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https://www.readbyqxmd.com/read/29236328/mirnalet-7a-mediates-prostate-cancer-pc-3-cell-invasion-migration-by-inducing-epithelial-mesenchymal-transition-through-ccr7-mapk-pathway
#1
Tang Guanlin, Du Ruoyang, Tang Zhaobing, Kuang Youlin
Prostate cancer is one of the most common malignancies in older men. Recent evidence has demonstrated microRNA (miRNA) Let-7a expression decreased in prostate cancer, while the expression of C-C chemokine receptor type 7 (CCR7) increased. In this study, we investigated whether CCR7 overexpression was associated with a decrease in the expression of miRNA let-7a in invasion and metastasis of prostate cancer cell. Methods Synthetic let-7a mimics and let-7a inhibitors were transfected into prostate cancer PC-3 cells repectively...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236323/effects-of-microrna-330-on-vulnerable-atherosclerotic-plaques-formation-and-vascular-endothelial-cell-proliferation-through-the-wnt-signaling-pathway-in-acute-coronary-syndrome
#2
Jing Ren, Rui Ma, Zhu-Bo Zhang, Yang Li, Ping Lei, Jian-Long Men
This study is designed to investigate the effects of microRNA (miR)-330 on atherosclerotic plaques formation and vascular endothelial (VE) cell proliferation by targeting MAPK8 through the WNT signaling pathway in rats with acute coronary syndrome (ACS). Expression of hemodynamic variables were tested. Rats were allocated into control, blank, negative control (NC), miR-330 mimic, miR-330 inhibitor, DDK-1, miR-330 inhibitor + DDK-1 groups. ELISA was used to evaluate the expression of TC, TG, LDL-C, hs-CRP, IL-6, IL-10, TNF-α, and SAA...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236316/2-5-hexanedione-induces-bone-marrow-mesenchymal-stem-cell-apoptosis-via-inhibition-of-akt-bad-signal-pathway
#3
Jinsong Sun, Xiaoxia Shi, Shuangyue Li, Fengyuan Piao
2,5-Hexanedione (HD) is an important bioactive metabolite of n-hexane and mediates the neurotoxicity of parent compound. Studies show that HD induces apoptotic death of neural progenitor cells. However, its underlying mechanism remains unknown. Mesenchymal stem cells (MSCs) are multipotential stem cells with the ability to differentiate into various cell types and have been used as cell model for studying the toxic effects of chemicals on stem cells. In this study, we exposed rat bone marrow MSCs to 0, 10, 20, and 40 mM HD in vitro...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236310/insulin-induces-an-emt-like-process-in-mammary-epithelial-cells-mcf10a
#4
Cecilia Rodriguez-Monterrosas, Ricardo Díaz-Aragon, Elizabeth Leal-Orta, Pedro Cortes-Reynosa, Eduardo Perez Salazar
Diabetes mellitus has been related with an increased risk of breast cancer, whereas it has been suggested that links between diabetes mellitus and cancer are hyperinsulinemia, insulin resistance, hyperglycemia and chronic inflammation induced by adipose tissue. Contribution of hyperinsulinemia to carcinogenesis is mediated through resistance to endogenous insulin and by exogenous insulin used in treatment. Epithelial to mesenchymal transition (EMT) is a process by which epithelial cells are transdifferentiated to a mesenchymal state that has been implicated in cancer progression...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236219/radioresistant-sf9-insect-cells-readily-undergo-an-intrinsic-mode-of-apoptosis-in-response-to-histone-deacetylase-hdac-inhibition
#5
Jyoti Swaroop Kumar, Shubhankar Suman, Sudhir Chandna
Insect cell lines have been utilized as an important higher eukaryotic model system to decipher stress responses and cell death mechanisms. Lepidopteran Sf9 cells (derived from the ovaries of Spodoptera frugiperda) display nearly 100 times higher resistance to ionizing radiation in contrast to mammalian cells, which is partly contributed by an unusually high HDAC activity. However, their response to HDAC inhibition remains to be evaluated. In the present study, the effects of HDAC inhibitor (NaBt) on Sf9 cellular/nuclear morphology, cell cycle progression, DNA damage/repair, redox status, and mitochondrial perturbations were evaluated...
