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https://www.readbyqxmd.com/read/28938572/osthole-inhibits-bone-metastasis-of-breast-cancer
#1
Chunyu Wu, Zhenping Sun, Baofeng Guo, Yiyi Ye, Xianghui Han, Yuenong Qin, Sheng Liu
Bone is one of the most common sites for breast cancer metastasis, which greatly contributes to patient morbidity and mortality. Osthole, a major extract from Cnidium monnieri (L.), exhibits many biological and pharmacological activities, however, its potential as a therapeutic agent in the treatment of breast cancer bone metastases remain poorly understood. In this study, we set out to investigate whether osthole could inhibit breast cancer metastasis to bone in mice and clarified the potential mechanism of this inhibition...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938007/neuropilin-1-modulates-tgf%C3%AE-signaling-to-drive-glioblastoma-growth-and-recurrence-after-anti-angiogenic-therapy
#2
Sam C Kwiatkowski, Paola A Guerrero, Shinya Hirota, Zhihua Chen, John E Morales, Manish Aghi, Joseph H McCarty
Glioblastoma (GBM) is a rapidly progressive brain cancer that exploits the neural microenvironment, and particularly blood vessels, for selective growth and survival. Anti-angiogenic agents such as the vascular endothelial growth factor-A (VEGF-A) blocking antibody bevacizumab yield short-term benefits to patients due to blood vessel regression and stabilization of vascular permeability. However, tumor recurrence is common, and this is associated with acquired resistance to bevacizumab. The mechanisms that drive acquired resistance and tumor recurrence in response to anti-angiogenic therapy remain largely unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28936800/evodiamine-ameliorates-liver-fibrosis-in-rats-via-tgf-%C3%AE-1-smad-signaling-pathway
#3
Dongmei Yang, Li Li, Shanjun Qian, Lixin Liu
Liver fibrosis is considered to be a result of chronic liver pathological changes, and hepatic stellate cells (HSCs) play an important role during this process. Evodiamine, an indole alkaloid derived from Evodia rutaecarpa, exhibits pharmacological activities. This study focused on the effects of evodiamine on carbon tetrachloride (CCl4)-induced liver fibrosis in rats and HSCs in vitro via the TGF-β1/Smad signaling pathway. A liver fibrosis rat model was established by the intraperitoneal injection of CCl4 (3 ml/kg, 30% in olive oil)...
September 21, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/28934669/transforming-growth-factor-beta-tgf-%C3%AE-mediates-cardiac-fibrosis-and-induces-diabetic-cardiomyopathy
#4
REVIEW
Yiyang Yue, Ke Meng, Yuejie Pu, Xiaoming Zhang
Cardiovascular diseases account for the major cause of morbidity and mortality among individuals with diabetes. The diabetic cardiomyopathy (DCM) is a type of diabetic cardiovascular disease, which further directs to the heart failure. The researchers found that diabetes induced cardiac fibrosis plays a vital role in several of the pathological changes that associated with DCM, causing left ventricular hypertrophy (LVH), diastolic dysfunction and systolic dysfunction. However, the mechanisms involved in the pathogenesis of DCM are still elusive...
September 1, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28931214/baicalin-alleviates-radiation-induced-epithelial-mesenchymal-transition-of-primary-type-ii-alveolar-epithelial-cells-via-tgf-%C3%AE-and-erk-gsk3%C3%AE-signaling-pathways
#5
Jinhua Lu, Yazhen Zhong, Zechen Lin, Xianlei Lin, Zhaohui Chen, Xuping Wu, Nan Wang, Haiqiao Zhang, Siyu Huang, Yuan Zhu, Yuanyuan Wang, Shengyou Lin
BACKGROUND: Radiation therapy is commonly used to treat thoracic malignancies. However, it may lead to severe lung pneumonitis and ultimately fibrosis. Irradiation has been reported to increase epithelial-mesenchymal transition (EMT) of type II alveolar epithelial cells (AEC), which play an important role in pulmonary fibrosis. The transforming growth factor-β (TGF-β) and ERK/glycogen synthase kinase 3β (GSK3β) pathways are critically involved in radiation-induced EMT. In the present study, we investigated whether baicalin was a novel therapeutic candidate for radiation-induced EMT in type II AEC...
