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Sun WD, Zhu XJ, Li JJ, Mei YZ, Li WS, Li JH. Nicotinamide N-methyltransferase (NNMT): a novel therapeutic target for metabolic syndrome. Front Pharmacol 2024; 15:1410479. [PMID: 38919254 PMCID: PMC11196770 DOI: 10.3389/fphar.2024.1410479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 05/21/2024] [Indexed: 06/27/2024] Open
Abstract
Metabolic syndrome (MetS) represents a constellation of metabolic abnormalities, typified by obesity, hypertension, hyperglycemia, and hyperlipidemia. It stems from intricate dysregulations in metabolic pathways governing energy and substrate metabolism. While comprehending the precise etiological mechanisms of MetS remains challenging, evidence underscores the pivotal roles of aberrations in lipid metabolism and insulin resistance (IR) in its pathogenesis. Notably, nicotinamide N-methyltransferase (NNMT) has recently surfaced as a promising therapeutic target for addressing MetS. Single nucleotide variants in the NNMT gene are significantly correlated with disturbances in energy metabolism, obesity, type 2 diabetes (T2D), hyperlipidemia, and hypertension. Elevated NNMT gene expression is notably observed in the liver and white adipose tissue (WAT) of individuals with diabetic mice, obesity, and rats afflicted with MetS. Knockdown of NNMT elicits heightened energy expenditure in adipose and hepatic tissues, mitigates lipid accumulation, and enhances insulin sensitivity. NNMT catalyzes the methylation of nicotinamide (NAM) using S-adenosyl-methionine (SAM) as the donor methyl group, resulting in the formation of S-adenosyl-l-homocysteine (SAH) and methylnicotinamide (MNAM). This enzymatic process results in the depletion of NAM, a precursor of nicotinamide adenine dinucleotide (NAD+), and the generation of SAH, a precursor of homocysteine (Hcy). Consequently, this cascade leads to reduced NAD+ levels and elevated Hcy levels, implicating NNMT in the pathogenesis of MetS. Moreover, experimental studies employing RNA interference (RNAi) strategies and small molecule inhibitors targeting NNMT have underscored its potential as a therapeutic target for preventing or treating MetS-related diseases. Nonetheless, the precise mechanistic underpinnings remain elusive, and as of yet, clinical trials focusing on NNMT have not been documented. Therefore, further investigations are warranted to elucidate the intricate roles of NNMT in MetS and to develop targeted therapeutic interventions.
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Affiliation(s)
| | | | | | | | | | - Jiang-Hua Li
- Key Lab of Aquatic Training Monitoring and Intervention of General Administration of Sport of China, Physical Education College, Jiangxi Normal University, Nanchang, China
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Yalameha B, Reza Nejabati H. Urinary Exosomal Metabolites: Overlooked Clue for Predicting Cardiovascular Risk. Clin Chim Acta 2023:117445. [PMID: 37315726 DOI: 10.1016/j.cca.2023.117445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/10/2023] [Accepted: 06/11/2023] [Indexed: 06/16/2023]
Abstract
Over the last decade, increasing research has focused on urinary exosomes (UEs) in biological fluids and their relationship with physiological and pathological processes. UEs are membranous vesicles with a size of 40-100 nm, containing a number of bioactive molecules such as proteins, lipids, mRNAs, and miRNAs. These vesicles are an inexpensive non-invasive source that can be used in clinical settings to differentiate healthy patients from diseased patients, thereby serving as potential biomarkers for the early identification of disease. Recent studies have reported the isolation of small molecules called exosomal metabolites from individuals' urine with different diseases. These metabolites could utilize for a variety of purposes, such as the discovery of biomarkers, investigation of mechanisms related to disease development, and importantly prediction of cardiovascular diseases (CVDs) risk factors, including thrombosis, inflammation, oxidative stress, hyperlipidemia as well as homocysteine. It has been indicated that alteration in urinary metabolites of N1-methylnicotinamide, 4-aminohippuric acid, and citric acid can be valuable in predicting cardiovascular risk factors, providing a novel approach to evaluating the pathological status of CVDs. Since the UEs metabolome has been clearly and precisely so far unexplored in CVDs, the present study has specifically addressed the role of the mentioned metabolites in the prediction of CVDs risk factors.
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Affiliation(s)
- Banafsheh Yalameha
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamid Reza Nejabati
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Lai S, Ma Y, Hao L, Ding Q, Chang K, Zhuge H, Qiu J, Xu T, Dou X, Li S. 1-Methylnicotinamide promotes hepatic steatosis in mice: A potential mechanism in chronic alcohol-induced fatty liver disease. Biochim Biophys Acta Mol Cell Biol Lipids 2023; 1868:159286. [PMID: 36690322 DOI: 10.1016/j.bbalip.2023.159286] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 12/16/2022] [Accepted: 01/16/2023] [Indexed: 01/22/2023]
Abstract
Alcohol abuse and its related diseases are the major risk factors for human health. Alcohol-related liver disease (ALD) is a leading cause of morbidity and mortality worldwide. Although the mechanism of ALD has been widely investigated, liver metabolites associated with long-term alcohol intake-induced hepatic steatosis have not been well explored. In this study, we aimed to investigate the role and mechanisms of 1-methylnicotinamide (1-MNA), a metabolite during nicotinamide adenine dinucleotide (NAD+) metabolism, in the pathogenesis of ALD. C57BL/6 wild-type mice were subjected to chronic alcohol feeding with or without 1-MNA (50 mg/kg/day). Our data showed that 1-MNA administration significantly enhanced chronic alcohol consumption-induced hepatic steatosis. Mechanistic studies revealed that alcohol-increased hepatic protein levels of sterol regulatory element-binding transcription factor (SREBP-1c), a key enzyme that regulates lipid lipogenesis, were enhanced in mice administered with 1-MNA, regardless of alcohol feeding. Consistently, alcohol-increased mRNA and protein levels of hepatic diacylglycerol o-acyltransferase 2 (DGAT2) and very low-density lipoprotein receptor (VLDLR) were also exacerbated by 1-MNA administration. Alcohol-induced hepatic endoplasmic reticulum (ER) stress was enhanced by 1-MNA administration, which was evidenced by increased protein levels of binding immunoglobulin protein (BIP), phosphorylated- protein kinase r-like ER kinase (PERK), activating transcription factor 4 (ATF4), and C/EBP-homologous protein (CHOP) in the mouse liver. Overall, this study demonstrated that 1-MNA serves as a pathogenic factor in the development of ALD. Targeting liver 1-MNA levels may serve as a promising therapeutic approach for improving hepatic steatosis in ALD.
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Affiliation(s)
- Shanglei Lai
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China; School of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China
| | - Yue Ma
- Zhejiang Provincial Key Laboratory of Laboratory Animals and Safety Research, Hangzhou Medical College, Hangzhou, PR China
| | - Liuyi Hao
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China
| | - Qinchao Ding
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China; Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Kaixin Chang
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China
| | - Hui Zhuge
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China
| | - Jiannan Qiu
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China
| | - Tiantian Xu
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China
| | - Xiaobing Dou
- School of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China.
| | - Songtao Li
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China; Department of Clinical Nutrition, Affiliated Zhejiang Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, PR China.
