1
|
Ippoliti FM, Wonilowicz LG, Adamson NJ, Darzi ER, Donaldson JS, Nasrallah DJ, Mehta MM, Kelleghan AV, Houk KN, Garg NK. Total Synthesis of Lissodendoric Acid A. Angew Chem Int Ed Engl 2024; 63:e202406676. [PMID: 38695853 DOI: 10.1002/anie.202406676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Indexed: 07/04/2024]
Abstract
We describe a full account of our synthetic strategy leading to the first total synthesis of the manzamine alkaloid lissodendoric acid A . These efforts demonstrate that strained cyclic allenes are valuable synthetic building blocks and can be employed efficiently in total synthesis.
Collapse
Affiliation(s)
- Francesca M Ippoliti
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Chemistry, Hamline University, St. Paul, Minnesota, 55104, USA
| | - Laura G Wonilowicz
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Nathan J Adamson
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Discovery Chemistry, Genentech, Inc., South San Francisco, CA 94080, USA
| | - Evan R Darzi
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
- ElectraTect, Inc., Phoenix, AZ 85004, USA
| | - Joyann S Donaldson
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Pfizer Oncology Medicinal Chemistry, San Diego, CA 92121, USA
| | - Daniel J Nasrallah
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Chemistry, Roanoke College, Salem, Virginia, 24153, USA
| | - Milauni M Mehta
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Small Molecule Therapeutic Discovery, Amgen Research, Amgen Inc., Thousand Oaks, CA 91320, USA
| | - Andrew V Kelleghan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Gilead Sciences Medicinal Chemistry, Foster City, CA 94404, USA
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Neil K Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| |
Collapse
|
2
|
Maykovich T, Hardy S, Hamann MT, Cray J. Manzamine-A Alters In Vitro Calvarial Osteoclast Function. JOURNAL OF NATURAL PRODUCTS 2024; 87:560-566. [PMID: 38383319 PMCID: PMC11173362 DOI: 10.1021/acs.jnatprod.3c01097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Manzamine-A is a marine-derived alkaloid that has demonstrated antimalarial and antiproliferative properties and is an emerging drug lead compound as a possible intervention in certain cancers. This compound has been found to modulate SIX1 gene expression, a target that is critical for the proliferation and survival of cells via various developmental pathways. As yet, little research has focused on manzamine-A and how its use may affect tissue systems including bone. Here we hypothesized that manzamine-A, through its interaction with SIX1, would alter precursor cells that give rise to the bone cell responsible for remodeling: the osteoclast. We further hypothesized reduced effects in differentiated osteoclasts, as these cells are generally not mitotic. We interrogated the effects of manzamine-A on preosteoclasts and osteoclasts. qrtPCR, MTS cell viability, Caspase 3/7, and TRAP staining were used as a functional assay. Preosteoclasts show responsiveness to manzamine-A treatment exhibited by decreases in cell viability and an increase in apoptosis. Osteoclasts also proved to be affected by manzamine-A but only at higher concentrations where apoptosis was increased and activation was reduced. In summary, our presented results suggest manzamine-A may have significant effects on bone development and health through multiple cell targets, previously shown in the osteoblast cell lineage, the cell responsible for mineralized tissue formation, and here in the osteoclast, the cell responsible for the removal of mineralized tissue and renewal via precipitation of bone remodeling.
Collapse
Affiliation(s)
- Tyler Maykovich
- Department of Biomedical Education and Anatomy, The Ohio State University College of Medicine, Columbus, Ohio 43210, United States
| | - Samantha Hardy
- Department of Biomedical Education and Anatomy, The Ohio State University College of Medicine, Columbus, Ohio 43210, United States
| | - Mark T Hamann
- Departments of Drug Discovery and Biomedical Sciences and Public Health, Colleges of Pharmacy and Medicine, Medical University of South Carolina, Charleston, South Carolina 29425-1410, United States
| | - James Cray
- Department of Biomedical Education and Anatomy, The Ohio State University College of Medicine, Columbus, Ohio 43210, United States
- Division of Biosciences, The Ohio State College of Dentistry, Columbus, Ohio 43210, United States
| |
Collapse
|
3
|
Zayed AOH, Altarabeen M, AlShamaileh E, Zain SM. The potential of some functional group compounds substituted 8-Manzamine A as RSK1 inhibitors: molecular docking and molecular dynamics simulations. J Biomol Struct Dyn 2024:1-10. [PMID: 38319051 DOI: 10.1080/07391102.2024.2310792] [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: 10/17/2023] [Accepted: 01/19/2024] [Indexed: 02/07/2024]
Abstract
Cancer, an incurable global disease, demands urgent anti-cancer drug development. Marine alkaloids like Manzamine and its derivatives show promise as RSK inhibitors against cancer cell invasion. Replacing the hydrogen at the 8-position of Manzamine A with a hydroxyl group has been shown to significantly enhance its biological activity. In this article, we designed various functional group compounds (A1-A21) substituted 8-Manzamine A by docking, MM-GBSA, molecular dynamics (MD) simulation, and well-tempered metadynamics (WT-MetaD) simulations to evaluate their potential as RSK1 inhibitors. Ligands A1-A21 were docked in the RSK1 N-terminal kinase domain (PDB ID: 2Z7Q) using the Glide module. The calculation of binding energy was performed using Prime MM-GB/SA, while MD simulations were conducted with the Desmond module of Schrodinger suite 2023. Compound A5 exhibits the highest G-score (-7.01) compared to 8-Hydroxymanzamine A (-6.08). Additionally, compounds A6, A10, A12, A17, A11, A4, and A13 demonstrate increased activity against RSK1 when compared to both 8-Hydroxymanzamine A and Manzamine A. Residues LEU68, VAL76, LEU141, PHE143, LEU144, PHE150, ASP148, GLU191, and LEU194 of RSK1 protein play a key role in binding with ligands. An MD simulation of Compound A5 was carried out to explore the dynamic interactions within the protein-ligand complex. Furthermore, WT-MetaD simulations validated the docking study results and identified the most energetically favored conformations for the A5/RSK1 complex. Ligands A5, A6, A10, A12, A17, A11, A4, and A13, featuring diverse functional groups and good Glide scores, may have the potential for significant RSK1 activity and merit further development.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Ala' Omar Hasan Zayed
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Mousa Altarabeen
- Department of Basic Medical Sciences, Faculty of Medicine, Aqaba Medical Sciences University, Aqaba, Jordan
| | - Ehab AlShamaileh
- Department of Chemistry, Faculty of Science, The University of Jordan, Amman, Jordan
| | - Sharifuddin Md Zain
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| |
Collapse
|
4
|
Mehta MM, Gonzalez JAM, Bachman JL, Garg NK. Cyclic Allene Approach to the Manzamine Alkaloid Keramaphidin B. Org Lett 2023; 25:5553-5557. [PMID: 37387644 PMCID: PMC10460088 DOI: 10.1021/acs.orglett.3c01489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
We report an approach to the core of the manzamine alkaloid keramaphidin B that relies on the strain-promoted cycloaddition of an azacyclic allene with a pyrone trapping partner. The cycloaddition is tolerant of nitrile and primary amide functional groups and can be complemented with a subsequent retro-Diels-Alder step. These efforts demonstrate that strained cyclic allenes can be used to build significant structural complexity and should encourage further studies of these fleeting intermediates.
