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Mandal K, Tomar SK, Kumar Santra M. Decoding the ubiquitin language: Orchestrating transcription initiation and gene expression through chromatin remodelers and histones. Gene 2024; 904:148218. [PMID: 38307220 DOI: 10.1016/j.gene.2024.148218] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/22/2024] [Accepted: 01/25/2024] [Indexed: 02/04/2024]
Abstract
Eukaryotic transcription is a finely orchestrated process and it is controlled by transcription factors as well as epigenetic regulators. Transcription factors and epigenetic regulators undergo different types of posttranslational modifications including ubiquitination to control transcription process. Ubiquitination, traditionally associated with protein degradation, has emerged as a crucial contributor to the regulation of chromatin structure through ubiquitination of histone and chromatin remodelers. Ubiquitination introduces new layers of intricacy to the regulation of transcription initiation through controlling the equilibrium between euchromatin and heterochromatin states. Nucleosome, the fundamental units of chromatin, spacing in euchromatin and heterochromatin states are regulated by histone modification and chromatin remodeling complexes. Chromatin remodeling complexes actively sculpt the chromatin architecture and thereby influence the transcriptional states of genes. Therefore, understanding the dynamic behavior of nucleosome spacing is critical as it impacts various cellular functions through controlling gene expression profiles. In this comprehensive review, we discussed the intricate interplay between ubiquitination and transcription initiation, and illuminated the underlying molecular mechanisms that occur in a variety of biological contexts. This exploration sheds light on the complex regulatory networks that govern eukaryotic transcription, providing important insights into the fine orchestration of gene expression and chromatin dynamics.
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Affiliation(s)
- Kartik Mandal
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Shiva Kumar Tomar
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Manas Kumar Santra
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India.
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2
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Taunk K, Paul D, Dabhi R, Venkatesh C, Jajula S, Naik V, Tamhankar A, Naiya T, Kumar Santra M, Rapole S. A single step and rapid protein extraction protocol developed for cell lines and tissues: Compatible for gel based and gel free proteomic approaches. Methods 2023; 220:29-37. [PMID: 37918646 DOI: 10.1016/j.ymeth.2023.10.011] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/18/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023] Open
Abstract
Proteins are crucial research molecules in modern biology. Almost every biological research area needs protein-based assays to answer the research questions. The study of the total protein content of a biological sample known as Proteomics, is one of the highly rated qualitative and quantitative approach to address numerous biological problems including clinical research. The key step to successfully generate high quality proteomics data is the efficient extraction of proteins from biological samples. Although different methods are in use for protein extraction from a wide variety of samples, however, because of their prolonged protocol and multiple steps involved, final protein yield is sacrificed. Here, we have shown the development of a simple single step method for extraction of proteins from mammalian cell lines as well as tissue samples in an effective and reproducible manner. This method is based on lysis of samples directly in a modified lysis buffer without CHAPS (7 M Urea, 2 M Thiourea, and 10 mM Tris-Cl; pH 8.5) that is compatible with gel based and gel free approaches. This developed protocol is reliable and should be useful for a wide range of proteomic studies involving various biological samples.
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Affiliation(s)
- Khushman Taunk
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India; Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, West Bengal, Haringhata, West Bengal, India
| | - Debasish Paul
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India
| | - Raju Dabhi
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India
| | | | - Saikiran Jajula
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India
| | - Venkateshwarlu Naik
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India
| | - Anup Tamhankar
- Department of Surgical Oncology, Deenanath Mangeshkar Hospital and Research Centre, Erandawne, Pune 411004, Maharashtra, India
| | - Tufan Naiya
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, West Bengal, Haringhata, West Bengal, India
| | - Manas Kumar Santra
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India.
| | - Srikanth Rapole
- National Centre for Cell Science, Ganeshkhind, Pune 411007, Maharashtra, India.
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3
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Barik GK, Sahay O, Mukhopadhyay A, Manne RK, Islam S, Roy A, Nath S, Santra MK. FBXW2 suppresses breast tumorigenesis by targeting AKT-Moesin-SKP2 axis. Cell Death Dis 2023; 14:623. [PMID: 37736741 PMCID: PMC10517019 DOI: 10.1038/s41419-023-06127-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 06/09/2023] [Revised: 08/24/2023] [Accepted: 09/05/2023] [Indexed: 09/23/2023]
Abstract
Oncogene Moesin plays critical role in initiation, progression, and metastasis of multiple cancers. It exerts oncogenic activity due to its high-level expression as well as posttranslational modification in cancer. However, factors responsible for its high-level expression remain elusive. In this study, we identified positive as well as negative regulators of Moesin. Our study reveals that Moesin is a cellular target of F-box protein FBXW2. We showed that FBXW2 suppresses breast cancer progression through directing proteasomal degradation of Moesin. In contrast, AKT kinase plays an important role in oncogenic function of Moesin by protecting it from FBXW2-mediated proteasomal degradation. Mechanistically, AKT phosphorylates Moesin at Thr-558 and thereby prevents its degradation by FBXW2 via weakening the association between FBXW2 and Moesin. Further, accumulated Moesin prevents FBXW2-mediated degradation of oncogene SKP2, showing that Moesin functions as an upstream regulator of oncogene SKP2. In turn, SKP2 stabilizes Moesin by directing its non-degradable form of polyubiquitination and therefore AKT-Moesin-SKP2 oncogenic axis plays crucial role in breast cancer progression. Collectively, our study reveals that FBXW2 functions as a tumor suppressor in breast cancer by restricting AKT-Moesin-SKP2 axis. Thus, AKT-Moesin-SKP2 axis may be explored for the development of therapeutics for cancer treatment.
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Affiliation(s)
- Ganesh Kumar Barik
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra, 411007, India
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra, 411007, India
| | - Osheen Sahay
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra, 411007, India
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra, 411007, India
| | - Anindya Mukhopadhyay
- Saroj Gupta Cancer Centre and Research Institute, Kolkata, West Bengal, 700063, India
| | - Rajesh Kumar Manne
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra, 411007, India
| | - Sehbanul Islam
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra, 411007, India
| | - Anup Roy
- Department of Pathology, Nil Ratan Sircar Medical College and Hospital, Kolkata, West Bengal, 700014, India
| | - Somsubhra Nath
- Saroj Gupta Cancer Centre and Research Institute, Kolkata, West Bengal, 700063, India
- Institute of Health Sciences, Presidency University, New Town, Kolkata, West Bengal, 700156, India
| | - Manas Kumar Santra
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra, 411007, India.
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Mallu ACT, Sivagurunathan S, Paul D, Aggarwal H, Nathan AA, Manikandan A, Ravi MM, Boppana R, Jagavelu K, Santra MK, Dixit M. Feeding enhances fibronectin adherence of quiescent lymphocytes through non-canonical insulin signalling. Immunology 2023; 170:60-82. [PMID: 37185810 DOI: 10.1111/imm.13652] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 04/10/2023] [Indexed: 05/17/2023] Open
Abstract
Nutritional availability during fasting and refeeding affects the temporal redistribution of lymphoid and myeloid immune cells among the circulating and tissue-resident pools. Conversely, nutritional imbalance and impaired glucose metabolism are associated with chronic inflammation, aberrant immunity and anomalous leukocyte trafficking. Despite being exposed to periodic alterations in blood insulin levels upon fasting and feeding, studies exploring the physiological effects of these hormonal changes on quiescent immune cell function and trafficking are scanty. Here, we report that oral glucose load in mice and healthy men enhances the adherence of circulating peripheral blood mononuclear cells (PBMCs) and lymphocytes to fibronectin. Adherence to fibronectin is also observed upon regular intake of breakfast following overnight fasting in healthy subjects. This glucose load-induced phenomenon is abrogated in streptozotocin-injected mice that lack insulin. Intra-vital microscopy in mice demonstrated that oral glucose feeding enhances the homing of PBMCs to injured blood vessels in vivo. Furthermore, employing flow cytometry, Western blotting and adhesion assays for PBMCs and Jurkat-T cells, we elucidate that insulin enhances fibronectin adherence of quiescent lymphocytes through non-canonical signalling involving insulin-like growth factor-1 receptor (IGF-1R) autophosphorylation, phospholipase C gamma-1 (PLCγ-1) Tyr783 phosphorylation and inside-out activation of β-integrins respectively. Our findings uncover the physiological relevance of post-prandial insulin spikes in regulating the adherence and trafficking of circulating quiescent T-cells through fibronectin-integrin interaction.
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Affiliation(s)
- Abhiram Charan Tej Mallu
- Centre of Excellence (CoE) in Molecular Medicine, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Sivapriya Sivagurunathan
- Centre of Excellence (CoE) in Molecular Medicine, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Debasish Paul
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
| | - Hobby Aggarwal
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Abel Arul Nathan
- Centre of Excellence (CoE) in Molecular Medicine, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Amrutha Manikandan
- Centre of Excellence (CoE) in Molecular Medicine, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Mahalakshmi M Ravi
- Institute Hospital, Indian Institute of Technology Madras, Chennai, India
| | - Ramanamurthy Boppana
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
| | | | - Manas Kumar Santra
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
| | - Madhulika Dixit
- Centre of Excellence (CoE) in Molecular Medicine, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
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5
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Dey S, Patel A, Haloi N, Srimayee S, Paul S, Barik GK, Akhtar N, Shaw D, Hazarika G, Prusty BM, Kumar M, Santra MK, Tajkhorshid E, Bhattacharjee S, Manna D. Quinoline Thiourea-Based Zinc Ionophores with Antibacterial Activity. J Med Chem 2023; 66:11078-11093. [PMID: 37466499 DOI: 10.1021/acs.jmedchem.3c00368] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
The increasing resistance of bacteria to commercially available antibiotics threatens patient safety in healthcare settings. Perturbation of ion homeostasis has emerged as a potential therapeutic strategy to fight against antibacterial resistance and other channelopathies. This study reports the development of 8-aminoquinoline (QN) derivatives and their transmembrane Zn2+ transport activities. Our findings showed that a potent QN-based Zn2+ transporter exhibits promising antibacterial properties against Gram-positive bacteria with reduced hemolytic activity and cytotoxicity to mammalian cells. Furthermore, this combination showed excellent in vivo efficacy against Staphylococcus aureus. Interestingly, this combination prevented bacterial resistance and restored susceptibility of gentamicin and methicillin-resistant S. aureus to commercially available β-lactam and other antibiotics that had lost their activity against the drug-resistant bacterial strain. Our findings suggest that the transmembrane transport of Zn2+ by QN derivatives could be a promising strategy to combat bacterial infections and restore the activity of other antibiotics.
