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Kumar G, C A. Natural products and their analogues acting against Mycobacterium tuberculosis: A recent update. Drug Dev Res 2023; 84:779-804. [PMID: 37086027 DOI: 10.1002/ddr.22063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/28/2023] [Accepted: 04/01/2023] [Indexed: 04/23/2023]
Abstract
Tuberculosis (TB) remains one of the deadliest infectious diseases caused by Mycobacterium tuberculosis (M.tb). It is responsible for significant causes of mortality and morbidity worldwide. M.tb possesses robust defense mechanisms against most antibiotic drugs and host responses due to their complex cell membranes with unique lipid molecules. Thus, the efficacy of existing front-line drugs is diminishing, and new and recurring cases of TB arising from multidrug-resistant M.tb are increasing. TB begs the scientific community to explore novel therapeutic avenues. A precise knowledge of the compounds with their mode of action could aid in developing new anti-TB agents that can kill latent and actively multiplying M.tb. This can help in the shortening of the anti-TB regimen and can improve the outcome of treatment strategies. Natural products have contributed several antibiotics for TB treatment. The sources of anti-TB drugs/inhibitors discussed in this work are target-based identification/cell-based and phenotypic screening from natural products. Some of the recently identified natural products derived leads have reached clinical stages of TB drug development, which include rifapentine, CPZEN-45, spectinamide-1599 and 1810. We believe these anti-TB agents could emerge as superior therapeutic compounds to treat TB over known Food and Drug Administration drugs.
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Affiliation(s)
- Gautam Kumar
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Telangana, India
| | - Amrutha C
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Telangana, India
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2
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Li X, Liu WX, Wang CC, Wei JX, Wu YQ, Xiao ZY, Li K, Li YX, Li LZ. Catalytic Asymmetric Diels-Alder Reaction of 2'-Hydroxychalcone as a Dienophile with a VANOL-Borate Ester Complex. ACS OMEGA 2023; 8:11588-11595. [PMID: 37008159 PMCID: PMC10061623 DOI: 10.1021/acsomega.3c00782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 02/23/2023] [Indexed: 06/19/2023]
Abstract
Numerous flavonoid Diels-Alder-type natural products have been isolated and received great attention from the synthetic community. Herein, we reported a catalytic strategy for an asymmetric Diels-Alder reaction of 2'-hydroxychalcone with a range of diene substrates using a chiral ligand-boron Lewis acid complex. This method enables the convenient synthesis of a wide range of cyclohexene skeletons in excellent yields with moderate to good enantioselectivities, which is critical to prepare natural product congeners for further biological studies.
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Affiliation(s)
- Xia Li
- Department
of Pharmacy, Logistics University of People’s
Armed Police Forces, Tianjin Key Laboratory for Prevention and Control
of Occupational and Environmental Hazard, Tianjin 300309, China
| | - Wen-Xiang Liu
- Department
of Pharmacy, Logistics University of People’s
Armed Police Forces, Tianjin 300309, China
| | - Cong-Cong Wang
- Department
of Health Services, Logistics University
of People’s Armed Police Forces, Tianjin 300309, China
| | - Jin-Xia Wei
- School
of Chinese Materia Medica, Tianjin University
of Traditional Chinese Medicine, Tianjin 3001617, China
| | - Yu-Qiang Wu
- Health
Team of Chaoyang Detachment of Liaoning People’s Armed Police
Corps, Chaoyang 122000, Liaoning, China
| | - Ze-Yun Xiao
- Department
of Pharmacy, Logistics University of People’s
Armed Police Forces, Tianjin 300309, China
| | - Kai Li
- Vocational
Education Center, Logistics University of
People’s Armed Police Forces, Tianjin 300309, China
| | - Ya-Xiao Li
- Department
of Pharmacy, Logistics University of People’s
Armed Police Forces, Tianjin Key Laboratory for Prevention and Control
of Occupational and Environmental Hazard, Tianjin 300309, China
| | - Ling-Zhi Li
- Department
of Pharmacy, Logistics University of People’s
Armed Police Forces, Tianjin 300309, China
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3
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Kalita E, Panda M, Rao A, Prajapati VK. Exploring the role of secretory proteins in the human infectious diseases diagnosis and therapeutics. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2023; 133:231-269. [PMID: 36707203 DOI: 10.1016/bs.apcsb.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Secretory proteins are playing important role during the host-pathogen interaction to develop the infection or protection into the cell. Pathogens developing infectious disease to human being are taken up by host macrophages or number of immune cells, play an important role in physiological, developmental and immunological function. At the same time, infectious agents are also secreting various proteins to neutralize the resistance caused by host cells and also helping the pathogens to develop the infection. Secretory proteins (secretome) are only developed at the time of host-pathogen interaction, therefore they become very important to develop the targeted and potential therapeutic strategies. Pathogen specific secretory proteins released during interaction with host cell provide opportunity to develop point of care and rapid diagnostic kits. Proteins secreted by pathogens at the time of interaction with host cell have also been found as immunogenic in nature and numbers of vaccines have been developed to control the spread of human infectious diseases. This chapter highlights the importance of secretory proteins in the development of diagnostic and therapeutic strategies to fight against human infectious diseases.
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Affiliation(s)
- Elora Kalita
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Ajmer, Rajasthan, India
| | - Mamta Panda
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Ajmer, Rajasthan, India
| | - Abhishek Rao
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Ajmer, Rajasthan, India
| | - Vijay Kumar Prajapati
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Ajmer, Rajasthan, India.
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Bacterial Protein Tyrosine Phosphatases as Possible Targets for Antimicrobial Therapies in Response to Antibiotic Resistance. Antioxidants (Basel) 2022; 11:antiox11122397. [PMID: 36552605 PMCID: PMC9774629 DOI: 10.3390/antiox11122397] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/21/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
The review is focused on the bacterial protein tyrosine phosphatases (PTPs) utilized by bacteria as virulence factors necessary for pathogenicity. The inhibition of bacterial PTPs could contribute to the arrest of the bacterial infection process. This mechanism could be utilized in the design of antimicrobial therapy as adjuvants to antibiotics. The review summaries knowledge on pathogenic bacterial protein tyrosine phosphatases (PTPs) involved in infection process, such as: PTPA and PTPB from Staphylococcus aureus and Mycobacterium tuberculosis; SptP from Salmonella typhimurium; YopH from Yersinia sp. and TbpA from Pseudomonas aeruginosa. The review focuses also on the potential inhibitory compounds of bacterial virulence factors and inhibitory mechanisms such as the reversible oxidation of tyrosine phosphatases.
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Tortora C, Pisano L, Vergine V, Ghirga F, Iazzetti A, Calcaterra A, Marković V, Botta B, Quaglio D. Synthesis, Biosynthesis, and Biological Activity of Diels-Alder Adducts from Morus Genus: An Update. Molecules 2022; 27:7580. [PMID: 36364405 PMCID: PMC9657834 DOI: 10.3390/molecules27217580] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/28/2023] Open
Abstract
The plants of the Moraceae family are producers of a great variety of polyphenolic natural products. Among these, the Diels-Alder type adducts (DAAs) are endowed with a unique cyclohexene scaffold, since they are biosynthesized from [4+2] cycloaddition of different polyphenolic precursors such as chalcones and dehydroprenyl polyphenols. To date, more than 150 DAAs have been isolated and characterized from Moraceous and related plants. The main source of DAAs is the mulberry root bark, also known as "Sang-Bai-Pi" in Traditional Chinese Medicine, but they have also been isolated from root bark, stem barks, roots, stems or twigs, leaves, and callus cultures of Moraceous and other related plants. Since 1980, many biological activities of DAAs have been identified, including anti-HIV, antimicrobial, anti-inflammatory, and anticancer ones. For these reasons, natural DAAs have been intensively investigated, and a lot of efforts have been made to study their biosynthesis and to establish practical synthetic access. In this review, we summarized all the updated knowledge on biosynthesis, chemoenzymatic synthesis, racemic and enantioselective total synthesis, and biological activity of natural DAAs from Moraceous and related plants.
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Affiliation(s)
- Carola Tortora
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Luca Pisano
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Valeria Vergine
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Francesca Ghirga
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Antonia Iazzetti
- Dipartimento di Scienze Biotecnologiche di Base Cliniche Intensivologiche e Perioperatorie, Campus di Roma, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Violeta Marković
- Department of Chemistry, Faculty of Science, University of Kragujevac, R. Domanovića 12, 34000 Kragujevac, Serbia
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
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6
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Luo SY, Zhu JY, Zou MF, Yin S, Tang GH. Mulberry Diels-Alder-type adducts: isolation, structure, bioactivity, and synthesis. NATURAL PRODUCTS AND BIOPROSPECTING 2022; 12:31. [PMID: 36050566 PMCID: PMC9436459 DOI: 10.1007/s13659-022-00355-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
Mulberry Diels-Alder-type adducts (MDAAs) are unique phenolic natural products biosynthetically derived from the intermolecular [4 + 2]-cycloaddition of dienophiles (mainly chalcones) and dehydroprenylphenol dienes, which are exclusively distributed in moraceous plants. A total of 166 MDAAs with diverse skeletons have been isolated and identified since 1980. Structurally, the classic MDAAs characterized by the chalcone-skeleton dienophiles can be divided into eight groups (Types A - H), while others with non-chalcone dienophiles or some variations of classic MDAAs are non-classic MDAAs (Type I). These compounds have attracted significant attention of natural products and synthetic chemists due to their complex architectures, remarkable biological activities, and synthetic challenges. The present review provides a comprehensive summary of the structural properties, bioactivities, and syntheses of MDAAs. Cited references were collected between 1980 and 2021 from the SciFinder, Web of Science, and China National Knowledge Internet (CNKI).
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Affiliation(s)
- Si-Yuan Luo
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Jun-Yu Zhu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Ming-Feng Zou
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Sheng Yin
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Gui-Hua Tang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, 510006, People's Republic of China.
