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https://www.readbyqxmd.com/read/27919959/dynamin-2-inhibitors-as-novel-therapeutic-agents-against-cervical-cancer-cells
#1
Yoo-Young Lee, Hye-Kyung Jeon, Jungeun Lee, Ji Eun Hong, In-Gu DO, Chel Hun Choi, Tae-Joong Kim, Byoung-Gie Kim, Duk-Soo Bae, Yong-Chul Kim, Jeong-Won Lee
AIM: We investigated the feasibility of dynamin 2 as a potential treatment target in cervical cancer cells. MATERIALS AND METHODS: We performed tissue microarray for dynamin 2 expression in 208 patients with early cervical cancer and in vitro in HeLa cells with dynamin 2 inhibitors MiTMAB, OcTMAB, Dynasore, and DD-6. RESULTS: Tumor size greater than 2 cm or tumor invasion of more than half of the entire cervix was associated with expression of dynamin 2 compared to no expression (p=0...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27919682/cyclosporine-a-inhibits-tgf-%C3%AE-2-induced-myofibroblasts-of-primary-cultured-human-pterygium-fibroblasts
#2
Sang Il Gum, Yeoun-Hee Kim, Jae-Chang Jung, Im Gyu Kim, Jun Seok Lee, Kyoo Won Lee, Young Jeung Park
Cyclosporine A (CsA), an immunomodulatory drug, and is increasingly used to treat moderate dry eye syndrome and ocular surface inflammation. However, any inhibitory effect on differentiation of fibroblasts to myofibroblasts remains unclear. Here, we show that the inhibitory effect of CsA on transforming growth factor-beta2 (TGF-β2)-induced myofibroblasts in primary cultured human pterygium fibroblasts. CsA significantly decreased mRNA and protein expression of myofibroblast-related markers including α-SMA, laminin, and fibronectin...
December 2, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27919568/all-trans-retinoic-acid-suppresses-the-adhering-ability-of-arpe-19-cells-via-mitogen-activated-protein-kinase-and-focal-adhesion-kinase
#3
Yo-Chen Chang, Yuh-Shin Chang, Ming-Chu Hsieh, Horng-Jiun Wu, Meng-Hsien Wu, Chia-Wei Lin, Wen-Chuan Wu, Ying-Hsien Kao
This study investigated the signaling mechanism underlying the anti-adhesive effect of all-trans retinoic acid (ATRA) on retinal pigment epithelial ARPE-19 cells. Adhesion kinetics with or without ATRA treatment were profiled by adhesion assay. Surface coating with type IV collagen, fibronectin, laminin, but not type I collagen, significantly enhanced adhesion and spreading of ARPE-19 cells, while ATRA at subtoxic doses (ranging from 10(-7) to 10(-6) M) profoundly suppressed the extracellular matrix-enhanced adhesion ability...
November 16, 2016: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/27914711/proteomic-based-research-strategy-identified-laminin-subunit-alpha-2-as-a-potential-urinary-specific-biomarker-for-the-medullary-sponge-kidney-disease
#4
Antonia Fabris, Maurizio Bruschi, Laura Santucci, Giovanni Candiano, Simona Granata, Alessandra Dalla Gassa, Nadia Antonucci, Andrea Petretto, Gian Marco Ghiggeri, Giovanni Gambaro, Antonio Lupo, Gianluigi Zaza
Medullary sponge kidney (MSK) disease, a rare kidney malformation featuring recurrent renal stones and nephrocalcinosis, continues to be diagnosed using expensive and time-consuming clinical/instrumental tests (mainly urography). Currently, no molecular diagnostic biomarkers are available. To identify such we employed a proteomic-based research strategy utilizing urine from 22 patients with MSK and 22 patients affected by idiopathic calcium nephrolithiasis (ICN) as controls. Notably, two patients with ICN presented cysts...
November 30, 2016: Kidney International
https://www.readbyqxmd.com/read/27914107/non-paraneoplastic-autoimmune-subepidermal-bullous-disease-associated-with-fatal-bronchiolitis-obliterans
#5
Mari Orime, Katsuhiro Tomiyama, Hideki Hashidate, Satoru Yoshida, Satoshi Hokari, Akiko Tsuda, Hisashi Yokoyama, Jun-Ichi Narita, Youhei Uchida, Takuro Kanekura, Riichiro Abe, Norito Ishii, Takashi Hashimoto, Kazuhiro Kawai
Bronchiolitis obliterans is a small-airway obstructive lung disease for which immunologically mediated pathogenesis is supposed. Frequent association of bronchiolitis obliterans with paraneoplastic pemphigus is well known, but its association with other autoimmune bullous diseases has not been reported except for a case of anti-laminin-332-type mucous membrane pemphigoid in a patient with chronic graft-versus-host disease. We report a case of non-paraneoplastic autoimmune subepidermal bullous disease associated with fatal bronchiolitis obliterans in a patient without transplantation...
