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Shen R, Zhao W, Li X, Liu J, Yang A, Kou X. Emodin derivatives as promising multi-aspect intervention agents for amyloid aggregation: molecular docking/dynamics simulation, bioactivities evaluation, and cytoprotection. Mol Divers 2023:10.1007/s11030-023-10733-4. [PMID: 37737959 DOI: 10.1007/s11030-023-10733-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/15/2023] [Indexed: 09/23/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disease with complex pathogenesis. Despite the pathogenesis is unknown, the misfolding and accumulation of β-amyloid (Aβ) peptide play the important role in the occurrence and development of AD. Hence, multi-aspect intervention of the misfolded Aβ peptides aggregation is a promising therapy for AD. In previous work, we obtained the emodin derivatives (a-d) with multifunctional anti-AD activities, including metal ions chelation, cholinesterase inhibition, and hydroxyl/superoxide anion radical elimination. In this work, we predicted the interaction of emodin derivatives (a-d) with Aβ by combining molecular docking simulation and molecular dynamics simulation, and evaluated the ability to intervene with the self-, Cu2+- and AChE-induced Aβ aggregation via in vitro methods. The results indicated that a-d could act as the potent multi-aspect intervention agents for Aβ aggregation. In addition, a-d could effectively eliminate peroxyl radical, had virtually no neurotoxicity, and protect cells from oxidative and Aβ-induced damage. The prediction results of ADMET properties showed that a-d had suitable pharmacokinetic characteristics. It suggested that a-d could act as the promising multi-targeted directed ligands (MTDLs) for AD. These results may provide meaningful information for the development of the potential MTDLs for AD which are modified from natural-origin scaffolds.
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Affiliation(s)
- Rui Shen
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Wenshuang Zhao
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Xiangyu Li
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Juanjuan Liu
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Aihong Yang
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.
| | - Xiaodi Kou
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.
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Ogata K, Takagi S, Sugiyama N, Ishihama Y. Motif-Targeting Phosphoproteome Analysis of Cancer Cells for Profiling Kinase Inhibitors. Cancers (Basel) 2022; 15:cancers15010078. [PMID: 36612075 PMCID: PMC9817674 DOI: 10.3390/cancers15010078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/13/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022] Open
Abstract
We present a motif-targeting phosphoproteome analysis workflow utilizing in vitro kinase reaction to enrich a subset of peptides with specific primary sequence motifs. Phosphopeptides are enriched and dephosphorylated with alkaline phosphatase, followed by in vitro kinase reaction to phosphorylate substrate peptides with specific primary-sequence motifs. These phosphopeptides are enriched again, TMT-labeled, dephosphorylated to enhance MS-detectability, and analyzed by LC/MS/MS. We applied this approach to inhibitor-treated cancer cells, and successfully profiled the inhibitory spectra of multiple kinase inhibitors. We anticipate this approach will be applicable to target specific subsets of the phosphoproteome using the wide variety of available recombinant protein kinases.
