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https://www.readbyqxmd.com/read/28733476/mir-30e-targets-glipr-2-to-modulate-diabetic-nephropathy-in-vitro-and-in-vivo-experiments
#1
Dong Zhao, Jinhua Jia, Hong Shao
The objectives of this study are to investigate the effect of miR-30e targeting GLIPR-2 on the pathological mechanism of DN. The renal tissues of db/db and db/m mice at different age of weeks were stained with PAS. qRT-PCR was applied to detect the expression of miR-30e and GLIPR-2, not only in the renal tissues of mice but also in the renal tubular epithelial cells (RTECs). By luciferase reporter gene assays, we found the 3'-UTR of the GLIPR-2 mRNA as a direct target of miR-30e. The RTECs cultured in high glucose were divided into blank control, NC, miR-30e mimics, miR-30e inhibitors, miR-30e inhibitor + si-GLIPR-2 and si-GLIPR-2 groups...
August 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28725012/phycocyanin-attenuates-pulmonary-fibrosis-via-the-tlr2-myd88-nf-%C3%AE%C2%BAb-signaling-pathway
#2
Chengcheng Li, Yan Yu, Wenjun Li, Bo Liu, Xudong Jiao, Xinyu Song, Changjun Lv, Song Qin
Our aim was to investigate the effects of phycocyanin (PC) on bleomycin (BLM)-induced pulmonary fibrosis (PF). In this study, C57 BL/6 wild-type (WT) mice and toll-like receptor (TLR) 2 deficient mice were treated with PC for 28 days following BLM exposure. Serum and lung tissues were collected on days 3, 7 and 28. Data shows PC significantly decreased the levels of hydroxyproline (HYP), vimentin, surfactant-associated protein C (SP-C), fibroblast specific protein-1 (S100A4) and α-smooth muscle actin (α-SMA) but dramatically increased E-cadherin and podoplanin (PDPN) expression on day 28...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28722118/at2-r-deficiency-mediated-podocyte-loss-via-activation-of-ectopic-hedgehog-interacting-protein-hhip-gene-expression
#3
Min-Chun Liao, Xin-Ping Zhao, Shiao-Ying Chang, Chao-Sheng Lo, Isabelle Chenier, Tomoko Takano, Julie R Ingelfinger, Shao-Ling Zhang
Angiotensin II type 2 receptor (AT2 R) deficiency in AT2 R knockout (KO) mice has been linked to congenital abnormalities of the kidney and urinary tract; however, the mechanisms by which this occurs are poorly understood. In this study, we examined whether AT2 R deficiency impaired glomerulogenesis and mediated podocyte loss/dysfunction in vivo and in vitro. Nephrin-cyan fluorescent protein (CFP)-transgenic (Tg) and Nephrin/AT2 RKO mice were used to assess glomerulogenesis, while wild-type and AT2 RKO mice were used to evaluate maturation of podocyte morphology/function...
July 19, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28720386/cdc42-interacting-protein-4-silencing-relieves-pulmonary-fibrosis-in-stz-induced-diabetic-mice-via-the-wnt-gsk-3%C3%AE-%C3%AE-catenin-pathway
#4
Xiaoping Zhang, Ying Liu, Runxia Shao, Wei Li
Cdc42-interacting protein-4 (CIP4) has been reported to be closely associated with diabetic nephropathy in rat. However, little is known about the correlation between CIP4 and diabetic pulmonary fibrosis (PF) in mice. Here, diabetes was induced by streptozotocin (STZ), and later lung tissue was collected and subjected to hematoxylin and eosin (H & E) staining for morphological examination. The distinct up-regulation of CIP4 was observed in diabetic PF mice. CIP4 silencing increased overall weight and decreased lung weight...
