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Jiang C, Chen Z, Liao W, Zhang R, Chen G, Ma L, Yu H. The Medicinal Species of the Lycium Genus (Goji Berries) in East Asia: A Review of Its Effect on Cell Signal Transduction Pathways. PLANTS (BASEL, SWITZERLAND) 2024; 13:1531. [PMID: 38891336 PMCID: PMC11174690 DOI: 10.3390/plants13111531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 06/21/2024]
Abstract
Natural plants contain numerous chemical compounds that are beneficial to human health. The berries from the Lycium genus are widely consumed and are highly nutritious. Moreover, their chemical constituents have attracted attention for their health-promoting properties. In East Asia, there are three varieties of the Lycium genus (Lycium barbarum L., Lycium chinense Miller, and L. ruthenicum Murray) that possess medicinal value and are commonly used for treating chronic diseases and improving metabolic disorders. These varieties are locally referred to as "red Goji berries" or "black Goji berries" due to their distinct colors, and they differ in their chemical compositions, primarily in terms of carotenoid and anthocyanin content. The pharmacological functions of these berries include anti-aging, antioxidant, anti-inflammatory, and anti-exercise fatigue effects. This review aims to analyze previous and recent studies on the active ingredients and pharmacological activities of these Lycium varieties, elucidating their signaling pathways and assessing their impact on the gut microbiota. Furthermore, the potential prospects for using these active ingredients in the treatment of COVID-19 are evaluated. This review explores the potential targets of these Lycium varieties in the treatment of relevant diseases, highlighting their potential value in drug development.
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Affiliation(s)
| | | | | | | | | | - Lijuan Ma
- Dr. Neher’s Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau 999078, China; (C.J.); (Z.C.); (W.L.); (R.Z.); (G.C.)
| | - Haijie Yu
- Dr. Neher’s Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau 999078, China; (C.J.); (Z.C.); (W.L.); (R.Z.); (G.C.)
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2
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Yang Y, Yu L, Zhu T, Xu S, He J, Mao N, Liu Z, Wang D. Neuroprotective effects of Lycium barbarum polysaccharide on light-induced oxidative stress and mitochondrial damage via the Nrf2/HO-1 pathway in mouse hippocampal neurons. Int J Biol Macromol 2023; 251:126315. [PMID: 37582438 DOI: 10.1016/j.ijbiomac.2023.126315] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/31/2023] [Accepted: 08/11/2023] [Indexed: 08/17/2023]
Abstract
Light at night (LAN) induced cognitive impairment associated with oxidative stress in mice has been reported. Lycium barbarum polysaccharide (LBP) exhibits anti-tumor, anti-oxidant and neuroprotective effects, yet the neuroprotective effect on light-induced neuron damage still unclear. Here, mice exposed to LAN displayed cognitive impairment and depressive like behavior, which was reversed by LBP treatment. Meanwhile, LBP alleviated light-induced higher apoptosis and mitochondrial damage in HT-22 cells. Also, LBP prevented the decreased of mitochondrial membrane permeabilization (MMP) level in light-treated cells. Additionally, LBP demonstrated its antioxidant potential by reducing ROS production and malondialdehyde (MDA) level, while simultaneously enhancing the levels of superoxide dismutase (SOD) and glutathione peroxidases (GSH-Px) in both light-treated mice and HT-22 cells. Furthermore, the mRNA and protein expression of Nrf2 (NF-E2-related factor 2), heme oxygenease-1 (HO-1), and NAD(P)H quinone oxidoreductase (NQO1) were decreased in both light-treated mice and cells. Additionally, LBP treatment reversed light-induced the inhibition of Nrf2/HO-1 signaling pathway in both mice and cells. Moreover, Nrf2 antagonist ML385 significantly eliminated the neuroprotection of LBP on cell apoptosis, oxidative stress and mitochondrial damage in light-treated cells. These results indicate that LBP can rescue light-induced neurotoxicity in mice and HT-22 cells by activating the Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Yang Yang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Lin Yu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Tianyu Zhu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Shuwen Xu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jin He
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Ningning Mao
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhenguang Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Deyun Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health & Food Safety, Institute of Immunology, Nanjing Agricultural University, Nanjing 210095, PR China.
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Dinç E, Üçer A, Ünal N, Üstündağ Ö. A New Ultra-Performance Liquid Chromatographic Method for the Quantification of Vitamin C in Fresh and Dried Goji Berries (Lycium barbarum L.) Cultivated in Turkey. J AOAC Int 2023; 106:429-435. [PMID: 36303317 DOI: 10.1093/jaoacint/qsac131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 10/05/2022] [Accepted: 10/16/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND The potential background of the study is related to comprehensive detection of the content of vitamin C with an actual chromatographic method. OBJECTIVE Vitamin C is of vital importance in terms of human life and health due to its polyfunctional activity such as antioxidant activity and antiviral effect with other biological functions. In this regard, it may be necessary to update analytical methods or develop up-to-date analytical methods to accurately estimate the amount of vitamin C in natural samples. In this study, a new ultra-performance liquid chromatography with photodiode array detection (UPLC-PDA) method has been developed for the determination of vitamin C content in fresh and dried goji berries (Lycium barbarum L.), which are cultivated in Turkey. METHOD The chromatographic elution of vitamin C in natural fruit samples was achieved on an ACQUITY UPLC BEH C18 (1.7 µm, 2.1 mm × 100 mm) column using methanol and 0.1 M H3PO4 pH 2.15 (20:80, v/v), which are mobile phase. UPLC determination was done at the 242.8 nm. Flow rate was 0.20 mL/min at a column temperature of 30°C. Linearity range of the calibration graph was found to be at 5-30 µg/mL. The validity of the newly developed UPLC method was tested by analyzing individual test samples and added samples. RESULTS Applicability of the validated UPLC method was verified by the quantitative analysis of vitamin C content in both fresh and dried goji berries. CONCLUSIONS We believe that the newly developed and validated UPLC method would be a useful and promising approach for simple quantitative analysis of goji berry samples for vitamin C. HIGHLIGHTS In previous studies, no UPLC-PDA method was reported for the analysis of vitamin C in goji berries. The method provided a good repeatability for the analysis of real samples.