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Peng F, Ren X, Du B, Yang Y. Pyrus ussuriensis Maxim 70% ethanol eluted fraction ameliorates inflammation and oxidative stress in LPS-induced inflammation in vitro and in vivo. Food Sci Nutr 2022; 11:458-469. [PMID: 36655082 PMCID: PMC9834841 DOI: 10.1002/fsn3.3077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 09/04/2022] [Accepted: 09/10/2022] [Indexed: 01/21/2023] Open
Abstract
Pyrus ussuriensis Maxim (PUM) is a popular fruit among consumers, and also used as medical diet for dissolving phlegm and arresting cough. The present study aims to investigate the potential protective effect of P. ussuriensis Maxim 70% ethanol eluted fraction (PUM70) on lipopolysaccharide (LPS)-induced alveolar macrophages and acute lung injury (ALI) in mice. A total of 18 polyphenol compounds were tentatively identified in PUM70 by mass spectrometry (MS) analysis. The results in vivo suggested that PUM70 treatment could effectively alleviate the histological changes, and significantly inhibit the activity of myeloperoxidase (MPO) and the expression of pro-inflammatory cytokines (tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6)). The cell test results show that PUM70 exerted its protective effect by suppressing the messenger RNA (mRNA) expression levels (inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) and decreasing nitric oxide (NO) and prostaglandin 2 (PGE2) contents. In addition, it also inhibited the overproduction of pro-inflammatory cytokines (TNF-α, IL-1β, and IL-6). Furthermore, PUM70 induced the production of heme oxygenase 1 (HO-1) protein and nuclear translocation of Nrf2 (nuclear factor erythroid 2-related factor 2), indicating that PUM70 could mitigate oxidative injury via the Nrf2/HO-1 pathway. Moreover, PUM70 inhibited LPS-induced inflammation by blocking the phosphorylation of mitogen-activated protein kinases (MAPKs). The above results indicate that PUM70 has protective effects on LPS-induced ALI, possibly be related to the inhibition of MAPK and Nrf2/HO-1 signaling pathways.
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Affiliation(s)
- Fei Peng
- Hebei Key Laboratory of Active Components and Functions in Natural ProductsHebei Normal University of Science and TechnologyQinhuangdaoChina,Collaborative Innovation Centre of Hebei Chestnut IndustryHebei Normal University of Science and TechnologyQinhuangdaoChina
| | - Xin Ren
- Hebei Key Laboratory of Active Components and Functions in Natural ProductsHebei Normal University of Science and TechnologyQinhuangdaoChina
| | - Bin Du
- Hebei Key Laboratory of Active Components and Functions in Natural ProductsHebei Normal University of Science and TechnologyQinhuangdaoChina,Collaborative Innovation Centre of Hebei Chestnut IndustryHebei Normal University of Science and TechnologyQinhuangdaoChina
| | - Yuedong Yang
- Hebei Key Laboratory of Active Components and Functions in Natural ProductsHebei Normal University of Science and TechnologyQinhuangdaoChina,Collaborative Innovation Centre of Hebei Chestnut IndustryHebei Normal University of Science and TechnologyQinhuangdaoChina
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Li HL, Zhang SY, Ren YS, Zhou JC, Zhou YX, Huang WZ, Piao XH, Yang ZY, Wang SM, Ge YW. Identification of ellagic acid and urolithins as natural inhibitors of Aβ 25-35-induced neurotoxicity and the mechanism predication using network pharmacology analysis and molecular docking. Front Nutr 2022; 9:966276. [PMID: 35983489 PMCID: PMC9378864 DOI: 10.3389/fnut.2022.966276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 07/15/2022] [Indexed: 11/13/2022] Open
Abstract
Ellagic acid (EA) is a dietary polyphenol that widely exists in grapes, strawberries, and walnuts. It usually exerts multiple biological activities together with its in vivo metabolites called urolithins. EA and urolithins had been proposed as natural agents for applying on the early intervention of Alzheimer’s disease (AD). However, the neuroprotective effects of those small molecules have not been confirmed, and the action mechanism is not clear. Deposition of beta-amyloid (Aβ) protein is well documented as being involved in the initiation and pathological process of AD. In the present study, we investigated the attenuating effects of EA and several urolithins on Aβ25–35-induced neuronal injury and its underlying molecular mechanism by constructing the in vitro AD cell model of PC12 cells and primary neurons. The results revealed that EA and urolithins especially the UM5 and UM6 exerted promising neuroprotective effects in improving the Aβ25–35-induced cell damage and lactate dehydrogenase (LDH) leakage, reducing reactive oxygen species (ROS) production, inhibiting neuronal apoptosis, and promoting neurite outgrowth. These results provide new insights into the development of UM5 and UM6 as anti-AD candidates. A network pharmacology analysis combining molecular docking strategy was further adopted to predict the signaling pathway involved in the anti-AD action of EA and urolithins, and the activation of PI3K-Akt, as well as the inhibition of MAPK was found to be involved.
