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Matsuo Y, Mimaki Y. Search for new steroidal glycosides with anti-cancer potential from natural resources. J Nat Med 2024; 78:807-827. [PMID: 39014276 PMCID: PMC11364615 DOI: 10.1007/s11418-024-01830-1] [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: 04/08/2024] [Accepted: 06/25/2024] [Indexed: 07/18/2024]
Abstract
Chemical investigations of higher plants, with particular attention paid to their steroidal glycosides, present a promising approach for generating anti-cancer agents from natural products. We conducted a systematic phytochemical investigation of nine higher plants-whole plants and rhizomes of Convallaria majalis, whole plants of Agave utahensis, roots of Adonis amurensis, seeds of Adonis aestivalis, bulbs of Bessera elegans, bulbs of Fritillaria meleagris, seeds of Digitalis purpurea, underground parts of Yucca glauca, and bulbs of Lilium pumilum-which led to the discovery of novel steroidal glycosides. The structures of these new constituents were determined based on spectroscopic data and chemical transformations. The identification of the monosaccharides including their absolute configurations was carried out by direct HPLC analysis of their hydrolysates using an optical rotation detector. Cytotoxicity of the isolated steroidal glycosides was evaluated against various tumor cells (A549, ACHN, HepG-2, HL-60, HSC-2, HSC-3, HSC-4, HSG, and SBC-3) and normal cells (Fa2 N-4, HK-2, and TIG-3 cells). Certain steroidal glycosides exhibit selective cytotoxicity and synergistic effects, making them potential lead compounds for use as anti-cancer agents. We document the isolation of 139 steroidal glycosides from higher plants and assessment their cytotoxic activities.
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Affiliation(s)
- Yukiko Matsuo
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1, Horinouchi, Hachioji, Tokyo, 192-0392, Japan.
| | - Yoshihiro Mimaki
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1, Horinouchi, Hachioji, Tokyo, 192-0392, Japan
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2
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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] [Grants] [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.
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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.
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Nguyen LD, Sengupta S, Cho K, Floru A, George RE, Krichevsky AM. Novel miRNA-inducing drugs enable differentiation of retinoic acid-resistant neuroblastoma cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.05.597584. [PMID: 38895399 PMCID: PMC11185630 DOI: 10.1101/2024.06.05.597584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Tumor cell heterogeneity in neuroblastoma, a pediatric cancer arising from neural crest-derived progenitor cells, poses a significant clinical challenge. In particular, unlike adrenergic (ADRN) neuroblastoma cells, mesenchymal (MES) cells are resistant to chemotherapy and retinoid therapy and thereby significantly contribute to relapses and treatment failures. Previous research suggested that overexpression or activation of miR-124, a neurogenic microRNA with tumor suppressor activity, can induce the differentiation of retinoic acid-resistant neuroblastoma cells. Leveraging our established screen for miRNA-modulatory small molecules, we validated PP121, a dual inhibitor of tyrosine and phosphoinositide kinases, as a robust inducer of miR-124. A combination of PP121 and BDNF-activating bufalin synergistically arrests proliferation, induces differentiation, and maintains the differentiated state of MES SK-N-AS cells for 8 weeks. RNA-seq and deconvolution analyses revealed a collapse of the ADRN core regulatory circuitry (CRC) and the emergence of novel CRCs associated with chromaffin cells and Schwann cell precursors. Using a similar protocol, we differentiated and maintained MES neuroblastoma GI-ME-N and SH-EP cell lines, as well as glioblastoma LN-229 and U-251 cell lines, for over 16 weeks. In conclusion, our novel protocol suggests a promising treatment for therapy-resistant cancers of the nervous system. Moreover, these long-lived, differentiated cells provide valuable models for studying mechanisms underlying differentiation, maturation, and senescence.
