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https://www.readbyqxmd.com/read/28314274/increased-hgf-expression-induces-resistance-to-c-met-tyrosine-kinase-inhibitors-in-gastric-cancer
#1
So Yeong Ahn, Jin Kim, Min A Kim, Jiwoon Choi, Woo Ho Kim
BACKGROUND: Increased expression of hepatocyte growth factor (HGF) and MET proto-oncogene (c-MET) is associated with poor prognosis in various cancer types. Recently, it was reported that the expression of HGF induces resistance to tyrosine kinase inhibitors (TKIs) targeting epidermal growth factor receptor, human epidermal receptor receptor 2, and b-raf proto-oncogene. Here, we investigated the effects of HGF overexpression in gastric cancer cells in the absence or presence of c-MET TKIs...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28301573/panel-of-three-novel-serum-markers-predicts-liver-stiffness-and-fibrosis-stages-in-patients-with-chronic-liver-disease
#2
Marcin Krawczyk, Simone Zimmermann, Georg Hess, Robert Holz, Marc Dauer, Jochen Raedle, Frank Lammert, Frank Grünhage
Latest data suggest that placental growth factor (PLGF), growth differentiation factor-15 (GDF-15) and hepatic growth factor (HGF) are involved in hepatic fibrogenesis. Diagnostic performance of these markers for non-invasive liver fibrosis prediction was evaluated based on liver histology and stiffness. In total 834 patients were recruited. Receiver-operating-characteristics were used to define cut-offs for markers correlating to fibrosis stages. Odds-ratios were calculated for the presence/absence of fibrosis/cirrhosis and confirmed in the sub-group of patients phenotyped by elastography only...
2017: PloS One
https://www.readbyqxmd.com/read/28297588/oncostatin-m-preconditioned-mesenchymal-stem-cells-alleviate-bleomycin-induced-pulmonary-fibrosis-through-paracrine-effects-of-the-hepatocyte-growth-factor
#3
Ying-Wei Lan, Si-Min Theng, Tsung-Teng Huang, Kong-Bung Choo, Chuan-Mu Chen, Han-Pin Kuo, Kowit-Yu Chong
Mesenchymal stem cells (MSCs) are widely considered for treatment of pulmonary fibrosis based on the anti-inflammatory, antifibrotic, antiapoptotic, and regenerative properties of the cells. Recently, elevated levels of oncostatin M (OSM) have been reported in the bronchoalveolar lavage fluid of a pulmonary fibrosis animal model and in patients. In this work, we aimed to prolong engrafted MSC survival and to enhance the effectiveness of pulmonary fibrosis transplantation therapy by using OSM-preconditioned MSCs...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28296140/inhibitors-of-stat3-%C3%AE-catenin-and-igf-1r-sensitize%C3%A2-mouse-pik3ca%C3%A2-mutant%C3%A2-breast-cancer-to-pi3k-inhibitors
#4
Vanessa F Merino, Soonweng Cho, Xiaohui Liang, Sunju Park, Kideok Jin, Qian Chen, Duojia Pan, Cynthia A Zahnow, Alan R Rein, Saraswati Sukumar
Although mutations in the phosphoinositide 3-kinase-catalytic subunit (PIK3CA) are common in breast cancer, PI3K inhibitors alone have shown modest efficacy. We sought to identify additional pathways altered in PIK3CA mutant tumors that might be targeted in combination with PI3K inhibitors. We generated two transgenic mouse models expressing the human PIK3CA-H1047R and the -E545K hotspot mutant genes in the mammary gland and evaluated their effects on development and tumor formation. Molecular analysis identified pathways altered in these mutant tumors, which were also targeted in multiple cells lines derived from the PIK3CA tumors...
March 15, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28292674/the-anti-oxidant-effects-of-melatonin-derivatives-on-human-gingival-fibroblasts
#5
Chawapon Phiphatwatcharaded, Ploenthip Puthongking, Ponlatham Chaiyarit, Nutjaree Pratheepawanit Johns, Sumon Sakolchai, Pramote Mahakunakorn
OBJECTIVES: Aim of this in vitro study was to evaluate the anti-oxidant activity of indole ring modified melatonin derivatives as compared with melatonin in primary human gingival fibroblast (HGF) cells. METHODS: Anti-oxidant activity of melatonin (MLT), acetyl-melatonin (AMLT) and benzoyl-melatonin (BMLT) was evaluated by5 standard methods as follows: 2, 2-diphenyl-1-picrylhydrazyl (DPPH); ferric ion reducing antioxidant power (FRAP); superoxide anion scavenging; nitric oxide (NO) scavenging; and thiobarbituric acid reactive substances (TBARs)...
