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https://www.readbyqxmd.com/read/28927111/luteolin-reduces-migration-of-human-glioblastoma-cell-lines-via-inhibition-of-the-p-igf-1r-pi3k-akt-mtor-signaling-pathway
#1
Qiang Wang, Handong Wang, Yue Jia, Hui Ding, Li Zhang, Hao Pan
Luteolin (3',4',5,7-tetrahydroxyflavone) is a common dietary flavonoid, which has been demonstrated to exert anticancer effects in multiple cancer models. However, the detailed mechanisms underlying the inhibitory effect of luteolin on glioblastoma cell metastasis remain poorly understood. The present study assessed the effects of luteolin in the U251MG and U87MG human glioblastoma cell lines. Luteolin treatment significantly inhibited glioblastoma cell migration, and this effect was associated with downregulated matrix metalloproteinase (MMP)-2, MMP-9 and upregulated tissue inhibitor of metalloproteinase (TIMP)-1 and TIMP-2...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28925394/tissue-inhibitor-of-metalloproteinase-1-promotes-cell-proliferation-through-yap-taz-activation-in-cancer
#2
T Ando, D Charindra, M Shrestha, H Umehara, I Ogawa, M Miyauchi, T Takata
Tissue inhibitor of metalloproteinase-1 (TIMP-1), a member of the TIMP family (TIMP-1 to 4), is highly expressed in various types of cancer and forms a complex with its receptor CD63 and Integrin β1. However, the precise oncogenic mechanism of TIMP-1 remains unclear. Yes-associated protein (YAP) and transcriptional co-activator with PDZ binding motif (TAZ) are transcription co-activators enhancing the transcription of specific genes related to cell proliferation. But the mechanism of aberrant YAP/TAZ activation in cancer is not fully understood...
September 18, 2017: Oncogene
https://www.readbyqxmd.com/read/28921394/combination-therapy-with-pirfenidone-plus-prednisolone-ameliorates-paraquat-induced-pulmonary-fibrosis
#3
Rokhsana Rasooli, Fatemeh Pourgholamhosein, Younes Kamali, Fatemeh Nabipour, Ali Mandegary
Pirfenidone is known to slow the decline in vital capacity and increase survival in idiopathic pulmonary fibrosis (IPF). Besides, administration of glucocorticoids, e.g., prednisolone has been the conventional strategy to the treatment of patients with this disease, although their efficacy is under debate. Since multiple coactivated pathways are involved in the pathogenesis of IPF, combination therapy is a foundation strategy to cover many more synergetic mechanisms and increase response. The aim of the present study was to compare the therapeutic efficacy of prednisolone plus pirfenidone with pirfenidone alone in PQ-induced lung fibrosis...
September 18, 2017: Inflammation
https://www.readbyqxmd.com/read/28919284/mmp-8-and-timp-1-are-associated-to-periodontal-inflammation-in-patients-with-rheumatoid-arthritis-under-methotrexate-immunosuppression-first-results-of-a-cross-sectional-study
#4
G Schmalz, I Davarpanah, J Jäger, R F Mausberg, B Krohn-Grimberghe, J Schmidt, R Haak, U Sack, Dirk Ziebolz
BACKGROUND: Aim of this cross-sectional study was the investigation of associations between different rheumatoid arthritis (RA)-related blood parameters and periodontal condition as well as selected periodontal pathogenic bacteria in RA patients under methotrexate (MTX) immunosuppression. METHODS: Periodontal probing depth (PPD), bleeding on probing (BOP) and clinical attachment loss (CAL) were assessed. Periodontal condition was classified into: no/mild and moderate or severe periodontitis (P)...
September 4, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28918236/gene-expression-profiles-of-cell-adhesion-molecules-matrix-metalloproteinases-and-their-tissue-inhibitors-in-canine-oral-tumors
#5
Sirinun Pisamai, Anudep Rungsipipat, Chanin Kalpravidh, Gunnaporn Suriyaphol
Perturbation of cell adhesion can be essential for tumor cell invasion and metastasis, but the current knowledge on the gene expression of molecules that mediate cell adhesion in canine oral tumors is limited. The present study aimed to investigate changes in the gene expression of cell adhesion molecules (E-cadherin or CDH1, syndecan 1 or SDC1, NECTIN2 and NECTIN4), matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs), in canine oral tumors, including benign tumors, oral melanoma (OM) and non-tonsillar oral squamous cell carcinoma (OSCC), by quantitative real-time reverse transcription PCR...