December 3, 2016: Journal of Dermatology
https://www.readbyqxmd.com/read/27909717/restorative-effects-of-hydroxysafflor-yellow%C3%A2-a-on-hepatic-function-in-an-experimental-regression-model-of-hepatic-fibrosis-induced-by-carbon-tetrachloride
#6
Yanuo Li, Yan Shi, Yan Sun, Luying Liu, Xianyong Bai, Dong Wang, Hongxing Li
Hepatic fibrosis is a reversible pathological process, in which fibrotic tissue is excessively deposited in the liver during the repair process that follows hepatic injury. Early prevention or treatment of hepatic fibrosis has great significance on the treatment of chronic hepatic diseases. Hydroxysafflor yellow A (HSYA) is a water-soluble monomer extracted from safflower, which serves numerous pharmacological roles. However, it remains to be elucidated how HSYA regulates hepatic fibrogenesis. The aim of the present study was to reveal the possible mechanisms underlying the effects of HSYA on the prevention and treatment of hepatic fibrosis...
November 24, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27906078/four-week-rapamycin-treatment-improves-muscular-dystrophy-in-a-fukutin-deficient-mouse-model-of-dystroglycanopathy
#7
Steven J Foltz, Junna Luan, Jarrod A Call, Ankit Patel, Kristen B Peissig, Marisa J Fortunato, Aaron M Beedle
BACKGROUND: Secondary dystroglycanopathies are a subset of muscular dystrophy caused by abnormal glycosylation of α-dystroglycan (αDG). Loss of αDG functional glycosylation prevents it from binding to laminin and other extracellular matrix receptors, causing muscular dystrophy. Mutations in a number of genes, including FKTN (fukutin), disrupt αDG glycosylation. METHODS: We analyzed conditional Fktn knockout (Fktn KO) muscle for levels of mTOR signaling pathway proteins by Western blot...
June 2, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27906075/nuclear-bodies-reorganize-during-myogenesis-in-vitro-and-are-differentially-disrupted-by-expression-of-fshd-associated-dux4
#8
Sachiko Homma, Mary Lou Beermann, Bryant Yu, Frederick M Boyce, Jeffrey Boone Miller
BACKGROUND: Nuclear bodies, such as nucleoli, PML bodies, and SC35 speckles, are dynamic sub-nuclear structures that regulate multiple genetic and epigenetic processes. Additional regulation is provided by RNA/DNA handling proteins, notably TDP-43 and FUS, which have been linked to ALS pathology. Previous work showed that mouse cell line myotubes have fewer but larger nucleoli than myoblasts, and we had found that nuclear aggregation of TDP-43 in human myotubes was induced by expression of DUX4-FL, a transcription factor that is aberrantly expressed and causes pathology in facioscapulohumeral dystrophy (FSHD)...
December 1, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27906061/laminin-and-matrix-metalloproteinase-11-regulate-fibronectin-levels-in-the-zebrafish-myotendinous-junction
#9
Molly H Jenkins, Sarah S Alrowaished, Michelle F Goody, Bryan D Crawford, Clarissa A Henry
BACKGROUND: Remodeling of the extracellular matrix (ECM) regulates cell adhesion as well as signaling between cells and their microenvironment. Despite the importance of tightly regulated ECM remodeling for normal muscle development and function, mechanisms underlying ECM remodeling in vivo remain elusive. One excellent paradigm in which to study ECM remodeling in vivo is morphogenesis of the myotendinous junction (MTJ) during zebrafish skeletal muscle development. During MTJ development, there are dramatic shifts in the primary components comprising the MTJ matrix...
May 2, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27901020/structural-decoding-of-netrin-4-reveals-a-regulatory-function-towards-mature-basement-membranes
#10
Raphael Reuten, Trushar R Patel, Matthew McDougall, Nicolas Rama, Denise Nikodemus, Benjamin Gibert, Jean-Guy Delcros, Carina Prein, Markus Meier, Stéphanie Metzger, Zhigang Zhou, Jennifer Kaltenberg, Karen K McKee, Tobias Bald, Thomas Tüting, Paola Zigrino, Valentin Djonov, Wilhelm Bloch, Hauke Clausen-Schaumann, Ernst Poschl, Peter D Yurchenco, Martin Ehrbar, Patrick Mehlen, Jörg Stetefeld, Manuel Koch
Netrins, a family of laminin-related molecules, have been proposed to act as guidance cues either during nervous system development or the establishment of the vascular system. This was clearly demonstrated for netrin-1 via its interaction with the receptors DCC and UNC5s. However, mainly based on shared homologies with netrin-1, netrin-4 was also proposed to play a role in neuronal outgrowth and developmental/pathological angiogenesis via interactions with netrin-1 receptors. Here, we present the high-resolution structure of netrin-4, which shows unique features in comparison with netrin-1, and show that it does not bind directly to any of the known netrin-1 receptors...
