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Royal jelly extracellular vesicles promote wound healing by modulating underlying cellular responses. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 31:541-552. [PMID: 36895953 PMCID: PMC9989319 DOI: 10.1016/j.omtn.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 02/10/2023] [Indexed: 02/16/2023]
Abstract
Apis mellifera royal jelly (RJ) is a well-known remedy in traditional medicine around the world and its versatile effects range from antibacterial to anti-inflammatory properties and pro-regenerative properties. As a glandular product, RJ has been shown to contain a substantial number of extracellular vesicles (EVs), and, in this study, we aimed to investigate the extent of involvement of RJEVs in wound healing-associated effects. Molecular analysis of RJEVs verified the presence of exosomal markers such as CD63 and syntenin, and cargo molecules MRJP1, defensin-1, and jellein-3. Furthermore, RJEVs were demonstrated to modulate mesenchymal stem cell (MSC) differentiation and secretome, as well as decrease LPS-induced inflammation in macrophages by blocking the mitogen-activated protein kinase (MAPK) pathway. In vivo studies confirmed antibacterial effects of RJEVs and demonstrated an acceleration of wound healing in a splinted mouse model. This study suggests that RJEVs play a crucial role in the known effects of RJ by modulating the inflammatory phase and cellular response in wound healing. Transfer of RJ into the clinics has been impeded by the high complexity of the raw material. Isolating EVs from the raw RJ decreases the complexity while allowing standardization and quality control, bringing a natural nano-therapy one step closer to the clinics.
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2
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Krama A, Tokura N, Isoda H, Shigemori H, Miyamae Y. Cyanidin 3-Glucoside Induces Hepatocyte Growth Factor in Normal Human Dermal Fibroblasts through the Activation of β 2-Adrenergic Receptor. ACS OMEGA 2022; 7:22889-22895. [PMID: 35811916 PMCID: PMC9261277 DOI: 10.1021/acsomega.2c02659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Hepatocyte growth factor (HGF) is expressed in various organs and involved in the fundamental cellular functions such as mitogenic, motogenic, and morphogenic activities. Induction of HGF may be therapeutically useful for controlling organ regeneration, wound healing, and embryogenesis. In this study, we examined the stimulation effect of cyanidin 3-glucoside (C3G), an anthocyanidin derivative, on HGF production in normal human dermal fibroblasts (NHDFs) and the underlying mechanisms. C3G induced HGF production at both mRNA and protein levels in NHDF cells and enhanced the phosphorylation of cAMP-response element-binding protein. We also observed that treatment with C3G increased intracellular cAMP level and promoter activity of cAMP-response element in HEK293 cells expressing β2-adrenergic receptor (β2AR). In contrast, cyanidin, an aglycon of C3G, did not show the activation of β2AR signaling and HGF production. These results indicate that C3G behaves as an agonist for β2AR signaling to activate the protein kinase A pathway and induce the production of HGF.
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Affiliation(s)
- Annisa Krama
- Life
Science Innovation, School of Integrative
and Global Majors, Tennnodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Natsu Tokura
- Agro-Bioresources
Science and Technology, Life and Earth Sciences, Tennnodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Hiroko Isoda
- Faculty
of Life and Environmental Sciences, Tennnodai, Tsukuba, Ibaraki 305-8572, Japan
- Alliance
for Research on the Mediterranean and North Africa, Tennnodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Hideyuki Shigemori
- Faculty
of Life and Environmental Sciences, Tennnodai, Tsukuba, Ibaraki 305-8572, Japan
- Microbiology
Research Center for Sustainability, University
of Tsukuba, 1-1-1, Tennnodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Yusaku Miyamae
- Faculty
of Life and Environmental Sciences, Tennnodai, Tsukuba, Ibaraki 305-8572, Japan
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Galanin I, Nicu C, Tower JI. Facial Fat Fitness: A New Paradigm to Understand Facial Aging and Aesthetics. Aesthetic Plast Surg 2021; 45:151-163. [PMID: 32914326 DOI: 10.1007/s00266-020-01933-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 08/16/2020] [Indexed: 12/22/2022]
Abstract
Traditionally, facial adipose tissue has been perceived and treated as a homogenous volume-occupying subcutaneous depot. However, recent research from across disciplines is converging to reveal a far more anatomically organized and functionally dynamic role of facial adipose tissue. In this narrative review, we will discuss new insights into adipocyte function and facial adipose anatomy that have far-reaching implications for the practice of aesthetic facial plastic surgery. These concepts are synthesized into a "facial fat fitness" model which can be used to explain clinical observations in facial aging and aesthetic surgery. Fat fitness relates to the quality of facial adipose tissue, as opposed to quantity, and describes whether adipose tissue is in a predominantly healthy hyperplastic or unhealthy hypertrophic state. Fat fitness is modulated by lifestyle factors, and may be impacted positively or negatively by facial aesthetic treatments. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
| | - Carina Nicu
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jacob I Tower
- Department of Otolaryngology-Head and Neck Surgery, Zucker School of Medicine at Hofstra/Northwell, Lenox Hill Hospital, 130 East 77th Street, 10th Floor, New York, NY, USA.
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4
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The endocannabinoid receptors CB1 and CB2 affect the regenerative potential of adipose tissue MSCs. Exp Cell Res 2020; 389:111881. [DOI: 10.1016/j.yexcr.2020.111881] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 01/27/2020] [Accepted: 01/28/2020] [Indexed: 12/20/2022]
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5
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Brett E, Zielins ER, Chin M, Januszyk M, Blackshear CP, Findlay M, Momeni A, Gurtner GC, Longaker MT, Wan DC. Isolation of CD248-expressing stromal vascular fraction for targeted improvement of wound healing. Wound Repair Regen 2017; 25:414-422. [PMID: 28464475 DOI: 10.1111/wrr.12542] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 04/10/2017] [Indexed: 12/21/2022]
Abstract
Wound healing remains a global issue of disability, cost, and health. Addition of cells from the stromal vascular fraction (SVF) of adipose tissue has been shown to increase the rate of full thickness wound closure. This study aimed to investigate the angiogenic mechanisms of CD248+ SVF cells in the context of full thickness excisional wounds. Single cell transcriptional analysis was used to identify and cluster angiogenic gene-expressing cells, which was then correlated with surface marker expression. SVF cells isolated from human lipoaspirate were FACS sorted based on the presence of CD248. Cells were analyzed for angiogenic gene expression and ability to promote microvascular tubule formation in vitro. Following this, 6mm full thickness dermal wounds were created on the dorsa of immunocompromised mice and then treated with CD248+, CD248-, or unsorted SVF cells delivered in a pullalan-collagen hydrogel or the hydrogel alone. Wounds were measured every other day photometrically until closure. Wounds were also evaluated histologically at 7 and 14 days post-wounding and when fully healed to assess for reepithelialization and development of neovasculature. Wounds treated with CD248+ cells healed significantly faster than other treatment groups, and at 7 days, had quantitatively more reepithelialization. Concurrently, immunohistochemistry of CD31 revealed a much higher presence of vascularity in the CD248+ SVF cells treated group at the time of healing and at 14 days post-op, consistent with a pro-angiogenic effect of CD248+ cells in vivo. Therefore, using CD248+ pro-angiogenic cells obtained from SVF presents a viable strategy in wound healing by promoting increased vessel growth in the wound.
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Affiliation(s)
- Elizabeth Brett
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Elizabeth R Zielins
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Monica Chin
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Michael Januszyk
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Charles P Blackshear
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Michael Findlay
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Arash Momeni
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Geoffrey C Gurtner
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Michael T Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California.,Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California
| | - Derrick C Wan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
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6
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Lail-Trecker M, Gulati R, Peluso JJ. A Role for Hepatocyte Growth Factors/Scatter Factor in Regulating Normal and Neoplastic Cells of Reproductive Tissues. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/107155769800500302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
| | - Rita Gulati
- Department of Obstetrics and Gynecology, University of Connecticut Health Center, Farmington, Connecticut
| | - John J. Peluso
- Department of Obstetrics and Gynecology, University of Connecticut Health Center, Farmington, CT 06030
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7
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Jaedicke KM, Preshaw PM, Taylor JJ. Salivary cytokines as biomarkers of periodontal diseases. Periodontol 2000 2015; 70:164-83. [DOI: 10.1111/prd.12117] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2015] [Indexed: 12/15/2022]
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8
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Alkafafy M, Montaser M, El-Shazly SA, Bazid S, Ahmed MM. Ethanolic extract of sharah, Plectranthus aegyptiacus, enhances healing of skin wound in rats. Acta Histochem 2014; 116:627-38. [PMID: 24382517 DOI: 10.1016/j.acthis.2013.11.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 11/21/2013] [Accepted: 11/25/2013] [Indexed: 11/16/2022]
Abstract
Sharah, Plectranthus aegyptiacus (Forssk.) C. Chr. is a common native plant in the Taif region of Saudi Arabia. An ethanolic extract of freeze dried sharah leaves was added as 10% (w/w) to an ointment base of beeswax and sesame oil. The resultant ointment was examined as a potential enhancer of wound healing. Excision wounds in the nape region of the skin were induced in sixty albino Wistar rats. Animals were allocated in 4 groups (n=15) and kept individually in clean cages. The first group served as negative untreated controls without medication; the second group was treated with ointment base (vehicle); the third group represented the positive control and was treated with a reference ointment and the fourth one served as the experimental group and received the test plant extract (as ointment). Animal groups received the respective medications for 14 successive days. Wounds were measured and photographed every 3 days till the end of the experiment (day 21) in order to determine the wound closure rate (WCR). Specimens from wounds and surrounding skin were collected from sacrificed animals for histological and molecular studies. Both morphometric (based on WCR) and histological findings showed that the healing in animals treated with the sharah plant extract was better than those in control group or vehicle-treated group and was similar to that in the group that received the reference ointment. Moreover, the molecular findings concerning the expression levels of hepatocyte growth factor (HGF) and its receptor (c-Met) displayed a reasonable healing enhancing effect of the plant extract with the expression levels of both being higher in the extract-treated group than in the control group.
