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Hepatocyte growth factor

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https://www.readbyqxmd.com/read/28429746/the-small-g-protein-arf6-expressed-in-keratinocytes-by-hgf-stimulation-is-a-regulator-for-skin-wound-healing
#1
Yuki Miura, Van Ngo Thai Bich, Momoko Furuya, Hiroshi Hasegawa, Satoru Takahashi, Naohiro Katagiri, Tsunaki Hongu, Yuji Funakoshi, Norihiko Ohbayashi, Yasunori Kanaho
The earlier step of cutaneous wound healing process, re-epithelialization of the wounded skin, is triggered by a variety of growth factors. However, molecular mechanisms through which growth factors trigger skin wound healing are less understood. Here, we demonstrate that hepatocyte growth factor (HGF)/c-Met signaling-induced expression of the small G protein Arf6 mRNA in keratinocytes is essential for the skin wound healing. Arf6 mRNA expression was dramatically induced in keratinocytes at the wounded skin, which was specifically suppressed by the c-Met inhibitor...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28423584/hepatocyte-growth-factor-is-a-prognostic-marker-in-patients-with-colorectal-cancer-a-meta-analysis
#2
Chao-Yuan Huang, Qian-Yi Zhou, Yue Hu, Yi Wen, Zhen-Wen Qiu, Man-Guang Liang, Jun-Ling Mo, Jian-Hua Xu, Cong Sun, Feng-Bin Liu, Xin-Lin Chen
Hepatocyte growth factor (HGF) is a crucial factor associated with development, progression and metastasis of colorectal cancer (CRC). However, its prognostic value remains unclear. Thus studies referring to the correlation between HGF and CRC patients' prognosis were included to explore the role of HGF in CRC. At last nine articles were included. The results showed that the over-expression of HGF was associated with a poor prognosis, presented through overall survival (OS, Hazard ratio (HR) = 2.50, 95% confidence interval (CI): 2...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423509/histone-lysine-methyltransferase-g9a-is-a-novel-epigenetic-target-for-the-treatment-of-hepatocellular-carcinoma
#3
Masayuki Yokoyama, Tetsuhiro Chiba, Yoh Zen, Motohiko Oshima, Yuko Kusakabe, Yoshiko Noguchi, Kaori Yuki, Shuhei Koide, Shiro Tara, Atsunori Saraya, Kazumasa Aoyama, Naoya Mimura, Satoru Miyagi, Masanori Inoue, Toru Wakamatsu, Tomoko Saito, Sadahisa Ogasawara, Eiichiro Suzuki, Yoshihiko Ooka, Akinobu Tawada, Masayuki Otsuka, Masaru Miyazaki, Osamu Yokosuka, Atsushi Iwama
Histone H3 lysine 9 dimethylation (H3K9me2) is mainly regulated by the histone lysine methyltransferase G9a and is associated with the repression of transcription. However, both the role of G9a and the significance of H3K9me2 in hepatocellular carcinoma (HCC) cells remain unclear. In this study, we conducted loss-of-function assay of G9a using short-hairpin RNA and pharmacological interference. Knockdown of G9a reduced H3K9me2 levels and impaired both HCC cell growth and sphere formation. However, transforming growth factor β1-induced epithelial mesenchymal transition (EMT) was not suppressed by G9a knockdown...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423312/hgfa-is-an-injury-regulated-systemic-factor-that-induces-the-transition-of-stem-cells-into-galert
#4
Joseph T Rodgers, Matthew D Schroeder, Chanthia Ma, Thomas A Rando
The activation of quiescent stem cells into the cell cycle is a key step in initiating the process of tissue repair. We recently reported that quiescent stem cells can transition into GAlert, a cellular state in which they have an increased functional ability to activate and participate in tissue repair. However, the precise molecular signals that induce GAlert in stem cells have remained elusive. Here, we show that the injury-induced regulation of hepatocyte growth factor (HGF) proteolytic processing via the systemic protease, hepatocyte growth factor activator (HGFA), stimulates GAlert in skeletal muscle stem cells (MuSCs) and fibro-adipogenic progenitors (FAPs)...