March 7, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28291817/specific-changes-in-circulating-cytokines-and-growth-factors-induced-by-exercise-stress-testing-in-asymptomatic-aortic-valve-stenosis
#6
Renata Kolasa-Trela, Malgorzata Konieczynska, Marta Bazanek, Anetta Undas
BACKGROUND: We evaluated exercise-induced changes in the profile of circulating cytokines and growth factors in patients with AS. METHODS: We studied 32 consecutive asymptomatic moderate-to-severe AS patients and 32 age and sex-matched controls. Plasma levels of interleukin (IL)-6, IL-10, hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF), and transforming growth factor (TGF)-β were measured at 4 time points, i.e. at rest, at peak bicycle exercise, one hour and 24 hours after a symptom-limited exercise...
2017: PloS One
https://www.readbyqxmd.com/read/28290667/injectable-polypeptide-thermogel-as-a-tissue-engineering-system-for-hepatogenic-differentiation-of-tonsil-derived-mesenchymal-stem-cells
#7
Ja Hye Hong, Hyun Jung Lee, Byeongmoon Jeong
A poly(ethylene glycol)-b-poly(l-alanine) (PEG-l-PA) hydrogel incorporating tonsil-derived mesenchymal stem cells (TMSCs), tauroursodeoxycholic acid (TUDCA), hepatocyte growth factor (HGF), and fibroblast growth factor 4 (FGF4) was prepared through thermal gelation of an aqueous polymer solution for an injectable tissue engineering application. The thermal gelation accompanied conformational changes of both PA and PEG blocks. The gel modulus at 37 °C was controlled to be 1000 Pa by using a 14.0 wt % aqueous polymer solution...
March 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28289136/estrogen-modulates-mesenchymal-epidermal-interactions-in-the-adult-nipple
#8
Hsing-Jung Wu, Ji Won Oh, Dan F Spandau, Sunil Tholpady, Jesus Diaz, Laura J Schroeder, Carlos D Offutt, Adam B Glick, Maksim V Plikus, Sachiko Koyama, John Foley
Maintenance of specialized epidermis requires signals from the underlying mesenchyme; however, specific pathways involved remain to be identified. By recombining cells from ventral skin of the K14-PTHrP transgenic mice with those from wild-type, we show that transgenic stroma is sufficient to reprogram wild-type keratinocytes into nipple-like epidermis. To identify candidate nipple-specific signaling factors, we compared gene expression signatures of sorted Pdgfrα-positive ventral K14-PTHrP and wild-type fibroblasts, identifying differentially-expressed transcripts of the WNT, HGF, TGFβ, IGF, BMP, FGF and estrogen signaling...
March 13, 2017: Development
https://www.readbyqxmd.com/read/28286925/cabozantinib-for-renal-cell-carcinoma-current-and-future-paradigms
#9
REVIEW
Ahmed Abdelaziz, Ulka Vaishampayan
Cabozantinib was approved by the FDA in April 2016 for the treatment of advanced renal cancer, pretreated with at least one prior antiangiogenic therapy. This is the first agent in the therapy of kidney cancer to show a statistically significant improvement in all three endpoints of clinical efficacy, response rate, progression free survival, and overall survival (OS), in a phase III randomized trial. The reporting of METEOR coincided with that of the Checkmate 025 study which randomized similarly eligible patients to receive nivolumab or everolimus 10 mg daily...
March 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28279229/human-umbilical-cord-mesenchymal-stem-cells-improve-the-reserve-function-of-perimenopausal-ovary-via-a-paracrine-mechanism
#10
Jia Li, QiuXian Mao, JingJun He, HaoQing She, Zhi Zhang, ChunYan Yin
BACKGROUND: Human umbilical cord mesenchymal stem cells (hUCMSCs) are a type of pluripotent stem cell which are isolated from the umbilical cord of newborns. hUCMSCs have great therapeutic potential. We designed this experimental study in order to investigate whether the transplantation of hUCMSCs can improve the ovarian reserve function of perimenopausal rats and delay ovarian senescence. METHOD: We selected naturally aging rats confirmed by vaginal smears as models of perimenopausal rats, divided into the control group and the treatment group, and selected young fertile female rats as normal controls...
