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Follistatin

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https://www.readbyqxmd.com/read/28913617/fingolimod-induces-neuronal-specific-gene-expression-with-potential-neuroprotective-outcomes-in-maturing-neuronal-progenitor-cells-exposed-to-hiv
#1
Rebeca Geffin, Ricardo Martinez, Alicia de Las Pozas, Biju Issac, Micheline McCarthy
Fingolimod (FTY720), a structural analogue of sphingosine, targets sphingosine-1-phosphate receptor signaling and is currently an immunomodulatory therapy for multiple sclerosis. Fingolimod accesses the central nervous system (CNS) where its active metabolite, fingolimod phosphate (FTY720-P), has pleotropic neuroprotective effects in an inflammatory microenvironment. To investigate potential neuronal-specific mechanisms of fingolimod neuroprotection, we cultured the human neuronal progenitor cell line, hNP1, in differentiation medium supplemented with HIV- or Mock-infected supernatants, with or without FTY720-P...
September 14, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28912572/follistatin-n-terminus-differentially-regulates-muscle-size-and-fat-in-vivo
#2
Hui Zheng, Chunping Qiao, Ruhang Tang, Jianbin Li, Karen Bulaklak, Zhenhua Huang, Chunxia Zhao, Yi Dai, Juan Li, Xiao Xiao
Delivery of follistatin (FST) represents a promising strategy for both muscular dystrophies and diabetes, as FST is a robust antagonist of myostatin and activin, which are critical regulators of skeletal muscle and adipose tissues. FST is a multi-domain protein, and deciphering the function of different domains will facilitate novel designs for FST-based therapy. Our study aims to investigate the role of the N-terminal domain (ND) of FST in regulating muscle and fat mass in vivo. Different FST constructs were created and packaged into the adeno-associated viral vector (AAV)...
September 15, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28901425/knockdown-of-fstl1-attenuates-hepatic-stellate-cell-activation-through-the-tgf%C3%A2-%C3%AE-1-smad3-signaling-pathway
#3
Hongye Shang, Xiangjin Liu, Hui Guo
Follistatin‑like 1 (Fstl1) is a secreted glycoprotein that belongs to the follistatin and SPARC (secreted protein, acidic and rich in cysteine) families and was identified to serve a critical role in lung fibrosis. However, the role of Fstl1 in liver fibrosis remains undefined. Therefore, the aim of the present study was to investigate the role of Fstl1 in liver fibrosis. The results indicated that Fstl1 was highly expressed in human hepatic fibrosis tissues and activated hepatic stellate cells (HSCs). Furthermore, knockdown of Fstl1effectively suppressed HSC proliferation and the protein expression levels of α‑SMA and collagen I in transforming growth factor (TGF)‑β1‑treated HSCs...
September 8, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28898977/from-the-cover-metabolomics-reveals-a-role-of-betaine-in-prenatal-dbp-exposure-induced-epigenetic-transgenerational-failure-of-spermatogenesis-in-rats
#4
Beilei Yuan, Wei Wu, Minjian Chen, Hao Gu, Qiuqin Tang, Dan Guo, Ting Chen, Yiqiu Chen, Chuncheng Lu, Ling Song, Yankai Xia, Daozhen Chen, Virender K Rehan, Jiahao Sha, Xinru Wang
There is increasing concern that early-life exposure to endocrine disruptors affects male offspring reproduction. However, whether di-n-butyl phthalate (DBP), a widely used endocrine disruptor, has transgenerational effects and, if so, the exact underlying molecular mechanisms involved remain unknown. In our study, 5 of time-mated pregnant SD rats were exposed to 0 and 500 mg/kg DBP with corn oil as the vehicle via oral gavage from embryonic days (E8-E14). Epigenetic and metabolomic of testis were analyzed after post-natal 60 days...
August 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28888087/modulation-of-transforming-growth-factor-%C3%AE-follistatin-signaling-and-white-adipose-browning-therapeutic-implications-for-obesity-related-disorders
#5
REVIEW
Shehla Pervin, Vineeta Singh, Alexandria Tucker, Javier Collazo, Rajan Singh
Obesity is a major risk factor for the development of diabetes, insulin resistance, dyslipidemia, cardiovascular disease and other related metabolic conditions. Obesity develops from perturbations in overall cellular bioenergetics when energy intake chronically exceeds total energy expenditure. Lifestyle interventions based on reducing total energy uptake and increasing activities including exercise have proved ineffective in the prevention and treatment of obesity because of poor adherence to such interventions for an extended period of time...
