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Mesenchymal stem cell

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https://www.readbyqxmd.com/read/28350869/in-vitro-skin-models-to-study-epithelial-regeneration-from-the-hair-follicle
#1
Nkemcho Ojeh, Baki Akgül, Marjana Tomic-Canic, Mike Philpott, Harshad Navsaria
The development of dermal equivalents (DEs) for the treatment of burns has contributed toward efficient wound closure. A collagen-glycosaminoglycan DE (C-GAG) grafted with hair follicles converted a full-thickness wound to partial-thickness resulting in complete wound closure and restored hair. In this study we compared the ability of both intact pilosebaceous units (PSU) or truncated hair follicles (THF) to regenerate a multilayered epidermis in vitro when implanted into de-epidermalized dermis (DED) or C-GAG with the epidermis generated in vivo using C-CAG...
2017: PloS One
https://www.readbyqxmd.com/read/28350842/combination-of-mesenchymal-stem-cell-injection-with-icariin-for-the-treatment-of-diabetes-associated-erectile-dysfunction
#2
Xiyou Wang, Chuanhai Liu, Yong Xu, Ping Chen, Yue Shen, Yansheng Xu, Yubo Zhao, Weihao Chen, Xinyu Zhang, Yun Ouyang, Yi Wang, Changliang Xie, Maojun Zhou, Cuilong Liu
The present study was aimed to examine whether icariin, a traditional Chinese medicine, could improve therapeutic effects of adipose derived mesenchymal stem cells (ADSCs) for diabetes-associated erectile dysfunction (DMED). DMED were induced in rats by intraperitoneal injection of streptozotocin and confirmed by erectile function measurement. Then, rats of diabetic ED were randomly divided to receive the treatment of saline, ADSCs, icariin or ADSCs combined with icariin respectively. Compared with the treatment by ADSCs or icariin alone, intracavernosum injection of ADSCs combined with the following daily gastric gavage of icariin significantly augmented the value of ICP and ICP/MAP (p<0...
2017: PloS One
https://www.readbyqxmd.com/read/28350668/regeneration-of-vascularized-corticocancellous-bone-and-diploic-space-using-muscle-derived-stem-cells-a-translational-biologic-alternative-for-healing-critical-bone-defects
#3
Denver Lough, Edward Swanson, Nikolai A Sopko, Christopher Madsen, Devin Miller, Howard Wang, Qiongyu Guo, Srinivas M Sursala, Anand R Kumar
BACKGROUND: Regeneration of functional bone substrate remains a priority in reconstructive surgery especially for patients suffering from complex skeletal defects. Efforts to develop implantable osteoinductive constructs and novel osteoconductive materials remain at the forefront of industry forces and product line development. Despite advancement in clinical practice and bone biology, cancellous autograft remains the gold standard for procedures requiring osteogenic mechanisms of healing...
April 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28346798/priming-adipose-stem-cells-with-tumor-necrosis-factor-alpha-preconditioning-potentiates-their-exosome-efficacy-for-bone-regeneration
#4
ZuFu Lu, YongJuan Chen, Colin Dunstan, Seyediman Roohani-Esfahani, Hala Zreiqat
Mesenchymal stem cells (MSCs) have been widely used for tissue repair and regeneration. However, the inherent drawbacks, including limited cell survival after cell transplantation, have hindered direct MSC transplantation for tissue repair and regeneration. The aim of this study was to investigate if exosomes isolated from MSCs can promote the proliferation and differentiation of human primary osteoblastic cells (HOBs) and be potentially used for bone tissue regeneration. We showed that adipose tissue-derived MSC (ASC)-derived exosomes (ASC-EXO) were able to promote the proliferation and osteogenic differentiation in HOBs; and the trophic effects of ASC-EXO on HOBs were further harnessed when ASCs were preconditioned with tumor necrosis factor-alpha (TNF-α) for 3 days, which mimics the acute inflammatory phase upon bone injury...
March 23, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28346797/substituted-borosilicate-glasses-with-improved-osteogenic-capacity-for-bone-tissue-engineering
#5
João S Fernandes, Piergiorgio Gentile, Aileen Crawford, Ricardo A Pires, Paul V Hatton, Rui L Reis
Borosilicate bioactive glasses (BBGs) have shown the capacity to promote higher formation of new bone when compared with silicate bioactive glasses. Herein, we assessed the capacity of BBGs to induce osteogenic differentiation of bone marrow mesenchymal stem cells (BM-MSCs) as a function of their substituted divalent cations (Mg(2+), Ca(2+), Sr(2+)). To this purpose, we synthesized BBG particles by melt quenching. The cell viability, proliferation, and morphology (i.e., PrestoBlue(®), PicoGreen(®), and DAPI and Phalloidin stainings, respectively), as well as protein expression (i...
