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Saha P, Ahmad F. Neuroprotective, Anti-Inflammatory and Antifibrillogenic Offerings by Emodin against Alzheimer's Dementia: A Systematic Review. ACS OMEGA 2024; 9:7296-7309. [PMID: 38405501 PMCID: PMC10882671 DOI: 10.1021/acsomega.3c07178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 02/27/2024]
Abstract
Background: Alzheimer's disease (AD) is among the major causes of dementia in the elderly and exerts tremendous clinical, psychological and socio-economic constraints. Currently, there are no effective disease-modifying/retarding anti-AD agents. Emodin is a bioactive phytochemical with potent multimodal anti-inflammatory, antioxidant, and antifibrillogenic properties. In particular, emodin may result in significant repression of the pathogenic mechanisms underlying AD. The purpose of this review is to accumulate and summarize all the primary research data evaluating the therapeutic actions of emodin in AD pathogenesis. Methodology: The search, selection, and retrieval of pertinent primary research articles were systematically performed using a methodically designed approach. A variety of keyword combinations were employed on online scholarly web-databases. Strict preset inclusion and exclusion criteria were used to select the retrieved studies. Data from the individual studies were summarized and compiled into different sections, based upon their findings. Results: Cellular and animal research indicates that emodin exerts robust multimodal neuroprotection in AD. While emodin effectively prevents tau and amyloid-beta (Aβ) oligomerization, it also mitigates their neurotoxicity by attenuating neuroinflammatory, oxidative, and bioenergetic defects. Evidences for emodin-mediated enhancements in memory, learning, and cognition were also found in the literature. Conclusion: Emodin is a potential anti-AD dietary supplement; however, further studies are warrantied to thoroughly understand its target players and mechanisms. Moreover, human clinical data on emodin-mediated amelioration of AD phenotype is largely lacking, and must be addressed in the future. Lastly, the safety of exogenously supplemented emodin must be thoroughly evaluated.
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Affiliation(s)
- Priyanka Saha
- Department of Biotechnology, School of Bio Sciences and Technology (SBST), Vellore Institute of Technology, Vellore 632014, India
| | - Faraz Ahmad
- Department of Biotechnology, School of Bio Sciences and Technology (SBST), Vellore Institute of Technology, Vellore 632014, India
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Lin SS, Chang TM, Wei AIC, Lee CW, Lin ZC, Chiang YC, Chi MC, Liu JF. Acetylshikonin induces necroptosis via the RIPK1/RIPK3-dependent pathway in lung cancer. Aging (Albany NY) 2023; 15:14900-14914. [PMID: 38126996 PMCID: PMC10781480 DOI: 10.18632/aging.205316] [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: 08/11/2023] [Accepted: 11/06/2023] [Indexed: 12/23/2023]
Abstract
Despite advances in therapeutic strategies, lung cancer remains the leading cause of cancer-related death worldwide. Acetylshikonin is a derivative of the traditional Chinese medicine Zicao and presents a variety of anticancer properties. However, the effects of acetylshikonin on lung cancer have not been fully understood yet. This study explored the mechanisms underlying acetylshikonin-induced cell death in non-small cell lung cancer (NSCLC). Treating NSCLC cells with acetylshikonin significantly reduced cell viability, as evidenced by chromatin condensation and the appearance of cell debris. Acetylshikonin has also been shown to increase cell membrane permeability and induce cell swelling, leading to an increase in the population of necrotic cells. When investigating the mechanisms underlying acetylshikonin-induced cell death, we discovered that acetylshikonin promoted oxidative stress, decreased mitochondrial membrane potential, and promoted G2/M phase arrest in lung cancer cells. The damage to NSCLC cells induced by acetylshikonin resembled results involving alterations in the cell membrane and mitochondrial morphology. Our analysis of oxidative stress revealed that acetylshikonin induced lipid oxidation and down-regulated the expression of glutathione peroxidase 4 (GPX4), which has been associated with necroptosis. We also determined that acetylshikonin induces the phosphorylation of receptor-interacting serine/threonine-protein kinase 1 (RIPK1)/RIPK3 and mixed lineage kinase domain-like kinase (MLKL). Treatment with RIPK1 inhibitors (necrostatin-1 or 7-Cl-O-Nec-1) significantly reversed acetylshikonin-induced MLKL phosphorylation and NSCLC cell death. These results indicate that acetylshikonin activated the RIPK1/RIPK3/MLKL cascade, leading to necroptosis in NSCLC cells. Our findings indicate that acetylshikonin reduces lung cancer cells by promoting G2/M phase arrest and necroptosis.
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Affiliation(s)
- Shih-Sen Lin
- Division of Chest Medicine, Department of Internal Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei 11101, Taiwan
| | - Tsung-Ming Chang
- Translational Medicine Center, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei 11101, Taiwan
- School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Augusta I-Chin Wei
- Translational Medicine Center, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei 11101, Taiwan
| | - Chiang-Wen Lee
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Puzi City 613016, Taiwan
- Department of Nursing, Division of Basic Medical Sciences, Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Puzi City 613016, Taiwan
- Department of Safety Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan
| | - Zih-Chan Lin
- Department of Nursing, Division of Basic Medical Sciences, Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Puzi City 613016, Taiwan
| | - Yao-Chang Chiang
- Department of Nursing, Division of Basic Medical Sciences, Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Puzi City 613016, Taiwan
| | - Miao-Ching Chi
- Department of Nursing, Division of Basic Medical Sciences, Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Puzi City 613016, Taiwan
- Division of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi 613016, Taiwan
- Department of Respiratory Care, Chang Gung University of Science and Technology, Chiayi 613016, Taiwan
| | - Ju-Fang Liu
- Translational Medicine Center, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei 11101, Taiwan
- School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404328, Taiwan
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Zhang Y, Zhang J, Li M, Qiao Y, Wang W, Ma L, Liu K. Target discovery of bioactive natural products with native-compound-coupled CNBr-activated Sepharose 4B beads (NCCB): Applications, mechanisms and outlooks. Bioorg Med Chem 2023; 96:117483. [PMID: 37951136 DOI: 10.1016/j.bmc.2023.117483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 11/13/2023]
Abstract
Natural products (NPs) represent a treasure trove for drug discovery and development due to their chemical structural diversity and a broad spectrum of biological activities. Uncovering the biological targets and understanding their molecular mechanism of actions are crucial steps in the development of clinical therapeutics. However, the structural complexity of NPs and intricate nature of biological system present formidable challenges in target identification of NPs. Although significant advances have been made in the development of new chemical tools, these methods often require high levels of synthetic skills for preparing chemical probes. This can be costly and time-consuming relaying on operationally complicated procedures and instruments. In recent efforts, we and others have successfully developed an operationally simple and practical chemical tool known as native-compound-coupled CNBr-activated Sepharose 4B beads (NCCB) for NP target identification. In this approach, a native compound readily reacts with commercial CNBr-activated Sepharose 4B beads with a process that is easily performed in any biology laboratory. Based on NCCB, our group has identified the direct targets of more than 60 NPs. In this review, we will elucidate the application scopes, including flavonoids, quinones, terpenoids and others, characteristics, chemical mechanisms, procedures, advantages, disadvantages, and future directions of NCCB in specific target discovery.
