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Stakenborg M, Verstockt B, Meroni E, Goverse G, De Simone V, Verstockt S, Di Matteo M, Czarnewski P, Villablanca EJ, Ferrante M, Boeckxstaens GE, Mazzone M, Vermeire S, Matteoli G. Neutrophilic HGF-MET Signalling Exacerbates Intestinal Inflammation. J Crohns Colitis 2020; 14:1748-1758. [PMID: 32556102 DOI: 10.1093/ecco-jcc/jjaa121] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS Ulcerative colitis [UC] is associated with excessive neutrophil infiltration and collateral tissue damage, but the link is not yet completely understood. Since c-MET receptor tyrosine kinase [MET] is required for neutrophil chemoattraction and cytotoxicity in response to its ligand hepatocyte growth factor [HGF], we aimed to identify the function of HGF-MET signalling in neutrophils in UC patients and in mice during intestinal inflammation. METHODS Serum and colonic biopsies from healthy controls and UC patients with active [Mayo endoscopic subscore 2-3] and inactive [Mayo endoscopic subscore 0-1] disease were collected to assess the level of serum and colonic HGF. Disease progression and immune cell infiltration were assessed during dextran sodium sulphate [DSS] colitis in wild-type and MRP8-Cre MET-LoxP mice. RESULTS Increased mucosal HGF expression was detected in patients with active UC, and in mice during the inflammatory phase of DSS colitis. Similarly, serum HGF was significantly increased in active UC patients and positively correlated with C-reactive protein and blood neutrophil counts. Flow cytometric analysis also demonstrated an upregulation of colonic MET+ neutrophils during DSS colitis. Genetic ablation of MET in neutrophils reduced the severity of DSS-induced colitis. Concomitantly, there was a decreased number of TH17 cells, which could be due to a decreased production of IL-1β by MET-deficient neutrophils. CONCLUSIONS These data highlight the central role of neutrophilic HGF-MET signalling in exacerbating damage during intestinal inflammation. Hence, selective blockade of this pathway in neutrophils could be considered as a novel therapeutic approach in UC.
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Affiliation(s)
- Michelle Stakenborg
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Bram Verstockt
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium.,Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Elisa Meroni
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Gera Goverse
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Veronica De Simone
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Sare Verstockt
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Mario Di Matteo
- Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium.,Laboratory of Tumor Inflammation and Angiogenesis, Department of Oncology, Center for Cancer Biology, KU Leuven, Leuven, Belgium
| | - Paulo Czarnewski
- Department of Medicine, Immunology and Allergy division, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Eduardo J Villablanca
- Department of Medicine, Immunology and Allergy division, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Marc Ferrante
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium.,Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Guy E Boeckxstaens
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Massimiliano Mazzone
- Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium.,Laboratory of Tumor Inflammation and Angiogenesis, Department of Oncology, Center for Cancer Biology, KU Leuven, Leuven, Belgium
| | - Séverine Vermeire
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium.,Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Gianluca Matteoli
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
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Eagleson KL, Xie Z, Levitt P. The Pleiotropic MET Receptor Network: Circuit Development and the Neural-Medical Interface of Autism. Biol Psychiatry 2017; 81:424-433. [PMID: 27837921 PMCID: PMC5285483 DOI: 10.1016/j.biopsych.2016.08.035] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 08/11/2016] [Accepted: 08/28/2016] [Indexed: 02/07/2023]
Abstract
People with autism spectrum disorder and other neurodevelopmental disorders (NDDs) are behaviorally and medically heterogeneous. The combination of polygenicity and gene pleiotropy-the influence of one gene on distinct phenotypes-raises questions of how specific genes and their protein products interact to contribute to NDDs. A preponderance of evidence supports developmental and pathophysiological roles for the MET receptor tyrosine kinase, a multifunctional receptor that mediates distinct biological responses depending upon cell context. MET influences neuron architecture and synapse maturation in the forebrain and regulates homeostasis in gastrointestinal and immune systems, both commonly disrupted in NDDs. Peak expression of synapse-enriched MET is conserved across rodent and primate forebrain, yet regional differences in primate neocortex are pronounced, with enrichment in circuits that participate in social information processing. A functional risk allele in the MET promoter, enriched in subgroups of children with autism spectrum disorder, reduces transcription and disrupts socially relevant neural circuits structurally and functionally. In mice, circuit-specific deletion of Met causes distinct atypical behaviors. MET activation increases dendritic complexity and nascent synapse number, but synapse maturation requires reductions in MET. MET mediates its specific biological effects through different intracellular signaling pathways and has a complex protein interactome that is enriched in autism spectrum disorder and other NDD candidates. The interactome is coregulated in developing human neocortex. We suggest that a gene as pleiotropic and highly regulated as MET, together with its interactome, is biologically relevant in normal and pathophysiological contexts, affecting central and peripheral phenotypes that contribute to NDD risk and clinical symptoms.
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Affiliation(s)
- Kathie L Eagleson
- Program in Developmental Neurogenetics, Institute for the Developing Mind Children's Hospital Los Angeles, CA; Department of Pediatrics, Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - Zhihui Xie
- Program in Developmental Neurogenetics, Institute for the Developing Mind Children's Hospital Los Angeles, CA
| | - Pat Levitt
- Program in Developmental Neurogenetics, Institute for the Developing Mind Children's Hospital Los Angeles, CA; Department of Pediatrics, Keck School of Medicine of University of Southern California, Los Angeles, CA.
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3
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Yuge K, Takahashi T, Khai NC, Goto K, Fujiwara T, Fujiwara H, Kosai KI. Intramuscular injection of adenoviral hepatocyte growth factor at a distal site ameliorates dextran sodium sulfate-induced colitis in mice. Int J Mol Med 2014; 33:1064-74. [PMID: 24604303 PMCID: PMC4020479 DOI: 10.3892/ijmm.2014.1686] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 02/19/2014] [Indexed: 01/18/2023] Open
Abstract
Inflammatory bowel disease (IBD) severely affects the quality of life of patients. At present, there is no clinical solution for this condition; therefore, there is a need for innovative therapies for IBD. Hepatocyte growth factor (HGF) exerts various biological activities in various organs. However, a clinically applicable and effective HGF-based therapy for IBD has yet to be developed. In this study, we examined the therapeutic effect of injecting an adenoviral vector encoding the human HGF gene (Ad.HGF) into the hindlimbs of mice with dextran sodium sulfate (DSS)-induced colitis. Plasma levels of circulating human HGF (hHGF) were measured in injected mice. The results showed that weight loss and colon shortening were significantly lower in Ad.HGF-infected mice as compared to control (Ad.LacZ-infected) colitic mice. Additionally, inflammation and crypt scores were significantly reduced in the entire length of the colon, particularly in the distal section. This therapeutic effect was associated with increased cell proliferation and an antiapoptotic effect, as well as a reduction in the number of CD4+ cells and a decreased CD4/CD8 ratio. The levels of inflammatory, as well as Th1 and Th2 cytokines were higher in Ad.HGF-infected mice as compared to the control colitic mice. Thus, systemically circulating hHGF protein, produced by an adenovirally transduced hHGF gene introduced at distal sites in the limbs, significantly ameliorated DSS-induced colitis by promoting cell proliferation (i.e., regeneration), preventing apoptosis, and immunomodulation. Owing to its clinical feasibility and potent therapeutic effects, this method may be developed into a clinical therapy for treating IBD.
