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Liu J, Kong G, Lu C, Wang J, Li W, Lv Z, Tong J, Liu Y, Xiong W, Li H, Fan J. IPSC-NSCs-derived exosomal let-7b-5p improves motor function after spinal cord Injury by modulating microglial/macrophage pyroptosis. J Nanobiotechnology 2024; 22:403. [PMID: 38982427 PMCID: PMC11232148 DOI: 10.1186/s12951-024-02697-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 07/03/2024] [Indexed: 07/11/2024] Open
Abstract
BACKGROUND Following spinal cord injury (SCI), the inflammatory storm initiated by microglia/macrophages poses a significant impediment to the recovery process. Exosomes play a crucial role in the transport of miRNAs, facilitating essential cellular communication through the transfer of genetic material. However, the miRNAs from iPSC-NSCs-Exos and their potential mechanisms leading to repair after SCI remain unclear. This study aims to explore the role of iPSC-NSCs-Exos in microglia/macrophage pyroptosis and reveal their potential mechanisms. METHODS iPSC-NSCs-Exos were characterized and identified using transmission electron microscopy (TEM), nanoparticle tracking analysis (NTA), and Western blot. A mouse SCI model and a series of in vivo and in vitro experiments were conducted to investigate the therapeutic effects of iPSC-NSCs-Exos. Subsequently, miRNA microarray analysis and rescue experiments were performed to confirm the role of miRNAs in iPSC-NSCs-Exos in SCI. Mechanistic studies were carried out using Western blot, luciferase activity assays, and RNA-ChIP. RESULTS Our findings revealed that iPSC-NSCs-derived exosomes inhibited microglia/macrophage pyroptosis at 7 days post-SCI, maintaining myelin integrity and promoting axonal growth, ultimately improving mice motor function. The miRNA microarray showed let-7b-5p to be highly enriched in iPSC-NSCs-Exos, and LRIG3 was identified as the target gene of let-7b-5p. Through a series of rescue experiments, we uncovered the connection between iPSC-NSCs and microglia/macrophages, revealing a novel target for treating SCI. CONCLUSION In conclusion, we discovered that iPSC-NSCs-derived exosomes can package and deliver let-7b-5p, regulating the expression of LRIG3 to ameliorate microglia/macrophage pyroptosis and enhance motor function in mice after SCI. This highlights the potential of combined therapy with iPSC-NSCs-Exos and let-7b-5p in promoting functional recovery and limiting inflammation following SCI.
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Affiliation(s)
- Jie Liu
- Department of Orthopaedics, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China
- Department of Orthopaedics, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, China
| | - Guang Kong
- Department of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chenlin Lu
- Department of Clinical Research Center, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China
| | - Juan Wang
- Department of human anatomy, School of Basic Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wenbo Li
- Department of Orthopaedics, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, China
| | - Zhengming Lv
- Department of Orthopaedics, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China
| | - Jian Tong
- Department of Orthopaedics, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China
| | - Yuan Liu
- Songjiang Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wu Xiong
- Department of Orthopaedics, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, China.
| | - Haijun Li
- Department of Orthopaedics, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China.
| | - Jin Fan
- Department of Orthopaedics, Taizhou School of Clinical Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing Medical University, 366 Taihu Road, Taizhou, Jiangsu, China.
- Department of Orthopaedics, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu, China.
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He X, Zhang Z, Hu M, Lin X, Weng X, Lu J, Fang L, Chen X. Liquiritin Alleviates Inflammation in Lipopolysaccharide-Induced Human Corneal Epithelial Cells. Curr Eye Res 2024:1-12. [PMID: 38767463 DOI: 10.1080/02713683.2024.2353263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 05/04/2024] [Indexed: 05/22/2024]
Abstract
PURPOSE This research was designed to elucidate the anti-inflammatory impacts of liquiritin on lipopolysaccharide (LPS)-activated human corneal epithelial cells (HCECs). METHODS The Cell Counting kit-8 (CCK-8) assay was adopted to assess cell viability. The enzyme-linked immunosorbent assay (ELISA) was used to detect the secretion levels of the proinflammatory cytokines IL-6, IL-8, and TNF-α. Transcriptome analysis was conducted to identify the genes that exhibited differential expression between different treatment. The model group included cells treated with LPS (10 µg/mL), the treatment group comprised cells treated with liquiritin (80 µM) and LPS (10 µg/mL), and the control group consisted of untreated cells. To further validate the expression levels of the selected genes, including CSF2, CXCL1, CXCL2, CXCL8, IL1A, IL1B, IL24, IL6, and LTB, quantitative real-time PCR was performed. The expression of proteins related to the Akt/NF-κB signaling pathway was assessed through western blot analysis. NF-κB nuclear translocation was evaluated through immunofluorescence staining. RESULTS The secretion of IL-6, IL-8, and TNF-α in LPS-induced HCECs was significantly downregulated by liquiritin. Based on the transcriptome analysis, the mRNA expression of pro-inflammatory cytokines, namely IL-6, IL-8, IL-1β, IL-24, TNF-α, and IL-1α was overproduced by LPS stimulation, and suppressed after liquiritin treatment. Furthermore, the Western blot results revealed a remarkable reduction in the phosphorylation degrees of NF-κB p65, IκB, and Akt upon treatment with liquiritin. Additionally, immunofluorescence analysis confirmed liquiritin's inhibition of LPS-induced p65 nuclear translocation. CONCLUSIONS Collectively, these findings imply that liquiritin suppresses the expression of proinflammatory cytokines, and the anti-inflammatory impacts of liquiritin may be caused by its repression of the Akt/NF-κB signaling pathway in LPS-induced HCECs. These data indicate that liquiritin could provide a potential therapeutic application for inflammation-associated corneal diseases.