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Affiliation(s)
- Mohamed Alkafafy
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia; Department of Cytology and Histology, College of Veterinary Medicine, University of Sadat City, Egypt
| | - Metwally Montaser
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia; Department of Zoology, College of Science, Al-Azhar University, Cairo, Egypt
| | - Samir A El-Shazly
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia; Department of Biochemistry, College of Veterinary Medicine, Kafrelsheikh University, Egypt
| | - Saleh Bazid
- Department of Biology, College of Science, Taif University, Taif, Saudi Arabia
| | - Mohamed M Ahmed
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia; Department of Biochemistry, College of Veterinary Medicine, University of Sadat City, Egypt.
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9
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Kim JS, Seo YC, No RH, Lee HY. Improved cosmetic activity by optimizing the Lithospermum erythrorhizon extraction process. Cytotechnology 2013; 67:51-65. [PMID: 24287611 DOI: 10.1007/s10616-013-9657-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2013] [Accepted: 10/05/2013] [Indexed: 11/28/2022] Open
Abstract
This study was conducted to expand the use of Lithospermum erythrorhizon, which is a good source of natural dye, in skin whitening and immune activation cosmetics. The goal was to provide cosmeceutical data about the extraction yield and shikonin contents of this plant by optimizing the ultrasonic extraction and high pressure extraction conditions. Under optimal extraction conditions, which consisted of 500 MPa for 60 min and 120 kHz for 90 min, 27.49 and 3.19 % (w/w) of the highest extraction yield and shikonin contents were obtained, compared to 16.32 and 1.81 % from a conventional ethanol extract (EE) control. Hyaluronidase inhibition activity was measured as 44.24 % after adding 1.0 mg/ml of ethanol extract, but it was as high as 64.19 % when using extract produced by ultrasonication with high pressure extraction (UE + HPE). The MMP-1 expression levels from skin fibroblast cells (CCD-986sk) treated with or without UV irradiation were also lowered by as much as 110.6 % after adding 1.0 mg/ml of the UE + HPE extract, relative to 126.9 % from the EE. After UVA exposure, prostaglandin E2 production from RAW 264.7 was also lower, at 110.6 %, which also indicates that the extract from the UE + HPE process enhanced skin immune activation activities. For the skin whitening activity, tyrosinase inhibitory activity was observed at 67.15 % in the HPE + UE extract, which was ca. 20 % higher than that of the EE extract (57.48 %). To reduce melanin production in Clone M-3 cells, 79.5 % of the melanin production was estimated after adding 1.0 mg/ml of the UE + HPE extract compared to that of the control (no treatment), which was similar to the 77.4 % result found in an ascorbic acid positive control. The highest shikonin secretion was conclusively obtained under the optimal conditions and resulted in a significant improvement of the cosmetic activities of L. erythrorhizon extracts.
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Affiliation(s)
- Ji Seon Kim
- Department of Medical Biomaterials Engineering, Kangwon National University, Chuncheon, Gangwon, 200-701, Republic of Korea
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10
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Takeda S, Liu H, Sasagawa S, Dong Y, Trainor PA, Cheng EH, Hsieh JJ. HGF-MET signals via the MLL-ETS2 complex in hepatocellular carcinoma. J Clin Invest 2013; 123:3154-65. [PMID: 23934123 DOI: 10.1172/jci65566] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 03/29/2013] [Indexed: 12/15/2022] Open
Abstract
HGF signals through its cognate receptor, MET, to orchestrate diverse biological processes, including cell proliferation, cell fate specification, organogenesis, and epithelial-mesenchymal transition. Mixed-lineage leukemia (MLL), an epigenetic regulator, plays critical roles in cell fate, stem cell, and cell cycle decisions. Here, we describe a role for MLL in the HGF-MET signaling pathway. We found a shared phenotype among Mll(-/-), Hgf(-/-), and Met(-/-) mice with common cranial nerve XII (CNXII) outgrowth and myoblast migration defects. Phenotypic analysis demonstrated that MLL was required for HGF-induced invasion and metastatic growth of hepatocellular carcinoma cell lines. HGF-MET signaling resulted in the accumulation of ETS2, which interacted with MLL to transactivate MMP1 and MMP3. ChIP assays demonstrated that activation of the HGF-MET pathway resulted in increased occupancy of the MLL-ETS2 complex on MMP1 and MMP3 promoters, where MLL trimethylated histone H3 lysine 4 (H3K4), activating transcription. Our results present an epigenetic link between MLL and the HGF-MET signaling pathway, which may suggest new strategies for therapeutic intervention.
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Affiliation(s)
- Shugaku Takeda
- Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, New York, USA
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11
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El-Telbany A, Ma PC. Cancer genes in lung cancer: racial disparities: are there any? Genes Cancer 2012; 3:467-80. [PMID: 23264847 DOI: 10.1177/1947601912465177] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Accepted: 09/18/2012] [Indexed: 12/11/2022] Open
Abstract
Cancer is now known as a disease of genomic alterations. Mutational analysis and genomics profiling in recent years have advanced the field of lung cancer genetics/genomics significantly. It is becoming more accepted now that the identification of genomic alterations in lung cancer can impact therapeutics, especially when the alterations represent "oncogenic drivers" in the processes of tumorigenesis and progression. In this review, we will highlight the key driver oncogenic gene mutations and fusions identified in lung cancer. The review will summarize and report the available demographic and clinicopathological data as well as molecular details behind various lung cancer gene alterations in the context of race. We hope to shed some light into the disparities in the incidence of various genetic mutations among lung cancer patients of different racial backgrounds. As molecularly targeted therapy continues to advance in lung cancer, racial differences in specific genetic/genomic alterations can have an important impact in the choices of therapeutics and in our understanding of the drug sensitivity/resistance profile. The most relevant genes in lung cancer described in this review include the following: EGFR, KRAS, MET, LKB1, BRAF, PIK3CA, ALK, RET, and ROS1. Commonly identified genetic/genomic alterations such as missense or nonsense mutations, small insertions or deletions, alternative splicing, and chromosomal fusion rearrangements were discussed. Relevance in current targeted therapeutic drugs was mentioned when appropriate. We also highlighted various targeted therapeutics that are currently under clinical development, such as the MET inhibitors and antibodies. With the advent of next-generation sequencing, the landscape of genomic alterations in lung cancer is expected to be much transformed and detailed in upcoming years. These genomic landscape differences in the context of racial disparities should be emphasized both in tumorigenesis and in drug sensitivity/resistance. It is hoped that such effort will help to diminish racial disparities in lung cancer outcome in the future.
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Affiliation(s)
- Ahmed El-Telbany
- Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA ; Case Western Reserve University School of Medicine, Cleveland, OH, USA
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12
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Erlotinib prevents experimental metastases of human small cell lung cancer cells with no epidermal growth factor receptor expression. Clin Exp Metastasis 2011; 29:207-16. [PMID: 22170031 DOI: 10.1007/s10585-011-9443-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Accepted: 12/06/2011] [Indexed: 02/07/2023]
Abstract
Epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) show dramatic antitumor activity in a subset of patients with non-small cell lung cancer who have an active mutation in the epidermal growth factor receptor (EGFR) gene. On the other hand, some lung cancer patients with wild type EGFR also respond to EGFR-TKIs, suggesting that EGFR-TKIs have an effect on host cells as well as tumor cells. However, the effect of EGFR-TKIs on host microenvironments is largely unknown. A multiple organ metastasis model was previously established in natural killer cell-depleted severe combined immunodeficient mice using human lung cancer cells. This model was used to investigate the therapeutic efficacy of erlotinib, an EGFR-TKI, on multiple organ metastases induced by human small cell lung cancer cells (SBC-5 cells) that did not express EGFR. Although erlotinib did not have any effect on the proliferation of SBC-5 cells in vitro, it significantly suppressed bone and lung metastases in vivo, but not liver metastases. An immunohistochemical analysis revealed that, erlotinib significantly suppressed the number of osteoclasts in bone metastases, whereas no difference was seen in microvessel density. Moreover, erlotinib inhibited EGF-induced receptor activator of nuclear factor kappa-B expression in an osteoblastic cell line (MC3T3-E1 cells). These results strongly suggested that erlotinib prevented bone metastases by affecting host microenvironments irrespective of its direct effect on tumor cells.
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Abstract
The MET tyrosine kinase signaling pathway is upregulated in many cancers, including lung cancer. The pathway normally promotes mitosis, cell motility and cell survival; but in cancer it can also promote cell proliferation, invasion, metastasis and angiogenesis. The activating ligand, hepatocyte growth factor (HGF) is normally secreted by fibroblasts and smooth muscle cells, but can also be produced by tumor cells. MET upregulation in lung cancer is caused by overexpression and mutation. These mutations can vary with ethnicity. MET signaling affects cytoskeletal proteins such as paxillin, which participates in cell adhesion, growth and motility. Therapeutic approaches that block MET signaling are being studied, and include the use of: small interference RNA, Geldanamycin, competitive HGF homologues, decoy receptors and direct MET inhibitors such as K252a, SU11274, PHA665752 and PF2341066. It is hoped that blocking MET signaling may one day become an effective treatment for some lung cancers.
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Affiliation(s)
- Ryan E Lawrence
- Pritzker School of Medicine, University of Chicago Medical Center, University of Chicago, Chicago, IL, USA
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14
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Cheng CC, Wang DY, Kao MH, Chen JK. The growth-promoting effect of KGF on limbal epithelial cells is mediated by upregulation of ΔNp63α through the p38 pathway. J Cell Sci 2009; 122:4473-80. [DOI: 10.1242/jcs.054791] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Corneal epithelial stem cells are thought to reside in the limbus, the transition zoon between cornea and conjunctiva. Keratinocyte growth factor (KGF) and hepatocyte growth factor (HGF) are two paracrine factors that regulate the proliferation, migration and differentiation of the limbal epithelial cells; however, the underlying mechanisms are still poorly understood. In an ex vivo limbal explant culture, we found that KGF is a more potent growth stimulator for the epithelial outgrowth than HGF. Immunofluorescence studies of the epithelial outgrowth from cells treated with HGF or KGF showed similar expression patterns of keratin-3 and keratin-14. Interestingly, p63 was highly expressed in KGF-treated limbal epithelial sheets but not in those treated with HGF. Kinase inhibitor studies showed that induction of ΔNp63α expression by KGF is mediated via the p38 pathway. The effect of KGF on limbal epithelial outgrowth was significantly reduced when endogenous ΔNp63α was suppressed, suggesting that KGF-induced limbal epithelial outgrowth is dependent on the expression of ΔNp63α. Our findings strongly suggest that limbal keratocytes regulate limbal epithelial cell growth and differentiation through a KGF paracrine loop, with ΔNp63α expression as one of the downstream targets.
