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Ferraro G, Tito G, Sciortino G, Garribba E, Merlino A. Stabilization and Binding of [V 4 O 12 ] 4- and Unprecedented [V 20 O 54 (NO 3 )] n- to Lysozyme upon Loss of Ligands and Oxidation of the Potential Drug V IV O(acetylacetonato) 2. Angew Chem Int Ed Engl 2023; 62:e202310655. [PMID: 37768728 DOI: 10.1002/anie.202310655] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 08/19/2023] [Revised: 09/28/2023] [Accepted: 09/28/2023] [Indexed: 09/29/2023]
Abstract
High-resolution crystal structures of lysozyme in the presence of the potential drug VIV O(acetylacetonato)2 under two different experimental conditions have been solved. The crystallographic study reveals the loss of the ligands, the oxidation of VIV to VV and the subsequent formation of adducts of the protein with two different polyoxidovanadates: [V4 O12 ]4- , which interacts with lysozyme non-covalently, and the unprecedented [V20 O54 (NO3 )]n- , which is covalenty bound to the side chain of an aspartate residue of symmetry related molecules.
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Affiliation(s)
- Giarita Ferraro
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126, Napoli, Italy
| | - Gabriella Tito
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126, Napoli, Italy
| | - Giuseppe Sciortino
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 16, Avinguda dels Països Catalans, 43007, Tarragona, Spain
| | - Eugenio Garribba
- Dipartimento di Medicina, Chirurgia e Farmacia, Università di Sassari, Viale San Pietro, I-07100, Sassari, Italy
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126, Napoli, Italy
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Ning S, Hua L, Ji Z, Fan D, Meng X, Li Z, Wang Q, Guo Z. Protein 4.1 family and ion channel proteins interact to regulate the process of heart failure in rats. Acta Histochem 2021; 123:151748. [PMID: 34271280 DOI: 10.1016/j.acthis.2021.151748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 02/06/2023]
Abstract
Heart failure (HF) is a major cause of death in cardiovascular diseases worldwide, and its molecular mechanisms and effective prevention strategies remain to be further studied. The myocardial cytoskeleton plays a pivotal role in many heart diseases. However, little is known about the function of the membrane cytoskeleton 4.1 protein family and related regulatory mechanisms in the pathogenesis of HF. In this study, we detected the localization and expression of the protein 4.1 family and ion channel proteins in a rat HF model induced by doxorubicin (DOX), and studied the interactions between them. Our results showed that compared with the control group, the HF group displayed an increased expression level of protein 4.1R and decreased levels of protein 4.1 G and 4.1 N. The Nav1.5 protein levels were significantly increased, while the SERCA2a and Cav1.2 protein levels were significantly decreased in the HF group. Furthermore, there is co-localization and interaction between protein 4.1R and Nav1.5, protein 4.1 G and SERCA2a, protein 4.1 N and Cav1.2, respectively. Taken together, the results indicated that the protein 4.1 family might be involved in the occurrence and development of HF through its interaction with ion channel proteins, suggesting that 4.1 proteins may serve as a novel therapeutic target for HF.
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Affiliation(s)
- Shuwei Ning
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China
| | - Lei Hua
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China
| | - Zhenyu Ji
- Henan Academy of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Dandan Fan
- Henan Academy of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Xiangguang Meng
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China
| | - Zhiying Li
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China
| | - Qian Wang
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China
| | - Zhikun Guo
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China; Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang, 453003, China.
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Zhou X, Zhang Z, Liang X. Regulatory Network Analysis to Reveal Important miRNAs and Genes in Non-Small Cell Lung Cancer. Cell J 2019; 21:459-466. [PMID: 31376328 PMCID: PMC6722447 DOI: 10.22074/cellj.2020.6281] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 12/01/2018] [Indexed: 12/14/2022]
Abstract
Objective Lung cancer has high incidence and mortality rate, and non-small cell lung cancer (NSCLC) takes up
approximately 85% of lung cancer cases. This study is aimed to reveal miRNAs and genes involved in the mechanisms
of NSCLC.