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Affiliation(s)
- Yueteng Zhang
- Basic Medical Research Center, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Junjie Zhang
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Menglong Li
- Basic Medical Research Center, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Yan Qiao
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Wei Wang
- Departments of Pharmacology & Toxicology and Chemistry & Biochemistry, and BIO5 Institute, University of Arizona, Tucson, AZ 85721, United States
| | - Lu Ma
- Basic Medical Research Center, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China.
| | - Kangdong Liu
- Basic Medical Research Center, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China.
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Santos TB, de Moraes LGC, Pacheco PAF, dos Santos DG, Ribeiro RMDAC, Moreira CDS, da Rocha DR. Naphthoquinones as a Promising Class of Compounds for Facing the Challenge of Parkinson's Disease. Pharmaceuticals (Basel) 2023; 16:1577. [PMID: 38004442 PMCID: PMC10674926 DOI: 10.3390/ph16111577] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 10/30/2023] [Accepted: 11/02/2023] [Indexed: 11/26/2023] Open
Abstract
Parkinson's disease (PD) is a degenerative disease that affects approximately 6.1 million people and is primarily caused by the loss of dopaminergic neurons. Naphthoquinones have several biological activities explored in the literature, including neuroprotective effects. Therefore, this review shows an overview of naphthoquinones with neuroprotective effects, such as shikonin, plumbagin and vitamin K, that prevented oxidative stress, in addition to multiple mechanisms. Synthetic naphthoquinones with inhibitory activity on the P2X7 receptor were also found, leading to a neuroprotective effect on Neuro-2a cells. It was found that naphthazarin can act as inhibitors of the MAO-B enzyme. Vitamin K and synthetic naphthoquinones hybrids with tryptophan or dopamine showed inhibition of the aggregation of α-synuclein. Synthetic derivatives of juglone and naphthazarin were able to protect Neuro-2a cells against neurodegenerative effects of neurotoxins. In addition, routes for producing synthetic derivatives were also discussed. With the data presented, 1,4-naphthoquinones can be considered as a promising class in the treatment of PD and this review aims to assist the scientific community in the application of these compounds. The derivatives presented can also support further research that explores their structures as synthetic platforms, in addition to helping to understand the interaction of naphthoquinones with biological targets related to PD.
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Affiliation(s)
- Thaís Barreto Santos
- Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista s/n°, Niterói CEP 24.020-141, RJ, Brazil; (T.B.S.); (L.G.C.d.M.); (P.A.F.P.); (D.G.d.S.); (R.M.d.A.C.R.); (C.d.S.M.)
| | - Leonardo Gomes Cavalieri de Moraes
- Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista s/n°, Niterói CEP 24.020-141, RJ, Brazil; (T.B.S.); (L.G.C.d.M.); (P.A.F.P.); (D.G.d.S.); (R.M.d.A.C.R.); (C.d.S.M.)
| | - Paulo Anastácio Furtado Pacheco
- Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista s/n°, Niterói CEP 24.020-141, RJ, Brazil; (T.B.S.); (L.G.C.d.M.); (P.A.F.P.); (D.G.d.S.); (R.M.d.A.C.R.); (C.d.S.M.)
| | - Douglas Galdino dos Santos
- Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista s/n°, Niterói CEP 24.020-141, RJ, Brazil; (T.B.S.); (L.G.C.d.M.); (P.A.F.P.); (D.G.d.S.); (R.M.d.A.C.R.); (C.d.S.M.)
| | - Rafaella Machado de Assis Cabral Ribeiro
- Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista s/n°, Niterói CEP 24.020-141, RJ, Brazil; (T.B.S.); (L.G.C.d.M.); (P.A.F.P.); (D.G.d.S.); (R.M.d.A.C.R.); (C.d.S.M.)
| | - Caroline dos Santos Moreira
- Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista s/n°, Niterói CEP 24.020-141, RJ, Brazil; (T.B.S.); (L.G.C.d.M.); (P.A.F.P.); (D.G.d.S.); (R.M.d.A.C.R.); (C.d.S.M.)
- Instituto Federal do Rio de Janeiro, Campus Paracambi, Rua Sebastião Lacerda s/n°, Fábrica, Paracambi CEP 26.600-000, RJ, Brazil
| | - David Rodrigues da Rocha
- Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista s/n°, Niterói CEP 24.020-141, RJ, Brazil; (T.B.S.); (L.G.C.d.M.); (P.A.F.P.); (D.G.d.S.); (R.M.d.A.C.R.); (C.d.S.M.)
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Tang Y, Wang Y, Wang X, Zhao Z, Cai H, Xie M, Jiang X, Zhang L, Cheng J, Yang L, Wang L, Zhao C, Huang X. Acetylshikonin exerts anti-tumor effects on non-small cell lung cancer through dual inhibition of STAT3 and EGFR. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 101:154109. [PMID: 35526322 DOI: 10.1016/j.phymed.2022.154109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/27/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Lung cancer is one of the most common types of malignant tumor. It has one of the highest morbidity and mortality rates worldwide, and approximately 85% of cases are non-small cell lung cancer (NSCLC). Clinically, several EGFR inhibitors have been used to treat NSCLC, but resistance can develop. Studies have shown that cross talk between signal transducer and activator of transcription 3 (STAT3) and epidermal growth factor receptor (EGFR) can mediate drug resistance. Acetylshikonin has obvious antitumor effects, but the mechanism of action is still unclear. PURPOSE To analyze the antitumor activity of acetylshikonin in lung cancer and clarify its molecular mechanism. METHODS Methyl thiazolyl tetrazolium (MTT), colony formation and 5-ethynyl-2'-deoxyuridine (EDU) assays were performed to examine the effects of acetylshikonin in inhibiting the proliferation of NSCLC cells (PC-9, H1975 and A549). Scratch wound and transwell assays were used to evaluate the migration and invasion of NSCLC cells. Flow cytometry was employed to determine whether acetylshikonin could induce apoptosis. Proteome sequencing was used to identify the targets of acetylshikonin. Immunofluorescence staining and western blotting were utilized to verify the inhibition of STAT3 and EGFR phosphorylation. A xenotransplantation model was established to evaluate the efficacy of acetylshikonin in nude mice. RESULTS Our data demonstrated that acetylshikonin significantly decreased the survival rate of human NSCLC cells, increased the apoptotic rate and inhibited cell migration dose-dependently. Immunofluorescence staining and western blotting analyses revealed that acetylshikonin inhibited EGFR and STAT3 pathways. Acetylshikonin also inhibited tumor growth in a xenograft model better than inhibitors of EGFR and STAT3. CONCLUSION Acetylshikonin has anti-cancer effects on NSCLC cells by inhibiting EGFR and STAT3, indicating that acetylshikonin may be a new antitumor drug to treat NSCLC.
