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Christelle Sanchez, Gabriel Mazzucchelli, Cécile Lambert, Fanny Comblain, Edwin DePauw, Yves Henrotin
OBJECTIVE: Osteoarthritis (OA) is characterized by cartilage degradation but also by other joint tissues modifications like subchondral bone sclerosis. In this study, we used a proteomic approach to compare secretome of osteoblast isolated from sclerotic (SC) or non sclerotic (NSC) area of OA subchondral bone. DESIGN: Secretome was analyzed using differential quantitative and relative label free analysis on nanoUPLC G2 HDMS system. mRNA of the more differentially secreted proteins were quantified by RT-PCR in cell culture from 5 other patients...
2018: PloS One
Xiaoyan Wen, Liyan Cui, Seth Morrisroe, Donald Maberry, David R Emlet, Simon C Watkins, Neil A Hukriede, John A Kellum
Sepsis-associated acute kidney injury (S-AKI) independently predicts mortality among critically ill patients. The role of innate immunity in this process is unclear, and there is an unmet need for S-AKI models to delineate the pathophysiological response. Mammals and zebrafish (Danio rerio) share a conserved nephron structure and homologous innate immune systems, making the latter suitable for sepsis-associated AKI research. We introduced Edwardsiella tarda (E.tarda) to the zebrafish. Systemic E. tarda bacteremia resulted in sustained bacterial infection and dose-dependent mortality...
March 14, 2018: American Journal of Physiology. Renal Physiology
Tingting Hu, Mengyun Yao, Xiaoxia Fu, Chaolu Chen, Ruijin Wu
Polychlorinated biphenyls (PCBs), as part of environmental contaminants, have been proved to be related to endometriosis. This study is to investigate the effect of PCB 104 on cell migration, invasion and resultant gene expression in endometrial stromal cells (ESCs). Fifty-three specimens of eutopic endometrial tissues were collected from twenty-four women with endometriosis (EU-EMS) and twenty-nine women without endometriosis (EU-NON). Both EU-EMS and EU-NON were divided into the PCB 104 exposure group and the control group according to whether they were exposed to PCB 104...
March 10, 2018: Toxicology Letters
Katja M Gist, David S Cooper, Julia Wrona, Sarah Faubel, Christopher Altmann, Zhiqian Gao, Bradley S Marino, Jeffrey Alten, Kristal M Hock, Tomoyuki Mizuno, Alexander A Vinks, Melanie S Joy, Michael F Wempe, Michael R Bennett, Stuart L Goldstein
BACKGROUND: Milrinone, an inotropic agent used ubiquitously in children after cardiac surgery, accumulates in acute kidney injury (AKI). We assessed if urinary AKI biomarkers are predictive of an increase in milrinone concentrations in infants after cardiac surgery. METHODS: Multicenter prospective pilot study of infants undergoing cardiac surgery. Urinary AKI biomarkers were measured in the urine at specific time intervals after cardiopulmonary bypass initiation...
April 2018: Therapeutic Drug Monitoring
Katarzyna Kapelko-Słowik, Mirosław Słowik, Marek Szaliński, Jarosław Dybko, Dariusz Wołowiec, Iwona Prajs, Anna Bohdanowicz-Pawlak, Monika Biernat, Donata Urbaniak-Kujda
BACKGROUND: Graves' orbitopathy (GO), also known as thyroid-associated ophthalmopathy, is characterized by dramatic tissue reactivity. Both inflammation and tissue remodeling characterize the clinical course of GO. Some data has been found regarding the association of MMPs and TIMPs in GO. MATERIAL AND METHODS: Serum concentrations of MMP-9, MMP-2, TIMP-1, and TIMP-2 were determined by ELISA method. OBJECTIVES: Forty-eight patients (34 females, 14 males, with median age 51...