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Affiliation(s)
- Xian He
- Zhejiang Institute of Medical Device Supervision and Testing, Hangzhou, Zhejiang Province, China
- Key Laboratory of Safety Evaluation of Medical Devices of Zhejiang Province, Hangzhou, Zhejiang Province, China
| | - Ziyang Zhang
- Zhejiang Institute of Medical Device Supervision and Testing, Hangzhou, Zhejiang Province, China
| | - Meili Hu
- Zhejiang Institute of Medical Device Supervision and Testing, Hangzhou, Zhejiang Province, China
| | - Xinyi Lin
- Zhejiang Institute of Medical Device Supervision and Testing, Hangzhou, Zhejiang Province, China
| | - Xu Weng
- Zhejiang Institute of Medical Device Supervision and Testing, Hangzhou, Zhejiang Province, China
| | - Jiajun Lu
- Zhejiang Institute of Medical Device Supervision and Testing, Hangzhou, Zhejiang Province, China
| | - Li Fang
- Zhejiang Institute of Medical Device Supervision and Testing, Hangzhou, Zhejiang Province, China
- Key Laboratory of Safety Evaluation of Medical Devices of Zhejiang Province, Hangzhou, Zhejiang Province, China
| | - Xianhua Chen
- Zhejiang Institute of Medical Device Supervision and Testing, Hangzhou, Zhejiang Province, China
- Key Laboratory of Safety Evaluation of Medical Devices of Zhejiang Province, Hangzhou, Zhejiang Province, China
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Zeng Z, Zou Y, Cai W, Lin FC, Wang H. Roles of CcDFR and CcOMT9 in the cyanidin biosynthesis and development of Cordyceps cicadae. Front Microbiol 2024; 15:1353710. [PMID: 38511011 PMCID: PMC10953825 DOI: 10.3389/fmicb.2024.1353710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 02/20/2024] [Indexed: 03/22/2024] Open
Abstract
Introduction Cordyceps cicadae is a traditional Chinese medicinal fungus known for its rich production of bioactive substances, particularly cyanidin, an anthocyanin commonly found in plants with notable anti-inflammatory, anti-tumor, antiviral, and antibacterial properties. This study revealed two key genes, CcDFR and CcOMT9, affecting cyanidin biosynthesis in C. cicadae. Methods The roles of these genes in cyanidin production, growth, and development were elucidated through the gene knockout method, phenotypic analysis, transcriptomics, and metabolomics. Results CcDFR deletion led to reduced cyanidin-3-O-glucoside (C3G), suppressed expression of cyanidin biosynthesis genes, impaired synnemata formation, decreased polysaccharide and adenosine content, and diminished chitinase activity. Meanwhile, the ΔCcOMT9 mutant exhibited an increase in C3G production, promoted expression of cyanidin biosynthesis genes and rising bioactive compounds, suppressed RNA methylation, and led to phenylalanine accumulation with no effect on fruiting body formation. Discussion We revealed a distinct anthocyanin biosynthesis pathway in C. cicadae and identified two genes with opposite functions, laying the foundation for future genetic modification of cyanidin-producing strains using modern biological techniques. This will shorten the production period of this valuable compound, facilitating the industrial-scale production of cyanidin.
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Affiliation(s)
- Zixuan Zeng
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Yu Zou
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Weiming Cai
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Fu-Cheng Lin
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Hongkai Wang
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
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Feng J, Zhang Y. The potential benefits of polyphenols for corneal diseases. Biomed Pharmacother 2023; 169:115862. [PMID: 37979379 DOI: 10.1016/j.biopha.2023.115862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/30/2023] [Accepted: 11/05/2023] [Indexed: 11/20/2023] Open
Abstract
The cornea functions as the primary barrier of the ocular surface, regulating temperature and humidity while providing protection against oxidative stress, harmful stimuli and pathogenic microorganisms. Corneal diseases can affect the biomechanical and optical properties of the eye, resulting in visual impairment or even blindness. Due to their diverse origins and potent biological activities, plant secondary metabolites known as polyphenols offer potential advantages for treating corneal diseases owing to their anti-inflammatory, antioxidant, and antibacterial properties. Various polyphenols and their derivatives have demonstrated diverse mechanisms of action in vitro and in vivo, exhibiting efficacy against a range of corneal diseases including repair of tissue damage, treatment of keratitis, inhibition of neovascularization, alleviation of dry eye syndrome, among others. Therefore, this article presents a concise overview of corneal and related diseases, along with an update on the research progress of natural polyphenols in safeguarding corneal health. A more comprehensive understanding of natural polyphenols provides a novel perspective for secure treatment of corneal diseases.
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Affiliation(s)
- Jing Feng
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Yangyang Zhang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China.
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Deng Z, Li L. Effect of miR-663 on atherosclerosis by regulating the proliferation of vascular smooth muscle cells in lipid plaques. Vascular 2023; 31:1240-1252. [PMID: 35599617 DOI: 10.1177/17085381221098826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Atherosclerosis (AS) is the main cause of coronary heart disease, cerebral infarction, and peripheral vascular disease. microRNAs (miRNAs) are widely distributed in the human body and closely related to the pathological progress of AS. This study probed into the function of miR-663 in AS. METHODS The atherosclerotic plaques, cholesterol (CHOL), low-density lipoprotein (LDL), inflammatory factors, and miR-663 expression in ApoE-/- mice on high-fat diet were evaluated. The overexpressing miR-663 adenovirus was injected into ApoE-/- mice, followed by measurement of type III collagen (Col III), matrix metalloproteinase (MMP)-2, α-SMA, osteopontin, and CD31. miR-663 mimic or inhibitor was introduced into vascular smooth muscle cells (VSMCs) stimulated by oxidized LDL (Ox-LDL), and cell proliferation and IL-6 and IL-18 secretion were evaluated. The binding relationship between miR-663 and HMGA2 was verified, followed by the determination of HMGA2 role in VSMC proliferation. RESULTS Atherosclerotic plaques appeared in ApoE-/- mice on high-fat diet, with increased CHOL, LDL, osteopontin, MMP-2 and Col III and decreased miR-663, α-SMA and CD31. miR-663 overexpression downregulated osteopontin, MMP-2 and Col III and upregulated α-SMA and CD31 in ApoE-/- mice on high-fat diet. With Ox-LDL concentration increase, VSMC proliferation was promoted and miR-663 was downregulated. miR-663 overexpression inhibited proliferation of Ox-LDL-stimulated VSMCs and reduced levels of inflammatory factor levels, whereas silencing miR-663 did the opposite. miR-663 targeted HMGA2. HMGA2 overexpression partially reversed the inhibitory effect of miR-663 overexpression on VSMC proliferation. CONCLUSION miR-663 targeted HMGA2 to inhibit VSMC proliferation and AS development, which may offer insights into AS treatment.