March 27, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28346796/harnessing-external-cues-development-and-evaluation-of-an-in-vitro-culture-system-for-osteochondral-tissue-engineering
#6
Deborah L Dorcemus, Eve O George, Caroline N Dealy, Syam P Nukavarapu
Over the last decade, engineered structures have been developed for osteochondral (OC) tissue regeneration. While the optimal structure design is yet to be determined, these scaffolds require in vitro evaluation before clinical use. However, the means by which complex scaffolds, such as OC scaffolds, can be tested are limited. Taking advantage of a mesenchymal stem cell's (MSC's) ability to respond to its surrounding we harness external cues, such as the cell's mechanical environment and delivered factors, to create an in vitro culture system for OC tissue engineering with a single cell source on a gradient yet integrated scaffold system...
March 24, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28346424/skp2-deficiency-restricts-the-progression-and-stem-cell-features-of-castration-resistant-prostate-cancer-by-destabilizing-twist
#7
D Ruan, J He, C-F Li, H-J Lee, J Liu, H-K Lin, C-H Chan
Castration-resistant prostate cancer (CRPC) remains a major clinical challenge because of the lack of effective targeted therapy for its treatment. The mechanism underlying how CRPC gains resistance toward hormone depletion and other forms of chemotherapy is poorly understood. Research on understanding the factors that drive these processes is desperately needed to generate new therapies to cure the disease. Here, we discovered a fundamental role of S-phase protein kinase 2 (Skp2) in the formation and progression of CRPC...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346367/transplantation-of-menstrual-blood-derived-mesenchymal-stem-cells-promotes-the-repair-of-lps-induced-acute-lung-injury
#8
Bingyu Xiang, Lu Chen, Xiaojun Wang, Yongjia Zhao, Yanling Wang, Charlie Xiang
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are associated with high morbidity and mortality. Menstrual blood-derived stem cells (MenSCs) have been shown to be good therapeutic tools in diseases such as ovarian failure and cardiac fibrosis. However, relevant studies of MenSCs in ALI have not yet proceeded. We hypothesized that MenSC could attenuate the inflammation in lipopolysaccharide (LPS)-induced ALI and promote the repair of damaged lung. ALI model was induced by LPS in C57 mice, and saline or MenSCs were administered via tail vein after four hours...
March 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28345852/layer-number-dependent-antibacterial-and-osteogenic-behaviors-of-graphene-oxide-electrophoretic-deposited-on-titanium
#9
Jiajun Qiu, Hao Geng, Donghui Wang, Shi Qian, Hongqin Zhu, Yuqin Qiao, Wenhao Qian, Xuanyong Liu
Graphene oxide has attracted widespread attentions in the biomedical fields due to its excellent biocompatibility. Herein we investigated the layer-number dependent antibacterial and osteogenic behaviors of graphene oxide in biointerfaces. Graphene oxide with different layer numbers was deposited on the titanium surfaces by cathodal electrophoretic deposition with varied deposition voltages. The initial cell adhesion and spreading, cell proliferation and osteogenic differentiation were observed from all the samples using rat bone mesenchymal stem cells...
