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Srikanth M, Rasool M. Resistin - A Plausible Therapeutic Target in the Pathogenesis of Psoriasis. Immunol Invest 2024; 53:115-159. [PMID: 38054436 DOI: 10.1080/08820139.2023.2288836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Resistin, a cytokine hormone predominantly secreted by adipose tissue, is elevated in various metabolic disorders such as obesity, type 2 diabetes, and cardiovascular disease. In addition to its involvement in metabolic regulation, resistin has been implicated in the pathogenesis of psoriasis, a chronic inflammatory skin disorder. Numerous studies have reported increased resistin levels in psoriatic skin lesions, suggesting a possible association between resistin and psoriasis. Recent studies have suggested the potential involvement of resistin in the development and progression of certain cancers. Resistin is overexpressed in breast, colorectal, and gastric cancers. This suggests that it may play a role in the development of these cancers, possibly by inducing inflammation and cell growth. The link between resistin and cancer raises the possibility of shared underlying mechanisms driving the pathogenesis of psoriasis. Chronic inflammation, one such mechanism, is a hallmark of psoriasis and cancer. Further research is needed to fully understand the relationship between resistin and psoriasis. Identifying potential therapeutic targets is crucial for effective management of psoriasis. By doing so, we may be able to develop more effective treatment options for individuals living with psoriasis and ultimately improve their quality of life. Ultimately, a more comprehensive understanding of the mechanisms underlying the impact of resistin on psoriasis is essential for advancing our knowledge and finding new ways to treat and manage this challenging condition.
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Affiliation(s)
- Manupati Srikanth
- Immunopathology Lab, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore, India
| | - Mahaboobkhan Rasool
- Immunopathology Lab, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore, India
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Xiao Q, Wang D, Li D, Huang J, Ma F, Zhang H, Sheng Y, Zhang C, Ha X. Protein kinase C: A potential therapeutic target for endothelial dysfunction in diabetes. J Diabetes Complications 2023; 37:108565. [PMID: 37540984 DOI: 10.1016/j.jdiacomp.2023.108565] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/13/2023] [Accepted: 07/22/2023] [Indexed: 08/06/2023]
Abstract
Protein kinase C (PKC) is a family of serine/threonine protein kinases that play an important role in many organs and systems and whose activation contributes significantly to endothelial dysfunction in diabetes. The increase in diacylglycerol (DAG) under high glucose conditions mediates PKC activation and synthesis, which stimulates oxidative stress and inflammation, resulting in impaired endothelial cell function. This article reviews the contribution of PKC to the development of diabetes-related endothelial dysfunction and summarizes the drugs that inhibit PKC activation, with the aim of exploring therapeutic modalities that may alleviate endothelial dysfunction in diabetic patients.
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Affiliation(s)
- Qian Xiao
- Department of Laboratory, Ninth Forty Hospital of the Chinese People's Liberation Army Joint Security Force, Lanzhou 730050, Gansu, China; School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, Gansu, China
| | - Dan Wang
- Department of Laboratory, Ninth Forty Hospital of the Chinese People's Liberation Army Joint Security Force, Lanzhou 730050, Gansu, China; School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, Gansu, China
| | - Danyang Li
- School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, Gansu, China
| | - Jing Huang
- Department of Laboratory, Ninth Forty Hospital of the Chinese People's Liberation Army Joint Security Force, Lanzhou 730050, Gansu, China; School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, Gansu, China
| | - Feifei Ma
- Department of Laboratory, Ninth Forty Hospital of the Chinese People's Liberation Army Joint Security Force, Lanzhou 730050, Gansu, China; College of Veterinary Medicine, Gansu Agriculture University, Lanzhou 730070, Gansu, China
| | - Haocheng Zhang
- Department of Laboratory, Ninth Forty Hospital of the Chinese People's Liberation Army Joint Security Force, Lanzhou 730050, Gansu, China; The Second School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Yingda Sheng
- Department of Laboratory, Ninth Forty Hospital of the Chinese People's Liberation Army Joint Security Force, Lanzhou 730050, Gansu, China; School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, Gansu, China
| | - Caimei Zhang
- Department of Laboratory, Ninth Forty Hospital of the Chinese People's Liberation Army Joint Security Force, Lanzhou 730050, Gansu, China; School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, Gansu, China
| | - Xiaoqin Ha
- Department of Laboratory, Ninth Forty Hospital of the Chinese People's Liberation Army Joint Security Force, Lanzhou 730050, Gansu, China; School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, Gansu, China.
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Su W, Li W, Zhang Y, Wang K, Chen M, Chen X, Li D, Zhang P, Yu D. Screening and identification of the core immune-related genes and immune cell infiltration in severe burns and sepsis. J Cell Mol Med 2023. [PMID: 37060578 DOI: 10.1111/jcmm.17749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 04/17/2023] Open
Abstract
Severe burns often have a high mortality rate due to sepsis, but the genetic and immune crosstalk between them remains unclear. In the present study, the GSE77791 and GSE95233 datasets were analysed to identify immune-related differentially expressed genes (DEGs) involved in disease progression in both burns and sepsis. Subsequently, weighted gene coexpression network analysis (WGCNA), gene enrichment analysis, protein-protein interaction (PPI) network construction, immune cell infiltration analysis, core gene identification, coexpression network analysis and clinical correlation analysis were performed. A total of 282 common DEGs associated with burns and sepsis were identified. Kyoto Encyclopedia of Genes and Genomes pathway analysis identified the following enriched pathways in burns and sepsis: metabolic pathways; complement and coagulation cascades; legionellosis; starch and sucrose metabolism; and ferroptosis. Finally, six core DEGs were identified, namely, IL10, RETN, THBS1, FGF13, LCN2 and MMP9. Correlation analysis showed that some core DEGs were significantly associated with simultaneous dysregulation of immune cells. Of these, RETN upregulation was associated with a worse prognosis. The immune-related genes and dysregulated immune cells in severe burns and sepsis provide potential research directions for diagnosis and treatment.
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Affiliation(s)
- Wenxing Su
- Department of Plastic and Burns Surgery, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Wei Li
- Department of Urology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Yuanyuan Zhang
- Department of Medical Laboratory, Xindu District People's Hospital of Chengdu, Chengdu, China
| | - Kuan Wang
- Department of Cosmetic Plastic and Burns Surgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Maolin Chen
- Department of Cosmetic Plastic and Burns Surgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Xiaoming Chen
- Department of Plastic and Burns Surgery, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Dazhuang Li
- Department of Orthopedics, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Ping Zhang
- Department of Cosmetic Plastic and Burns Surgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Daojiang Yu
- Department of Plastic and Burns Surgery, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
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Hu Y, Wang J, Du W, Wu N, Wang S, Zhang C, Chen X, Shen C. Antiresistin Neutralizing Antibody Alleviates Doxorubicin-Induced Cardiac Injury in Mice. Dis Markers 2022; 2022:3040521. [PMID: 36561112 DOI: 10.1155/2022/3040521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/17/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022]
Abstract
Background Resistin is closely related to cardiovascular diseases, and this study is aimed at examining the role of resistin in doxorubicin- (DOX-) induced cardiac injury. Methods First, 48 mice were divided into 2 groups and treated with saline or DOX, and the expression of resistin at different time points was examined (N = 24). A total of 40 mice were pretreated with the antiresistin neutralizing antibody (nAb) or isotype IgG for 1 hour and further administered DOX or saline for 5 days. The mice were divided into 4 groups: saline-IgG, saline-nAb, DOX-IgG, and DOX-nAb (N = 10). Cardiac injury, cardiomyocyte apoptosis, inflammatory factors, and the biomarkers of M1 and M2 macrophages in each group were analyzed. Result DOX administration increased the expression of resistin. DOX treatment exacerbated the loss of body and heart weight and cardiac vacuolation in mice. The antiresistin nAb reversed these conditions, downregulated the expression of myocardial injury markers, and decreased apoptosis. In addition, the antiresistin nAb decreased p65 pathway activation, decreased M1 macrophage differentiation and the expression of related inflammatory factors, and increased M2 macrophage differentiation and the expression of related inflammatory factors. Conclusion The antiresistin nAb protected against DOX-induced cardiac injury by reducing cardiac inflammation and may be a promising target to relieve DOX-related cardiac injury.