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Affiliation(s)
- Zhisheng Deng
- Department of Geriatrics, Nanchang Hospital Sun Yat-Sen University (The First Hospital of Nanchang), Nanchang, China
| | - Lihua Li
- Department of Geriatrics, Nanchang Hospital Sun Yat-Sen University (The First Hospital of Nanchang), Nanchang, China
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Wang JY, Zhang FL, Li XX, Zhu KX, Zuo N, Wang JJ, Shen W, Li L. Cyanidin-3- O-glucoside Mitigates the Ovarian Defect Induced by Zearalenone via p53-GADD45a Signaling during Primordial Follicle Assembly. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16715-16726. [PMID: 37889105 DOI: 10.1021/acs.jafc.3c03315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Zearalenone (ZEN) is well known as a kind of endocrine disruptor whose exposure is capable of causing reproductive toxicity in animals. Cyanidin-3-O-glucoside (C3G) is a derivative of cyanidin and owns multiple biofunctions, and prior efforts have suggested that C3G has therapeutic actions for reproductive diseases. In this article, a ZEN exposure model during primordial follicle assembly was constructed using the in vitro culture platform of neonatal mouse ovaries. We investigated the protective effect of C3G on ZEN-induced ovarian toxicity during primordial follicle assembly in mice, as well as its potential mechanism. Interestingly, we observed that C3G could effectively protect the ovary from ZEN damage, mainly by restoring primordial follicle assembly, which upregulated the expression of LHX8 and SOHLH1 proteins and relieved ZEN-induced DNA damage. Next, to explore the mechanism by which C3G rescued ZEN-induced injury, we performed RNA sequencing (RNA-seq). The bioinformatic analysis illustrated that the rescue pathway of C3G was associated with p53-Gadd45a signaling and cell cycle. Then, western blotting and flow cytometry results revealed that C3G restored the expression levels of cyclin-dependent kinase 6 (CDK6) and cyclin D2 (CCND2) and regulated the ovarian cell cycle to normal. In conclusion, our findings manifested that C3G could alleviate ZEN-induced primordial follicle assembly impairment by restoring the cell cycle involved in p53-GADD45a signaling.
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Affiliation(s)
- Jing-Ya Wang
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
| | - Fa-Li Zhang
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, China
| | - Xiu-Xiu Li
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, China
| | - Ke-Xin Zhu
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
| | - Ning Zuo
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
| | - Jun-Jie Wang
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
| | - Wei Shen
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
| | - Lan Li
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
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Du YW, Li XK, Wang TT, Zhou L, Li HR, Feng L, Ma H, Liu HB. Cyanidin-3-glucoside inhibits ferroptosis in renal tubular cells after ischemia/reperfusion injury via the AMPK pathway. Mol Med 2023; 29:42. [PMID: 37013504 PMCID: PMC10069074 DOI: 10.1186/s10020-023-00642-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 03/21/2023] [Indexed: 04/05/2023] Open
Abstract
BACKGROUND Ferroptosis, which is characterized by lipid peroxidation and iron accumulation, is closely associated with the pathogenesis of acute renal injury (AKI). Cyanidin-3-glucoside (C3G), a typical flavonoid that has anti-inflammatory and antioxidant effects on ischemia‒reperfusion (I/R) injury, can induce AMP-activated protein kinase (AMPK) activation. This study aimed to show that C3G exerts nephroprotective effects against I/R-AKI related ferroptosis by regulating the AMPK pathway. METHODS Hypoxia/reoxygenation (H/R)-induced HK-2 cells and I/R-AKI mice were treated with C3G with or without inhibiting AMPK. The level of intracellular free iron, the expression of the ferroptosis-related proteins acyl-CoA synthetase long chain family member 4 (ACSL4) and glutathione peroxidase 4 (GPX4), and the levels of the lipid peroxidation markers 4-hydroxynonenal (4-HNE), lipid reactive oxygen species (ROS) and malondialdehyde (MDA) were examined. RESULTS We observed the inhibitory effect of C3G on ferroptosis in vitro and in vivo, which was characterized by the reversion of excessive intracellular free iron accumulation, a decrease in 4-HNE, lipid ROS, MDA levels and ACSL4 expression, and an increase in GPX4 expression and glutathione (GSH) levels. Notably, the inhibition of AMPK by CC significantly abrogated the nephroprotective effect of C3G on I/R-AKI models in vivo and in vitro. CONCLUSION Our results provide new insight into the nephroprotective effect of C3G on acute I/R-AKI by inhibiting ferroptosis by activating the AMPK pathway.
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Affiliation(s)
- Yi-Wei Du
- Department of Nephrology, Tangdu Hospital, Air Force Military Medical University (Fourth Military Medical University), Xi'an, 710038, China
| | - Xiao-Kang Li
- Department of Cardiology, Tangdu Hospital, Air Force Military Medical University (Fourth Military Medical University), Xi'an, 710038, China
| | - Ting-Ting Wang
- Department of Nephrology, Tangdu Hospital, Air Force Military Medical University (Fourth Military Medical University), Xi'an, 710038, China
| | - Lu Zhou
- Department of Nephrology, Tangdu Hospital, Air Force Military Medical University (Fourth Military Medical University), Xi'an, 710038, China
| | - Hui-Rong Li
- Department of Nephrology, Tangdu Hospital, Air Force Military Medical University (Fourth Military Medical University), Xi'an, 710038, China
| | - Lan Feng
- Department of Nephrology, Tangdu Hospital, Air Force Military Medical University (Fourth Military Medical University), Xi'an, 710038, China
| | - Heng Ma
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Air Force Military Medical University (Fourth Military Medical University), Xi'an, 710038, China.
| | - Hong-Bao Liu
- Department of Nephrology, Tangdu Hospital, Air Force Military Medical University (Fourth Military Medical University), Xi'an, 710038, China.
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Yu Y, Li K, Xue R, Liu S, Liu X, Wu K. A20 functions as a negative regulator of the lipopolysaccharide-induced inflammation in corneal epithelial cells. Exp Eye Res 2023; 228:109392. [PMID: 36717050 DOI: 10.1016/j.exer.2023.109392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 12/01/2022] [Accepted: 01/25/2023] [Indexed: 01/28/2023]
Abstract
A20, also called TNFAIP3, is a crucial regulator of inflammation in various diseases but has not evidenced its function in the cornea. We aimed to evaluate the existence and the functions of A20 in human corneal epithelial (HCE-T) cells. After being treated with lipopolysaccharide (LPS) in different concentrations or at separate times, cells were collected to analyze A20 expressions. We then constructed the A20 knockdown system by siRNA and the A20 overexpressing system by lentivirus transduction. Systems were further exposed to medium with or without LPS for indicated times. Next, we evaluated the production of inflammatory cytokines (IL-6 and IL-8) by qRT-PCR and ELISA. Also, the translocation of P65 and the phosphorylation of P65, P38 and JNK were observed in two systems. In addition, we used the nuclear factor kappa-B (NF-κB) antagonist TPCA-1 for the pretreatment in cells and then detected the A20 expressions. We found a low basal expression of A20 in HCE-T cells, and the expressions could be dose-dependently induced by LPS, peaking at 4 h in protein level after stimulation. Both the A20 knockdown and A20 overexpressing systems were confirmed to be effective. After the LPS treatment, productions of IL-6 and IL-8 were enhanced in the A20 knockdown system and reduced in the A20 overexpressing system. A20 reduced the translocation of P65 into the nucleus and the phosphorylation of P65, P38 and JNK. Furthermore, TPCA-1 pretreatment reduced the expression of A20 in cells. We concluded that A20 is a potent regulator for corneal epithelium's reaction to inflammation, and it thus is expected to be a potential therapy target for ocular surface diseases.