March 9, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28277613/activation-of-mutated-trpa1-ion-channel-by-resveratrol-in-human-prostate-cancer-associated-fibroblasts-caf
#11
Eric Vancauwenberghe, Lucile Noyer, Sandra Derouiche, Loïc Lemonnier, Pierre Gosset, Laura R Sadofsky, Pascal Mariot, Marine Warnier, Alexandre Bokhobza, Christian Slomianny, Brigitte Mauroy, Jean-Louis Bonnal, Etienne Dewailly, Philippe Delcourt, Laurent Allart, Natalia Prevarskaya, Morad Roudbaraki
Previous studies showed the effects of resveratrol (RES) on several cancer cells, including prostate cancer (PCa) cell apoptosis without taking into consideration the impact of the tumor microenvironment (TME). The TME is composed of cancer cells, endothelial cells, blood cells and cancer-associated fibroblasts (CAF), the main source of growth factors. The latter cells might modify in the TME the impact of RES on tumor cells via secreted factors. Recent data clearly show the impact of CAF on cancer cells apoptosis resistance via secreted factors...
March 9, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28274044/increased-advanced-oxidation-protein-products-generation-by-cyclosporine-a-and-angiotensin-ii-in-human-gingival-fibroblasts-ex-vivo-study
#12
Suresh Ranga Rao, Rajasekaran Subbarayan, Supraja Ajitkumar, Dinesh Murugan Girija
INTRODUCTION: Cyclosporin-A (CsA), an immunosuppressant, induces renal fibrosis and Renin Angiotensin System (RAS) is known to play a major role. CsA has the potential to increase the oxidative stress; specifically through the Advanced Oxidation Protein Products (AOPP) which could possibly stimulate fibrosis. A similar type of pathology occurs even in the gingiva known as CsA Induced Gingival Overgrowth (CIGO). AIM: This study was undertaken to estimate the AOPP generation by Human Gingival Fibroblasts (HGF) under the influence of CsA and Angiotensin II (Ang II)...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28273932/hepatocyte-growth-factor-prevented-high-fat-diet-induced-obesity-and-improved-insulin-resistance-in-mice
#13
Jun Muratsu, Masaaki Iwabayashi, Fumihiro Sanada, Yoshiaki Taniyama, Rei Otsu, Hiromi Rakugi, Ryuichi Morishita
Obesity and its associated chronic inflammation in adipose tissue initiate insulin resistance, which is related to several pathologies including hypertension and atherosclerosis. Previous reports demonstrated that circulating hepatocyte growth factor (HGF) level was associated with obesity and type 2 diabetes. However, its precise role in obesity and related-pathology is unclear. In this experiment, cardiac-specific over-expression of human HGF in mice (HGF-Tg mice) which showed 4-5 times higher serum HGF levels than wild-type mice were used...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28273124/blockade-of-cyclophilin-d-rescues-dexamethasone-induced-oxidative-stress-in-gingival-tissue
#14
Yuting He, Ling Zhang, Zhuoli Zhu, Anqi Xiao, Haiyang Yu, Xueqi Gan
Glucocorticoids (GCs) are frequently used for the suppression of inflammation in chronic inflammatory diseases. Excessive GCs usage is greatly associated with several side effects, including gingival ulceration, the downward migration of the epithelium, attachment loss and disruption of transeptal fibers. The mechanisms underlying GCs-induced impairments in gingival tissue remains poorly understood. Mitochondrial dysfunction is associated with various oral diseases, such as chronic periodontitis, age-related alveolar bone loss and hydrogen peroxide-induced cell injury in gingival...
2017: PloS One
https://www.readbyqxmd.com/read/28272703/the-study-of-endogenous-hepatocyte-growth-factor-in-the-pathogenesis-of-intracranial-aneurysms
#15
L-L Yu, Y-J Liu, Z-H Wang, L Shi, L-X Liu
OBJECTIVE: Inflammation as a significant influence factor plays an important role in the formation and rupture of intracranial aneurysms. However, based on plenty of related studies, it is believed that the hepatocyte growth factor (HGF) is able to prevent vascular inflammation. This paper, therefore, explored the role and mechanism of endogenous HGF in the pathogenesis of intracranial aneurysms. MATERIALS AND METHODS: 16 blood samples were collected from the intracranial aneurysms and the lumens of the femoral artery of 16 patients...
February 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28270618/novel-combinatorial-screening-identifies-neurotrophic-factors-for-selective-classes-of-motor-neurons
#16
Sébastien Schaller, Dorothée Buttigieg, Alysson Alory, Arnaud Jacquier, Marc Barad, Mark Merchant, David Gentien, Pierre de la Grange, Georg Haase
Numerous neurotrophic factors promote the survival of developing motor neurons but their combinatorial actions remain poorly understood; to address this, we here screened 66 combinations of 12 neurotrophic factors on pure, highly viable, and standardized embryonic mouse motor neurons isolated by a unique FACS technique. We demonstrate potent, strictly additive, survival effects of hepatocyte growth factor (HGF), ciliary neurotrophic factor (CNTF), and Artemin through specific activation of their receptor complexes in distinct subsets of lumbar motor neurons: HGF supports hindlimb motor neurons through c-Met; CNTF supports subsets of axial motor neurons through CNTFRα; and Artemin acts as the first survival factor for parasympathetic preganglionic motor neurons through GFRα3/Syndecan-3 activation...
