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https://www.readbyqxmd.com/read/28532087/the-repairing-of-full-thickness-skin-deficiency-and-its-biological-mechanism-using-decellularized-human-amniotic-membrane-as-the-wound-dressing
#1
Mengsheng Song, Weiqing Wang, Qihua Ye, Shizhong Bu, Zhisen Shen, Yabin Zhu
Human amniotic membrane (HAM) was a biocompatible scaffold with advantages of anti-inflammatory, low antigen, feasibility, tolerance and low cost. In our previous work, HAM was treated to be decellularized using surfactant, lipase and DNAase methods and the efficacy as an implantable biological mesh was verified after decellularization treatment. In this work, we used the previous protocol to decellularize the fresh HAM, and applied it to repair full-thickness skin defects with Sprague-Dawley rats as the test animals...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28529481/topical-ophthalmic-formulation-of-trichostatin-a-and-surr9-c84a-for-quick-recovery-post-alkali-burn-of-corneal-haze
#2
Kislay Roy, Chun Hei Antonio Cheung, Rupinder K Kanwar, Rajat Sandhir, Jagat R Kanwar
Alkali burn injury is a true ocular emergency of the conjunctiva and cornea that requires immediate precision. Lack of an immediate therapy can lead to a substantial damage in the ocular surface and anterior segment further causing visual impairment and disfigurement. We explored the regenerative capability of dominant negative survivin protein (SurR9-C84A) and histone deacetylase inhibitor trichostatin-A (TSA) in vivo, in a rat alkali burn model. A topical insult in rat eyes with NaOH led to degradation of the conjunctival and corneal epithelium...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28528475/effects-of-selenium-supplementation-on-gene-expression-levels-of-inflammatory-cytokines-and-vascular-endothelial-growth-factor-in-patients-with-gestational-diabetes
#3
Mehri Jamilian, Mansooreh Samimi, Faraneh Afshar Ebrahimi, Esmat Aghadavod, Robabeh Mohammadbeigi, Maryam Rahimi, Zatollah Asemi
Selenium is known to exert multiple beneficial effects including anti-inflammatory actions. The aim of the study was to evaluate the effects of selenium supplementation on gene expression levels of inflammatory cytokines and vascular endothelial growth factor (VEGF) in women with gestational diabetes (GDM). This randomized double-blind, placebo-controlled trial was carried out among 40 subjects diagnosed with GDM aged 18-40 years old. Subjects were randomly allocated into two groups to receive either 200 μg/day selenium supplements (n = 20) or placebo (n = 20) for 6 weeks...
May 21, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28527846/characterization-of-dental-pulp-myofibroblasts-in-rat-molars-after-pulpotomy
#4
Naoki Edanami, Nagako Yoshiba, Naoto Ohkura, Ryosuke Takeuchi, Aiko Tohma, Yuichiro Noiri, Kunihiko Yoshiba
INTRODUCTION: Myofibroblasts express alpha smooth muscle actin (α-SMA) and play a critical role in wound healing. Myofibroblast differentiation is controlled by the joint actions of transforming growth factor beta 1 (TGF-β1) and the extradomain A fibronectin splice variant (EDA-FN). Currently, the contribution of myofibroblasts to dental pulp healing is unknown. Therefore, we analyzed expressional characteristics of α-SMA-positive cells and investigated TGF-β1, EDA-FN, and α-SMA expression levels after pulpotomy to better understand dental pulp healing...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28525372/overexpression-of-a-novel-candidate-oncogene-kif14-correlates-with-tumor-progression-and-poor-prognosis-in-prostate-cancer
#5
Yixiang Zhang, Yeqing Yuan, Pei Liang, Zhaoxia Zhang, Xiaojing Guo, Ligang Xia, Yingying Zhao, Xing-Sheng Shu, Shengkun Sun, Ying Ying, Yingduan Cheng
Prostate cancer (PCa) is the second leading cause of death from cancer in men. The mechanism underlying tumorigenesis and development of PCa is largely unknown. Here, we identified Kinesin family member 14 (KIF14) as a novel candidate oncogene in PCa. We found that KIF14 was overexpressed in multiple PCa cell lines and primary PCa tissues. Knockdown of KIF14 in DU145 and PC3 prostate cancer cells suppressed cell proliferation, induced cell cycle arrest and apoptosis. Transcriptome analysis by RNA-sequencing demonstrated that KIF4 suppression led to transcriptional changes of genes involved in p53 and TGF-beta signaling pathway...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28523126/transforming-growth-factor-%C3%AE-a-master-regulator-of-the-gut-microbiota-and-immune-cell-interactions
#6
REVIEW
David Bauché, Julien C Marie
The relationship between host organisms and their microbiota has co-evolved towards an inter-dependent network of mutualistic interactions. This interplay is particularly well studied in the gastrointestinal tract, where microbiota and host immune cells can modulate each other directly, as well as indirectly, through the production and release of chemical molecules and signals. In this review, we define the functional impact of transforming growth factor-beta (TGF-β) on this complex interplay, especially through its modulation of the activity of local regulatory T cells (Tregs), type 17 helper (Th17) cells, innate lymphoid cells (ILCs) and B cells...