April 18, 2017: Cell Reports
https://www.readbyqxmd.com/read/28422570/an-induced-adipocyte-sheet-reduces-inflammatory-reactions-during-remodeling-of-xenogeneic-scaffolds-in-vivo
#5
Tong Yi, Qiang Wang, Fan Fan, Gouhui Fan
Surgical therapy of cardiovascular diseases frequently requires replacement of diseased tissues with prosthetic devices or grafts. Calcification is the main reason for the degeneration of implanted grafts. However, some factors reduce stenosis and attenuate calcification of implanted grafts. In this study, we used an autologous induced adipocyte cell-sheet (IACS) as a drug delivery system to determine whether its secretion ability has a beneficial effect on the remodeling process of grafts in a rat subcutaneous model...
April 19, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28420162/hepatocyte-growth-factor-a-key-tumor-promoting-factor-in-the-tumor-microenvironment
#6
REVIEW
Benjamin Yaw Owusu, Robert Galemmo, James Janetka, Lidija Klampfer
The tumor microenvironment plays a key role in tumor development and progression. Stromal cells secrete growth factors, cytokines and extracellular matrix proteins which promote growth, survival and metastatic spread of cancer cells. Fibroblasts are the predominant constituent of the tumor stroma and Hepatocyte Growth Factor (HGF), the specific ligand for the tyrosine kinase receptor c-MET, is a major component of their secretome. Indeed, cancer-associated fibroblasts have been shown to promote growth, survival and migration of cancer cells in an HGF-dependent manner...
April 17, 2017: Cancers
https://www.readbyqxmd.com/read/28419467/refining-liver-safety-risk-assessment-application-of-mechanistic-modeling-and-serum-biomarkers-to-cimaglermin-alfa-ggf2-clinical-trials
#7
Diane M Longo, Grant T Generaux, Brett A Howell, Scott Q Siler, Daniel J Antoine, Donald Button, Anthony Caggiano, Andrew Eisen, Jennifer Iaci, Ric Stanulis, Tom Parry, Merrie Mosedale, Paul B Watkins
Cimaglermin alfa (GGF2) is a recombinant human protein growth factor in development for heart failure. Phase 1 trials were suspended when 2 cimaglermin alfa-treated subjects experienced concomitant elevations in serum aminotransferases and total bilirubin meeting current FDA criteria for a serious liver safety signal (i.e. "Hy's Law"). We assayed mechanistic biomarkers in archived clinical trial serum samples which confirmed the hepatic origin of the aminotransferase elevations in these two subjects and identified apoptosis as the major mode of hepatocyte death...
April 17, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28416745/stable-h3-peptide-was-delivered-by-gold-nanorods-to-inhibit-lsd1-activation-and-induce-human-mesenchymal-stem-cells-differentiation
#8
Xin Meng, Jianping Li, Minjuan Zheng, Lei Zuo, Chao Sun, Yongsheng Zhu, Ling Fang, Liwen Liu, Xiaodong Zhou
Recently, lysine-specific demethylase 1 (LSD1), which is the first identified histone demethylase, regulates post-translational modifications and has great promise as new targets for cancer and other diseases. Moreover, the ability of LSD1 to induce the differentiation of stem cells has attracted great attention in biological fields. In this study, we designed LSD1 peptide inhibitor based on its substrate H3 peptide. Through introducing a disulfide bond to stabilize the native peptide into alpha helical structure, we get a peptide with higher cell permeability and stability compared to its parent form...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28410970/insulin-and-insulin-like-growth-factor-1-modulate-the-lipolytic-action-of-growth-hormone-by-altering-signal-pathway-linkages
#9
Heather E Bergan-Roller, Alicia T Ickstadt, Jeffrey D Kittilson, Mark A Sheridan
Growth hormone (GH) has many actions in vertebrates, including the regulation of two disparate metabolic processes: growth promotion (anabolic) and th e mobilization of stored lipids (catabolic). Our previous studies showed that GH stimulated IGF-1 production in hepatocytes from fed rainbow trout, but in cells from fasted fish GH stimulated lipolysis. In this study, we used rainbow trout (Oncorhynchus mykiss) to elucidate regulation of the mechanisms that enable cells to alter their lipolytic responsiveness to GH...
