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Westergren-Thorsson Gunilla - - 2010
INTRODUCTION: Airway remodelling refers to a wide pattern of pathophysiological mechanisms involving smooth muscle cell hyperplasia, increase of activated fibroblasts and myofibroblasts with deposition of extracellular matrix. In asthma, it includes alterations of the epithelial cell layer with goblet cell hyperplasia, thickening of basement membranes, peri-bronchial and peri-bronchoalveolar fibrosis. Moreover, ...
Ramos-Barbón David - - 2010
RATIONALE: Airway remodeling in asthma comprises increased airway smooth muscle (ASM), an alteration linked to airway hyperresponsiveness and disease severity. Experimental studies showed that T cells adhere to ASM through vascular cell adhesion molecule-1 (VCAM-1) and drive ASM growth through direct contact between the T cells and smooth muscle alpha-actin ...
Suzuki Takahiro - - 2010
Satellite cells, resident myogenic stem cells found in postnatal skeletal muscle, are most abundant during early postnatal development and sharply decline in frequency thereafter to adult levels in mice and rats. Therefore, postnatal changes in satellite cell mitotic activities are important aspects for further understanding a muscle growth strategy. In ...
Gao Lin - - 2010
Human mesenchymal stem cells (hMSCs) are multipotent cells that can differentiate into many cell types. Chondrogenesis is induced in hMSCs cultured as a micromass pellet to mimic cellular condensation during cartilage development, and exposed to transforming growth factor beta (TGFbeta). Interestingly, TGFbeta can also induce hMSC differentiation to smooth-muscle-like cell ...
Berntsen P - - 2010
The past decade has seen significant increases in combustion-generated ambient particles, which contain a nanosized fraction (less than 100 nm), and even greater increases have occurred in engineered nanoparticles (NPs) propelled by the booming nanotechnology industry. Although inhalation of these particulates has become a public health concern, human health effects ...
Popescu L M - - 2010
Ramon y Cajal discovered a particular cell type in the gut, which he named 'interstitial neurons' more that 100 years ago. In the early 1970s, electron microscopy/electron microscope (EM) studies showed that indeed a special interstitial cell type corresponding to the cells discovered by Cajal is localized in the gut ...
Abou-Khalil Rana - - 2010
In skeletal muscle, satellite cells, that are responsible of muscle repair, are localized close to capillaries. Although angiogenesis is known for a long time to be crucial for muscle repair and satellite cell survival, cellular interplays between vessel cells and satellite/myogenic cells have been poorly explored. We analyzed the interrelationships ...
Sumino Yasuhiro - - 2010
AIMS: To examine the effects of hepatocyte growth factor (HGF) and insulin-like growth factor-1 (IGF-1) on the myogenic differentiation of human urethral rhabdosphincter (RS) satellite cells. METHODS: Human RS was obtained from patients undergoing radical prostatectomy for prostate cancer. Selectively cultured RS satellite cells, transfected with temperature sensitive simian virus-40 ...
Shefer Gabi - - 2010
In this study we explored the expression pattern of SVEP1, a novel cell adhesion molecule (CAM), in bona fide satellite cells and their immediate progeny. We show that SVEP1 is expressed in activated satellite cells prior to their determination to the myogenic lineage. SVEP1 was also expressed during early phases ...
Uckert S - - 2010
The aim of this study was to evaluate the hypothesis that interstitial cells might play a role in controlling and synchronizing via gap junctions the electrical activity of smooth muscle cells. The expression and distribution of interstitial cells in human penile erectile tissue was evaluated to determine whether or not ...
Seyama Kuniaki - - 2010
Lymphangioleiomyomatosis (LAM) is a rare neoplastic disease in which abnormal smooth muscle-like cells (LAM cells) proliferate in the lungs and along the axial lymphatic systems, including the lymph nodes and thoracic ducts. LAM cells are transformed due to loss-of-function type mutations of either the TSC1 or TSC2 tumor suppressor genes. ...
Darling Thomas N - - 2010
The cells comprising pulmonary lymphangioleiomyomatosis (LAM) and renal angiomyolipomas (AMLs) are heterogeneous, with variable mixtures of cells exhibiting differentiation towards smooth muscle, fat, and vessels. Cells grown from LAM and AMLs have likewise tended to be heterogeneous. The discovery that LAM and AMLs contain cells with mutations in the TSC1 ...