September 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28929107/microrna-195-activates-hepatic-stellate-cells-in-vitro-by-targeting-smad7
#6
Li-Ying Song, Yu-Tao Ma, Cui-Fang Wu, Chun-Jiang Wang, Wei-Jin Fang, Shi-Kun Liu
BACKGROUND AND AIM: Aberrant activation of the TGF-β1/Smad pathway contributes to the activation of hepatic stellate cells (HSCs). MicroRNA-195 has been shown to regulate the activation of HSCs. The aim of this study was to investigate the role of miRNA-195 in HSCs activation. METHODS: A liver fibrotic rat model induced by diethylnitrosamine was established. Dual luciferase reporter assays were performed to verify that Smad7 was the target of miRNA-195. The expression levels of miR-195, Smad7, and α-SMA in HSC-T6 transfected, respectively, with miR-195 mimic, inhibitor, or control were measured by qRT-PCR...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28928664/yougui-pills-attenuate-cartilage-degeneration-via-activation-of-tgf-%C3%AE-smad-signaling-in-chondrocyte-of-osteoarthritic-mouse-model
#7
Lei Zhang, Ping-Er Wang, Jun Ying, Xing Jin, Cheng Luo, Taotao Xu, Shibing Xu, Rui Dong, Luwei Xiao, Peijian Tong, Hongting Jin
Yougui pills (YGPs) have been used for centuries in the treatment of Chinese patients with Kidney-Yang Deficiency Syndrome. Despite the fact that the efficiency of YGPs on treating osteoarthritis has been verified in clinic, the underlying mechanisms are not totally understood. The present study observes the therapeutic role of YGPs and mechanisms underlying its chondroprotective action in osteoarthritic cartilage. To evaluate the chondroprotective effects of YGPs, we examined the impact of orally administered YGPs in a model of destabilization of the medial meniscus (DMM)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28928159/bmp4-induces-m2-macrophage-polarization-and-favors-tumor-progression-in-bladder-cancer
#8
Víctor G Martínez, Carolina Rubio, Mónica Martínez-Fernández, Cristina Segovia, Fernando López-Calderón, Marina Garín, Alicia Teijeira, Ester Munera-Maravilla, Alberto Varas, Rosa Sacedón, Felix Guerrero-Ramos, Felipe Villacampa, Federico de la Rosa, Daniel Castellano, Eduardo López-Collazo, Jesus M Paramio, Ángeles Vicente, Marta Dueñas
PURPOSE: Bladder cancer (BC) is a current clinical and social problem. At diagnosis, most patients present non-muscle invasive tumors, characterized by a high recurrence rate, which could progress to muscle invasive disease and metastasis. Bone morphogenetic protein (BMP)-dependent signaling arising from stromal bladder tissue mediates urothelial homeostasis by promoting urothelial cell differentiation. However, the possible role of BMP ligands in BC is still unclear. EXPERIMENTAL DESIGN: Tumor and normal tissue from 68 patients with urothelial cancer were prospectively collected and analyzed for expression of BMP and macrophage markers...
September 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28926478/characterization-of-spontaneous-hydrocephalus-development-in-the-young-atherosclerosis-prone-mice
#9
Chuanguo Liu, Guorong Li, Pingping Wang, Yan Wang, Jie Pan
Little has been reported on whether abnormal lipid metabolism affects hydrocephalus, although congenital malformations and infectious diseases are major causal factors for hydrocephalus development. In a study on the pathogenesis of atherogenesis in mice, we unexpectedly discovered that hydrocephalus occurred in partial apolipoptotein E (apoE) and low-density lipoprotein receptor (LDLR) double-knockout (apoE/LDLR) mice fed either chow or a high-fat and high-cholesterol diet between the ages of 4 and 12 weeks...
September 18, 2017: Neuroreport
https://www.readbyqxmd.com/read/28923783/bmp7-induced-pten-inhibits-akt-and-prevents-renal-fibrosis
#10
Debra F Higgins, Leah Ewart, Enda Masterson, Sadhbh Tennant, Gleb Grebnev, Marco Prunotto, Sylvia Pomposiello, Karin Conde-Knape, Finian M Martin, Catherine Godson
Bone morphogenetic protein-7 (BMP-7) counteracts pro-fibrotic effects of TGFβ1 in cultured renal cells and protects from fibrosis in acute and chronic renal injury models. Using the unilateral ureteral obstruction (UUO) model of chronic renal fibrosis, we investigated the effect of exogenous-rhBMP-7 on pro-fibrotic signaling pathways mediated by TGFβ1 and hypoxia. Mice undergoing UUO were treated with vehicle or rhBMP-7 (300μg/kg i.p.) every other day for eight days and kidneys analysed for markers of fibrosis and SMAD, MAPK, and PI3K signaling...