March 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28345658/nephronectin-plays-critical-roles-in-sox2-expression-and-proliferation-in-dental-epithelial-stem-cells-via-egf-like-repeat-domains
#10
Chieko Arai, Keigo Yoshizaki, Kanako Miyazaki, Kan Saito, Aya Yamada, Xue Han, Keita Funada, Emiko Fukumoto, Naoto Haruyama, Tsutomu Iwamoto, Ichiro Takahashi, Satoshi Fukumoto
Tooth development is initiated by epithelial-mesenchymal interactions via basement membrane (BM) and growth factors. In the present study, we found that nephronectin (Npnt), a component of the BM, is highly expressed in the developing tooth. Npnt localizes in the BM on the buccal side of the tooth germ and shows an expression pattern opposite that of the dental epithelial stem cell marker Sox2. To identify the roles of Npnt during tooth development, we performed knockdown and overexpression experiments using ex vivo organ and dental epithelial cell cultures...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28345449/fabrication-of-pcl-plga-bcp-porous-scaffold-for-bone-tissue-engineering-applications
#11
Nguyen Thi Hiep, Huynh Chan Khon, Nguyen Dai Hai, Lee-Byong Taek, Vo Van Toi, Le Thanh Hung
In this study, biomimic porous polycaprolactone/poly (lactide-co-glycolide) loading biphasic tricalcium phosphate (PCL/PLGA-BCP) scaffolds were fabricated successfully by solvent evaporation method. The distribution of biphasic tricalcium phosphate (BCP) in polycaprolactone/poly (lactide-co-glycolide) (PCL/PLGA) scaffold was confirmed by micro-computed tomography (micro-CT) scanning, scanning electron microscope (SEM) observation and Energy-dispersive X-ray Spectroscopy (EDS) analysis. The hydrophilicity of the scaffolds was confirmed by contact angle measurement...
March 26, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28345002/cxcl12-promotes-stem-cell-recruitment-and-uterine-repair-after-injury-in-asherman-s-syndrome
#12
Gulcin Sahin Ersoy, Masoumeh Majidi Zolbin, Emine Cosar, Irene Moridi, Ramanaiah Mamillapalli, Hugh S Taylor
Asherman's syndrome is an acquired condition of uterine fibrosis and adhesions in response to injury that adversely affects fertility and pregnancy. We have previously demonstrated that bone marrow-derived mesenchymal stem cells (BMDSCs) contribute to uterine repair after injury and that stem cells supplementation improves fertility. Here, we demonstrate that CXCL12 is the chemokine that mediates stem cell engraftment and functional improvement using a murine model of Asherman's syndrome. After uterine injury, we demonstrate that CXCL12 augmentation increased BMDSC engraftment and that the CXCL12 receptor (CXCR4) antagonist, ADM3100, blocked stem cell recruitment...
March 17, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28344826/impact-of-bone-marrow-derived-mesenchymal-stem-cells-on-remodeling-the-lung-injury-induced-by-lipopolysaccharides-in-mice
#13
Mouchira M Mohi El-Din, Laila A Rashed, Mohi A Mahmoud Haridy, Atef Mohamed Khalil, Mohamed A Mohamed Albadry
AIM: This study evaluated the potential of bone marrow derived mesenchymal stem cells (MSCs) to regulate cytokines and remodel the lung induced by lipopolysaccharide (LPS; O-antigen). MATERIALS & METHODS: A group of mice (n = 21) was inoculated intraperitoneally with one dose 0.1 ml containing 0.025 mg LPS/mouse, and another treated intravenously with one dose of labeling bone marrow derived MSCs at 7.5 × 10(5) cell/mouse 4 h after LPS injection. All animals were sacrificed on the 1st, 7th and 14th days post-injection...
March 2017: Future Science OA
https://www.readbyqxmd.com/read/28344658/flightless-i-governs-cell-fate-by-recruiting-the-sumo-isopeptidase-senp3-to-distinct-hox-genes
#14
Arnab Nayak, Anja Reck, Christian Morsczeck, Stefan Müller
BACKGROUND: Despite recent studies on the role of ubiquitin-related SUMO modifier in cell fate decisions, our understanding on precise molecular mechanisms of these processes is limited. Previously, we established that the SUMO isopeptidase SENP3 regulates chromatin assembly of the MLL1/2 histone methyltransferase complex at distinct HOX genes, including the osteogenic master regulator DLX3. A comprehensive mechanism that regulates SENP3 transcriptional function was not understood. RESULTS: Here, we identified flightless-I homolog (FLII), a member of the gelsolin family of actin-remodeling proteins, as a novel regulator of SENP3...
