1
|
Chakraborty S, Wei D, Tran M, Lang FF, Newman RA, Yang P. PBI-05204, a supercritical CO 2 extract of Nerium oleander, suppresses glioblastoma stem cells by inhibiting GRP78 and inducing programmed necroptotic cell death. Neoplasia 2024; 54:101008. [PMID: 38823209 PMCID: PMC11177059 DOI: 10.1016/j.neo.2024.101008] [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: 12/19/2023] [Revised: 05/10/2024] [Accepted: 05/15/2024] [Indexed: 06/03/2024]
Abstract
Successful treatment of glioblastoma multiforme (GBM), an aggressive form of primary brain neoplasm, mandates the need to develop new therapeutic strategies. In this study, we investigated the potential of PBI-05204 in targeting GBM stem cells (GSCs) and the underlying mechanisms. Treatment with PBI-05204 significantly reduced both the number and size of tumor spheres derived from patient-derived GSCs (GBM9, GSC28 and TS543), and suppressed the tumorigenesis of GBM9 xenografts. Moreover, PBI-05204 treatment led to a significant decrease in the expression of CD44 and NANOG, crucial markers of progenitor stem cells, in GBM9 and GSC28 GSCs. This treatment also down-regulated GRP78 expression in both GSC types. Knocking down GRP78 expression through GRP78 siRNA transfection in GBM9 and GSC28 GSCs also resulted in reduced spheroid size and CD44 expression. Combining PBI-05204 with GRP78 siRNA further decreased spheroid numbers compared to GRP78 siRNA treatment alone. PBI-05204 treatment led to increased expression of pRIP1K and pRIP3K, along with enhanced binding of RIPK1/RIPK3 in GBM9 and GSC28 cells, resembling the effects observed in GRP78-silenced GSCs, suggesting that PBI-05204 induced necroptosis in these cells. Furthermore, oleandrin, a principle active cardiac glycoside component of PBI-05204, showed the ability to inhibit the self-renewal capacity in GSCs. These findings highlight the potential of PBI-05204 as a promising candidate for the development of novel therapies that target GBM stem cells.
Collapse
Affiliation(s)
- Sharmistha Chakraborty
- Department of Palliative, Rehabilitation and Integrative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Daoyan Wei
- Department of Gastroenterology, Hepatology, and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Megan Tran
- Department of Palliative, Rehabilitation and Integrative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Frederick F Lang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Robert A Newman
- Phoenix Biotechnology, San Antonio, Texas 78217, United States
| | - Peiying Yang
- Department of Palliative, Rehabilitation and Integrative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States.
| |
Collapse
|
2
|
Papandreou A, Singh N, Gianfrancesco L, Budinger D, Barwick K, Agrotis A, Luft C, Shao Y, Lenaerts AS, Gregory A, Jeong SY, Hogarth P, Hayflick S, Barral S, Kriston-Vizi J, Gissen P, Kurian MA, Ketteler R. Cardiac glycosides restore autophagy flux in an iPSC-derived neuronal model of WDR45 deficiency. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.09.13.556416. [PMID: 37745522 PMCID: PMC10515824 DOI: 10.1101/2023.09.13.556416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Beta-Propeller Protein-Associated Neurodegeneration (BPAN) is one of the commonest forms of Neurodegeneration with Brain Iron Accumulation, caused by mutations in the gene encoding the autophagy-related protein, WDR45. The mechanisms linking autophagy, iron overload and neurodegeneration in BPAN are poorly understood and, as a result, there are currently no disease-modifying treatments for this progressive disorder. We have developed a patient-derived, induced pluripotent stem cell (iPSC)-based midbrain dopaminergic neuronal cell model of BPAN (3 patient, 2 age-matched controls and 2 isogenic control lines) which shows defective autophagy and aberrant gene expression in key neurodegenerative, neurodevelopmental and collagen pathways. A high content imaging-based medium-throughput blinded drug screen using the FDA-approved Prestwick library identified 5 cardiac glycosides that both corrected disease-related defective autophagosome formation and restored BPAN-specific gene expression profiles. Our findings have clear translational potential and emphasise the utility of iPSC-based modelling in elucidating disease pathophysiology and identifying targeted therapeutics for early-onset monogenic disorders.