September 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28921936/sprouty2-is-involved-in-the-control-of-osteoblast-proliferation-and-differentiation-through-the-fgf-and-bmp-signaling-pathways
#11
Takaharu Taketomi, Tomohiro Onimura, Daigo Yoshiga, Daichi Muratsu, Terukazu Sanui, Takao Fukuda, Jingo Kusukawa, Seiji Nakamura
Fibroblast growth factor (FGF) and bone morphogenetic protein (BMP) play essential roles in bone formation and osteoblast activity through the extracellular signal regulated kinase 1/2 (ERK1/2) and Smad pathways. Sprouty family members are intracellular inhibitors of the FGF signaling pathway, and four orthologs of Sprouty have been identified in mammals. In vivo analyses have revealed that Sprouty2 is associated with bone formation. However, the mechanism by which the Sprouty family controls bone formation has not been clarified...
September 16, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28921768/microrna-326-3p-ameliorates-high-glucose-and-ox-ldl-ic-induced-fibrotic-injury-in-renal-mesangial-cells-by-targeting-fc%C3%AE-riii
#12
Yiting Wang, Rui Zhang, Junlin Zhang, Fang Liu
AIM: To identify the regulatory relationship between miR-326-3p and FcγRIII, and to explore the involvement of miR-326-3p/FcγRIII/TGF-β/Smad signaling pathway in fibrotic injury, which was induced by the high glucose (HG) and oxidized low density lipoprotein immune complex (ox-LDL-IC) in mouse glomerular mesangial cells (GMCs) METHODS: Dual-luciferase reporter system and real time PCR (RT-PCR) were used to identify FcγRIII as a target gene of miR-326-3p. Lentiviral transduction was utilized to construct different expression of miR-326-3p in GMCs, which were divided into three groups: miR-326-3p mimics group (miR-326-3p group), miR-326-3p inhibitor group (miR-326-3p-inhibit group) and scramble control group (control group)...
September 17, 2017: Nephrology
https://www.readbyqxmd.com/read/28919027/macrolactin-f-inhibits-rankl-mediated-osteoclastogenesis-by-suppressing-akt-mapk-and-nfatc1-pathways-and-promotes-osteoblastogenesis-through-a-bmp-2-smad-akt-runx2-signaling-pathway
#13
Liang Li, Mahesh Sapkota, Ming Gao, Hyukjae Choi, Yunjo Soh
The balance between bone formation and bone resorption is maintained by osteoblasts and osteoclasts. In the current study, macrolactin F (MF) was investigated for novel biological activity on the receptor activator of nuclear factor-κB (NF-κB) ligand (RANKL)-induced osteoclastogenesis in primary bone marrow-derived macrophages (BMMs). We found that RANKL-induced osteoclast formation and differentiation from BMMs was significantly inhibited by MF in a dose-dependent manner without cytotoxicity. RANKL-induced F-actin ring formation and bone resorption activity in BMMs which was attenuated by MF...
September 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28918914/analysis-of-genomes-and-transcriptomes-of-hepatocellular-carcinomas-identifies-mutations-and-gene-expression-changes-in-the-transforming-growth-factor-beta-pathway-short-title-prognostic-significance-of-tgf-%C3%AE-signature-in-liver-cancer
#14
Jian Chen, Sobia Zaidi, Shuyun Rao, Jiun-Sheng Chen, Liem Phan, Patrizia Farci, Xiaoping Su, Kirti Shetty, Jon White, Fausto Zamboni, Xifeng Wu, Asif Rashid, Nagarajan Pattabiraman, Raja Mazumder, Anelia Horvath, Ray-Chang Wu, Shulin Li, Cuiying Xiao, Chu-Xia Deng, David A Wheeler, Bibhuti Mishra, Rehan Akbani, Lopa Mishra
BACKGROUND & AIMS: Development of hepatocellular carcinoma (HCC) is associated with alterations in the transforming growth factor beta (TGFβ) signaling pathway, which regulates liver inflammation and can have tumor suppressor or promoter activities. Little is known about the roles of specific members of this pathway at specific of HCC development. We took an integrated approach to identify and validate the effects of changes in this pathway in HCC and identify therapeutic targets. METHODS: We performed transcriptome analyses for a total of 488 HCCs that include data from The Cancer Genome Atlas...