April 11, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28407694/molecular-mechanisms-of-activating-c-met-in-kshv-primary-effusion-lymphoma
#10
Bao Quoc Lam, Lu Dai, Li Li, Jing Qiao, Zhen Lin, Zhiqiang Qin
The oncogenic Kaposi's sarcoma-associated herpesvirus (KSHV) is a principal causative agent of primary effusion lymphoma (PEL), which is mostly seen in immunosuppressed patients. PEL is a rapidly progressing malignancy with a median survival time of approximately 6 months even under the conventional chemotherapy. We recently report that the hepatocyte growth factor (HGF)/c-MET pathway is highly activated in PEL cells and represents a promising therapeutic target (Blood. 2015;126(26):2821-31). However, the underlying mechanisms of c-MET activation within PEL cells remain largely unknown...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28406452/suppression-of-hepatic-epithelial-to-mesenchymal-transition-by-melittin-via-blocking-of-tgf%C3%AE-smad-and-mapk-jnk-signaling-pathways
#11
Ji-Hyun Park, Byoungduck Park, Kwan-Kyu Park
Transforming growth factor (TGF)-β1 plays a crucial role in the epithelial-to-mesenchymal transition (EMT) in hepatocytes and hepatic stellate cells (HSC), which contributes to the pathogenesis of liver fibrosis. Melittin (MEL) is a major component of bee venom and is effective in rheumatoid arthritis, pain relief, cancer cell proliferation, fibrosis and immune modulating activity. In this study, we found that MEL inhibits hepatic EMT in vitro and in vivo, regulating the TGFβ/Smad and TGFβ/nonSmad signaling pathways...
April 13, 2017: Toxins
https://www.readbyqxmd.com/read/28404966/a-novel-bispecific-c-met-pd-1-antibody-with-therapeutic-potential-in-solid-cancer
#12
Zu-Jun Sun, Yi Wu, Wei-Hua Hou, Yu-Xiong Wang, Qing-Yun Yuan, Hui-Jie Wang, Min Yu
The bispecific antibody is a novel antibody, which can target two different antigens and mediate specific killing effects by selectively redirecting effector cells to the target cells. Here, we designed and synthesized a bispecific antibody (BsAb) that can bind cellular-mesenchymal to epithelial transition factor (c-MET, overexpressed in several human solid tumor), and programmed death-1 (PD-1, involved in cancer cell immune evasion) with high affinity and specificity. We found that BsAb can induce the degradation of c-MET protein in cancer cells, including MKN45, a gastric cancer cell line, and A549, a lung cancer cell line...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28404521/diabetic-complications-in-the-cornea
#13
Alexander V Ljubimov
Diabetic corneal alterations, such as delayed epithelial wound healing, edema, recurrent erosions, neuropathy/loss of sensitivity, and tear film changes are frequent but underdiagnosed complications of both type 1 (insulin-dependent) and type 2 (non-insulin-dependent) diabetes mellitus. The disease affects corneal epithelium, corneal nerves, tear film, and to a lesser extent, endothelium, and also conjunctiva. These abnormalities may appear or become exacerbated following trauma, as well as various surgeries including retinal, cataract or refractive...
April 9, 2017: Vision Research
https://www.readbyqxmd.com/read/28403020/understanding-the-impact-of-preservation-methods-on-the-integrity-and-functionality-of-placental-allografts
#14
Amy Johnson, Alexandra Gyurdieva, Sandeep Dhall, Alla Danilkovitch, Yi Duan-Arnold
INTRODUCTION: Human placental membranes (hPMs) have a long history in treating burns and wounds. The composition of hPMs includes structural matrix, growth factors, and neonatal cells, all of which contribute to their regenerative potential. However, most hPM products are devitalized after dehydration and irradiation. We compared the functionality of single-layer viable cryopreserved human amniotic membrane (vCHAM) with multilayer devitalized dehydrated human amnion/chorion membrane (dHACM) in wound-relevant models to determine the effect of different processing methods on hPMs...
April 12, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28396568/tollip-deficiency-alters-atherosclerosis-and-steatosis-by-disrupting-lipophagy
#15
Keqiang Chen, Ruoxi Yuan, Yao Zhang, Shuo Geng, Liwu Li
BACKGROUND: Compromised lipophagy with unknown mechanisms may be critically involved in the intracellular accumulation of lipids, contributing to elevated atherosclerosis and liver steatosis. We hypothesize that toll-interacting protein (Tollip), a key innate immune molecule involved in the fusion of autolysosome, may play a significant role in lipophagy and modulate lipid accumulation during the pathogenesis of atherosclerosis and liver steatosis. METHODS AND RESULTS: By comparing mice fed with either a Western high-fat diet or a regular chow diet, we observed that both atherosclerosis and liver steatosis were aggravated in apolipoprotein E-deficient (ApoE(-/-))/Tollip(-/-) mice as compared with ApoE(-/-) mice...