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Affiliation(s)
- Chien-Chia Cheng
- Department of Physiology, College of Medicine, Chang Gung University, Kweishan, Taoyuan 333, Taiwan
| | - Der-Yuan Wang
- Section of Blood Products & IVDs, Drug Biology Division, Bureau of Food and Drug Analysis, Department of Health, Taiwan
| | - Ming-Hui Kao
- Section of Blood Products & IVDs, Drug Biology Division, Bureau of Food and Drug Analysis, Department of Health, Taiwan
| | - Jan-Kan Chen
- Department of Physiology, College of Medicine, Chang Gung University, Kweishan, Taoyuan 333, Taiwan
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15
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Mesenchymal stem cells facilitate recovery from chemically induced liver damage and decrease liver fibrosis. Life Sci 2009; 85:517-25. [DOI: 10.1016/j.lfs.2009.08.003] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2009] [Revised: 07/15/2009] [Accepted: 08/06/2009] [Indexed: 12/13/2022]
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16
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Delgado JP, Vanneaux V, Branger J, Touboul T, Sentilhes L, Mainot S, Lainas P, Leclerc P, Uzan G, Mahieu-Caputo D, Weber A. The role of HGF on invasive properties and repopulation potential of human fetal hepatic progenitor cells. Exp Cell Res 2009; 315:3396-405. [PMID: 19615360 DOI: 10.1016/j.yexcr.2009.07.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2009] [Revised: 07/07/2009] [Accepted: 07/08/2009] [Indexed: 01/25/2023]
Abstract
UNLABELLED The success of hepatocyte transplantation has been limited by the low efficiency of transplanted cell integration into liver parenchyma. Human fetal hepatic progenitor cells (hepatoblasts) engraft more effectively than adult hepatocytes in mouse livers. However, the signals required for their integration are not yet fully understood. We investigated the role of HGF on the migration and invasive ability of human hepatic progenitors in vitro and in vivo. Hepatoblasts were isolated from the livers of human fetuses between 10 and 12 weeks of gestation. Their invasive ability was assessed in the presence or absence of HGF. These cells were also transplanted into immunodeficient mice and analyzed by immunohistochemistry. In contrast to TNF-alpha, HGF increased the motogenesis and invasiveness of hepatoblasts, but not of human adult hepatocytes, via phosphorylation of extracellular signal-regulated kinase (ERK) 1/2. The invasive ability of human hepatoblasts correlated with the expression and secretion of matrix metalloproteinases (MMPs). Hepatoblasts stimulated with HGF prior transplantation into newborn mice migrated from the portal area into the hepatic parenchyma. CONCLUSIONS In contrast to adult hepatocytes, hepatoblasts display invasive ability that can be modulated by HGF in vitro and in vivo.
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Affiliation(s)
- Jean-Paul Delgado
- Inserm U972, University Paris-Sud, IFR 69, Hôpital du Kremlin-Bicêtre, Le Kremlin-Bicêtre, France
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17
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Ono I, Yamashita T, Hida T, Jin HY, Ito Y, Hamada H, Akasaka Y, Ishii T, Jimbow K. Combined administration of basic fibroblast growth factor protein and the hepatocyte growth factor gene enhances the regeneration of dermis in acute incisional wounds. Wound Repair Regen 2009. [DOI: 10.1111/j.1067-1927.2004.012113.x-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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18
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Drug development against metastasis-related genes and their pathways: a rationale for cancer therapy. Biochim Biophys Acta Rev Cancer 2008; 1786:87-104. [PMID: 18692117 DOI: 10.1016/j.bbcan.2008.07.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2007] [Revised: 03/27/2008] [Accepted: 07/10/2008] [Indexed: 12/18/2022]
Abstract
It is well recognized that the majority of cancer related deaths is caused by metastatic diseases. Therefore, there is an urgent need for the development of therapeutic intervention specifically targeted to the metastatic process. In the last decade, significant progress has been made in this research field, and many new concepts have emerged that shed light on the molecular mechanism of metastasis cascade which is often portrayed as a succession of six distinct steps; localized invasion, intravasation, translocation, extravasation, micrometastasis and colonization. Successful metastasis is dependent on the balance and complex interplay of both the metastasis promoters and suppressors in each step. Therefore, the basic strategy of our interventions is aimed at either blocking the promoters or potentiating the suppressors in this disease process. Toward this goal, various kinds of antibodies and small molecules have been designed. These include agents that block the ligand-recepter interaction of metastasis promoters (HGF/c-Met), antagonize the metastasis-promoting enzymes (AMF, uPA and MMP) and inhibit the transcriptional activity of metastasis promoter (beta-Catenin). On the other hand, the intriguing roles of metastasis suppressors and their signal pathways have been extensively studied and various attempts have been made to potentiate these factors. Small molecules have been developed to restore the expression or mimic the function of metastasis-suppressor genes such as NM23, E-cadherin, Kiss-1, MKK4 and NDRG1, and some of them are under clinical trials. This review summarizes our current understanding of the molecular pathway of tumor metastasis and discusses strategies and recent development of anti-metastatic drugs.
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Mildner M, Mlitz V, Gruber F, Wojta J, Tschachler E. Hepatocyte Growth Factor Establishes Autocrine and Paracrine Feedback Loops for the Protection of Skin Cells after UV Irradiation. J Invest Dermatol 2007; 127:2637-44. [PMID: 17597814 DOI: 10.1038/sj.jid.5700938] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Hepatocyte growth factor (HGF) is a multifunctional cytokine, which, among various other activities, acts as a growth factor for melanocytes and has recently been implicated in the pathogenesis of malignant melanoma. In the skin, the main source for HGF is dermal fibroblasts (FB). Here, we have investigated the regulation of HGF production and secretion by cytokines derived from UV-irradiated keratinocytes (KC) and by direct UV irradiation. We demonstrate that supernatants of ultraviolet (UV)B-irradiated KC strongly induce HGF production in FB, and that this effect was mediated primarily by IL-1alpha. Direct irradiation of FB with UVB had no effect on HGF expression. In contrast, irradiation with UVA1 strongly upregulated HGF mRNA production and secretion of the functional protein. Addition of neutralizing anti-HGF antibodies after UVA1 irradiation, as well as transfection of FB with HGF small-interfering RNA (siRNA); which completely abrogated HGF secretion led to a dramatic rise of FB apoptosis demonstrating that autocrine HGF efficiently protected FB from UVA1-induced apoptosis. Our data suggest that upregulation of HGF plays a role in skin homeostasis after UV irradiation. However, a negative side effect of UV-induced HGF secretion by dermal FB might represent a decisive factor for induction and/or progression of melanoma.
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Affiliation(s)
- Michael Mildner
- Department of Dermatology, Medical University Vienna, Vienna, Austria
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20
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Aiba-Kojima E, Tsuno NH, Inoue K, Matsumoto D, Shigeura T, Sato T, Suga H, Kato H, Nagase T, Gonda K, Koshima I, Takahashi K, Yoshimura K. Characterization of wound drainage fluids as a source of soluble factors associated with wound healing: comparison with platelet-rich plasma and potential use in cell culture. Wound Repair Regen 2007; 15:511-20. [PMID: 17650095 DOI: 10.1111/j.1524-475x.2007.00259.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Wound fluids, human serum from platelet-poor and platelet-rich plasma (SPPP and SPRP), contain various soluble factors involved in cell growth and proliferation. Levels of cytokines, chemokines, and matrix metalloproteinases (MMPs) in drainage fluids (DFs) harvested from subcutaneous wounds, punctured fluids (PF) from seroma, and SPPP were measured. SPPP and SPRP from four healthy volunteers were also subjected to the analysis. Biochemical profiles of DF reflected the sequential stages of wound healing. Early-phase DF contained high concentrations of basic fibroblast growth factor and platelet-derived growth factor and EGF. The levels of keratinocyte growth factor, interleukin-6, and MMP-8 in DF peaked on days 2-3, while vascular endothelial growth factor, hepatocyte growth factor, interleukin-8, and MMP-1 increased over time during days 0-6. Punctured fluids contained high levels of TGF-beta1, keratinocyte growth factor, vascular endothelial growth factor, hepatocyte growth factor, and MMP-1. Experiments using human adipose-derived stem cells and dermal fibroblasts cultured in media containing various concentrations of DF and fetal bovine serum suggested that for some cell types, DF-contained growth factors that are not obtained from SPRP could be used to supplement or substitute for serum in culture media. SPRP and DF are economical ready-made mixtures of serum and autologous soluble factors, and may be differentially useful for regenerative therapies.
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Affiliation(s)
- Emiko Aiba-Kojima
- Department of Plastic Surgery, University of Tokyo Hospital, Tokyo, Japan
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21
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Athauda G, Giubellino A, Coleman JA, Horak C, Steeg PS, Lee MJ, Trepel J, Wimberly J, Sun J, Coxon A, Burgess TL, Bottaro DP. c-Met ectodomain shedding rate correlates with malignant potential. Clin Cancer Res 2007; 12:4154-62. [PMID: 16857786 DOI: 10.1158/1078-0432.ccr-06-0250] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Many proteins are proteolytically released from the cell surface by a process known as ectodomain shedding. Shedding occurs under normal physiologic conditions and can be increased in certain pathologies. Among the many receptors for which ectodomain shedding has been shown is c-Met, the hepatocyte growth factor (HGF) receptor tyrosine kinase. HGF stimulates mitogenesis, motogenesis, and morphogenesis in a variety of cellular targets during development, homeostasis, and tissue regeneration. Inappropriate HGF signaling resulting in unregulated cell proliferation, motility, and invasion occurs in several human malignancies. This can occur through paracrine signaling, autocrine loop formation, receptor mutation, gene amplification, or gene rearrangement, accompanied frequently with overexpression of ligand and/or receptor proteins. We hypothesized that c-Met overexpression in cancer might result in increased ectodomain shedding, and that its measure could be a useful biomarker of tumor progression. EXPERIMENTAL DESIGN We developed a sensitive electrochemiluminescent immunoassay to quantitate c-Met protein in cell lysates, culture supernatants, and biological samples. RESULTS A survey of cultured cell models of oncogenic transformation revealed significant direct correlations (P < 0.001, t test or ANOVA) between malignant potential and the rate of c-Met ectodomain shedding that was independent of steady-state receptor expression level. Moreover, weekly plasma and urine samples from mice harboring s.c. human tumor xenografts (n = 4 per group) displayed soluble human c-Met levels that were measurable before tumors became palpable and that correlated directly with tumor volume (R2 > 0.92, linear regression). CONCLUSIONS For a variety of human cancers, c-Met ectodomain shedding may provide a reliable and practical indicator of malignant potential and overall tumor burden.
