1
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Sundararajan S, Karunakaran K, Muniyan R. Structure based virtual screening and discovery of novel inhibitors against FabD protein of Mycobacterium tuberculosis. J Biomol Struct Dyn 2024; 42:6280-6291. [PMID: 37424186 DOI: 10.1080/07391102.2023.2233622] [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: 03/03/2023] [Accepted: 07/01/2023] [Indexed: 07/11/2023]
Abstract
The highly flexible nature of Mycobacterium tuberculosis (Mtb) can be owed to its tough cell wall and multiple gene interaction system which makes it resistant to frontline TB drugs. Mycolic acids are the key components of the unique cell wall that protects the organism from external threats. Proteins of the fatty acid synthesis pathway are evolutionarily conserved that enables cellular survival in harsh conditions and hence have become attractive targets. Malonyl Co-A Acyl carrier protein transacylase (FabD; MCAT, EC2.3.1.39) is an enzyme in the branching point of the unique and vast fatty acid synthase (FAS-I and FAS-II) systems of Mtb. In the present investigation, in-silico structure based drug discovery with the compounds from an open source library (NPASS) is used for target fishing and employed to understand the interaction with the target protein FabD. The potential hit compounds were filtered using exhaustive docking, considering the binding energy, key residue interaction and drug likeness property. Three compounds from the library namely NPC475074 (Hit 1), NPC260631 (Hit 2) and NPC313985 (Hit 3) with binding energies -14.45, -13.29 and -12.37 respectively were taken for molecular dynamic simulation. The results suggested that Hit 3 (NPC313985) has stable interaction with FabD protein. This article further elaborates the interaction of the identified novel compounds Hit 1 and Hit 3 along with the other known compound (Hit 2) against Mtb FabD protein. The hit compounds identified from this study could be further evaluated against mutated FabD protein and considered for in-vitro evaluation.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sadhana Sundararajan
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Keerthana Karunakaran
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Rajiniraja Muniyan
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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2
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Bao A, Xia X, Wang H, Li Q, Chen C, Zhang Y, Zhu H. Diterpenoids with Antibacterial Activities from the Fungus Trichoderma harzianum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:15228-15236. [PMID: 38935872 DOI: 10.1021/acs.jafc.4c00067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
A new fusicoccane diterpenoid, harziaderma A (1), two novel harziane diterpenoids, harzianones G and H (2 and 3), one revised harziane diterpenoid (4), and two known diterpenoids (5 and 6) were isolated from the fungus Trichoderma harzianum and established via NMR, HRESIMS, Mo2(OAc)4-induced circular dichroism (ICD) and electronic circular dichroism (ECD) calculations. It is worth noting that compound 1 represents the first instance of a fusicoccane-type diterpenoid derived from T. harzianum. The structure of furanharzianone B was revised to 4 via careful spectroscopic analyses. Additionally, compounds 2 and 5 could suppress the overall growth of the foodborne bacterial pathogen Bacillus cereus. Compound 4 showed a moderate suppressive impact on NO generation in lipopolysaccharide (LPS)-treated RAW 264.7 cells. The discoveries from the current study not only expanded the structural variety of diterpenoids isolated from T. harzianum but also laid a robust foundation for the development of harziane diterpenoids as anti-foodborne pathogen agents.
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Affiliation(s)
- Alan Bao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Xian Xia
- Hubei Key Laboratory of Edible Wild Plants Conservation and Utilization, Hubei Normal University, Huangshi 435002, People's Republic of China
| | - Hao Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Qin Li
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Chunmei Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
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3
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Alotaibi N, Alotaibi MO, Alshammari N, Adnan M, Patel M. Network Pharmacology Combined with Molecular Docking, Molecular Dynamics, and In Vitro Experimental Validation Reveals the Therapeutic Potential of Thymus vulgaris L. Essential Oil (Thyme Oil) against Human Breast Cancer. ACS OMEGA 2023; 8:48344-48359. [PMID: 38144096 PMCID: PMC10734022 DOI: 10.1021/acsomega.3c07782] [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: 10/06/2023] [Revised: 11/22/2023] [Accepted: 11/29/2023] [Indexed: 12/26/2023]
Abstract
Breast cancer is a major global health issue for women. Thyme oil, extracted from Thymus vulgaris L., has shown promising anticancer effects. In the present study, we investigated how Thyme oil can influence breast cancer treatment using a multimethod approach. We used network pharmacology to identify the active compounds of Thyme oil, their molecular targets, and the pathways involved in breast cancer. We found that Thyme oil can modulate several key proteins (EGFR, AKT1, ESR1, HSP90AA1, STAT-3, SRC, IL-6, HIF1A, JUN, and BCL2) and pathways (EGFR tyrosine kinase inhibitor resistance, prolactin signaling pathway, HIF-1 signaling pathway, estrogen signaling pathway, ERBB signaling pathway, AGE-RAGE signaling pathway, JAK-STAT signaling pathway, FoxO signaling pathway, and PI3K-AKT signaling pathway) related to breast cancer progression. We then used molecular docking and dynamics to study the interactions and stability of the Thyme oil-compound complexes. We discovered three potent compounds (aromadendrene, α-humulene, and viridiflorene) that can bind strongly to important breast cancer proteins. We also performed in vitro experiments on MCF-7 cells to confirm the cytotoxicity and antiproliferative effects of Thyme oil. We observed that Thyme oil can inhibit cancer cell growth and proliferation at a concentration of 365.37 μg/mL. Overall, our results provide a comprehensive understanding of the pharmacological mechanism of Thyme oil in breast cancer treatment and suggest its potential as a new or adjuvant therapy. Further studies are needed to validate and optimize the therapeutic efficacy of Thyme oil and its active compounds.
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Affiliation(s)
- Nahaa
M. Alotaibi
- Department
of Biology, College of Science, Princess
Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Modhi O. Alotaibi
- Department
of Biology, College of Science, Princess
Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Nawaf Alshammari
- Department
of Biology, College of Science, University
of Ha’il, P.O. Box 2440, Ha’il 55473, Saudi Arabia
| | - Mohd Adnan
- Department
of Biology, College of Science, University
of Ha’il, P.O. Box 2440, Ha’il 55473, Saudi Arabia
| | - Mitesh Patel
- Research
and Development Cell, Department of Biotechnology, Parul Institute
of Applied Sciences, Parul University, Vadodara 391760, India
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4
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Lopes D, Seabra AL, Orr B, Maiato H. α-Tubulin detyrosination links the suppression of MCAK activity with taxol cytotoxicity. J Cell Biol 2023; 222:213730. [PMID: 36459065 PMCID: PMC9723805 DOI: 10.1083/jcb.202205092] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 10/24/2022] [Accepted: 11/09/2022] [Indexed: 12/03/2022] Open
Abstract
α/β-Tubulin posttranslational modifications (PTMs) generate microtubule diversity, but whether they account for cancer cell resistance to microtubule-targeting drugs remains unknown. Here, we performed a pilot dissection of the "cancer tubulin code" using the NCI-60 cancer cell panel. We found that acetylated, detyrosinated, and ∆2-α-tubulin that typically accumulate on stable microtubules were uncoupled in many cancer cells. Acetylated α-tubulin did not affect microtubule dynamics, whereas its levels correlated with, but were not required for, taxol-induced cytotoxicity. In contrast, experimental increase of α-tubulin detyrosination, and/or depletion of the detyrosination-sensitive microtubule-depolymerizing enzyme MCAK, enhanced taxol-induced cytotoxicity by promoting cell death in mitosis and the subsequent interphase, without causing a cumulative effect. Interestingly, only increased detyrosinated α-tubulin aggravated taxol-induced spindle multipolarity. Overall, we identified high α-tubulin acetylation as a potential biomarker for cancer cell response to taxol and uncovered a mechanistic link between α-tubulin detyrosination and the suppression of MCAK activity in taxol-induced cytotoxicity, likely by promoting chromosome missegregation, regardless of spindle defects.