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Affiliation(s)
- Kentaro Yuge
- Department of Gene Therapy and Regenerative Medicine, Graduate School of Medicine, Gifu University, Gifu 502-1194, Japan
| | - Tomoyuki Takahashi
- Department of Gene Therapy and Regenerative Medicine, Graduate School of Medicine, Gifu University, Gifu 502-1194, Japan
| | - Ngin Cin Khai
- Department of Gene Therapy and Regenerative Medicine, Graduate School of Medicine, Gifu University, Gifu 502-1194, Japan
| | - Kazuko Goto
- Department of Gene Therapy and Regenerative Medicine, Graduate School of Medicine, Gifu University, Gifu 502-1194, Japan
| | - Takako Fujiwara
- Department of Food Science, Kyoto Women's University, Kyoto 605-8501, Japan
| | - Hisayoshi Fujiwara
- Department of Gene Therapy and Regenerative Medicine, Graduate School of Medicine, Gifu University, Gifu 502-1194, Japan
| | - Ken-Ichiro Kosai
- Department of Gene Therapy and Regenerative Medicine, Graduate School of Medicine, Gifu University, Gifu 502-1194, Japan
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Setoyama H, Ido A, Numata M, Moriuchi A, Yamaji N, Tamai T, Funakawa K, Fujita H, Sakiyama T, Uto H, Oketani M, Tsubouchi H. Repeated enemas with hepatocyte growth factor selectively stimulate epithelial cell proliferation of injured mucosa in rats with experimental colitis. Life Sci 2011; 89:269-75. [PMID: 21763320 DOI: 10.1016/j.lfs.2011.06.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2010] [Revised: 06/04/2011] [Accepted: 06/08/2011] [Indexed: 01/27/2023]
Abstract
AIMS Hepatocyte growth factor (HGF) modulates intestinal epithelial cell proliferation and migration. We previously reported that systemic administration of recombinant human HGF (rh-HGF) ameliorated experimental colitis. However, an increase in serum HGF concentrations may induce undesired systemic effects, limiting the use of rh-HGF. To avoid possible side effects, we investigated the safety and efficacy of rectally administered rh-HGF as a treatment for experimental colitis. MAIN METHODS We measured serum human HGF concentration following a single rectal enema of rh-HGF. Rats with 2,4,6-trinitrobenzene sulfonic acid (TNBS)- or dextran sulfate sodium (DSS)-induced colitis were treated with rectal enemas of rh-HGF once a day for seven days. The degree of mucosal injuries and the proliferative activity of the colon epithelium were examined. KEY FINDINGS Rats administered a rectal enema of rh-HGF at a dose of 0.1 mg/ml or less had no detectable rh-HGF in the serum. Repeated enemas of rh-HGF at this dose significantly reduced mucosal injuries, both with respect to lesion size and inflammatory cell infiltration. This regimen also stimulated proliferation of epithelial cells surrounding injured mucosa; however, the cell proliferation of uninjured mucosa was not affected by this local treatment. SIGNIFICANCE Rectally administered rh-HGF selectively accelerates the repair of injured mucosa in rat experimental colitis without systemic exposure to HGF. Rectal enemas of HGF are thus a potential novel and safe therapy for IBD.
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Affiliation(s)
- Hitoshi Setoyama
- HGF Hepatic Regeneration Therapy Project, Department of Experimental Therapeutics, Translational Research Center, Kyoto University Hospital, Kyoto, Japan
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5
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A new synaptic player leading to autism risk: Met receptor tyrosine kinase. J Neurodev Disord 2011; 3:282-92. [PMID: 21509596 PMCID: PMC3261279 DOI: 10.1007/s11689-011-9081-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Accepted: 03/25/2011] [Indexed: 12/14/2022] Open
Abstract
The validity for assigning disorder risk to an autism spectrum disorder (ASD) candidate gene comes from convergent genetic, clinical, and developmental neurobiology data. Here, we review these lines of evidence from multiple human genetic studies, and non-human primate and mouse experiments that support the conclusion that the MET receptor tyrosine kinase (RTK) functions to influence synapse development in circuits relevant to certain core behavioral domains of ASD. There is association of both common functional alleles and rare copy number variants that impact levels of MET expression in the human cortex. The timing of Met expression is linked to axon terminal outgrowth and synaptogenesis in the developing rodent and primate forebrain, and both in vitro and in vivo studies implicate this RTK in dendritic branching, spine maturation, and excitatory connectivity in the neocortex. This impact can occur in a cell-nonautonomous fashion, emphasizing the unique role that Met plays in specific circuits relevant to ASD.
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6
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Unger BL, McGee DW. Hepatocyte growth factor and keratinocyte growth factor enhance IL-1-induced IL-8 secretion through different mechanisms in Caco-2 epithelial cells. In Vitro Cell Dev Biol Anim 2010; 47:173-81. [PMID: 21082280 DOI: 10.1007/s11626-010-9365-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2010] [Accepted: 10/20/2010] [Indexed: 01/12/2023]
Abstract
A variety of cytokines have been detected in inflamed intestinal mucosal tissues, including the pro-inflammatory cytokine, interleukin-1 (IL-1), along with growth factors involved in wound healing processes such as proliferation and cell migration. However, little is known about how IL-1 and growth factors interact with intestinal epithelial cells to regulate the production of inflammatory cytokines such as interleukin-8 (IL-8). Previously, we have shown that hepatocyte growth factor (HGF) could significantly enhance IL-1-stimulated IL-8 secretion by the Caco-2 colonic epithelial cell line, yet HGF, by itself, did not stimulate IL-8 secretion. In this report, a second growth factor, keratinocyte growth factor (KGF), was also found to significantly enhance IL-1-induced IL-8 secretion by Caco-2 cells, yet KGF, by itself, also had no effect. Simultaneous addition of both IL-1 and KGF was also required for the enhancing effect. Treatment of the Caco-2 cells with wortmannin or triciribine suppressed the enhancing effect of HGF, suggesting that the effect was mediated by signaling through phosphatidylinositol-3-kinase (PI3K) and the kinase AKT. The enhancing effect of KGF was not affected by wortmannin, but was suppressed by triciribine, suggesting that the effect of KGF was through a PI3K-independent activation of AKT. These results suggest that the growth factors HGF and KGF may play a role in enhancing IL-1-stimulated production of IL-8 by epithelial cells during mucosal inflammations. However, the mechanism by which the growth factors enhance the IL-1 response may be through different initial signaling pathways.