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Kanungo J, Sorkin BC, Krzykwa J, Mitchell CA, Embry M, Spencer P, Harry GJ, Cannon J, Liu F, McPherson CA, Gafner S, Westerink RHS. Screening tools to evaluate the neurotoxic potential of botanicals: building a strategy to assess safety. Expert Opin Drug Metab Toxicol 2024; 20:629-646. [PMID: 38984683 DOI: 10.1080/17425255.2024.2378895] [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: 04/18/2024] [Accepted: 07/08/2024] [Indexed: 07/11/2024]
Abstract
AREAS COVERED This paper outlines the selection of NAMs, including in vitro assays using primary rat cortical neurons, zebrafish embryos, and Caenorhabditis elegans. These assays aim to assess neurotoxic endpoints such as neuronal activity and behavioral responses. Microelectrode array recordings of rat cortical neurons provide insights into the impact of botanical extracts on neuronal function, while the zebrafish embryos and C. elegans assays evaluate neurobehavioral responses. The paper also provides an account of the selection of botanical case studies based on expert judgment and existing neuroactivity/toxicity information. The proposed battery of assays will be tested with these case studies to evaluate their utility for neurotoxicity screening. EXPERT OPINION The complexity of botanicals necessitates the use of multiple NAMs for effective neurotoxicity screening. This paper discusses the evaluation of methodologies to develop a robust framework for evaluating botanical safety, including complex neuronal models and key neurodevelopmental process assays. It aims to establish a comprehensive screening framework.
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Affiliation(s)
- Jyotshna Kanungo
- Division of Neurotoxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Barbara C Sorkin
- Office of Dietary Supplements, Division of Program Coordination, Planning, and Strategic Initiatives, U.S. National Institutes of Health, Bethesda, MD, USA
| | - Julie Krzykwa
- Health and Environmental Sciences Institute, Washington, DC, USA
| | | | - Michelle Embry
- Health and Environmental Sciences Institute, Washington, DC, USA
| | - Peter Spencer
- Department of Neurology, School of Medicine, Oregon Health & Science University, Portland, OR, USA
| | - G Jean Harry
- Mechanistic Toxicology Branch, Division of Translational Toxicology, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, Durham, NC, USA
| | - Jason Cannon
- Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, IN, USA
| | - Fang Liu
- Division of Neurotoxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Christopher A McPherson
- Mechanistic Toxicology Branch, Division of Translational Toxicology, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, Durham, NC, USA
| | | | - Remco H S Westerink
- Division of Toxicology, Institute for Risk Assessment Sciences (IRAS), Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
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Bouabdallah S, Al-Maktoum A, Amin A. Steroidal Saponins: Naturally Occurring Compounds as Inhibitors of the Hallmarks of Cancer. Cancers (Basel) 2023; 15:3900. [PMID: 37568716 PMCID: PMC10417465 DOI: 10.3390/cancers15153900] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Cancer is a global health burden responsible for an exponentially growing number of incidences and mortalities, regardless of the significant advances in its treatment. The identification of the hallmarks of cancer is a major milestone in understanding the mechanisms that drive cancer initiation, development, and progression. In the past, the hallmarks of cancer have been targeted to effectively treat various types of cancers. These conventional cancer drugs have shown significant therapeutic efficacy but continue to impose unfavorable side effects on patients. Naturally derived compounds are being tested in the search for alternative anti-cancer drugs. Steroidal saponins are a group of naturally occurring compounds that primarily exist as secondary metabolites in plant species. Recent studies have suggested that steroidal saponins possess significant anti-cancer capabilities. This review aims to summarize the recent findings on steroidal saponins as inhibitors of the hallmarks of cancer and covers key studies published between the years 2014 and 2024. It is reported that steroidal saponins effectively inhibit the hallmarks of cancer, but poor bioavailability and insufficient preclinical studies limit their utilization.