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Chitti S, Nandikolla A, Khetmalis YM, Van Calster K, Kumar BVS, Kumar BK, Murugesan S, Cappoen D, Kondapalli CSVG. Design, Synthesis and Biological Evaluation of Novel Spiro-[chroman-2,4'-piperidin]-4-one Analogues as Anti-Tubercular Agents. Chem Biodivers 2022; 19:e202200304. [PMID: 35821618 DOI: 10.1002/cbdv.202200304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 07/12/2022] [Indexed: 11/06/2022]
Abstract
A series of novel spiro-[chromane-2,4'-piperidine]-4(3 H )-one derivatives were designed, synthesized and structures were confirmed by analytical methods viz., 1 H NMR, 13 C NMR and Mass spectrometry. Synthesized derivatives were evaluated for their anti-mycobacterial activity against Mycobacterium tuberculosis ( Mtb ) H37Ra strain. Among all the evaluated compounds, PS08 exhibited significant inhibition with MIC value of 3.72 μM while MIC values of the remaining compounds ranged from 7.68 to 230.42 μM in comparison to the standard drug INH (MIC 0.09 μM). The two most active compounds however showed acute cytotoxicity towards the human MRC-5 lung fibroblast cell line. The in-silico ADMET profiles of the titled compounds were predicted and found within the prescribed limits of the Lipinski and Jorgenson rules. Molecular docking study of the significantly active compound ( PS08 ) was also carried out after performing validation in order to understand the putative binding position of the test ligand at the active site of selected target protein Mtb tyrosine phosphatase (PtpB).
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Affiliation(s)
- Surendar Chitti
- Birla Institute of Technology & Science Pilani - Hyderabad Campus, Department of chemistry, Alwal, hyderabad, INDIA
| | - Adinarayana Nandikolla
- Birla Institute of Technology & Science Pilani - Hyderabad Campus, Department of chemistry, VYAS Bhavan, V169, Jawaha, 500078, Hyderabad, INDIA
| | - Yogesh Mahadu Khetmalis
- Birla Institute of Technology & Science Pilani - Hyderabad Campus, Department of chemistry, jawahar nagar, hyderabad, INDIA
| | - Kevin Van Calster
- University of Antwerp - City campus: Universiteit Antwerpen, Department of Pharmaceutical Sciences, Wilrijk, Wilrijk, BELGIUM
| | - Boddupalli Venkata Siva Kumar
- Birla Institute of Technology & Science Pilani - Hyderabad Campus, Department of chemistry, nacharam, hyderabad, INDIA
| | - Banoth Karan Kumar
- Birla Institute of Technology and Science - Pilani Campus: Birla Institute of Technology & Science Pilani, Department of Pharmacy, nacharam, hyderabad, INDIA
| | - Sankaranarayanan Murugesan
- Birla Institute of Technology and Science - Pilani Campus: Birla Institute of Technology & Science Pilani, Department of Pharmacy, pilani, Pilani, INDIA
| | - Davie Cappoen
- University of Antwerp - City campus: Universiteit Antwerpen, Department of Pharmaceutical Sciences, Wilrijk, Wilrijk, BELGIUM
| | - Chandra Sekhar Venkata Gowri Kondapalli
- Birla Institute of Technology & Science - Pilani, Hyderabad Campus, Chemistry Department, Jawahar Nagar, Shamirpet Mandal, Ranga Reddy District, 500 078, Hyderabad, INDIA
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Angelova VT, Pencheva T, Vassilev N, K-Yovkova E, Mihaylova R, Petrov B, Valcheva V. Development of New Antimycobacterial Sulfonyl Hydrazones and 4-Methyl-1,2,3-thiadiazole-Based Hydrazone Derivatives. Antibiotics (Basel) 2022; 11:antibiotics11050562. [PMID: 35625207 PMCID: PMC9137698 DOI: 10.3390/antibiotics11050562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/19/2022] [Accepted: 04/19/2022] [Indexed: 12/03/2022] Open
Abstract
Fifteen 4-methyl-1,2,3-thiadiazole-based hydrazone derivatives 3a–d and sulfonyl hydrazones 5a–k were synthesized. They were characterized by 1H-NMR, 13C NMR, and HRMS. Mycobacterium tuberculosis strain H37Rv was used to assess their antimycobacterial activity. All compounds demonstrated significant minimum inhibitory concentrations (MIC) from 0.07 to 0.32 µM, comparable to those of isoniazid. The cytotoxicity was evaluated using the standard MTT-dye reduction test against human embryonic kidney cells HEK-293T and mouse fibroblast cell line CCL-1. 4-Hydroxy-3-methoxyphenyl substituted 1,2,3-thiadiazole-based hydrazone derivative 3d demonstrated the highest antimycobacterial activity (MIC = 0.0730 µM) and minimal associated cytotoxicity against two normal cell lines (selectivity index SI = 3516, HEK-293, and SI = 2979, CCL-1). The next in order were sulfonyl hydrazones 5g and 5k with MIC 0.0763 and 0.0716 µM, respectively, which demonstrated comparable minimal cytotoxicity. All compounds were subjected to ADME/Tox computational predictions, which showed that all compounds corresponded to Lipinski’s Ro5, and none were at risk of toxicity. The suitable scores of molecular docking performed on two crystallographic structures of enoyl-ACP reductase (InhA) provide promising insight into possible interaction with the InhA receptor. The 4-methyl-1,2,3-thiadiazole-based hydrazone derivatives and sulfonyl hydrazones proved to be new classes of lead compounds having the potential of novel candidate antituberculosis drugs.
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Affiliation(s)
- Violina T. Angelova
- Department of Chemistry, Faculty of Pharmacy, Medical University, 1431 Sofia, Bulgaria;
- Correspondence: or (V.T.A.); (V.V.)
| | - Tania Pencheva
- Department of QSAR and Molecular Modeling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Nikolay Vassilev
- Laboratory “Nuclear Magnetic Resonance”, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Elena K-Yovkova
- Faculty of Computer Systems and Technologies, Technical University, 1756 Sofia, Bulgaria;
| | - Rositsa Mihaylova
- Laboratory “Drug Metabolism and Drug Toxicity”, Department “Pharmacology, Pharmacotherapy and Toxicology”, Faculty of Pharmacy, Medical University, 1431 Sofia, Bulgaria;
| | - Boris Petrov
- Department of Chemistry, Faculty of Pharmacy, Medical University, 1431 Sofia, Bulgaria;
| | - Violeta Valcheva
- Laboratory of Molecular Biology of Mycobacteria, Department of Infectious Microbiology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
- Correspondence: or (V.T.A.); (V.V.)
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Cazzaniga G, Mori M, Chiarelli LR, Gelain A, Meneghetti F, Villa S. Natural products against key Mycobacterium tuberculosis enzymatic targets: Emerging opportunities for drug discovery. Eur J Med Chem 2021; 224:113732. [PMID: 34399099 DOI: 10.1016/j.ejmech.2021.113732] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/15/2021] [Accepted: 07/28/2021] [Indexed: 11/16/2022]
Abstract
For centuries, natural products (NPs) have served as powerful therapeutics against a variety of human ailments. Nowadays, they still represent invaluable resources for the treatment of many diseases, including bacterial infections. After nearly three decades since the World Health Organization's (WHO) declaration of tuberculosis (TB) as a global health emergency, Mycobacterium tuberculosis (Mtb) continues to claim millions of lives, remaining among the leading causes of death worldwide. In the last years, several efforts have been devoted to shortening and improving treatment outcomes, and to overcoming the increasing resistance phenomenon. Nature has always provided a virtually unlimited source of bioactive molecules, which have inspired the development of new drugs. NPs are characterized by an exceptional chemical and structural diversity, the result of millennia of evolutionary responses to various stimuli. Thanks to their favorable structural features and their enzymatic origin, they are naturally prone to bind proteins and exhibit bioactivities. Furthermore, their worldwide distribution and ease of accessibility has contributed to promote investigations on their activity. Overall, these characteristics make NPs excellent models for the design of novel therapeutics. This review offers a critical and comprehensive overview of the most promising NPs, isolated from plants, fungi, marine species, and bacteria, endowed with inhibitory properties against traditional and emerging mycobacterial enzymatic targets. A selection of 86 compounds is here discussed, with a special emphasis on their biological activity, structure-activity relationships, and mechanism of action. Our study corroborates the antimycobacterial potential of NPs, substantiating their relevance in future drug discovery and development efforts.
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Affiliation(s)
- Giulia Cazzaniga
- Department of Pharmaceutical Sciences, University of Milan, via L. Mangiagalli 25, 20133, Milano, Italy
| | - Matteo Mori
- Department of Pharmaceutical Sciences, University of Milan, via L. Mangiagalli 25, 20133, Milano, Italy
| | - Laurent Roberto Chiarelli
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, via A. Ferrata 9, 27100, Pavia, Italy
| | - Arianna Gelain
- Department of Pharmaceutical Sciences, University of Milan, via L. Mangiagalli 25, 20133, Milano, Italy
| | - Fiorella Meneghetti
- Department of Pharmaceutical Sciences, University of Milan, via L. Mangiagalli 25, 20133, Milano, Italy.
| | - Stefania Villa
- Department of Pharmaceutical Sciences, University of Milan, via L. Mangiagalli 25, 20133, Milano, Italy
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SAVALAS LRT, LESTARİ A, MUNİRAH M, FARİDA S, SUHENDRA D, ASNAWATİ D, 'ARDHUHA J, SARI NİNGSİH B, SYAHRİ J. cis-2 and trans-2-eicosenoic Fatty Acids Inhibit Mycobacterium tuberculosis Virulence Factor Protein Tyrosine Phosphatase B. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2021. [DOI: 10.18596/jotcsa.896489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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11
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Ghirga F, Stefanelli R, Cavinato L, Lo Sciuto A, Corradi S, Quaglio D, Calcaterra A, Casciaro B, Loffredo MR, Cappiello F, Morelli P, Antonelli A, Rossolini GM, Mangoni M, Mancone C, Botta B, Mori M, Ascenzioni F, Imperi F. A novel colistin adjuvant identified by virtual screening for ArnT inhibitors. J Antimicrob Chemother 2021; 75:2564-2572. [PMID: 32514531 PMCID: PMC7443731 DOI: 10.1093/jac/dkaa200] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/31/2020] [Accepted: 04/21/2020] [Indexed: 12/20/2022] Open
Abstract
Background Colistin is a last-resort treatment option for many MDR Gram-negative bacteria. The covalent addition of l-aminoarabinose to the lipid A moiety of LPS is the main colistin resistance mechanism in the human pathogen Pseudomonas aeruginosa. Objectives Identification (by in silico screening of a chemical library) of potential inhibitors of ArnT, which catalyses the last committed step of lipid A aminoarabinosylation, and their validation in vitro as colistin adjuvants. Methods The available ArnT crystal structure was used for a docking-based virtual screening of an in-house library of natural products. The resulting putative ArnT inhibitors were tested in growth inhibition assays using a reference colistin-resistant P. aeruginosa strain. The most promising compound was further characterized for its range of activity, specificity and cytotoxicity. Additionally, the effect of the compound on lipid A aminoarabinosylation was verified by MS analyses of lipid A. Results A putative ArnT inhibitor (BBN149) was discovered by molecular docking and demonstrated to specifically potentiate colistin activity in colistin-resistant P. aeruginosa isolates, without relevant effect on colistin-susceptible strains. BBN149 also showed adjuvant activity against colistin-resistant Klebsiella pneumoniae and low toxicity to bronchial epithelial cells. Lipid A aminoarabinosylation was reduced in BBN149-treated cells, although only partially. Conclusions This study demonstrates that in silico screening targeting ArnT can successfully identify inhibitors of colistin resistance and provides a promising lead compound for the development of colistin adjuvants for the treatment of MDR bacterial infections.