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Yan X, Wu L, Gao M, Yang P, Yang J, Deng Y. Omentin inhibits the resistin‑induced hypertrophy of H9c2 cardiomyoblasts by inhibiting the TLR4/MyD88/NF‑κB signaling pathway. Exp Ther Med 2022; 23:292. [PMID: 35340867 DOI: 10.3892/etm.2022.11222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/24/2022] [Indexed: 11/05/2022] Open
Affiliation(s)
- Xiaoliang Yan
- Department of Cardiothoracic Surgery, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Lin Wu
- Department of Cardiology, The Affiliated Wenling Hospital of Wenzhou Medical University, Wenling, Zhejiang 317500, P.R. China
| | - Min Gao
- Department of Cardiovascular Surgery, The Affiliated Cardiovascular Hospital of Shanxi Medical University and Shanxi Cardiovascular Hospital (Institute), Taiyuan, Shanxi 030024, P.R. China
| | - Pengjie Yang
- Department of Cardiovascular Surgery, The Affiliated Cardiovascular Hospital of Shanxi Medical University and Shanxi Cardiovascular Hospital (Institute), Taiyuan, Shanxi 030024, P.R. China
| | - Jinjing Yang
- Department of Cardiology and Central Laboratory, Shanxi Cardiovascular Hospital, Taiyuan, Shanxi 030024, P.R. China
| | - Yongzhi Deng
- Department of Cardiovascular Surgery, The Affiliated Cardiovascular Hospital of Shanxi Medical University and Shanxi Cardiovascular Hospital (Institute), Taiyuan, Shanxi 030024, P.R. China
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Ku CW, Ho TJ, Huang CY, Chu PM, Ou HC, Hsieh PL. Cordycepin Attenuates Palmitic Acid-Induced Inflammation and Apoptosis of Vascular Endothelial Cells through Mediating PI3K/Akt/eNOS Signaling Pathway. Am J Chin Med 2021; 49:1703-1722. [PMID: 34488549 DOI: 10.1142/s0192415x21500804] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A well-known medicinal mushroom in the field of traditional Chinese medicine, Cordyceps sinensis, is a rare natural-occurring entomopathogenic fungus, and it typically grows at high altitudes on the plateau of the Himalayan. Previous studies indicated that cordycepin, the main bioactive chemical of Cordyceps sinensis, has very potent anticancer, anti-oxidant and anti-inflammatory activities. However, its protective effects against atherosclerotic changes in vascular endothelial cells have not been fully elucidated. In this study, we showed that pretreatment with cordycepin significantly attenuated palmitic acid (PA)-induced cytotoxicity, reactive oxygen species (ROS) generation, and inflammatory responses. We found that PA decreased phosphorylation of Akt, eNOS, and bioavailability of nitric oxide (NO), which in turn activated NF-[Formula: see text]B and the downstream inflammatory responses. All these detrimental events were markedly blocked by pretreatment with cordycepin. Moreover, cordycepin ameliorated destabilization of mitochondrial permeability, cytosolic calcium rises, and apoptotic features caused by PA. In addition, all these anti-inflammatory and anti-apoptosis effects of cordycepin were found to be inhibited by the PI3K and eNOS inhibitor, suggesting that its anti-atherosclerotic effects may partially be mediated by the PI3K/Akt/eNOS signaling pathway.
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Affiliation(s)
- Chang-Wen Ku
- Department of Chinese Medicine, Hualien Tzu Chi Hospital, Hualien, Taiwan.,Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Hualien, Taiwan
| | - Tsung-Jung Ho
- Department of Chinese Medicine, Hualien Tzu Chi Hospital, Hualien, Taiwan.,Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Hualien, Taiwan.,School of Post Baccalaureate Chinese Medicine, College of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Chih-Yang Huang
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.,Department of Biotechnology, Asia University, Taichung, Taiwan.,Department of Medical Research, China Medical University, Taichung, Taiwan.,Holistic Education Center, Tzu Chi University of Science and Technology, Hualien, Taiwan
| | - Pei-Ming Chu
- Department of Anatomy, School of Medicine, China Medical University, Taichung, Taiwan
| | - Hsiu-Chung Ou
- Department of Physical Therapy, College of Medical and Health Science, Asia University, Taichung, Taiwan
| | - Pei-Ling Hsieh
- Department of Anatomy, School of Medicine, China Medical University, Taichung, Taiwan
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Odei-Addo F, Ramlugon S, Levendal RA, Frost CL. Leonotis Leonurus improves the crosstalk between peripheral tissues both in vivo and in vitro. J Ethnopharmacol 2021; 267:113609. [PMID: 33242621 DOI: 10.1016/j.jep.2020.113609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 10/21/2020] [Accepted: 11/19/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Unravelling the anti-diabetic mechanism of action of L. leonurus at adipose, liver, muscle and pancreatic level. AIMS To investigate the mechanism of action of an organic extract of L. leonurus and marrubiin at the gene level in adipose, liver and muscle tissues of an obese rat model and in a co-culture model. MATERIALS AND METHODS Obese Wistar rats were fed a cafeteria diet for eight weeks, treated with an extract of L. Leonurus, marrubiin, sulfonylurea and aspirin for two weeks and the level of gene expression of selected markers were investigated across different tissues. The effects mediated by the different treatments were investigated in co-culture cell models involving 3T3-L1 (fat), Chang (liver), C2C12 (muscle) and INS-1 (pancreatic) cells under both normal and hyperglycemic conditions. RESULTS L. leonurus extract mediated a significant increase in PPAR gamma, glucokinase, FAS and UCP2 gene expression in adipose tissue, whilst the opposite was observed in the liver. At the muscle level, a significant increase in FAS gene expression was observed relative to the obese control rats. Furthermore, the extract as well as marrubiin, modulated improvements in the adipokine profile. The co-culture models showed that the effect mediated by the extract was dependent on, the tissue type as well as the glycemic conditions. CONCLUSIONS L. Leonurus extract as well as marrubiin exhibit anti-diabetic properties where the mechanism of action is mainly at the adipose tissue level. The increase in expression of the genes of interest mentioned above potentially play a protective role towards the liver and possibly towards the muscle tissues as well.
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Affiliation(s)
- F Odei-Addo
- Department of Biochemistry and Microbiology, Nelson Mandela University, P.O Box 77000, Port Elizabeth 6031, South Africa
| | - S Ramlugon
- Department of Biochemistry and Microbiology, Nelson Mandela University, P.O Box 77000, Port Elizabeth 6031, South Africa
| | - R-A Levendal
- Department of Biochemistry and Microbiology, Nelson Mandela University, P.O Box 77000, Port Elizabeth 6031, South Africa
| | - C L Frost
- Department of Biochemistry and Microbiology, Nelson Mandela University, P.O Box 77000, Port Elizabeth 6031, South Africa.
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Bai H, Wei S, Xie B, Wang Z, Li M, Qiao Z, Sun P, Wang W. Endothelial nitric oxide synthase (eNOS) mediates neointimal thickness in arteriovenous fistulae with different anastomotic angles in rats. J Vasc Access 2021; 23:403-411. [PMID: 33619996 DOI: 10.1177/1129729821996537] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND It is known that the anastomotic angle can influence neointimal hyperplasia and patency in arteriovenous fistulae (AVF). Endothelial nitric oxide synthase (eNOS) is released from the vascular endothelium and can inhibit neointimal hyperplasia. Therefore, here, we aimed to test the hypothesis that the manipulation of eNOS expression could influence neointimal thickness in a rat AVF model with different anastomosis angles. METHODS Rat carotid artery (inflow, CA) and jugular vein (outflow, JV) AVF were created with acute, blunt, or end-to-end (ETE) anastomosis angles. Aspirin was used to increase eNOS expression in the acute angle group, while N(G)-nitro-L-arginine methyl ester (L-name) was used to decrease eNOS expression in the obtuse angle group. The rats were sacrificed on day 21, and tissues were harvested and analyzed histologically and with immunostaining. RESULTS A larger anastomosis diameter (p < 0.016) and smaller neointimal area (p < 0.01) were observed in the obtuse and end-to-end (ETE) groups compared to in the acute group. In the acute angle group, there were more proliferating cell nuclear antigen (PCNA) and α-actin dual-positive cells (p < 0.0001) and fewer phospho (p)-eNOS-positive endothelial cells (p < 0.0001) in the neointima than in the obtuse and ETE angle groups. On treating the acute angle and blunt angle groups with aspirin and L-name, respectively, no significant differences in the neointima/lumen rate were observed (p = 0.6526) between the groups; however, there were fewer von Willebrand factor (vWF) and p-eNOS dual-positive cells in the obtuse angle group treated with L-name (p = 0.0045). CONCLUSIONS We demonstrated that eNOS plays an important role in neointimal hyperplasia in AVF with different anastomosis angles; further, eNOS could potentially be used as a therapeutic target in patients with AVF in the future.
