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Peroxisome proliferator

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https://www.readbyqxmd.com/read/29031063/anticancer-properties-of-4-thiazolidinone-derivatives-depend-on-peroxisome-proliferator-activated-receptor-gamma-ppar%C3%AE
#1
Konrad A Szychowski, Marcin L Leja, Danylo V Kaminskyy, Anna P Kryshchyshyn, Urszula E Binduga, Oleh R Pinyazhko, Roman B Lesyk, Jakub Tobiasz, Jan Gmiński
Peroxisome proliferator-activated receptors (PPARs) play an important role in numerous chronic diseases such as diabetes, obesity, atherosclerosis and cancer, and PPAR modulators are among the approved drugs and drug-candidates for their treatment. The aim of this study was to elucidate the involvement of PPARs in the mechanism of cytotoxic and pro-apoptotic action of novel anticancer 4-thiazolidinone derivatives (Les-2194, Les-3377, Les-3640) and approved 4-thiazolidinones (Rosiglitazone, Pioglitazone) towards the human squamous carcinoma (SCC-15) cell line...
September 30, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29028772/heme-oxygenase-1-protects-the-liver-from-septic-injury-by-modulating-tlr4-mediated-mitochondrial-quality-control-in-mice
#2
Jin-Sook Park, Hyo-Sun Choi, So-Yeon Yim, Sun-Mee Lee
Mitochondrial dysfunction is involved in the pathogenesis of sepsis-induced multiple organ dysfunction syndrome (MODS). Mitochondrial quality control (QC) is characterized by self-recovering mitochondrial damage through mitochondrial biogenesis, mitophagy, and fission/fusion. Heme oxygenase (HO)-1 acts as a signaling molecule to modulate inflammation. The present study elucidated the cytoprotective mechanisms of HO-1 in sepsis, particularly focusing on toll-like receptor (TLR)4-mediated mitochondrial QC. Mice were subjected to sepsis by cecal ligation and puncture (CLP)...
October 12, 2017: Shock
https://www.readbyqxmd.com/read/29027424/-research-progress-on-therapeutic-targets-of-active-components-in-chinese-herbs-for-treatment-of-nonalcoholic-fatty-liver-disease
#3
REVIEW
Yu-Ting Pan, Fang-Yuan Xu, Xi-Zhong Yu, Wen-Bin Shang
Nonalcoholic fatty liver disease(NAFLD) is a kind of metabolic liver injury, which is closely associated with insulin resistance and genetic susceptibility. Traditional Chinese herbs used in the treatment of nonalcoholic fatty liver disease are widely investigated in recent years. A series of recent studies show that the effects of the active components in traditional Chinese herbs on NAFLD are associated with activating AMPK signaling pathway, improving insulin resistance, modulating the activity and expression of peroxisome proliferator-activated receptor γ, antioxidant and anti-inflammatory activities and regulating intestinal flora...
March 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29027256/integrated-in-silico-and-in-vivo-approaches-to-investigate-effects-of-bde-99-mediated-by-the-nuclear-receptors-on-developing-zebrafish
#4
Li Zhang, Yaru Jin, Zhihua Han, Hongling Liu, Laihao Shi, Xiaoxue Hua, Jon A Doering, Song Tang, John P Giesy, Hongxia Yu
BDE-99 is one of the most abundant PBDEs, which due to its potential persistence and bioaccumulation occurs in aquatic wildlife. Previous studies in mammals have shown that BDE-99 affected development and disrupted certain endocrine functions through signaling pathways mediated by nuclear receptors (NRs). However, fewer studies have investigated the potential of BDE-99 to interact with NRs in aquatic vertebrates, such as fish. In the present study, interactions between BDE-99 and NRs were investigated by use of in silico and in vivo approaches...
