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Kang N, Qiu WJ, Wang B, Tang DF, Shen XY. Role of hemoglobin alpha and hemoglobin beta in non-small-cell lung cancer based on bioinformatics analysis. Mol Carcinog 2022; 61:587-602. [PMID: 35394695 DOI: 10.1002/mc.23404] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 12/17/2021] [Accepted: 01/03/2022] [Indexed: 11/08/2022]
Abstract
The differentially expressed genes (DEGs) were identified and screened differentially in non-small-cell lung cancer (NSCLC) using information from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus databases, and the correlation of DEGs in protein interaction, function, and pathway enrichment were analyzed to search for new biomarkers and potential therapeutic targets for NSCLC. Protein-protein interaction network (PPI) analysis showed that CDK1 and GNGT1 were the most significantly upregulated hub nodes, while FPR2 was the most significantly downregulated. Gene Ontology enrichment analysis showed that upregulated DEGs were significantly enriched in protein heterodimerization activity and other functions, while downregulated DEGs were enriched in functions such as heparin-binding. Kyoto Encyclopedia of Genes and Genomes pathway analysis showed that upregulation of DEGs were significantly associated with neuroactive ligand-receptor interaction pathways, while downregulation of DEGs were significantly associated with malaria pathways. According to the analysis results, we identified hemoglobin alpha (HBA) and hemoglobin beta (HBB) as the genes of interest for further study. Through tissue level and cell level experiments, we found that the expressions of HBA and HBB in NSCLC tissues were significantly lower than those in paracancerous tissues, and downregulation of HBA and HBB could significantly affect the proliferation ability of NSCLC cells. In addition, we also found that changes in HBA and HBB may affect NSCLC cells through the p38/MAPK pathway and JNK pathway, and ultimately affect the occurrence and development of NSCLC.
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Affiliation(s)
- Ning Kang
- Department of Thoracic Surgery, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
| | - Wen-Jia Qiu
- Department of Respiration, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
| | - Bin Wang
- Department of Thoracic Surgery, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
| | - Dong-Fang Tang
- Department of Thoracic Surgery, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
| | - Xiao-Yong Shen
- Department of Thoracic Surgery, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
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Kato H, Shimizu M, Urano T. Chemical map-based prediction of nucleosome positioning using the Bioconductor package nuCpos. BMC Bioinformatics 2021; 22:322. [PMID: 34120589 PMCID: PMC8201924 DOI: 10.1186/s12859-021-04240-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 06/06/2021] [Indexed: 11/10/2022] Open
Abstract
Background Assessing the nucleosome-forming potential of specific DNA sequences is important for understanding complex chromatin organization. Methods for predicting nucleosome positioning include bioinformatics and biophysical approaches. An advantage of bioinformatics methods, which are based on in vivo nucleosome maps, is the use of natural sequences that may contain previously unknown elements involved in nucleosome positioning in vivo. The accuracy of such prediction attempts reflects the genomic coordinate resolution of the nucleosome maps applied. Nucleosome maps are constructed using micrococcal nuclease digestion followed by high-throughput sequencing (MNase-seq). However, as MNase has a strong preference for A/T-rich sequences, MNase-seq may not be appropriate for this purpose. In addition to MNase-seq-based maps, base pair-resolution chemical maps of in vivo nucleosomes from three different species (budding and fission yeasts, and mice) are currently available. However, these chemical maps have yet to be integrated into publicly available computational methods. Results We developed a Bioconductor package (named nuCpos) to demonstrate the superiority of chemical maps in predicting nucleosome positioning. The accuracy of chemical map-based prediction in rotational settings was higher than that of the previously developed MNase-seq-based approach. With our method, predicted nucleosome occupancy reasonably matched in vivo observations and was not affected by A/T nucleotide frequency. Effects of genetic alterations on nucleosome positioning that had been observed in living yeast cells could also be predicted. nuCpos calculates individual histone binding affinity (HBA) scores for given 147-bp sequences to examine their suitability for nucleosome formation. We also established local HBA as a new parameter to predict nucleosome formation, which was calculated for 13 overlapping nucleosomal DNA subsequences. HBA and local HBA scores for various sequences agreed well with previous in vitro and in vivo studies. Furthermore, our results suggest that nucleosomal subsegments that are disfavored in different rotational settings contribute to the defined positioning of nucleosomes. Conclusions Our results demonstrate that chemical map-based statistical models are beneficial for studying nucleosomal DNA features. Studies employing nuCpos software can enhance understanding of chromatin regulation and the interpretation of genetic alterations and facilitate the design of artificial sequences. Supplementary Information The online version contains supplementary material available at 10.1186/s12859-021-04240-2.