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Affiliation(s)
- Erdal Dinç
- Ankara University, Department of Analytical Chemistry, Faculty of Pharmacy, 06560 Yenimahalle, Ankara, Turkey
| | - Asiye Üçer
- Ankara University, Department of Analytical Chemistry, Faculty of Pharmacy, 06560 Yenimahalle, Ankara, Turkey.,Ankara Yıldırım Beyazıt University, Department of Analytical Chemistry, Faculty of Pharmacy, 06010 Etlik, Keçiören, Ankara, Turkey
| | - Nazangül Ünal
- Ankara University, Department of Analytical Chemistry, Faculty of Pharmacy, 06560 Yenimahalle, Ankara, Turkey.,Uşak University, Department of Pharmacy Services, Eşme Vocational School, 64600 Uşak, Turkey
| | - Özgür Üstündağ
- Ankara University, Department of Analytical Chemistry, Faculty of Pharmacy, 06560 Yenimahalle, Ankara, Turkey
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Lycium barbarum Polysaccharides Regulating miR-181/Bcl-2 Decreased Autophagy of Retinal Pigment Epithelium with Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:9554457. [PMID: 36644575 PMCID: PMC9836813 DOI: 10.1155/2023/9554457] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 12/17/2022] [Accepted: 12/21/2022] [Indexed: 01/07/2023]
Abstract
Disturbed structure and dysfunction of the retinal pigment epithelium (RPE) lead to degenerative diseases of the retina. Excessive accumulation of reactive oxygen species (ROS) in the RPE is thought to play an important role in RPE dysfunction and degeneration. Autophagy is a generally low-activity degradation process of cellular components that increases significantly when high levels of oxidative stress are present. Agents with antioxidant properties may decrease autophagy and provide protection against RPE dysfunction and damage caused by ROS. Lycium barbarum polysaccharide (LBP) has been widely studied as an antioxidant and cell-protective agent. Therefore, we designed this study to investigate the effects of LBP, which inhibits miR-181, on autophagy in retinal pigment epithelium (RPE) with oxidative stress in vitro and in vivo. In the current study, we found that the highly expressed miR-181 downregulated the expression of Bcl-2 in hydrogen peroxide- (H2O2-) induced ARPE-19 cells, resulting in an increase in ROS, apoptosis, and autophagy flux. LBP inhibited the expression of miR-181, decreased the levels of ROS, apoptosis, and autophagy flux, and increased cell viability in H2O2-induced ARPE-19 cells, suggesting that LBP provides protection against oxidative damage in ARPE-19 cells. We also found that LBP decreased RPE atrophy and autophagy flux in rd10 mice. Taken together, the results showed that LBP has a protective effect for RPE under oxidative stress by inhibiting miR-181 and affecting the Bcl-2/Beclin1 autophagy signaling pathway.
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Effects of Lycium barbarum L. Polysaccharides on Vascular Retinopathy: An Insight Review. Molecules 2022; 27:molecules27175628. [PMID: 36080395 PMCID: PMC9457721 DOI: 10.3390/molecules27175628] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/23/2022] [Accepted: 08/25/2022] [Indexed: 11/18/2022] Open
Abstract
Vascular retinopathy is a pathological change in the retina caused by ocular or systemic vascular diseases that can lead to blurred vision and the risk of blindness. Lycium barbarum polysaccharides (LBPs) are extracted from the fruit of traditional Chinese medicine, L. barbarum. They have strong biological activities, including immune regulation, antioxidation, and neuroprotection, and have been shown to improve vision in numerous studies. At present, there is no systematic literature review of LBPs on vascular retinal prevention and treatment. We review the structural characterization and extraction methods of LBPs, focus on the mechanism and pharmacokinetics of LBPs in improving vascular retinopathy, and discuss the future clinical application and lack of work. LBPs are involved in the regulation of VEGF, Rho/ROCK, PI3K/Akt/mTOR, Nrf2/HO-1, AGEs/RAGE signaling pathways, which can alleviate the occurrence and development of vascular retinal diseases in an inflammatory response, oxidative stress, apoptosis, autophagy, and neuroprotection. LBPs are mainly absorbed by the small intestine and stomach and excreted through urine and feces. Their low bioavailability in vivo has led to the development of novel dosage forms, including multicompartment delivery systems and scaffolds. Data from the literature confirm the medicinal potential of LBPs as a new direction for the prevention and complementary treatment of vascular retinopathy.
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Qi Y, Duan G, Fan G, Peng N. Effect of Lycium barbarum polysaccharides on cell signal transduction pathways. Biomed Pharmacother 2022; 147:112620. [PMID: 35032768 DOI: 10.1016/j.biopha.2022.112620] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 12/11/2022] Open
Abstract
Lycium barbarum polysaccharide (LBP), is a major active ingredient Lycium barbarum (LB), which exhibits several beneficial effects through NF-κB, PI3K-Akt-mTOR, p38-MAPK, Wnt-β-catenin, PI3K-Akt-GSK-3β, and MyD88 signal pathway, including anti-oxidation, and anti-aging, hypolipidemic and hypoglycemic, radiation, anti-tumor, and neuroprotection. Today, many researching papers are published on the LBP in physiology and pathology; however, the review of the LBP taking part in the signal transduction pathway in physiology and pathology is rear searched. Therefore, this research topic is a collection of reviews and original research articles that focus on the methods of the LBP extraction and its effects on the signal transduction pathway. The aim of this study is to provide theoretical evidence for in-depth analysis of the mechanisms of LBP in clinical clinical research studies.
