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https://www.readbyqxmd.com/read/29661554/effect-of-skin-graft-thickness-on-scar-development-in-a-porcine-burn-model
#1
Danielle M DeBruler, Britani N Blackstone, Kevin L McFarland, Molly E Baumann, Dorothy M Supp, J Kevin Bailey, Heather M Powell
Animal models provide a way to investigate scar therapies in a controlled environment. It is necessary to produce uniform, reproducible scars with high anatomic and biologic similarity to human scars to better evaluate the efficacy of treatment strategies and to develop new treatments. In this study, scar development and maturation were assessed in a porcine full-thickness burn model with immediate excision and split-thickness autograft coverage. Red Duroc pigs were treated with split-thickness autografts of varying thickness: 0...
April 13, 2018: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/29659128/activation-of-dna-demethylases-attenuates-aging-associated-arterial-stiffening-and-hypertension
#2
Kai Chen, Zhongjie Sun
DNA methylation increases with age. The objective of this study was to investigate whether compound H, a potential activator of DNA demethylases, attenuates aging-related arterial stiffness and hypertension. Aged mice (24-27 months) and adult mice (12 months) were used. Pulse wave velocity (PWV), a direct measure of arterial stiffness, and blood pressure (BP) were increased significantly in aged mice. Notably, daily treatments with compound H (15 mg/kg, IP) for 2 weeks significantly attenuated the aging-related increases in PWV and BP...
April 16, 2018: Aging Cell
https://www.readbyqxmd.com/read/29657523/comparison-of-osteoclastogenesis-and-local-invasiveness-of-ameloblastoma-and-keratocystic-odontogenic-tumor
#3
Natheer H Al-Rawi, Ammar K Al-Siraj, Ahlam H Majeed
Objectives: The aim of this study was to compare the expression of receptor-activated nuclear factor kappa B (RANK) with its ligand (RANKL) and matrix metalloproteinase-2 (MMP2) in solid/multicystic ameloblastomas (ABs) and keratocystic odontogenic tumors (KOTs). Materials and Methods: The expression of MMP2, RANK, and RANKL molecules was evaluated in 13 ABs and 14 KOTs by immunohistochemistry. The expressions were calculated in the odontogenic epithelial cells as well as the stromal cells...
January 2018: European Journal of Dentistry
https://www.readbyqxmd.com/read/29656647/tea-polysaccharides-inhibits-colitis-associated-colorectal-cancer-via-interleukin-6-stat3-pathway
#4
Li-Qiao Liu, Mingyue Shen, Shao-Ping Nie, Jie-Lun Hu, Qiang Yu, Deming Gong, Ming-Yong Xie
The interleukin-6 (IL-6)/signal transducer and activator of transcription (STAT)-3 signaling pathway regulates survival and proliferation of intestinal epithelial cells, and has profound impact on the tumorigenesis of colitis-associated cancer (CAC). Tea polysaccharides (TPS) is the major nutraceutical component isolated from tea-leaves and is known to possess antioxidant, anti-inflammatory and antitumor bi-oactivities. Here, we investigated the antitumor activities of TPS on CAC using the azoxymethane/dextran sulfate sodium (AOM/DSS) mouse model and IL-6-induced colorectal cancer cell line (CT26), and determined whether TPS exerted its antitumor effects through the IL-6/STAT3 pathway...
April 15, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29642915/adipokine-rbp4-drives-ovarian-cancer-cell-migration
#5
Yanyan Wang, Yilin Wang, Zhenyu Zhang
BACKGROUND: Obesity has been linked to several types of cancers including ovarian cancer. Retinol binding protein 4 (RBP4) is an adipokine that drives the development of hyperinsulinemia and type II diabetes in obesity patients and animals. Previously, we have identified RBP4 as a serum marker for ovarian cancer. Here we further explored the consequence of RBP4 upregulation in ovarian cancer cells and its molecular mechanism. RESULTS: Our results show that RBP4 is overexpressed in ovarian cancer cells to the same extent as in adipose tissues...
