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Jhuo JY, Tong ZJ, Ku PH, Cheng HW, Wang HT. Acrolein induces mitochondrial dysfunction and insulin resistance in muscle and adipose tissues in vitro and in vivo. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122380. [PMID: 37625774 DOI: 10.1016/j.envpol.2023.122380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/05/2023] [Accepted: 08/12/2023] [Indexed: 08/27/2023]
Abstract
Type 2 diabetes mellitus (DM) is a common chronic condition characterized by persistent hyperglycemia and is associated with insulin resistance (IR) in critical glucose-consuming tissues, including skeletal muscle and adipose tissue. Oxidative stress and mitochondrial dysfunction are known to play key roles in IR. Acrolein is a reactive aldehyde found in the diet and environment that is generated as a fatty acid product through the glucose autooxidation process under hyperglycemic conditions. Our previous studies have shown that acrolein impairs insulin sensitivity in normal and diabetic mice, and this effect can be reversed by scavenging acrolein. This study demonstrated that acrolein increased oxidative stress and inhibited mitochondrial respiration in differentiated C2C12 myotubes and differentiated 3T3-L1 adipocytes. As a result, insulin signaling pathways were inhibited, leading to reduced glucose uptake. Treatment with acrolein scavengers, N-acetylcysteine, or carnosine ameliorated mitochondrial dysfunction and inhibited insulin signaling. Additionally, an increase in acrolein expression correlated with mitochondrial dysfunction in the muscle and adipose tissues of diabetic mice. These findings suggest that acrolein-induced mitochondrial dysfunction contributes to IR, and scavenging acrolein is a potential therapeutic approach for treating IR.
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Affiliation(s)
- Jia-Yu Jhuo
- Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Zhen-Jie Tong
- Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Pei-Hsuan Ku
- Department of Life Sciences and the Institute of Genome Science, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Hsiao-Wei Cheng
- Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Hsiang-Tsui Wang
- Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC; Institute of Food Safety and Health Risk Assessment, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC; Doctor Degree Program in Toxicology, Kaohsiung Medical University, Kaohsiung, Taiwan.
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2
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Hikisz P, Jacenik D. Diet as a Source of Acrolein: Molecular Basis of Aldehyde Biological Activity in Diabetes and Digestive System Diseases. Int J Mol Sci 2023; 24:6579. [PMID: 37047550 PMCID: PMC10095194 DOI: 10.3390/ijms24076579] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 03/25/2023] [Accepted: 03/31/2023] [Indexed: 04/05/2023] Open
Abstract
Acrolein, a highly reactive α,β-unsaturated aldehyde, is a compound involved in the pathogenesis of many diseases, including neurodegenerative diseases, cardiovascular and respiratory diseases, diabetes mellitus, and the development of cancers of various origins. In addition to environmental pollution (e.g., from car exhaust fumes) and tobacco smoke, a serious source of acrolein is our daily diet and improper thermal processing of animal and vegetable fats, carbohydrates, and amino acids. Dietary intake is one of the main routes of human exposure to acrolein, which is a major public health concern. This review focuses on the molecular mechanisms of acrolein activity in the context of its involvement in the pathogenesis of diseases related to the digestive system, including diabetes, alcoholic liver disease, and intestinal cancer.