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Affiliation(s)
- Yemeng Tang
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Yanmao Wang
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Xian Wang
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Zhucheng Zhao
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Haijian Cai
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Mengyao Xie
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Xintong Jiang
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Luyao Zhang
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Jiayun Cheng
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Lehe Yang
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Liangxing Wang
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
| | - Chengguang Zhao
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China; School of Pharmaceutical Sciences, Wenzhou Medical University, Building 11, Chashan Street, University Town, Wenzhou, Zhejiang 325035, China.
| | - Xiaoying Huang
- Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
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Zhang Z, Bai J, Zeng Y, Cai M, Yao Y, Wu H, You L, Dong X, Ni J. Pharmacology, toxicity and pharmacokinetics of acetylshikonin: a review. PHARMACEUTICAL BIOLOGY 2020; 58:950-958. [PMID: 32956595 PMCID: PMC7534356 DOI: 10.1080/13880209.2020.1818793] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
CONTEXT Acetylshikonin, a naphthoquinone derivative, is mainly extracted from some species of the family Boraginaceae, such as Lithospermum erythrorhizon Sieb. et Zucc., Arnebia euchroma (Royle) Johnst., and Arnebia guttata Bunge. As a bioactive compound, acetylshikonin has attracted much attention because of its broad pharmacological properties. OBJECTIVE This review provides a comprehensive summary of the pharmacology, toxicity, and pharmacokinetics of acetylshikonin focussing on its mechanisms on the basis of currently available literature. METHODS The information of acetylshikonin from 1977 to 2020 was collected using major databases including Elsevier, Scholar, PubMed, Springer, Web of Science, and CNKI. Acetylshikonin, pharmacology, toxicity, pharmacokinetics, and naphthoquinone derivative were used as key words. RESULTS According to emerging evidence, acetylshikonin exerts a wide spectrum of pharmacological effects such as anticancer, anti-inflammatory, lipid-regulatory, antidiabetic, antibacterial, antifungal, antioxidative, neuroprotective, and antiviral properties. However, only a few studies have reported the adverse effects of acetylshikonin, with respect to reproductive toxicity and genotoxicity. Pharmacokinetic studies demonstrate that acetylshikonin is associated with a wide distribution and poor absorption. CONCLUSIONS Although experimental data supports the beneficial effects of this compound, acetylshikonin cannot be considered as a therapy drug without further investigations, especially, on the toxicity and pharmacokinetics.
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Affiliation(s)
- Zhiqin Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Jie Bai
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yawen Zeng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Mengru Cai
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yu Yao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Huimin Wu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Longtai You
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xiaoxv Dong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Jian Ni
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
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Smach MA, Zarrouk A, Hafsa J, Gaffrej H, Ben Abdallah J, Charfeddine B, Limem K. Maillard Reaction Products and Phenolic Compounds from Roasted Peanut Flour Extracts Prevent Scopolamine-Induced Amnesia Via Cholinergic Modulation and Antioxidative Effects in Mice. J Med Food 2020; 24:645-652. [PMID: 33035147 DOI: 10.1089/jmf.2020.0028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Research on the beneficial effects of Maillard reaction products (MRPs) and phenolic compounds derived from roasted peanut flour on the nervous system remains insufficient. This study aimed to evaluate the effect of a 28-day oral administration of defatted peanut extract rich in MPRs and polyphenolic compounds on the cognitive impairments and oxidative injury induced by scopolamine in a mouse model. Light and dark extracts from peanut flour were prepared by heating peanuts at 187°C for two different times (8.6 and 12.7 min) and defatted using soxhlet apparatus. The mice were orally pretreated with either roasted defatted peanuts extracts (100 mg/kg) or donepezil (3 mg/kg) for 21 days. On day 19 and until day 28, mice were injected subcutaneously with water or scopolamine (1 mg/kg body weight) 15 min after roasted defatted peanuts extracts/water feeding. Mice were subsequently subjected to a battery of behavioral tests including open field locomotor activity assay, and Morris water maze test. Brain tissues were collected to measure acetylcholine, acetylcholinesterase, and oxidative parameters (glutathione and malondialdehyde). Roasted defatted peanuts (light and dark) (100 mg/kg) treatment significantly ameliorated cognitive performance and reversed the oxidative damage when compared with the scopolamine group. These data demonstrate the defatted peanuts extracts exert potent anti-amnesic effects via the modulation of cholinergic and antioxidant activities.