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Affiliation(s)
- Hualong Bai
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.,Key Vascular Physiology and Applied Research Laboratory of Zhengzhou City, Henan, China
| | - Shunbo Wei
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Boao Xie
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhiwei Wang
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Mingxing Li
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhentao Qiao
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Peng Sun
- Department of Vascular and Endovascular Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wang Wang
- Department of Physiology, Medical school of Zhengzhou University, Zhengzhou, Henan, China.,Key Vascular Physiology and Applied Research Laboratory of Zhengzhou City, Henan, China
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Chen J, Wang L, Liu WH, Shi J, Zhong Y, Liu SJ, Liu SM. Aspirin protects human coronary artery endothelial cells by inducing autophagy. Physiol Int 2020; 107:294-305. [PMID: 32750030 DOI: 10.1556/2060.2020.00029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 05/13/2020] [Indexed: 11/19/2022]
Abstract
Although the use of aspirin has substantially reduced the risks of cardiovascular events and death, its potential mechanisms have not been fully elucidated. In a previous study, we found that aspirin triggers cellular autophagy. In the present study, we aimed to determine the protective effects of aspirin on human coronary artery endothelial cells (HCAECs) and explore its underlying mechanisms. HCAECs were treated with oxidized low-density lipoprotein (ox-LDL), angiotensin II (Ang-II), or high glucose (HG) with or without aspirin stimulation. The expression levels of endothelial nitric oxide (NO) synthase (eNOS), p-eNOS, LC3, p62, phosphor-nuclear factor kappa B (p-NF-κB), p-p38 mitogen-activated protein kinase (p-p38 MAPK), and Beclin-1 were detected via immunoblotting analysis. Concentrations of soluble intercellular adhesion molecule-1 (sICAM-1) and soluble vascular cell adhesion molecule-1 (sVCAM-1) were measured via ELISA. NO levels were determined using the Griess reagent. Autophagic flux was tracked by tandem mRFP-GFP-tagged LC3. Results showed that aspirin increased eNOS level and reduced injury to the endothelial cells (ECs) caused by ox-LDL, Ang-II, and HG treatment in a dose-dependent manner. Aspirin also increased the LC3II/LC3I ratio, decreased p62 expression, and enhanced autophagic flux (autophagosome and autolysosome puncta) in the HCAECs. p-NF-κB and p-p38 mitogen-activated protein kinase inhibition, sVCAM-1 and sICAM-1 secretion, and eNOS activity promotion by aspirin treatment were found to be dependent on Beclin-1. These results suggested that aspirin can protect ECs from ox-LDL-, Ang-II-, and HG-induced injury by activating autophagy in a Beclin-1-dependent manner.
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Affiliation(s)
- J Chen
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - L Wang
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - W H Liu
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - J Shi
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - Y Zhong
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
| | - S J Liu
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, PR China
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Conic RR, Damiani G, Schrom KP, Ramser AE, Zheng C, Xu R, McCormick TS, Cooper KD. Psoriasis and Psoriatic Arthritis Cardiovascular Disease Endotypes Identified by Red Blood Cell Distribution Width and Mean Platelet Volume. J Clin Med 2020; 9:E186. [PMID: 31936662 DOI: 10.3390/jcm9010186] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/27/2019] [Accepted: 01/03/2020] [Indexed: 12/12/2022] Open
Abstract
In a subset of psoriasis (PsO) and psoriatic arthritis (PsA) patients, the skin and/or joint lesions appear to generate biologically significant systemic inflammation. Red cell distribution width (RDW) and mean platelet volume (MPV) are readily available clinical tests that reflect responses of the bone marrow and/or plasma thrombogenicity (e.g., inflammation), and can be markers for major adverse cardiac events (MACE). We aimed to evaluate if RDW and MPV may be employed as inexpensive, routinely obtained biomarkers in predicting myocardial infarction (MI), atrial fibrillation (AF), and chronic heart failure (CHF) in psoriatic and psoriatic arthritis patients. The study was divided into two parts: (a) case control study employing big data (Explorys) to assess MPV and RDW in psoriasis, psoriatic arthritis and control cohorts; (b) a clinical observational study to validate the predictive value of RDW and to evaluate RDW response to anti-psoriatic therapies. We used Explorys, an aggregate electronic database, to identify psoriatic patients with available MPV and RDW data and compared them to gender and age matched controls. The incidence of myocardial infarction (MI), atrial fibrillation (AF), and chronic heart failure (CHF) was highest among patients with both elevated RDW and MPV, followed by patients with high RDW and normal MPV. RDW elevation among PsA patients was associated with an increased risk of MI, AF, and CHF. In a local clinical cohort, high RDWs were concentrated in a subset of patients who also had elevated circulating resistin levels. Among a small subset of participants who were treated with various systemic and biologic therapies, and observed over a year, and in whom RDW was elevated at baseline, a sustained response to therapy was associated with a decrease in RDW. RDW and MPV, tests commonly contained within routine complete blood count (CBC), may be a cost-effective manner to identify PsO and PsA patients at increased risk of MACE.
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Nowicki GJ, Ślusarska B, Prystupa A, Polak M, Czubaj-Kowal M, Rudnicka-Drożak E. Oxidative/Antioxidative Status in Patients after Myocardial Infarction and in Those without Cardiovascular Event Depending on Anthropometric Factors Defining Body Weight. Int J Environ Res Public Health 2019; 16:E4077. [PMID: 31652762 DOI: 10.3390/ijerph16214077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/14/2019] [Accepted: 10/19/2019] [Indexed: 01/04/2023]
Abstract
Obesity is one of the factors leading to the development of atherosclerosis. This metabolic disorder is associated with an increased production of reactive oxygen species, which affect the oxidative stress levels. The aim of this study was to evaluate oxidative/antioxidative status and to investigate the correlation between redox markers and anthropometric parameters and body composition in adult patients after myocardial infarction and in individuals without a cardiovascular event in the past. Descriptive data on socio-demographic, clinical, and anthropometric features and blood samples were collected and categorized into two equal groups: after myocardial infarction (study group (SG), n = 80) and without a cardiovascular event (control group (CG), n = 80). The oxidative/antioxidative status was assessed in plasma on the basis of total oxidative/capacitive status (PerOx), total antioxidative status/capacity (ImAnOx), and oxidized low-density lipoprotein (oxLDL). The oxLDL was significantly higher in the CG group compared to the SG group (p = 0.02). No significant differences were found with regard to PerOx and ImAnOx values between the groups studied. A significant positive correlation between PerOx and percentage of adipose tissue (FM%) and body adiposity index (BAI) was found in the two studied groups. ImAnOx significantly positively correlated with visceral adiposity indexes(VAIs) in SG and FM% in CG. OxLDL negatively correlated with body mass index and waist to hip circumference ratio in CG. The total oxidative/antioxidative status is related to the amount of adipose tissue and the BAIs of the subjects. It was observed that it correlates more frequently with the visceral distribution of body fat.
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Paseban M, Mohebbati R, Niazmand S, Sathyapalan T, Sahebkar A. Comparison of the Neuroprotective Effects of Aspirin, Atorvastatin, Captopril and Metformin in Diabetes Mellitus. Biomolecules 2019; 9:biom9040118. [PMID: 30934759 PMCID: PMC6523359 DOI: 10.3390/biom9040118] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/13/2019] [Accepted: 03/21/2019] [Indexed: 12/23/2022] Open
Abstract
Objective: The aim of this study was to investigate the effect of combined intake of a high dose of aspirin, atorvastatin, captopril and metformin on oxidative stress in the brain cortex and hippocampus of streptozotocin (STZ)-induced diabetic rats. Material and methods: Rats were randomly divided into the following 11 groups: control and diabetic (D), as well as 9 groups that were treated with metformin (M, 300 mg/kg) or aspirin (ASA, 120 mg/kg) alone or in different combinations with captopril (C, 50 mg/kg) and/or atorvastatin (AT, 40 mg/kg) as follows: (D + M), (D + ASA), (D + M + ASA), (D + M + C), (D + M + AT), (D + M + C + ASA), (D + M + C + AT), (D + M + AT + ASA) and (D + M + C + AT + ASA). The rats in treatment groups received drugs by gavage daily for six weeks. Serum lipid profile and levels of oxidative markers in the brain cortex and hippocampus tissues were evaluated. Results: The levels of malondialdehyde in the brain cortex and hippocampus in all the treated groups decreased significantly (p < 0.05). There was a significant increase in the total thiol concentration as well as catalase activity in treated rats in (M + AT), (M + C + ASA), (M + C + AT), (M + AT + ASA) and (M + C + AT + ASA) groups in cortex and hippocampus in comparison with the diabetic rats (p < 0.05). Also, the superoxide dismutase activity in all treated rats with medications was significantly increased compared to the diabetic rats (p < 0.05–0.01). Conclusion: Our findings showed that the combined use of high-dose aspirin, metformin, captopril and atorvastatin potentiated their antioxidant effects on the brain, and hence could potentially improve cognitive function with their neuroprotective effects on hippocampus.