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Affiliation(s)
- Youchao Qi
- Qinghai University, Xining 810016, China; College of Agriculture and Animal husbandry, Qinghai University, Xining 810016, China; Qinghai Plateau Key Laboratory of Tree Genetics and Breeding, Xining, China
| | - Guozhen Duan
- Qinghai University, Xining 810016, China; Academy of Agriculture and Forestry Sciences, Qinghai University, Xining, China; Qinghai Plateau Key Laboratory of Tree Genetics and Breeding, Xining, China.
| | - Guanghui Fan
- Qinghai University, Xining 810016, China; Academy of Agriculture and Forestry Sciences, Qinghai University, Xining, China; Qinghai Plateau Key Laboratory of Tree Genetics and Breeding, Xining, China.
| | - Ning Peng
- Qinghai University, Xining 810016, China
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Sun Y, Ho CT, Zhang Y, Hong M, Zhang X. Plant polysaccharides utilized by gut microbiota: New players in ameliorating cognitive impairment. J Tradit Complement Med 2022; 13:128-134. [PMID: 36970456 PMCID: PMC10037067 DOI: 10.1016/j.jtcme.2022.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 10/10/2021] [Accepted: 01/07/2022] [Indexed: 10/19/2022] Open
Abstract
Considerable evidence indicates the important role of gut microbiota in human health. Through the interaction with the host and diet, it secretes a myriad of metabolites to modulate biological processes essential for health. Cognitive impairment is a common feature of psychiatric and neurological disorders, which may seriously damage the quality of patients' life. Studies have found that cognitive impairment has a close relationship with gut microbiota, and plant polysaccharides intervention to maintain intestinal micro-ecological balance has a great impact on ameliorating cognitive impairment. This review introduced the interaction between gut microbiota and plant polysaccharides, and focused on signaling pathogenesis of gut microbiota in cognitive impairment. The effect of plant polysaccharides intervention on regulation of gut microbiota was also discussed, so as to provide a promising strategy for ameliorating cognitive impairment.
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Wang F, Jiang Z, Lou B, Duan F, Qiu S, Cheng Z, Ma X, Yang Y, Lin X. αB-Crystallin Alleviates Endotoxin-Induced Retinal Inflammation and Inhibits Microglial Activation and Autophagy. Front Immunol 2021; 12:641999. [PMID: 33777038 PMCID: PMC7991093 DOI: 10.3389/fimmu.2021.641999] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/09/2021] [Indexed: 12/24/2022] Open
Abstract
αB-Crystallin, a member of the small heat shock protein (sHSP) family, plays an immunomodulatory and neuroprotective role by inhibiting microglial activation in several diseases. However, its effect on endotoxin-induced uveitis (EIU) is unclear. Autophagy may be associated with microglial activation, and αB-crystallin is involved in the regulation of autophagy in some cells. The role of αB-crystallin in microglial autophagy is unknown. This study aimed to explore the role of αB-crystallin on retinal microglial autophagy, microglial activation, and neuroinflammation in both cultured BV2 cells and the EIU mouse model. Our results show that αB-crystallin reduced the release of typical proinflammatory cytokines at both the mRNA and protein level, inhibited microglial activation in morphology, and suppressed the expression of autophagy-related molecules and the number of autophagolysosomes in vitro. In the EIU mouse model, αB-crystallin treatment alleviated the release of ocular inflammatory cytokines and the representative signs of inflammation, reduced the apoptosis of ganglion cells, and rescued retinal inflammatory structural and functional damage, as evaluated by optical coherence tomographic and electroretinography. Taken together, these results indicate that αB-crystallin inhibits the activation of microglia and supresses microglial autophagy, ultimately reducing endotoxin-induced neuroinflammation. In conclusion, αB-crystallin provides a novel and promising option for affecting microglial autophagy and alleviating symptoms of ocular inflammatory diseases.
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Affiliation(s)
- Fangyu Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Zhaoxin Jiang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Bingsheng Lou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Fang Duan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Suo Qiu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Zhixing Cheng
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xinqi Ma
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Yao Yang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Xiaofeng Lin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
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Fu YW, Peng YF, Huang XD, Yang Y, Huang L, Xi Y, Hu ZF, Lin S, So KF, Ren CR. Lycium barbarum polysaccharide-glycoprotein preventative treatment ameliorates aversive. Neural Regen Res 2021; 16:543-549. [PMID: 32985485 PMCID: PMC7996006 DOI: 10.4103/1673-5374.293156] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Previous studies have shown that Lycium barbarum polysaccharide, the main active component of Lycium barbarum, exhibits anti-inflammatory and antioxidant effects in treating neurological diseases. However, the therapeutic action of Lycium barbarum polysaccharide on depression has not been studied. In this investigation, we established mouse models of depression using aversive stimuli including exposure to fox urine, air puff and foot shock and physical restraint. Concurrently, we administered 5 mg/kg per day Lycium barbarum polysaccharide-glycoprotein to each mouse intragastrically for the 28 days. Our results showed that long-term exposure to aversive stimuli significantly enhanced depressive-like behavior evaluated by the sucrose preference test and the forced swimming test and increased anxiety-like behaviors evaluated using the open field test. In addition, aversive stimuli-induced depressed mice exhibited aberrant neuronal activity in the lateral habenula. Importantly, concurrent Lycium barbarum polysaccharide-glycoprotein treatment significantly reduced these changes. These findings suggest that Lycium barbarum polysaccharide-glycoprotein is a potential preventative intervention for depression and may act by preventing aberrant neuronal activity and microglial activation in the lateral habenula. The study was approved by the Jinan University Institutional Animal Care and Use Committee (approval No. 20170301003) on March 1, 2017.
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Affiliation(s)
- Yun-Wei Fu
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | | | - Xiao-Dan Huang
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Yan Yang
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Lu Huang
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Yue Xi
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Zheng-Fang Hu
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province, China
| | - Song Lin
- Department of Physiology, School of Medicine, Jinan University, Guangzhou, Guangdong Province, China
| | - Kwok-Fai So
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province; Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, Guangdong Province; Center for Brain Science and Brain-Inspired Intelligence, Guangdong-Hong Kong-Macao Greater Bay Area, Guangzhou, Guangdong Province; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province; Department of Ophthalmology and State Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Chao-Ran Ren
- Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, Guangdong Province; Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, Guangdong Province; Center for Brain Science and Brain-Inspired Intelligence, Guangdong-Hong Kong-Macao Greater Bay Area, Guangzhou, Guangdong Province; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
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10
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Yuan FY, Zhang MX, Shi YH, Li MH, Ou JY, Bai WF, Zhang MS. Bone marrow stromal cells-derived exosomes target DAB2IP to induce microglial cell autophagy, a new strategy for neural stem cell transplantation in brain injury. Exp Ther Med 2020; 20:2752-2764. [PMID: 32765770 PMCID: PMC7401953 DOI: 10.3892/etm.2020.9008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 05/13/2020] [Indexed: 02/06/2023] Open
Abstract
Bone marrow stromal cells (MSCs) are a useful source of stem cells for the treatment of various brain injury diseases due to their abundant supply and fewer ethical problems compared with transplant treatment. However, the clinical application of MSCs is limited due to allograft rejection and immunosuppression in the process of MSCs transplantation. According to previous studies, microglial cell autophagy occurs following co-culture with MSCs. In the present study, exosomes were obtained from MSCs and subsequently characterized using transmission electron microscopy, atomic force microscopy and dynamic light scattering particle size analysis. The type of microRNAs (miRs) found in the exosomes was then analyzed via gene chip. The results demonstrated that microglial cell autophagy could be induced by exosomes. This mechanism was therefore investigated further via reverse transcription-quantitative PCR, western blotting and luciferase assays. These results demonstrated that exosomes from MSCs could induce microglial cell autophagy through the miR-32-mediated regulation of disabled homolog 2-interacting protein, thus providing a theoretical basis for the clinical application of miRs in MSCs.
