1
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Kar PP, Araveti PB, Saxena K, Borah A, Sijwali P, Srivastava A. Cimicifugin, a broad-spectrum inhibitor of Theileria annulata and Plasmodium falciparum CDK7. Antimicrob Agents Chemother 2024:e0044024. [PMID: 39023263 DOI: 10.1128/aac.00440-24] [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: 03/26/2024] [Accepted: 06/15/2024] [Indexed: 07/20/2024] Open
Abstract
Cyclin-dependent kinase 7 is an attractive therapeutic target for the treatment of cancers, and a previous report suggested that Plasmodium falciparum CDK7 is a potential drug target for developing new anti-malarial drugs. In this study, we aimed to characterize and evaluate the drug target potential of Theileria annulata CDK7. Theileria annulata is responsible for tropical theileriosis, which induces a phenotype similar to cancerous cells like immortalization, hyperproliferation, and dissemination. Virtual screening of the MyriaScreen II library predicted 14 compounds with high binding energies to the ATP-binding pocket of TaCDK7. Three compounds (cimicifugin, ST092793, and ST026925) of these 14 compounds were non-cytotoxic to the uninfected bovine cells (BoMac cells). Cimicifugin treatment led to the activation of the extrinsic apoptosis pathway and induced autophagy in T. annulata-infected cells. Furthermore, cimicifugin also inhibited the growth of P. falciparum, indicating that it has both anti-theilerial and anti-malarial activities and that TaCDK7 and PfCDK7 are promising drug targets.
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Affiliation(s)
- Prajna Parimita Kar
- BRIC-NIAB (National Institute of Animal Biotechnology), Hyderabad, India
- Regional Centre for Biotechnology (RCB), Faridabad, India
| | - Prasanna Babu Araveti
- BRIC-NIAB (National Institute of Animal Biotechnology), Hyderabad, India
- Regional Centre for Biotechnology (RCB), Faridabad, India
| | - Kanika Saxena
- CSIR-CCMB (Center for Cellular and Molecular Biology), Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Atlanta Borah
- BRIC-NIAB (National Institute of Animal Biotechnology), Hyderabad, India
| | - Puran Sijwali
- CSIR-CCMB (Center for Cellular and Molecular Biology), Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Anand Srivastava
- BRIC-NIAB (National Institute of Animal Biotechnology), Hyderabad, India
- Regional Centre for Biotechnology (RCB), Faridabad, India
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2
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Zhao Y, Hu JJ, Bai XL, Liu HP, Qi XW, Liao X. Fast screening of tyrosinase inhibitors from traditional Chinese medicinal plants by ligand fishing in combination with in situ fluorescent assay. Anal Bioanal Chem 2022; 414:2265-2273. [PMID: 34982177 DOI: 10.1007/s00216-021-03864-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/26/2021] [Accepted: 12/22/2021] [Indexed: 11/30/2022]
Abstract
A simple and rapid method for screening of tyrosinase (TYR) inhibitors present in traditional Chinese medicines (TCMs) was developed by combining ligand fishing and the fluorescent enzymatic assay based on dopamine-functionalized carbon quantum dots (CQDs-Dopa). Ligands of the enzyme present in the TCM extractions were firstly adsorbed on the enzyme-modified magnetic beads, and then the beads were magnetically separated and subjected directly to the CQDs-Dopa-based fluorescent assay. Finally, compounds were desorbed from the "active" beads and identified with ultra-performance liquid chromatography-triple quadrupole mass spectrometry. A known natural TYR inhibitor quercetin was selected to assess the feasibility and quantification performance of this method, and good linearity in the range of 0.01-0.16 mM (R2 = 0.992) with a low detection limit of 0.004 mM was obtained. This method was then applied to screen TYR inhibitors present in Scutellaria baicalensis and Sophora flavescens. Six TYR inhibitors including baicalin (1), baicalein (2), wogonin (3), oroxylin A (4), kurarinone (5), and sophoraflavanone G (6) were found, among which 1-4 were firstly discovered in this work. This is the first report on the in situ assessment of the target compounds obtained by ligand fishing in the form of a mixture, which exhibited the combined advantages of specific extraction ability of ligand fishing and the high sensitivity of CQDs-based fluorescent assay, showing great potential for fast screening of enzyme inhibitors from TCMs.
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Affiliation(s)
- Yan Zhao
- School of Science, Xihua University, Chengdu, 610039, China
| | - Jin-Jie Hu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Lin Bai
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hao-Peng Liu
- School of Science, Xihua University, Chengdu, 610039, China
| | - Xu-Wei Qi
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xun Liao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.
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3
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Xiong X, Tang N, Lai X, Zhang J, Wen W, Li X, Li A, Wu Y, Liu Z. Insights Into Amentoflavone: A Natural Multifunctional Biflavonoid. Front Pharmacol 2022; 12:768708. [PMID: 35002708 PMCID: PMC8727548 DOI: 10.3389/fphar.2021.768708] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/02/2021] [Indexed: 12/12/2022] Open
Abstract
Amentoflavone is an active phenolic compound isolated from Selaginella tamariscina over 40 years. Amentoflavone has been extensively recorded as a molecule which displays multifunctional biological activities. Especially, amentoflavone involves in anti-cancer activity by mediating various signaling pathways such as extracellular signal-regulated kinase (ERK), nuclear factor kappa-B (NF-κB) and phosphoinositide 3-kinase/protein kinase B (PI3K/Akt), and emerges anti-SARS-CoV-2 effect via binding towards the main protease (Mpro/3CLpro), spike protein receptor binding domain (RBD) and RNA-dependent RNA polymerase (RdRp) of SARS-CoV-2. Therefore, amentoflavone is considered to be a promising therapeutic agent for clinical research. Considering the multifunction of amentoflavone, the current review comprehensively discuss the chemistry, the progress in its diverse biological activities, including anti-inflammatory, anti-oxidation, anti-microorganism, metabolism regulation, neuroprotection, radioprotection, musculoskeletal protection and antidepressant, specially the fascinating role against various types of cancers. In addition, the bioavailability and drug delivery of amentoflavone, the molecular mechanisms underlying the activities of amentoflavone, the molecular docking simulation of amentoflavone through in silico approach and anti-SARS-CoV-2 effect of amentoflavone are discussed.
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Affiliation(s)
- Xifeng Xiong
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, China
| | - Nan Tang
- Department of Traditional Chinese Medicine, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, China
| | - Xudong Lai
- Department of Infectious Disease, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, China
| | - Jinli Zhang
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, China
| | - Weilun Wen
- Department of Traditional Chinese Medicine, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, China
| | - Xiaojian Li
- Department of Burn and Plastic Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, China
| | - Aiguo Li
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, China
| | - Yanhua Wu
- Department of Traditional Chinese Medicine, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, China
| | - Zhihe Liu
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, China
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4
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Varshney M, Kumar B, Rana VS, Sethiya NK. An overview on therapeutic and medicinal potential of poly-hydroxy flavone viz. Heptamethoxyflavone, Kaempferitrin, Vitexin and Amentoflavone for management of Alzheimer's and Parkinson's diseases: a critical analysis on mechanistic insight. Crit Rev Food Sci Nutr 2021; 63:2749-2772. [PMID: 34590507 DOI: 10.1080/10408398.2021.1980761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Neurodegenerative disorders occur when nerve cells in the brain or peripheral nervous system partial or complete fail in their functions and sometimes even die due to some injuries or aging. Neurodegenerative disorders such as Alzheimer's Disease (AD) and Parkinson's Disease (PD), have been majorly resulted due to degeneration of neurons and neuroinflammation progressively. There are many similarities that correlates both AD and PD on a cellular and sub-cellular level. Therefore, a hope for therapeutic advancement for simultaneous upgradation in both the diseases are directly depending on the discovery of common mechanism at molecular and cellular level. Recent and past evidences from scientific literature supporting the efficacy of plants flavonoids in treatment and protection of both AD and PD. Further, dietary flavones, specially Heptamethoxyflavone, Kaempferitrin, Vitexin and Amentoflavone gains recently much more attention for producing many health beneficiary effects including neuroprotection. Despite of these evidence a detailed updated overview of neuroprotective effects against both AD and PD by Heptamethoxyflavone, Kaempferitrin, Vitexin and Amentoflavone are still missing. In this context several published studies were assessed by using various online electronic search engines/databases to meet the objective from 1981 to 2021 (Approx. 224). Therefore, present review was designed to deliver the detailed description on these flavones including therapeutic benefits in AD, PD and other CNS complications with critical analysis on underlying mechanisms.
