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https://www.readbyqxmd.com/read/28646585/prognostic-value-of-cell-cycle-arrest-biomarkers-in-patients-at-high-risk-for-acute-kidney-injury-a-systematic-review-and-meta-analysis
#1
REVIEW
Hui-Miao Jia, Li-Feng Huang, Yue Zheng, Wen-Xiong Li
AIM: Urinary tissue inhibitor of metalloproteinase-2 (TIMP-2) and insulin-like growth factor binding protein 7 (IGFBP7) are G1 cell cycle arrest biomarkers. This systematic review aimed to evaluate the prognostic value of urinary [TIMP-2]·[IGFBP7] in patients at high risk for AKI. METHODS: The MEDLINE (via PubMed), Ovid, EMBASE and Cochrane Library databases were systematically searched from inception to December 25, 2016. Original clinical studies which met the eligibility criteria were included in this study...
June 24, 2017: Nephrology
https://www.readbyqxmd.com/read/28627739/use-of-a-protein-engineering-strategy-to-overcome-limitations-in-the-production-of-difficult-to-express-recombinant-proteins
#2
Hirra Hussain, David I Fisher, W Mark Abbott, Robert G Roth, Alan J Dickson
Certain recombinant proteins are deemed "difficult to express" in mammalian expression systems requiring significant cell and/or process engineering to abrogate expression bottlenecks. With increasing demand for the production of recombinant proteins in mammalian cells, low protein yields can have significant consequences for industrial processes. To investigate the molecular mechanisms that restrict expression of recombinant proteins, naturally secreted model proteins were analysed from the tissue inhibitors of metalloproteinase (TIMP) protein family...
June 19, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28601470/tissue-and-serum-mrna-profile-of-mmps-2-9-as-a-potential-novel-biomarker-for-the-most-individual-approach-in-infantile-hemangiomas-and-cancer-disease
#3
Katarzyna Taran, Aneta Wnęk, Józef Kobos, Ewa Andrzejewska, Przemysław Przewratil
Propranolol is a widely-known beta-blocker approved for treating infantile hemangiomas (IH). The mechanisms behind the spectacular IH involution after propranolol treatment remain unclear. Recently, there is strong evidence of overexpression of numerous angiogenic factors in IH tissues, and it is reported that propranolol influences their pathways. However, a number of MMPs studies is highly limited. Here, for the first time, we propose a comprehensive approach by analyzing the expression levels of metalloproteinases-2/9 (MMPs-2/9) and tissue metalloproteinase inhibitor-2 (TIMP-2) in vivo on both, molecular and immunohistochemical levels, and in both, IH tissues and in the serum of IH patients, and relates the obtained results to the tumor's biology and systemic propranolol treatment...
June 3, 2017: Immunobiology
https://www.readbyqxmd.com/read/28600524/disruption-of-retinal-pigment-epithelial-cell-properties-under-the-exposure-of-cotinine
#4
Xiao-Yu Zhang, Tsz Kin Ng, Mårten Erik Brelén, Kwok Ping Chan, Di Wu, Jasmine Sum Yee Yung, Di Cao, Yumeng Wang, Shaodan Zhang, Sun On Chan, Chi Pui Pang
Cigarette smoking is a major risk factor for age-related macular degeneration (AMD), in which progressive retinal pigment epithelial (RPE) cell degeneration is a major pathological change. Nicotine is a major biologically active component in cigarette smoke. It is continuously catabolized into cotinine, which has longer half-life and higher concentration in tissue cells and fluids. Here we hypothesized that continuous exposure of cotinine has more potent effects on human RPE cell properties than nicotine. Human RPE cell line (ARPE-19) was treated continuously with 1-2 µM of nicotine and/or cotinine for 7 days...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28587339/orf3-as-a-sensitive-and-specific-diagnostic-index-for-hepatitis-e
#5
Lijuan Li, Min Liu, Chengrui Geng, Yunmei Zou, Tong Jiao
We explored the significance of the expression of hepatitis E virus (HEV) open reading frame 3 (ORF3) in hepatitis E rat models. We also investigated its diagnostic value. Forty Sprague-Dawley (SD) rats were infected with HEV and 10 uninfected rats were selected for the control group. Rats were sacrificed at 14, 21, 35 and 70 days after infection. They were divided into 4 groups: Model group 1, model group 2, model group 3 and model group 4. ORF3 protein expression level in liver tissue, level of adipokines [fatty acid synthase (FAS), tissue inhibitor of metalloproteinase-2 (TIMP-2) and angiotensin-converting enzyme inhibitor 2 (ACE-2)], Th1/Th2 cells balance [interferon (IFN), interleukin-4 (IL-4) and Th1/Th2] and the level of immune outcome (levels of CD4(+), CD8(+) T lymphocytes and CD4(+)/CD8(+)) were measured and compared among groups...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28586031/punicalagin-suppresses-the-proliferation-and-invasion-of-cervical-cancer-cells-through-inhibition-of-the-%C3%AE-catenin-pathway
#6
Jianming Tang, Bingshu Li, Shasha Hong, Cheng Liu, Jie Min, Ming Hu, Yang Li, Yaodan Liu, Li Hong
Natural botanical drugs have attracted attention due to their cancer chemopreventive and chemotherapeutic properties in cancer. Punicalagin (PUN) is the major bioactive component of pomegranate peel, and has been shown to have antioxidant, anti-inflammatory, antiviral, antiproliferation and anticancer properties. PUN has been shown to induce apoptosis in several cancer cell lines. The aim of the present study was to investigate the effect of PUN on HeLa human cervical cancer cells in vitro. The viability of the HeLa cells was assessed following treatment with PUN (0, 12...
