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https://www.readbyqxmd.com/read/29232798/-solitary-fibrous-tumor-of-the-kidney
#1
Masaomi Ikeda, Yusuke Sakata, Takashi Tachibana, Hideyuki Yamashita, Rikiya Takashima, Atsuko Hara, Shojiroh Morinaga, Akira Irie
A 59-year-old woman was referred to our hospital with the finding of an incidentaloma in her right kidney. Computed tomographyand magnetic resonance imaging showed a solid tumor, approximately8 cm in diameter, at the lower pole of the right kidney. Partial nephrectomy was performed without a renal vessel clamp. Histopathologically, fibroblast-like spindle cells were proliferating with rich collagenous fibers, and tumor cells were infiltrated into the renal parenchyma. The tumor cells were stained positive with CD34, CD99, and bcl-2...
November 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/29232694/hyperbranched-poly-%C3%AF%C2%B5-lysine-substrate-presenting-the-laminin-sequence-yigsr-induces-the-formation-of-spheroids-in-adult-bone-marrow-stem-cells
#2
Valeria Perugini, Steve T Meikle, Anna L Guildford, Matteo Santin
Unlike the fibroblast-like cells formed upon monolayer culture of human mesenchymal stem cells, the natural stem cell niche of the bone marrow and other types of tissues favours the formation of 3-dimensional (3D) cell clusters. The structuring and biological activity of these clusters are regulated by the contacts established by cells with both the basement membrane and neighbour cells and results in their asymmetric division and the consequent maintenance of both a stem population and a committed progeny...
2017: PloS One
https://www.readbyqxmd.com/read/29232436/cellular-versus-acellular-grafts-for-diabetic-foot-ulcers-altering-the-protocol-to-improve-recruitment-to-a-comparative-efficacy-trial
#3
Catherine N Tchanque-Fossuo, Sara E Dahle, Hadar Lev-Tov, Chin-Shang Li, R Rivkah Isseroff
Diabetic foot ulcers (DFUs) have a substantial impact on public health. The standard of care (SOC) for DFUs consists of a multidisciplinary approach involving glycemic control, wound care with debridement of necrotic tissue, application of a moist dressing, infection control, use of off-loading devices, and patient education. New therapeutic devices aim to target the extracellular matrix (ECM) that is impaired in DFU; however, there is insufficient data on the effectiveness of such therapies along with lack of evidence on their long-term effectiveness...
November 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/29232177/metformin-effects-on-metabolic-coupling-and-tumor-growth-in-oral-cavity-squamous-cell-carcinoma-coinjection-xenografts
#4
Patrick Tassone, Marina Domingo-Vidal, Diana Whitaker-Menezes, Zhao Lin, Megan Roche, Madalina Tuluc, Ubaldo Martinez-Outschoorn, Joseph Curry
Objective Many aggressive head and neck cancers contain 2 metabolically coupled tumor compartments: a glycolytic stromal compartment with low caveolin-1 (CAV1) and high monocarboxylate transporter 4 (MCT4) expression and a highly proliferative carcinoma cell compartment with high MCT1. Metabolites are shuttled by MCTs from stroma to carcinoma to fuel tumor growth. We studied the effect of carcinoma-fibroblast coinjection and metformin administration on a mouse model of head and neck squamous cell carcinoma...
December 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29231967/therapeutic-potential-of-porcine-bronchoalveolar-fluid-derived-mesenchymal-stromal-cells-in-a-pig-model-of-lps-induced-ali
#5
Mahesh Khatri, Levi Arthur Richardson
In this study, we isolated mesenchymal stromal (stem) cells (MSCs) from broncho-alveolar lavage fluid (BAL) of 2-6 week-old commercial pigs. BAL-MSCs displayed fibroblastic morphology and possessed self-renewal properties. Similar to bone-marrow MSCs, BAL-MSCs expressed mesenchymal markers and both cell types lacked the expression of hematopoetic markers. BAL-MSCs, when cultured in differentiation induction media, differentiated into adipocytes, osteocytes and chondrocytes. Next, we examined if BAL-MSCs have the ability to treat lipopolysaccharide (LPS)-induced acute lung injury (ALI) in a pig model...