April 2017: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28518142/mir-130a-3p-attenuates-activation-and-induces-apoptosis-of-hepatic-stellate-cells-in-nonalcoholic-fibrosing-steatohepatitis-by-directly-targeting-tgfbr1-and-tgfbr2
#7
Yang Wang, Jinghua Du, Xuemin Niu, Na Fu, Rongqi Wang, Yuguo Zhang, Suxian Zhao, Dianxing Sun, Yuemin Nan
Nonalcoholic fibrosing steatohepatitis is a uniform process that occurs throughout nonalcoholic fatty liver disease (NAFLD). MicroRNAs (miRNAs) have been shown to be involved in the biological processes, but the role and molecular mechanism of miRNAs in NAFLD are not entirely clear. In this study, we observed a significant reduction in the expression of miR-130a-3p in livers of a mouse model with fibrosis induced by a methionine-choline-deficient diet, of NAFLD patients, and in activated hepatic stellate cells (HSCs)...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28513838/the-emerging-role-of-npnt-in-tissue-injury-repair-and-bone-homeostasis
#8
REVIEW
Youqiang Sun, Vincent Kuek, Heng Qiu, Jennifer Tickner, Leilei Chen, Haibin Wang, Wei He, Jiake Xu
Nephronectin (NPNT), a highly conserved extracellular matrix protein, plays an important role in regulating cell adhesion, differentiation, spreading and survival. NPNT protein belongs to epidermal growth factor (EGF)-like superfamily and exhibits several common structural determinants; including EGF-like repeat domains, MAM domain (Meprin, A5 Protein, and Receptor Protein-Tyrosine Phosphatase µ), RGD motif (Arg-Gly-Asp) and a coiled-coil domain. It regulates integrins-mediated signaling pathways via the interaction of its RGD motif with integrin α8β1...
May 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28512472/pulsed-electromagnetic-field-regulates-microrna-21-expression-to-activate-tgf-%C3%AE-signaling-in-human-bone-marrow-stromal-cells-to-enhance-osteoblast-differentiation
#9
Nagarajan Selvamurugan, Zhiming He, Daniel Rifkin, Branka Dabovic, Nicola C Partridge
Pulsed electromagnetic fields (PEMFs) have been documented to promote bone fracture healing in nonunions and increase lumbar spinal fusion rates. However, the molecular mechanisms by which PEMF stimulates differentiation of human bone marrow stromal cells (hBMSCs) into osteoblasts are not well understood. In this study the PEMF effects on hBMSCs were studied by microarray analysis. PEMF stimulation of hBMSCs' cell numbers mainly affected genes of cell cycle regulation, cell structure, and growth receptors or kinase pathways...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28508471/needleless-emulsion-electrospinning-for-the-regulated-delivery-of-susceptible-proteins
#10
Matej Buzgo, Eva Filova, Andrea Mickova Staffa, Michala Rampichova, Miroslav Doupnik, Karolina Vocetkova, Vera Lukasova, Radka Kolcun, David Lukas, Alois Necas, Evzen Amler
In the present work, we developed a novel needleless emulsion electrospinning technique which improves the production rate of the core/shell production process. The nanofibers are based on PCL as a continuous phase combined with a droplet phase based on Pluronic F-68 (PF-68). The PCL-PF-68 nanofibers show a time-regulated release of active molecules. Needleless emulsion electrospinning was used to encapsulate diverse set of compounds to the core phase (i.e. 5-DTAF-PF68, horseradish peroxidase (HRP), TRITC-dextran, insulin growth factor I (IGF-I), transforming growth factor beta (TGF-beta) and basic fibroblast growth factor (bFGF))...