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Affiliation(s)
- Maryam Paseban
- Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran.
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran.
| | - Reza Mohebbati
- Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran.
| | - Saeed Niazmand
- Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran.
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran.
| | - Thozhukat Sathyapalan
- Department of Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, Hull, HU3 2RW, UK.
| | - Amirhossein Sahebkar
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad 9177948564, Iran.
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of MedicalSciences; Mashhad 9177948564, Iran.
- School of Pharmacy, Mashhad University of Medical Sciences; Mashhad 9177948564, Iran.
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Zhang H, Lu J, Jiao Y, Chen Q, Li M, Wang Z, Yu Z, Huang X, Yao A, Gao Q, Xie W, Li L, Yao P. Aspirin Inhibits Natural Killer/T-Cell Lymphoma by Modulation of VEGF Expression and Mitochondrial Function. Front Oncol 2019; 8:679. [PMID: 30693272 PMCID: PMC6339948 DOI: 10.3389/fonc.2018.00679] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 12/24/2018] [Indexed: 12/21/2022] Open
Abstract
Extranodal nasal-type natural killer/T-cell lymphoma (NKTCL) is an Epstein-Barr virus (EBV)-associated lymphoma with a strong tendency relapse or be refractory in response to chemotherapy. Development of a new strategy for NKTCL treatment is still quite necessary. In this study, we found that aspirin treatment suppresses VEGF expression in NKTCL SNK-6 cells. Further investigation showed that aspirin treatment increases histone methylation in the range of −100~0 that is proximal to the transcription start site on the VEGF promoter, subsequently decreasing the binding ability of Sp1 to the VEGF promoter with VEGF suppression. Furthermore, aspirin treatment modulates mitochondrial function with increased ROS formation and apoptosis in NKTCL cells. Aspirin treatment alone slightly inhibits NKTCL SNK-6 tumor growth and EBV replication; while in the presence of histone deacetylase inhibitor (HDACi) chidamide (CDM), aspirin significantly suppresses the VEGF signaling pathway with increased ROS overgeneration and EBV inhibition. We also showed that with the addition of chidamide, aspirin significantly suppresses NKTCL tumor growth in both in vitro cell culture and in vivo mouse model with prolonged mouse survival. This is the first time that the potential mechanism for aspirin-mediated VEGF suppression and anti-tumor effect has been discovered, and this study provides a new strategy for anti-tumor drug development for NKTCL treatment based on aspirin-mediated targeting of the VEGF signaling pathway and ROS formation.
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Affiliation(s)
- Hongyu Zhang
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Jianping Lu
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen, China
| | - Yun Jiao
- Department of Pediatrics, Hainan Maternal and Child Health Hospital, Haikou, China
| | - Qi Chen
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Min Li
- Institute of Rehabilitation Center, Tongren Hospital of Wuhan University, Wuhan, China
| | - Zichen Wang
- Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen, China
| | - Zhendong Yu
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Xiaodong Huang
- Institute of Rehabilitation Center, Tongren Hospital of Wuhan University, Wuhan, China
| | - Athena Yao
- Institute of Rehabilitation Center, Tongren Hospital of Wuhan University, Wuhan, China
| | - Qiong Gao
- Department of Gynecology, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Weiguo Xie
- Institute of Rehabilitation Center, Tongren Hospital of Wuhan University, Wuhan, China
| | - Ling Li
- Department of Pediatrics, Hainan Maternal and Child Health Hospital, Haikou, China
| | - Paul Yao
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, China.,Department of Child Psychiatry, Kangning Hospital of Shenzhen, Shenzhen, China.,Department of Pediatrics, Hainan Maternal and Child Health Hospital, Haikou, China.,Institute of Rehabilitation Center, Tongren Hospital of Wuhan University, Wuhan, China
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14
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Li HM, Zhang TP, Li XM, Pan HF, Ma DC. Association of single nucleotide polymorphisms in resistin gene with rheumatoid arthritis in a Chinese population. J Clin Lab Anal 2018; 32:e22595. [PMID: 29978502 DOI: 10.1002/jcla.22595] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 05/31/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Recent evidences have revealed that resistin is associated with the development of rheumatoid arthritis (RA). The aim of this study was to analyze the association of resistin gene single nucleotide polymorphisms (SNPs) with RA susceptibility. METHODS In this study, we finally analyzed three resistin SNPs (rs1862513, rs3745368, and rs3745367) in 278 RA patients and 276 normal controls recruited from Chinese population using TaqMan SNP genotyping assays. RESULTS There were no significant differences for the distribution of allele and genotype frequencies of these three SNPs between RA patients and normal controls (all P > .05). The genotype effects of dominant, recessive models were also analyzed, and no significant association was detected (all P > .05). Haplotype analysis suggested that the frequency of haplotype GAA was notably lower in RA patients in comparison with normal controls (OR = 0.317, 95% CI: 0.125-0.807, P = .011). CONCLUSION In a ward, our results indicated that resistin gene polymorphisms might affect the genetic predisposition of RA in Chinese population.
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Affiliation(s)
- Hong-Miao Li
- Anhui Provincial TB Institute, Hefei, Anhui, China
| | - Tian-Ping Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Xiao-Mei Li
- Department of Rheumatology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Dong-Chun Ma
- Anhui Provincial TB Institute, Hefei, Anhui, China
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15
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Abstract
Ischemic stroke remains an important cause of disability and mortality. Hypertension is a critical risk factor for the development of ischemic stroke. Control of risk factors, including hypertension, is therefore important for the prevention of ischemic stroke. Linalyl acetate (LA) has been reported to have therapeutic effects in ischemic stroke by modulating intracellular Ca2+ concentration and having anti-oxidative properties. The preventive efficacy of LA has not yet been determined. This study therefore investigated the preventive efficacy of LA in rat aortas exposed to hypertension related-ischemic injury, and the mechanism of action of LA.Hypertension was induced in vivo following ischemic injury to the aorta induced by oxygen-glucose deprivation and reoxygenation in vitro. Effects of LA were assayed by western blotting, by determining concentrations of lactate dehydrogenase (LDH) and reactive oxygen species (ROS) and by vascular contractility assays. LA significantly reduced systolic blood pressure in vivo. In vitro, LA suppressed ischemic injury-induced expression of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunit p47phox, as well as ROS production, LDH release, and ROS-induced endothelial nitric oxide synthase suppression. These findings indicate that LA has anti-hypertensive properties that can prevent hypertension-related ischemic injury and can prevent NADPH oxidase-induced production of ROS.
