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Lu J, Yang Y, Varga E, Marko D, Yu Q, Xie J, Li C, Chen Y. Molecular Mechanisms Associated with Protecting IEC-6 Cells from Acrylamide-Induced Tight Junction Damage by Ganoderma atrum Polysaccharide. Mol Nutr Food Res 2023; 67:e2200774. [PMID: 36565056 DOI: 10.1002/mnfr.202200774] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/08/2022] [Indexed: 12/25/2022]
Abstract
SCOPE The previous in vivo studies show Ganoderma atrum polysaccharide (PSG-F2 ) has a protective effect against the acrylamide (AA)-induced intestinal oxidative damage in rats. Now, this study aims to explore the protective mechanism with IEC-6 cell model. METHODS AND RESULTS Based on RNA Sequencing (RNA-Seq), the study screens MAPK signaling pathway as one of the most crucial pathways for pretreatment with PSG-F2 against AA-induced damage in IEC-6 cells. In total, six key MAPK signaling pathway-related proteins (p-P38/P38, p-ERK/ERK, and p-JNK/JNK), and three tight junction key proteins (Zonula Occludens protein-1, Claudin-1, and Occludin) are detected by Western blot and immunofluorescence, which verify the RNA-Seq data. Moreover, PD98059 interference inhibits critical proteins in the MAPK signaling pathway, thus uncovering the precise molecular mechanisms of MAPK/ERK signaling pathway involve in the protective effects of PSG-F2 against AA-induced intestinal barrier damage. CONCLUSION These findings confirm that PSG-F2 can be used as a daily dietary supplement to protect the intestinal cells from damage caused by thermal processing hazards AA.
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Affiliation(s)
- Jiawen Lu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, P. R. China
| | - Ying Yang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, P. R. China
| | - Elisabeth Varga
- Department of Food Chemistry and Toxicology, University of Vienna, Währinger Straße 38, Vienna, 1090, Austria
| | - Doris Marko
- Department of Food Chemistry and Toxicology, University of Vienna, Währinger Straße 38, Vienna, 1090, Austria
| | - Qiang Yu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, P. R. China
| | - Jianhua Xie
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, P. R. China
| | - Chang Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, P. R. China
| | - Yi Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, P. R. China
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Li F, Li J, Li S, Guo S, Li P. Modulatory Effects of Chinese Herbal Medicines on Energy Metabolism in Ischemic Heart Diseases. Front Pharmacol 2020; 11:995. [PMID: 32719602 PMCID: PMC7348053 DOI: 10.3389/fphar.2020.00995] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 06/19/2020] [Indexed: 12/20/2022] Open
Abstract
Ischemic heart disease (IHD), a major global public health problem, is associated with high morbidity and mortality. Although the very best of modern approaches have proven effective in reducing morbidity and mortality, the poor prognosis of patients with IHD remains a major clinical concern. Cardiac energy metabolism is increasingly recognized as having a role in the pathogenesis of IHD, inducing metabolic substrate alterations, mitochondrial dysfunction, impaired function of the mitochondrial electron transport chain, and deprivation of cardiac energy. Factors involved in cardiac energy metabolism provide potential therapeutic targets for the treatment of IHD. Chinese herbal medicines (CHMs) have a long history of use in the prevention and treatment of cardiovascular diseases with multi-component, multi-target, and multi-signaling. Increasing evidence suggests that Chinese herbal medicines may improve myocardial ischemia through modulating cardiac energy metabolism. Here, we describe the possible targets and pathways of cardiac energy metabolism for CHMs, and appraise the modulatory effects of CHMs on energy metabolism in IHD. Especially, this review focuses on summarizing the metabolic effects and the underlying mechanisms of Chinese herbal medicines (including herbs, major bioactive components, and formulas) in IHD. In addition, we also discuss the current limitations and the major challenges for research investigating the use of CHMs in the treatment of cardiovascular diseases.