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Affiliation(s)
- Danilo Lopes
- Chromosome Instability & Dynamics Group, i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Alexandre L Seabra
- Chromosome Instability & Dynamics Group, i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Bernardo Orr
- Chromosome Instability & Dynamics Group, i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Helder Maiato
- Chromosome Instability & Dynamics Group, i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.,Cell Division Group, Department of Biomedicine, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
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5
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Sarhadi E, Nejad Ebrahimi S, Hadjiakhoondi A, Abbas-Mohammadi M, Manayi A, Parisi V, Pessolano E, Petrella A, De Tommasi N. Cytotoxic abietane diterpenoids from Salvia leriifolia Benth. PHYTOCHEMISTRY 2022; 202:113310. [PMID: 35863476 DOI: 10.1016/j.phytochem.2022.113310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 07/01/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
The Phytochemical profiling of the root extract of Salvia leriifolia, an endemic plant of Iran, was investigated and 16 abietane diterpenes were isolated, and three were original compounds. 1D and 2D NMR and HRMS performed structural elucidation. The absolute configuration of the previously unreported compounds was determined by circular dichroism (ECD). The cytotoxicity of the isolated compounds was investigated against AGS, MIA PaCa-2, HeLa, and MCF-7 cell lines by the MTT assay. The known diterpene pisiferal possesses high cytotoxicity against all investigated cell lines at a concentration between 9.3 ± 0.6 and 14.38 ± 1.4 μM.
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Affiliation(s)
- Elham Sarhadi
- Medicinal Plants Research Centr, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran.
| | - Abbas Hadjiakhoondi
- Medicinal Plants Research Centr, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Abbas-Mohammadi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Azadeh Manayi
- Medicinal Plants Research Centr, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Valentina Parisi
- Dipartimento di Farmacia, Università Degli Studi di Salerno, Via Giovanni Paolo II N° 132, 84084, Fisciano, SA, Italy
| | - Emanuela Pessolano
- Dipartimento di Farmacia, Università Degli Studi di Salerno, Via Giovanni Paolo II N° 132, 84084, Fisciano, SA, Italy
| | - Antonello Petrella
- Dipartimento di Farmacia, Università Degli Studi di Salerno, Via Giovanni Paolo II N° 132, 84084, Fisciano, SA, Italy
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università Degli Studi di Salerno, Via Giovanni Paolo II N° 132, 84084, Fisciano, SA, Italy.
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6
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Boccia E, Alfieri M, Belvedere R, Santoro V, Colella M, Del Gaudio P, Moros M, Dal Piaz F, Petrella A, Leone A, Ambrosone A. Plant hairy roots for the production of extracellular vesicles with antitumor bioactivity. Commun Biol 2022; 5:848. [PMID: 35987960 PMCID: PMC9392725 DOI: 10.1038/s42003-022-03781-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 07/29/2022] [Indexed: 02/08/2023] Open
Abstract
Plant extracellular vesicles (EVs) concentrate and deliver different types of bioactive molecules in human cells and are excellent candidates for a next-generation drug delivery system. However, the lack of standard protocols for plant EV production and the natural variations of their biomolecular cargo pose serious limitation to their use as therapeutics. To overcome these issues, we set up a versatile and standardized procedure to purify plant EVs from hairy root (HR) cultures, a versatile biotechnological system, already successfully employed as source of bioactive molecules with pharmaceutical and nutraceutical relevance. Herewith, we report that HR of Salvia dominica represent an excellent platform for the production of plant EVs. In particular, EVs derived from S. dominica HRs are small round-shaped vesicles carrying typical EV-associated proteins such as cytoskeletal components, chaperon proteins and integral membrane proteins including the tetraspanin TET-7. Interestingly, the HR-derived EVs showed selective and strong pro-apoptotic activity in pancreatic and mammary cancer cells. These results reveal that plant hairy roots may be considered a new promising tool in plant biotechnology for the production of extracellular vesicles for human health.
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Affiliation(s)
- Eleonora Boccia
- Department of Pharmacy, University of Salerno, 84084, Fisciano, Italy
| | - Mariaevelina Alfieri
- Department of Pharmacy, University of Salerno, 84084, Fisciano, Italy
- Clinical Pathology, Pausilipon Hospital, A.O.R.N Santobono-Pausilipon, 80123, Naples, Italy
| | | | - Valentina Santoro
- Department of Pharmacy, University of Salerno, 84084, Fisciano, Italy
| | - Marianna Colella
- Department of Pharmacy, University of Salerno, 84084, Fisciano, Italy
| | | | - Maria Moros
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Fabrizio Dal Piaz
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, 84081, Baronissi, Italy
- Operative Unit of Clinical Pharmacology, University Hospital "San Giovanni di Dio e Ruggi d'Aragona", 84131, Salerno, Italy
| | | | - Antonietta Leone
- Department of Pharmacy, University of Salerno, 84084, Fisciano, Italy
| | - Alfredo Ambrosone
- Department of Pharmacy, University of Salerno, 84084, Fisciano, Italy.
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7
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Uncommon Terpenoids from Salvia Species: Chemistry, Biosynthesis and Biological Activities. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27031128. [PMID: 35164392 PMCID: PMC8838292 DOI: 10.3390/molecules27031128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/05/2022] [Accepted: 02/06/2022] [Indexed: 11/20/2022]
Abstract
The search for new bioactive compounds from plant sources has been and continues to be one of the most important fields of research in drug discovery. However, Natural Products research has continuously evolved, and more and more has gained a multidisciplinary character. Despite new developments of methodologies and concepts, one intriguing aspect still persists, i.e., different species belonging to the same genus can produce different secondary metabolites, whereas taxonomically different genera can produce the same compounds. The genus Salvia L. (Family Lamiaceae) comprises myriad distinct medicinal herbs used in traditional medicine worldwide that show different pharmacological activities due to the presence of a variety of interesting specialized metabolites, including mono-, sesqui-, di-, sester-, tri-, tetra-, and higher terpenoids as well as phenylpropanoids, phenolic acid derivatives, lignans, flavonoids, and alkaloids. We herein summarize the research progress on some uncommon terpenoids, isolated from members of the genus Salvia, which are well recognized for their potential pharmacological activities. This review also provides a current knowledge on the biosynthesis and occurrence of some interesting phytochemicals from Salvia species, viz. C23-terpenoids, sesterterpenoids (C25), dammarane triterpenoids (C30), and uncommon triterpenoids (C20+C10). The study was carried out by searching various scientific databases, including Elsevier, ACS publications, Taylor and Francis, Wiley Online Library, MDPI, Springer, Thieme, and ProQuest. Therefore, 106 uncommon terpenoids were identified and summarized. Some of these compounds possessed a variety of pharmacological properties, such as antibacterial, antiviral, antiparasitic, cytotoxic and tubulin tyrosine ligase inhibitory activities. Due to the lack of pharmacological information for the presented compounds gathered from previous studies, biological investigation of these compounds should be reinvestigated.