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Affiliation(s)
- Yu Shan Hsieh
- Department of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea
| | - Soonho Kwon
- Department of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea
| | - Hui Su Lee
- Department of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea
| | - Geun Hee Seol
- Department of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea
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Sun Y, Jiang C, Jiang J, Qiu L. Dexmedetomidine protects mice against myocardium ischaemic/reperfusion injury by activating an AMPK/PI3K/Akt/eNOS pathway. Clin Exp Pharmacol Physiol 2018; 44:946-953. [PMID: 28556946 DOI: 10.1111/1440-1681.12791] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 05/24/2017] [Accepted: 05/26/2017] [Indexed: 11/28/2022]
Abstract
Acute myocardial ischaemia/reperfusion (MIR) injury leads to severe arrhythmias and has a high rate of lethality. In the present study, we aim to determine the effect of dexmedetomidine (Dex) on heart injury parameters following MIR surgery. We examined the effects of Dex on heart function parameters and infarct size following MIR surgery. Proinflammatory cytokines, oxidative products and anti-oxidative enzymes in the myocardium were measured to evaluate the anti-inflammatory and anti-oxidative effects of Dex. The role of the adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK)/phosphatidylino-sitol 3-kinase (PI3k)/Akt/endothelial nitric oxide synthase (eNOS) pathway was investigated using their inhibitors. The alteration of haemodynamic parameters, histopathological results, and infarct size caused by MIR was attenuated by Dex. The interleukine-1 beta (IL-1β), IL-6, tumour necrosis factor-a (TNF-α) and myeloperoxidase (MPO) were all significantly decreased. Anti-oxidative enzymes superoxide dismutase (SOD), catalase and glutathione peroxidase (GPx) were restored by Dex. Oxidative products8-OHdG, MDA and protein carbonyl were all decreased by Dex (P<.05). Dex activated AMPK expression, eNOS and Akt phosphorylation. The influence of Dex on cardiac function was reversed by the inhibitors of the eNOS, AMPK and PI3K/Akt pathways. These results indicate that Dex protected the cardiac functional, histological changes, inflammation and oxidative stress induced by MIR. Our results present a novel signalling mechanism that Dex protects MIR injury by activating an AMPK/PI3K/Akt/eNOS pathway.
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Affiliation(s)
- Yanjun Sun
- Department of Thoracic and Cardiovascular Surgery, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Chuan Jiang
- Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jun Jiang
- Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lisheng Qiu
- Department of Thoracic and Cardiovascular Surgery, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
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17
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Yang JJ, Li P, Wang F, Liang WJ, Ma H, Chen Y, Ma ZM, Li QZ, Peng QS, Zhang Y, Wang SX. Activation of activator protein 2 alpha by aspirin alleviates atherosclerotic plaque growth and instability in vivo. Oncotarget 2018; 7:52729-52739. [PMID: 27391154 PMCID: PMC5288144 DOI: 10.18632/oncotarget.10400] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 06/17/2016] [Indexed: 11/25/2022] Open
Abstract
AIMS Aspirin has been used for the secondary prevention and treatment of cardiovascular disease for several decades. We investigated the roles of transcriptional factor activator protein 2α (AP-2α) in the beneficial effects of aspirin in the growth and vulnerability of atherosclerotic plaque. METHODS AND RESULTS In mice deficient of apolipoprotein E (Apoe-/-), aspirin (20, 50 mg/kg/day) suppressed the progression of atherosclerosis in aortic roots and increased the plaque stability in carotid atherosclerotic plaques induced by collar-placement. In vivo lentivirus-mediated RNA interference of AP-2α reversed the inhibitory effects of aspirin on atherosclerosis in Apoe-/- mice. Mechanically, aspirin increased AP-2α phosphorylation and its activity, upregulated IkBα mRNA and protein levels, and reduced oxidative stress in cultured vascular smooth muscle cells. Furthermore, deficiency of AP-2α completely abolished aspirin-induced upregulation of IkBα levels and inhibition of oxidative stress in Apoe-/- mice. Clinically, conventional doses of aspirin increased AP-2α phosphorylation and IkBα protein expression in humans subjects. CONCLUSION Aspirin activates AP-2α to upregulate IkBα gene expression, resulting in attenuations of plaque development and instability in atherosclerosis.
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Affiliation(s)
- Jing-Jing Yang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, School of Medicine, Shandong University, Jinan, China
| | - Peng Li
- Department of Pharmacology, College of Pharmacy, Xinxiang Medical University, Xinxiang, China
| | - Fu Wang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, School of Medicine, Shandong University, Jinan, China
| | - Wen-Jing Liang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, School of Medicine, Shandong University, Jinan, China
| | - Hui Ma
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, School of Medicine, Shandong University, Jinan, China
| | - Yuan Chen
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, School of Medicine, Shandong University, Jinan, China
| | - Zhi-Min Ma
- Division of Endocrinology, The Second Affiliated Hospital, Soochow University, Suzhou, China
| | - Quan-Zhong Li
- Division of Cardiology, The Affiliated Hospital, Guilin Medical University, Guilin, China
| | - Qi-Sheng Peng
- Key Laboratory for Zoonosis Research, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun, China
| | - Yun Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, School of Medicine, Shandong University, Jinan, China
| | - Shuang-Xi Wang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, School of Medicine, Shandong University, Jinan, China.,Department of Pharmacology, College of Pharmacy, Xinxiang Medical University, Xinxiang, China
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19
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Liu PP, Liu HH, Sun SH, Shi XX, Yang WC, Su GH, Zhao J. Aspirin alleviates cardiac fibrosis in mice by inhibiting autophagy. Acta Pharmacol Sin 2017; 38:488-497. [PMID: 28216620 DOI: 10.1038/aps.2016.143] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 11/07/2016] [Indexed: 12/12/2022] Open
Abstract
Aspirin (ASA) is a cardioprotective drug with anti-cardiac fibrosis action in vivo. This study was aimed to clarify the anti-cardiac fibrosis action of ASA and the underlying mechanisms. Two heart injury models (injection of isoproterenol and ligation of the left anterior descending branch) were used in mice to induce cardiac fibrosis. The animals were treated with ASA (10 mg·kg-1·d-1, ig) for 21 and 14 d, respectively. ASA administration significantly improved cardiac function, and ameliorated heart damage and fibrosis in the mice. The mechanisms underlying ASA's anti-fibrotic effect were further analyzed in neonatal cardiac fibroblasts (CFs) exposed to hypoxia in vitro. ASA (0.5-5 mmol/L) dose-dependently inhibited the proliferation and Akt phosphorylation in the CFs. In addition, ASA significantly inhibited CF apoptosis, and decreased the levels of apoptosis markers (cleaved caspase 3 and Parp1), which might serve as a side effect of anti-fibrotic effect of ASA. Furthermore, ASA dose-dependently inhibited the autophagy in the CFs, as evidenced by the reduced levels of autophagy marker LC3-II. The autophagy inhibitor Pepstatin A (PepA) promoted the inhibitory effect of ASA on CF proliferation, whereas the autophagy inducer rapamycin rescued ASA-caused inhibition of CF proliferation, suggesting an autophagy-dependent anti-proliferative effect of ASA. Both p38 inhibitor SB203580 and ROS scavenger N-acetyl-cysteine (NAC) significantly decreased Akt phosphorylation in CFs in the basal and hypoxic situations, but they both significantly increased LC3-II levels in the CFs. Our results suggest that an autophagy- and p38/ROS-dependent pathway mediates the anti-cardiac fibrosis effect of ASA in CFs. As PepA and SB203580 did not affect ASA-caused inhibition of CF apoptosis, the drug combination will enhance ASA's therapeutic effects.
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20
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Hashem RM, Rashed LA, Hassanin KMA, Hetta MH, Ahmed AO. Effect of 6-gingerol on AMPK- NF-κB axis in high fat diet fed rats. Biomed Pharmacother 2017; 88:293-301. [PMID: 28113081 DOI: 10.1016/j.biopha.2017.01.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 12/17/2016] [Accepted: 01/05/2017] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Adenosine monophosphate (AMP)-activated protein kinase (AMPK) plays a central role in metabolic homeostasis and regulation of inflammatory responses through attenuation of nuclear factor kappa-B (NF-κB), Thus AMPK may be a promising pharmacologic target for the treatment of various chronic inflammatory diseases. We examined the effect of 6-gingerol, an active ingredient of ginger on AMPK-NF-κB pathway in high fat diet (HFD) rats in comparison to fish oil. METHODS Protein levels of AMPK-α1 and phosphorylated AMPK-α1 were measured by western blot while Sirtuin 6 (Sirt-6), resistin and P65 were estimated by RT-PCR, TNF-α was determined by ELISA, FFAs were estimated chemically as well as the enzymatic determination of the metabolic parameters. RESULTS 6-Gingerol substantially enhanced phosphorylated AMPK-α1 more than fish oil and reduced the P65 via upregulation of Sirt-6 and downregulation of resistin, and resulted in attenuation of the inflammatory molecules P65, FFAs and TNF-α more than fish oil treated groups but in an insignificant statistical manner, those effects were accompanied by a substantial hypoglycemic effect. CONCLUSION Gingerol treatment effectively modulated the state of inflammatory privilege in HFD group and the metabolic disorders via targeting the AMPK-NF-κB pathway, through an increment in the SIRT-6 and substantial decrement in resistin levels.