September 8, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28917186/compounds-isolated-from-eriobotrya-deflexa-leaves-protect-against-ultraviolet-radiation-b-induced-photoaging-in-human-fibroblasts
#6
Chung-Yu Huang, Yi-Tzu Lin, Hsiang-Chun Kuo, Wen-Fei Chiou, Mei-Hsien Lee
Ultraviolet (UV) irradiation leads to skin photoaging because of the upregulation of matrix metalloproteinase (MMP)-1 and downregulation of type I collagen and tissue inhibitor of metalloproteinase (TIMP)-1. Eriobotrya deflexa (Hemsl.) Nakai (Rosaceae) is a flowering plant endemic to Taiwan, and its leaves have been used as an expectorant and in antitussive folk remedy. Our previous studies have demonstrated that an E. deflexa leaf extract functions as a free radical scavenger. The current evaluated the antiphotoaging effect of partitioned fractions and specific compounds from the leaves of E...
September 4, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28916996/successive-release-of-tissue-inhibitors-of-metalloproteinase-1-through-graphene-oxide-based-delivery-system-can-promote-skin-regeneration
#7
Cheng Zhong, Dike Shi, Yixiong Zheng, Peter J Nelson, Qi Bao
The purpose of this study was to testify the hypothesis that graphene oxide (GO) could act as an appropriate vehicle for the release of tissue inhibitors of metalloproteinase-1 (TIMP-1) protein in the context of skin repair. GO characteristics were observed by scanning electron microscopy, atomic force microscopy, and thermal gravimetric analysis. After TIMP-1 absorbing GO, the release profiles of various concentrations of TIMP-1 from GO were compared. GO biocompatibility with fibroblast viability was assessed by measuring cell cycle and apoptosis...
September 15, 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28915589/casticin-attenuates-liver-fibrosis-and-hepatic-stellate-cell-activation-by-blocking-tgf-%C3%AE-smad-signaling-pathway
#8
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...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28914439/dampness-heat-accelerates-dmba-induced-mammary-tumors-in-rats
#9
Wei Dong, Xi-Lan Tang, Guang-Bin Shang, Guo-Liang Xu, Wei-Feng Zhu, Hong-Ning Liu
OBJECTIVE: To investigate the impact of dampness-heat (DH) on the development of mammary tumors in 7,12-dimethylbenz(a)anthracene (DMBA)-induced rats. METHODS: Forty rats were randomly divided into 3 groups in a randomized block design, including the control group (n=13), DMBA group (n=14), and DMBA plus DH group (n=13). Rats in the DMBA group and DMBA plus DH group were intragastrically administrated with DMBA (100 mg/kg) for twice, once per week, while rats in the control group were treated with equivalent volumes of sesame oil...
September 15, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28906407/gelatinases-and-physical-exercise-a-systematic-review-of-evidence-from-human-studies
#10
Rosalia Lo Presti, Eugenia Hopps, Gregorio Caimi
BACKGROUND: Matrix metalloproteinases (MMPs), particularly gelatinase A (MMP-2) and gelatinase B (MMP-9), as well as their tissue inhibitors (TIMP-1 and TIMP-2), are involved in the development of skeletal muscle tissue, in the repair process after muscle injury and in the adaptive modifications induced by physical exercise in skeletal muscle. This paper aims at reviewing results from human studies that investigated the role of gelatinases and their inhibitors in skeletal muscle response to acute physical exercise or training...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28903945/complement-c5a-receptors-c5l2-and-c5ar-in-renal-fibrosis
#11
Ina V Martin, Annika Bohner, Peter Boor, Erdenechimeg Shagdarsuren, Ute Raffetseder, Frank Lammert, Jürgen Floege, Tammo Ostendorf, Susanne N Weber
Complement factor C5a has two known receptors, C5aR mediating pro-inflammatory effects and C5L2, a potential C5a scavenger. We previously identified C5a/C5aR signaling as a potent profibrotic pathway in the kidney. Here we tested for the first time the role of C5L2 in renal fibrosis. In unilateral ureteral obstruction (UUO)-induced kidney fibrosis, the expression of C5aR and C5L2 increased similarly and gradually as fibrosis progressed and was particularly prominent in injured dilated tubules. Genetic deficiency of either C5aR or C5L2 significantly reduced UUO-induced tubular injury...