December 12, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29231842/smell-of-cells-volatile-profiling-of-stem-and-non-stem-cell-proliferation
#6
Ann-Christin Bischoff, Peter Oertel, Pritam Sukul, Christian Rimmbach, Robert David, Jochen Schubert, Wolfram Miekisch
Bacterial and cell cultures are known to emit a large number of volatile organic compounds (VOCs). Conventional biochemical methods are often destructive, time-consuming and ex-pensive. In contrast, VOC analysis of headspace over cultures, may offer a non-destructive alternative to monitor cell proliferation and metabolism. VOC profiles from cultures of murine pluripotent stem cells and fibroblasts were assessed every 24 hours for 3 days. Pure cell media were measured as parallel controls. VOC analysis was highly standardized with respect to time of measurement and phases of cell growth...
December 12, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/29231289/a-cell-friendly-window-for-the-interaction-of-cells-with-hyaluronic-acid-poly-l-lysine-multilayers
#7
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/29230909/histatins-wound-healing-and-cell-migration
#8
Pedro Torres, Martín Castro, Montserrat Reyes, Vicente A Torres
Wounds in the oral mucosa heal faster and more efficiently than those in the skin, although the mechanisms underlying these differences are not completely clear. In the last 10 years, a group of salivary peptides, the histatins, have gained attention on behalf of their ability to improve several phases of the wound healing process. In addition to their roles as antimicrobial agents and in enamel maintenance, histatins elicit other biological effects, namely by promoting the migration of different cell types contained in the oral mucosa and in non-oral tissues...
December 12, 2017: Oral Diseases
https://www.readbyqxmd.com/read/29230844/cyclophilin-d-promotes-tubular-cell-damage-and-the-development-of-interstitial-fibrosis-in-the-obstructed-kidney
#9
Weiping Hou, Khai G Leong, Elyce Ozols, Greg H Tesch, David J Nikolic-Paterson, Frank Y Ma
Cyclophilin D (CypD) is an important component in mitochondrial-dependent tubular cell death in acute kidney injury. However, it is not known whether CypD contributes to tubular cell damage in chronic interstitial fibrosis. We investigated this question in the unilateral ureter obstruction (UUO) model of renal interstitial fibrosis. Groups of CypD-/- and wild type (WT) mice were killed 7 or 12 days after UUO surgery. The significant tubular cell apoptosis seen in WT UUO was significantly reduced in CypD-/- UUO based on TUNEL and cleaved caspase 3 staining...
December 12, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29230533/regulation-of-type-i-collagen-expression-by-microrna-29-following-ionizing-radiation
#10
Hiroyuki Yano, Ryoji Hamanaka, Miki Nakamura-Ota, Juan Juan Zhang, Noritaka Matsuo, Hidekatsu Yoshioka
Radiation-induced fibrosis (RIF) is thought to involve the excessive accumulation of collagen and other extracellular matrix components; previously, we reported that ionizing radiation increased the type I collagen expression and that transforming growth factor (TGF)-β was involved in this increase through activating its downstream mediator, Smad3. A recent study found that microRNAs (miRNAs)-small, noncoding sequences approximately 20 nucleotides long-negatively regulate the gene expression posttranscriptionally, and it has been suggested that miRNAs play essential roles in cellular processes, including fibrosis...
December 11, 2017: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/29230255/control-of-cell-proliferation-by-a-porous-chitosan-scaffold-with-multiple-releasing-capabilities
#11
Shu-Jyun Cai, Ching-Wen Li, Daphne Weihs, Gou-Jen Wang
The aim of this study was to develop a porous chitosan scaffold with long-acting drug release as an artificial dressing to promote skin wound healing. The dressing was fabricated by pre-freezing at different temperatures (-20 and -80 °C) for different periods of time, followed by freeze-drying to form porous chitosan scaffolds with different pore sizes. The chitosan scaffolds were then used to investigate the effect of the controlled release of fibroblast growth factor-basic (bFGF) and transforming growth factor-β1 (TGFβ1) on mouse fibroblast cells (L929) and bovine carotid endothelial cells (BEC)...