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Affiliation(s)
- Francesca Ghirga
- Center for Life Nano Science@Sapienza, Italian Institute of Technology, Rome, Italy
| | - Roberta Stefanelli
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Rome, Italy.,Department of Sciences, 'Department of Excellence 2018 - 2022', Roma Tre University, Rome, Italy
| | - Luca Cavinato
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Rome, Italy
| | - Alessandra Lo Sciuto
- Department of Sciences, 'Department of Excellence 2018 - 2022', Roma Tre University, Rome, Italy
| | - Silvia Corradi
- Center for Life Nano Science@Sapienza, Italian Institute of Technology, Rome, Italy.,Department of Chemistry and Technology of Drugs, 'Department of Excellence 2018 - 2022', Sapienza University of Rome, Rome, Italy
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs, 'Department of Excellence 2018 - 2022', Sapienza University of Rome, Rome, Italy
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, 'Department of Excellence 2018 - 2022', Sapienza University of Rome, Rome, Italy
| | - Bruno Casciaro
- Center for Life Nano Science@Sapienza, Italian Institute of Technology, Rome, Italy
| | - Maria Rosa Loffredo
- Department of Biochemical Sciences, Sapienza University of Rome, Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Rome, Italy
| | - Floriana Cappiello
- Department of Biochemical Sciences, Sapienza University of Rome, Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Rome, Italy
| | - Patrizia Morelli
- Microbiology Laboratory, Giannina Gaslini Institute, Genoa, Italy
| | - Alberto Antonelli
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.,Clinical Microbiology and Virology Unit, Florence Careggi University Hospital, Florence, Italy
| | - Gian Maria Rossolini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.,Clinical Microbiology and Virology Unit, Florence Careggi University Hospital, Florence, Italy
| | - Marialuisa Mangoni
- Department of Biochemical Sciences, Sapienza University of Rome, Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Rome, Italy
| | - Carmine Mancone
- Department of Molecular Medicine, 'Department of Excellence 2018 - 2022', Sapienza University of Rome, Rome, Italy
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, 'Department of Excellence 2018 - 2022', Sapienza University of Rome, Rome, Italy
| | - Mattia Mori
- Department of Biotechnology, Chemistry and Pharmacy, 'Department of Excellence 2018 - 2022', University of Siena, Siena, Italy
| | - Fiorentina Ascenzioni
- Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, Laboratory affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Rome, Italy
| | - Francesco Imperi
- Department of Sciences, 'Department of Excellence 2018 - 2022', Roma Tre University, Rome, Italy
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12
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Active Components from Cassia abbreviata Prevent HIV-1 Entry by Distinct Mechanisms of Action. Int J Mol Sci 2021; 22:ijms22095052. [PMID: 34068829 PMCID: PMC8126241 DOI: 10.3390/ijms22095052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 01/21/2023] Open
Abstract
Cassia abbreviata is widely used in Sub-Saharan Africa for treating many diseases, including HIV-1 infection. We have recently described the chemical structures of 28 compounds isolated from an alcoholic crude extract of barks and roots of C. abbreviata, and showed that six bioactive compounds inhibit HIV-1 infection. In the present study, we demonstrate that the six compounds block HIV-1 entry into cells: oleanolic acid, palmitic acid, taxifolin, piceatannol, guibourtinidol-(4α→8)-epiafzelechin, and a novel compound named as cassiabrevone. We report, for the first time, that guibourtinidol-(4α→8)-epiafzelechin and cassiabrevone inhibit HIV-1 entry (IC50 of 42.47 µM and 30.96 µM, respectively), as well as that piceatannol interacts with cellular membranes. Piceatannol inhibits HIV-1 infection in a dual-chamber assay mimicking the female genital tract, as well as HSV infection, emphasizing its potential as a microbicide. Structure-activity relationships (SAR) showed that pharmacophoric groups of piceatannol are strictly required to inhibit HIV-1 entry. By a ligand-based in silico study, we speculated that piceatannol and norartocarpetin may have a very similar mechanism of action and efficacy because of the highly comparable pharmacophoric and 3D space, while guibourtinidol-(4α→8)-epiafzelechin and cassiabrevone may display a different mechanism. We finally show that cassiabrevone plays a major role of the crude extract of CA by blocking the binding activity of HIV-1 gp120 and CD4.
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13
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Rankine-Wilson LI, Shapira T, Sao Emani C, Av-Gay Y. From infection niche to therapeutic target: the intracellular lifestyle of Mycobacterium tuberculosis. MICROBIOLOGY (READING, ENGLAND) 2021; 167:001041. [PMID: 33826491 PMCID: PMC8289223 DOI: 10.1099/mic.0.001041] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 02/15/2021] [Indexed: 12/16/2022]
Abstract
Mycobacterium tuberculosis (Mtb) is an obligate human pathogen killing millions of people annually. Treatment for tuberculosis is lengthy and complicated, involving multiple drugs and often resulting in serious side effects and non-compliance. Mtb has developed numerous complex mechanisms enabling it to not only survive but replicate inside professional phagocytes. These mechanisms include, among others, overcoming the phagosome maturation process, inhibiting the acidification of the phagosome and inhibiting apoptosis. Within the past decade, technologies have been developed that enable a more accurate understanding of Mtb physiology within its intracellular niche, paving the way for more clinically relevant drug-development programmes. Here we review the molecular biology of Mtb pathogenesis offering a unique perspective on the use and development of therapies that target Mtb during its intracellular life stage.
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Affiliation(s)
| | - Tirosh Shapira
- Division of Infectious Disease, Department of Medicine, The University of British Columbia, Vancouver, Canada
| | - Carine Sao Emani
- Division of Infectious Disease, Department of Medicine, The University of British Columbia, Vancouver, Canada
| | - Yossef Av-Gay
- Department of Microbiology & Immunology, The University of British Columbia, Vancouver, Canada
- Division of Infectious Disease, Department of Medicine, The University of British Columbia, Vancouver, Canada
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14
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Baptista R, Bhowmick S, Shen J, Mur LAJ. Molecular Docking Suggests the Targets of Anti-Mycobacterial Natural Products. Molecules 2021; 26:475. [PMID: 33477495 PMCID: PMC7831053 DOI: 10.3390/molecules26020475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/06/2021] [Accepted: 01/11/2021] [Indexed: 11/16/2022] Open
Abstract
Tuberculosis (TB) is a major global threat, mostly due to the development of antibiotic-resistant forms of Mycobacterium tuberculosis, the causal agent of the disease. Driven by the pressing need for new anti-mycobacterial agents several natural products (NPs) have been shown to have in vitro activities against M. tuberculosis. The utility of any NP as a drug lead is augmented when the anti-mycobacterial target(s) is unknown. To suggest these, we used a molecular reverse docking approach to predict the interactions of 53 selected anti-mycobacterial NPs against known "druggable" mycobacterial targets ClpP1P2, DprE1, InhA, KasA, PanK, PknB and Pks13. The docking scores/binding free energies were predicted and calculated using AutoDock Vina along with physicochemical and structural properties of the NPs, using PaDEL descriptors. These were compared to the established inhibitor (control) drugs for each mycobacterial target. The specific interactions of the bisbenzylisoquinoline alkaloids 2-nortiliacorinine, tiliacorine and 13'-bromotiliacorinine against the targets PknB and DprE1 (-11.4, -10.9 and -9.8 kcal·mol-1; -12.7, -10.9 and -10.3 kcal·mol-1, respectively) and the lignan α-cubebin and Pks13 (-11.0 kcal·mol-1) had significantly superior docking scores compared to controls. Our approach can be used to suggest predicted targets for the NP to be validated experimentally, but these in silico steps are likely to facilitate drug optimization.
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Affiliation(s)
- Rafael Baptista
- Institute of Biological, Environmental and Rural Sciences, Penglais Campus, Aberystwyth University, Aberystwyth, Wales SY23 2DA, UK; (R.B.); (S.B.)
| | - Sumana Bhowmick
- Institute of Biological, Environmental and Rural Sciences, Penglais Campus, Aberystwyth University, Aberystwyth, Wales SY23 2DA, UK; (R.B.); (S.B.)
| | - Jianying Shen
- Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Luis A. J. Mur
- Institute of Biological, Environmental and Rural Sciences, Penglais Campus, Aberystwyth University, Aberystwyth, Wales SY23 2DA, UK; (R.B.); (S.B.)
- Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
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15
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Ghirga F, Quaglio D, Mori M, Cammarone S, Iazzetti A, Goggiamani A, Ingallina C, Botta B, Calcaterra A. A unique high-diversity natural product collection as a reservoir of new therapeutic leads. Org Chem Front 2021. [DOI: 10.1039/d0qo01210f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We review the successful application of computer-aided methods to screen a unique and high-diversity in house collection library composed of around 1000 individual natural products.