Nagayama Kazuaki - - 2010
For a quantitative analysis of intracellular mechanotransduction, it is crucial to know the mechanical properties of actin stress fibers in situ. Here we measured tensile properties of cultured aortic smooth muscle cells (SMCs) in a quasi-in situ tensile test in relaxed and activated states to estimate stiffness of their single ...
Sims-Lucas Sunder - - 2010
Many members of the transforming growth factor-beta (TGF-beta) superfamily have been shown to be important regulators of metanephric development. In this study, we characterized the effect of TGF-beta2 on metanephric development. Rat and mouse metanephroi cultured in the presence of exogenous TGF-beta2 for up to 15 days were small, and ...
Hung Yu-Chiang - - 2010
Salvia miltiorrhiza is a Chinese herb widely used for cardiovascular disorder regimens, yet little is known about the cellular mechanisms that contribute to attenuated growth of smooth muscle cells (SMCs) under oxidative stress such as homocysteine (Hcy) treatment. As anticipated, a low dose (0.015 mg/mL) of S.miltiorrhiza aqueous extract (SMAE) ...
Hodges Steve J - - 2010
To demonstrate that human smooth muscle cells derived from neurogenic bladders produce more collagen in vitro than smooth muscle cells derived from normal bladders, and that epigenetic therapy may normalize this increased collagen production. Human smooth muscle cells from normal (n = 3) and neurogenic bladders (n = 3) were ...
Stuelsatz Pascal - - 2010
Calpain 3 is a calcium-dependent cysteine protease that is primarily expressed in skeletal muscle and is implicated in limb girdle muscular dystrophy type 2A. To date, its best characterized function is located within the sarcomere, but this protease is found in other cellular compartments, which suggests that it exerts multiple ...
Shea Kelly L KL Massachusetts General Hospital, Center of Regenerative Medicine, Harvard University, Boston, MA 02114, - - 2010
Satellite cells are skeletal muscle stem cells capable of self-renewal and differentiation after transplantation, but whether they contribute to endogenous muscle fiber repair has been unclear. The transcription factor Pax7 marks satellite cells and is critical for establishing the adult satellite cell pool. By using a lineage tracing approach, we ...
Schell C - - 2010
The wall of the seminiferous tubules contains contractile smooth-muscle-like peritubular cells, thought to be important for sperm transport. Impaired spermatogenesis in men typically involves remodeling of this wall, and we now found that smooth muscle cell (SMC) markers, namely myosin heavy chain (MYH11) and smooth muscle actin (SMA) are often ...
Xu Xiaoyin - - 2010
In vivo fluorescence imaging (FLI) enables monitoring fluorescent protein (FP)-labeled cells and proteins in living organisms noninvasively. Here, we examined whether this modality could reach a sufficient sensitivity to allow evaluation of the regeneration process of enhanced green fluorescent protein (eGFP)-labeled muscle precursors (myoblasts). Using a basic FLI station, we ...
Cutini Pablo H - - 2010
The purpose of this study was to investigate the effect of progesterone (Pg) on cellular growth, migration, apoptosis, and the molecular mechanism of action displayed by the steroid. To that end, rat aortic vascular smooth muscle cell (VSMC) cultures were employed. Pg (10nM) significantly increased [(3)H]thymidine incorporation after 24h of ...
WawrzyƄska Magdalena - - 2010
Percutaneous coronary intervention has become the most common and widely implemented method of heart revascularization. However, the development of restenosis remains the major limitation of this method. Photodynamic therapy (PDT) recently emerged as a new and promising method for the prevention of arterial restenosis. Here the efficacy of chlorin e6 ...
Zhang Keman - - 2010
MyoD is a transcriptional factor that is required for the differentiation of muscle stem cells (satellite cells). In this study, we describe a previously unknown function for MyoD in regulating a gene (Cdc6) that is vital to endowing chromatin with the capability of replicating DNA. In C2C12 and primary mouse ...
Stamatiou Rodopi - - 2010
The macrolide antibiotic azithromycin has an antiproliferative and autophagic effect on rabbit tracheal smooth muscle cells (SMCs). The purpose of this study is to investigate the effect of azithromycin on human bronchial SMCs. Human bronchial SMCs were treated with azithromycin (10(-5) M) in the presence or absence of 10% fetal ...
Day Kenneth - - 2010
Satellite cells are myogenic progenitors that reside on the myofiber surface and support skeletal muscle repair. We used mice in which satellite cells were detected by GFP expression driven by nestin gene regulatory elements to define age-related changes in both numbers of satellite cells that occupy hindlimb myofibers and their ...
