daniel Sage, Lely Feletti, Joachim P Spatz, Aleksandra Radenovic
Cells rely on focal adhesions (FAs) to carry out a variety of important tasks, including motion, environmental sensing, and adhesion to the extracellular matrix. Although attaining a fundamental characterization of FAs is a compelling goal, their extensive complexity and small size, which can be below the diffraction limit, have hindered a full understanding. In this study we have used single-molecule localization microscopy (SMLM) to investigate integrin β3 and paxillin in rat embryonic fibroblasts growing on two different extracellular matrix-representing substrates (i...
December 5, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/29129979/hair-germ-model-in-vitro-via-human-postnatal-keratinocyte-dermal-papilla-interactions-impact-of-hyaluronic-acid
#8
Ekaterina Kalabusheva, Vasily Terskikh, Ekaterina Vorotelyak
Hair follicle (HF) reconstruction in vitro is a promising field in alopecia treatment and human HF development research. Here, we combined postnatal human dermal papilla (DP) cells and skin epidermal keratinocytes (KCs) in a hanging drop culture to develop an artificial HF germ. The method is based on DP cell hair-inducing properties and KC self-organization. We evaluated two protocols of aggregate assembling. Mixed HF germ-like structures demonstrated the initiation of epithelial-mesenchymal interaction, including WNT pathway activation and expression of follicular markers...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29127068/mono-vs-multilayer-fibronectin-coatings-on-polar-hydrophobic-ionic-polyurethanes-altering-surface-interactions-with-human-monocytes
#9
Audrey Gossart, Kyle G Battiston, Adeline Gand, Emmanuel Pauthe, J Paul Santerre
Monocyte interactions with materials that are biofunctionalized with fibronectin (Fn) are of interest because of the documented literature which associates this protein with white blood cell function at implant sites. A degradable-polar hydrophobic ionic polyurethane (D-PHI), has been reported to promote an anti-inflammatory response from human monocytes. The aim of the current work was to study the influence of intrinsic D-PHI material chemistry on Fn adsorption (mono and multi-layer structures), and to investigate the influence of such chemistry on the structural state of the Fn, as well as the latter's influence on the activity of human monocytes on the protein coated substrates...
November 7, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29120817/guiding-morphogenesis-in-cell-instructive-microgels-for-therapeutic-angiogenesis
#10
A L Torres, S J Bidarra, M T Pinto, P C Aguiar, E A Silva, C C Barrias
Efficient cell delivery strategies are urgently needed to improve the outcome of cell-based pro-angiogenic therapies. This study describes the design of an injectable cell delivery platform, based on biomaterial-guided morphogenesis principles. Soft high-mannuronic acid alginate microgels, oxidized and functionalized with integrin-binding peptides, provided adequate biochemical/biomechanical cues for the co-assembly of mesenchymal stem cells and outgrowth endothelial cells (OEC) into pre-vascularized microtissues...
October 31, 2017: Biomaterials
https://www.readbyqxmd.com/read/29100092/mutations-in-fibronectin-cause-a-subtype-of-spondylometaphyseal-dysplasia-with-corner-fractures
#11
Chae Syng Lee, He Fu, Nissan Baratang, Justine Rousseau, Heena Kumra, V Reid Sutton, Marcello Niceta, Andrea Ciolfi, Guilherme Yamamoto, Débora Bertola, Carlo L Marcelis, Dorien Lugtenberg, Andrea Bartuli, Choel Kim, Julie Hoover-Fong, Nara Sobreira, Richard Pauli, Carlos Bacino, Deborah Krakow, Jillian Parboosingh, Patrick Yap, Ariana Kariminejad, Marie T McDonald, Mariana I Aracena, Ekkehart Lausch, Sheila Unger, Andrea Superti-Furga, James T Lu, Dan H Cohn, Marco Tartaglia, Brendan H Lee, Dieter P Reinhardt, Philippe M Campeau
Fibronectin is a master organizer of extracellular matrices (ECMs) and promotes the assembly of collagens, fibrillin-1, and other proteins. It is also known to play roles in skeletal tissues through its secretion by osteoblasts, chondrocytes, and mesenchymal cells. Spondylometaphyseal dysplasias (SMDs) comprise a diverse group of skeletal dysplasias and often manifest as short stature, growth-plate irregularities, and vertebral anomalies, such as scoliosis. By comparing the exomes of individuals with SMD with the radiographic appearance of "corner fractures" at metaphyses, we identified three individuals with fibronectin (FN1) variants affecting highly conserved residues...