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Affiliation(s)
- Hiroaki Kato
- Department of Biochemistry, Shimane University School of Medicine, 89-1 Enya-cho, Izumo, Shimane, 693-8501, Japan.
| | - Mitsuhiro Shimizu
- Department of Chemistry, Graduate School of Science and Engineering, Program in Chemistry and Life Science, School of Science and Engineering, Meisei University, 2-1-1 Hodokubo, Hino, Tokyo, 191-8506, Japan
| | - Takeshi Urano
- Department of Biochemistry, Shimane University School of Medicine, 89-1 Enya-cho, Izumo, Shimane, 693-8501, Japan
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Eggel M, Würbel H. Internal consistency and compatibility of the 3Rs and 3Vs principles for project evaluation of animal research. Lab Anim 2021; 55:233-243. [PMID: 33215575 PMCID: PMC8182293 DOI: 10.1177/0023677220968583] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 10/04/2020] [Indexed: 12/27/2022]
Abstract
Using animals for research raises ethical concerns that are addressed in project evaluation by weighing expected harm to animals against expected benefit to society. A harm-benefit analysis (HBA) relies on two preconditions: (a) the study protocol is scientifically suitable and (b) the use of (sentient) animals and harm imposed on them are necessary for achieving the study's aims. The 3Rs (Replace, Reduce and Refine) provide a guiding principle for evaluating whether the use of animals, their number and the harm imposed on them are necessary. A similar guiding principle for evaluating whether a study protocol is scientifically suitable has recently been proposed: the 3Vs principle referring to the three main aspects of scientific validity in animal research (construct, internal and external validity). Here, we analyse the internal consistency and compatibility of these two principles, address conflicts within and between the 3Rs and 3Vs principles and discuss their implications for project evaluation. We show that a few conflicts and trade-offs exist, but that these can be resolved either by appropriate study designs or by ethical deliberation in the HBA. In combination, the 3Vs, 3Rs and the HBA thus offer a coherent framework for a logically structured evaluation procedure to decide about the legitimacy of animal research projects.
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Affiliation(s)
- Matthias Eggel
- Institute for Biomedical Ethics and History of
Medicine, University of Zurich, Switzerland
| | - Hanno Würbel
- Animal Welfare Division, Veterinary Public Health
Institute University of Bern, Switzerland
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Goswami D, Mahapatra AD, Banerjee S, Kar A, Ojha D, Mukherjee PK, Chattopadhyay D. Boswellia serrata oleo-gum-resin and β-boswellic acid inhibits HSV-1 infection in vitro through modulation of NF-кB and p38 MAP kinase signaling. Phytomedicine 2018; 51:94-103. [PMID: 30466633 DOI: 10.1016/j.phymed.2018.10.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 10/12/2018] [Accepted: 10/14/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Herpes Simplex Virus (HSV), a highly contagious pathogen, is responsible for causing lifelong oral to genital infection in human. Boswellia serrata oleo-gum-resin possesses a strong traditional background of treating diverse skin ailments including infection but its effect on HSV-1 has not been examined yet. PURPOSE To exploit its potential, we aimed to explore the antiviral activity of methanol extract of B. serrata oleo-gum-resin (BSE) and one of its major constituent β-boswellic acid (BA) against HSV-1 along with the underlying mechanism of action involved. METHODS BSE was subjected to RP-HPLC analysis to quantify the active constituent. Cytotoxicity (CC50) and antiviral activity were evaluated by MTT and plaque reduction assay, followed by the determination of median effective concentration (EC50). The mode of antiviral activity was assessed by time-of-addition assay and confirmed by reverse transcriptase-PCR (RT-PCR). Further, the expressions of various cytokines were measured by RT-PCR, while the proteins by Western blot. RESULTS BSE and BA potently inhibited wild-type and a clinical isolate of HSV-1 (EC50 5.2-6.2 and 12.1-14.63 μg/ml), with nearly-complete inhibition (EC99) at 10 and 30 μg/ml, respectively. The inhibitory effect was significant at 1 h post-infection and effective up to 4 h. Based on target analysis we examined the inhibition of NF-κB, essential for virus replication, and observed significant down-regulation of NF-κB, and p38 MAP-kinase activation, with reduced expression of tumor necrosis factor (TNF)-α, Interleukin (IL)-1β and IL-6, involved in scheming NF-κB signaling. CONCLUSION Thus, our results support the ethnomedicinal use of BSE in skin infection by inhibiting HSV-1 through the modulation of NF-κB and p38 MAPK pathway.