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Age-related decrease in serum dihydrotestosterone concentration is accompanied by impaired vascular status. Exp Gerontol 2023; 173:112104. [PMID: 36693531 DOI: 10.1016/j.exger.2023.112104] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 12/03/2022] [Accepted: 01/20/2023] [Indexed: 01/22/2023]
Abstract
INTRODUCTION The effect of androgens on the cardiovascular system in humans is ambiguous. Moreover, still little is known about the effects of the most potent androgen, dihydrotestosterone, on arterial stiffness and endothelial function. The aim of this study was to evaluate whether age-dependent alterations in serum concentration of dihydrotestosterone and its circulating metabolite are accompanied by changes in endothelial function and arterial stiffness. METHODS In 12 young and 11 older men, basal serum concentrations of testosterone, dehydroepiandrosterone sulfate (DHAE-S), androstenedione (AE), dihydrotestosterone (DHT) and androstanediol glucuronide (ADG) were analyzed in relation to vascular status including cIMT - carotid intima media thickness, cAI - central augmentation index, crPWV - carotid radial pulse wave velocity, SI - stiffness index, endothelial and inflammatory markers. RESULTS Although concentration of testosterone was not different between young and older group, it was demonstrated that DHT, DHEA-S, AE and ADG were significantly lower in older men in comparison to young men (p < 0.01). Interestingly the most surprising difference was found for DHT concentration, that was as much as 61 % lower in aged men that displayed significantly higher values of cIMT, AI, crPWV and SI (p < 10-4), suggestive of arterial stiffness. Furthermore, DHT was negatively correlated to all arterial wall parameters (cAI, crPWV, SI and cIMT), c-reactive protein (CRP) and hyaluronic acid (HA) concentration, as well as positively correlated to markers of endothelial function (MNA and 6-keto-PGF1α) in all studied individuals (n = 23). CONCLUSIONS We have shown that ageing leads to a significant decrease in DHT concentration that is accompanied by impaired arterial wall characteristics and worsened endothelial function. Therefore more attention should be paid to the DHT, DHEA-S and ADG concentrations as a biomarkers for vascular dysfunction in ageing men.
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Grandys M, Majerczak J, Frolow M, Chlopicki S, Zoladz JA. Training-induced impairment of endothelial function in track and field female athletes. Sci Rep 2023; 13:3502. [PMID: 36859449 PMCID: PMC9977863 DOI: 10.1038/s41598-023-30165-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 02/16/2023] [Indexed: 03/03/2023] Open
Abstract
Professional athletes are often exposed to high training loads that may lead to overfatigue, overreaching and overtraining that might have a detrimental effects on vascular health. We determined the effects of high training stress on endothelial function assessed by the flow-mediated dilation (FMD) and markers of glycocalyx shedding. Vascular examination as well as broad biochemical, hormonal and cardiometabolic evaluation of sprint and middle-distance female runners were performed after 2 months of preparatory training period and compared to age-matched control group of women. Female athletes presented with significantly reduced FMD (p < 0.01) and higher basal serum concentrations of hyaluronan (HA) and syndecan-1 (SDC-1) (p < 0.05 and p < 0.001, respectively), that was accompanied by significantly lower basal serum testosterone (T) and free testosterone (fT) concentrations (p < 0.05) and higher cortisol (C) concentration (p < 0.05). It resulted in significantly lower T/C and fT/C ratios in athletes when compared to controls (p < 0.01). Moreover, fT/C ratio were significantly positively correlated to FMD and negatively to HA concentrations in all studied women. Accordingly, the training load was significantly negatively correlated with T/C, fT/C and FMD and positively with the concentrations of HA and SDC-1. We concluded that young female track and field athletes subjected to physical training developed impairment of endothelial function that was associated with anabolic-catabolic hormone balance disturbances. Given that training-induced impairment of endothelial function may have a detrimental effects on vascular health, endothelial status should be regularly monitored in the time-course of training process to minimalize vascular health-risk in athletes.
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Affiliation(s)
- Marcin Grandys
- Chair of Exercise Physiology and Muscle Bioenergetics, Faculty of Health Sciences, Jagiellonian University Medical College, Ul. Skawinska 8, 31-066, Krakow, Poland.
| | - Joanna Majerczak
- Chair of Exercise Physiology and Muscle Bioenergetics, Faculty of Health Sciences, Jagiellonian University Medical College, Ul. Skawinska 8, 31-066, Krakow, Poland
| | - Marzena Frolow
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland.,Department of Experimental Pharmacology, Chair of Pharmacology, Jagiellonian University Medical College, Krakow, Poland
| | - Jerzy A Zoladz
- Chair of Exercise Physiology and Muscle Bioenergetics, Faculty of Health Sciences, Jagiellonian University Medical College, Ul. Skawinska 8, 31-066, Krakow, Poland.
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Lipopolysaccharide affects energy metabolism and elevates nicotinamide N-methyltransferase level in human aortic endothelial cells (HAEC). Int J Biochem Cell Biol 2022; 151:106292. [PMID: 36038127 DOI: 10.1016/j.biocel.2022.106292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 08/10/2022] [Accepted: 08/24/2022] [Indexed: 11/21/2022]
Abstract
This study aimed to investigate the putative role of nicotinamide N-methyltransferase in the metabolic response of human aortic endothelial cells. This enzyme catalyses S-adenosylmethionine-mediated methylation of nicotinamide to methylnicotinamide. This reaction is accompanied by the reduction of the intracellular nicotinamide and S-adenosylmethionine content. This may affect NAD+ synthesis and various processes of methylation, including epigenetic modifications of chromatin. Particularly high activity of nicotinamide N-methyltransferase is detected in liver, many neoplasms as well as in various cells in stressful conditions. The elevated nicotinamide N-methyltransferase content was also found in endothelial cells treated with statins. Although the exogenous methylnicotinamide has been postulated to induce a vasodilatory response, the specific metabolic role of nicotinamide N-methyltransferase in vascular endothelium is still unclear. Treatment of endothelial cells with bacterial lipopolysaccharide evokes several metabolic and functional consequences which built a multifaceted physiological response of endothelium to bacterial infection. Among the spectrum of biochemical changes substantially elevated protein level of nicotinamide N-methyltransferase was particularly intriguing. Here it has been shown that silencing of the nicotinamide N-methyltransferase gene influences several changes which are observed in cells treated with lipopolysaccharide. They include altered energy metabolism and rearrangement of the mitochondrial network. A complete explanation of the mechanisms behind the protective consequences of the nicotinamide N-methyltransferase deficiency in cells treated with lipopolysaccharide needs further investigation.
