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https://www.readbyqxmd.com/read/28214889/regulatory-role-of-mirna-375-in-expression-of-bmp15-gdf9-receptors-and-its-effect-on-proliferation-and-apoptosis-of-bovine-cumulus-cells
#1
Hongyan Chen, Chang Liu, Hao Jiang, Yan Gao, Mingqiang Xu, Jiawei Wang, Siyuan Liu, Yao Fu, Xulei Sun, Jiajun Xu, Jiabao Zhang, Lisheng Dai
BACKGROUND: Bone morphogenetic protein 15 (BMP15) and growth differentiation factor 9 (GDF9) are members of the transforming growth factor beta (TGF-β) superfamily. Through autocrine and paracrine mechanisms, these two factors can regulate cell differentiation, proliferation, and other functions in the ovary locally. Furthermore, GDF9 and BMP15 play vital roles in follicular growth, atresia, ovulation, fertilization, reproduction, and maintenance. Numerous studies have demonstrated a synergy between BMP15 and GDF9...
January 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214625/curcumin-functionalized-silk-biomaterials-for-anti-aging-utility
#2
Lei Yang, Zhaozhu Zheng, Cheng Qian, Jianbing Wu, Yawen Liu, Shaozhe Guo, Gang Li, Meng Liu, Xiaoqin Wang, David L Kaplan
Curcumin is a natural antioxidant that is isolated from turmeric (Curcuma longa) and exhibits strong free radical scavenging activity, thus functional for anti-aging. However, poor stability and low solubility of curcumin in aqueous conditions limit its biomedical applications. Previous studies have shown that the anti-oxidation activity of curcumin embedded in silk fibroin films could be well preserved, resulting in the promoted adipogenesis from human mesenchymal stem cells (hMSCs) cultured on the surface of the films...
February 2, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28196140/hypoxia-inducible-factors-regulate-the-transcription-of-the-sprouty2-gene-and-expression-of-the-sprouty2-protein
#3
Xianlong Gao, Kristin C Hicks, Paul Neumann, Tarun B Patel
Receptor Tyrosine Kinase (RTK) signaling plays a major role in tumorigenesis and normal development. Sprouty2 (Spry2) attenuates RTK signaling and inhibits processes such as angiogenesis, cell proliferation, migration and survival, which are all upregulated in tumors. Indeed in cancers of the liver, lung, prostate and breast, Spry2 protein levels are markedly decreased correlating with poor patient prognosis and shorter survival. Thus, it is important to understand how expression of Spry2 is regulated. While prior studies have focused on the post-translation regulation of Spry2, very few studies have focused on the transcriptional regulation of SPRY2 gene...
2017: PloS One
https://www.readbyqxmd.com/read/28196027/mk2461-a-multitargeted-kinase-inhibitor-suppresses-the-progression-of-pancreatic-cancer-by-disrupting-the-interaction-between-pancreatic-cancer-cells-and-stellate-cells
#4
Koetsu Inoue, Hideo Ohtsuka, Masanori Tachikawa, Fuyuhiko Motoi, Masahiro Shijo, Daisuke Douchi, Shuhei Kawasaki, Kei Kawaguchi, Kunihiro Masuda, Koji Fukase, Takeshi Naitoh, Yu Katayose, Shinichi Egawa, Michiaki Unno, Tetsuya Terasaki
OBJECTIVES: Platelet-derived growth factor receptor beta (PDGFRβ) and hepatocyte growth factor receptor (MET) expressed on pancreatic stellate cells (PSCs) are suggested as important components modulating the interactions between pancreatic cancer cells (PCCs) and PSCs. The objective of this study is to clarify the effect of MK2461, a multikinase inhibitor targeting MET and PDGFRβ, on the interaction between PCCs and PSCs. METHODS: In this study, we profiled the expression of receptor tyrosine kinases (including PDGFRβ and MET) in pancreatic cancer with quantitative targeted absolute proteomics using liquid chromatography tandem mass spectrometry...
