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https://www.readbyqxmd.com/read/29331761/prevention-of-articular-cartilage-degeneration-in-a-rat-model-of-monosodium-iodoacetate-induced-osteoarthritis-by-oral-treatment-with-withaferin-a
#1
Dharmendra Choudhary, Sulekha Adhikary, Naseer Ahmad, Priyanka Kothari, Ashwni Verma, Prabodh Kumar Trivedi, Prabhat Ranjan Mishra, Ritu Trivedi
Withaferin A (WFA), a highly oxygenated withanolide is used for anti-osteoporotic, fracture healing, obesity control as medicine and dietary supplement in Ayurveda and Unani medicine but its potential remains to be investigate for the osteoarthritis studies. In the present study, chondro-protective effects of WFA, under in vitro and in vivo conditions were evaluated. In-vitro pharmacological activity of WFA was tested on rat articular chondrocytes through MTT, DPPH, different staining, FACS and translation studies...
January 10, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29331090/enhanced-chondrogenesis-of-mesenchymal-stem-cells-over-silk-fibroin-chitosan-chondroitin-sulfate-three-dimensional-scaffold-in-dynamic-culture-condition
#2
Parinita Agrawal, Krishna Pramanik, Varshini Vishwanath, Amit Biswas, Akalabya Bissoyi, Pradeep Kumar Patra
Chondroitin sulfate (Ch) is one of the main structural components of cartilage tissue, therefore, its presence in tissue engineered scaffold is expected to enhance cartilage regeneration. Previously, silk fibroin/chitosan (SF/CS) blend was proven to be a potential biomaterial for tissue development. In this study, the effect of Ch on physicochemical and biological properties of SF/CS blend was investigated and scaffolds with 0.8 wt% Ch was found to be favorable. The scaffolds possess pore size of 37-212 µm, contact angle 46...
January 13, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29326366/highly-proliferative-alpha-cell-related-islet-endocrine-cells-in-human-pancreata
#3
Carol J Lam, Aaron R Cox, Daniel R Jacobson, Matthew M Rankin, Jake A Kushner
The proliferative response of non-β islet endocrine cells in response to type 1 diabetes (T1D) remains undefined. We quantified islet endocrine cell proliferation in a large collection of non-diabetic control and T1D human pancreata across a wide range of ages. Surprisingly, islet endocrine cells with abundant proliferation were present in many adolescent and young adult T1D pancreata. But, the proliferative islet endocrine cells were also present in similar abundance within control samples. We queried the proliferating islet cells with antisera against various islet hormones...
January 11, 2018: Diabetes
https://www.readbyqxmd.com/read/29325895/the-vertebrate-limb-an-evolving-complex-of-self-organizing-systems
#4
REVIEW
Stuart A Newman, Tilmann Glimm, Ramray Bhat
The paired appendages (fins or limbs) of jawed vertebrates contain an endoskeleton consisting of nodules, bars and, in some groups, plates of cartilage, or bone arising from replacement of cartilaginous templates. The generation of the endoskeletal elements occurs by processes involving production and diffusion of morphogens, with, variously, positive and negative feedback circuits, adhesion, and receptor dynamics with similarities to the mechanism for chemical pattern formation proposed by Alan Turing. This review presents a unified interpretation of the evolution and functioning of these mechanisms...
January 8, 2018: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/29324788/esrp1-is-a-marker-of-mouse-fetal-germ-cells-and-differentially-expressed-during-spermatogenesis
#5
Shaghayegh Saeidi, Farnaz Shapouri, Robb U de Iongh, Franca Casagranda, Jessie M Sutherland, Patrick S Western, Eileen A McLaughlin, Mary Familari, Gary R Hime
ESRP1 regulates alternative splicing, producing multiple transcripts from its target genes in epithelial tissues. It is upregulated during mesenchymal to epithelial transition associated with reprogramming of fibroblasts to iPS cells and has been linked to pluripotency. Mouse fetal germ cells are the founders of the adult gonadal lineages and we found that Esrp1 mRNA was expressed in both male and female germ cells but not in gonadal somatic cells at various stages of gonadal development (E12.5-E15.5). In the postnatal testis, Esrp1 mRNA was highly expressed in isolated cell preparations enriched for spermatogonia but expressed at lower levels in those enriched for pachytene spermatocytes and round spermatids...