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Affiliation(s)
- Fanghe Li
- The 3rd Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Jinmao Li
- The 3rd Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Saisai Li
- The 3rd Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Shuwen Guo
- Fangshan Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Ping Li
- The 3rd Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
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Vanillic Acid Alleviates Acute Myocardial Hypoxia/Reoxygenation Injury by Inhibiting Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8348035. [PMID: 32377308 PMCID: PMC7191373 DOI: 10.1155/2020/8348035] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 03/23/2020] [Indexed: 02/07/2023]
Abstract
Oxidative stress is an important factor of myocardial hypoxia/reoxygenation (H/R) injury. Our research focuses on how to reduce the cardiac toxicity caused by oxidative stress through natural plant extracts. Vanillic acid (VA) is a phenolic compound found in edible plants and rich in the roots of Angelica sinensis. Experimental studies have provided evidence for this compound's effectiveness in cardiovascular diseases; however, its mechanism is still unclear. In this study, molecular mechanisms related to the protective effects of VA were investigated in H9c2 cells in the context of H/R injury. The results showed that pretreatment with VA significantly increased cell viability and decreased the percentage of apoptotic cells, as well as lactate dehydrogenase and creatine phosphokinase activity, in the supernatant, accompanied by reduced levels of reactive oxygen species and reduced caspase-3 activity. VA pretreatment also restored mitochondrial membrane potentials. Moreover, preincubation with VA significantly attenuated mitochondrial permeability transition pore activity. VA administration upregulated adenosine monophosphate-activated protein kinase α2 (AMPKα2) protein expression, and interestingly, pretreatment with AMPKα2-siRNA lentivirus effectively attenuated the cardioprotective effects of VA in response to H/R injury.
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Xiang QD, Yu Q, Wang H, Zhao MM, Liu SY, Nie SP, Xie MY. Immunomodulatory Activity of Ganoderma atrum Polysaccharide on Purified T Lymphocytes through Ca 2+/CaN and Mitogen-Activated Protein Kinase Pathway Based on RNA Sequencing. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:5306-5315. [PMID: 28608696 DOI: 10.1021/acs.jafc.7b01763] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Our previous study has demonstrated that Ganoderma atrum polysaccharide (PSG-1) has immunomodulatory activity on spleen lymphocytes. However, how PSG-1 exerts its effect on purified lymphocytes is still obscure. Thus, this study aimed to investigate the immunomodulatory activity of PSG-1 on purified T lymphocytes and further elucidate the underlying mechanism based on RNA sequencing (RNA-seq). Our results showed that PSG-1 promoted T lymphocytes proliferation and increased the production of IL-2, IFN-γ, and IL-12. Meanwhile, RNA-seq analysis found 394 differentially expressed genes. KEGG pathway analysis identified 20 significant canonical pathways and seven biological functions. Furthermore, PSG-1 elevated intracellular Ca2+ concentration and calcineurin (CaN) activity and raised the p-ERK, p-JNK, and p-p38 expression levels. T lymphocytes proliferation and the production of IL-2, IFN-γ, and IL-12 were decreased by the inhibitors of calcium channel and mitogen-activated protein kinases (MAPKs). These results indicated that PSG-1 possesses immunomodulatory activity on purified T lymphocytes, in which Ca2+/CaN and MAPK pathways play essential roles.
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Affiliation(s)
- Quan-Dan Xiang
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, China
| | - Qiang Yu
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, China
| | - Hui Wang
- Institute of Life Science & College of Life Sciences, Nanchang University , Nanchang 330031, China
| | - Ming-Ming Zhao
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, China
| | - Shi-Yu Liu
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, China
| | - Shao-Ping Nie
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, China
| | - Ming-Yong Xie
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, China
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Li WJ, Nie SP, Yao YF, Liu XZ, Shao DY, Gong DM, Cui SW, Phillips GO, He M, Xie MY. Ganoderma atrum Polysaccharide Ameliorates Hyperglycemia-Induced Endothelial Cell Death via a Mitochondria-ROS Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:8182-8191. [PMID: 26323486 DOI: 10.1021/acs.jafc.5b03462] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The aim of the present study was to examine the role of Ganoderma atrum polysaccharide (PSG-1) in reactive oxygen species (ROS) generation and mitochondrial function in hyperglycemia-induced angiopathy. In this work, ROS scavenger, oxidizing agent tert-butylhydroperoxide (tBH), mitochondrial permeability transition pore (mPTP) blockers, and caspase inhibition are used to investigate whether PSG-1 may promote survival of human umbilical vein cells (HUVECs) through preventing the overproduction of ROS and mitochondrial dysfunction. Experimental results show that exposure of HUVECs to 35.5 mmol/L glucose increases the proportion of cells undergoing apoptosis. PSG-1, mPTP blocker, or caspase inhibition can reduce apoptosis and ROS generation. PSG-1 also increases mitochondrial Bcl-2 protein formation and mitochondrial membrane potential (ΔΨm) but inhibits Bax translocation, cytochrome c release, and caspase activation. In summary, vascular protection of PSG-1 can be mediated by a mitochondria-ROS pathway. ROS generation and mPTP induction are critical for high glucose-mediated apoptosis. PSG-1 ameliorates endothelial dysfunction by inhibiting oxidative stress and subsequent mitochondrial dysfunction.