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Affiliation(s)
- Reem M Hashem
- Department of Biochemistry, Faculty of Pharmacy, Beni-Suef University, Beni Suef, Egypt
| | - Laila A Rashed
- Department of Biochemistry, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Kamel M A Hassanin
- Department of Biochemistry, Faculty of Veterinary Medicine, Minia University, El Minia, Egypt
| | - Mona H Hetta
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Asmaa O Ahmed
- Department of Biochemistry, Faculty of Pharmacy, Beni-Suef University, Beni Suef, Egypt.
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Nagaev I, Andersen M, Olesen MK, Nagaeva O, Wikberg J, Mincheva-Nilsson L, Andersen GN. Resistin Gene Expression is Downregulated in CD4(+) T Helper Lymphocytes and CD14(+) Monocytes in Rheumatoid Arthritis Responding to TNF-α Inhibition. Scand J Immunol 2017; 84:229-36. [PMID: 27434862 DOI: 10.1111/sji.12464] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 07/16/2016] [Indexed: 01/04/2023]
Abstract
Rheumatoid arthritis (RA) is caused by complex interactions between immune cells and sustained by Th1 response cytokines. Resistin [resistance to insulin; (RETN)] is an inflammatory cytokine, first discovered in murine adipocytes. In man, RETN is mainly secreted by monocytes. The distinct role of RETN in the immune reaction is uncertain; however, RETN has pro-inflammatory, pro-fibrotic and possibly tolerogenic properties. The aim was to assess the reaction of RETN gene expression to TNF-α inhibition (I) in pathogenetic immune cell subsets in RA, in the context of Th1, inflammatory and regulatory cytokine gene expressions. Accordingly, we measured RETN, IFN-γ, TNF-β, IL-1β, TNF-α, TGF-β and IL-10 gene expressions in CD14(+) monocytes, CD4(+) T helper (Th) lymphocytes (ly), CD8(+) T cytotoxic (Tc) ly and CD19(+) B ly in active RA before and 3 months after start of TNF-αI. Leucocyte subsets were separated by specific monoclonal antibody-covered beads, RNA extracted and levels of RETN, Th1 response, inflammatory and regulatory cytokine mRNAs measured by quantitative reverse transcription-polymerase chain reaction technique. We found that TNF-αI caused a significant downregulation of RETN gene expression in CD14(+) monocytes and CD4(+) Th ly and was unchanged in CD8(+) Tc ly and CD19(+) B ly. Both in active RA and during TNF-αI, RETN mRNA levels were significantly higher in CD14(+) monocytes than in all other examined cell types. In monocytes, fold change in RETN and TGF-β gene expressions upon TNF-αI correlated significantly. Our findings indicate that RETN has pro-inflammatory as well as proresolving roles in active RA.
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Affiliation(s)
- I Nagaev
- Division of Clinical Immunology, Department of Clinical Microbiology, Norrland's University Hospital, Umeå, Sweden
| | - M Andersen
- Department of Medicine, North Denmark Regional Hospital/Department of Health Science and Technolgy, University of Aalborg, Aalborg, Denmark
| | - M K Olesen
- Department of Medicine, North Denmark Regional Hospital/Department of Health Science and Technolgy, University of Aalborg, Aalborg, Denmark
| | - O Nagaeva
- Division of Clinical Immunology, Department of Clinical Microbiology, Norrland's University Hospital, Umeå, Sweden
| | - J Wikberg
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - L Mincheva-Nilsson
- Division of Clinical Immunology, Department of Clinical Microbiology, Norrland's University Hospital, Umeå, Sweden
| | - G N Andersen
- Department of Rheumatology, North Denmark Regional Hospital/Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
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Hashemi M, Baktash F, Heshmat-Ghahdarijani K, Zarean E, Bahrani S. Evaluation the effect of low-dose aspirin on endothelial dysfunction in preeclamptic patients. J Res Med Sci 2016; 21:131. [PMID: 28331517 PMCID: PMC5348837 DOI: 10.4103/1735-1995.196613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/14/2016] [Accepted: 09/11/2016] [Indexed: 11/04/2022]
Abstract
Background: Preeclampsia complicates up to 3% of pregnancies in developing countries. Endothelial dysfunction plays an important role in pathogenesis of preeclampsia. In this study, we aim to evaluate the effect of low-dose aspirin on endothelial dysfunction in preeclamptic patients. Materials and Methods: in this triple-blind randomized clinical trial, enrolled patients were divided randomly into two groups. Acetylsalicylic acid (ASA) 80 mg or placebo will be taken daily by oral administration from the initiation of diagnosis until 2 months after delivery. Every patient's flow-mediated dilation (FMD) were evaluated at the beginning of study and 2 months after delivery with the same experienced operator at a same period of the time (3–5 pm) by high-resolution B-mode ultrasonographic. T-test or Mann–Whitney test was used in the comparison of means between the intervention and placebo groups. To compare FMD in each group, before and after the intervention, paired t-test was used. Results: Mean value of FMD in intervention (9.61 ± 5.58) and control group (9.40 ± 4.33) have no significant differences before drug consumption (P = 0.089). FMD in intervention group significantly increased after ASA consumption ([9.61 ± 5.58 vs. 13.65 ± 7.91] [P = 0.044]). Conclusion: Increase mean of FMD in intervention group shows that this supplement can improve endothelial function.
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Affiliation(s)
- Mohammad Hashemi
- Department of Cardiology, School of Medicine, Medical Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Forouz Baktash
- Department of Obstetrics and Gynecology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kiyan Heshmat-Ghahdarijani
- Department of Cardiology, School of Medicine, Medical Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elahe Zarean
- Department of Obstetrics and Gynecology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saeide Bahrani
- Department of Cardiology, School of Medicine, Medical Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
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He Y, Bai XJ, Li FX, Fan LH, Ren J, Liang Q, Li HB, Bai L, Tian HY, Fan FL, Tian G, Ma AQ, Chen J. Resistin may be an independent predictor of subclinical atherosclerosis formale smokers. Biomarkers 2016; 22:291-295. [PMID: 27775434 DOI: 10.1080/1354750x.2016.1252953] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
To investigate whether resistin is associated with early atherosclerosis in male smokers. The present study consecutively enrolled 50 male smokers. Their serum resistin contents were detected with enzyme linked immunosorbent assay (ELISA), and subclinical atherosclerosis indices, including carotid inner middle thickness (IMT) and arterial elasticity indices (C1 and C2), were measured. The association between serum resistin levels and IMT, C1 and C2 were respectively evaluated with the Pearson's correlation coefficient method. The results showed that the serum resistin level had a positive association with IMT (r = 0.307, p = .030), but were both inversely associated with C1 (r = -0.440, p = .001) and C2 (r = -0.381, p = .006). These associations remained significant even after adjustment for cardiovascular confounders. In conclusion, serum resistin concentration was independently associated with early atherosclerosis in male smokers.