Collapse
Affiliation(s)
- Milauni M Mehta
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Jordan A M Gonzalez
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - James L Bachman
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Neil K Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| |
Collapse
|
5
|
Ippoliti FM, Adamson NJ, Wonilowicz LG, Nasrallah DJ, Darzi ER, Donaldson JS, Garg NK. Total synthesis of lissodendoric acid A via stereospecific trapping of a strained cyclic allene. Science 2023; 379:261-265. [PMID: 36656952 PMCID: PMC10462259 DOI: 10.1126/science.ade0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 11/18/2022] [Indexed: 01/21/2023]
Abstract
Small rings that contain allenes are unconventional transient compounds that have been known since the 1960s. Despite being discovered around the same time as benzyne and offering a number of synthetically advantageous features, strained cyclic allenes have seen relatively little use in chemical synthesis. We report a concise total synthesis of the manzamine alkaloid lissodendoric acid A, which hinges on the development of a regioselective, diastereoselective, and stereospecific trapping of a fleeting cyclic allene intermediate. This key step swiftly assembles the azadecalin framework of the natural product, allows for a succinct synthetic endgame, and enables a 12-step total synthesis (longest linear sequence; 0.8% overall yield). These studies demonstrate that strained cyclic allenes are versatile building blocks in chemical synthesis.
Collapse
Affiliation(s)
| | | | - Laura G. Wonilowicz
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - Daniel J. Nasrallah
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | | | | | - Neil K. Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| |
Collapse
|
6
|
Rajput VS, Runthala A, Khan IA. Shikimate Kinase Inhibitors: An Update on Promising Strategy against Mycobacterium tuberculosis. Curr Drug Targets 2023; 24:388-405. [PMID: 36752299 DOI: 10.2174/1389450124666230208102645] [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: 07/04/2022] [Revised: 11/16/2022] [Accepted: 11/25/2022] [Indexed: 02/09/2023]
Abstract
Humanity has been battling with tuberculosis (TB) for a long period, and despite the availability of drugs well-known to act against the deadly microbe, the menace is still very far from reaching its end. Moreover, problems related to TB chemotherapy, such as lengthy treatment periods leading to poor patient compliance, increasing drug resistance, and association with another deadlier disease HIV-AIDS, make the situation alarming, thereby pressing the need for the discovery of new potent drugs urgently. Therefore, a drug target that is essential for survival and exclusive to M. tuberculosis presents a promising platform to explore novel molecules against the microorganism for better pathogen clearance with minimal toxicity. The shikimate pathway that leads to the synthesis of essential aromatic amino acids is one such attractive target. Shikimate kinase, the fifth enzyme of this pathway, converts shikimate to shikimate-3-phosphate by using ATP as a cosubstrate. Targeting shikimate kinase could be an effective strategy in light of its essentiality and absence of any homologue in mammals. This review discusses different strategies adopted for discovering novel compounds or scaffolds targeting M. tuberculosis shikimate kinase (MtSK) in vitro. The application of substrate analogues, their structure, and ligand-based approach for screening a library of anti-mycobacterial compounds, marine-derived molecules, and commercially available libraries have yielded promising MtSK inhibitors exhibiting micro-molar activities. To develop these leads into future drugs with minimum off-target effects on the host microenvironment, the molecules need to be structurally optimized for improved activities against enzymes and whole-cell organisms.
Collapse
Affiliation(s)
- Vikrant Singh Rajput
- Department of Biomedical Engineering, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, 305817, Ajmer, Rajasthan, India
| | - Ashish Runthala
- Department of Bio-Technology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, AP, India
| | - Inshad Ali Khan
- Department of Microbiology, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, 305817, Ajmer, Rajasthan, India
| |
Collapse
|
7
|
AlTarabeen M, Al-Balas Q, Albohy A, Müller WEG, Proksch P. Marine-Based Candidates as Potential RSK1 Inhibitors: A Computational Study. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010202. [PMID: 36615396 PMCID: PMC9822162 DOI: 10.3390/molecules28010202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/22/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022]
Abstract
Manzamines are chemically related compounds extracted from the methanolic extract of Acanthostrongylophora ingens species. Seven compounds were identified by our research group and are being characterized. As their biological target is unknown, this work is based on previous screening work performed by Mayer et al., who revealed that manzamine A could be an inhibitor of RSK1 kinase. Within this work, the RSK1 N-terminal kinase domain is exploited as a target for our work and the seven compounds are docked using Autodock Vina software. The results show that one of the most active compounds, Manzamine A N-oxide (5), with an IC50 = 3.1 μM, displayed the highest docking score. In addition, the compounds with docking scores lower than the co-crystalized ligand AMP-PCP (-7.5 and -8.0 kcal/mol) for ircinial E (1) and nakadomarin A (7) were found to be inferior in activity in the biological assay. The docking results successfully managed to predict the activities of four compounds, and their in silico results were in concordance with their biological data. The β-carboline ring showed noticeable receptor binding, which could explain its reported biological activities, while the lipophilic side of the compound was found to fit well inside the hydrophobic active site.
Collapse
Affiliation(s)
- Mousa AlTarabeen
- Department of Basic Medical Sciences, Faculty of Medicine, Aqaba Medical Sciences University, Aqaba 11191, Jordan
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine University, Universitätsstrasse 1, 40225 Düsseldorf, Germany
- Correspondence: ; Tel.: +49-211-81-14163; Fax: +49-211-81-11923
| | - Qosay Al-Balas
- Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science & Technology, Irbid 22110, Jordan
| | - Amgad Albohy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo 11837, Egypt
- The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo 11837, Egypt
| | - Werner Ernst Georg Müller
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - Peter Proksch
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine University, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| |
Collapse
|
8
|
Khotimchenko YS, Silachev DN, Katanaev VL. Marine Natural Products from the Russian Pacific as Sources of Drugs for Neurodegenerative Diseases. Mar Drugs 2022; 20:708. [PMID: 36421986 PMCID: PMC9697637 DOI: 10.3390/md20110708] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 09/05/2023] Open
Abstract
Neurodegenerative diseases are growing to become one of humanity's biggest health problems, given the number of individuals affected by them. They cause enough mortalities and severe economic impact to rival cancers and infections. With the current diversity of pathophysiological mechanisms involved in neurodegenerative diseases, on the one hand, and scarcity of efficient prevention and treatment strategies, on the other, all possible sources for novel drug discovery must be employed. Marine pharmacology represents a relatively uncharted territory to seek promising compounds, despite the enormous chemodiversity it offers. The current work discusses one vast marine region-the Northwestern or Russian Pacific-as the treasure chest for marine-based drug discovery targeting neurodegenerative diseases. We overview the natural products of neurological properties already discovered from its waters and survey the existing molecular and cellular targets for pharmacological modulation of the disease. We further provide a general assessment of the drug discovery potential of the Russian Pacific in case of its systematic development to tackle neurodegenerative diseases.