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Affiliation(s)
- Francesca Ghirga
- Center For Life Nano Science@Sapienza
- Istituto Italiano di Tecnologia
- 00161 Rome
- Italy
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Mattia Mori
- Department of Biotechnology
- Chemistry and Pharmacy
- “Department of Excellence 2018–2022”
- University of Siena
- 53100 Siena
| | - Silvia Cammarone
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Antonia Iazzetti
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Antonella Goggiamani
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Cinzia Ingallina
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs
- “Department of Excellence 2018–2022”
- The Sapienza University of Rome
- 00185 Rome
- Italy
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16
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Therapeutic Targeting of Protein Tyrosine Phosphatases from Mycobacterium tuberculosis. Microorganisms 2020; 9:microorganisms9010014. [PMID: 33374544 PMCID: PMC7822160 DOI: 10.3390/microorganisms9010014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/17/2020] [Accepted: 12/21/2020] [Indexed: 12/18/2022] Open
Abstract
Tuberculosis (TB) is an airborne infectious disease caused by Mycobacterium tuberculosis (Mtb). According to the World Health Organization, an estimated 10 million people developed TB in 2018. The occurrence of drug-resistant TB demands therapeutic agents with novel mechanisms of action. Antivirulence is an alternative strategy that targets bacterial virulence factors instead of central growth pathways to treat disease. Mycobacterium protein tyrosine phosphatases, mPTPA and mPTPB, are secreted by Mtb into the cytoplasm of macrophages and are required for survival and growth of infection within the host. Here we present recent advances in understanding the roles of mPTPA and mPTPB in the pathogenesis of TB. We also focus on potent, selective, and well-characterized small molecule inhibitors reported in the last decade for mPTPA and mPTPB.
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17
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Chen D, Liu L, Lu Y, Chen S. Identification of fusarielin M as a novel inhibitor of Mycobacterium tuberculosis protein tyrosine phosphatase B (MptpB). Bioorg Chem 2020; 106:104495. [PMID: 33293055 DOI: 10.1016/j.bioorg.2020.104495] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/09/2020] [Accepted: 11/19/2020] [Indexed: 11/29/2022]
Abstract
The secreted Mycobacterium tuberculosis (Mtb) protein tyrosine phosphatase B (MptpB) is an essential virulence factor required for the intracellular survival of Mtb within host macrophages. MptpB has become a promising target for the development of novel anti-tuberculosis (TB) drugs. In this study, two new fusarielins, fusarielins M (1) and N (2), and a biogenetically related known compound, fusarielin G (3) were isolated from the marine-derived fungus Fusarium graminearum SYSU-MS5127. Their inhibitory effects on MptpB were evaluated. Among these compounds, fusarielin M substantially inhibited MptpB with a half-maximal inhibitory concentration (IC50) of 1.05 ± 0.08 μM, and an inhibition constant (Ki) of 1.03 ± 0.39 μM. Surface plasmon resonance analysis was used to characterize the interaction between fusarielin M and MptpB in vitro. Fusarielin M also exhibited cellular activity in blocking MptpB-mediated Erk1/2 and p38 inactivation in macrophages. Importantly, fusarielin M (20 μM) substantially reduced intracellular mycobacterial growth within macrophages, causing a 62% reduction in the bacterial burden. The binding mode of fusarielin M was further explored via molecular docking which suggested that fusarielin M binds to the active site of MptpB, forming a hydrogen bond with the side chain of Asp165; this is unique in the P-loop of MptpB compared to conventional human PTPs. The contact between fusarielin M and Asp165 in the catalytic loop provides a potential basis for inhibitor selectivity. Therefore, fusarielin M shows great potential as an anti-TB drug candidate.
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Affiliation(s)
- Dongni Chen
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519000, China
| | - Lan Liu
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519000, China
| | - Yongjun Lu
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; Biomedical Center of Sun Yat-sen University, Guangzhou 510275, China
| | - Senhua Chen
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519000, China.
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18
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Quaglio D, Corradi S, Erazo S, Vergine V, Berardozzi S, Sciubba F, Cappiello F, Crestoni ME, Ascenzioni F, Imperi F, Delle Monache F, Mori M, Loffredo MR, Ghirga F, Casciaro B, Botta B, Mangoni ML. Structural Elucidation and Antimicrobial Characterization of Novel Diterpenoids from Fabiana densa var. ramulosa. ACS Med Chem Lett 2020; 11:760-765. [PMID: 32435382 DOI: 10.1021/acsmedchemlett.9b00605] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 01/29/2020] [Indexed: 12/20/2022] Open
Abstract
Novel diterpenoids were isolated from the extracts of Fabiana densa var. ramulosa and found to display a selective activity against Gram-positive bacterial strains with negligible cytotoxicity toward human keratinocytes. This study highlighted the role played by the acidic group at C18 of the tetracyclic ent-beyerene scaffold for antibacterial effects and how the length and flexibility of the alkyl chain between the two carbonyl groups are crucial factors to increase the antimicrobial activity of the molecules, supporting the development of natural products from F. densa and their derivatives for treatment of microbial infections.
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Affiliation(s)
- Deborah Quaglio
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Silvia Corradi
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
- Center For Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161 Rome, Italy
| | - Silvia Erazo
- Department of Pharmacological and Toxicological Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Santiago, Chile
| | - Valeria Vergine
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Simone Berardozzi
- Department of Chemistry and Applied Biosciences, ETH Zürich, Rämistrasse 101, 8092 Zürich, Switzerland
| | - Fabio Sciubba
- Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Floriana Cappiello
- Department of Biochemical Sciences, Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, P.le Aldo Moro 5 00185, Rome, Italy
| | - Maria Elisa Crestoni
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Fiorentina Ascenzioni
- Department of Biology and Biotechnology Charles Darwin, Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00161 Rome, Italy
| | | | | | - Mattia Mori
- Department of Biotechnology, Chemistry and Pharmacy, “Department of Excellence 2018−2022”, University of Siena, via Aldo Moro 2, 53100 Siena, Italy
| | - Maria Rosa Loffredo
- Department of Biochemical Sciences, Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, P.le Aldo Moro 5 00185, Rome, Italy
| | - Francesca Ghirga
- Center For Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161 Rome, Italy
| | - Bruno Casciaro
- Center For Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena, 291, 00161 Rome, Italy
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, “Department of Excellence 2018−2022”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Maria Luisa Mangoni
- Department of Biochemical Sciences, Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, P.le Aldo Moro 5 00185, Rome, Italy
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19
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Njoroge M, Kaur G, Espinoza-Moraga M, Wasuna A, Dziwornu GA, Seldon R, Taylor D, Okombo J, Warner DF, Chibale K. Semisynthetic Antimycobacterial C-3 Silicate and C-3/C-21 Ester Derivatives of Fusidic Acid: Pharmacological Evaluation and Stability Studies in Liver Microsomes, Rat Plasma, and Mycobacterium tuberculosis culture. ACS Infect Dis 2019; 5:1634-1644. [PMID: 31309823 DOI: 10.1021/acsinfecdis.9b00208] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Fusidic acid (FA), a natural product fusidane triterpene-based antibiotic with unique structural features, is active in vitro against Mycobacterium tuberculosis, the causative agent of tuberculosis (TB). While possessing good pharmacokinetics in man, FA is rapidly metabolized in rodents, thus complicating proof-of-concept studies in this model. Toward the repositioning of FA as an anti-TB agent, we herein describe the synthesis, activity, and metabolism of FA and semisynthesized ester derivatives in rat liver microsomes, rat plasma, and mycobacterial cell culture. FA and derivative molecules with a free C-3 OH underwent species-specific metabolism to the corresponding 3-OH epimer, 3-epifusidic acid (3-epiFA). FA was also metabolized in rat plasma to form FA lactone. These additional routes of metabolism may contribute to the more rapid clearance of FA observed in rodents. C-3 alkyl and aryl esters functioned as classic prodrugs of FA, being hydrolyzed to FA in microsomes, plasma, and Mycobacterium tuberculosis culture. In contrast, C-3 silicate esters and C-21 esters were inert to hydrolysis and so did not act as prodrugs. The antimycobacterial activity of the C-3 silicate esters was comparable to that of FA, and these compounds were stable in microsomes and plasma, identifying them as potential candidates for evaluation in a rodent model of tuberculosis.
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Affiliation(s)
- Mathew Njoroge
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
| | - Gurminder Kaur
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
| | | | - Antonina Wasuna
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
| | | | - Ronnett Seldon
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
- Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa
| | - Dale Taylor
- Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa
| | - John Okombo
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
| | - Digby F. Warner
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
- SAMRC/NHLS/UCT Molecular Mycobacteriology Research Unit, DST/NRF Centre of Excellence for Biomedical TB Research, Department of Pathology and Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Rondebosch 7701, South Africa
- Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town, Rondebosch 7701, South Africa
| | - Kelly Chibale
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
- Drug Discovery and Development Centre (H3D), University of Cape Town, Rondebosch 7701, South Africa
- South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
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20
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Huang IS, Zimba PV. Cyanobacterial bioactive metabolites-A review of their chemistry and biology. HARMFUL ALGAE 2019; 86:139-209. [PMID: 31358273 DOI: 10.1016/j.hal.2019.05.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/14/2018] [Accepted: 11/16/2018] [Indexed: 06/10/2023]
Abstract
Cyanobacterial blooms occur when algal densities exceed baseline population concentrations. Cyanobacteria can produce a large number of secondary metabolites. Odorous metabolites affect the smell and flavor of aquatic animals, whereas bioactive metabolites cause a range of lethal and sub-lethal effects in plants, invertebrates, and vertebrates, including humans. Herein, the bioactivity, chemistry, origin, and biosynthesis of these cyanobacterial secondary metabolites were reviewed. With recent revision of cyanobacterial taxonomy by Anagnostidis and Komárek as part of the Süβwasserflora von Mitteleuropa volumes 19(1-3), names of many cyanobacteria that produce bioactive compounds have changed, thereby confusing readers. The original and new nomenclature are included in this review to clarify the origins of cyanobacterial bioactive compounds. Due to structural similarity, the 157 known bioactive classes produced by cyanobacteria have been condensed to 55 classes. This review will provide a basis for more formal procedures to adopt a logical naming system. This review is needed for efficient management of water resources to understand, identify, and manage cyanobacterial harmful algal bloom impacts.