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Affiliation(s)
- Ying He
- a Institute of Endemic Disease, Xi'an Jiao Tong University College of Medicine , Xi'an City , Shaanxi Province , China
| | - Xiao-Jun Bai
- b Department of Cardiology , The First Affiliated Hospital of Xi'an Jiao Tong University , Shaanxi Province , China
| | - Fen-Xia Li
- c Department of Internal Medicine , The Second Affiliated Hospital of Xi'an Medical the College , Xi'an City , Shaanxi Province , China
| | - Li-Hong Fan
- b Department of Cardiology , The First Affiliated Hospital of Xi'an Jiao Tong University , Shaanxi Province , China
| | - Jie Ren
- b Department of Cardiology , The First Affiliated Hospital of Xi'an Jiao Tong University , Shaanxi Province , China
| | - Qi Liang
- b Department of Cardiology , The First Affiliated Hospital of Xi'an Jiao Tong University , Shaanxi Province , China
| | - Hong-Bing Li
- b Department of Cardiology , The First Affiliated Hospital of Xi'an Jiao Tong University , Shaanxi Province , China
| | - Ling Bai
- b Department of Cardiology , The First Affiliated Hospital of Xi'an Jiao Tong University , Shaanxi Province , China
| | - Hong-Yan Tian
- b Department of Cardiology , The First Affiliated Hospital of Xi'an Jiao Tong University , Shaanxi Province , China
| | - Fen-Ling Fan
- b Department of Cardiology , The First Affiliated Hospital of Xi'an Jiao Tong University , Shaanxi Province , China
| | - Gang Tian
- b Department of Cardiology , The First Affiliated Hospital of Xi'an Jiao Tong University , Shaanxi Province , China
| | - Ai-Qun Ma
- b Department of Cardiology , The First Affiliated Hospital of Xi'an Jiao Tong University , Shaanxi Province , China
| | - Jinghong Chen
- a Institute of Endemic Disease, Xi'an Jiao Tong University College of Medicine , Xi'an City , Shaanxi Province , China
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Ming W, Lu G, Xin S, Huanyu L, Yinghao J, Xiaoying L, Chengming X, Banjun R, Li W, Zifan L. Mitochondria related peptide MOTS-c suppresses ovariectomy-induced bone loss via AMPK activation. Biochem Biophys Res Commun 2016; 476:412-419. [PMID: 27237975 DOI: 10.1016/j.bbrc.2016.05.135] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 05/25/2016] [Indexed: 12/11/2022]
Abstract
Therapeutic targeting bone loss has been the focus of the study in osteoporosis. The present study is intended to evaluate whether MOTS-c, a novel mitochondria related 16 aa peptide, can protect mice from ovariectomy-induced osteoporosis. After ovary removal, the mice were injected with MOTS-c at a dose of 5 mg/kg once a day for 12 weeks. Our results showed that MOTS-c treatment significantly alleviated bone loss, as determined by micro-CT examination. Mechanistically, we found that the receptor activator of nuclear factor-κB ligand (RANKL) induced osteoclast differentiation was remarkably inhibited by MOTS-c. Moreover, MOTS-c increased phosphorylated AMPK levels, and compound C, an AMPK inhibitor, could partially abrogate the effects of the MOTS-c on osteoclastogenesis. Thus, our findings provide evidence that MOTS-c may exert as an inhibitor of osteoporosis via AMPK dependent inhibition of osteoclastogenesis.
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Affiliation(s)
- Wei Ming
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, Fourth Military Medical University, Xi'an 710032, PR China; Department of Pharmacology, Xi'an Medical University, Xi'an 710021, PR China.
| | - Gan Lu
- Department of Gynecology of Shaanxi Provincial People's Hospital, Xi'an, 710068, PR China.
| | - Sha Xin
- Institute of Orthopedic Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China.
| | - Lu Huanyu
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, PR China.
| | - Jiang Yinghao
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, Fourth Military Medical University, Xi'an 710032, PR China.
| | - Lei Xiaoying
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, Fourth Military Medical University, Xi'an 710032, PR China.
| | - Xu Chengming
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, Fourth Military Medical University, Xi'an 710032, PR China.
| | - Ruan Banjun
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, Fourth Military Medical University, Xi'an 710032, PR China.
| | - Wang Li
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, Fourth Military Medical University, Xi'an 710032, PR China.
| | - Lu Zifan
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, Fourth Military Medical University, Xi'an 710032, PR China.
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25
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Prasad S, Gupta SC, Aggarwal BB. Serendipity in Cancer Drug Discovery: Rational or Coincidence? Trends Pharmacol Sci 2016; 37:435-450. [PMID: 27083322 DOI: 10.1016/j.tips.2016.03.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 03/16/2016] [Accepted: 03/21/2016] [Indexed: 01/13/2023]
Abstract
Novel drug development leading to final approval by the US FDA can cost as much as two billion dollars. Why the cost of novel drug discovery is so expensive is unclear, but high failure rates at the preclinical and clinical stages are major reasons. Although therapies targeting a given cell signaling pathway or a protein have become prominent in drug discovery, such treatments have done little in preventing or treating any disease alone because most chronic diseases have been found to be multigenic. A review of the discovery of numerous drugs currently being used for various diseases including cancer, diabetes, cardiovascular, pulmonary, and autoimmune diseases indicates that serendipity has played a major role in the discovery. In this review we provide evidence that rational drug discovery and targeted therapies have minimal roles in drug discovery, and that serendipity and coincidence have played and continue to play major roles. The primary focus in this review is on cancer-related drug discovery.
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Affiliation(s)
- Sahdeo Prasad
- Cytokine Research Laboratory, Department of Experimental Therapeutics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Subash C Gupta
- Department of Biochemistry, Institute of Science, Banaras Hindu University, 221005 India
| | - Bharat B Aggarwal
- Cytokine Research Laboratory, Department of Experimental Therapeutics, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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26
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Codoñer-Franch P, Alonso-Iglesias E. Resistin: insulin resistance to malignancy. Clin Chim Acta 2014; 438:46-54. [PMID: 25128719 DOI: 10.1016/j.cca.2014.07.043] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 07/24/2014] [Accepted: 07/29/2014] [Indexed: 12/17/2022]
Abstract
Adipose tissue is recognized as an endocrine organ that secretes bioactive substances known as adipokines. Excess adipose tissue and adipose tissue dysfunction lead to dysregulated adipokine production that can contribute to the development of obesity-related co-morbidities. Among the various adipokines, resistin, which was initially considered as a determinant of the emergence of insulin resistance in obesity, has appeared as an important link between obesity and inflammatory processes. Several experimental and clinical studies have suggested an association between increased resistin levels and severe conditions associated with obesity such as cardiovascular disease and malignancies. In this review, we present the growing body of evidence that human resistin is an inflammatory biomarker and potential mediator of obesity-associated diseases. A common pathway seems to involve the combined alteration of immune and inflammatory processes that favor metabolic disturbances, atherosclerosis and carcinogenesis. The mode of action and the signaling pathways utilized by resistin in its interactions with target cells could involve oxidative and nitrosative stress. Therefore, resistin could function as a key molecule in the complications of obesity development and could potentially be used as a diagnostic and prognostic marker.
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Affiliation(s)
- Pilar Codoñer-Franch
- Department of Pediatrics, Dr. Peset University Hospital, Valencia 46017, Spain; Department of Pediatrics, Obstetrics and Gynecology, University of Valencia, Valencia 46010, Spain.
| | - Eulalia Alonso-Iglesias
- Department of Biochemistry and Molecular Biology, University of Valencia, Valencia 46010, Spain
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27
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Lee CH, Lee SD, Ou HC, Lai SC, Cheng YJ. Eicosapentaenoic acid protects against palmitic acid-induced endothelial dysfunction via activation of the AMPK/eNOS pathway. Int J Mol Sci. 2014;15:10334-10349. [PMID: 24918290 DOI: 10.3390/ijms150610334] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 05/12/2014] [Accepted: 05/22/2014] [Indexed: 02/08/2023] Open
Abstract
Recent studies have shown that free fatty acids are associated with chronic inflammation, which may be involved in vascular injury. The intake of eicosapentaenoic acid (EPA) can decrease cardiovascular disease risks, but the protective mechanisms of EPA on endothelial cells remain unclear. In this study, primary human umbilical vein endothelial cells (HUVECs) treated with palmitic acid (PA) were used to explore the protective effects of EPA. The results revealed that EPA attenuated PA-induced cell death and activation of apoptosis-related proteins, such as caspase-3, p53 and Bax. Additionally, EPA reduced the PA-induced increase in the generation of reactive oxygen species, the activation of NADPH oxidase, and the upregulation of inducible nitric oxide synthase (iNOS). EPA also restored the PA-mediated reduction of endothelial nitric oxide synthase (eNOS) and AMP-activated protein kinase (AMPK) phosphorylation. Using AMPK siRNA and the specific inhibitor compound C, we found that EPA restored the PA-mediated inhibitions of eNOS and AKT activities via activation of AMPK. Furthermore, the NF-κB signals that are mediated by p38 mitogen-activated protein kinase (MAPK) were involved in protective effects of EPA. In summary, these results provide new insight into the possible molecular mechanisms by which EPA protects against atherogenesis via the AMPK/eNOS-related pathway.
