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https://www.readbyqxmd.com/read/28727221/scar-formation-following-excisional-and-burn-injuries-in-a-red-duroc-pig-model
#1
Britani N Blackstone, Jayne Y Kim, Kevin L McFarland, Chandan K Sen, Dorothy M Supp, J Kevin Bailey, Heather M Powell
Scar research is challenging because rodents do not naturally form excessive scars, and burn depth, size, and location cannot be controlled in human longitudinal studies. The female, red Duroc pig model has been shown to form robust scars with biological and anatomical similarities to human hypertrophic scars. To more closely mimic the mode of injury, recreate the complex chemical milieu of the burn wound environment and enhance scar development, an animal model of excessive burn-induced scarring was developed and compared with the more commonly used model, which involves excisional wounds created via dermatome...
July 20, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28697880/comparison-of-autologous-bone-marrow-and-adipose-tissue-derived-mesenchymal-stem-cells-and-platelet-rich-plasma-for-treating-surgically-induced-lesions-of-the-equine-superficial-digital-flexor-tendon
#2
A Romero, L Barrachina, B Ranera, A R Remacha, B Moreno, I de Blas, A Sanz, F J Vázquez, A Vitoria, C Junquera, P Zaragoza, C Rodellar
Several therapies have been investigated for equine tendinopathies, but satisfactory long term results have not been achieved consistently and a better understanding of the healing mechanism elicited by regenerative therapies is needed. The aim of this study was to assess the separate effects of autologous bone marrow (BM) and adipose tissue (AT) derived mesenchymal stem cells (MSCs), and platelet rich plasma (PRP), for treating lesions induced in the superficial digital flexor tendon (SDFT) of horses. Lesions were created surgically in both SDFTs of the forelimbs of 12 horses and were treated with BM-MSCs (six tendons), AT-MSCs (six tendons) or PRP (six tendons)...
June 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28692113/analysing-the-bioactive-makeup-of-demineralised-dentine-matrix-on-bone-marrow-mesenchymal-stem-cells-for-enhanced-bone-repair
#3
S J Avery, L Sadaghiani, A J Sloan, R J Waddington
Dentine matrix has proposed roles for directing mineralised tissue repair in dentine and bone; however, the range of bioactive components in dentine and specific biological effects on bone-derived mesenchymal stem cells (MSCs) in humans are less well understood. The aims of this study were to further elucidate the biological response of MSCs to demineralised dentine matrix (DDM) in enhancing wound repair responses and ascertain key contributing components. Dentine was obtained from human teeth and DDM proteins solubilised with ethylenediaminetetraacetic acid (EDTA)...
July 10, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28658958/collagen-affinity-coating-for-surface-binding-of-decorin-and-other-biomolecules-surface-characterization
#4
Marisa L Sylvester, Buddy D Ratner
The development of biomaterials that promote tissue reconstruction and regeneration can reduce the low level, chronic inflammation and encapsulation that impact the performance of today's medical devices. Specifically, in the case of implantable sensors, the host response often leads to poor device performance that discourages permanent implantation. Our goal is to present on medical implants bioactive molecules that can promote healing rather than scarring. Localized delivery of these molecules would also minimize the possibility of adverse tissue reactions elsewhere in the body...
June 28, 2017: Biointerphases
https://www.readbyqxmd.com/read/28654594/comparison-of-steroid-and-botulinum-toxin-type-a-monotherapy-with-combination-therapy-for-treating-human-hypertrophic-scars-in-an-animal-model
#5
Hung-Chang Chen, Cheng-I Yen, Shih-Yi Yang, Cheng-Jen Chang, Jui-Yung Yang, Shu-Yin Chang, Shiow-Shuh Chuang, Yen-Chang Hsiao
BACKGROUND: The authors evaluated the efficacy of a combined regimen of botulinum toxin type A (Botox) and a steroid (triamcinolone acetonide) for treating hypertrophic scars in comparison with the treatment with each drug alone. METHODS: Twenty excised human hypertrophic scar fragments obtained from surgically treated burn patients were divided into four groups: negative control (group A), triamcinolone alone (group B), Botox alone (group C), and a combination of triamcinolone and Botox (group D)...