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Affiliation(s)
- Yubin Yu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Kunke Li
- Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, China
| | - Ran Xue
- Department of Ophthalmology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Sihao Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Xiuping Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Kaili Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China.
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Therapeutic role of adipose-derived mesenchymal stem cells-derived extracellular vesicles in rats with obstructive sleep apnea hypopnea syndrome. Regen Ther 2023; 22:210-223. [PMID: 36926469 PMCID: PMC10011058 DOI: 10.1016/j.reth.2023.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/03/2023] [Accepted: 01/12/2023] [Indexed: 03/06/2023] Open
Abstract
Background Obstructive sleep apnea hypopnea syndrome (OSAHS) is an underestimated sleep disorder that leads to multiple organ damages, including lung injury (LI). This paper sought to analyze the molecular mechanism of extracellular vesicles (EVs) from adipose-derived mesenchymal stem cells (ADSCs) in OSAHS-induced lung injury (LI) via the miR-22-3p/histone lysine demethylase 6 B (KDM6B)/high mobility group AT-hook 2 (HMGA2) axis. Methods ADSCs and ADSCs-EVs were separated and characterized. Chronic intermittent hypoxia (CIH) was used to mimic OSAHS-LI, followed by ADSCs-EVs treatment and hematoxylin and eosin staining, TUNEL, ELISA, and assays of inflammation and oxidative stress (MPO/ROS/MDA/SOD). The CIH cell model was established and treated with ADSCs-EVs. Cell injury was assessed by the assays of MTT, TUNEL, ELISA, and others. Levels of miR-22-3p, KDM6B, histone H3 trimethylation at lysine 27 (H3K27me3), and HMGA2 were determine by RT-qPCR or Western blot analysis. The transfer of miR-22-3p by ADSCs-EVs was observed by fluorescence microscopy. Gene interactions were analyzed by dual-luciferase assay or chromatin immunoprecipitation. Results ADSCs-EVs effectively alleviated OSAHS-LI by reducing lung tissue injury, apoptosis, oxidative stress, and inflammation. In vitro, ADSCs-EVs increased cell viability and reduced apoptosis, inflammation and oxidative stress. ADSCs-EVs delivered enveloped miR-22-3p into pneumonocytes to upregulate miR-22-3p expression, inhibit KDM6B expression, increase H3K27me3 levels on the HMGA2 promoter, and decrease HMGA2 mRNA levels. Overexpression of KDM6B or HMGA2 attenuated the protective role of ADSCs-EVs in OSAHS-LI. Conclusion ADSCs-EVs transferred miR-22-3p to pneumonocytes and reduced apoptosis, inflammation, and oxidative stress through KDM6B/HMGA2, mitigating OSAHS-LI progression.
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Capetini VC, Quintanilha BJ, de Oliveira DC, Nishioka AH, de Matos LA, Ferreira LRP, Ferreira FM, Sampaio GR, Hassimotto NMA, Lajolo FM, Fock RA, Rogero MM. Blood orange juice intake modulates plasma and PBMC microRNA expression in overweight and insulin-resistant women: impact on MAPK and NFκB signaling pathways. J Nutr Biochem 2023; 112:109240. [PMID: 36442716 DOI: 10.1016/j.jnutbio.2022.109240] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 07/28/2022] [Accepted: 10/12/2022] [Indexed: 11/27/2022]
Abstract
Blood orange consumption presents potential health benefits and may modulate epigenetic mechanisms such as microRNAs (miRNAs) expression. MiRNAs are non-coding RNAs responsible for post-transcriptional gene regulation, and these molecules can also be used as biomarkers in body fluids. This study was designed to investigate the effect of chronic blood orange juice (BOJ) intake on the inflammatory response and miRNA expression profile in plasma and blood cells in overweight women. The study cohort was comprised of twenty women aged 18-40 years old, diagnosed as overweight, who consumed 500 mL/d of BOJ for four weeks. Clinical data were collected at baseline and after 4 weeks of juice consumption, e.g., anthropometric and hemodynamic parameters, food intake, blood cell count, and metabolic and inflammatory biomarkers. BOJ samples were analyzed and characterized. Additionally, plasma and blood cells were also collected for miRNA expression profiling and evaluation of the expression of genes and proteins in the MAPK and NFκB signaling pathways. BOJ intake increased the expression of miR-144-3p in plasma and the expression of miR-424-5p, miR-144-3p, and miR-130b-3p in peripheral blood mononuclear cells (PBMC). Conversely, the beverage intake decreased the expression of let-7f-5p and miR-126-3p in PBMC. Computational analyses identified different targets of the dysregulated miRNA on inflammatory pathways. Furthermore, BOJ intake increased vitamin C consumption and the pJNK/JNK ratio and decreased the expression of IL6 mRNA and NFκB protein. These results demonstrate that BOJ regulates the expression of genes involved in the inflammatory process and decreases NFкB-protein expression in PBMC.