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Affiliation(s)
- Pawel Hikisz
- Department of Oncobiology and Epigenetics, Faculty of Biology and Environmental Protection, University of Lodz, ul. Pomorska 141/143, 90-236 Lodz, Poland
| | - Damian Jacenik
- Department of Cytobiochemistry, Faculty of Biology and Environmental Protection, University of Lodz, ul. Pomorska 141/143, 90-236 Lodz, Poland
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Quan X, Yu C, Fan Z, Wu T, Qi C, Zhang H, Wu S, Wang X. Hydralazine plays an immunomodulation role of pro-regeneration in a mouse model of spinal cord injury. Exp Neurol 2023; 363:114367. [PMID: 36858281 DOI: 10.1016/j.expneurol.2023.114367] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 02/09/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023]
Abstract
Spinal cord injury (SCI) results in severe motor and sensory dysfunction with no effective therapy. Spinal cord debris (sp) from injured spinal cord evokes secondary SCI continuously. We and other researchers have previously clarified that it is mainly bone marrow derived macrophages (BMDMs) infiltrating in the lesion epicenter to clear sp, rather than local microglia. Unfortunately, the pro-inflammatory phenotype of these infiltrating BMDMs is predominant which impairs wound healing. Hydralazine, as a potent vasodilator and scavenger of acrolein, has protective effects in many diseases. Hydralazine is also confirmed to promote motor function and hypersensitivity in SCI rats through scavenging acrolein. However, few studies have explored the effects of hydralazine on immunomodulation, as well as spontaneous pain and emotional response, the important syndromes in clinical patients. It remains unclear whether hydralazine affects infiltrating BMDMs after SCI. In this study, we targeted BMDMs to explore the influence of hydralazine on immune cells in a mouse model of SCI, and also investigated the contribution of polarized BMDMs to hydralazine-induced neurological function recovery after SCI in male mice. The adult male mice underwent T10 spinal cord compression. The results showed that in addition to improving motor function and hypersensitivity, hydralazine relieved SCI-induced spontaneous pain and emotional response, which is a newly discovered function of hydralazine. Hydralazine inhibited the recruitments of pro-inflammatory BMDMs and educated infiltrated BMDMs to a more reparative phenotype involving in multiple biological processes associated with SCI pathology, including immune/inflammation response, neurogenesis, lipid metabolism, oxidative stress, fibrosis formation, and angiogenesis, etc. As an overall effect, hydralazine-treated BMDMs loaden with sp partially rescued neurological function after SCI. It is concluded that hydralazine plays an immunomodulation role of educating pro-inflammatory BMDMs to a more reparative phenotype; and hydralazine-educated BMDMs contribute to hydralazine-induced improvement of neurological function in SCI mice, which provides support for drug and cell treatment options for SCI therapy.
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Affiliation(s)
- Xin Quan
- Institute of Neurosciences and Department of Neurobiology, Fourth Military Medical University, Xi'an 710032, China
| | - Caiyong Yu
- Institute of Neurosciences and Department of Neurobiology, Fourth Military Medical University, Xi'an 710032, China; Military Medical Innovation Center, Fourth Military Medical University, Xi'an 710032, China
| | - Zhongmin Fan
- Department of Critical Care Medicine and Department of Anesthesiology and Perioprative Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Tong Wu
- Institute of Neurosciences and Department of Neurobiology, Fourth Military Medical University, Xi'an 710032, China
| | - Chuchu Qi
- Institute of Neurosciences and Department of Neurobiology, Fourth Military Medical University, Xi'an 710032, China
| | - Haoying Zhang
- Institute of Neurosciences and Department of Neurobiology, Fourth Military Medical University, Xi'an 710032, China
| | - Shengxi Wu
- Institute of Neurosciences and Department of Neurobiology, Fourth Military Medical University, Xi'an 710032, China.
| | - Xi Wang
- Institute of Neurosciences and Department of Neurobiology, Fourth Military Medical University, Xi'an 710032, China; The College of Life Sciences and Medicine, Northwest University, Xi'an 710069, China.
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Chen HJC. Mass Spectrometry Analysis of DNA and Protein Adducts as Biomarkers in Human Exposure to Cigarette Smoking: Acrolein as an Example. Chem Res Toxicol 2023; 36:132-140. [PMID: 36626705 DOI: 10.1021/acs.chemrestox.2c00354] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Acrolein is a major component in cigarette smoke and a product of endogenous lipid peroxidation. It is difficult to distinguish human exposure to acrolein from exogenous sources versus endogenous causes, as components in cigarette smoke can stimulate lipid peroxidation in vivo. Therefore, analysis of acrolein-induced DNA and protein adducts by the highly accurate, sensitive, and specific mass spectrometry-based methods is vital to estimate the degree of damage by this IARC Group 2A carcinogen. This Perspective reviews the analyses of acrolein-induced DNA and protein adducts in humans by mass spectrometry focusing on samples accessible for biomonitoring, including DNA from leukocytes and oral cells and abundant proteins from blood, i.e., hemoglobin and serum albumin.