Collapse
Affiliation(s)
- Yuri S. Khotimchenko
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 8 ul. Sukhanova, 690950 Vladivostok, Russia
- A.V. Zhirmunsky National Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, 690950 Vladivostok, Russia
| | - Denis N. Silachev
- Department of Functional Biochemistry of Biopolymers, A.N. Belozersky Research Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
| | - Vladimir L. Katanaev
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 8 ul. Sukhanova, 690950 Vladivostok, Russia
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, University of Geneva, Rue Michel-Servet 1, 1211 Geneva, Switzerland
| |
Collapse
|
9
|
Hardy S, Choo YM, Hamann M, Cray J. Manzamine-A Alters In Vitro Calvarial Osteoblast Function. Mar Drugs 2022; 20:647. [PMID: 36286470 PMCID: PMC9604769 DOI: 10.3390/md20100647] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/07/2022] [Accepted: 10/14/2022] [Indexed: 11/17/2022] Open
Abstract
Manzamine-A is a marine-derived alkaloid which has anti-viral and anti-proliferative properties and is currently being investigated for its efficacy in the treatment of certain viruses (malaria, herpes, HIV-1) and cancers (breast, cervical, colorectal). Manzamine-A has been found to exert effects via modulation of SIX1 gene expression, a gene critical to craniofacial development via the WNT, NOTCH, and PI3K/AKT pathways. To date little work has focused on Manzamine-A and how its use may affect bone. We hypothesize that Manzamine-A, through SIX1, alters bone cell activity. Here, we assessed the effects of Manzamine-A on cells that are responsible for the generation of bone, pre-osteoblasts and osteoblasts. PCR, qrtPCR, MTS cell viability, Caspase 3/7, and functional assays were used to test the effects of Manzamine-A on these cells. Our data suggests Six1 is highly expressed in osteoblasts and their progenitors. Further, osteoblast progenitors and osteoblasts exhibit great sensitivity to Manzamine-A treatment exhibited by a significant decrease in cell viability, increase in cellular apoptosis, and decrease in alkaline phosphatase activity. In silico binding experiment showed that manzamine A potential as an inhibitor of cell proliferation and survival proteins, i.e., Iκb, JAK2, AKT, PKC, FAK, and Bcl-2. Overall, our data suggests Manzamine-A may have great effects on bone health overall and may disrupt skeletal development, homeostasis, and repair.
Collapse
Affiliation(s)
- Samantha Hardy
- Department of Biomedical Education and Anatomy, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Yeun-Mun Choo
- Chemistry Department, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Mark Hamann
- Departments of Drug Discovery and Biomedical Sciences and Public Health, Colleges of Pharmacy and Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - James Cray
- Department of Biomedical Education and Anatomy, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- Division of Biosciences, The Ohio State College of Dentistry, Columbus, OH 43210, USA
| |
Collapse
|
10
|
Lee S, Sperry J. Isolation and biological activity of azocine and azocane alkaloids. Bioorg Med Chem 2021; 54:116560. [PMID: 34923389 DOI: 10.1016/j.bmc.2021.116560] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/04/2021] [Accepted: 12/07/2021] [Indexed: 12/25/2022]
Abstract
Thousands of known alkaloids contain a nitrogen (N) heterocycle. While five-, six- and seven-membered N-heterocycles (ie: pyrroles, imidazoles, indoles, pyridines and azepines and their saturated variants) are common, those with an eight-membered N-heterocycle are comparatively rare. This review discusses the structure and bioactivity of alkaloids that contain an azocine (or saturated azocane) ring, and the array of sources whence they originate.
Collapse
Affiliation(s)
- Stephanie Lee
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand.
| |
Collapse
|
11
|
Piazzi M, Bavelloni A, Cenni V, Faenza I, Blalock WL. Revisiting the Role of GSK3, A Modulator of Innate Immunity, in Idiopathic Inclusion Body Myositis. Cells 2021; 10:cells10113255. [PMID: 34831477 PMCID: PMC8625526 DOI: 10.3390/cells10113255] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 12/13/2022] Open
Abstract
Idiopathic or sporadic inclusion body myositis (IBM) is the leading age-related (onset >50 years of age) autoimmune muscular pathology, resulting in significant debilitation in affected individuals. Once viewed as primarily a degenerative disorder, it is now evident that much like several other neuro-muscular degenerative disorders, IBM has a major autoinflammatory component resulting in chronic inflammation-induced muscle destruction. Thus, IBM is now considered primarily an inflammatory pathology. To date, there is no effective treatment for sporadic inclusion body myositis, and little is understood about the pathology at the molecular level, which would offer the best hopes of at least slowing down the degenerative process. Among the previously examined potential molecular players in IBM is glycogen synthase kinase (GSK)-3, whose role in promoting TAU phosphorylation and inclusion bodies in Alzheimer’s disease is well known. This review looks to re-examine the role of GSK3 in IBM, not strictly as a promoter of TAU and Abeta inclusions, but as a novel player in the innate immune system, discussing some of the recent roles discovered for this well-studied kinase in inflammatory-mediated pathology.
Collapse
Affiliation(s)
- Manuela Piazzi
- “Luigi Luca Cavalli-Sforza” Istituto di Genetica Molecolare-Consiglio Nazionale delle Ricerche (IGM-CNR), 40136 Bologna, Italy; (M.P.); (V.C.)
- IRCCS, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Alberto Bavelloni
- Laboratorio di Oncologia Sperimentale, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy;
| | - Vittoria Cenni
- “Luigi Luca Cavalli-Sforza” Istituto di Genetica Molecolare-Consiglio Nazionale delle Ricerche (IGM-CNR), 40136 Bologna, Italy; (M.P.); (V.C.)
- IRCCS, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Irene Faenza
- Dipartimento di Scienze Biomediche and Neuromotorie, Università di Bologna, 40136 Bologna, Italy;
| | - William L. Blalock
- “Luigi Luca Cavalli-Sforza” Istituto di Genetica Molecolare-Consiglio Nazionale delle Ricerche (IGM-CNR), 40136 Bologna, Italy; (M.P.); (V.C.)
- IRCCS, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
- Correspondence:
| |
Collapse
|
12
|
Silva M, Seijas P, Otero P. Exploitation of Marine Molecules to Manage Alzheimer's Disease. Mar Drugs 2021; 19:md19070373. [PMID: 34203244 PMCID: PMC8307759 DOI: 10.3390/md19070373] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/17/2021] [Accepted: 06/23/2021] [Indexed: 02/07/2023] Open
Abstract
Neurodegenerative diseases are sociosanitary challenges of today, as a result of increased average life expectancy, with Alzheimer’s disease being one of the most prevalent. This pathology is characterized by brain impairment linked to a neurodegenerative process culminating in cognitive decline and behavioral disorders. Though the etiology of this pathology is still unknown, it is usually associated with the appearance of senile plaques and neurofibrillary tangles. The most used prophylaxis relies on anticholinesterase drugs and NMDA receptor antagonists, whose main action is to relieve symptoms and not to treat or prevent the disease. Currently, the scientific community is gathering efforts to disclose new natural compounds effective against Alzheimer’s disease and other neurodegenerative pathologies. Marine natural products have been shown to be promising candidates, and some have been proven to exert a high neuroprotection effect, constituting a large reservoir of potential drugs and nutraceutical agents. The present article attempts to describe the processes of extraction and isolation of bioactive compounds derived from sponges, algae, marine bacteria, invertebrates, crustaceans, and tunicates as drug candidates against AD, with a focus on the success of pharmacological activity in the process of finding new and effective drug compounds.