September 14, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28918026/anti-fibrotic-effects-of-synthetic-oligodeoxynucleotide-for-tgf-%C3%AE-1-and-smad-in-an-animal-model-of-liver-cirrhosis
#15
Jung-Yeon Kim, Hyun-Jin An, Woon-Hae Kim, Mi-Gyeong Gwon, Hyemin Gu, Yoon-Yub Park, Kwan-Kyu Park
Liver fibrosis is characterized by changes in tissue architecture and extracellular matrix composition. Liver fibrosis affects not only hepatocytes but also the non-parenchymal cells such as hepatic stellate cells (HSCs), which are essential for maintaining an intact liver structure and function. Transforming growth factor β1 (TGF-β1) is a multifunctional cytokine that induces liver fibrosis through activation of Smad signaling pathways. To improve a new therapeutic approach, synthetic TGF-β1/Smad oligodeoxynucleotide (ODN) was used to suppress both TGF-β1 expression and Smad transcription factor using a combination of antisense ODN and decoy ODN...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28915589/casticin-attenuates-liver-fibrosis-and-hepatic-stellate-cell-activation-by-blocking-tgf-%C3%AE-smad-signaling-pathway
#16
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/28915498/tantalum-coated-pedicle-screws-enhance-implant-integration
#17
Liang-Yu Shi, An Wang, Fa-Zhi Zang, Jian-Xi Wang, Xian-Wei Pan, Hua-Jiang Chen
Because titanium alloy (Ti) has the natural advantage of a low elastic modulus, it has become the most commonly used material for the manufacturing of pedicle screws. However, its poor shear strength and osteogenic ability are undesirable properties. The superior osteoinductivity demonstrated by tantalum (Ta) in oral and maxillofacial surgery and joint surgery leads us to assume that the tantalum-coated pedicle screws may have better osteogenic properties and bone anchoring strength. To verify this hypothesis, MC3T3-E1 cells and human mesenchymal stem cells (hBMSCs) were seeded on the surface of Ta and Ti disks to compare the effects of two different metals on cell adhesion, proliferation, and differentiation...
September 7, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28915063/twist1-in-hypoxia-induced-pulmonary-hypertension-through-tgf%C3%AE-smad-signaling
#18
Tadanori Mammoto, Megan Muyleart, G Ganesh Konduri, Akiko Mammoto
Pulmonary hypertension (PH) is a devastating pulmonary vascular disease characterized by aberrant muscularization of the normally non-muscularized distal pulmonary arterioles. The expression of the transcription factor, Twist1, increases in the lungs of pulmonary arterial hypertension patients. However, the mechanisms by which Twist1 controls the pathogenesis of PH remain unclear. It is becoming clear that endothelial-to-mesenchymal transition (EndMT) contributes to various vascular pathologies including PH; Twist1 is known to mediate EndMT...
September 15, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28912269/glycoprotein-a-repetitions-predominant-garp-positively-regulates-transforming-growth-factor-tgf-%C3%AE-3-and-is-essential-for-mouse-palatogenesis
#19
Bill X Wu, Anqi Li, Liming Lei, Satoshi Kaneko, Caroline Wallace, Xue Li, Zihai Li
Glycoprotein A repetitions predominant (GARP) (encoded by the Lrrc32 gene) plays important roles in cell-surface docking and activation of TGF-beta. However, GARP role in organ development in mammalian system is unclear. To determine the function of GARP in vivo, we generated a GARP-KO mouse model. Unexpectedly, the GARP-KO mice died within 24 hours after birth and exhibited defective palatogenesis without apparent abnormalities in other major organs. Furthermore, we observed decreased apoptosis and SMAD2 phosphorylation in the medial edge epithelial (MEE) cells of the palatal shelf of GARP-KO embryos at day 14...
September 14, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28905939/curcumin-administration-suppresses-collagen-synthesis-in-the-hearts-of-rats-with-experimental-diabetes
#20
Shuang Guo, Xiang-Wen Meng, Xiao-Song Yang, Xiu-Fen Liu, Chang-Han Ou-Yang, Chao Liu
Cardiac fibrosis is considered the initial change of diabetic cardiomyopathy (DCM). We have shown that curcumin alleviates collagen deposition in DCM, but the mechanism remains unknown. In this study we sought to investigate the effects of curcumin on cardiac fibrosis in vivo and in vitro and to elucidate the underlying mechanisms. Experimental diabetes was induced in rats by injection of low-dose streptozotocin (STZ) combined with high energy diet. The rats were orally treated with curcumin (300 mg·kg(-1)·d(-1)) for 16 weeks...
September 14, 2017: Acta Pharmacologica Sinica
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