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8
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Akiel MA, Alshehri OY, Aljihani SA, Almuaysib A, Bader A, Al‐Asmari AI, Alamri HS, Alrfaei BM, Halwani MA. Viridiflorol induces anti-neoplastic effects on breast, lung, and brain cancer cells through apoptosis. Saudi J Biol Sci 2022; 29:816-821. [PMID: 35197749 PMCID: PMC8847963 DOI: 10.1016/j.sjbs.2021.10.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 10/04/2021] [Accepted: 10/06/2021] [Indexed: 12/30/2022] Open
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9
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Chen Q, Li J, Ma Y, Yuan W, Zhang P, Wang G. Occurrence and biosynthesis of plant sesterterpenes (C25), a new addition to terpene diversity. PLANT COMMUNICATIONS 2021; 2:100184. [PMID: 34746758 PMCID: PMC8553974 DOI: 10.1016/j.xplc.2021.100184] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/03/2021] [Accepted: 03/28/2021] [Indexed: 05/21/2023]
Abstract
Terpenes, the largest group of plant-specialized metabolites, have received considerable attention for their highly diverse biological activities. Monoterpenes (C10), sesquiterpenes (C15), diterpenes (C20), and triterpenes (C30) have been extensively investigated at both the biochemical and molecular levels over the past two decades. Sesterterpenes (C25), an understudied terpenoid group, were recently described by plant scientists at the molecular level. This review summarizes the plant species that produce sesterterpenes and describes recent developments in the field of sesterterpene biosynthesis, placing a special focus on the catalytic mechanism and evolution of geranylfarnesyl diphosphate synthase and sesterterpene synthase. Finally, we propose several questions to be addressed in future studies, which may help to elucidate sesterterpene metabolism in plants.
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Affiliation(s)
- Qingwen Chen
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
| | - Jianxu Li
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yihua Ma
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Weiliang Yuan
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Peng Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Guodong Wang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
- Corresponding author
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10
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Guo K, Liu Y, Li SH. The untapped potential of plant sesterterpenoids: chemistry, biological activities and biosynthesis. Nat Prod Rep 2021; 38:2293-2314. [PMID: 34114591 DOI: 10.1039/d1np00021g] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Covering: 1969 up to 2021Sesterterpenoids, biosynthetically derived from the precursor, namely geranylfarnesyl diphosphate (GFDP) are amongst the rarest of all isoprenoids with approximately 1300 compounds known. Most sesterterpenoids originate from marine organisms (especially sponges), while only about 15% of these compounds are isolated from several families of plants such as Lamiaceae, Gentianaceae, and Nartheciaceae. Many plant sesterterpenoids possess highly oxygenated and complex cyclic skeletons and exhibit remarkable biological activities involving cytotoxic, anti-inflammatory, antimicrobial, and antifeedant properties. Thus, due to their intrinsic chemical complexity and intriguing biological profiles, plant sesterterpenoids have attracted continuing interest from both chemists and biologists. However, the biosynthesis and distribution of sesterterpenoids in the plant kingdom still remain elusive, although substantial progress has been achieved in recent years. This review provides an overall coverage of sesterterpenoids originating from plant sources, followed by a classification of their chemical skeletons, which summarizes the distribution, chemistry, biological activities, biosynthesis and evolution of plant sesterterpenoids, aiming at strengthening the research efforts toward the untapped great potential of these unique natural product resources.
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Affiliation(s)
- Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China.
| | - Yan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China. and State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China.
| | - Sheng-Hong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, P. R. China. and State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China.
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11
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Pederick JL, Thompson AP, Bell SG, Bruning JB. d-Alanine-d-alanine ligase as a model for the activation of ATP-grasp enzymes by monovalent cations. J Biol Chem 2020; 295:7894-7904. [PMID: 32335509 DOI: 10.1074/jbc.ra120.012936] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/23/2020] [Indexed: 12/18/2022] Open
Abstract
The ATP-grasp superfamily of enzymes shares an atypical nucleotide-binding site known as the ATP-grasp fold. These enzymes are involved in many biological pathways in all domains of life. One ATP-grasp enzyme, d-alanine-d-alanine ligase (Ddl), catalyzes ATP-dependent formation of the d-alanyl-d-alanine dipeptide essential for bacterial cell wall biosynthesis and is therefore an important antibiotic drug target. Ddl is activated by the monovalent cation (MVC) K+, but despite its clinical relevance and decades of research, how this activation occurs has not been elucidated. We demonstrate here that activating MVCs bind adjacent to the active site of Ddl from Thermus thermophilus and used a combined biochemical and structural approach to characterize MVC activation. We found that TtDdl is a type II MVC-activated enzyme, retaining activity in the absence of MVCs. However, the efficiency of TtDdl increased ∼20-fold in the presence of activating MVCs, and it was maximally activated by K+ and Rb+ ions. A strict dependence on ionic radius of the MVC was observed, with Li+ and Na+ providing little to no TtDdl activation. To understand the mechanism of MVC activation, we solved crystal structures of TtDdl representing distinct catalytic stages in complex with K+, Rb+, or Cs+ Comparison of these structures with apo TtDdl revealed no evident conformational change on MVC binding. Of note, the identified MVC binding site is structurally conserved within the ATP-grasp superfamily. We propose that MVCs activate Ddl by altering the charge distribution of its active site. These findings provide insight into the catalytic mechanism of ATP-grasp enzymes.
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Affiliation(s)
- Jordan L Pederick
- Institute for Photonics and Advanced Sensing, School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia.,Department of Molecular and Cellular Biology, School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Andrew P Thompson
- Department of Molecular and Cellular Biology, School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Stephen G Bell
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia, Australia
| | - John B Bruning
- Institute for Photonics and Advanced Sensing, School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia .,Department of Molecular and Cellular Biology, School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
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12
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Bisio A, Schito AM, Pedrelli F, Danton O, Reinhardt JK, Poli G, Tuccinardi T, Bürgi T, De Riccardis F, Giacomini M, Calzia D, Panfoli I, Schito GC, Hamburger M, De Tommasi N. Antibacterial and ATP Synthesis Modulating Compounds from Salvia tingitana. JOURNAL OF NATURAL PRODUCTS 2020; 83:1027-1042. [PMID: 32182064 PMCID: PMC7997632 DOI: 10.1021/acs.jnatprod.9b01024] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Indexed: 05/05/2023]
Abstract
A surface extract of the aerial parts of Salvia tingitana afforded a nor-sesterterpenoid (1) and eight new sesterterpenoids (2-̵9), along with five known sesterterpenoids, five labdane and one abietane diterpenoid, one sesquiterpenoid, and four flavonoids. The structures of the new compounds were established by 1D and 2D NMR spectroscopy, HRESIMS, and VCD data and Mosher's esters analysis. The antimicrobial activity of compounds was evaluated against 30 human pathogens including 27 clinical strains and three isolates of marine origin for their possible implications on human health. The methyl ester of salvileucolide (10), salvileucolide-6,23-lactone (11), sclareol (15), and manool (17) were the most active against Gram-positive bacteria. The compounds were also tested for the inhibition of ATP production in purified mammalian rod outer segments. Terpenoids 10, 11, 15, and 17 inhibited ATP production, while only 17 inhibited also ATP hydrolysis. Molecular modeling studies confirmed the capacity of 17 to interact with mammalian ATP synthase. A significant reduction of ATP production in the presence of 17 was observed in Enterococcus faecalis and E. faecium isolates.
