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Vitorakis N, Piperi C. Pivotal role of AGE-RAGE axis in brain aging with current interventions. Ageing Res Rev 2024; 100:102429. [PMID: 39032613 DOI: 10.1016/j.arr.2024.102429] [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: 05/02/2024] [Revised: 07/10/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024]
Abstract
Brain aging is characterized by several structural, biochemical and molecular changes which can vary among different individuals and can be influenced by genetic, environmental and lifestyle factors. Accumulation of protein aggregates, altered neurotransmitter composition, low-grade chronic inflammation and prolonged oxidative stress have been shown to contribute to brain tissue damage. Among key metabolic byproducts, advanced glycation end products (AGEs), formed endogenously through non-enzymatic reactions or acquired directly from the diet or other exogenous sources, have been detected to accumulate in brain tissue, exerting detrimental effects on cellular structure and function, contributing to neurodegeneration and cognitive decline. Upon binding to signal transduction receptor RAGE, AGEs can initiate pro-inflammatory pathways, exacerbate oxidative stress and neuroinflammation, thus impairing neuronal function and cognition. AGE-RAGE signaling induces programmed cell death, disrupts the blood-brain barrier and promotes protein aggregation, further compromising brain health. In this review, we investigate the intricate relationship between the AGE-RAGE pathway and brain aging in order to detect affected molecules and potential targets for intervention. Reduction of AGE deposition in brain tissue either through novel pharmacological therapeutics, dietary modifications, and lifestyle changes, shows a great promise in mitigating cognitive decline associated with brain aging.
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Affiliation(s)
- Nikolaos Vitorakis
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 M. Asias Street, Athens 11527, Greece
| | - Christina Piperi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 M. Asias Street, Athens 11527, Greece.
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2
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Luo Y, Zhu J, Hu Z, Luo W, Du X, Hu H, Peng S. Progress in the Pathogenesis of Diabetic Encephalopathy: The Key Role of Neuroinflammation. Diabetes Metab Res Rev 2024; 40:e3841. [PMID: 39295168 DOI: 10.1002/dmrr.3841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 04/29/2024] [Accepted: 06/27/2024] [Indexed: 09/21/2024]
Abstract
Diabetic encephalopathy (DE) is a severe complication that occurs in the central nervous system (CNS) and leads to cognitive impairment. DE involves various pathophysiological processes, and its pathogenesis is still unclear. This review summarised current research on the pathogenesis of diabetic encephalopathy, which involves neuroinflammation, oxidative stress, iron homoeostasis, blood-brain barrier disruption, altered gut microbiota, insulin resistance, etc. Among these pathological mechanisms, neuroinflammation has been focused on. This paper summarises some of the molecular mechanisms involved in neuroinflammation, including the Mammalian Target of Rapamycin (mTOR), Lipocalin-2 (LCN-2), Pyroptosis, Advanced Glycosylation End Products (AGEs), and some common pro-inflammatory factors. In addition, we discuss recent advances in the study of potential therapeutic targets for the treatment of DE against neuroinflammation. The current research on the pathogenesis of DE is progressing slowly, and more research is needed in the future. Further study of neuroinflammation as a mechanism is conducive to the discovery of more effective treatments for DE in the future.
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Affiliation(s)
- Yifan Luo
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Clinical Medicine, The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Jinxi Zhu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Clinical Medicine, The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Ziyan Hu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Clinical Medicine, The Second Clinical Medical College of Nanchang University, Nanchang, China
| | - Wei Luo
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaohong Du
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Haijun Hu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Shengliang Peng
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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Limthongkul J, Akkarasereenon K, Yodweerapong T, Songthammawat P, Tong-Ngam P, Tubsuwan A, Kunkaew N, Kanjanasirirat P, Khumpanied T, Wannalo W, Ubol S, Borwornpinyo S, Ploypradith P, Ponpuak M. Novel Potent Autophagy Inhibitor Ka-003 Inhibits Dengue Virus Replication. Viruses 2023; 15:2012. [PMID: 37896789 PMCID: PMC10611120 DOI: 10.3390/v15102012] [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: 07/22/2023] [Revised: 09/21/2023] [Accepted: 09/21/2023] [Indexed: 10/29/2023] Open
Abstract
Every year, dengue virus (DENV) affects millions of people. Currently, there are no approved drugs for the treatment of DENV infection. Autophagy is a conserved degradation process that was shown to be induced by DENV infection and required for optimal DENV replication. The modulation of autophagy is, therefore, considered an attractive target to treat DENV infection. This study carried out a high-content image screen analysis using Crispr-Cas9 GFP-LC3 knocked-in HeLa cells of a compound library synthesized from or inspired by natural products and their biocongener precursors to discover novel autophagy inhibitors. The screen identified Ka-003 as the most effective compound for decreasing the number of autophagic vacuoles inside cells upon autophagy induction. Ka-003 could inhibit autophagy in a dose-dependent manner at low micromolar concentrations. More importantly, Ka-003 demonstrated the concentration-dependent inhibition of DENV production in Crispr-Cas9 GFP-LC3 knocked-in THP-1 monocytes. The core structure of Ka-003, which is a methyl cyclohexene derivative, resembles those found in mulberry plants, and could be synthetically prepared in a bioinspired fashion. Taken together, data indicate that Ka-003 hampered autophagy and limited DENV replication. The low cytotoxicity of Ka-003 suggests its therapeutic potential, which warrants further studies for the lead optimization of the compound for dengue treatment.