Collapse
Affiliation(s)
- Apostolos Papandreou
- Developmental Neurosciences, Zayed Centre for Research into Rare Disease in Children, University College London Great Ormond Street Institute of Child Health, London, UK
- Laboratory for Molecular Cell Biology, University College London, London, UK
- Department of Neurology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Nivedita Singh
- Laboratory for Molecular Cell Biology, University College London, London, UK
| | - Lorita Gianfrancesco
- Developmental Neurosciences, Zayed Centre for Research into Rare Disease in Children, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Dimitri Budinger
- Developmental Neurosciences, Zayed Centre for Research into Rare Disease in Children, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Katy Barwick
- Developmental Neurosciences, Zayed Centre for Research into Rare Disease in Children, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Alexander Agrotis
- Laboratory for Molecular Cell Biology, University College London, London, UK
| | - Christin Luft
- Laboratory for Molecular Cell Biology, University College London, London, UK
| | - Ying Shao
- Wellcome-MRC Cambridge Stem Cell Institute, Cambridge, UK
| | | | | | | | | | | | - Serena Barral
- Developmental Neurosciences, Zayed Centre for Research into Rare Disease in Children, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Janos Kriston-Vizi
- Laboratory for Molecular Cell Biology, University College London, London, UK
| | - Paul Gissen
- Inborn Errors of Metabolism, Genetics & Genomic Medicine Programme, Great Ormond Street Institute of Child Health, University College London, London, UK
- Department of Metabolic Medicine, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Manju A Kurian
- Developmental Neurosciences, Zayed Centre for Research into Rare Disease in Children, University College London Great Ormond Street Institute of Child Health, London, UK
- Department of Neurology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- These authors contributed equally
| | - Robin Ketteler
- Laboratory for Molecular Cell Biology, University College London, London, UK
- Department of Human Medicine, Medical School Berlin, Berlin, Germany
- These authors contributed equally
| |
Collapse
|
3
|
Identification of a Cardiac Glycoside Exhibiting Favorable Brain Bioavailability and Potency for Reducing Levels of the Cellular Prion Protein. Int J Mol Sci 2022; 23:ijms232314823. [PMID: 36499150 PMCID: PMC9736291 DOI: 10.3390/ijms232314823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/19/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022] Open
Abstract
Several strands of investigation have established that a reduction in the levels of the cellular prion protein (PrPC) is a promising avenue for the treatment of prion diseases. We recently described an indirect approach for reducing PrPC levels that targets Na,K-ATPases (NKAs) with cardiac glycosides (CGs), causing cells to respond with the degradation of these pumps and nearby molecules, including PrPC. Because the therapeutic window of widely used CGs is narrow and their brain bioavailability is low, we set out to identify a CG with improved pharmacological properties for this indication. Starting with the CG known as oleandrin, we combined in silico modeling of CG binding poses within human NKA folds, CG structure-activity relationship (SAR) data, and predicted blood-brain barrier (BBB) penetrance scores to identify CG derivatives with improved characteristics. Focusing on C4'-dehydro-oleandrin as a chemically accessible shortlisted CG derivative, we show that it reaches four times higher levels in the brain than in the heart one day after subcutaneous administration, exhibits promising pharmacological properties, and suppresses steady-state PrPC levels by 84% in immortalized human cells that have been differentiated to acquire neural or astrocytic characteristics. Finally, we validate that the mechanism of action of this approach for reducing cell surface PrPC levels requires C4'-dehydro-oleandrin to engage with its cognate binding pocket within the NKA α subunit. The improved brain bioavailability of C4'-dehydro-oleandrin, combined with its relatively low toxicity, make this compound an attractive lead for brain CG indications and recommends its further exploration for the treatment of prion diseases.
