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https://www.readbyqxmd.com/read/28719899/the-relationship-between-mmp-2-1306c-t-and-mmp-9-1562c-t-polymorphisms-and-the-risk-and-prognosis-of-t-cell-acute-lymphoblastic-leukemia-in-a-chinese-population-a-case-control-study
#1
Cong-Meng Lin, Yan-Ling Zeng, Min Xiao, Xu-Qiao Mei, Lv-Ying Shen, Meng-Xian Guo, Zhe-Yao Lin, Qi-Fa Liu, Tin Yang
BACKGROUND: T-cell acute lymphoblastic leukemia (T-ALL) is a malignant hematological disease and is often accompanied by a variety of genetic abnormalities. Hence, our study aims to investigate the relationship between MMP-2 -1306C>T and MMP-9 -1562C>T polymorphisms and the risk and prognosis of T-ALL. METHODS: From April 2009 to February 2011, a total of 376 T-ALL patients were chosen as the case group. Meanwhile, 352 healthy people who passed routine health examinations were selected as the control group...
July 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28719670/suppressive-effect-of-amp-activated-protein-kinase-on-the-epithelial-mesenchymal-transition-in-retinal-pigment-epithelial-cells
#2
Ryo Matoba, Yuki Morizane, Yusuke Shiode, Masayuki Hirano, Shinichiro Doi, Shinji Toshima, Ryoichi Araki, Mika Hosogi, Tomoko Yonezawa, Fumio Shiraga
The epithelial-mesenchymal transition (EMT) in retinal pigment epithelial (RPE) cells plays a central role in the development of proliferative vitreoretinopathy (PVR). The purpose of this study was to investigate the effect of AMP-activated protein kinase (AMPK), a key regulator of energy homeostasis, on the EMT in RPE cells. In this study, EMT-associated formation of cellular aggregates was induced by co-stimulation of cultured ARPE-19 cells with tumor necrosis factor (TNF)-α (10 ng/ml) and transforming growth factor (TGF)-β2 (5 ng/ml)...
2017: PloS One
https://www.readbyqxmd.com/read/28717842/selective-matrix-metalloproteinase-inhibition-increases-breaking-strength-and-reduces-anastomotic-leakage-in-experimentally-obstructed-colon
#3
Peter-Martin Krarup, Mikkel Eld, Lars Nannestad Jorgensen, Mark Berner Hansen, Magnus S Ågren
PURPOSE: Colonic obstruction causes loss of collagen and impairment of anastomotic integrity by matrix metalloproteinases (MMPs). Unexpectedly, pharmacological MMP inhibition increased anastomotic leakage (AL) in obstructed colon possibly due to the non-selective nature of these compounds and the experimental model applied. We therefore studied the effects of selective MMP inhibition on the healing of anastomoses in colon obstructed by a novel laparoscopic technique. METHODS: Left colon was obstructed in 38 male Sprague-Dawley rats (226-284 g)...
July 17, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28716558/emmprin-overexpression-in-svz-neural-progenitor-cells-increases-their-migration-towards-ischemic-cortex
#4
Michiko Kanemitsu, Oleg Tsupykov, Gaël Potter, Michael Boitard, Patrick Salmon, Eloisa Zgraggen, Eduardo Gascon, Galina Skibo, Alexandre G Dayer, Jozsef Z Kiss
Stimulation of endogenous neurogenesis and recruitment of neural progenitors from the subventricular zone (SVZ) neurogenic site may represent a useful strategy to improve regeneration in the ischemic cortex. Here, we tested whether transgenic overexpression of extracellular matrix metalloproteinase inducer (EMMPRIN), the regulator of matrix metalloproteinases (MMPs) expression, in endogenous neural progenitor cells (NPCs) in the subventricular zone (SVZ) could increase migration towards ischemic injury. For this purpose, we applied a lentivector-mediated gene transfer system...
July 14, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28715870/neuroprotective-effect-of-trans-n-caffeoyltyramine-from-lycium-chinense-against-h2o2-induced-cytotoxicity-in-pc12-cells-by-attenuating-oxidative-stress
#5
Opeyemi J Olatunji, Hongxia Chen, Yifeng Zhou
Natural products play a critical role in the promotion of good health as regards the prevention and management of oxidative stress related and neurodegenerative disorders. Oxidative stress has been implicated in several apoptotic pathways associated with cell damages in neuronal disorders. The aim of this study was to investigate the antioxidant effect of trans-N-caffeoyltyramine (TNC) isolated from Cortex lycii against hydrogen peroxide (H2O2) induced cell damages in PC12 cells as well as its mechanism of action...