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Affiliation(s)
- Salwa Bouabdallah
- Theranostic Biomarkers, LR23ES02, Faculty of Medicine of Tunis, Université Tunis El Manar, Tunis 1006, Tunisia
| | - Amna Al-Maktoum
- Biology Department, College of Science, United Arab Emirates University, Al Ain 15551, United Arab Emirates;
| | - Amr Amin
- Biology Department, College of Science, United Arab Emirates University, Al Ain 15551, United Arab Emirates;
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Krichevsky A, Nguyen L, Wei Z, Silva M, Barberán-Soler S, Rabinovsky R, Muratore C, Stricker J, Hortman C, Young-Pearse T, Haggarty S. Small Molecule Regulators of microRNAs Identified by High-Throughput Screen Coupled with High-Throughput Sequencing. RESEARCH SQUARE 2023:rs.3.rs-2617979. [PMID: 36993255 PMCID: PMC10055534 DOI: 10.21203/rs.3.rs-2617979/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
MicroRNAs (miRNAs) regulate fundamental biological processes by silencing mRNA targets and are dysregulated in many diseases. Therefore, miRNA replacement or inhibition can be harnessed as potential therapeutics. However, existing strategies for miRNA modulation using oligonucleotides and gene therapies are challenging, especially for neurological diseases, and none have yet gained clinical approval. We explore a different approach by screening a biodiverse library of small molecule compounds for their ability to modulate hundreds of miRNAs in human induced pluripotent stem cell-derived neurons. We demonstrate the utility of the screen by identifying cardiac glycosides as potent inducers of miR-132, a key miRNA downregulated in Alzheimer's disease and other tauopathies. Coordinately, cardiac glycosides downregulate known miR-132 targets, including Tau, and protect rodent and human neurons against various toxic insults. More generally, our dataset of 1370 drug-like compounds and their effects on the miRNome provide a valuable resource for further miRNA-based drug discovery.
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Affiliation(s)
| | - Lien Nguyen
- Brigham and Women's Hospital and Harvard Medical School
| | - Zhiyun Wei
- Brigham and Women's Hospital and Harvard Medical School
| | - M Silva
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | | | - Rosalia Rabinovsky
- 1. Ann Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
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Sharma R, Singh S, Tewari N, Dey P. A toxic shrub turned therapeutic: The dichotomy of Nerium oleander bioactivities. Toxicon 2023; 224:107047. [PMID: 36706925 DOI: 10.1016/j.toxicon.2023.107047] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/20/2023] [Accepted: 01/24/2023] [Indexed: 01/26/2023]
Abstract
Nerium oleander L. is a medicinal plant, used for the treatment of cancers and hyperglycemia across the world, especially in Indian sub-continent, Turkey, Morocco, and China. Although clinical studies supporting its pharmacological effects remain critically underexplored, accidental and intentional consumption of any part of the plant causes fatal toxicity in animals and humans. While the polyphenolic fraction of oleander leaves has been attributed to its pre-clinical pharmacological activities, the presence of diverse cardiac glycosides (especially oleandrin) causes apoptosis to cancer cells in vitro and results in clinical signs of oleander poisoning. Thus, the dual pharmacological and toxicological role of oleander is a perplexing dichotomy in phytotherapy. The current investigative review, therefore, intended to analyze the intrinsic and extrinsic factors that likely contribute to this conundrum. Especially by focusing on gut microbial diversity, abundance, and metabolic functions, oleander-associated pharmacological and toxicological studies have been critically analyzed to define the dual effects of oleander. Electronic databases were extensively screened for relevant research articles (including pre-clinical and clinical) related to oleander bioactivities and toxicity. Taxonomic preference was given to the plant N. oleander L. and synonymous plants as per 'The World Flora Online' database (WCSP record #135196). Discussion on yellow oleander (Cascabela thevetia (L.) Lippold) has intentionally been avoided since it is a different plant. The review indicates that the gut microbiota likely plays a key role in differentially modulating the pharmacological and toxicological effects of oleander. Other factors identified influencing the oleander bioactivities include dose and mode of treatment, cardiac glycoside pharmacokinetics, host-endogenous glycosides, plant material processing and phytochemical extraction methods, plant genotypic variations, environmental effects on the phytochemical quality and quantity, gene expression variations, host dietary patterns and co-morbidity, etc. The arguments proposed are also relevant to other medicinal plants containing toxic cardiac glycosides.