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Affiliation(s)
- Debayan Goswami
- ICMR Virus Unit, ID and BG Hospital, General Block 4, 57 Dr. Suresh Chandra Banerjee Road, Beliaghata, Kolkata 700010, India.; School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Ananya Das Mahapatra
- ICMR Virus Unit, ID and BG Hospital, General Block 4, 57 Dr. Suresh Chandra Banerjee Road, Beliaghata, Kolkata 700010, India
| | - Subhadip Banerjee
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Amit Kar
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Durbadal Ojha
- ICMR Virus Unit, ID and BG Hospital, General Block 4, 57 Dr. Suresh Chandra Banerjee Road, Beliaghata, Kolkata 700010, India
| | - Pulok K Mukherjee
- School of Natural Product Studies, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Debprasad Chattopadhyay
- ICMR Virus Unit, ID and BG Hospital, General Block 4, 57 Dr. Suresh Chandra Banerjee Road, Beliaghata, Kolkata 700010, India..
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Oliver A, Hunter CA, Prohens R, Rosselló JL. An improved methodology to compute surface site interaction points using high density molecular electrostatic potential surfaces. J Comput Chem 2018; 39:2371-2377. [PMID: 30351455 DOI: 10.1002/jcc.25574] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 08/06/2018] [Accepted: 08/07/2018] [Indexed: 01/19/2023]
Abstract
The theoretical calculation of Surface Site Interaction Points (SSIP) has been used successfully in some applications in the solid and liquid phase. In this work we propose a new set of optimizations for the search of SSIP using the Molecular Electrostatic Potential Surfaces (MEPS) calculated with Density Functional Theory and B3LYP/6-31*G basis set. The measures that have been implemented are based on the search for the best agreement between experimental H-bond donor and acceptor parameters (α and β) and the MEPS extremes exploring a range of electron density levels. Additionally, a parameterization as a function of atom types has been performed. The results show that the MEPS calculated at 0.01 au electron density level slightly improves the correlation with experimental data in comparison with the calculation over other density values. This fact is related to the bigger contribution of local electrostatics at higher density levels. The refinement has provided significant improvements to the correlation between theoretical and experimental data. Moreover, the proposed calculation over 0.01 au is six times faster on average than the computation at 0.002 au. The proposed methodology has been developed with the purpose to obtain high precision SSIP in a fast way and to improve their applications in virtual cocrystal screening, calculation of free energies in solution and molecular docking. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Antoni Oliver
- Department of Physics, University of the Balearic Islands, Cra. de Valldemossa, km 7.5, 07122, Spain
| | - Christopher A Hunter
- Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, United Kingdom
| | - Rafel Prohens
- Unitat de Polimorfisme i Calorimetria, Centres Científics i Tecnològics, Universitat de Barcelona, Baldiri Reixac, 10, 08028, Barcelona, Spain
| | - Josep Lluis Rosselló
- Department of Physics, University of the Balearic Islands, Cra. de Valldemossa, km 7.5, 07122, Spain
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Mishra P, Kesar S, Paliwal SK, Chauhan M, Madan K. In-Silico Screening of Ligand Based Pharmacophore, Database Mining and Molecular Docking on 2, 5-Diaminopyrimidines Azapurines as Potential Inhibitors of Glycogen Synthase Kinase-3β. Cent Nerv Syst Agents Med Chem 2018; 18:150-158. [PMID: 29848281 DOI: 10.2174/1871524918666180530074116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 05/14/2018] [Accepted: 05/17/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Glycogen synthase kinase-3β plays a significant role in the regulation of various pathological pathways relating to the