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Affiliation(s)
- I-Shuo Huang
- Center for Coastal Studies, Texas A&M University-Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA.
| | - Paul V Zimba
- Center for Coastal Studies, Texas A&M University-Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
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21
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Washburn A, Abdeen S, Ovechkina Y, Ray AM, Stevens M, Chitre S, Sivinski J, Park Y, Johnson J, Hoang QQ, Chapman E, Parish T, Johnson SM. Dual-targeting GroEL/ES chaperonin and protein tyrosine phosphatase B (PtpB) inhibitors: A polypharmacology strategy for treating Mycobacterium tuberculosis infections. Bioorg Med Chem Lett 2019; 29:1665-1672. [PMID: 31047750 DOI: 10.1016/j.bmcl.2019.04.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/20/2019] [Accepted: 04/23/2019] [Indexed: 12/13/2022]
Abstract
Current treatments for Mycobacterium tuberculosis infections require long and complicated regimens that can lead to patient non-compliance, increasing incidences of antibiotic-resistant strains, and lack of efficacy against latent stages of disease. Thus, new therapeutics are needed to improve tuberculosis standard of care. One strategy is to target protein homeostasis pathways by inhibiting molecular chaperones such as GroEL/ES (HSP60/10) chaperonin systems. M. tuberculosis has two GroEL homologs: GroEL1 is not essential but is important for cytokine-dependent granuloma formation, while GroEL2 is essential for survival and likely functions as the canonical housekeeping chaperonin for folding proteins. Another strategy is to target the protein tyrosine phosphatase B (PtpB) virulence factor that M. tuberculosis secretes into host cells to help evade immune responses. In the present study, we have identified a series of GroEL/ES inhibitors that inhibit M. tuberculosis growth in liquid culture and biochemical function of PtpB in vitro. With further optimization, such dual-targeting GroEL/ES and PtpB inhibitors could be effective against all stages of tuberculosis - actively replicating bacteria, bacteria evading host cell immune responses, and granuloma formation in latent disease - which would be a significant advance to augment current therapeutics that primarily target actively replicating bacteria.
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Affiliation(s)
- Alex Washburn
- Indiana University School of Medicine, Department of Biochemistry and Molecular Biology, 635 Barnhill Dr., Indianapolis, IN 46202, United States
| | - Sanofar Abdeen
- Indiana University School of Medicine, Department of Biochemistry and Molecular Biology, 635 Barnhill Dr., Indianapolis, IN 46202, United States
| | - Yulia Ovechkina
- Infectious Disease Research Institute, 1616 Eastlake Ave E, Seattle, WA 98102, United States
| | - Anne-Marie Ray
- Indiana University School of Medicine, Department of Biochemistry and Molecular Biology, 635 Barnhill Dr., Indianapolis, IN 46202, United States
| | - Mckayla Stevens
- Indiana University School of Medicine, Department of Biochemistry and Molecular Biology, 635 Barnhill Dr., Indianapolis, IN 46202, United States
| | - Siddhi Chitre
- Indiana University School of Medicine, Department of Biochemistry and Molecular Biology, 635 Barnhill Dr., Indianapolis, IN 46202, United States
| | - Jared Sivinski
- The University of Arizona, College of Pharmacy, Department of Pharmacology and Toxicology, 1703 E. Mabel St., PO Box 210207, Tucson, AZ 85721, United States
| | - Yangshin Park
- Indiana University School of Medicine, Department of Biochemistry and Molecular Biology, 635 Barnhill Dr., Indianapolis, IN 46202, United States; Stark Neurosciences Research Institute, Indiana University School of Medicine, 320 W. 15th Street, Suite 414, Indianapolis, IN 46202, United States; Department of Neurology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN 46202, United States
| | - James Johnson
- Infectious Disease Research Institute, 1616 Eastlake Ave E, Seattle, WA 98102, United States
| | - Quyen Q Hoang
- Indiana University School of Medicine, Department of Biochemistry and Molecular Biology, 635 Barnhill Dr., Indianapolis, IN 46202, United States; Stark Neurosciences Research Institute, Indiana University School of Medicine, 320 W. 15th Street, Suite 414, Indianapolis, IN 46202, United States; Department of Neurology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN 46202, United States
| | - Eli Chapman
- The University of Arizona, College of Pharmacy, Department of Pharmacology and Toxicology, 1703 E. Mabel St., PO Box 210207, Tucson, AZ 85721, United States
| | - Tanya Parish
- Infectious Disease Research Institute, 1616 Eastlake Ave E, Seattle, WA 98102, United States
| | - Steven M Johnson
- Indiana University School of Medicine, Department of Biochemistry and Molecular Biology, 635 Barnhill Dr., Indianapolis, IN 46202, United States.
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22
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Docking- and pharmacophore-based virtual screening for the identification of novel Mycobacterium tuberculosis protein tyrosine phosphatase B (MptpB) inhibitor with a thiobarbiturate scaffold. Bioorg Chem 2019; 85:229-239. [DOI: 10.1016/j.bioorg.2018.12.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/23/2018] [Accepted: 12/29/2018] [Indexed: 01/15/2023]
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23
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Huang IS, Zimba PV. Cyanobacterial bioactive metabolites-A review of their chemistry and biology. HARMFUL ALGAE 2019; 83:42-94. [PMID: 31097255 DOI: 10.1016/j.hal.2018.11.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/14/2018] [Accepted: 11/16/2018] [Indexed: 06/09/2023]
Abstract
Cyanobacterial blooms occur when algal densities exceed baseline population concentrations. Cyanobacteria can produce a large number of secondary metabolites. Odorous metabolites affect the smell and flavor of aquatic animals, whereas bioactive metabolites cause a range of lethal and sub-lethal effects in plants, invertebrates, and vertebrates, including humans. Herein, the bioactivity, chemistry, origin, and biosynthesis of these cyanobacterial secondary metabolites were reviewed. With recent revision of cyanobacterial taxonomy by Anagnostidis and Komárek as part of the Süβwasserflora von Mitteleuropa volumes 19(1-3), names of many cyanobacteria that produce bioactive compounds have changed, thereby confusing readers. The original and new nomenclature are included in this review to clarify the origins of cyanobacterial bioactive compounds. Due to structural similarity, the 157 known bioactive classes produced by cyanobacteria have been condensed to 55 classes. This review will provide a basis for more formal procedures to adopt a logical naming system. This review is needed for efficient management of water resources to understand, identify, and manage cyanobacterial harmful algal bloom impacts.
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Affiliation(s)
- I-Shuo Huang
- Center for Coastal Studies, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA.
| | - Paul V Zimba
- Center for Coastal Studies, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
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24
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Sens L, de Souza ACA, Pacheco LA, Menegatti ACO, Mori M, Mascarello A, Nunes RJ, Terenzi H. Synthetic thiosemicarbazones as a new class of Mycobacterium tuberculosis protein tyrosine phosphatase A inhibitors. Bioorg Med Chem 2018; 26:5742-5750. [DOI: 10.1016/j.bmc.2018.10.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 10/01/2018] [Accepted: 10/26/2018] [Indexed: 10/28/2022]
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25
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Mascarello A, Orbem Menegatti AC, Calcaterra A, Martins PGA, Chiaradia-Delatorre LD, D'Acquarica I, Ferrari F, Pau V, Sanna A, De Logu A, Botta M, Botta B, Terenzi H, Mori M. Naturally occurring Diels-Alder-type adducts from Morus nigra as potent inhibitors of Mycobacterium tuberculosis protein tyrosine phosphatase B. Eur J Med Chem 2018; 144:277-288. [DOI: 10.1016/j.ejmech.2017.11.087] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 11/14/2017] [Accepted: 11/27/2017] [Indexed: 12/18/2022]
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26
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Cevatemre B, Erkısa M, Aztopal N, Karakas D, Alper P, Tsimplouli C, Sereti E, Dimas K, Armutak EII, Gurevin EG, Uvez A, Mori M, Berardozzi S, Ingallina C, D'Acquarica I, Botta B, Ozpolat B, Ulukaya E. A promising natural product, pristimerin, results in cytotoxicity against breast cancer stem cells in vitro and xenografts in vivo through apoptosis and an incomplete autopaghy in breast cancer. Pharmacol Res 2017; 129:500-514. [PMID: 29197639 DOI: 10.1016/j.phrs.2017.11.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 11/22/2017] [Accepted: 11/22/2017] [Indexed: 12/19/2022]
Abstract
Several natural products have been suggested as effective agents for the treatment of cancer. Given the important role of CSCs (Cancer Stem Cells) in cancer, which is a trendy hypothesis, it is worth investigating the effects of pristimerin on CSCs as well as on the other malignant cells (MCF-7 and MDA-MB-231) of breast cancer. The anti-growth activity of pristimerin against MCF-7 and MCF-7s (cancer stem cell enriched population) cells was investigated by real time viability monitorization (xCELLigence System®) and ATP assay, respectively. Mode of cell death was evaluated using electron and fluorescence microscopies, western blotting (autophagy, apoptosis and ER-stress related markers) and flow cytometry (annexin-V staining, caspase 3/7 activity, BCL-2 and PI3K expressions). Pristimerin showed an anti-growth effect on cancer cells and cancer stem cells with IC50 values ranging at 0.38-1.75μM. It inhibited sphere formation at relatively lower doses (<1.56μM). Apoptosis was induced in MCF-7 and MCF-7s cells. In addition, extensive cytoplasmic vacuolation was observed, implying an incompleted autophagy as evidenced by the increase of autophagy-related proteins (p62 and LC3-II) with an unfolded protein response (UPR). Pristimerin inhibited the growth of MCF-7 and MDA-MB-231-originated xenografts in NOD.CB17-Prkdcscid/J mice. In mice, apoptosis was further confirmed by cleavage of PARP, activation of caspase 3 and/or 7 and TUNEL staining. Taken together, pristimerin shows cytotoxic activity on breast cancer both in vitro and in vivo. It seems to represent a robust promising agent for the treatment of breast cancer. Pristimerin's itself or synthetic novel derivatives should be taken into consideration for novel potent anticancer agent(s).
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Affiliation(s)
- Buse Cevatemre
- Uludag University, Faculty of Arts and Sciences, Department of Biology, Bursa, Turkey
| | - Merve Erkısa
- Uludag University, Faculty of Arts and Sciences, Department of Biology, Bursa, Turkey; Istinye University, Faculty of Medicine, Department of Clinical Biochemistry, Istanbul, Turkey
| | - Nazlihan Aztopal
- Uludag University, Faculty of Arts and Sciences, Department of Biology, Bursa, Turkey; Istinye University, Faculty of Medicine, Department of Clinical Biochemistry, Istanbul, Turkey
| | - Didem Karakas
- Uludag University, Faculty of Arts and Sciences, Department of Biology, Bursa, Turkey; Istinye University, Faculty of Medicine, Department of Clinical Biochemistry, Istanbul, Turkey
| | - Pınar Alper
- Uludag University, Faculty of Arts and Sciences, Department of Biology, Bursa, Turkey; Istinye University, Faculty of Medicine, Department of Clinical Biochemistry, Istanbul, Turkey
| | - Chrisiida Tsimplouli
- Department of Pharmacology, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Evangelia Sereti
- Department of Pharmacology, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Konstantinos Dimas
- Department of Pharmacology, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Elif I Ikitimur Armutak
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Istanbul University, 34320, Istanbul, Turkey
| | - Ebru Gurel Gurevin
- Department of Biology, Faculty of Science, Istanbul University, 34134, Istanbul, Turkey
| | - Ayca Uvez
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Istanbul University, 34320, Istanbul, Turkey
| | - Mattia Mori
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, viale Regina Elena 291, 00161 Roma, Italy
| | - Simone Berardozzi
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, viale Regina Elena 291, 00161 Roma, Italy; Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Roma, piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Cinzia Ingallina
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, viale Regina Elena 291, 00161 Roma, Italy; Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Roma, piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Ilaria D'Acquarica
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Roma, piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Bruno Botta
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Roma, piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Bulent Ozpolat
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Engin Ulukaya
- Istinye University, Faculty of Medicine, Department of Clinical Biochemistry, Istanbul, Turkey.