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Affiliation(s)
- Rajat Sharma
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala, Punjab, India.
| | - Swati Singh
- Department of Zoology, University of North Bengal, Siliguri, West Bengal, India.
| | - Nisha Tewari
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala, Punjab, India.
| | - Priyankar Dey
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala, Punjab, India.
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Rashan LJ, Özenver N, Boulos JC, Dawood M, Roos WP, Franke K, Papasotiriou I, Wessjohann LA, Fiebig HH, Efferth T. Molecular Modes of Action of an Aqueous Nerium oleander Extract in Cancer Cells In Vitro and In Vivo. Molecules 2023; 28:molecules28041871. [PMID: 36838857 PMCID: PMC9960564 DOI: 10.3390/molecules28041871] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 02/18/2023] Open
Abstract
Cancer drug resistance remains a major obstacle in clinical oncology. As most anticancer drugs are of natural origin, we investigated the anticancer potential of a standardized cold-water leaf extract from Nerium oleander L., termed Breastin. The phytochemical characterization by nuclear magnetic resonance spectroscopy (NMR) and low- and high-resolution mass spectrometry revealed several monoglycosidic cardenolides as major constituents (adynerin, neritaloside, odoroside A, odoroside H, oleandrin, and vanderoside). Breastin inhibited the growth of 14 cell lines from hematopoietic tumors and 5 of 6 carcinomas. Remarkably, the cellular responsiveness of odoroside H and neritaloside was not correlated with all other classical drug resistance mechanisms, i.e., ATP-binding cassette transporters (ABCB1, ABCB5, ABCC1, ABCG2), oncogenes (EGFR, RAS), tumor suppressors (TP53, WT1), and others (GSTP1, HSP90, proliferation rate), in 59 tumor cell lines of the National Cancer Institute (NCI, USA), indicating that Breastin may indeed bypass drug resistance. COMPARE analyses with 153 anticancer agents in 74 tumor cell lines of the Oncotest panel revealed frequent correlations of Breastin with mitosis-inhibiting drugs. Using tubulin-GFP-transfected U2OS cells and confocal microscopy, it was found that the microtubule-disturbing effect of Breastin was comparable to that of the tubulin-depolymerizing drug paclitaxel. This result was verified by a tubulin polymerization assay in vitro and molecular docking in silico. Proteome profiling of 3171 proteins in the NCI panel revealed protein subsets whose expression significantly correlated with cellular responsiveness to odoroside H and neritaloside, indicating that protein expression profiles can be identified to predict the sensitivity or resistance of tumor cells to Breastin constituents. Breastin moderately inhibited breast cancer xenograft tumors in vivo. Remarkably, in contrast to what was observed with paclitaxel monotherapy, the combination of paclitaxel and Breastin prevented tumor relapse, indicating Breastin's potential for drug combination regimens.
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Affiliation(s)
- Luay J. Rashan
- Frankincense Biodiversity Unit, Research Center, Dhofar University, Salalah 211, Oman
- Correspondence: (L.J.R.); (T.E.); Tel.: +968-2323-7357 (L.J.R.); +49-6131-3925751 (T.E.)
| | - Nadire Özenver
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, 55128 Mainz, Germany
- Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University, Ankara 06100, Turkey
| | - Joelle C. Boulos
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, 55128 Mainz, Germany
| | - Mona Dawood
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, 55128 Mainz, Germany
- 4HF Biotec GmbH, 79108 Freiburg, Germany
- Department of Molecular Biology, Faculty of Medical Laboratory Sciences, Al-Neelain University, Khartoum 12702, Sudan
| | - Wynand P. Roos
- Institute of Toxicology, Medical Center of the University Mainz, Obere Zahlbacher Straße 67, 55131 Mainz, Germany
| | - Katrin Franke
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry (IPB), Weinberg 3, 06120 Halle, Germany
| | | | - Ludger A. Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry (IPB), Weinberg 3, 06120 Halle, Germany
| | | | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, 55128 Mainz, Germany
- Correspondence: (L.J.R.); (T.E.); Tel.: +968-2323-7357 (L.J.R.); +49-6131-3925751 (T.E.)