January 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Yuji Yamada, Ananda Chowdhury, Joel P Schneider, William G Stetler-Stevenson
Tissue Inhibitor of Metalloproteinase 2 (TIMP-2), is an endogenous 22 kDa proteinase inhibitor, demonstrating anti-tumorigenic, anti-metastatic and anti-angiogenic activities in vitro and in vivo. Recombinant TIMP-2 is currently undergoing preclinical testing in multiple, murine tumor models. Here we report the development of an inert, injectable peptide hydrogel matrix enabling encapsulation and sustained release of TIMP-2. We studied the TIMP-2 release profile from four ß-hairpin peptide gels of varying net electrostatic charge...
March 5, 2018: Biomacromolecules
Felix C F Schmitt, Eduardo Salgado, Janina Friebe, Thomas Schmoch, Florian Uhle, Thomas Fleming, Johanna Zemva, Lars Kihm, Christian Nusshag, Christian Morath, Martin Zeier, Thomas Bruckner, Arianeb Mehrabi, Peter P Nawroth, Markus A Weigand, Stefan Hofer, Thorsten Brenner
BACKGROUND: A prolonged cold ischemia time (CIT) is suspected to be associated with an increased ischemia and reperfusion injury (IRI) resulting in an increased damage to the graft. METHODS: In total, 91 patients were evaluated for a delayed graft function within 7 days after kidney transplantation (48 deceased, 43 living donors). Blood and urine samples were collected before, immediately after the operation, and 1, 3, 5, 7 and 10 days later. Plasma and/or urine levels of total keratin 18 (total K18), caspase-cleaved keratin 18 (cc K18), the soluble receptor for advanced glycation end-products (sRAGE), tissue inhibitor of metalloproteinase-2 and insulin-like growth factor-binding protein-7 ([TIMP-2]×[IGFBP7]) were measured...
March 5, 2018: Transplant International: Official Journal of the European Society for Organ Transplantation
Laura Di Leo, Federico Nalesso, Francesco Garzotto, Yun Xie, Bo Yang, Grazia Maria Virzì, Alberto Passannante, Raffaele Bonato, Mariarosa Carta, Davide Giavarina, Dario Gregori, Alessandra Brendolan, Fiorenza Ferrari, Claudio Ronco
BACKGROUND: Acute kidney injury (AKI) diagnosis is based on a rise in serum creatinine and/or fall in urine output. It has been shown that there are patients that fulfill AKI definition but do not have AKI, and there are also patients with evidence of renal injury who do not meet any criteria for AKI. Recently the innovative and emerging proteomic technology has enabled the identification of novel biomarkers that allow improved risk stratification. METHODS: Tissue inhibitor of metalloproteinases-2 (TIMP-2), insulin-like growth factor-binding protein 7 (IGFBP7) were measured to a cohort of 719 consecutive patients admitted to Intensive Care Unit (ICU)...
January 26, 2018: Blood Purification
Min Fang, Xiaolong Mei, Hui Yao, Tao Zhang, Tao Zhang, Na Lu, Yanshi Liu, Wenyue Xu, Chunyou Wan
The present study aimed to determine the anticancer effects of the combination of β-elemene and ligustrazine in vitro as well as in in vivo . Following evaluation using an MTT assay, β-elemene, ligustrazine and the β-elemene-ligustrazine combination treatments all exhibited the capacity to inhibit the growth of OS-732 cells, with inhibitory rates of 43.3, 54.4, and 75.0%, respectively. Using a flow cytometry assay, it was determined that the β-elemene-ligustrazine combination possessed the highest apoptotic rate (30...
March 2018: Oncology Letters
Zhengyuan Cheng, Lei Liu, Zhi Wang, Yingying Cai, Qing Xu, Pingsheng Chen
The aggravation of renal interstitial fibrosis in the advanced-stage of chronic kidney disease is related to decreased matrix metalloproteinase-2 (MMP-2) activity, which is induced by hypoxia in the kidney; however, the specific mechanism remains unclear. We previously demonstrated that inhibition of Caveolin-1, a key gene involved in endocytosis, increased MMP-2 activity in hypoxic HK-2 cells. It has been reported that activated Src (phospho-Src Tyr416) is a key molecule in multiple fibrotic pathways. However, whether Src functions on the regulation of Caveolin-1 and MMP-2 activity in hypoxic HK-2 cells remains poorly understood...