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Affiliation(s)
- Feng-Ying Yuan
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong 510632, P.R. China.,Department of Rehabilitation Medicine The First Affiliated Hospital, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510600, P.R. China
| | - Ming-Xing Zhang
- Department of Rehabilitation Medicine The First Affiliated Hospital, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510600, P.R. China
| | - Yi-Hua Shi
- Department of Rehabilitation Medicine The First Affiliated Hospital, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510600, P.R. China
| | - Mei-Hui Li
- Department of Rehabilitation Medicine, Guangdong Provincial People's Hospital, Guangzhou, Guangdong 510120, P.R. China
| | - Jia-Yuan Ou
- Department of Rehabilitation Medicine, Guangdong Provincial People's Hospital, Guangzhou, Guangdong 510120, P.R. China
| | - Wen-Fang Bai
- Department of Rehabilitation Medicine, Guangdong Provincial People's Hospital, Guangzhou, Guangdong 510120, P.R. China.,Academy of Medical Sciences, Guangdong Provincial Institute of Geriatrics, Guangzhou, Guangdong 510080, P.R. China
| | - Ming-Sheng Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong 510632, P.R. China.,Department of Rehabilitation Medicine, Guangdong Provincial People's Hospital, Guangzhou, Guangdong 510120, P.R. China
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11
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Kim HJ, Lee J, Kim SC, Seo JY, Hong SB, Park YI. Immunostimulating activity of Lycium chinense Miller root extract through enhancing cytokine and chemokine production and phagocytic capacity of macrophages. J Food Biochem 2020; 44:e13215. [PMID: 32215941 DOI: 10.1111/jfbc.13215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 03/02/2020] [Accepted: 03/05/2020] [Indexed: 12/16/2022]
Abstract
Whereas the fruits and a small portion of root bark of Lycium trees are commonly marketed in Korea as traditional medicine or functional foods, majority of their whole roots have been largely discarded. To develop the whole root of these plants as more value-added materials, this study aimed to evaluate the potential immunostimulating activity of a water extract (GTR-101) from L. chinense Miller roots using macrophages. The GTR-101 (0-500 μg/ml) significantly, dose-dependently increased the secretion of pro-inflammatory cytokines (TNF-α and IL-6), chemokines (RANTES and MIP-1α), nitric oxide, and the expression of inducible nitric oxide synthase, and activated the Akt, NF-κB, and MAPKs (ERK and p38) signaling proteins. GTR-101 also significantly enhanced the phagocytic activity of RAW 264.7 cells and bone marrow-derived macrophages. These results suggest that GTR-101 stimulates the early innate immunity via inducing the pro-inflammatory cytokine and chemokine secretion and enhancing the phagocytic activity of macrophages. PRACTICAL APPLICATIONS: The GTR-101 prepared from L. chinense Miller roots may be useful for enhancing body's defense systems especially in the elderly and cancer patients with an impaired or reduced immune response and may thus be effectively used as a natural immunostimulating ingredient in health foods or complementary medicine.
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Affiliation(s)
- Hyeon Jeong Kim
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Jisun Lee
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Seong Cheol Kim
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Jeong Yeon Seo
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | | | - Yong Il Park
- Department of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
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12
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Sun X, Lv Y, Huang L, Gao H, Ren C, Li J, Bie M, Li W, Koike K, So KF, Xiao J. Pro-inflammatory cytokines serve as communicating molecules between the liver and brain for hepatic encephalopathy pathogenesis and Lycium barbarum polysaccharides protection. JOURNAL OF ETHNOPHARMACOLOGY 2020; 248:112357. [PMID: 31693919 DOI: 10.1016/j.jep.2019.112357] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 10/22/2019] [Accepted: 10/24/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Gogi berry is a traditional food supplement and medical herbal which has been widely used in Eastern Asian countries. Lycium barbarum polysaccharides (LBP) are the major active components of Gogi berry and have been proved to possess a lot of biological activities. AIM OF THE STUDY We aimed to delineate the protective effect and mechanism of LBP on hepatic encephalopathy (HE). MATERIALS AND METHODS We investigated the protective mechanism of LBP in a thioacetamide (TAA, intraperitoneally injected, 400 mg/kg) induced acute HE mice model. Key phenotypes of clinical HE were phenocopied in the mice model, including high mortality, severe hepatic histology injury, increased hepatic oxidative stress, apoptosis, enhanced circulating levels of pro-inflammatory cytokines and ammonia, suppressed tryptophan hydroxylase activity, and deficits in locomotor activity. RESULTS The pathological alterations were effectively ameliorated by the oral administration with LBP (5 mg/kg, oral gavage, everyday), which were mediated by regulating MAPK pathways in both the liver and brain. Knockout of pro-inflammatory cytokines TNF-α or IL-6 effectively ameliorated impaired mice locomotor activity and MAPK activation in the brain. In an in vitro TNF-α-, IL-6-, or ammonia-induced microglia damaged cell model, cell injuries were evidently protected by the co-administration with LBP (50 μg/ml). CONCLUSION LBP ameliorated the hepatic/brain injuries and impaired locomotor activities in a HE mice model. Pro-inflammatory cytokines may serve as communicating molecules linking the liver and brain for the HE pathogenesis, partly through MAPK regulation.