2018: PloS One
https://www.readbyqxmd.com/read/29323717/chondrogenic-differentiation-of-human-scalp-adipose-derived-stem-cells-in-polycaprolactone-scafold-and-using-freeze-thaw-freeze-method
#6
Rana Moradian Tehrani, Hamed Mirzaie, Javad Verdi, Amirhossein Sahebkar, Mahdi Noureddini, Rasoul Salehi, Behrang Alani, Mojtaba Kianmehr
Human adipose tissue has been identified as a viable alternative source for mesenchymal stem cells. SADSCs were isolated from human scalp biopsy and then were characterized by Flow cytometry. SADSCS expressed CD90, CD44, and CD105 but did not express CD45 surface marker. Growth factors were used for chondrogenesis induction. Histology and immunohistology methods and gene expression by real-time PCR 14 days after induced cells have shown the feature of chondrocytes in their morphology and extracellular matrix in both inducing patterns of combination and cycling induction...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29315687/patterning-of-the-hepato-pancreatobiliary-boundary-by-bmp-reveals-heterogeneity-within-the-murine-liver-bud
#7
Amrita Palaria, Jesse R Angelo, Taylor Guertin, Jesse Mager, Kimberly D Tremblay
During development, the endoderm initiates organ-restricted gene expression patterns in a spatiotemporally controlled manner. This process, termed induction, requires signals from adjacent mesodermal derivatives. Fibroblast Growth Factor (FGF) and Bone Morphogenetic Protein (BMP) emanating from the cardiac mesoderm and the septum transversum mesenchyme (STM), respectively, are believed to be simultaneously and uniformly required to directly induce hepatic gene expression from the murine endoderm. Using small molecule inhibitors of BMP signals during liver bud induction in the developing mouse embryo, we find that BMP signaling is not uniformly required to induce hepatic gene expression...
January 5, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29314362/a-small-population-of-resident-limb-bud-mesenchymal-cells-expresses-few-msc-associated-markers-but-the-expression-of-these-markers-is-increased-immediately-after-cell-culture
#8
Jessica Cristina Marín-Llera, Jesús Chimal-Monroy
Skeletal progenitors are derived from resident limb bud mesenchymal cells of the vertebrate embryos. However, it remains poorly understood if they represent stem cells, progenitors or multipotent mesenchymal stromal cells (MSC). Derived-MSC of different adult tissues under in vitro experimental conditions can differentiate into the same cellular lineages that are present in the limb. Here, comparing non-cultured versus cultured mesenchymal limb bud cells, we determined the expression of MSC-associated markers, the in vitro differentiation capacity and their gene expression profile...
January 4, 2018: Cell Biology International
https://www.readbyqxmd.com/read/29313321/the-matrix-synthesis-and-anti-inflammatory-effect-of-autologous-leukocyte-poor-platelet-rich-plasma-in-human-cartilage-explants
#9
Mario Simental-Mendía, Félix Vilchez-Cavazos, Rubén García-Garza, Jorge Lara-Arias, Roberto Montes-de-Oca-Luna, Salvador Said-Fernández, Herminia G Martínez-Rodríguez
OBJECTIVE: To determine the effects of autologous leukocyte-poor platelet-rich plasma (LP-PRP) on the expression of markers involved in cartilage-extracellular matrix production and inflammation in cartilage explants bearing osteoarthritis. MATERIALS AND METHODS: Cartilage explants and LP-PRP were obtained from 10 patients who underwent total knee arthroplasty. The explants were cultured in spinner flasks for 28 days in the presence of interleukin (IL)-1β and/or LP-PRP...
January 9, 2018: Histology and Histopathology
https://www.readbyqxmd.com/read/29313037/soluble-collagen-vi-treatment-enhances-mesenchymal-stem-cells-expansion-for-engineering-cartilage
#10
Piera Smeriglio, Jieun Lee, Nidhi Bhutani
Bone Marrow-derived mesenchymal stem cells (BM-MSC) are an attractive source for cell-based therapies in cartilage injury owing to their efficient differentiation into chondrocytes and their immune-suppressive abilities. However, their clinical use is hampered by a scarcity of cells leading to compromised efficacy. While expansion of human MSC ex vivo can potentially overcome the scarcity of cells, current methods lead to a rapid loss of the stem cell properties. In this study, we report soluble Collagen VI (cartilage pericellular matrix component) as a potential biologic that can expand the MSC population while maintaining the stem cell phenotype as confirmed by expression of the stem cell markers CD105 and CD90...