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Affiliation(s)
- Subhasis Dey
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Anjali Patel
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Nandan Haloi
- Theoretical and Computational Biophysics Group, NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Department of Biochemistry, and Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Soumya Srimayee
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Suman Paul
- Department of Molecular Biology and Bioinformatics, Tripura University (A Central University), Suryamaninagar, Tripura 799022, India
| | | | - Nasim Akhtar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Dipanjan Shaw
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Gunanka Hazarika
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Biswa Mohan Prusty
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Mohit Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | | | - Emad Tajkhorshid
- Theoretical and Computational Biophysics Group, NIH Center for Macromolecular Modeling and Bioinformatics, Beckman Institute for Advanced Science and Technology, Department of Biochemistry, and Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Surajit Bhattacharjee
- Department of Molecular Biology and Bioinformatics, Tripura University (A Central University), Suryamaninagar, Tripura 799022, India
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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6
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Mishra S, Tripathy SK, Paul D, Laha P, Santra MK, Patra S. Asymmetrically Coordinated Heterodimetallic Ir-Ru System: Synthesis, Computational, and Anticancer Aspects. Inorg Chem 2023; 62:7003-7013. [PMID: 37097171 DOI: 10.1021/acs.inorgchem.3c00272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
Herein, we present an unprecedented formation of a heterodinuclear complex [{(ppy)2IrIII}(μ-phpy){RuII(tpy)}](ClO4)2 {[1](ClO4)2} using terpyridyl/phenylpyridine as ancillary ligands and asymmetric phpy as a bridging ligand. The asymmetric binding mode (N∧N-∩-N∧N∧C-) of the phpy ligand in {[1](ClO4)2} is confirmed by 1H, 13C, 1H-1H correlated spectroscopy (COSY), high-resolution mass spectrum (HRMS), single-crystal X-ray crystallography techniques, and solution conductivity measurements. Theoretical investigation suggests that the highest occupied molecular orbital (HOMO) and the least unoccupied molecular orbital (LUMO) of [1]2+ are located on iridium/ppy and phpy, respectively. The complex displays a broad low energy charge transfer (CT) band within 450-575 nm. The time-dependent density functional theory (TDDFT) analysis suggests this as a mixture of metal-to-ligand charge transfer (MLCT) and ligand-to-ligand charge transfer (LLCT), where both ruthenium, iridium, and ligands are involved. Complex {[1](ClO4)2} exhibits RuIIIrIII/RuIIIIrIII- and RuIIIIrIII/RuIIIIrIV-based oxidative couples at 0.83 and 1.39 V, respectively. The complex shows anticancer activity and selectivity toward human breast cancer cells (IC50; MCF-7: 9.3 ± 1.2 μM, and MDA-MB-231: 8.6 ± 1.2 μM) over normal breast cells (MCF 10A: IC50 ≈ 21 ± 1.3 μM). The Western blot analysis and fluorescence microscopy images suggest that combined apoptosis and autophagy are responsible for cancer cell death.
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Affiliation(s)
- Saumyaranjan Mishra
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Jatni 752050, Odisha, India
| | - Suman Kumar Tripathy
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Jatni 752050, Odisha, India
| | - Debasish Paul
- National Centre for Cell Science, NCCS Complex, Pune University Campus Ganeshkhind, Pune 411007, Maharashtra, India
| | - Paltan Laha
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Jatni 752050, Odisha, India
| | - Manas Kumar Santra
- National Centre for Cell Science, NCCS Complex, Pune University Campus Ganeshkhind, Pune 411007, Maharashtra, India
| | - Srikanta Patra
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Jatni 752050, Odisha, India
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7
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Apte S, Bhutda S, Ghosh S, Sharma K, Barton TE, Dibyachintan S, Sahay O, Roy S, Sinha AR, Adicherla H, Rakshit J, Tang S, Datey A, Santra S, Joseph J, Sasidharan S, Hammerschmidt S, Chakravortty D, Oggioni MR, Santra MK, Neill DR, Banerjee A. An innate pathogen sensing strategy involving ubiquitination of bacterial surface proteins. Sci Adv 2023; 9:eade1851. [PMID: 36947610 PMCID: PMC10032600 DOI: 10.1126/sciadv.ade1851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Sensing of pathogens by ubiquitination is a critical arm of cellular immunity. However, universal ubiquitination targets on microbes remain unidentified. Here, using in vitro, ex vivo, and in vivo studies, we identify the first protein-based ubiquitination substrates on phylogenetically diverse bacteria by unveiling a strategy that uses recognition of degron-like motifs. Such motifs form a new class of intra-cytosolic pathogen-associated molecular patterns (PAMPs). Their incorporation enabled recognition of nonubiquitin targets by host ubiquitin ligases. We find that SCFFBW7 E3 ligase, supported by the regulatory kinase, glycogen synthase kinase 3β, is crucial for effective pathogen detection and clearance. This provides a mechanistic explanation for enhanced risk of infections in patients with chronic lymphocytic leukemia bearing mutations in F-box and WD repeat domain containing 7 protein. We conclude that exploitation of this generic pathogen sensing strategy allows conservation of host resources and boosts antimicrobial immunity.
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Affiliation(s)
- Shruti Apte
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Smita Bhutda
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Sourav Ghosh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Kuldeep Sharma
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Thomas E. Barton
- Department of Clinical Infection, Microbiology and Immunology, University of Liverpool, L69 7BE Liverpool, UK
| | - Soham Dibyachintan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Osheen Sahay
- Cancer Biology and Epigenetics Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune 411007, Maharashtra, India
| | - Suvapriya Roy
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Akash Raj Sinha
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Harikrishna Adicherla
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Habsiguda, Hyderabad 500007 Telangana, India
| | - Jyotirmoy Rakshit
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Shiying Tang
- Department of Genetics and Genome Biology, University of Leicester, Leicester, UK
| | - Akshay Datey
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, Karnataka, India
| | - Shweta Santra
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Jincy Joseph
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Sreeja Sasidharan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
| | - Sven Hammerschmidt
- Department of Molecular Genetics and Infection Biology, Interfaculty Institute of Genetics and Functional Genomics, Center for Functional Genomics of Microbes, University of Greifswald, D-17487 Greifswald, Germany
| | - Dipshikha Chakravortty
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, Karnataka, India
| | - Marco R. Oggioni
- Department of Genetics and Genome Biology, University of Leicester, Leicester, UK
| | - Manas Kumar Santra
- Cancer Biology and Epigenetics Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune 411007, Maharashtra, India
| | - Daniel R. Neill
- Department of Clinical Infection, Microbiology and Immunology, University of Liverpool, L69 7BE Liverpool, UK
| | - Anirban Banerjee
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India
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8
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Mondal A, Barik GK, Sarkar S, Mondal D, Ahmad M, Vijayakanth T, Mondal J, Santra MK, Talukdar P. Nontoxic Artificial Chloride Channel Formation in Epithelial Cells by Isophthalic Acid-Based Small Molecules. Chemistry 2023; 29:e202202887. [PMID: 36399427 DOI: 10.1002/chem.202202887] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/18/2022] [Accepted: 11/18/2022] [Indexed: 11/19/2022]
Abstract
Artificial channels capable of facilitating the transport of Cl- ions across cell membranes while being nontoxic to the cells are rare. Such synthetic ion channels can mimic the functions of membrane transport proteins and, therefore, have the potential to treat channelopathies by replacing defective ion channels. Here we report isophthalic acid-based structurally simple molecules 1 a and 2 a, which self-assemble to render supramolecular nanochannels that allow selective transport of Cl- ions. As evident from the single-crystal X-ray diffraction analysis, the self-assembly is governed by intermolecular hydrogen bonding and π-π stacking interactions. The MD simulation studies for both 1 a and 2 a confirmed the formation of stable Cl- channel assembly in the lipid membrane and Cl- transport through them. The MQAE assay showed the efficacy of the compounds in delivering Cl- ions into cells, and the MTT assays proved that the compounds are nontoxic to cells even at a concentration of 100 μM.
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Affiliation(s)
- Abhishek Mondal
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
| | | | - Susmita Sarkar
- Center for Interdisciplinary Sciences, Tata Institute of Fundamental Research, Hyderabad, 500046, Telangana, India
| | - Debashis Mondal
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
| | - Manzoor Ahmad
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
| | - Thangavel Vijayakanth
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Jagannath Mondal
- Center for Interdisciplinary Sciences, Tata Institute of Fundamental Research, Hyderabad, 500046, Telangana, India
| | | | - Pinaki Talukdar
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
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9
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Barik GK, Sahay O, Paul D, Santra MK. Ezrin gone rogue in cancer progression and metastasis: An enticing therapeutic target. Biochim Biophys Acta Rev Cancer 2022; 1877:188753. [PMID: 35752404 DOI: 10.1016/j.bbcan.2022.188753] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 02/18/2022] [Revised: 06/16/2022] [Accepted: 06/18/2022] [Indexed: 12/12/2022]
Abstract
Cancer metastasis is the primary cause of morbidity and mortality in cancer as it remains the most complicated, devastating, and enigmatic aspect of cancer. Several decades of extensive research have identified several key players closely associated with metastasis. Among these players, cytoskeletal linker Ezrin (the founding member of the ERM (Ezrin-Radixin-Moesin) family) was identified as a critical promoter of metastasis in pediatric cancers in the early 21st century. Ezrin was discovered 40 years ago as a aminor component of intestinal epithelial microvillus core protein, which is enriched in actin-containing cell surface structures. It controls gastric acid secretion and plays diverse physiological roles including maintaining cell polarity, regulating cell adhesion, cell motility and morphogenesis. Extensive research for more than two decades evinces that Ezrin is frequently dysregulated in several human cancers. Overexpression, altered subcellular localization and/or aberrant activation of Ezrin are closely associated with higher metastatic incidence and patient mortality, thereby justifying Ezrin as a valuable prognostic biomarker in cancer. Ezrin plays multifaceted role in multiple aspects of cancer, with its significant contribution in the complex metastatic cascade, through reorganizing the cytoskeleton and deregulating various cellular signaling pathways. Current preclinical studies using genetic and/or pharmacological approaches reveal that inactivation of Ezrin results in significant inhibition of Ezrin-mediated tumor growth and metastasis as well as increase in the sensitivity of cancer cells to various chemotherapeutic drugs. In this review, we discuss the recent advances illuminating the molecular mechanisms responsible for Ezrin dysregulation in cancer and its pleiotropic role in cancer progression and metastasis. We also highlight its potential as a prognostic biomarker and therapeutic target in various cancers. More importantly, we put forward some potential questions, which we strongly believe, will stimulate both basic and translational research to better understand Ezrin-mediated malignancy, ultimately leading to the development of Ezrin-targeted cancer therapy for the betterment of human life.