Collapse
|
4
|
Xie D, Wang Q, Wu G. Research progress in inducing immunogenic cell death of tumor cells. Front Immunol 2022; 13:1017400. [PMID: 36466838 PMCID: PMC9712455 DOI: 10.3389/fimmu.2022.1017400] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 11/02/2022] [Indexed: 08/29/2023] Open
Abstract
Immunogenic cell death (ICD) is a regulated cell death (RCD) pathway. In response to physical and chemical signals, tumor cells activate specific signaling pathways that stimulate stress responses in the endoplasmic reticulum (ER) and expose damage-associated molecular patterns (DAMPs), which promote antitumor immune responses. As a result, the tumor microenvironment is altered, and many tumor cells are killed. The ICD response in tumor cells requires inducers. These inducers can be from different sources and contribute to the development of the ICD either indirectly or directly. The combination of ICD inducers with other tumor treatments further enhances the immune response in tumor cells, and more tumor cells are killed; however, it also produces side effects of varying severity. New induction methods based on nanotechnology improve the antitumor ability and significantly reduces side effects because they can target tumor cells precisely. In this review, we introduce the characteristics and mechanisms of ICD responses in tumor cells and the DAMPs associated with ICD responses, summarize the current methods of inducing ICD response in tumor cells in five distinct categories: chemical sources, physical sources, pathogenic sources, combination therapies, and innovative therapies. At the same time, we introduce the limitations of current ICD inducers and make a summary of the use of ICD responses in clinical trials. Finally, we provide an outlook on the future of ICD inducer development and provide some constructive suggestions.
Collapse
Affiliation(s)
| | - Qifei Wang
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Guangzhen Wu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| |
Collapse
|
5
|
Yeram PB, Kulkarni YA. Glycosides and Vascular Complications of Diabetes. Chem Biodivers 2022; 19:e202200067. [PMID: 36181446 DOI: 10.1002/cbdv.202200067] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 09/09/2022] [Indexed: 11/05/2022]
Abstract
Diabetes is linked with various microvascular and macrovascular complications. Nephropathy, neuropathy and retinopathy are important microvascular complications of diabetes. Different types of secondary metabolites including glycosides have been studied for their effects in diabetic complications. Various glycosides such as flavanoid glycosides and saponin glycosides are reported for their beneficial effects in diabetic nephropathy, neuropathy, retinopathy and cardiomyopathy by action on various pathways involved in the progression of these complications. Coumarin glycosides and cryanogenic glycosides have been studied for their effective role in diabetic nephropathy. Phenolic glycosides and anthraquinone glycosides also have beneficial role in diabetic neuropathy. The present review focuses on various classes of glycosides and their role in the prevention and treatment of vascular complications of diabetes.
Collapse
Affiliation(s)
- Pranali B Yeram
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, Vile Parle (W), Mumbai, 400 056, India
| | - Yogesh A Kulkarni
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, Vile Parle (W), Mumbai, 400 056, India
| |
Collapse
|
6
|
Hou Y, Shang C, Meng T, Lou W. Anticancer potential of cardiac glycosides and steroid-azole hybrids. Steroids 2021; 171:108852. [PMID: 33887267 DOI: 10.1016/j.steroids.2021.108852] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 04/03/2021] [Accepted: 04/12/2021] [Indexed: 01/03/2023]
Abstract
Steriods are well-known scaffolds that have a widespread occurrence in different compounds characterized by extensive biological properties including anticancer activity. Structural modifications on steroids always generate potential lead compounds with superior bioactivity, and creation of steroid hybrids by combining steroid with other anticancer pharmacophores in one molecule, which can exert the anticancer activity through different mechanisms, is one of the most promising strategies to enhance efficiency, overcome drug resistance and reduce side effects. Sugars and azoles, can act on diverse receptors, proteins and enzymes in cancer cells, are pharmacologically significant scaffolds in the development of novel anticancer agents. Therefore, steroid-sugar hybrids cardiac glycosides and steroid-azole hybrids are privileged scaffolds for the discovery of novel anticancer candidates. This review emphasized on the development, the structure-activity relationship and the mechanism of action of cardiac glycosides and steroid-azole hybrids with potential application for fighting against various cancers including drug-resistant forms to facilitate further rational design of novel drug candidates covering articles published between 2015 and 2020.