September 2017: Bioengineering & Translational Medicine
https://www.readbyqxmd.com/read/29306212/microrna-19a-promotes-cell-viability-and-migration-of-chondrocytes-via-up-regulating-sox9-through-nf-%C3%AE%C2%BAb-pathway
#11
Chuandong Yu, Yongkun Wang
BACKGROUND: Osteoarthritis (OA), as a degenerative disease, is a major problem in ageing populations. To better understand the underlying mechanisms in the pathogenesis of OA, this study was undertaken to investigate the role of microRNA (miR)-19a in chondrocytes. METHODS: Expression of the members of miR-17-92 cluster in synovium from OA patients and non-OA patients were measured by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). miR-19a was abnormal expressed in human chondrocyte line (CHON-001 and T-C/28 cells) and primary human chondrocytes by transient transfection...
January 3, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29304256/dynamics-ultrastructure-and-gene-expression-of-human-in-vitro-organized-testis-cells-from-testicular-sperm-extraction-biopsies
#12
Kathrein von Kopylow, Wolfgang Schulze, Andrea Salzbrunn, Matthias Schaks, Elke Schäfer, Beate Roth, Stefan Schlatt, Andrej-Nikolai Spiess
STUDY QUESTION: Is it possible to induce in-vitro reorganization of primary human testis cells from testicular sperm extraction (TESE) biopsies, maintain their long-term cultivation in a 2D system and identify cellular compositions? SUMMARY ANSWER: In-vitro reorganization of primary human testis cells from TESE biopsies and their long-term cultivation on uncoated cell culture dishes is feasible and the cellular compositions can be uncovered through gene expression and microscopic analyses...
January 3, 2018: Molecular Human Reproduction
https://www.readbyqxmd.com/read/29297135/stem-cell-factor-supports-migration-in-canine-mesenchymal-stem-cells
#13
Nathaly Enciso, Luciana L K Ostronoff, Guillermo Mejías, Leticia G León, María Luisa Fermín, Elena Merino, Cristina Fragio, Luis Avedillo, Concepción Tejero
Adult Mesenchymal Stem Cells (MSC) are cells that can be defined as multipotent cells able to differentiate into diverse lineages, under appropriate conditions. These cells have been widely used in regenerative medicine, both in preclinical and clinical settings. Initially discovered in bone marrow, MSC can now be isolated from a wide spectrum of adult and foetal tissues. Studies to evaluate the therapeutic potential of these cells are based on their ability to arrive to damaged tissues. In this paper we have done a comparative study analyzing proliferation, surface markers and OCT4, SOX9, RUNX2, PPARG genes expression in MSC cells from Bone marrow (BMMSC) and Adipose tissue (ASC)...
January 3, 2018: Veterinary Research Communications
https://www.readbyqxmd.com/read/29286152/a-promising-novel-formulation-for-articular-cartilage-regeneration-preclinical-evaluation-of-a-treatment-that-produces-sox9-overexpression-in-human-synovial-fluid-cells
#14
Ivan Delgado-Enciso, Juan Paz-Garcia, Alejandrina Rodriguez-Hernandez, Violeta M Madrigal-Perez, Ariana Cabrera-Licona, Alejandro Garcia-Rivera, Alejandro D Soriano-Hernandez, Jose L Cortes-Bazan, Hector R Galvan-Salazar, Jose Valtierra-Alvarez, Jose Guzman-Esquivel, Iram P Rodriguez-Sanchez, Margarita L Martinez-Fierro, Brenda Paz-Michel
Osteoarthritis (OA) is a chronic disorder of synovial joints, in which there is progressive softening and disintegration of the articular cartilage. OA is the most common form of arthritis, and is the primary cause of disability and impaired quality of life in the elderly. Despite considerable medical necessity, no treatment has yet been proven to act as a disease‑modifying agent that may halt or reverse the structural progression of OA. The replacement of the joint with a prosthesis appears to be the best option in the advanced stages of the disease...
December 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29286098/luteolin-inhibits-pancreatitis%C3%A2-induced-acinar%C3%A2-ductal-metaplasia-proliferation-and-epithelial%C3%A2-mesenchymal-transition-of-acinar-cells
#15
Xince Huang, Pravin Avinash Bhugul, Gang Fan, Tingting Ye, Shihao Huang, Shengjie Dai, Bicheng Chen, Mengtao Zhou
Luteolin, a flavone, has been demonstrated to have anti‑cancer properties. In the current study, the effects of luteolin on certain carcinogenesis‑associated changes induced by pancreatitis, which are significant risk factors for pancreatic cancer, were investigated. Male six‑week‑old C57BL6 mice used in the current study were divided into three groups; the control group, acute pancreatitis group and luteolin group. Intra‑peritoneal injection of cearulein was performed in the acute pancreatitis group and luteolin group to induce acute pancreatitis whereas the luteolin group received intra‑peritoneal injection of luteolin...
