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Puerta A, González-Bakker A, Brandão P, Pineiro M, Burke AJ, Giovannetti E, Fernandes MX, Padrón JM. Early pharmacological profiling of isatin derivatives as potent and selective cytotoxic agents. Biochem Pharmacol 2024; 222:116059. [PMID: 38364984 DOI: 10.1016/j.bcp.2024.116059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
Isatin derivatives have attracted a lot of interest for their potential in the development of new anticancer drugs. A library of 38 isatin derivatives, created through an Ugi four-component reaction, underwent an initial screening in a panel of six human solid tumor cell lines. The four most active derivatives were then selected for further testing. These compounds showed selectivity towards the non-small cell lung cancer (NSCLC) cell line SW1573, whilst NSCLC A549 cells were barely affected. The combination of phenotypic assays, including wound healing, clonogenic and continuous live cell imaging provided a deeper understanding of the compounds' mode of action. In particular, the latter demonstrated that isatin derivatives were able to induce necroptosis in SW1573 cells. The kinetics of cell death showed that necroptosis appeared after 2.5 h of exposure, which could be delayed to 7 h when co-treated with necrostatin-1. Interaction between the isatin derivatives and the KRAS G12C protein variant was discarded after in silico studies. Further studies are warranted to identify the cellular target responsible for the observed selectivity among cell lines.
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Affiliation(s)
- Adrián Puerta
- BioLab, Instituto Universitario de Bio-Orgánica Antonio González (IUBO-AG), Universidad de La Laguna, PO Box 456, 38200 La Laguna, Spain
| | - Aday González-Bakker
- BioLab, Instituto Universitario de Bio-Orgánica Antonio González (IUBO-AG), Universidad de La Laguna, PO Box 456, 38200 La Laguna, Spain
| | - Pedro Brandão
- Egas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health & Science, 2829-511 Almada, Portugal; iBB-Institute for Bioengineering and Biosciences, Department of Bioengineering, and Associate Laboratory i4HB-Institute for Health and Bio-Economy, Instituto Superior Técnico, University of Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal; Centro de Química de Coimbra - Institute of Molecular Sciences (CQC-IMS), Departamento de Química, Faculdade de Ciências e Tecnologia, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Marta Pineiro
- Centro de Química de Coimbra - Institute of Molecular Sciences (CQC-IMS), Departamento de Química, Faculdade de Ciências e Tecnologia, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Anthony J Burke
- Centro de Química de Coimbra - Institute of Molecular Sciences (CQC-IMS), Departamento de Química, Faculdade de Ciências e Tecnologia, University of Coimbra, 3004-535 Coimbra, Portugal; Faculty Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Elisa Giovannetti
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Centers (Amsterdam UMC), Vrije Universiteit Amsterdam, The Netherlands; Cancer Pharmacology Lab, Fondazione Pisana per la Scienza, Pisa, Italy
| | - Miguel X Fernandes
- Department of Engineering and Chemical Sciences, Karlstad University, 65188 Karlstad, Sweden
| | - José M Padrón
- BioLab, Instituto Universitario de Bio-Orgánica Antonio González (IUBO-AG), Universidad de La Laguna, PO Box 456, 38200 La Laguna, Spain.
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2
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Jahangiri L. Metastasis in Neuroblastoma and Its Link to Autophagy. Life (Basel) 2023; 13:life13030818. [PMID: 36983973 PMCID: PMC10056181 DOI: 10.3390/life13030818] [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: 02/22/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Neuroblastoma is a paediatric malignancy originating from the neural crest that commonly occurs in the abdomen and adrenal gland, leading to cancer-related deaths in children. Distant metastasis can be encountered at diagnosis in greater than half of these neuroblastoma patients. Autophagy, a self-degradative process, plays a key role in stress-related responses and the survival of cells and has been studied in neuroblastoma. Accordingly, in the early stages of metastasis, autophagy may suppress cancer cell invasion and migration, while its role may be reversed in later stages, and it may facilitate metastasis by enhancing cancer cell survival. To that end, a body of literature has revealed the mechanistic link between autophagy and metastasis in neuroblastoma in multiple steps of the metastatic cascade, including cancer cell invasion and migration, anoikis resistance, cancer cell dormancy, micrometastasis, and metastatic outbreak. This review aims to take a step forward and discuss the significance of multiple molecular players and compounds that may link autophagy to metastasis and map their function to various metastatic steps in neuroblastoma.