Materials and Methods In this retrospective study, GSE21933 (21 NSCLC samples and 21 normal samples),
GSE27262 (25 NSCLC samples and 25 normal samples), GSE43458 (40 NSCLC samples and 30 normal samples)
and GSE74706 (18 NSCLC samples and 18 normal samples) were searched from gene expression omnibus (GEO)
database. The differentially expressed genes (DEGs) were screened from the four microarray datasets using MetaDE
package, and then conducted with functional annotation using DAVID tool. Afterwards, protein-protein interaction
(PPI) network and module analyses were carried out using Cytoscape software. Based on miR2Disease and Mirwalk2
databases, microRNAs (miRNAs)-DEG pairs were selected. Finally, Cytoscape software was applied to construct
miRNA-DEG regulatory network.
Results Totally, 727 DEGs (382 up-regulated and 345 down-regulated) had the same expression trends in all of the
four microarray datasets. In the PPI network, TP53 and FOS could interact with each other and they were among
the top 10 nodes. Besides, five network modules were found. After construction of the miRNA-gene network, top 10
miRNAs (such as hsa-miR-16-5p, hsa-let-7b-5p, hsa-miR-15a-5p, hsa-miR-15b-5p, hsa-let-7a-5p and hsa-miR-34a-
5p) and genes (such as HMGA1, BTG2, SOD2 and TP53) were selected.
Conclusion These miRNAs and genes might contribute to the pathogenesis of NSCLC.
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Affiliation(s)
- Xingni Zhou
- Department of Oncology, Huashan Hospital of Fudan University, Shanghai, China
| | - Zhenghua Zhang
- Department of Clinical Oncology, Jing'an District Centre Hospital of Shanghai (Huashan Hospital, Fudan University, Jing'an Branch), Shanghai, China
| | - Xiaohua Liang
- Department of Oncology, Huashan Hospital of Fudan University, Shanghai, China.Electronic Address:
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Abstract
OBJECTIVES An association between root canal sealers and periapical lesions in primary dentition has been suggested, yet the chemical-protein interactions that may be involved in it have not been studied. The present study explored root sealer components' effect on periapical tissue proteins using bioinformatics tools. STUDY DESIGN For each chemical component of Endoflas F.S. root sealing material we identified the known and predicted target proteins, using STITCH (search tool for interactions of chemicals http://stitch.embl.de/ ). Identified target proteins were grouped into functional categories using the annotation clustering tool from DAVID, the Database for Annotation, Visualization and Integrated Discovery ( http://david.abcc.ncifcrf.gov/ ). STRING Protein-Protein Interaction network database identified associations between the proteins. RESULTS Sixteen proteins identified with STITCH served as input to DAVID annotation clustering tool. Only ZnO and Eugenol targeted proteins had statistically significant annotations. Gene Ontology terms of ZnO and Eugenol targeted proteins demonstrated that these proteins respond to mechanical stimulus and to oxidative stress. They highlight these proteins' role in the positive regulation of transcription, gene expression, cell proliferation and apoptosis, and their complementary role in the negative regulation of cell death. CONCLUSION When stimulated by Zinc Oxide, Eugenol and Calcium hydroxide, chemical-protein and subsequent protein-protein interactions result in cell proliferation in the periapical area. Our findings indicate that certain root sealers components may cause enlargement of the permanent tooth follicle. Dentists should be aware of this phenomenon and radiographically monitor root canal treated teeth until shedding.
