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KLF15

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https://www.readbyqxmd.com/read/28481224/intermittent-glucocorticoid-steroid-dosing-enhances-muscle-repair-without-eliciting-muscle-atrophy
#1
Mattia Quattrocelli, David Y Barefield, James L Warner, Andy H Vo, Michele Hadhazy, Judy U Earley, Alexis R Demonbreun, Elizabeth M McNally
Glucocorticoid steroids such as prednisone are prescribed for chronic muscle conditions such as Duchenne muscular dystrophy, where their use is associated with prolonged ambulation. The positive effects of chronic steroid treatment in muscular dystrophy are paradoxical because these steroids are also known to trigger muscle atrophy. Chronic steroid use usually involves once-daily dosing, although weekly dosing in children has been suggested for its reduced side effects on behavior. In this work, we tested steroid dosing in mice and found that a single pulse of glucocorticoid steroids improved sarcolemmal repair through increased expression of annexins A1 and A6, which mediate myofiber repair...
May 8, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28465484/sirt3-klf15-signaling-ameliorates-kidney-injury-induced-by-hypertension
#2
Na Li, Jie Zhang, Xuefang Yan, Chen Zhang, Hui Liu, Xiaolan Shan, Jingyuan Li, Yi Yang, Chengmin Huang, Peng Zhang, Yun Zhang, Peili Bu
Renal fibrosis participates in the progression of hypertension-induced kidney injury. The effect of SIRT3, a member of the NAD+-dependent deacetylase family, in hypertensive nephropathy remains unclear. In this study, we found that SIRT3 was reduced after angiotensin II (AngII) treatment both in vivo and in vitro. Furthermore, SIRT3-knockout mice aggravated hypertension-induced renal dysfunction and renal fibrosis via chronic AngII infusion (2000 ng/kg per minute for 42 days). On the contrary, SIRT3-overexpression mice attenuated AngII-induced kidney injury compared with wild-type mice...
April 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421457/klf15-inhibits-cell-proliferation-in-gastric-cancer-cells-via-up-regulating-cdkn1a-p21-and-cdkn1c-p57-expression
#3
Chongqi Sun, Pei Ma, Yanfen Wang, Weitao Liu, Qinnan Chen, Yutian Pan, Chenhui Zhao, Yingchen Qian, Jie Liu, Wei Li, Yongqian Shu
BACKGROUND: Krüppel-like factors (KLFs) have been identified in multi-cancers and act as oncogenes or tumor suppressors. The function of KLF15, one member of KLFs, has not been well elucidated, especially in gastric cancer (GC). AIMS: This study was designed to investigate the prognostic value and biological functions of KLF15 in GC. METHODS: KLF15 protein expression in GC patients was evaluated by immunohistochemistry assays in 50 paired GC tissues and adjacent normal tissues, and correlations between KLF15 expression and clinicopathological characteristics and prognosis were analyzed...
April 18, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28400202/genetic-variation-in-kruppel-like-factor-15-is-associated-with-left-ventricular-hypertrophy-in-patients-with-type-2-diabetes-discovery-and-replication-cohorts
#4
Sheila K Patel, Bryan Wai, Chim C Lang, Daniel Levin, Colin N A Palmer, Helen M Parry, Elena Velkoska, Stephen B Harrap, Piyush M Srivastava, Louise M Burrell
Left ventricular (LV) hypertrophy (LVH) is a heritable trait that is common in type 2 diabetes and is associated with the development of heart failure. The transcriptional factor Kruppel like factor 15 (KLF15) is expressed in the heart and acts as a repressor of cardiac hypertrophy in experimental models. This study investigated if KLF15 gene variants were associated with LVH in type 2 diabetes. In stage 1 of a 2-stage approach, patients with type 2 diabetes and no known cardiac disease were prospectively recruited for a transthoracic echocardiographic assessment (Melbourne Diabetes Heart Cohort) (n=318) and genotyping of two KLF15 single nucleotide polymorphisms (SNPs) (rs9838915, rs6796325)...