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Affiliation(s)
- Mohamed Ali Smach
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse, Tunisia
| | - Amira Zarrouk
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse, Tunisia.,Laboratory 'Nutrition, Functional Aliments and vascular Health', UR12ES05 Monastir University, Monastir, Tunisia
| | - Jawhar Hafsa
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse, Tunisia.,AgroBiosciences Research Division, Mohammed VI Polytechnic University, Ben-Guerir, Morocco
| | - Henda Gaffrej
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse, Tunisia
| | - Jihen Ben Abdallah
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse, Tunisia
| | - Bassem Charfeddine
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse, Tunisia
| | - Khalifa Limem
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse, Tunisia
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Prabhakar PK, Singh K, Kabra D, Gupta J. Natural SIRT1 modifiers as promising therapeutic agents for improving diabetic wound healing. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 76:153252. [PMID: 32505916 DOI: 10.1016/j.phymed.2020.153252] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/14/2020] [Accepted: 05/23/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The occurrence of chronic wounds, account for significant suffering of diabetic people, together with increasing healthcare burden. The chronic wounds associated with diabetes do not undergo the normal healing process rather stagnate into chronic proinflammatory phase as well as declined fibroblast function and impaired cell migration. HYPOTHESIS SIRT1, which is the most studied isoform of the sirtuin family in mammals, has now emerged as a crucial target for improving diabetic wound healing. It is an NAD+ dependent deacetylase, originally characterized to deacetylate histone proteins leading to heterochromatin formation and gene silencing. It is now known to regulate a number of cellular processes like cell proliferation, division, senescence, apoptosis, DNA repair, and metabolism. METHODOLOGY The retrieval of potentially relevant studies was done by systematically searching of three databases (Google Scholar, Web of science and PubMed) in December 2019. The keywords used as search terms were related to SIRT1 and wound healing. The systematic search retrieved 649 papers that were potentially relevant and after selection procedure, 73 studies were included this review and discussed below. RESULTS Many SIRT1 activating compounds (SACs) were found protective and improve diabetic wound healing through regulation of inflammation, cell migration, oxidative stress response and formation of granulation tissue at the wound site. CONCLUSIONS However, contradictory reports describe the opposing role of SACs on the regulation of cell migration and cancer incidence. SACs are therefore subjected to intense research for understanding the mechanisms responsible for controlling cell migration and therefore possess prospective to enter the clinical arena in the foreseeable future.
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Affiliation(s)
- Pranav Kumar Prabhakar
- Department of Medical Laboratory Sciences, Lovely Professional University Punjab, India 144411
| | - Karmveer Singh
- Department of Dermatology and Allergic Diseases, Ulm University, Ulm, Germany
| | - Dhiraj Kabra
- Biological Research Pharmacology Department, Sun Pharma Advanced Research Company Limited, Vadodara, Gujarat, India, 390010
| | - Jeena Gupta
- Department of Biochemistry, Lovely Professional University Punjab, India 144411.
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Development of an enzyme-linked immunosorbent assay for Keap1-Nrf2 interaction inhibitors identification. Redox Biol 2020; 34:101573. [PMID: 32422542 PMCID: PMC7231848 DOI: 10.1016/j.redox.2020.101573] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 05/10/2020] [Indexed: 12/15/2022] Open
Abstract
Development of Keap1–Nrf2 interaction inhibitors is a promising strategy for the discovery of therapeutic agents against oxidative stress-mediated diseases. Two motifs of Nrf2, ETGE and DLG motif, are responsible for Keap1-Nrf2 binding. Previously, ETGE peptide or ETGE-derived peptide-based approaches were used to detect Keap1-Nrf2 interaction; however, these approaches are not able to monitor Keap1-DLG motif binding. We first report here a novel Enzyme-linked Immunosorbent Assay (ELISA) approach to detect the protein-protein interaction of full length Keap1 and Nrf2. In our assay, the test compounds can target either ETGE or DLG binding site, therefore facilitating the exploration of diverse Keap1-Nrf2 inhibitors. Three FDA-approved drugs, zafirlukast, dutasteride and ketoconazole, were found to inhibit the Keap1-Nrf2 interaction with IC50 of 5.87, 2.81 and 1.67 μM, respectively. Additionally, these three drugs also activated Nrf2 pathway in neuroblasts and lipopolysaccharide (LPS)-challenged mice. The results presented here indicate that the ELISA approach has the capacity to identify Keap1-Nrf2 inhibitors. We established a novel Enzyme-linked Immunosorbent Assay for Keap1-Nrf2 interaction inhibitors identification. This ELISA is the first approach to detect the protein-protein interaction of full length Keap1 and Nrf2. In this assay, the test compounds can target either ETGE or DLG binding site, therefore facilitating the exploration of diverse Keap1-Nrf2 inhibitors. Zafirlukast, dutasteride and ketoconazole have been identified as inhibitors of the Keap1-Nrf2 interaction.
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Augustin N, Nuthakki VK, Abdullaha M, Hassan QP, Gandhi SG, Bharate SB. Discovery of Helminthosporin, an Anthraquinone Isolated from Rumex abyssinicus Jacq as a Dual Cholinesterase Inhibitor. ACS OMEGA 2020; 5:1616-1624. [PMID: 32010836 PMCID: PMC6990627 DOI: 10.1021/acsomega.9b03693] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 12/31/2019] [Indexed: 05/08/2023]
Abstract
Natural products have extensively contributed toward the discovery of new leads for Alzheimer's disease. During our search for new inhibitors of cholinesterase enzymes from natural sources, the ethyl acetate (EtOAc) extract of Rumex abyssinicus Jacq was identified as a dual cholinesterase inhibitor with IC50 values of 2.7 and 11.4 μg/mL against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), respectively. The phytochemical investigation of the EtOAc extract has resulted in isolation of four anthraquinones, namely, helminthosporin, emodin, chrysophanol, and physcion, amongst which the helminthosporin has been isolated for the first time from Rumex sp. All isolated secondary metabolites have displayed significant inhibition of EeAChE with IC50 values of 2.63, 15.21, 33.7, and 12.16 μM, respectively. In addition, the helminthosporin was also found to inhibit BChE with an IC50 value of 2.99 μM. The enzyme kinetic study has indicated that helminthosporin inhibits AChE and BChE in a noncompetitive manner with k i values of 10.3 and 12.3 μM, respectively. The results of molecular modeling and propidium iodide displacement assay have revealed that helminthosporin occupies the peripheral anionic site of the active site gorge of AChE. In the PAMPA-BBB permeability assay, helminthosporin was found to possess high BBB permeability (P e = 6.16 × 10-6 cm/s). In a nutshell, helminthosporin has been identified as a brain permeable dual cholinesterase inhibitor, and thus its further synthetic exploration is warranted for optimization of its potency.
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Affiliation(s)
- Ntemafack Augustin
- Plant
Biotechnology Division and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vijay K. Nuthakki
- Plant
Biotechnology Division and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mohd. Abdullaha
- Plant
Biotechnology Division and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Qazi Parvaiz Hassan
- Academy
of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
- Plant
Biotechnology Division, CSIR-Indian Institute
of Integrative Medicine, Sanat Nagar, Srinagar 190005, India
| | - Sumit G. Gandhi
- Plant
Biotechnology Division and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sandip B. Bharate
- Plant
Biotechnology Division and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy
of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
- E-mail: , . Phone: +91-191-2586333, +91-191-2585006 ext.