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Eroğlu Güneş C, Seçer Çelik F, Seçme M, Elmas L, Dodurga Y, Kurar E. Glycoside oleandrin downregulates toll-like receptor pathway genes and associated miRNAs in human melanoma cells. Gene X 2022; 843:146805. [PMID: 35964872 DOI: 10.1016/j.gene.2022.146805] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 07/29/2022] [Accepted: 08/06/2022] [Indexed: 12/01/2022] Open
Abstract
Melanoma accounts for the majority of skin cancer-related deaths. Nerium oleander is a plant known to be toxic and consumed due to the cardiac glycosides it contains. Oleandrin is a cardiac glycoside obtained from of N. oleander. Beside capable of inhibiting proliferation and metastasis of cancer cells, cardiac glycoside derivative compounds cause cardiovascular side effects. Because of cardiovascular toxicity of clinically used cardiac glycosides, it is necessary to investigate cardiac glycoside derivative compounds capable of inhibiting proliferation and metastasis of cancer cells. It is known that oleandrin has anticarcinogenic effects in other cancers. Previous studies have shown that toll-like receptors (TLRs) and their related microRNAs (miRNAs) are associated with cancer. Therefore, aim was to investigate the effect of oleandrin on genes and miRNAs associated with TLRs in A375 melanoma cells in this study. The effects of oleandrin on cell viability, cytokines, apoptosis were evaluated using XTT, ELISA and TUNEL analyses, respectively. The effect of oleandrin on expression of TLR genes and 5 associated miRNAs in A375 cells has been determined by qRT-PCR. In addition, the levels of MyD88, TLR2 and TLR4 proteins were analyzed by western blot method. ELISA indicated that oleandrin treatment (47 nM at 48 h) reduced the level of proinflammatory cytokine IFNG. TUNEL analysis showed that apoptosis rate was significantly increased in the oleandrin dose group. According to qRT-PCR results, there was a significant decrease in IRAK1, IRAK4, MyD88, TLR2-TLR7 and TRAF3 expressions in the oleandrin treated group compared to the control (untreated cell). Also, a significant decrease in TLR4 protein expression has been observed. In addition, oleandrin significantly downregulated the levels of hsa-miRNA-146a-5p and hsa-miRNA-21-5p. In conclusion, it has been observed that oleandrin has an effect on TLR pathway-related genes and miRNAs in melanoma cells. We show that TLRs pathways and hsa-miR-146a-5p and hsa-miR-21-5p can participate in the oleandrin molecular mechanism of action.
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Affiliation(s)
- Canan Eroğlu Güneş
- Department of Medical Biology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey.
| | - Fatma Seçer Çelik
- Department of Molecular Biology and Genetics, Konya Food and Agriculture University, Konya, Turkey
| | - Mücahit Seçme
- Department of Medical Biology, Faculty of Medicine, Ordu University, Ordu, Turkey
| | - Levent Elmas
- Department of Medical Biology, Faculty of Medicine, Bakırçay University, Izmir, Turkey
| | - Yavuz Dodurga
- Department of Medical Biology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Ercan Kurar
- Department of Medical Biology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
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Xie J, Zhong C, Wang T, He D, Lu L, Yang J, Yuan Z, Zhang J. Better Bioactivity, Cerebral Metabolism and Pharmacokinetics of Natural Medicine and Its Advanced Version. Front Pharmacol 2022; 13:937075. [PMID: 35833035 PMCID: PMC9271619 DOI: 10.3389/fphar.2022.937075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 05/27/2022] [Indexed: 11/13/2022] Open
Abstract
Currently, many people are afflicted by cerebral diseases that cause dysfunction in the brain and perturb normal daily life of people. Cerebral diseases are greatly affected by cerebral metabolism, including the anabolism and catabolism of neurotransmitters, hormones, neurotrophic molecules and other brain-specific chemicals. Natural medicines (NMs) have the advantages of low cost and low toxicity. NMs are potential treatments for cerebral diseases due to their ability to regulate cerebral metabolism. However, most NMs have low bioavailability due to their low solubility/permeability. The study is to summarize the better bioactivity, cerebral metabolism and pharmacokinetics of NMs and its advanced version. This study sums up research articles on the NMs to treat brain diseases. NMs affect cerebral metabolism and the related mechanisms are revealed. Nanotechnologies are applied to deliver NMs. Appropriate delivery systems (exosomes, nanoparticles, liposomes, lipid polymer hybrid nanoparticles, nanoemulsions, protein conjugation and nanosuspensions, etc.) provide better pharmacological and pharmacokinetic characteristics of NMs. The structure-based metabolic reactions and enzyme-modulated catalytic reactions related to advanced versions of NMs alter the pharmacological activities of NMs.