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Affiliation(s)
- Angela Bisio
- Department
of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy
| | - Anna M. Schito
- Department
of Integrated Surgical and Diagnostical Sciences, University of Genova, Largo Rosanna Benzi 8, 16145 Genova, Italy
| | - Francesca Pedrelli
- Department
of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy
| | - Ombeline Danton
- Department
of Pharmaceutical Sciences, University of
Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Jakob K. Reinhardt
- Department
of Pharmaceutical Sciences, University of
Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Giulio Poli
- Department
of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Tiziano Tuccinardi
- Department
of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Thomas Bürgi
- Department
of Chemical Physics, University of Geneva, 30 Quai Ernest-Ansermet, 1211 Genève 4, Switzerland
| | - Francesco De Riccardis
- Department
of Chemistry and Biology, University of
Salerno, Via Giovanni Paolo II 132, 84084 Salerno, Italy
| | - Mauro Giacomini
- Department
of Informatics Bioengineering Robotics and System Engineering, University of Genova, Via all’Opera Pia, 13, 16145 Genova, Italy
| | - Daniela Calzia
- Department
of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy
| | - Isabella Panfoli
- Department
of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy
| | - Gian Carlo Schito
- Department
of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy
| | - Matthias Hamburger
- Department
of Pharmaceutical Sciences, University of
Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Nunziatina De Tommasi
- Department
of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Salerno, Italy
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Sadoul K, Joubert C, Michallet S, Nolte E, Peronne L, Ramirez-Rios S, Ribba AS, Lafanechère L. [On the road to deciphering the tubulin code: focus on acetylation and detyrosination]. Med Sci (Paris) 2019; 34:1047-1055. [PMID: 30623774 DOI: 10.1051/medsci/2018295] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Microtubules are cytoskeletal fibers formed by the assembly of α- and β-tubulin heterodimers. They contribute to cell morphology, mobility and polarity, as well as to cellular transport processes and cell division. The microtubular network constantly adapts to cellular needs and may be composed of very dynamic or more stable microtubules. To regulate their diverse functions in a spatio-temporal manner, microtubules are subjected to numerous reversible post-translational modifications, which generate the "tubulin code". This review focuses on two modifications characteristic of stable microtubules - acetylation and detyrosination of α-tubulin - and their deregulation in certain pathologies.
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Affiliation(s)
- Karin Sadoul
- Régulation et pharmacologie du cytosquelette, Institut pour l'avancée des biosciences, Université Grenoble Alpes ; Inserm U 1209 ; CNRS 5309, Allée des Alpes, 38700 La Tronche, France
| | - Clotilde Joubert
- Régulation et pharmacologie du cytosquelette, Institut pour l'avancée des biosciences, Université Grenoble Alpes ; Inserm U 1209 ; CNRS 5309, Allée des Alpes, 38700 La Tronche, France
| | - Sophie Michallet
- Régulation et pharmacologie du cytosquelette, Institut pour l'avancée des biosciences, Université Grenoble Alpes ; Inserm U 1209 ; CNRS 5309, Allée des Alpes, 38700 La Tronche, France
| | - Elsie Nolte
- Régulation et pharmacologie du cytosquelette, Institut pour l'avancée des biosciences, Université Grenoble Alpes ; Inserm U 1209 ; CNRS 5309, Allée des Alpes, 38700 La Tronche, France
| | - Lauralie Peronne
- Régulation et pharmacologie du cytosquelette, Institut pour l'avancée des biosciences, Université Grenoble Alpes ; Inserm U 1209 ; CNRS 5309, Allée des Alpes, 38700 La Tronche, France
| | - Sacnicté Ramirez-Rios
- Régulation et pharmacologie du cytosquelette, Institut pour l'avancée des biosciences, Université Grenoble Alpes ; Inserm U 1209 ; CNRS 5309, Allée des Alpes, 38700 La Tronche, France
| | - Anne-Sophie Ribba
- Régulation et pharmacologie du cytosquelette, Institut pour l'avancée des biosciences, Université Grenoble Alpes ; Inserm U 1209 ; CNRS 5309, Allée des Alpes, 38700 La Tronche, France
| | - Laurence Lafanechère
- Régulation et pharmacologie du cytosquelette, Institut pour l'avancée des biosciences, Université Grenoble Alpes ; Inserm U 1209 ; CNRS 5309, Allée des Alpes, 38700 La Tronche, France
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14
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Abdallah Q, Al-Deeb I, Bader A, Hamam F, Saleh K, Abdulmajid A. Anti-angiogenic activity of Middle East medicinal plants of the Lamiaceae family. Mol Med Rep 2018; 18:2441-2448. [PMID: 29901194 PMCID: PMC6072233 DOI: 10.3892/mmr.2018.9155] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/11/2018] [Indexed: 01/02/2023] Open
Abstract
Angiogenesis plays a crucial role in malignant tumor progression and development. The present study aimed to identify lead plants with selective anti-angiogenic properties. A total of 26 methanolic extracts obtained from 18 plants growing in Saudi Arabia and Jordan that belong to the Lamiaceae family were screened for their cytotoxic and anti-angiogenic activities using MTT and rat aortic ring assays, respectively. Four novel extracts of Thymbra capitata (L.) Cav., Phlomis viscosa Poir, Salvia samuelssonii Rech.f., and Premna resinosa (Hochst.) Schauer were identified for their selective anti-angiogenic effects. These extracts did not exhibit cytotoxic effects on human endothelial cells (EA.hy926) indicating the involvement of indirect anti-angiogenic mechanisms. The active extracts are potential candidates for further phytochemical and mechanistic studies.
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Affiliation(s)
- Qasem Abdallah
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, Taif, Makkah 21974, Saudi Arabia
| | - Ibrahim Al-Deeb
- Department of Pharmacology, School of Pharmaceutical Sciences, University Sains Malaysia, Minden, Penang 11800, Malaysia
| | - Ammar Bader
- Department of Pharmacognosy, College of Pharmacy, Umm Al‑Qura University, Makkah 21955, Saudi Arabia
| | - Fayez Hamam
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, Taif, Makkah 21974, Saudi Arabia
| | - Kamel Saleh
- Department of Biology, Science College, King Khalid University, Abha, Asir 61413, Saudi Arabia
| | - Amin Abdulmajid
- Department of Pharmacology, School of Pharmaceutical Sciences, University Sains Malaysia, Minden, Penang 11800, Malaysia
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15
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A compound-based proteomic approach discloses 15-ketoatractyligenin methyl ester as a new PPARγ partial agonist with anti-proliferative ability. Sci Rep 2017; 7:41273. [PMID: 28117438 PMCID: PMC5259791 DOI: 10.1038/srep41273] [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: 07/05/2016] [Accepted: 12/19/2016] [Indexed: 12/22/2022] Open
Abstract
Proteomics based approaches are emerging as useful tools to identify the targets of bioactive compounds and elucidate their molecular mechanisms of action. Here, we applied a chemical proteomic strategy to identify the peroxisome proliferator-activated receptor γ (PPARγ) as a molecular target of the pro-apoptotic agent 15-ketoatractyligenin methyl ester (compound 1). We demonstrated that compound 1 interacts with PPARγ, forms a covalent bond with the thiol group of C285 and occupies the sub-pocket between helix H3 and the β-sheet of the ligand-binding domain (LBD) of the receptor by Surface Plasmon Resonance (SPR), mass spectrometry-based studies and docking experiments. 1 displayed partial agonism of PPARγ in cell-based transactivation assays and was found to inhibit the AKT pathway, as well as its downstream targets. Consistently, a selective PPARγ antagonist (GW9662) greatly reduced the anti-proliferative and pro-apoptotic effects of 1, providing the molecular basis of its action. Collectively, we identified 1 as a novel PPARγ partial agonist and elucidated its mode of action, paving the way for therapeutic strategies aimed at tailoring novel PPARγ ligands with reduced undesired harmful side effects.
