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https://www.readbyqxmd.com/read/27903395/-role-of-cytokine-matrix-metalloproteinase-axis-on-promoting-vascular-neointima-hyperplasia-in-mice
#1
Y Liu, W H Ning, X H Shen, D L Guo, L Guo
Objective: To observe the effects of tumor necrosis factor-α (TNF-α) and platelet derived growth factor (PDGF) on vascular neointimal hyperplasia on matrix metalloproteinase 9/2 gene knockout (MMP9/2(-/-)) mice and explore related mechanisms. Methods: Mice of control group, MMP9(-/-) group, MMP2(-/-) group and MMP9/2(-/-) group were studied. Femoral artery was injured by transluminal wire, the mRNA expression levels of TNF-α and PDGF on femoral artery were detected by RT-PCR; the protein expression of MMP9 and MMP2 were assessed by Western blot on day 0, 1, 3, 7, 14 and 28 post injury...
November 24, 2016: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/27899819/4-cholesten-3-one-suppresses-lung-adenocarcinoma-metastasis-by-regulating-translocation-of-hmgb1-hif1%C3%AE-and-caveolin-1
#2
Jinben Ma, Guobin Fu, Jing Wu, Shaoxian Han, Lishan Zhang, Ming Yang, Yong Yu, Mengyuan Zhang, Yanliang Lin, Yibing Wang
Metastasis is a great challenge in lung adenocarcinoma (ADC) therapy. Cholesterol has been implicated in ADC metastasis. 4-cholesten-3-one, as cholesterol metabolite and analog, can substitute membrane cholesterol and increase membrane fluidity. In this study, we explored the possibility that 4-cholesten-3-one inhibited ADC metastasis. Low-dose 4-cholesten-3-one significantly restrained ADC cells migration and invasion with little effects on cells viabilities. Further investigation showed that 4-cholesten-3-one promoted ROS generation, which transiently activated AMPKα1, increased HIF1α expression, reduced Bcl-2 expression and caused autophagy...
September 22, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27898420/long-non-coding-rna-bancr-promotes-endometrial-cancer-cell-proliferation-and-invasion-by-regulating-mmp2-and-mmp1-via-erk-mapk-signaling-pathway
#3
Danni Wang, Danbo Wang, Ning Wang, Zaiqiu Long, Xuemei Ren
BACKGROUND/AIMS: Microarray screening had found BRAF-activated non-coding RNA (BANCR) was significantly upregulated in type 1 endometrial cancer (EC). This study aimed to assess the potential role of long non-coding RNA (lncRNA) BANCR in the pathogenesis and progression of type 1 EC. METHODS: Quantitative reverse transcription polymerase chain reaction (qRT-PCR) was used to confirm the expression of BANCR in type 1 EC tissue, and analyze its clinical significance...
November 30, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27894112/association-of-mbl2-gene-polymorphism-with-dental-caries-in-saudi-children
#4
Yousef M Alyousef, J Francis Borgio, Sayed AbdulAzeez, Naif Al-Masoud, Ali A Al-Ali, Emad Al-Shwaimi, Amein K Al-Ali
The high prevalence of dental caries in children worldwide is a major oral health problem which requires early intervention. Dental caries is mainly caused by the action of acids produced by bacteria in addition to many other factors. Recent genetic studies have reported that a number of genes are associated with the susceptibility to dental caries. The majority of these genes are associated with inflammation, increased susceptibility to infection, and dentine matrix formation. Using the TaqMan assay and direct DNA sequencing, the prevalence of 6 single-nucleotide polymorphisms (SNPs) in MMP9, MBL2, MMP2, and TIMP2 genes was determined in 102 children with caries and in 100 age-matched caries-free controls...
November 29, 2016: Caries Research
https://www.readbyqxmd.com/read/27880866/tgf-%C3%AE-1-stimulates-movement-of-renal-proximal-tubular-epithelial-cells-in-a-three-dimensional-cell-culture-via-an-autocrine-tgf-%C3%AE-2-production
#5
Deyi Luo, Qiunong Guan, Kunjie Wang, Christopher Y C Nguan, Caigan Du
TGF-βs are multifunctional cytokines, but their roles in human renal homeostasis are not fully understood. This study investigated the role of TGF-β1 in the movement of human renal proximal tubular epithelial cells (PTECs) in a three-dimensional (3D) model. HKC-8 cells, a human PTEC line, were grown in a 3D collagen culture system. Cell movement was observed under a microscope. The gene expression was examined using PCR Arrays or qRT-PCR, and protein levels by Western blot. Here, we showed that the tight junction structure formed between adjacent cells of a HKC-8 cell colony in 3D cultures, and TGF-β1 stimulated their movement, evidenced by the appearance of fingerlike pseudopodia in the leader cells at the edge of the colonies...