February 14, 2017: Pancreas
https://www.readbyqxmd.com/read/28195144/concomitant-underexpression-of-tgfbr2-and-overexpression-of-htert-are-associated-with-poor-prognosis-in-cervical-cancer
#5
Hui Yang, Hongyan Zhang, Yahua Zhong, Qiaoli Wang, Lei Yang, Hong Kang, Xiaojia Gao, Haijun Yu, Conghua Xie, Fuxiang Zhou, Yunfeng Zhou
The human telomerase reverse transcriptase (hTERT) is highly expressed in a variety of tumors. The transforming growth factor beta receptor type II (TGFBR2) is a downstream protein of transforming growth factor beta (TGF-β) which suppresses telomerase activity. However, the relevance of survival to the expression of TGFBR2, hTERT or TGFBR2/hTERT has not been previously investigated in cervical cancer tissues. Our study showed that patients with low level of TGFBR2 were associated with poor prognosis (HR = 1...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28193226/hair-growth-promoting-effect-of-geranium-sibiricum-extract-in-human-dermal-papilla-cells-and-c57bl-6-mice
#6
William A Boisvert, Miri Yu, Youngbin Choi, Gi Hee Jeong, Yi-Lin Zhang, Sunghun Cho, Changsun Choi, Sanghyun Lee, Bog-Hieu Lee
BACKGROUND: Geranium sibiricum L. has been used as a medicinal plant to treat diarrhea, bacterial infection, and cancer in Bulgaria, Peru, and Korea. However, its hair growth-promoting effect was not investigated so far. This study examined the effects of Geranium sibiricum L. extract (GSE) on hair growth, using in vitro and in vivo models. METHODS: Antioxidant, proliferation and migration assay of GSE was performed with human dermal papilla cells (hDPCs). Hair-growth promoting effect was measured in animal model...
February 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28192115/substance-p-enhances-proliferation-and-paracrine-potential-of-adipose-derived-stem-cells-in%C3%A2-vitro
#7
Suna Kim, Jiyuan Piao, Youngsook Son, Hyun Sook Hong
Stem cells have tremendous promise to treat intractable diseases. Notably, adipose-derived stem cells (ADSCs) are actively being investigated because of ease of sampling and high repopulation capacity in vitro. ADSCs can exert a therapeutic effect through differentiation and paracrine potential, and these actions have been proven in many diseases, including cutaneous and inflammatory diseases. Transplantation of ADSCs necessitates therapeutic quantities and thus, long term ex vivo culture of ADSCs. However, this procedure can impair the activity of ADSCs and provoke cellular senescence, leading to low efficacy in vivo...
February 10, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28190783/a-retrospective-analysis-of-catheter-based-sources-in-intravascular-brachytherapy
#8
J DeCunha, C Janicki, S A Enger
PURPOSE: Coronary artery disease involves the deposition of plaque along the walls of a coronary artery leading to narrowed or blocked vessels (stenosis) and is one of the main causes of death in developed countries. Percutaneous transluminal coronary angioplasty (PTCA) is used to reverse stenosis. Restenosis (renarrowing) of the treated vessel is a major complication of PTCA. A metal mesh tube (stent) can be placed inside the vessel to prevent restenosis. Tissue stress incurred during PTCA and stenting can provoke neointimal cell proliferation leading to in-stent restenosis (ISR)...
February 10, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28188996/dual-delivery-of-growth-factors-with-coacervate-coated-poly-lactic-co-glycolic-acid-nanofiber-improves-neovascularization-in%C3%A2-a-mouse-skin-flap-model
#9
Min Suk Lee, Taufiq Ahmad, Jinkyu Lee, Hassan K Awada, Yadong Wang, Kyobum Kim, Heungsoo Shin, Hee Seok Yang
Random skin flaps are commonly used in plastic and reconstructive surgery for patients suffering from severe or large scale wounds or in facial reconstruction. However, skin flaps are sometimes susceptible to partial or complete necrosis at the distal parts of the flaps due to insufficient blood perfusion in the defected area. In order to improve neovascularization in skin flaps, we developed an exogenous growth factor (GF) delivery platform comprised of coacervate-coated poly(lactic-co-glycolic acid) (PLGA) nanofibers...
January 30, 2017: Biomaterials
https://www.readbyqxmd.com/read/28186678/gamma-secretase-inhibitor-ix-gsi-impairs-concomitant-activation-of-notch-and-wnt-beta-catenin-pathways-in-cd44-gastric-cancer-stem-cells
#10
Samarpita Barat, Xi Chen, Khac Cuong Bui, Przemyslaw Bozko, Julian Götze, Matthias Christgen, Till Krech, Nisar P Malek, Ruben R Plentz
Cancer stem cells (CSC) are associated with tumor resistance and are characterized in gastric cancer (GC). Studies have indicated that Notch and wnt-beta-catenin pathways are crucial for CSC development. Using CD44(+) CSCs, we investigated the role of these pathways in GC carcinogenesis. We performed cell proliferation, wound healing, invasion, tumorsphere, and apoptosis assays. Immunoblot analysis of downstream signaling targets of Notch and wnt-beta-catenin were tested after gamma-secretase inhibitor IX (GSI) treatment...