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Affiliation(s)
- Gagani Athauda
- Urologic Oncology Branch, Laboratory of Molecular Pharmacology, and Medical Oncology Branch, National Cancer Institute, NIH, Bethesda, Maryland 20892-1107, USA
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22
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O'Toole EA, van Koningsveld R, Chen M, Woodley DT. Hypoxia induces epidermal keratinocyte matrix metalloproteinase-9 secretion via the protein kinase C pathway. J Cell Physiol 2007; 214:47-55. [PMID: 17559070 DOI: 10.1002/jcp.21160] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Hypoxia promotes keratinocyte migration on wound bed connective tissues and is a profound biological signal that transforms a basal keratinocyte, destined to differentiate, into a motile cell that is essential for re-epithelialization. In this study, we examined the effect of hypoxia on keratinocyte-derived collagenases associated with keratinocyte migration. Cells plated on various connective tissue matrices under normoxic and hypoxic conditions, demonstrated a two-fold increase in the 92 kDa, type IV collagenase (MMP-9) when examined by quantitative zymography and ELISA. Western blotting and ELISA demonstrated a two-fold increase in tissue inhibitor of metalloproteinase (TIMP-1), an enzyme that binds to MMP-9 and inhibits its activity. The hypoxia-induced increase in cell motility could be inhibited by a neutralizing antibody to MMP-9. Northern blotting demonstrated that MMP-9 and TIMP-1 mRNA increased 2.5- to 4-fold, 2-12 h after the cells were made hypoxic. The hypoxia-induced changes in MMP-9 and TIMP-1 were inhibited by staurosporine and bisindolylmaleimide, inhibitors of protein kinase C (PKC), but not by inhibitors of tyrosine phosphorylation and the mitogen-activated protein kinase pathway. Inhibition of PKC also inhibited hypoxia-induced keratinocyte migration on type I collagen. These data provide evidence that hypoxia-induced keratinocyte migration is mediated by increased cellular secretion of MMP-9 via the PKC pathway.
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Affiliation(s)
- Edel A O'Toole
- Centre for Cutaneous Research, ICMS, Barts and the London School of Medicine and Dentistry, Queen Mary, University of London, London, United Kingdom.
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Conway K, Price P, Harding KG, Jiang WG. The molecular and clinical impact of hepatocyte growth factor, its receptor, activators, and inhibitors in wound healing. Wound Repair Regen 2006. [PMID: 16476066 DOI: 10.1111/j.1524-475x.2005.00081.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Wound healing involves a number of cellular and molecular events, many of which are controlled by soluble growth factors. In the process of healing, hepatocyte growth factor, a cytokine known to act as mitogen, motogen, and morphogen, has been postulated to play multiple roles during several stages of this complex biological process. Produced primarily by stromal fibroblasts, hepatocyte growth factor regulates angiogenesis, vascular permeability, cell migration, matrix deposition and degradation, and other biological processes. The current article discusses recent progress in understanding the multiple roles played by this growth factor in tissue repair.
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Affiliation(s)
- Kevin Conway
- Metastasis and Angiogenesis Research Group, Wales College of Medicine, Cardiff University, Cardiff, United Kingdom.
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24
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Xia S, Laterra J. Hepatocyte growth factor increases mitochondrial mass in glioblastoma cells. Biochem Biophys Res Commun 2006; 345:1358-64. [PMID: 16730650 DOI: 10.1016/j.bbrc.2006.05.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2006] [Accepted: 05/02/2006] [Indexed: 01/26/2023]
Abstract
Hepatocyte growth factor/scatter factor (HGF) is a multifunctional growth factor that is linked to the initiation and/or progression of numerous malignancies. HGF also alters cancer cell responses to DNA damaging cytotoxic agents. Many cell responses to Met activation require alterations in metabolic activity but how the metabolic machinery responds to Met activation remains poorly defined. Treating human glioblastoma cells with HGF followed by the topoisomerase inhibitor camptothecin was found to increase the activity per cell of the mitochondrial respiratory chain enzyme succinate-tetrazolium reductase (>80% increase, p < 0.05) and the tricarboxylic acid cycle enzyme succinate dehydrogenase (>25% increase, p < 0.05). Treatment with either HGF or camptothecin alone had no effect on enzyme activity. The mitochondrial enzymatic response to HGF was dose- and time-dependent with the maximum increase occurring in cells pre-treated with 30 ng/ml HGF for 48h prior to camptothecin exposure. This enzymatic response was associated with a concurrent increase in mitochondrial mass of comparable magnitude (approximately 56%, p < 0.05) as measured by fluorescent mitochondrial staining and flow cytometry. The mitochondrial mass response to HGF was prevented by the MAP-kinase pathway inhibitor PD98059 and was unaffected by the phosphatidylinositol 3-kinase inhibitors LY294002 and wortmannin. These findings suggest that HGF influences cell responses to chemotherapeutic stress, in part, by altering mitochondrial functions through a MAP-kinase dependent increase in mitochondrial mass.
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Affiliation(s)
- Shuli Xia
- The Kennedy-Krieger Institute, The Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
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25
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Lasagna N, Fantappiè O, Solazzo M, Morbidelli L, Marchetti S, Cipriani G, Ziche M, Mazzanti R. Hepatocyte growth factor and inducible nitric oxide synthase are involved in multidrug resistance-induced angiogenesis in hepatocellular carcinoma cell lines. Cancer Res 2006; 66:2673-82. [PMID: 16510587 DOI: 10.1158/0008-5472.can-05-2290] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Based on literature, it is possible to hypothesize that multidrug resistance (MDR) and angiogenic phenotypes are linked to each other in human liver cancer cells. Our goal is to assess whether MDR cells trigger angiogenesis and to study the possible molecular mechanisms involved. Conditioned medium from parental drug-sensitive P5 cells (P5-CM) and MDR-positive P1(0.5) cells [P1(0.5)-CM] stimulated human umbilical vein endothelial cells (HUVEC) survival, proliferation, migration, and microtubular structure formation, but P1(0.5)-CM had a significantly greater effect than P5-CM. Cell implants were done in the rabbit avascular cornea to measure angiogenesis in vivo: P1(0.5) cells induced an important neovascular response in rabbit cornea after 1 week, whereas P5 cells had no effect. P1(0.5) and P5 cells produced vascular endothelial growth factor, but only P1(0.5) secreted hepatocyte growth factor (HGF) into the medium, and small interfering RNA specific for MDR1 clearly reduced HGF production in P1(0.5) cells. The transcription factor Ets-1 and the HGF receptor c-Met were up-regulated in P1(0.5) cells and in HUVEC cultured in P1(0.5)-CM. Inducible nitric oxide synthase (iNOS) seemed to play a major role in the proangiogenic effect of P1(0.5), and its inhibition by 1400W blunted the capacity of P1(0.5) cells to stimulate HUVEC proliferation, migration, and Ets-1 expression. In conclusion, these data show that development of MDR and angiogenic phenotypes are linked to each other in MDR cells. HGF production, Ets-1 and c-Met up-regulation, and iNOS expression can be part of the molecular mechanisms that enhance the angiogenic activity of the MDR-positive hepatocellular carcinoma cell line.
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Affiliation(s)
- Nadia Lasagna
- Department of Internal Medicine, Postgraduate School in Oncology, DENOthe, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
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26
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Sattler M, Ma PC, Salgia R. Therapeutic targeting of the receptor tyrosine kinase Met. Cancer Treat Res 2006; 119:121-38. [PMID: 15164876 DOI: 10.1007/1-4020-7847-1_7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Martin Sattler
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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27
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Uehara A, Muramoto K, Imamura T, Nakayama K, Potempa J, Travis J, Sugawara S, Takada H. Arginine-specific gingipains from Porphyromonas gingivalis stimulate production of hepatocyte growth factor (scatter factor) through protease-activated receptors in human gingival fibroblasts in culture. THE JOURNAL OF IMMUNOLOGY 2005; 175:6076-84. [PMID: 16237103 DOI: 10.4049/jimmunol.175.9.6076] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Cystein proteinases (gingipains) from Porphyromonas gingivalis cleave a broad range of in-host proteins and are considered to be key virulence factors in the onset and development of adult periodontitis and host defense evasion. In periodontitis, an inflammatory disease triggered by bacterial infection, the production of hepatocyte growth factor (HGF) is induced not only by various factors derived from the host, such as inflammatory cytokines, but also by bacterial components. In this study we examined the possible enhanced production of HGF produced by human gingival fibroblasts upon stimulation with gingipains. Arginine-specific gingipain (Rgp) caused a marked production of HGF into the supernatant, the induction of HGF expression on the cell surface, and the up-regulation of HGF mRNA expression in a dose-dependent and an enzymatic activity-dependent manner. Because it has been reported that Rgp activated protease-activated receptors (PARs), we examined whether the induction of HGF triggered by Rgps on human gingival fibroblasts occurred through PARs. An RNA interference assay targeted to PAR-1 and PAR-2 mRNA revealed that gingipains-induced secretion of HGF was significantly inhibited by RNA interference targeted to PAR-1 and PAR-2. In addition, the Rgps-mediated HGF induction was completely inhibited by the inhibition of phospholipase C and was clearly inhibited by RNA interference targeted to p65, which is an NF-kappaB component. These results suggest that Rgps activated human gingival fibroblasts to secrete HGF in the inflamed sites and the mechanism(s) involved may actively participate in both inflammatory and reparative processes in periodontal diseases.
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Affiliation(s)
- Akiko Uehara
- Department of Microbiology and Immunology, Tohoku University Graduate School of Dentistry, Sendai, Japan.