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16
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Chini MG, Malafronte N, Vaccaro MC, Gualtieri MJ, Vassallo A, Vasaturo M, Castellano S, Milite C, Leone A, Bifulco G, De Tommasi N, Dal Piaz F. Identification of Limonol Derivatives as Heat Shock Protein 90 (Hsp90) Inhibitors through a Multidisciplinary Approach. Chemistry 2016; 22:13236-50. [DOI: 10.1002/chem.201602242] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Indexed: 01/23/2023]
Affiliation(s)
- Maria G. Chini
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Nicola Malafronte
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Maria C. Vaccaro
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Maria J. Gualtieri
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- Department of Pharmacognosy and Organic Drug; University of Los Andes; Sector Campo de Oro, detrás del IAHULA 5101 Mérida Venezuela
| | - Antonio Vassallo
- Department of Science; University of Basilicata; Viale dell'Ateneo Lucano 10 85100 Potenza Italy
| | - Michele Vasaturo
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- PhD Program in Drug Discovery and Development; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Sabrina Castellano
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- Department of Medicine and Surgery; University of Salerno; Via Allende 84081 Baronissi Italy
| | - Ciro Milite
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Antonietta Leone
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Giuseppe Bifulco
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Nunziatina De Tommasi
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Fabrizio Dal Piaz
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- Department of Medicine and Surgery; University of Salerno; Via Allende 84081 Baronissi Italy
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17
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Evidente A, Kornienko A, Lefranc F, Cimmino A, Dasari R, Evidente M, Mathieu V, Kiss R. Sesterterpenoids with Anticancer Activity. Curr Med Chem 2016; 22:3502-22. [PMID: 26295461 DOI: 10.2174/0929867322666150821101047] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 05/30/2015] [Accepted: 08/17/2015] [Indexed: 12/22/2022]
Abstract
Terpenes have received a great deal of attention in the scientific literature due to complex, synthetically challenging structures and diverse biological activities associated with this class of natural products. Based on the number of C5 isoprene units they are generated from, terpenes are classified as hemi- (C5), mono- (C10), sesqui- (C15), di- (C20), sester- (C25), tri (C30), and tetraterpenes (C40). Among these, sesterterpenes and their derivatives known as sesterterpenoids, are ubiquitous secondary metabolites in fungi, marine organisms, and plants. Their structural diversity encompasses carbotricyclic ophiobolanes, polycyclic anthracenones, polycyclic furan-2-ones, polycyclic hydroquinones, among many other carbon skeletons. Furthermore, many of them possess promising biological activities including cytotoxicity and the associated potential as anticancer agents. This review discusses the natural sources that produce sesterterpenoids, provides sesterterpenoid names and their chemical structures, biological properties with the focus on anticancer activities and literature references associated with these metabolites. A critical summary of the potential of various sesterterpenoids as anticancer agents concludes the review.
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Affiliation(s)
- Antonio Evidente
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy.
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18
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Bader A, Tuccinardi T, Granchi C, Martinelli A, Macchia M, Minutolo F, De Tommasi N, Braca A. Phenylpropanoids and flavonoids from Phlomis kurdica as inhibitors of human lactate dehydrogenase. PHYTOCHEMISTRY 2015; 116:262-268. [PMID: 25890391 PMCID: PMC4466035 DOI: 10.1016/j.phytochem.2015.03.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/22/2015] [Accepted: 03/24/2015] [Indexed: 05/17/2023]
Abstract
Two flavonoids, jaceosidin 7-O-β-d-glucopyranosyl-(1→2)-β-d-glucopyranoside (1) and hispidulin 7-O-β-d-glucopyranosyl-(1→2)-β-d-glucopyranoside (2), and one phenylpropanoid, 3,3'-dimethyl-lunariifolioside (3), along with 11 known compounds (4-14), were isolated from the aerial parts of Phlomis kurdica growing in Jordan. Structures of 1-3 were elucidated on the basis of spectroscopic data. These isolated compounds were assayed for their inhibitory activity against isoform 5 of human lactate dehydrogenase. Compound 4, luteolin 7-O-β-d-glucopyranoside, showed an IC50 value comparable to that of galloflavin, used as reference compound. Docking studies were carried out to hypothesize the interaction mode of compound 4 in the enzyme active site.
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Affiliation(s)
- Ammar Bader
- Department of Pharmacognosy, Faculty of Pharmacy, Umm Al-Qura University, P.O. Box 13174, 21955 Makkah, Saudi Arabia
| | - Tiziano Tuccinardi
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Carlotta Granchi
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy
| | - Adriano Martinelli
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Marco Macchia
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Filippo Minutolo
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università degli Studi di Salerno, via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy.
| | - Alessandra Braca
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 6 and 33, 56126 Pisa, Italy; Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute", Università di Pisa, via del Borghetto 80, 56124 Pisa, Italy
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19
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Zeng Y, Cao R, Zhang T, Li S, Zhong W. Design and synthesis of piperidine derivatives as novel human heat shock protein 70 inhibitors for the treatment of drug-resistant tumors. Eur J Med Chem 2015; 97:19-31. [DOI: 10.1016/j.ejmech.2015.04.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 04/13/2015] [Accepted: 04/18/2015] [Indexed: 12/16/2022]
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20
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Dal Piaz F, Ferro P, Vassallo A, Vasaturo M, Forte G, Chini MG, Bifulco G, Tosco A, De Tommasi N. Identification and mechanism of action analysis of the new PARP-1 inhibitor 2″-hydroxygenkwanol A. Biochim Biophys Acta Gen Subj 2015; 1850:1806-14. [PMID: 25999161 DOI: 10.1016/j.bbagen.2015.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 04/27/2015] [Accepted: 05/12/2015] [Indexed: 12/27/2022]
Abstract
BACKGROUND Poly(ADP-ribose) polymerase 1 (PARP-1) activity has been implicated in the pathogenesis of numerous diseases as cancer, inflammation, diabetes and neurodegenerative disorders, therefore the research for new PARP-1 inhibitors is still an active area. METHODS To identify new potential PARP-1 inhibitors, we performed a screening of a small-molecule library consisting of polyphenols isolated from plants used in the traditional medicine, by Surface Plasmon Resonance (SPR). Biochemical and cellular assays were performed to confirm SPR results and select the promising candidate(s). Finally, limited proteolysis and ligand docking analyses allowed defining the protein region involved in the interaction with the putative inhibitor(s). RESULTS The dimeric spiro-flavonoid 2″-hydroxygenkwanol A, member of a relatively recently discovered class of flavonoids containing a spirane C-atom, has been identified as possible PARP-1 inhibitor. This compound showed a high affinity for the polymerase (KD: 0.32±0.05μM); moreover PARP-1 activity in the presence of 2″-hydroxygenkwanol A was significantly affected both when using the recombinant protein and when measuring the cellular effects. Finally, our study suggests this compound to efficiently interact with the protein catalytic domain, into the nicotine binding pocket. CONCLUSION 2″-hydroxygenkwanol A efficiently binds and inhibits PARP-1 at submicromolar concentrations, thus representing a promising lead for the design of a new class of PARP-1 modulators, useful as therapeutic agents and/or biochemical tools. GENERAL SIGNIFICANCE Our study has identified an additional class of plant molecules, the spiro-biflavonoids, with known beneficial pharmacological properties but with an unknown mechanism of action, as a possible novel class of PARP-1 activity inhibitors.