July 15, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28713484/moderate-autophagy-inhibits-vascular-smooth-muscle-cell-senescence-to-stabilize-progressed-atherosclerotic-plaque-via-the-mtorc1-ulk1-atg13-signal-pathway
#5
Zhenli Luo, Wenhuan Xu, Sai Ma, Hongyu Qiao, Lei Gao, Ran Zhang, Bo Yang, Ya Qiu, Jiangwei Chen, Ming Zhang, Bo Tao, Feng Cao, Yabin Wang
In order to investigate the effects of autophagy induced by rapamycin in the development of atherosclerosis plaque we established murine atherosclerosis model which was induced in ApoE(-/-) mice by high fat and cholesterol diet (HFD) for 16 weeks. Rapamycin and 3-Methyladenine (MA) were used as autophagy inducer and inhibitor respectively. The plaque areas in aortic artery were detected with HE and Oil Red O staining. Immunohistochemical staining were applied to investigate content of plaque respectively. In contrast to control and 3-MA groups, rapamycin could inhibit atherosclerosis progression...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713267/epoxyeicosatrienoic-acid-analog-decreases-renal-fibrosis-by-reducing-epithelial-to-mesenchymal-transition
#6
Melissa Skibba, Md Abdul Hye Khan, Lauren L Kolb, Michael M Yeboah, John R Falck, Radhika Amaradhi, John D Imig
Renal fibrosis, which is a critical pathophysiological event in chronic kidney diseases, is associated with renal epithelial-to-mesenchymal transition (EMT). Epoxyeicosatrienoic acids (EETs) are Cyp epoxygenase arachidonic acid metabolites that demonstrate biological actions that result in kidney protection. Herein, we investigated the ability of 14,15-EET and its synthetic analog, EET-A, to reduce kidney fibrosis induced by unilateral ureter obstruction (UUO). C57/BL6 male mice underwent sham or UUO surgical procedures and were treated with 14,15-EET or EET-A in osmotic pump (i...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28710422/enmd-1068-inhibits-liver-fibrosis-through-attenuation-of-tgf-%C3%AE-1-smad2-3-signaling-in-mice
#7
Quan Sun, Yan Wang, Jie Zhang, Jing Lu
Protease-activated receptor 2 (PAR-2) plays an important role in the pathogenesis of liver fibrosis. We studied the effect of N1-3-methylbutyryl-N4-6-aminohexanoyl-piperazine (ENMD-1068), a PAR-2 antagonist, on the development of CCl4-induced liver fibrosis in mice and activation of hepatic stellate cells (HSCs) isolated from the mice. Before CCl4 injection, the mice were injected intraperitoneally with either 25 mg/kg or 50 mg/kg ENMD-1068 or with 200 μL of the vehicle control twice per week for 4 weeks...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28699690/microrna-let-7g-suppresses-pdgf-induced-conversion-of-vascular-smooth-muscle-cell-into-the-synthetic-phenotype
#8
Tzu-Ming Wang, Ku-Chung Chen, Po-Yuan Hsu, Hsiu-Fen Lin, Yung-Song Wang, Chien-Yuan Chen, Yi-Chu Liao, Suh-Hang H Juo
Platelet-derived growth factor (PDGF) can promote vascular smooth muscle cells (VSMCs) to switch from the quiescent contractile phenotype to synthetic phenotype, which contributes to atherosclerosis. We aimed to investigate the role of microRNA let-7g in phenotypic switching. Bioinformatics prediction was used to find let-7g target genes in the PDGF/mitogen-activated protein kinase kinase kinase 1 (MEKK1)/extracellular signal-regulated kinase (ERK)/Krüppel-like factor-4 (KLF4) signalling pathway that affects VSMC phenotypic switching...
July 12, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28698147/rip2-deficiency-attenuates-cardiac-hypertrophy-inflammation-and-fibrosis-in-pressure-overload-induced-mice
#9
Cui-Hua Zhao, Xiang Ma, Hong-Yu Guo, Peng Li, Hong-Yang Liu
Although the pathological cardiac hypertrophy presents a leading cause of morbidity and mortality worldwide, our knowledge of the molecular mechanisms underlying the disease is still poor. Here, we reported that receptor-interacting serine/threonine-protein kinase 2 (RIP2), promoting pro-inflammatory gene expression, enhanced the pathological cardiac hypertrophy in animals. The effects of RIP2 on the cardiac hypertrophy triggered by pathological stimuli have not been fully investigated. In our study, mice were subjected to aortic banding (AB) surgery to explore the pathological, echocardiographic and molecular mechanisms...
July 8, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28694203/soluble-epoxide-hydrolase-inhibitor-auda-decreases-bleomycin-induced-pulmonary-toxicity-in-mice-by-inhibiting-the-p38-smad3-pathways
#10
Xin-Wei Dong, Yong-Liang Jia, Ling-Tian Ge, Bo Jiang, Jun-Xia Jiang, Jian Shen, Ya-Chao Jin, Yan Guan, Yun Sun, Qiang-Min Xie
Bleomycin (BLM) has potent tumor cell-killing properties that have given it an important place in cancer chemotherapy, but pulmonary toxicity is its major adverse effect. Soluble epoxide hydrolase (sEH) inhibitors have been reported to have protective effects in fibrosis models, but the effects of AUDA, an sEH inhibitor of BLM-induced pulmonary toxicity and fibrosis, remain to be researched. In this study, we assessed the effects of AUDA on the BLM-induced pulmonary fibrosis in a mouse model, and transforming growth factor (TGF)-β1-induced epithelial proliferation and epithelial-mesenchymal transition (EMT) in vitro by monitoring changes in pulmonary function, inflammatory response, fibrotic remodeling, and signaling pathways...