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Affiliation(s)
| | - Bhavna Kumar
- Faculty of Pharmacy, DIT University, Dehradun, India
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5
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Singhal SS, Mohanty A, Kulkarni P, Horne D, Awasthi S, Salgia R. RLIP depletion induces apoptosis associated with inhibition of JAK2/STAT3 signaling in melanoma cells. Carcinogenesis 2021; 42:742-752. [PMID: 33623991 DOI: 10.1093/carcin/bgab016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/14/2021] [Accepted: 02/19/2021] [Indexed: 01/03/2023] Open
Abstract
The incidence of malignant melanoma, a neoplasm of melanocytic cells, is increasing rapidly. The lymph nodes are often the first site of metastasis and can herald systemic dissemination, which is almost uniformly fatal. RLIP, a multi-specific ATP-dependent transporter that is over-expressed in several types of cancers, plays a central role in cancer cell resistance to radiation and chemotherapy. RLIP appears to be necessary for cancer cell survival because both in vitro cell culture and in vivo animal tumor studies show that the depletion or inhibition of RLIP causes selective toxicity to malignant cells. RLIP depletion/inhibition triggers apoptosis in cancer cells by inducing the accumulation of endogenously formed glutathione-conjugates. In our in vivo studies, we administered RLIP antibodies or antisense oligonucleotides to mice bearing subcutaneous xenografts of SKMEL2 and SKMEL5 melanoma cells and demonstrated that both treatments caused significant xenograft regression with no apparent toxic effects. Anti-RLIP antibodies and antisense, which respectively inhibit RLIP-mediated transport and deplete RLIP expression, showed similar tumor regressing activities, indicating that the inhibition of RLIP transport activity at the cell surface is sufficient to achieve anti-tumor activity. Furthermore, RLIP antisense treatment reduced levels of RLIP, pSTAT3, pJAK2, pSrc, Mcl-1 and Bcl2, as well as CDK4 and cyclin B1, and increased levels of Bax and phospho 5' AMP-activated protein kinase (pAMPK). These studies indicate that RLIP serves as a key effector in the survival of melanoma cells and is a valid target for cancer therapy. Overall, compounds that inhibit, deplete or downregulate RLIP will function as wide-spectrum agents to treat melanoma, independent of common signaling pathway mutations.
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Affiliation(s)
- Sharad S Singhal
- Department of Medical Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center and National Medical Center, Duarte, CA, USA
| | - Atish Mohanty
- Department of Medical Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center and National Medical Center, Duarte, CA, USA
| | - Prakash Kulkarni
- Department of Medical Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center and National Medical Center, Duarte, CA, USA
| | - David Horne
- Department of Molecular Medicine, Beckman Research Institute, City of Hope Comprehensive Cancer Center and National Medical Center, Duarte, CA, USA
| | - Sanjay Awasthi
- Department of Internal Medicine, Division of Hematology and Oncology, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Ravi Salgia
- Department of Medical Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center and National Medical Center, Duarte, CA, USA
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6
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Davies MP, Benitez R, Perez C, Jakupovic S, Welsby P, Rzepecka K, Alder J, Davidson C, Martinez A, Hayes JM. Structure-Based Design of Potent Selective Nanomolar Type-II Inhibitors of Glycogen Synthase Kinase-3β. J Med Chem 2021; 64:1497-1509. [PMID: 33499592 DOI: 10.1021/acs.jmedchem.0c01568] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
For the first time, the in silico design, screening, and in vitro validation of potent GSK-3β type-II inhibitors are presented. In the absence of crystallographic evidence for a DFG-out GSK-3β activation loop conformation, computational models were designed using an adapted DOLPHIN approach and a method consisting of Prime loop refinement, induced-fit docking, and molecular dynamics. Virtual screening of the Biogenics subset from the ZINC database led to an initial selection of 20 Phase I compounds revealing two low micromolar inhibitors in an isolated enzyme assay. Twenty more analogues (Phase II compounds) related to the hit [pyrimidin-2-yl]amino-furo[3,2-b]furyl-urea scaffold were selected for structure-activity relationship analysis. The Phase II studies led to five highly potent nanomolar inhibitors, with compound 23 (IC50 =0.087 μM) > 100 times more potent than the best Phase I inhibitor, and selectivity for GSK-3β inhibition compared to homologous kinases was observed. Ex vivo experiments (SH-SY5Y cell lines) for tau hyperphosphorylation revealed promising neuroprotective effects at low micromolar concentrations. The type-II inhibitor design has been unraveled as a potential route toward more clinically effective GSK-3β inhibitors.
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Affiliation(s)
- Matthew P Davies
- School of Pharmacy & Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Rocio Benitez
- Centro de Investigaciones Biologicas, CSIC, Avenida Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Concepción Perez
- Instituto de Quimica Medica, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Sven Jakupovic
- AnalytiCon Discovery GmbH, Hermannswerder Haus 17, 14473 Potsdam, Germany
| | - Philip Welsby
- School of Pharmacy & Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Klaudia Rzepecka
- School of Pharmacy & Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Jane Alder
- School of Pharmacy & Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Colin Davidson
- School of Pharmacy & Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom
| | - Ana Martinez
- Centro de Investigaciones Biologicas, CSIC, Avenida Ramiro de Maeztu 9, 28040 Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto Carlos III, 28031 Madrid, Spain
| | - Joseph M Hayes
- School of Pharmacy & Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, United Kingdom
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7
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Development of novel anti-malarial from structurally diverse library of molecules, targeting plant-like CDPK1, a multistage growth regulator of P. falciparum. Biochem J 2020; 477:1951-1970. [PMID: 32401306 DOI: 10.1042/bcj20200045] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 05/11/2020] [Accepted: 05/13/2020] [Indexed: 01/06/2023]
Abstract
Upon Plasmodium falciparum merozoites exposure to low [K+] environment in blood plasma, there is escalation of cytosolic [Ca2+] which activates Ca2+-Dependent Protein Kinase 1 (CDPK1), a signaling hub of intra-erythrocytic proliferative stages of parasite. Given its high abundance and multidimensional attributes in parasite life-cycle, this is a lucrative target for designing antimalarials. Towards this, we have virtually screened MyriaScreenII diversity collection of 10,000 drug-like molecules, which resulted in 18 compounds complementing ATP-binding pocket of CDPK1. In vitro screening for toxicity in mammalian cells revealed that these compounds are non-toxic in nature. Furthermore, SPR analysis demonstrated differential binding affinity of these compounds towards recombinantly purified CDPK1 protein. Selection of lead compound 1 was performed by evaluating their inhibitory effects on phosphorylation and ATP binding activities of CDPK1. Furthermore, in vitro biophysical evaluations by ITC and FS revealed that binding of compound 1 is driven by formation of energetically favorable non-covalent interactions, with different binding constants in presence and absence of Ca2+, and TSA authenticated stability of compound 1 bound CDPK1 complex. Finally, compound 1 strongly inhibited intra-erythrocytic growth of P. falciparum in vitro. Conceivably, we propose a novel CDPK1-selective inhibitor, step towards developing pan-CDPK kinase inhibitors, prerequisite for cross-stage anti-malarial protection.
