Distinct temporal-spatial roles for rho kinase and myosin light chain kinase in epithelial purse-string wound closure.

Abstract:

BACKGROUND & AIMS:Small epithelial wounds heal by purse-string contraction of an actomyosin ring that is regulated by myosin light chain (MLC) kinase (MLCK) and rho kinase (ROCK). These studies aimed to define the roles of these kinases in purse-string wound closure. METHODS:Oligocellular and single-cell wounds were created in intestinal epithelial monolayers. Fluorescence imaging and electrophysiologic data were collected during wound closure. Human biopsies were studied immunohistochemically. RESULTS:Live-cell imaging of enhanced green fluorescent protein-beta-actin defined rapid actin ring assembly within 2 minutes after wounding. This progressed to a circumferential ring within 8 minutes that subsequently contracted and closed the wound. We therefore divided this process into 2 phases: ring assembly and wound contraction. Activated rho and ROCK localized to the wound edge during ring assembly. Consistent with a primary role in the assembly phase, ROCK inhibition prevented actin ring assembly and wound closure. ROCK inhibition after ring assembly was complete had no effect. Recruitment and activation of MLCK occurred after ring assembly was complete and coincided with ring contraction. MLCK inhibition slowed and then stopped contraction but did not prevent ring assembly. MLCK inhibition also delayed barrier function recovery. Studies of human colonic biopsy specimens suggest that purse-string wound closure also occurs in vivo, because MLC phosphorylation was enhanced surrounding oligocellular wounds. CONCLUSIONS:These results suggest complementary roles for these kinases in purse-string closure of experimental and in vivo oligocellular epithelial wounds; rho and ROCK are critical for actin ring assembly, while the activity of MLCK drives contraction.

journal_name

Gastroenterology

journal_title

Gastroenterology

authors

Russo JM,Florian P,Shen L,Graham WV,Tretiakova MS,Gitter AH,Mrsny RJ,Turner JR

doi

10.1053/j.gastro.2005.01.004

keywords:

subject

Has Abstract

pub_date

2005-04-01 00:00:00

pages

987-1001

issue

4

eissn

0016-5085

issn

1528-0012

pii

S0016508505000247

journal_volume

128

pub_type

杂志文章
  • Prospective blinded evaluation of computed tomographic colonography for screen detection of colorectal polyps.

    abstract:BACKGROUND & AIMS:This study used a low lesion prevalence population reflective of the screening setting to estimate the sensitivity and specificity of computerized tomographic (CT) colonography for detection of colorectal polyps. METHODS:This prospective, blinded study comprised 703 asymptomatic persons at higher-tha...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(03)00894-1

    authors: Johnson CD,Harmsen WS,Wilson LA,Maccarty RL,Welch TJ,Ilstrup DM,Ahlquist DA

    更新日期:2003-08-01 00:00:00

  • Ultrastructure of interstitial cells of Cajal associated with deep muscular plexus of human small intestine.

    abstract::Evidence showing that interstitial cells of Cajal have important regulatory functions in the gut musculature is accumulating. In the current study, the ultrastructure of the deep muscular plexus and associated interstial cells of Cajal in human small intestine were studied to provide a reference for identification and...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(92)91784-2

    authors: Rumessen JJ,Mikkelsen HB,Thuneberg L

    更新日期:1992-01-01 00:00:00

  • Lactose enemas plus placebo tablets vs. neomycin tablets plus starch enemas in acute portal systemic encephalopathy. A double-blind randomized controlled study.

    abstract::A randomized, double-blind comparison of lactose enemas plus placebo tablets vs. starch enemas plus neomycin tablets was performed on 18 patients with acute portal systemic encephalopathy. Ten patients received starch enemas (10%; 1000 ml t.i.d.) plus neomycin tablets and 8 patients received lactose enemas (20%; 1000 ...

    journal_title:Gastroenterology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:

    authors: Uribe M,Berthier JM,Lewis H,Mata JM,Sierra JG,García-Ramos G,Ramírez Acosta J,Dehesa M