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Affiliation(s)
- Vinícius Cooper Capetini
- Department of Nutrition, School of Public Health, University of São Paulo, São Paulo, Brazil; Food Research Center (FoRC), CEPID-FAPESP (Research Innovation and Dissemination Centers São Paulo Research Foundation), São Paulo, Brazil
| | - Bruna J Quintanilha
- Department of Nutrition, School of Public Health, University of São Paulo, São Paulo, Brazil; Food Research Center (FoRC), CEPID-FAPESP (Research Innovation and Dissemination Centers São Paulo Research Foundation), São Paulo, Brazil
| | - Dalila Cunha de Oliveira
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Alessandra Harumi Nishioka
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil; Food Research Center (FoRC), CEPID-FAPESP (Research Innovation and Dissemination Centers São Paulo Research Foundation), São Paulo, Brazil
| | - Luciene Assaf de Matos
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Ludmila Rodrigues Pinto Ferreira
- Morphology Department, Institute of Biological Sciences of the Federal University of Minas Gerais (ICB/UFMG), Belo Horizonte, Brazil
| | | | - Geni Rodrigues Sampaio
- Department of Nutrition, School of Public Health, University of São Paulo, São Paulo, Brazil
| | - Neuza Mariko Aymoto Hassimotto
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil; Food Research Center (FoRC), CEPID-FAPESP (Research Innovation and Dissemination Centers São Paulo Research Foundation), São Paulo, Brazil
| | - Franco Maria Lajolo
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil; Food Research Center (FoRC), CEPID-FAPESP (Research Innovation and Dissemination Centers São Paulo Research Foundation), São Paulo, Brazil
| | - Ricardo Ambrósio Fock
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Marcelo Macedo Rogero
- Department of Nutrition, School of Public Health, University of São Paulo, São Paulo, Brazil; Food Research Center (FoRC), CEPID-FAPESP (Research Innovation and Dissemination Centers São Paulo Research Foundation), São Paulo, Brazil.
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11
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Huang L, Tang H, Hu J. METTL3 Attenuates Inflammation in Fusarium solani-Induced Keratitis via the PI3K/AKT Signaling Pathway. Invest Ophthalmol Vis Sci 2022; 63:20. [PMID: 36169946 PMCID: PMC9526359 DOI: 10.1167/iovs.63.10.20] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 09/12/2022] [Indexed: 12/03/2022] Open
Abstract
Purpose Our previous investigations revealed a significant role of methyltransferase-like 3 (METTL3)-mediated N6-methyladenosine (m6A) modification in the development of corneal inflammation in Fusarium infection, but the exact mechanism is unknown. Therefore, this research aimed to explore how METTL3 affects the inflammatory process of fungal keratitis (FK) in mice. Methods We established in vitro and in vivo models by inoculating mice and primary corneal stromal cells with F. solani. METTL3 expression was confirmed by real-time quantitative polymerase chain reaction, immunofluorescence, and western blotting. After that, siRNAMETTL3 and AAV-sh-METTL3 were transfected into cells and mice to explore the role of METTL3 in the PI3K/AKT signaling pathway and inflammation. PI3K, p-PI3K, AKT, and p-AKT expression was analyzed by western blotting. Viability of corneal stromal cells was measured using a Cell Counting Kit-8 (CCK-8). Additionally, we detected interleukin (IL)-6, IL-1β, and tumor necrosis factor alpha (TNF-α) levels in corneal tissues and analyzed the role of METTL3 in inflammation in FK using slit-lamp biomicroscopy and hematoxylin and eosin staining. Results Here, our results show that METTL3 increased in mouse FK, and the expression of p-PI3K and p-AKT decreased when METTL3 was downregulated. We also found that knockdown of METTL3 expression attenuated the inflammatory response and decreased TNF-α, IL-1β, and IL-6 expression in corneal-infected mice. Furthermore, inhibition of the PI3K/AKT pathway attenuated the inflammatory response of FK, decreased the expression of the above inflammatory factors, and enhanced the viability of corneal stromal cells. Conclusions Based on the study results, METTL3 downregulation attenuates Fusarium-induced corneal inflammation via the PI3K/AKT signaling pathway.
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Affiliation(s)
- Liwei Huang
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fu Zhou, China
| | - Hanfeng Tang
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fu Zhou, China
| | - Jianzhang Hu
- Department of Ophthalmology, Fujian Medical University Union Hospital, Fu Zhou, China
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12
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Peniche-Pavía HA, Guzmán TJ, Magaña-Cerino JM, Gurrola-Díaz CM, Tiessen A. Maize Flavonoid Biosynthesis, Regulation, and Human Health Relevance: A Review. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27165166. [PMID: 36014406 PMCID: PMC9413827 DOI: 10.3390/molecules27165166] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/01/2022] [Accepted: 08/10/2022] [Indexed: 11/25/2022]
Abstract
Maize is one of the most important crops for human and animal consumption and contains a chemical arsenal essential for survival: flavonoids. Moreover, flavonoids are well known for their beneficial effects on human health. In this review, we decided to organize the information about maize flavonoids into three sections. In the first section, we include updated information about the enzymatic pathway of maize flavonoids. We describe a total of twenty-one genes for the flavonoid pathway of maize. The first three genes participate in the general phenylpropanoid pathway. Four genes are common biosynthetic early genes for flavonoids, and fourteen are specific genes for the flavonoid subgroups, the anthocyanins, and flavone C-glycosides. The second section explains the tissue accumulation and regulation of flavonoids by environmental factors affecting the expression of the MYB-bHLH-WD40 (MBW) transcriptional complex. The study of transcription factors of the MBW complex is fundamental for understanding how the flavonoid profiles generate a palette of colors in the plant tissues. Finally, we also include an update of the biological activities of C3G, the major maize anthocyanin, including anticancer, antidiabetic, and antioxidant effects, among others. This review intends to disclose and integrate the existing knowledge regarding maize flavonoid pigmentation and its relevance in the human health sector.