March 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28270109/oral-microbe-host-interactions-influence-of-%C3%AE-glucans-on-gene-expression-of-inflammatory-cytokines-and-metabolome-profile
#17
Viviam de Oliveira Silva, Luciano José Pereira, Ramiro Mendonça Murata
BACKGROUND: The aim of this study was to evaluate the effects of β-glucan on the expression of inflammatory mediators and metabolomic profile of oral cells [keratinocytes (OBA-9) and fibroblasts (HGF-1) in a dual-chamber model] infected by Aggregatibacter actinomycetemcomitans. The periodontopathogen was applied and allowed to cross the top layer of cells (OBA-9) to reach the bottom layer of cells (HGF-1) and induce the synthesis of immune factors and cytokines in the host cells. β-glucan (10 μg/mL or 20 μg/mL) were added, and the transcriptional factors and metabolites produced were quantified in the remaining cell layers and supernatant...
March 7, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28267132/pentraxin3-as-a-new-indicator-of-cardiovascular-related-death-in-patients-with-advanced-chronic-kidney-disease
#18
Marcin Krzanowski, Katarzyna Krzanowska, Mariusz Gajda, Paulina Dumnicka, Artur Dziewierz, Karolina Woziwodzka, Jan A Litwin, Władysław Sułowicz
INTRODUCTION    Pentraxin3 (PTX3) play an important role in the inflammatory response, taking part in recognizing pathogens and damaged tissues. OBJECTIVES    The aim of the study was to assess the relationship between PTX3 levels and all-cause and cardiovascular (CV) mortality in chronic kidney disease (CKD) patients during five-year observation period.  PATIENTS AND METHODS    The study comprised 78 patients (51 hemodialyzed, 27 predialysis). The examined parameters included PTX3, calcium, phosphate, iPTH, interleukin-6 (IL-6), fibroblast growth factor 23 (FGF-23), osteopontin (OPN), osteoprotegerin (OPG), osteocalcin (OC), osteopontin (OPN), osteoprotegerin (OPG), osteocalcin, tumor necrosis factor receptor II (TNF-R II), transforming growth factor-β (TGF-β), hepatocyte growth factor (HGF), stromal cell-derived factor α (SDF1α), and thrombomodulin (TM)...
February 27, 2017: Pol Arch Intern Med
https://www.readbyqxmd.com/read/28260071/axl-and-met-receptor-tyrosine-kinases-are-essential-for-lung-cancer-metastasis
#19
Yun Jung Choi, Ji Hye Kim, Jin Kyung Rho, Joong Sun Kim, Chang-Min Choi, Woo Sung Kim, Jaekyoung Son, Jae Cheol Lee
The AXL and MET receptors regulate key processes in tumor growth, metastasis, and drug resistance; thus, they have recently been implicated as promising therapeutic targets in various tumors. We investigated the metastatic potential and crosstalk between these receptors in non‑small cell lung cancer (NSCLC). We found that the treatment of NSCLC cells with hepatocyte growth factor (HGF) and growth arrest-specific 6 (Gas6), as ligands for MET and AXL, respectively, promoted their migration and invasion ability...
March 1, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28259958/comparison-of-the-proliferation-migration-and-angiogenic-properties-of-human-amniotic-epithelial-and-mesenchymal-stem-cells-and-their-effects-on-endothelial-cells
#20
Qianqian Wu, Tao Fang, Hongxin Lang, Min Chen, Ping Shi, Guoxian Qi, Xining Pang
In vivo studies have shown that amnion-produced growth factors participate in many diseases that involve angiogenesis, re-epithelialization and immunomodulation. Although human amniotic epithelial cells (hAECs) and human amniotic mesenchymal stem cells (hAMSCs) can be obtained from amniotic membranes, there is little information regarding their biological differences. The aim of the present study was to isolate and characterize cells from human amnions, to investigate the biological potential and behavior of these cells on the function of endothelial cells in vivo and in vitro and to examine variations in the expression profile of growth factors in different human amnion-derived cell types...
February 20, 2017: International Journal of Molecular Medicine
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