2017: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/29230099/the-effect-of-co-transplantation-of-nerve-fibroblasts-and-schwann-cells-on-peripheral-nerve-repair
#12
Yang Wang, Dong Li, Gangyang Wang, Lulu Chen, Jun Chen, Zhangyin Liu, Zhaofeng Zhang, Hua Shen, Yuqing Jin, Zunli Shen
Combinations of fibroblasts (Fbs) and corresponding epithelial cells have been widely used in many tissues, such as the skin and breast tissues, to augment tissue repair and remodeling. Recently, a large amount of new data has indicated that nerve Fbs play critical roles in Schwann cells (SCs) and axons in vitro. However, little is known regarding the effects of co-transplanting nerve Fbs and SCs on peripheral nerve repair in vivo. The aim of this study was to investigate the effect of co-transplanting sciatic nerve Fbs (SN-Fbs) and sciatic nerve SCs (SN-SCs) on nerve regeneration...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/29230096/fibroblast-growth-factor-receptor-2-fgfr2-mutation-related-syndromic-craniosynostosis
#13
REVIEW
Saïd C Azoury, Sashank Reddy, Vivek Shukla, Chu-Xia Deng
Craniosynostosis results from the premature fusion of cranial sutures, with an incidence of 1 in 2,100-2,500 live births. The majority of cases are non-syndromic and involve single suture fusion, whereas syndromic cases often involve complex multiple suture fusion. The fibroblast growth factor receptor 2 (FGFR2) gene is perhaps the most extensively studied gene that is mutated in various craniosynostotic syndromes including Crouzon, Apert, Pfeiffer, Antley-Bixler, Beare-Stevenson cutis gyrata, Jackson-Weiss, Bent Bone Dysplasia, and Seathre-Chotzen-like syndromes...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/29230065/the-toll-like-receptor-2-6-agonist-fsl-1-lipopeptide-therapeutically-mitigates-acute-radiation-syndrome
#14
Cathryn J Kurkjian, Hao Guo, Nathan D Montgomery, Ning Cheng, Hong Yuan, Joseph R Merrill, Gregory D Sempowski, W June Brickey, Jenny P-Y Ting
Risks of radiation exposure from nuclear incidents and cancer radiotherapy are undeniable realities. These dangers urgently compel the development of agents for ameliorating radiation-induced injuries. Biologic pathways mediated by myeloid differentiation primary response gene 88 (MyD88), the common adaptor for toll-like receptor (TLR) and Interleukin-1 receptor signaling, are critical for radioprotection. Treating with agonists prior to radiation enhances survival by activating TLR signaling, whereas radiomitigating TLR-activating therapeutics given after exposure are less defined...
December 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29229671/h3s10ph-broadly-marks-early-replicating-domains-in-interphase-escs-and-shows-reciprocal-antagonism-with-h3k9me2
#15
Carol C L Chen, Preeti Goyal, Mohammad M Karimi, Marie H Abildgaard, Hiroshi Kimura, Matthew C Lorincz
Phosphorylation of histone H3 at serine 10 (H3S10ph) by Aurora kinases plays an important role in mitosis; however, H3S10ph also marks regulatory regions of inducible genes in interphase mammalian cells, implicating mitosis-independent functions. Using the fluorescent ubiquitin-mediated cell cycle indicator (FUCCI), we found that 30% of the genome in interphase mouse embryonic stem cells (ESCs) is marked with H3S10ph. H3S10ph broadly demarcates gene-rich regions in G1 and is positively correlated with domains of early DNA replication timing (RT) but negatively correlated with H3K9me2 and lamin-associated domains (LADs)...
December 11, 2017: Genome Research
https://www.readbyqxmd.com/read/29229611/opposing-actions-of-fibroblast-and-cardiomyocyte-smad3-signaling-in-the-infarcted-myocardium
#16
Ping Kong, Arti V Shinde, Ya Su, Ilaria Russo, Bijun Chen, Amit Saxena, Simon J Conway, Jonathan M Graff, Nikolaos G Frangogiannis
Background -Transforming Growth Factor (TGF)-βs regulate a wide range of cellular responses by activating Smad-dependent and Smad-independent cascades. In the infarcted heart, Smad3 signaling is activated in both cardiomyocytes and interstitial cells. We hypothesized that cell-specific actions of Smad3 regulate repair and remodeling in the infarcted myocardium. Methods -In order to dissect cell-specific Smad3 actions in myocardial infarction, we generated mice with Smad3 loss in activated fibroblasts, or in cardiomyocytes...