September 13, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28903341/apobec3g-acts-as-a-therapeutic-target-in-mesenchymal-gliomas-by-sensitizing-cells-to-radiation-induced-cell-death
#12
Yu Wang, Shaofang Wu, Siyuan Zheng, Shuzhen Wang, Arjun Wali, Ravesanker Ezhilarasan, Erik P Sulman, Dimpy Koul, W K Alfred Yung
Genomic, transcriptional, and proteomic analyses of brain tumors reveal that subtypes differ in their pathway activity, progression, and response to therapy. We performed an expression profiling of Glioma Initiating Cells (GICs) and comparative analysis between different groups of GICs indicates major variations in gene expression. Hierarchical clustering analysis revealed groups of GICs reflecting their heterogeneity, and among some of the genes as major regulators of mesenchymal phenotype, we identified ABOBEC3G as one of the most discriminating genes in mesenchymal group...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28902861/epigenetic-regulation-of-metalloproteinases-and-their-inhibitors-in-rotator-cuff-tears
#13
Mariana Ferreira Leal, Leonardo Caires Dos Santos, Adrielle Martins de Oliveira, Paulo Santoro Belangero, Eduardo Antônio Figueiredo, Carina Cohen, Felipe de Seixas Alves, Wânia Hiromi Yanaguizawa, Carlos Vicente Andreoli, Alberto de Castro Pochini, Benno Ejnisman, Marília Cardoso Smith, Maria Teresa de Seixas Alves, Moises Cohen
Rotator cuff tear is a common orthopedic condition. Metalloproteinases (MMP) and their inhibitors (TIMP) seem to play a role in the development of joint injuries and in the failure of tissue healing. However, the mechanisms of regulation of gene expression in tendons are still unknown. Epigenetic mechanisms, such as DNA methylation and microRNAs regulation, are involved in the dynamic control of gene expression. Here, the mRNA expression and DNA methylation status of MMPs (MMP1, MMP2, MMP3, MMP9, MMP13, and MMP14) and TIMPs (TIMP1-3) and the expression of miR-29 family members in ruptured supraspinatus tendons were compared with non-injured tendons of individuals without this lesion...
2017: PloS One
https://www.readbyqxmd.com/read/28902427/nlrp3-inflammasome-driven-liver-injury-and-fibrosis-roles-of-il-17-and-tnf
#14
Alexander Wree, Matthew D McGeough, Maria Eugenia Inzaugarat, Akiko Eguchi, Susanne Schuster, Casey D Johnson, Carla A Peña, Lukas J Geisler, Bettina G Papouchado, Hal M Hoffman, Ariel E Feldstein
The NLRP3 inflammasome, a caspase-1 activation platform plays a key role in the modulation of liver inflammation and fibrosis. Here, we tested the hypothesis that interleukin 17 (IL-17) and tumor necrosis factor (TNF) are key cytokines involved in amplifying and perpetuating the liver damage and fibrosis resulting from NLRP3 activation. To address this hypothesis gain of function Nlrp3(A350V) knock-in mice were bred onto il17a and Tnf knockout backgrounds allowing for constitutive Nlrp3 activation in myeloid derived cells in mice deficient in IL-17 or TNF...
September 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28901395/role-of-matrix-metalloproteinase%C3%A2-7-and-apoptosis%C3%A2-associated-gene-expression-levels-in-the-pathogenesis-of-atrial-fibrosis-in-a-beagle-dog-model
#15
Min Jia, Zai-Bo Li, Lin Li, Hong-Tao Chu, Zhuang-Zhuang Li
The aim of the present study was to investigate the potential role of matrix metalloproteinase‑7 (MMP‑7) and apoptosis‑associated genes [TIMP metallopeptidase inhibitor 2(TIMP‑2), BCL2 associated X, apoptosis regulator (BAX) and BCL2, apoptosis regulator (BCL‑2)] in the pathogenesis of atrial fibrillation (AF) in a Beagle dog model. A total of 20 adult male Beagle dogs were randomly assigned into the AF group (n=10; Beagle dogs were treated by Burst stimulation to induce AF) and the control group (n=10; healthy Beagle dogs)...