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Affiliation(s)
- Ganesh Kumar Barik
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Osheen Sahay
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Debasish Paul
- Laboratory of Cancer Biology and Genetics, Centre for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Manas Kumar Santra
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India.
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10
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Agrawal Y, Sharma T, Islam S, Nadkarni KS, Santra MK. F-box protein FBXO41 suppresses breast cancer growth by inducing autophagic cell death through facilitating proteasomal degradation of oncogene SKP2. Int J Biochem Cell Biol 2022; 147:106228. [PMID: 35598880 DOI: 10.1016/j.biocel.2022.106228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 02/11/2022] [Revised: 05/12/2022] [Accepted: 05/15/2022] [Indexed: 12/30/2022]
Abstract
F-box proteins form SCF (Cullin1, SKP1 and F-box-protein) ubiquitin ligase complexes to ubiquitinate cellular proteins. They play key role in several biological processes, including cell cycle progression, cellular signaling, stress response and cell death pathways. Therefore, deregulation of F-box proteins is closely associated with cancer progression. However, the role of most of the F-box proteins, including FBXO41, in cancer progression remains elusive. Here, we unravel the role of FBXO41 in cancer progression. We show that FBXO41 suppresses cancer cell proliferation and tumor growth by inducing autophagic cell death through an alternative pathway. Results revealed that FBXO41-mediated autophagic cell death induction is dependent on accumulation of cell cycle checkpoint protein p21. We found that FBXO41 increases the expression levels of p21 at the post-translational level by promoting the proteasomal degradation of SKP2, an oncogenic F-box protein. Mechanistically, FBXO41 along with p21 disrupts the inhibitory BCL2 (anti-apoptotic protein)-Beclin1 (autophagy initiating factor) complex of autophagy induction to release Beclin1, thereby inducing autophagy. Overall, the present study establishes a new FBXO41-SKP2-p21 axis for induction of autophagic cell death to prevent cancer growth, which could be explored to develop promising cancer therapeutics.
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Affiliation(s)
- Yashika Agrawal
- Molecular Oncology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, S. P. Pune University, Ganeshkhind Road, Pune, Maharashtra, 411007 India
| | - Tanisha Sharma
- Molecular Oncology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, S. P. Pune University, Ganeshkhind Road, Pune, Maharashtra, 411007 India
| | - Sehbanul Islam
- Molecular Oncology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Kaustubh S Nadkarni
- Molecular Oncology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, S. P. Pune University, Ganeshkhind Road, Pune, Maharashtra, 411007 India
| | - Manas Kumar Santra
- Molecular Oncology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India.
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11
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Patra A, Sahay O, Kumar Mahish M, Rani Das M, Saren D, Paul A, Vojtíšek P, Kumar Santra M, Chandra Manna S. Linear dicarboxylato and tridentate chelating ligands coordinated Cu(II) complexes: Syntheses, crystal structures, protein binding and cytotoxicity studies. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Agrawal Y, Nadkarni K, Gupta NA, Manne RK, Santra MK. F-box protein FBXO41 plays vital role in arsenic trioxide-mediated autophagic death of cancer cells. Toxicol Appl Pharmacol 2022; 441:115973. [PMID: 35278439 DOI: 10.1016/j.taap.2022.115973] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 11/29/2022]
Abstract
Arsenic trioxide (ATO), a potent anti-neoplastic drug, is known to prevent cancer cell growth through induction of autophagic cell death. However, importance of cellular factors in ATO-mediated autophagic cell death is poorly understood. In this study, using biochemical and immunofluorescence techniques, we show that F-box protein FBXO41 plays a critical role in anti-proliferative activity of ATO. Our study reveals the importance of FBXO41 in induction of autophagic death of cancer cells by ATO. Further, we show that the autophagic cell death induced by FBXO41 is distinct and independent of apoptosis and necrosis, showing that FBXO41 may play vital role in inducing autophagic death of apoptosis resistant cancer cells. Overall, our study elucidates the importance of FBXO41 in ATO induced autophagic cell death to prevent cancer progression, which could be explored to develop promising cancer therapeutic strategy.
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Affiliation(s)
- Yashika Agrawal
- Molecular Oncology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, S.P. Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Kaustubh Nadkarni
- Molecular Oncology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, S.P. Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Neha A Gupta
- Molecular Oncology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Rajesh Kumar Manne
- Molecular Oncology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Manas Kumar Santra
- Molecular Oncology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India.
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Samanta S, Mahata R, Santra MK. The Cross-Talk between Epigenetic Gene Regulation and Signaling Pathways Regulates Cancer Pathogenesis. Subcell Biochem 2022; 100:427-472. [PMID: 36301502 DOI: 10.1007/978-3-031-07634-3_13] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Cancer begins due to uncontrolled cell division. Cancer cells are insensitive to the signals that control normal cell proliferation. This uncontrolled cell division is due to the accumulation of abnormalities in different factors associated with the cell division, including different cyclins, cell cycle checkpoint inhibitors, and cellular signaling. Cellular signaling pathways are aberrantly activated in cancer mainly due to epigenetic regulation and post-translational regulation. In this chapter, the role of epigenetic regulation in aberrant activation of PI3K/AKT, Ras, Wnt, Hedgehog, Notch, JAK/STAT, and mTOR signaling pathways in cancer progression is discussed. The role of epigenetic regulators in controlling the upstream regulatory proteins and downstream effector proteins responsible for abnormal cellular signaling-mediated cancer progression is covered in this chapter. Similarly, the role of signaling pathways in controlling epigenetic gene regulation-mediated cancer progression is also discussed. We have tried to ascertain the current status of potential epigenetic drugs targeting several epigenetic regulators to prevent different cancers.
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Affiliation(s)
- Snigdha Samanta
- Molecular Oncology Laboratory, National Centre for Cell Science, NCCS Complex, S. P. Pune University Campus, Ganeshkhind Road, Pune, Maharashtra, India
- Department of Biotechnology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Rumpa Mahata
- Molecular Oncology Laboratory, National Centre for Cell Science, NCCS Complex, S. P. Pune University Campus, Ganeshkhind Road, Pune, Maharashtra, India
- Department of Biotechnology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Manas Kumar Santra
- Molecular Oncology Laboratory, National Centre for Cell Science, NCCS Complex, S. P. Pune University Campus, Ganeshkhind Road, Pune, Maharashtra, India.
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Sahay O, Barik GK, Sharma T, Pillai AD, Rapole S, Santra MK. Damsel in distress calling on her knights: Illuminating the pioneering role of E3 ubiquitin ligases in guarding the genome integrity. DNA Repair (Amst) 2021; 109:103261. [PMID: 34920250 DOI: 10.1016/j.dnarep.2021.103261] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 11/30/2021] [Accepted: 12/07/2021] [Indexed: 11/03/2022]
Abstract
The maintenance of genomic integrity is of utmost importance for the organisms to survive and to accurately inherit traits to their progenies. Any kind of DNA damage either due to defect in DNA duplication and/ or uncontrolled cell division or intracellular insults or environment radiation can result in gene mutation, chromosomal aberration and ultimately genomic instability, which may cause several diseases including cancers. Therefore, cells have evolved machineries for the surveillance of genomic integrity. Enormous exciting studies in the past indicate that ubiquitination (a posttranslational modification of proteins) plays a crucial role in maintaining the genomic integrity by diverse ways. In fact, various E3 ubiquitin ligases catalyse ubiquitination of key proteins to control their central role during cell cycle, DNA damage response (DDR) and DNA repair. Some E3 ligases promote genomic instability while others prevent it, deregulation of both of which leads to several malignancies. In this review, we consolidate the recent findings wherein the role of ubiquitination in conferring genome integrity is highlighted. We also discuss the latest discoveries on the mechanisms utilized by various E3 ligases to preserve genomic stability, with a focus on their actions during cell cycle progression and different types of DNA damage response as well as repair pathways.
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Affiliation(s)
- Osheen Sahay
- National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, S.P. Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Ganesh Kumar Barik
- National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, S.P. Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Tanisha Sharma
- National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, S.P. Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Ajay D Pillai
- National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Srikanth Rapole
- National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Manas Kumar Santra
- National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India.
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15
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Islam S, Dutta P, Chopra K, Sahay O, Rapole S, Chauhan R, Santra MK. Co-operative binding of SKP1, Cullin1 and Cullin7 to FBXW8 results in Cullin1-SKP1-FBXW8-Cullin7 functional complex formation that monitors cellular function of β-TrCP1. Int J Biol Macromol 2021; 190:233-243. [PMID: 34478796 DOI: 10.1016/j.ijbiomac.2021.08.195] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 10/20/2022]
Abstract
F-box protein FBXW8 is known to interact with scaffolding protein Cullin1 and Cullin7 to form SCF (SKP1, Cullin and F-box protein) complex. However, detail understanding about the importance of both Cullins for SCF-FBXW8 complex formation as well as its ubiquitin ligase activity remains elusive. Here, we show that, through in vitro and in vivo studies, Cullin1 and Cullin7 increase each other's binding to FBXW8 synergistically. Interestingly, absence of either Cullin results in abrogation of binding of other Cullin to FBXW8. Binding of SKP1 to FBXW8 also increases in the presence of both the Cullins. Thus, SKP1, Cullin1 and Cullin7 are essential to form Cullin1-SKP1-FBXW8-Cullin7 functional ubiquitin ligase complex. Further, using computational, mutational and biochemical analysis, we found that Cullin1 binds to N-terminus of FBXW8 through SKP1 while Cullin7 associates with C-terminus of FBXW8 to form Cullin1-SKP1-FBXW8-Cullin7 functional complex in a cooperative manner. Results showed that Cullin1-SKP1-FBXW8-Cullin7 complex plays a key role in maintaining the basal level expression of β-TrCP1. Moreover, Cullin1-SKP1-FBXW8-Cullin7 complex promotes cell migration by activating β-catenin via directing proteasomal degradation of β-TrCP1. Overall, our study reveals the intriguing molecular mechanism of assembly of SKP1, Cullin1, Cullin7 and FBXW8 to form Cullin1-SKP1-FBXW8-Cullin7 functional complex that control the function of β-TrCP1.
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Affiliation(s)
- Sehbanul Islam
- Molecular Oncology Laboratory, National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Parul Dutta
- Molecular Oncology Laboratory, National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Kriti Chopra
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India; Laboratory of Structural Biology, National Centre for Cell Science, Pune, Maharashtra 411007, India
| | - Osheen Sahay
- Molecular Oncology Laboratory, National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India; Proteomics Laboratory, National Centre for Cell Science, Pune, Maharashtra 411007, India
| | - Srikanth Rapole
- Proteomics Laboratory, National Centre for Cell Science, Pune, Maharashtra 411007, India
| | - Radha Chauhan
- Laboratory of Structural Biology, National Centre for Cell Science, Pune, Maharashtra 411007, India
| | - Manas Kumar Santra
- Molecular Oncology Laboratory, National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra 411007, India.