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Affiliation(s)
- Jitra Limthongkul
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand (S.U.)
| | - Kornkamon Akkarasereenon
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand (P.P.)
| | - Tanpitcha Yodweerapong
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand (S.U.)
| | - Poramate Songthammawat
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand (P.P.)
| | - Pirut Tong-Ngam
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom 73170, Thailand (A.T.)
| | - Alisa Tubsuwan
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom 73170, Thailand (A.T.)
| | - Nawapol Kunkaew
- Mahidol Vivax Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Phongthon Kanjanasirirat
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Tanawadee Khumpanied
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Warawuth Wannalo
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Sukathida Ubol
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand (S.U.)
| | - Suparerk Borwornpinyo
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Poonsakdi Ploypradith
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand (P.P.)
| | - Marisa Ponpuak
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand (S.U.)
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Li Y, Liu S, Zhang D, Liu A, Zhu W, Zhang J, Yang B. Integrative Omic Analysis Reveals the Dynamic Change in Phenylpropanoid Metabolism in Morus alba under Different Stress. PLANTS (BASEL, SWITZERLAND) 2023; 12:3265. [PMID: 37765429 PMCID: PMC10537046 DOI: 10.3390/plants12183265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023]
Abstract
Morus alba is used as a traditional Chinese medicine due to its various biological activities. Phenylpropanoid metabolism is one of the most important pathways in Morus alba to produce secondary metabolites and response to stress. From the general phenylpropanoid pathway, there are two metabolic branches in M. alba, including flavonoid and lignin biosynthesis, which also play roles in response to stress. However, the dynamic changes between flavonoid and lignin biosynthesis under Botrytis cinerea infection and UV-B stress in M. alba were unclear. To explore the different regulation mode of flavonoid and lignin biosynthesis in M. alba leaves' response to biotic and abiotic stress, a combined proteomic and metabolomic study of M. alba leaves under UV-B stress and B. cinerea infection was performed. The results showed that most of the proteins involved in the lignin and flavonoid biosynthesis pathway were increased under either UV-B stress or B. cinerea infection in M. alba. This was also confirmed by enzyme assays and metabolomics analysis. Additionally, the abundance of proteins involved in the biosynthesis of jasmonic acid was increased after B. cinerea infection. This suggests that both flavonoid and lignin biosynthesis participate in the responses to abiotic and biotic stress in M. alba, but they might be regulated by different hormone signaling.
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Affiliation(s)
- Yaohan Li
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, China; (Y.L.); (S.L.); (A.L.)
| | - Shengzhi Liu
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, China; (Y.L.); (S.L.); (A.L.)
| | - Di Zhang
- Key Laboratory for Molecular Medicine and Chinese Medicine Preparations, Institute of Basic Medicine and Cancer, Chinese Academy of Sciences, Hangzhou 310022, China;
| | - Amin Liu
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, China; (Y.L.); (S.L.); (A.L.)
| | - Wei Zhu
- Key Laboratory for Molecular Medicine and Chinese Medicine Preparations, Institute of Basic Medicine and Cancer, Chinese Academy of Sciences, Hangzhou 310022, China;
| | - Jianbin Zhang
- Changshu Qiushi Technology Co., Ltd., Suzhou 215500, China;
| | - Bingxian Yang
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, China; (Y.L.); (S.L.); (A.L.)