    更新日期:1981-07-01 00:00:00

  • Glycemic load, glycemic index, and carbohydrate intake in relation to risk of cholecystectomy in women.

    abstract:BACKGROUND & AIMS:High-carbohydrate diets with a high glycemic response may exacerbate the metabolic consequences of the insulin-resistance syndrome. The effect on the incidence of gallstone disease is not clear. METHODS:We examined the associations between high-carbohydrate diets with a high glycemic response and the...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2005.05.016

    authors: Tsai CJ,Leitzmann MF,Willett WC,Giovannucci EL

    更新日期:2005-07-01 00:00:00

  • Portal and biliary phases of enterohepatic circulation of corrinoids in humans.

    abstract::The assimilation of labeled cobalamin and the transport of corrinoids in portal blood, peripheral venous blood, and bile were studied in eight cholecystectomized patients, after ingestion of a dose of cyano[57Co]cobalamin (0.5 microCi). The radioactivity appeared in the portal vein after a delay of 1.5-2 hours and in ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(91)90094-2

    authors: el Kholty S,Gueant JL,Bressler L,Djalali M,Boissel P,Gerard P,Nicolas JP

    更新日期:1991-11-01 00:00:00

  • Effect of six weeks of treatment with cisapride in gastroparesis and intestinal pseudoobstruction.

    abstract::We have investigated the effect of oral cisapride (10 mg t.i.d.) in a double-blind, placebo-controlled trial in 26 patients with upper gut dysmotility: 11 with gastroparesis (8 diabetic, 3 idiopathic) and 15 with chronic idiopathic intestinal pseudoobstruction. Patients were evaluated at entry and at the end of the 6-...

    journal_title:Gastroenterology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:

    authors: Camilleri M,Malagelada JR,Abell TL,Brown ML,Hench V,Zinsmeister AR

    更新日期:1989-03-01 00:00:00

  • Analysis of Liver Offers to Pediatric Candidates on the Transplant Wait List.

    abstract:BACKGROUND & AIMS:Approximately 10% of children on the liver transplant wait-list in the United States die every year. We examined deceased donor liver offer acceptance patterns and their contribution to pediatric wait-list mortality. METHODS:We performed a retrospective cohort study of children on the US liver transp...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2017.06.053

    authors: Hsu EK,Shaffer ML,Gao L,Sonnenday C,Volk ML,Bucuvalas J,Lai JC

    更新日期:2017-10-01 00:00:00

  • Dysregulated Bile Transporters and Impaired Tight Junctions During Chronic Liver Injury in Mice.

    abstract:BACKGROUND & AIMS:Liver fibrosis, hepatocellular necrosis, inflammation, and proliferation of liver progenitor cells are features of chronic liver injury. Mouse models have been used to study the end-stage pathophysiology of chronic liver injury. However, little is known about differences in the mechanisms of liver inj...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2018.06.048

    authors: Pradhan-Sundd T,Vats R,Russell JO,Singh S,Michael AA,Molina L,Kakar S,Cornuet P,Poddar M,Watkins SC,Nejak-Bowen KN,Monga SP,Sundd P

    更新日期:2018-10-01 00:00:00

  • Duct cells contribute to regeneration of endocrine and acinar cells following pancreatic damage in adult mice.

    abstract:BACKGROUND & AIMS:There have been conflicting results on a cell of origin in pancreatic regeneration. These discrepancies predominantly stem from lack of specific markers for the pancreatic precursors/stem cells, as well as differences in the targeted cells and severity of tissue injury in the experimental models so fa...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2011.07.003

    authors: Criscimanna A,Speicher JA,Houshmand G,Shiota C,Prasadan K,Ji B,Logsdon CD,Gittes GK,Esni F

    更新日期:2011-10-01 00:00:00

  • Campylobacter fetus ss. jejuni: a cause of massive lower gastrointestinal hemorrhage.