Central Nervous System (CNS). Dysregulation of Glycogen synthase kinase 3 (GSK-3) activity gives rise to numerous neuroinflammation and neurodegenerative related disorders that affect the whole central nervous system. OBJECTIVE By the sequential application of in-silico tools, efforts have been attempted to design the novel GSK-3β inhibitors. METHOD Owing to the potential role of GSK-3β in nervous disorders, we have attempted to develop the quantitative four featured pharmacophore model comprising two Hydrogen Bond Acceptors (HBA), one Ring Aromatic (RA), and one Hydrophobe (HY), which were further affirmed by costfunction analysis, rm2 matrices, internal and external test set validation and Guner-Henry (GH) scoring analysis. Validated pharmacophoric model was used for virtual screening and out of 345 compounds, two potential virtual hits were finalized that were on the basis of fit value, estimated activity and Lipinski's violation. The chosen compounds were subjected to dock within the active site of GSK-3β. RESULT Four essential features, i.e., two Hydrogen Bond Acceptors (HBA), one Ring Aromatic (RA), and one Hydrophobe (HY), were subjected to build the pharmacophoric model and showed good correlation coefficient, RMSD and cost difference values of 0.91, 0.94 and 42.9 respectively and further model was validated employing cost-function analysis, rm2-matrices, internal and external test set prediction with r2 value of 0.77 and 0.84. Docked conformations showed potential interactions in between the features of the identified hits (NCI 4296, NCI 3034) and the amino acids present in the active site. CONCLUSION In line with the overhead discussion, and through our stepwise computational approaches, we have identified novel, structurally diverse glycogen synthase kinase inhibitors.
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Affiliation(s)
- Pooja Mishra
- Department of Pharmacy, Banasthali University, Banasthali, Rajasthan 304022, India
| | - Seema Kesar
- Department of Pharmacy, Banasthali University, Banasthali, Rajasthan 304022, India
| | - Sarvesh K Paliwal
- Department of Pharmacy, Banasthali University, Banasthali, Rajasthan 304022, India
| | - Monika Chauhan
- Department of Pharmacy, Banasthali University, Banasthali, Rajasthan 304022, India
| | - Kirtika Madan
- Department of Pharmacy, Banasthali University, Banasthali, Rajasthan 304022, India
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7
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Gilkey DP, Bigelow PL, Herron RE, Greenstein S, Chadwick BR, Fowler JK. The HomeSafe Pilot Program: a novel approach to injury prevention in residential construction. Work 2014; 10:167-80. [PMID: 24441303 DOI: 10.3233/wor-1998-10208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Workers in the residential construction industry face unacceptably high risk of injury, disability and death. Attempts to implement comprehensive health and safety programs in this industry have met with little success. The HomeSafe Pilot Program is a novel residential construction safety program developed and sponsored by the Occupational Safety and Health Administration (OSHA) Region VIII and the Home Builders Association of Metropolitan Denver (HBA). Test subjects represent over 7475 persons employed in residential construction in the six county Denver Metro area of Colorado. The HomeSafe Pilot Program includes primary behavioral, engineering and administrative interventions to improve safe work practices in residential construction. It has some unique features of brevity, specificity and incentives not seen elsewhere in the construction industry. Its overall goal is to guide residential construction companies along a path of progressive development of comprehensive safety and health programs. The HomeSafe Pilot Program is introduced and compared to other safety and health program models developed by OSHA and the HBA. This study began in January 1997 and will continue through the millennium.