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Affiliation(s)
- Benjamin L Unger
- Department of Biological Sciences, Binghamton University (SUNY), Binghamton, NY 13902-6000, USA
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7
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Ma Y, Semba S, Maemoto A, Takeuchi M, Kameshita I, Ishida A, Kato S, Katoh T, Liu Y, Taniguchi T. Oxazolone-induced over-expression of focal adhesion kinase in colonic epithelial cells of colitis mouse model. FEBS Lett 2010; 584:3949-54. [PMID: 20682312 DOI: 10.1016/j.febslet.2010.07.054] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2010] [Revised: 07/09/2010] [Accepted: 07/27/2010] [Indexed: 02/08/2023]
Abstract
We examined the change of protein tyrosine kinases (PTKs) expression levels in colonic epithelial cells isolated from mice in which colitis was induced by oxazolone administration, using the monoclonal antibody YK34, which cross-reacts with a wide variety of PTKs. We identified focal adhesion kinase (FAK) and found the expression level increased due to the induction of colitis. Furthermore, we found that there was a positive correlation between FAK expression and the severity of colitis. Also, FAK expression localized in the colonic epithelium but not in the lamina propria, implying FAK functions in epithelial cells during colitis formation and/or wound repairing.
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Affiliation(s)
- Yanju Ma
- Department of Biochemistry, Asahikawa Medical University, Asahikawa, Japan
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8
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Desai JC, Goo T, Fukata M, Sanyal S, Dikman A, Miller K, Cohen L, Brooks A, Wang Q, Abreu MT, Aisenberg J. NSAID-induced antral ulcers are associated with distinct changes in mucosal gene expression. Aliment Pharmacol Ther 2009; 30:71-81. [PMID: 19309390 PMCID: PMC2831742 DOI: 10.1111/j.1365-2036.2009.04000.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND The basis for individual variation in gastroduodenal vulnerability to NSAIDs is not well understood. AIM To assess whether a gene expression signature is associated with susceptibility to gastroduodenal ulcerations. METHODS Twenty-five Helicobacter pylori negative adults were treated for 7 days with naproxen 500 mg b.d. Subjects underwent baseline and post-treatment endoscopy, during which biopsies were taken from antrum and duodenum. RNA extraction and cDNA synthesis were performed, followed by PCR of 23 genes relevant to mucosal injury and repair. Fold changes in gene expression were compared between subjects who developed ulcers and those who did not. RESULTS Compared with subjects who did not develop ulcers (n = 18), subjects who developed antral ulcers (n = 7) had significantly greater mucosal up-regulation of interleukin-8 [Fold change = 33.5 (S.E.M. = 18.5) vs. -7.7 (3.2)] and of cyclo-oxygenase-2 [2.3 (1.7) vs. -10.8 (2.2)]. Conversely, non-ulcer subjects had significantly greater up-regulation of toll-like receptor-4, cyclo-oxygenase-1 and hepatocyte growth factor [14.0 (2.2) vs. -0.8 (1.0), 9.8 (2.4) vs. 0.0 (0.7) and 8.2 (2.6) vs. -2.2 (0.3) respectively]. CONCLUSIONS NSAID-induced antral ulcers are associated with a specific pattern of gastroduodenal mucosal gene expression. These patterns may provide an insight into the molecular basis of individual susceptibility to mucosal injury.
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Affiliation(s)
- Jay C Desai
- Department of Medicine (Division of Gastroenterology), The Mount Sinai Medical Center, New York, NY
| | - Tyralee Goo
- Department of Medicine (Division of Gastroenterology), The Mount Sinai Medical Center, New York, NY
| | - Masayuki Fukata
- Division of Gastroenterology, University of Miami Miller School of Medicine, Miami, Florida
| | - Shefali Sanyal
- Department of Medicine (Division of Gastroenterology), The Mount Sinai Medical Center, New York, NY
| | - Andrew Dikman
- Department of Medicine (Division of Gastroenterology), The Mount Sinai Medical Center, New York, NY
| | - Kenneth Miller
- Department of Medicine (Division of Gastroenterology), The Mount Sinai Medical Center, New York, NY
| | - Lawrence Cohen
- Department of Medicine (Division of Gastroenterology), The Mount Sinai Medical Center, New York, NY
| | - Andrew Brooks
- Environmental and Occupational Health Science Institute, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey
| | - Qi Wang
- Environmental and Occupational Health Science Institute, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey
| | - Maria T Abreu
- Division of Gastroenterology, University of Miami Miller School of Medicine, Miami, Florida
| | - James Aisenberg
- Department of Medicine (Division of Gastroenterology), The Mount Sinai Medical Center, New York, NY
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Jiang ZB, Ha XQ, Gao P. Distribution of attenuated salmonellae carrying hepatocyte growth factor genes in murine gastric ulcers. Shijie Huaren Xiaohua Zazhi 2008; 16:1722-1727. [DOI: 10.11569/wcjd.v16.i16.1722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To highlight tissue distribution of attenuated salmonellae carrying hepatocyte growth factor (HGF) genes in murine gastric ulcers and thereby to provide a basis for HGF application in gene therapy for gastric ulcers.
METHODS: Eighty acetic acid-induced gastric ulcer rats were randomly divided into two groups: HGF treatment group (n = 40 rats) and green fluorescent protein (GFP) treatment group (n = 40 rats). Intragastric administration of attenuated salmonellae carrying HGF and GFP was performed on rats, each one with 0.2 mL, and once every two days for totally 3 times. Three rats in GFP group were killed each time on day 1, 3, 5, 7, 9 and frozen sections were made from stomach, liver, intestines, spleen and kidney to observe tissue distribution of target genes under fluorescence microscopy; 3 rats in HCF group were killed each time on day 1, 3, 5, 7, 9, 11, 13, 15, 17, 19 and 21 to obverse tissue expression using ELISA and to detect tissue distribution of eukaryotic expression vector using PCR.
RESULTS: In GFP group, some strong fluorescence was observed in the stomach and intestines under fluorescence microscopy, and weak fluorescence in liver, spleen and kidneys. The intensity of fluorescence reached its peak on day 5 and day 7. In HGF group, high-level HGF gene expression by ELISA was detected in stomach, liver, spleen, kidney and intestines with higher expression in the intestines and stomach. CMV promoter fragment of eukaryotic expression vectors was detected in stomach, liver, spleen, kidney, large intestine and small intestine.
CONCLUSION: As a cellular vector, orally-administrated attenuated salmonellae could transfer target genes eukaryotic expression vector into stomach and intestinal tissues for gastric ulcer treatment in rats.