Collapse
Affiliation(s)
- Marisa Silva
- MARE—Marine and Environmental Sciences Centre, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisbon, Portugal;
- Department of Plant Biology, Faculty of Science, University of Lisbon, Campo Grande, 1749-016 Lisbon, Portugal
| | - Paula Seijas
- Department of Pharmacology, Faculty of Pharmacy, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| | - Paz Otero
- Department of Pharmacology, Faculty of Pharmacy, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain;
- Department of Production and Characterization of Novel Foods, Institute of Food Science Research (CIAL), Campus of International Excellence UAM+CSIC, 28049 Madrid, Spain
- Nutrition and Bromatology Group, CITACA, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, 32004 Ourense, Spain
- Correspondence: or
| |
Collapse
|
13
|
Abstract
Malaria is one of the most impacting public health problems in tropical and subtropical areas of the globe, with approximately 200 million cases worldwide annually. In the absence of an effective vaccine, rapid treatment is vital for effective malaria control. However, parasite resistance to currently available drugs underscores the urgent need for identifying new antimalarial therapies with new mechanisms of action. Among potential drug targets for developing new antimalarial candidates, protein kinases are attractive. These enzymes catalyze the phosphorylation of several proteins, thereby regulating a variety of cellular processes and playing crucial roles in the development of all stages of the malaria parasite life cycle. Moreover, the large phylogenetic distance between Plasmodium species and its human host is reflected in marked differences in structure and function of malaria protein kinases between the homologs of both species, indicating that selectivity can be attained. In this review, we describe the functions of the different types of Plasmodium kinases and highlight the main recent advances in the discovery of kinase inhibitors as potential new antimalarial drug candidates.
Collapse
|
14
|
Almeida MC, Resende DISP, da Costa PM, Pinto MMM, Sousa E. Tryptophan derived natural marine alkaloids and synthetic derivatives as promising antimicrobial agents. Eur J Med Chem 2020; 209:112945. [PMID: 33153766 DOI: 10.1016/j.ejmech.2020.112945] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/01/2020] [Accepted: 10/13/2020] [Indexed: 02/03/2023]
Abstract
Antimicrobial resistance has become a major threat to public health worldwide, as pathogenic microorganisms are finding ways to evade all known antimicrobials. Therefore, the demand for new and effective antimicrobial agents is also increasing. Natural products have always played an important role in drug discovery, either by themselves or as inspiration for synthetic compounds. The marine environment is a rich source of bioactive metabolites, and among them, tryptophan-derived alkaloids stand out for their abundance and by displaying a variety of biological activities, with antimicrobial properties being among the most significant. This review aims to reveal the potential of marine alkaloids derived from tryptophan as antimicrobial agents. Relevant examples of these compounds and their synthetic analogues reported in the last decades are presented and discussed in detail, with their mechanism of action and synthetic approaches whenever relevant. Several tryptophan-derived marine alkaloids have shown potent and promising antimicrobial activities, whether against bacteria, fungi, or virus. Synthetic approaches to many of the compounds have been developed and recent methodologies are proving to be efficient. Even though most of the studies regarding the antimicrobial activity are still preliminary, this class of compounds has proven to be worth of further investigation and may provide useful lead compounds for the development of antimicrobial agents. Overall, marine alkaloids derived from tryptophan are revealed as a valuable class of antimicrobials and molecular modifications in order to reduce the toxicity of these compounds and additional studies regarding their mechanism of action are interesting topics to explore in the future.
Collapse
Affiliation(s)
- Mariana C Almeida
- Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Diana I S P Resende
- Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal.
| | - Paulo M da Costa
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Madalena M M Pinto
- Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Emília Sousa
- Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| |
Collapse
|
15
|
Lhullier C, Moritz MIG, Tabalipa EO, Sardá FN, Schneider NFZ, Moraes MH, Constantino L, Reginatto FH, Steindel M, Pinheiro US, Simões CMO, Pérez CD, Schenkel EP. Biological activities of marine invertebrates extracts from the northeast brazilian coast. BRAZ J BIOL 2020; 80:393-404. [PMID: 31389485 DOI: 10.1590/1519-6984.213678] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 11/23/2018] [Indexed: 11/22/2022] Open
Abstract
This paper reports the in vitro antiproliferative effects, antiprotozoal, anti-herpes and antimicrobial activities of 32 organic extracts of 14 marine sponges and 14 corals collected in northeast Brazilian coast. The ethanolic extracts of the sponges Amphimedon compressa and Tedania ignis, and the acetone extract of Dysidea sp. showed relevant results concerning the antiproliferative effects against A549, HCT-8, and PC-3 cell lines by sulforhodamine B assay, but also low specificity. Concerning the antiprotozoal screening, the ethanolic extract of Amphimedon compressa and the acetone and ethanolic extracts of Dysidea sp. were the most active against Leishmania amazonensis and Trypanosoma cruzi expressing β-galactosidase in THP-1 cells. In the preliminary anti-HSV-1 (KOS strain) screening, the ethanolic extracts of the sponges Amphimedon compressa, Haliclona sp. and Chondrosia collectrix inhibited viral replication by more than 50%. The most promising anti-herpes results were observed for the ethanolic extract of Haliclona sp. showing high selective indices against HSV-1, KOS and 29R strains (SI> 50 and >79, respectively), and HSV-2, 333 strain (IS>108). The results of the antibacterial screening indicated that only the ethanolic extract of Amphimedon compressa exhibited a weak activity against Enterococcus faecalis, Pseudomonas aeruginosa and Escherichia coli by the disk diffusion method. In view of these results, the extracts of Amphimedon compressa, Tedania ignis and Dysidea sp. were selected for further studies aiming the isolation and identification of the bioactive compounds with antiproliferative and/or antiprotozoal activities. The relevant anti-herpes activity of the ethanolic extract of Haliclona sp. also deserves special attention, and will be further investigated.