Collapse
Affiliation(s)
- Yani Hou
- School of Medicine, Xi'an Peihua University, Xi'an 710125, Shannxi, China
| | - Congshan Shang
- School of Medicine, Xi'an Peihua University, Xi'an 710125, Shannxi, China
| | - Tingting Meng
- School of Medicine, Xi'an Peihua University, Xi'an 710125, Shannxi, China
| | - Wei Lou
- Department of Respiratory, Zhuji Affiliated Hospital of Shaoxing University, Zhuji, China.
| |
Collapse
|
7
|
Ayogu JI, Odoh AS. Prospects and Therapeutic Applications of Cardiac Glycosides in Cancer Remediation. ACS COMBINATORIAL SCIENCE 2020; 22:543-553. [PMID: 32786321 DOI: 10.1021/acscombsci.0c00082] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Active metabolites from natural sources are the predominant molecular targets in numerous biological studies owing to their appropriate compatibility with biological systems and desirable selective toxicities. Thus, their potential for therapeutic development could span a broad scope of disease areas, including pathological and neurological dysfunctions. Cardiac glycosides are a unique class of specialized metabolites that have been extensively applied as therapeutic agents for the treatment of numerous heart conditions, and more recently, they have also been explored as probable antitumor agents. They are a class of naturally derived compounds that bind to and inhibit Na+/K+-ATPase. This study presents cardiac glycosides and their analogues with highlights on their applications, challenges, and prospects as lead compounds for cancer treatment.
Collapse
Affiliation(s)
- Jude I. Ayogu
- Department of Pure & Industrial Chemistry, University of Nigeria, Nsukka 410001, Nigeria
- Department of Chemistry, School of Physical and Chemical Science, University of Canterbury, Christchurch 8041, New Zealand
| | - Amaechi S. Odoh
- Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| |
Collapse
|
8
|
Colapietro A, Yang P, Rossetti A, Mancini A, Vitale F, Martellucci S, Conway TL, Chakraborty S, Marampon F, Mattei V, Gravina GL, Biordi AL, Wei D, Newman RA, Festuccia C. The Botanical Drug PBI-05204, a Supercritical CO 2 Extract of Nerium Oleander, Inhibits Growth of Human Glioblastoma, Reduces Akt/mTOR Activities, and Modulates GSC Cell-Renewal Properties. Front Pharmacol 2020; 11:552428. [PMID: 33013390 PMCID: PMC7516200 DOI: 10.3389/fphar.2020.552428] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 08/24/2020] [Indexed: 12/12/2022] Open
Abstract
Glioblastoma multiform (GBM) is the most common primary glial tumor resulting in very low patient survival despite current extensive therapeutic efforts. Emerging evidence suggests that more effective treatments are required to overcome tumor heterogeneity, drug resistance and a complex tumor-supporting microenvironment. PBI-05204 is a specifically formulated botanical drug consisting of a modified supercritical C02 extract of Nerium oleander that has undergone both phase I and phase II clinical trials in the United States for treatment of patients with a variety of advanced cancers. The present study was designed to investigate the antitumor efficacy of this botanical drug against glioblastoma using both in vitro and in vivo cancer models as well as exploring efficacy against glioblastoma stem cells. All three human GBM cell lines, U87MG, U251, and T98G, were inhibited by PBI-05204 in a concentration dependent manner that was characterized by induction of apoptosis as evidenced by increased ANNEXIN V staining and caspase activities. The expression of proteins associated with both Akt and mTOR pathway was suppressed by PBI-05240 in all treated human GBM cell lines. PBI-05204 significantly suppressed U87 spheroid formation and the expression of important stem cell markers such as SOX2, CD44, and CXCR4. Oral administration of PBI-05204 resulted in a dose-dependent inhibition of U87MG, U251, and T98G xenograft growth. Additionally, PBI-05204–treated mice carrying U87-Luc cells as an orthotropic model exhibited significantly delayed onset of tumor proliferation and significantly increased overall survival. Immunohistochemical staining of xenograft derived tumor sections revealed dose-dependent declines in expression of Ki67 and CD31 positive stained cells but increased TUNEL staining. PBI-05204 represents a novel therapeutic botanical drug approach for treatment of glioblastoma as demonstrated by significant responses with in vivo tumor models. Both in vitro cell culture and immunohistochemical studies of tumor tissue suggest drug induction of tumor cell apoptosis and inhibition of PI3k/mTOR pathways as well as cancer stemness. Given the fact that PBI-05204 has already been examined in phase I and II clinical trials for cancer patients, its efficacy when combined with standard of care chemotherapy and radiotherapy should be explored in future clinical trials of this difficult to treat brain cancer.