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Sipos F, Galamb O, Herszényi L, Molnár B, Solymosi N, Zágoni T, Berczi L, Tulassay Z. Elevated insulin-like growth factor 1 receptor, hepatocyte growth factor receptor and telomerase protein expression in mild ulcerative colitis. Scand J Gastroenterol 2008; 43:289-98. [PMID: 18938767 DOI: 10.1080/00365520701714434] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVE The risk of development of colorectal carcinoma is elevated in chronic, long-standing ulcerative colitis (UC). The changes in regenerative and immortalizing pathways caused by the inflammatory process, and that have been proved to be carcinogenic in other human tissues, have not been fully and uniformly described. We assayed the expression alterations of regenerative signal receptors and cell-aging inhibitory systems within colonic crypts by considering the histological activity of the disease. METHODS I-type insulin-like growth factor receptor (IGF1R), hepatocyte growth factor receptor (HGFR), telomerase reverse transcriptase (TERT) and telomerase associated protein (TP-1) expression were evaluated immunohistochemically on biopsy specimens from 11 mild, 11 moderate and 12 severe active inflammation of UC cases and from 10 normal colonic tissue cases. Independent colonic biopsies from 5 healthy and 7 severe UC cases were used for TaqMan real-time RT-PCR validation. RESULTS In mild inflammation, all observed parameters showed significantly elevated epithelial protein expression (IGF1R: 22.3 +/- 9.46%; HGFR: 35.3 +/- 22.8%; TERT/TP-1: 2.1 +/- 1.87%/2 +/- 1.32%) compared to normal (p < 0.005). In moderately active inflammation, only IGF1R expression was significantly higher (50.2 +/- 8.6%) compared to normal and mild inflammation (p < 0.005). In severe inflammation, all parameters showed decreased epithelial expression; IGF1R showed decreased mRNA expression, while HGFR was overexpressed and TERT showed a decreased tendency. CONCLUSIONS The epithelial expression of IGF1R, HGFR and TERT/TP-1 is elevated in mildly active UC. This phenomenon may allow the epithelial cells that collected genetic defects during severe inflammatory episodes pathologically to survive and proliferate.
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Affiliation(s)
- Ferenc Sipos
- and Department of Internal Medicine, Semmelweis University, Budapest, Hungary.
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11
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Kanayama M, Takahara T, Yata Y, Xue F, Shinno E, Nonome K, Kudo H, Kawai K, Kudo T, Tabuchi Y, Watanabe A, Sugiyama T. Hepatocyte growth factor promotes colonic epithelial regeneration via Akt signaling. Am J Physiol Gastrointest Liver Physiol 2007; 293:G230-9. [PMID: 17412827 DOI: 10.1152/ajpgi.00068.2007] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Hepatocyte growth factor (HGF) can promote the regeneration of injured organs, including HGF gene therapy by electroporation (EP) for liver injury. In this study, we investigated the effect of HGF on dextran sulfate sodium-induced colitis and tried to clarify the regenerative mechanisms of colonic epithelial cells and the signaling pathway involved. Colitis was induced by dextran sulfate sodium in mice, together with HGF gene transfer by EP. On day 10, the colitis was evaluated histologically and by Western blot analysis. The colonic epithelial cell line MCE301 was exposed to HGF protein, and its proliferation and activated signaling pathway were analyzed. In vivo, the histological score improved and the number of Ki-67-positive epithelial cells increased in the HGF-treated mice compared with the controls. Western blot analysis showed enhanced expression of phospho-Akt in the HGF-treated mice compared with the controls. In vitro, HGF stimulated the proliferation of MCE301 cells. There was enhanced phospho-Akt expression for more than 48 h after HGF stimulation, although phospho-ERK1/2 was enhanced for only 10 min. LY-294002 or Akt small interfering RNA suppressed cell proliferation induced by HGF. Thus HGF induces the proliferation of colonic epithelial cells via the phosphatidylinositol 3-kinase/Akt signaling pathway. HGF gene therapy can attenuate acute colitis via epithelial cell proliferation through the PI3K/Akt pathway. These data suggested that HGF gene therapy by EP may be effective for the regeneration and repair of injured epithelial cells in inflammatory bowel disease.
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Affiliation(s)
- Masami Kanayama
- Third Department of Internal Medicine, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
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12
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Grygas J, Steiger N, LeSeur CL, Unger BL, McGee DW. Hepatocyte growth factor enhances IL-1beta stimulated IL-8 secretion by Caco-2 epithelial cells. In Vitro Cell Dev Biol Anim 2007; 43:147-52. [PMID: 17464544 DOI: 10.1007/s11626-007-9018-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2006] [Accepted: 02/14/2007] [Indexed: 10/23/2022]
Abstract
Hepatocyte growth factor (HGF) can induce proliferation and migration of intestinal epithelial cells and has also been shown to be important in wound healing of inflamed mucosal tissues. HGF is known to be expressed along with interleukin-1 (IL-1) by inflamed mucosal tissues, yet the effect of HGF on IL-1-induced proinflammatory cytokine responses by colonic epithelial cells is unknown. In this report, we have examined the effect of HGF on IL-1-induced secretion of IL-8 by the Caco-2 colonic epithelial cell line. HGF stimulation alone had no effect on the secretion of IL-8 by the Caco-2 cells. However, culture of the cells with HGF and suboptimal levels of IL-1 resulted in a significant enhancement of IL-8 secretion compared to cells cultured with IL-1 alone. A similar effect was seen with HGF and IL-1 simulation of monocyte chemoattractant protein-1 secretion by the rat IEC-6 intestinal epithelial cell line. The enhancing effect of HGF was seen regardless of whether the culture medium contained serum or not. Simultaneous stimulation with HGF and IL-1 was required for the enhancing effect as cells pretreated with HGF for 24 h and then stimulated with IL-1 alone secreted IL-8 levels similar to that of cells stimulated with IL-1 alone. These results suggest that in addition to wound healing, HGF may play a role in the IL-1-induced chemokine response of epithelial cells in inflamed mucosal tissues.