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Affiliation(s)
- Leila Jahangiri
- School of Science and Technology, Nottingham Trent University, Clifton Site, Nottingham NG11 8NS, UK
- Division of Cellular and Molecular Pathology, Department of Pathology, Addenbrooke's Hospital, University of Cambridge, Cambridge CB2 0QQ, UK
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3
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Medvedev A, Buneeva O. Tryptophan Metabolites as Mediators of Microbiota-Gut-Brain Communication: Focus on Isatin. Front Behav Neurosci 2022; 16:922274. [PMID: 35846785 PMCID: PMC9280024 DOI: 10.3389/fnbeh.2022.922274] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 05/31/2022] [Indexed: 12/01/2022] Open
Abstract
Isatin (indole-2,3-dione) is an endogenous regulator, exhibiting various behavioral, biological, and pharmacological activities. Synthesis of isatin includes several crucial stages: cleavage of the tryptophan side chain and subsequent oxidation of the indole nucleus. Although these stages require concerted action of bacterial and host enzymes, there are two pathways of isatin formation: the host and bacterial pathways. Isatin acts as a neuroprotector in different experimental models of neurodegeneration. Its effects are realized via up- and downregulation of isatin-responsive genes and via interaction with numerous isatin-binding proteins identified in the brain. The effect of isatin on protein-protein interactions in the brain may be important for realization of weak inhibition of multiple receptor targets.
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4
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Huo Z, Lomora M, Kym U, Palivan C, Holland-Cunz SG, Gros SJ. AQP1 Is Up-Regulated by Hypoxia and Leads to Increased Cell Water Permeability, Motility, and Migration in Neuroblastoma. Front Cell Dev Biol 2021; 9:605272. [PMID: 33644043 PMCID: PMC7905035 DOI: 10.3389/fcell.2021.605272] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 01/25/2021] [Indexed: 12/12/2022] Open
Abstract
The water channel aquaporin 1 (AQP1) has been implicated in tumor progression and metastasis. It is hypothesized that AQP1 expression can facilitate the transmembrane water transport leading to changes in cell structure that promote migration. Its impact in neuroblastoma has not been addressed so far. The objectives of this study have been to determine whether AQP1 expression in neuroblastoma is dependent on hypoxia, to demonstrate whether AQP1 is functionally relevant for migration, and to further define AQP1-dependent properties of the migrating cells. This was determined by investigating the reaction of neuroblastoma cell lines, particularly SH-SY5Y, Kelly, SH-EP Tet-21/N and SK-N-BE(2)-M17 to hypoxia, quantitating the AQP1-related water permeability by stopped-flow spectroscopy, and studying the migration-related properties of the cells in a modified transwell assay. We find that AQP1 expression in neuroblastoma cells is up-regulated by hypoxic conditions, and that increased AQP1 expression enabled the cells to form a phenotype which is associated with migratory properties and increased cell agility. This suggests that the hypoxic tumor microenvironment is the trigger for some tumor cells to transition to a migratory phenotype. We demonstrate that migrating tumor cell express elevated AQP1 levels and a hypoxic biochemical phenotype. Our experiments strongly suggest that elevated AQP1 might be a key driver in transitioning stable tumor cells to migrating tumor cells in a hypoxic microenvironment.