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Affiliation(s)
- D P Gilkey
- Department of Environmental Health, Occupational Safety and Health Section, Colorado State University, 104 Environmental Health Building, Ft. Collins, CO 80523-1676, USA
| | - P L Bigelow
- Department of Environmental Health, Occupational Safety and Health Section, Colorado State University, 104 Environmental Health Building, Ft. Collins, CO 80523-1676, USA
| | - R E Herron
- Department of Environmental Health, Occupational Safety and Health Section, Colorado State University, 104 Environmental Health Building, Ft. Collins, CO 80523-1676, USA
| | - S Greenstein
- Department of Environmental Health, Occupational Safety and Health Section, Colorado State University, 104 Environmental Health Building, Ft. Collins, CO 80523-1676, USA
| | - B R Chadwick
- OSHA Region VIII, 1999 Broadway # 1690, Denver, CO 80202-6716, USA
| | - J K Fowler
- Home Builders Association of Metropolitan Denver, 1400 S. Emerson St., Denver, CO 80210, USA
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Eibl C, Munoz L, Tomassoli I, Stokes C, Papke RL, Gündisch D. The 3,7-diazabicyclo[3.3.1]nonane scaffold for subtype selective nicotinic acetylcholine receptor ligands. Part 2: carboxamide derivatives with different spacer motifs. Bioorg Med Chem 2013; 21:7309-29. [PMID: 24145137 DOI: 10.1016/j.bmc.2013.09.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Revised: 09/15/2013] [Accepted: 09/24/2013] [Indexed: 11/30/2022]
Abstract
3,7-Diazabicyclo[3.3.1]nonane (bispidine) based nicotinic acetylcholine receptor (nAChR) ligands have been synthesized and evaluated for nAChRs interaction. Diverse spacer motifs were incorporated between the hydrogen bond acceptor (HBA) part and a variety of substituted (hetero)aryl moieties. Bispidine carboxamides bearing spacer motifs often showed high affinity in the low nanomolar range and selectivity for the α4β2(∗) nAChR. Compounds 15, 25, and 47 with Ki values of about 1 nM displayed the highest affinities for α4β2(∗) nAChR. All evaluated compounds are partial agonists or antagonists at α4β2(∗), with reduced or no effects on α3β4(∗) with the exception of compound 15 (agonist), and reduced or no effect at α7 and muscle subtypes.
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Affiliation(s)
- Christoph Eibl
- Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany; Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, 34 Rainbow Drive, Hilo, HI 96720, USA
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Eibl C, Tomassoli I, Munoz L, Stokes C, Papke RL, Gündisch D. The 3,7-diazabicyclo[3.3.1]nonane scaffold for subtype selective nicotinic acetylcholine receptor (nAChR) ligands. Part 1: the influence of different hydrogen bond acceptor systems on alkyl and (hetero)aryl substituents. Bioorg Med Chem 2013; 21:7283-308. [PMID: 24156938 PMCID: PMC4519239 DOI: 10.1016/j.bmc.2013.09.059] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Revised: 09/15/2013] [Accepted: 09/24/2013] [Indexed: 12/21/2022]
Abstract
3,7-Diazabicyclo[3.3.1]nonane is a naturally occurring scaffold interacting with nicotinic acetylcholine receptors (nAChRs). When one nitrogen of the 3,7-diazabicyclo[3.3.1]nonane scaffold was implemented in a carboxamide motif displaying a hydrogen bond acceptor (HBA) functionality, compounds with higher affinities and subtype selectivity for α4β2(∗) were obtained. The nature of the HBA system (carboxamide, sulfonamide, urea) had a strong impact on nAChR interaction. High affinity ligands for α4β2(∗) possessed small alkyl chains, small un-substituted hetero-aryl groups or para-substituted phenyl ring systems along with a carboxamide group. Electrophysiological responses of selected 3,7-diazabicyclo[3.3.1]nonane derivatives to Xenopus oocytes expressing various nAChR subtypes showed diverse activation profiles. Compounds with strongest agonistic profiles were obtained with small alkyl groups whereas a shift to partial agonism/antagonism was observed for aryl substituents.