Busnelli Marta - - 2010
OBJECTIVE: To assess the expression of the oxytocin receptor (OTR) and the role of oxytocin (OT) in the proliferation of myometrial and leiomyoma cells. DESIGN: Prospective laboratory study. SETTING: Research laboratory at the Italian National Research Council. PATIENT(S): Twenty-two women who underwent therapeutic myomectomy for fibroids. INTERVENTION(S): Primary cultures of ...
Zhang Keman - - 2010
MyoD is a transcriptional factor that is required for the differentiation of muscle stem cells (satellite cells). In this study, we describe a previously unknown function for MyoD in regulating a gene (Cdc6) that is vital to endowing chromatin with the capability of replicating DNA. In C2C12 and primary mouse ...
Maxová Hana - - 2010
Remodeling of the peripheral pulmonary vasculature during chronic hypoxia is characterized by accelerated collagenolysis and thickening of the vascular wall. Low molecular weight peptides, products of cleavage by interstitial collagenase and muscular layer in the peripheral pulmonary vessels, are typically present. The aim of this "in vitro" study was to ...
Chen Cheng - - 2010
Cells resident in certain hollow organs are subjected routinely to large transient stretches, including every adherent cell resident in lungs, heart, great vessels, gut, and bladder. We have shown recently that in response to a transient stretch the adherent eukaryotic cell promptly fluidizes and then gradually resolidifies, but mechanism is ...
Takacs Peter - - 2010
To measure the effects of estrogen, progesterone and polypropylene mesh on vaginal smooth muscle cell proliferation. Primary smooth muscle cell (SMC) cultures were performed from vaginal biopsies which were then incubated with estradiol (0.1 microM, 1 microM, 10 microM), progesterone (5 nM, 50 nM, 0.5 microM), or polypropylene mesh to ...
Suciu Laura - - 2010
In the last few years, a new cell type - interstitial Cajal-like cell (ICLC) - has been described in digestive and extra-digestive organs. The name has recently been changed to telocytes (TC) and their typical thin, long processes have been named telopodes (TP). To support the hypothesis that TC may ...
Bentzinger C Florian - - 2010
Cellular commitment during vertebrate embryogenesis is controlled by an interplay of intrinsic regulators and morphogenetic signals. These mechanisms recruit a subset of cells in the developing organism to become the ancestors of skeletal muscle. Signals that control progression through the myogenic lineage converge on a battery of hierarchically organized transcription ...
Ribeiro Maximiano P - - 2010
The human umbilical cord (UC) is a biological sample that can be easily obtained just after birth. This biological sample is, most of the time, discarded and their collection does not imply any added risk to the newborn or mother s health. Moreover no ethical concerns are raised. The UC ...
Pacheco-Rodriguez Gustavo - - 2010
Lymphangioleiomyomatosis (LAM), a rare cystic lung disease with multi-organ involvement, occurs primarily in women of childbearing age. LAM can present sporadically or in association with tuberous sclerosis complex (TSC). Loss of lung function in patients with LAM can be attributed to the dysregulated growth of LAM cells, with dysfunctional TSC1 ...
McCloskey Karen D - - 2010
AIMS: This review summarizes the currently available literature on the localization and proposed functions of a novel group of cells in the urinary bladder known as interstitial cells or interstitial cells of Cajal (ICC). METHODS: On-line searches of "Pubmed" for bladder, c-Kit, ICC, interstitial cell and myofibroblast were performed to ...
Maxová H - - 2010
Matrix metalloproteinases (MMPs) is a family of proteolytic enzymes involved in remodeling of extracellular matrix. Although proteolytic enzymes are produced by many cell types, mast cells seem to be more important than other types in remodeling of pulmonary arteries during hypoxia. Therefore, we tested in vitro production of MMPs and ...
Nguyen Hao G - - 2010
Polyploidy, the state of having greater than a diploid content of DNA (e.g., tetraploid, octaploid, etc) has been recognized in a large variety of both, plant and animal cells. Human and murine megakaryocytes, hepatocytes, arterial smooth muscle cells and cardiac myocytes, all develop a certain degree of polyploidy during their ...
Pucovský Vladimír - - 2010
Blood vessels are made up of several distinct cell types. Although it was originally thought that the tunica media of blood vessels was composed of a homogeneous population of fully differentiated smooth muscle cells, more recent data suggest the existence of multiple smooth muscle cell subpopulations in the vascular wall. ...