October 12, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29026721/expression-of-the-genes-for-peroxisome-proliferator-activated-receptor-%C3%AE-cyclooxygenase-2-and-proinflammatory-cytokines-in-granulosa-cells-from-women-with-polycystic-ovary-syndrome
#5
Joong Yeup Lee, Jin Cheol Tae, Chung Hyon Kim, Doyeong Hwang, Ki Chul Kim, Chang Suk Suh, Seok Hyun Kim
OBJECTIVE: To identify differences in the expression of the genes for peroxisome proliferator-activated receptor (PPAR)-γ, cyclooxygenase (COX)-2, and the proinflammatory cytokines interleukin (IL)-6 and tumor necrosis factor (TNF)-α in granulosa cells (GCs) from polycystic ovary syndrome (PCOS) patients and controls undergoing controlled ovarian stimulation. METHODS: Nine patients with PCOS and six controls were enrolled in this study. On the day of oocyte retrieval, GCs were collected from pooled follicular fluid...
September 2017: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/29025280/effects-of-prenatal-ppar-%C3%AE-agonist-rosiglitazone-exposure-on-rat-hippocampus-development-in-a-time-dependent-manner-a-stereological-and-histopathological-study
#6
D Sağır, B Eren, B D Yılmaz, Z Eren, O N Keleş, A B Gökçe
Rosiglitazone is in the thiazolidinedione class of drugs used in the treatment of type 2 diabetes mellitus. It works as an insulin sensitizer by binding to the peroxisome proliferator-activated receptor gamma. We investigated the effects of prenatally administered rosiglitazone on pyramidal cell numbers and morphologies in the hippocampus at postnatal period using histochemical and stereological techniques, congenital morphological properties and the number of offspring in rats. Eighteen female rats were grouped into control (C), low-dose rosiglitazone (LDR) and high-dose rosiglitazone (HDR)...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29024782/dysregulation-of-%C3%AE-4-3-oxosteroid-5%C3%AE-reductase-in-diabetic-patients-implications-and-mechanisms
#7
Leila Valanejad, Mwlod Ghareeb, Stephanie Shiffka, Christina Nadolny, Yuan Chen, Liangran Guo, Ruchi Verma, Sangmin You, Fatemeh Akhlaghi, Ruitang Deng
Aldo-keto reductase family 1 member D1 (AKR1D1) is a Δ(4)-3-oxosteroid 5β-reductase required for bile acid synthesis and steroid hormone metabolism. Both bile acids and steroid hormones, especially glucocorticoids, play important roles in regulating body metabolism and energy expenditure. Currently, our understanding on AKR1D1 regulation and its roles in metabolic diseases is limited. We found that AKR1D1 expression was markedly repressed in diabetic patients. Consistent with repressed AKR1D1 expression, hepatic bile acids were significantly reduced in diabetic patients...
October 9, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29024521/role-of-peroxisome-proliferator-activated-receptor-ppar%C3%AE-in-metabolic-disorders-in-sga-with-catch-up-growth
#8
Qiong-Xia Lian, Hong-Zhu Deng, Kai-Yun Chen, Hong Deng
OBJECTIVE: Abnormal fat metabolism is a major disorder in adults who were small for gestational age (SGA). Peroxisome prolferator-activated receptor (PPARγ) participates in adipocyte differentiation and the regulation of lipid metabolism. This study explored the role of PPARγ in the regulation of fat catch-up growth (CUG) and the lipid metabolism of SGA individuals. METHODS: The CUG-SGA rats were treated with pioglitazone. The weight of the visceral adipose tissue, serum lipid levels, and PPARγ expression in the visceral adipose tissue were detected at 4, 8, and 12 weeks of age...