June 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28576405/protective-effects-of-donepezil-against-endothelial-permeability
#7
Xuelu Tang, Xiuhua Di, Yilin Liu
The endothelium lines the interior surface of blood vessels, and under pathophysiologic conditions, its integrity can be compromised due to a disturbance in the expression of tight junctions. Donepezil is a licensed drug used in the palliative treatment of Alzheimer's disease (AD). Increasing evidence has reported that donepezil has an anti-inflammatory activity. However, little information is available regarding the role of donepezil in vascular diseases. In this study, we found that pretreatment with donepezil significantly ameliorated endothelial permeability induced by tumor necrosis factor (TNF-α) by restoring the expression of the tight junction proteins vascular endothelial cadherin (VE-cadherin) and zonula occludens-1 (ZO-1) in human umbilical vein endothelial cells (HUVECs)...
May 30, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28575805/niclosamide-induces-apoptosis-through-mitochondrial-intrinsic-pathway-and-inhibits-migration-and-invasion-in-human-thyroid-cancer-in-vitro
#8
Kai Yu, Tingting Wang, Yujue Li, Chun Wang, Xia Wang, Mei Zhang, Yongmei Xie, Shuangqing Li, Zhenmei An, Tinghong Ye
The morbidity of thyroid cancer has been rising obviously throughout the world during the past years. Classic treatment procedure is generally curable for low risk differentiated thyroid cancer, but may lead to many postoperative complications. And low-level of thyroid stimulating hormone after surgery has side effects on both cardiovascular system and skeletal system. Furthermore effective treatment approaches for more aggressive differentiated thyroid cancer, poorly differentiated thyroid cancer and anaplastic thyroid cancer are absent, thus new candidates that can inhibit tumor growth and metastasis are urgently needed...
May 29, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28573088/matrix-metalloproteases-and-their-tissue-inhibitors-in-non-alcoholic-liver-fibrosis-of-human-immunodeficiency-virus-infected-patients
#9
Julio Collazos, Eulalia Valle-Garay, Tomás Suárez-Zarracina, Angel-Hugo Montes, José A Cartón, Víctor Asensi
AIM: To investigate the relationships among diverse metalloproteases (MMPs) and their tissue inhibitors (TIMPs) and non-alcoholic liver fibrosis in human immunodeficiency virus (HIV)-infected patients. METHODS: Single nucleotide polymorphisms (SNPs) in MMPs, TNF-α and CCR5 genes, and serum levels of MMPs and TIMPs were determined in HIV-infected individuals with/out hepatitis C virus (HCV) coinfection. A total of 158 patients were included, 57 of whom were HCV-coinfected...
May 12, 2017: World Journal of Virology
https://www.readbyqxmd.com/read/28558754/urinary-timp-2-and-igfbp7-for-the-prediction-of-acute-kidney-injury-following-cardiac-surgery
#10
Yimei Wang, Zhouping Zou, Jifu Jin, Jie Teng, Jiarui Xu, Bo Shen, Wuhua Jiang, Yamin Zhuang, Lan Liu, Zhe Luo, Chunsheng Wang, Xiaoqiang Ding
BACKGROUND: Acute kidney injury (AKI) following cardiac surgery is common and associated with poor patient outcomes. Early risk assessment for development of AKI remains a challenge. The combination of urinary tissue inhibitor of metalloproteinase 2 (TIMP-2) and insulin-like growth factor binding protein 7 (IGFBP7) has been shown to be an excellent predictor of AKI following cardiac surgery, but reported studies are for predominately non-Asian populations. METHODS: Adult patients were prospectively enrolled at Zhongshan hospital in Shanghai, China...