Tweedell Kenyon S - - 2010
The developmental potential of the limb regeneration blastema, a mass of mesenchymal cells of mixed origins, was once considered as being pluripotent, capable of forming all cell types. Now evidence asserts that the blastema is a heterogeneous mixture of progenitor cells derived from tissues of the amputation site, with limited ...
Tamaki Tetsuro - - 2010
Stem cells other than satellite cells that can give rise to primary myoblasts, which are able to form additional new fibers postnatally, are present in the interstitial spaces of skeletal muscle. These cells are sorted into CD34(+)/45(-) (Sk-34) and CD34(-)/45(-) (Sk-DN) cell fractions, and they are wholly (>99%) negative for ...
Jiang Qifeng - - 2010
Migration of vascular smooth muscle cells (SMCs) from the media to intima constitutes a critical step in the development of proliferative vascular diseases. To elucidate the regulatory mechanism of vacular SMC motility, the roles of caldesmon (CaD) and its phosphorylation were investigated. We have performed Transwell migration assays, immunofluorescence microscopy, ...
Lucero Héctor A - - 2010
The angiotensin converting enzyme (ACE) catalyzes the extracellular formation of angiotensin II, and degradation of bradykinin, thus regulating blood pressure and renal handling of electrolytes. We have previously shown that exogenously added ACE elicited transcriptional regulation independent of its enzymatic activity. Because transcriptional regulation generates from protein-DNA interactions within the ...
Bukovsky Antonin - - 2009
Previous work from our laboratory demonstrated that sex steroid combinations, but not individual sex steroids alone, cause transdifferentiation of ovarian epithelial cells--ovarian surface epithelium (OSE) and follicular granulosa cells--into neural stem cells (NSC) and differentiating neurons. In the present study we have chosen primary culture of human vascular smooth muscle ...
Mohanty S - - 2010
The expression pattern of caveolin-1 and the distribution of caveolae in the murine placental labyrinth and visceral yolk sac have been determined. Immunoblot analysis demonstrates that both placenta and yolk sac express the protein caveolin-1. Immunofluorescence microscopy was used to determine which cell types in the placental labyrinth and yolk ...
Singh Bhairab N - - 2010
alphaB-crystallin, a small heat shock protein, plays an important role in muscle homeostasis. It gets up-regulated during muscle differentiation and mice lacking alphaB-crystallin die prematurely with extensive muscle wastage. We have examined the role of alphaB-crystallin in muscle development using C2C12 myoblasts as a model system. Over-expression of alphaB-crystallin delays ...
Yamada Michiko - - 2010
Skeletal muscle regeneration and work-induced hypertrophy rely on molecular events responsible for activation and quiescence of resident myogenic stem cells, satellite cells. Recent studies demonstrated that hepatocyte growth factor (HGF) triggers activation and entry into the cell cycle in response to mechanical perturbation, and that subsequent expression of myostatin may ...
Souders Colby A - - 2009
The permanent cellular constituents of the heart include cardiac fibroblasts, myocytes, endothelial cells, and vascular smooth muscle cells. Previous studies have demonstrated that there are undulating changes in cardiac cell populations during embryonic development, through neonatal development and into the adult. Transient cell populations include lymphocytes, mast cells, and macrophages, ...
Lee Tae-Hee - - 2010
RATIONALE: Generation of induced pluripotent stem (iPS) cells has been intensively studied by a variety of reprogramming methods, but the molecular and functional properties of the cells differentiated from iPS cells have not been well characterized. OBJECTIVE: To address this issue, we generated iPS cells from human aortic vascular smooth ...
Kashuba Elena - - 2009
We report that the overexpression of mitochondrial ribosomal protein MRPS18-2 (S18-2) can immortalize primary rat embryonic fibroblasts (REFs). The immortalized cells (18IM) lose contact inhibition, form foci, and are capable of anchorage-independent growth. Concurrently, mesodermal markers, such as vimentin, smooth muscle actin, and Fut4, disappear completely. 18IM cells express embryonic ...
Bajracharya Prati - - 2009
Crude water extracts of 13 traditional Korean medicinal ingredients used for leiomyomal treatment were prepared and used to treat human uterine normal myometrial and leiomyomal cell cultures. All the ingredients inhibited proliferation and altered the morphology of both myometrial and leiomyomal cells. Among the 13 ingredients, n-hexane-, chloroform-, and ethylacetate-soluble ...
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