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Chudzik M, Burzyńska M, Kapusta J. Use of 1-MNA to Improve Exercise Tolerance and Fatigue in Patients after COVID-19. Nutrients 2022; 14:3004. [PMID: 35893858 PMCID: PMC9331270 DOI: 10.3390/nu14153004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/16/2022] [Accepted: 07/18/2022] [Indexed: 02/08/2023] Open
Abstract
COVID-19 is not only a short-term infection, as patients (pts) recovering from SARS-CoV-2 infection complain of persisting symptoms, which may lead to chronic fatigue syndrome. There is currently no evidence that nutritional supplements can assist in the recovery of pts with chronic fatigue syndrome. 1-Methylnicotinamide (1-MNA) is an endogenic substance that is produced in the liver when nicotinic acid is metabolized. 1-MNA demonstrates anti-inflammatory and anti-thrombotic properties. Therefore, we investigated whether 1-MNA supplements could improve exercise tolerance and decrease fatigue among patients recovering from SARS-CoV-2. METHODS The study population was composed of 50 pts who had recovered from symptomatic COVID-19. The selected pts were randomized into two groups: Gr 1 (NO-1-MNA)-without supplementation; Gr 2 (1-MNA) with 1-MNA supplementation. At the beginning of the study (Phase 0), in both groups, a 6-minute walk test (6MWT) was carried out and fatigue assessment was performed using the Fatigue Severity Scale (FSS). Both FSS and 6MWT were repeated after 1 month. RESULTS A significant improvement in the mean distance covered in the 6MWT was noted at follow-up in Gr 1-MNA, compared with Gr NO-1-MNA. We also noted that in Gr 1-MNA, the 6MWT distance was significantly higher after 1 month of supplementation with 1-MNA, compared with the beginning of the study (515.18 m in Phase 0 vs. 557.8 m in Phase 1; p = 0.000034). In Gr 1-MNA, significantly more pts improved their distance in the 6MWT (23 out of 25 pts, equal to 92%), by a mean of 47 m, compared with Gr NO-1-MNA (15 of 25 pts, equal to 60%) (p = 0.0061). After one month, significantly more patients in the group without 1-MNA had severe fatigue (FSS ≥ 4) compared with the group with supplementation (Gr 1-MNA = 5 pts (20%) vs. Gr NO-1-MNA = 14pts (56%); p = 0.008). CONCLUSIONS 1-MNA supplementation significantly improved physical performance in a 6-min walk test and reduced the percentage of patients with severe fatigue after COVID-19. The comprehensive action of 1-MNA, including anti-inflammatory and anticoagulant effects, may be beneficial for the recovery of patients with persistent symptoms of fatigue and low tolerance to exercise after COVID-19.
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Affiliation(s)
- Michał Chudzik
- Medical Center, Saint Family Hospital, 90-302 Lodz, Poland;
| | - Monika Burzyńska
- Department of Epidemiology and Biostatistics, Social and Preventive Medicine of the Medical University of Lodz, 90-752 Lodz, Poland;
| | - Joanna Kapusta
- Department of Internal Medicine and Cardiac Rehabilitation, Medical University of Lodz, 70-445 Lodz, Poland
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Nejabati HR, Ghaffari-Novin M, Fathi-Maroufi N, Faridvand Y, Holmberg HC, Hansson O, Nikanfar S, Nouri M. N1-Methylnicotinamide: Is It Time to Consider as a Dietary Supplement for Athletes? Curr Pharm Des 2022; 28:800-805. [DOI: 10.2174/1381612828666220211151204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 01/10/2022] [Indexed: 11/22/2022]
Abstract
Abstract:
Exercise is considered to be a “medicine” due to its modulatory roles in metabolic disorders such as diabetes and obesity. The intensity and duration of exercise determine the mechanism of energy production by various tissues of the body, especially by muscles, in which the requirement for adenosine triphosphate (ATP) increases by as much as 100-fold. Naturally, athletes try to improve their exercise performance by dietary supplementation with, e.g., vitamins, metabolites, and amino acids. MNAM, as a vitamin B3 metabolite, reduces serum levels and liver contents of triglycerides, and cholesterol and induces lipolysis. It stimulates gluconeogenesis and prohibits liver cholesterol and fatty acid synthesis through the expression of sirtuin1 (SIRT1). It seems that MNAM is not responsible for the actions of NNMT in the adipose tissues as MNAM inhibits the activity of NNMT in the adipose tissue and acts like inhibitors of its activity. NNMT-MNAM axis is more activated in the muscles of participants who were undergoing the high-volume-low-intensity exercise and caloric restriction. Therefore, MNAM could be an important myokine during exercise and fasting where it provides the required energy for muscles through the induction of lipolysis and gluconeogenesis in the liver and adipose tissues, respectively. Increased levels of MNAM in exercise and fasting led us to propose that the consumption of MNAM during training especially endurance training could boost exercise capacity and improves performance. Therefore, in this review, we shed light on the potential of MNAM as a dietary supplement in sports medicine.
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Affiliation(s)
- Hamid Reza Nejabati
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahsa Ghaffari-Novin
- Faculty of Veterinary Medicine, Karaj Branch, Islamic Azad University, Karaj, Iran
| | - Nazila Fathi-Maroufi
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yousef Faridvand
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hans-Christer Holmberg
- Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, Östersund, Sweden
- School of Kinesiology, University of British Columbia, Vancouver, BC, Canada
| | - Ola Hansson
- Lund University Diabetes Centre, Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Saba Nikanfar
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences Tabriz, Iran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Roles of Nicotinamide N-Methyltransferase in Obesity and Type 2 Diabetes. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9924314. [PMID: 34368359 PMCID: PMC8337113 DOI: 10.1155/2021/9924314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 07/20/2021] [Indexed: 11/28/2022]
Abstract
Type 2 diabetes (T2D) is thought to be a complication of metabolic syndrome caused by disorders of energy utilization and storage and characterized by insulin resistance or deficiency of insulin secretion. Though the mechanism linking obesity to the development of T2D is complex and unintelligible, it is known that abnormal lipid metabolism and adipose tissue accumulation possibly play important roles in this process. Recently, nicotinamide N-methyltransferase (NNMT) has been emerging as a new mechanism-of-action target in treating obesity and associated T2D. Evidence has shown that NNMT is associated with obesity and T2D. NNMT inhibition or NNMT knockdown significantly increases energy expenditure, reduces body weight and white adipose mass, improves insulin sensitivity, and normalizes glucose tolerance and fasting blood glucose levels. Additionally, trials of oligonucleotide therapeutics and experiments with some small-molecule NNMT inhibitors in vitro and in preclinical animal models have validated NNMT as a promising therapeutic target to prevent or treat obesity and associated T2D. However, the exact mechanisms underlying these phenomena are not yet fully understood and clinical trials targeting NNMT have not been reported until now. Therefore, more researches are necessary to reveal the acting mechanism of NNMT in obesity and T2D and to develop therapeutics targeting NNMT.
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Nejabati HR, Schmeisser K, Shahnazi V, Samimifar D, Faridvand Y, Bahrami-Asl Z, Fathi-Maroufi N, Nikanfar S, Nouri M. N1-Methylnicotinamide: An Anti-Ovarian Aging Hormetin? Ageing Res Rev 2020; 62:101131. [PMID: 32711159 DOI: 10.1016/j.arr.2020.101131] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 07/07/2020] [Accepted: 07/18/2020] [Indexed: 02/07/2023]
Abstract
Ovarian aging occurs due to the reduction of the quality and quantity of the oocytes, and is regulated by mitochondrial survival and apoptotic signals. Reactive Oxygen Species (ROS) are one of those signals considered detrimental to cellular homeostasis. Nowadays, ROS are regarded as a regulatory factor at low levels as it induces the stress resistance which in turn increases the longevity. It is believed that the main mechanism for the life-promoting role of the ROS mediated by the 5' Adenosine Monophosphate-activated Protein Kinase (AMPK). N1-Methylnicotinamide (MNAM) is well known for its anti-diabetic, anti-thrombotic, and anti-inflammatory activity. Aldehyde oxidase 1 (AOX1) is a detoxifying enzyme, which metabolizes the MNAM and produces two metabolites including N1-methyl-2-pyridone-5- carboxamide (2py) and N1-methyl-4-pyridone-3-carboxamide (4py). The activity of AOX1 enhances the production of ROS and improves the longevity. It has been reported that the MNAM could postpone the aging through the induction of low-level stress. It has been documented that the production of MNAM is significantly higher in the cumulus cells of the patients with Polycystic Ovary Syndrome (PCOS) and its administration on the rat model of PCOS has been shown to alleviate the hyperandrogenism and successfully activate the ovarian AMPK. Therefore, it can be hypothesized that the anti-ovarian aging effects of the MNAM are possibly based on the activation of AMPK through transient elevation of the ROS.