September 9, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28883808/grass-carp-follisatin-molecular-cloning-functional-characterization-dopamine-d1-regulation-at-pituitary-level-and-implication-in-growth-hormone-regulation
#6
Roger S K Fung, Bai Jin, Mulan He, Karen W Y Yuen, Anderson O L Wong
Activin is involved in pituitary hormone regulation and its pituitary actions can be nullified by local production of its binding protein follistatin. In our recent study with grass carp, local release of growth hormone (GH) was shown to induce activin expression at pituitary level, which in turn could exert an intrapituitary feedback to inhibit GH synthesis and secretion. To further examine the activin/follistatin system in the carp pituitary, grass carp follistatin was cloned and confirmed to be single-copy gene widely expressed at tissue level...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28883005/fstl1-promotes-metastasis-and-chemoresistance-in-esophageal-squamous-cell-carcinoma-through-nf%C3%AE%C2%BAb-bmp-signaling-crosstalk
#7
Marco Chi-Chung Lau, Kai-Yu Ng, Tin Lok Wong, Man Tong, Terence K Lee, Xiao-Yan Ming, Simon Law, Nikki P Lee, Annie Lm Cheung, Yan-Ru Qin, Kwok Wah Chan, Wen Ning, Xin Yuan Guan, Stephanie Ma
Esophageal squamous cell carcinoma (ESCC) has a generally poor prognosis and molecular markers to improve early detection and predict outcomes are greatly needed. Here we report that the BMP-binding follistatin-like protein FSTL1 is overexpressed in ESCCs where it correlates with poor overall survival. Genetic amplification of FSTL1 or chromosome 3q where it is located occurred frequently in ESCC, where FSTL1 copy number correlated positively with higher FSTL1 protein expression. Elevating FSTL1 levels by various means was sufficient to drive ESCC cell proliferation, clonogenicity, migration, invasion, self-renewal and cisplatin resistance in vitro and tumorigenicity and distant metastasis in vivo...
September 7, 2017: Cancer Research
https://www.readbyqxmd.com/read/28878391/identification-of-a-p53-target-cd137l-that-mediates-growth-suppression-and-immune-response-of-osteosarcoma-cells
#8
Yusuke Tsuda, Chizu Tanikawa, Takafumi Miyamoto, Makoto Hirata, Varalee Yodsurang, Yao-Zhong Zhang, Seiya Imoto, Rui Yamaguchi, Satoru Miyano, Hiroshi Takayanagi, Hirotaka Kawano, Hidewaki Nakagawa, Sakae Tanaka, Koichi Matsuda
p53 encodes a transcription factor that transactivates downstream target genes involved in tumour suppression. Although osteosarcoma frequently has p53 mutations, the role of p53 in osteosarcomagenesis is not fully understood. To explore p53-target genes comprehensively in calvarial bone and find out novel druggable p53 target genes for osteosarcoma, we performed RNA sequencing using the calvarial bone and 23 other tissues from p53 (+/+) and p53 (-/-) mice after radiation exposure. Of 23,813 genes, 69 genes were induced more than two-fold in irradiated p53 (+/+) calvarial bone, and 127 genes were repressed...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28852138/inhibition-of-gdf8-myostatin-accelerates-bone-regeneration-in-diabetes-mellitus-type-2
#9
Christoph Wallner, Henriette Jaurich, Johannes Maximilian Wagner, Mustafa Becerikli, Kamran Harati, Mehran Dadras, Marcus Lehnhardt, Björn Behr
Metabolic diseases like diabetes mellitus cause bone healing deficiencies. We found significant impairment of bone regeneration, osteogenic differentiation and proliferation in diabetic bone. Moreover recent studies suggest a highly underestimated importance of GDF8 (Myostatin) in bone metabolism. Our goal was to analyze the role of GDF8 as a regulator of osteogenic differentiation, proliferation and bone regeneration. We used a murine tibial defect model in diabetic (Lepr(db-/-)) mice. Myostatin-Inhibitor Follistatin was administered in tibial bony defects of diabetic mice...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28852126/decrease-of-fstl1-bmp4-smad-signaling-predicts-poor-prognosis-in-lung-adenocarcinoma-but-not-in-squamous-cell-carcinoma
#10
Jean Chiou, Chia-Yi Su, Yi-Hua Jan, Chih-Jen Yang, Ming-Shyan Huang, Yung-Luen Yu, Michael Hsiao
Follistatin-related protein 1 (FSTL1) plays a critical role in lung development through regulating BMP4-p-Smad1/5/8-Smad4 pathway. Regarding that many developmental pathways in embryogenesis are dysregulated in cancer, we aim to unravel the role of FSTL1-BMP4-Smad pathway in lung cancer. Our results showed low FSTL1 immunoexpression was significantly correlated with poor prognosis while patients with low BMP4 or low Smad4 immunoexpression showed a trend toward poor prognosis. When stratified by different histological types, low FSTL1, BMP4, and Smad4 expression retained their trends in predicting poor prognosis in lung adenocarcinoma (LUAD) but not in lung squamous cell carcinoma (SCC)...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28845753/follistatin-rescues-blastocyst-development-of-poor-quality-porcine-cumulus-oocyte-complexes-by-delaying-meiotic-resumption-with-decreased-cgmp