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Affiliation(s)
- Hauh-Jyun Candy Chen
- Department of Chemistry and Biochemistry and Center for Nano Bio-Detection (AIM-HI), National Chung Cheng University, 168 University Road, Ming-Hsiung, Chia-Yi 62142, Taiwan
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Tong ZJ, Kuo CW, Yen PC, Lin CC, Tsai MT, Lu SH, Chang YP, Liu WS, Tsou HH, Cheng HW, Wang HT. Acrolein plays a culprit role in the pathogenesis of diabetic nephropathy in vitro and in vivo. Eur J Endocrinol 2022; 187:579-592. [PMID: 36001357 DOI: 10.1530/eje-22-0493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/24/2022] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Diabetic nephropathy (DN), also known as diabetic kidney disease (DKD), is a major chronic complication of diabetes and is the most frequent cause of kidney failure globally. A better understanding of the pathophysiology of DN would lead to the development of novel therapeutic options. Acrolein, an α,β-unsaturated aldehyde, is a common dietary and environmental pollutant. DESIGN The role of acrolein and the potential protective action of acrolein scavengers in DN were investigated using high-fat diet/ streptozotocin-induced DN mice and in vitro DN cellular models. METHODS Acrolein-protein conjugates (Acr-PCs) in kidney tissues were examined using immunohistochemistry. Renin-angiotensin system (RAS) and downstream signaling pathways were analyzed using quantitative RT-PCR and Western blot analyses. Acr-PCs in DN patients were analyzed using an established Acr-PC ELISA system. RESULTS We found an increase in Acr-PCs in kidney cells using in vivo and in vitro DN models. Hyperglycemia activated the RAS and downstream MAPK pathways, increasing inflammatory cytokines and cellular apoptosis in two human kidney cell lines (HK2 and HEK293). A similar effect was induced by acrolein. Furthermore, acrolein scavengers such as N-acetylcysteine, hydralazine, and carnosine could ameliorate diabetes-induced kidney injury. Clinically, we also found increased Acr-PCs in serum samples or kidney tissues of DKD patients compared to normal volunteers, and the Acr-PCs were negatively correlated with kidney function. CONCLUSIONS These results together suggest that acrolein plays a role in the pathogenesis of DN and could be a diagnostic marker and effective therapeutic target to ameliorate the development of DN.
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Affiliation(s)
- Zhen-Jie Tong
- Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chin-Wei Kuo
- Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Po-Cheng Yen
- Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chih-Ching Lin
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ming-Tsun Tsai
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shing-Hwa Lu
- Department of Urology, Taipei Veterans General Hospital, Taoyuan Branch, Taoyuan, Taiwan
- Department of Urology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yi-Ping Chang
- Division of Nephrology, Taoyuan Branch of Taipei Veterans General Hospital, Taoyuan, Taiwan
- Department of Healthcare Information and Management, Ming Chuan University, Taoyuan, Taiwan
- Department of Business Administration, Ming Chuan University, Taipei, Taiwan
| | - Wen-Sheng Liu
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Nephrology, Department of Medicine, Taipei City Hospital, Zhongxing Branch, Taipei, Taiwan
- Institute of Food Safety and Health Risk Assessment, National Yang Ming Chiao Tung University, Taipei, Taiwan
- College of Science and Engineering, Fu Jen Catholic University, New Taipei City, Taiwan
- Department of Special Education, University of Taipei, Taipei, Taiwan
| | - Han-Hsing Tsou
- Institute of Food Safety and Health Risk Assessment, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Kim Forest Enterprise Co., Ltd., Taipei, Taiwan
| | - Hsiao-Wei Cheng
- Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hsiang-Tsui Wang
- Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Food Safety and Health Risk Assessment, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Toxicology, Kaohsiung Medical University, Kaohsiung, Taiwan
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Chang TT, Chiang CH, Chen C, Lin SC, Lee HJ, Chen JW. Antioxidation and Nrf2-mediated heme oxygenase-1 activation contribute to renal protective effects of hydralazine in diabetic nephropathy. Biomed Pharmacother 2022; 151:113139. [PMID: 35623171 DOI: 10.1016/j.biopha.2022.113139] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/08/2022] [Accepted: 05/15/2022] [Indexed: 12/15/2022] Open
Abstract