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Kopacz A, Klóska D, Proniewski B, Cysewski D, Personnic N, Piechota-Polańczyk A, Kaczara P, Zakrzewska A, Forman HJ, Dulak J, Józkowicz A, Grochot-Przęczek A. Keap1 controls protein S-nitrosation and apoptosis-senescence switch in endothelial cells. Redox Biol 2020; 28:101304. [PMID: 31491600 PMCID: PMC6731384 DOI: 10.1016/j.redox.2019.101304] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 07/25/2019] [Accepted: 08/20/2019] [Indexed: 01/07/2023] Open
Abstract
Premature senescence, a death escaping pathway for cells experiencing stress, is conducive to aging and cardiovascular diseases. The molecular switch between senescent and apoptotic fate remains, however, poorly recognized. Nrf2 is an important transcription factor orchestrating adaptive response to cellular stress. Here, we show that both human primary endothelial cells (ECs) and murine aortas lacking Nrf2 signaling are senescent but unexpectedly do not encounter damaging oxidative stress. Instead, they exhibit markedly increased S-nitrosation of proteins. A functional role of S-nitrosation is protection of ECs from death by inhibition of NOX4-mediated oxidative damage and redirection of ECs to premature senescence. S-nitrosation and senescence are mediated by Keap1, a direct binding partner of Nrf2, which colocalizes and precipitates with nitric oxide synthase (NOS) and transnitrosating protein GAPDH in ECs devoid of Nrf2. We conclude that the overabundance of this "unrestrained" Keap1 determines the fate of ECs by regulation of S-nitrosation and propose that Keap1/GAPDH/NOS complex may serve as an enzymatic machinery for S-nitrosation in mammalian cells.
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Affiliation(s)
- Aleksandra Kopacz
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland
| | - Damian Klóska
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland
| | - Bartosz Proniewski
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, 30-348, Krakow, Poland
| | - Dominik Cysewski
- Mass Spectrometry Laboratory, Institute of Biochemistry and Biophysics, Polish Academy of Science, 02-106, Warsaw, Poland
| | - Nicolas Personnic
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland
| | - Aleksandra Piechota-Polańczyk
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland
| | - Patrycja Kaczara
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, 30-348, Krakow, Poland
| | - Agnieszka Zakrzewska
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, 30-348, Krakow, Poland
| | - Henry Jay Forman
- Andrus Gerontology Center of the Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, 90089-0191, USA
| | - Józef Dulak
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland; Malopolska Centre of Biotechnology, Jagiellonian University, 30-387, Krakow, Poland
| | - Alicja Józkowicz
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland
| | - Anna Grochot-Przęczek
- Department of Medical Biotechnology, Faculty of Biochemistry Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland.
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A combination of oral L-citrulline and L-arginine improved 10-min full-power cycling test performance in male collegiate soccer players: a randomized crossover trial. Eur J Appl Physiol 2019; 119:1075-1084. [PMID: 30847640 PMCID: PMC6469824 DOI: 10.1007/s00421-019-04097-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 02/06/2019] [Indexed: 12/22/2022]
Abstract
PURPOSE Oral L-citrulline (Cit) increases plasma L-arginine (Arg) concentration and the production of nitric oxide (NO). NO dilates blood vessels and potentially improves sports performance. The combination of oral Arg and Cit (Arg + Cit) immediately and synergistically increases plasma Arg and nitrite/nitrate (NOx) concentrations more than either Cit or Arg alone. This prompted us to assess the effects of oral Arg + Cit on 10-min cycling performance in a double-blind, randomized, placebo-controlled crossover trial. METHODS Twenty-four male soccer players ingested either Cit + Arg or placebo (both 1.2 g/day each) for 6 days. On day 7, they ingested Cit + Arg 1 h before performing a 10-min full-power pedaling test on a bicycle ergometer. Plasma NOx and amino acid levels were measured before and after the test, as well as the participants' subjective perception of physical exertion. RESULTS Power output was significantly greater with Cit + Arg than in the placebo group (242 ± 24 vs. 231 ± 21 W; p < 0.05). Plasma concentrations of post-exercise NOx (p < 0.05), Cit (p < 0.01) and Arg (p < 0.01) were significantly higher in the Cit + Arg than in the placebo group, whereas exercise upregulated plasma NOx concentrations in both groups (p < 0.05). Cit + Arg also gave improved post-exercise subjective perception of "leg muscle soreness" and "ease of pedaling" (both p < 0.05). CONCLUSION Seven days of oral Citrulline (1.2 g/d) and Arginine (1.2 g/d) ingestion improved 10-min cycling performance and the perception of physical exertion in male collegiate soccer players.
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Vicen M, Vitverova B, Havelek R, Blazickova K, Machacek M, Rathouska J, Najmanová I, Dolezelova E, Prasnicka A, Sternak M, Bernabeu C, Nachtigal P. Regulation and role of endoglin in cholesterol-induced endothelial and vascular dysfunction in vivo and in vitro. FASEB J 2019; 33:6099-6114. [PMID: 30753095 DOI: 10.1096/fj.201802245r] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Our objective was to investigate the effect of cholesterol [hypercholesterolemia and 7-ketocholesterol (7K)] on endoglin (Eng) expression and regulation with respect to endothelial or vascular dysfunction in vivo and in vitro. In vivo experiments were performed in 2-mo-old atherosclerosis-prone apolipoprotein E-deficient/LDL receptor-deficient (ApoE-/-/LDLR-/-) female mice and their wild-type C57BL/6J littermates. In in vitro experiments, human aortic endothelial cells (HAECs) were treated with 7K. ApoE-/-/LDLR-/- mice developed hypercholesterolemia accompanied by increased circulating levels of P-selectin and Eng and a disruption of NO metabolism. Functional analysis of the aorta demonstrated impaired vascular reactivity, and Western blot analysis revealed down-regulation of membrane Eng/Smad2/3/eNOS signaling in ApoE-/-/LDLR-/- mice. 7K increased Eng expression via Krüppel-like factor 6 (KLF6), liver X nuclear receptor, and NF-κB in HAECs. 7K-induced Eng expression was prevented by the treatment with 2-hydroxypropyl-β-cyclodextrin; 8-{[5-chloro-2-(4-methylpiperazin-1-yl) pyridine-4-carbonyl] amino}-1-(4-fluorophenyl)-4, 5-dihydrobenzo[g]indazole-3-carboxamide; or by KLF6 silencing. 7K induced increased adhesion and transmigration of monocytic human leukemia promonocytic cell line cells and was prevented by Eng silencing. We concluded that hypercholesterolemia altered Eng expression and signaling, followed by endothelial or vascular dysfunction before formation of atherosclerotic lesions in ApoE-/-/LDLR-/- mice. By contrast, 7K increased Eng expression and induced inflammation in HAECs, which was followed by an increased adhesion and transmigration of monocytes via endothelium, which was prevented by Eng inhibition. Thus, we propose a relevant role for Eng in endothelial or vascular dysfunction or inflammation when exposed to cholesterol.-Vicen, M., Vitverova, B., Havelek, R., Blazickova, K., Machacek, M., Rathouska, J., Najmanová, I., Dolezelova, E., Prasnicka, A., Sternak, M., Bernabeu, C., Nachtigal, P. Regulation and role of endoglin in cholesterol-induced endothelial and vascular dysfunction in vivo and in vitro.