#11
Bo Myeong Lee, Ju Lan Chun, Ji Hye Lee, Eun Young Kim, Kang-Sun Park, Jin-Hee Lee, Bradford W Daigneault, George W Smith, Keun Jung Kim, Kyu-Tae Chang, Sang-Rae Lee, Sun-Uk Kim, Seon-A Choi, Kyung-Bon Lee, Min Kyu Kim
Mammalian oocytes resume maturation when removed from follicles and cultured in vitro. During folliculogenesis, oocytes are bathed in follicular fluid (FF), which provides an important and specialized microenvironment for oocyte competence. Follistatin (FST) is one component of FF that may play a role in oocyte maturation and embryo development. This study was conducted to examine possible effects of FST on porcine oocyte competence and embryo development. Exogenous FST in oocyte maturation medium for 22 or 44 hours did not improve nuclear maturation and had no effect on good quality cumulus-oocyte complexes (COCs)...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28845090/the-correlation-between-fstl1-expression-and-airway-remodeling-in-asthmatics
#12
Yahui Liu, Tian Liu, Jinxiang Wu, Tao Li, Xingai Jiao, Haiqing Zhang, Jiping Zhao, Junfei Wang, Lin Liu, Liuzhao Cao, Shuo Li, Jiawei Xu, Jianfeng Xu, Xiaohui Ma, Lei Yang, Liang Dong
BACKGROUND: Asthma is characterized by airway remodeling. Follistatin-like protein 1 (FSTL1) is an extracellular glycoprotein. Recent studies suggest that FSTL1 may participate in the pathogenesis of asthma. OBJECTIVES: To analyze the association between FSTL1 and some parameters and inspect the role of FSTL1 in asthma. METHODS: We examined FSTL1 levels in 32 asthmatics and 25 controls. All subjects enrolled had routine blood tests, spirometry, and impulse oscillometry performed...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28835854/retinal-and-choroidal-angiogenesis-a-review-of-new-targets
#13
REVIEW
Thiago Cabral, Luiz Guilherme M Mello, Luiz H Lima, Júlia Polido, Caio V Regatieri, Rubens Belfort, Vinit B Mahajan
Retinal and choroidal neovascularization are a major cause of significant visual impairment, worldwide. Understanding the various factors involved in the accompanying physiopathology is vital for development of novel treatments, and most important, for preserving patient vision. The intraocular use of anti-vascular endothelial growth factor therapeutics has improved management of the retinal and choroidal neovascularization but some patients do not respond, suggesting other vascular mediators may also contribute to ocular angiogenesis...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28834227/hypoxia-induced-activin-a-diminishes-endothelial-cell-vasculogenic-activity
#14
Stephanie Merfeld-Clauss, Hongyan Lu, Xue Wu, Keith L March, Dmitry O Traktuev
Acute ischaemia causes a significant loss of blood vessels leading to deterioration of organ function. Multiple ischaemic conditions are associated with up-regulation of activin A, but its effect on endothelial cells (EC) in the context of hypoxia is understudied. This study evaluated the role of activin A in vasculogenesis in hypoxia. An in vitro vasculogenesis model, in which EC were cocultured with adipose stromal cells (ASC), was used. Incubation of cocultures at 0.5% oxygen led to decrease in EC survival and vessel density...
August 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28827448/egf-hijacks-mir-198-fstl1-wound-healing-switch-and-steers-a-two-pronged-pathway-toward-metastasis
#15
Gopinath M Sundaram, Hisyam M Ismail, Mohsin Bashir, Manish Muhuri, Candida Vaz, Srikanth Nama, Ghim Siong Ow, Ivshina Anna Vladimirovna, Rajkumar Ramalingam, Brian Burke, Vivek Tanavde, Vladimir Kuznetsov, E Birgitte Lane, Prabha Sampath
Epithelial carcinomas are well known to activate a prolonged wound-healing program that promotes malignant transformation. Wound closure requires the activation of keratinocyte migration via a dual-state molecular switch. This switch involves production of either the anti-migratory microRNA miR-198 or the pro-migratory follistatin-like 1 (FSTL1) protein from a single transcript; miR-198 expression in healthy skin is down-regulated in favor of FSTL1 upon wounding, which enhances keratinocyte migration and promotes re-epithelialization...