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11
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Hong M, Li J, Li S, M.Almutairi M. Acetylshikonin Sensitizes Hepatocellular Carcinoma Cells to Apoptosis through ROS-Mediated Caspase Activation. Cells 2019; 8:cells8111466. [PMID: 31752383 PMCID: PMC6912742 DOI: 10.3390/cells8111466] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/17/2019] [Accepted: 11/18/2019] [Indexed: 12/21/2022] Open
Abstract
The tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has shown strong and explicit cancer cell-selectivity, which results in little toxicity toward normal tissues, and has been recognized as a potential, relatively safe anticancer agent. However, several cancers are resistant to the apoptosis induced by TRAIL. A recent study found that shikonin b (alkannin, 5,8-dihydroxy-2-[(1S)-1-hydroxy-4-methylpent-3-en-1-yl]naphthalene-1,4-dione) might induce apoptosis in TRAIL-resistant cholangiocarcinoma cells through reactive oxygen species (ROS)-mediated caspases activation. However, the strong cytotoxic activity has limited its potential as an anticancer drug. Thus, the current study intends to discover novel shikonin derivatives which can sensitize the liver cancer cell to TRAIL-induced apoptosis while exhibiting little toxicity toward the normal hepatic cell. The trypan blue exclusion assay, western blot assay, 4′,6-diamidino-2-phenylindole (DAPI) staining and the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay as well as the ‘comet’ assay, were used to study the underlying mechanisms of cell death and to search for any mechanisms of an enhancement of TRAIL-mediated apoptosis in the presence of ASH. Herein, we demonstrated that non-cytotoxic doses of acetylshikonin (ASH), one of the shikonin derivatives, in combination with TRAIL, could promote apoptosis in HepG2 cells. Further studies showed that application of ASH in a non-cytotoxic dose (2.5 μM) could increase intracellular ROS production and induce DNA damage, which might trigger a cell intrinsic apoptosis pathway in the TRAIL-resistant HepG2 cell. Combination treatment with a non-cytotoxic dose of ASH and TRAIL activated caspase and increased the cleavage of PARP-1 in the HepG2 cell. However, when intracellular ROS production was suppressed by N-acetyl-l-cysteine (NAC), the synergistic effects of ASH and TRAIL on hepatocellular carcinoma (HCC) cell apoptosis was abolished. Furthermore, NAC could alleviate p53 and the p53 upregulated modulator of apoptosis (PUMA) expression induced by TRAIL and ASH. Small (or short) interfering RNA (siRNA) targeting PUMA or p53 significantly reversed ASH-mediated sensitization to TRAIL-induced apoptosis. In addition, Bax gene deficiency also abolished ASH-induced TRAIL sensitization. An orthotopical HCC implantation mice model further confirmed that co-treated ASH overcomes TRAIL resistance in HCC cells without exhibiting potent toxicity in vivo. In conclusion, the above data suggested that ROS could induce DNA damage and activating p53/PUMA/Bax signaling, and thus, this resulted in the permeabilization of mitochondrial outer membrane and activating caspases as well as sensitizing the HCC cell to apoptosis induced by TRAIL and ASH treatment.
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Affiliation(s)
- Ming Hong
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 51000, China
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou 51000, China
- Correspondence: (M.H.); (M.M.A.); Tel./Fax: +86-20-39352328 (M.H.); +785-864-6192 (M.M.A.)
| | - Jinke Li
- Department of Pharmacology & Toxicology, University of Kansas, Lawrence, KS 66045, USA; (J.L.); (S.L.)
| | - Siying Li
- Department of Pharmacology & Toxicology, University of Kansas, Lawrence, KS 66045, USA; (J.L.); (S.L.)
| | - Mohammed M.Almutairi
- Department of Pharmacology & Toxicology, University of Kansas, Lawrence, KS 66045, USA; (J.L.); (S.L.)
- Correspondence: (M.H.); (M.M.A.); Tel./Fax: +86-20-39352328 (M.H.); +785-864-6192 (M.M.A.)
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12
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Fan XH, Cheng L, Yan AH. Ameliorative effect of acetylshikonin on ovalbumin (OVA)-induced allergic rhinitis in mice through the inhibition of Th2 cytokine production and mast cell histamine release. APMIS 2019; 127:688-695. [PMID: 31344274 DOI: 10.1111/apm.12984] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 07/16/2019] [Indexed: 02/03/2023]
Abstract
Acetylshikonin has long been known as an anti-inflammatory and antioxidative reagent. However, the anti-allergic effect has not been studied. The aim of this study was to evaluate the effect of acetylshikonin on allergic rhinitis (AR) in mice. Mice were sensitized by intraperitoneal injection of OVA and aluminum hydroxide and challenged with intranasal instillation of OVA. Acetylshikonin was administered orally after nasal cavities challenge. Severity of allergic rhinitis was assessed according to nasal symptoms; serum OVA-specific immunoglobulin E (IgE), IgG1, and IgG2a level; and interleukin (IL)-4, IL-10, IL-5, IL-13, TNF-α, IL-12, and interferon (INF)-γ levels in nasal lavage fluid (NALF). Additionally, the histological change and the release of histamine in serum and nasal lavage fluid were evaluated by acid-Schiff stain and ELISA. Acetylshikonin attenuated manifestation of nasal symptoms in sensitized mice and inhibited production of Th2-related OVA-specific IgE, IgG1, and Th2 cell-produced IL-4, IL-5, IL-13, and mast cell produced histamine; however, it had no effect on Th1 cell-produced cytokines, like INF-γ. In addition, the degree of inflammatory cell infiltration and goblet cell hyperplasia was attenuated by acetylshikonin treatment. Our results suggest that acetylshikonin effectively reduces allergic inflammation in a mouse model of allergic rhinitis by its anti-allergic and anti-inflammatory properties.