October 11, 2017: Obesity
https://www.readbyqxmd.com/read/29022912/tenomodulin-is-essential-for-prevention-of-adipocyte-accumulation-and-fibrovascular-scar-formation-during-early-tendon-healing
#9
Dasheng Lin, Paolo Alberton, Manuel Delgado Caceres, Elias Volkmer, Matthias Schieker, Denitsa Docheva
Tenomodulin (Tnmd) is the best-known mature marker for tendon and ligament lineage cells. It is important for tendon maturation, running performance and has key implications for the resident tendon stem/progenitor cells (TSPCs). However, its exact functions during the tendon repair process still remain elusive. Here, we established an Achilles tendon injury model in a Tnmd knockout (Tnmd(-/-)) mouse line. Detailed analyses showed not only a very different scar organization with a clearly reduced cell proliferation and expression of certain tendon-related genes, but also increased cell apoptosis, adipocyte and blood vessel accumulation in the early phase of tendon healing compared with their wild-type (WT) littermates...
October 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29022907/p38%C3%AE-mapk-antagonizing-jnk-to-control-the-hepatic-fat-accumulation-in-pediatric-patients-onset-intestinal-failure
#10
Yongtao Xiao, Jun Wang, Weihui Yan, Kejun Zhou, Yi Cao, Wei Cai
The p38α mitogen-activated protein kinase (MAPK) has been related to gluconeogenesis and lipid metabolism. However, the roles and related mechanisms of p38α MAPK in intestinal failure (IF)-associated liver steatosis remained poor understood. Here, our experimental evidence suggested that p38α MAPK significantly suppressed the fat accumulation in livers of IF patients mainly through two mechanisms. On the one hand, p38α MAPK increased hepatic bile acid (BA) synthesis by upregulating the expression of the rate-limiting enzyme cholesterol 7-α-hydroxylase (CYP7A1) and peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α), which in turn activated the transcription of the CYP7A1...
October 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29022212/effect-of-food-on-the-pharmacokinetics-of-saroglitazar-magnesium-a-novel-dual-ppar%C3%AE-%C3%AE-agonist-in-healthy-adult-subjects
#11
Maulik R Patel, Kevinkumar A Kansagra, Devang P Parikh, Deven V Parmar, Hardik B Patel, Mayur M Soni, Uday S Patil, Harilal V Patel, Jaimik A Patel, Swagat S Gujarathi, Krupi V Parmar, Nuggehally R Srinivas
BACKGROUND AND OBJECTIVE: Peroxisome proliferator-activated receptors (PPARs) have recently become a focus of interest for their important roles in glucose and lipid metabolism. In humans, PPARα activation causes a decrease in plasma triglyceride (TG) levels, enhancement of high-density lipoprotein cholesterol (HDL-C) and simultaneous enhancement of very-low-density lipoprotein (VLDL) lipolysis, whereas PPARγ agonists act as insulin sensitizers and improve insulin resistance, which is very useful in patients with type 2 diabetes mellitus (T2DM)...
October 11, 2017: Clinical Drug Investigation
https://www.readbyqxmd.com/read/29021504/ethanol-extracts-of-aster-yomena-kitam-honda-inhibit-adipogenesis-through-the-activation-of-the-ampk-signaling-pathway-in-3t3-l1-preadipocytes
#12
Min Ho Han, Ji-Suk Jeong, Jin-Woo Jeong, Sung Hyun Choi, Sung Ok Kim, Su Hyun Hong, Cheol Park, Byung Woo Kim, Yung Hyun Choi
The leaves of Aster yomena (Kitam.) Honda have long been used as a traditional herb for treating disorders including coughs, asthma, and insect bites. According to recent studies, A. yomena leaf extracts have several pharmacological properties, including anti-inflammatory, antioxidant, and anti-asthmatic activities. However, little information is available regarding their anti-obesity effect. In this study, we investigated the inhibitory effect of the ethanol extracts of A. yomena leaves (EEAY) on adipocyte differentiation and adipogenesis using 3T3-L1 preadipocytes...