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Affiliation(s)
- Xiaoming Sun
- Center for Clinical Precision Medication, The First Affiliated Hospital, Guangdong Pharmaceutical University, Guangzhou, 510006, China; Clinical Pharmacy (School of Integrative Pharmacy, Institute of Integrative Pharmaceutical Research), Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Yi Lv
- Laboratory of Neuroendocrinology, Fujian Key Laboratory of Developmental and Neurobiology, College of Life Sciences, Fujian Normal University, Fuzhou, 350007, China
| | - Lu Huang
- Guangdong-HongKong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, 510632, China; Guangdong Key Laboratory of Brain Function and Diseases, Jinan University, Guangzhou, 510632, China
| | - Hao Gao
- College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - Chaoran Ren
- Guangdong-HongKong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, 510632, China; Guangdong Key Laboratory of Brain Function and Diseases, Jinan University, Guangzhou, 510632, China
| | - Jingjing Li
- Guangdong-HongKong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, 510632, China; Guangdong Key Laboratory of Brain Function and Diseases, Jinan University, Guangzhou, 510632, China
| | - Man Bie
- Guangdong-HongKong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, 510632, China; Guangdong Key Laboratory of Brain Function and Diseases, Jinan University, Guangzhou, 510632, China
| | - Wei Li
- Faculty of Pharmaceutical Sciences, Toho University, Chiba, Japan
| | - Kazuo Koike
- Faculty of Pharmaceutical Sciences, Toho University, Chiba, Japan
| | - Kwok-Fai So
- Laboratory of Neuroendocrinology, Fujian Key Laboratory of Developmental and Neurobiology, College of Life Sciences, Fujian Normal University, Fuzhou, 350007, China; Guangdong-HongKong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, 510632, China; Guangdong Key Laboratory of Brain Function and Diseases, Jinan University, Guangzhou, 510632, China; Department of Ophthalmology, The University of Hong Kong, Pokfulam, Hong Kong, China.
| | - Jia Xiao
- Laboratory of Neuroendocrinology, Fujian Key Laboratory of Developmental and Neurobiology, College of Life Sciences, Fujian Normal University, Fuzhou, 350007, China; School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China; Institute of Clinical Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, China.
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Hanyu X, Lanyue L, Miao D, Wentao F, Cangran C, Hui S. Effect of Ganoderma applanatum polysaccharides on MAPK/ERK pathway affecting autophagy in breast cancer MCF-7 cells. Int J Biol Macromol 2020; 146:353-362. [PMID: 31911173 DOI: 10.1016/j.ijbiomac.2020.01.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 12/21/2019] [Accepted: 01/02/2020] [Indexed: 12/14/2022]
Abstract
Fungal polysaccharides have become hotspots in the field of health foods due to their antitumor activity in recent years. In this experiment, antitumor effect of the medicinal fungus Ganoderma applanatum polysaccharide (GAP) was investigated in human breast cancer MCF-7 cells, as well as the molecular mechanism of its effect on autophagy. Results showed that GAP contains three polysaccharides with molecular weights of 6.36 × 105 Da, 4.25 × 105 Da, and 2.53 × 105 Da and which composed of rhamnose, glucose, arabinose, fucose in the molar ratio of 1:22:16.1:3.2. GAP inhibited the proliferation and migration of MCF-7 cells in a time-dose-dependent manner, the maximum inhibition rate reached 50.2% at 500 μg/mL in 48 h. Flow cytometry analysis showed that GAP could induce apoptosis, treatment of cells with GAP could result in up-regulation of gene and protein levels of autophagy-associated markers LC3 and Beclin-1; addition of autocrine late inhibitor CQ significantly raised the protein expression level of LC3II. The mitogen-activated protein kinases (MAPK) signaling pathway was not only related to the apoptotic pathway but also to the autophagy pathway; Western blot analysis showed that MAPK signaling pathway is involved in GAP-induced autophagy in MCF-7 cells. Detection of the relevant signaling pathway protein showed that the expression of p-ERK1/2 protein was down-regulated, however the expression of p-p38 and p-JNK protein was up-regulated. These results indicate that GAP could induce early autophagy in MCF-7 cells via the MAPK/ERK pathway. In conclusion, GAP showed strong antitumor activity by inducing apoptosis and autophagy through MAPK signaling pathway in MCF-7 cells, suggesting the molecular mechanism of fungal polysaccharide on its antitumor activity.
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Affiliation(s)
- Xu Hanyu
- School of Life Science, Jilin Agricultural University, Changchun, Jilin, China
| | - Liu Lanyue
- School of Life Science, Jilin Agricultural University, Changchun, Jilin, China
| | - Ding Miao
- School of Life Science, Jilin Agricultural University, Changchun, Jilin, China
| | - Fan Wentao
- School of Life Science, Jilin Agricultural University, Changchun, Jilin, China
| | - Chen Cangran
- School of Life Science, Jilin Agricultural University, Changchun, Jilin, China
| | - Song Hui
- School of Life Science, Jilin Agricultural University, Changchun, Jilin, China; Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Changchun, China.
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The Anticancer Activity of Lycium barbarum Polysaccharide by Inhibiting Autophagy in Human Skin Squamous Cell Carcinoma Cells In Vitro and In Vivo. INT J POLYM SCI 2019. [DOI: 10.1155/2019/5065920] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Objective. This study is aimed at investigating the effects of Lycium barbarum polysaccharide (LBP) on the proliferation and apoptosis of human cutaneous squamous cell carcinoma A431 cells in vitro and in vivo via its regulation on autophagy. Methods. In vitro experiment: A431 cells were treated with different concentrations of LBP, and cell viability was measured by the CCK8 method. Flow cytometry was used to detect the cell apoptosis rate. The expression of Ki67, PCNA, cl-caspase-3, Bcl-2, and LC3II and the phosphorylation status of JNK and ERK1/2, as well as the effect of SP600125 cotreatment on the expression of autophagy and apoptosis-associated proteins, were determined via Western blot. In vivo experiment: a transplanted tumor model was established by subcutaneous injection of A431 cells to the nude mice. 50 mg/kg LBP was injected into the mice intraperitoneally; the survival rate of mice, volume, and weight of tumor were determined on the 30th day. The expression of Ki67 and MMP-2 proteins was measured by immunohistochemistry. Results. LBP at concentrations of 400 μg/ml and above was significantly cytotoxic to A431 cells, whereas, within the dose range of 50 μg/ml~200 μg/ml, LBP significantly inhibited the expression of Ki67 and PCNA proteins, promoted the expression of cl-caspase-3, inhibited the expression of Bcl-2 protein, downregulated the expression of autophagy marker LC3II, and reduced the phosphorylation of ERK1/2, whereas the level of JNK phosphorylation was upregulated. At the same time, the regulation of Beclin1, LC3II, Bcl-2, and cl-caspase-3 by LBP was effectively reversed by the cotreatment of SP600125. In addition, LBP increased the survival rate of transplanted nude mice, reduced tumor volume and weight, and downregulated the expression of Ki67 and MMP-2. Conclusion. LBP can induce apoptosis of A431 cells by inhibiting autophagy and can inhibit tumor growth in vivo.