August 21, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28826313/effect-of-omega-3-polyunsaturated-fatty-acids-supplementation-on-body-composition-and-circulating-levels-of-follistatin-like-1-in-males-with-coronary-artery-disease-a-randomized-double-blind-clinical-trial
#16
Shirin Jafari Salim, Shahab Alizadeh, Mahmoud Djalali, Ebrahim Nematipour, Mohammad Hassan Javanbakht
Adipokines are mediators of body composition and are involved in obesity-related complications such as cardiovascular disease. Omega-3 supplementation has not been studied in the setting of body composition and follistatin-like 1 (FSTL1) levels in patients with coronary artery disease (CAD). This study aimed to investigate the effect of omega-3 polyunsaturated fatty acid (ω-3 PUFA) supplementation on body composition indices and serum levels of FSTL1 in CAD patients. A total of 42 male (aged 45-65 years) subjects with angiographically confirmed CAD were included in this randomized, double-blind, placebo-controlled trial study...
August 1, 2017: American Journal of Men's Health
https://www.readbyqxmd.com/read/28810121/comparative-proteomic-and-transcriptomic-analysis-of-follistatin-induced-skeletal-muscle-hypertrophy
#17
Caroline Barbé, Fabrice Bray, Marine Gueugneau, Stéphanie Devassine, Pascale Lause, Caroline Tokarski, Christian Rolando, Jean-Paul Thissen
Skeletal muscle, the most abundant body's tissue, plays vital roles in locomotion and metabolism. Myostatin is a negative regulator of skeletal muscle mass. In addition to increase muscle mass, Myostatin inhibition impacts on muscle contractility and energy metabolism. To decipher the mechanisms of action of the Myostatin inhibitors, we used proteomic and transcriptomic approaches to investigate the changes induced in skeletal muscles of transgenic mice overexpressing Follistatin, a physiological Myostatin inhibitor...
August 15, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28793908/transcriptomic-analysis-comparing-mouse-strains-with-extreme-total-lung-capacities-identifies-novel-candidate-genes-for-pulmonary-function
#18
Leema George, Ankita Mitra, Tania A Thimraj, Martin Irmler, Sangeetha Vishweswaraiah, Lars Lunding, Dorothea Hühn, Alicia Madurga, Johannes Beckers, Heinz Fehrenbach, Swapna Upadhyay, Holger Schulz, George D Leikauf, Koustav Ganguly
BACKGROUND: Failure to attain peak lung function by early adulthood is a risk factor for chronic lung diseases. Previously, we reported that C3H/HeJ mice have about twice total lung capacity (TLC) compared to JF1/MsJ mice. We identified seven lung function quantitative trait loci (QTL: Lfnq1-Lfnq7) in backcross/intercross mice derived from these inbred strains. We further demonstrated, superoxide dismutase 3, extracellular (Sod3), Kit oncogene (Kit) and secreted phosphoprotein 1 (Spp1) located on these Lfnqs as lung function determinants...
August 9, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28765894/follistatin-like-protein-1-increases-transepithelial-resistance-in-kidney-epithelial-cells-through-akt-signaling
#19
Fei Chen, Qiang Hu, Huihui Huang, Binbin Chen, Yin Xia, Wenjing Liu
Tight junctions are intercellular junctional structures that control paracellular permeability across epithelial cell sheets, and serve as a barrier to the intramembranic diffusion of components between apical and basolateral cell membrane domains. Follistatin‑like protein 1 (FSTL1) has been reported to promote cellular metabolism and survival. FSTL1 has been revealed to be highly expressed in adult kidney tissues, and high FSTL1 levels have been reported in mouse and human serum samples; however, the roles of FSTL1 in the regulation of kidney function remain to be elucidated...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28762604/tmeff2-shedding-is-regulated-by-oxidative-stress-and-mediated-by-adams-and-transmembrane-serine-proteases-implicated-in-prostate-cancer
#20
Katarzyna Gaweł-Bęben, Nazim Ali, Vincent Ellis, Gloria Velasco, Zaruhi Poghosyan, Ann Ager, Vera Knäuper
TMEFF2 is a type I transmembrane protein with two follistatin (FS) and one EGF-like domain over-expressed in prostate cancer; however its biological role in prostate cancer development and progression remains unclear, which may, at least in part, be explained by its proteolytic processing. The extracellular part of TMEFF2 (TMEFF2-ECD) is cleaved by ADAM17 and the membrane-retained fragment is further processed by the gamma-secretase complex. TMEFF2 shedding is increased with cell crowding, a condition associated with the tumour microenvironment, which was mediated by oxidative stress signalling, requiring jun-kinase (JNK) activation...
August 1, 2017: Cell Biology International
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