November 20, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27866058/timing-and-duration-of-nursing-from-birth-affect-neonatal-porcine-uterine-matrix-metalloproteinase-9-and-tissue-inhibitor-of-metalloproteinase-1
#6
T Y Ho, K M Rahman, M E Camp, A A Wiley, F F Bartol, C A Bagnell
Nursing for 2 d from birth supports neonatal porcine uterine and cervical development. However, it is not clear how timing or duration of lactocrine signaling from birth (postnatal day = PND 0) affects development of neonatal female reproductive tract tissues. Therefore, studies were conducted to determine effects of age at first nursing and duration of nursing from birth on specific elements of the matrix metalloproteinase (MMP)/tissue inhibitor of metalloproteinase (TIMP) system in uterine and cervical tissues at PND 2...
October 27, 2016: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/27862165/grk2-%C3%AE-arrestin-mediates-arginine-vasopressin-induced-cardiac-fibroblast-proliferation
#7
Yunxuan Chen, Feifei Xu, Lingling Zhang, Xiaojun Wang, Yifan Wang, AnthonyYiu-Ho Woo, Weizhong Zhu
Cardiac fibrosis is a pathological feature commonly foundinheartsexposed to hemodynamic orneurohormonal stress. Elevated levels of arginine vasopressin (AVP) are closely associated with the progression ofheart failure and could be an underlyingcauseof cardiac fibrosis. The aim of this study is to characterize the effect of AVP on neonatal rat cardiac fibroblasts (NRCFs) and to illustrate itssignallingmechanism. The proliferative effect of AVP was assessed by methylthiazolyldiphenyl-tetrazoliumassay and 5-bromo-2'-deoxyuridine (BrdU) incorporation assay, and the amounts of cellular signallingproteins α-smooth muscle actin(α-SMA),matrix metalloproteinase (MMP) 2, MMP9, and phosphorylated ERK1/2 were determined by Western blotting...
November 14, 2016: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/27834930/ttf1-in-the-form-of-nanoparticles-inhibits-angiogenesis-cell-migration-and-cell-invasion-in-vitro-and-in-vivo-in-human-hepatoma-through-stat3-regulation
#8
Bin Xiao, Dongjing Lin, Xuan Zhang, Meilan Zhang, Xuewu Zhang
TTF1-NP (5,2',4'-trihydroxy-6,7,5'-trimethoxyflavone nanoparticles), derived from the traditional Changbai Mountain medicinal plant Sorbaria sorbifolia (SS), has been showed its anti-cancer effect in various liver cancer cell types and tissues. The present study was designed to evaluate the antitumor mechanism of the TTF1-NP against HepG2 hepatoma cells and HepG2 cells-induced hepatocarcinoma (HCC) in nude mouse model. Here we demonstrated that TTF1-NP inhibits tube formation of HUVECs and HepG2 cell migration and invasion, and inhibits tumor growth in nude mice implanted with HepG2 cells through the downregulation of STAT3 protein and activation, along with VEGF, KDR, bFGF, MMP2 and MMP9 levels...
November 10, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27832972/cxcl1-from-tumor-associated-lymphatic-endothelial-cells-drives-gastric-cancer-cell-into-lymphatic-system-via-activating-integrin-%C3%AE-1-fak-akt-signaling
#9
Zhixiong Wang, Zhao Wang, Guanghua Li, Hui Wu, Kaiyu Sun, Jianhui Chen, Yun Feng, Chuangqi Chen, Shirong Cai, Jianbo Xu, Yulong He
Crosstalk between lymphatic endothelial cells (LECs) and tumor cells in the tumor microenvironment plays a crucial role in tumor metastasis. Our previous study indicated chemokine (C-X-C motif) ligand 1 (CXCL1) from LECs stimulates the metastasis of gastric cancer. However, the mechanism is still unclear. Here, we successfully isolated tumor-associated LECs (T-LECs) and normal LECs (N-LECs) from clinical samples by magnetic-activated cell sorting system (MACS) and proved that CXCL1 expression was elevated in T-LECs compared with N-LECs in situ and vitro...
November 8, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27826041/smc1a-recruits-tumor-associated-fibroblasts-tafs-and-promotes-colorectal-cancer-metastasis
#10
Pengyang Zhou, Nan Xiao, Jian Wang, Zhanhuai Wang, Shuchun Zheng, Siyang Shan, Jianping Wang, Jinlin Du, Jianwei Wang
Tumor-associated-fibroblasts (TAFs) are the most important host cells in the stroma and take part in extracellular matrix construction and cancer colony development. During cancer colonization, seed cells from primary tumor can reconstruct the microenvironment by recruiting circulating cancer cells and TAFs to the metastasis site. Previous studies have established that SMC1A, a subunit of cohesin, is an important trigger signal for liver metastasis in colorectal cancer. We investigated the particular effects as well as the underlying mechanism of SMC1A on TAFs recruitment during liver metastasis of colorectal cancer...