Collapse
Affiliation(s)
- Alessandro Colapietro
- Laboratory of Radiobiology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Peiying Yang
- Department of Palliative, Rehabilitation and Integrative Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Alessandra Rossetti
- Laboratory of Radiobiology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Andrea Mancini
- Laboratory of Radiobiology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Flora Vitale
- Laboratory of Neurophysiology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Stefano Martellucci
- Laboratory of Cellular Pathology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.,Laboratory of Experimental Medicine and Environmental Pathology, University Hub "Sabina Universitas", Rieti, Italy
| | - Tara L Conway
- Department of Palliative, Rehabilitation and Integrative Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Sharmistha Chakraborty
- Department of Palliative, Rehabilitation and Integrative Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Francesco Marampon
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Vincenzo Mattei
- Laboratory of Neurophysiology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Giovanni Luca Gravina
- Laboratory of Radiobiology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.,Division of Radiation Oncology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Assunta Leda Biordi
- Laboratory of Radiobiology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Daoyan Wei
- Department of Gastroenterology, Hepatology, and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | | | - Claudio Festuccia
- Laboratory of Radiobiology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| |
Collapse
|
9
|
Dey P. The pharmaco-toxicological conundrum of oleander: Potential role of gut microbiome. Biomed Pharmacother 2020; 129:110422. [DOI: 10.1016/j.biopha.2020.110422] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/08/2020] [Accepted: 06/14/2020] [Indexed: 02/08/2023] Open
|
10
|
Keiser J, Koch V, Deckers A, Cheung HTA, Jung N, Bräse S. Naturally Occurring Cardenolides Affecting Schistosoma mansoni. ACS Infect Dis 2020; 6:1922-1927. [PMID: 32364372 PMCID: PMC7359852 DOI: 10.1021/acsinfecdis.0c00175] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Schistosomiasis is a neglected tropical disease of considerable public health burden. We recently discovered a micromolar activity of several cardenolides against newly transformed schistosomula (NTS) of the parasitic flatworm Schistosoma mansoni in a small compound screen including different substance classes of both natural products as well as synthetic molecules. In further experiments, a focused library of naturally occurring and synthetic steroids was explored against NTS and adult S. mansoni, revealing seven cardenolides with comparable activities as known anthelminthics such as praziquantel. Of these, gomphoside monoacetate and uscharin showed suitable therapeutic indices. In a first in vivo study, at a dose of 10 mg/kg, only minor activity in mice harboring a chronic S. mansoni infection could be shown, which will be further investigated by structure-activity relationship studies as well as pharmacodynamic and pharmacokinetic approaches.
Collapse
Affiliation(s)
- Jennifer Keiser
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4051 Basel, Switzerland
- University of Basel, CH-4003 Basel, Switzerland
| | - Vanessa Koch
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Anke Deckers
- Institute of Biological and Chemical Systems, Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - H. T. Andrew Cheung
- Faculty of Pharmacy, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Nicole Jung
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
- Institute of Biological and Chemical Systems, Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
- Institute of Biological and Chemical Systems, Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| |
Collapse
|
11
|
Kanwal N, Rasul A, Hussain G, Anwar H, Shah MA, Sarfraz I, Riaz A, Batool R, Shahbaz M, Hussain A, Selamoglu Z. Oleandrin: A bioactive phytochemical and potential cancer killer via multiple cellular signaling pathways. Food Chem Toxicol 2020; 143:111570. [PMID: 32640345 DOI: 10.1016/j.fct.2020.111570] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/26/2020] [Accepted: 06/28/2020] [Indexed: 12/17/2022]
Abstract
Nerium oleander, a member of family Apocynaceae, is commonly known as Kaner in various countries of Asia and Mediterranean region. This plant has been renowned to possess significant therapeutic potential due to its various bioactive compounds which have been isolated from this plant e.g., cardiac glycosides, oleandrin, α-tocopherol, digitoxingenin, urosolic acid, quercetin, odorosides, and adigoside. Oleandrin, a saponin glycoside is one of the most potent and pharmacologically active phytochemicals of N. oleander. Its remarkable pharmacotherapeutic potential have been interpreted as anticancer, anti-inflammatory, anti-HIV, neuroprotective, antimicrobial and antioxidant. This particular bioactive entity is known to target the multiple deregulated signaling cascades of cancer such as NF-κB, MAPK, and PI3K/Akt. The main focus of the current study is to comprehend the action mechanisms of oleandrin against various pathological conditions. The current review is a comprehensive summary to facilitate the researchers to understand the pharmacological position of the oleandrin in the arena of drug discovery, representing this compound as a new drug candidate for further researches. Moreover, in vivo and in silico based studies are required to explore the mechanistic approaches regarding the pharmacokinetics and biosafety profiling of this compound to completely track its candidature status in natural drug discovery.