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8
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STAT3 transcription factor as target for anti-cancer therapy. Pharmacol Rep 2020; 72:1101-1124. [PMID: 32880101 DOI: 10.1007/s43440-020-00156-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 08/23/2020] [Accepted: 08/25/2020] [Indexed: 12/17/2022]
Abstract
STATs constitute a large family of transcription activators and transducers of signals that have an important role in many cell functions as regulation of proliferation and differentiation of the cell also regulation of apoptosis and angiogenesis. STAT3 as a member of that family, recently was discovered to have a vital role in progression of different types of cancers. The activation of STAT3 was observed to regulate multiple gene functions during cancer-like cell proliferation, differentiation, apoptosis, metastasis, inflammation, immunity, cell survival, and angiogenesis. The inhibition of STAT3 activation has been an important target for cancer therapy. Inhibitors of STAT3 have been used for a long time for treatment of many types of cancers like leukemia, melanoma, colon, and renal cancer. In this review article, we summarize and discuss different drugs inhibiting the action of STAT3 and used in treatment of different types of cancer.
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9
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Beta-caryophyllene enhances wound healing through multiple routes. PLoS One 2019; 14:e0216104. [PMID: 31841509 PMCID: PMC6913986 DOI: 10.1371/journal.pone.0216104] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 11/15/2019] [Indexed: 12/11/2022] Open
Abstract
Beta-caryophyllene is an odoriferous bicyclic sesquiterpene found in various herbs and spices. Recently, it was found that beta-caryophyllene is a ligand of the cannabinoid receptor 2 (CB2). Activation of CB2 will decrease pain, a major signal for inflammatory responses. We hypothesized that beta-caryophyllene can affect wound healing by decreasing inflammation. Here we show that cutaneous wounds of mice treated with beta-caryophyllene had enhanced re-epithelialization. The treated tissue showed increased cell proliferation and cells treated with beta-caryophyllene showed enhanced cell migration, suggesting that the higher re-epithelialization is due to enhanced cell proliferation and cell migration. The treated tissues also had up-regulated gene expression for hair follicle bulge stem cells. Olfactory receptors were not involved in the enhanced wound healing. Transient Receptor Potential channel genes were up-regulated in the injured skin exposed to beta-caryophyllene. Interestingly, there were sex differences in the impact of beta- caryophyllene as only the injured skin of female mice had enhanced re-epithelialization after exposure to beta-caryophyllene. Our study suggests that chemical compounds included in essential oils have the capability to improve wound healing, an effect generated by synergetic impacts of multiple pathways.
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10
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Rozpędek W, Pytel D, Nowak-Zduńczyk A, Lewko D, Wojtczak R, Diehl JA, Majsterek I. Breaking the DNA Damage Response via Serine/Threonine Kinase Inhibitors to Improve Cancer Treatment. Curr Med Chem 2019; 26:1425-1445. [PMID: 29345572 DOI: 10.2174/0929867325666180117102233] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 11/13/2017] [Accepted: 11/24/2017] [Indexed: 12/22/2022]
Abstract
Multiple, both endogenous and exogenous, sources may induce DNA damage and DNA replication stress. Cells have developed DNA damage response (DDR) signaling pathways to maintain genomic stability and effectively detect and repair DNA lesions. Serine/ threonine kinases such as Ataxia-telangiectasia mutated (ATM) and Ataxia-telangiectasia and Rad3-Related (ATR) are the major regulators of DDR, since after sensing stalled DNA replication forks, DNA double- or single-strand breaks, may directly phosphorylate and activate their downstream targets, that play a key role in DNA repair, cell cycle arrest and apoptotic cell death. Interestingly, key components of DDR signaling networks may constitute an attractive target for anti-cancer therapy through two distinct potential approaches: as chemoand radiosensitizers to enhance the effectiveness of currently used genotoxic treatment or as single agents to exploit defects in DDR in cancer cells via synthetic lethal approach. Moreover, the newest data reported that serine/threonine protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK) is also closely associated with cancer development and progression. Thereby, utilization of small-molecule, serine/threonine kinase inhibitors may provide a novel, groundbreaking, anti-cancer treatment strategy. Currently, a range of potent, highlyselective toward ATM, ATR and PERK inhibitors has been discovered, but after foregoing study, additional investigations are necessary for their future clinical use.
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Affiliation(s)
- Wioletta Rozpędek
- Department of Clinical Chemistry and Biochemistry, Military-Medical Faculty, Medical University of Lodz, Lodz, Poland
| | - Dariusz Pytel
- Department of Biochemistry and Molecular Biology, Hollings Cancer Center, Medical University of South Carolina, Charleston, United States
| | - Alicja Nowak-Zduńczyk
- Department of Clinical Chemistry and Biochemistry, Military-Medical Faculty, Medical University of Lodz, Lodz, Poland
| | - Dawid Lewko
- Department of Clinical Chemistry and Biochemistry, Military-Medical Faculty, Medical University of Lodz, Lodz, Poland
| | - Radosław Wojtczak
- Department of Clinical Chemistry and Biochemistry, Military-Medical Faculty, Medical University of Lodz, Lodz, Poland
| | - J Alan Diehl
- Department of Biochemistry and Molecular Biology, Hollings Cancer Center, Medical University of South Carolina, Charleston, United States
| | - Ireneusz Majsterek
- Department of Clinical Chemistry and Biochemistry, Military-Medical Faculty, Medical University of Lodz, Lodz, Poland
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11
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Wu KJ, Liu X, Wong SY, Zhou Y, Ma DL, Leung CH. Synthesis and Evaluation of Dibenzothiophene Analogues as Pin1 Inhibitors for Cervical Cancer Therapy. ACS OMEGA 2019; 4:9228-9234. [PMID: 31460012 PMCID: PMC6648297 DOI: 10.1021/acsomega.9b00281] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 04/08/2019] [Indexed: 05/03/2023]
Abstract
The peptidyl-prolyl isomerase Pin1 is correlated with the progression of cervical cancer via regulating numerous oncogenic and tumor suppressor pathways. p65 is a crucial regulator of tumorigenesis that is regulated by Pin1, and p65 signaling suppression can enhance the antitumor efficacy of doxorubicin (DOX). Here, we utilized a structural mimicry approach to synthesize a series of dibenzothiophene analogues and evaluated their ability to inhibit Pin1 activity. Compound 1a was identified as a potent Pin1 inhibitor that inhibited p65 signaling in vitro and in cervical cancer cells. Moreover, compound 1a enhanced the cytotoxicity of DOX in cervical cancer cells via reducing p65 nuclear accumulation and enhancing DOX uptake. These compounds are promising scaffolds for developing more potent Pin1 inhibitors against cervical cancer, either alone or in combination with anticancer drugs such as DOX.
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Affiliation(s)
- Ke-Jia Wu
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macao, 999078, China
| | - Xie Liu
- School
of Chemistry, Biology and Materials Engineering, Suzhou University of Science and Technology, No. 1 Kerui Road, Suzhou New District, Suzhou, Jiangsu 215009, China
| | - Suk-Yu Wong
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong 999077, Hong Kong, China
| | - Yuyang Zhou
- School
of Chemistry, Biology and Materials Engineering, Suzhou University of Science and Technology, No. 1 Kerui Road, Suzhou New District, Suzhou, Jiangsu 215009, China
| | - Dik-Lung Ma
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong 999077, Hong Kong, China
| | - Chung-Hang Leung
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macao, 999078, China
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12
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Wang Z, Liang H, Cao H, Zhang B, Li J, Wang W, Qin S, Wang Y, Xuan L, Lai L, Shui W. Efficient ligand discovery from natural herbs by integrating virtual screening, affinity mass spectrometry and targeted metabolomics. Analyst 2019; 144:2881-2890. [PMID: 30788466 DOI: 10.1039/c8an02482k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Although natural herbs have been a rich source of compounds for drug discovery, identification of bioactive components from natural herbs suffers from low efficiency and prohibitive cost of the conventional bioassay-based screening platforms. Here we develop a new strategy that integrates virtual screening, affinity mass spectrometry (MS) and targeted metabolomics for efficient discovery of herb-derived ligands towards a specific protein target site. Herb-based virtual screening conveniently selects herbs of potential bioactivity whereas affinity MS combined with targeted metabolomics readily screens candidate compounds in a high-throughput manner. This new integrated approach was benchmarked on screening chemical ligands that target the hydrophobic pocket of the nucleoprotein (NP) of Ebola viruses for which no small molecule ligands have been reported. Seven compounds identified by this approach from the crude extracts of three natural herbs were all validated to bind to the NP target in pure ligand binding assays. Among them, three compounds isolated from Piper nigrum (HJ-1, HJ-4 and HJ-6) strongly promoted the formation of large NP oligomers and reduced the protein thermal stability. In addition, cooperative binding between these chemical ligands and an endogenous peptide ligand was observed, and molecular docking was employed to propose a possible mechanism. Taken together, we established a platform integrating in silico and experimental screening approaches for efficient discovery of herb-derived bioactive ligands especially towards non-enzyme protein targets.