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Affiliation(s)
- Jillian Grygas
- Department of Biological Sciences, Binghamton University (SUNY), Binghamton, NY 13902-6000, USA
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Uchida K, Inoue M, Otake K, Yoshiyama S, Toiyama Y, Hiro J, Araki T, Miki C, Kusunoki M. The significance of serum hepatocyte growth factor levels in planning follow-up of postoperative jaundice-free patients with biliary atresia. J Pediatr Surg 2006; 41:1657-62. [PMID: 17011264 DOI: 10.1016/j.jpedsurg.2006.05.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE The aim of this study was to clarify the significance of serum hepatocyte growth factor (HGF), interleukin (IL)-6, and IL-1 receptor antagonist (ra) levels in the evaluation of disease status in jaundice-free survivors with biliary atresia after Kasai operation. PATIENTS AND METHODS Serum concentrations of HGF, IL-6, and IL-ra were measured in 31 long-term jaundice-free patients with biliary atresia after Kasai operation and 29 controls. Patients were divided into 4 groups: group A (n = 8), normal liver function; group B (n = 9), mild liver dysfunction without portal hypertension; group C (n = 9), moderate liver dysfunction with controllable portal hypertension; and group D (n = 5), receiving liver transplantation. RESULTS Serum IL-6 levels were significantly higher in patients than in controls. There was no difference in serum IL-6 levels among groups B, C, and D. Serum IL-1ra levels were elevated according to liver dysfunction. Serum HGF levels in group D were significantly higher than in controls and the other groups. Serum hyaluronic acid levels were positively correlated with serum levels of IL-1ra and HGF. CONCLUSIONS Elevation of serum IL-1ra and HGF levels correlated with the progression of liver fibrosis and dysfunction. In particular, serum HGF levels could be used as a predictor for requiring liver transplantation.
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Affiliation(s)
- Keiichi Uchida
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu Mie 514-8507, Japan
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14
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Yuki T, Ishihara S, Rumi MAK, Ortega-Cava CF, Kadowaki Y, Kazumori H, Ishimura N, Amano Y, Moriyama N, Kinoshita Y. Increased expression of midkine in the rat colon during healing of experimental colitis. Am J Physiol Gastrointest Liver Physiol 2006; 291:G735-43. [PMID: 16959957 DOI: 10.1152/ajpgi.00388.2005] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Midkine (MK) is a unique growth and differentiation factor that modulates the proliferation and migration of various cells; however, little is known regarding its relationship to intestinal diseases. The aim of this study was to investigate MK expression and its role in dextran sulfate sodium (DSS)-induced colitis in rats. The expressions of MK, receptor-like protein-tyrosine phosphatase (RPTP)-beta, and proinflammatory cytokines were examined in rat colonic tissues after the development of DSS-induced colitis using Northern blotting, immunohistochemistry, and laser-capture microdissection (LCM) coupled with RT-PCR. The effects of MK on the migration of intestinal epithelial cells (IEC-6) were also evaluated in vitro using an intestinal wound repair model. MK expression was significantly increased in damaged colonic mucosa, mainly from day 3 to day 5 after the end of DSS administration, with abundant MK immunoreactive signals detected in submucosal fibroblasts. Expressions of proinflammatory cytokines were most strongly induced on day 1, which preceded the augmentation of MK expression. Results of LCM coupled with RT-PCR clearly indicated RPTP-beta expression in colonic epithelial cells. The migration assay showed that wound repair in the MK-treated groups was accelerated dose dependently. The present results showed for the first time that intestinal inflammation upregulates the MK-RPTP-beta system, which may stimulate mucosal regeneration during the process of healing of colitis. Additional investigations regarding the role of MK may contribute to the development of new options for the treatment of inflammatory bowel diseases.
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Affiliation(s)
- Takafumi Yuki
- Dept. of Gastroenterology and Hepatology, Shimane Medical Univ. School of Medicine, 89-1, Enya-cho, Izumo, Shimane 693-0021, Japan
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15
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Abstract
Several studies have shown alterations in vascular anatomy and physiology in inflammatory bowel disease (IBD). These findings, together with the observed upregulation of the mediators of angiogenesis in IBD patients, suggest that angiogenesis possibly contributes to the initiation and perpetuation of IBD. There is considerable evidence of an interrelationship between the mechanisms of angiogenesis and chronic inflammation in IBD. The increased expression of endothelial junction adhesion molecules found in IBD patients indicates the presence of active angiogenesis. Evidence that angiogenesis is involved in IBD was also obtained from animal models of colitis, most notably from studies of angiogenesis inhibition. Serum levels of vascular endothelial growth factor (VEGF) correlate with disease activity in human IBD and fall with the use of steroids, thalidomide, or infliximab. Pharmacological inhibition of angiogenesis, therefore, has the potential to be a therapeutic strategy in IBD. This review outlines the evidence that the rate of angiogenesis is increased in the inflamed intestine in IBD and proposes lines for future research in this field.
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Affiliation(s)
- Ioannis E Koutroubakis
- Department of Gastroenterology, University Hospital Heraklion, Heraklion, Crete, Greece.
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16
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Kanbe T, Murai R, Mukoyama T, Murawaki Y, Hashiguchi KI, Yoshida Y, Tsuchiya H, Kurimasa A, Harada KI, Yashima K, Nishimuki E, Shabana N, Kishimoto Y, Kojyo H, Miura K, Murawaki Y, Kawasaki H, Shiota G. Naked gene therapy of hepatocyte growth factor for dextran sulfate sodium-induced colitis in mice. Biochem Biophys Res Commun 2006; 345:1517-25. [PMID: 16735026 DOI: 10.1016/j.bbrc.2006.05.084] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2006] [Accepted: 05/10/2006] [Indexed: 11/29/2022]
Abstract
Ulcerative colitis (UC) is progressive and relapsing disease. To explore the therapeutic effects of naked gene therapy of hepatocyte growth factor (HGF) on UC, the SRalpha promoter driving HGF gene was intrarectally administered to the mice in which colitis was induced by dextran sulfate sodium (DSS). Expression of the transgene was seen in surface epithelium, lamina propria, and muscularis mucosae. The HGF-treated mice showed reduced colonic mucosal damage and increased body weights, compared with control mice (P < 0.01 and P < 0.05, respectively). The HGF-treated mice displayed increased number of PCNA-positive cells and decreased number of apoptotic cells than in control mice (P < 0.01, each). Phosphorylated AKT was dramatically increased after HGF gene administration, however, phosphorylated ERK1/2 was not altered. Microarray analysis revealed that HGF induced expression of proliferation- and apoptosis-associated genes. These data suggest that naked HGF gene delivery causes therapeutic effects through regulation of many downstream genes.