August 31, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28898426/differences-between-inflammatory-and-catabolic-mediators-of-peri-implantitis-and-periodontitis-lesions-following-initial-mechanical-therapy-an-exploratory-study
#16
M Ghighi, A Llorens, B Baroukh, C Chaussain, P Bouchard, M Gosset
BACKGROUND AND OBJECTIVE: The aim of this study was to analyze the differences in inflammatory and catabolic mediators expressed in peri-implantitis compared to periodontitis lesions after non-surgical therapy. Peri-implantitis is associated with a faster rate of bone loss when compared with periodontitis, and peri-implant non-surgical therapy is ineffective to cure peri-implantitis. This may be due to persistent inflammation in peri-implantitis tissues after initial mechanical treatment...
September 12, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28894114/cinaciguat-ameliorates-glomerular-damage-by-reducing-erk1-2-activity-and-tgf-%C3%A3-expression-in-type-1-diabetic-rats
#17
Szabina Czirok, Lilla Fang, Tamás Radovits, Gábor Szabó, Gábor Szénási, László Rosivall, Béla Merkely, Gábor Kökény
Decreased soluble guanylate cyclase activity and cGMP levels in diabetic kidneys were shown to influence the progression of nephropathy. The regulatory effects of soluble guanylate cyclase activators on renal signaling pathways are still unknown, we therefore investigated the renal molecular effects of the soluble guanylate cyclase activator cinaciguat in type-1 diabetic (T1DM) rats. Male adult Sprague-Dawley rats were divided into 2 groups after induction of T1DM with 60 mg/kg streptozotocin: DM, untreated (DM, n = 8) and 2) DM + cinaciguat (10 mg/kg per os daily, DM-Cin, n = 8)...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28893577/metalloproteinases-in-atherosclerosis
#18
Jason L Johnson
Atherosclerosis underlies most cardiovascular diseases, and is accepted as a primary cause of mortality worldwide. Proteases have been implicated in the development and progression of atherosclerosis, due to their ability to provoke focal destruction of the vascular extracellular matrix. Members of the metalloproteinase family, especially matrix metalloproteinases (MMPs), and their endogenous tissue inhibitors (TIMPs) have been suggested to perform complex dual roles during late-stage progression and rupture of atherosclerotic plaques...
September 9, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28887922/gramine-inhibits-angiogenesis-and-induces-apoptosis-via-modulation-of-tgf-%C3%AE-signalling-in-7-12-dimethylbenz-a-anthracene-dmba-induced-hamster-buccal-pouch-carcinoma
#19
Arunkumar Ramu, Suresh Kathiresan, Bakrudeen Ali Ahmed
BACKGROUND: Transforming growth factor-β (TGF-β) and its receptors are considered as a novel target in cancer chemotherapy. Gramine, an indole alkaloid, possesses various pharmacological properties including antiproliferative and anticancer. However, the anti-angiogenic property remains unexplored. PURPOSE: The present study was designed to evaluate the anti-angiogenic and apoptosis induction properties of gramine through inhibiting TGF-β on DMBA induced oral squamous cell carcinoma (OSCC) in the hamster buccal pouch (HBP)...
September 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28887917/hepatoprotective-effects-of-yulangsan-flavone-against-carbon-tetrachloride-ccl4-induced-hepatic-fibrosis-in-rats
#20
Youjia Guo, Xingmei Liang, Mingyu Meng, Hongxia Chen, Xiaojie Wei, Mingyan Li, Juman Li, Renbin Huang, Jinbin Wei
BACKGROUND: Yulangsan flavone (YLSF) was extracted from the root of Millettia pulchra Kurz var-laxior (Dunn) Z. Wei, which has been widely used for liver disease treatment in the Guangxi province of China. HYPOTHESIS/PURPOSE: The study was conducted to demonstrate the hepatoprotective effects of YLSF against CCl4-induced hepatic fibrosis in rats, meanwhile revealing the potential mechanism. STUDY DESIGN: Sprague-Dawley (SD) rats of both sexes were randomly divided into two groups: hepatic fibrosis group and normal control (NC) group...
September 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
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