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Affiliation(s)
- Zhihua Wang
- College of Pharmacy, Nankai University, Tianjin 300071, China
- High-throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biotechnology and Medicine, Tianjin 300457, China
| | - Hao Liang
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China.
| | - Haijie Cao
- College of Pharmacy, Nankai University, Tianjin 300071, China
- High-throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biotechnology and Medicine, Tianjin 300457, China
- iHuman Institute, ShanghaiTech University, Shanghai 201210, China.
| | - Bingjie Zhang
- iHuman Institute, ShanghaiTech University, Shanghai 201210, China.
| | - Jun Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, P. R. China.
| | - Wenqiong Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, P. R. China.
| | - Shanshan Qin
- iHuman Institute, ShanghaiTech University, Shanghai 201210, China.
| | - Yuefei Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Lijiang Xuan
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201203, P. R. China.
| | - Luhua Lai
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China.
- Center for Quantitative Biology, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Wenqing Shui
- iHuman Institute, ShanghaiTech University, Shanghai 201210, China.
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Li G, Boyle JW, Ko CN, Zeng W, Wong VKW, Wan JB, Chan PWH, Ma DL, Leung CH. Aurone derivatives as Vps34 inhibitors that modulate autophagy. Acta Pharm Sin B 2019; 9:537-544. [PMID: 31193773 PMCID: PMC6543056 DOI: 10.1016/j.apsb.2019.01.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 01/19/2019] [Accepted: 01/23/2019] [Indexed: 12/14/2022] Open
Abstract
We report in this study the identification of a natural product-like antagonist (1a) of Vps34 as a potent autophagy modulator via structure-based virtual screening. Aurone derivative 1a strongly inhibited Vps34 activity in cell-free and cell-based assays. Significantly, 1a prevents autophagy in human cells induced either by starvation or by an mTOR inhibitor. In silico modeling and kinetic data revealed that 1a could function as an ATP-competitive inhibitor of Vps34. Moreover, it suppressed autophagy in vivo and without inducing heart or liver damage in mice. 1a could be utilized as a new motif for more selective and efficacious antagonists of Vps34 for the potential treatment of autophagy-related human diseases.
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Key Words
- Aurone derivative
- Autophagy
- CETSA, cellular thermal shift assay
- Co-IP, co-immunoprecipitation
- DMEM, Dulbecco׳s modified Eagle׳s medium
- DMSO, dimethyl sulfoxide
- EBSS, Earle׳s balanced salt solution
- ELISA, enzyme-linked immunosorbent assay
- FBS, fetal bovine serum
- Heart or liver damage
- Inhibitor
- Natural products
- PE, phosphatidylethanolamine
- PI, phosphatidylinositol
- PI3K, phosphoinositide 3-kinase
- PI3P, phosphatidylinositol 3-phosphate
- PS, phosphatidylserine
- Structure-based virtual screening
- Vesicle trafficking
- Vps34
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14
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Li L, Kong J, Yao CH, Liu XF, Liu JH. Rapid identification of urokinase plasminogen activator inhibitors from Traditional Chinese Medicines based on ultrafiltration, LC-MS and in silico docking. J Pharm Biomed Anal 2019; 164:241-248. [PMID: 30396051 DOI: 10.1016/j.jpba.2018.10.036] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 09/27/2018] [Accepted: 10/21/2018] [Indexed: 02/06/2023]
Abstract
The urokinase plasminogen activator (uPA) is regarded as the crucial trigger for plasmin generation, which is involved in several diseases especially for neoplasm metastasis. In this study, an efficient approach integrating ultrafiltration, LC/MS, bioassay and in silico docking, was proposed for rapidly detecting uPA ligands from Traditional Chinese Medicines (TCMs). Forty-two TCMs were initially assessed, and as illustrative case studies, Galla Chinensis and Sanguisorbae Radix, which appeared significant inhibitory activities on uPA, were chosen to develpe and verify the strategy. A total of seven uPA ligands were successfully detected and identified. Two of them, pentagalloylglucose and 28-O-β-d-glucopyranosyl pomolic acid, were demonstrated to be potential inhibitors, with IC50 at 1.639 μM and 37.82 μM repectively. Furthermore, a combinatorial compound library screening combined with in silico docking assay, was revealed that ursolic acid (IC50 = 2.623 μM) was also speculated to be a potent parent structure for inhibition of uPA. This approach offers a multidimensional perspective to discover uPA-binding leading compounds from TCMs or other complex mixtures, which would provide an efficient route for drug discovery.
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Affiliation(s)
- Li Li
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Jing Kong
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Chun-Hua Yao
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Xiu-Feng Liu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China.
| | - Ji-Hua Liu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China.
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15
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Zheng Y, Pu W, Li J, Shen X, Zhou Q, Fan X, Yang SY, Yu Y, Chen Q, Wang C, Wu X, Peng Y. Discovery of a Prenylated Flavonol Derivative as a Pin1 Inhibitor to Suppress Hepatocellular Carcinoma by Modulating MicroRNA Biogenesis. Chem Asian J 2018; 14:130-134. [PMID: 30474357 DOI: 10.1002/asia.201801461] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 11/01/2018] [Indexed: 02/05/2023]
Abstract
Peptidyl-prolyl cis-trans isomerase Pin1 plays a crucial role in the development of human cancers. Recently, we have disclosed that Pin1 regulates the biogenesis of miRNA, which is aberrantly expressed in HCC and promotes HCC progression, indicating the therapeutic role of Pin1 in HCC therapy. Here, 7-(benzyloxy)-3,5-dihydroxy-2-(4-methoxyphenyl)-8-(3-methylbut-2-en-1-yl)-4H-chromen-4-one (AF-39) was identified as a novel Pin1 inhibitor. Biochemical tests indicate that AF-39 potently inhibits Pin1 activity with an IC50 values of 1.008 μm, and also displays high selectivity for Pin1 among peptidyl prolyl isomerases. Furthermore, AF-39 significantly suppresses cell proliferation of HCC cells in a dose- and time-dependent manner. Mechanistically, AF-39 regulates the subcellular distribution of XPO5 and increases miRNAs biogenesis in HCC cells. This work provides a promising lead compound for HCC treatment, highlighting the therapeutic potential of miRNA-based therapy against human cancer.
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Affiliation(s)
- Yuanyuan Zheng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Wenchen Pu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Jiao Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Xianyan Shen
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Qiang Zhou
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Xin Fan
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Sheng-Yong Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Yamei Yu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Qiang Chen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Chun Wang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Xin Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Yong Peng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
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16
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Gao H, Zhang W, Wang B, Hui A, Du B, Wang T, Meng L, Bian H, Wu Z. Purification, characterization and anti-fatigue activity of polysaccharide fractions from okra (Abelmoschus esculentus (L.) Moench). Food Funct 2018; 9:1088-1101. [PMID: 29359209 DOI: 10.1039/c7fo01821e] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The aim of this study was to investigate the anti-fatigue activity of polysaccharide fractions from Abelmoschus esculentus (L.) Moench (AE) in mice. After crude polysaccharide (CAEP) was extracted from AE and purified by DEAE cellulose-52 column, two polysaccharide fractions (AEP-1 and AEP-2) were obtained. The structural analysis suggested that AEP-1 and AEP-2 were a RG-I polysaccharide and an AG-II polysaccharide, respectively. According to the results of the weight-loaded swimming test, compared with the negative control group, the CAEP, AEP-1 and AEP-2 treatment groups could prolong the swimming time, decrease serum urea nitrogen (SUN) and blood lactic acid (BLA), and increase hepatic glycogen (HG) and muscle glycogen (MG), which indicated that okra polysaccharides have an effective anti-fatigue activity. Furthermore, our study exhibited the anti-fatigue mechanism of okra polysaccharide was correlated with retarding the accumulation of creatine kinase (CK) and lactate dehydrogenase (LDH) in serum, and enhancing succinate dehydrogenase (SDH), adenosine triphosphate (ATP) and adenosine triphosphatase (ATPase) levels. In addition, the anti-fatigue activity of AEP-1 was stronger than that of AEP-2, and significantly better than that of CAEP. Therefore, AEP-1 and AEP-2 may be the main active anti-fatigue functional substances of AE.