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Islam S, Dutta P, Sahay O, Gopalakrishnan K, Roy Muhury S, Parameshwar P, Shetty P, Santra MK. Feedback-regulated transcriptional repression of FBXO31 by c-Myc triggers ovarian cancer tumorigenesis. Int J Cancer 2021; 150:1512-1524. [PMID: 34706096 DOI: 10.1002/ijc.33854] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 02/03/2021] [Revised: 07/30/2021] [Accepted: 09/02/2021] [Indexed: 11/08/2022]
Abstract
FBXO31, a member of F-box protein family, has been shown to play an important role in preventing tumorigenesis by preserving genomic stability during cell proliferations as well as upon genotoxic stresses. Inactivation of FBXO31 due to loss of heterozygosity is associated with various cancers, including ovarian cancer, one of the deadliest forms of gynecological cancers. However, the role and regulation of FBXO31 in ovarian cancer remained elusive. Here, using biochemical and molecular biology techniques, we show that c-Myc suppresses the mRNA levels of FBXO31 in ovarian cancer cell lines and mouse model. Chromatin immunoprecipitation experiment showed that c-Myc is recruited to the promoter region of FBXO31 and prevents FBXO31 mRNA synthesis. In contrast, FBXO31 maintains the c-Myc expression at an optimum through proteasome pathway. FBXO31 interacts with and facilitates the polyubiquitination of c-Myc through the SCF complex and thereby inhibits ovarian cancer growth both in vitro and in vivo. Moreover, FBXO31-mediated proteasomal degradation of c-Myc is unique. Unlike other negative regulators, FBXO31 recognizes c-Myc in phosphorylation independent manner to direct its degradation. Further, expression levels analysis revealed that c-Myc and FBXO31 share a converse correlation of expression in ovarian cancer cell lines and patient samples. We observed an increase in the expression levels of c-Myc with a concomitant decrease in the levels of FBXO31 in higher grades of ovarian cancer patient samples. In conclusion, our study demonstrated that oncogene c-Myc impairs the tumor-suppressive functions of FBXO31 to promote ovarian cancer progression, and therefore c-Myc-FBXO31 axis can be explored to develop better cancer therapy. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Sehbanul Islam
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra, India.,Department of Biotechnology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Parul Dutta
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra, India.,Department of Biotechnology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Osheen Sahay
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra, India.,Department of Biotechnology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - K Gopalakrishnan
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra, India
| | - Sushrita Roy Muhury
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra, India
| | - Parinitha Parameshwar
- Department of Pathology, SDM College of Medical Sciences & Hospital, Sattur, Dharwad, India
| | - Praveenkumar Shetty
- K. S. Hegde Medical Academy, NITTE (Deemed to be University), University Enclave, Medical Sciences Complex, Dheralakatte, Mangalore, India
| | - Manas Kumar Santra
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra, India
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Manne RK, Agrawal Y, Malonia SK, Banday S, Edachery S, Patel A, Kumar A, Shetty P, Santra MK. FBXL20 promotes breast cancer malignancy by inhibiting apoptosis through degradation of PUMA and BAX. J Biol Chem 2021; 297:101253. [PMID: 34587475 PMCID: PMC8507197 DOI: 10.1016/j.jbc.2021.101253] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 08/11/2021] [Accepted: 09/24/2021] [Indexed: 02/07/2023] Open
Abstract
Apoptosis is a programmed cell death that efficiently removes damaged cells to maintain tissue homeostasis. Defect in apoptotic machinery can lead to tumor development, progression, and resistance to chemotherapy. PUMA (p53 upregulated modulator of apoptosis) and BAX (BCL2-associated X protein) are among the most well-known inducers of apoptosis. It has been reported that expression levels of BAX and PUMA are controlled at the posttranslational level by phosphorylation. However, the posttranslational regulation of these proapoptotic proteins remains largely unexplored. In this study, using biochemical, molecular biology, flow cytometric, and immunohistochemistry techniques, we show that PUMA and BAX are the direct target of the F-box protein FBXL20, which restricts their cellular levels. FBXL20 directs the proteasomal degradation of PUMA and BAX in a protein kinase AKT1-dependent manner to promote cancer cell proliferation and tumor growth. Interestingly, inactivation of AKT1 results in activation of another protein kinase GSK3α/β, which facilitates the proteasomal degradation of FBXL20 by another F-box protein, FBXO31. Thus, a switch between two signaling kinases AKT1 and GSK3α/β modulates the functional activity of these proapoptotic regulators, thereby determining cell survival or death. RNAi-mediated ablation of FBXL20 results in increased levels of PUMA as well as BAX, which further enhances the sensitivity of cancer cells to chemotherapeutic drugs. We showed that high level expression of FBXL20 in cancer cells reduces therapeutic drug-induced apoptosis and promotes chemoresistance. Overall, this study highlights the importance of targeting FBXL20 in cancers in conjunction with chemotherapy and may represent a promising anticancer strategy to overcome chemoresistance.
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Affiliation(s)
- Rajesh Kumar Manne
- Cancer Biology and Epigenetics Laboratory, National Centre for Cell Science, Pune, Maharashtra, India; Department of Biotechnology, S.P. Pune University, Pune, Maharashtra, India
| | - Yashika Agrawal
- Cancer Biology and Epigenetics Laboratory, National Centre for Cell Science, Pune, Maharashtra, India; Department of Biotechnology, S.P. Pune University, Pune, Maharashtra, India
| | - Sunil K Malonia
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Shahid Banday
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Sarathkumar Edachery
- Department of Biochemistry, K. S. Hegde Medical Academy, Nitte University, Mangalore, Karnataka, India
| | - Asha Patel
- Cancer Biology and Epigenetics Laboratory, National Centre for Cell Science, Pune, Maharashtra, India
| | - Avinash Kumar
- Cancer Biology and Epigenetics Laboratory, National Centre for Cell Science, Pune, Maharashtra, India
| | - Praveenkumar Shetty
- Department of Biochemistry, K. S. Hegde Medical Academy, Nitte University, Mangalore, Karnataka, India
| | - Manas Kumar Santra
- Cancer Biology and Epigenetics Laboratory, National Centre for Cell Science, Pune, Maharashtra, India.
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18
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Islam S, Dutta P, Chopra K, Rapole S, Chauhan R, Santra MK. FBXW8 regulates G1 and S phases of cell cycle progression by restricting β-TrCP1 function. FEBS J 2021; 288:5474-5497. [PMID: 33742524 DOI: 10.1111/febs.15828] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/21/2021] [Accepted: 03/18/2021] [Indexed: 11/30/2022]
Abstract
Sequential alteration in the expression levels of cell cycle regulatory proteins is crucial for faithful cell cycle progression to maintain the cellular homeostasis. F-box protein β-TrCP1 is known to control the expression levels of several important cell cycle regulatory proteins. However, how the function of β-TrCP1 is regulated in spatiotemporal manner during cell cycle progression remains elusive. Here, we show that expression levels of β-TrCP1 oscillate during cell cycle progression with a minimum level at the G1 and S phases of cell cycle. Using biochemical, flow cytometry, and immunofluorescence techniques, we found that oscillation of β-TrCP1 expression is controlled by another F-box protein FBXW8. FBXW8 directs the proteasomal degradation of β-TrCP1 in MAPK pathway-dependent manner. Interestingly, we found that the attenuation of β-TrCP1 by FBXW8 is important for Cdc25A-mediated cell cycle transition from G1 phase to S phase as well as DNA damage-free progression of S phase. Overall, our study reveals the intriguing molecular mechanism and significance of maintenance of β-TrCP1 levels during cell cycle progression by FBXW8-mediated proteasomal degradation.
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Affiliation(s)
- Sehbanul Islam
- Molecular Oncology Laboratory, National Centre for Cell Science, Pune, India.,Department of Biotechnology, Savitribai Phule Pune University, India
| | - Parul Dutta
- Molecular Oncology Laboratory, National Centre for Cell Science, Pune, India.,Department of Biotechnology, Savitribai Phule Pune University, India
| | - Kriti Chopra
- Laboratory of Structural Biology, National Centre for Cell Science, Pune, India
| | - Srikanth Rapole
- Proteomics Laboratory, National Centre for Cell Science, Pune, India
| | - Radha Chauhan
- Laboratory of Structural Biology, National Centre for Cell Science, Pune, India
| | - Manas Kumar Santra
- Molecular Oncology Laboratory, National Centre for Cell Science, Pune, India
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Waghela BN, Vaidya FU, Agrawal Y, Santra MK, Mishra V, Pathak C. Molecular insights of NADPH oxidases and its pathological consequences. Cell Biochem Funct 2020; 39:218-234. [PMID: 32975319 DOI: 10.1002/cbf.3589] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 08/18/2020] [Accepted: 09/01/2020] [Indexed: 12/13/2022]
Abstract
Reactive oxygen species (ROS), formed by the partial reduction of oxygen, were for a long time considered to be a byproduct of cellular metabolism. Since, increase in cellular levels of ROS results in oxidative stress leading to damage of nucleic acids, proteins, and lipids resulting in numerous pathological conditions; ROS was considered a bane for aerobic species. Hence, the discovery of NADPH oxidases (NOX), an enzyme family that specifically generates ROS as its prime product came as a surprise to redox biologists. NOX family proteins participate in various cellular functions including cell proliferation and differentiation, regulation of genes and protein expression, apoptosis, and host defence immunological response. Balanced expression and activation of NOX with subsequent production of ROS are critically important to regulate various genes and proteins to maintain homeostasis of the cell. However, dysregulation of NOX activation leading to enhanced ROS levels is associated with various pathophysiologies including diabetes, cardiovascular diseases, neurodegenerative diseases, ageing, atherosclerosis, and cancer. Although our current knowledge on NOX signifies its importance in the normal functioning of various cellular pathways; yet the choice of ROS producing enzymes which can tip the scale from homeostasis toward damage, as mediators of biological functions remain an oddity. Though the role of NOX in maintaining normal cellular functions is now deemed essential, yet its dysregulation leading to catastrophic events cannot be denied. Hence, this review focuses on the involvement of NOX enzymes in various pathological conditions imploring them as possible targets for therapies. SIGNIFICANCE OF THE STUDY: The NOXs are multi-subunit enzymes that generate ROS as a prime product. NOX generated ROS are usually regulated by various molecular factors and play a vital role in different physiological processes. The dysregulation of NOX activity is associated with pathological consequences. Recently, the dynamic proximity of NOX enzymes with different molecular signatures of pathologies has been studied extensively. It is essential to identify the precise role of NOX machinery in its niche during the progression of pathology. Although inhibition of NOX could be a promising approach for therapeutic interventions, it is critical to expand the current understanding of NOX's dynamicity and shed light on their molecular partners and regulators.
