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Shehata AH, Anter AF, Ahmed ASF. Role of SIRT1 in sepsis-induced encephalopathy: Molecular targets for future therapies. Eur J Neurosci 2023; 58:4211-4235. [PMID: 37840012 DOI: 10.1111/ejn.16167] [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: 08/12/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/17/2023]
Abstract
Sepsis induces neuroinflammation, BBB disruption, cerebral hypoxia, neuronal mitochondrial dysfunction, and cell death causing sepsis-associated encephalopathy (SAE). These pathological consequences lead to short- and long-term neurobehavioural deficits. Till now there is no specific treatment that directly improves SAE and its associated behavioural impairments. In this review, we discuss the underlying mechanisms of sepsis-induced brain injury with a focus on the latest progress regarding neuroprotective effects of SIRT1 (silent mating type information regulation-2 homologue-1). SIRT1 is an NAD+ -dependent class III protein deacetylase. It is able to modulate multiple downstream signals (including NF-κB, HMGB, AMPK, PGC1α and FoxO), which are involved in the development of SAE by its deacetylation activity. There are multiple recent studies showing the neuroprotective effects of SIRT1 in neuroinflammation related diseases. The proposed neuroprotective action of SIRT1 is meant to bring a promising therapeutic strategy for managing SAE and ameliorating its related behavioural deficits.
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Affiliation(s)
- Alaa H Shehata
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Aliaa F Anter
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Al-Shaimaa F Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, Minia, Egypt
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2
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Wu S, Chen M, Liao X, Huang R, Wang J, Xie Y, Hu H, Zhang J, Wu Q, Ding Y. Protein hydrolysates from Pleurotus geesteranus obtained by simulated gastrointestinal digestion exhibit neuroprotective effects in H 2 O 2 -injured PC12 cells. J Food Biochem 2021; 46:e13879. [PMID: 34309037 DOI: 10.1111/jfbc.13879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 07/11/2021] [Accepted: 07/13/2021] [Indexed: 12/15/2022]
Abstract
Neurodegenerative diseases are considered to be among the diseases most threatening to human beings. Increasing evidence shows that antioxidant hydrolysates/peptides with neuroprotective effects may relieve neurodegenerative diseases. However, related research in mushrooms, one of the richest sources of antioxidant hydrolysates/peptides, is in its infancy. Therefore, the in vitro neuroprotective effects of protein hydrolysates from Pleurotus geesteranus were researched in this study. Proteins were extracted from P. geesteranus and then hydrolyzed by simulated gastrointestinal digestion. The neuroprotective effects of the protein hydrolysates were evaluated by H2 O2 -injured PC12 cells. The hydrolysates showed a superior antioxidative ability and had a higher abundance of hydrophobic amino acids (e.g., leucine, alanine, and phenylalanine). Neither cytotoxicity nor the increase of ROS in PC12 cells was observed under treatment with the hydrolysates. However, pre-treatment with the hydrolysates in PC12 cells, which were then injured by H2 O2 , markedly attenuated ROS generation and enhanced the activities and mRNA expression of the endogenous antioxidant enzymes (catalase (CAT), glutathione peroxidase (GPx), and superoxide dismutase (SOD)), leading to a 26.68% increase in cell viability. The hydrolysates exhibited strong neuroprotective activity in H2 O2 -injured PC12 cells, possibly by reducing ROS generation and enhancing the activity of the antioxidant enzymatic system. PRACTICAL APPLICATIONS: Antioxidant hydrolysates with neuroprotection were obtained from Pleurotus geesteranus proteins by simulating gastrointestinal digestion, which exhibited an excellent pre-protective effect in oxidatively damaged PC12 cells. Further study showed that hydrolysates pre-protection may exert antioxidant activities not only as an exogenous antioxidant to scavenge ROS but also as a gene regulator to modulate the endogenous antioxidant enzymes gene expression. These results indicated that the potential of antioxidant peptides, derived from P. geesteranus through gastrointestinal digestion, could serve as a source of bioactive molecules in the prevention, relief or even treatment of neurodegenerative disorders.