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Affiliation(s)
- Matej Vicen
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Barbora Vitverova
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Radim Havelek
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Katerina Blazickova
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Miloslav Machacek
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Jana Rathouska
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Iveta Najmanová
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Eva Dolezelova
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Alena Prasnicka
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Magdalena Sternak
- Jagiellonian Centre for Experimental Therapeutics (JCET), Bobrzynskiego, Krakow, Poland
| | - Carmelo Bernabeu
- Center for Biological Research, Spanish National Research Council (CSIC), Madrid, Spain.,Biomedical Research Networking Center on Rare Diseases (CIBERER), Madrid, Spain
| | - Petr Nachtigal
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
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14
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Zhou Q, Huang ZG, Zhu XJ, Xie ZH, Yao TF, Wang YH, Li JH. Effects of nicotinamide N-methyltransferase (NNMT) inhibition on the aerobic and the anaerobic endurance exercise capacity. Sci Sports 2018. [DOI: 10.1016/j.scispo.2018.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Comparison of Pulmonary and Systemic NO- and PGI 2-Dependent Endothelial Function in Diabetic Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:4036709. [PMID: 29967661 PMCID: PMC6008763 DOI: 10.1155/2018/4036709] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/03/2018] [Accepted: 04/16/2018] [Indexed: 12/16/2022]
Abstract
Diabetes increases the risk of pulmonary hypertension and is associated with alterations in pulmonary vascular function. Still, it is not clear whether alterations in the phenotype of pulmonary endothelium induced by diabetes are distinct, as compared to peripheral endothelium. In the present work, we characterized differences between diabetic complications in the lung and aorta in db/db mice with advanced diabetes. Male, 20-week-old db/db mice displayed increased HbA1c and glucose concentration compatible with advanced diabetes. Diabetic lungs had signs of mild fibrosis, and pulmonary endothelium displayed significantly ultrastructural changes. In the isolated, perfused lung from db/db mice, filtration coefficient (Kf,c) and contractile response to TXA2 analogue were enhanced, while endothelial NO-dependent modulation of pulmonary response to hypoxic ventilation and cumulative production of NO2− were impaired, with no changes in immunostaining for eNOS expression. In turn, 6-keto-PGF1α release from the isolated lung from db/db mice was increased, as well as immunostaining of thrombomodulin (CD141). In contrast to the lung, NO-dependent, acetylcholine-induced vasodilation, ionophore-stimulated NO2− generation, and production of 6-keto-PGF1α were all impaired in aortic rings from db/db mice. Although eNOS immunostaining was not changed, that of CD141 was clearly lowered. Interestingly, diabetes-induced nitration of proteins in aorta was higher than that in the lungs. In summary, diabetes induced marked ultrastructural changes in pulmonary endothelium that were associated with the increased permeability of pulmonary microcirculation, impaired NO-dependent vascular function, with compensatory increase in PGI2 production, and increased CD141 expression. In contrast, endothelial dysfunction in the aorta was featured by impaired NO-, PGI2-dependent function and diminished CD141 expression.
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16
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Nejabati HR, Mihanfar A, Pezeshkian M, Fattahi A, Latifi Z, Safaie N, Valiloo M, Jodati AR, Nouri M. N1-methylnicotinamide (MNAM) as a guardian of cardiovascular system. J Cell Physiol 2018; 233:6386-6394. [PMID: 29741779 DOI: 10.1002/jcp.26636] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/30/2018] [Indexed: 12/19/2022]
Abstract
Atherosclerosis is identified as the formation of atherosclerotic plaques, which could initiate the formation of a blood clot in which its growth to coronary artery can lead to a heart attack. N-methyltransferase (NNMT) is an enzyme that converts the NAM (nicotinamide) to its methylated form, N1-methylnicotinamide (MNAM). Higher levels of MNAM have been reported in cases with coronary artery disease (CAD). Further, MNAM increases endothelial prostacyclin (PGI2) and nitric oxide (NO) and thereby causes vasorelaxation. The vasoprotective, anti-inflammatory and anti-thrombotic roles of MNAM have been well documented; however, the exact underlying mechanisms remain to be clarified. Due to potential role of MNAM in the formation of lipid droplets (LDs), it might exert its function in coordination with lipids, and their targets. In this study, we summarized the roles of MNAM in cardiovascular system and highlighted its possible mode of actions.
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Affiliation(s)
- Hamid Reza Nejabati
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aynaz Mihanfar
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoud Pezeshkian
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Fattahi
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zeinab Latifi
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Naser Safaie
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Valiloo
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahmad Reza Jodati
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
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17
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Ziaja J, Kowalik AP, Kolonko A, Kamińska D, Owczarek AJ, Kujawa-Szewieczek A, Kusztal MA, Badura J, Bożek-Pająk D, Choręza P, Zakrzewska A, Król R, Chłopicki S, Klinger M, Więcek A, Chudek J, Cierpka L. Type 1 diabetic patients have better endothelial function after simultaneous pancreas-kidney transplantation than after kidney transplantation with continued insulin therapy. Diab Vasc Dis Res 2018; 15:122-130. [PMID: 29233018 DOI: 10.1177/1479164117744423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The purpose of this study was to analyse the influence of simultaneous pancreas-kidney or kidney transplantation on endothelial function and systemic inflammation in type 1 diabetic patients with end-stage renal disease. In 39 simultaneous pancreas-kidney, 39 type 1 diabetic kidney and 52 non-diabetic kidney recipients, flow-mediated dilatation was measured. Additionally, blood glycated haemoglobin, serum creatinine and lipids, plasma nitrites [Formula: see text] and nitrates, asymmetric dimethylarginine, soluble vascular cell adhesion molecule-1, intercellular adhesion molecule-1, and E-selectin, high-sensitivity C-reactive protein, tumour necrosis factor-α, interleukin 1β and interleukin 6 concentrations were assessed. During 58 ± 31 months follow-up period, flow-mediated dilatation and [Formula: see text] were greater in simultaneous pancreas-kidney than in type 1 diabetic kidney recipients [10.4% ± 4.7% vs 7.7% ± 4.2%, p < 0.05 and 0.94 (0.74-1.34) vs 0.24 (0.20-0.43) μmol/L, p < 0.01, respectively]. In type 1 diabetic patients after simultaneous pancreas-kidney or kidney transplantation, [Formula: see text] correlated with flow-mediated dilatation (r = 0.306, p < 0.05) and with blood glycated haemoglobin (r = -0.570, p < 0.001). The difference in [Formula: see text] was linked to blood glycated haemoglobin and estimated glomerular filtration rate, whereas the difference in flow-mediated dilatation was linked to [Formula: see text]. The levels of inflammatory markers (except soluble vascular cell adhesion molecule-1) were similar in simultaneous pancreas-kidney and type 1 diabetic kidney recipients. Improved endothelial function in type 1 diabetic patients with end-stage renal disease after simultaneous pancreas-kidney compared to kidney transplantation is associated with normalisation of glucose metabolism but not with improvement in plasma pro-inflammatory cytokines.