November 2, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29080087/the-role-of-the-endoplasmic-reticulum-protein-calreticulin-in-mediating-tgf-%C3%AE-stimulated-extracellular-matrix-production-in-fibrotic-disease
#12
REVIEW
Benjamin Y Owusu, Kurt A Zimmerman, Joanne E Murphy-Ullrich
Endoplasmic reticulum (ER) stress is a key factor contributing to fibrotic disease. Although ER stress is a short-term adaptive response, with chronic stimulation, it can activate pathways leading to fibrosis. ER stress can induce TGF-β signaling, a central driver of extracellular matrix production in fibrosis. This review will discuss the role of an ER protein, calreticulin (CRT), which has both chaperone and calcium regulatory functions, in fibrosis. CRT expression is upregulated in multiple different fibrotic diseases...
October 28, 2017: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29062588/tlr4-ligands-selectively-synergize-to-induce-expression-of-il-8
#13
Lauren M Valenty, Christine M Longo, Carol Horzempa, Anthony Ambesi, Paula J McKeown-Longo
Objective: Dysfunctional remodeling of the extracellular matrix contributes to the formation of TLR-dependent feed forward loops that drive chronic inflammation. We have previously shown that two Type III domains of Fibronectin, FnEDA and FnIII-1c, cooperate to induce the synergistic release of interleukin 8 (IL-8) from dermal fibroblasts. We now identify steps in the TLR4 pathway where synergy can be demonstrated as well as additional kinases functioning in fibronectin activation of TLR4 signaling. We also evaluate the ligand and cell-type specificity of this synergistic response...
October 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/29042643/measuring-the-poisson-s-ratio-of-fibronectin-using-engineered-nanofibers
#14
John M Szymanski, Kairui Zhang, Adam W Feinberg
The extracellular matrix (ECM) is a fibrillar protein-based network, the physical and chemical properties of which can influence a multitude of cellular processes. Despite having an important role in cell and tissue signaling, a complete chemo-mechanical characterization of ECM proteins such as fibronectin (FN) is lacking. In this study, we engineered monodisperse FN nanofibers using a surface-initiated assembly technique in order to provide new insight into the elastic behavior of this material over large deformations...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29021221/cancer-associated-fibroblasts-promote-directional-cancer-cell-migration-by-aligning-fibronectin
#15
Begum Erdogan, Mingfang Ao, Lauren M White, Anna L Means, Bryson M Brewer, Lijie Yang, M Kay Washington, Chanjuan Shi, Omar E Franco, Alissa M Weaver, Simon W Hayward, Deyu Li, Donna J Webb
Cancer-associated fibroblasts (CAFs) are major components of the carcinoma microenvironment that promote tumor progression. However, the mechanisms by which CAFs regulate cancer cell migration are poorly understood. In this study, we show that fibronectin (Fn) assembled by CAFs mediates CAF-cancer cell association and directional migration. Compared with normal fibroblasts, CAFs produce an Fn-rich extracellular matrix with anisotropic fiber orientation, which guides the cancer cells to migrate directionally...