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28
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Stella MC, Trusolino L, Pennacchietti S, Comoglio PM. Negative feedback regulation of Met-dependent invasive growth by Notch. Mol Cell Biol 2005; 25:3982-96. [PMID: 15870272 PMCID: PMC1087707 DOI: 10.1128/mcb.25.10.3982-3996.2005] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The hepatocyte growth factor (HGF) receptor encoded by the Met oncogene controls a genetic program-known as "invasive growth"-responsible for several developmental processes and involved in cancer invasion and metastasis. This program functions through several regulatory gene products, as yet largely unknown, both upstream and downstream of Met. Here we show that activation of the Notch receptor results in transcriptional down-regulation of Met, suppression of HGF-dependent Ras signaling, and impairment of HGF-dependent cellular responses. In turn, Met activation leads to transcriptional induction of the Notch ligand Delta and the Notch effector HES-1, indicating that Met is able to self-tune its own protein levels and the ensuing biochemical and biological outputs through stimulation of the Notch pathway. By using branching morphogenesis of the tracheal system in Drosophila as a readout of invasive growth, we also show that exogenous expression of a constitutively active form of human Met induces enhanced sprouting of the tracheal tree, a phenotype that is further increased in embryos lacking Notch function. These results unravel an in-built mechanism of negative feedback regulation in which Met activation leads to transcriptional induction of Notch function, which in turn limits HGF activity through repression of the Met oncogene.
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Affiliation(s)
- M Cristina Stella
- Institute for Cancer Research and Treatment, University of Turin School of Medicine, Division of Molecular Oncology, IV Floor, Str. Prov. 142, Km. 3,95, 10060 Candiolo, Torino, Italy.
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29
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Kim WH, Matsumoto K, Bessho K, Nakamura T. Growth inhibition and apoptosis in liver myofibroblasts promoted by hepatocyte growth factor leads to resolution from liver cirrhosis. THE AMERICAN JOURNAL OF PATHOLOGY 2005; 166:1017-28. [PMID: 15793283 PMCID: PMC1602371 DOI: 10.1016/s0002-9440(10)62323-1] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Liver cirrhosis is characterized by hepatic dysfunction with extensive accumulation of fibrous tissue in the liver. In response to chronic hepatic injury, hepatic portal myofibroblasts and activated hepatic stellate cells (HSCs) play a role in liver fibrosis. Although administration or gene expression of hepatocyte growth factor (HGF) leads to improvement in hepatic fibrosis/cirrhosis, the related mechanisms are not fully understood. We investigated mechanisms involved in resolution from liver cirrhosis by HGF, focusing on growth regulation and apoptosis in portal myofibroblasts. Cultured rat HSCs could not proliferate, were withdrawn after passage, and were replaced by proliferating portal myofibroblasts during the passages. In quiescent HSCs, c-Met receptor expression was undetected whereas c-Met receptor expression was detected in activated HSCs and liver myofibroblasts expressing alpha-smooth muscle actin (alpha-SMA), suggesting that activated HSCs and portal myofibroblasts are targets of HGF. For cultured rat portal myofibroblasts, HGF counteracted phosphorylation of extracellular signal-regulated kinase (Erk) 1/2 and mitogenic stimulus induced by platelet-derived growth factor, induced c-jun N-terminal kinase (JNK) 1 phosphorylation, and promoted apoptotic cell death. In the dimethylnitrosamine rat model of liver cirrhosis, administration of HGF suppressed proliferation while promoting apoptosis of alpha-SMA-positive cells in the liver, events that were associated with reduced hepatic expressions of alpha-SMA and histological resolution from liver cirrhosis. Growth inhibition and enhanced apoptosis in portal myofibroblasts by HGF are newly identified mechanisms aiding resolution from liver fibrosis/cirrhosis by HGF.
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Affiliation(s)
- Wook-Hwan Kim
- Division of Molecular Regenerative Medicine, Course of Advanced Medicine, Osaka University Graduate School of Medicine, Yamada-oka 2-2-B7, Suita, Osaka 565-0871, Japan
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30
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Jiang WG, Martin TA, Parr C, Davies G, Matsumoto K, Nakamura T. Hepatocyte growth factor, its receptor, and their potential value in cancer therapies. Crit Rev Oncol Hematol 2005; 53:35-69. [PMID: 15607934 DOI: 10.1016/j.critrevonc.2004.09.004] [Citation(s) in RCA: 187] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2004] [Indexed: 12/22/2022] Open
Abstract
Hepatocyte growth factor plays multiple roles in cancer, by acting as a motility and invasion stimulating factor, promoting metastasis and tumour growth. Furthermore, it acts as a powerful angiogenic factor. The pivotal role of this factor in cancer has indicated HGF as being a potential target in cancer therapies. The past few years have seen rapid progress in developing tools in targeting HGF, in the context of cancer therapies, including development of antagonists, small compounds, antibodies and genetic approaches. The current article discusses the potential value of HGF and its receptor as targets in cancer therapies, the current development in anti-HGF research, and the clinical value of HGF in prognosis and treatment.
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Affiliation(s)
- Wen G Jiang
- Metastasis and Angiogenesis Research Group, University Department of Surgery, Wales College of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
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31
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Parrinello S, Coppe JP, Krtolica A, Campisi J. Stromal-epithelial interactions in aging and cancer: senescent fibroblasts alter epithelial cell differentiation. J Cell Sci 2005; 118:485-96. [PMID: 15657080 PMCID: PMC4939801 DOI: 10.1242/jcs.01635] [Citation(s) in RCA: 419] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Cellular senescence suppresses cancer by arresting cells at risk of malignant tumorigenesis. However, senescent cells also secrete molecules that can stimulate premalignant cells to proliferate and form tumors, suggesting the senescence response is antagonistically pleiotropic. We show that premalignant mammary epithelial cells exposed to senescent human fibroblasts in mice irreversibly lose differentiated properties, become invasive and undergo full malignant transformation. Moreover, using cultured mouse or human fibroblasts and non-malignant breast epithelial cells, we show that senescent fibroblasts disrupt epithelial alveolar morphogenesis, functional differentiation and branching morphogenesis. Furthermore, we identify MMP-3 as the major factor responsible for the effects of senescent fibroblasts on branching morphogenesis. Our findings support the idea that senescent cells contribute to age-related pathology, including cancer, and describe a new property of senescent fibroblasts - the ability to alter epithelial differentiation - that might also explain the loss of tissue function and organization that is a hallmark of aging.
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Affiliation(s)
- Simona Parrinello
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Jean-Philippe Coppe
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Ana Krtolica
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Judith Campisi
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Buck Institute for Age Research, Novato, CA 94945, USA
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Bandow K, Ohnishi T, Tamura M, Semba I, Daikuhara Y. Hepatocyte growth factor/scatter factor stimulates migration of muscle precursors in developing mouse tongue. J Cell Physiol 2004; 201:236-43. [PMID: 15334658 DOI: 10.1002/jcp.20056] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Hepatocyte growth factor (HGF) stimulates the migration of myogenic cells during the development of skeletal muscles. The inactivation of HGF genes or that of its receptor, c-met, in mice causes hypoplasia of skeletal muscle organs, such as the tongue. Basic fibroblast growth factor (FGF-2) also induces migration of skeletal myoblasts. A comparison of the functions of HGF and FGF-2 in myogenesis revealed the crucial effect of HGF in the development of skeletal muscles. Unlike FGF-2, HGF induced migration of myoblasts from the developing mouse tongue. The differences between the activities of HGF and FGF-2 were determined by comparing their effects on the expression of matrix metalloproteinase-9 (MMP-9) in myoblasts, C2C12 cells, cultured in collagen-coated dishes. The results showed that HGF, but not FGF-2, stimulated MMP-9 expression, and that the stimulation was mediated through the activation of phosphoinositide 3-kinase (PI3K) which was not associated with FGF-2 signal transduction. Nevertheless, both growth factors exerted almost the same effect on the reduction of myogenin expression in, and on the proliferation of, C2C12 cells, suggesting that HGF, rather than FGF-2, plays a crucial role in the generation of skeletal muscles, including the tongue. Moreover, the specific role of HGF through the PI3K signal pathway is the induction of MMP-9 expression in, and the migration of, myoblasts.
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Affiliation(s)
- Kenjiro Bandow
- Division of Biochemistry and Molecular Dentistry, Department of Developmental Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, 35-1 Sakuragaoka-8, Kagoshima, Japan
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Duan HF, Wu CT, Lu Y, Wang H, Liu HJ, Zhang QW, Jia XX, Lu ZZ, Wang LS. Sphingosine kinase activation regulates hepatocyte growth factor induced migration of endothelial cells. Exp Cell Res 2004; 298:593-601. [PMID: 15265705 DOI: 10.1016/j.yexcr.2004.04.049] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2003] [Revised: 04/26/2004] [Accepted: 04/30/2004] [Indexed: 01/12/2023]
Abstract
Hepatocyte growth factor (HGF)-induced migration of endothelial cells is critical for angiogenesis. Sphingosine kinase (SPK) is a key enzyme catalyzing the formation of sphingosine-1-phosphate (S1P), a lipid messenger that is implicated in the regulation of a wide variety of important cellular events through both intracellular and extracellular mechanisms. The aim of this study was to investigate whether activation of SPK is involved in the migration of endothelial cells induced by HGF. The biological functions of HGF are mediated through the activation of its high-affinity tyrosine kinase receptor, c-met protooncogene. In the present study, Treatment of ECV304 endothelial cells with HGF resulted in tyrosine phosphorylation of c-Met and activation of SPK in a concentration-dependent manner. Either Ly294002 or PD98059, specific inhibitor of the PI3K and ERK/MAPK pathways, respectively, blocked the HGF-induced activation of SPK. HGF stimulation significantly increased intracellular S1P level, but no detectable secretion of S1P into the cell culture medium was observed. Treatment of ECV304 cells with pertussis toxin (PTX) has no effect on the HGF-induced migration, indicating extracellular S1P is dispensable for this process. Overexpression of wild-type SPK gene in ECV 304 cells increased the intracellular S1P and enhanced the HGF-induced migration, whereas inhibition of cellular SPK activity by N,N-dimethylsphingosine (DMS), a potent inhibitor of SPK, or by expression of a dominant-negative SPK (DN-SK) blocked the HGF-induced migration of ECV 304 cells. It is suggested that PI3K and ERK/MAPK mediated the activation of SPK and would be involved in the HGF-induced migration of endothelial cells. These results elucidate a novel mechanism by which intracellularly generated S1P mediates signaling from HGF/c-Met to the endothelial cell migration.