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Affiliation(s)
- Jacek Ziaja
- 1 Department of General, Vascular and Transplant Surgery, Medical University of Silesia, Katowice, Poland
| | - Adrian P Kowalik
- 1 Department of General, Vascular and Transplant Surgery, Medical University of Silesia, Katowice, Poland
| | - Aureliusz Kolonko
- 2 Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia, Katowice, Poland
| | - Dorota Kamińska
- 3 Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wrocław, Poland
| | - Aleksander J Owczarek
- 4 Department of Statistics, Department of Instrumental Analysis, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Agata Kujawa-Szewieczek
- 2 Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia, Katowice, Poland
| | - Mariusz A Kusztal
- 3 Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wrocław, Poland
| | - Joanna Badura
- 1 Department of General, Vascular and Transplant Surgery, Medical University of Silesia, Katowice, Poland
| | - Dominika Bożek-Pająk
- 1 Department of General, Vascular and Transplant Surgery, Medical University of Silesia, Katowice, Poland
| | - Piotr Choręza
- 4 Department of Statistics, Department of Instrumental Analysis, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Agnieszka Zakrzewska
- 5 Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Kraków, Poland
| | - Robert Król
- 1 Department of General, Vascular and Transplant Surgery, Medical University of Silesia, Katowice, Poland
| | - Stefan Chłopicki
- 5 Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Kraków, Poland
- 6 Chair of Pharmacology, Jagiellonian University Medical College, Kraków, Poland
| | - Marian Klinger
- 3 Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wrocław, Poland
| | - Andrzej Więcek
- 2 Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia, Katowice, Poland
| | - Jerzy Chudek
- 7 Department of Pathophysiology, Medical University of Silesia, Katowice, Poland
- 8 Department of Internal Medicine and Oncological Chemotherapy, Medical University of Silesia, Katowice, Poland
| | - Lech Cierpka
- 1 Department of General, Vascular and Transplant Surgery, Medical University of Silesia, Katowice, Poland
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18
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Smeda M, Przyborowski K, Proniewski B, Zakrzewska A, Kaczor D, Stojak M, Buczek E, Nieckarz Z, Zoladz JA, Wietrzyk J, Chlopicki S. Breast cancer pulmonary metastasis is increased in mice undertaking spontaneous physical training in the running wheel; a call for revising beneficial effects of exercise on cancer progression. Am J Cancer Res 2017; 7:1926-1936. [PMID: 28979814 PMCID: PMC5622226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 06/22/2017] [Indexed: 06/07/2023] Open
Abstract
It has been repeatedly shown that regular aerobic exercise exerts beneficial effects on incidence and progression of cancer. However, the data regarding effects of exercise on metastatic dissemination remain conflicting. Therefore, in the present study the possible preventive effects of voluntary wheel running on primary tumor growth and metastases formation in the model of spontaneous pulmonary metastasis were analyzed after orthotopic injection of 4T1 breast cancer cells into mammary fat pads of female Balb/C mice. This study identified that in the mice injected with 4T1 breast cancer cells and running on the wheels (4T1 ex) the volume and size of the primary tumor were not affected, but the number of secondary nodules formed in the lungs was significantly increased compared to their sedentary counterparts (4T1 sed). This effect was associated with decreased NO production in the isolated aorta of exercising mice (4T1 ex), suggesting deterioration of endothelial function that was associated with lower platelet count without their overactivation. This was evidenced by comparable selectin P, active GPIIb/IIIa expression, fibrinogen and vWF binding on the platelet surface. In conclusion, voluntary wheel running appeared to impair, rather than improve endothelial function, and to promote, but not decrease metastasis in the murine orthotopic model of metastatic breast cancer. These results call for revising the notion of the persistent beneficial effects of voluntary exercise on breast cancer progression, though further studies are needed to elucidate mechanisms involved in pro-metastatic effects of voluntary exercise.
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Affiliation(s)
- Marta Smeda
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian UniversityBobrzynskiego 14, 30-348, Krakow, Poland
| | - Kamil Przyborowski
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian UniversityBobrzynskiego 14, 30-348, Krakow, Poland
| | - Bartosz Proniewski
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian UniversityBobrzynskiego 14, 30-348, Krakow, Poland
| | - Agnieszka Zakrzewska
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian UniversityBobrzynskiego 14, 30-348, Krakow, Poland
| | - Dawid Kaczor
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian UniversityBobrzynskiego 14, 30-348, Krakow, Poland
| | - Marta Stojak
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian UniversityBobrzynskiego 14, 30-348, Krakow, Poland
| | - Elzbieta Buczek
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian UniversityBobrzynskiego 14, 30-348, Krakow, Poland
| | - Zenon Nieckarz
- Department of Physiology and Biochemistry, University School of Physical EducationAl. Jana Pawła II 78, 31-571, Krakow, Poland
| | - Jerzy A Zoladz
- Department of Physiology and Biochemistry, University School of Physical EducationAl. Jana Pawła II 78, 31-571, Krakow, Poland
| | - Joanna Wietrzyk
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of SciencesR. Weigla St. 12, 53-114, Wroclaw, Poland
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian UniversityBobrzynskiego 14, 30-348, Krakow, Poland
- Chair of Pharmacology, Jagiellonian University, Medical CollegeGrzegorzecka 16, PL 31-531, Krakow, Poland
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19
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Szafarz M, Kus K, Walczak M, Zakrzewska A, Niemczak M, Pernak J, Chlopicki S. Pharmacokinetic Profile of 1-Methylnicotinamide Nitrate in Rats. J Pharm Sci 2017; 106:1412-1418. [DOI: 10.1016/j.xphs.2017.01.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 01/04/2017] [Accepted: 01/05/2017] [Indexed: 12/17/2022]
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20
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Bar A, Olkowicz M, Tyrankiewicz U, Kus E, Jasinski K, Smolenski RT, Skorka T, Chlopicki S. Functional and Biochemical Endothelial Profiling In Vivo in a Murine Model of Endothelial Dysfunction; Comparison of Effects of 1-Methylnicotinamide and Angiotensin-converting Enzyme Inhibitor. Front Pharmacol 2017; 8:183. [PMID: 28443021 PMCID: PMC5385379 DOI: 10.3389/fphar.2017.00183] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Accepted: 03/21/2017] [Indexed: 12/20/2022] Open
Abstract
Although it is known that 1-methylnicotinamide (MNA) displays vasoprotective activity in mice, as yet the effect of MNA on endothelial function has not been demonstrated in vivo. Here, using magnetic resonance imaging (MRI) we profile the effects of MNA on endothelial phenotype in mice with atherosclerosis (ApoE/LDLR-/-) in vivo, in comparison to angiotensin (Ang) -converting enzyme (ACE) inhibitor (perindopril), with known vasoprotective activity. On a biochemical level, we analyzed whether MNA- or perindopril-induced improvement in endothelial function results in changes in ACE/Ang II-ACE2/Ang-(1–7) balance, and L-arginine/asymmetric dimethylarginine (ADMA) ratio. Endothelial function and permeability were evaluated in the brachiocephalic artery (BCA) in 4-month-old ApoE/LDLR-/- mice that were non-treated or treated for 1 month or 2 months with either MNA (100 mg/kg/day) or perindopril (10 mg/kg/day). The 3D IntraGate®FLASH sequence was used for evaluation of BCA volume changes following acetylcholine (Ach) administration, and for relaxation time (T1) mapping around BCA to assess endothelial permeability using an intravascular contrast agent. Activity of ACE/Ang II and ACE2/Ang-(1–7) pathways as well as metabolites of L-arginine/ADMA pathway were measured using liquid chromatography/mass spectrometry-based methods. In non-treated 6-month-old ApoE/LDLR-/- mice, Ach induced a vasoconstriction in BCA that amounted to –7.2%. 2-month treatment with either MNA or perindopril resulted in the reversal of impaired Ach-induced response to vasodilatation (4.5 and 5.5%, respectively) and a decrease in endothelial permeability (by about 60% for MNA-, as well as perindopril-treated mice). Improvement of endothelial function by MNA and perindopril was in both cases associated with the activation of ACE2/Ang-(1–7) and the inhibition of ACE/Ang II axes as evidenced by an approximately twofold increase in Ang-(1–9) and Ang-(1–7) and a proportional decrease in Ang II and its active metabolites. Finally, MNA and perindopril treatment resulted in an increase in L-arginine/ADMA ratio by 107% (MNA) and 140% (perindopril), as compared to non-treated mice. Functional and biochemical endothelial profiling in ApoE/LDLR-/- mice in vivo revealed that 2-month treatment with MNA (100 mg/kg/day) displayed a similar profile of vasoprotective effect as 2-month treatment with perindopril (10 mg/kg/day): i.e., the improvement in endothelial function that was associated with the beneficial changes in ACE/Ang II-ACE2/Ang (1–7) balance and in L-arginine/ADMA ratio in plasma.