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Affiliation(s)
- Christoph Eibl
- Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-533121 Bonn, Germany
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai’i at Hilo, 34 Rainbow Drive, Hilo, HI 96720, USA
| | - Isabelle Tomassoli
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai’i at Hilo, 34 Rainbow Drive, Hilo, HI 96720, USA
| | - Lenka Munoz
- Department of Pharmacology, School of Medical Sciences, The University of Sydney, NSW 2006, Australia
| | - Clare Stokes
- Department of Pharmacology and Therapeutics, College of Medicine, University of Florida, Gainesville, FL32610, USA
| | - Roger L. Papke
- Department of Pharmacology and Therapeutics, College of Medicine, University of Florida, Gainesville, FL32610, USA
| | - Daniela Gündisch
- Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-533121 Bonn, Germany
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai’i at Hilo, 34 Rainbow Drive, Hilo, HI 96720, USA
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De Luca L, Ferro S, Damiano FM, Supuran CT, Vullo D, Chimirri A, Gitto R. Structure-based screening for the discovery of new carbonic anhydrase VII inhibitors. Eur J Med Chem 2013; 71:105-11. [PMID: 24287559 DOI: 10.1016/j.ejmech.2013.10.071] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 10/28/2013] [Accepted: 10/29/2013] [Indexed: 12/31/2022]
Abstract
Among the different mammalian isoforms of Carbonic Anhydrase, the hCA VII is mainly expressed in the brain where it is involved in several neurological diseases. Thereby hCA VII has been validated as an attractive target for the discovery of selective inhibitors for the treatment of epilepsy and neurological pain. To identify new chemical entities as carbonic anhydrase inhibitors (CAIs) targeting hCA VII, we used a structure-based approach. By means of LigandScout software we built pharmacophore models from crystal structures of two well-known CAIs in complex with hCA VII. A merged pharmacophore hypothesis has been obtained. Subsequently, a focused library of compounds was screened against pharmacophore model and the most interesting hits were docked into the crystal structure of hCA VII. As a result, we identified new compounds displaying significant CA inhibitory effects in the nanomolar range.
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Affiliation(s)
- Laura De Luca
- Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute, Università di Messina, Viale Annunziata, I-98168 Messina, Italy.
| | - Stefania Ferro
- Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute, Università di Messina, Viale Annunziata, I-98168 Messina, Italy
| | - Francesca M Damiano
- Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute, Università di Messina, Viale Annunziata, I-98168 Messina, Italy
| | - Claudiu T Supuran
- Università degli Studi di Firenze, Dipartimento NEUROFARBA, Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino, Florence, Italy
| | - Daniela Vullo
- Università degli Studi di Firenze, Dipartimento NEUROFARBA, Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino, Florence, Italy
| | - Alba Chimirri
- Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute, Università di Messina, Viale Annunziata, I-98168 Messina, Italy
| | - Rosaria Gitto
- Dipartimento di Scienze del Farmaco e dei Prodotti per la Salute, Università di Messina, Viale Annunziata, I-98168 Messina, Italy
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Vasileiou I, Katsargyris A, Theocharis S, Giaginis C. Current clinical status on the preventive effects of cranberry consumption against urinary tract infections. Nutr Res 2013; 33:595-607. [PMID: 23890348 DOI: 10.1016/j.nutres.2013.05.018] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Revised: 05/26/2013] [Accepted: 05/30/2013] [Indexed: 11/30/2022]
Abstract
Urinary tract infections (UTIs) represent a common and quite costly medical problem, primarily affecting the female population which may be due to a shorter urethra. The bacterium Escherichia coli are mainly responsible for most uncomplicated UTIs. Cranberry antibacterial effects have widely been studied in vitro, and laboratory and clinical studies have also been performed to elucidate the mechanisms of cranberry actions and the clinical benefits of cranberry consumption against UTIs. The present review aimed to summarize the proposed mechanisms of cranberry actions against UTIs and the clinical trials that evaluated the efficacy of supplementing cranberry products in different subpopulations. Taking into consideration the existing data, cranberry consumption may prevent bacterial adherence to uroepithelial cells which reduces the development of UTI. Cranberry consumption could also decreasing UTI related symptoms by suppressing inflammatory cascades as an immunologic response to bacteria invasion. The existing clinical trials suggest that the beneficial effects of cranberry against UTIs seem to be prophylactic by preventing the development of infections; however, they exert low effectiveness in populations at increased risk for contracting UTIs. Additional well-designed, double-blind, placebo-controlled clinical trials that use standardized cranberry products are strongly justified in order to determine the efficiency of cranberry on the prevention of UTIs in susceptible populations.
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Affiliation(s)
- Ioanna Vasileiou
- Department of Food Science and Nutrition, University of the Aegean, Myrina, Lemnos, Greece
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