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Affiliation(s)
- Xi-Hui Fan
- Department of Otorhinolaryngology, First Affiliated Hospital of China Medical University, Shen Yang, Liaoning, China
| | - Lei Cheng
- Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing.,International Centre for Allergy Research, Nanjing Medical University, Nanjing, China
| | - Ai-Hui Yan
- Department of Otorhinolaryngology, First Affiliated Hospital of China Medical University, Shen Yang, Liaoning, China
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13
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Mahajan PG, Dige NC, Vanjare BD, Raza H, Hassan M, Seo SY, Kim CH, Lee KH. Synthesis and biological evaluation of 1,2,4-triazolidine-3-thiones as potent acetylcholinesterase inhibitors: in vitro and in silico analysis through kinetics, chemoinformatics and computational approaches. Mol Divers 2019; 24:1185-1203. [PMID: 31396774 DOI: 10.1007/s11030-019-09983-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 07/25/2019] [Indexed: 02/08/2023]
Abstract
We have designed and synthesized a novel acidic ionic liquid and explored its catalytic efficiency for the synthesis of 1,2,4-triazolidine-3-thione derivatives. A simple reaction between aldehydes and thiosemicarbazide for short time in 60:40 v/v water/ethanol at room temperature offers target 1,2,4-triazolidine-3-thione derivatives. The formation of target compounds is confirmed by NMR, IR and ESI-MS analysis. Pleasingly, synthesized compounds show noteworthy acetylcholinesterase (AChE) inhibitory activity with much lower IC50 values 0.0269 ± 0.0021-1.1725 ± 0.0112 μM than standard Neostigmine methylsulphate. In addition, synthesized 1,2,4-triazolidine-3-thiones exhibits significant free radical scavenging activity as compared to standard vitamin C. The studies on validation of Lipinski's rule through chemoinformatics properties and molecular docking analysis are in support of in vitro analysis. Therefore, overall present study illustrates synthesis of some new 1,2,4-triazolidines-3-thiones which can serve as a template for drug designing such as AChE inhibitors. Herein, we proposed ionic liquid-catalyzed ease of synthetic approach for medicinally important 1,2,4-triazolidine-3-thiones and their bio-evaluations.
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Affiliation(s)
- Prasad G Mahajan
- Department of Chemistry, Kongju National University, Gongju, Chungnam, 32588, Republic of Korea
| | - Nilam C Dige
- Department of Biological Sciences, Kongju National University, Gongju, Chungnam, 32588, Republic of Korea
| | - Balasaheb D Vanjare
- Department of Chemistry, Kongju National University, Gongju, Chungnam, 32588, Republic of Korea
| | - Hussain Raza
- Department of Biological Sciences, Kongju National University, Gongju, Chungnam, 32588, Republic of Korea
| | - Mubashir Hassan
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Defence Road, Lahore, 54590, Pakistan
| | - Sung-Yum Seo
- Department of Biological Sciences, Kongju National University, Gongju, Chungnam, 32588, Republic of Korea.
| | - Chong- Hyeak Kim
- Center for Chemical Analysis, Korea Research Institute of Chemical Technology, Yuseong, Daejeon, 34114, Republic of Korea
| | - Ki Hwan Lee
- Department of Chemistry, Kongju National University, Gongju, Chungnam, 32588, Republic of Korea.
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Xie L, Tang H, Song J, Long J, Zhang L, Li X. Chrysophanol: a review of its pharmacology, toxicity and pharmacokinetics. ACTA ACUST UNITED AC 2019; 71:1475-1487. [PMID: 31373015 DOI: 10.1111/jphp.13143] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 06/30/2019] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Chrysophanol is a natural anthraquinone, also known as chrysophanic acid and 1,8-dihydroxy-3-methyl-anthraquinone. It has been widely used in the food and pharmaceutical fields. This review is intended to provide a comprehensive overview of the pharmacology, toxicity and pharmacokinetic researches of chrysophanol. KEY FINDING Information on chrysophanol was collected from the Internet database PubMed, Elsevier, ResearchGate, Web of Science, Wiley Online Library and Europe PM using a combination of keywords including 'pharmacology', 'toxicology' and 'pharmacokinetics'. The literature we collected included from January 2010 to June 2019. Chrysophanol has a wide spectrum of pharmacological effects, including anticancer, antioxidation, neuroprotection, antibacterial and antiviral, and regulating blood lipids. However, chrysophanol has obvious hepatotoxicity and nephrotoxicity, and pharmacokinetics indicate that the use of chrysophanol in combination with other drugs can reduce toxicity and enhance efficacy. SUMMARY Chrysophanol can be used in many diseases. Future research directions include how the concentration of chrysophanol affects pharmacological effects and toxicity; the mechanism of synergy between chrysophanol and other drugs.
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Affiliation(s)
- Long Xie
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hailong Tang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiawen Song
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiaying Long
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Linlin Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaofang Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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15
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Feng LD, Tian Y, Wang X, Dai R, Cai S, Cao YJ, Si YC. Therapy of Dredging the Bowels Enhanced the Neuroprotective Effect of Nourishing Kidney Herbs on Hippocampal Cholinergic System in Alzheimer's Disease Model Rat Induced by A β 1-42. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2018; 2018:3282385. [PMID: 30298092 PMCID: PMC6157172 DOI: 10.1155/2018/3282385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 06/03/2018] [Accepted: 08/15/2018] [Indexed: 11/17/2022]
Abstract
BACKGROUND Therapy of nourishing kidney has been used for treating memory deficits of Alzheimer's disease (AD) for thousands of years based on traditional Chinese medicine. However, we found the therapy of dredging the bowels could alleviate both memory deficits and mental symptoms of AD in clinic. OBJECTIVE To determine whether the therapy of dredging the bowels could enhance the neuroprotective effect of nourishing kidney herbs for treating AD rats, and to explore the underlying mechanism of the combination of nourishing kidney and dredging the bowels (NKDB) herbs. METHODS 60 rats were randomly divided into sham-operated group (SOG), model group (MG), nourishing kidney group (NKG), dredging the bowels group (DBG), nourishing kidney and dredging the bowels group (NKDBG), and donepezil hydrochloride group (DHG). The model establishment was performed by injecting Aβ 1-42 into the hippocampal CA1 region. Animals received aqueous solution of Chinese herbal medicine or western medicine while SOG received only distilled water. Ability of learning and memory were assessed by Morris water maze. Acetylcholinesterase(AChE) and choline acetyltransferase (ChAT) activity and positive cells in the hippocampus were detected by the biochemical and immunofluorescent assay. RESULTS All rats were in the same baseline. While after model establishment, ability of learning and memory of MG, NKG, DBG, NKDBG, and DHG were significantly impaired compared with SOG. Whereas after treatment, ability of learning and memory of NKG, DBG, NKDBG, and DHG were significantly improved compared with MG. Additionally, AChE activity of NKG, DBG, and NKDBG was significantly decreased, meanwhile ChAT activity showed an increased tendency. The number of AChE-positive cells and ChAT-positive cells of both NKDBG and DHG were significantly decreased and increased respectively, superior to those when compared with NKG and DBG. What's more, there was no significant difference between NKDBG and DHG. CONCLUSION Therapy of dredging the bowels could enhance the neuroprotective effect of nourishing kidney herbs by reversing morphological damage of hippocampal cholinergic system. Furthermore, treatment with NKDB herbs could be effectively against AD, providing a practical therapeutic strategy in clinic.