December 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29285169/mir-30b-regulates-chondrogenic-differentiation-of-mouse-embryo-derived-stem-cells-by-targeting-sox9
#16
Qingde Wa, Peiheng He, Shuai Huang, Jianwei Zuo, Xing Li, Jinsong Zhu, Song Hong, Guoqing Lv, Dongfeng Cai, Dongliang Xu, Xuenong Zou, Yi Liu
The present study aimed to investigate the mechanisms underlying microRNA (miRNA)-mediated regulation of chondrogenic differentiation. Mouse embryo-derived stem cells C3H10T1/2 were cultured and chondrogenic differentiation was induced using transforming growth factor-β3 (TGF-β3). In addition, miRNA expression profiles were detected via miRNA array analysis, and quantitative polymerase chain reaction was performed to verify the differentially expressed miRNAs. Furthermore, bioinformatics software was used to predict the putative targets and the prediction was validated by dual-luciferase reporter assays and western blot analysis...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29277327/extracellular-matrix-content-and-wnt-%C3%AE-catenin-levels-of-cartilage-determine-the-chondrocyte-response-to-compressive-load
#17
Heiko Praxenthaler, Elisabeth Krämer, Melanie Weisser, Nicole Hecht, Jennifer Fischer, Tobias Grossner, Wiltrud Richter
During osteoarthritis (OA)-development extracellular matrix (ECM) molecules are lost from cartilage, thus changing gene-expression, matrix synthesis and biomechanical competence of the tissue. Mechanical loading is important for the maintenance of articular cartilage; however, the influence of an altered ECM content on the response of chondrocytes to loading is not well understood, but may provide important insights into underlying mechanisms as well as supplying new therapies for OA. Objective here was to explore whether a changing ECM-content of engineered cartilage affects major signaling pathways and how this alters the chondrocyte response to compressive loading...
December 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29273440/pitx1-promotes-chondrogenesis-and-myogenesis-in-mouse-hindlimbs-through-conserved-regulatory-targets
#18
Jialiang S Wang, Carlos R Infante, Sungdae Park, Douglas B Menke
The PITX1 transcription factor is expressed during hindlimb development, where it plays a critical role in directing hindlimb growth and the specification of hindlimb morphology. While it is known that PITX1 regulates hindlimb formation, in part, through activation of the Tbx4 gene, other transcriptional targets remain to be elucidated. We have used a combination of ChIP-seq and RNA-seq to investigate enhancer regions and target genes that are directly regulated by PITX1 in embryonic mouse hindlimbs. In addition, we have analyzed PITX1 binding sites in hindlimbs of Anolis lizards to identify ancient PITX1 regulatory targets...
December 19, 2017: Developmental Biology
https://www.readbyqxmd.com/read/29248458/hepatic-stem-progenitor-cell-activation-differs-between-primary-sclerosing-and-primary-biliary-cholangitis
#19
Guido Carpino, Vincenzo Cardinale, Trine Folseraas, Diletta Overi, Annarosa Floreani, Antonio Franchitto, Paolo Onori, Nora Cazzagon, Pasquale Bartolomeo Berloco, Tom Hemming Karlsen, Domenico Alvaro, Eugenio Gaudio
Primary sclerosing cholangitis and primary biliary cholangitis are human primary cholangiopathies; these diseases are characterized by the damage of mature cholangiocytes and by the appearance of ductular reaction as the results of hepatic progenitor cell activation. The aims of this study were to evaluate differences in progenitor cell niche activation between these two human cholangiopathies. Human liver tissue was obtained from normal liver donors (n=5), primary sclerosing (n=20), and primary biliary cholangitis (n=20)...
December 14, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29245941/tumor-associated-macrophages-promote-tumor-metastasis-via-the-tgf-%C3%AE-sox9-axis-in-non-small-cell-lung-cancer
#20
Shuai Zhang, Dehai Che, Fang Yang, Chunling Chi, Hongxue Meng, Jing Shen, Li Qi, Fang Liu, Liyan Lv, Yue Li, Qingwei Meng, Junning Liu, Lihua Shang, Yan Yu
Tumor-associated macrophages (TAMs), most of which display the immunosuppressive M2 phenotype, affect the tumor microenvironment and promote progression and metastasis in lung carcinoma. In this study, we analyzed clinical non-small cell lung cancer (NSCLC) samples and found that high densities of TAMs were associated with a poor prognosis in NSCLC patients. Moreover, the number of TAMs present correlated positively with expression of sex determining region Y (SRY)-related high mobility group box 9 (SOX9) in NSCLC tissues...
November 21, 2017: Oncotarget
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