July 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28715807/amniotic-fluid-angiogenic-and-inflammatory-factor-profiling-in-foetal-down-syndrome
#6
Monika Zbucka-Kretowska, Karol Charkiewicz, Jan Czerniecki, Joanna Goscik, Slawomir Wolczynski, Piotr Laudanski
OBJECTIVES: Angiogenic factors are proteins that can potentially be related to certain foetal chromosomal abnormalities. The goal of this study was to determine the concentrations of 60 angiogenic factors in the amniotic fluid of women carrying foetuses with Down syndrome (DS). METHODS: After analysis of the karyotyping results, for the purpose of this study, we chose 12 women with foetal DS. For the control group, we selected 12 healthy patients with uncomplicated pregnancies (15-18 weeks of gestation) who delivered healthy newborns at term...
July 15, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28715683/il-17rb-enhances-thyroid-cancer-cell-invasion-and-metastasis-via-erk1-2-pathway-mediated-mmp-9-expression
#7
Lei Ren, Yapei Xu, Cong Liu, Shoujun Wang, Guijun Qin
IL-17RB, a member of the IL-17 receptor family that can be activated by IL-17B, has been proved to be involved in inflammatory diseases and cancers. However, the function of IL-17RB in thyroid cancer is still unknown. In this study, IL-17RB expression in thyroid cancer cell lines and tissues was examined by real-time PCR and western blot. The effects of IL-17RB on cell invasion and migration were determined by in vitro invasion and migration assays, while the effects of IL-17RB on cell metastasis were analyzed by in vivo experiments...
July 14, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28715585/retinoic-acid-engineered-amniotic-membrane-used-as-graft-or-homogenate-positive-effects-on-corneal-alkali-burns
#8
Romain Joubert, Estelle Daniel, Nicolas Bonnin, Aurélie Comptour, Christelle Gross, Corinne Belville, Frédéric Chiambaretta, Loïc Blanchon, Vincent Sapin
Purpose: Alkali burns are the most common, severe chemical ocular injuries, their functional prognosis depending on corneal wound healing efficiency. The purpose of our study was to compare the benefits of amniotic membrane (AM) grafts and homogenates for wound healing in the presence or absence of previous all-trans retinoic acid (atRA) treatment. Methods: Fifty male CD1 mice with reproducible corneal chemical burn were divided into five groups, as follows: group 1 was treated with saline solution; groups 2 and 3 received untreated AM grafts or grafts treated with atRA, respectively; and groups 4 and 5 received untreated AM homogenates or homogenates treated with atRA, respectively...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28715234/is-cardiovascular-disease-in-patients-with-diabetes-associated-with-serum-levels-of-mmp-2-lox-and-the-elastin-degradation-products-elm-and-elm-2
#9
Simone Andrea Rørdam Preil, Anne-Sofie Faarvang Thorsen, Anne Lindegaard Christiansen, Mikael Kjær Poulsen, Morten Asser Karsdal, Diana Julie Leeming, Lars Melholt Rasmussen
BACKGROUND: Diabetes mellitus type 2 (T2DM) is a significant risk factor for the development of cardiovascular diseases (CVDs). In a previous microarray study of internal mammary arteries from patients with and without T2DM, we observed several elastin-related genes with altered mRNA-expression in diabetic patients, namely matrix metalloproteinase 2 (MMP-2), lysyl oxidase (LOX) and elastin itself. In this study we investigate whether the serum concentrations of elastin-related proteins correlate to signs of CVD in patients with T2DM...