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Affiliation(s)
- Han Gao
- School of Food Science and Engineering, Hefei University of Technology, Hefei 230009, Anhui, China.
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17
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Wu KJ, Zhong HJ, Yang G, Wu C, Huang JM, Li G, Ma DL, Leung CH. Small Molecule Pin1 Inhibitor Blocking NF-κB Signaling in Prostate Cancer Cells. Chem Asian J 2018; 13:275-279. [DOI: 10.1002/asia.201701216] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 12/24/2017] [Indexed: 01/27/2023]
Affiliation(s)
- Ke-Jia Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences; University of Macau; Macao China
| | - Hai-Jing Zhong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences; University of Macau; Macao China
| | - Guanjun Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences; University of Macau; Macao China
| | - Chun Wu
- Department of Chemistry; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Jie-Min Huang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences; University of Macau; Macao China
| | - Guodong Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences; University of Macau; Macao China
| | - Dik-Lung Ma
- Department of Chemistry; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences; University of Macau; Macao China
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18
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Zhang K, Zhang J, Wang X, Wang L, Pugliese M, Passantino A, Li J. Cardioprotection of Sheng Mai Yin a classic formula on adriamycin induced myocardial injury in Wistar rats. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 38:1-11. [PMID: 29425641 DOI: 10.1016/j.phymed.2017.09.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 07/04/2017] [Accepted: 09/19/2017] [Indexed: 06/08/2023]
Abstract
BACKGROUND Sheng Mai Yin (SMY), a well-known Chinese herbal medicine, is widely used to treat cardiac diseases characterized by the deficiency of Qi and Yin syndrome in China. SMY-based treatment has been derived from Traditional Chinese Medicine (TCM), officially recorded in the Chinese Pharmacopoeia. PURPOSE We aimed to clarify whether SMY attenuates myocardial injury induced by adriamycin in Wistar rats with chronic heart failure (CHF). METHODS To quantify ginsenoside Rg1, ophiopogonin D, ophiopogonin D', schisandrin by HPLC. To establish CHF animal model, adriamycin was intraperitoneally injected in Wistar rats for 7 weeks at a dose of 2 mg/kg body weight. Overall, 180 rats were randomly assigned to six groups: control, CHF model, captopril (positive control), high dose (HSMY), medium dose (MSMY), and low dose (LSMY). Experimental rats were fed 0.625 mg/kg captopril and 90 mg/kg, 45 mg/kg, and 22.5 mg/kg SMY, respectively, over 7 weeks. The inflammatory cytokines TNF-α and IL-6 were measured using ELISA. Matrix metalloproteinases (MMPs) were identified using immunohistochemistry (IHC). Both IHC and RT-PCR were used for quantification of COL-IV expression levels in the heart tissues. Scanning electron microscopy (SEM) was used for the visualization of myocardium morphology. RESULTS The concentration of ginsenoside Rg1, ophiopogonin D, ophiopogonin D' and schisandrin in SMY was found to be 25.63 ± 3.42 mg, 11.00 ± 1.17 mg, 7.02 ± 0.51 mg, and 25.31 ± 4.28 mg per gram of SMY, respectively. Compared with CHF model group, TNF-α levels were significantly lower (p < .01) in the four drug-administered groups. Moreover, except in the SYM low dose group, IL-6 levels in the other 3 drug-administered groups were also significantly reduced (p < .01). COL-IV expression was also significantly reduced on treatment with high SYM dose (p < .05). IHC results confirmed that SMY and captopril significantly reduced MMPs expression in the heart. CONCLUSION SMY could control or slow CHF progression by suppressing pathological changes in the myocardium in CHF models. This could be attributed at least partly to the downregulation of IL-6 and TNF-α and inhibition of overexpression of MMPs and COL-IV, which significantly relieved the cardiac-linked pathologies, decreased the risk of myocardial fibrosis, and inhibited cardiac remodeling. These findings suggested that SMY and captopril have similar efficacy for the treatment of adriamycin-induced myocardial injury. In addition, Chinese herbal preparation SMY may play a role in the treatment of cardiac diseases.
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Affiliation(s)
- Kai Zhang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy.
| | - Jingyan Zhang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Xurong Wang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Lei Wang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Michela Pugliese
- Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | | | - Jianxi Li
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China.
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19
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A strategy for screening of α-glucosidase inhibitors from Morus alba root bark based on the ligand fishing combined with high-performance liquid chromatography mass spectrometer and molecular docking. Talanta 2017; 180:337-345. [PMID: 29332820 DOI: 10.1016/j.talanta.2017.12.065] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Revised: 12/14/2017] [Accepted: 12/21/2017] [Indexed: 11/23/2022]
Abstract
A new method based on ligand fishing combined with high-performance liquid chromatography quadrupole-time-of-flight mass spectrometer and molecular docking was established to screen α-glucosidase inhibitors from a traditional Chinese medicine Morus alba root bark. α-Glucosidase was immobilized on magnetic nanoparticles, used as a solid support to incubate with crude extract. After ligand fishing, the eluates were analyzed by high-performance liquid chromatography quadrupole-time-of-flight mass spectrometer, obtaining eleven ligands (1-4, 6-12) eventually. In order to discriminate the non-specific binders and discover powerful enzyme inhibitors, molecular docking was further performed and three of the eleven ligands were optimized to be excellent α-glucosidase inhibitors by the confirmation of isolation and bioassay of individual compounds. These three ligands, sanggenons G (6), O (7) and sanggenol G (12) exhibited striking inhibitory activities with extremely low IC50 values. The results suggest that established method will be applied to a wide range of target protein to screen potential bioactive constituents from herbal medicines.
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20
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Peska L, Buza K, Koller J. Drug-target interaction prediction: A Bayesian ranking approach. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2017; 152:15-21. [PMID: 29054256 DOI: 10.1016/j.cmpb.2017.09.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 07/28/2017] [Accepted: 09/05/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND AND OBJECTIVE In silico prediction of drug-target interactions (DTI) could provide valuable information and speed-up the process of drug repositioning - finding novel usage for existing drugs. In our work, we focus on machine learning algorithms supporting drug-centric repositioning approach, which aims to find novel usage for existing or abandoned drugs. We aim at proposing a per-drug ranking-based method, which reflects the needs of drug-centric repositioning research better than conventional drug-target prediction approaches. METHODS We propose Bayesian Ranking Prediction of Drug-Target Interactions (BRDTI). The method is based on Bayesian Personalized Ranking matrix factorization (BPR) which has been shown to be an excellent approach for various preference learning tasks, however, it has not been used for DTI prediction previously. In order to successfully deal with DTI challenges, we extended BPR by proposing: (i) the incorporation of target bias, (ii) a technique to handle new drugs and (iii) content alignment to take structural similarities of drugs and targets into account. RESULTS Evaluation on five benchmark datasets shows that BRDTI outperforms several state-of-the-art approaches in terms of per-drug nDCG and AUC. BRDTI results w.r.t. nDCG are 0.929, 0.953, 0.948, 0.897 and 0.690 for G-Protein Coupled Receptors (GPCR), Ion Channels (IC), Nuclear Receptors (NR), Enzymes (E) and Kinase (K) datasets respectively. Additionally, BRDTI significantly outperformed other methods (BLM-NII, WNN-GIP, NetLapRLS and CMF) w.r.t. nDCG in 17 out of 20 cases. Furthermore, BRDTI was also shown to be able to predict novel drug-target interactions not contained in the original datasets. The average recall at top-10 predicted targets for each drug was 0.762, 0.560, 1.000 and 0.404 for GPCR, IC, NR, and E datasets respectively. CONCLUSIONS Based on the evaluation, we can conclude that BRDTI is an appropriate choice for researchers looking for an in silico DTI prediction technique to be used in drug-centric repositioning scenarios. BRDTI Software and supplementary materials are available online at www.ksi.mff.cuni.cz/∼peska/BRDTI.