April 10, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28393839/exosome-delivered-egfr-regulates-liver-microenvironment-to-promote-gastric-cancer-liver-metastasis
#16
Haiyang Zhang, Ting Deng, Rui Liu, Ming Bai, Likun Zhou, Xia Wang, Shuang Li, Xinyi Wang, Haiou Yang, Jialu Li, Tao Ning, Dingzhi Huang, Hongli Li, Le Zhang, Guoguang Ying, Yi Ba
The metastatic organotropism has been one of the cancer's greatest mysteries since the 'seed and soil' hypothesis. Although the role of EGFR in cancer cells is well studied, the effects of secreted EGFR transported by exosomes are less understood. Here we show that EGFR in exosomes secreted from gastric cancer cells can be delivered into the liver and is integrated on the plasma membrane of liver stromal cells. The translocated EGFR is proved to effectively activate hepatocyte growth factor (HGF) by suppressing miR-26a/b expression...
April 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/28387918/the-study-of-endogenous-hepatocyte-growth-factor-in-the-pathogenesis-of-intracranial-aneurysms
#17
L-L Yu, Y-J Liu, Z-H Wang, L Shi, L-X Liu
The article "The study of endogenous hepatocyte growth factor in the pathogenesis of intracranial aneurysms" by L.-L. Yu, Y.-J. Liu, Z.-H. Wang, L. Shi, L.-X. Liu, published in Eur Rev Med Pharmacol Sci 2017; 21 (4): 795-803 has been withdrawn.
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28387740/protective-effect-of-bicyclol-on-anti-tuberculosis-drug-induced-liver-injury-in-rats
#18
Xin Liu, Manman Zhao, Jiaqi Mi, Hui Chen, Li Sheng, Yan Li
The present study was performed to investigate the effect of bicyclol, a synthetic anti-hepatitis drug with anti-oxidative and anti-inflammatory properties, on anti-tuberculosis (anti-TB) drug-induced liver injury and related mechanisms in rats. Bicyclol was given to rats by gavage 2 h before the oral administration of an anti-TB drug once a day for 30 days. Liver injury was evaluated by biochemical and histopathological examinations. Lipid peroxidation, mitochondrial function, and the activity of antioxidants were measured by spectrophotometric methods...
April 7, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28386375/expression-of-antisense-of-microrna-26a-5p-in-mesenchymal-stem-cells-increases-their-therapeutic-effects-against-cirrhosis
#19
Li Chen, Wenhuan Zeng, Bo Yang, Xiang Cui, Cong Feng, Lili Wang, Hao Wang, Xuan Zhou, Peng Li, Faqin Lv, Tanshi Li
Hepatocyte growth factor (HGF) is a potent mitogen for mature hepatocytes, and has been shown to prevent cirrhosis during liver regeneration. Transplantation of mesenchymal stem cells (MSCs) reduces the development of cirrhosis after liver injury. However, the production and secretion of transplanted MSCs in liver were not studied yet. Here we found that the MSCs expressed low levels of HGF protein, but surprisingly high levels of HGF mRNA. Further investigation using bioinformatics analyses and luciferase reporter assay showed that MSCs expressed high levels of microRNA-26a-5p (miR-26a-5p), which targeted 3'-UTR of HGF mRNA to inhibit its protein translation...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28386316/energy-intake-correlates-with-the-levels-of-fatty-acid-synthase-and-insulin-like-growth-factor-1-in-male-and-female-c57bl-6-mice
#20
Anup S Ramdhave, Shreesh Ojha, Mukesh Nandave
Emerging evidence suggests that, dysregulation of fatty acid synthase (FASN) and insulin-like growth factor-1 (IGF-1) could play a vital role in pathology of various diseases. Our aim was to determine the changes in FASN and IGF-1 levels concomitant to long term feeding of HFD in either sex. Male and female mice were fed either HFD or LFD for a period of 16 weeks. During this period, physiological, biochemical, and histological parameters were evaluated. Mice fed with HFD showed a significant gain in body weight, body mass index, energy intake, and abdominal circumference...
2017: American Journal of Translational Research
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