October 11, 2017: Drug Discoveries & Therapeutics
https://www.readbyqxmd.com/read/29020973/the-%C3%AE-melanocyte-stimulating-hormone-peroxisome-proliferator-activated-receptor-%C3%AE-pathway-down-regulates-proliferation-in-melanoma-cell-lines
#13
Enrica Flori, Eleonora Rosati, Giorgia Cardinali, Daniela Kovacs, Barbara Bellei, Mauro Picardo, Vittoria Maresca
BACKGROUND: The α-Melanocyte Stimulating Hormone (αMSH)/Melanocortin-1 receptor (MC1R) interaction promotes melanogenesis through the cAMP/PKA pathway. The direct induction of this pathway by Forskolin (FSK) is also known to enhance melanocyte proliferation. αMSH acts as a mitogenic agent in melanocytes and its effect on proliferation of melanoma cells is less known. We previously identified the αMSH/Peroxisome Proliferator Activated Receptor (PPARγ) pathway as a new pathway on the B16-F10 mouse melanoma cell line...
October 11, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29020627/a-specific-chrebp-and-ppar%C3%AE-cross-talk-is-required-for-the-glucose-mediated-fgf21-response
#14
Alison Iroz, Alexandra Montagner, Fadila Benhamed, Françoise Levavasseur, Arnaud Polizzi, Elodie Anthony, Marion Régnier, Edwin Fouché, Céline Lukowicz, Michèle Cauzac, Emilie Tournier, Marcio Do-Cruzeiro, Martine Daujat-Chavanieu, Sabine Gerbal-Chalouin, Véronique Fauveau, Solenne Marmier, Anne-Françoise Burnol, Sandra Guilmeau, Yannick Lippi, Jean Girard, Walter Wahli, Renaud Dentin, Hervé Guillou, Catherine Postic
While the physiological benefits of the fibroblast growth factor 21 (FGF21) hepatokine are documented in response to fasting, little information is available on Fgf21 regulation in a glucose-overload context. We report that peroxisome-proliferator-activated receptor α (PPARα), a nuclear receptor of the fasting response, is required with the carbohydrate-sensitive transcription factor carbohydrate-responsive element-binding protein (ChREBP) to balance FGF21 glucose response. Microarray analysis indicated that only a few hepatic genes respond to fasting and glucose similarly to Fgf21...
October 10, 2017: Cell Reports
https://www.readbyqxmd.com/read/29020601/pioglitazone-a-ppar%C3%AE-agonist-reduces-nicotine-craving-in-humans-with-marginal-effects-on-abuse-potential
#15
Jermaine D Jones, Sandra D Comer, Verena E Metz, Jeanne M Manubay, Shanthi Mogali, Roberto Ciccocioppo, Suky Martinez, Mudassir Mumtaz, Adam Bisaga
Possibly through their actions upon glia, peroxisome proliferator-activated receptor agonists (PPAR) have been shown to alter the abuse potential of addictive drugs in several preclinical models. The current study extends this research into the human laboratory as the first clinical study into the effects of the PPAR gamma agonist, pioglitazone, on the abuse potential of nicotine. Heavy smokers were recruited for this 3-week study. Upon admission, participants were randomized to either active (45mg, n=14) or placebo (0mg, n=13) PIO maintenance conditions for the duration of the study...
October 8, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/29020055/danshen-protects-against-early-stage-alcoholic-liver-disease-in-mice-via-inducing-ppar%C3%AE-activation-and-subsequent-4-hne-degradation
#16
Lei Ding, Like Wo, Zhongyan Du, Lihua Tang, Zhenyuan Song, Xiaobing Dou
Alcoholic liver disease (ALD) is a type of chronic liver disease caused by long-term heavy ethanol consumption. Danshen is one of the most commonly used substances in traditional Chinese medicine and has been widely used for the treatment of various diseases, and most frequently, the ALD. The current study aims to determine the potential beneficial effect of Danshen administration on ALD and to clarify the underlying molecular mechanisms. Danshen administration improved liver pathologies of ALD, attenuated alcohol-induced increment of hepatic 4-Hydroxynonenal (4-HNE) formation, and prevented hepatic Peroxisome proliferators activated receptor alpha (PPARα) suppression in response to chronic alcohol consumption...