2017: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/28344633/the-function-of-myostatin-in-the-regulation-of-fat-mass-in-mammals
#15
REVIEW
Bing Deng, Feng Zhang, Jianghui Wen, Shengqiang Ye, Lixia Wang, Yu Yang, Ping Gong, Siwen Jiang
Myostatin (MSTN), also referred to as growth and differentiation factor-8, is a protein secreted in muscle tissues. Researchers believe that its primary function is in negatively regulating muscle because a mutation in its coding region can lead to the famous double muscle trait in cattle. Muscle and adipose tissue develop from the same mesenchymal stem cells, and researchers have found that MSTN is expressed in fat tissues and plays a key role in adipogenesis. Interestingly, MSTN can exert a dual function, either inhibiting or promoting adipogenesis, according to the situation...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28344026/the-impact-of-various-scaffold-components-on-vascularized-bone-constructs
#16
Ahmad Eweida, Matthias Schulte, Oliver Frisch, Ulrich Kneser, Leila Harhaus
Bone tissue engineering is gaining more interest in the field of craniofacial surgery where continuous efforts are being made to improve the outcomes via modulation of the scaffold components. In an in vitro three dimensional (3D) culture, the effect of bone morphogenic protein 2 (BMP2, 60 μg/ml) and the effect of different cell seeding densities (0.25, 0.5, and 1 × 104) of rat mesenchymal stem cells seeded on nanocrystalline hydroxyapatite in silica gel matrix (Nanobone(®)) on the cell viability and differentiation were studied...
February 24, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28343898/comparison-of-human-mesenchymal-stromal-cells-from-four-neonatal-tissues-amniotic-membrane-chorionic-membrane-placental-decidua-and-umbilical-cord
#17
Anelise Bergmann Araújo, Gabrielle Dias Salton, Juliana Monteiro Furlan, Natália Schneider, Melissa Helena Angeli, Álvaro Macedo Laureano, Lúcia Silla, Eduardo Pandolfi Passos, Ana Helena Paz
BACKGROUND: Mesenchymal stromal cells (MSCs) are being investigated as a potential alternative for cellular therapy. This study was designed to compare the biological characteristics of MSCs isolated from amniotic membrane (A-MSCs), chorionic membrane (C-MSCs), placental decidua (D-MSCs) and umbilical cord (UC-MSCs) to ascertain whether any one of these sources is superior to the others for cellular therapy purposes. METHODS: MSCs were isolated from amniotic membrane, chorionic membrane, umbilical cord and placental decidua...
March 23, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28343075/an-update-on-application-of-nanotechnology-and-stem-cells-in-spinal-cord-injury-regeneration
#18
REVIEW
Kazem Nejati-Koshki, Yousef Mortazavi, Younes Pilehvar-Soltanahmadi, Sumit Sheoran, Nosratollah Zarghami
Spinal cord injury (SCI) is damage to the spinal cord that leads to sudden loss of motor and autonomic function and sensory under the level of the injury. The pathophysiological advancement of SCI is divided into two categories: primary injury and secondary injury. Due to the loss of motor, sensory, or cognitive function, a patient's quality of life is likely reduced and places a great burden on society in order to supply health care costs. Therefore, it is important to develop suitable therapeutic strategies for SCI therapy...
March 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28342084/the-transplantation-of-mesenchymal-stem-cells-derived-from-unconventional-sources-an-innovative-approach-to-multiple-sclerosis-therapy
#19
REVIEW
Sabrina Giacoppo, Placido Bramanti, Emanuela Mazzon
In recent years, in the effort to find a potential innovative therapy for multiple sclerosis (MS), researchers focused on transplantation of mesenchymal stem cells (MSCs) due to their well-recognized ability to suppress inflammatory/autoimmune responses and exert neuroregenerative properties. MSCs are a heterogeneous subset of pluripotent non-hematopoietic stromal cells that can be isolated from many different adult tissues, characterized by the capability to differentiate into various cell lineages, and to translocate into damaged areas, providing immunomodulatory effects...
March 25, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28341962/tumour-suppressor-ep300-a-modulator-of-paclitaxel-resistance-and-stemness-is-downregulated-in-metaplastic-breast-cancer
#20
Muhammad Asaduzzaman, Stephanie Constantinou, Haoxiang Min, John Gallon, Meng-Lay Lin, Poonam Singh, Selina Raguz, Simak Ali, Sami Shousha, R Charles Coombes, Eric W-F Lam, Yunhui Hu, Ernesto Yagüe
PURPOSE: We have previously described a novel pathway controlling drug resistance, epithelial-to-mesenchymal transition (EMT) and stemness in breast cancer cells. Upstream in the pathway, three miRs (miR-106b, miR-93 and miR-25) target EP300, a transcriptional activator of E-cadherin. Upregulation of these miRs leads to the downregulation of EP300 and E-cadherin with initiation of an EMT. However, miRs regulate the expression of many genes, and the contribution to EMT by miR targets other than EP300 cannot be ruled out...
March 24, 2017: Breast Cancer Research and Treatment
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