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Extraction, Structural Characterization, and Biological Functions of Lycium Barbarum Polysaccharides: A Review. Biomolecules 2019; 9:biom9090389. [PMID: 31438522 PMCID: PMC6770593 DOI: 10.3390/biom9090389] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/18/2019] [Accepted: 08/19/2019] [Indexed: 12/16/2022] Open
Abstract
Lycium barbarum polysaccharides (LBPs), as bioactive compounds extracted from L. barbarum L. fruit, have been widely explored for their potential health properties. The extraction and structural characterization methods of LBPs were reviewed to accurately understand the extraction method and structural and biological functions of LBPs. An overview of the biological functions of LBPs, such as antioxidant function, antitumor activity, neuroprotective effects, immune regulating function, and other functions, were summarized. This review provides an overview of LBPs and a theoretical basis for further studying and extending the applications of LBPs in the fields of medicine and food.
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Li HY, Huang M, Luo QY, Hong X, Ramakrishna S, So KF. Lycium barbarum (Wolfberry) Increases Retinal Ganglion Cell Survival and Affects both Microglia/Macrophage Polarization and Autophagy after Rat Partial Optic Nerve Transection. Cell Transplant 2019; 28:607-618. [PMID: 30838886 PMCID: PMC7103598 DOI: 10.1177/0963689719835181] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The rat partial optic nerve transection (PONT) model has been used for studying secondary
degeneration of retinal ganglion cells (RGCs) in recent years. In this study, we carried
out PONT of the temporal side of rat optic nerves, whereas PONT was carried out of the
superior side in the previous publication. We found that this surgery is better and easier
than the previous method and can produce a repeatable and reliable model. We detected
significant changes in the polarization of microglia/macrophages and the level of
autophagy in optic nerves after PONT. We also used this model to detect the effects of the
polysaccharides extracted from Lycium barbarum (LBP) on the survival of
RGCs and the changes in the polarization of microglia/macrophages and the level of
autophagy after PONT. We find that LBP can delay secondary degeneration of RGCs after
temporal injury of optic nerves, promote the M2 polarization of microglia/macrophages, and
down-regulate the level of autophagy after PONT. In conclusion, we find that the
polarization of microglia/macrophages and the autophagy level change after PONT; LBP
treatment delays secondary degeneration of RGCs; and the polarization of
microglia/macrophages and the level of autophagy are also altered after LBP treatment.
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Affiliation(s)
- Hong-Ying Li
- 1 Department of Anatomy, Medical School, Jinan University, Guangzhou, China.,2 Collaborative Joint Laboratory, Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration, Jinan University, Guangzhou, China.,3 Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Mi Huang
- 2 Collaborative Joint Laboratory, Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration, Jinan University, Guangzhou, China.,3 Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Qiu-Yan Luo
- 1 Department of Anatomy, Medical School, Jinan University, Guangzhou, China
| | - Xi Hong
- 1 Department of Anatomy, Medical School, Jinan University, Guangzhou, China.,2 Collaborative Joint Laboratory, Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration, Jinan University, Guangzhou, China.,3 Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Seeram Ramakrishna
- 2 Collaborative Joint Laboratory, Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration, Jinan University, Guangzhou, China
| | - Kwok-Fai So
- 2 Collaborative Joint Laboratory, Guangdong-Hongkong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration, Jinan University, Guangzhou, China.,3 Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China.,4 Guangdong Key Laboratory of Brain Function and Diseases, Jinan University, Guangzhou, China.,5 State Key Laboratory of Brain and Cognitive Sciences and Department of Ophthalmology, The University of Hong Kong, Hong Kong, China
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Shi GJ, Zheng J, Han XX, Jiang YP, Li ZM, Wu J, Chang Q, Niu Y, Sun T, Li YX, Chen Z, Yu JQ. Lycium barbarum polysaccharide attenuates diabetic testicular dysfunction via inhibition of the PI3K/Akt pathway-mediated abnormal autophagy in male mice. Cell Tissue Res 2018; 374:653-666. [DOI: 10.1007/s00441-018-2891-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Accepted: 06/20/2018] [Indexed: 02/15/2023]
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18
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Reddy S, He L, Ramakrishana S. Miniaturized-electroneurostimulators and self-powered/rechargeable implanted devices for electrical-stimulation therapy. Biomed Signal Process Control 2018. [DOI: 10.1016/j.bspc.2017.11.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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19
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Manthey AL, Chiu K, So KF. Demystifying traditional Chinese medicines: Lycium barbarum as a model therapeutic. TRADITIONAL MEDICINE AND MODERN MEDICINE 2018. [DOI: 10.1142/s2575900018300011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The practice of Traditional Chinese Medicine (TCM) focuses on holistic treatment of the body. This often includes preparation and application of medicinal herbs, either alone or in combination with other supplements. Lycium barbarum (LB), for example, is a commonly used herbal supplement in many Asian countries, being most well-known for improving kidney, liver, and eye health. It is also one of the most widely scientifically researched TCMs and a large body of literature is available describing its effects on various tissues and organ systems. In this perspective, we briefly expand upon how LB can be used as a model TCM in the systematic study of other herbal medicines, highlighting two of the primary barriers to their use in modern medicine worldwide.