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Affiliation(s)
- Bhargav N Waghela
- School of Biological Sciences & Biotechnology, Indian Institute of Advanced Research, Gandhinagar, Gujarat, India
| | - Foram U Vaidya
- School of Biological Sciences & Biotechnology, Indian Institute of Advanced Research, Gandhinagar, Gujarat, India
| | - Yashika Agrawal
- Laboratory of Molecular Cancer Biology and Epigenetics, National Centre for Cell Science, Pune, Maharashtra, India
| | - Manas Kumar Santra
- Laboratory of Molecular Cancer Biology and Epigenetics, National Centre for Cell Science, Pune, Maharashtra, India
| | - Vinita Mishra
- School of Biological Sciences & Biotechnology, Indian Institute of Advanced Research, Gandhinagar, Gujarat, India
| | - Chandramani Pathak
- School of Biological Sciences & Biotechnology, Indian Institute of Advanced Research, Gandhinagar, Gujarat, India
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20
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Sivakrishna B, Shukla M, Santra MK, Pal S. Design, synthesis and cytotoxic evaluation of truncated 3'-deoxy- 3', 3' difluororibofuranosyl pyrimidine nucleosides. Carbohydr Res 2020; 497:108113. [PMID: 32858257 DOI: 10.1016/j.carres.2020.108113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 04/01/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 02/05/2023]
Abstract
Truncated 3'-deoxy- 3', 3' difluororibofuranosyl pyrimidine nucleoside derivatives were synthesized from d-ribose via β-apioribo pyrimidine nucleoside intermediates 11a-c. The synthetic approach signifies that truncation at C3' position of apioribose ring of 13a-c by oxidative cleavage of diols with Pb(OAc)4 and followed by fluorination with DAST as key steps. Cytotoxic evaluation of synthesized truncated nucleoside derivatives 16a-c and 19a-c were tested against MCF7 and MDA-MB-231 breast cancer cell lines. However, only 19a was shown minimal growth suppression activity on MDA-MB-231 cancer cell lines.
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Affiliation(s)
- Balija Sivakrishna
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha, 752050, India
| | - Meenakshi Shukla
- Cancer Biology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra, 411007, India
| | - Manas Kumar Santra
- Cancer Biology Laboratory, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra, 411007, India.
| | - Shantanu Pal
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha, 752050, India.
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21
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Akhtar N, Pradhan N, Barik GK, Chatterjee S, Ghosh S, Saha A, Satpati P, Bhattacharyya A, Santra MK, Manna D. Quinine-Based Semisynthetic Ion Transporters with Potential Antiproliferative Activities. ACS Appl Mater Interfaces 2020; 12:25521-25533. [PMID: 32425038 DOI: 10.1021/acsami.0c01259] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Synthetic ion transporters have attracted tremendous attention for their therapeutic potential against various ion-transport-related diseases, including cancer. Inspired by the structure and biological activities of natural products, we synthesized a small series of squaramide and thiourea derivatives of quinine and investigated their ion transport activities. The involvement of a quinuclidine moiety for the cooperative interactions of Cl- and H+ ions with the thiourea or squaramide moiety resulted in an effectual transport of these ions across membranes. The interference of ionic equilibrium by the potent Cl- ion carrier selectively induced cancer cell death by endorsing caspase-arbitrated apoptosis. In vivo assessment of the potent ionophore showed an efficient reduction in tumor growth with negligible immunotoxicity to other organs.
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Affiliation(s)
- Nasim Akhtar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Nirmalya Pradhan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | | | - Soumya Chatterjee
- Department of Zoology, University of Calcutta, Kolkata, West Bengal 700019, India
| | - Suvankar Ghosh
- Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Abhishek Saha
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Priyadarshi Satpati
- Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | | | | | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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22
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V. R, Gujar V, Pathan H, Islam S, Tawre M, Pardesi K, Santra MK, Ottoor D. Bioimaging Applications of Carbon dots (C. dots) and its Cystamine Functionalization for the Sensitive Detection of Cr(VI) in Aqueous Samples. J Fluoresc 2019; 29:1381-1392. [DOI: 10.1007/s10895-019-02448-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 10/01/2019] [Indexed: 01/05/2023]
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23
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Manna SC, Mistri S, Patra A, Mahish MK, Saren D, Manne RK, Santra MK, Zangrando E, Puschmann H. Synthesis, structure, DNA/protein binding, molecular docking and in vitro anticancer activity of two Schiff base coordinated copper(II) complexes. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.06.049] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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24
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Dutta P, Islam S, Choppara S, Sengupta P, Kumar A, Kumar A, Wani MR, Chatterjee S, Santra MK. The tumor suppressor FBXO31 preserves genomic integrity by regulating DNA replication and segregation through precise control of cyclin A levels. J Biol Chem 2019; 294:14879-14895. [PMID: 31413110 DOI: 10.1074/jbc.ra118.007055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 12/07/2018] [Revised: 08/09/2019] [Indexed: 11/06/2022] Open
Abstract
F-box protein 31 (FBXO31) is a reported putative tumor suppressor, and its inactivation due to loss of heterozygosity is associated with cancers of different origins. An emerging body of literature has documented FBXO31's role in preserving genome integrity following DNA damage and in the cell cycle. However, knowledge regarding the role of FBXO31 during normal cell-cycle progression is restricted to its functions during the G2/M phase. Interestingly, FBXO31 levels remain high even during the early G1 phase, a crucial stage for preparing the cells for DNA replication. Therefore, we sought to investigate the functions of FBXO31 during the G1 phase of the cell cycle. Here, using flow cytometric, biochemical, and immunofluorescence techniques, we show that FBXO31 is essential for maintaining optimum expression of the cell-cycle protein cyclin A for efficient cell-cycle progression. Stable FBXO31 knockdown led to atypical accumulation of cyclin A during the G1 phase, driving premature DNA replication and compromised loading of the minichromosome maintenance complex, resulting in replication from fewer origins and DNA double-strand breaks. Because of these inherent defects in replication, FBXO31-knockdown cells were hypersensitive to replication stress-inducing agents and displayed pronounced genomic instability. Upon entering mitosis, the cells defective in DNA replication exhibited a delay in the prometaphase-to-metaphase transition and anaphase defects such as lagging and bridging chromosomes. In conclusion, our findings establish that FBXO31 plays a pivotal role in preserving genomic integrity by maintaining low cyclin A levels during the G1 phase for faithful genome duplication and segregation.
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Affiliation(s)
- Parul Dutta
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra 411007, India.,Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Sehbanul Islam
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra 411007, India.,Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Srinadh Choppara
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra 411007, India.,Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | | | - Anil Kumar
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra 411007, India.,Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Avinash Kumar
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra 411007, India.,Arnold and Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, New York 11201
| | - Mohan R Wani
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | | | - Manas Kumar Santra
- National Centre for Cell Science, NCCS Complex, Ganeshkhind Road, Pune, Maharashtra 411007, India
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25
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Bhunia A, Mistri S, Manne RK, Santra MK, Manna SC. Synthesis, crystal structure, cytotoxicity study, DNA/protein binding and molecular docking of dinuclear copper(II) complexes. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.03.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Shinde P, Melinkeri S, Santra MK, Kale V, Limaye L. Autologous Hematopoietic Stem Cells Are a Preferred Source to Generate Dendritic Cells for Immunotherapy in Multiple Myeloma Patients. Front Immunol 2019; 10:1079. [PMID: 31164886 PMCID: PMC6536579 DOI: 10.3389/fimmu.2019.01079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 04/29/2019] [Indexed: 11/13/2022] Open
Abstract
In multiple myeloma (MM), dendritic cells (DCs), and their precursors are prone to malignant cell-mediated regulation of function leading to low efficacy of DC vaccine. DCs taken directly from MM patient's body or derived from monocytes are fewer in numbers and are also dysfunctional. Here, we investigated the functionality of Hematopoietic stem cell-derived DCs (SC-DCs) from MM patients. Mature-MM-SC-DCs showed all essential functions like antigen uptake, allogenic T cells simulation and migration comparable to those derived from healthy donor (HD) samples. A comparison of Mo-DCs and SC-DCs obtained from the same MM patients' samples revealed that the expression of IL-6 was higher in the precursors of Mo-DCs leading to their impaired migration. In addition, expression of CCR7 which is responsible for DCs migration was found to be lower in MM-Mo-DCs. The chromatin permissiveness as observed by H3K4me3 histone modification at the Ccr7 promoter in MM-Mo-DCs was significantly lower than those in MM-SC-DCs. Levels of Zbtb46- a hall mark DC transcription factor mRNA was also found to be reduced in MM-Mo-DCs. Cytotoxic T cells generated from MM-SC-DCs from autologous naïve T cells exhibited reduced antitumor activity because the T cells were exhausted. Blocking of CTLA-4 on autologous T cells could partially restore T cell proliferation and activation. Thus, a combination of MM-SC-DC vaccine and anti-CTLA-4 antibody may serve as a better candidate for immunotherapy of MM. This study has implications in increasing the efficacy of cancer immunotherapy in MM.