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27
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Inhibitors of Mycobacterium marinum virulence identified in a Dictyostelium discoideum host model. PLoS One 2017; 12:e0181121. [PMID: 28727774 PMCID: PMC5519057 DOI: 10.1371/journal.pone.0181121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 06/26/2017] [Indexed: 12/21/2022] Open
Abstract
Tuberculosis remains one of the major threats to public health worldwide. Given the prevalence of multi drug resistance (MDR) in Mycobacterium tuberculosis strains, there is a strong need to develop new anti-mycobacterial drugs with modes of action distinct from classical antibiotics. Inhibitors of mycobacterial virulence might target new molecular processes and may represent a potential new therapeutic alternative. In this study, we used a Dictyostelium discoideum host model to assess virulence of Mycobacterium marinum and to identify compounds inhibiting mycobacterial virulence. Among 9995 chemical compounds, we selected 12 inhibitors of mycobacterial virulence that do not inhibit mycobacterial growth in synthetic medium. Further analyses revealed that 8 of them perturbed functions requiring an intact mycobacterial cell wall such as sliding motility, bacterial aggregation or cell wall permeability. Chemical analogs of two compounds were analyzed. Chemical modifications altered concomitantly their effect on sliding motility and on mycobacterial virulence, suggesting that the alteration of the mycobacterial cell wall caused the loss of virulence. We characterized further one of the selected compounds and found that it inhibited the ability of mycobacteria to replicate in infected cells. Together these results identify new antimycobacterial compounds that represent new tools to unravel the molecular mechanisms controlling mycobacterial pathogenicity. The isolation of compounds with anti-virulence activity is the first step towards developing new antibacterial treatments.
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28
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Mori M, Tottone L, Quaglio D, Zhdanovskaya N, Ingallina C, Fusto M, Ghirga F, Peruzzi G, Crestoni ME, Simeoni F, Giulimondi F, Talora C, Botta B, Screpanti I, Palermo R. Identification of a novel chalcone derivative that inhibits Notch signaling in T-cell acute lymphoblastic leukemia. Sci Rep 2017; 7:2213. [PMID: 28526832 PMCID: PMC5438367 DOI: 10.1038/s41598-017-02316-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 04/10/2017] [Indexed: 12/17/2022] Open
Abstract
Notch signaling is considered a rational target in the therapy of several cancers, particularly those harbouring Notch gain of function mutations, including T-cell acute lymphoblastic leukemia (T-ALL). Although currently available Notch-blocking agents are showing anti-tumor activity in preclinical studies, they are not effective in all the patients and often cause severe side-effects, limiting their widespread therapeutic use. Here, by functional and biological analysis of the most representative molecules of an in house library of natural products, we have designed and synthetized the chalcone-derivative 8 possessing Notch inhibitory activity at low micro molar concentration in T-ALL cell lines. Structure-activity relationships were afforded for the chalcone scaffold. Short term treatments with compound 8 resulted in a dose-dependent decrease of Notch signaling activity, halted cell cycle progression and induced apoptosis, thus affecting leukemia cell growth. Taken together, our data indicate that 8 is a novel Notch inhibitor, candidate for further investigation and development as an additional therapeutic option against Notch-dependent cancers.
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Affiliation(s)
- Mattia Mori
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome, 00161, Italy
| | - Luca Tottone
- Department of Molecular Medicine, Sapienza University of Rome, Rome, 00161, Italy
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, Rome, 00185, Italy
| | - Nadezda Zhdanovskaya
- Department of Molecular Medicine, Sapienza University of Rome, Rome, 00161, Italy
| | - Cinzia Ingallina
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, Rome, 00185, Italy
| | - Marisa Fusto
- Department of Molecular Medicine, Sapienza University of Rome, Rome, 00161, Italy
| | - Francesca Ghirga
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome, 00161, Italy
| | - Giovanna Peruzzi
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome, 00161, Italy
| | - Maria Elisa Crestoni
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, Rome, 00185, Italy
| | - Fabrizio Simeoni
- Department of Molecular Medicine, Sapienza University of Rome, Rome, 00161, Italy
- Cancer Research UK Manchester Institute, The University of Manchester, Manchester, M20 4BX, UK
| | - Francesca Giulimondi
- Department of Molecular Medicine, Sapienza University of Rome, Rome, 00161, Italy
| | - Claudio Talora
- Department of Molecular Medicine, Sapienza University of Rome, Rome, 00161, Italy
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, Rome, 00185, Italy.
| | - Isabella Screpanti
- Department of Molecular Medicine, Sapienza University of Rome, Rome, 00161, Italy.
- Istituto Pasteur Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, 00161, Italy.
| | - Rocco Palermo
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome, 00161, Italy.
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29
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Pasricha S, Sharma D, Ojha H, Gahlot P, Pathak M, Basu M, Chawla R, Singhal S, Singh A, Goel R, Kukreti S, Shukla S. Luminescence, circular dichroism and
in silico
studies of binding interaction of synthesized naphthylchalcone derivatives with bovine serum albumin. LUMINESCENCE 2017; 32:1252-1262. [DOI: 10.1002/bio.3319] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 12/07/2016] [Accepted: 02/22/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Sharda Pasricha
- Department of Chemistry Sri Venkateswara College, University of Delhi Delhi India
| | - Deepti Sharma
- Division of CBRN Defence Institute of Nuclear Medicine and Allied Sciences Delhi India
| | - Himanshu Ojha
- Division of CBRN Defence Institute of Nuclear Medicine and Allied Sciences Delhi India
| | - Pragya Gahlot
- Department of Chemistry Sri Venkateswara College, University of Delhi Delhi India
| | | | - Mitra Basu
- Division of CBRN Defence Institute of Nuclear Medicine and Allied Sciences Delhi India
| | - Raman Chawla
- Division of CBRN Defence Institute of Nuclear Medicine and Allied Sciences Delhi India
| | - Sugandha Singhal
- Division of CBRN Defence Institute of Nuclear Medicine and Allied Sciences Delhi India
| | - Anju Singh
- Nucleic Acid Research Laboratory, Department of Chemistry University of Delhi Delhi India
| | - Rajeev Goel
- Division of CBRN Defence Institute of Nuclear Medicine and Allied Sciences Delhi India
| | - Shrikant Kukreti
- Nucleic Acid Research Laboratory, Department of Chemistry University of Delhi Delhi India
| | - Shefali Shukla
- Department of Chemistry Sri Venkateswara College, University of Delhi Delhi India
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30
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Anti-tubercular drug discovery: in silico implications and challenges. Eur J Pharm Sci 2017; 104:1-15. [PMID: 28341614 DOI: 10.1016/j.ejps.2017.03.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 03/08/2017] [Accepted: 03/19/2017] [Indexed: 12/18/2022]
Abstract
Tuberculosis (TB) has been reported as a major public health concern, especially in the developing countries. WHO report on tuberculosis 2016 shows a high mortality rate caused by TB leading to 1.8 million deaths worldwide (including deaths due to TB in HIV positive individuals), which is one of the top 10 causes of mortality in 2015. However, the main therapy used for the treatment of TB is still the Direct Observed Therapy Short-course (DOTS) that consists of four main first-line drugs. Due to the prolonged and unorganized use of these drugs, Mycobacterium tuberculosis (Mtb) has developed drug-resistance against them. To overcome this drug-resistance, efforts are continuously being made to develop new therapeutics. New drug-targets of Mtb are pursued by the researchers to develop their inhibitors. For this, new methodologies that comprise of the computational drug designing techniques are vigorously applied. A major limitation that is found with these techniques is the inability of the newly identified target-based inhibitors to inhibit the whole cell bacteria. A foremost factor for this limitation is the inability of these inhibitors to penetrate the bacterial cell wall. In this regard, various strategies to overcome this limitation have been discussed in detail in this review, along with new targets and new methodologies. A bunch of in silico tools available for the prediction of physicochemical properties that need to be explored to deal with the permeability issue of the Mtb inhibitors has also been discussed.
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31
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Cevatemre B, Botta B, Mori M, Berardozzi S, Ingallina C, Ulukaya E. The plant-derived triterpenoid tingenin B is a potent anticancer agent due to its cytotoxic activity on cancer stem cells of breast cancer in vitro. Chem Biol Interact 2016; 260:248-255. [DOI: 10.1016/j.cbi.2016.10.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 10/03/2016] [Indexed: 10/20/2022]
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32
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Abstract
Tuberculosis is an infectious disease associated with significant mortality and morbidity worldwide, particularly in developing countries. The rise of antibiotic resistance in Mycobacterium tuberculosis (Mtb) urgently demands the development of new drug leads to tackle resistant strains. Fragment-based methods have recently emerged at the forefront of pharmaceutical development as a means to generate more effective lead structures, via the identification of fragment molecules that form weak but high quality interactions with the target biomolecule and subsequent fragment optimization. This review highlights a number of novel inhibitors of Mtb targets that have been developed through fragment-based approaches in recent years.
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33
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Iovine V, Benni I, Sabia R, D'Acquarica I, Fabrizi G, Botta B, Calcaterra A. Total Synthesis of (±)-Kuwanol E. JOURNAL OF NATURAL PRODUCTS 2016; 79:2495-2503. [PMID: 27656763 DOI: 10.1021/acs.jnatprod.6b00350] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The total synthesis of the Diels-Alder-type adducts (±)-kuwanol E and the heptamethyl ether derivative of (±)-kuwanon Y has been accomplished via a convergent strategy involving 2'-hydroxychalcone 6 or 9 and dehydroprenylstilbene 7, in nine steps. The synthesis features, as a key step, a Lewis acid-mediated biomimetic intermolecular Diels-Alder [4+2] cycloaddition for the construction of the cyclohexene skeleton with three stereogenic centers. Notably, the endo/exo diastereoselectivity of the reaction proved to be temperature-controlled.