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Affiliation(s)
- Abby Leigh Manthey
- Department of Ophthalmology, The University of Hong Kong, Hong Kong SAR, P. R. China
| | - Kin Chiu
- Department of Ophthalmology, The University of Hong Kong, Hong Kong SAR, P. R. China
- State Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Hong Kong SAR, P. R. China
| | - Kwok-Fai So
- Department of Ophthalmology, The University of Hong Kong, Hong Kong SAR, P. R. China
- State Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Hong Kong SAR, P. R. China
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, P. R. China
- Guangdong Key Laboratory of Brain Function and Diseases, Jinan University, Guangzhou, P. R. China
- Ministry of Education Joint International Research, Laboratory of CNS Regeneration, Jinan University, Guangzhou, P. R. China
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Gao QH, Fu X, Zhang R, Wang Z, Guo M. Neuroprotective effects of plant polysaccharides: A review of the mechanisms. Int J Biol Macromol 2018; 106:749-754. [DOI: 10.1016/j.ijbiomac.2017.08.075] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 07/27/2017] [Indexed: 12/31/2022]
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21
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Jing L, Jia XW. Lycium barbarum polysaccharide arbitrates palmitate-induced apoptosis in MC3T3‑E1 cells through decreasing the activation of ERS‑mediated apoptosis pathway. Mol Med Rep 2017; 17:2415-2421. [PMID: 29207092 PMCID: PMC5783487 DOI: 10.3892/mmr.2017.8128] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 11/03/2017] [Indexed: 12/13/2022] Open
Abstract
Palmitate (PA) has been identified to induce cell apoptosis in osteoblasts. The c-Jun NH2-teminal kinase (JNK) signaling pathway and endoplasmic reticulum stress (ERS) were found to be important contributors. Therefore, natural or synthetic agents may antagonize PA-induced apoptosis in osteoblasts, and demonstrate the potential application to reverse osteoporosis. The present study demonstrated that the Lycium barbarum polysaccharide (LBP) is as a major active ingredient of Lycium barbarum and that it can reduce the fatty acid toxicity of PA. Furthermore, this study attempted to elucidate the underlying molecular mechanisms of LBP. Firstly, it was demonstrated via a Cell Counting Kit-8 assay, that LBP could significantly increase the viability of MC3T3-E1 cells in a dose-dependent manner. Flow cytometric analysis indicated that LBP inhibits PA-induced apoptosis in osteoblastic cells. Reverse transcription-quantitative polymerase chain reaction and western blotting results showed that the expression levels of glucose-regulated protein 78, C/EBP homologous protein and cysteinyl asparate specific proteinase-3/-9/-12, were increased in MC3T3-E1 cells following PA treatment. The treatment of the cells with PA resulted in an activation of the ERS and the JNK signaling pathway. These pathways were effectively suppressed by co-incubation with LBP. Taken together, PA may cause ERS, in cell apoptosis, and it may further activate the JNK signaling pathway. LBP reversed PA-induced apoptosis in MC3T3-E1 cells through inhibition of the activation of the ERS-mediated JNK signaling pathway.
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Affiliation(s)
- Lei Jing
- Department of Orthopaedics, Ningbo First Hospital, Ningbo, Zhejiang 315000, P.R. China
| | - Xue-Wen Jia
- Department of Orthopaedics, Ningbo First Hospital, Ningbo, Zhejiang 315000, P.R. China
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Cao S, Du J, Hei Q. Lycium barbarum polysaccharide protects against neurotoxicity via the Nrf2-HO-1 pathway. Exp Ther Med 2017; 14:4919-4927. [PMID: 29201196 PMCID: PMC5704330 DOI: 10.3892/etm.2017.5127] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 06/08/2017] [Indexed: 12/15/2022] Open
Abstract
The incidence of neurodegenerative diseases including Alzheimer's and Parkinson's disease has markedly increased over the past few decades. Oxidative stress is considered to be a common pathophysiological condition resulting in neurotoxicity. Lycium barbarum polysaccharide (LBP) is the major active component of Lycium barbarum L., which exhibit potent antioxidant activity. The current study investigated the neuroprotective effects of LBP in H2O2-treated PC12 cells in vitro and in CoCl2-treated rats in vivo. It was determined that LBP concentration-dependently reversed the H2O2-induced increase in reactive oxygen species (ROS) levels, decrease in cell viability, increase in TUNEL-stained cells, increase in caspase-3 and −9 activity and decrease in mitochondrial membrane potential, indicating the amelioration of mitochondrial apoptosis. Furthermore, LBP inhibited the H2O2-induced decrease in nuclear factor erythroid 2-related factor 2 (Nrf)2 and heme oxygenase (HO)-1 expression and binding of Nrf2 to the promoters of HO-1. Silencing of Nrf2 and inhibition of HO-1 by zinc protoporphyrin IX (ZnPP) reversed the protective effects of LBP against H2O2-resulted neurotoxicity in PC12 cells. In CoCl2-treated rats, it was demonstrated that LBP decreased brain tissue apoptosis, reduced the time spent by rats finding the platform site, decreased escape latencies and reduced the distance traveled to find the platform. In addition, LBP inhibited the CoCl2-induced decrease of Nrf2 and HO-1 expression. Administration of ZnPP also suppressed the protective effects of LBP against CoCl2-resulted neurotoxicity in rats. Thus, the current study indicated that LBP exhibits protective effects against neurotoxicity by upregulating Nrf2/HO-1 signaling. These data may increase understanding regarding the neuroprotective activities of LBP.
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Affiliation(s)
- Shumei Cao
- Department of Anesthesiology, Xi'an No. 1 Hospital, Xi'an, Shaanxi 710002, P.R. China
| | - Jianlong Du
- Department of Anesthesiology, No. 215 Hospital of Shaanxi Nuclear Industry, Xianyang, Shaanxi 712000, P.R. China
| | - Qiaohong Hei
- Department of Anesthesiology, Xi'an High-Tech Hospital, Xi'an, Shaanxi 710075, P.R. China
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Abstract
The Lycium genus is widely used as a traditional Chinese medicine and functional food. Many of the chemical constituents of the genus Lycium were reported previously. In this review, in addition to the polysaccharides, we have enumerated 355 chemical constituents and nutrients, including 22 glycerogalactolipids, 29 phenylpropanoids, 10 coumarins, 13 lignans, 32 flavonoids, 37 amides, 72 alkaloids, four anthraquinones, 32 organic acids, 39 terpenoids, 57 sterols, steroids, and their derivatives, five peptides and three other constituents. This comprehensive study could lay the foundation for further research on the Lycium genus.