November 4, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27823619/chikusetsusaponin-iva-methyl-ester-induces-g1-cell-cycle-arrest-triggers-apoptosis-and-inhibits-migration-and-invasion-in-ovarian-cancer-cells
#11
Xin Chen, Qiu-Shuang Wu, Fan-Cheng Meng, Zheng-Hai Tang, Xiuping Chen, Li-Gen Lin, Ping Chen, Wen-An Qiang, Yi-Tao Wang, Qing-Wen Zhang, Jin-Jian Lu
BACKGROUND: Panacis Japonici Rhizoma (PJR) is one of the most famous Chinese medical herbs that is known for exhibiting potential anti-cancer effects. PURPOSE: This study aims to isolate and investigate the anti-cancer potential of saponins from PJR in ovarian cancer cells. METHODS: The compounds were separated by comprehensive chromatographic methods. By comparison of the 1H- and 13C NMR data, as well as the HR-ESI-MS data, with the corresponding references, the structures of compounds were determined...
December 1, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27822661/extracellular-matrix-remodeling-derangement-in-ex-obese-patients
#12
Iryna Hirata Prist, Alessandra Grassi Salles, Thais Martins de Lima, Miguel Luiz Antônio Modolin, Rolf Gemperli, Heraldo Possolo Souza
A known consequence of the large weight loss after bariatric surgery is the appearance of large skinfolds, particularly in the abdomen region of the patients. The balance between the synthesis of extracellular matrix (ECM) components and their proteolysis, mainly by fibrinolytic systems and matrix metalloproteases (MMPs), may be disturbed in these patients. The causes underlying the deregulation of ECM remodeling that occurs in these patients are not, however, clear. We investigated molecular mechanisms responsible for this dysfunction of ECM remodeling process, comparing it to normal skin...
November 7, 2016: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/27815258/inflammation-and-lung-injury-in-an-ovine-model-of-extracorporeal-membrane-oxygenation-support
#13
Margaret Passmore, Yoke L Fung, Gabriela Simonova, Samuel R Foley, Kimble R Dunster, Sara D Diab, John-Paul Tung, Robyn M Minchinton, Charles I McDonald, Chris M Anstey, Kiran Shekar, John F Fraser
Extracorporeal membrane oxygenation (ECMO) is a life-saving treatment for patients with severe, refractory, cardiorespiratory failure. Exposure to the ECMO circuit is thought to trigger/exacerbate inflammation. Determining whether inflammation is due to the patients underlying pathologies or the ECMO circuit is difficult. To discern how different insults contribute to the inflammatory response we developed an ovine model of lung injury and ECMO to investigate the impact of smoke-induced lung injury and ECMO in isolation and cumulatively on pulmonary and circulating inflammatory cells, cytokines and tissue remodeling...
November 4, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27810779/intravenous-transfusion-of-endothelial-progenitor-cells-that-overexpress-vitamin-d-receptor-inhibits-atherosclerosis-in-apoe-deficient-mice
#14
Wei Xiang, Zhi-Lan Hu, Xiao-Jie He, Xi-Qiang Dang
Endothelial progenitor cells (EPCs) are widely used for angiogenic therapies, as well as predictive biomarkers to assess cardiovascular disease risk. However, it is unknown that whether overexpressed vitamin D receptor (VDR) in EPCs could help EPCs counteracting atherosclerotic risks. Here, we study intravenous transplantation of genetically modified EPCs over-expressing VDR in regulating endothelial dysfunction and spontaneously arising atherosclerotic plaques of ApoE-deficient mice. Firstly, we found that over-expression of VDR in EPCs could reduce atherosclerotic plaque formation in transplanted ApoE-/- mice...
October 27, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27807072/introduction-of-id2-enhances-invasiveness-in-id2-null-oral-squamous-cell-carcinoma-cells-via-the-snail-axis
#15
Y U Kamata, Tomoki Sumida, Yosuke Kobayashi, Akiko Ishikawa, Wataru Kumamaru, Yoshihide Mori
AIM: Inhibitor of DNA-binding (ID) proteins are negative regulators of basic helix-loop-helix transcription factors that generally stimulate cell proliferation and inhibit differentiation. However, the role of ID2 in cancer progression remains ambiguous. Here, we investigated the function of ID2 in ID2-null oral squamous cell carcinoma (OSCC) cells. MATERIALS AND METHODS: We introduced an ID2 cDNA construct into ID2-null OSCC cells and compared them with empty-vector-transfected cells in terms of cell proliferation, invasion, and activity and expression of matrix metalloproteinase (MMP)...