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
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Bhattacharya R, Alam MR, Kamal MA, Seo KJ, Singh LR. AGE-RAGE axis culminates into multiple pathogenic processes: a central road to neurodegeneration. Front Mol Neurosci 2023; 16:1155175. [PMID: 37266370 PMCID: PMC10230046 DOI: 10.3389/fnmol.2023.1155175] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/27/2023] [Indexed: 06/03/2023] Open
Abstract
Advanced glycation end-products (AGEs; e.g., glyoxal, methylglyoxal or carboxymethyl-lysine) are heterogenous group of toxic compounds synthesized in the body through both exogenous and endogenous pathways. AGEs are known to covalently modify proteins bringing about loss of functional alteration in the proteins. AGEs also interact with their receptor, receptor for AGE (RAGE) and such interactions influence different biological processes including oxidative stress and apoptosis. Previously, AGE-RAGE axis has long been considered to be the maligning factor for various human diseases including, diabetes, obesity, cardiovascular, aging, etc. Recent developments have revealed the involvement of AGE-RAGE axis in different pathological consequences associated with the onset of neurodegeneration including, disruption of blood brain barrier, neuroinflammation, remodeling of extracellular matrix, dysregulation of polyol pathway and antioxidant enzymes, etc. In the present article, we attempted to describe a new avenue that AGE-RAGE axis culminates to different pathological consequences in brain and therefore, is a central instigating component to several neurodegenerative diseases (NGDs). We also invoke that specific inhibitors of TIR domains of TLR or RAGE receptors are crucial molecules for the therapeutic intervention of NGDs. Clinical perspectives have also been appropriately discussed.
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Affiliation(s)
- Reshmee Bhattacharya
- Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, India
| | - Mohammad Rizwan Alam
- Department of Hospital Pathology, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Mohammad Azhar Kamal
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-kharj, Saudi Arabia
| | - Kyung Jin Seo
- Department of Hospital Pathology, College of Medicine, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Seoul, Republic of Korea
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Li Y, Liu S, Shawky E, Tao M, Liu A, Sulaiman K, Tian J, Zhu W. SWATH-based quantitative proteomic analysis of Morus alba L. leaves after exposure to ultraviolet-B radiation and incubation in the dark. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 230:112443. [PMID: 35429828 DOI: 10.1016/j.jphotobiol.2022.112443] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 02/23/2022] [Accepted: 04/05/2022] [Indexed: 12/11/2022]
Abstract
Morus alba is a woody shrub of the family Moraceae and used as traditional Chinese medicine for a long history. Ultraviolet-B (UV-B) radiation, as a kind of abiotic stress factor, affected the growth and secondary metabolism in M. alba. Previous studies indicated that the contents of several secondary metabolites such as moracin N, chalcomaricin were significantly increased under high level UV-B radiation and dark incubation in M. alba leaves. To reveal the response mechanism under UV-B radiation and dark incubation in M. alba leaves, SWATH-based quantitative proteomic analysis was performed. Totally, 716 proteins were identified and quantified in the control, UVB, and UVD groups. Among them, 123 proteins and 96 proteins were identified as differentially abundant proteins in UVB group and UVD groups, respectively. Proteins related to photosynthesis, amino acid biosynthesis, and tocopherol biosynthesis were significantly altered in UVB group, while proteins related to the biosynthesis of phenolic compounds were significantly altered in UVD group. In addition, the abundances of proteins involved in the ubiquitin-proteasome system (UPS) were significantly increased in both UVB and UVD groups, indicating that UPS combined with secondary mechanism participated in the resistance to UV-B radiation and dark incubation. The obtained results provide novel insight into the effects of high level UV-B radiation on M. alba leaves and on the strategies used for maximizing the chemical constituents and the medicinal value of the M. alba leaves.
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Affiliation(s)
- Yaohan Li
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, China; The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310002, China
| | - Shengzhi Liu
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Eman Shawky
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Minglei Tao
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Amin Liu
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Kaisa Sulaiman
- The Xinjiang Uygur Autonomous Region National Institute of Traditional Chinese Medicine, Urumchi 830092, China
| | - Jingkui Tian
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310002, China.
| | - Wei Zhu
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310002, China.
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You S, Jang M, Kim GH. Mori Cortex radicis extract protected against diet-induced neuronal damage by suppressing the AGE-RAGE/MAPK signaling pathway in C. elegans and mouse model. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.104996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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