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Affiliation(s)
- Wen-Juan Li
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
| | - Shao-Ping Nie
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
| | - Yu-Fei Yao
- China People's Liberation Army No. 94 Hospital, No. 1028, Jinggangshan Avenue, Nanchang 330000, China
| | - Xiao-Zhen Liu
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
| | - Deng-Yin Shao
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
| | - De-Ming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
- School of Biological Sciences, The University of Auckland , Auckland, Private Bag 92019, New Zealand
| | - Steve W Cui
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
- Guelph Food Research Center, Agriculture and Agri-Food Canada, 93 Stone Road West, Guelph, Ontario, Canada N1G 5C9
| | - Glyn O Phillips
- Phillips Hydrocolloids Research Centre, Glyndwr University , Wrexham, LL11 2AW Wales, U.K
| | - Ming He
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
- Departments of Pharmaceutical Science, Nanchang University , Nanchang 330006, China
| | - Ming-Yong Xie
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
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Sun SL, Guo L, Ren YC, Wang B, Li RH, Qi YS, Yu H, Chang ND, Li MH, Peng HS. Anti-apoptosis effect of polysaccharide isolated from the seeds of Cuscuta chinensis Lam on cardiomyocytes in aging rats. Mol Biol Rep 2014; 41:6117-24. [PMID: 24972571 DOI: 10.1007/s11033-014-3490-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 06/17/2014] [Indexed: 12/19/2022]
Abstract
To investigate the mechanism of apoptosis in myocardial cells of aging rats induced by D-galactose and to study the effect of the Polysaccharide isolated from the seeds of Cuscuta chinensis Lam (PCCL) on apoptosis of cardiomyocytes and its corresponding machinasim in aging rat model. Fifty male SD rats were randomly divided into 5 groups. Normal control group (NC). D-galactose (100 mg · kg(-1)d(-1) for 56 day) indued aging group (MC), D-galactose plus 100 mg kg(-1) d(-1) PCCL group (ML), D-galactose plus 200 mg kg(-1) d(-1) PCCL group (MM), and D-galactose plus 400 mg kg(-1) d(-1) PCCL group (MH). Same volume of solution (water, or PCCL aqueous solution) was given by gavage for 56 days. Then the hearts were collected and apoptosis parameters were evaluated. Caspase-3 and Cyt c were determined by fluorescence spectrometer, the apoptosis rate was assessed by AnnexinV-FITC method by Flow-Cytometry, [Ca(2+)]i and [Ca(2+)]i overloaded by KCL were observed by laser scanning confocal microscopy (LSCM); Bcl-2 and Bax were examined by immunohistochemistry. The content of Cyt C, [Ca(2+)]i of cardiomyocytes, the activity of Caspase-3, Bax expression level in D-galactose induced aging group were higher than NC (p < 0.05). The ratio of Bcl-2/Bax was decreased in D-galactose induced aging group compared to NC. On the other hand, the content of Cyt C, [Ca(2+)]i of cardiomyocytes, the activity of Caspase-3 and apoptosis rate, as well as Bax expression level in all three PCCL groups were decreased compared to galactose induced group (p < 0.05). Bcl-2/Bax ratio was increased in all PCCL groups compared to galactose induced aging group. PCCL could decrease the apoptosis of cardiomyocytes by the mitochondria apoptosis pathway.
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Affiliation(s)
- Shou-Li Sun
- Daqing Campus, Harbin Medical University, Qaqing, China
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