February 15, 2018: International Journal of Molecular Sciences
Wei Wang, Qing Li, Tao Yang, Dongsheng Li, Feng Ding, Hongzhi Sun, Guang Bai
Aquaporin 5 (AQP5) is a water channel protein that is over-expressed in many tumors. Elevated expression of AQP5 is associated with poor prognosis of colorectal cancer. Yet, whether AQP5 plays a role in epithelial-mesenchymal transition (EMT) of colorectal cancer has not been reported until now. Here we aim to investigate the function of AQP5 in the EMT process of colorectal cancer. We transfected HCT116 and SW480 cells with AQP5-specific shRNA and verified the knockdown efficiency through western blotting and real-time PCR...
February 17, 2018: Cytotechnology
Xuesheng Han, Tory L Parker
Arborvitae ( Thuja plicata ) essential oil (AEO) is becoming increasingly popular in skincare, although its biological activity in human skin cells has not been investigated. Therefore, we sought to study AEO's effect on 17 important protein biomarkers that are closely related to inflammation and tissue remodeling by using a pre-inflamed human dermal fibroblast culture model. AEO significantly inhibited the expression of vascular cell adhesion molecule 1 (VCAM-1), intracellular cell adhesion molecule 1 (ICAM-1), interferon gamma-induced protein 10 (IP-10), interferon-inducible T-cell chemoattractant (I-TAC), monokine induced by interferon gamma (MIG), and macrophage colony-stimulating factor (M-CSF)...
June 2017: Biochimie Open
Jie Peng, Bin Fu, Gan Fu, Xielan Zhao, Xiaolin Li, Fangping Chen
Acute myeloid leukemia (AML) is the most malignant myeloid disorder in adults. AML with mutated nucleophosmin (NPM1) is regarded as an independent leukemia subtype. According to previous studies, the role of NPM1 gene A mutation in AML has been well established; however, another major type, NPM1 gene B type mutation (NPM1 MutB) has been rarely reported. In the present study, we found that overexpression of NPM1 MutB enhanced the proliferation and invasion of THP-1 AML cells through the regulation of TIMP-2, MMP-2, Ang-1, c-myc and CCND1; led to no significant change of apoptosis rate with the absence of chemotherapy agents, while enhanced the chemosensitivity of THP-1 AML cells to chemotherapy agents DNR and Ara-C through the regulation of Bax, Bcl-2 and caspase-3...
October 1, 2017: Die Pharmazie
Anna Hrabia, Joanna K Socha, Andrzej Sechman
The study was undertaken to examine mRNA expression and localization of selected matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs), and the activity of MMPs in chicken postovulatory follicles (POFs) during their apoptotic regression. Apoptotic cells and apoptosis-related caspase expression and activity were examined as well. Chickens were sacrificed 2 h and 21 h after ovulation, and five POFs (POF1 to POF5) were isolated from the ovaries. It was found that the number of apoptotic cells (TUNEL-positive) increased along with follicle regression...
February 10, 2018: General and Comparative Endocrinology
Tie Guo, Haizhen Hao, Lv Zhou, Feng Zhou, Dan Yu
Tissue inhibitor of matrix metalloproteinase 2 (TIMP-2) regulates the extracellular matrix degradation, which involved in vascular remodeling and dysfunction, destabilization of atherosclerotic plaque and many other pathological processes. The rupture of atherosclerotic plaque is the trigger of Large artery atherosclerotic (LAA) stroke. We speculate that the Single nucleotide polymorphisms (SNPs) in TIMP-2 may have an association with LAA stroke. To prove this hypothesis, we conducted this case-control study...
January 12, 2018: Oncotarget
Yuang-Seng Tsuei, Ying-Erh Chou, Wen-Hsien Chen, Chao-Bao Luo, Shun-Fa Yang
BACKGROUND: Dural arteriovenous fistula (DAVF) is a rare but important cerebrovascular disorder in adults. Little is known about the molecular genetic pathogenesis underlying the development of DAVF. OBJECTIVES: The present study was conducted to investigate the associations of gene polymorphisms and DAVF. MATERIALS AND METHODS: Using real-time polymerase chain reaction (PCR) genotyping, 7 single-nucleotide polymorphisms (SNPs) of angiogenesis-related genes were analyzed in 72 DAVF patients...