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Affiliation(s)
- Ladislav Peska
- Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic; Brain Imaging Centre, Hungarian Academy of Sciences, Budapest, Hungary.
| | - Krisztian Buza
- Brain Imaging Centre, Hungarian Academy of Sciences, Budapest, Hungary; Rheinische Friedrich-Wilhelms-Universität Bonn, Germany
| | - Júlia Koller
- Institute of Genomic Medicine and Rare Disorders, Semmelweis University, Budapest, Hungary
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21
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Wu KJ, Huang JM, Zhong HJ, Dong ZZ, Vellaisamy K, Lu JJ, Chen XP, Chiu P, Kwong DWJ, Han QB, Ma DL, Leung CH. A natural product-like JAK2/STAT3 inhibitor induces apoptosis of malignant melanoma cells. PLoS One 2017; 12:e0177123. [PMID: 28570563 PMCID: PMC5453690 DOI: 10.1371/journal.pone.0177123] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 04/21/2017] [Indexed: 12/18/2022] Open
Abstract
The JAK2/STAT3 signaling pathway plays a critical role in tumorigenesis, and has been suggested as a potential molecular target for anti-melanoma therapeutics. However, few JAK2 inhibitors were being tested for melanoma therapy. In this study, eight amentoflavone analogues were evaluated for their activity against human malignant melanoma cells. The most potent analogue, compound 1, inhibited the phosphorylation of JAK2 and STAT3 in human melanoma cells, but had no discernible effect on total JAK2 and STAT3 levels. A cellular thermal shift assay was performed to identify that JAK2 is engaged by 1 in cell lysates. Moreover, compound 1 showed higher antiproliferative activity against human melanoma A375 cells compared to a panel of cancer and normal cell lines. Compound 1 also activated caspase-3 and cleaved PARP, which are markers of apoptosis, and suppressed the anti-apoptotic Bcl-2 level. Finally, compound 1 induced apoptosis in 80% of treated melanoma cells. To our knowledge, compound 1 is the first amentoflavone-based JAK2 inhibitor to be investigated for use as an anti-melanoma agent.
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Affiliation(s)
- Ke-Jia Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Jie-Min Huang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Hai-Jing Zhong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Zhen-Zhen Dong
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Kasipandi Vellaisamy
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Jin-Jian Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Xiu-Ping Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Pauline Chiu
- Department of Chemistry, The University of Hong Kong, Hong Kong, China
- The State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Hong Kong, China
| | - Daniel W. J. Kwong
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Quan-Bin Han
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
- * E-mail: (CHL); (DLM)
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
- * E-mail: (CHL); (DLM)
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22
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Kang TS, Wang W, Zhong HJ, Dong ZZ, Huang Q, Mok SWF, Leung CH, Wong VKW, Ma DL. An anti-prostate cancer benzofuran-conjugated iridium(III) complex as a dual inhibitor of STAT3 and NF-κB. Cancer Lett 2017; 396:76-84. [DOI: 10.1016/j.canlet.2017.03.016] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 03/08/2017] [Accepted: 03/09/2017] [Indexed: 01/28/2023]
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23
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Rethinking JAK2 inhibition: towards novel strategies of more specific and versatile janus kinase inhibition. Leukemia 2017; 31:1023-1038. [DOI: 10.1038/leu.2017.43] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 12/16/2016] [Accepted: 01/10/2017] [Indexed: 12/19/2022]
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24
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Zhang A, Fang H, Wang Y, Yan G, Sun H, Zhou X, Wang Y, Liu L, Wang X. Discovery and verification of the potential targets from bioactive molecules by network pharmacology-based target prediction combined with high-throughput metabolomics. RSC Adv 2017. [DOI: 10.1039/c7ra09522h] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Natural products are an invaluable source for drug candidates. Currently, plasma metabolome has suggested that compounds present in herbs may exert bioactivity.
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Affiliation(s)
- Aihua Zhang
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of State Administration of TCM
- Laboratory of Metabolomics
- Department of Pharmaceutical Analysis
| | - Heng Fang
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of State Administration of TCM
- Laboratory of Metabolomics
- Department of Pharmaceutical Analysis
| | - Yangyang Wang
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of State Administration of TCM
- Laboratory of Metabolomics
- Department of Pharmaceutical Analysis
| | - Guangli Yan
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of State Administration of TCM
- Laboratory of Metabolomics
- Department of Pharmaceutical Analysis
| | - Hui Sun
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of State Administration of TCM
- Laboratory of Metabolomics
- Department of Pharmaceutical Analysis
| | - Xiaohang Zhou
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of State Administration of TCM
- Laboratory of Metabolomics
- Department of Pharmaceutical Analysis
| | - Yuying Wang
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of State Administration of TCM
- Laboratory of Metabolomics
- Department of Pharmaceutical Analysis
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine
- Macau University of Science and Technology
- China
| | - Xijun Wang
- Sino-America Chinmedomics Technology Collaboration Center
- National TCM Key Laboratory of Serum Pharmacochemistry
- Chinmedomics Research Center of State Administration of TCM
- Laboratory of Metabolomics
- Department of Pharmaceutical Analysis
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25
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Tahir ul Q M, Kiran S, Ashfaq UA, Javed MR, Anwar F, Ali MA, Gilani AUH. Discovery of Novel Dengue NS2B/NS3 Protease Inhibitors Using
Pharmacophore Modeling and Molecular Docking Based Virtual
Screening of the ZINC Database. INT J PHARMACOL 2016. [DOI: 10.3923/ijp.2016.621.632] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Gao X, Han L, Ren Y. In Silico Exploration of 1,7-Diazacarbazole Analogs as Checkpoint Kinase 1 Inhibitors by Using 3D QSAR, Molecular Docking Study, and Molecular Dynamics Simulations. Molecules 2016; 21:molecules21050591. [PMID: 27164065 PMCID: PMC6273173 DOI: 10.3390/molecules21050591] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 04/11/2016] [Accepted: 04/28/2016] [Indexed: 12/11/2022] Open
Abstract
Checkpoint kinase 1 (Chk1) is an important serine/threonine kinase with a self-protection function. The combination of Chk1 inhibitors and anti-cancer drugs can enhance the selectivity of tumor therapy. In this work, a set of 1,7-diazacarbazole analogs were identified as potent Chk1 inhibitors through a series of computer-aided drug design processes, including three-dimensional quantitative structure–activity relationship (3D-QSAR) modeling, molecular docking, and molecular dynamics simulations. The optimal QSAR models showed significant cross-validated correlation q2 values (0.531, 0.726), fitted correlation r2 coefficients (higher than 0.90), and standard error of prediction (less than 0.250). These results suggested that the developed models possess good predictive ability. Moreover, molecular docking and molecular dynamics simulations were applied to highlight the important interactions between the ligand and the Chk1 receptor protein. This study shows that hydrogen bonding and electrostatic forces are key interactions that confer bioactivity.
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Affiliation(s)
- Xiaodong Gao
- School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China.
| | - Liping Han
- School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China.
| | - Yujie Ren
- School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China.