November 2016: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/27806326/glypican-5-suppresses-epithelial-mesenchymal-transition-of-the-lung-adenocarcinoma-by-competitively-binding-to-wnt3a
#16
Siwei Wang, Mantang Qiu, Wenjia Xia, Youtao Xu, Qixing Mao, Jie Wang, Gaochao Dong, Lin Xu, Xin Yang, Rong Yin
We previously demonstrated that Glypican-5 (GPC5), one of the members of heparan sulfate proteoglycan, was a novel tumor metastasis suppressor in lung adenocarcinoma (LAC). However, it remains unclear how GPC5 suppresses lung cancer metastasis. Here, we found over-expression GPC5 induced significant Epithelial-Mesenchymal Transition (EMT) process of A549 cells in vitro. Bioinformatic analysis of RNA sequencing data indicated that GPC5 was co-expressed with EMT related markers, E-cadherin and Vimentin. Wnt/β-catenin signaling pathway was also significantly enriched after overexpressing GPC5...
October 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/27789576/the-role-and-regulation-of-rab40b-tks5-complex-during-invadopodia-formation-and-cancer-cell-invasion
#17
Abitha Jacob, Erik Linklater, Brian A Bayless, Traci Lyons, Rytis Prekeris
Invadopodia formation and extracellular matrix degradation are key events during cancer cell invasion, yet little is known about mechanisms mediating these processes. Here, we report that Rab40b plays a key role in mediating invadopodia function during breast cancer cell invasion. We also identify Tks5 (also known as SH3PXD2A), a known Src kinase substrate, as a new Rab40b effector protein and show that Tks5 functions as a tether that mediates Rab40b-dependent targeting of transport vesicles containing MMP2 and MMP9 to the extending invadopodia...
December 1, 2016: Journal of Cell Science
https://www.readbyqxmd.com/read/27779709/comparative-gene-expression-profiling-of-adams-mmps-timps-emmprin-egf-r-and-vegfa-in-low-grade-meningioma
#18
Harcharan K Rooprai, Andrew J Martin, Andrew King, Usha D Appadu, Huw Jones, Richard P Selway, Richard W Gullan, Geoffrey J Pilkington
MMPs (matrix metalloproteinases), ADAMs (a disintegrin and metalloproteinase) and TIMPs (tissue inhibitors of metalloproteinases) are implicated in invasion and angiogenesis: both are tissue remodeling processes involving regulated proteolysis of the extracellular matrix, growth factors and their receptors. The expression of these three groups and their correlations with clinical behaviour has been reported in gliomas but a similar comprehensive study in meningiomas is lacking. In this study, we aimed to evaluate the patterns of expression of 23 MMPs, 4 TIMPs, 8 ADAMs, selective growth factors and their receptors in 17 benign meningiomas using a quantitative real-time polymerase chain reaction (qPCR)...
October 18, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27774979/knockdown-of-high-mobility-group-box-3-hmgb3-expression-inhibits-proliferation-reduces-migration-and-affects-chemosensitivity-in-gastric-cancer-cells
#19
Shengnan Guo, Yuanyuan Wang, Yu Gao, Yinxu Zhang, Mingzi Chen, Minghao Xu, Lu Hu, Yu Jing, Fangyu Jing, Chen Li, Qingjun Wang, Zhitu Zhu
BACKGROUND High mobility group-box 3 (HMGB3) has been shown to affect tumor initiation and progression. This research aimed to investigate the role of HMGB3 in gastric cancer (GC) cell proliferation, migration, invasion, chemoresistance, and its potential molecular mechanisms. MATERIAL AND METHODS GC MGC803 and BGC823 cells were transfected with siRNA targeting the HMGB3 gene. The expressions of HMGB3 protein in MGC803 and BGC823 cells after transfection were detected by Western blot assays. We detected cell proliferation and cell cycle by MTT and flow cytometry assay...
October 24, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27769178/autonomic-remodeling-may-be-responsible-for-decreased-incidence-of-aortic-dissection-in-stz-induced-diabetic-rats-via-down-regulation-of-matrix-metalloprotease-2
#20
Rui Hu, Zhiwei Wang, Zongli Ren, Min Liu
BACKGROUND: Epidemiological studies reported that diabetic patients had a lower incidence of aortic dissection (AD), but the definite mechanism is unknown. We aim to investigate the possible protective effect of diabetes mellitus (DM) on AD formation with an emphasis on autonomic remodeling. METHODS: Streptozotocin (STZ) intraperitoneal injection was applied to induce diabetes, unilateral renal artery stenosis (URAS) together with β-amino propionitrile (BAPN) oral treatment was used to induce AD...
October 21, 2016: BMC Cardiovascular Disorders
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