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Affiliation(s)
- Prajakta Shinde
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
| | - Sameer Melinkeri
- Blood and Marrow Transplant Unit, Deenanath Mangeshkar Hospital, Pune, India
| | - Manas Kumar Santra
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
| | - Vaijayanti Kale
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
| | - Lalita Limaye
- National Centre for Cell Science, Savitribai Phule Pune University Campus, Pune, India
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27
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Paul D, Islam S, Manne RK, Dinesh US, Malonia SK, Maity B, Boppana R, Rapole S, Shetty PK, Santra MK. F-box protein FBXO16 functions as a tumor suppressor by attenuating nuclear β-catenin function. J Pathol 2019; 248:266-279. [PMID: 30714168 PMCID: PMC6619347 DOI: 10.1002/path.5252] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 01/18/2019] [Accepted: 01/28/2019] [Indexed: 12/24/2022]
Abstract
Aberrant activation of β‐catenin has been implicated in a variety of human diseases, including cancer. In spite of significant progress, the regulation of active Wnt/β‐catenin‐signaling pathways is still poorly understood. In this study, we show that F‐box protein 16 (FBXO16) is a putative tumor suppressor. It is a component of the SCF (SKP1‐Cullin1‐F‐box protein) complex, which targets the nuclear β‐catenin protein to facilitate proteasomal degradation through the 26S proteasome. FBXO16 interacts physically with the C‐terminal domain of β‐catenin and promotes its lysine 48‐linked polyubiquitination. In addition, it inhibits epithelial‐to‐mesenchymal transition (EMT) by attenuating the level of β‐catenin. Therefore, depletion of FBXO16 leads to increased levels of β‐catenin, which then promotes cell invasion, tumor growth, and EMT of cancer cells. Furthermore, FBXO16 and β‐catenin share an inverse correlation of cellular expression in clinical breast cancer patient samples. In summary, we propose that FBXO16 functions as a putative tumor suppressor by forming an SCFFBXO16 complex that targets nuclear β‐catenin in a unique manner for ubiquitination and subsequent proteasomal degradation to prevent malignancy. This work suggests a novel therapeutic strategy against human cancers related to aberrant β‐catenin activation. © 2019 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Debasish Paul
- Cancer Biology division, National Centre for Cell Science, Pune, India.,Department of Biotechnology, Savitribai Phule Pune University, Pune, India
| | - Sehbanul Islam
- Cancer Biology division, National Centre for Cell Science, Pune, India.,Department of Biotechnology, Savitribai Phule Pune University, Pune, India
| | - Rajesh Kumar Manne
- Cancer Biology division, National Centre for Cell Science, Pune, India.,Department of Biotechnology, Savitribai Phule Pune University, Pune, India
| | - U S Dinesh
- Department of Biochemistry/Central Research Laboratory, SDM College of Medical Sciences and Hospital, Dharwad, India
| | - Sunil K Malonia
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA, USA
| | | | | | - Srikanth Rapole
- Cancer Biology division, National Centre for Cell Science, Pune, India
| | - Praveen Kumar Shetty
- Department of Biochemistry/Central Research Laboratory, SDM College of Medical Sciences and Hospital, Dharwad, India
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28
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V R, Misra S, Santra MK, Ottoor D. One pot green synthesis of C-dots from groundnuts and its application as Cr(VI) sensor and in vitro bioimaging agent. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.12.028] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Mondal A, Tripathy RK, Dutta P, Santra MK, Isab AA, Bielawski CW, Kisan HK, Chandra SK, Dinda J. Ru(II)-based antineoplastic: A “wingtip” N-heterocyclic carbene facilitates access to a new class of organometallics that are cytotoxic to common cancer cell lines. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4692] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ambarish Mondal
- Department of Chemistry; Utkal University; Vani Bihar Bhubaneswar 751004 Odisha India
| | - Rajat K. Tripathy
- Department of Chemistry; Utkal University; Vani Bihar Bhubaneswar 751004 Odisha India
| | - Parul Dutta
- National Centre for Cell Science; Pune 411007 Maharastra India
| | | | - Anvarhusein A. Isab
- Department of Chemistry; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - Christopher W. Bielawski
- Center for Multidimensional Carbon Materials (CMCM); Institute for Basic Science (IBS); Ulsan 44919 Republic of Korea
- Department of Chemistry; Ulsan National Institute of Science and Technology (UNIST); Ulsan 44919 Republic of Korea
- Department of Energy Engineering; Ulsan National Institute of Science and technology (UNIST); Ulsan 44919 Republic of Korea
| | - Hemanta K. Kisan
- Department of Chemistry; Utkal University; Vani Bihar Bhubaneswar 751004 Odisha India
| | - Swapan K. Chandra
- Department of Chemistry; Visva Bharati University; Santiniketan 731235 West Bengal India
| | - Joydev Dinda
- Department of Chemistry; Utkal University; Vani Bihar Bhubaneswar 751004 Odisha India
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30
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Choppara S, Ganga S, Manne R, Dutta P, Singh S, Santra MK. The SCF FBXO46 ubiquitin ligase complex mediates degradation of the tumor suppressor FBXO31 and thereby prevents premature cellular senescence. J Biol Chem 2018; 293:16291-16306. [PMID: 30171069 DOI: 10.1074/jbc.ra118.005354] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 08/14/2018] [Indexed: 01/10/2023] Open
Abstract
The tumor suppressor F-box protein 31 (FBXO31) is indispensable for maintaining genomic stability. Its levels drastically increase following DNA damage, leading to cyclin D1 and MDM2 degradation and G1 and G2/M arrest. Prolonged arrest in these phases leads to cellular senescence. Accordingly, FBXO31 needs to be kept at low basal levels in unstressed conditions for normal cell cycle progression during growth and development. However, the molecular mechanism maintaining these basal FBXO31 levels has remained unclear. Here, we identified the F-box family SCF-E3 ubiquitin ligase FBXO46 (SCFFBXO46) as an important proteasomal regulator of FBXO31 and found that FBXO46 helps maintain basal FBXO31 levels under unstressed conditions and thereby prevents premature senescence. Using molecular docking and mutational studies, we showed that FBXO46 recognizes an RXXR motif located at the FBXO31 C terminus to direct its polyubiquitination and thereby proteasomal degradation. Furthermore, FBXO46 depletion enhanced the basal levels of FBXO31, resulting in senescence induction. In response to genotoxic stress, ATM (ataxia telangiectasia-mutated) Ser/Thr kinase-mediated phosphorylation of FBXO31 at Ser-278 maintained FBXO31 levels. In contrast, activated ATM phosphorylated FBXO46 at Ser-21/Ser-67, leading to its degradation via FBXO31. Thus, ATM-catalyzed phosphorylation after DNA damage governs FBXO31 levels and FBXO46 degradation via a negative feedback loop. Collectively, our findings reveal that FBXO46 is a crucial proteasomal regulator of FBXO31 and thereby prevents senescence in normal growth conditions. They further indicate that FBXO46-mediated regulation of FBXO31 is abrogated following genotoxic stress to promote increased FBXO31 levels for maintenance of genomic stability.
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Affiliation(s)
- Srinadh Choppara
- From the National Centre for Cell Science, NCCS Complex and.,the Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Sankaran Ganga
- From the National Centre for Cell Science, NCCS Complex and
| | - Rajeshkumar Manne
- From the National Centre for Cell Science, NCCS Complex and.,the Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Parul Dutta
- From the National Centre for Cell Science, NCCS Complex and.,the Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Shailza Singh
- From the National Centre for Cell Science, NCCS Complex and
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31
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Mistri S, Patra A, Santra MK, Paul D, Zangrando E, Puschmann H, Manna SC. DNA/Protein Binding, Molecular Docking and Cytotoxicity Studies of Piperazinyl-Moiety-Based Copper(II) Complexes. ChemistrySelect 2018. [DOI: 10.1002/slct.201801757] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Soumen Mistri
- Department of Chemistry and Chemical Technology; Vidyasagar University; Midnapore 721102, West Bengal India
| | - Apu Patra
- Department of Chemistry and Chemical Technology; Vidyasagar University; Midnapore 721102, West Bengal India
| | - Manas Kumar Santra
- National Centre for Cell Science; NCCS Complex; Pune University Campus Ganeshkhind; Pune-411 007, Maharashtra India
| | - Debasish Paul
- National Centre for Cell Science; NCCS Complex; Pune University Campus Ganeshkhind; Pune-411 007, Maharashtra India
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences; University of Trieste; 34127 Trieste Italy
| | - Horst Puschmann
- Department of Chemistry; University of Durham; South Road, Durham DH1 3LE U.K
| | - Subal Chandra Manna
- Department of Chemistry and Chemical Technology; Vidyasagar University; Midnapore 721102, West Bengal India
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32
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Ghosh C, Gupta N, Mallick A, Santra MK, Basu S. Self-Assembled Glycosylated Chalcone–Boronic Acid Nanodrug Exhibits Anticancer Activity through Mitochondrial Impairment. ACS Appl Bio Mater 2018; 1:347-355. [DOI: 10.1021/acsabm.8b00089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chandramouli Ghosh
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra, India, 411008
| | - Neha Gupta
- Cancer and Epigenetic Lab, National Center for Cell Science (NCCS) Ganeshkhind, Pune, Maharashtra, India, 411007
| | - Abhik Mallick
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra, India, 411008
| | - Manas Kumar Santra
- Cancer and Epigenetic Lab, National Center for Cell Science (NCCS) Ganeshkhind, Pune, Maharashtra, India, 411007
| | - Sudipta Basu
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra, India, 411008
- Current address: Discipline of Chemistry, Indian Institute of Technology (IIT)-Gandhinagar, Palaj, Gandhinagar, Gujarat, India, 382355
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33
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Taye N, Alam A, Ghorai S, Chatterji DG, Parulekar A, Mogare D, Singh S, Sengupta P, Chatterjee S, Bhat MK, Santra MK, Salunkhe PB, Finston SK, Chattopadhyay S. SMAR1 inhibits Wnt/β-catenin signaling and prevents colorectal cancer progression. Oncotarget 2018; 9:21322-21336. [PMID: 29765542 PMCID: PMC5940383 DOI: 10.18632/oncotarget.25093] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 03/21/2018] [Indexed: 12/13/2022] Open
Abstract
Reduced expression of Scaffold/Matrix Attachment Region Binding Protein 1 (SMAR1) is associated with various cancers resulting in poor prognosis of the diseases. However, the precise underlying mechanism elucidating the loss of SMAR1 requires ongoing study. Here, we show that SMAR1 is highly downregulated during aberrant Wnt3a signaling due to proteasomal degradation and predicted poor prognosis of colorectal cancer. However, substitution mutation (Arginine and Lysine to Alanine) in the D-box elements of SMAR1 viz. "RCHL" and "RQRL" completely abrogated its proteasomal degradation despite Wnt3a activity. SMAR1 inhibited Wnt/β-catenin signaling by recruiting Histone deacetylase-5 to β-catenin promoter resulting in reduced cell migration and invasion. Consequently, reduced tumor sizes in in-vivo NOD-SCID mice were observed that strongly associated with suppression of β-catenin. However, loss of SMAR1 led to enriched H3K9 Acetylation in the β-catenin promoter that further increased Wnt/β-catenin signaling activities and enhanced colorectal cancer progression drastically. Using docking and isothermal titration calorimetric studies we show that small microbial peptides viz. AT-01C and AT-01D derived from Mycobacterium tuberculosis mask the D-box elements of SMAR1. These peptides stabilized SMAR1 expression that further inhibited metastatic SW480 colorectal cancer cell migration and invasion. Drastically reduced subcutaneous tumors were observed in in-vivo NOD-SCID mice upon administration of these peptides (25 mg/kg body weight) intraperitoneally. Taken together our structural studies, in-vitro and in-vivo results strongly suggest that the D-box elements of SMAR1 represent novel druggable targets, where the microbial peptides hold promise as novel colorectal cancer therapeutics.