    abstract::A patient is described with Campylobacter enteritis complicated by massive lower gastrointestinal bleeding from multiple mucosal ulcers in the terminal ileum and at the ileocecal valve. Repeated stool cultures and antibiotic therapy may be indicated in certain patients to diminish the morbidity arising from what may s...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Michalak DM,Perrault J,Gilchrist MJ,Dozois RR,Carney JA,Sheedy PF 2nd

    更新日期:1980-10-01 00:00:00

  • Phosphoinositide 3-kinase signaling mediates beta-catenin activation in intestinal epithelial stem and progenitor cells in colitis.

    abstract:BACKGROUND & AIMS:Mechanisms responsible for crypt architectural distortion in chronic ulcerative colitis (CUC) are not well understood. Data indicate that serine/threonine protein kinase Akt (Akt) signaling cooperates with Wingless (Wnt) to activate beta-catenin in intestinal stem and progenitor cells through phosphor...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2010.05.037

    authors: Lee G,Goretsky T,Managlia E,Dirisina R,Singh AP,Brown JB,May R,Yang GY,Ragheb JW,Evers BM,Weber CR,Turner JR,He XC,Katzman RB,Li L,Barrett TA

    更新日期:2010-09-01 00:00:00

  • Critical role of caspases in the regulation of apoptosis and proliferation of mucosal T cells.

    abstract:BACKGROUND & AIMS:Caspases are critical mediators of apoptosis and proliferation of peripheral blood T cells (PBT), but their role in lamina propria T cells (LPT), a cell population highly susceptible to apoptosis, has not been explored. METHODS:RA(+), RO(+) PBT, and LPT were activated with CD3, CD2, and CD28 antibodi...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/gast.2002.32996

    authors: Sturm A,Mohr S,Fiocchi C

    更新日期:2002-05-01 00:00:00

  • Interferon-induced gene expression is a stronger predictor of treatment response than IL28B genotype in patients with hepatitis C.

    abstract:BACKGROUND & AIMS:The host immune response during the chronic phase of hepatitis C virus infection varies among individuals; some patients have a no interferon (IFN) response in the liver, whereas others have full activation of IFN-stimulated genes (ISGs). Preactivation of this endogenous IFN system is associated with ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2010.11.039

    authors: Dill MT,Duong FH,Vogt JE,Bibert S,Bochud PY,Terracciano L,Papassotiropoulos A,Roth V,Heim MH

    更新日期:2011-03-01 00:00:00

  • Acute and chronic cyclooxygenase blockage in portal-hypertensive rats: influence in nitric oxide biosynthesis.

    abstract:BACKGROUND & AIMS:Prostacyclin and nitric oxide have been involved in the hyperkinetic syndrome in portal hypertension. The aim of this study was to investigate the relative contribution and possible interaction between prostacyclin and NO in this circulatory abnormality. METHODS:Portal vein-ligated and sham-operated ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/gast.1996.v110.pm8613060

    authors: Fernández M,García-Pagán JC,Casadevall M,Mourelle MI,Piqué JM,Bosch J,Rodés J

    更新日期:1996-05-01 00:00:00

  • Serotonin mediates oxidative stress and mitochondrial toxicity in a murine model of nonalcoholic steatohepatitis.

    abstract:BACKGROUND AND AIMS:Nonalcoholic steatohepatitis (NASH) is one of the most common causes of liver enzyme elevation in the West. Its prevalence is likely to increase further, paralleling the epidemic increase of the metabolic syndrome. Serotonin degradation by monoamine oxidase A (MAO-A) was recently implicated as an im...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2007.05.019

    authors: Nocito A,Dahm F,Jochum W,Jang JH,Georgiev P,Bader M,Renner EL,Clavien PA

    更新日期:2007-08-01 00:00:00

  • Human duodenal mucosal bicarbonate secretion. Evidence for basal secretion and stimulation by hydrochloric acid and a synthetic prostaglandin E1 analogue.

    abstract::The factors responsible for prevention of duodenal mucosal injury are not known. This series of experiments was performed to determine whether the human duodenum secretes bicarbonate that could prevent mucosal damage. To isolate a 4-cm segment of proximal (i.e., the duodenal bulb) or distal duodenum free of contaminat...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Isenberg JI,Hogan DL,Koss MA,Selling JA