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Affiliation(s)
- Lu-Da Feng
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yang Tian
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
- Neuroscience Department, Tufts University, Boston MA, 02111, USA
| | - Xin Wang
- Research Center of TCM Information Engineering, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Run Dai
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Song Cai
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yu-Jia Cao
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yin-Chu Si
- Department of Anatomy, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
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Melucci D, Locatelli M, Locatelli C, Zappi A, De Laurentiis F, Carradori S, Campestre C, Leporini L, Zengin G, Picot CMN, Menghini L, Mahomoodally MF. A Comparative Assessment of Biological Effects and Chemical Profile of Italian Asphodeline lutea Extracts. Molecules 2018; 23:molecules23020461. [PMID: 29463056 PMCID: PMC6017467 DOI: 10.3390/molecules23020461] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 02/16/2018] [Accepted: 02/17/2018] [Indexed: 12/14/2022] Open
Abstract
The present study aims to highlight the therapeutic potential of Asphodeline lutea (AL), a wild edible plant of the Mediterranean diet. Roots, aerial parts, and flowers of AL at two different phenological stages were collected from three locations in Italy. The inhibitory activities of extracts on strategic enzymes linked to human diseases were assessed. The antioxidant properties were evaluated in vitro, using six standard bioassays. The phenolic and anthraquinone profiles were also established using HPLC-PDA. Zinc, cadmium, lead, and copper contents were also determined. All the samples inhibited acetylcholinesterase (from 1.51 to 2.20 mg GALAEs/g extract), tyrosinase (from 7.50 to 25.3 mg KAEs/g extract), and α-amylase (from 0.37 to 0.51 mmol ACAEs/g extract). Aloe-emodin and physcion were present in all parts, while rhein was not detected. The phenolic profile and the heavy metals composition of specimens gathered from three different regions of Italy were different. It can be argued that samples collected near the street can contain higher concentrations of heavy metals. The experimental data confirm that the A. lutea species could be considered as a potential source of bioactive metabolites, and its consumption could play a positive and safe role in human health maintenance.
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Affiliation(s)
- Dora Melucci
- Department of Chemistry "G. Ciamician", University of Bologna, Bologna 40126, Italy.
| | - Marcello Locatelli
- Department of Pharmacy, University "G. D'Annunzio" of Chieti-Pescara, Chieti 66100, Italy.
- Interuniversity Consortium of Structural and Systems Biology, Rome 00136, Italy.
| | - Clinio Locatelli
- Department of Chemistry "G. Ciamician", University of Bologna, Bologna 40126, Italy.
| | - Alessandro Zappi
- Department of Chemistry "G. Ciamician", University of Bologna, Bologna 40126, Italy.
| | | | - Simone Carradori
- Department of Pharmacy, University "G. D'Annunzio" of Chieti-Pescara, Chieti 66100, Italy.
| | - Cristina Campestre
- Department of Pharmacy, University "G. D'Annunzio" of Chieti-Pescara, Chieti 66100, Italy.
| | - Lidia Leporini
- Department of Pharmacy, University "G. D'Annunzio" of Chieti-Pescara, Chieti 66100, Italy.
| | - Gokhan Zengin
- Department of Biology, Selcuk University, Campus, 42250, Konya 42130, Turkey.
| | | | - Luigi Menghini
- Department of Pharmacy, University "G. D'Annunzio" of Chieti-Pescara, Chieti 66100, Italy.
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Huang T, Mi H, Lin CY, Zhao L, Zhong LLD, Liu FB, Zhang G, Lu AP, Bian ZX. MOST: most-similar ligand based approach to target prediction. BMC Bioinformatics 2017; 18:165. [PMID: 28284192 PMCID: PMC5346209 DOI: 10.1186/s12859-017-1586-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 03/04/2017] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Many computational approaches have been used for target prediction, including machine learning, reverse docking, bioactivity spectra analysis, and chemical similarity searching. Recent studies have suggested that chemical similarity searching may be driven by the most-similar ligand. However, the extent of bioactivity of most-similar ligands has been oversimplified or even neglected in these studies, and this has impaired the prediction power. RESULTS Here we propose the MOst-Similar ligand-based Target inference approach, namely MOST, which uses fingerprint similarity and explicit bioactivity of the most-similar ligands to predict targets of the query compound. Performance of MOST was evaluated by using combinations of different fingerprint schemes, machine learning methods, and bioactivity representations. In sevenfold cross-validation with a benchmark Ki dataset from CHEMBL release 19 containing 61,937 bioactivity data of 173 human targets, MOST achieved high average prediction accuracy (0.95 for pKi ≥ 5, and 0.87 for pKi ≥ 6). Morgan fingerprint was shown to be slightly better than FP2. Logistic Regression and Random Forest methods performed better than Naïve Bayes. In a temporal validation, the Ki dataset from CHEMBL19 were used to train models and predict the bioactivity of newly deposited ligands in CHEMBL20. MOST also performed well with high accuracy (0.90 for pKi ≥ 5, and 0.76 for pKi ≥ 6), when Logistic Regression and Morgan fingerprint were employed. Furthermore, the p values associated with explicit bioactivity were found be a robust index for removing false positive predictions. Implicit bioactivity did not offer this capability. Finally, p values generated with Logistic Regression, Morgan fingerprint and explicit activity were integrated with a false discovery rate (FDR) control procedure to reduce false positives in multiple-target prediction scenario, and the success of this strategy it was demonstrated with a case of fluanisone. In the case of aloe-emodin's laxative effect, MOST predicted that acetylcholinesterase was the mechanism-of-action target; in vivo studies validated this prediction. CONCLUSIONS Using the MOST approach can result in highly accurate and robust target prediction. Integrated with a FDR control procedure, MOST provides a reliable framework for multiple-target inference. It has prospective applications in drug repurposing and mechanism-of-action target prediction.