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Affiliation(s)
- Takamasa Kanbe
- Division of Molecular and Genetic Medicine, Department of Genetic Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Yonago, Japan
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17
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Hanawa T, Suzuki K, Kawauchi Y, Takamura M, Yoneyama H, Han GD, Kawachi H, Shimizu F, Asakura H, Miyazaki JI, Maruyama H, Aoyagi Y. Attenuation of mouse acute colitis by naked hepatocyte growth factor gene transfer into the liver. J Gene Med 2006; 8:623-35. [PMID: 16479533 DOI: 10.1002/jgm.880] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Hepatocyte growth factor (HGF) has multiple biological effects on a wide variety of cells. It modulates intestinal epithelial proliferation and migration, and critically regulates intestinal wound healing. AIMS To investigate the therapeutic effect of HGF gene transfer, we introduced the HGF gene into the liver of mice with acute colitis. METHODS The rat HGF expression plasmid vector, pCAGGS-HGF, was injected via the tail vein into C57BL/6 mice, followed by dosing with dextran sulfate sodium in distilled water. Firstly, the HGF gene was injected once on day 0. Secondly, the HGF gene was injected on day 0 and again on day 2. RESULTS Injection of the HGF gene ameliorated colitis with inhibition of both loss of body weight and shortening of colon length. It protected the colon from epithelial erosions and cellular infiltration. Expression of mRNAs for IFN-gamma, IL18, and TNF-alpha was reduced in the colon. In contrast, expression of mRNA for IL-10 was increased. The numbers of BrdU-positive intestinal epithelial cells were increased, and the numbers of TUNEL-positive apoptotic cells were decreased. Furthermore, a second injection prolonged the elevation of serum HGF levels, and ameliorated the symptoms better than a single injection. The empty pCAGGS plasmid did not ameliorate acute colitis. CONCLUSIONS HGF gene transfer attenuated acute colitis by facilitating intestinal wound repair as well as inhibiting inflammation, suggesting a new strategy for treatment of IBD.
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Affiliation(s)
- Takayasu Hanawa
- Department of Gastroenterology and Hepatology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Niigata City, Niigata 951-8510, Japan
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18
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Okamoto R, Watanabe M. Cellular and molecular mechanisms of the epithelial repair in IBD. Dig Dis Sci 2005; 50 Suppl 1:S34-8. [PMID: 16184419 DOI: 10.1007/s10620-005-2804-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2005] [Accepted: 06/06/2005] [Indexed: 12/18/2022]
Abstract
Inflammatory bowel diseases such as ulcerative colitis or Crohn's disease frequently cause epithelial damage in the intestine. In general, the intestinal epithelium is able to rapidly repair itself by the restitution, proliferation, and differentiation of epithelial cells when such tissue damage occurs. However, severe and continuous inflammation could disturb the intrinsic repair system, resulting in refractory ulcers in the intestine. In this review, we will describe the recent findings of the cellular and molecular mechanisms regulating the regeneration process of the intestinal epithelium. Furthermore, we will propose bone marrow cells as a novel source of cells to regenerate the damaged intestinal epithelium. Bone marrow cells are the only cells of extra-gastrointestinal origin that are shown to contribute to the regeneration of the intestinal epithelium. Further studies of these cells and molecules may lead to a novel therapy for the repair of damaged intestinal epithelium.
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Affiliation(s)
- Ryuichi Okamoto
- Department of Gastroenterology and Hepatology, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo113-8519, Japan
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19
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Ido A, Numata M, Kodama M, Tsubouchi H. Mucosal repair and growth factors: recombinant human hepatocyte growth factor as an innovative therapy for inflammatory bowel disease. J Gastroenterol 2005; 40:925-31. [PMID: 16261428 DOI: 10.1007/s00535-005-1705-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2005] [Accepted: 09/01/2005] [Indexed: 02/04/2023]
Abstract
The repair of intestinal mucosal injuries is a tightly regulated process involving epithelial restitution, cell proliferation and maturation, and the dedifferentiation of epithelial cells. Deeper injuries also require additional repair mechanisms, including inflammatory processes, angiogenesis, and extracellular-matrix deposition. Once intestinal mucosal injury occurs, numerous growth factors and cytokines, including hepatocyte growth factor (HGF), keratinocyte growth factor, endothelial growth factor, epidermal growth factor, transforming growth factor-beta1, intestinal trefoil factor, interleukin (IL)-1, and IL-2, are induced in both the intestinal lumen and submucosa, and these factors cooperatively stimulate epithelial mucosal repair. HGF, a major agent promoting hepatocyte proliferation, also modulates intestinal epithelial cell proliferation and migration, leading to the acceleration of intestinal mucosal repair. Additionally, the proteolytic activation of HGF, which is mediated by HGF activator, is essential for the regeneration of injured intestinal mucosa. Recently, several studies have shown that the administration of recombinant human HGF or HGF gene therapy abrogates disease severity in several animal models of inflammatory bowel disease (IBD). Recombinant human HGF will soon be available for administration to patients with fulminant hepatic failure. Although additional preclinical biological studies are required, HGF has the potential to be an important new treatment modality promoting intestinal mucosal repair in patients with IBD.
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Affiliation(s)
- Akio Ido
- Department of Experimental Therapeutics, Translational Research Center, Kyoto University Hospital, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
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20
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Numata M, Ido A, Moriuchi A, Kim I, Tahara Y, Yamamoto S, Hasuike S, Nagata K, Miyata Y, Uto H, Tsubouchi H. Hepatocyte growth factor facilitates the repair of large colonic ulcers in 2,4,6-trinitrobenzene sulfonic acid-induced colitis in rats. Inflamm Bowel Dis 2005; 11:551-8. [PMID: 15905702 DOI: 10.1097/01.mib.0000164192.71381.5c] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
BACKGROUND Hepatocyte growth factor (HGF) modulates intestinal epithelial cell proliferation and migration, serving as a critical regulator of intestinal wound healing. The aim of this study was to clarify the effects of administration of recombinant human HGF on colonic mucosal damage in vivo. METHODS Rats were given 7.5 mg of 2,4,6-trinitrobenzene sulfonic acid (TNBS) per rectum on day 0. On day 5, the degree of TNBS-induced colitis was evaluated endoscopically, and rats suffering from large ulcers (occupying more than two thirds of the luminal circumference) were treated with intravenous bolus injections of recombinant human HGF (1.0 mg/kg per day) or phosphate-buffered saline (PBS) for 5 days. RESULTS Rats with TNBS-induced colitis given human HGF showed a significant reduction in colonic ulcer coverage and large intestinal shortening compared with those treated with PBS. Administration of recombinant human HGF also stimulated the proliferation of epithelial cells and reduced the inflammatory cell infiltrate. Finally, HGF treatment decreased the myeloperoxidase activity and tumor necrosis factor alpha levels in the TNBS-inflamed colon tissues. CONCLUSIONS These results indicate that intravenous injection of HGF accelerates colonic mucosal repair and reduces infiltration of inflammatory cells in rats with TNBS-induced colitis and suggest that HGF has the potential to be a new therapeutic modality to promote intestinal mucosal repair in patients with inflammatory bowel disease.