May 16, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28507335/bnip3l-promotes-cardiac-fibrosis-in-cardiac-fibroblasts-through-ca-2-i-tgf-%C3%AE-smad2-3-pathway
#11
Weili Liu, Xinxing Wang, Zhusong Mei, Jingbo Gong, Lishuang Huang, Xiujie Gao, Yun Zhao, Jing Ma, Lingjia Qian
Fibrosis is an important, structurally damaging event that occurs in pathological cardiac remodeling, leading to cardiac dysfunction. BNIP3L is up-regulated in pressure overload-induced heart failure and has been reported to play an important role in cardiomyocyte apoptosis; however, its involvement in cardiac fibroblasts (CFs) remains unknown. We prove for the first time that the expression of BNIP3L is significantly increased in the CFs of rats undergoing pressure overload-induced heart failure. Furthermore, this increased BNIP3L expression was confirmed in cultured neonatal rat CFs undergoing proliferation and extracellular matrix (ECM) protein over-expression that was induced by norepinephrine (NE)...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28507001/p38-mapk-as-an-essential-regulator-of-dorsal-ventral-axis-specification-and-skeletogenesis-during-sea-urchin-development-a-re-evaluation
#12
Maria Dolores Molina, Magali Quirin, Emmanuel Haillot, Felipe Jimenez, Aline Chessel, Thierry Lepage
Dorsal-ventral axis formation in the sea urchin embryo relies on the asymmetrical expression of the TGF-beta Nodal. The p38-MAPK pathway has been proposed to be essential for dorsal-ventral axis formation by acting upstream of nodal expression. Herein, we report that, in contrast to previous studies that used pharmacological inhibitors of p38, manipulating the activity of p38 by genetic means has no obvious impact on morphogenesis. Instead, we discovered that p38 inhibitors strongly disrupt specification of all germ layers by blocking signalling from the Nodal receptor and by interfering with the ERK pathway...
May 15, 2017: Development
https://www.readbyqxmd.com/read/28504090/wound-healing-in-cutaneous-leishmaniasis-a-double-edged-sword-of-il-10-and-tgf-%C3%AE
#13
REVIEW
Amir Abdoli, Nahid Maspi, Fatemeh Ghaffarifar
Immune responses have a crucial role during the wound healing process in cutaneous leishmaniasis (CL). However, there are several paradoxes in immunity against CL. On the one hand, regulatory cytokines interleukin (IL)-10 and transforming growth factor beta (TGF-β) increase susceptibility to CL through suppression of several proinflammatory cytokines that require for defense against CL. On the other hand, these cytokines play a pivotal role in the acceleration of wound healing process. This review discusses about the dual role of IL-10 and TGF-β during the wound healing process and immunity against CL to offer a new insight about wound healing in CL...
April 2017: Comparative Immunology, Microbiology and Infectious Diseases
https://www.readbyqxmd.com/read/28503202/stabilization-of-foxp3-expression-by-crispr-dcas9-based-epigenome-editing-in-mouse-primary-t-cells
#14
Masahiro Okada, Mitsuhiro Kanamori, Kazue Someya, Hiroko Nakatsukasa, Akihiko Yoshimura
BACKGROUND: Epigenome editing is expected to manipulate transcription and cell fates and to elucidate the gene expression mechanisms in various cell types. For functional epigenome editing, assessing the chromatin context-dependent activity of artificial epigenetic modifier is required. RESULTS: In this study, we applied clustered regularly interspaced short palindromic repeats (CRISPR)-dCas9-based epigenome editing to mouse primary T cells, focusing on the Forkhead box P3 (Foxp3) gene locus, a master transcription factor of regulatory T cells (Tregs)...
2017: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/28502832/sexually-dimorphic-expression-in-developing-and-adult-gonads-shows-an-important-role-of-gonadal-soma-derived-factor-during-sex-differentiation-in-olive-flounder-paralichthys-olivaceus
#15
Yuezhong Liu, Wei Zhang, Xinxin Du, Jun Zhao, Xiaobing Liu, Xiaojing Li, Quanqi Zhang, Xubo Wang
Gonadal soma-derived factor (gsdf) is a new member of transforming growth factor beta (TGF-β) superfamily. As a teleost- and gonad-specific growth factor, gsdf has been indicated to play an important role in early germ cell development. However, little is known about its significance in germ cell development of olive flounder (Paralichthys olivaceus). In the present study, a 1338 bp gsdf gene was isolated from P. olivaceus for the first time. Bioinformatic analysis revealed that the genomic structure and synteny relationship of gsdf in teleosts were conserved...