Collapse
Affiliation(s)
- Nazia Kanwal
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Azhar Rasul
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad, 38000, Pakistan.
| | - Ghulam Hussain
- Department of Physiology, Faculty of Life Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Haseeb Anwar
- Department of Physiology, Faculty of Life Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Muhammad Ajmal Shah
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, 38000, Pakistan.
| | - Iqra Sarfraz
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Ammara Riaz
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Rabia Batool
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Muhammad Shahbaz
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Arif Hussain
- Department of Zoology, Faculty of Life Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Zeliha Selamoglu
- Department of Medical Biology, Faculty of Medicine, Nigde Omer Halisdemir University, Nidge Campus, 51240, Turkey
| |
Collapse
|
12
|
Implications for glycosylated compounds and their anti-cancer effects. Int J Biol Macromol 2020; 163:1323-1332. [PMID: 32622770 DOI: 10.1016/j.ijbiomac.2020.06.281] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 06/20/2020] [Accepted: 06/29/2020] [Indexed: 02/07/2023]
Abstract
Glycosylated compounds are major secondary metabolites of plants, which have various therapeutic effects on human diseases, by acting as anti-cancer, antioxidant, and anti-inflammatory agents. Glycosylation increases stability, bioactivity, and solubility of compounds and improves their pharmacological properties. Two well-known examples of glycosylated compounds include cardiac and flavonoid, the anti-tumor activities of which have been emphasized by several studies. However, little is known about their role in the treatment or prevention of cancer. In this review, recent studies on anti-tumor properties of cardiac and flavonoid glycosides, and their mechanisms of action, have been investigated. More specifically, this review is aimed at focusing on the multifactorial properties of cardiac and flavonoid compounds as well as their correlation with signaling pathways in the treatment of cancer.
Collapse
|
13
|
Hutchison T, Yapindi L, Malu A, Newman RA, Sastry KJ, Harrod R. The Botanical Glycoside Oleandrin Inhibits Human T-cell Leukemia Virus Type-1 Infectivity and Env-Dependent Virological Synapse Formation. JOURNAL OF ANTIVIRALS & ANTIRETROVIRALS 2019; 11. [PMID: 31824586 PMCID: PMC6904119 DOI: 10.35248/1948-5964.19.11.184] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
At present, there are no antiretroviral drugs that inhibit incorporation of the envelope glycoprotein into newly-synthesized virus particles. The botanical glycoside, oleandrin, derived from extracts of Nerium oleander, has previously been shown to reduce the levels of the gp120 envelope glycoprotein on human immunodeficiency virus type-1 (HIV-1) particles and inhibit HIV-1 infectivity in vitro. We therefore tested whether oleandrin or an extract from N. oleander could also inhibit the infectivity of the human T-cell leukemia virus type-1 (HTLV-1): A related enveloped retrovirus and emerging tropical infectious agent. The treatment of HTLV-1+ lymphoma T-cells with either oleandrin or a N. oleander extract did not significantly inhibit viral replication or the release of p19Gag-containing particles into the culture supernatants. However, the collected virus particles from treated cells exhibited reduced infectivity on primary human peripheral blood mononuclear cells (huPBMCs). Unlike HIV-1, extracellular HTLV-1 particles are poorly infectious and viral transmission typically occurs via direct intercellular interactions across a virological synapse. We therefore investigated whether oleandrin or a N. oleander extract could inhibit virus transmission from a GFP-expressing HTLV-1+ lymphoma T-cell-line to huPBMCs in co-culture assays. These results demonstrated that both oleandrin and the crude phytoextract inhibited the formation of virological synapses and the transmission of HTLV-1 in vitro. Importantly, these findings suggest oleandrin may have broad antiviral activity against enveloped viruses by reducing the incorporation of the envelope glycoprotein into mature particles, a stage of the infection cycle not targeted by modern HAART.