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Affiliation(s)
- Masatsugu Numata
- Department of Internal Medicine II, Faculty of Medicine, University of Miyazaki, Kiyotake, Miyazaki, Japan
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21
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Mukoyama T, Kanbe T, Murai R, Murawaki Y, Shimomura T, Hashiguchi KI, Saeki T, Ichiba M, Yoshida Y, Tanabe N, Kurimasa A, Harada KI, Yashima K, Hisatome I, Ito H, Murawaki Y, Shiota G. Therapeutic effect of adenoviral-mediated hepatocyte growth factor gene administration on TNBS-induced colitis in mice. Biochem Biophys Res Commun 2005; 329:1217-24. [PMID: 15766556 DOI: 10.1016/j.bbrc.2005.01.166] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2005] [Indexed: 11/21/2022]
Abstract
Inflammatory bowel disease is incurable and relapsing disease. In order to clarify the effect of HGF gene therapy for inflammatory bowel disease, the adenoviral-mediated HGF gene was intrarectally administered into TNBS-colitis-induced Balb/c mice. Adenoviral-mediated gene delivery targetted its expression mainly to intestinal epithelial cells. Mucosal damage of HGF-treated intestine was significantly improved, and compared with LacZ-treated and saline administered mice (P<0.05, each). The mice treated with intrarectal administration of pAxCAHGF showed an increased average of body weight in comparison with that of pAxCALacZ-treated and saline-treated mice (P<0.05, each). The PCNA-positive cells in pAxCALacZ-treated mice were 44.7+/-4.9%, 51.7+/-6.6%, and 53.9+/-4.5% at 10, 15, and 21 days after TNBS administration, however those in pAxCAHGF-treated mice were increased to 74.3+/-5.1%, 67.1+/-2.6%, and 69.2+/-4.6% (P<0.05, each). The TUNEL-positive cells in pAxCALacZ-treated mice were 13.3+/-5.2%, 11.5+/-2.1%, and 7.2+/-5.2%, respectively. However, those in pAxCAHGF-treated mice at 10, 15, and 21 days were significantly decreased to 5.4+/-1.8%, 3.8+/-1.3%, and 5.7+/-2.8% (P<0.05, respectively). Expression of ERK1/2 was stronger in pAxCAHGF mice than in pAxCALacZ. These data suggest that adenoviral-mediated HGF gene therapy via an intrarectal route is a promising therapy for inflammatory bowel disease.
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Affiliation(s)
- Tomoyuki Mukoyama
- Division of Molecular and Genetic Medicine, Department of Genetic Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Japan
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22
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Ohda Y, Hori K, Tomita T, Hida N, Kosaka T, Fukuda Y, Miwa H, Matsumoto T. Effects of hepatocyte growth factor on rat inflammatory bowel disease models. Dig Dis Sci 2005; 50:914-21. [PMID: 15906768 DOI: 10.1007/s10620-005-2664-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Hepatocyte growth factor (HGF) is a hepatotrophic factor and, also, functions as an epithelial growth factor. We examined the therapeutic effects of HGF on rat inflammatory bowel disease models induced by trinitrobenzensulfonic acid or dextran sulfate sodium. Recombinant human HGF was continuously administered at 50 microg/body/day using an intraperitoneally implanted pump for 7 days. Treatment of HGF reduced the ulcerated area, histological damage score, mucosal myeloperoxidase activity, and epithelial apoptotic rate but did not increase epithelial mitotic rate and immunohistochemical labeling indexes of proliferating cell nuclear antigen, Ki-67, and bromodeoxyuridine as indexes of epithelial cell proliferation in either model. We then examined the epithelial localization of the HGF receptor c-met and identified it on the surface epithelia, where apoptosis was observed, but did not find it in the proliferative zone. These results suggest that HGF exhibits therapeutic effects via anti-inflammation including antiapoptosis rather than epithelial cell proliferation in these inflammatory bowel disease models.
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Affiliation(s)
- Yoshio Ohda
- Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
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23
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Oh K, Iimuro Y, Takeuchi M, Kaneda Y, Iwasaki T, Terada N, Matsumoto T, Nakanishi K, Fujimoto J. Ameliorating effect of hepatocyte growth factor on inflammatory bowel disease in a murine model. Am J Physiol Gastrointest Liver Physiol 2005; 288:G729-35. [PMID: 15550554 DOI: 10.1152/ajpgi.00438.2004] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Hepatocyte growth factor (HGF), a multifunctional cytokine, accelerates intestinal epithelial proliferation. We studied the effects of HGF in mice with trinitrobenzene sulfonic acid-induced colitis, which shows clinical and molecular resemblance to Crohn's disease. Mice with colitis repeatedly were transfected intramuscularly with human HGF cDNA. Weight, survival, histopathology, proinflammatory cytokine mRNAs, and leukocyte infiltration were assessed. Treatment with HGF cDNA induced tyrosine phosphorylation of intestinal c-Met/HGF receptors, inhibited apoptosis, and promoted mitosis in intestinal epithelial cells, accelerating intestinal epithelial restoration and suppressing inflammation. Transfection with HGF cDNA markedly suppressed intestinal mRNA expression of T-helper 1 cytokines such as interleukin-12 and -1beta, interferon-gamma, and tumor necrosis factor-alpha. Numbers of total and CD4-positive T cells, neutrophils, and myloperoxidase activity in intestinal epithelium were diminished by HGF gene transfer, which also prevented weight loss, and improved survival. HGF might prove useful for controlling inflammatory bowel disease.
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Affiliation(s)
- Koushi Oh
- First Dept. of Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan
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24
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N/A. N/A. Shijie Huaren Xiaohua Zazhi 2004; 12:1631-1637. [DOI: 10.11569/wcjd.v12.i7.1631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
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25
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Nayeri F, Almer S, Brudin L, Nilsson I, Akerlind B, Forsberg P. High hepatocyte growth factor levels in faeces during acute infectious gastroenteritis. ACTA ACUST UNITED AC 2004; 35:858-62. [PMID: 14723362 DOI: 10.1080/00365540310016484] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Hepatocyte growth factor (HGF) is a potent mitogen of mature epithelial cells which is produced after organ injuries and acts as a trigger for regeneration in the impaired organ. The aim of the present study was to investigate local production of HGF during infectious gastroenteritis. We measured the concentration of HGF in serum and faeces in 49 patients with acute infectious gastroenteritis (bacterium = 30, virus = 10, amoebae = 1, and probable infection = 8) at the time of referral to hospital and at convalescence (n = 31). The values were compared with normal healthy vaccination volunteers (n = 11) as well as patients with acute non-infectious diarrhoea (n = 10). The presence of HGF in faeces was confirmed by ELISA and Western immunoblot. HGF concentrations in faeces was significantly higher in the patients with infectious gastroenteritis compared to the control groups (p < 0.0001). Using a cut-off concentration of 20 ng/g, the overall sensitivity of faeces HGF to distinguish infectious gastroenteritis (bacterial, viral, probable infection) was 98% with a specificity of 100%. At convalescence all patients had normal values. There was no significant correlation between HGF concentrations in faeces and serum. Determination of faeces HGF may identify cases of transmittable diarrhoea requiring isolation at an early stage.
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Affiliation(s)
- Fariba Nayeri
- Division of Infectious Diseases, University Hospital, Linköping, Sweden.