July 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28653173/human-metaplastic-breast-carcinoma-and-decorin
#6
Pia Boström, Annele Sainio, Natalja Eigėlienė, Anne Jokilammi, Klaus Elenius, Ilkka Koskivuo, Hannu Järveläinen
Metaplastic breast carcinoma (MBC) is a rare subtype of invasive breast cancer and has poor prognosis. In general, cancers are heterogeneous cellular masses comprised of different cell types and their extracellular matrix (ECM). However, little is known about the composition of the ECM and its constituents in MBC. Decorin is a ubiquitous ECM macromolecule known of its oncosuppressive activity. As such, it provides an intriguing molecule in the development of novel therapeutics for different malignancies such as MBC...
June 26, 2017: Cancer Microenvironment: Official Journal of the International Cancer Microenvironment Society
https://www.readbyqxmd.com/read/28631095/decorin-gene-upregulation-mediated-by-an-adeno-associated-virus-vector-increases-intratumoral-uptake-of-nab-paclitaxel-in-neuroblastoma-via-inhibition-of-stabilin-1
#7
Zijun Zhen, Kaibin Yang, Litong Ye, Zhiyao You, Rirong Chen, Ying Liu
The availability of effective medication for the treatment of refractory or recurrent neuroblastoma remains limited. This study sought to investigate the effects of increased decorin (DCN) expression on the intratumoral uptake of nab-paclitaxel as a potential novel approach to NB. Correlation between the clinical characteristics of neuroblastoma and the expression of DCN, secreted protein acidic and rich in cysteine (SPARC) and stabilin-1 was evaluated. The anticancer effect of recombinant adeno-associated virus-DCN (rAAV-DCN) was assessed in vivo and in vitro...
June 20, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28607949/non-glycanated-decorin-is-a-drug-target-on-human-adipose-stromal-cells
#8
Alexes C Daquinag, Ali Dadbin, Brad Snyder, Xiaoping Wang, Aysegul A Sahin, Naoto T Ueno, Mikhail G Kolonin
Adipose stromal cells (ASCs) have been identified as a mesenchymal cell population recruited from white adipose tissue (WAT) by tumors and supporting cancer progression. We have previously reported the existence of a non-glycanated decorin isoform (ngDCN) marking mouse ASCs. We identified a peptide CSWKYWFGEC that binds to ngDCN and hence can serve as a vehicle for ASC-directed therapy delivery. We used hunter-killer peptides composed of CSWKYWFGEC and a pro-apoptotic moiety to deplete ASCs and suppress growth of mouse tumors...
September 15, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28599447/recombinant-fibromodulin-and-decorin-effects-on-nf-%C3%AE%C2%BAb-and-tgf%C3%AE-1-in-the-4t1-breast-cancer-cell-line
#9
Ladan Dawoody Nejad, Alireza Biglari, Tiziana Annese, Domenico Ribatti
Constitutive activation of nuclear factor-κB (NF-κB) stimulates cell proliferation and metastasis, and inhibits apoptosis in breast cancer. Transforming growth factor-β (TGF-β) signaling pathway is deregulated in breast cancer progression and metastasis. The aim of the present study was to investigate the inhibitory effects of the two small leucine rich proteoglycans fibromodulin (Fmod) and decorin (Dcn), overexpressed using adenovirus gene transfer, on NF-κB-activity and TGF-β1-expression in the highly metastatic 4T1 breast cancer cell line...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28593712/human-adipose-tissue-derived-tenomodulin-positive-subpopulation-of-stem-cells-a-promising-source-of-tendon-progenitor-cells
#10
A I Gonçalves, P M Gershovich, M T Rodrigues, R L Reis, M E Gomes
Cell-based therapies are of particular interest for tendon and ligament regeneration given the low regenerative potential of these tissues. Adipose tissue is an abundant source of stem cells, which may be employed for the healing of tendon lesions. However, human adult multipotent adipose-derived stem cells (hASCs) isolated from the stromal vascular fraction (SVF) of adipose tissue originate highly heterogeneous cell populations that hinder their use in specific tissue-oriented applications. In this study, distinct subpopulations of hASCs were immunomagnetic separated and their tenogenic differentiation capacity evaluated in the presence of several growth factors (GFs), namely EGF, bFGF, TGF-β1 and PDGF-BB, that are well-known regulators of tendon development, growth and healing...