Reactive oxygen species (ROS) and oxidative stress are associated with the progression of diabetic nephropathy (DN). Hydralazine is an antihypertensive agent and may act as a xanthine oxidase (XO) inhibitor to reduce uric acid levels in a mouse renal injury model. This study aimed to investigate the potential mechanisms of hydralazine in experimental DN. Streptozotocin-induced diabetic mice were fed a high-fat diet to generate DN. Human renal proximal tubular epithelial cells were used in vitro. Nitrendipine and allopurinol which can reduce blood pressure or XO activity levels, were used as two positive controls. Hydralazine downregulated NF-κB/p38 signaling pathways and reduced TNF-α/IL-6 expressions in high glucose-stimulated renal proximal tubular epithelial cells. Hydralazine reduced in vitro ROS production via XO inhibition and nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated heme oxygenase (HO)-1 activation. Furthermore, hydralazine reduced high glucose-induced apoptosis by downregulating PARP/caspase-3 signaling. Hydralazine and allopurinol but not nitrendipine reduced serum uric acid levels and systemic inflammation. Hydralazine and allopurinol treatment improved renal function with decreased urinary albumin-to-creatinine ratios, glomerular hypertrophy, glomerulosclerosis, and fibrosis in the kidney of DN mice. While both hydralazine and allopurinol downregulated XO and NADPH oxidase expression, only hydralazine upregulated Nrf2/HO-1 renal expression, suggesting the additional effects of hydralazine independent of XO/ NADPH oxidase inhibition. In conclusion, hydralazine protected renal proximal tubular epithelial cells against the insults of high glucose and prevented renal damage via XO/NADPH oxidase inhibition and Nrf-2/HO-1 activation, suggesting the comprehensive antioxidation and anti-inflammation mechanisms for the management of DN.
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Affiliation(s)
- Ting-Ting Chang
- Department and Institute of Pharmacology, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Chih-Hung Chiang
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan; Department of Urology/Medical Research and Education, Taipei Veterans General Hospital, Yuan-Shan/Su-Ao Branch, Yi-Lan, Taiwan
| | - Ching Chen
- Department and Institute of Pharmacology, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Su-Chu Lin
- Department of Urology/Medical Research and Education, Taipei Veterans General Hospital, Yuan-Shan/Su-Ao Branch, Yi-Lan, Taiwan
| | - Hsin-Jou Lee
- Department and Institute of Pharmacology, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Jaw-Wen Chen
- Department and Institute of Pharmacology, National Yang Ming Chiao Tung University, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Healthcare and Services Center, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Cardiovascular Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Erhan E, Salcan I, Bayram R, Suleyman B, Dilber M, Yazici GN, Coban TA, Altuner D, Suleyman H. Protective effect of lutein against acrolein-induced ototoxicity in rats. Biomed Pharmacother 2021; 137:111281. [PMID: 33578233 DOI: 10.1016/j.biopha.2021.111281] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/25/2020] [Accepted: 01/12/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Acrolein is a reactive aldehyde that forms during burning of wood and other fuels. It is also a product of lipid peroxidation (LPO) reactions and is present in cigarette smoke. Acrolein is known to cause oxidative stress and inflammatory nerve tissue damage. Lutein is a tetraterpenoid molecule with antioxidant and anti-inflammatory properties. There appear to be no studies on the effect of lutein on vestibulocochlear nerve damage induced by acrolein. The aim of this study was to investigate the effect of lutein on vestibulocochlear nerve damage induced by acrolein in rats using biochemical and histopathological methods. METHODS The rats were divided into three groups (n = 6, for each group) a healthy control group (HG), an acrolein (ACR) group and a lutein and acrolein (LACR) group. In the LACR group, lutein was administered (1 mg/kg) via oral gavage. The ACR and HG groups received saline via oral gavage. Then, 1 h after the administration of lutein and saline, the LACR and ACR groups were treated with 3 mg/kg of acrolein via oral gavage. This procedure was repeated once a day for 30 days. RESULTS The results of biochemical experiments showed that in the vestibulocochlear nerve tissues of the animals treated with acrolein, the levels of malondialdehyde, total oxidants, nuclear factor kappa b, tumor necrosis factor alpha and interleukin 1 beta significantly increased, whereas the levels of total glutathione and total antioxidants decreased as compared to those in the HG and LACR groups. In addition, severe histopathological damage was observed in vestibulocochlear nerve tissue of the acrolein group, whereas this damage was alleviated in the lutein group. CONCLUSION Lutein protected vestibulocochlear nerve tissue from acrolein-associated oxidative and proinflammatory damage. This suggests that lutein might be useful in preventing or treating acrolein-induced ototoxicity.