February 3, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28179017/thymosin-beta-10-is-a-key-regulator-of-tumorigenesis-and-metastasis-and-a-novel-serum-marker-in-breast-cancer
#11
Xin Zhang, Dong Ren, Ling Guo, Lan Wang, Shu Wu, Chuyong Lin, Liping Ye, Jinrong Zhu, Jun Li, Libing Song, Huanxin Lin, Zhenyu He
BACKGROUND: Thymosin beta 10 (TMSB10) has been demonstrated to be involved in the malignant process of many cancers. The purpose of this study was to determine the biological roles and clinical significance of TMSB10 in breast cancer and to identify whether TMSB10 might be used as a serum marker for the diagnosis of breast cancer. METHODS: TMSB10 expression was evaluated by immunohistochemical analysis (IHC) of 253 breast tumors and ELISA of serum from 80 patients with breast cancer...
February 8, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28178210/perindopril-induces-tsp-1-expression-in-hypertensive-patients-with-endothelial-dysfunction-in-chronic-treatment
#12
Valentina Buda, Minodora Andor, Lucian Petrescu, Carmen Cristescu, Dana Emilia Baibata, Mirela Voicu, Melania Munteanu, Ioana Citu, Calin Muntean, Octavian Cretu, Mirela Cleopatra Tomescu
Thrombospondin-1 (TSP-1) is a potent endogenous inhibitor of both physiological and pathological angiogenesis, widely studied as a target in drug development for treating cancer. Several studies performed in the cardiovascular field on TSP-1 are contradictory, the role of TSP-1 in the physiopathology of cardiovascular disorders (CVDs) being, for the moment, incompletely understood and may be due to the presence of several domains in its structure which can stimulate many cellular receptors. It has been reported to inhibit NO-mediated signaling and to act on the angiogenesis, tissue perfusion, endothelial cell proliferation, and homeostasis, so we aimed to quantify the effect Perindopril has on TSP-1 plasma levels in hypertensive patients with endothelial dysfunction in comparison with other antihypertensive drugs, such as beta blockers, calcium channel blockers, and diuretics, in a chronic treatment...
February 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28174310/the-antituberculosis-drug-ethambutol-selectively-blocks-apical-growth-in-cmn-group-bacteria
#13
Karin Schubert, Boris Sieger, Fabian Meyer, Giacomo Giacomelli, Kati Böhm, Angela Rieblinger, Laura Lindenthal, Nadja Sachs, Gerhard Wanner, Marc Bramkamp
: Members of the genus Mycobacterium are the most prevalent cause of infectious diseases. Mycobacteria have a complex cell envelope containing a peptidoglycan layer and an additional arabinogalactan polymer to which a mycolic acid bilayer is linked; this complex, multilayered cell wall composition (mAGP) is conserved among all CMN group bacteria. The arabinogalactan and mycolic acid synthesis pathways constitute effective drug targets for tuberculosis treatment. Ethambutol (EMB), a classical antituberculosis drug, inhibits the synthesis of the arabinose polymer...
February 7, 2017: MBio
https://www.readbyqxmd.com/read/28146239/combined-pi3k-akt-and-smad2-activation-promotes-corneal-endothelial-cell-proliferation
#14
Alfonso L Sabater, Enrique J Andreu, María García-Guzmán, Tania López, Gloria Abizanda, Victor L Perez, Javier Moreno-Montañés, Felipe Prósper
Purpose: The purpose of this study was to develop a culture method for expansion of corneal endothelial cells (CEC) based on the combined activation of PI3K/Akt and Smad2. Methods: Morphology, proliferation, and migration of cultured rabbit and nonhuman primate CEC were examined in the presence of the PI3K/Akt activators IGF-1 and heregulin beta in combination with the Smad2 activator activin A. Phenotypic characterization of CEC was performed at the RNA and protein levels...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28144955/hypothyroidism-in-utero-stimulates-pancreatic-beta-cell-proliferation-and-hyperinsulinaemia-in-the-ovine-fetus-during-late-gestation
#15
Shelley E Harris, Miles J De Blasio, Melissa A Davis, Amy C Kelly, Hailey M Davenport, F B Peter Wooding, Dominique Blache, David Meredith, Miranda Anderson, Abigail L Fowden, Sean W Limesand, Alison J Forhead
Development of pancreatic beta cell mass before birth is essential for normal growth of the fetus and for long-term control of carbohydrate metabolism in postnatal life. Thyroid hormones are also important regulators of fetal growth, and the present study tested the hypotheses that thyroid hormones promote beta cell proliferation in the fetal ovine pancreatic islets, and that growth retardation in hypothyroid fetal sheep is associated with reductions in pancreatic beta cell mass and circulating insulin concentration in utero...