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Pant A, Pasupureddy R, Pande V, Seshadri S, Dixit R, Pandey KC. Proteases in Mosquito Borne Diseases: New Avenues in Drug Development. Curr Top Med Chem 2017; 17:2221-2232. [PMID: 28137230 DOI: 10.2174/1568026617666170130122231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 09/12/2016] [Revised: 09/12/2016] [Accepted: 10/27/2016] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Mosquito borne diseases continue to propagate and cause millions of deaths annually. They are caused either by protozoan parasites such as Plasmodium, Toxoplasma or by flaviviruses including Dengue and Zika. Among the proteome of such parasitic organisms, proteases play essential roles in events such as host invasion, hemoglobin hydrolysis, replication and immune evasion. Plasmepsin V (PMV), an endoplasmic reticulum resident aspartic protease of Plasmodium spp., is involved in the export of ~400 proteins containing the conserved Plasmodium Export Element motif (PEXEL). Interactions and cleavage of PEXEL proteins by PM V is necessary for export to and across the parasitophorous vacuole membrane. Protease System: Similarly in flaviviruses, a two-component protease system consisting of nonstructural proteins, NS2B and NS3, interacts with other non-structural proteins and plays a major role in viral replication, polyprotein cleavage and virion particle assembly. Thus, proteases involved in indispensable roles in pathogen machinery can be considered as attractive drug targets. Inhibitors against proteases are being used in clinical trials for other communicable and non-communicable diseases. Currently, hydroxyethylamine based inhibitors targeting the catalytic site of PM V with picomolar inhibitory concentrations have been tested in vitro. CONCLUSION For recently characterized disease such as Zika, no known treatments exist while compound such as Policresulen has high affinity for Dengue NS2B/NS3 complex. Understanding proteases structure-function relationship and protease-inhibitor interactions can provide new insights for novel chemotherapeutic strategies.
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Affiliation(s)
- A Pant
- National Institute of Malaria Research, Dwarka Sector - 8, New Delhi - 110077, India,Department of Biotechnology, Kumaun University, Nainital, Uttarakhand – 263001, India
| | - R Pasupureddy
- National Institute of Malaria Research, Dwarka Sector - 8, New Delhi - 110077, India,Institute of Science, Nirma University, SG Highway, Ahmedabad, Gujarat - 382481, India
| | - V Pande
- Department of Biotechnology, Kumaun University, Nainital, Uttarakhand – 263001, India
| | - S Seshadri
- Institute of Science, Nirma University, SG Highway, Ahmedabad, Gujarat - 382481, India
| | - R Dixit
- National Institute of Malaria Research, Dwarka Sector - 8, New Delhi - 110077, India
| | - K C Pandey
- Department of Biochemistry, National Institute for Research in Environmental Health, Bhopal, MP - 462001, India
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Thakur HC, Singh M, Nagel-Steger L, Kremer J, Prumbaum D, Fansa EK, Ezzahoini H, Nouri K, Gremer L, Abts A, Schmitt L, Raunser S, Ahmadian MR, Piekorz RP. The centrosomal adaptor TACC3 and the microtubule polymerase chTOG interact via defined C-terminal subdomains in an Aurora-A kinase-independent manner. J Biol Chem 2013; 289:74-88. [PMID: 24273164 DOI: 10.1074/jbc.m113.532333] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The cancer-associated, centrosomal adaptor protein TACC3 (transforming acidic coiled-coil 3) and its direct effector, the microtubule polymerase chTOG (colonic and hepatic tumor overexpressed gene), play a crucial function in centrosome-driven mitotic spindle assembly. It is unclear how TACC3 interacts with chTOG. Here, we show that the C-terminal TACC domain of TACC3 and a C-terminal fragment adjacent to the TOG domains of chTOG mediate the interaction between these two proteins. Interestingly, the TACC domain consists of two functionally distinct subdomains, CC1 (amino acids (aa) 414-530) and CC2 (aa 530-630). Whereas CC1 is responsible for the interaction with chTOG, CC2 performs an intradomain interaction with the central repeat region of TACC3, thereby masking the TACC domain before effector binding. Contrary to previous findings, our data clearly demonstrate that Aurora-A kinase does not regulate TACC3-chTOG complex formation, indicating that Aurora-A solely functions as a recruitment factor for the TACC3-chTOG complex to centrosomes and proximal mitotic spindles. We identified with CC1 and CC2, two functionally diverse modules within the TACC domain of TACC3 that modulate and mediate, respectively, TACC3 interaction with chTOG required for spindle assembly and microtubule dynamics during mitotic cell division.
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Affiliation(s)
- Harish C Thakur
- From the Institut für Biochemie und Molekularbiologie II, Medizinische Fakultät der Heinrich-Heine-Universität, D-40225 Düsseldorf, Germany
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