Collapse
Affiliation(s)
- C Lhullier
- Laboratório de Produtos Naturais, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina - UFSC, Rua Eng. Agronômico Andrei Cristian Ferreira, s/n, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brasil
| | - M I G Moritz
- Laboratório de Produtos Naturais, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina - UFSC, Rua Eng. Agronômico Andrei Cristian Ferreira, s/n, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brasil
| | - E O Tabalipa
- Laboratório de Produtos Naturais, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina - UFSC, Rua Eng. Agronômico Andrei Cristian Ferreira, s/n, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brasil
| | - F N Sardá
- Laboratório de Produtos Naturais, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina - UFSC, Rua Eng. Agronômico Andrei Cristian Ferreira, s/n, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brasil
| | - N F Z Schneider
- Laboratório de Virologia Aplicada, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina - UFSC, Rua Eng. Agronômico Andrei Cristian Ferreira, s/n, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brasil
| | - M H Moraes
- Laboratório de Protozoologia, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina - UFSC, Rua Eng. Agronômico Andrei Cristian Ferreira, s/n, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brasil
| | - L Constantino
- Laboratório de Produtos Naturais, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina - UFSC, Rua Eng. Agronômico Andrei Cristian Ferreira, s/n, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brasil
| | - F H Reginatto
- Laboratório de Produtos Naturais, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina - UFSC, Rua Eng. Agronômico Andrei Cristian Ferreira, s/n, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brasil
| | - M Steindel
- Laboratório de Protozoologia, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina - UFSC, Rua Eng. Agronômico Andrei Cristian Ferreira, s/n, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brasil
| | - U S Pinheiro
- Departamento de Zoologia, Centro de Ciências Biológicas, Universidade Federal de Pernambuco - UFPE, Av. Prof. Moraes Rego, 1235, Cidade Universitária, CEP 50670-901, Recife, PE, Brasil
| | - C M O Simões
- Laboratório de Virologia Aplicada, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina - UFSC, Rua Eng. Agronômico Andrei Cristian Ferreira, s/n, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brasil
| | - C D Pérez
- Centro Acadêmico de Vitória, Universidade Federal de Pernambuco - UFPE, Rua Alto do Reservatório, s/n, Bela Vista, CEP 55608-680, Vitória de Santo Antão, PE, Brasil
| | - E P Schenkel
- Laboratório de Produtos Naturais, Departamento de Ciências Farmacêuticas, Universidade Federal de Santa Catarina - UFSC, Rua Eng. Agronômico Andrei Cristian Ferreira, s/n, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brasil
| |
Collapse
|
16
|
Karan D, Dubey S, Pirisi L, Nagel A, Pina I, Choo YM, Hamann MT. The Marine Natural Product Manzamine A Inhibits Cervical Cancer by Targeting the SIX1 Protein. JOURNAL OF NATURAL PRODUCTS 2020; 83:286-295. [PMID: 32022559 PMCID: PMC7161578 DOI: 10.1021/acs.jnatprod.9b00577] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Indexed: 06/10/2023]
Abstract
Natural products remain an important source of drug leads covering unique chemical space and providing significant therapeutic value for the control of cancer and infectious diseases resistant to current drugs. Here, we determined the antiproliferative activity of a natural product manzamine A (1) from an Indo-Pacific sponge following various in vitro cellular assays targeting cervical cancer (C33A, HeLa, SiHa, and CaSki). Our data demonstrated the antiproliferative effects of 1 at relatively low and non-cytotoxic concentrations (up to 4 μM). Mechanistic investigations confirmed that 1 blocked cell cycle progression in SiHa and CaSki cells at G1/S phase and regulated cell cycle-related genes, including restoration of p21 and p53 expression. In apoptotic assays, HeLa cells showed the highest sensitivity to 1 as compared to other cell types (C33A, SiHa, and CaSki). Interestingly, 1 decreased the levels of the oncoprotein SIX1, which is associated with oncogenesis in cervical cancer. To further investigate the structure-activity relationship among manzamine A (1) class with potential antiproliferative activity, molecular networking facilitated the efficient identification, dereplication, and assignment of structures from the manzamine class and revealed the significant potential in the design of optimized molecules for the treatment of cervical cancer. These data suggest that this sponge-derived natural product class warrants further attention regarding the design and development of novel manzamine analogues, which may be efficacious for preventive and therapeutic treatment of cancer. Additionally, this study reveals the significance of protecting fragile marine ecosystems from climate change-induced loss of species diversity.
Collapse
Affiliation(s)
- Dev Karan
- Department
of Pathology, MCW Cancer Center and Prostate Cancer Center of Excellence, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, Wisconsin, United States
| | - Seema Dubey
- Department
of Pathology, MCW Cancer Center and Prostate Cancer Center of Excellence, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, Wisconsin, United States
| | - Lucia Pirisi
- Department
of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina, United States
| | - Alexis Nagel
- Department
of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, South Carolina, United States
| | - Ivett Pina
- Department
of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, South Carolina, United States
| | - Yeun-Mun Choo
- Department
of Chemistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Mark T Hamann
- Department
of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, South Carolina, United States
| |
Collapse
|
17
|
|
18
|
Ercolano G, De Cicco P, Ianaro A. New Drugs from the Sea: Pro-Apoptotic Activity of Sponges and Algae Derived Compounds. Mar Drugs 2019; 17:E31. [PMID: 30621025 PMCID: PMC6356258 DOI: 10.3390/md17010031] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 12/21/2018] [Accepted: 12/28/2018] [Indexed: 12/12/2022] Open
Abstract
Natural compounds derived from marine organisms exhibit a wide variety of biological activities. Over the last decades, a great interest has been focused on the anti-tumour role of sponges and algae that constitute the major source of these bioactive metabolites. A substantial number of chemically different structures from different species have demonstrated inhibition of tumour growth and progression by inducing apoptosis in several types of human cancer. The molecular mechanisms by which marine natural products activate apoptosis mainly include (1) a dysregulation of the mitochondrial pathway; (2) the activation of caspases; and/or (3) increase of death signals through transmembrane death receptors. This great variety of mechanisms of action may help to overcome the multitude of resistances exhibited by different tumour specimens. Therefore, products from marine organisms and their synthetic derivates might represent promising sources for new anticancer drugs, both as single agents or as co-adjuvants with other chemotherapeutics. This review will focus on some selected bioactive molecules from sponges and algae with pro-apoptotic potential in tumour cells.
Collapse
Affiliation(s)
- Giuseppe Ercolano
- Department of Pharmacy, School of Medicine, University of Naples Federico II, 80131 Naples, Italy.
| | - Paola De Cicco
- Department of Pharmacy, School of Medicine, University of Naples Federico II, 80131 Naples, Italy.
| | - Angela Ianaro
- Department of Pharmacy, School of Medicine, University of Naples Federico II, 80131 Naples, Italy.
| |
Collapse
|
19
|
Shady NH, Fouad MA, Salah Kamel M, Schirmeister T, Abdelmohsen UR. Natural Product Repertoire of the Genus Amphimedon. Mar Drugs 2018; 17:md17010019. [PMID: 30598005 PMCID: PMC6357078 DOI: 10.3390/md17010019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 12/20/2018] [Accepted: 12/24/2018] [Indexed: 01/23/2023] Open
Abstract
Marine sponges are a very attractive and rich source in the production of novel bioactive compounds. The sponges exhibit a wide range of pharmacological activities. The genus Amphimedon consists of various species, such as viridis, compressa, complanata, and terpenensis, along with a handful of undescribed species. The Amphimedon genus is a rich source of secondary metabolites containing diverse chemical classes, including alkaloids, ceramides, cerebrososides, and terpenes, with various valuable biological activities. This review covers the literature from January 1983 until January 2018 and provides a complete survey of all the compounds isolated from the genus Amphimedon and the associated microbiota, along with their corresponding biological activities, whenever applicable.
Collapse
Affiliation(s)
- Nourhan Hisham Shady
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, Universities Zone, P.O. Box 61111 New Minia City, 61519 Minia, Egypt.
| | - Mostafa A Fouad
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, 61519 Minia, Egypt.
| | - Mohamed Salah Kamel
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, Universities Zone, P.O. Box 61111 New Minia City, 61519 Minia, Egypt.
| | - Tanja Schirmeister
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg University, Staudingerweg 5, 55128 Mainz, Germany.