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Affiliation(s)
- Ertugrul Erhan
- Department of Otorhinolaryngology, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Ismail Salcan
- Department of Otorhinolaryngology, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Rana Bayram
- Department of Otorhinolaryngology, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Bahadir Suleyman
- Department of Pharmacology, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | | | - Gulce Naz Yazici
- Department of Histology, Faculty of Medicine, Erzincan Binali Yildirim University, Erzincan, Turkey
| | - Taha Abdulkadir Coban
- Department of Medical Biochemistry, Faculty of Medicine, Erzincan Binali Yildirim University, Erzincan, Turkey
| | - Durdu Altuner
- Department of Pharmacology, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Halis Suleyman
- Department of Pharmacology, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan, Turkey.
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Acrolein: A Potential Mediator of Oxidative Damage in Diabetic Retinopathy. Biomolecules 2020; 10:biom10111579. [PMID: 33233661 PMCID: PMC7699716 DOI: 10.3390/biom10111579] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/05/2020] [Accepted: 11/17/2020] [Indexed: 02/06/2023] Open
Abstract
Diabetic retinopathy (DR) is the leading cause of vision loss among working-age adults. Extensive evidences have documented that oxidative stress mediates a critical role in the pathogenesis of DR. Acrolein, a product of polyamines oxidation and lipid peroxidation, has been demonstrated to be involved in the pathogenesis of various human diseases. Acrolein’s harmful effects are mediated through multiple mechanisms, including DNA damage, inflammation, ROS formation, protein adduction, membrane disruption, endoplasmic reticulum stress, and mitochondrial dysfunction. Recent investigations have reported the involvement of acrolein in the pathogenesis of DR. These studies have shown a detrimental effect of acrolein on the retinal neurovascular unit under diabetic conditions. The current review summarizes the existing literature on the sources of acrolein, the impact of acrolein in the generation of oxidative damage in the diabetic retina, and the mechanisms of acrolein action in the pathogenesis of DR. The possible therapeutic interventions such as the use of polyamine oxidase inhibitors, agents with antioxidant properties, and acrolein scavengers to reduce acrolein toxicity are also discussed.
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Ni CM, Ling BY, Xu X, Sun HP, Jin H, Zhang YQ, Cao H, Xu L. CX3CR1 contributes to streptozotocin-induced mechanical allodynia in the mouse spinal cord. J Zhejiang Univ Sci B 2020; 21:166-171. [PMID: 32115913 DOI: 10.1631/jzus.b1900439] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Patients with diabetic peripheral neuropathy experience debilitating pain that significantly affects their quality of life (Abbott et al., 2011), by causing sleeping disorders, anxiety, and depression (Dermanovic Dobrota et al., 2014). The primary clinical manifestation of painful diabetic neuropathy (PDN) is mechanical hypersensitivity, also known as mechanical allodynia (MA) (Callaghan et al., 2012). MA's underlying mechanism remains poorly understood, and so far, based on symptomatic treatment, it has no effective therapy (Moore et al., 2014).