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Affiliation(s)
- Zihe Huo
- Department of Pediatric Surgery, University Children's Hospital Basel, Basel, Switzerland.,Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Mihai Lomora
- Department of Physical Chemistry, University of Basel, Basel, Switzerland
| | - Urs Kym
- Department of Pediatric Surgery, University Children's Hospital Basel, Basel, Switzerland.,Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Cornelia Palivan
- Department of Physical Chemistry, University of Basel, Basel, Switzerland
| | - Stefan G Holland-Cunz
- Department of Pediatric Surgery, University Children's Hospital Basel, Basel, Switzerland.,Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Stephanie J Gros
- Department of Pediatric Surgery, University Children's Hospital Basel, Basel, Switzerland.,Department of Clinical Research, University of Basel, Basel, Switzerland
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5
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Hochheuser C, Windt LJ, Kunze NY, de Vos DL, Tytgat GA, Voermans C, Timmerman I. Mesenchymal Stromal Cells in Neuroblastoma: Exploring Crosstalk and Therapeutic Implications. Stem Cells Dev 2021; 30:59-78. [PMID: 33287630 PMCID: PMC7826431 DOI: 10.1089/scd.2020.0142] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 12/07/2020] [Indexed: 02/07/2023] Open
Abstract
Neuroblastoma (NB) is the second most common solid cancer in childhood, accounting for 15% of cancer-related deaths in children. In high-risk NB patients, the majority suffers from metastasis. Despite intensive multimodal treatment, long-term survival remains <40%. The bone marrow (BM) is among the most common sites of distant metastasis in patients with high-risk NB. In this environment, small populations of tumor cells can persist after treatment (minimal residual disease) and induce relapse. Therapy resistance of these residual tumor cells in BM remains a major obstacle for the cure of NB. A detailed understanding of the microenvironment and its role in tumor progression is of utmost importance for improving the treatment efficiency of NB. In BM, mesenchymal stromal cells (MSCs) constitute an important part of the microenvironment, where they support hematopoiesis and modulate immune responses. Their role in tumor progression is not completely understood, especially for NB. Although MSCs have been found to promote epithelial-mesenchymal transition, tumor growth, and metastasis and to induce chemoresistance, some reports point toward a tumor-suppressive effect of MSCs. In this review, we aim to compile current knowledge about the role of MSCs in NB development and progression. We evaluate arguments that depict tumor-supportive versus -suppressive properties of MSCs in the context of NB and give an overview of factors involved in MSC-NB crosstalk. A focus lies on the BM as a metastatic niche, since that is the predominant site for NB metastasis and relapse. Finally, we will present opportunities and challenges for therapeutic targeting of MSCs in the BM microenvironment.
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Affiliation(s)
- Caroline Hochheuser
- Sanquin Research and Landsteiner Laboratory, Department of Hematopoiesis, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Princess Maxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Laurens J. Windt
- Sanquin Research and Landsteiner Laboratory, Department of Hematopoiesis, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Nina Y. Kunze
- Sanquin Research and Landsteiner Laboratory, Department of Hematopoiesis, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Dieuwke L. de Vos
- Sanquin Research and Landsteiner Laboratory, Department of Hematopoiesis, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | | | - Carlijn Voermans
- Sanquin Research and Landsteiner Laboratory, Department of Hematopoiesis, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Ilse Timmerman
- Sanquin Research and Landsteiner Laboratory, Department of Hematopoiesis, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Princess Maxima Center for Pediatric Oncology, Utrecht, the Netherlands
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6
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Ding Y, Zhao L, Fu Y, Hao L, Fu Y, Yuan Y, Yu P, Teng Y. Synthesis and Antiproliferatory Activities Evaluation of Multi-Substituted Isatin Derivatives. Molecules 2020; 26:E176. [PMID: 33396550 PMCID: PMC7795683 DOI: 10.3390/molecules26010176] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/14/2020] [Accepted: 12/18/2020] [Indexed: 11/17/2022] Open
Abstract
A series of multi-substituted isatin derivatives were synthesized using the powerful Sandmeyer reaction. The structures of these derivatives were confirmed by 1H-NMR, 13C-NMR, and HR-MS. Inhibition of proliferation activities of these derivatives against human leukemia cells (K562), human hepatocellular carcinoma cells (HepG2) and human colon carcinoma cells (HT-29) were evaluated in vitro using the MTT assay. Among the series, compound 4l exhibited strong antiproliferatory activities against K562, HepG2 and HT-29 cells with IC50 values of 1.75, 3.20, and 4.17 μM, respectively. The morphological, growth inhibitory and apoptosic effects of compound 4l in K562 cells, wound healing effect in HepG2 cells, and tube formating effect in matrix gel of HUVEC cells were evaluated consequently. All results indicated that compound 4l could be used as a potential antitumor agent in further investigations.
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Affiliation(s)
| | | | | | | | | | | | - Peng Yu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Bioengineering, Tianjin University of Science and Technology, Tianjin 300457, China; (Y.D.); (L.Z.); (Y.F.); (L.H.); (Y.F.); (Y.Y.)
| | - Yuou Teng
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Bioengineering, Tianjin University of Science and Technology, Tianjin 300457, China; (Y.D.); (L.Z.); (Y.F.); (L.H.); (Y.F.); (Y.Y.)