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Affiliation(s)
- Hai-Feng Duan
- Department of Experimental Hematology, Beijing Institute of Radiation Medicine, Beijing 100850, People's Republic of China
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Kim JH, Cho YH, Park SM, Lee KE, Lee JJ, Lee BC, Pyo HB, Song KS, Park HD, Yun YP. Antioxidants and inhibitor of matrix metalloproteinase-1 expression from leaves of Zostera marina L. Arch Pharm Res 2004; 27:177-83. [PMID: 15022719 DOI: 10.1007/bf02980103] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In order to develop new anti-photoaging agents, we examined the antioxidative activity and the inhibition effect of matrix metalloproteinase-1 (MMP-1) on the extracts of a marine product, Zostera marina L., which is known for its potent activity. Three compounds (compounds 1, 2, and 3) were isolated from an ethyl acetate (EtOAc) soluble fraction of the product; they were identified as apigenin-7-O-beta-D-glucoside (1), chrysoeriol (2), and luteolin (3). These compounds were found to scavenge radicals and reactive oxygen species (ROS) and were measured to have SC50 values of 0.18 mM, 0.68 mM, and 0.01 mM against the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and 0.04 mM, 0.03 mM, and 0.01 mM against the superoxide radical in the xanthine/xanthine oxidase system, respectively. Compound 3 suppressed the expression of MMP-1 by up to 44% at 4.0 microM and inhibited the production of interleukin 6 (IL-6), which is known as a cytokine that induces MMP-1 expression. From these results, compound 3 and the other compounds were determined to have antioxidative activity and to inhibit MMP-1 expression. Thus, the three compounds are expected to be useful for preventing the photoaging of skin.
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Affiliation(s)
- Jin Hui Kim
- R&D Center, Hanbul Cosmetic Corporation, 72-7 Yongsung-ri, Samsung-Myun, Umsung-Kun, Chungbuk 369-830, Korea.
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35
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Furuyama A, Mochitate K. Hepatocyte growth factor inhibits the formation of the basement membrane of alveolar epithelial cells in vitro. Am J Physiol Lung Cell Mol Physiol 2004; 286:L939-46. [PMID: 14672920 DOI: 10.1152/ajplung.00238.2002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Hepatocyte growth factor (HGF) is a pulmotrophic factor for the regeneration of injured pulmonary tissue. We investigated the role of HGF in basement membrane formation during wound healing by immortalized alveolar type II epithelial cells that could form a continuous basement membrane when they were cultured on collagen fibrils in the presence of entactin-contaminated laminin-1. Cells cultured with 5.0 ng/ml HGF neither formed a continuous basement membrane on collagen fibrils nor maintained a continuous basement membrane architecture on a basement membrane substratum. The cells showed increased secretion of matrix metalloproteinase-9 and urokinase-type plasminogen activator, and the HGF-induced inhibition of basement membrane formation was attenuated by addition of 200 ng/ml tissue inhibitor of matrix metalloproteinase-1. Cells sequentially exposed to HGF and 1.0 ng/ml transforming growth factor-β1 had enhanced basement membrane formation compared with those receiving these reagents in the reverse order or concurrently. HGF simultaneously stimulated proliferation and migration of the cells so that it advanced wound closure on the basement membrane substratum. The present results indicate that the role of HGF in wound healing is the stimulation of reepithelization, but this factor may also contribute to the degradation of the basement membrane.
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Affiliation(s)
- Akiko Furuyama
- Inhalation Toxicology Team, PM2.5 & DEP Research Project, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.
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Ohnishi T, Daikuhara Y. Hepatocyte growth factor/scatter factor in development, inflammation and carcinogenesis: its expression and role in oral tissues. Arch Oral Biol 2004; 48:797-804. [PMID: 14596869 DOI: 10.1016/s0003-9969(03)00180-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Hepatocyte growth factor (HGF) was discovered as a potent mitogen for adult hepatocytes from the plasma of patients with fulminant hepatic failure. It is now known to be a broad-spectrum, multi-functional mitogen, motogen and morphogen. The activities of HGF are mediated through the signalling pathway of its receptor, c-Met. During tooth development, HGF is expressed in the dental papilla and c-Met is expressed in the inner enamel epithelium. The expression of HGF and c-Met indicates that HGF is involved in morphogenesis of the tooth by mediating epithelial-mesenchymal interactions. In the mature tooth, HGF expression by fibroblasts is enhanced in pulpitis and mediated through the induction of prostaglandin (PG) E(2); it is induced not only by inflammatory cytokines, but also by components of oral bacteria. Consequently, concentrations of HGF in gingival crevicular fluid (GCF) increase in periodontitis. The mitogenic and other biological activities, such as angiogenesis, of HGF contribute towards wound healing. Both HGF and c-Met are expressed in the developing tongue, and the signalling pathway of the latter is shown to be essential for myogenesis. Dysregulation of c-Met signalling is observed in carcinogenesis, but HGF also has cytotoxic activity to certain tumour cells. The reason for the discrepancy between these observations is not clear at present.
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Affiliation(s)
- Tomokazu Ohnishi
- Department of Biochemistry, Kagoshima University Dental School, 35-1 Sakuragaoka-8, 890, Kagoshima, Japan
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37
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Zhang KX, Ward KR, Schrader JW. Multiple Aspects of the Phenotype of Mammary Epithelial Cells Transformed by Expression of Activated M-Ras Depend on an Autocrine Mechanism Mediated by Hepatocyte Growth Factor/Scatter Factor. Mol Cancer Res 2004. [DOI: 10.1158/1541-7786.242.2.4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Multiple aspects of the transformed phenotype induced in a murine mammary epithelial cell line scp-2 by expression of activated G22V M-Ras, including maintainance of cell number at low density, anchorage-independent growth, invasion of Matrigel, and secretion of matrix metalloproteinases (MMP) 2 and 9, were dependent on an autocrine mechanism. Conditioned medium from dense cultures of scp-2 cells expressing G22V M-Ras, but not from parental cells, induced activation of Erk and Akt in cells expressing G22V M-Ras, maintained the cell number and promoted anchorage-independent growth of cells expressing G22V M-Ras (although not the parental cells), and induced scattering of MDCK cells. The latter activities were blocked by neutralizing antibodies to hepatocyte growth factor/scatter factor (HGF/SF) and could be mimicked by HGF/SF. Anti-HGF/SF antibodies also inhibited invasion of Matrigel, and the production of MMP-2 and MMP-9, together with urokinase-type plasminogen activator, was secreted by G22V M-Ras scp-2 cells but not by parental cells. Invasion of Matrigel was blocked by an inhibitor of MMPs, BB94, and by the mitogen-activated protein kinase kinase 1/2 kinase inhibitor PD98059 but was only marginally affected by the phosphatidylinositol 3-kinase inhibitor LY294002. Autocrine HGF/SF was thus critical for expression of key features of the phenotype of mammary epithelial cells transformed by expression of activated M-Ras.
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Affiliation(s)
- Kai-Xin Zhang
- The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Katherine R. Ward
- The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - John W. Schrader
- The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
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Crouch S, Spidel CS, Lindsey JS. HGF and ligation of alphavbeta5 integrin induce a novel, cancer cell-specific gene expression required for cell scattering. Exp Cell Res 2004; 292:274-87. [PMID: 14697335 DOI: 10.1016/j.yexcr.2003.09.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Hepatocyte growth factor (HGF), a cytokine involved in tumorigenesis and most metastases, initiates cell migration by binding to the protooncogene c-Met receptor. In epithelial carcinoma cells, c-Met activation causes the breakdown of E-cadherin cell-cell contacts leading to cell spreading. While the breakdown of E-cadherin contacts is immediate, HGF-induced migration requires transcription. To test the hypothesis that this de novo mRNA synthesis includes cancer cell-specific transcripts, we performed subtraction hybridization to isolate HGF-induced transcripts from an endometrial epithelial carcinoma cell line, RL95-2 (RL95), known to migrate but not to proliferate with HGF treatment. One novel cDNA we call Mig-7 is induced by HGF in endometrial epithelial carcinoma cell lines RL95 and HEC-1A before migration ensues. Ovarian, oral squamous cell, and colon metastatic tumors but not normal tissues express Mig-7. HGF did not induce Mig-7 in normal primary endometrial epithelial cells. In addition, blocking antibodies to alphavbeta5 integrin inhibited HGF induction of Mig-7 in RL95 cells. Most importantly, Mig-7-specific antisense oligonucleotides inhibited scattering of RL95 cells in vitro. These results are the first to demonstrate that Mig-7 expression may be used as a cancer cell-specific target to inhibit cell scattering.
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MESH Headings
- Aged
- Aged, 80 and over
- Amino Acid Sequence/genetics
- Antibodies/pharmacology
- Base Sequence/genetics
- Biomarkers, Tumor/antagonists & inhibitors
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/isolation & purification
- Carcinoma/genetics
- Carcinoma/metabolism
- Cell Line, Tumor
- DNA, Complementary/analysis
- DNA, Complementary/genetics
- Epithelial Cells/cytology
- Epithelial Cells/drug effects
- Epithelial Cells/metabolism
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Gene Expression Regulation, Neoplastic/genetics
- Hepatocyte Growth Factor/metabolism
- Hepatocyte Growth Factor/pharmacology
- Humans
- Integrins/antagonists & inhibitors
- Integrins/metabolism
- Middle Aged
- Molecular Sequence Data
- Neoplasm Invasiveness/genetics
- Neoplasm Metastasis/genetics
- Neoplasm Proteins/antagonists & inhibitors
- Neoplasm Proteins/genetics
- Neoplasm Proteins/isolation & purification
- Oligoribonucleotides, Antisense/pharmacology
- Proto-Oncogene Proteins c-met/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Vitronectin/antagonists & inhibitors
- Receptors, Vitronectin/metabolism
- Stromal Cells/cytology
- Stromal Cells/metabolism
- Transcription, Genetic/drug effects
- Transcription, Genetic/genetics
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Affiliation(s)
- Sonya Crouch
- Pharmaceutical Sciences Department, Texas Tech University Health Science Center School of Pharmacy, Amarillo, TX 79106, USA
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Gallucci RM, Sloan DK, Heck JM, Murray AR, O'Dell SJ. Interleukin 6 Indirectly Induces Keratinocyte Migration. J Invest Dermatol 2004; 122:764-72. [PMID: 15086564 DOI: 10.1111/j.0022-202x.2004.22323.x] [Citation(s) in RCA: 110] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
IL-6-deficient transgenic mice (IL-6 KO) display significantly delayed cutaneous wound healing. To further elucidate the role of IL-6 in skin wound healing, epidermal keratinocyte and dermal fibroblast cells were isolated from neonatal IL-6 KO mice and treated with rmIL-6. It was found that rmIL-6 alone did not significantly modulate the proliferation or migration of cultured IL-6 KO keratinocytes. rmIL-6, however, significantly induced the migration of IL-6 KO keratinocytes (up to 5-fold) when co-cultured with dermal fibroblasts. Culture supernatants from IL-6-treated fibroblasts were also found to induce the migration of keratinocytes to a similar degree. Genomics analysis of treated fibroblasts indicated that rmIL-6 does not induce any known soluble keratinocyte migratory factors. rmIL-6 treatment of fibroblast, however, induced a rapid and sustained phosphorylation of STAT3 protein. These data indicate that IL-6 could influence wound healing by inducing keratinocyte migration through the production of a soluble fibroblast-derived factor, and its activity may be associated with STAT3 activation.