April 2017: EBioMedicine
https://www.readbyqxmd.com/read/28388563/benzene-and-its-metabolite-decreases-cell-proliferation-via-lncrna-obfc2a-mediated-anti-proliferation-effect-involving-notch1-and-klf15
#5
Pengling Sun, Jing Wang, Xiaoli Guo, Yujiao Chen, Caihong Xing, Ai Gao
LncRNA has been considered to play a crucial role in the progression of several diseases by affecting cell proliferation. However, its role in benzene toxicity remains unclear. Our study showed that the expression of lncRNA-OBFC2A increased accompanied with the change of cell proliferation related-genes in benzene-exposed workers. In vitro experiments, 1,4-Benzoquinone dose-dependently inhibited cell proliferation and simultaneously caused the decrease of NOTCH1 expression and the increase of KLF15 in AHH-1 cell lines...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28375666/glucocorticoid-receptor-chip-seq-identifies-plcd1-as-a-klf15-target-that-represses-airway-smooth-muscle-hypertrophy
#6
Sarah K Sasse, Vineela Kadiyala, Thomas Danhorn, Reynold A Panettieri, Tzu L Phang, Anthony N Gerber
Glucocorticoids exert important therapeutic effects on airway smooth muscle (ASM), yet few direct targets of glucocorticoid signaling in ASM have been definitively identified. Here, we show that the transcription factor, KLF15, is directly induced by glucocorticoids in primary human ASM and that KLF15 represses ASM hypertrophy. We integrated transcriptome data from KLF15 overexpression with genome-wide analysis of RNA Polymerase II (RNAPII) and glucocorticoid receptor (GR) occupancy (i.e. ChIP-seq) to identify PLCD1 as both a KLF15-regulated gene and a novel repressor of ASM hypertrophy...
April 4, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28336438/klf15-protects-against-isoproterenol-induced-cardiac-hypertrophy-via-regulation-of-cell-death-and-inhibition-of-akt-mtor-signaling
#7
Li Gao, Yudong Guo, Xiaofeng Liu, Deya Shang, Yongjian Du
Increasing evidence indicate that the Krüppel-like factor KLF15, a member of Cys2/His2 zinc-finger DNA-binding proteins, attenuates cardiac hypertrophy. However, the role of KLF15 in cardiovascular system is largely unknown and the exact molecular mechanism of its protective function is not fully elucidated. In the present study, we established a mouse model of cardiac hypertrophy and found that KLF15 expression was down-regulated in hypertrophic hearts. To evaluate the roles of KLF15 in cardiac hypertrophy, we generated transgenic mice overexpressing KLF15 of KLF15 knockdown mice and subsequently induced cardiac hypertrophy...
May 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28320523/roles-of-fluid-shear-stress-and-retinoic-acid-in-the-differentiation-of-primary-cultured-human-podocytes
#8
Seung Hee Yang, Jin Woo Choi, Dongeun Huh, Hyung Ah Jo, Sejoong Kim, Chun Soo Lim, Jung Chan Lee, Hee Chan Kim, Hyug Moo Kwon, Chang Wook Jeong, Cheol Kwak, Kwon Wook Joo, Yon Su Kim, Dong Ki Kim
Due to the distinct features that distinguish immortalized podocyte cell lines from their in vivo counterparts, primary cultured human podocytes might be a superior cell model for glomerular disease studies. However, the podocyte de-differentiation that occurs in culture remains an unresolved problem. Here, we present a method to differentiate primary cultured podocytes using retinoic acid (RA) and fluid shear stress (FSS), which mimic the in vivo environment of the glomerulus. RA treatment induced changes in the cell shape of podocytes from a cobblestone-like morphology to an arborized configuration with enhanced mobility...
May 1, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28090143/acute-exercise-regulates-adipogenic-gene-expression-in-white-adipose-tissue
#9
Y Shen, H Zhou, W Jin, H J Lee
White adipose tissue expansion is associated with both hypertrophy and hyperplasia of adipocytes. Exercise training results in adipocyte hypotrophy by activating lipolysis, but it is poorly understood whether exercise regulates adipogenesis by altering adipogenic gene expression. The purpose of this study was to evaluate the effect of a single bout of swimming exercise on adipogenic gene expression in white adipose tissue (WAT). Male C57BL/6J mice were divided into two groups: a sedentary control group and a 120-minute swimming exercise group...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28064408/resveratrol-mediated-expression-of-klf15-in-the-ischemic-myocardium-is-associated-with-an-improved-cardiac-phenotype
#10
Russell G Rogers, Jeffrey S Otis
PURPOSE: Myocardial infarction results in physiological derangements that lead to structural and functional alterations to the myocardium. In addition, oxidative stress potentiates cardiac remodeling and drives disease progression. Unfortunately, treatment with antioxidants in clinical trials have failed to show any therapeutic benefits despite the positive results reported in animal studies, which warrants further investigation into their mechanism(s) of action. Accordingly, the aim of this study was to elucidate a previously unknown mechanism of action for the antioxidant, resveratrol, in the treatment of the ischemic heart...