    更新日期:1986-08-01 00:00:00

  • Quantitative fecal indium 111-labeled leukocyte excretion in the assessment of disease in Crohn's disease.

    abstract::The assessment of disease activity in Crohn's disease involves determination of either clinical indexes (e.g., Crohn's disease activity index) or laboratory measurements (e.g., C-reactive protein and erythrocyte sedimentation rate). These have the disadvantage of being indirect and nonspecific correlates of gut inflam...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Saverymuttu SH,Peters AM,Lavender JP,Pepys MB,Hodgson HJ,Chadwick VS

    更新日期:1983-12-01 00:00:00

  • Sulindac is excreted into bile by a canalicular bile salt pump and undergoes a cholehepatic circulation in rats.

    abstract:BACKGROUND & AIMS:Dihydroxy bile acids induce a bicarbonate-rich hypercholeresis when secreted into canalicular bile in unconjugated form; the mechanism is cholehepatic shunting. The aim of this study was to identify a xenobiotic that induces hypercholeresis by a similar mechanism. METHODS:Five organic acids (sulindac...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(99)70356-2

    authors: Bolder U,Trang NV,Hagey LR,Schteingart CD,Ton-Nu HT,Cerrè C,Elferink RP,Hofmann AF

    更新日期:1999-10-01 00:00:00

  • Impaired mixed-lymphocyte culture reactions in patients with inflammatory bowel disease.

    abstract::We studied the response of lymphocytes from 43 patients with inflammatory bowel disease to allogeneic stimulation in one-way mixed-lymphocyte cultures. We found that 53% of patients with inflammatory bowel disease, in contrast to 4% of normal and disease controls, had significant depression of mixed-lymphocyte culture...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Fiske SC,Falchuk ZM

    更新日期:1980-10-01 00:00:00

  • Fluorescent PAS-reaction study of the epithelium of normal rabbit ileum and after challenge with enterotoxigenic Escherichia coli.

    abstract::Fluorescent periodic acid-Schiff reaction (FPR) was used in the study of the normal rabbit ileal epithelium and its changes after injection of living cultures or enterotoxins of enterotoxigenic Escherichia coli. This reaction, with the use of auramine OO-SO2 complex as a Schiff-type reagent, demonstrates gut epitheliu...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Khavkin TN,Kudryavtseva MV,Dragunskaya EM,Polotsky YE,Kudryavtsev BN

    更新日期:1980-04-01 00:00:00

  • Accumulation of unconjugated bilirubin in cholesterol pellets implanted in swine gallbladders.

    abstract:BACKGROUND & AIMS:Most cholesterol gallstones have a pigmented center, but it is unclear whether its presence is primary or secondary. This study was performed to determine if bilirubin would accumulate in a gallstone model consisting of cholesterol pellets. METHODS:Cholesterol was compressed into pellets at 2500 psi,...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/gast.1996.v110.pm8566610

    authors: Sanabria JR,Gordon ER,Harvey PR,Goresky CA,Strasberg SM

    更新日期:1996-02-01 00:00:00

  • Jejunal manometry patterns in health, partial intestinal obstruction, and pseudoobstruction.

    abstract::The purpose of this study was to determine the utility of jejunal manometry in evaluating patients having partial small intestinal obstruction or the pseudoobstruction syndrome. We studied 10 healthy volunteers, 9 patients with documented mechanical obstruction, and 3 patients with chronic intestinal pseudoobstruction...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Summers RW,Anuras S,Green J

    更新日期:1983-12-01 00:00:00

  • Reactive nitrogen species switch on early extracellular matrix remodeling via induction of MMP1 and TNFalpha.

    abstract:BACKGROUND & AIMS:Liver injury leads to generation of reactive oxygen and nitrogen species, which can react to produce peroxynitrite (ONOO-). We investigated whether ONOO- and its metabolites modulate extracellular matrix remodeling. METHODS:Stellate cells (HSC) were incubated with pure ONOO- or SIN-1 (a ONOO- donor)....