July 8, 2017: Toxicology
https://www.readbyqxmd.com/read/28683125/ucp-2-is-involved-in-angiotensin-ii-induced-abdominal-aortic-aneurysm-in-apolipoprotein-e-knockout-mice
#11
Peng Yan, Ken Chen, Qiang Wang, Dachun Yang, De Li, Yongjian Yang
UCP-2 shows an important role in modulating of mitochondrial membrane potential and cell apoptosis. Whether or not UCP-2 could been a critical factor in preventing AAA formation is not known. We report that UCP-2 protein and mRNA expression were significantly higher in Ang-Ⅱ-induced AAA of mice. The incident rate of AAA in UCP-2-/-ApoE-/- mice after Ang-Ⅱtreatment was higher than the rate in the UCP-2+/+ApoE-/- mice. The abdominal aorta from UCP-2-/-ApoE-/- mice showed the medial hypertrophy, fragmentation of elastic lamellas and depletion of α-SMA...
2017: PloS One
https://www.readbyqxmd.com/read/28677092/amelioration-of-bleomycin-induced-pulmonary-fibrosis-by-chlorogenic-acid-through-endoplasmic-reticulum-stress-inhibition
#12
Yi-Chun Wang, Jing Dong, Jing Nie, Ji-Xiang Zhu, Hui Wang, Qiong Chen, Jun-Yi Chen, Jia-Mei Xia, Wei Shuai
To investigate the inhibitory effects of chlorogenic acid on pulmonary fibrosis and the internal mechanisms in vivo and in vitro. 30 male BALB/C mice were randomized into 5 groups: control group, pulmonary fibrosis model group, low, middle and high dose of chlorogenic acid groups. Mice in pulmonary fibrosis model group were administered 5.0 mg/kg bleomycin with intracheal instillation and mice in 3 chlorogenic acid groups were treated with chlorogenic acid every day for 28 days after bleomycin administration...
July 4, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28670489/heat-shock-protein-70-2-hsp70-2-a-novel-cancer-testis-antigen-that-promotes-growth-of-ovarian-cancer
#13
Namita Gupta, Nirmala Jagadish, Avadhesha Surolia, Anil Suri
Heat shock protein 70-2 (HSP70-2) is known to be involved in tumor progression. However, its molecular role and mechanism in epithelial ovarian cancer (EOC) remains unknown. In the present investigation, we examined the role of HSP70-2 in cell cycle, apoptosis and epithelial mesenchymal transition pathways in EOC cells in in vitro and in-vivo xenograft mouse model. To investigate the role of HSP70-2 in ovarian cancer, plasmid driven short hairpin RNA approach was used to examine HSP70-2 gene and protein expression in ovarian cancer cell line A-10 (origin: serous papillary cystadenocarcinoma), Caov-3 (origin: adenocarcinoma) and SKOV3 (origin: adenocarcinoma; derived from metastatic site: ascites) by RT-PCR, quantitative-PCR, immunohistochemistry and Western blotting...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28666738/polydatin-protects-against-carbon-tetrachloride-induced-liver-fibrosis-in-mice
#14
Xinyi Zhao, Rui Li, Ying Liu, Xuehong Zhang, Min Zhang, Zhi Zeng, Limin Wu, Xuelin Gao, Tian Lan, Yiqing Wang
Reactive oxygen species (ROS) play a key role in chronic liver injury and fibrosis. Polydatin, a glucoside of resveratrol, has been shown to possess anti-oxidative bioactivity. It has been demonstrated that resveratrol has many therapeutic effects on liver disorders including liver fibrosis. Recent study showed that polydatin prevented acute liver injury after carbon tetrachloride (CCl4) induction. However, the protective effects of polydatin on chronic liver injury and fibrosis has not been understood. Thus, we aimed to determine the roles of polydatin in chronic liver injury and fibrosis...
June 27, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28662219/the-effects-of-c5-substituted-2-4-diaminoquinazolines-on-selected-transcript-expression-in-spinal-muscular-atrophy-cells
#15
Cinsley Gentillon, Andrew J Connell, Ryan W Kirk, Matthew E R Butchbach
C5-substituted 2,4-diaminoquinazolines (2,4-DAQs) ameliorate disease severity in SMA mice. It is uncertain, however, that these compounds increase SMN protein levels in vivo even though they were identified as activators of the SMN2 promoter. These compounds also regulate the expression of other transcripts in neuroblastoma cells. In this study, we investigate the mechanism by which the 2,4-DAQs regulate the expression of SMN2 as well as other targets. D156844, D158872, D157161 and D157495 (RG3039) increased SMN2 promoter-driven reporter gene activity by at least 3-fold in NSC-34 cells...