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Affiliation(s)
- Nandaraj Taye
- National Centre for Cell Science, Pune 411 007, India
| | - Aftab Alam
- National Centre for Cell Science, Pune 411 007, India
| | | | | | | | - Devraj Mogare
- National Centre for Cell Science, Pune 411 007, India
| | | | - Pallabi Sengupta
- Department of Biophysics, Bose Institute, Kolkata 700 054, India
| | | | | | | | | | | | - Samit Chattopadhyay
- National Centre for Cell Science, Pune 411 007, India
- Indian Institute of Chemical Biology (CSIR), West Bengal, Kolkata 700 032, India
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34
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Gorai S, Paul D, Borah R, Haloi N, Santra MK, Manna D. Role of Cationic Groove and Hydrophobic Residues in Phosphatidylinositol-Dependent Membrane-Binding Properties of Tks5-Phox Homology Domain. ChemistrySelect 2018. [DOI: 10.1002/slct.201702558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Sukhamoy Gorai
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039, Assam India
| | - Debasish Paul
- National Centre for Cell Science; Pune 411007, Maharashtra India
| | - Rituparna Borah
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039, Assam India
| | - Nandan Haloi
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039, Assam India
| | | | - Debasis Manna
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039, Assam India
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35
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Das U, Pattanayak P, Santra MK, Chattopadhyay S. Synthesis of New Oxido-Vanadium Complexes: Catalytic Properties and Cytotoxicity. Journal of Chemical Research 2018. [DOI: 10.3184/174751918x15168821806597] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Reaction of 2,3-dihydroxy benzaldehyde with 2-({2-amino phenyl}diazenyl)phenol afforded the ligand 3-(2-(2-hydroxyphenyl)diazenyl)-4-alkylphenyliminomethyl)benzene-1,2-diol. Reaction of H2L with VOSO4. 5H2O gave the oxido-vanadium(IV) complexes [(L)VO], which exhibited a quasi-reversible oxidative cyclic voltammetric response in a V(IV)/V(V) oxidative process. The complexes act as catalysts in the oxidation of organic thioethers and bromination of phenol. Their cytotoxic properties were examined for three cancer cell lines.
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Affiliation(s)
- Uttam Das
- Department of Chemistry, University of Kalyani, Kalyani 741235, India
- Department of Chemistry, Kalyani Government Engineering College, Kalyani 741235, India
| | | | - Manas Kumar Santra
- Cancer Biology and Epigenetics Lab, National Center for Cell Science, Ganeshkhind, Pune 411007, India
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Jhulki L, Dutta P, Santra MK, Cardoso MH, Oshiro KGN, Franco OL, Bertolasi V, Isab AA, Bielawski CW, Dinda J. Synthesis and cytotoxic characteristics displayed by a series of Ag(i)-, Au(i)- and Au(iii)-complexes supported by a common N-heterocyclic carbene. NEW J CHEM 2018. [DOI: 10.1039/c8nj02008f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The design, synthesis and anticancer properties of a series of Ag(i), Au(i) and Au(iii)–NHC complexes supported by pyridyl[1,2-a]{2-acetylylphenylimidazol}-3-ylidene are described.
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Affiliation(s)
- Lalmohan Jhulki
- School of Applied Science
- Haldia Institute of Technology
- Haldia 721657
- India
| | - Parul Dutta
- National Centre for Cell Science
- Pune 411007
- India
| | | | - Marlon H. Cardoso
- Programa de Pós-Graduação em Patologia Molecular
- Faculdade de Medicina
- Universidade de Brasília
- Brasília-DF
- Brazil
| | - Karen G. N. Oshiro
- Programa de Pós-Graduação em Patologia Molecular
- Faculdade de Medicina
- Universidade de Brasília
- Brasília-DF
- Brazil
| | - Octávio L. Franco
- Programa de Pós-Graduação em Patologia Molecular
- Faculdade de Medicina
- Universidade de Brasília
- Brasília-DF
- Brazil
| | - Valerio Bertolasi
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Centro di Strutturistica Diffrattometrica
- Universita' di Ferrara
- Italy
| | - Anvarhusein A. Isab
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Christopher W. Bielawski
- Center for Multidimensional Carbon Materials (CMCM)
- Institute for Basic Science (IBS)
- Ulsan 44919
- Republic of Korea
- Department of Chemistry and Department of Energy Engineering
| | - Joydev Dinda
- Department of Chemistry
- Utkal University
- Bhubaneswar 751004
- India
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Meshram SN, Paul D, Manne R, Choppara S, Sankaran G, Agrawal Y, Santra MK. FBXO32 activates NF-κB through IκBα degradation in inflammatory and genotoxic stress. Int J Biochem Cell Biol 2017; 92:134-140. [PMID: 28970077 DOI: 10.1016/j.biocel.2017.09.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 05/24/2017] [Revised: 09/04/2017] [Accepted: 09/28/2017] [Indexed: 01/14/2023]
Abstract
In response to diverse stresses, the canonical NF-κB pathway gets activated primarily to protect the cells and maintain their genomic integrity. It activates the cell cycle checkpoints allowing the cells with limited damage to restore a normal life cycle. One of the key events in activation of the canonical NF-κB pathway is the selective proteasomal degradation of IκBα. It has been previously shown that F-box protein βTRCP1 has limited role in directing the proteasomal degradation of IκBα during stress conditions. Here, we report another member of F-box family proteins, FBXO32, as a potential activator of NF-κB signaling during genotoxic stress and inflammatory response. Following genotoxic or inflammatory stress, FBXO32 is stabilized, which leads to polyubiquitination and proteasome mediated degradation of IκBα. We also found that FBXO32 is required for physiological regulation of IκBα levels in unstressed cells. Thus, we decipher the new role of FBXO32 in regulation of NF-κB signaling pathway.
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Affiliation(s)
- Sachin N Meshram
- Laboratory of Molecular Cancer Biology and Epigenetics, National Centre for Cell Science, Ganeshkhind Road, Pune 411007, India; S. P. Pune University, Ganeshkhind Road, Pune 411007, India
| | - Debasish Paul
- Laboratory of Molecular Cancer Biology and Epigenetics, National Centre for Cell Science, Ganeshkhind Road, Pune 411007, India; S. P. Pune University, Ganeshkhind Road, Pune 411007, India
| | - Rajeshkumar Manne
- Laboratory of Molecular Cancer Biology and Epigenetics, National Centre for Cell Science, Ganeshkhind Road, Pune 411007, India; S. P. Pune University, Ganeshkhind Road, Pune 411007, India
| | - Srinadh Choppara
- Laboratory of Molecular Cancer Biology and Epigenetics, National Centre for Cell Science, Ganeshkhind Road, Pune 411007, India; S. P. Pune University, Ganeshkhind Road, Pune 411007, India
| | - Ganga Sankaran
- Laboratory of Molecular Cancer Biology and Epigenetics, National Centre for Cell Science, Ganeshkhind Road, Pune 411007, India
| | - Yashika Agrawal
- Laboratory of Molecular Cancer Biology and Epigenetics, National Centre for Cell Science, Ganeshkhind Road, Pune 411007, India; S. P. Pune University, Ganeshkhind Road, Pune 411007, India
| | - Manas Kumar Santra
- Laboratory of Molecular Cancer Biology and Epigenetics, National Centre for Cell Science, Ganeshkhind Road, Pune 411007, India.
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Rai A, Kapoor S, Naaz A, Kumar Santra M, Panda D. Enhanced stability of microtubules contributes in the development of colchicine resistance in MCF-7 cells. Biochem Pharmacol 2017; 132:38-47. [PMID: 28242250 DOI: 10.1016/j.bcp.2017.02.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 02/22/2017] [Indexed: 10/20/2022]
Abstract
Understanding the mechanism of resistance to tubulin-targeted anticancer drugs is important for improved chemotherapy. In this work, a colchicine-resistant MCF-7 cell line (MCF-7Col30) was generated by the gradual increment of colchicine treatment and the MCF-7Col30 showed ∼8-fold resistance towards colchicine. MCF-7Col30 cells showed ∼2.5-fold resistance against microtubule depolymerizing agents, vinblastine, and nocodazole. In contrast, it displayed more sensitivity towards paclitaxel, a microtubule-polymerizing agent. MCF-7 and MCF-7Col30 cells showed similar sensitivity towards cisplatin. Further, the level of P-glycoprotein did not increase in MCF-7Col30 cells. MCF-7Col30 cells resisted the microtubule depolymerizing effects of colchicine. The time-lapse imaging of individual microtubules in live cells showed that the dynamics of microtubules in MCF-7Col30 cells was suppressed as compared to the parent MCF-7 cells. The levels of tubulin acetylation and glutamylation increased in MCF-7Col30 cells than the parent MCF-7 cells suggesting that microtubules are stabilized in MCF-7Col30 cells. Interestingly, the level of βIII tubulin was increased by 2.3 folds whereas that of βII and βIV tubulin was decreased by 55 and 150%, respectively in MCF-7Col30 cells. The results suggested that the changes in the level of β-tubulin isoforms and the post-translational modifications of microtubules altered the stability and dynamics of microtubules and contributed to the development of colchicine-resistance in MCF-7 cells.
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Affiliation(s)
- Ankit Rai
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India
| | - Sonia Kapoor
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India
| | - Afsana Naaz
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India
| | - Manas Kumar Santra
- National Centre for Cell Science, University of Pune Campus, Ganeshkhind, Pune, Maharashtra 411007, India
| | - Dulal Panda
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India.
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Augustine T, Chaudhary P, Gupta K, Islam S, Ghosh P, Santra MK, Mitra D. Cyclin F/FBXO1 Interacts with HIV-1 Viral Infectivity Factor (Vif) and Restricts Progeny Virion Infectivity by Ubiquitination and Proteasomal Degradation of Vif Protein through SCF cyclin F E3 Ligase Machinery. J Biol Chem 2017; 292:5349-5363. [PMID: 28184007 PMCID: PMC5392680 DOI: 10.1074/jbc.m116.765842] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 02/09/2017] [Indexed: 12/22/2022] Open
Abstract
Cyclin F protein, also known as FBXO1, is the largest among all cyclins and oscillates in the cell cycle like other cyclins. Apart from being a G2/M cyclin, cyclin F functions as the substrate-binding subunit of SCFcyclin F E3 ubiquitin ligase. In a gene expression analysis performed to identify novel gene modulations associated with cell cycle dysregulation during HIV-1 infection in CD4+ T cells, we observed down-regulation of the cyclin F gene (CCNF). Later, using gene overexpression and knockdown studies, we identified cyclin F as negatively influencing HIV-1 viral infectivity without any significant impact on virus production. Subsequently, we found that cyclin F negatively regulates the expression of viral protein Vif (viral infectivity factor) at the protein level. We also identified a novel host-pathogen interaction between cyclin F and Vif protein in T cells during HIV-1 infection. Mutational analysis of a cyclin F-specific amino acid motif in the C-terminal region of Vif indicated rescue of the protein from cyclin F-mediated down-regulation. Subsequently, we showed that Vif is a novel substrate of the SCFcyclin F E3 ligase, where cyclin F mediates the ubiquitination and proteasomal degradation of Vif through physical interaction. Finally, we showed that cyclin F augments APOBEC3G expression through degradation of Vif to regulate infectivity of progeny virions. Taken together, our results demonstrate that cyclin F is a novel F-box protein that functions as an intrinsic cellular regulator of HIV-1 Vif and has a negative regulatory effect on the maintenance of viral infectivity by restoring APOBEC3G expression.