July 17, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28714024/magnesium-isoglycyrrhizinate-protects-against-renal%C3%A2-ischemia%C3%A2-reperfusion-injury-in-a-rat-model-via-anti%C3%A2-inflammation-anti%C3%A2-oxidation-and-anti%C3%A2-apoptosis
#10
Zhigang Zhao, Zhongzhi Tang, Wenkai Zhang, Jie Liu, Bo Li
The present study aimed to investigate whether magnesium isoglycyrrhizinate protects against renal ischemia‑reperfusion injury (RIRI), and to verify the underlying mechanisms. An RIRI rat model was induced by removing the right kidney, and exposing and clamping the left kidney. RIRI model rats were administered 30 mg/kg magnesium isoglycyrrhizinate for 3 days. Blood urea nitrogen (BUN) and serum creatinine levels in the blood of RIRI model rat were examined, compared with sham‑operated controls. Magnesium isoglycyrrhizinate suppressed the activities of tumor necrosis factor‑α, interleukin (IL)‑1β, IL‑6, superoxide dismutase, glutathione peroxidase, inducible nitric oxide synthase (iNOS) and caspase‑3 in RIRI model rats...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28714016/elastin%C3%A2-derived-peptides-are-involved-in-the-processes-of-human-temporomandibular-disorder-by-inducing-inflammatory-responses-in-synovial-cells
#11
Kazuhiko Kobayashi, Rei Jokaji, Mayuko Miyazawa-Hira, Shigeyuki Takatsuka, Akira Tanaka, Kazuhiro Ooi, Hiroyuki Nakamura, Shuichi Kawashiri
Temporomandibular joint dysfunction (TMD) is a collection of clinical symptoms that involve masticatory muscles and the temporomandibular joint (TMJ). Common symptoms include limited jaw motion and joint sound/pain, along with TMJ disc displacement. TMD is frequently associated with synovitis, a chronic inflammation of the synovium. Fibroblast‑like synovial cells have been identified to produce several inflammatory mediators and may have an important role in the progression of TMJ inflammation. Degradation of the extracellular matrix molecule elastin may lead to the release of bioactive peptides...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28714015/mir-142-inhibits-the-migration-and-invasion-of-glioma-by-targeting-rac1
#12
Wenyi Qin, Xiaofeng Rong, Jiangchuan Dong, Chao Yu, Juan Yang
Increasing evidence has shown that aberrant microRNAs (miRNAs) are implicated in tumorigenesis and tumor progression by regulating oncogenes or tumor suppressors. Dysregulation of miR-142 has been reported in multiple tumors. However, its clinical roles and underlying mechanism in glioma remain to be elucidated. In the present study, we found that the expression of miR-142 was significantly downregulated in both glioma tissues and cell lines by qRT-PCR. Clinical analysis revealed that decreased miR-142 was markedly associated with advanced World Health Organization (WHO) grade...
July 13, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28714004/expression-and-function-of-transforming-growth-factor%C3%A2-%C3%AE-%C3%A2-activated-protein-kinase-1-in-gastric-cancer
#13
Yue Yang, Yudong Qiu, Mubai Tang, Zhaoshu Wu, Weidong Hu, Chaobo Chen
The present study aimed to investigate the expression and role of transforming growth factor (TGF) ‑β‑activated protein kinase 1 (TAK1) in human gastric cancer. Immunohistochemistry was performed to investigate the expression of TAK1 in surgical specimens of human gastric cancer tissue and adjacent normal tissue. The association between TAK1 and clinicopathologic factors was analyzed and the association between TAK1 expression and the overall survival rates was evaluated using Kaplan‑Meier curves. In addition, the effect of the TAK1 selective inhibitor 5Z‑7‑oxozeaenol (OZ) on the biological characteristics of MGC803 human gastric cancer cells in vitro were investigated...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713961/adipose-differentiation%C3%A2-related-protein-knockdown-inhibits-vascular-smooth-muscle-cell-proliferation-and-migration-and-attenuates-neointima-formation
#14
Haomin Zhao, Tao Han, Xin Hong, Dajun Sun
Vascular smooth muscle cells (VSMCs) have an important role in atherosclerosis development. Evidence has demonstrated that adipose differentiation‑related protein (ADRP) is associated with foam cell formation and atherosclerosis progression. However, to the best of our knowledge, no previous studies have investigated the role of ADRP knockdown in platelet‑derived growth factor (PDGF)‑stimulated proliferation and migration of VSMCs in vitro. Furthermore, the effect of ADRP knockdown on neointima formation in vivo remains unclear...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713942/ginsenoside-rc-protects-against-uvb%C3%A2-induced-photooxidative-damage-in-epidermal-keratinocytes
#15
Yuri Oh, Hye-Won Lim, Kwang Hark Park, Yu-Hua Huang, Ji-Young Yoon, Kyunghoon Kim, Chang-Jin Lim
Ginsenoside Rc (Rc) is a major ginsenoside isolated from Panax ginseng, and has exhibited pharmacological effects on skin cells. The present study aimed to investigate the putative skin‑protective properties of Rc, including its anti‑photoaging and barrier function‑protective effects, in human HaCaT keratinocytes exposed to UVB radiation. The protective properties of Rc were evaluated through the assessment of keratinocyte viability, reactive oxygen species (ROS) production, total glutathione (GSH) and superoxide dismutase (SOD) activity, caspase‑14, matrix metalloproteinase (MMP)‑2 and ‑9 activity, and MMP‑2, MMP‑9 and filament aggregating protein (filaggrin) expression following UVB irradiation...