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Affiliation(s)
- Cheng-Ming Ni
- Department of Endocrinology, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - Bing-Yu Ling
- Department of Emergency, Northern Jiangsu People's Hospital, Yangzhou University, Yangzhou 225001, China
| | - Xiang Xu
- Department of Endocrinology, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - He-Ping Sun
- Department of Endocrinology, the Affiliated Kunshan First People's Hospital of Jiangsu University, Kunshan 215300, China
| | - Hui Jin
- Department of Endocrinology, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - Yu-Qiu Zhang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and Collaborative Innovation Center for Brain Science, Fudan University, Shanghai 200032, China
| | - Hong Cao
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and Collaborative Innovation Center for Brain Science, Fudan University, Shanghai 200032, China
| | - Lan Xu
- Department of Endocrinology, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
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Augustine J, Troendle EP, Barabas P, McAleese CA, Friedel T, Stitt AW, Curtis TM. The Role of Lipoxidation in the Pathogenesis of Diabetic Retinopathy. Front Endocrinol (Lausanne) 2020; 11:621938. [PMID: 33679605 PMCID: PMC7935543 DOI: 10.3389/fendo.2020.621938] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 12/21/2020] [Indexed: 12/31/2022] Open
Abstract
Lipids can undergo modification as a result of interaction with reactive oxygen species (ROS). For example, lipid peroxidation results in the production of a wide variety of highly reactive aldehyde species which can drive a range of disease-relevant responses in cells and tissues. Such lipid aldehydes react with nucleophilic groups on macromolecules including phospholipids, nucleic acids, and proteins which, in turn, leads to the formation of reversible or irreversible adducts known as advanced lipoxidation end products (ALEs). In the setting of diabetes, lipid peroxidation and ALE formation has been implicated in the pathogenesis of macro- and microvascular complications. As the most common diabetic complication, retinopathy is one of the leading causes of vision loss and blindness worldwide. Herein, we discuss diabetic retinopathy (DR) as a disease entity and review the current knowledge and experimental data supporting a role for lipid peroxidation and ALE formation in the onset and development of this condition. Potential therapeutic approaches to prevent lipid peroxidation and lipoxidation reactions in the diabetic retina are also considered, including the use of antioxidants, lipid aldehyde scavenging agents and pharmacological and gene therapy approaches for boosting endogenous aldehyde detoxification systems. It is concluded that further research in this area could lead to new strategies to halt the progression of DR before irreversible retinal damage and sight-threatening complications occur.
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Affiliation(s)
- Josy Augustine
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Science, Queen’s University of Belfast, Belfast, United Kingdom
| | - Evan P. Troendle
- Department of Chemistry, King’s College London, London, United Kingdom
| | - Peter Barabas
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Science, Queen’s University of Belfast, Belfast, United Kingdom
| | - Corey A. McAleese
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Science, Queen’s University of Belfast, Belfast, United Kingdom
| | - Thomas Friedel
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Science, Queen’s University of Belfast, Belfast, United Kingdom
| | - Alan W. Stitt
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Science, Queen’s University of Belfast, Belfast, United Kingdom
| | - Tim M. Curtis
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Science, Queen’s University of Belfast, Belfast, United Kingdom
- *Correspondence: Tim M. Curtis,
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Xu Y, Wang X, Zhang Y. Myocardial Infarction-Related Transcripts (MIAT) Participate in Diabetic Optic Nerve Injury by Regulating Heart Shock Protein 5 (HSPA5) via Competitively Binding to MicroRNA-379. Med Sci Monit 2019; 25:2096-2103. [PMID: 30895947 PMCID: PMC6439961 DOI: 10.12659/msm.911930] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Background The aim of this study was to explore the role of MIAT (myocardial infarction related transcripts) in diabetic optic neuropathy and its underlying mechanism. Material/Methods QRT-PCR (quantitative real-time polymerase chain reaction) was performed to detect the mRNA levels of MIAT and HSPA5 (heart shock protein 5) in diabetic rat model and high-glucose cultured Müller cells. After the intracellular MIAT level was increased by lentivirus transfection, the proliferation, cell cycle, and apoptosis of Müller cells were measured using the CCK-8 (Cell Counting Kit-8) assay, flow cytometry, and TUNEL (terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick-end labeling) assay, respectively. Mechanisms underlying the MIAT-related apoptosis were explored by Western blot analysis. The binding condition of microRNA-379 to MIAT and HSPA5 was confirmed by luciferase reporter gene assay. Results Both MIAT and HSPA5 levels were remarkably increased in high-glucose cultured Müller cells. After transfected with LV (lentivirus)-MIAT, Müller cells showed a decreased proliferation and an enhanced apoptosis with the increased expressions of pro-apoptotic proteins. However, no remarkable changes were observed in cell cycle. Further mechanistic studies found that MIAT regulated HSPA5 expression by directly binding to microRNA-379. Conclusions MIAT was overexpressed in the diabetic optic nerve. MIAT overexpression remarkably promoted the apoptosis of Müller cells by adsorbing microRNA-379 and thus regulating HSPA5, which was a direct target of microRNA-379.