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Affiliation(s)
- Tracy Augustine
- From the National Centre for Cell Science, Pune, Maharashtra 411007, India and
| | - Priyanka Chaudhary
- From the National Centre for Cell Science, Pune, Maharashtra 411007, India and
| | - Kailash Gupta
- From the National Centre for Cell Science, Pune, Maharashtra 411007, India and
| | - Sehbanul Islam
- From the National Centre for Cell Science, Pune, Maharashtra 411007, India and
| | - Payel Ghosh
- the Bioinformatics Centre, Savitribai Phule Pune University, Pune, Maharashtra 411007, India
| | - Manas Kumar Santra
- From the National Centre for Cell Science, Pune, Maharashtra 411007, India and
| | - Debashis Mitra
- From the National Centre for Cell Science, Pune, Maharashtra 411007, India and
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Nusrat S, Zaidi N, Zaman M, Islam S, Ajmal MR, Siddiqi MK, Santra MK, Khan RH. Repositioning nordihydroguaiaretic acid as a potent inhibitor of systemic amyloidosis and associated cellular toxicity. Arch Biochem Biophys 2016; 612:78-90. [DOI: 10.1016/j.abb.2016.10.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 10/14/2016] [Accepted: 10/22/2016] [Indexed: 02/06/2023]
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Ghosh C, Gupta N, More P, Sengupta P, Mallick A, Santra MK, Basu S. Engineering and In VitroEvaluation of Acid Labile Cholesterol Tethered MG132 Nanoparticle for Targeting Ubiquitin-Proteasome System in Cancer. ChemistrySelect 2016. [DOI: 10.1002/slct.201601117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chandramouli Ghosh
- Department of Chemistry; Indian Institute of Science Education and Research (IISER)-Pune; Dr. Homi Bhabha Road, Pashan Pune 411008, Maharashtra India
| | - Neha Gupta
- Cancer and Epigenetics Lab; National Center for Cell Science (NCCS), Ganeshkhind; Pune 411007, Maharashtra India
| | - Piyush More
- Department of Chemistry; Indian Institute of Science Education and Research (IISER)-Pune; Dr. Homi Bhabha Road, Pashan Pune 411008, Maharashtra India
| | - Poulomi Sengupta
- Physical Chemistry Division; CSIR National Chemical Laboratory; Academy of Scientific & Innovative Research (AcSIR); Dr. Homi Bhaba Road Pune 411008, Maharashtra India
| | - Abhik Mallick
- Department of Chemistry; Indian Institute of Science Education and Research (IISER)-Pune; Dr. Homi Bhabha Road, Pashan Pune 411008, Maharashtra India
| | - Manas Kumar Santra
- Cancer and Epigenetics Lab; National Center for Cell Science (NCCS), Ganeshkhind; Pune 411007, Maharashtra India
| | - Sudipta Basu
- Department of Chemistry; Indian Institute of Science Education and Research (IISER)-Pune; Dr. Homi Bhabha Road, Pashan Pune 411008, Maharashtra India
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Paul D, Chanukuppa V, Reddy PJ, Taunk K, Adhav R, Srivastava S, Santra MK, Rapole S. Global proteomic profiling identifies etoposide chemoresistance markers in non-small cell lung carcinoma. J Proteomics 2016; 138:95-105. [DOI: 10.1016/j.jprot.2016.02.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 12/31/2015] [Accepted: 02/11/2016] [Indexed: 02/05/2023]
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Gorai S, Paul D, Haloi N, Borah R, Santra MK, Manna D. Mechanistic insights into the phosphatidylinositol binding properties of the pleckstrin homology domain of lamellipodin. Mol BioSyst 2016; 12:747-57. [DOI: 10.1039/c5mb00731c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lpd-PH domain strongly interacts with PI(3,4)P2containing liposome without any membrane penetration.
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Affiliation(s)
- Sukhamoy Gorai
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | | | - Nandan Haloi
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Rituparna Borah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | | | - Debasis Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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Gorai S, Bagdi PR, Borah R, Paul D, Santra MK, Khan AT, Manna D. Insights into the inhibitory mechanism of triazole-based small molecules on phosphatidylinositol-4,5-bisphosphate binding pleckstrin homology domain. Biochem Biophys Rep 2015; 2:75-86. [PMID: 29124147 PMCID: PMC5668642 DOI: 10.1016/j.bbrep.2015.05.007] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 05/18/2015] [Accepted: 05/19/2015] [Indexed: 12/11/2022] Open
Abstract
Background Phosphatidylinositol 4,5-bisphosphate [PI(4,5)P2] is an important regulator of several cellular processes and a precursor for other second messengers which are involved in cell signaling pathways. Signaling proteins preferably interact with PI(4,5)P2 through its pleckstrin homology (PH) domain. Efforts are underway to design small molecule-based antagonist, which can specifically inhibit the PI(4,5)P2/PH-domain interaction to establish an alternate strategy for the development of drug(s) for phosphoinositide signaling pathways. Methods Surface plasmon resonance, molecular docking, circular dichroism, competitive Förster resonance energy transfer, isothermal titration calorimetric analyses and liposome pull down assay were used. Results In this study, we employed 1,2,3-triazol-4-yl methanol containing small molecule (CIPs) as antagonists for PI(4,5)P2/PH-domain interaction and determined their inhibitory effect by using competitive-surface plasmon resonance analysis (IC50 ranges from 53 to 159 nM for PI(4,5)P2/PLCδ1-PH domain binding assay). We also used phosphatidylinositol 3,4,5-trisphosphate [PI(3,4,5)P3], phosphatidylinositol 3,4-bisphosphate [PI(3,4)P2], PI(4,5)P2 specific PH-domains to determine binding selectivity of the compounds. Various physicochemical analyses showed that the compounds have weak affect on fluidity of the model membrane but, strongly interact with the phospholipase C δ1 (PLCδ1)-PH domains. The 1,2,3-triazol-4-yl methanol moiety and nitro group of the compounds are essential for their exothermic interaction with the PH-domains. Potent compound can efficiently displace PLCδ1-PH domain from plasma membrane to cytosol in A549 cells. Conclusions Overall, our studies demonstrate that these compounds interact with the PIP-binding PH-domains and inhibit their membrane recruitment. General significance These results suggest specific but differential binding of these compounds to the PLCδ1-PH domain and emphasize the role of their structural differences in binding parameters. These triazole-based compounds could be directly used/further developed as potential inhibitor for PH domain-dependent enzyme activity.
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Affiliation(s)
- Sukhamoy Gorai
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Prasanta Ray Bagdi
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Rituparna Borah
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Debasish Paul
- National Center for Cell Science, Pune 411007, Maharashtra, India
| | | | - Abu Taleb Khan
- Alia University, DN 18, 8th Floor, Sector V, Kolkata 700091, India
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
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Bhunia A, Manna S, Mistri S, Paul A, Manne RK, Santra MK, Bertolasi V, Chandra Manna S. Synthesis, characterization, TDDFT calculation and biological activity of tetradentate ligand based square pyramidal Cu(ii) complexes. RSC Adv 2015. [DOI: 10.1039/c5ra12324k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fluorescent Cu(ii) compounds have been synthesized, and characterized by structure analyses and DFT/TD-DFT calculations. Compounds show catecholase and anticancer activities.
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Affiliation(s)
- Apurba Bhunia
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
| | - Soumen Manna
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
| | - Soumen Mistri
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
| | - Aparup Paul
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
| | | | | | - Valerio Bertolasi
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Centro di Strutturistica Diffrattometrica
- Università di Ferrara
- 44100 Ferrara
- Italy
| | - Subal Chandra Manna
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721102
- India
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Panda A, Islam S, Santra MK, Pal S. Lead tetraacetate mediated one pot oxidative cleavage and acetylation reaction: an approach to apio and homologated apio pyrimidine nucleosides and their anticancer activity. RSC Adv 2015. [DOI: 10.1039/c5ra19080k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
An efficient and versatile strategy towards apio and homologated apio pyrimidines has been described via one pot oxidative cleavage and acetylation using Pb(OAc)4.
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Affiliation(s)
- Amarendra Panda
- School of Basic Sciences Indian Institute of Technology Bhubaneswar
- Bhubaneswar
- India
| | - Sehbanul Islam
- Cancer Biology Laboratory
- National Centre for Cell Science
- Pune
- India
| | | | - Shantanu Pal
- School of Basic Sciences Indian Institute of Technology Bhubaneswar
- Bhubaneswar
- India
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Gorai S, Paul S, Sankaran G, Borah R, Santra MK, Manna D. Inhibition of phosphatidylinositol-3,4,5-trisphosphate binding to the AKT pleckstrin homology domain by 4-amino-1,2,5-oxadiazole derivatives. Med Chem Commun 2015. [DOI: 10.1039/c5md00260e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
4-Amino-1,2,5-oxadiazole derivatives has been developed as an inhibitor of AKT pleckstrin homology domain.
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Affiliation(s)
- Sukhamoy Gorai
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Saurav Paul
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | | | - Rituparna Borah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | | | - Debasis Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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Dinda J, Adhikary SD, Roymahapatra G, Nakka KK, Santra MK. Synthesis, structure, electrochemistry and cytotoxicity studies of Ru(II) and Pt(II)–N-heterocyclic carbene complexes of CNC-pincer ligand. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.12.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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49
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Tripathy SK, Surada RK, Manne RK, Mobin SM, Santra MK, Patra S. Synthesis, characterisation and biological activities of [(p-cym)RuX(pz4lut)]n+ and [{(p-cym)RuX}2(μ-pz4lut)]n+ (X = Cl, H2O and pz4lut = α,α,α′,α′-tetra(pyrazol-1-yl)-2,6-lutidine). Dalton Trans 2013; 42:14081-91. [DOI: 10.1039/c3dt51275d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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50
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Kumar P, Gorai S, Kumar Santra M, Mondal B, Manna D. DNA binding, nuclease activity and cytotoxicity studies of Cu(ii) complexes of tridentate ligands. Dalton Trans 2012; 41:7573-81. [DOI: 10.1039/c2dt30232b] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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