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26
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Tahara Y, Ido A, Yamamoto S, Miyata Y, Uto H, Hori T, Hayashi K, Tsubouchi H. Hepatocyte growth factor facilitates colonic mucosal repair in experimental ulcerative colitis in rats. J Pharmacol Exp Ther 2003; 307:146-51. [PMID: 12954797 DOI: 10.1124/jpet.103.054106] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Hepatocyte growth factor (HGF) modulates intestinal epithelial cell proliferation and migration, serving as a critical regulator of intestinal wound healing. In this study, we examined the effect of administration of recombinant human HGF on colonic mucosal damage in vivo. Acute colitis was induced in rats by feeding with 5% dextran sulfate sodium (DSS) for 7 days, and colitis was subsequently maintained by feeding with 1% DSS. On the 5th day of DSS administration, osmotic pumps releasing recombinant human HGF (200 microg/day) were implanted into the peritoneum of the rats. Continuous intraperitoneal delivery of HGF led to both increased serum human HGF levels and c-Met tyrosine phosphorylation within the colonic mucosa. Compared with mock-treated rats, those administered human HGF showed a reduction in colitis-associated weight loss, large intestinal shortening, and improved colonic erosions. Enhanced epithelial regeneration and cellular proliferation were observed in rats treated with recombinant human HGF. The weights of the liver, kidneys, and spleen were not affected by HGF administration. These results indicate that HGF administration accelerates colonic mucosal repair in rats with DSS-induced colitis and suggest that recombinant human HGF may be a useful therapeutic tool to facilitate intestinal wound healing in patients with ulcerative colitis.
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Affiliation(s)
- Yoshihiro Tahara
- Department of Internal Medicine II, Miyazaki Medical College, Kiyotake, Japan
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27
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van Leenders GJLH, Gage WR, Hicks JL, van Balken B, Aalders TW, Schalken JA, De Marzo AM. Intermediate cells in human prostate epithelium are enriched in proliferative inflammatory atrophy. THE AMERICAN JOURNAL OF PATHOLOGY 2003; 162:1529-37. [PMID: 12707036 PMCID: PMC1851184 DOI: 10.1016/s0002-9440(10)64286-1] [Citation(s) in RCA: 138] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Within the human prostate epithelium four cell populations can be discriminated based on their expression of keratins (K). Basal cells express high levels of K5 and K14, as well as p63, whereas they have very low levels of androgen receptor, prostate-specific antigen (PSA), K8, and K18. Luminal secretory cells lack p63, K5, and K14 but express high levels of K8, K18, androgen receptor, and PSA. Additionally, cells have been identified with a keratin phenotype intermediate between basal and luminal cells that co-express high levels of K5 and K18 (K5/18) as well as hepatocyte growth factor receptor c-MET. Although intermediate cells have been proposed as precursor cells of prostate cancer, their biology is ill defined. Epithelial cells in proliferative inflammatory atrophy (PIA) appear to be cycling rapidly as indicated by expression of Ki-67, and morphological transitions have been identified between PIA and high-grade prostate intraepithelial neoplasia. Many of the atrophic epithelial luminal cells in PIA are candidates for intermediate cells based in part on weak expression of PSA and androgen receptor, high levels of K8/18, and lack of p63. The objective of this study was to further clarify the phenotype of the proposed intermediate cells in PIA and to quantitatively determine the level in which these intermediate cells preferentially occur in PIA lesions. Intermediate cells were immunohistochemically demonstrated using antibodies to K5, K14, K18, and c-MET. Using radical prostatectomy specimens (n = 15) the area fraction of intermediate cells in normally differentiated prostate epithelium and PIA were quantified by a grid point counting method. Atrophic luminal cells of PIA lesions expressed K5 in 39.2 +/- 7.4% of cells compared to 2.4 +/- 2.3% in normal epithelium (P < 0.00001). By contrast, K14 was only expressed in 3.0 +/- 3.2% of the luminal cells. Previous studies have shown that virtually 100% of these atrophic luminal cells are strongly positive for K8/18. c-MET was present in 44.1 +/- 14.1% of luminal cells in PIA but only in 2.1 +/- 2.8% of luminal cells in normal epithelium (P < 0.00001). To unambiguously determine whether intermediate luminal cells in PIA show increased proliferative activity and decreased p27(kip1) expression, double-staining immunofluorescence of Ki-67 and K5, as well as p27(Kip1) and K5 was performed. Luminal cells in PIA often co-expressed K5 and Ki-67. Although p27(Kip1) was strongly expressed in K5-negative differentiated cells in normal epithelium, p27(Kip1) staining was absent in many of the K5-positive cells in the luminal compartment of PIA. We conclude that cells phenotypically intermediate between basal and secretory cells are enriched in PIA lesions. The finding of a large number of highly proliferating intermediate cells in PIA provides further support that these cells may serve as preferred target cells in prostate carcinogenesis.
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28
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Kuno Y, Ina K, Nishiwaki T, Tsuzuki T, Shimada M, Imada A, Nishio Y, Nobata K, Suzuki T, Ando T, Hibi K, Nakao A, Yokoyama T, Yokoyama Y, Kusugami K. Possible involvement of neutrophil elastase in impaired mucosal repair in patients with ulcerative colitis. J Gastroenterol 2002; 37 Suppl 14:22-32. [PMID: 12572862 DOI: 10.1007/bf03326409] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Little information is available on the relative contribution of peptide growth factors and leukocyte-derived proteinases to the repair processes in inflammatory bowel disease (IBD). We investigated their possible roles in epithelial cell restitution and proliferation in patients with IBD. METHODS The expression of hepatocyte growth factor (HGF), keratinocyte growth factor (KGF), transforming growth factor-beta (TGF-beta), and neutrophil elastase (NE) was examined in colonic mucosal tissues. The effects of organ culture supernatants of mucosal tissues on epithelial cell restitution and proliferation were analyzed in vitro using an intestinal cell line, IEC-6 cells. RESULTS Most organ cultures detected the presence of measurable levels of HGF, with a relative paucity of KGF and TGF-beta activity. Greater levels of HGF were obtained in the mucosa involved with IBD, especially in patients with ulcerative colitis (UC). The mucosa involved with UC also showed higher amounts of NE. The supernatants from the mucosa involved with UC possessed a prominent stimulatory effect on the restitution of IEC-6 cells. By contrast, significant suppression beyond baseline levels was observed for the proliferation of IEC-6 cells when they were incubated with recombinant HGF plus the supernatants from the mucosa involved with UC. This suppression was diminished considerably by preincubation of the supernatants with the anti-NE antibody. CONCLUSIONS HGF produced in the intestinal mucosa may be an important stimulator acting on epithelial cell restitution in patients with IBD. However, NE released in situ may impair mucosal repair through inhibiting epithelial cell proliferation in patients with UC.
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Affiliation(s)
- Yuji Kuno
- First Department of Internal Medicine, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
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