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2008.12.065

    authors: Urtasun R,Cubero FJ,Vera M,Nieto N

    更新日期:2009-04-01 00:00:00

  • Factors influencing the eradication of Helicobacter pylori with triple therapy.

    abstract::Helicobacter pylori infection has been associated with gastritis, duodenal ulcer, gastric ulcer, and the epidemic form of gastric carcinoma. Eradication of H. pylori infection has proven to be difficult. Recently, combinations of antimicrobial drugs have been shown to eradicate greater than 50% of infections; however,...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(92)90095-g

    authors: Graham DY,Lew GM,Malaty HM,Evans DG,Evans DJ Jr,Klein PD,Alpert LC,Genta RM

    更新日期:1992-02-01 00:00:00

  • Selective recognition of mucosal lymphoid high endothelium by gut intraepithelial leukocytes.

    abstract::Circulating precursors of mucosal immunoglobulin A plasma cells and T-cell immunoblasts migrate selectively into mucosal sites from the blood, but the mechanisms controlling this selective trafficking have not been determined. One possibility is that the site-specific extravasation of circulating effector cell populat...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(88)90226-0

    authors: Schmitz M,Nunez D,Butcher EC

    更新日期:1988-03-01 00:00:00

  • Differential role of selectins in experimental colitis.

    abstract:BACKGROUND AND AIMS:The role of selectins in experimental colitis remains unknown. The aims of this study were to characterize the time-course expression of selectins in trinitrobenzene sulfonic acid (TNBS)-induced colitis, the functional role of selectins in colonic leukocyte-endothelial cell interactions, and the the...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/gast.2001.23252

    authors: Sans M,Salas A,Soriano A,Prats N,Gironella M,Pizcueta P,Elena M,Anderson DC,Piqué JM,Panés J

    更新日期:2001-04-01 00:00:00

  • Involvement of T3Ralpha- and beta-receptor subtypes in mediation of T3 functions during postnatal murine intestinal development.

    abstract:BACKGROUND & AIMS:Thyroid hormones are implicated in intestinal development. Their effects are mediated by nuclear receptors, which are transcriptional regulators activated upon binding of triiodothyronine. The aim of this study was to define the involvement of the receptor subtypes during intestinal development. METH...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(99)70501-9

    authors: Plateroti M,Chassande O,Fraichard A,Gauthier K,Freund JN,Samarut J,Kedinger M

    更新日期:1999-06-01 00:00:00

  • Expression of cell-surface antigens on rat colonic cancer cells.

    abstract::Previously, we reported that two glycoproteins, carcinoembryonic antigen and secretory component, are preferentially expressed on the apical or laterobasal surfaces, respectively, of normal human colonic epithelial cells, whereas these antigens may be expressed over the entire cell surface of colonic cancer cells. The...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(88)90420-9

    authors: Sugiyama T,Brown WR,Ahnen DJ

    更新日期:1988-02-01 00:00:00

  • Admission volume determines outcome for patients with acute pancreatitis.

    abstract:BACKGROUND & AIMS:There is controversy over the optimal management strategy for patients with acute pancreatitis (AP). Studies have shown a hospital volume benefit for in-hospital mortality after surgery, and we examined whether a similar mortality benefit exists for patients admitted with AP. METHODS:Using the Nation...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2009.08.056

    authors: Singla A,Simons J,Li Y,Csikesz NG,Ng SC,Tseng JF,Shah SA

    更新日期:2009-12-01 00:00:00

  • Impaired integrity of DNA after recovery from inflammation causes persistent dysfunction of colonic smooth muscle.

    abstract:BACKGROUND & AIMS:Patients with inflammatory bowel disease who are in remission and those who developed irritable bowel syndrome after enteric infection continue to have symptoms of diarrhea or constipation in the absence of overt inflammation, indicating motility dysfunction. We investigated whether oxidative stress d...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2011.06.074

    authors: Choi K,Chen J,Mitra S,Sarna SK

    更新日期:2011-10-01 00:00:00