| | | |
Collapse
|
20
|
Palem JR, Mudit M, Hsia SCV, Sayed KAE. Discovery and preliminary structure-activity relationship of the marine natural product manzamines as herpes simplex virus type-1 inhibitors. ACTA ACUST UNITED AC 2017; 72:49-54. [PMID: 27447204 DOI: 10.1515/znc-2016-0080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 06/24/2016] [Indexed: 11/15/2022]
Abstract
Herpes simplex virus type-1 (HSV-1) is a member of alpha-herpesviridae family and is known to cause contagious human infections. The marine habitat is a rich source of structurally unique bioactive secondary metabolites. A small library of marine natural product classes 1-10 has been screened to discover a new hit entity active against HSV-1. Manzamine A showed potent activity against HSV-1 via targeting the viral gene ICP0. Manzamine A is a β-carboline alkaloid isolated from the Indo-Pacific sponge Acanthostrongylophora species. Currently, acyclovir is the drug of choice for HSV-1 infections. Compared with 50 µM acyclovir, manzamine A at 1 µM concentration produced potent repressive effects on viral replication and release of infectious viruses in SIRC cells in recent studies. The potent anti-HSV-1 activity of manzamine A prompted a preliminary structure-activity relationship study by testing targeted manzamines. These included 8-hydroxymanzamine A (11), to test the effect of the C-8 hydroxy substitution at the β-carboline moiety; manzamine E (12), to assess the importance of substitution at the azacyclooctane ring; and ircinal A (13), to determine whether the β-carboline ring is required for the activity. Manzamine A was chemically transformed to its salt forms, manzamine A monohydrochloride (14) and manzamine A monotartrate (15), to test whether improving water solubility and hydrophilicity will positively affect the activity. Compounds were tested for activity against HSV-1 using fluorescent microscopy and plaque assay. The results showed the reduced anti-HSV-1 activity of 11, suggesting that C-8 hydroxy substitution might adversely affect the activity. Similarly, manzamines 12 and 13 showed no activity against HSV-1, indicating the preference of the unsubstituted azacylcooctane and β-carboline rings to the activity. Anti-HSV-1 activity was significantly improved for the manzamine A salts 14 and 15, suggesting that improving the overall water solubility as salt forms can significantly enhance the activity. Manzamines have significant potential for future development as anti-HSV-1 entity.
Collapse
Affiliation(s)
- Jayavardhana R Palem
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201, USA
| | - Mudit Mudit
- Department of Pharmaceutical, Social and Administrative Sciences, D'Youville College School of Pharmacy, Buffalo, NY 14201, USA
| | - Shao-Chung V Hsia
- Department of Pharmaceutical Sciences, University of Maryland Eastern Shore School of Pharmacy, Princess Anne, MD 21853, USA
| | - Khalid A El Sayed
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201, USA, Tel.: +1-318-342-1725, Fax: +1-318-342-1737
| |
Collapse
|
21
|
Marine Sponge Natural Products with Anticancer Potential: An Updated Review. Mar Drugs 2017; 15:md15100310. [PMID: 29027954 PMCID: PMC5666418 DOI: 10.3390/md15100310] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 09/28/2017] [Accepted: 10/09/2017] [Indexed: 12/11/2022] Open
Abstract
Despite the huge investment into research and the significant effort and advances made in the search for new anticancer drugs in recent decades, cancer cure and treatment continue to be a formidable challenge. Many sources, including plants, animals, and minerals, have been explored in the oncological field because of the possibility of identifying novel molecular therapeutics. Marine sponges are a prolific source of secondary metabolites, a number of which showed intriguing tumor chemopreventive and chemotherapeutic properties. Recently, Food and Drug Administration-approved drugs derived from marine sponges have been shown to reduce metastatic breast cancer, malignant lymphoma, and Hodgkin's disease. The chemopreventive and potential anticancer activity of marine sponge-derived compounds could be explained by multiple cellular and molecular mechanisms, including DNA protection, cell-cycle modulation, apoptosis, and anti-inflammatory activities as well as their ability to chemosensitize cancer cells to traditional antiblastic chemotherapy. The present article aims to depict the multiple mechanisms involved in the chemopreventive and therapeutic effects of marine sponges and critically explore the limitations and challenges associated with the development of marine sponge-based anticancer strategy.
Collapse
|
22
|
Lyakhova EG, Kolesnikova SA, Kalinovsky AI, Berdyshev DV, Pislyagin EA, Kuzmich AS, Popov RS, Dmitrenok PS, Makarieva TN, Stonik VA. Lissodendoric Acids A and B, Manzamine-Related Alkaloids from the Far Eastern Sponge Lissodendoryx florida. Org Lett 2017; 19:5320-5323. [PMID: 28933163 DOI: 10.1021/acs.orglett.7b02608] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The first representatives of a new group of manzamine-related alkaloids with a previously unknown skeletal systems, namely, lissodendoric acids A (1) and B (2), were isolated from the sponge Lissodendoryx florida collected from the Sea of Okhotsk. The structures and absolute configurations have been elucidated by extensive spectroscopic analysis together with chemical transformations and quantum-chemical modeling. The lissodendoric acids show a potent capability to decrease the production of reactive oxygen species in neuroblastoma Neuro 2a and somewhat increase the survival of these cells upon treatment with 6-hydroxydopamine (an in vitro antiparkinson biotest).
Collapse
Affiliation(s)
- Ekaterina G Lyakhova
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, The Far East Branch of the Russian Academy of Sciences , Prospect 100-let Vladivostoku 159, Vladivostok-22, Russia
| | - Sophia A Kolesnikova
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, The Far East Branch of the Russian Academy of Sciences , Prospect 100-let Vladivostoku 159, Vladivostok-22, Russia
| | - Anatoly I Kalinovsky
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, The Far East Branch of the Russian Academy of Sciences , Prospect 100-let Vladivostoku 159, Vladivostok-22, Russia
| | - Dmitrii V Berdyshev
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, The Far East Branch of the Russian Academy of Sciences , Prospect 100-let Vladivostoku 159, Vladivostok-22, Russia
| | - Evgeny A Pislyagin
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, The Far East Branch of the Russian Academy of Sciences , Prospect 100-let Vladivostoku 159, Vladivostok-22, Russia
| | - Aleksandra S Kuzmich
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, The Far East Branch of the Russian Academy of Sciences , Prospect 100-let Vladivostoku 159, Vladivostok-22, Russia
| | - Roman S Popov
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, The Far East Branch of the Russian Academy of Sciences , Prospect 100-let Vladivostoku 159, Vladivostok-22, Russia
| | - Pavel S Dmitrenok
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, The Far East Branch of the Russian Academy of Sciences , Prospect 100-let Vladivostoku 159, Vladivostok-22, Russia
| | - Tatyana N Makarieva
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, The Far East Branch of the Russian Academy of Sciences , Prospect 100-let Vladivostoku 159, Vladivostok-22, Russia
| | - Valentin A Stonik
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, The Far East Branch of the Russian Academy of Sciences , Prospect 100-let Vladivostoku 159, Vladivostok-22, Russia.,Far Eastern Federal University , Sukhanova Street 8, Vladivostok-91, Russia
| |
Collapse
|
23
|
Kim CK, Riswanto R, Won TH, Kim H, Elya B, Sim CJ, Oh DC, Oh KB, Shin J. Manzamine Alkaloids from an Acanthostrongylophora sp. Sponge. JOURNAL OF NATURAL PRODUCTS 2017; 80:1575-1583. [PMID: 28452477 DOI: 10.1021/acs.jnatprod.7b00121] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Five new manzamine alkaloids (1-5) and new salt forms of two known manzamines (6 and 7), along with seven known compounds (8-14) of the same structural class, were isolated from an Indonesian Acanthostrongylophora sp. sponge. On the basis of the results of combined spectroscopic analyses, the structure of kepulauamine A (1) was determined to possess an unprecedented pyrrolizine moiety, while others were functional group variants of known manzamines. These compounds exhibited weak cytotoxicity, moderate antibacterial activity, and mild inhibition against the enzyme isocitrate lyase.