2017: PloS One
https://www.readbyqxmd.com/read/29018784/peroxisome-proliferator-activated-receptor-gamma-inhibits-the-activation-of-stat3-in-cerulein-stimulated-pancreatic-acinar-cells
#17
Kyung Don Ju, Joo Weon Lim, Hyeyoung Kim
Cerulein-induced pancreatitis is similar to human edematous pancreatitis, characterized by the dysregulation of digestive enzyme production, edema formation, and an infiltration of inflammatory cells into the pancreas. We previously showed that the Janus kinase 2 (JAK2)/STAT3 pathway mediates inflammatory signaling in cerulein-stimulated pancreatic acinar cells. PPAR-γ has been implicated in the regulation of inflammatory responses in several cells. In the present study, we investigated the role of PPAR-γ in cerulein-induced activation of JAK2/STAT3 in pancreatic acinar cells...
September 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/29018509/circrna_0046367-prevents-hepatoxicity-of-lipid-peroxidation-an-inhibitory-role-against-hepatic-steatosis
#18
Xing-Ya Guo, Jian-Neng Chen, Fang Sun, Yu-Qin Wang, Qin Pan, Jian-Gao Fan
Hepatic steatosis reflects the miRNA-related pathological disorder with triglyceride accumulation and lipid peroxidation, which leads to nonalcoholic steatohepatitis, liver fibrosis/cirrhosis, and even hepatocellular carcinoma. Circular RNA (circRNA)/miRNA interaction reveals a novel layer of epigenetic regulation, yet the miRNA-targeting circRNA remains uncertain in hepatic steatosis. Here, we uncover circRNA_0046367 to be endogenous modulator of miR-34a that underlies hepatic steatosis. In contrast to its expression loss during the hepatocellular steatosis in vivo and in vitro, circRNA_0046367 normalization abolished miR-34a's inhibitory effect on peroxisome proliferator-activated receptor α (PPARα) via blocking the miRNA/mRNA interaction with miRNA response elements (MREs)...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29018345/involvement-of-ppar%C3%AE-in-the-anticonvulsant-activity-of-ep-80317-a-ghrelin-receptor-antagonist
#19
Chiara Lucchi, Anna M Costa, Carmela Giordano, Giulia Curia, Marika Piat, Giuseppina Leo, Jonathan Vinet, Luc Brunel, Jean-Alain Fehrentz, Jean Martinez, Antonio Torsello, Giuseppe Biagini
Ghrelin, des-acyl ghrelin and other related peptides possess anticonvulsant activities. Although ghrelin and cognate peptides were shown to physiologically regulate only the ghrelin receptor, some of them were pharmacologically proved to activate the peroxisome proliferator-activated receptor gamma (PPARγ) through stimulation of the scavenger receptor CD36 in macrophages. In our study, we challenged the hypothesis that PPARγ could be involved in the anticonvulsant effects of EP-80317, a ghrelin receptor antagonist...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29018142/adiponectin-has-a-pivotal-role-in-the-cardioprotective-effect-of-cp-3-iv-a-selective-cd36-azapeptide-ligand-after-transient-coronary-artery-occlusion-in-mice
#20
David N Huynh, Valérie L Bessi, Liliane Ménard, Jérôme Piquereau, Caroline Proulx, Maria Febbraio, William D Lubell, André C Carpentier, Yan Burelle, Huy Ong, Sylvie Marleau
CD36 is a multiligand receptor involved in lipid metabolism. We investigated the mechanisms underlying the cardioprotective effect of CP-3(iv), an azapeptide belonging to a new class of selective CD36 ligands. The role of CP-3(iv) in mediating cardioprotection was investigated because CD36 signaling leads to activation of peroxisome proliferator-activated receptor-γ, a transcriptional regulator of adiponectin. CP-3(iv) pretreatment reduced infarct size by 54% and preserved hemodynamics in C57BL/6 mice subjected to 30 min coronary ligation and reperfusion but had no effect in CD36-deficient mice...
October 10, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
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