June 7, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28567416/negative-correlation-between-mir-200c-and-decorin-plays-an-important-role-in-the-pathogenesis-of-colorectal-carcinoma
#11
Ren-Yi Tang, Zun Wang, Hong-Qi Chen, Si-Bo Zhu
Aim. To demonstrate the regulatory role of miRNA in colorectal carcinoma (CRC) and reveal the transcript markers that may be associated with CRC clinical outcomes. Method. Herein, we analyzed both mRNA and miRNA gene expression profiles of 255 CRC tumor samples from The Cancer Genome Atlas project to reveal the regulatory association between miRNA and mRNA. Also, the potential role of gene coexpression network in CRC has been explored. Results. The negative correlation between miR-200c and DCN (Decorin) was calculated in CRC, indicating that DCN could be a potential target of miR-200c...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28562226/inhibition-of-pathological-phenotype-of-hypertrophic-scar-fibroblasts-via-coculture-with-adipose-derived-stem-cells
#12
Jingcheng Deng, Yuan Shi, Zhen Gao, Wenjie Zhang, Xiaoli Wu, Weigang Cao, Wei Liu
Hypertrophic scar (HS) is a dermal fibroproliferative disease characterized by fibroblast over-proliferation, overproduction, and deposition of the extracellular matrix. Growing evidence demonstrated that adipose-derived stem cells (ASCs) secrete a plethora of trophic and antifibrotic factors, which suppress inflammation and ameliorate fibrosis of different tissues. However, few studies investigate their effect on repressing HS activity. This study evaluated the suppressing effect of ASCs on HS fibroblast bioactivity and the possible mechanism via a coculture model...
July 3, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28554792/specificity-studies-on-proteases-for-dehairing-in-leather-processing-using-decorin-as-model-conjugated-protein
#13
S Shakilanishi, C Shanthi
Enzyme based dehairing of animal skins in leather processing is considered a greener alternative to conventional chemical based dehairing process. The specificity based screening of proteases would be an important criterion as it would help in removing hairs by acting particularly on the proteoglycans holding the hair to the bulb without damaging the other proteins. The present paper describes a comparative study of the specificity of a dehairing protease with non-dehairing one isolated from Bacillus sps. Dehairing protease was found to be trypsin-like, non-collagenolytic and non-keratinolytic enzyme whereas non-dehairing one was a metalloprotease with non-collagenolytic activity but specificity for soluble keratin...
May 26, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28530155/an-oncolytic-adenovirus-encoding-decorin-and-gm-csf-inhibits-tumor-growth-in-a-colorectal-tumor-model-by-targeting-pro-tumorigenic-signals-and-via-immune-activation
#14
Zhao Liu, Yuefeng Yang, Xiaoyan Zhang, Hao Wang, Weidong Xu, Hua Wang, FengJun Xiao, Zhigang Bai, Hongwei Yao, Xuemei Ma, Lan Jin, Chu-Tse Wu, Prem Seth, Zhongtao Zhang, Lisheng Wang
In advanced and metastatic stages of colorectal cancer (CRC), reduced sensitivity to conventional strategies is still a major obstacle to successful treatments. Decorin is an important regulator in the development and progression of various cancers. To examine if CRC patients have altered decorin levels, expression of decorin and its target genes, Met and vascular endothelial growth factor A (VEGFA) were analyzed in their tumors. Compared to normal tissues, decorin expression was reduced in CRC patients' tumors, while, there were increased Met and VEGFA levels...
May 20, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28500669/anti-m%C3%A3-llerian-hormone-signaling-is-influenced-by-follistatin-288-but-not-14-other-transforming-growth-factor-beta-superfamily-regulators
#15
Yui Kawagishi, Michael W Pankhurst, Yoshio Nakatani, Ian S McLennan
The hypothesis that, in contrast to other transforming growth factor-beta (TGFβ) superfamily ligands, the dose-response curve of Anti-Müllerian hormone (AMH) is unmodulated was tested by examining whether known TGFB superfamily modulators affect AMH signaling, using a P19/BRE luciferase reporter assay. AMHC and AMHN,C activated the reporter with an EC50 of approximately 0.5 nM. Follistatins (FS) produced concentration-dependent increases in AMHC - and AMHN,C -initiated reporter activity, with FS288 being more potent than FS315; however, the maximum bioactivity of AMH was not altered by either follistatin...