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Affiliation(s)
- Yonggen Xu
- Department of Ophthalmology, Shaoxing People's Hospital, Shaoxing, Zhejiang, China (mainland)
| | - Xiaolan Wang
- Department of General Medical, The Second Hospital of Shaoxing, Shaoxing, Zhejiang, China (mainland)
| | - Yulv Zhang
- Department of Endocrinology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang, China (mainland)
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Yu T, Li L, Liu H, Li H, Liu Z, Li Z. KCNQ2/3/5 channels in dorsal root ganglion neurons can be therapeutic targets of neuropathic pain in diabetic rats. Mol Pain 2018; 14:1744806918793229. [PMID: 30027794 PMCID: PMC6088482 DOI: 10.1177/1744806918793229] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background Diabetic neuropathic pain is poorly controlled by analgesics, and the precise molecular mechanisms underlying hyperalgesia remain unclear. The KCNQ2/3/5 channels expressed in dorsal root ganglion neurons are important in pain transmission. The expression and activity of KCNQ2/3/5 channels in dorsal root ganglion neurons in rats with diabetic neuropathic pain were investigated in this study. Methods The mRNA levels of KCNQ2/3/5 channels were analyzed by real-time polymerase chain reaction. The protein levels of KCNQ2/3/5 channels were evaluated by Western blot assay. KCNQ2/3/5 channel expression in situ in dorsal root ganglion neurons was detected by double fluorescent labeling technique. M current (IM) density and neuronal excitability were determined by whole-cell voltage and current clamp recordings. Mechanical allodynia and thermal hyperalgesia were assessed by von Frey filaments and plantar analgesia tester, respectively. Results The mRNA and protein levels of KCNQ2/3/5 channels significantly decreased, followed by the reduction of IM density and elevation of neuronal excitability of dorsal root ganglion neurons from diabetic rats. Activation of KCNQ channels with retigabine reduced the hyperexcitability and inhibition of KCNQ channels with XE991 enhanced the hyperexcitability. Administration of retigabine alleviated both mechanical allodynia and thermal hyperalgesia, while XE991 augmented both mechanical allodynia and thermal hyperalgesia in diabetic neuropathic pain in rats. Conclusion The findings elucidate the mechanisms by which downregulation of the expression and reduction of the activity of KCNQ2/3/5 channels in diabetic rat dorsal root ganglion neurons contribute to neuronal hyperexcitability, which results in hyperalgesia. These data provide intriguing evidence that activation of KCNQ2/3/5 channels might be the potential new targets for alleviating diabetic neuropathic pain symptoms.
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Affiliation(s)
- Ting Yu
- 1 Department of Anatomy, School of Basic Medical Sciences, Shandong University, Jinan, China.,2 Department of Physiology, Jining Medical University, Jining, China
| | - Lei Li
- 3 Department of Diagnosis, Jining Medical University, Jining, China
| | - Huaxiang Liu
- 4 Department of Rheumatology, Shandong University Qilu Hospital, Jinan, China
| | - Hao Li
- 5 Department of Orthopaedics, Shandong University Qilu Hospital, Jinan, China
| | - Zhen Liu
- 1 Department of Anatomy, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Zhenzhong Li
- 1 Department of Anatomy, School of Basic Medical Sciences, Shandong University, Jinan, China
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