January 31, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28139275/liver-x-receptor-activation-inhibits-pc-3-prostate-cancer-cells-via-the-beta-catenin-pathway
#16
Kuang Youlin, Zhang Li, He Weiyang, Kang Jian, Liang Siming, Gou Xin
BACKGROUND: Liver X receptors (LXRs) are nuclear receptors family of ligand-dependent transcription factors that play a crucial role in regulating cholesterol metabolism and inflammation. Recent studies show that LXR agonists exhibit anti-cancer activities in a variety of cancer cell lines including prostate. To further identify the potential mechanisms of LXRα activation on prostate cancer, we investigated the effect of LXR agonist T0901317 on PC3 prostate cancer cell and in which activity of beta-catenin pathway involved...
May 12, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28137808/two-novel-calcium-dependent-kinase-1-inhibitors-interfere-with-vertical-transmission-in-mice-infected-with-neospora-caninum-tachyzoites
#17
Joachim Müller, Adriana Aguado-Martínez, Vreni Balmer, Dustin J Maly, Erkang Fan, Luis-Miguel Ortega-Mora, Kayode K Ojo, Wesley C Van Voorhis, Andrew Hemphill
We present the effects of two novel bumped kinase inhibitors, BKI-1517 and BKI-1553 against Neospora caninum tachyzoites in vitro and in experimentally infected pregnant mice. The compounds inhibited tachyzoite proliferation of a transgenic beta-galactosidase reporter strain cultured in human foreskin fibroblasts with IC50 values of 0.05 ± 0.03 and 0.18 ± 0.03 μM, respectively. As assessed by Alamar blue assay, fibroblast IC50 values were above 20 μM, however, morphological changes occurred in cultures treated with more than 5 μM BKI-1517 after prolonged (>6 days) exposure...
January 30, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28132857/il-27-facilitates-skin-wound-healing-through-induction-of-epidermal-proliferation-and-host-defense
#18
Bin Yang, Jutamas Suwanpradid, Roberto Sanchez-Lagunes, Hae Woong Choi, Peter Hoang, Donghai Wang, Soman N Abraham, Amanda S MacLeod
Skin wound repair requires a coordinated program of epithelial cell proliferation and differentiation as well as resistance to invading microbes. However, the factors that trigger epithelial cell proliferation in this inflammatory process are incompletely understood. In this study, we demonstrate that IL-27 is rapidly and transiently produced by CD301b(+) cells in the skin following injury. The functional role of IL-27 and CD301b(+) cells is demonstrated by the finding that CD301b-depleted mice exhibit delayed wound closure in vivo which could be rescued by topical IL-27 treatment...
January 26, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28124466/cellular-senescence-in-osteoarthritis-pathology
#19
REVIEW
Kendal McCulloch, Gary J Litherland, Taranjit Singh Rai
Cellular senescence is a state of stable proliferation arrest of cells. The senescence pathway has many beneficial effects and is seen to be activated in damaged/stressed cells, as well as during embryonic development and wound healing. However, the persistence and accumulation of senescent cells in various tissues can also impair function and have been implicated in the pathogenesis of many age-related diseases. Osteoarthritis (OA), a severely debilitating chronic condition characterized by progressive tissue remodeling and loss of joint function, is the most prevalent disease of the synovial joints, and increasing age is the primary OA risk factor...
January 26, 2017: Aging Cell
https://www.readbyqxmd.com/read/28120218/platelet-rich-plasma-inhibits-inflammatory-factors-and-represses-rheumatoid-fibroblast-like-synoviocytes-in-rheumatoid-arthritis
#20
Shichao Tong, Ji Liu, Changqing Zhang
Rheumatoid arthritis (RA) is a chronic disease affecting daily life of numerous patients, and uncontrolled proliferation of synovial fibroblasts plays vital role during the pathology of RA. Platelet-rich plasma (PRP), widely used in tissue regeneration and pain management, is rarely studied in RA. This study aims to investigate the effect of PRP on synovial fibroblasts during RA. Rheumatoid fibroblast-like synoviocyte MH7A cells were stimulated by lipopolysaccharide (LPS) to simulate RA conditions and treated with PRP, after that the concentration of inflammatory factors interleukin (IL) 1β, tumor necrosis factor alpha (TNFα) and IL6 in the supernatant of culture medium was quantified by ELISA...
January 24, 2017: Clinical and Experimental Medicine
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