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Sun H, Pan P, Tian S, Xu L, Kong X, Li Y, Dan Li, Hou T. Constructing and Validating High-Performance MIEC-SVM Models in Virtual Screening for Kinases: A Better Way for Actives Discovery. Sci Rep 2016; 6:24817. [PMID: 27102549 PMCID: PMC4840416 DOI: 10.1038/srep24817] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 04/06/2016] [Indexed: 01/23/2023] Open
Abstract
The MIEC-SVM approach, which combines molecular interaction energy components (MIEC) derived from free energy decomposition and support vector machine (SVM), has been found effective in capturing the energetic patterns of protein-peptide recognition. However, the performance of this approach in identifying small molecule inhibitors of drug targets has not been well assessed and validated by experiments. Thereafter, by combining different model construction protocols, the issues related to developing best MIEC-SVM models were firstly discussed upon three kinase targets (ABL, ALK, and BRAF). As for the investigated targets, the optimized MIEC-SVM models performed much better than the models based on the default SVM parameters and Autodock for the tested datasets. Then, the proposed strategy was utilized to screen the Specs database for discovering potential inhibitors of the ALK kinase. The experimental results showed that the optimized MIEC-SVM model, which identified 7 actives with IC50 < 10 μM from 50 purchased compounds (namely hit rate of 14%, and 4 in nM level) and performed much better than Autodock (3 actives with IC50 < 10 μM from 50 purchased compounds, namely hit rate of 6%, and 2 in nM level), suggesting that the proposed strategy is a powerful tool in structure-based virtual screening.
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Affiliation(s)
- Huiyong Sun
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
- State Key Lab of CAD&CG, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
| | - Peichen Pan
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
| | - Sheng Tian
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Lei Xu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
| | - Xiaotian Kong
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Youyong Li
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Dan Li
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
| | - Tingjun Hou
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
- State Key Lab of CAD&CG, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
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A chemical family-based strategy for uncovering hidden bioactive molecules and multicomponent interactions in herbal medicines. Sci Rep 2016; 6:23840. [PMID: 27025397 PMCID: PMC4812296 DOI: 10.1038/srep23840] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 03/15/2016] [Indexed: 01/11/2023] Open
Abstract
Two concepts involving natural products were proposed and demonstrated in this paper. (1) Natural product libraries (e.g. herbal extract) are not perfect for bioactivity screening because of the vast complexity of compound compositions, and thus a library reconstruction procedure is necessary before screening. (2) The traditional mode of “screening single compound” could be improved to “screening single compound, drug combination and multicomponent interaction” due to the fact that herbal medicines work by integrative effects of multi-components rather than single effective constituents. Based on the two concepts, we established a novel strategy aiming to make screening easier and deeper. Using thrombin as the model enzyme, we firstly uncovered the minor lead compounds, potential drug combinations and multicomponent interactions in an herbal medicine of Dan-Qi pair, showing a significant advantage over previous methods. This strategy was expected to be a new and promising mode for investigation of herbal medicines.
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Zhong HJ, Lee BR, Boyle JW, Wang W, Ma DL, Hong Chan PW, Leung CH. Structure-based screening and optimization of cytisine derivatives as inhibitors of the menin-MLL interaction. Chem Commun (Camb) 2016; 52:5788-91. [PMID: 27004852 DOI: 10.1039/c6cc01079b] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The natural product-like compound 1 was identified as a direct inhibitor of the menin-MLL interaction by in silico screening. Structure-based optimization furnished analogue 1a, which showed significantly higher potency than both the lead structure 1 and the reference compound MI-2.
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Affiliation(s)
- Hai-Jing Zhong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
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30
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Wu B, Song HP, Zhou X, Liu XG, Gao W, Dong X, Li HJ, Li P, Yang H. Screening of minor bioactive compounds from herbal medicines by in silico docking and the trace peak exposure methods. J Chromatogr A 2016; 1436:91-9. [DOI: 10.1016/j.chroma.2016.01.062] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 01/09/2016] [Accepted: 01/26/2016] [Indexed: 01/14/2023]
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Daniel Phillips P, Andersen T, M. McDougal O. Assessing the utility and limitations of high throughput virtual screening. AIMS MOLECULAR SCIENCE 2016. [DOI: 10.3934/molsci.2016.2.238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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32
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In silico target fishing and pharmacological profiling for the isoquinoline alkaloids of Macleaya cordata (Bo Luo Hui). Chin Med 2015; 10:37. [PMID: 26691584 PMCID: PMC4683977 DOI: 10.1186/s13020-015-0067-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 11/10/2015] [Indexed: 01/01/2023] Open
Abstract
Background Some isoquinoline alkaloids from Macleaya cordata (Willd). R. Br. (Bo Luo Hui) exhibited antibacterial, antiparasitic, antitumor, and analgesic effects. The targets of these isoquinoline alkaloids are undefined. This study aims to investigate the compound–target interaction network and potential pharmacological actions of isoquinoline alkaloids of M. cordata by reverse pharmacophore database screening. Methods The targets of 26 isoquinoline alkaloids identified from M. cordata were predicted by a pharmacophore-based target fishing approach. Discovery Studio 3.5 and two pharmacophore databases (PharmaDB and HypoDB) were employed for the target profiling. A compound–target interaction network of M. cordata was constructed and analyzed by Cytoscape 3.0. Results Thirteen of the 65 predicted targets identified by PharmaDB were confirmed as targets by HypoDB screening. The targets in the interaction network of M. cordata were involved in cancer (31 targets), microorganisms (12 targets), neurodegeneration (10 targets), inflammation and autoimmunity (8 targets), parasitosis (5 targets), injury (4 targets), and pain (3 targets). Dihydrochelerythrine (C6) was found to hit 23 fitting targets. Macrophage migration inhibitory factor (MIF) hits 15 alkaloids (C1–2, C11–16, C19–25) was the most promising target related to cancer. Conclusion Through in silico target fishing, the anticancer, anti-inflammatory, and analgesic effects of M. cordata were the most significant among many possible activities. The possible anticancer effects were mainly contributed by the isoquinoline alkaloids as active components.
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Wu PF, Chiu CC, Chen CY, Wang HMD. 7-Hydroxydehydronuciferine induces human melanoma death via triggering autophagy and apoptosis. Exp Dermatol 2015; 24:930-5. [DOI: 10.1111/exd.12805] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2015] [Indexed: 12/31/2022]
Affiliation(s)
- Pei-Fang Wu
- Department of Fragrance and Cosmetic Science; Kaohsiung Medical University; Kaohsiung Taiwan, ROC
| | - Chien-Chih Chiu
- Department of Biotechnology; Kaohsiung Medical University; Kaohsiung Taiwan, ROC
| | - Chung-Yi Chen
- School of Medical and Health Sciences; Fooyin University; Kaohsiung Taiwan, ROC
| | - Hui-Min David Wang
- Department of Fragrance and Cosmetic Science; Kaohsiung Medical University; Kaohsiung Taiwan, ROC
- Graduate Institute of Natural Products; Kaohsiung Medical University; Kaohsiung Taiwan, ROC
- Center for Stem Cell Research; Kaohsiung Medical University; Kaohsiung Taiwan, ROC
- Department of Marine Biotechnology and Resources; National Sun Yat-Sen University; Kaohsiung Taiwan, ROC
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Modelling the Transport of Nanoparticles under Blood Flow using an Agent-based Approach. Sci Rep 2015; 5:10649. [PMID: 26058969 PMCID: PMC4462051 DOI: 10.1038/srep10649] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 03/16/2015] [Indexed: 01/18/2023] Open
Abstract
Blood-mediated nanoparticle delivery is a new and growing field in the development of therapeutics and diagnostics. Nanoparticle properties such as size, shape and surface chemistry can be controlled to improve their performance in biological systems. This enables modulation of immune system interactions, blood clearance profile and interaction with target cells, thereby aiding effective delivery of cargo within cells or tissues. Their ability to target and enter tissues from the blood is highly dependent on their behaviour under blood flow. Here we have produced an agent-based model of nanoparticle behaviour under blood flow in capillaries. We demonstrate that red blood cells are highly important for effective nanoparticle distribution within capillaries. Furthermore, we use this model to demonstrate how nanoparticle size can selectively target tumour tissue over normal tissue. We demonstrate that the polydispersity of nanoparticle populations is an important consideration in achieving optimal specificity and to avoid off-target effects. In future this model could be used for informing new nanoparticle design and to predict general and specific uptake properties under blood flow.