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Affiliation(s)
- Randle M Gallucci
- The University of Oklahoma Health Sciences Center, College of Pharmacy, Department of Pharmaceutical Sciences, Oklahoma City, Oklahoma 73117, USA.
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40
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Abstract
Matrix metalloproteinases (MMPs) are enzymes with metal ion-dependent activity that degrade extracellular matrix (ECM) glycoproteins. MMPs play a vital role in various biological processes, such as embryogenesis, tissue remodeling, angiogenesis, and wound healing, and in certain disease processes, for example, metastasis of cancer cells. Following their activation, MMPs are believed to modulate both cell-cell and cell-matrix interactions, which in turn regulate cellular differentiation, migration, proliferation, and cell survival. Being involved in pericellular proteolysis, they maintain a gradient of ECM proteins by balancing ECM synthesis and degradation. Such a balance is critical for various mammalian developmental processes during embryonic life and also for the homeostasis of various organs and reparative processes in later life. During the past two decades the role of MMPs in the morphogenesis of various organs, including that of the metanephros, has been investigated extensively. Mammalian nephrogenesis comprises a series of intricate events characterized by a sustained remodeling and turnover of ECM, suggesting a potential role of MMPs in renal development. Conceivably, reciprocal inductive epithelial-mesenchymal interactions that take place at the very commencement of nephrogenesis are modulated by a number of ECM proteins. Their expression, especially at the epithelial-mesenchymal interface, are critical for metanephric development, and such a strategic expression is likely to be modified by a number of different macromolecules that exhibit spatiotemporal and stage-specific expression. Among them the most suitable candidate that could exert such a control would be MMPs. This review addresses the current status of our understanding of the functions and the role of MMPs in renal development.
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Affiliation(s)
- Christian S Haas
- Department of Pathology, Northwestern University, Chicago, Illinois 60611, USA
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41
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Lee KH, Hyun MS, Kim JR. Growth factor-dependent activation of the MAPK pathway in human pancreatic cancer: MEK/ERK and p38 MAP kinase interaction in uPA synthesis. Clin Exp Metastasis 2003; 20:499-505. [PMID: 14598883 DOI: 10.1023/a:1025824816021] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Increased expression of the hepatocyte growth factor (HGF) receptor (c-met) and urokinase type plasminogen (uPA) correlated with the development and metastasis of cancers. To investigate the role of HGF/c-met signaling on metastasis in cancer cells stimulated with HGF, we examined the effects of a specific MEK1 inhibitor (PD98059) and a p38 MAP kinase inhibitor (SB203580) on HGF-induced uPA expression in pancreatic cancer cell lines, L3.6PL and IMIM-PC2. Pretreatment of PD98059 decreased HGF-mediated phosphorylation of extracellular receptor kinase (ERK), uPA secretion and expression of matrix metalloproteinases (MMP-2 and MMP-9) in a dose-dependent manner. In contrast, SB203580 pretreatment increased HGF-stimulated ERK phosphorylation, uPA secretion and expression of MMPs. SB203580 also reversed the inhibition of HGF-mediated ERK activation and uPA secretion in the PD98059-pretreated cells. These results suggest that ERK activation by HGF might play important roles in the metastasis of pancreatic cancer and the p38 MAPK pathway also involved in the HGF-mediated uPA secretion and metastasis by regulation of ERK pathway.
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Affiliation(s)
- Kyung Hee Lee
- Department of Hemato-Oncology, College of Medicine, Yeungnam University, Daegu, Korea.
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42
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Abstract
Cutaneous wound healing is a complex process involving blood clotting, inflammation, new tissue formation, and finally tissue remodeling. It is well described at the histological level, but the genes that regulate skin repair have only partially been identified. Many experimental and clinical studies have demonstrated varied, but in most cases beneficial, effects of exogenous growth factors on the healing process. However, the roles played by endogenous growth factors have remained largely unclear. Initial approaches at addressing this question focused on the expression analysis of various growth factors, cytokines, and their receptors in different wound models, with first functional data being obtained by applying neutralizing antibodies to wounds. During the past few years, the availability of genetically modified mice has allowed elucidation of the function of various genes in the healing process, and these studies have shed light onto the role of growth factors, cytokines, and their downstream effectors in wound repair. This review summarizes the results of expression studies that have been performed in rodents, pigs, and humans to localize growth factors and their receptors in skin wounds. Most importantly, we also report on genetic studies addressing the functions of endogenous growth factors in the wound repair process.
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Affiliation(s)
- Sabine Werner
- Institute of Cell Biology, ETH Zurich, Hönggerberg, HPM D42, CH-8093 Zurich, Switzerland.
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43
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Yoshida S, Yamaguchi Y, Itami S, Yoshikawa K, Tabata Y, Matsumoto K, Nakamura T. Neutralization of hepatocyte growth factor leads to retarded cutaneous wound healing associated with decreased neovascularization and granulation tissue formation. J Invest Dermatol 2003; 120:335-43. [PMID: 12542542 DOI: 10.1046/j.1523-1747.2003.12039.x] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
To elucidate biologic functions of hepatocyte growth factor and the c-Met receptor in cutaneous wound healing, we analyzed expression and localization of hepatocyte growth factor and c-Met receptor and used a strategy to neutralize endogenous hepatocyte growth factor in a cutaneous wound healing model in mice. Following excision of full-thickness skin on the dorsum of mice, expression of both hepatocyte growth factor and the c-Met receptor increased transiently in cutaneous tissues. Expressions of hepatocyte growth factor increased as early as 2 d postwounding and reached a peak on day 2, whereas the c-Met receptor expression reached a peak 2-4 d postwounding. Immunolocalization of the c-Met receptor indicated that c-Met receptor expression was upregulated in keratinocytes, vascular endothelial cells, and myofibroblasts in granulation tissue, hence these are potential target cells of hepatocyte growth factor. When normal rabbit IgG or neutralizing anti-hepatocyte growth factor IgG was locally and continuously delivered to subcutaneous lesions, the number of capillary vessels decreased with the neutralization of hepatocyte growth factor and there was an associated decreased expansion of granulation tissue. Likewise, retardation in re-epithelialization and the rate of wound closure occurred with neutralization of endogenous hepatocyte growth factor on days 4 and 7 postwounding. Therefore, hepatocyte growth factor is definitely involved in enhancing cutaneous wound healing processes, including re-epithelialization, neovascularization, and granulation tissue formation.
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Affiliation(s)
- Saho Yoshida
- Division of Molecular Regenerative Medicine, Course of Advanced Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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Yerushalmi GM, Leibowitz-Amit R, Shaharabany M, Tsarfaty I. Met-HGF/SF signal transduction induces mimp, a novel mitochondrial carrier homologue, which leads to mitochondrial depolarization. Neoplasia 2002; 4:510-22. [PMID: 12407445 PMCID: PMC1503665 DOI: 10.1038/sj.neo.7900272] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2002] [Accepted: 07/01/2002] [Indexed: 01/17/2023]
Abstract
Met-hepatocyte growth factor/scatter factor (HGF/SF) signaling plays an important role in epithelial tissue morphogenesis, lumen formation, and tumorigenicity. We have recently demonstrated that HGF/SF also alters the metabolic activity of cells by enhancing both the glycolytic and oxidative phosphorylation pathways of energy production. Using differential display polymerase chain reaction, we cloned a novel gene, designated mimp (Met-Induced Mitochondrial Protein), which is upregulated in NIH-3T3 cells cotransfected with both HGF/SF and Met (HMH cells). Northern and Western blot analyses showed that mimp is induced in several Met-expressing cell lines following treatment with HGF/SF. Mimp encodes a 33-kDa protein that shows sequence homology to the family of mitochondrial carrier proteins (MCPs). Murine Mimp (mMimp) is expressed in a wide variety of tissues, exhibiting an expression pattern similar to Met. Predominant expression is seen in liver, kidney, heart, skeletal muscle, and testis. Using immunostaining for HA-tagged mMimp and a GFP-mMimp chimeric protein as well as subcellular fractionation, we determined that Mimp is primarily localized to the mitochondria. Ectopic expression of mMimp in the Met-responsive adenocarcinoma cell line, DA3, reduced the mitochondrial membrane potential (uncoupling activity). The extent of the mitochondrial depolarization positively correlated with the level of Mimp expression. Our results demonstrate that Mimp is a novel mitochondrial carrier homologue upregulated by Met-HGF/SF signal transduction, which leads to mitochondrial depolarization, and suggest novel links among tyrosine kinase signaling, mitochondrial function, and cellular bioenergetics.