May 30, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28552725/the-inhibitory-effect-of-anti-tumor-polysaccharide-from-punica-granatum-on-metastasis
#11
Sheeja Varghese, Manu M Joseph, Aravind S R, Unnikrishnan B S, T T Sreelekha
Galactomannan (PSP001) isolated from the fruit rind of Punica granatum was demonstrated as an excellent antioxidant, immunomodulatory and anticancer agent both in vitro and in vivo models. Since the most lethal and debilitating attribute of cancer cells is their ability to evolve to a state of malignancy, with key features like increased angiogenesis, invasion, migration, colony formation, and metastasis, the present study focused on evaluating the effects of the galactomannan on tumor and malignancy. PSP001 effectively reduced the neovascularization in chick embryos highlighting its potential as an angiogenic inhibitor...
May 25, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28545187/enterolactone-suppresses-proliferation-migration-and-metastasis-of-mda-mb-231-breast-cancer-cells-through-inhibition-of-upa-induced-plasmin-activation-and-mmps-mediated-ecm-remodeling
#12
Aniket V Mali, Asavari A Joshi, Mahabaleshwar V Hegde, Shivajirao S Kadam
Background: To enhance their own survival, tumor cells can manipulate their microenvironment through remodeling of the extra cellular matrix (ECM). The urokinase-type plasminogen activator (uPA) system catalyzes plasmin production which further mediates activation of matrix metalloproteinases (MMPs) and plays an important role in breast cancer invasion and metastasis through ECM remodeling. This provides a potential target for therapeutic intervention of breast cancer treatment. Enterolactone (EL) is derived from dietary flax lignans in the human body and is known to have anti-breast cancer activity...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28539825/effects-of-c-reactive-protein-on-the-expression-of-matrix-metalloproteinases-and-their-inhibitors-via-fc%C3%AE-receptors-on-3t3-l1-adipocytes
#13
Kumiko Nakai, Hideki Tanaka, Kazuhiro Yamanaka, Yumi Takahashi, Fumiko Murakami, Rieko Matsuike, Jumpei Sekino, Natsuko Tanabe, Toyoko Morita, Yoji Yamazaki, Takayuki Kawato, Masao Maeno
The association between obesity and inflammation is well documented in epidemiological studies. Proteolysis of extracellular matrix (ECM) proteins is involved in adipose tissue enlargement, and matrix metalloproteinases (MMPs) collectively cleave all ECM proteins. Here, we examined the effects of C-reactive protein (CRP), an inflammatory biomarker, on the expression of MMPs and tissue inhibitors of metalloproteinases (TIMPs), which are natural inhibitors of MMPs, in adipocyte-differentiated 3T3-L1 cells. We analyzed the expression of Fcγ receptor (FcγR) IIb and FcγRIII, which are candidates for CRP receptors, and the effects of anti-CD16/CD32 antibodies, which can act as FcγRII and FcγRIII blockers on CRP-induced alteration of MMP and TIMP expression...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28537976/interest-of-urinary-timp-2-%C3%A3-igfbp-7-for-predicting-the-occurrence-of-acute-kidney-injury-after-cardiac-surgery-a-gray-zone-approach
#14
Toufic Finge, Sebastien Bertran, Claire Roger, Damien Candela, Bruno Pereira, Christopher Scott, Laurent Muller, Benjamin Louart, Jean-Yves Lefrant
BACKGROUND: This study assessed the ability of 3-hour postoperative urinary tissue inhibitor of metalloproteinases-2 × insulin-like growth factor binding protein-7 ([TIMP-2] × [IGFBP-7]) to predict postoperative acute kidney injury (AKI) in patients undergoing cardiopulmonary bypass during cardiac surgery. METHODS: Patients undergoing cardiac surgery with cardiopulmonary bypass were eligible for this study. Patients with initial chronic renal insufficiency requiring renal replacement therapy, patients <18 years of age, and parturients were not included...
May 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28535015/the-circadian-clock-gene-per2-plays-an-important-role-in-tumor-suppression-through-regulating-tumor-associated-genes-in-human-oral-squamous-cell-carcinoma
#15
Xiaoli Su, Dan Chen, Kai Yang, Qin Zhao, Dan Zhao, Xiaoqiang Lv, Yiran Ao
Low expression of the clock gene PER2 is closely related to carcinogenesis and the development of cancer; however, the mechanism of the low expression of PER2 that led to cell malignant transformation remains unclear. This study used RNA interference (RNAi) technology to silence PER2 in SCC15 human oral squamous cell carcinoma (OSCC) cells. Then it was found that the ability of cancer cell proliferation, migration, and invasion were markedly increased (P<0.05), and the ability of cancer cell apoptosis and the number of cells in G1/G0 phase were markedly reduced (P<0...