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Affiliation(s)
- Fabrizio Dal Piaz
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy.
| | - Piera Ferro
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Antonio Vassallo
- Department of Sciences, University of Basilicata, Via Nazario Sauro 85, 85100 Potenza, SA, Italy
| | - Michele Vasaturo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Giovanni Forte
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Maria Giovanna Chini
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Giuseppe Bifulco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Alessandra Tosco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy.
| | - Nunziatina De Tommasi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
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21
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Katsetos CD, Reginato MJ, Baas PW, D'Agostino L, Legido A, Tuszyn Ski JA, Dráberová E, Dráber P. Emerging microtubule targets in glioma therapy. Semin Pediatr Neurol 2015; 22:49-72. [PMID: 25976261 DOI: 10.1016/j.spen.2015.03.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Major advances in the genomics and epigenomics of diffuse gliomas and glioblastoma to date have not been translated into effective therapy, necessitating pursuit of alternative treatment approaches for these therapeutically challenging tumors. Current knowledge of microtubules in cancer and the development of new microtubule-based treatment strategies for high-grade gliomas are the topic in this review article. Discussed are cellular, molecular, and pharmacologic aspects of the microtubule cytoskeleton underlying mitosis and interactions with other cellular partners involved in cell cycle progression, directional cell migration, and tumor invasion. Special focus is placed on (1) the aberrant overexpression of βIII-tubulin, a survival factor associated with hypoxic tumor microenvironment and dynamic instability of microtubules; (2) the ectopic overexpression of γ-tubulin, which in addition to its conventional role as a microtubule-nucleating protein has recently emerged as a transcription factor interacting with oncogenes and kinases; (3) the microtubule-severing ATPase spastin and its emerging role in cell motility of glioblastoma cells; and (4) the modulating role of posttranslational modifications of tubulin in the context of interaction of microtubules with motor proteins. Specific antineoplastic strategies discussed include downregulation of targeted molecules aimed at achieving a sensitization effect on currently used mainstay therapies. The potential role of new classes of tubulin-binding agents and ATPase inhibitors is also examined. Understanding the cellular and molecular mechanisms underpinning the distinct behaviors of microtubules in glioma tumorigenesis and drug resistance is key to the discovery of novel molecular targets that will fundamentally change the prognostic outlook of patients with diffuse high-grade gliomas.
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Affiliation(s)
- Christos D Katsetos
- Department of Pediatrics, Drexel University College of Medicine, Section of Neurology and Pediatric Neuro-oncology Program, St Christopher's Hospital for Children, Philadelphia, PA; Department of Pathology and Laboratory Medicine, Drexel University College of Medicine, Philadelphia, PA.
| | - Mauricio J Reginato
- Department of Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, PA
| | - Peter W Baas
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA
| | - Luca D'Agostino
- Department of Pediatrics, Drexel University College of Medicine, Section of Neurology and Pediatric Neuro-oncology Program, St Christopher's Hospital for Children, Philadelphia, PA
| | - Agustin Legido
- Department of Pediatrics, Drexel University College of Medicine, Section of Neurology and Pediatric Neuro-oncology Program, St Christopher's Hospital for Children, Philadelphia, PA
| | - Jack A Tuszyn Ski
- Department of Oncology, University of Alberta, Cross Cancer Institute, Edmonton, Alberta, Canada; Department of Physics, University of Alberta, Edmonton, Alberta, Canada
| | - Eduarda Dráberová
- Department of Biology of Cytoskeleton, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Pavel Dráber
- Department of Biology of Cytoskeleton, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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22
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Moridi Farimani M, Mazarei Z. Sesterterpenoids and other constituents from Salvia lachnocalyx Hedge. Fitoterapia 2014; 98:234-40. [DOI: 10.1016/j.fitote.2014.08.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 08/04/2014] [Accepted: 08/05/2014] [Indexed: 12/26/2022]
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23
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Caputo M, De Rosa MC, Rescigno T, Zirpoli H, Vassallo A, De Tommasi N, Torino G, Tecce MF. Binding of polyunsaturated fatty acids to LXRα and modulation of SREBP-1 interaction with a specific SCD1 promoter element. Cell Biochem Funct 2014; 32:637-46. [PMID: 25264165 DOI: 10.1002/cbf.3067] [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] [Received: 06/10/2014] [Revised: 08/01/2014] [Accepted: 08/23/2014] [Indexed: 01/07/2023]
Abstract
Stearoyl-CoA desaturase 1 (SCD1) is the rate limiting enzyme in unsaturated fatty acid biosynthesis. This enzyme has an important role in the regulation of hepatic lipogenesis and lipid oxidation, and alterations in these pathways may lead to several diseases. We examined, in HepG2 cell cultures, the mechanism of SCD1 regulation considering the involvement of two transcription factors: liver X receptor alpha (LXRα) and sterol regulatory element-binding protein-1 (SREBP-1), also investigating the effect of dietary polyunsaturated fatty acids (PUFAs) on this process. The analysis of SCD1 promoter allowed to identify a functional SREBP-1 binding site (SRE 1). LXRα activation increased SCD1 protein level through upregulation of SREBP-1 and its consequent binding to SRE 1 sequence. Polyunsaturated docosahexaenoic acid (DHA, C22:6), eicosapentaenoic acid (EPA, C20:5) and arachidonic acid (AA, C20:4) were able to reduce SREBP-1 binding to SCD1 promoter, while saturated stearic acid (SA, C18:0) did not give any effect. Surface plasmon resonance analysis showed a direct binding of DHA, EPA and AA to LXRα. These data indicate a direct inhibitory interaction of PUFAs with LXRα, a consequent reduction of SREBP-1 and of its binding to SCD1 promoter. This information provides a mechanism to explain the regulation of lipogenic pathways induced by PUFAs.
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Affiliation(s)
- Mariella Caputo
- Department of Pharmacy, University of Salerno, Fisciano, Salerno, Italy
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24
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Potential role of tubulin tyrosine ligase-like enzymes in tumorigenesis and cancer cell resistance. Cancer Lett 2014; 350:1-4. [DOI: 10.1016/j.canlet.2014.04.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 04/22/2014] [Accepted: 04/26/2014] [Indexed: 12/27/2022]
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Ebrahimi SN, Farimani MM, Mirzania F, Soltanipoor MA, De Mieri M, Hamburger M. Manoyloxide Sesterterpenoids from Salvia mirzayanii. JOURNAL OF NATURAL PRODUCTS 2014; 77:848-854. [PMID: 24689905 DOI: 10.1021/np400948n] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Five new manoyloxide-type sesterterpenes were isolated from aerial parts of Salvia mirzayanii, a species endemic to Iran. The planar structures were established by means of 1D and 2D NMR and HRESIMS. Compounds 1-3 differed only in their configurations at C-13 and C-14. Assignment of relative and absolute configurations was achieved by NOESY experiments and by comparison of experimental and simulated ECD spectra of possible stereoisomers. The absolute configurations of 4 and 5 were established in a similar manner.
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Affiliation(s)
- Samad N Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University , G. C., Evin, Tehran, Iran
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Milella L, Bader A, De Tommasi N, Russo D, Braca A. Antioxidant and free radical-scavenging activity of constituents from two Scorzonera species. Food Chem 2014; 160:298-304. [PMID: 24799242 DOI: 10.1016/j.foodchem.2014.03.097] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 03/17/2014] [Accepted: 03/19/2014] [Indexed: 12/30/2022]
Abstract
The aim of this study was to investigate the secondary metabolites content of Scorzonera papposa DC., an edible plant eaten in the desert region of Jordan and to assess its antioxidant and free radical-scavenging activity. By using this bioassay-oriented approach nine compounds, including the new natural compounds (6-trans-p-coumaroyl)-3-O-β-D-glucopyranosyl-2-deoxy-D-riburonic acid (1), (6-cis-p-coumaroyl)-3-O-β-D-glucopyranosyl-2-deoxy-D-riburonic acid (2a), (6-trans-p-coumaroyl)-3-O-β-D-glucopyranosyl-2-deoxy-D-riburonic acid methyl ester (3), and (6-trans-p-coumaroyl)-3-O-β-D-glucopyranosyl-(5-acetyl)-2-deoxy-D-riburonic acid (4), having the rare deoxy-D-riburonic acid moiety, were isolated. Their structures were elucidated by UV, MS, (1)H and (13)C NMR and 2D NMR. The antioxidant activity of the S. papposa pure compounds and of related derivatives isolated from another Scorzonera species (S. judaica Eig.) was also tested. The Relative Antioxidant Capacity Index (RACI) was applied as an integrated method to compare the antioxidant activities obtained using different chemical methods.