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Affiliation(s)
- Anna Bar
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian UniversityKrakow, Poland.,Chair of Pharmacology, Jagiellonian University Medical CollegeKrakow, Poland
| | - Mariola Olkowicz
- Department of Biochemistry, Medical University of GdanskGdansk, Poland.,Department of Biotechnology and Food Microbiology, Poznan University of Life SciencesPoznan, Poland
| | - Urszula Tyrankiewicz
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian UniversityKrakow, Poland
| | - Edyta Kus
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian UniversityKrakow, Poland
| | - Krzysztof Jasinski
- Department of Magnetic Resonance Imaging, Institute of Nuclear Physics Polish Academy of SciencesKrakow, Poland
| | | | - Tomasz Skorka
- Department of Magnetic Resonance Imaging, Institute of Nuclear Physics Polish Academy of SciencesKrakow, Poland
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian UniversityKrakow, Poland.,Chair of Pharmacology, Jagiellonian University Medical CollegeKrakow, Poland
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21
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Przyborowski K, Kassassir H, Wojewoda M, Kmiecik K, Sitek B, Siewiera K, Zakrzewska A, Rudolf AM, Kostogrys R, Watala C, Zoladz JA, Chlopicki S. Effects of a single bout of strenuous exercise on platelet activation in female ApoE/LDLR -/- mice. Platelets 2017; 28:657-667. [PMID: 28067100 DOI: 10.1080/09537104.2016.1254764] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Strenuous physical exercise leads to platelet activation that is normally counterbalanced by the production of endothelium-derived anti-platelet mediators, including prostacyclin (PGI2) and nitric oxide (NO). However, in the case of endothelial dysfunction, e.g. in atherosclerosis, there exists an increased risk for intravascular thrombosis during exercise that might be due to an impairment in endothelial anti-platelet mechanisms. In the present work, we evaluated platelet activation at rest and following a single bout of strenuous treadmill exercise in female ApoE/LDLR-/- mice with early (3-month-old) and advanced (7-month-old) atherosclerosis compared to female age-matched WT mice. In sedentary and post-exercise groups of animals, we analyzed TXB2 generation and the expression of platelet activation markers in the whole blood ex vivo assay. We also measured pre- and post-exercise plasma concentration of 6-keto-PGF1α, nitrite/nitrate, lipid profile, and blood cell count. Sedentary 3- and 7-month-old ApoE/LDLR-/- mice displayed significantly higher activation of platelets compared to age-matched wild-type (WT) mice, as evidenced by increased TXB2 production, expression of P-selectin, and activation of GPIIb/IIIa receptors, as well as increased fibrinogen and von Willebrand factor (vWf) binding. Interestingly, in ApoE/LDLR-/- but not in WT mice, strenuous exercise partially inhibited TXB2 production, the expression of activated GPIIb/IIIa receptors, and fibrinogen binding, with no effect on the P-selectin expression and vWf binding. Post-exercise down-regulation of the activated GPIIb/IIIa receptor expression and fibrinogen binding was not significantly different between 3- and 7-month-old ApoE/LDLR-/- mice; however, only 7-month-old ApoE/LDLR-/- mice showed lower TXB2 production after exercise. In female 4-6-month-old ApoE/LDLR-/- but not in WT mice, an elevated pre- and post-exercise plasma concentration of 6-keto-PGF1α was observed. In turn, the pre- and post-exercise plasma concentrations of nitrite (NO2-) and nitrate (NO3-) were decreased in ApoE/LDLR-/- as compared to that in age-matched WT mice. In conclusion, we demonstrated overactivation of platelets in ApoE/LDLR-/- as compared to WT mice. However, platelet activation in ApoE/LDLR-/- mice was not further increased by strenuous exercise, but was instead attenuated, a phenomenon not observed in WT mice. This phenomenon could be linked to compensatory up-regulation of PGI2-dependent anti-platelet mechanisms in ApoE/LDLR-/- mice.
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Affiliation(s)
- K Przyborowski
- a Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University , Krakow , Poland
| | - H Kassassir
- b Department of Haemostasis and Haemostatic Disorders , Chair of Biomedical Sciences, Medical University of Lodz , Lodz , Poland
| | - M Wojewoda
- a Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University , Krakow , Poland
| | - K Kmiecik
- a Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University , Krakow , Poland
| | - B Sitek
- a Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University , Krakow , Poland
| | - K Siewiera
- b Department of Haemostasis and Haemostatic Disorders , Chair of Biomedical Sciences, Medical University of Lodz , Lodz , Poland
| | - A Zakrzewska
- a Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University , Krakow , Poland
| | - A M Rudolf
- a Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University , Krakow , Poland
| | - R Kostogrys
- c Department of Human Nutrition, Faculty of Food Technology , Agricultural University of Krakow , Krakow , Poland
| | - C Watala
- b Department of Haemostasis and Haemostatic Disorders , Chair of Biomedical Sciences, Medical University of Lodz , Lodz , Poland
| | - J A Zoladz
- d Department of Muscle Physiology, Chair of Physiology and Biochemistry, Faculty of Rehabilitation , University School of Physical Education , Krakow , Poland
| | - S Chlopicki
- a Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University , Krakow , Poland.,e Chair of Pharmacology , Jagiellonian University Medical College , Krakow , Poland
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22
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Russell-Puleri S, Dela Paz NG, Adams D, Chattopadhyay M, Cancel L, Ebong E, Orr AW, Frangos JA, Tarbell JM. Fluid shear stress induces upregulation of COX-2 and PGI 2 release in endothelial cells via a pathway involving PECAM-1, PI3K, FAK, and p38. Am J Physiol Heart Circ Physiol 2016; 312:H485-H500. [PMID: 28011582 PMCID: PMC5402016 DOI: 10.1152/ajpheart.00035.2016] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 10/31/2016] [Accepted: 11/21/2016] [Indexed: 12/16/2022]
Abstract
Vascular endothelial cells play an important role in the regulation of vascular function in response to mechanical stimuli in both healthy and diseased states. Prostaglandin I2 (PGI2) is an important antiatherogenic prostanoid and vasodilator produced in endothelial cells through the action of the cyclooxygenase (COX) isoenzymes COX-1 and COX-2. However, the mechanisms involved in sustained, shear-induced production of COX-2 and PGI2 have not been elucidated but are determined in the present study. We used cultured endothelial cells exposed to steady fluid shear stress (FSS) of 10 dyn/cm2 for 5 h to examine shear stress-induced induction of COX-2/PGI2 Our results demonstrate the relationship between the mechanosensor platelet endothelial cell adhesion molecule-1 (PECAM-1) and the intracellular mechanoresponsive molecules phosphatidylinositol 3-kinase (PI3K), focal adhesion kinase (FAK), and mitogen-activated protein kinase p38 in the FSS induction of COX-2 expression and PGI2 release. Knockdown of PECAM-1 (small interference RNA) expression inhibited FSS-induced activation of α5β1-integrin, upregulation of COX-2, and release of PGI2 in both bovine aortic endothelial cells (BAECs) and human umbilical vein endothelial cells (HUVECs). Furthermore, inhibition of the PI3K pathway (LY294002) substantially inhibited FSS activation of α5β1-integrin, upregulation of COX-2 gene and protein expression, and release of PGI2 in BAECs. Inhibition of integrin-associated FAK (PF573228) and MAPK p38 (SB203580) also inhibited the shear-induced upregulation of COX-2. Finally, a PECAM-1-/- mouse model was characterized by reduced COX-2 immunostaining in the aorta and reduced plasma PGI2 levels compared with wild-type mice, as well as complete inhibition of acute flow-induced PGI2 release compared with wild-type animals.NEW & NOTEWORTHY In this study we determined the major mechanotransduction pathway by which blood flow-driven shear stress activates cyclooxygenase-2 (COX-2) and prostaglandin I2 (PGI2) release in endothelial cells. Our work has demonstrated for the first time that COX-2/PGI2 mechanotransduction is mediated by the mechanosensor platelet endothelial cell adhesion molecule-1 (PECAM-1).