November 6, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28986537/counterbalancing-anti-adhesive-effects-of-tenascin-c-through-fibronectin-expression-in-endothelial-cells
#16
Agata Radwanska, Dominique Grall, Sébastien Schaub, Stéphanie Beghelli-de la Forest Divonne, Delphine Ciais, Samah Rekima, Tristan Rupp, Anne Sudaka, Gertraud Orend, Ellen Van Obberghen-Schilling
Cellular fibronectin (FN) and tenascin-C (TNC) are prominent development- and disease-associated matrix components with pro- and anti-adhesive activity, respectively. Whereas both are present in the tumour vasculature, their functional interplay on vascular endothelial cells remains unclear. We have previously shown that basally-oriented deposition of a FN matrix restricts motility and promotes junctional stability in cultured endothelial cells and that this effect is tightly coupled to expression of FN. Here we report that TNC induces FN expression in endothelial cells...
October 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28982683/mechanical-and-signaling-roles-for-keratin-intermediate-filaments-in-the-assembly-and-morphogenesis-of-mesendoderm-tissue-at-gastrulation
#17
Pooja R Sonavane, Chong Wang, Bette Dzamba, Gregory F Weber, Ammasi Periasamy, Douglas W DeSimone
Coordination of individual cell behaviors is a critical step in the assembly and morphogenesis of tissues. Xenopus mesendoderm cells migrate collectively along a fibronectin (FN) substrate at gastrulation but how the adhesive and mechanical forces required for these movements are generated and transmitted is unclear. Traction force microscopy (TFM) was used to establish that traction stresses are limited primarily to leading edge cells in mesendoderm explants and that these forces are balanced by intercellular stresses in follower rows...
October 5, 2017: Development
https://www.readbyqxmd.com/read/28966236/lysyl-oxidase-enhances-the-deposition-of-tropoelastin-through-the-catalysis-of-tropoelastin-molecules-on-the-cell-surface
#18
Fumiaki Sato, Ryo Seino-Sudo, Mami Okada, Hiroyasu Sakai, Tetsuro Yumoto, Hiroshi Wachi
The cross-linking of elastin by lysyl oxidase (LOX) family members is essential for the integrity and elasticity of elastic fibers, which play an important role in the characteristic resilience of various tissues. However, the temporal sequence of oxidation by LOX during elastic fiber formation is still incompletely understood. Here, we demonstrate that the cross-linking of tropoelastin molecules by LOX occurs concurrent with elastin deposition. Our data show that LOX deficiency or the inhibition of LOX enzyme activity leads to the loss of elastin deposition in skin fibroblast...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28931556/cancer-associated-fibroblasts-lead-tumor-invasion-through-integrin-%C3%AE-3-dependent-fibronectin-assembly
#19
Youmna Attieh, Andrew G Clark, Carina Grass, Sophie Richon, Marc Pocard, Pascale Mariani, Nadia Elkhatib, Timo Betz, Basile Gurchenkov, Danijela Matic Vignjevic
Cancer-associated fibroblasts (CAFs) are the most abundant cells of the tumor stroma. Their capacity to contract the matrix and induce invasion of cancer cells has been well documented. However, it is not clear whether CAFs remodel the matrix by other means, such as degradation, matrix deposition, or stiffening. We now show that CAFs assemble fibronectin (FN) and trigger invasion mainly via integrin-αvβ3. In the absence of FN, contractility of the matrix by CAFs is preserved, but their ability to induce invasion is abrogated...
November 6, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28887577/periostin-and-its-interacting-proteins-in-the-construction-of-extracellular-architectures
#20
REVIEW
Isao Kii, Harumi Ito
Periostin is a matricellular protein that is composed of a multi-domain structure with an amino-terminal EMI domain, a tandem repeat of four FAS 1 domains, and a carboxyl-terminal domain. These distinct domains have been demonstrated to bind to many proteins including extracellular matrix proteins (Collagen type I and V, fibronectin, tenascin, and laminin), matricellular proteins (CCN3 and βig-h3), and enzymes that catalyze covalent crosslinking between extracellular matrix proteins (lysyl oxidase and BMP-1)...
December 2017: Cellular and Molecular Life Sciences: CMLS
keyword
keyword
88588
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"