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Affiliation(s)
- Luigi Milella
- Dipartimento di Scienze, Università degli Studi della Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Ammar Bader
- Department of Pharmacognosy, Faculty of Pharmacy, Umm Al-Qura University, P.O. Box 13174, 21955 Makkah, Saudi Arabia
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università di Salerno, via Giovanni Paolo II 132, 84084 Fisciano, Italy.
| | - Daniela Russo
- Dipartimento di Scienze, Università degli Studi della Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Alessandra Braca
- Dipartimento di Farmacia, Università di Pisa, via Bonanno 33, 56126 Pisa, Italy
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Liu Y, Guo M. Chemical proteomic strategies for the discovery and development of anticancer drugs. Proteomics 2014; 14:399-411. [DOI: 10.1002/pmic.201300261] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Revised: 09/26/2013] [Accepted: 10/11/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Yuanzhen Liu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture; Wuhan Botanical Garden; Chinese Academy of Sciences; Wuhan P. R. China
| | - Mingquan Guo
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture; Wuhan Botanical Garden; Chinese Academy of Sciences; Wuhan P. R. China
- The Keck School of Medicine; University of Southern California; Los Angeles CA USA
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Bader A, Cioni PL, De Tommasi N, Flamini G. Essential Oil Compositions of Two Populations of Salvia samuelssonii Growing in Different Biogeographical Regions of Jordan. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900139] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The composition of the essential oils of flowering aerial parts of Salvia samuelssonii Rech. fil. (Lamiaceae Section Aethiopis), collected in two different biogeographical regions, has been analyzed. Sample1, collected in a Mediterranean-like region, “As-Subayhi”, contains mainly monoterpenes (54.2%), sesquiterpenes (27.6%) and phenylpropanoids (10.5%), while sample 2, collected in the Irano-Turanian region, “Al-Adasiyyah”, contains mainly phenylpropanoids (30.6%), monoterpenes (24.9%) and sesquiterpenes (21.2%). In Sample1, the most representative constituents were sabinene (21.5%), cis-chrysanthenyl acetate (20.8%), germacrene D (9.3%) and myristicin (5.9%), while in sample 2, myristicin (24.1%), sclareoloxide (6.3%), and germacrene D (5.7%) were main constituents. The rate of oxygenated derivatives in the Irano-Turanian sample was higher than the Mediterranean sample. Myristicin is an unusual constituent of Salvia species.
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Affiliation(s)
- Ammar Bader
- Department of Pharmacognosy, Faculty of Pharmacy, Umm Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Pier Luigi Cioni
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo, 84084 Fisciano (SA), Italy
| | - Guido Flamini
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy
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Terracciano S, Chini MG, Piaz FD, Vassallo A, Riccio R, Bruno I, Bifulco G. Dimeric and trimeric triazole based molecules as a new class of Hsp90 molecular chaperone inhibitors. Eur J Med Chem 2013; 65:464-76. [DOI: 10.1016/j.ejmech.2013.05.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 05/14/2013] [Accepted: 05/15/2013] [Indexed: 01/05/2023]
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Dal Piaz F, Cotugno R, Lepore L, Vassallo A, Malafronte N, Lauro G, Bifulco G, Belisario MA, De Tommasi N. Chemical proteomics reveals HSP70 1A as a target for the anticancer diterpene oridonin in Jurkat cells. J Proteomics 2013; 82:14-26. [DOI: 10.1016/j.jprot.2013.01.030] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 12/12/2012] [Accepted: 01/24/2013] [Indexed: 12/11/2022]
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Piaz FD, Vassallo A, Temraz A, Cotugno R, Belisario MA, Bifulco G, Chini MG, Pisano C, De Tommasi N, Braca A. A Chemical–Biological Study Reveals C9-type Iridoids as Novel Heat Shock Protein 90 (Hsp90) Inhibitors. J Med Chem 2013; 56:1583-95. [DOI: 10.1021/jm301398y] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fabrizio Dal Piaz
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Antonio Vassallo
- Dipartimento di Scienze, Università degli Studi della Basilicata, Viale
dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Abeer Temraz
- Faculty of Pharmacy, Al Azhar University, Nasr-City, 11371 Cairo, Egypt
| | - Roberta Cotugno
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Maria A. Belisario
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Giuseppe Bifulco
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Maria G. Chini
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Claudio Pisano
- Sigma-Tau Research and Development, Via Pontina Km 30,400, 00040 Pomezia
(RM), Italy
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Alessandra Braca
- Dipartimento
di Farmacia, Università di Pisa,
Via Bonanno 33, 56126 Pisa,
Italy
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Faiella L, Piaz FD, Bisio A, Tosco A, De Tommasi N. A chemical proteomics approach reveals Hsp27 as a target for proapoptotic clerodane diterpenes. MOLECULAR BIOSYSTEMS 2013; 8:2637-44. [PMID: 22802135 DOI: 10.1039/c2mb25171j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Clerodane diterpenoids are a class of naturally occurring molecules widely distributed in the Lamiaceae family. Neo-clerodane diterpenoids from Salvia ssp were recently described as compounds inhibiting the proliferation of human cancer cell lines. To gain new insights into molecular mechanism(s) underlying the antitumor potential of this class of compounds, we used a chemical proteomics approach to analyse the cellular interactome of hardwickiic acid (HAA) selected as a representative molecule. HAA was linked to an opportune 1,1'-carbonyldiimidazole modified by 1,12-dodecanediamine and then immobilized on a matrix support. The modified beads were then used as bait for fishing the potential partners of HAA in a U937 cell lysate. We identified heat shock protein 27 (Hsp27), an ATP-independent antiapoptotic chaperone characterized for its tumorigenic and metastatic properties and now referenced as a major therapeutic target in many types of cancer, as a major HAA partner. Here, we also report the study of HAA-Hsp27 interaction by means of a panel of chemical and biological approaches, including surface plasmon resonance measurements limited proteolysis, and biochemical assays. Our data suggest that HAA could provide a potential tool to develop strategies for the discovery of Hsp27 chemical inhibitors.
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Affiliation(s)
- Laura Faiella
- Dipartimento di Scienze Farmaceutiche, Università di Pisa, via Bonanno 33, 56126 Pisa, Italy
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Dal Piaz F, Vassallo A, Chini MG, Cordero FM, Cardona F, Pisano C, Bifulco G, De Tommasi N, Brandi A. Natural iminosugar (+)-lentiginosine inhibits ATPase and chaperone activity of hsp90. PLoS One 2012; 7:e43316. [PMID: 22916240 PMCID: PMC3423353 DOI: 10.1371/journal.pone.0043316] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Accepted: 07/19/2012] [Indexed: 01/04/2023] Open
Abstract
Heat shock protein 90 (Hsp90) is a significant target in the development of rational cancer therapy due to its role at the crossroads of multiple signaling pathways associated with cell proliferation and cell viability. The relevance of Hsp90 as a therapeutic target for numerous diseases states has prompted the identification and optimization of novel Hsp90 inhibitors as an emerging therapeutic strategy. We performed a screening aimed to identify novel Hsp90 inhibitors among several natural compounds and we focused on the iminosugar (+)-lentiginosine, a natural amyloglucosidases inhibitor, for its peculiar bioactivity profile. Characterization of Hsp90 inhibition was performed using a panel of chemical and biological approaches, including limited proteolysis, biochemical and cellular assays. Our result suggested that the middle domain of Hsp90, as opposed to its ATP-binding pocket, is a promising binding site for new classes of Hsp90 inhibitors with multi-target anti-cancer potential.