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Affiliation(s)
- Shujian Wu
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Mengfei Chen
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Xiyu Liao
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Rui Huang
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Juan Wang
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yizhen Xie
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Huiping Hu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Jumei Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qingping Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Yu Ding
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science & Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
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Ruankham W, Suwanjang W, Wongchitrat P, Prachayasittikul V, Prachayasittikul S, Phopin K. Sesamin and sesamol attenuate H 2O 2-induced oxidative stress on human neuronal cells via the SIRT1-SIRT3-FOXO3a signaling pathway. Nutr Neurosci 2021; 24:90-101. [PMID: 30929586 DOI: 10.1080/1028415x.2019.1596613] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background: An imbalance of free radicals and antioxidant defense systems in physiological processes can result in protein/DNA damage, inflammation, and cellular apoptosis leading to neurodegenerative disorders such as Alzheimer's disease (AD), Parkinson's disease (PD), and Huntington's disease (HD). Sesamin and sesamol, compounds derived from sesame seeds and oil, have been reported to exert various pharmacological effects, especially antioxidant activity. However, their molecular mechanisms against the oxidative stress induced by exogenous hydrogen peroxide (H2O2) remain to be elucidated. Aim: In this study, neuroprotective effects of sesamin and sesamol on H2O2-induced human neuroblastoma (SH-SY5Y) cell death and possible signaling pathways in the cells were explored. Methods: MTT assay and flow cytometry were conducted to determine cell viability and apoptotic profiles of neuronal cells treated with sesamin and sesamol. Carboxy-DCFDA assay was used to measure reactive oxygen species (ROS). Moreover, Western blot analysis was performed to investigate protein profiles associated with neuroprotection. Results: Pretreatment of the cells with 1 µM of sesamin and sesamol remarkably reduced the SH-SY5Y cell death induced by 400 µM H2O2 as well as the intracellular ROS production. Moreover, the molecular mechanisms underlying neuroprotection of the compounds were associated with activating SIRT1-SIRT3-FOXO3a expression, inhibiting BAX (proapoptotic protein), and upregulating BCL-2 (anti-apoptotic protein). Conclusion: The findings suggest that sesamin and sesamol are compounds that potentially protect neuronal cells against oxidative stress similar to that of the resveratrol, the reference compound. These antioxidants are thus of interest for further investigation in in vivo models of neuroprotection.
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Affiliation(s)
- Waralee Ruankham
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Wilasinee Suwanjang
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Virapong Prachayasittikul
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Supaluk Prachayasittikul
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Kamonrat Phopin
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
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Synthesis and neuroprotective effects of novel chalcone-triazole hybrids. Bioorg Chem 2020; 105:104384. [DOI: 10.1016/j.bioorg.2020.104384] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 09/16/2020] [Accepted: 10/14/2020] [Indexed: 02/08/2023]
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Gao H, Yuan X, Wang Z, Gao Q, Yang J. Profiles and neuroprotective effects of Lycium ruthenicum polyphenols against oxidative stress-induced cytotoxicity in PC12 cells. J Food Biochem 2019; 44:e13112. [PMID: 31800113 DOI: 10.1111/jfbc.13112] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/18/2019] [Accepted: 11/18/2019] [Indexed: 12/23/2022]
Abstract
Lycium ruthenicum Murr. (L. ruthenicum Murr.) is one of the perennial shrubs, which is commonly consumed as ethnic medicine and nutraceutical food. Herein, we detected eight polyphenols (including protocatechuic acid, catechin, p-coumaric acid, rutin, quercetin, syringic acid, caffeic acid, and ferulic acid) from Lycium ruthenicum. Furthermore, this study researched the potential neuroprotective mechanism of L. ruthenicum Murr. polyphenols (LRP) on PC12 cells under H2 O2 -induced oxidative stress. The results showed that pretreatment with LRP significantly mitigates H2 O2 -induced cytotoxicity in a dose-dependent manner for PC12 cells. LRP pretreatment also ameliorated the generation of intracellular reactive oxygen species and restored mitochondrial membrane potential as well as prevented the activation of caspase-3, caspase-8, and caspase-9 on PC12 cells under oxidative stress-induced apoptosis. This suggests that LRP will be a promising, safe candidate for delaying the onset and progress of neurodegenerative diseases associated with oxidative stress. PRACTICAL APPLICATIONS: Lycium ruthenicum Murr. belonging to the Solanaceae family, which is widespread throughout the Qinghai Tibet Plateau. It is one of the well-known perennial shrubs. Moreover, it is well known for containing a considerable amount of polyphenols. It has been reported that Lycium ruthenicum has anti-inflammatory, antihyperlipidemic, and antioxidative activities. Our results suggest that Lycium ruthenicum rich in polyphenols could contribute to delay in the onset and progress of neurodegenerative diseases associated with oxidative stress. Hence, LRP could be labeled as a neuroprotective food, ingredient or supplement in the formulation of food products for the population under oxidative stress induced related neurological changes.