Collapse
Affiliation(s)
- Chang-Kwon Kim
- Natural Products Research Institute, College of Pharmacy, Seoul National University , San 56-1, Sillim, Gwanak, Seoul 151-742, Korea
| | - Riswanto Riswanto
- Natural Products Research Institute, College of Pharmacy, Seoul National University , San 56-1, Sillim, Gwanak, Seoul 151-742, Korea
| | - Tae Hyung Won
- Natural Products Research Institute, College of Pharmacy, Seoul National University , San 56-1, Sillim, Gwanak, Seoul 151-742, Korea
| | - Heegyu Kim
- Department of Agricultural Biotechnology, College of Agriculture and Life Science, Seoul National University , San 56-1, Sillim, Gwanak, Seoul 151-921, Korea
| | - Berna Elya
- Faculty of Pharmacy, Universitas Indonesia , Kampus UI depok, West Java 16424, Indonesia
| | - Chung J Sim
- Department of Biological Science, College of Life Science and Nano Technology, Hannam University , 461-6 Jeonmin, Yuseong, Daejeon 305-811, Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University , San 56-1, Sillim, Gwanak, Seoul 151-742, Korea
| | - Ki-Bong Oh
- Department of Agricultural Biotechnology, College of Agriculture and Life Science, Seoul National University , San 56-1, Sillim, Gwanak, Seoul 151-921, Korea
| | - Jongheon Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University , San 56-1, Sillim, Gwanak, Seoul 151-742, Korea
| |
Collapse
|
24
|
Indraningrat AAG, Smidt H, Sipkema D. Bioprospecting Sponge-Associated Microbes for Antimicrobial Compounds. Mar Drugs 2016; 14:E87. [PMID: 27144573 PMCID: PMC4882561 DOI: 10.3390/md14050087] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 04/15/2016] [Accepted: 04/26/2016] [Indexed: 12/17/2022] Open
Abstract
Sponges are the most prolific marine organisms with respect to their arsenal of bioactive compounds including antimicrobials. However, the majority of these substances are probably not produced by the sponge itself, but rather by bacteria or fungi that are associated with their host. This review for the first time provides a comprehensive overview of antimicrobial compounds that are known to be produced by sponge-associated microbes. We discuss the current state-of-the-art by grouping the bioactive compounds produced by sponge-associated microorganisms in four categories: antiviral, antibacterial, antifungal and antiprotozoal compounds. Based on in vitro activity tests, identified targets of potent antimicrobial substances derived from sponge-associated microbes include: human immunodeficiency virus 1 (HIV-1) (2-undecyl-4-quinolone, sorbicillactone A and chartarutine B); influenza A (H1N1) virus (truncateol M); nosocomial Gram positive bacteria (thiopeptide YM-266183, YM-266184, mayamycin and kocurin); Escherichia coli (sydonic acid), Chlamydia trachomatis (naphthacene glycoside SF2446A2); Plasmodium spp. (manzamine A and quinolone 1); Leishmania donovani (manzamine A and valinomycin); Trypanosoma brucei (valinomycin and staurosporine); Candida albicans and dermatophytic fungi (saadamycin, 5,7-dimethoxy-4-p-methoxylphenylcoumarin and YM-202204). Thirty-five bacterial and 12 fungal genera associated with sponges that produce antimicrobials were identified, with Streptomyces, Pseudovibrio, Bacillus, Aspergillus and Penicillium as the prominent producers of antimicrobial compounds. Furthemore culture-independent approaches to more comprehensively exploit the genetic richness of antimicrobial compound-producing pathways from sponge-associated bacteria are addressed.
Collapse
Affiliation(s)
- Anak Agung Gede Indraningrat
- Laboratory of Microbiology, Wageningen University, Dreijenplein 10, Wageningen 6703 HB, The Netherlands.
- Department of Biology, Faculty of Mathematics and Science Education, Institut Keguruan dan Ilmu Pendidikan Persatuan Guru Republik Indonesia (IKIP PGRI) Bali, Jl. Seroja Tonja, Denpasar 80238, Indonesia.
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University, Dreijenplein 10, Wageningen 6703 HB, The Netherlands.
| | - Detmer Sipkema
- Laboratory of Microbiology, Wageningen University, Dreijenplein 10, Wageningen 6703 HB, The Netherlands.
| |
Collapse
|
25
|
Touchard A, Aili SR, Fox EGP, Escoubas P, Orivel J, Nicholson GM, Dejean A. The Biochemical Toxin Arsenal from Ant Venoms. Toxins (Basel) 2016; 8:E30. [PMID: 26805882 PMCID: PMC4728552 DOI: 10.3390/toxins8010030] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 01/07/2016] [Accepted: 01/08/2016] [Indexed: 12/17/2022] Open
Abstract
Ants (Formicidae) represent a taxonomically diverse group of hymenopterans with over 13,000 extant species, the majority of which inject or spray secretions from a venom gland. The evolutionary success of ants is mostly due to their unique eusociality that has permitted them to develop complex collaborative strategies, partly involving their venom secretions, to defend their nest against predators, microbial pathogens, ant competitors, and to hunt prey. Activities of ant venom include paralytic, cytolytic, haemolytic, allergenic, pro-inflammatory, insecticidal, antimicrobial, and pain-producing pharmacologic activities, while non-toxic functions include roles in chemical communication involving trail and sex pheromones, deterrents, and aggregators. While these diverse activities in ant venoms have until now been largely understudied due to the small venom yield from ants, modern analytical and venomic techniques are beginning to reveal the diversity of toxin structure and function. As such, ant venoms are distinct from other venomous animals, not only rich in linear, dimeric and disulfide-bonded peptides and bioactive proteins, but also other volatile and non-volatile compounds such as alkaloids and hydrocarbons. The present review details the unique structures and pharmacologies of known ant venom proteinaceous and alkaloidal toxins and their potential as a source of novel bioinsecticides and therapeutic agents.
Collapse
Affiliation(s)
- Axel Touchard
- CNRS, UMR Écologie des Forêts de Guyane (AgroParisTech, CIRAD, CNRS, INRA, Université de Guyane, Université des Antilles), Campus Agronomique, BP 316, Kourou Cedex 97379, France.
- BTSB (Biochimie et Toxicologie des Substances Bioactives) Université de Champollion, Place de Verdun, Albi 81012, France.
| | - Samira R Aili
- Neurotoxin Research Group, School of Medical & Molecular Biosciences, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia.
| | | | - Pierre Escoubas
- VenomeTech, 473 Route des Dolines-Villa 3, Valbonne 06560, France.
| | - Jérôme Orivel
- CNRS, UMR Écologie des Forêts de Guyane (AgroParisTech, CIRAD, CNRS, INRA, Université de Guyane, Université des Antilles), Campus Agronomique, BP 316, Kourou Cedex 97379, France.
| | - Graham M Nicholson
- Neurotoxin Research Group, School of Medical & Molecular Biosciences, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia.
| | - Alain Dejean
- CNRS, UMR Écologie des Forêts de Guyane (AgroParisTech, CIRAD, CNRS, INRA, Université de Guyane, Université des Antilles), Campus Agronomique, BP 316, Kourou Cedex 97379, France.
- Laboratoire Écologie Fonctionnelle et Environnement, 118 Route de Narbonne, Toulouse 31062, France.
| |
Collapse
|
26
|
AlTarabeen M, Daletos G, Ebrahim W, Müller WEG, Hartmann R, Lin W, Proksch P. Ircinal E, a New Manzamine Derivative from the Indonesian Marine Sponge Acanthostrongylophora ingens. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501001136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Chemical investigation of the MeOH extract of the sponge Acanthostrongylophora ingens afforded the new manzamine derivative ircinal E (1), in addition to six known metabolites (2–7). The structure of the new compound was unequivocally elucidated using one- and two-dimensional NMR spectroscopy, as well as high-resolution mass spectrometry. Compounds 1–6 exhibited strong to moderate cytotoxicity against the murine lymphoma L5178Y cell line with IC50 values ranging from 2.8 to 21.7 μM.