May 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28522569/brain-derived-neurotrophic-factor-and-airway-fibrosis-in-asthma
#16
Michelle R Freeman, Venkatachalem Sathish, Logan J Manlove, Shengyu Wang, Rodney D Britt, Michael A Thompson, Christina M Pabelick, Y S Prakash
Airway remodeling in asthma driven by inflammation involves proliferation of epithelial cells and airway smooth muscle (ASM), as well as enhanced extracellular matrix (ECM) generation and deposition, i.e. fibrosis. Accordingly, understanding pro-fibrotic mechanisms is important for developing novel therapeutic strategies in asthma. Recent studies, including our own, have suggested a role for locally-produced growth factors such as brain-derived neurotrophic factor (BDNF) in mediating and modulating inflammation effects...
May 18, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28510611/mmp-10-mmp-7-timp-1-and-timp-2-mrna-expression-in-esophageal-cancer
#17
Agnieszka Juchniewicz, Oksana Kowalczuk, Robert Milewski, Wojciech Laudański, Piotr Dzięgielewski, Mirosław Kozłowski, Jacek Nikliński
INTRODUCTION: Tissue inhibitors of metalloproteinases (TIMP) and the matrix metalloproteinases (MMP) are involved in the spread of cancer. METHODS: We have evaluated the matrix metalloproteinases' (MMP-10, MMP-7) and their inhibitors' (tissue inhibitors of metalloproteinases - TIMP-1, TIMP-2) mRNA expression in 61 esophageal cancer samples from patients who had undergone surgery, by using real-time quantitative RT-PCR, and correlated the results with the patient clinicopathologic features...
2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28506859/the-obstructed-bladder-expression-of-collagen-matrix-metalloproteinases-muscarinic-receptors-and-angiogenic-and-neurotrophic-factors-in-patients-with-benign-prostatic-hyperplasia
#18
João Arthur Brunhara Alves Barbosa, Sabrina T Reis, Marco Nunes, Yuri A Ferreira, Katia R Leite, William C Nahas, Miguel Srougi, Alberto A Antunes
OBJECTIVE: To evaluate the gene expression of collagen, matrix metalloproteinases (MMPs) and inhibitors, cholinergic muscarinic receptors (CHRMs), and angiogenic and nerve growth factors (NGFs) in the bladder of patients with bladder outlet obstruction caused by benign prostatic hyperplasia (BPH). METHODS: We analyzed bladder specimens from 43 patients with obstructive BPH undergoing transurethral resection of the prostate as compared to 10 age-matched controls with an International Prostatic Symptom Score of <8 and a prostate volume of <30 g...
May 12, 2017: Urology
https://www.readbyqxmd.com/read/28504959/casticin-attenuates-liver-fibrosis-and-hepatic-stellate-cell-activation-by-blocking-tgf-%C3%AE-smad-signaling-pathway
#19
Ling Zhou, Xiaoying Dong, Linlin Wang, Lanlan Shan, Ting Li, Wanfu Xu, Yan Ding, Mingqiang Lai, Xiaojun Lin, Meng Dai, Xiaochun Bai, Chunhong Jia, Hang Zheng
Although many advances have been made in understanding the pathogenesis of liver fibrosis, few options are available for treatment. Casticin, one of the major flavonoids in Fructus Viticis extracts, has shown hepatoprotective potential, but its effects on liver fibrosis are not clear. In this study, we investigated the antifibrotic activity of casticin and its underlying mechanism in vivo and in vitro. Male mice were injected intraperitoneally with carbon tetrachloride (CCl4) or underwent bile duct ligation (BDL) to induce liver fibrosis, followed by treatment with casticin or vehicle...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28499840/antimicrobial-peptide-ksl-w-promotes-gingival-fibroblast-healing-properties-in-vitro
#20
Hyun-Jin Park, Mabrouka Salem, Abdelhabib Semlali, Kai P Leung, Mahmoud Rouabhia
We investigated the effect of synthetic antimicrobial decapeptide KSL-W (KKVVFWVKFK) on normal human gingival fibroblast growth, migration, collagen gel contraction, and α-smooth muscle actin protein expression. Results show that in addition to promoting fibroblast adhesion by increasing F-actin production, peptide KSL-W promoted cell growth by increasing the S and G2/M cell cycle phases, and enhanced the secretion of metalloproteinase (MMP)-1 and MMP-2 by upregulating MMP inhibitors, such as tissue inhibitors of metalloproteinase (TIMP)-1 and TIMP-2 in fibroblasts...
May 10, 2017: Peptides
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