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Affiliation(s)
| | | | - Diana Adams
- La Jolla Bioengineering Institute, La Jolla, California
| | | | - Limary Cancel
- Department of Biomedical Engineering, City College of New York, New York, New York
| | - Eno Ebong
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts; and
| | - A Wayne Orr
- Department of Pathology, Louisiana State University, Shreveport, Louisiana
| | | | - John M Tarbell
- Department of Biomedical Engineering, City College of New York, New York, New York;
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23
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Effects of chronic nitric oxide synthase inhibition on V'O 2max and exercise capacity in mice. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2016; 390:235-244. [PMID: 27915453 DOI: 10.1007/s00210-016-1318-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 11/14/2016] [Indexed: 10/20/2022]
Abstract
Acute inhibition of NOS by L-NAME (Nω-nitro-L-arginine methyl ester) is known to decrease maximal oxygen consumption (V'O2max) and impair maximal exercise capacity, whereas the effects of chronic L-NAME treatment on V'O2max and exercise performance have not been studied so far. In this study, we analysed the effect of L-NAME treatment, (LN2 and LN12, respectively) on V'O2max and exercise capacity (in maximal incremental running and prolonged sub-maximal incremental running tests), systemic NO bioavailability (plasma nitrite (NO2-) and nitrate (NO3-)) and prostacyclin (PGI2) production in C57BL6/J mice. Mice treated with L-NAME for 2 weeks (LN2) displayed higher V'O2max and better running capacity than age-matched control mice. In LN2 mice, NO bioavailability was preserved, as evidenced by maintained NO2- plasma concentration. PGI2 production was activated (increased 6-keto-PGF1α plasma concentration) and the number of circulating erythrocytes (RBC) and haemoglobin concentration were increased. In mice treated with L-NAME for 12 weeks (LN12), NO bioavailability was decreased (lower NO2- plasma concentration), and 6-keto-PGF1α plasma concentration and RBC number were not elevated compared to age-matched control mice. However, LN12 mice still performed better during the maximal incremental running test despite having lower V'O2max. Interestingly, the LN12 mice showed poorer running capacity during the prolonged sub-maximal incremental running test. To conclude, short-term (2 weeks) but not long-term (12 weeks) treatment with L-NAME activated robust compensatory mechanisms involving preservation of NO2- plasma concentration, overproduction of PGI2 and increased number of RBCs, which might explain the fully preserved exercise capacity despite the inhibition of NOS.
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24
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Jiang N, Wang M, Song J, Liu Y, Chen H, Mu D, Xia M. N-methylnicotinamide protects against endothelial dysfunction and attenuates atherogenesis in apolipoprotein E-deficient mice. Mol Nutr Food Res 2016; 60:1625-36. [PMID: 26887666 DOI: 10.1002/mnfr.201501019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 02/02/2016] [Accepted: 02/04/2016] [Indexed: 11/10/2022]
Abstract
SCOPE Epidemiological studies have demonstrated that N-methylnicotinamide (MNA) may exert antithrombotic and anti-inflammatory effects on the endothelium. However, the exact role of MNA in endothelial function remains uncertain. METHODS AND RESULTS Apolipoprotein E-deficient (apoE(-/-) ) mice fed with a high-fat, high-cholesterol diet (HCD) and human umbilical vein endothelial cells (HUVECs) were used to explore the role of MNA in endothelial function and its underlying mechanism. The endothelium-dependent vasorelaxation to acetylcholine in the aortas of low and high dose MNA-fed apoE(-/-) mice was improved by 24 and 36% (p < 0.05), respectively, compared with high-fat, HCD-fed control. MNA significantly increased nitric oxide/cyclic guanosinemonophosphate levels and decreased asymmetric dimethylarginine (ADMA) concentrations by induction of dimethylarginine dimethylaminohydrolase (DDAH)2 both in aorta and endothelial cells. Neither the activity nor the protein expression of DDAH1 was influenced upon MNA treatment. Then, DDAH2 depletion by RNA interference in HUVECs abolished the protective effect of MNA on endothelial function. Mechanically, this could be attributed to a direct modulation of the methylation level of DDAH2 gene promoter region by MNA. CONCLUSIONS The present study reveals a novel mechanism through which MNA improves endothelial dysfunction and attenuates atherogenesis via the modulation of ADMA-DDAH axis.
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Affiliation(s)
- Nan Jiang
- Department of Nutrition, School of Public Health, Sun Yat-sen University (Northern Campus), Guangzhou, Guangdong Province, P. R. China
| | - Min Wang
- Department of Nutrition, School of Public Health, Sun Yat-sen University (Northern Campus), Guangzhou, Guangdong Province, P. R. China
| | - Jiayi Song
- Department of Nutrition, School of Public Health, Sun Yat-sen University (Northern Campus), Guangzhou, Guangdong Province, P. R. China
| | - Yan Liu
- Department of Nutrition, School of Public Health, Sun Yat-sen University (Northern Campus), Guangzhou, Guangdong Province, P. R. China
| | - Hongen Chen
- Department of Nutrition, School of Public Health, Sun Yat-sen University (Northern Campus), Guangzhou, Guangdong Province, P. R. China
| | - Di Mu
- Department of Nutrition, School of Public Health, Sun Yat-sen University (Northern Campus), Guangzhou, Guangdong Province, P. R. China
| | - Min Xia
- Department of Nutrition, School of Public Health, Sun Yat-sen University (Northern Campus), Guangzhou, Guangdong Province, P. R. China
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25
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Jakubowski A, Sternak M, Jablonski K, Ciszek-Lenda M, Marcinkiewicz J, Chlopicki S. 1-Methylnicotinamide protects against liver injury induced by concanavalin A via a prostacyclin-dependent mechanism: A possible involvement of IL-4 and TNF-α. Int Immunopharmacol 2016; 31:98-104. [DOI: 10.1016/j.intimp.2015.11.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 11/16/2015] [Accepted: 11/25/2015] [Indexed: 12/18/2022]
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