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Datta C, Das D, Mondal P, Chakraborty B, Sengupta M, Bhattacharjee CR. Novel water soluble neutral vanadium(IV)-antibiotic complex: Antioxidant, immunomodulatory and molecular docking studies. Eur J Med Chem 2015; 97:214-24. [PMID: 25982330 DOI: 10.1016/j.ejmech.2015.05.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 03/11/2015] [Accepted: 05/04/2015] [Indexed: 11/27/2022]
Abstract
A novel water soluble five coordinate oxovanadium(IV) complex, [VO(C16H15N4O8S)HSO4] incorporating cefuroxime, a cephalosporin group of antibiotic have been prepared from an interaction of vanadyl sulfate and cefuroxime in aqueous solution. The compound was characterized by Fourier transform infrared spectroscopy (FTIR), CHN microanalyses, ultraviolet-visible spectroscopy (UV-Vis), fast atom bombardment (FAB) mass spectrometry and thermogravimetric analysis (TGA). Density Functional Theory (DFT) computation using Gaussian 09 program at B3LYP level revealed a distorted square pyramidal energy optimized geometry for the vanadyl(IV) complex. The molecular docking studies show that the interaction between the vanadium complex and protein receptor, clathrin is dominated by hydrophobic forces. The experimental (1)H nuclear magnetic resonance (NMR) features of the analogous Zn(II) complex matched well with the theoretically computed values further affirming the distorted square pyramidal geometry for the vanadyl(IV) complex. Cyclic voltammetry revealed a metal centered single-electron oxidation-reduction response for VO(IV)/VO(V) couple. The antioxidant activity of the vanadium(IV)-complex vis-à-vis the antibiotic has been assessed by 1,1-diphenyl-2-picrylhydrazyl (DPPH) method. The vanadium complex showed comparatively better radical scavenging ability compared to the antibiotic cefuroxime. The antimicrobial activity of the compound has been assayed for five different microbial strains using minimum inhibitory concentration (MIC) method. Immunomodulatory studies carried out using phagocytosis index, myeloperoxidase release and cytokine assay indicated the vanadium(IV)-complex to be immunosuppressant. The cytotoxicity of the compound was evaluated by MTT (3-(4, 5-dimethyl thiazol-2-yl)-2, 5-diphenyl tetrazolium bromide) reduction assay.
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Affiliation(s)
- Chitraniva Datta
- Department of Chemistry, Assam University, Silchar 788011, Assam, India
| | - Dharitri Das
- Department of Chemistry, Assam University, Silchar 788011, Assam, India
| | - Paritosh Mondal
- Department of Chemistry, Assam University, Silchar 788011, Assam, India
| | | | - Mahuya Sengupta
- Department of Biotechnology, Assam University, Silchar 788011, Assam, India
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Parrino B, Carbone A, Di Vita G, Ciancimino C, Attanzio A, Spanò V, Montalbano A, Barraja P, Tesoriere L, Livrea MA, Diana P, Cirrincione G. 3-[4-(1H-indol-3-yl)-1,3-thiazol-2-yl]-1H-pyrrolo[2,3-b]pyridines, nortopsentin analogues with antiproliferative activity. Mar Drugs 2015; 13:1901-24. [PMID: 25854642 PMCID: PMC4413193 DOI: 10.3390/md13041901] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 03/22/2015] [Accepted: 03/25/2015] [Indexed: 12/04/2022] Open
Abstract
A new series of nortopsentin analogues, in which the imidazole ring of the natural product was replaced by thiazole and the indole unit bound to position 2 of the thiazole ring was substituted by a 7-azaindole moiety, was efficiently synthesized. Two of the new nortopsentin analogues showed good antiproliferative effect against the totality of the NCI full panel of human tumor cell lines (~60) having GI50 values ranging from low micromolar to nanomolar level. The mechanism of the antiproliferative effect of these derivatives, investigated on human hepatoma HepG2 cells, was pro-apoptotic, being associated with externalization of plasma membrane phosphatidylserine and mitochondrial dysfunction. Moreover, the compounds induced a concentration-dependent accumulation of cells in the subG0/G1phase, while confined viable cells in G2/M phase.
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Affiliation(s)
- Barbara Parrino
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
| | - Anna Carbone
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
| | - Gloria Di Vita
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
| | - Cristina Ciancimino
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
| | - Alessandro Attanzio
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
| | - Virginia Spanò
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
| | - Alessandra Montalbano
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
| | - Paola Barraja
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
| | - Luisa Tesoriere
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
| | - Maria Antonia Livrea
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
| | - Patrizia Diana
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
| | - Girolamo Cirrincione
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, STEBICEF, via Archirafi 32, 90123 Palermo, Italy.
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Bilyi AK, Antypenko LM, Ivchuk VV, Kamyshnyi OM, Polishchuk NM, Kovalenko SI. 2-Heteroaryl-[1,2,4]triazolo[1,5-c]quinazoline-5(6 H)-thiones and Their S-Substituted Derivatives: Synthesis, Spectroscopic Data, and Biological Activity. Chempluschem 2015; 80:980-989. [DOI: 10.1002/cplu.201500051] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 02/12/2015] [Indexed: 11/05/2022]
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38
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Niazi S, Purohit M. Rational design of promiscuous binding modulators of p53 inducing E3(Ub)-ligases (Mdm2 and Pirh2) as anticancer agents: an in silico approach. MEDCHEMCOMM 2015. [DOI: 10.1039/c5md00319a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Twelve promiscuous binding p53 inducing E3(Ub) ligases (Mdm2 and Pirh2) hit candidates have been identified by structure based virtual screening.
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Affiliation(s)
- Sarfaraj Niazi
- Department of Pharmaceutical Chemistry
- JSS College of Pharmacy
- JSS University
- Mysuru-570015
- India
| | - Madhusudan Purohit
- Department of Pharmaceutical Chemistry
- JSS College of Pharmacy
- JSS University
- Mysuru-570015
- India
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39
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Zhong Z, Liu LJ, Dong ZQ, Lu L, Wang M, Leung CH, Ma DL, Wang Y. Structure-based discovery of an immunomodulatory inhibitor of TLR1–TLR2 heterodimerization from a natural product-like database. Chem Commun (Camb) 2015; 51:11178-81. [DOI: 10.1039/c5cc02728d] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We report herein the identification of an immunomodulatory natural product-like compound 1 as a direct inhibitor of TLR1–TLR2 heterodimerization.
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Affiliation(s)
- Zhangfeng Zhong
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Li-Juan Liu
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Zhi-Qiang Dong
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Lihua Lu
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Modi Wang
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Dik-Lung Ma
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
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40
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Huang CY, Chen LH, Huang HY, Kao FS, Lee YT, Selvaraju M, Sun CM, Chen HM. Parallel synthesis and biological evolution of quinic acid derivatives as immuno-suppressing agents against T-cell receptors. RSC Adv 2015. [DOI: 10.1039/c5ra06095h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A parallel synthesis of quinic acid derivatives is explored and their biological evolution against T-cells is studied.
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Affiliation(s)
- Chih-Yu Huang
- National Applied Research Laboratories
- National Nano Device Laboratories
- Biomedical Group
- Hsinchu 300-10
- Taiwan
| | - Li-Hsun Chen
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300
- Taiwan
| | - Hsuan-Yu Huang
- National Applied Research Laboratories
- National Nano Device Laboratories
- Biomedical Group
- Hsinchu 300-10
- Taiwan
| | - Feng-Sheng Kao
- National Applied Research Laboratories
- National Nano Device Laboratories
- Biomedical Group
- Hsinchu 300-10
- Taiwan
| | - Yun-Ta Lee
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300
- Taiwan
- Department of Medicinal and Applied Chemistry
| | | | - Chung-Ming Sun
- Department of Applied Chemistry
- National Chiao-Tung University
- Hsinchu 300
- Taiwan
- Department of Medicinal and Applied Chemistry
| | - Hueih-Min Chen
- National Applied Research Laboratories
- National Nano Device Laboratories
- Biomedical Group
- Hsinchu 300-10
- Taiwan
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