February 12, 2018: Journal of Thrombosis and Haemostasis: JTH
Sherliane C Pereira, Juliana M Parente, Vanessa A Belo, Atlante S Mendes, Natália A Gonzaga, Gabriel T do Vale, Carla S Ceron, José Eduardo Tanus-Santos, Carlos R Tirapelli, Michele M Castro
BACKGROUND AND AIMS: Increased activity of matrix metalloproteinase (MMP)-2 is observed in aortas of different models of hypertension, and its activation is directly mediated by oxidative stress. As quercetin is an important flavonoid with significant antioxidant effects, the hypothesis here is that quercetin will reduce increased MMP-2 activity by decreasing oxidative stress in aortas of hypertensive rats and then ameliorate hypertension-induced vascular remodeling. METHODS: Male two-kidney one-clip (2K1C) hypertensive Wistar rats and controls were treated with quercetin (10 mg/kg/day) or its vehicle for three weeks by gavage...
January 31, 2018: Atherosclerosis
An-Qi Zeng, Yan Yu, Yu-Qin Yao, Fang-Fang Yang, Mengya Liao, Lin-Jiang Song, Ya-Li Li, Yang Yu, Yu-Jue Li, Yuan-Le Deng, Shu-Ping Yang, Chen-Juan Zeng, Ping Liu, Yong-Mei Xie, Jin-Liang Yang, Yi-Wen Zhang, Ting-Hong Ye, Yu-Quan Wei
Breast cancer is the most common female cancer with considerable metastatic potential, explaining the need for new candidates that inhibit tumor metastasis. In our study, betulinic acid (BA), a kind of pentacyclic triterpenoid compound derived from birch trees, was evaluated for its anti-metastasis activity in vitro and in vivo. BA decreased the viability of three breast cancer cell lines and markedly impaired cell migration and invasion. In addition, BA could inhibit the activation of stat3 and FAK which resulted in a reduction of matrix metalloproteinases (MMPs), and increase of the MMPs inhibitor (TIMP-2) expression...
January 9, 2018: Oncotarget
Juan David Puerta-Arias, Paula Andrea Pino-Tamayo, Julián Camilo Arango, Lina María Salazar-Peláez, Angel González
Itraconazole (ITC) is the drug of choice for treating paracoccidioidomycosis (PCM); nonetheless, patients with the chronic form of this mycosis develop fibrosis, a residual pulmonary abnormality, even after treatment. Recently, we observed that the depletion of neutrophils with a specific monoclonal antibody (mAb-anti-Ly6G) during the chronic stages of PCM was associated with a decrease in the fungal burden, the inflammatory response and a reduction of fibrosis. Herein, we aimed to evaluate the effect of ITC in combination with the mAb-anti-Ly6G in an experimental model of pulmonary PCM...
October 9, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
Enrique Gallego-Colon, Agnieszka Klych-Ratuszny, Agnieszka Kosowska, Wojciech Garczorz, Mohammad Reza F Aghdam, Michal Wozniak, Tomasz Francuz
BACKGROUND: Incretin analogue drugs, a FDA-approved treatment in diabetes, has been tested for its therapeutic properties as modulators of atherosclerosis. We investigated the effects of incretin drugs on the modulation of gene expression and protein levels of matrix metalloproteinases (MMPs) as well as their inhibitors - tissue inhibitors of metalloproteinases (TIMPs) in coronary artery smooth muscle cells (hCASMC) in the context of atherosclerotic plaque formation and inflammation. METHODS: TNFα-stimulated hCASMC were treated with Glucagon-like Peptide 1 (GLP-1) (10 nM and 100 nM) and Exendin-4 (1 nM and 10 nM)...
October 4, 2017: Pharmacological Reports: PR
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