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Affiliation(s)
- Fabrizio Dal Piaz
- Dipartimento di Scienze Farmaceutiche e Biomediche, Università di Salerno, Fisciano, Italy
| | - Antonio Vassallo
- Dipartimento di Chimica, Università degli Studi della Basilicata, Potenza, Italy
| | - Maria Giovanna Chini
- Dipartimento di Scienze Farmaceutiche e Biomediche, Università di Salerno, Fisciano, Italy
| | - Franca M. Cordero
- Departimento di Chimica “Ugo Schiff”, Università of Firenze, Sesto Fiorentino, Italy
| | - Francesca Cardona
- Departimento di Chimica “Ugo Schiff”, Università of Firenze, Sesto Fiorentino, Italy
| | | | - Giuseppe Bifulco
- Dipartimento di Scienze Farmaceutiche e Biomediche, Università di Salerno, Fisciano, Italy
| | - Nunziatina De Tommasi
- Dipartimento di Scienze Farmaceutiche e Biomediche, Università di Salerno, Fisciano, Italy
- * E-mail:
| | - Alberto Brandi
- Departimento di Chimica “Ugo Schiff”, Università of Firenze, Sesto Fiorentino, Italy
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Fawaz MV, Topper M, Firestine SM. The ATP-grasp enzymes. Bioorg Chem 2011; 39:185-91. [PMID: 21920581 PMCID: PMC3243065 DOI: 10.1016/j.bioorg.2011.08.004] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 08/12/2011] [Accepted: 08/13/2011] [Indexed: 12/17/2022]
Abstract
The ATP-grasp enzymes consist of a superfamily of 21 proteins that contain an atypical ATP-binding site, called the ATP-grasp fold. The ATP-grasp fold is comprised of two α+β domains that "grasp" a molecule of ATP between them and members of the family typically have an overall structural design containing three common conserved focal domains. The founding members of the family consist of biotin carboxylase, d-ala-d-ala ligase and glutathione synthetase, all of which catalyze the ATP-assisted reaction of a carboxylic acid with a nucleophile via the formation of an acylphosphate intermediate. While most members of the superfamily follow this mechanistic pathway, studies have demonstrated that two enzymes catalyze only the phosphoryl transfer step and thus are kinases instead of ligases. Members of the ATP-grasp superfamily are found in several metabolic pathways including de novo purine biosynthesis, gluconeogenesis, and fatty acid synthesis. Given the critical nature of these enzymes, researchers have actively sought the development of potent inhibitors of several members of the superfamily as antibacterial and anti-obseity agents. In this review, we will discuss the structure, function, mechanism, and inhibition of the ATP-grasp enzymes.
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Affiliation(s)
| | | | - Steven M. Firestine
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201
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Bader A, De Tommasi N, Cotugno R, Braca A. Phenolic compounds from the roots of Jordanian viper's grass, Scorzonera judaica. JOURNAL OF NATURAL PRODUCTS 2011; 74:1421-1426. [PMID: 21650157 DOI: 10.1021/np200143s] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Nine new phenolic compounds, 3S-hydrangenol 40-O-R-L-rhamnopyranoysl-(1-->3)-β-D-glucopyranoside (1), thunberginol F 7-O-β-D-glucopyranoside (2), 2-hydroxy-6-[2-(4-hydroxyphenyl)-2-oxo-ethyl]benzoic acid (3), 2-hydroxy-6-[2-(3,4-dihydroxyphenyl)-2-oxo-ethyl]benzoic acid (4), 2-hydroxy-6-[2-(3,4-dihydroxyphenyl-5-methoxy)-2-oxoethyl]benzoic acid (5), hydrangeic acid 40-O-β-D-glucopyranoside (6), E-3-(3,4-dihydroxybenzylidene)-5-(3,4-dihydroxyphenyl)dihydrofuran-2-one (7), Z-3-(3,4-dihydroxybenzylidene)-5-(3,4-dihydroxyphenyl)-2(3H)-furanone (8), and 4-[β-D-glucopyranosyl)hydroxy]-pinoresinol (9), and nine known compounds were isolated from the roots of Scorzonera judaica. Structures of 1-9 were elucidated by mass spectrometry, extensive 1D and 2D NMR spectroscopy, and CD spectroscopy.All compounds were evaluated for cytotoxic activity.
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Affiliation(s)
- Ammar Bader
- Faculty of Pharmacy, Al-Zaytoonah Private University of Jordan , P.O. Box 130, 11733 Amman, Jordan
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Tarallo V, Lepore L, Marcellini M, Dal Piaz F, Tudisco L, Ponticelli S, Lund FW, Roepstorff P, Orlandi A, Pisano C, De Tommasi N, De Falco S. The biflavonoid amentoflavone inhibits neovascularization preventing the activity of proangiogenic vascular endothelial growth factors. J Biol Chem 2011; 286:19641-51. [PMID: 21471210 PMCID: PMC3103343 DOI: 10.1074/jbc.m110.186239] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The proangiogenic members of VEGF family and related receptors play a central role in the modulation of pathological angiogenesis. Recent insights indicate that, due to the strict biochemical and functional relationship between VEGFs and related receptors, the development of a new generation of agents able to target contemporarily more than one member of VEGFs might amplify the antiangiogenic response representing an advantage in term of therapeutic outcome. To identify molecules that are able to prevent the interaction of VEGFs with related receptors, we have screened small molecule collections consisting of >100 plant extracts. Here, we report the isolation and identification from an extract of the Malian plant Chrozophora senegalensis of the biflavonoid amentoflavone as an antiangiogenic bioactive molecule. Amentoflavone can to bind VEGFs preventing the interaction and phosphorylation of VEGF receptor 1 and 2 (VEGFR-1,VEGFR-2) and to inhibit endothelial cell migration and capillary-like tube formation induced by VEGF-A or placental growth factor 1 (PlGF-1) at low μm concentration. In vivo, amentoflavone is able to inhibit VEGF-A-induced chorioallantoic membrane neovascularization as well as tumor growth and associated neovascularization, as assessed in orthotropic melanoma and xenograft colon carcinoma models. In addition structural studies performed on the amentoflavone·PlGF-1 complex have provided evidence that this biflavonoid effectively interacts with the growth factor area crucial for VEGFR-1 receptor recognition. In conclusion, our results demonstrate that amentoflavone represents an interesting new antiangiogenic molecule that is able to prevent the activity of proangiogenic VEGF family members and that the biflavonoid structure is a new chemical scaffold to develop powerful new antiangiogenic molecules.
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Affiliation(s)
- Valeria Tarallo
- Institute of Genetics and Biophysics, Adriano Buzzati-Traverso, Napoli, Italy
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Moghaddam FM, Farimani MM, Seirafi M, Taheri S, Khavasi HR, Sendker J, Proksch P, Wray V, Edrada R. Sesterterpenoids and other constituents of Salvia sahendica. JOURNAL OF NATURAL PRODUCTS 2010; 73:1601-5. [PMID: 20735065 DOI: 10.1021/np1002516] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
A new sesterterpene (1), a new norsesterterpene (3), and two new norditerpenes (4, 5) were isolated from the aerial parts of Salvia sahendica, together with 12 known compounds, comprising a sesterterpene, a sesquiterpene, a diterpene, two triterpenes, two steroidal compounds, and five flavonoids. The structures of the new compounds were established by spectroscopic data interpretation, and in the case of 4, its structure was confirmed by single-crystal X-ray analysis.
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Affiliation(s)
- Firouz Matloubi Moghaddam
- Laboratory of Organic Synthesis & Natural Products, Department of Chemistry, Sharif University of Technology, Tehran, Iran.
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Chen SM, Meng LH, Ding J. New microtubule-inhibiting anticancer agents. Expert Opin Investig Drugs 2010; 19:329-43. [DOI: 10.1517/13543780903571631] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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A fast and efficient LC–MS/MS method for detection, identification and quantitative analysis of bioactive sesterterpenes in Salvia dominica crude extracts. J Pharm Biomed Anal 2010; 51:70-7. [DOI: 10.1016/j.jpba.2009.08.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2009] [Revised: 07/24/2009] [Accepted: 08/04/2009] [Indexed: 11/18/2022]
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