February 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/27979415/mir-376a-promotion-of-proliferation-and-metastases-in-ovarian-cancer-potential-role-as-a-biomarker
#11
Liu Yang, Qing-Min Wei, Xin-Wen Zhang, Qiu Sheng, Xiao-Ting Yan
AIMS: Ovarian cancer is the fifth most deadly cancer in women, and is usually diagnosed too late. Exploring specific and sensitive biomarkers will be helpful to early detection and will improve the survival rates of ovarian cancer patients. MAIN METHODS: Realtime PCR was used to detect the expression of miR-376a. Wound healing and transwell assays were used to examined the migration and invasion abilities of ovarian cancer cells. Tumor xenograft experiments were employed to test the in vivo malignancy of ovarian cancer cells...
March 15, 2017: Life Sciences
https://www.readbyqxmd.com/read/27829312/cudc-907-promotes-bone-marrow-adipocytic-differentiation-through-inhibition-of-histone-deacetylase-and-regulation-of-cell-cycle
#12
Dalia Ali, Hassan Alshammari, Radhakrishnan Vishnubalaji, Elna Paul Chalisserry, Rimi Hamam, Musaad Alfayez, Moustapha Kassem, Abdullah Aldahmash, Nehad M Alajez
The role of bone marrow adipocytes (BMAs) in overall energy metabolism and their effects on bone mass are currently areas of intensive investigation. BMAs differentiate from bone marrow stromal cells (BMSCs); however, the molecular mechanisms regulating BMA differentiation are not fully understood. In this study, we investigated the effect of CUDC-907, identified by screening an epigenetic small-molecule library, on adipocytic differentiation of human BMSCs (hBMSCs) and determined its molecular mechanism of action...
November 9, 2016: Stem Cells and Development
https://www.readbyqxmd.com/read/27754253/os-36-04-kruppel-like-factor-15-is-associated-with-cardiac-hypertrophy-in-an-experimental-model-of-kidney-disease
#13
Sheila Patel, Elena Velkoska, Louise Burrell
OBJECTIVE: Left ventricular hypertrophy (LVH) is prevalent in chronic kidney disease (CKD) and a major cause of cardiovascular morbidity and mortality. Treatment of LVH in CKD is based on blood pressure control. The Kruppel like factor 15 (KLF15) is expressed in the heart and acts as a repressor of cardiac hypertrophy and fibrosis. The role of cardiac KLF15 in the development of LVH in rats with CKD secondary to subtotal nephrectomy (STNx) or the effects of ACE inhibition on KLF15 levels has not been addressed previously...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754056/os-15-04-mineralocorticoid-receptor-antagonists-target-endogenous-repressor-of-hypertrophy
#14
Anastasia Mihailidou, Anthony Ashton
OBJECTIVE: Myocardial infarction (MI) continues to be a major burden of disease, despite rapid reperfusion interventions. Reperfusion of ischemic hearts (reperfusion injury) induces free radical generation, activation of early stress responses and apoptosis, which contributes to ventricular remodeling and dysfunction, which may lead to developing heart failure. Mineralocorticoid receptor (MR) antagonists have been shown clinically to reduce blood pressure, particularly in resistant hypertension, and substantially increase survival in heart failure...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754034/yia-03-10-endothelial-kruppel-like-factor-15-a-novel-target-for-the-treatment-of-pulmonary-hypertension
#15
Deepesh Pandey, Daijiro Tori, Yohei Nomura, Dan Berkowitz, Lewis Romer
OBJECTIVE: Kruppel Like Factor 15 (KLF15) has recently been shown to be critical for activation of proinflammatory processes in vascular smooth muscle and atherogenesis. Although KLF15 is abundantly expressed in vascular endothelium there is a significant lack of knowledge regarding the role of KLF15 in the regulation of vascular endothelial function. Here we tested the hypothesis that KLF15 is a critical regulator of Arg2 transcription in hypoxia exposed human pulmonary microvascular endothelial cells (HPMEC) and that it plays critical role in pathogenesis of pulmonary hypertension (PHTN)...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27649272/heat-stress-modulates-both-anabolic-and-catabolic-signaling-pathways-preventing-dexamethasone-induced-muscle-atrophy-in-vitro
#16
Wakako Tsuchida, Masahiro Iwata, Takayuki Akimoto, Shingo Matsuo, Yuji Asai, Shigeyuki Suzuki
It is generally recognized that synthetic glucocorticoids induce skeletal muscle weakness, and endogenous glucocorticoid levels increase in patients with muscle atrophy. It is reported that heat stress attenuates glucocorticoid-induced muscle atrophy; however, the mechanisms involved are unknown. Therefore, we examined the mechanisms underlying the effects of heat stress against glucocorticoid-induced muscle atrophy using C2C12 myotubes in vitro, focusing on expression of key molecules and signaling pathways involved in regulating protein synthesis and degradation...