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Affiliation(s)
- Héctor A. Peniche-Pavía
- Departamento de Bioquímica y Biotecnología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional Unidad Irapuato, Libramiento Norte Km. 9.6, Irapuato 36824, Guanajuato, Mexico
| | - Tereso J. Guzmán
- Department of Pharmacology, Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstraße 48, 48149 Münster, Germany
| | - Jesús M. Magaña-Cerino
- División Académica de Ciencias de la Salud, Centro de Investigación y Posgrado, Universidad Juárez Autónoma de Tabasco, Av. Gregorio Méndez Magaña 2838-A, Col. Tamulté de las Barrancas, Villahermosa 86150, Tabasco, Mexico
| | - Carmen M. Gurrola-Díaz
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Instituto de Investigación en Enfermedades Crónico Degenerativas, Instituto Transdisciplinar de Investigación e Innovación en Salud, Universidad de Guadalajara, C. Sierra Mojada 950. Col. Independencia, Guadalajara 44340, Jalisco, Mexico
- Correspondence: ; Tel.: +52-33-10585200 (ext. 33930)
| | - Axel Tiessen
- Departamento de Bioquímica y Biotecnología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional Unidad Irapuato, Libramiento Norte Km. 9.6, Irapuato 36824, Guanajuato, Mexico
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13
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The role of the PI3K/AKT signalling pathway in the corneal epithelium: recent updates. Cell Death Dis 2022; 13:513. [PMID: 35641491 PMCID: PMC9156734 DOI: 10.1038/s41419-022-04963-x] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 05/14/2022] [Accepted: 05/17/2022] [Indexed: 12/14/2022]
Abstract
Phosphatidylinositol 3 kinase (PI3K)/AKT (also called protein kinase B, PKB) signalling regulates various cellular processes, such as apoptosis, cell proliferation, the cell cycle, protein synthesis, glucose metabolism, and telomere activity. Corneal epithelial cells (CECs) are the outermost cells of the cornea; they maintain good optical performance and act as a physical and immune barrier. Various growth factors, including epidermal growth factor receptor (EGFR) ligands, insulin-like growth factor 1 (IGF1), neurokinin 1 (NK-1), and insulin activate the PI3K/AKT signalling pathway by binding their receptors and promote antiapoptotic, anti-inflammatory, proliferative, and migratory functions and wound healing in the corneal epithelium (CE). Reactive oxygen species (ROS) regulate apoptosis and inflammation in CECs in a concentration-dependent manner. Extreme environments induce excess ROS accumulation, inhibit PI3K/AKT, and cause apoptosis and inflammation in CECs. However, at low or moderate levels, ROS activate PI3K/AKT signalling, inhibiting apoptosis and stimulating proliferation of healthy CECs. Diabetes-associated hyperglycaemia directly inhibit PI3K/AKT signalling by increasing ROS and endoplasmic reticulum (ER) stress levels or suppressing the expression of growth factors receptors and cause diabetic keratopathy (DK) in CECs. Similarly, hyperosmolarity and ROS accumulation suppress PI3K/AKT signalling in dry eye disease (DED). However, significant overactivation of the PI3K/AKT signalling pathway, which mediates inflammation in CECs, is observed in both infectious and noninfectious keratitis. Overall, upon activation by growth factors and NK-1, PI3K/AKT signalling promotes the proliferation, migration, and anti-apoptosis of CECs, and these processes can be regulated by ROS in a concentration-dependent manner. Moreover, PI3K/AKT signalling pathway is inhibited in CECs from individuals with DK and DED, but is overactivated by keratitis.
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Wu X, Pu L, Chen W, Zhao Q, Wu G, Li D, Zhu H. LY294002 attenuates inflammatory response in endotoxin-induced uveitis by downregulating JAK3 and inactivating the PI3K/Akt signaling. Immunopharmacol Immunotoxicol 2022; 44:510-518. [PMID: 35344456 DOI: 10.1080/08923973.2022.2055565] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
CONTEXT Uveitis is a prevalent inflammatory eye disease that damages the vision of patients and even leads to blindness. LY294002, an inhibitor of PI3K, was reported to suppress the inflammation and alleviate the progression of many diseases. However, the function of LY294002 in uveitis is unclear. OBJECTIVE This study aimed to explore the function of LY294002 in endotoxin-induced uveitis (EIU). MATERIALS AND METHODS EIU rat models were established via a single intravitreal injection of LPS. At 24 h after LPS injection, the rats received LY294002 treatment for 14 days. The histopathology was observed by H&E staining. The concentration of proinflammatory cytokines in aqueous humor was tested by ELISA. The expression of proinflammatory cytokines in the iris ciliary body (ICB) and retina of EIU rats were detected by RT-qPCR. JAK3, PI3K, and Akt expression were assessed by RT-qPCR and western blotting. Translocation of Akt in rat retinal Müller cells (rMC-1) was evaluated by immunofluorescence staining. RESULTS LY294002 alleviated ocular inflammation and decreased inflammatory cell infiltration in the anterior chamber, iris, ciliary body, vitreous cavity, and retina of EIU rats. LY294002 decreased the concentration of proinflammatory cytokines INF-γ, IL-17, IL-6, TNF-α, and IL-1β in aqueous humor and their expression in the ICB and retina of EIU rats. LY294002 downregulated JAK3 expression in EIU rats. LY294002 inhibited p-PI3K and p-Akt expression in EIU rats and restrained Akt translocation from cytoplasm to cell membrane in LPS-treated rMC-1 cells. CONCLUSION LY294002 ameliorates inflammation in EIU by downregulating JAK3 and inactivating the PI3K/Akt signaling.
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Affiliation(s)
- Xinyang Wu
- School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lijun Pu
- Department of Ophthalmology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu, China
| | - Wei Chen
- Department of Ophthalmology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu, China
| | - Qi Zhao
- Department of Ophthalmology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu, China
| | - Geping Wu
- Institute of Translational Medicine, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu, China
| | - Di Li
- Institute of Translational Medicine, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu, China
| | - Hongyan Zhu
- Institute of Translational Medicine, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu, China
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15
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Hussein RM, Youssef AM, Magharbeh MK, Al-Dalaen SM, Al-Jawabri NA, Al-Nawaiseh TN, Al-Jwanieh A, Al-Ani FS. Protective Effect of Portulaca oleracea Extract Against Lipopolysaccharide-Induced Neuroinflammation, Memory Decline, and Oxidative Stress in Mice: Potential Role of miR-146a and miR-let 7. J Med Food 2022; 25:807-817. [PMID: 35235435 DOI: 10.1089/jmf.2021.0097] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Neuroinflammation is an adaptive immune response to the central nervous system (CNS) injury induced by infection or toxins. MicroRNAs (miRs) showed critical roles in neuroinflammation as either proinflammatory or anti-inflammatory molecules. Interestingly, Portulaca oleracea (purslane) is an edible plant capable of ameliorating several diseases, including headache, burns, and diabetes; however, its effect on the neuroinflammation-associated miRs was not previously investigated. This study aimed to investigate the effect of aqueous purslane extract on the neuroinflammation induced by lipopolysaccharide (LPS) in mice and to identify its effect on animal cognition, oxidative stress, and expressions of miR-146a and miR-let 7. Adult mice were divided into the following groups: Normal group, LPS group, and Purslane+LPS group. Novel target recognition test, brain histopathology, and measurement of oxidative stress and inflammatory markers were performed. The results showed that LPS group exhibited significant decline in the cognitive memory, brain histopathological injury and a decrease in the number of intact neurons compared to the normal group. Furthermore, the LPS group showed a significant increase in malondialdehyde concentration, whereas superoxide dismutase and catalase activities were decreased. The LPS group also showed an increase in the inflammatory markers tumor necrosis factor-α and nuclear factor kappa B and downregulation of miR-146a and miR-let 7 expressions in the brain cells compared to the normal group, P value <.05. Interestingly, all these changes were reversed by administration of the aqueous purslane extract. In conclusion, the aqueous purslane extract protected from LPS-induced neuroinflammation and memory decline in mice through antioxidant and anti-inflammatory effect where upregulation of miR-146a and miR-1et 7 expressions was involved.