April 11, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29642803/expression-of-n-acetylglucosaminyltransferase-iii-promotes-trophoblast-invasion-and-migration-in-early-human-placenta
#6
Qinyin Deng, Xiru Liu, Zhongmei Yang, Lan Xie
INTRODUCTION: Trophoblast migration and invasion at the maternal-fetal interface are crucial events for normal placentation and successful pregnancy. This progress is well controlled by many placenta-specific factors. Inadequate trophoblast invasion results in poor placenta plantation or even complications such as preeclampsia. It has been shown that N-acetylglucosaminyltransferase III (GnT-III) participates in tumor invasion and metastasis as a suppressor; however, the expression of GnT-III and its role in normal pregnancy is unclear...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29625460/macrophage-associated-gelatinase-degrades-basement-membrane-at-the-optic-fissure-margins-during-normal-ocular-development-in-mice
#7
Naho Tsuji, Tetsuro Matsuura, Isao Narama, Atsushi Yoshiki, Kiyokazu Ozaki
Purpose: Basement membrane degradation and macrophage aggregation at the optic fissure margins are crucial to optic fissure closure during normal murine eye development. Basement membrane degradation is also an essential step in cancer development, and matrix metalloproteinases (MMPs) play an important role. In this study, we investigated MMP alteration at the degrading basement membrane of optic fissure margins in mice and attempted to clarify the relationship between MMP activity and macrophages...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29625455/release-of-different-cell-mediators-during-retinal-pigment-epithelium-regeneration-following-selective-retina-therapy
#8
Elisabeth Richert, Stefan Koinzer, Jan Tode, Kerstin Schlott, Ralf Brinkmann, Jost Hillenkamp, Alexa Klettner, Johann Roider
Purpose: To investigate the effect of selective retina therapy (SRT) on the release of AMD-relevant cell mediators, such as matrix metalloproteinases (MMPs), VEGF, and pigment epithelium derived factor (PEDF) using different laser spot sizes and densities. Methods: Porcine RPE-choroid explants were treated with a pulsed 532 nm Nd:YAG laser using (1) large spot sizes, (2) small spot sizes with a high-density (hd) treatment, and (3) small spot sizes with a low-density (ld) treatment...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29623473/copper-complex-derived-from-s-benzyldithiocarbazate-and-3-acetylcoumarin-induced-apoptosis-in-breast-cancer-cell
#9
Jhi Biau Foo, May Lee Low, Ji Hui Lim, Yan Zhi Lor, Rusyidah Zainol Abidin, Vilasini Eh Dam, Napsiah Abdul Rahman, Chaw Yee Beh, Lee Chin Chan, Chee Wun How, Yin Sim Tor, Latifah Saiful Yazan
Copper complexes have been widely studied for the anti-tumour application as cancer cells are reported to take up greater amounts of copper than normal cells. Preliminary study revealed that the newly synthesised copper complex [Cu(SBCM)2 ] displayed marked anti-proliferative towards triple-negative MDA-MB-231 breast cancer cells. Therefore, Cu(SBCM)2 has great potential to be developed as an agent for the management of breast cancer. The present study was carried out to investigate the mode of cell death induced by Cu(SBCM)2 towards MDA-MB-231 breast cancer cells...
April 5, 2018: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/29620263/tpx2-silencing-mediated-by-joint-action-of-microvesicles-and-ultrasonic-radiation-inhibits-the-migration-and-invasion-of-skov3-cells
#10
Dong Huang, Jianmin Chen, Cuiyu Yang, Minzhen Wang
Ovarian cancer, with its high morbidity, has one of the highest mortality rates among gynecological malignant tumors. Overexpression of targeting protein for Xklp2 (TPX2) has been identified in numerous malignant tumors. The present study sought to determine whether TPX2 silencing inhibited the growth and metastasis of ovarian cancer cells, and whether microvesicles‑ and ultrasonic radiation‑mediated small interfering (si)RNA‑TPX2 transfection may improve the therapeutic effect. The SKOV3 cell line, derived from papillary serous cytadenocarcinoma of the human ovary, was selected as a cell model...
March 28, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29620225/role-of-cantharidin-in-the-activation-of-ikk%C3%AE-i%C3%AE%C2%BAb%C3%AE-nf%C3%A2-%C3%AE%C2%BAb-pathway-by-inhibiting-pp2a-activity-in-cholangiocarcinoma-cell-lines
#11
Huijiang Zhou, Jiangfeng Xu, Shuai Wang, Jinfeng Peng
Cantharidin (CAN), a potent inhibitor of serine/threonine‑protein phosphatase 2A (PP2A), is widely used in clinical practice, particularly in the treatment of advanced cancer due to its specific action on these types of cancer. In the present study, the inhibitory effect of CAN was examined in two cholangiocarcinoma cell lines (QBC939 and Hucc‑t1). Following treatment with CAN, cell viability was effectively reduced in QBC939 and Hucc‑t1 cells and normal human intrahepatic biliary epithelial cells. However, a slight increase in reactive oxygen species levels in QBC939 cells treated with CAN was observed post‑treatment...