2017: PloS One
https://www.readbyqxmd.com/read/28660304/differences-in-the-renal-antifibrotic-cgmp-cgki-dependent-signaling-of-serelaxin-zaprinast-and-their-combination
#16
Veronika Wetzl, Elisabeth Schinner, Frieder Kees, Lothar Faerber, Jens Schlossmann
Renal fibrosis is an important factor for end-stage renal failure. However, only few therapeutic options for its treatment are established. Zaprinast, a phosphodiesterase 5 inhibitor, and serelaxin, the recombinant form of the naturally occurring hormone relaxin, are differently acting modulators of cyclic guanosine monophosphate (cGMP) signaling. Both agents enhance cGMP availability in kidney tissue. These substances alone or in combination might interfere with the development of kidney fibrosis. Therefore, we compared the effects of combination therapy with the effects of monotherapy on renal fibrosis...
June 28, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28659031/gypenosides-ameliorate-carbon-tetrachloride-induced-liver-fibrosis-by-inhibiting-the-differentiation-of-hepatic-progenitor-cells-into-myofibroblasts
#17
Jiamei Chen, Xuewei Li, Yonghong Hu, Wei Liu, Qun Zhou, Hua Zhang, Yongping Mu, Ping Liu
Gypenosides (GPs), the predominant components of Gynostemma pentaphyllum, exert antifibrotic effects; however, the mechanisms underlying their ability to ameliorate liver fibrosis are unclear. Liver fibrosis was induced in C57BL/6 mice via subcutaneous injection of 10% carbon tetrachloride (CCl[Formula: see text] three times a week for two weeks. Then, CCl4 was administered in conjunction with intragastric GPs for another three weeks. For in vitro analyses, WB-F344, hepatatic progenitor cells (HPCs) were treated with transforming growth factor beta 1 (TGF-β1) with or without GPs for 48[Formula: see text]h...
June 28, 2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28658504/fty720-ameliorates-renal-fibrosis-by-simultaneously-affecting-leukocyte-recruitment-and-tgf-%C3%AE-signaling-in-fibroblasts
#18
Tongguan Tian, Jun Zhang, Xingxing Zhu, Shuang Wen, Dongyan Shi, Hong Zhou
Renal fibrosis is the common final manifestation of chronic kidney diseases and usually results in end-stage renal failure. In this study, we evaluated the effect of FTY720, an analog of sphingosine 1-phosphate (S1P), as a treatment for the unilateral ureteral obstruction (UUO)-induced renal fibrosis animal model. We treated mice with FTY720 at a dosage of 1 mg/kg/day by intragastric administration from day 1 until day 7. The control group received the same amount of saline. FTY720 significantly reduced the urine albumin/creatinine ratio (UACR) in treated UUO mice...
June 28, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28652653/serelaxin-increases-the-antifibrotic-action-of-rosiglitazone-in-a-model-of-hepatic-fibrosis
#19
Robert G Bennett, Ronda L Simpson, Frederick G Hamel
AIM: To determine the effect of combined serelaxin and rosiglitazone treatment on established hepatic fibrosis. METHODS: Hepatic fibrosis was induced in mice by carbon tetrachloride administration for 6 wk, or vehicle alone (nonfibrotic mice). For the final 2 wk, mice were treated with rosiglitazone, serelaxin, or both rosiglitazone and serelaxin. Serum liver enzymes and relaxin levels were determined by standard methods. The degree of liver collagen content was determined by histology and immunohistochemistry...
June 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28647730/qiliqiangxin-attenuates-adverse-cardiac-remodeling-after-myocardial-infarction-in-ovariectomized-mice-via-activation-of-ppar%C3%AE
#20
Shutong Shen, Huimin Jiang, Yihua Bei, Jialiang Zhang, Haifeng Zhang, Hongsheng Zhu, Chenlin Zhang, Wenming Yao, Cong Wei, Hongcai Shang, Xinli Li
BACKGROUND/AIMS: This study was designed to investigate the therapeutic effect of traditional Chinese medication Qiliqiangxin (QLQX) on adverse cardiac remodeling after myocardial infarction (MI) in bilateral ovariectomized (OVX) female mice. METHODS: Eight-week old female C57BL/6 mice were operated to ligate the left anterior descending coronary artery seven days after bilateral ovariectomy and were orally administered either QLQX or vehicle. 21 days after ligation, echocardiography was performed to evaluate the heart function of all mice...
June 23, 2017: Cellular Physiology and Biochemistry
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