July 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28495756/cystic-fibrosis-transmembrane-conductance-regulator-mediates-tenogenic-differentiation-of-tendon-derived-stem-cells-and-tendon-repair-accelerating-tendon-injury-healing-by-intervening-in-its-downstream-signaling
#16
Yang Liu, Jia Xu, Liangliang Xu, Tianyi Wu, Yuxin Sun, Yuk-Wai Lee, Bin Wang, Hsiao-Chang Chan, Xiaohua Jiang, Jinfang Zhang, Gang Li
Tendons are a mechanosensitive tissue, which enables them to transmit to bone forces that are derived from muscle. Patients with tendon injuries, such as tendinopathy or tendon rupture, were often observed with matrix degeneration, and the healing of tendon injuries remains a challenge as a result of the limited understanding of tendon biology. Our study demonstrates that the stretch-mediated activation channel, cystic fibrosis transmembrane conductance regulator (CFTR), was up-regulated in tendon-derived stem cells (TDSCs) during tenogenic differentiation under mechanical stretching...
May 11, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28463693/natural-healing-inspired-collagen-targeting-surgical-protein-glue-for-accelerated-scarless-skin-regeneration
#17
Eun Young Jeon, Bong-Hyuk Choi, Dooyup Jung, Byeong Hee Hwang, Hyung Joon Cha
Skin scarring after deep dermal injuries is a major clinical problem due to the current therapies limited to established scars with poor understanding of healing mechanisms. From investigation of aberrations within the extracellular matrix involved in pathophysiologic scarring, it was revealed that one of the main factors responsible for impaired healing is abnormal collagen reorganization. Here, inspired by the fundamental roles of decorin, a collagen-targeting proteoglycan, in collagen remodeling, we created a scar-preventive collagen-targeting glue consisting of a newly designed collagen-binding mussel adhesive protein and a specific glycosaminoglycan...
July 2017: Biomaterials
https://www.readbyqxmd.com/read/28459201/altered-expression-of-small-leucine-rich-proteoglycans-decorin-biglycan-and-lumican-plausible-diagnostic-marker-in-urothelial-carcinoma-of-bladder
#18
Sandeep Appunni, Vivek Anand, Madhuram Khandelwal, Amlesh Seth, Sandeep Mathur, Alpana Sharma
Small leucine-rich proteoglycans are components of extracellular matrix that regulates neoplastic transformation. Among small leucine rich proteoglycans, Decorin, Biglycan and Lumican are most commonly implicated markers, and their expression is well studied in various malignancies. In this novel study, we have collectively evaluated expression of these three molecules in urothelial carcinoma of bladder. Thirty patients of confirmed untreated bladder cancer, 30 healthy controls for blood and 30 controls for adjacent non-tumour tissue were enrolled...
May 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28454729/activation-of-parathyroid-hormone-2-receptor-induces-decorin-expression-and%C3%A2-promotes-wound-repair
#19
Emi Sato, Ling-Juan Zhang, Robert A Dorschner, Christopher A Adase, Biswa P Choudhury, Richard L Gallo
In this study, we report that TIP39, a parathyroid hormone ligand family member that was recently identified to be expressed in the skin, can induce decorin expression and enhance wound repair. Topical treatment of mice with TIP39 accelerated wound repair, whereas TIP39-deficient mice had delayed repair that was associated with formation of abnormal collagen bundles. To study the potential mechanism responsible for the action of TIP39 in the dermis, fibroblasts were cultured in three-dimensional collagen gels, a process that results in enhanced decorin expression unless activated to differentiate to adipocytes, whereupon these cells reduce expression of several proteoglycans, including decorin...
April 26, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28426898/improving-myoblast-differentiation-on-electrospun-poly-%C3%AE%C2%B5-caprolactone-scaffolds
#20
Phammela N Abarzúa-Illanes, Cristina Padilla, Andrea Ramos, Mauricio Isaacs, Jorge Ramos-Grez, Hugo C Olguín, Loreto M Valenzuela
Polymer scaffolds are used as an alternative to support tissue regeneration when it does not occur on its own. Cell response on polymer scaffolds is determined by factors such as polymer composition, topology, and the presence of other molecules. We evaluated the cellular response of murine skeletal muscle myoblasts on aligned or unaligned fibers obtained by electrospinning poly(ε-caprolactone) (PCL), and blends with poly(lactic-co-glycolic acid) (PLGA) or decorin, a proteoglycan known to regulate myogenesis...
April 20, 2017: Journal of Biomedical Materials Research. Part A
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