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Ye J, Jiang Z, Chen X, Liu M, Li J, Liu N. The role of autophagy in pro-inflammatory responses of microglia activation via mitochondrial reactive oxygen species in vitro. J Neurochem 2017; 142:215-230. [PMID: 28407242 DOI: 10.1111/jnc.14042] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 03/26/2017] [Accepted: 03/31/2017] [Indexed: 12/11/2022]
Abstract
Microglia over-activation contributes to neurodegenerative processes by neurotoxin factors and pro-inflammatory molecules of pro-inflammatory processes. Mitochondrial reactive oxygen species (ROS) and autophagy pathway might be involved in microglial activation, but the underlying mechanism is unclear. Here, we regulated autophagy pathway of microglia in vitro by autophagy inhibition (3-methyladenine treatment, siRNA-Beclin 1 or siRNA-ATG5 transfection) or induction (rapamycin treatment) in murine microglial BV-2 cells or cultured primary mouse microglial cells. And we found that autophagy inhibition could sensitize mitochondrial profile and microglial activation of cultured microglial cells, demonstrated by significant production of mitochondrial ROS, loss of mitochondrial membrane potential, secretion of pro-inflammatory cytokines including interleukin 1β (IL-1β), interleukin 6 (IL-6), interleukin 12 (IL-12) and tumor necrosis factor α and marked activation of mitogen-activated proteinkinases (MAPKs) and nuclear factor κB (NF-κB). These effects could be blocked by specific inhibitors of MAPK and NF-κB or mitochondrial antioxidants, Mito-TEMPO. Meanwhile, induction of autophagy with rapamycin treatment could significantly suppress microglial inflammatory responses, mitochondrial ROS production, activation of MAPKs and NF-κB. Taken together, our in vitro results from primary cultured microglia and BV-2 cell lines indicated that autophagy inhibition might participate in brain macrophage or microglia over-activation and mitochondrial ROS generation might be involved in the regulatory microglial pro-inflammatory responses.
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Affiliation(s)
- Junli Ye
- Department of Pathophysiology, Medical College, Qingdao University, Qingdao, Shandong, China
| | - Zhongxin Jiang
- Department of Clinical Laboratory, the Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Xuehong Chen
- Department of Pharmacology, Medical College, Qingdao University, Qingdao, China
| | - Mengyang Liu
- Department of Clinical Laboratory, the Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Jing Li
- Department of Clinical Laboratory, the Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Na Liu
- Department of Clinical Laboratory, the Affiliated Hospital of Medical College Qingdao University, Qingdao, China
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Neuro-protective Mechanisms of Lycium barbarum. Neuromolecular Med 2016; 18:253-63. [PMID: 27033360 DOI: 10.1007/s12017-016-8393-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 03/21/2016] [Indexed: 02/07/2023]
Abstract
Neuronal diseases, including retinal disorders, stroke, Alzheimer's disease, Parkinson's disease and spinal cord injury, affect a large number of people worldwide and cause heavy social and economic burdens. Although many efforts have been made by scientists and clinicians to develop novel drug and healthcare strategies, few of them received satisfactory outcomes to date. Lycium barbarum is a traditional homology of medicine and food in Chinese medicine, with the capability to nourish the eyes, liver and kidneys. Recent studies have also explored its powerful neuro-protective effects on a number of neuronal diseases. In the current review, we collected key recent findings regarding the neuro-protective effects and mechanisms of L. barbarum derivatives, primarily its polysaccharide (LBP) , in some common diseases of the nervous system. A comprehensive comparison with currently available drugs has also been discussed. In general, LBP is a promising neuronal protector with potent ameliorative effects on key pathological events, such as oxidative stress, inflammation, apoptosis and cell death with minimal side effects.
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The role of autophagy in modulation of neuroinflammation in microglia. Neuroscience 2016; 319:155-67. [PMID: 26827945 DOI: 10.1016/j.neuroscience.2016.01.035] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 01/13/2016] [Accepted: 01/13/2016] [Indexed: 01/05/2023]
Abstract
Microglia have multiple functions in regulating homeostasis in the central nervous system (CNS), and microglial inflammation is thought to play a role in the etiology of the neurodegenerative diseases. When endogenous or exogenous stimuli trigger disorders in microenvironmental homeostasis in CNS, microglia critically determine the fate of other neural cells. Recently, it was reported that autophagy might influence inflammation and activation of microglia. Though the interaction between autophagy and macrophages has been reported and reviewed in length, the role of autophagy in microglia has yet to be reviewed. Herein, we will highlight recent advances on the emerging role of autophagy in microglia, focusing on the regulation of autophagy during microglial inflammation, and the possible mechanism involved.
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Isidoro C, Huang CC, Sheen LY. Report from the Second International Conference of Traditional and Complementary Medicine on Health 2015. J Tradit Complement Med 2016; 6:5-9. [PMID: 26870692 PMCID: PMC4738037 DOI: 10.1016/j.jtcme.2016.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The Second International Conference of Traditional and Complementary Medicine on Health was held from October 24th through 27th at the GIS National Taiwan University Convention Center in Taipei. Twenty-seven invited speakers, representative of fourteen Countries, delivered their lecture in front of an audience of more than two hundreds of attendees. In addition, a poster exhibition with seventy-two presenters completed the scientific sessions. The leitmotif of the Conference was to promote a common platform in which all medical knowledge is integrated to improve the health care system. Traditional medicine and complementary medicine are characterized by a holistic approach to prevent and cure diseases, making use of natural products and/or physical manipulations. In this context, the Conference emphasized the importance of the Quality Control and of standardized methods for the authentication, preparation and characterization of the herbal products and nutrient supplements, as well as the need for controlled clinical trials and for experimental studies to demonstrate the efficacy and to understand the underlying mechanisms of the preventive and curative treatments. In this report, we highlight the novel findings and the perspectives in Traditional and Complementary Medicine (TCM; 傳統暨互補醫學 chuán tǒng jì hù bǔ yī xué) that emerged during the conference.
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Affiliation(s)
- Ciro Isidoro
- Department of Health Sciences, Università del Piemonte Orientale, Via P. Solaroli 17, 28100 Novara, Italy
| | - Chia-Chi Huang
- Institute of Food Science and Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan; Center for Food and Biomolecules, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
| | - Lee-Yan Sheen
- Institute of Food Science and Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan; Center for Food and Biomolecules, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
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