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28
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Krasner NM, Ido Y, Ruderman NB, Cacicedo JM. Glucagon-like peptide-1 (GLP-1) analog liraglutide inhibits endothelial cell inflammation through a calcium and AMPK dependent mechanism. PLoS One 2014; 9:e97554. [PMID: 24835252 DOI: 10.1371/journal.pone.0097554] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 04/21/2014] [Indexed: 12/18/2022] Open
Abstract
Liraglutide is a glucagon-like peptide-1 (GLP-1) mimetic used for the treatment of Type 2 diabetes. Similar to the actions of endogenous GLP-1, liraglutide potentiates the post-prandial release of insulin, inhibits glucagon release and increases satiety. Recent epidemiological studies and clinical trials have suggested that treatment with GLP-1 mimetics may also diminish the risk of cardiovascular disease in diabetic patients. The mechanism responsible for this effect has yet to be determined; however, one possibility is that they might do so by a direct effect on vascular endothelium. Since low grade inflammation of the endothelium is an early event in the pathogenesis of atherosclerotic cardiovascular disease (ASCVD), we determined the effects of liraglutide on inflammation in cultured human aortic endothelial cells (HAECs). Liraglutide reduced the inflammatory responses to TNFα and LPS stimulation, as evidenced by both reduced protein expression of the adhesion molecules VCAM-1 and E-Selectin, and THP-1 monocyte adhesion. This was found to result from increased cell Ca2+ and several molecules sensitive to Ca2+ with known anti inflammatory actions in endothelial cells, including CaMKKβ, CaMKI, AMPK, eNOS and CREB. Treatment of the cells with STO-609, a CaMKK inhibitor, diminished both the activation of AMPK, CaMKI and the inhibition of TNFα and LPS-induced monocyte adhesion by liraglutide. Likewise, expression of an shRNA against AMPK nullified the anti-inflammatory effects of liraglutide. The results indicate that liraglutide exerts a strong anti-inflammatory effect on HAECs. They also demonstrate that this is due to its ability to increase intracellular Ca2+ and activate CAMKKβ, which in turn activates AMPK.
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29
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Jiang S, Park DW, Tadie JM, Gregoire M, Deshane J, Pittet JF, Abraham E, Zmijewski JW. Human resistin promotes neutrophil proinflammatory activation and neutrophil extracellular trap formation and increases severity of acute lung injury. J Immunol 2014; 192:4795-803. [PMID: 24719460 DOI: 10.4049/jimmunol.1302764] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Although resistin was recently found to modulate insulin resistance in preclinical models of type II diabetes and obesity, recent studies also suggested that resistin has proinflammatory properties. We examined whether the human-specific variant of resistin affects neutrophil activation and the severity of LPS-induced acute lung injury. Because human and mouse resistin have distinct patterns of tissue distribution, experiments were performed using humanized resistin mice that exclusively express human resistin (hRTN(+/-)(/-)) but are deficient in mouse resistin. Enhanced production of TNF-α or MIP-2 was found in LPS-treated hRtn(+/-/-) neutrophils compared with control Rtn(-/-/-) neutrophils. Expression of human resistin inhibited the activation of AMP-activated protein kinase, a major sensor and regulator of cellular bioenergetics that also is implicated in inhibiting inflammatory activity of neutrophils and macrophages. In addition to the ability of resistin to sensitize neutrophils to LPS stimulation, human resistin enhanced neutrophil extracellular trap formation. In LPS-induced acute lung injury, humanized resistin mice demonstrated enhanced production of proinflammatory cytokines, more severe pulmonary edema, increased neutrophil extracellular trap formation, and elevated concentration of the alarmins HMGB1 and histone 3 in the lungs. Our results suggest that human resistin may play an important contributory role in enhancing TLR4-induced inflammatory responses, and it may be a target for future therapies aimed at reducing the severity of acute lung injury and other inflammatory situations in which neutrophils play a major role.
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Affiliation(s)
- Shaoning Jiang
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
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30
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Tsai KL, Huang PH, Kao CL, Leu HB, Cheng YH, Liao YW, Yang YP, Chien Y, Wang CY, Hsiao CY, Chiou SH, Chen JW, Lin SJ. Aspirin attenuates vinorelbine-induced endothelial inflammation via modulating SIRT1/AMPK axis. Biochem Pharmacol 2013; 88:189-200. [PMID: 24345330 DOI: 10.1016/j.bcp.2013.12.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 11/24/2013] [Accepted: 12/03/2013] [Indexed: 12/20/2022]
Abstract
Vinorelbine (VNR), a semisynthetic vinca alkaloid acquired from vinblastine, is frequently used as the candidate for intervention of solid tumors. Nevertheless, VNR-caused endothelial injuries may lead a mitigative effect of clinical treatment efficiency. A growing body of evidence reveals that aspirin is a potent antioxidant and anti-inflammation drug. We investigated whether aspirin attenuate VNR-induced endothelial dysfunction. Human endothelial cells (EA.hy 926) were treated with VNR to cause endothelial inflammation. Western blotting, ROS assay, ELISA were used to confirm the anti-inflammatory effect of aspirin. We confirmed that VNR suppresses SIRT1 expression, reduced LKB1 and AMPK phosphorylation as well as enriched PKC activation in treated endothelial cells. Furthermore, the membrane translocation assay displayed that the levels of NADPH oxidase subunits p47phox and Rac-1 in membrane fractions of endothelial cells were higher in cells that had been treated with VNR for than in untreated cells. We corroborated that treatment of Aspirin significantly diminishes VNR-repressed SIRT1, LKB1 and AMPK phosphorylation and VNR-promoted NADPH oxidase activation, however, those findings were vanished by SIRT1 and AMPK siRNAs. Our data also shown that Aspirin represses VNR-activated TGF-beta-activated kinase-1 (TAK1) activation, inhibited the interaction of TAK1/TAK-binding protein1 (TAB1), suppressed NF-kappa B activation and pro-inflammatory cytokine secretion. We demonstrated a novel connection between VNR-caused oxidative damages and endothelial dysfunction, and provide further insight into the protective effects of aspirin in VNR-caused endothelial dysfunction.
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Affiliation(s)
- Kun-Ling Tsai
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Po-Hsun Huang
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chung-Lan Kao
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Physical Medicine and Rehabilitation, Taipei, Taiwan
| | - Hsin-Bang Leu
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yung-Hsin Cheng
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - Yi-Wen Liao
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Ping Yang
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yueh Chien
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chien-Ying Wang
- Department of Emergency Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chen-Yuan Hsiao
- Department of Surgery, National Yang-Ming University Hospital, Taipei, Taiwan
| | - Shih-Hwa Chiou
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan.
| | - Jaw-Wen Chen
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan; Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shing-Jong Lin
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan.
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31
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Hamar J, Solymár M, Tanai E, Cseplo P, Springo Z, Berta G, Debreceni B, Koller A. Bioassay-comparison of the antioxidant efficacy of hydrogen sulfide and superoxide dismutase in isolated arteries and veins. ACTA ACUST UNITED AC 2013; 99:411-9. [PMID: 23238543 DOI: 10.1556/aphysiol.99.2012.4.5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent studies suggest that hydrogen sulfide (H2S) exhibits potent antioxidant capacity and improves vascular and tissue functions. Thus we aimed to compare the antioxidant efficacy of H2S to that of superoxide dismutase (SOD).Isometric force of isolated rat carotid arteries and gracilis veins was measured with a myograph. The vasomotor effect of the superoxide-generator pyrogallol (10-5M) was obtained in control conditions, and then in the presence of SOD (120 U/ml) or H2S (10-5M or 10-4M), respectively. Spectrophotometric measurements were performed to detect the effect of SOD and H2S on the auto-oxidation of pyrogallol.Pyrogallol increased the isometric force of carotid arteries (9.7 ± 0.8 mN), which was abolished by SOD (5.3 ± 0.8 mN), was not affected by 10-5M H2S (9.1 ± 0.5 mN), whereas 10-4M H2S slightly, but significantly reduced it (8.1 ± 0.7 mN). Pyrogallol significantly increased the isometric force of gracilis veins (1.3 ± 0.2 mN), which was abolished by SOD (0.9 ± 0.2 mN), whereas 10-5M (1.3 ± 0.2 mN), or 10-4M H2S (1.2 ± 0.2 mN) did not affect it. Pyrogallol-induced superoxide production was measured by a spectrophotometer (A420 = 0.19 ± 0.0). SOD reduced absorbance (A420 = 0.02 ± 0.0), whereas 10-5M H2S did not (A420 = 0.18 ± 0.0) and 10-4M H2S slightly reduced it (A420 = 0.15 ± 0.0).These data suggest that H2S is a less effective vascular antioxidant than SOD. We propose that the previously described beneficial effects of H2S are unlikely to be related to its direct effect on superoxide.
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Affiliation(s)
- J Hamar
- Department of Pathophysiology and Gerontology, University of Pécs, Pécs Hungary
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