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7
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Zhuo H, Zhang Z, Liu Y, Zhang J, Zhao G. Design, synthesis and biological evaluation of novel 1,5-disubstituted isatin derivatives as antitumor agents. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02627-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Medvedev A, Kopylov A, Buneeva O, Kurbatov L, Tikhonova O, Ivanov A, Zgoda V. A Neuroprotective Dose of Isatin Causes Multilevel Changes Involving the Brain Proteome: Prospects for Further Research. Int J Mol Sci 2020; 21:ijms21114187. [PMID: 32545384 PMCID: PMC7313464 DOI: 10.3390/ijms21114187] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 12/18/2022] Open
Abstract
Isatin (indole-2,3-dione) is an endogenous regulator, exhibiting a wide range of biological and pharmacological activities. At doses of 100 mg/kg and above, isatin is neuroprotective in different experimental models of neurodegeneration. Good evidence exists that its effects are realized via interaction with numerous isatin-binding proteins identified in the brain and peripheral tissues studied. In this study, we investigated the effect of a single dose administration of isatin to mice (100 mg/kg, 24 h) on differentially expressed proteins and a profile of the isatin-binding proteins in brain hemispheres. Isatin administration to mice caused downregulation of 31 proteins. However, these changes cannot be attributed to altered expression of corresponding genes. Although at this time point isatin influenced the expression of more than 850 genes in brain hemispheres (including 433 upregulated and 418 downregulated genes), none of them could account for the changes in the differentially expressed proteins. Comparative proteomic analysis of brain isatin-binding proteins of control and isatin-treated mice revealed representative groups of proteins sensitive to isatin administration. Control-specific proteins (n = 55) represent specific targets that interact directly with isatin. Appearance of brain isatin-binding proteins specific to isatin-treated mice (n = 94) may be attributed to the formation of new clusters of protein–protein interactions and/or novel binding sites induced by a high concentration of this regulator (ligand-induced binding sites). Thus, isatin administration produces multiple effects in the brain, which include changes in gene expression and also profiles of isatin-binding proteins and their interactomes. Further studies are needed for deeper insight into the mechanisms of the multilevel changes in the brain proteome induced by isatin. In the context of the neuroprotective action, these changes may be aimed at interruption of pathological links that begin to form after initiation of pathological processes.
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9
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Abdussalam A, Guan Y, Xu G. Amplified Anodic Electrogenerated Chemiluminescence of Tris(2,2′‐bipyridyl)ruthenium(II) for the Sensitive Detection of Isatin. ChemElectroChem 2020. [DOI: 10.1002/celc.201902148] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Abubakar Abdussalam
- State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences 5625 Renmin Street Changchun 130022 Jilin China
- School of Applied Chemistry and EngineeringUniversity of Science and Technology of China Hefei 230026 Anhui China
- Faculty of Science, Department of ChemistryBayero University PMB 3011 Kano Nigeria
| | - Yiran Guan
- State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences 5625 Renmin Street Changchun 130022 Jilin China
| | - Guobao Xu
- State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences 5625 Renmin Street Changchun 130022 Jilin China
- School of Applied Chemistry and EngineeringUniversity of Science and Technology of China Hefei 230026 Anhui China
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10
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Hypoxia in the Initiation and Progression of Neuroblastoma Tumours. Int J Mol Sci 2019; 21:ijms21010039. [PMID: 31861671 PMCID: PMC6982287 DOI: 10.3390/ijms21010039] [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: 11/28/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 12/16/2022] Open
Abstract
Neuroblastoma is the most frequent extracranial solid tumour in children, causing 10% of all paediatric oncology deaths. It arises in the embryonic neural crest due to an uncontrolled behaviour of sympathetic nervous system progenitors, giving rise to heterogeneous tumours. Low local or systemic tissue oxygen concentration has emerged as a cellular stimulus with important consequences for tumour initiation, evolution and progression. In neuroblastoma, several evidences point towards a role of hypoxia in tumour initiation during development, tumour cell differentiation, survival and metastatic spreading. However, the heterogeneous nature of the disease, its developmental origin and the lack of suitable experimental models have complicated a clear understanding of the effect of hypoxia in neuroblastoma tumour progression and the molecular mechanisms implicated. In this review, we have compiled available evidences to try to shed light onto this important field. In particular, we explore the effect of hypoxia in neuroblastoma cell transformation and differentiation. We also discuss the experimental models available and the emerging alternatives to study this problem, and we present hypoxia-related therapeutic avenues being explored in the field.