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Affiliation(s)
- Valentina Iovine
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia , Viale Regina Elena 291, 00161 Roma, Italy
| | - Irene Benni
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
| | - Rocchina Sabia
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
| | - Ilaria D'Acquarica
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
| | - Giancarlo Fabrizi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
| | - Bruno Botta
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia , Viale Regina Elena 291, 00161 Roma, Italy
| | - Andrea Calcaterra
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia , Viale Regina Elena 291, 00161 Roma, Italy
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34
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Rofe AP, Davis LJ, Whittingham JL, Latimer-Bowman EC, Wilkinson AJ, Pryor PR. The Rhodococcus equi virulence protein VapA disrupts endolysosome function and stimulates lysosome biogenesis. Microbiologyopen 2016; 6. [PMID: 27762083 PMCID: PMC5387311 DOI: 10.1002/mbo3.416] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 09/09/2016] [Accepted: 09/20/2016] [Indexed: 12/11/2022] Open
Abstract
Rhodococcus equi (R. equi) is an important pulmonary pathogen in foals that often leads to the death of the horse. The bacterium harbors a virulence plasmid that encodes numerous virulence‐associated proteins (Vaps) including VapA that is essential for intracellular survival inside macrophages. However, little is known about the precise function of VapA. Here, we demonstrate that VapA causes perturbation to late endocytic organelles with swollen endolysosome organelles having reduced Cathepsin B activity and an accumulation of LBPA, LC3 and Rab7. The data are indicative of a loss of endolysosomal function, which leads cells to upregulate lysosome biogenesis to compensate for the loss of functional endolysosomes. Although there is a high degree of homology of the core region of VapA to other Vap proteins, only the highly conserved core region of VapA, and not VapD of VapG, gives the observed effects on endolysosomes. This is the first demonstration of how VapA works and implies that VapA aids R. equi survival by reducing the impact of lysosomes on phagocytosed bacteria.
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Affiliation(s)
- Adam P Rofe
- Department of Biology, Wentworth Way, University of York, York, UK
| | - Luther J Davis
- Cambridge Institute for Medical Research and Department of Clinical Biochemistry, Addenbrooke's Hospital, University of Cambridge, Cambridge
| | - Jean L Whittingham
- Structural Biology Laboratory, Department of Chemistry, University of York, York, UK
| | - Elizabeth C Latimer-Bowman
- Cambridge Institute for Medical Research and Department of Clinical Biochemistry, Addenbrooke's Hospital, University of Cambridge, Cambridge
| | - Anthony J Wilkinson
- Structural Biology Laboratory, Department of Chemistry, University of York, York, UK
| | - Paul R Pryor
- Department of Biology, Wentworth Way, University of York, York, UK.,Hull York Medical School, University of York, York, UK
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35
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Sharma AK, Arora D, Singh LK, Gangwal A, Sajid A, Molle V, Singh Y, Nandicoori VK. Serine/Threonine Protein Phosphatase PstP of Mycobacterium tuberculosis Is Necessary for Accurate Cell Division and Survival of Pathogen. J Biol Chem 2016; 291:24215-24230. [PMID: 27758870 DOI: 10.1074/jbc.m116.754531] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Indexed: 02/06/2023] Open
Abstract
Protein phosphatases play vital roles in phosphorylation-mediated cellular signaling. Although there are 11 serine/threonine protein kinases in Mycobacterium tuberculosis, only one serine/threonine phosphatase, PstP, has been identified. Although PstP has been biochemically characterized and multiple in vitro substrates have been identified, its physiological role has not yet been elucidated. In this study, we have investigated the impact of PstP on cell growth and survival of the pathogen in the host. Overexpression of PstP led to elongated cells and partially compromised survival. We find that depletion of PstP is detrimental to cell survival, eventually leading to cell death. PstP depletion results in elongated multiseptate cells, suggesting a role for PstP in regulating cell division events. Complementation experiments performed with PstP deletion mutants revealed marginally compromised survival, suggesting that all of the domains, including the extracellular domain, are necessary for complete rescue. On the other hand, the catalytic activity of PstP is absolutely essential for the in vitro growth. Mice infection experiments establish a definitive role for PstP in pathogen survival within the host. Depletion of PstP from established infections causes pathogen clearance, indicating that the continued presence of PstP is necessary for pathogen survival. Taken together, our data suggest an important role for PstP in establishing and maintaining infection, possibly via the modulation of cell division events.
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Affiliation(s)
- Aditya K Sharma
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi-110007, India.,the Academy of Scientific and Innovative Research (AcSIR), CSIR-IGIB, Delhi-110025, India
| | - Divya Arora
- From the National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi-110067, India
| | - Lalit K Singh
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi-110007, India
| | - Aakriti Gangwal
- the Department of Zoology, University of Delhi Delhi-110007, India
| | - Andaleeb Sajid
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi-110007, India
| | - Virginie Molle
- the Laboratoire de Dynamique des Interactions Membranaires Normales et Pathologiques, Université Montpellier 2, CNRS, UMR 5235, Montpellier, France, and
| | - Yogendra Singh
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi-110007, India, .,the Department of Zoology, University of Delhi Delhi-110007, India
| | - Vinay Kumar Nandicoori
- From the National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi-110067, India,
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36
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Infante P, Alfonsi R, Ingallina C, Quaglio D, Ghirga F, D'Acquarica I, Bernardi F, Di Magno L, Canettieri G, Screpanti I, Gulino A, Botta B, Mori M, Di Marcotullio L. Inhibition of Hedgehog-dependent tumors and cancer stem cells by a newly identified naturally occurring chemotype. Cell Death Dis 2016; 7:e2376. [PMID: 27899820 PMCID: PMC5059851 DOI: 10.1038/cddis.2016.195] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 05/24/2016] [Accepted: 06/08/2016] [Indexed: 12/11/2022]
Abstract
Hedgehog (Hh) inhibitors have emerged as valid tools in the treatment of a wide range of cancers. Indeed, aberrant activation of the Hh pathway occurring either by ligand-dependent or -independent mechanisms is a key driver in tumorigenesis. The smoothened (Smo) receptor is one of the main upstream transducers of the Hh signaling and is a validated target for the development of anticancer compounds, as underlined by the FDA-approved Smo antagonist Vismodegib (GDC-0449/Erivedge) for the treatment of basal cell carcinoma. However, Smo mutations that confer constitutive activity and drug resistance have emerged during treatment with Vismodegib. For this reason, the development of new effective Hh inhibitors represents a major challenge for cancer therapy. Natural products have always represented a unique source of lead structures in drug discovery, and in recent years have been used to modulate the Hh pathway at multiple levels. Here, starting from an in house library of natural compounds and their derivatives, we discovered novel chemotypes of Hh inhibitors by mean of virtual screening against the crystallographic structure of Smo. Hh functional based assay identified the chalcone derivative 12 as the most effective Hh inhibitor within the test set. The chalcone 12 binds the Smo receptor and promotes the displacement of Bodipy-Cyclopamine in both Smo WT and drug-resistant Smo mutant. Our molecule stands as a promising Smo antagonist able to specifically impair the growth of Hh-dependent tumor cells in vitro and in vivo and medulloblastoma stem-like cells and potentially overcome the associated drug resistance.
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Affiliation(s)
- Paola Infante
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291 Rome, Italy
| | - Romina Alfonsi
- Department of Molecular Medicine, Sapienza Università di Roma, Viale Regina Elena 291, Rome, Italy
| | - Cinzia Ingallina
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291 Rome, Italy
| | - Deborah Quaglio
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, Rome, Italy
| | - Francesca Ghirga
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291 Rome, Italy
| | - Ilaria D'Acquarica
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, Rome, Italy
| | - Flavia Bernardi
- Department of Molecular Medicine, Sapienza Università di Roma, Viale Regina Elena 291, Rome, Italy
| | - Laura Di Magno
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291 Rome, Italy
| | - Gianluca Canettieri
- Department of Molecular Medicine, Sapienza Università di Roma, Viale Regina Elena 291, Rome, Italy
| | - Isabella Screpanti
- Department of Molecular Medicine, Sapienza Università di Roma, Viale Regina Elena 291, Rome, Italy
- Istituto Pasteur Fondazione Cenci Bolognetti, Sapienza Università di Roma, Viale Regina Elena 291, Rome, Italy
| | - Alberto Gulino
- Department of Molecular Medicine, Sapienza Università di Roma, Viale Regina Elena 291, Rome, Italy
| | - Bruno Botta
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, Rome, Italy
| | - Mattia Mori
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291 Rome, Italy
| | - Lucia Di Marcotullio
- Department of Molecular Medicine, Sapienza Università di Roma, Viale Regina Elena 291, Rome, Italy
- Istituto Pasteur Fondazione Cenci Bolognetti, Sapienza Università di Roma, Viale Regina Elena 291, Rome, Italy
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37
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Bespyatykh J, Shitikov E, Butenko I, Altukhov I, Alexeev D, Mokrousov I, Dogonadze M, Zhuravlev V, Yablonsky P, Ilina E, Govorun V. Proteome analysis of the Mycobacterium tuberculosis Beijing B0/W148 cluster. Sci Rep 2016; 6:28985. [PMID: 27356881 PMCID: PMC4928086 DOI: 10.1038/srep28985] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 06/13/2016] [Indexed: 12/18/2022] Open
Abstract
Beijing B0/W148, a "successful" clone of Mycobacterium tuberculosis, is widespread in the Russian Federation and some countries of the former Soviet Union. Here, we used label-free gel-LC-MS/MS shotgun proteomics to discover features of Beijing B0/W148 strains that could explain their success. Qualitative and quantitative proteome analyses of Beijing B0/W148 strains allowed us to identify 1,868 proteins, including 266 that were differentially abundant compared with the control strain H37Rv. To predict the biological effects of the observed differences in protein abundances, we performed Gene Ontology analysis together with analysis of protein-DNA interactions using a gene regulatory network. Our results demonstrate that Beijing B0/W148 strains have increased levels of enzymes responsible for long-chain fatty acid biosynthesis, along with a coincident decrease in the abundance of proteins responsible for their degradation. Together with high levels of HsaA (Rv3570c) protein, involved in steroid degradation, these findings provide a possible explanation for the increased transmissibility of Beijing B0/W148 strains and their survival in host macrophages. Among other, we confirmed a very low level of the SseA (Rv3283) protein in Beijing B0/W148 characteristic for all «modern» Beijing strains, which could lead to increased DNA oxidative damage, accumulation of mutations, and potentially facilitate the development of drug resistance.