November 30, 2016: Nature Communications
https://www.readbyqxmd.com/read/27896222/67-kda-laminin-receptor-67lr-in-normal-and-neoplastic-hematopoietic-cells-is-its-targeting-a-feasible-approach
#11
Nunzia Montuori, Ada Pesapane, Valentina Giudice, Bianca Serio, Francesca W Rossi, Amato De Paulis, Carmine Selleri
The 67 kDa laminin receptor (67LR) is a non-integrin cell surface receptor for laminin (LM) that derives from a 37 kDa precursor (37LRP). 67LR expression is increased in neoplastic cells and correlates with an enhanced invasive and metastatic potentialin many human solid tumors, recommending this receptor as a new promising target for cancer therapy. This is supported by in vivo studies showing that 67LR downregulation reduces tumour cell proliferation and tumour formation by inducing apoptosis. 67LR association with the anti-apoptotic protein PED/PEA-15 activates a signal transduction pathway, leading to cell proliferation and resistance to apoptosis...
November 2016: Translational Medicine @ UniSa
https://www.readbyqxmd.com/read/27884119/anti-lrp-lr-specific-antibody-igg1-is18-impedes-adhesion-and-invasion-of-pancreatic-cancer-and-neuroblastoma-cells
#12
Thalia M Rebelo, Carryn J Chetty, Eloise Ferreira, Stefan F T Weiss
BACKGROUND: Cancer has become a global burden due to its high incidence and mortality rates, with an estimated 14.1 million cancer cases reported worldwide in 2012 particularly as a result of metastasis. Metastasis involves two crucial steps: adhesion and invasion, and the non-integrin receptor; the 37-kDa/67-kDa laminin receptor precursor/ high affinity laminin receptor (LRP/LR) has been shown to be overexpressed on the surface of tumorigenic cells, thus being implicated in the enhancement of these two crucial steps...
November 24, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27879205/structure-of-protein-o-mannose-kinase-reveals-a-unique-active-site-architecture
#13
Qinyu Zhu, David Venzke, Ameya S Walimbe, Mary E Anderson, Qiuyu Fu, Lisa N Kinch, Wei Wang, Xing Chen, Nick V Grishin, Niu Huang, Liping Yu, Jack E Dixon, Kevin P Campbell, Junyu Xiao
The 'pseudokinase' SgK196 is a protein O-mannose kinase (POMK) that catalyzes an essential phosphorylation step during biosynthesis of the laminin-binding glycan on α-dystroglycan. However, the catalytic mechanism underlying this activity remains elusive. Here we present the crystal structure of Danio rerio POMK in complex with Mg(2+) ions, ADP, aluminum fluoride, and the GalNAc-β3-GlcNAc-β4-Man trisaccharide substrate, thereby providing a snapshot of the catalytic transition state of this unusual kinase...
November 23, 2016: ELife
https://www.readbyqxmd.com/read/27878981/migration-of-breast-cancer-cell-lines-in-response-to-pulmonary-laminin-332
#14
Philip M Carpenter, Priyanka Sivadas, Spencer S Hua, Cally Xiao, Alyssa B Gutierrez, Tuan Ngo, Paul D Gershon
Because tumor cell motility is a requirement for metastasis, we hypothesized that lung tissue harbors substances that induce tumor cell migration. MCF-7 breast carcinoma cells exposed to small airway epithelial cells and conditioned medium exhibited dose-dependent tumor cell migration. Among the extracellular matrix proteins in the conditioned medium identified by mass spectrometry, laminin 332 (LM332) had the greatest contribution to the migration of MCF-7 cells. Immunoblotting and immunohistochemistry for LM332-specific chains identified LM332 in the lung and in pulmonary epithelial cells...
November 22, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27878763/enhancement-of-neural-stem-cell-survival-proliferation-migration-and-differentiation-in-a-novel-self-assembly-peptide-nanofibber-scaffold
#15
Sajad Sahab Negah, Zabihollah Khaksar, Hadi Aligholi, Shahin Mohammad Sadeghi, Sayed Mostafa Modarres Mousavi, Hadi Kazemi, Ali Jahanbazi Jahan-Abad, Ali Gorji
Considerable efforts have been made to combine biologically active molecules into the self-assembling peptide in order to improve cells growth, survival, and differentiation. In this study, a novel three-dimensional scaffold (RADA4GGSIKVAV; R-GSIK) was designed by adding glycine and serine between RADA4 and IKVAV to promote the strength of the peptide. The cell adhesion, viability, proliferation, migration, and differentiation of rat embryonic neural stem cells (NSCs) in R-GSIK were investigated and compared to laminin-coated, two-dimensional, and Puramatrix cultures...