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Affiliation(s)
- Hui-Lin Li
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, China.,Engineering and Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China.,Macau University of Science and Technology, Macau, Macau SAR, China
| | - Shi-Ying Zhang
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, China.,Engineering and Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ying-Shan Ren
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, China.,Engineering and Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jie-Chun Zhou
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, China.,Engineering and Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ying-Xin Zhou
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, China.,Engineering and Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
| | | | - Xiu-Hong Piao
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, China.,Engineering and Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China.,School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - Zhi-You Yang
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, China
| | - Shu-Mei Wang
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, China.,Engineering and Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yue-Wei Ge
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou, China.,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, China.,Engineering and Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
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Suo SK, Zheng SL, Chi CF, Luo HY, Wang B. Novel angiotensin-converting enzyme inhibitory peptides from tuna byproducts—milts: Preparation, characterization, molecular docking study, and antioxidant function on H2O2-damaged human umbilical vein endothelial cells. Front Nutr 2022; 9:957778. [PMID: 35938100 PMCID: PMC9355146 DOI: 10.3389/fnut.2022.957778] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 06/28/2022] [Indexed: 01/12/2023] Open
Abstract
To prepare peptides with high angiotensin-converting enzyme (ACE) inhibitory (ACEi) activity, Alcalase was screened from five proteases and employed to prepare protein hydrolysate (TMH) of skipjack tuna (Katsuwonus pelamis) milts. Subsequently, 10 novel ACEi peptides were isolated from the high-ACEi activity TMH and identified as Tyr-Asp-Asp (YDD), Thr-Arg-Glu (TRE), Arg-Asp-Tyr (RDY), Thr-Glu-Arg-Met (TERM), Asp-Arg-Arg-Tyr-Gly (DRRYG), Ile-Cys-Tyr (ICY), Leu-Ser-Phe-Arg (LSFR), Gly-Val-Arg-Phe (GVRF), Lys-Leu-Tyr-Ala-Leu-Phe (KLYALF), and Ile-Tyr-Ser-Pro (IYSP) with molecular weights of 411.35, 404.41, 452.45, 535.60, 665.69, 397.48, 521.61, 477.55, 753.91, and 478.53 Da, respectively. Among them, the IC50 values of ICY, LSFR, and IYSP on ACE were 0.48, 0.59, and 0.76 mg/mL, respectively. The significant ACEi activity of ICY, LSFR, and IYSP with affinities of −7.0, −8.5, and −8.3 kcal/mol mainly attributed to effectively combining with the ACEi active sites through hydrogen bonding, electrostatic force, and hydrophobic interaction. Moreover, ICY, LSFR, and IYSP could positively influence the production of nitric oxide (NO) and endothelin-1 (ET-1) secretion in human umbilical vein endothelial cells (HUVECs) and weaken the adverse impact of norepinephrine (NE) on the production of NO and ET-1. In addition, ICY, LSFR, and IYSP could provide significant protection to HUVECs against H2O2 damage by increasing antioxidase levels to decrease the contents of reactive oxide species and malondialdehyde. Therefore, the ACEi peptides of ICY, LSFR, and IYSP are beneficial functional molecules for healthy foods against hypertension and cardiovascular diseases.
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Affiliation(s)
- Shi-Kun Suo
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, College of Food Science and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Shuo-Lei Zheng
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, College of Food Science and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Chang-Feng Chi
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, China
| | - Hong-Yu Luo
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, College of Food Science and Pharmacy, Zhejiang Ocean University, Zhoushan, China
- *Correspondence: Hong-Yu Luo
| | - Bin Wang
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, College of Food Science and Pharmacy, Zhejiang Ocean University, Zhoushan, China
- Bin Wang ;
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