July 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713936/epigallocatechin-gallate-attenuates-overload%C3%A2-induced-cardiac-ecm-remodeling-via-restoring-t-cell-homeostasis
#16
Yongsheng Han, Qingtong Wang, Xizhen Fan, Jun Chu, Junfu Peng, Yousheng Zhu, Yan Li, Xiaojing Li, Lei Shen, James Asenso, Shanfeng Li
It has previously been demonstrated that Epigallocatechin gallate (EGCG) has regulatory effects on cellular immunity. The present study explored whether EGCG inhibits the overload‑induced cardiac extracellular matrix (ECM) remodeling through targeting the balance of T cell subpopulations. Sprague‑Dawley rats were subjected to either transverse aortic constriction (TAC) or sham operation. TAC rats were treated with EGCG or valsartan (Val) for 6 weeks. The administration of EGCG or Val ameliorated the overproduction of cardiac collagen, inhibited matrix metalloproteinase (MMP) activity, decreased the expression of tissue inhibitor of MMP‑2, atrial natriuretic peptide and brain natriuretic peptide...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713917/stim1-silencing-inhibits-the-migration-and-invasion-of-a549-cells
#17
Yadong Wang, Haiyu Wang, Teng Pan, Li Li, Jiangmin Li, Haiyan Yang
The present study aimed to explore the effects of stromal interaction molecule 1 (STIM1) knockdown on the migration, invasion and metastasis of A549 cells in vitro and in vivo. Western blotting and immunohistochemistry were used to detect protein expression levels. Wound healing and Transwell invasion assays were used to assess the migratory and invasive abilities of A549 cells transfected with STIM1‑specific short hairpin (sh)RNA (shSTIM1). In addition, a tail vein metastatic assay was performed. The results demonstrated that the frequency of STIM1 high‑expression was significantly increased in metastatic lung cancer tissues (72...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713892/trichostatin%C3%A2-a-induces-bladder-cancer-cell-death-via-intrinsic-apoptosis-at-the-early%C3%A2-phase-and-sp1%C3%A2-survivin-downregulation-at-the-late%C3%A2-phase-of-treatment
#18
Shou-Chieh Wang, Shou-Tsung Wang, Hung-Te Liu, Xiang-Yu Wang, She-Ching Wu, Lei-Chin Chen, Yi-Wen Liu
Histone deacetylase (HDAC) inhibitors have been widely shown to result in cancer cell death. The present study investigated the mechanisms underlying the antitumor effects of the phytochemical trichostatin A (TSA), a classic pan-HDAC inhibitor, in 5,637 urinary bladder cancer cells. It was found that TSA caused cell cycle arrest at the G2/M and G1 phase accompanied by reduced expression of cyclin D1 and upregulated induction of p21. In addition, TSA induced morphological changes, reduced cell viability and apoptotic cell death in 5,637 cells through caspase-3 activation followed by PARP cleavage...
July 6, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28713860/icam-1-targeted-nanocarriers-attenuate-endothelial-release-of-soluble-icam-1-an-inflammatory-regulator
#19
Rachel L Manthe, Silvia Muro
Targeting of drug nanocarriers (NCs) to intercellular adhesion molecule-1 (ICAM-1), an endothelial-surface protein overexpressed in many pathologies, has shown promise for therapeutic delivery into and across this lining. Yet, due to the role of ICAM-1 in inflammation, the effects of targeting this receptor need investigation. Since ICAM-1 binding by natural ligands (leukocyte integrins) results in release of the "soluble ICAM-1" ectodomain (sICAM-1), an inflammatory regulator, we investigated the influence of targeting ICAM-1 with NCs on this process...
March 2017: Bioengineering & Translational Medicine
https://www.readbyqxmd.com/read/28712835/biological-impact-of-advanced-glycation-endproducts-on-estrogen-receptor-positive-mcf-7-breast-cancer-cells
#20
Sabine Matou-Nasri, Hana Sharaf, Qiuyu Wang, Nasser Almobadel, Zaki Rabhan, Hamad Al-Eidi, Wesam Bin Yahya, Thadeo Trivilegio, Rizwan Ali, Nasser Al-Shanti, Nessar Ahmed
Diabetes mellitus potentiates the risk of breast cancer. We have previously described the pro-tumorigenic effects of advanced glycation endproducts (AGEs) on estrogen receptor (ER)-negative MDA-MB-231 breast cancer cell line mediated through the receptor for AGEs (RAGE). However, a predominant association between women with ER-positive breast cancer and type 2 diabetes mellitus has been reported. Therefore, we have investigated the biological impacts of AGEs on ER-positive human breast cancer cell line MCF-7 using in vitro cell-based assays including cell count, migration, and invasion assays...
July 13, 2017: Biochimica et Biophysica Acta
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