December 13, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29235504/the-%C3%AE-fibrinogen-gene-455g-a-polymorphism-associated-with-cardioembolic-stroke-in-atrial-fibrillation-with-low-cha2ds2-vasc-score
#6
Xiaofeng Hu, Junjun Wang, Yaguo Li, Jiong Wu, Song Qiao, Shanhu Xu, Jun Huang, Linhui Chen
Previous work has suggested that ischemic stroke (IS) may be more likely to occur in individuals with a genetic predisposition. In this study, we investigated the potential association of IS-relevant genetic risk factors with cardioembolic stroke (CES) in atrial fibrillation (AF) patients with low CHA2DS2-VaSc score. Genotyping was performed using the GenomeLab SNPstream genotyping platform for five IS-relevant SNPs (MMP-9 C1562T, ALOX5AP SG13S114A/T, MTHFR 677 C/T, FGB 455 G/A, and eNOS G298A) in 479 AF patients with CES and 580 age and sex-matched AF patients without CES...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29234420/mmp-inhibitory-effects-of-flavonoid-glycosides-from-edible-medicinal-halophyte-limonium-tetragonum
#7
Min Joo Bae, Fatih Karadeniz, Jung Hwan Oh, Ga Hyun Yu, Mi-Soon Jang, Ki-Ho Nam, Youngwan Seo, Chang-Suk Kong
Limonium tetragonum has been well-known for its antioxidative properties as a halophyte. This study investigated the antimetastasis effect of solvent-partitioned L. tetragonum extracts (LTEs) and isolated compounds on HT1080 mouse melanoma cell model with a focus on matrix metalloproteinase (MMP) activity and TIMP and MAPK pathways. Upregulation and stimulation of MMPs result in elevated degradation of extracellular matrix which is part of several complications such as metastasis, cirrhosis, and arthritis. The anti-MMP capacity of LTEs was confirmed by their MMP-inhibitory effects, regulation of MMP and TIMP expression, and suppression of MAPK pathway...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234409/antcin-h-isolated-from-antrodia-cinnamomea-inhibits-renal-cancer-cell-invasion-partly-through-inactivation-of-fak-erk-c-ebp-%C3%AE-c-fos-mmp-7-pathways
#8
Kun-Yuan Chiu, Tzu-Hsiu Chen, Chi-Luan Wen, Jin-Mei Lai, Chi-Chih Cheng, Hsiang-Chun Liu, Shih-Lan Hsu, Yew-Min Tzeng
Antcin-H, a natural triterpene, is purified from a famous anticancer medicinal mushroom, Antrodia cinnamomea, in Taiwan. This study showed that antcin-H inhibited the growth of human renal carcinoma 786-0 cells; the IC50 value (for 48 h) was 170 μM. Besides, the migration and invasion of 786-0 cells were suppressed by antcin-H under noncytotoxic concentrations (<100 μM); these events were accompanied by inhibition of FAK and Src kinase activities, decrease of paxillin phosphorylation, impairment of lamellipodium formation, and upregulation of TIMPs and downregulation of MMPs, especially MMP-7 expression...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234202/matrix-metalloproteinases-mmps-in-liver-diseases
#9
REVIEW
Adnan Naim, Qiuwei Pan, Mirza S Baig
Matrix metalloproteinases (MMPs) are proteinases capable of degrading components of the extracellular matrix and numerous nonmatrix proteins. MMPs along with tissue inhibitors of MMPs, have been implicated in the pathogenesis of liver diseases. Although, the precise mechanism-of-actions of MMPs in various liver related disorders is largely unknown, however, data from diverse experimental models indicate that these proteinases influence cellular activities including proliferation and survival, gene expression, as well as multiple aspects of inflammation...
December 2017: Journal of Clinical and Experimental Hepatology
https://www.readbyqxmd.com/read/29233785/angiotensin-ii-receptor-blocker-valsartan-ameliorates-cardiac-fibrosis-partly-by-inhibiting-mir-21-expression-in-diabetic-nephropathy-mice
#10
Jinyang Wang, Lijun Duan, Yanbin Gao, Shuhong Zhou, Yongming Liu, Suhong Wei, Siqin An, Jing Liu, Liming Tian, Shaocheng Wang
Cardiac fibrosis with diabetic nephropathy (DN) is one of major diabetic complications. miR-21 and MMP-9 were closely associated with fibrosis diseases. Angiotensin II receptor blockers (ARB) have cardioprotective effects. However, it remains unclear whether miR-21 was involved in the mechanism of cardiac fibrosis with DN by target MMP-9 and ARB ameliorates cardiac fibrosis partly by inhibiting miR-21 expression. In this study, In Situ Hybridization(ISH), RT-PCR, cell transfection, western blotting and laser confocal telescope were used, respectively...