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Affiliation(s)
- Julia Bespyatykh
- Federal Research and Clinical Centre of Physical-Chemical Medicine, Moscow, Russian Federation
| | - Egor Shitikov
- Federal Research and Clinical Centre of Physical-Chemical Medicine, Moscow, Russian Federation
| | - Ivan Butenko
- Federal Research and Clinical Centre of Physical-Chemical Medicine, Moscow, Russian Federation
| | - Ilya Altukhov
- Federal Research and Clinical Centre of Physical-Chemical Medicine, Moscow, Russian Federation
- Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Dmitry Alexeev
- Federal Research and Clinical Centre of Physical-Chemical Medicine, Moscow, Russian Federation
- Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Igor Mokrousov
- St. Petersburg Pasteur Institute, St. Petersburg, Russian Federation
| | - Marine Dogonadze
- Research Institute of Phtisiopulmonology, St. Petersburg, Russian Federation
| | | | - Peter Yablonsky
- Research Institute of Phtisiopulmonology, St. Petersburg, Russian Federation
| | - Elena Ilina
- Federal Research and Clinical Centre of Physical-Chemical Medicine, Moscow, Russian Federation
| | - Vadim Govorun
- Federal Research and Clinical Centre of Physical-Chemical Medicine, Moscow, Russian Federation
- Moscow Institute of Physics and Technology, Dolgoprudny, Russia
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38
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Cirigliano A, Stirpe A, Menta S, Mori M, Dell'Edera D, Pick E, Negri R, Botta B, Rinaldi T. Yeast as a tool to select inhibitors of the cullin deneddylating enzyme Csn5. J Enzyme Inhib Med Chem 2016; 31:1632-7. [PMID: 27028668 DOI: 10.3109/14756366.2016.1160901] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The CSN complex plays a key role in various cellular pathways: through a metalloprotease activity of its Csn5 deneddylating enzyme, it regulates the activity of Cullin-RING ligases (CRLs). Indeed, Csn5 has been found amplified in many tumors, but, due to its pleiotropic effects, it is difficult to dissect its function and the involvement in cancer progression. Moreover, while growing evidences point to the neddylation function as a good target for drug development; specific inhibitors have not yet been developed for the CSN. Here, we propose the yeast Saccharomyces cerevisiae as a model system to screen libraries of small molecules as inhibitors of cullins deneddylation, taking advantage of the unique feature of this organism to survive without a functional CSN5 gene and to accumulate a fully neddylated cullin substrate. By combining molecular modeling and simple genetic tools, we were able to identify two small molecular fragments as selective inhibitors of Csn5 deneddylation function.
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Affiliation(s)
- Angela Cirigliano
- a Istituto Pasteur Fondazione Cenci Bolognetti, Department of Biology and Biotechnology, Sapienza University of Rome , Rome , Italy .,b Associazione Gian Franco Lupo "Un sorriso alla vita" Onlus, U.O.D. Laboratorio di Citogenetica e Genetica Molecolare, ASM Matera , Italy
| | - Alessandro Stirpe
- a Istituto Pasteur Fondazione Cenci Bolognetti, Department of Biology and Biotechnology, Sapienza University of Rome , Rome , Italy
| | - Sergio Menta
- c Dipartimento di Chimica e Tecnologie del Farmaco , Sapienza University of Rome , Rome , Italy
| | - Mattia Mori
- d Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia , Rome , Italy , and
| | - Domenico Dell'Edera
- b Associazione Gian Franco Lupo "Un sorriso alla vita" Onlus, U.O.D. Laboratorio di Citogenetica e Genetica Molecolare, ASM Matera , Italy
| | - Elah Pick
- e Department of Biology and Environment , Faculty of Natural Sciences, University of Haifa , Oranim , Kiryat Tivon , Israel
| | - Rodolfo Negri
- a Istituto Pasteur Fondazione Cenci Bolognetti, Department of Biology and Biotechnology, Sapienza University of Rome , Rome , Italy
| | - Bruno Botta
- c Dipartimento di Chimica e Tecnologie del Farmaco , Sapienza University of Rome , Rome , Italy
| | - Teresa Rinaldi
- a Istituto Pasteur Fondazione Cenci Bolognetti, Department of Biology and Biotechnology, Sapienza University of Rome , Rome , Italy
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39
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Gao L, Han J, Lei X. Enantioselective Total Syntheses of Kuwanon X, Kuwanon Y, and Kuwanol A. Org Lett 2016; 18:360-3. [DOI: 10.1021/acs.orglett.5b03285] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lei Gao
- Graduate
School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Jianguang Han
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Xiaoguang Lei
- Graduate
School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic
Chemistry and Molecular Engineering of Ministry of Education, Department
of Chemical Biology, College of Chemistry and Molecular Engineering,
Synthetic and Functional Biomolecules Center, and Peking-Tsinghua
Center for Life Sciences, Peking University, Beijing 100871, China
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40
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Chatterjee A, Pandey S, Singh PK, Pathak NP, Rai N, Ramachandran R, Tripathi RP, Srivastava KK. Biochemical and functional characterizations of tyrosine phosphatases from pathogenic and nonpathogenic mycobacteria: indication of phenyl cyclopropyl methyl-/phenyl butenyl azoles as tyrosine phosphatase inhibitors. Appl Microbiol Biotechnol 2015; 99:7539-48. [PMID: 25750048 DOI: 10.1007/s00253-015-6502-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 02/04/2015] [Accepted: 02/17/2015] [Indexed: 11/27/2022]
Abstract
Tyrosine phosphorylation is one of the most common means of posttranslational modifications which can generate novel recognition motifs for protein interactions and thereafter affecting cellular localization, protein stability, and enzyme activity. Mycobacterium tuberculosis (Mtb) possesses a wide range of signal transduction systems, including two protein tyrosine phosphatases (PtpA and PtpB). Since functional diversities between protein tyrosine phosphatases (PTPases) are illustrated by regulatory domains and subunits, we have characterized the nature of tyrosine phosphatases from slow-grower pathogenic species Mtb and from fast-grower nonpathogenic species Mycobacterium smegmatis (MS). The findings delineate that the enzymes present in MS have significantly lesser phosphatase activity than PTPases of Mtb as evidenced by low K cat/K m of recombinantly expressed proteins. The K cat/K m for Mtb PtpA was 500-1000-fold higher than MS PTPases. We have designed and synthesized phenyl cyclopropyl methyl-/phenyl butenyl azoles which inhibit growth of mycobacteria, in culture and in macrophages. The mechanism of efficacy of these compounds against mycobacteria was identified and suggested that the inhibition may possibly be mediated via the targeting of Mtb tyrosine phosphatase. The results further added that these compounds exclusively inhibit PtpA of Mtb.
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Affiliation(s)
- Aditi Chatterjee
- Division of Microbiology, CSIR-Central Drug Research Institute, Lucknow, 226 031, India
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41
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Mujahid M, Yogeeswari P, Sriram D, Basavanag UMV, Díaz-Cervantes E, Córdoba-Bahena L, Robles J, Gonnade RG, Karthikeyan M, Vyas R, Muthukrishnan M. Spirochromone-chalcone conjugates as antitubercular agents: synthesis, bio evaluation and molecular modeling studies. RSC Adv 2015. [DOI: 10.1039/c5ra21737g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
We report new spiro chromone scaffold derived molecules possessing in vitro anti-tubercular activities. QSAR based molecular modeling studies correlated the bioactivities with the frontier molecular orbital energies.
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Affiliation(s)
- M. Mujahid
- CSIR-National Chemical Laboratory
- Pune
- India
| | - P. Yogeeswari
- Medicinal Chemistry & Antimycobacterial Research Laboratory
- Pharmacy Group
- Birla Institute of Technology & Science – Pilani
- Hyderabad 500 078
- India
| | - D. Sriram
- Medicinal Chemistry & Antimycobacterial Research Laboratory
- Pharmacy Group
- Birla Institute of Technology & Science – Pilani
- Hyderabad 500 078
- India
| | - U. M. V. Basavanag
- Departamento de Química y Departamento de Farmacia
- Universidad de Guanajuato
- Guanajuato
- Mexico
| | - Erik Díaz-Cervantes
- Departamento de Química y Departamento de Farmacia
- Universidad de Guanajuato
- Guanajuato
- Mexico
| | - Luis Córdoba-Bahena
- Departamento de Química y Departamento de Farmacia
- Universidad de Guanajuato
- Guanajuato
- Mexico
| | - Juvencio Robles
- Departamento de Química y Departamento de Farmacia
- Universidad de Guanajuato
- Guanajuato
- Mexico
| | | | | | - Renu Vyas
- CSIR-National Chemical Laboratory
- Pune
- India
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42
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Bertoldo JB, Chiaradia-Delatorre LD, Mascarello A, Leal PC, Cordeiro MNS, Nunes RJ, Sarduy ES, Rosenthal PJ, Terenzi H. Synthetic compounds from an in house library as inhibitors of falcipain-2 from Plasmodium falciparum. J Enzyme Inhib Med Chem 2014; 30:299-307. [PMID: 24964346 DOI: 10.3109/14756366.2014.920839] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Falcipain-2 (FP-2) is a key cysteine protease from the malaria parasite Plasmodium falciparum. Many previous studies have identified FP-2 inhibitors; however, none has yet met the criteria for an antimalarial drug candidate. In this work, we assayed an in-house library of non-peptidic organic compounds, including (E)-chalcones, (E)-N'-benzylidene-benzohydrazides and alkyl-esters of gallic acid, and assessed the activity toward FP-2 and their mechanisms of inhibition. The (E)-chalcones 48, 54 and 66 showed the lowest IC50 values (8.5 ± 0.8 µM, 9.5 ± 0.2 µM and 4.9 ± 1.3 µM, respectively). The best inhibitor (compound 66) demonstrated non-competitive inhibition, and using mass spectrometry and fluorescence spectroscopy assays, we suggest a potential allosteric site for the interaction of this compound, located between the catalytic site and the hemoglobin binding arm in FP-2. We combined structural biology tools and mass spectrometry to characterize the inhibition mechanisms of novel compounds targeting FP-2.
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