April 5, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29615065/efficacy-safety-and-recurrence-of-new-progestins-and-selective-progesterone-receptor-modulator-for-the-treatment-of-endometriosis-a-comparison-study-in-mice
#12
Bo Liang, Ling Wu, Hui Xu, Chun Wai Cheung, Wen Ying Fung, Sze Wai Wong, Chi Chiu Wang
BACKGROUND: Current medical treatments for endometriosis are very limited. Progestin and selective progesterone receptor modulators (SPRM) are developed but their efficacy, safety, mechanism and recurrence in endometriosis are not fully studied. METHODS: In order to compare therapeutic, side effects and therapeutic actions of Esmya, Duphaston and Dienogest in endometriosis. Experimental endometriosis was induced by either intraperitoneal or subcutaneous mouse endometrium transplantation...
April 3, 2018: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29610564/effects-of-secreted-frizzled-related-protein-1-on-proliferation-migration-invasion-and-apoptosis-of-colorectal-cancer-cells
#13
Zhongchuan Wang, Rujia Li, Yongshan He, Shiyong Huang
Background: Secreted frizzled-related protein 1 (SFRP1) is a member of the SFRPs family that modulates the Wnt signal transduction pathway. Recent studies have showed down-regulation of SFRP1 expression in colorectal cancer (CRC). We aimed to evaluate the effect of SFRP1 on the proliferation, migration, invasion and apoptosis of CRC cells in vitro. Materials and methods: We used real-time fluorescence quantification (RT-PCR) and Western blotting to detect SFRP1 expression in CRC, pericarcinomatous tissues and CRC cell lines...
2018: Cancer Cell International
https://www.readbyqxmd.com/read/29606008/mulberry-polyphenol-extract-inhibits-fak-src-pi3k-complex-and-related-signaling-to-regulate-the-migration-in-a7r5-cells
#14
Meng-Hsun Yu, Tsung-Yuan Yang, Hsieh-Hsun Ho, Hui-Pei Huang, Kuei-Chuan Chan, Chau-Jong Wang
Atherosclerosis is characterized by the buildup of plaque inside arteries. Our recent studies demonstrated that polyphenolic natural products can reduce oxidative stress, inflammation, angiogenesis, hyperlipidemia, and hyperglycemia. A previous study also showed that mulberry water extract (MWE) can inhibit atherosclerosis and contains considerable amounts of polyphenols. Therefore, in the present study, we investigated whether mulberry polyphenol extract (MPE) containing high levels of polyphenolic compounds could affect vascular smooth muscle cell (VSMC; A7r5 cell) motility...
April 2, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29604590/nesfatin-1-promotes-vsmc-migration-and-neointimal-hyperplasia-by-upregulating-matrix-metalloproteinases-and-downregulating-ppar%C3%AE
#15
Ji-Ru Zhang, Qing-Bo Lu, Wu-Bing Feng, Hui-Ping Wang, Zi-Han Tang, Han Cheng, Qiong Du, Yuan-Ben Wang, Ke-Xue Li, Hai-Jian Sun
The dedifferentiation, proliferation and migration of vascular smooth muscle cells (VSMCs) are essential in the progression of hypertension, atherosclerosis and intimal hyperplasia. Nesfatin-1 is a potential modulator in cardiovascular functions. However, the role of nesfatin-1 in VSMC biology has not been explored. The present study was designed to determine the regulatory role of nesfatin-1 in VSMC proliferation, migration and intimal hyperplasia after vascular injury. Herein, we demonstrated that nesfatin-1 promoted VSMC phenotype switch from a contractile to a synthetic state, stimulated VSMC proliferation and migration in vitro...
March 28, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29601813/effects-of-cell-adhesion-motif-fiber-stiffness-and-cyclic-strain-on-tenocyte-gene-expression-in-a-tendon-mimetic-fiber-composite-hydrogel
#16
Dharmesh Patel, Sadhana Sharma, Hazel R C Screen, Stephanie J Bryant
We recently developed a fiber composite consisting of tenocytes seeded onto discontinuous fibers embedded within a hydrogel, designed to mimic physiological tendon micromechanics of tension and shear. This study examined if cell adhesion peptide (DGEA or YRGDS), fiber modulus (50 or 1300 kPa) and/or cyclic strain (5% strain, 1 Hz) influenced bovine tenocyte gene expression. Ten genes were analyzed and none were sensitive to peptide or fiber modulus in the absence of cyclic tensile strain. Genes associated with tendon (SCX and TNMD), collagens (COL1A1, COL3A1, COL11A1), and matrix remodelling (MMP1, MMP2, and TIMP3) were insensitive to cyclic strain...