December 9, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29233714/bi-layered-nanocomposite-bandages-for-controlling-microbial-infections-and-overproduction-of-matrix-metalloproteinase-activity
#11
J Anjana, Annapoorna Mohandas, S Seethalakshmy, Maneesha K Suresh, Riju Menon, Raja Biswas, R Jayakumar
Chronic diabetic wounds is characterised by increased microbial contamination and overproduction of matrix metalloproteases that would degrade the extracellular matrix. A bi-layer bandage was developed, that promotes the inhibition of microbial infections and matrix metalloprotease (MMPs) activity. Bi-layer bandage containing benzalkonium chloride loaded gelatin nanoparticles (BZK GNPs) in chitosan-Hyaluronic acid (HA) as a bottom layer and sodium alendronate containing chitosan as top layer was developed. We hypothesized that the chitosan-gelatin top layer with sodium alendronate could inhibit the MMPs activity, whereas the chitosan-HA bottom layer with BZK GNPs (240±66nm) would enable the elimination of microbes...
December 9, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29233192/methanolic-extract-of-euchelus-asper-exhibits-in-ovo-anti-angiogenic-and-in-vitro-anti-proliferative-activities
#12
Sweta Agrawal, Sachin Chaugule, Shashank More, Gargi Rane, Madhavi Indap
BACKGROUND: The marine environment is a rich source of bioactive natural products. Many of the marine bioactive compounds have been derived successfully from molluscs. Euchelus asper is a marine mollusc which is commonly found in the intertidal rocky regions of the Mumbai coast. The present study was focused on evaluating the anti-angiogenic and anti- proliferative activities of methanolic extract of Euchelus asper (EAME). METHODS: The anti-angiogenic activity of EAME (50-800 μg/mL) was assessed by chick chorio-allantoic membrane (CAM) model wherein multiple parameters in the CAM blood vessels were analysed through morphometric and histological investigations...
December 12, 2017: Biological Research
https://www.readbyqxmd.com/read/29233029/molecular-hepatoprotective-effects-of-lipoic-acid-against-carbon-tetrachloride-induced-liver-fibrosis-in-rats-hepatoprotection-at-molecular-level
#13
K M Sadek, E A Saleh, S M Nasr
BACKGROUND: Liver fibrosis is a noteworthy well-being issue that can prompt the progression of liver cirrhosis and hepatocellular carcinoma. Prominently, many antioxidants have been shown to have defensive impacts against liver fibrosis. AIM: Subsequently, in the present study, the viability of alpha-lipoic acid (α-LA) in ensuring against carbon tetrachloride (CCl4)-actuated liver fibrosis and the mechanism(s) involved in this defensive impact were considered in rats...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29233008/non-polar-compounds-of-persian-gulf-sea-cucumber-holothuria-parva-selectively-induce-toxicity-on-skin-mitochondria-isolated-from-animal-model-of-melanoma
#14
Yalda Arast, Nina Seyed Razi, Melika Nazemi, Enayatollah Seydi, Jalal Pourahmad
PURPOSE: Melanoma is a highly aggressive and deadly cancer with a poor prognosis given its drug resistance. A defect in apoptosis is one of the key mechanisms that contribute to drug resistance in Melonama. An important sea marine animal is the Holothuria parva, also known as the sea cucumber, which has various pharmacological activities. Compounds obtained from sea cucumbers have shown to have anticancer activity through induction of apoptosis singling. MATERIALS AND METHODS: In the present study, selective toxicity and apoptotic effect of three extracts of Holothuria parva (H...
December 12, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/29232411/rev-erb-agonist-improves-adverse-cardiac-remodeling-and-survival-in-myocardial-infarction-through-an-anti-inflammatory-mechanism
#15
Endin Nokik Stujanna, Nobuyuki Murakoshi, Kazuko Tajiri, DongZhu Xu, Taizo Kimura, Rujie Qin, Duo Feng, Saori Yonebayashi, Yukino Ogura, Fumi Yamagami, Akira Sato, Akihiko Nogami, Kazutaka Aonuma
Rev-erb α, known as nuclear receptor 1D1 (NR1D1), regulates circadian rhythm, modulates glucose and lipid metabolism, and inflammatory response. However, little is known about the effect of Rev-erb agonist on the progression of myocardial infarction (MI) and heart failure. To investigate it, wild-type male mice underwent sham-operation or permanent ligation of the left anterior descending coronary artery to create MI model. Rev-erb agonist SR9009 (100 mg/kg/day) or vehicle was intraperitoneally administered...