May 11, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28501981/protective-effect-of-gentianine-a-compound-from-du-huo-ji-sheng-tang-against-freund-s-complete-adjuvant-induced-arthritis-in-rats
#16
Chen Wenjin, Wang Jianwei
The anti-inflammatory property of gentianine (GE) aroused our interest. To investigate the effect of GE on Freund's complete adjuvant (FCA)-induced arthritis in rats was the aim of this study. Adjuvant-induced arthritis (AA) was induced by the administration of 0.1 ml FCA in the surface of hind paw. Diclofenac sodium (DS) and Fasudil were administered as positive controls. Downregulation of cytokines including interleukin-6 (IL-6), interleukin-1 beta (IL-1β), and tumor necrosis factor-alpha (TNF-α) revealed anti-inflammatory effect of GE, which was consisted with pathological conditions of rat paws...
May 13, 2017: Inflammation
https://www.readbyqxmd.com/read/28498548/engineered-3d-cardiac-fibrotic-tissue-to-study-fibrotic-remodeling
#17
Amir Hossein Sadeghi, Su Ryon Shin, Janine C Deddens, Giuseppe Fratta, Serena Mandla, Iman K Yazdi, Gyan Prakash, Silvia Antona, Danilo Demarchi, Marc P Buijsrogge, Joost P G Sluijter, Jesper Hjortnaes, Ali Khademhosseini
Activation of cardiac fibroblasts into myofibroblasts is considered to play an essential role in cardiac remodeling and fibrosis. A limiting factor in studying this process is the spontaneous activation of cardiac fibroblasts when cultured on two-dimensional (2D) culture plates. In this study, a simplified three-dimensional (3D) hydrogel platform of contractile cardiac tissue, stimulated by transforming growth factor-β1 (TGF-β1), is presented to recapitulate a fibrogenic microenvironment. It is hypothesized that the quiescent state of cardiac fibroblasts can be maintained by mimicking the mechanical stiffness of native heart tissue...
May 12, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28495868/transforming-growth-factor-beta-1-tgf-%C3%AE-1-stimulates-collagen-synthesis-in-cultured-rainbow-trout-cardiac-fibroblasts
#18
Elizabeth F Johnston, Todd E Gillis
Cold acclimation of rainbow trout, Oncorhynchus mykiss, causes collagen to increase within the extracellular matrix (ECM) of the myocardium, while warm acclimation has the opposite effect. The mechanism responsible for this remodeling response is not known. In mammals, transforming growth factor beta-1 (TGF-β1) stimulates collagen deposition within the myocardial ECM. Therefore, we hypothesized that TGF-β1 regulates trout myocardial ECM turnover and predicted that TGF-β1 would induce collagen deposition in cultured rainbow trout cardiac fibroblasts...
May 11, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28493377/neonatal-myeloid-derived-suppressor-cells-show-reduced-apoptosis-and-immunosuppressive-activity-upon-infection-with-escherichia-coli
#19
Anja Leiber, Julian Schwarz, Natascha Köstlin, Bärbel Spring, Birgit Fehrenbach, Nenad Katava, Christian F Poets, Christian Gille
BACKGROUND: Susceptibility to infection during the neonatal period and reduced control of inflammation in neonates are attributed to immunosuppression persisting from fetal life. Myeloid-derived suppressor cells (MDSCs) are immature myeloid progenitors with suppressive activity and increased numbers in cord blood. We hypothesized that MDSCs contribute to innate host defence in neonates, paralleled by anti-inflammatory signalling. METHODS: Phagocytic activity, infection induced apoptosis, expression of B-cell lymphoma (Bcl)-2 family proteins, production of reactive oxygen species (ROS), cytokine production and T-cell suppression of neonatal granulocytic-MDSCs (G-MDSCs) after infection with Escherichia coli (E...
May 11, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28486025/efficacy-and-persistence-of-allogeneic-adipose-derived-mesenchymal-stem-cells-combined-with-hyaluronic-acid-in-osteoarthritis-after-intra-articular-injection-in-a-sheep-model
#20
Chenchen Feng, Xuan Luo, Na He, Huitang Xia, Xiaoteng Lv, Xue Zhang, Dan Li, Fei Wang, Jiaping He, Li Zhang, Xiangming Lin, Liping Lin, Huabin Yin, Jiyin He, Jinwu Wang, Wei Cao, Richard Wang, Guangdong Zhou, Wen Wang
Although a number of studies have reported efficacy of autologous adipose-derived mesenchymal stem cells (AD-MSCs) in treating osteoarthritis (OA), no reliable evidences demonstrate whether allogeneic AD-MSCs can efficiently block OA progression in a large animal model. The current study explored the efficacy and survival of allogeneic AD-MSCs combined with hyaluronic acid (HA) after intra-articular (IA) injection in a sheep OA model, which were conventionally established by anterior cruciate ligament resection and medial meniscectomy...
May 9, 2017: Tissue Engineering. Part A
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