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Affiliation(s)
- Tao Huang
- Lab of Brain and Gut Research, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong, People's Republic of China
| | - Hong Mi
- Lab of Brain and Gut Research, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong, People's Republic of China.,Department of Gastroenterology, the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, People's Republic of China
| | - Cheng-Yuan Lin
- Lab of Brain and Gut Research, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong, People's Republic of China.,YMU-HKBU Joint Laboratory of Traditional Natural Medicine, Yunnan Minzu University, Kunming, 650500, People's Republic of China
| | - Ling Zhao
- Lab of Brain and Gut Research, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong, People's Republic of China
| | - Linda L D Zhong
- Lab of Brain and Gut Research, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong, People's Republic of China.,Hong Kong Chinese Medicine Clinical Study Centre, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong, People's Republic of China
| | - Feng-Bin Liu
- Department of Gastroenterology, the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, People's Republic of China
| | - Ge Zhang
- Lab of Brain and Gut Research, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong, People's Republic of China
| | - Ai-Ping Lu
- Lab of Brain and Gut Research, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong, People's Republic of China.,Hong Kong Chinese Medicine Clinical Study Centre, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong, People's Republic of China
| | - Zhao-Xiang Bian
- Lab of Brain and Gut Research, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong, People's Republic of China. .,Hong Kong Chinese Medicine Clinical Study Centre, Hong Kong Baptist University, 7 Baptist University Road, Hong Kong, People's Republic of China.
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Wang Y, Hu JS, Lin HQ, Ip TM, Wan DCC. Herbalog: A tool for target-based identification of herbal drug efficacy through molecular docking. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:1469-1474. [PMID: 27765367 DOI: 10.1016/j.phymed.2016.08.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 07/22/2016] [Accepted: 08/26/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Traditionally, molecular docking is primarily employed to screen pure compounds; the top-ranking chemicals are subsequently selected for experimental validation. Unlike synthetic chemicals, most natural products are commercially unavailable. The isolation and purification of each natural product is extremely time-consuming, which has restricted the screening of lead compounds from natural products. PURPOSE We developed a protocol, Herbalog, to facilitate the identification of bioactive phytochemicals through molecular docking. METHODS We wrote a script using Python and Autodock Vina for docking; ligand displacement and adipolysis assays were used to determine the anti-fatty acid binding protein (FABP) 4 activity of bioactive extracts. An ultraperformance liquid chromatography quadrupole time-of-flight mass spectrometry system was applied for identifying major peaks of bioactive extracts. RESULTS Herbalog, a natural product database, contains 5,112 phytochemicals from 197 common herbs and a script that counts the number of hits from docking in each herb and calculates the hit rate of herbs. Herbalog prioritizes herbs according to their hit rates, and top-ranking herb candidates contain a large repertoire of hits. We used Herbalog as a screening tool and identified labdane diterpenoids from Andrographis paniculata as leading candidates of FABP4 inhibitors. CONCLUSION Herbalog facilitates the discovery of herbs that possess the highest number of inhibitors or activators against target proteins, which reduces the sample preparation time for preliminary validation.
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Affiliation(s)
- Yan Wang
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Jian-Shu Hu
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Huang-Quan Lin
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong SAR, China
| | - Tsz-Ming Ip
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - David Chi-Cheong Wan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
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Kim DJ, Lee JH, Park HR, Choi YW. Acetylshikonin inhibits growth of oral squamous cell carcinoma by inducing apoptosis. Arch Oral Biol 2016; 70:149-157. [PMID: 27371806 DOI: 10.1016/j.archoralbio.2016.06.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 06/16/2016] [Accepted: 06/17/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVES Recently, shikonin derivatives from Lithospermum erythrorhizon have been suggested as potential chemotherapeutic agents against numerous types of cancers in addition to their traditional uses, e.g., as anti-inflammatory agents. Acetylshikonin, one of shikonin derivatives, has also been reported to possess anticancer activity. However, few studies of the effectiveness of acetylshikonin against cancer cells have been conducted, and there are no studies of oral cancers. In this study, we investigated the usefulness of acetylshikonin as a treatment regimen for oral cancers by observing the growth inhibitory function of acetylshikonin and the involved mechanisms. DESIGNS The viability, cell cycle, and ratio of apoptotic cells of oral squamous cell carcinoma (OSCC) cells were observed after treatment with acetylshikonin using MTT assay, flow cytometric analysis, and Annexin V/PI staining, respectively. In addition, molecular changes of apoptosis-related pathways and the role of reactive oxygen species (ROS) were analyzed in acetylshikonin-treated cells. RESULTS We observed that acetylshikonin significantly suppressed the growth of OSCC cells by inducing apoptotic cell death, and acetylshikonin affected the viability of a normal keratinocyte cell line HaCaT to a lesser degree, suggesting that acetylshikonin may be a good chemotherapeutic reagent with less toxicity to normal tissues. In addition, we found that acetylshikonin-induced apoptosis of OSCC cells is mediated by ROS as well as G2 cell cycle arrest. ROS production in response to acetylshikonin treatment enhanced the phosphorylation of JNK and p38 MAPK, which are in the major pathways of apoptotic cell death mechanisms. CONCLUSIONS In summary, our data suggest that acetylshikonin is a strong candidate for use as a selective chemotherapeutic agent for the treatment of OSCC.
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Affiliation(s)
- Da Jeong Kim
- Department of Oral Pathology & BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan, South Korea; School of Dentistry, Pusan National University, 49 Busandaehak-Ro, Yangsan 626-870, South Korea
| | - Ji Hye Lee
- Department of Oral Pathology & BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan, South Korea; School of Dentistry, Pusan National University, 49 Busandaehak-Ro, Yangsan 626-870, South Korea
| | - Hae Ryoun Park
- Department of Oral Pathology & BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan, South Korea; School of Dentistry, Pusan National University, 49 Busandaehak-Ro, Yangsan 626-870, South Korea; Institute of Translational Dental Sciences, Pusan National University, 49 Busandaehak-Ro, Yangsan 626-870, South Korea.
| | - Young Whan Choi
- Department of Horticultural Bioscience, Pusan National University, Samnangjin-Ro 1268-50, Samnangjin-eup, Miryang 627-706, South Korea.
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Peptides from hydrolysate of lantern fish (Benthosema pterotum) proved neuroprotective in vitro and in vivo. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.04.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Wang Y, Lin HQ, Xiao CY, Law WK, Hu JS, Ip TM, Wan DCC. Using molecular docking screening for identifying hyperoside as an inhibitor of fatty acid binding protein 4 from a natural product database. J Funct Foods 2016. [DOI: 10.1016/j.jff.2015.10.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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