March 27, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29595072/platycodin-d-reverses-pathological-cardiac-hypertrophy-and-fibrosis-in-spontaneously-hypertensive-rats
#17
Yuan-Chuan Lin, Yu-Chen Lin, Wei-Wen Kuo, Chia-Yao Shen, Yi-Chang Cheng, Yueh-Min Lin, Ruey-Lin Chang, Vijaya V Padma, Chih-Yang Huang, Chih-Yang Huang
Platycodin D (PD) is the main active saponin isolated from Platycodon grandiflorum (PG) and is reported to exhibit anticancer, anti-angiogenic, anti-inflammation and anti-obesity biological effects. The current study aims to evaluate the therapeutic efficacy of PD in cardiac fibrosis and for hypertrophy in spontaneous hypertension rats (SHRs) and to verify inhibition of the signaling pathway. Significant increases in the cardiac functional indices of left ventricular internal diameter end diastole (LVIDd) and left ventricular internal diameter end systole (LVIDs); the eccentric hypertrophy marker p-MEK5; concentric hypertrophy markers, such as CaMKII[Formula: see text] and calcineurin; and expression levels of NFATc3, p-GATA4 and BNP were observed in spontaneously hypertensive groups...
March 29, 2018: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29593670/porcine-circovirus-like-virus-p1-inhibits-wnt-signaling-pathway-in-vivo-and-in-vitro
#18
Xuejiao Zhu, Libin Wen, Shaoyang Sheng, Wei Wang, Qi Xiao, Meng Qu, Yiyi Hu, Chuanmin Liu, Kongwang He
Porcine circovirus-like virus P1 is an important pathogen of the current pig industry, the infection mechanism is not entirely clear. Wnt signaling pathway plays an important role in the growth of young animals and infection of some viruses. This study was designed to demonstrate the effects of P1 infection on the Wnt signaling pathway. In vivo experiments, we demonstrated the down-regulatory effects of P1 infection in piglets and mice on the downstream components expression levels of Wnt signaling pathway, and the effects of Wnt signaling pathway activation on the pathogenesis of P1...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29588320/urinary-bladder-cancer-tregs-suppress-mmp2-and-potentially-regulate-invasiveness
#19
Malin E Winerdal, David Krantz, Ciputra A Hartana, Ali A Zirakzadeh, Ludvig Linton, Emma A Bergman, Robert Rosenblatt, Janos Vasko, Farhood Alamdari, Johan Hansson, Benny Holmström, Markus Johansson, Max Winerdal, Per Marits, Amir Sherif, Ola Winqvist
Regulatory T cells (Treg) have long been considered one-sided suppressors of antitumor immune responses and hence associated with poor patient outcome in cancer. However, evidence is mounting of a paradoxical positive prognostic effect of Tregs on certain malignancies, including urinary bladder cancer (UBC). This discrepancy has partly been attributed to the shear misidentification of Tregs, but also to the inflammatory profile of the tumor. Our aim was to determine whether tumor-infiltrating Forkhead box P3+ (FOXP3+ ) cells confer a stable Treg phenotype and to investigate putative beneficial Treg functions, focusing on tumor-promoting inflammatory pathways in UBC...
March 27, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29581776/association-of-smoking-and-xpg-cyp1a1-ogg1-ercc5-ercc1-mmp2-and-mmp9-gene-polymorphisms-with-the-early-detection-and-occurrence-of-laryngeal-squamous-carcinoma
#20
Yi Zhu, Luo Guo, ShengZi Wang, Qun Yu, JianXiong Lu
A total of 200 smoking-related laryngeal carcinoma patients with pathology confirmation from the Eye and ENT Hospital and 190 high-risk smokers were included in a survey. All of the participants had a smoking index greater than 400 (cigarettes/day*year.) We obtained data on clinical and baseline characteristics, and peripheral blood was obtained and subjected to DNA extraction to analyse the correlation between smoking and the occurrence of laryngeal carcinoma. We selected candidate genes and SNP fragments that were found to be closely associated with smoking-related tumours in preliminary studies...
2018: Journal of Cancer
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