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Affiliation(s)
- Hua Gao
- Department of Pharmacy, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Xiao Yuan
- School of Public Health and Management, Ningxia Medical University, Yinchuan, China
| | - Zhisheng Wang
- Laboratory Animal Center, Ningxia Medical University, Yinchuan, China
| | - Qinghan Gao
- School of Public Health and Management, Ningxia Medical University, Yinchuan, China
| | - Jianjun Yang
- School of Public Health and Management, Ningxia Medical University, Yinchuan, China
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Yu X, Chen L, Tang M, Yang Z, Fu A, Wang Z, Wang H. Revealing the Effects of Curcumin on SH-SY5Y Neuronal Cells: A Combined Study from Cellular Viability, Morphology, and Biomechanics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4273-4279. [PMID: 30929442 DOI: 10.1021/acs.jafc.9b00314] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this work, the effects of curcumin on the viability, morphology, and nanomechanics of SH-SY5Y neuronal cells were investigated using a conventional cell viability test kit (CCK-8) and sophisticated AFM imaging and force measurement techniques. CCK-8 tests show that SH-SY5Y neuronal cells have a dose-response to curcumin in terms of viability that is dependent on the exposure durations. When exposed to a maximum dosage of 32 μg/mL used in the present study for 4 h, 24 h, and 48 h, the cell viability dropped to 73.4 ± 4.5%, 9.1 ± 3.2%, and 2.5 ± 1.2% of the control, correspondingly. AFM studies show that curcumin can induce the disappearance of synapses of the cells and the change of biomechanics. After exposure for 24 h at the concentration of 16 μg/mL, the viscous deformation of the cells decreased from 2.15 ± 0.02 to 1.58 ± 0.03 (×10-15 N·m), the elastic deformation increased from 1.26 ± 0.04 to 1.72 ± 0.07 (×10-15 N·m), and adhesion work decreased from 0.56 ± 0.07 to 0.39 ± 0.04 (×10-16 N·m). The morphological and mechanical changes obtained using AFM can be interpreted from optically observed cellular structural changes. The present study provides insights into the effects of curcumin on neuronal cells from both biological and biophysical aspects, which can help more comprehensively understand the interactions between curcumin and SH-SY5Y cells. The demonstrated techniques can be potentially used to assess the efficacy of bioactive constituents on cells or help screen drugs.
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Affiliation(s)
- Xiaoting Yu
- School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China
- Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology & Center of Applied Physics, Chongqing Institute of Green and Intelligent Technology , Chinese Academy of Sciences , Chongqing 400714 , China
| | - Ligang Chen
- Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology & Center of Applied Physics, Chongqing Institute of Green and Intelligent Technology , Chinese Academy of Sciences , Chongqing 400714 , China
- School of Pharmaceutical Sciences , Southwest University , Chongqing 400716 , China
| | - Mingjie Tang
- Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology & Center of Applied Physics, Chongqing Institute of Green and Intelligent Technology , Chinese Academy of Sciences , Chongqing 400714 , China
| | - Zhongbo Yang
- Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology & Center of Applied Physics, Chongqing Institute of Green and Intelligent Technology , Chinese Academy of Sciences , Chongqing 400714 , China
| | - Ailing Fu
- School of Pharmaceutical Sciences , Southwest University , Chongqing 400716 , China
| | - Zhanzhong Wang
- School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China
| | - Huabin Wang
- School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China
- Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology & Center of Applied Physics, Chongqing Institute of Green and Intelligent Technology , Chinese Academy of Sciences , Chongqing 400714 , China
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