Collapse
Affiliation(s)
- Tetiana Hutchison
- Laboratory of Molecular Virology, Department of Biological Sciences, The Dedman College Center for Drug Discovery, Design & Delivery, Southern Methodist University, Dallas, Texas, 75275-0376, USA
| | - Laçin Yapindi
- Laboratory of Molecular Virology, Department of Biological Sciences, The Dedman College Center for Drug Discovery, Design & Delivery, Southern Methodist University, Dallas, Texas, 75275-0376, USA
| | - Aditi Malu
- Laboratory of Molecular Virology, Department of Biological Sciences, The Dedman College Center for Drug Discovery, Design & Delivery, Southern Methodist University, Dallas, Texas, 75275-0376, USA
| | - Robert A Newman
- Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, 77054, USA
| | - K Jagannadha Sastry
- Departments of Immunology and Veterinary Sciences, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, 77054, USA
| | - Robert Harrod
- Laboratory of Molecular Virology, Department of Biological Sciences, The Dedman College Center for Drug Discovery, Design & Delivery, Southern Methodist University, Dallas, Texas, 75275-0376, USA
| |
Collapse
|
14
|
Baldo MA, Cunha AOS, Godoy LD, Liberato JL, Yoneda JS, Fornari-Baldo EC, Ciancaglini P, dos Santos WF, Arantes EC. Assessment of neuropharmacological potential of low molecular weight components extracted from Rhinella schneideri toad poison. J Venom Anim Toxins Incl Trop Dis 2019; 25:e148418. [PMID: 31131006 PMCID: PMC6483406 DOI: 10.1590/1678-9199-jvatitd-1484-18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 10/23/2018] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Studies on toad poison are relevant since they are considered a good source of toxins that act on different biological systems. Among the molecules found in the toad poison, it can be highlighted the cardiotonic heterosides, which have a known mechanism that inhibit Na+/K+-ATPase enzyme. However, these poisons have many other molecules that may have important biological actions. Therefore, this work evaluated the action of the low molecular weight components from Rhinella schneideri toad poison on Na+/K+-ATPase and their anticonvulsive and / or neurotoxic effects, in order to detect molecules with actions of biotechnological interest. METHODS Rhinella schneideri toad (male and female) poison was collected by pressuring their parotoid glands and immediately dried and stored at -20 °C. The poison was dialysed and the water containing the low molecular mass molecules (< 8 kDa) that permeate the dialysis membrane was collected, frozen and lyophilized, resulting in the sample used in the assays, named low molecular weight fraction (LMWF). Na+/K+ ATPase was isolated from rabbit kidneys and enzyme activity assays performed by the quantification of phosphate released due to enzyme activity in the presence of LMWF (1.0; 10; 50 and 100 µg/mL) from Rhinella schneideri poison. Evaluation of the L-Glutamate (L-Glu) excitatory amino acid uptake in brain-cortical synaptosomes of Wistar rats was performed using [3H]L-glutamate and different concentration of LMWF (10-5 to 10 µg/µL). Anticonvulsant assays were performed using pentylenetetrazole (PTZ) and N-methyl-D-aspartate (NMDA) to induce seizures in Wistar rats (n= 6), which were cannulated in the lateral ventricle and treated with different concentration of LMWF (0.25; 0.5; 1.0; 2.0; 3.0 and 4.0 µg/µL) 15 min prior to the injection of the seizure agent. RESULTS LMWF induced a concentration-dependent inhibition of Na+/K+-ATPase (IC50% = 107.5 μg/mL). The poison induces an increased uptake of the amino acid L-glutamate in brain-cortical synaptosomes of Wistar rats. This increase in the L-glutamate uptake was observed mainly at the lowest concentrations tested (10-5 to 10-2 µg/µL). In addition, this fraction showed a very relevant central neuroprotection on seizures induced by PTZ and NMDA. CONCLUSIONS LMWF from Rhinella schneideri poison has low molecular weight compounds, which were able to inhibit Na+/K+-ATPase activity, increase the L-glutamate uptake and reduced seizures induced by PTZ and NMDA. These results showed that LMWF is a rich source of components with biological functions of high medical and scientific interest.