December 11, 2017: Circulation
https://www.readbyqxmd.com/read/29229512/efficiency-of-resveratrol-loaded-sericin-nanoparticles-promising-bionanocarriers-for-drug-delivery
#17
Kunat Suktham, Thongchai Koobkobkruad, Tuksadon Wutikhun, Suvimol Surassmo
Sericin protein nanoparticles are a biocompatible, bio-viable class of nanocarriers gaining prominence in drug delivery system. This research aimed to investigate the suitability fabrication of silk protein (SP) nanoparticles for loading with resveratrol (RSV) via a solventless precipitation technique. The addition of 0.5% (w/v) pluronic surfactant proved optimal for SP nanoparticle fabrication, with obtained nanoparticles being spherical, mono-dispersed and having mean size of approximately 200-400 nm. All exhibited negative surface charges, the extent of which being dependent on the SP concentration, and were non-toxic to normal skin fibroblasts (CRL-2522)...
December 8, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29229458/the-effects-of-irrigants-on-the-survival-of-human-stem-cells-of-the-apical-papilla-including-endocyn
#18
Mark B Scott, Gregory S Zilinski, Timothy C Kirkpatrick, Van T Himel, Kent A Sabey, Thomas E Lallier
INTRODUCTION: Endocyn, a pH-neutral solution of hypochlorous acid and hypochlorite has been developed for use as an endodontic irrigant. The purpose of this study was to evaluate the effect of Endocyn on human periodontal ligament (PDL) fibroblasts, rat osteosarcoma cells (UMR-106), and stem cells of the apical papilla (SCAP) compared with other commonly used endodontic irrigants. METHODS: To determine cytotoxicity, cells were exposed to various concentrations of Endocyn, 6% sodium hypochlorite (NaOCl), 17% EDTA, and 2% chlorhexidine for 10 minutes, 1 hour, or 24 hours...
December 8, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29229433/establishment-of-integration-free-induced-pluripotent-stem-cells-from-human-recessive-dystrophic-epidermolysis-bullosa-keratinocytes
#19
Wakana Matsumura, Yasuyuki Fujita, Chihiro Nakayama, Satoru Shinkuma, Shotaro Suzuki, Toshifumi Nomura, Riichiro Abe, Hiroshi Shimizu
BACKGROUND: Induced pluripotent stem cell (iPSC) technology enables patient-specific pluripotent stem cells to be derived from adult somatic cells without the use of an embryonic cell source. To date, recessive dystrophic epidermolysis bullosa (RDEB)-specific iPSCs have been generated from patients using integrating retroviral vectors. However, vector integration into the host genome can endanger the biosafety and differentiation propensities of iPSCs. Although various integration-free reprogramming systems have been reported, their utility in reprogramming somatic cells from patients remains largely undetermined...
December 1, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29229394/mir-628-5p-decreases-the-tumorigenicity-of-epithelial-ovarian-cancer-cells-by-targeting-at-fgfr2
#20
Ming Li, Zhimin Qian, Xiaoling Ma, Xiaolong Lin, Yanan You, Yiying Li, Tong Chen, Hua Jiang
Micro RNAs (miRNAs) are small non-coding RNAs which are 19-24 nucleotides in length. MiRNAs play a vital role in the whole process of tumour development, but how they influence the tumourigenecity of epithelial ovarian cancer (EOC)cells is rarely researched. In our study, it was verified that miR-628-5p decreased the stem like cell percentage of EOC cells by inducing their apoptosis. The animal experiments showed that miR-628-5p decreased the tumourigenecity of EOC cells. Besides, we found miR-628-5p targeted at and down-regulated the expression of fibroblast growth factor receptor 2 (FGFR2)...
December 8, 2017: Biochemical and Biophysical Research Communications
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