Collapse
Affiliation(s)
- Mousa AlTarabeen
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University, Universitaetsstrasse 1, 40225 Duesseldorf, Germany
| | - Georgios Daletos
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University, Universitaetsstrasse 1, 40225 Duesseldorf, Germany
| | - Weaam Ebrahim
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University, Universitaetsstrasse 1, 40225 Duesseldorf, Germany
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Werner E. G. Müller
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg-University Mainz. Duesbergweg 6, 55128 Mainz, Germany
| | - Rudolf Hartmann
- Institute of Complex Systems: Strukturbiochemie, Forschungszentrum Juelich, Wilhelm-Johnen-Straße, 52428 Juelich, Germany
| | - Wenhan Lin
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Health Science Center, 100191 Beijing, People's Republic of China
| | - Peter Proksch
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University, Universitaetsstrasse 1, 40225 Duesseldorf, Germany
| |
Collapse
|
27
|
Natural alkaloids: basic aspects, biological roles, and future perspectives. Chin J Nat Med 2015; 12:401-6. [PMID: 24969519 DOI: 10.1016/s1875-5364(14)60063-7] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Indexed: 01/08/2023]
Abstract
Natural products have gained popularity worldwide for promoting healthcare, as well as disease prevention. Alkaloids are important chemical compounds that serve as a rich reservoir for drug discovery. Several alkaloids isolated from natural herbs exhibit antiproliferation, antibacterial, antiviral, insecticidal, and antimetastatic effects on various types of cancers both in vitro and in vivo. This paper focuses on the naturally-derived alkaloids such as berberine, matrine, piperine, fritillarine, and rhynchophylline, etc., and summarizes the action mechanisms of these compounds. Based on the information in the literature that is summarized in this paper, the use of alkaloids as drugs is very promising, but more research and clinical trials are necessary before final recommendations on specific alkaloids can be made. Following this, it is hoped that as a result of this review, there will be a greater awareness of the excellent promise that natural alkaloids show for use in the therapy of diseases.
Collapse
|
28
|
Waters AL, Peraud O, Kasanah N, Sims JW, Kothalawala N, Anderson MA, Abbas SH, Rao KV, Jupally VR, Kelly M, Dass A, Hill RT, Hamann MT. An analysis of the sponge Acanthostrongylophora igens' microbiome yields an actinomycete that produces the natural product manzamine A. FRONTIERS IN MARINE SCIENCE 2014; 1:54. [PMID: 27785452 PMCID: PMC5076551 DOI: 10.3389/fmars.2014.00054] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Sponges have generated significant interest as a source of bioactive and elaborate secondary metabolites that hold promise for the development of novel therapeutics for the control of an array of human diseases. However, research and development of marine natural products can often be hampered by the difficulty associated with obtaining a stable and sustainable production source. Herein we report the first successful characterization and utilization of the microbiome of a marine invertebrate to identify a sustainable production source for an important natural product scaffold. Through molecular-microbial community analysis, optimization of fermentation conditions and MALDI-MS imaging, we provide the first report of a sponge-associated bacterium (Micromonospora sp.) that produces the manzamine class of antimalarials from the Indo-Pacific sponge Acanthostrongylophora ingens (Thiele, 1899) (Class Demospongiae, Order Haplosclerida, Family Petrosiidae). These findings suggest that a general strategy of analysis of the macroorganism's microbiome could significantly transform the field of natural products drug discovery by gaining access to not only novel drug leads, but the potential for sustainable production sources and biosynthetic genes at the same time.
Collapse
Affiliation(s)
- Amanda L. Waters
- Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Olivier Peraud
- Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Sciences, Baltimore, MD, USA
| | - Noer Kasanah
- Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
- Faculty of Pharmacy, Gadjah Mada University, Yogyakarta, Indonesia
| | - James W. Sims
- Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Nuwan Kothalawala
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, USA
| | - Matthew A. Anderson
- Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Sciences, Baltimore, MD, USA
| | - Samuel H. Abbas
- Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Karumanchi V. Rao
- Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Vijay R. Jupally
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, USA
| | - Michelle Kelly
- National Center for Coasts and Oceans, National Institute of Water and Atmospheric Research, Auckland, New Zealand
| | - Amala Dass
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, USA
| | - Russell T. Hill
- Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Sciences, Baltimore, MD, USA
| | - Mark T. Hamann
- Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, USA
- Division of Pharmacology, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
- National Center for Natural Product Research, University of Mississippi, University, MS, USA
| |
Collapse
|
29
|
Ashok P, Lathiya H, Murugesan S. Manzamine alkaloids as antileishmanial agents: A review. Eur J Med Chem 2014; 97:928-36. [PMID: 25023608 DOI: 10.1016/j.ejmech.2014.07.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 06/30/2014] [Accepted: 07/03/2014] [Indexed: 01/30/2023]
Abstract
Leishmaniasis is considered as one of the most Neglected Tropical Diseases (NTDs) in the world, caused by protozoan parasites of the genus Leishmania. Leishmaniasis control profoundly depends upon chemotherapy which includes pentavalent antimonials, paromomycin, pentamidine, amphotericin B and miltefosine. Miltefosine is the only oral drug used for the treatment of Visceral Leishmaniasis with high cure rate but decrease in susceptibility is observed in countries like India where it is extensively used. Hence, there is an urgent need to develop novel antileishmanial agents with good potency and better therapeutic profile. Manzamines are unique group of β-carboline alkaloids isolated from marine sponges and exhibited potent antileishmanial activity. In the present study, we described antileishmanial activity, cytotoxicity and structure activity relationship of natural manzamine alkaloids.
Collapse
Affiliation(s)
- Penta Ashok
- Department of Pharmacy, Birla Institute of Technology & Science, Pilani 333031, India.
| | - Hiren Lathiya
- Department of Pharmacy, Birla Institute of Technology & Science, Pilani 333031, India
| | | |
Collapse
|
30
|
Abstract
This review covers the isolation, chemical structure, biological activity, structure activity relationships including synthesis of chemical probes, and pharmacological characterization of neuroactive marine natural products; 302 references are cited.
Collapse
Affiliation(s)
- Ryuichi Sakai
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Japan.
| | | |
Collapse
|
31
|
Abdelmohsen UR, Bayer K, Hentschel U. Diversity, abundance and natural products of marine sponge-associated actinomycetes. Nat Prod Rep 2014; 31:381-99. [DOI: 10.1039/c3np70111e] [Citation(s) in RCA: 186] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review discusses the diversity, abundance and natural products repertoire of actinomycetes associated with marine sponges. Comprehensive phylogenetic analysis was carried out and qPCR data on actinomycete abundances in sponge ecosystems are presented.
Collapse
Affiliation(s)
- Usama Ramadan Abdelmohsen
- Department of Botany II
- Julius-von-Sachs-Institute for Biological Sciences
- University of Würzburg
- 97082 Würzburg, Germany
- Department of Pharmacognosy
| | - Kristina Bayer
- Department of Botany II
- Julius-von-Sachs-Institute for Biological Sciences
- University of Würzburg
- 97082 Würzburg, Germany
| | - Ute Hentschel
- Department of Botany II
- Julius-von-Sachs-Institute for Biological Sciences
- University of Würzburg
- 97082 Würzburg, Germany
| |
Collapse
|