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11
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Zhang L, Sun W, Cao Y, Hou L, Ju C, Wang X. Isatin inhibits the invasion of human neuroblastoma SH‑SY5Y cells, based on microarray analysis. Mol Med Rep 2019; 20:1700-1706. [PMID: 31257543 PMCID: PMC6625403 DOI: 10.3892/mmr.2019.10378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 04/24/2019] [Indexed: 12/15/2022] Open
Abstract
Neuroblastoma is the fourth most common type of extracranial malignant solid tumor in children. Isatin had been demonstrated to have inhibitory effects on neuroblastoma tumors in vivo and in vitro. The aim of the present study was to investigate the molecular mechanism related to the anti-invasion effect of isatin on SH-SY5Y cells using microarray analysis. The microarray data identified a number of genes to be differentially upregulated or downregulated between isatin-treated cells and untreated controls. A large number of these genes were associated with the mTOR signaling pathway. The differentially expressed genes involved in the mTOR signaling pathway were verified further, as well as their downstream genes associated with autophagy. The results of the present study provided an insight into the potential inhibitory mechanism of isatin on neuroblastoma metastasis.
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Affiliation(s)
- Li Zhang
- Department of Biochemistry, Medical College, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Wenyan Sun
- Department of Biochemistry, Medical College, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Yi Cao
- Department of Biochemistry, Medical College, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Lin Hou
- Department of Biochemistry, Medical College, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Chuanxia Ju
- Experimental Center for Undergraduates of Pharmacy, School of Pharmacy, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Xuefeng Wang
- Institute of Metabolic Diseases, Qingdao University, Qingdao, Shandong 266021, P.R. China
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12
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Medvedev A, Buneeva O, Gnedenko O, Ershov P, Ivanov A. Isatin, an endogenous nonpeptide biofactor: A review of its molecular targets, mechanisms of actions, and their biomedical implications. Biofactors 2018; 44:95-108. [PMID: 29336068 DOI: 10.1002/biof.1408] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/05/2017] [Accepted: 12/05/2017] [Indexed: 11/10/2022]
Abstract
Isatin (indole-2,3-dione) is an oxidized indole. It is widely distributed in mammalian tissues and body fluids, where isatin concentrations vary significantly from <0.1 to > 10 µM. Isatin output is increased under conditions of stress. Exogenously administered isatin is characterized by low toxicity, mutagenicity, and genotoxicity in vivo. Cytotoxic effects of isatin on various cell cultures are usually observed at concentrations exceeding 100 µM. Binding of [3 H]isatin to rat brain sections is consistent with its physiological concentrations. Proteomic analysis of mouse and rat brain isatin-binding proteins revealed about 90 individual proteins, which demonstrated significant interspecies differences (rat versus mouse). Certain evidence exist that redox state(s) and possibly other types of posttranslational modifications regulate affinity of target proteins to isatin. Recent data suggest that interacting with numerous intracellular isatin binding proteins, isatin can act as a regulator of complex protein networks in norm and pathology. Physiological concentrations of isatin in vitro inhibit monoamine oxidase B and natriuretic peptide receptor guanylate cyclase, higher (neuroprotective) concentrations (50-400 μM) cause apoptosis of various (including malignant tumor) cell lines and influence expression of certain apoptosis-related genes. Being administered in vivo, isatin exhibits various behavioral effects; it attenuates manifestations of MPTP-induced parkinsonism and tumor growth in experimental animal models. © 2017 BioFactors, 44(2):95-108, 2018.
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Affiliation(s)
- Alexei Medvedev
- Department of Proteomic Research and Mass Spectrometry, Institute of Biomedical Chemistry, Moscow, Russia
| | - Olga Buneeva
- Department of Proteomic Research and Mass Spectrometry, Institute of Biomedical Chemistry, Moscow, Russia
| | - Oksana Gnedenko
- Department of Proteomic Research and Mass Spectrometry, Institute of Biomedical Chemistry, Moscow, Russia
| | - Pavel Ershov
- Department of Proteomic Research and Mass Spectrometry, Institute of Biomedical Chemistry, Moscow, Russia
| | - Alexis Ivanov
- Department of Proteomic Research and Mass Spectrometry, Institute of Biomedical Chemistry, Moscow, Russia
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