November 23, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27867342/the-family-of-crumbs-genes-and-human-disease
#16
REVIEW
Anne M Slavotinek
The family of vertebrate Crumbs proteins, homologous to Drosophila Crumbs (Crb), share large extracellular domains with epidermal growth factor-like repeats and laminin-globular domains, a single transmembrane domain, and a short intracellular C-terminus containing a single membrane proximal 4.1/ezrin/radixin/moesin-binding domain and PSD-95/Discs large/ZO-1-binding motifs. There are 3 Crb genes in humans - Crumbs homolog-1 (CRB1), Crumbs homolog-2 (CRB2), and Crumbs homolog-3 (CRB3). Bilallelic loss-of-function mutations in CRB1 cause visual impairment, with Leber's congenital amaurosis and retinitis pigmentosa, whereas CRB2 mutations are associated with raised maternal serum and amniotic fluid alpha feto-protein levels, ventriculomegaly/hydrocephalus, and renal disease, ranging from focal segmental glomerulosclerosis to congenital Finnish nephrosis...
October 2016: Molecular Syndromology
https://www.readbyqxmd.com/read/27865067/laminin-modified-and-aligned-phbv-peo-nanofibrous-nerve-conduits-promote-peripheral-nerve-regeneration
#17
Xiao-Feng Zhang, Hai-Xia Liu, Lazarus Santiago Ortiz, Zhong-Dang Xiao, Ning-Ping Huang
Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) has received much attention for its biodegradability and biocompatibility, characteristics which are required in tissue engineering. In this study, polyethylene oxide (PEO)-incorporated PHBV nanofibers with random or aligned orientation were obtained by electrospinning. For further use in vivo, the nanofiber films were made into nerve conduits after treated with NH3 plasma, which could improve the hydrophilicity of inner surfaces of nerve conduits and then facilitate laminin adsorption via electrostatic interaction for promoting cell adhesion and proliferation...
November 12, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27863864/laminin-5-and-insulin-like-growth-factor-ii-mrna-binding-protein-3-imp3-expression-in-preoperative-biopsy-specimens-from-oral-cancer-patients-their-role-in-neural-spread-risk-and-survival-stratification
#18
Achille Tarsitano, Sofia Asioli, Luca Morandi, Valentina Monti, Alberto Righi, Antonio Maria Morselli Labate, Elena Nardi, Maria Pia Foschini, Claudio Marchetti
Perineural invasion (PNI) hinders the ability to establish local control of oral squamous cell carcinoma (OSCC). To date, PNI can be evaluated only in surgical specimens and not in preoperative biopsy material, rendering timely therapeutic planning impossible. Insulin-like growth factor-II mRNA binding protein-3 (IMP3) expression appears to be of diagnostic and prognostic utility for many solid tumours, and laminin-5 expression in surgical specimens has been identified as a valid predictor of neural spread of head-and-neck neoplasms...
July 21, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27859941/adhesion-g-protein-coupled-receptors-and-extracellular-matrix-proteins-roles-in-myelination-and-glial-cell-development
#19
REVIEW
Paulomi Mehta, Xianhua Piao
BACKGROUND: Adhesion G protein-coupled receptors (aGPCRs) are a large family of transmembrane proteins that play important roles in many processes during development, primarily through cell-cell and cell-extracellular matrix (ECM) interactions. In the nervous system, they have been linked to the complex process of myelination, both in the central and peripheral nervous system. RESULTS: GPR126 is essential in Schwann cell-mediated myelination in the peripheral nervous system (PNS), while GPR56 is involved in oligodendrocyte development central nervous system (CNS) myelination...
November 18, 2016: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/27856309/hedgehog-signalling-acts-upstream-of-laminin-alpha1-transcription-in-the-zebrafish-paraxial-mesoderm
#20
Joseph Pickering, Vincent T Cunliffe, Freek Van Eeden, Anne-Gaëlle Borycki
Laminin-111 (α1β1γ1) is a member of the Laminin family of extra-cellular matrix proteins that comprises 16 members, components of basement membranes. Laminin-111, one of the first Laminin proteins synthesised during embryogenesis, is required for basement membrane deposition and has essential roles in tissue morphogenesis and patterning. Yet, the mechanisms controlling Laminin-111 expression are poorly understood. We generated a zebrafish transgenic reporter line that reproduces faithfully the expression pattern of lama1, the gene encoding Laminin α1, and we used this reporter line to investigate lama1 transcriptional regulation...
November 14, 2016: Matrix Biology: Journal of the International Society for Matrix Biology
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