Collapse
Affiliation(s)
- Mateus Amaral Baldo
- Department of Physics and Chemistry, Ribeirão Preto College of
Pharmaceutical Science, University of São Paulo, Ribeirão Preto, SP, Brazil
- Health and Science Institute, Paulista University, São Paulo, SP,
Brazil
| | - Alexandra Olimpio Siqueira Cunha
- Neurobiology and Venoms Laboratory, Department of Biology, Faculty
of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo,
Ribeirão Preto, SP, Brazil
| | - Lívea Dornela Godoy
- Neurobiology and Venoms Laboratory, Department of Biology, Faculty
of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo,
Ribeirão Preto, SP, Brazil
- Institute of Neurosciences & Behavior - INeC, Campus USP,
Ribeirão Preto, SP, Brazil
| | - José Luiz Liberato
- Neurobiology and Venoms Laboratory, Department of Biology, Faculty
of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo,
Ribeirão Preto, SP, Brazil
- Institute of Neurosciences & Behavior - INeC, Campus USP,
Ribeirão Preto, SP, Brazil
| | - Juliana Sakamoto Yoneda
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters
at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Elisa Correa Fornari-Baldo
- Department of Physics and Chemistry, Ribeirão Preto College of
Pharmaceutical Science, University of São Paulo, Ribeirão Preto, SP, Brazil
- Health and Science Institute, Paulista University, São Paulo, SP,
Brazil
| | - Pietro Ciancaglini
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters
at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Wagner Ferreira dos Santos
- Neurobiology and Venoms Laboratory, Department of Biology, Faculty
of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo,
Ribeirão Preto, SP, Brazil
- Institute of Neurosciences & Behavior - INeC, Campus USP,
Ribeirão Preto, SP, Brazil
| | - Eliane Candiani Arantes
- Department of Physics and Chemistry, Ribeirão Preto College of
Pharmaceutical Science, University of São Paulo, Ribeirão Preto, SP, Brazil
| |
Collapse
|
15
|
Altinoz MA, Ozpinar A, Ozpinar A, Perez JL, Elmaci İ. Methenamine's journey of 160 years: Repurposal of an old urinary antiseptic for treatment and hypoxic radiosensitization of cancers and glioblastoma. Clin Exp Pharmacol Physiol 2019; 46:407-412. [PMID: 30721527 DOI: 10.1111/1440-1681.13070] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/06/2018] [Accepted: 12/02/2018] [Indexed: 10/27/2022]
Abstract
Methenamine (hexamethylenetetramine, hexamine, urotropine) is a compound discovered in 1859, which is still currently being used as a urinary antiseptic. Methenamine is highly soluble in water and polar solvents, and its molecular constitution is similar to adamantane compounds with tetrahedral cage like structure. In acidic conditions, methenamine decomposes to formaldehyde and ammonia. Recently, methenamine has gained a renewal of interest due to antibiotic-resistant bacteria urinary tract infections; interestingly, bacteria cannot gain resistance to formaldehyde. In 1968, David and Burkitt reported remarkable regression of four Burkitt Lymphoma patients in eight subjects who were treated with septicemine (a solution containing 6.3 g of methenamine iodomethylate and 1 g of methenamine sodium benzoate in 100 cc distilled water). Unfortunately, these striking observations did not gain interest in the medical community; despite experimental models that showed that methenamine synergized with hyperthermia, radiation, and chemotherapy to block cancer growth. As the hypoxic core of tumours have an acidic pH, it would be plausible to expect that methenamine would selectively target dormant, non-proliferative, and treatment-resistant cancer clones in large tumours. Moreover, previous data suggests that methenamine can be safely used intravenously and for treatment of infections of the central nervous system. It may therefore be an effective adjuvant in treatment of systemic cancers and glioblastoma.
Collapse
Affiliation(s)
- Meric A Altinoz
- Department of Biochemistry, Acibadem University, Istanbul, Turkey
| | - Aysel Ozpinar
- Department of Biochemistry, Acibadem University, Istanbul, Turkey
| | - Alp Ozpinar
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jennifer L Perez
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - İlhan Elmaci
- Department of Neurosurgery, Acibadem University, Istanbul, Turkey
| |
Collapse
|