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Affiliation(s)
- Rasha M Hussein
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Mutah University, Al-Karak, Jordan.,Department of Biochemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Ahmed M Youssef
- Department of Pharmacology, Faculty of Pharmacy, Mutah University, Al-Karak, Jordan
| | - Mousa K Magharbeh
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mutah University, Al-Karak, Jordan
| | - Saed M Al-Dalaen
- Department of Pharmacology, Faculty of Medicine, Mutah University, Al-Karak, Jordan
| | - Nariman A Al-Jawabri
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mutah University, Al-Karak, Jordan
| | - Taymaa N Al-Nawaiseh
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Mutah University, Al-Karak, Jordan
| | - Abdullah Al-Jwanieh
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Mutah University, Al-Karak, Jordan
| | - Fakhir S Al-Ani
- Department of Physiology, Faculty of Medicine, Mutah University, Al-Karak, Jordan
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16
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Bai X, Lian Y, Hu C, Yang S, Pei B, Yao M, Zhu X, Shang L, Li Z. Cyanidin-3-glucoside protects against high glucose-induced injury in human nucleus pulposus cells by regulating the Nrf2/HO-1 signaling. J Appl Toxicol 2021; 42:1137-1145. [PMID: 34964128 DOI: 10.1002/jat.4281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 11/20/2021] [Accepted: 12/03/2021] [Indexed: 11/09/2022]
Abstract
Cyanidin-3-glucoside (C3G) is a well-known natural anthocyanin with antioxidant and anti-inflammatory properties. In this study, we explored the role and action mechanism of C3G in high glucose (HG)-induced damage of human nucleus pulposus cells (HNPCs). Cell viability was assessed by CCK-8 assay. TUNEL assay was performed for detecting apoptotic rate. Western blot was performed to determine the expression levels of cl-caspase-3, caspase-3, Bax, Bim, collagen II, aggrecan, MMP-3, MMP-13, and ADAMTS5. ROS generation was analyzed using DCFH-DA staining. The Nrf2 was knocked down or overexpressed in HNPCs through transfection with si-Nrf2 or pcDNA3.0-Nrf2. C3G treatment (12.5, 25, and 50 μM) improved cell viability of HNPCs under HG condition. HG-induced cell apoptosis of HNPCs was attenuated by C3G with decreased apoptotic rate and relative levels of cl-caspase-3/caspase-3, Bax, and Bim. C3G treatment caused significant increase in expression levels of collagen II and aggrecan and decrease in the relative levels of MMP-3, MMP-13, and ADAMTS5. After treatment with C3G, ROS generation in HNPCs was markedly reduced. Treatment with N-Acetylcysteine (NAC) reversed HG-induced cell apoptosis and extracellular matrix (ECM) degradation. C3G treatment induced the expression of Nrf2 and HO-1 in HG-induced HNPCs. Moreover, knockdown of Nrf2 reversed the inhibitory effect of C3G on ROS production. Summarily, C3G exerted a protective effect on ROS-mediated cellular damage in HNPCs under HG condition, which was attributed to the induction of the Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Xiaoliang Bai
- Department of Spine, Tianjin Hospital, Tianjin, China.,The Fifth Department of Orthopedics, Baoding First Central Hospital, Baoding, Hebei, China
| | - Yong Lian
- The Fifth Department of Orthopedics, Baoding First Central Hospital, Baoding, Hebei, China
| | - Changqing Hu
- The Fifth Department of Orthopedics, Baoding First Central Hospital, Baoding, Hebei, China
| | - Shuai Yang
- The Fifth Department of Orthopedics, Baoding First Central Hospital, Baoding, Hebei, China
| | - Bo Pei
- The Fifth Department of Orthopedics, Baoding First Central Hospital, Baoding, Hebei, China
| | - Mingyan Yao
- Department of Endocrinology, Baoding First Central Hospital, Baoding, Hebei, China
| | - Xiaojuan Zhu
- Department of Geriatrics, Baoding First Central Hospital, Baoding, Hebei, China
| | - Lin Shang
- Department of Obstetrics and Gynecology, Baoding First Central Hospital, Baoding, Hebei, China
| | - Zhihong Li
- Department of Endocrinology, Baoding First Central Hospital, Baoding, Hebei, China
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17
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Ye X, Chen W, Tu P, Jia R, Liu Y, Li Y, Tang Q, Zheng X, Chu Q. Food-derived cyanidin-3- O-glucoside alleviates oxidative stress: evidence from the islet cell line and diabetic db/db mice. Food Funct 2021; 12:11599-11610. [PMID: 34713882 DOI: 10.1039/d1fo02385c] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Type 2 diabetes mellitus is a disease associated with an oxidative milieu that often leads to adverse health outcomes. Multiple anthocyanins have been reported to possess outstanding antioxidant activity, however, their effects on hyperglycemia-related oxidative stress remain elusive. In the present study, cyanidin-3-O-glucoside (C3G), a typical anthocyanin with various widely accepted health benefits, was applied to alleviate oxidative stress in pancreas islets under the conditions of hyperglycemia. Firstly, significantly decreased mitochondrial membrane potential (MMP) and antioxidant enzymes, as well as increased reactive oxygen species (ROS) and O2- levels, were detected after exposure to a series of concentrations of high glucose (HG) and palmitic acid (PA), which manifested oxidative stress triggered by mitochondrial damage. To evaluate the antioxidant effect of C3G in vitro, the islet cell line NIT-1 was used, and results proved that C3G could effectively relieve cellular oxidative stress induced by HG and PA. Furthermore, we found that the antioxidant effect of C3G was achieved by activating mitophagy via the PINK1-PARKIN signaling pathway. More importantly, an autophagy inhibitor chloroquine (CQ) was added to verify our findings at the protein level, and we observed the co-localization of mitochondria and lysosomes, which may form autophagolysosomes to clean damaged mitochondria. Immediately afterwards, more studies were conducted on pancreatic islets of diabetic db/db mice to verify the antioxidant effect of C3G discovered in islet cells. Along with the decline in fasting blood glucose, the oxidative stress in pancreas islets was successfully alleviated in diabetic db/db mice after supplementation with C3G. This was demonstrated by increased levels of ROS, and the impaired activities of anti-oxidative enzymes superoxide dismutase (SOD) and catalase (CAT) were partly reversed by C3G intervention. Our study has provided evidence for the alleviation effect of C3G against oxidative stress in pancreas islets, which may provide enlightenment for improving the health situation of diabetic patients in the future.