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Affiliation(s)
- Gil M Yerushalmi
- Department of Human Microbiology, Sackler Faculty of Medicine, Tel-Aviv University, Israel
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45
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Saarialho-Kere U, Kerkelä E, Jahkola T, Suomela S, Keski-Oja J, Lohi J. Epilysin (MMP-28) expression is associated with cell proliferation during epithelial repair. J Invest Dermatol 2002; 119:14-21. [PMID: 12164918 DOI: 10.1046/j.1523-1747.2002.01790.x] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Epilysin (MMP-28) is the newest member of the matrix metalloproteinase enzyme family. Several members of this enzyme family have been associated with various aspects of wound repair and cancer invasion. The aim of this study was to characterize in different types of wounds, skin cancers, and keratinocyte cultures factors that contribute to epilysin expression in vivo, as well as how and where it is induced in relation to other matrix metalloproteinases. Our results indicate that epilysin is produced by the mitotic Ki-67-positive keratinocytes distal from the wound edge in both acute and chronic wounds and that it does not generally colocalize with collagenase-1, stromelysin-2, or 92 kDa gelatinase in migrating keratinocytes. An injury of epidermis was needed for epilysin induction as it was upregulated in ulcerated pyogenic granulomas and in suction blisters but was not detected in intact acanthotic or normal skin. Unlike many other matrix metalloproteinases, epilysin was not detected in the invading cancer cell nests of sclerosing basal or squamous cell cancers of various grades. When primary keratinocytes were stimulated with tumor necrosis factor alpha, upregulation of epilysin mRNA was evident within 24-48 h as measured by quantitative reverse transcription polymerase chain reaction. In primary keratinocyte, HaCaT, and A431 carcinoma cell cultures none of the 10 other growth factors or extracellular matrices studied were able to upregulate epilysin expression. Our results suggest that epilysin expression is tightly spatially and temporally regulated during wound repair. Although the in vivo substrates of epilysin are not known at present, its expression pattern suggests that it may be needed to restructure the basement membrane or to degrade adhesive proteins between keratinocytes to supply new cells for the migrating front.
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Affiliation(s)
- Ulpu Saarialho-Kere
- Department of Dermatology, Biomedicum Helsinki, University Central Hospital, University of Helsinki, Meilahdentie 2, 00250 Helsinki, Finland.
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46
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Ohshima M, Sato M, Ishikawa M, Maeno M, Otsuka K. Physiologic levels of epidermal growth factor in saliva stimulate cell migration of an oral epithelial cell line, HO-1-N-1. Eur J Oral Sci 2002; 110:130-6. [PMID: 12013556 DOI: 10.1034/j.1600-0722.2002.11179.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An oral epithelial cell line derived from buccal mucosa squamous cell carcinoma, HO-1-N-1, was used to elucidate the role of epidermal growth factor (EGF) in saliva on wound healing of the oral mucosa. The effects of EGF on DNA synthesis, and cell migration was studied and the related signal transduction pathways examined. DNA synthesis by HO-1-N-1 cells was stimulated dose-dependently by 1-10 ng ml(-1) EGF, but significantly inhibited by addition of a PI3-K inhibitor (wortmannin), a p38 MAPK inhibitor (SB203580) or an MEKs inhibitor (PD98059). Cell migration was also accelerated by addition of 1-10 ng ml(-1) EGF; however, the migration rate was decreased to 30% by adding PD98059, to 40% by adding a tyrosine kinase inhibitor (herbimycin A), and to 60% by adding wortmannin or dexamethasone. These results indicate that the physiologic concentration of EGF in saliva may stimulate proliferation and migration of oral epithelial cells for wound healing, when the oral mucosa has been injured. Furthermore, this study revealed that EGF-stimulated signal transduction pathways for epithelial cell proliferation and cell migration are different.
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Affiliation(s)
- Mitsuhiro Ohshima
- Department of Biochemistry, Nihon University School of Dentistry, Tokyo, Japan.
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47
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Ozaki I, Zhao G, Mizuta T, Ogawa Y, Hara T, Kajihara S, Hisatomi A, Sakai T, Yamamoto K. Hepatocyte growth factor induces collagenase (matrix metalloproteinase-1) via the transcription factor Ets-1 in human hepatic stellate cell line. J Hepatol 2002; 36:169-78. [PMID: 11830328 DOI: 10.1016/s0168-8278(01)00245-8] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND/AIMS Although hepatocyte growth factor recently has been shown to decrease hepatic fibrosis in animal models, the molecular mechanisms of this effects remain to be elucidated. We investigated regulation of collagenase expression by hepatocyte growth factor in hepatic stellate cells. METHODS A human hepatic stellate cell line, LI90, was treated with hepatocyte growth factor. Expression of collagenase, 72 kDa gelatinase, procollagen alpha 1(I), tissue inhibitor of matrix metalloproteinase-1, transforming growth factor-beta 1, or Ets-1, and carboxyterminal telopeptide of type I collagen was examined. Ets-1 binding activity was determined by gel mobility shift assay, collagenase promoter activity was evaluated by reporter gene assay. LI90 cells were also transfected with Ets-1 antisense oligonucleotides with or without hepatocyte growth factor. RESULTS Hepatocyte growth factor increased expression of collagenase mRNA and protein, and an increase in Ets-1 mRNA preceded the increase in collagenase mRNA. Collagenase activity and protein, and a degradation product of type I collagen were increased in the medium. Nuclear extracts from treated LI90 cells also showed increased Ets-1 binding activity. Hepatocyte growth factor and cotransfection of Ets-1 enhanced promoter activity of collagenase gene. Furthermore, treatment of LI90 cells with Ets-1 antisense oligonucleotides downregulated basal and hepatocyte growth factor-induced Ets-1 and collagenase mRNA expression. CONCLUSIONS Collectively, the results suggest that hepatocyte growth factor increases collagenase expression in hepatic stellate cells via the Ets-1 transcription factor-dependent manner.
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Affiliation(s)
- Iwata Ozaki
- Health Administration Center, Department of Internal Medicine, Saga Medical School, 5-1-1 Nabeshima, Saga 849-8501, Japan.
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Monvoisin A, Bisson C, Si-Tayeb K, Balabaud C, Desmoulière A, Rosenbaum J. Involvement of matrix metalloproteinase type-3 in hepatocyte growth factor-induced invasion of human hepatocellular carcinoma cells. Int J Cancer 2002; 97:157-62. [PMID: 11774258 DOI: 10.1002/ijc.1595] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Intra-hepatic invasion is a key feature of hepatocellular carcinoma (HCC) progression. We have shown that human liver myofibroblasts induce invasion of HCC cells through Matrigel, via the secretion of hepatocyte growth factor (HGF). In our study, we investigated the role of matrix metalloproteinases (MMP) in HGF-induced HCC cells invasion. Marimastat, a synthetic MMP inhibitor, dose-dependently decreased HGF-induced invasion of HepG2 cells with a maximum of 82.7 +/- 13.3% at 20 microM. TIMP-2, a natural inhibitor, decreased invasion up to 51.2 +/- 11.2% at 200 ng/ml. To determine the target for these inhibitors, we examined MMP expression using RT-PCR. MMPs 1, 7-9 and 10 were not expressed in HepG2 cells either in the absence or in the presence of HGF. MMP-2 and MMP-13 transcripts were detected in unstimulated cells but their expression was unchanged after exposition to HGF. MMP-3 transcripts were undetectable in unstimulated HepG2 cells. They became clearly expressed in HGF-stimulated cells, however, and this was confirmed by Northern blot. By Western blot, HGF dose-dependently stimulated the secretion of pro-MMP-3 in the culture medium. The role of MMP-3 in HGF-induced invasion was directly confirmed by using an antibody to MMP-3, that blocked invasion. Finally, RT-PCR demonstrated MMP-3 expression in 10/16 human HCCs tested, but not in normal liver. In conclusion, our data demonstrate that MMPs, most likely MMP-3, mediate HGF-induced invasion of HCC cells. The in vivo expression of MMP-3 in HCC suggests a role for this protease in HCC progression.
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Affiliation(s)
- Arnaud Monvoisin
- Groupe de Recherches pour l'Etude du Foie (GREF), INSERM E9917, Université Victor Segalen Bordeaux 2, 146 rue Léo Saignat, 33076 Bordeaux cedex, France
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Hoshino Y, Mio T, Nagai S, Ito I, Shigematsu M, Izumi T. Fibrogenic and inflammatory cytokines modulate mRNA expressions of matrix metalloproteinase-3 and tissue inhibitor of metalloproteinase-3 in type II pneumocytes. Respiration 2002; 68:509-16. [PMID: 11694815 DOI: 10.1159/000050560] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Imbalance between proteinases and their inhibitors released from alveolar type II pneumocytes may cause development of inflammatory lung diseases. OBJECTIVES AND METHODS We examined mRNA expressions of matrix metalloproteinase-3 (MMP-3) and tissue inhibitor of metalloproteinase-3 (TIMP-3) in a cell line (A549) and in primary culture of normal adult human type II pneumocytes using reverse transcription-competitive polymerase chain reaction. RESULTS Interleukin-1beta (IL-1beta) and transforming growth factor-beta1 (TGF-beta1) increased MMP-3 and TIMP-3 expressions in A549 cells in a time- and concentration-dependent manner. IL-1beta mainly augmented MMP-3 expression, while TGF-beta1 mainly augmented TIMP-3 expression. Dexamethasone attenuated both IL-1beta- and TGF-beta1-stimulated expressions of MMP-3 and TIMP-3. Interleukin-10 had no significant effect. Hepatocyte growth factor alone had no effect on constitutive MMP-3 expression or TIMP-3 expression, but it augmented TGF-beta1-stimulated MMP-3 expression. The constitutive expressions were higher in normal type II pneumocytes than in A549 cells, but the regulations were similar. CONCLUSIONS These data indicated that the matrix degradation is enhanced by IL-1beta and suppressed by TGF-beta1 via regulations in the balance between MMP-3 and TIMP-3. Further, these regulations were shown to be modulated by glucocorticoids and growth factors.
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Affiliation(s)
- Y Hoshino
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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50
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Abstract
The Cre-loxP strategy has allowed us to generate the mice whose keratinocytes are devoid of Stat3, which play a pivotal role in the signal transduction following the stimulation with various growth factors/cytokines, such as EGF, HGF, or IL-6. Although keratinocyte-specific Stat3-disrupted mice were born normal with intact skin and the first hair cycle, they exhibited retardation of wound healing and absence of the second hair cycle onward, leading to development of spontaneous skin ulcers and alopecia as they aged. Thus, analyses of these mice reveal that Stat3 in keratinocytes contributes to the regeneration of epidermis and hair cycle process.
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Affiliation(s)
- S Sano
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan.
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