2017: PloS One
https://www.readbyqxmd.com/read/29232190/the-effects-of-curcuma-longa-and-curcumin-on-reproductive-systems
#16
R Mohebbati, A Anaeigoudari, M R Khazdair
OBJECTIVE: Curcuma longa (C. longa) was used in some countries such as China and India for various medicinal purposes. Curcumin, the active component of C. longa, is commonly used as a coloring agent in foods, drugs, and cosmetics. C. longa and curcumin have been known to act as antioxidant, anti-inflammatory, anti-mutagen, and anti-carcinogenic agents. Th e attempt of the present review was to give an effort on a detailed literature survey concentrated on the protective effects of C...
October 26, 2017: Endocrine Regulations
https://www.readbyqxmd.com/read/29231977/dids-inhibits-overexpression-bak1-induced-mitochondrial-apoptosis-through-gsk3%C3%AE-%C3%AE-catenin-signaling-pathway
#17
Xiayun Yang, Shusheng Tang, Daowen Li, Xiaohong Yu, Fuyun Wang, Xilong Xiao
Bcl-2 homologous antagonist/killer (BAK1) is a critical regulator of mitochondrial apoptosis. Although upregulation of BAK1 induces apoptosis has been established, the underlying molecular mechanism is far from clear. 4,4'-diisothiocyanostilbene-2,2'-disulfonic acid (DIDS), an organic anion used as a blocker of anion exchangers and chloride channels, has been proved to rescue cell apoptosis both in vitro and in vivo. However, whether DIDS can inhibit BAK1-induced mitochondrial apoptosis remains undefined. Thus, this study aimed to explore whether DIDS could protect BAK1-induced apoptosis through GSK3β/β-catenin signaling pathway...
December 12, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29230268/an-alginate-cyclodextrin-spray-drying-matrix-to-improve-shelf-life-and-antioxidant-efficiency-of-a-blood-orange-by-product-extract-rich-in-polyphenols-mmps-inhibition-and-antiglycation-activity-in-dysmetabolic-diseases
#18
Maria Rosaria Lauro, Lucia Crascì, Virgilio Giannone, Gabriele Ballistreri, Simona Fabroni, Francesca Sansone, Paolo Rapisarda, Anna Maria Panico, Giovanni Puglisi
Alginate and β-cyclodextrin were used to produce easily dosable and spray-dried microsystems of a dried blood orange extract with antidysmetabolic properties, obtained from a by-product fluid extract. The spray-dried applied conditions were able to obtain a concentrate dried extract without the loss of AOA and with TPC and TMA values of 35-40% higher than that of the starting material. They were also effective in producing microparticles with 80-100% of encapsulation efficiency. The 2% sodium alginate was capable of improving the extract shelf life, while the beta-cyclodextrin (1 : 1 molar ratio with dried extract) prolonged the extract antioxidant efficiency by 6 hours...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29229950/aneurysm-severity-is-increased-by-combined-mmp-7-deletion-and-n-cadherin-mimetic-ec4-fc-over-expression
#19
Cressida A Lyon, Helen Williams, Rosaria Bianco, Steven J Simmonds, Bethan A Brown, Kerry S Wadey, Frank C T Smith, Jason L Johnson, Sarah J George
There is an unmet need for treatments to reduce abdominal aortic aneurysm (AAA) progression. Vascular smooth muscle cell (VSMC) apoptosis precipitates AAA formation, whereas VSMC proliferation repairs the vessel wall. We previously demonstrated that over-expression of EC4-Fc (truncated N-cadherin), or deletion of matrix-metalloproteinase-7 (Mmp-7) reduced VSMC apoptosis in mouse atherosclerotic plaques. Additionally, MMP-7 promotes VSMC apoptosis by cleavage of N-cadherin. We investigated their combined effect on AAA formation...
December 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29229272/effect-of-different-resistance-training-protocols-on-the-extracellular-matrix-of-the-calcaneal-tendon-of-rats
#20
Josete Mazon, Andrea Aparecida de Aro, Priscyla Waleska Targino de Azevedo Simões, Edson Rosa Pimentel
The calcaneal tendon extracellular matrix (ECM) is composed of collagen, non-collagenous glycoproteins and proteoglycans, and able to adapt to various biomechanical stimuli. The objective of this study was to analyze the response of different resistance-training protocols, such as hypertrophy, strength and resistance, on the organization of the calcaneal tendon after training. Wistar rats were divided into for groups: untrained (UT), resistance training (RT), hypertrophy training (HT), and strength training (ST)...
December 8, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
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