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Affiliation(s)
- Xiang Ye
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China.
| | - Wen Chen
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China.
| | - Pengcheng Tu
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China.
| | - Ruoyi Jia
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China.
| | - Yangyang Liu
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China.
| | - Yonglu Li
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China.
| | - Qiong Tang
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China.
| | - Xiaodong Zheng
- Department of Food Science and Nutrition, Zhejiang Key Laboratory for Agro-food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, National Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Postharvest Handling of Ministry of Agriculture, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China.
| | - Qiang Chu
- Tea Research Institute, College of Agriculture & Biotechnology, Zhejiang University, Hangzhou, 310058, China.
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Huang Y, Liu Y, Huang J, Gao L, Wu Z, Wang L, Fan L. Let‑7b‑5p promotes cell apoptosis in Parkinson's disease by targeting HMGA2. Mol Med Rep 2021; 24:820. [PMID: 34558637 PMCID: PMC8485123 DOI: 10.3892/mmr.2021.12461] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/19/2021] [Indexed: 12/14/2022] Open
Abstract
Parkinson's disease (PD), a common multifactorial neurodegenerative disease, is characterized by irreversible loss of dopaminergic neurons in the substantia nigra. In-depth study of the pathogenesis of PD is of great importance. High-mobility group AT-hook 2 (HMGA2) has been proposed to be implicated with neuronal differentiation and impairment of cognitive function. However, whether HMGA2 plays a role in PD is rarely explored. In the present study, N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated PD mice models and N-methyl-4- phenylpyridinium (MPP+)-treated SH-SY5Y cell models were established. Reverse transcription-quantitative PCR showed that HMGA2 displayed low levels in brain tissues of MPTP-treated mice and MPP+-treated SH-SY5Y cells. Moreover, HMGA2 overexpression suppressed SH-SY5Y cell apoptosis. Additionally, let-7b-5p bound with HMGA2 3′ untranslated region (UTR), and its expression was negatively correlated with HMGA2 level. Moreover, let-7b-5p presented high levels in brain tissues of PD mice and MPP+-treated SH-SY5Y cells, and knockdown of let-7b-5p inhibited SH-SY5Y cell apoptosis. Rescue assays illustrated that HMGA2 neutralized the promotive effects of let-7b-5p mimics on SH-SY5Y cell apoptosis. In conclusion, the present study demonstrated that let-7b-5p contributes to cell apoptosis in PD by targeting HMGA2, which offers a potential theoretical basis for the study of effective therapy in PD.
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Affiliation(s)
- Yujing Huang
- Department of Neurology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Ying Liu
- Department of Neurology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Jing Huang
- Department of Neurology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Lu Gao
- Department of Neurology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Zhenggang Wu
- Department of Neurology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Lu Wang
- Department of Neurology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Lin Fan
- Department of Neurology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
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19
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Wang Y, Chen J, Chen W, Liu L, Dong M, Ji J, Hu D, Zhang N. LINC00987 Ameliorates COPD by Regulating LPS-Induced Cell Apoptosis, Oxidative Stress, Inflammation and Autophagy Through Let-7b-5p/SIRT1 Axis. Int J Chron Obstruct Pulmon Dis 2020; 15:3213-3225. [PMID: 33311978 PMCID: PMC7726835 DOI: 10.2147/copd.s276429] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 11/06/2020] [Indexed: 12/12/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is the third cause of disease-related death and brings a heavy burden to human health. Long non-coding RNA (lncRNA) was revealed to participate in COPD pathogenesis. This study aims to establish the effects and regulatory mechanism of lncRNA long intergenic non-coding 00987 (LINC00987) in lipopolysaccharide (LPS)-induced apoptosis, oxidative stress, inflammation and autophagy in BEAS-2B cells. Methods The expression levels of LINC00987 and let-7b-5p were detected by real-time quantitativepolymerase chain reaction (RT-qPCR). The expression of apoptosis-associated proteins, oxidative stress (ROS)-related proteins, autophagy-related proteins and sirtuin1 (SIRT1) protein was determined by Western blot. Cell viability was illustrated by cell counting kit-8 (CCK-8) assay. Cell apoptosis was investigated by caspase3 activity and apoptosis analysis assays. ROS, inflammation and autophagy were demonstrated by detecting reactive ROS level and superoxide dismutase (SOD) activity, enzyme-linked immunosorbent assay (ELISA) and Western blot analysis, respectively. The binding sites between let-7b-5p and LINC00987 or SIRT1 were predicted by lncBase or miRWalk online database, and identified by dual-luciferase reporter assay. Results LINC00987 expression was strikingly downregulated and let-7b-5p expression was obviously upregulated in COPD tissues and LPS-induced BEAS-2B cells compared with control groups. LINC00987 overexpression promoted BEAS-2B cells against LPS-mediated viability, apoptosis, oxidative stress, inflammation and autophagy, whereas these effects were attenuated by let-7b-5p mimic or SIRT1 knockdown. Furthermore, LINC00987 sponged let-7b-5p and let-7b-5p bound to SIRT1. Conclusion LINC00987 ameliorated COPD through modulating LPS-induced cell apoptosis, oxidative stress, inflammation and autophagy via sponging let-7b-5p to associate with SIRT1. This finding will provide a theoretical basis for the research of LncRNA-mediated treatment in COPD.
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Affiliation(s)
- Yuanyuan Wang
- Graduate School, Anhui University of Chinese Medicine, Anhui, Hefei 230012, People's Republic of China
| | - Jingjing Chen
- Graduate School, Anhui University of Chinese Medicine, Anhui, Hefei 230012, People's Republic of China
| | - Wei Chen
- Department of Respiratory Medicine, The First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui, Hefei, 230031, People's Republic of China
| | - Ling Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui, Hefei, 230031, People's Republic of China
| | - Mei Dong
- Department of Respiratory Medicine, The First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui, Hefei, 230031, People's Republic of China
| | - Juan Ji
- Department of Respiratory Medicine, The First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui, Hefei, 230031, People's Republic of China
| | - Die Hu
- Department of Scientific Research, The First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui, Hefei 230031, People's Republic of China
| | - Nianzhi Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui, Hefei, 230031, People's Republic of China
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