March 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27643218/os-36-04-kruppel-like-factor-15-is-associated-with-cardiac-hypertrophy-in-an-experimental-model-of-kidney-disease
#17
Sheila Patel, Elena Velkoska, Louise Burrell
OBJECTIVE: Left ventricular hypertrophy (LVH) is prevalent in chronic kidney disease (CKD) and a major cause of cardiovascular morbidity and mortality. Treatment of LVH in CKD is based on blood pressure control. The Kruppel like factor 15 (KLF15) is expressed in the heart and acts as a repressor of cardiac hypertrophy and fibrosis. The role of cardiac KLF15 in the development of LVH in rats with CKD secondary to subtotal nephrectomy (STNx) or the effects of ACE inhibition on KLF15 levels has not been addressed previously...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27642976/os-15-04-mineralocorticoid-receptor-antagonists-target-endogenous-repressor-of-hypertrophy
#18
Anastasia Mihailidou, Anthony Ashton
OBJECTIVE: Myocardial infarction (MI) continues to be a major burden of disease, despite rapid reperfusion interventions. Reperfusion of ischemic hearts (reperfusion injury) induces free radical generation, activation of early stress responses and apoptosis, which contributes to ventricular remodeling and dysfunction, which may lead to developing heart failure. Mineralocorticoid receptor (MR) antagonists have been shown clinically to reduce blood pressure, particularly in resistant hypertension, and substantially increase survival in heart failure...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27642952/yia-03-10-endothelial-kruppel-like-factor-15-a-novel-target-for-the-treatment-of-pulmonary-hypertension
#19
Deepesh Pandey, Daijiro Tori, Yohei Nomura, Dan Berkowitz, Lewis Romer
OBJECTIVE: Kruppel Like Factor 15 (KLF15) has recently been shown to be critical for activation of proinflammatory processes in vascular smooth muscle and atherogenesis. Although KLF15 is abundantly expressed in vascular endothelium there is a significant lack of knowledge regarding the role of KLF15 in the regulation of vascular endothelial function. Here we tested the hypothesis that KLF15 is a critical regulator of Arg2 transcription in hypoxia exposed human pulmonary microvascular endothelial cells (HPMEC) and that it plays critical role in pathogenesis of pulmonary hypertension (PHTN)...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27629257/mir-4262-promotes-proliferation-and-invasion-of-human-breast-cancer-cells-through-directly-targeting-klf6-and-klf15
#20
Ke Wang, Yu Ren, Yang Liu, Jian Zhang, Jian-Jun He
miRNAs have been shown to be involved in breast cancer growth and progression. miR-4262 is a potential tumor promoter in human cancers. In this study, we first investigated the role of miR-4262 in the proliferation and invasion of human breast cancer cells. Our results showed that, compared with the adjacent tissues and MCF-10A normal breast epithelial cells, miR-4262 was markedly increased in the breast cancer tissues and five cell lines, including MDA-MB-231, MDA-MB-468, MDA-MB-435, SKBR3, and MCF-7. Then the miR-4262 mimic or oligo anta-miR-4262 was transfected into MDA-MB-231 and MCF-7 breast cancer cell lines...
January 26, 2017: Oncology Research
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