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Affiliation(s)
- Jiaxi Xie
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Cailing Zhong
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Tingting Wang
- Biochemistry and Molecular Biology Laboratory, Experimental Teaching and Management Center, Chongqing Medical University, Chongqing, China
| | - Dan He
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Luyang Lu
- College of Pharmacy, Southwest Minzu University, Chengdu, China
| | - Jie Yang
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Ziyi Yuan
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Jingqing Zhang
- Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing, China
- *Correspondence: Jingqing Zhang,
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Francischini CRD, Mendonça CR, Barcelos KA, Silva MAM, Botelho AFM. Antitumor effects of oleandrin in different types of cancers: Systematic review. Toxicon 2022; 216:15-27. [PMID: 35772506 DOI: 10.1016/j.toxicon.2022.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/13/2022] [Accepted: 06/23/2022] [Indexed: 02/07/2023]
Abstract
Oleandrin, a cardiac glycoside isolated from the leaves of Nerium oleander, has known effects on the heart. Evidence from recent studies have highlighted its potential for anticancer properties. Therefore, we aimed to investigate the effects of oleandrin on cancer cell proliferation, viability and apoptosis in vitro and in vivo. We performed a systematic search in six electronic databases up to Jan 2022. We extracted information about the effects of oleandrin on cell proliferation, cell viability, apoptosis and/or cell cycle arrest in in vitro studies, and the effects on tumor size and volume in animal experimental models. We have retrieved 775 scientific studies. 14 studies met the inclusion criteria. They investigated the effects of oleandrin on breast, lung, pancreatic, colon, prostate, colorectal, oral, ovarian, glioma, melanoma, glioblastoma, osteosarcoma, and histiocytic lymphoma cancers. Overall, in vitro studies demonstrated that oleandrin was able to inhibit cell proliferation, decrease cell viability, and induce apoptosis and/or cell cycle arrest. In addition, oleandrin had an effect on reducing mean tumor size and volume in animal studies. Oleandrin, as a cytotoxic agent, demonstrated antitumor effects in different types of cancers, however important clinical limitations remain a concern. These results encourage future studies to verify the applicability of oleandrin in antineoplastic therapeutic protocols human and veterinary medicine, the investigation of antimetastatic properties, as well as the potential increase in patient survival and the decrease of tumor markers.
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Affiliation(s)
| | | | - Kênia Alves Barcelos
- Postgraduate Program of Animal Science, Escola de Veterinária e Zootecnia, Federal University of Goiás, Brazil
| | - Marco Augusto Machado Silva
- Postgraduate Program of Animal Science, Escola de Veterinária e Zootecnia, Federal University of Goiás, Brazil
| | - Ana Flávia Machado Botelho
- Postgraduate Program of Animal Science, Escola de Veterinária e Zootecnia, Federal University of Goiás, Brazil.
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Dialogue among Lymphocytes and Microglia in Glioblastoma Microenvironment. Cancers (Basel) 2022; 14:cancers14112632. [PMID: 35681612 PMCID: PMC9179556 DOI: 10.3390/cancers14112632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 02/06/2023] Open
Abstract
Simple Summary In this review, we summarize in vitro and in vivo studies related to glioblastoma models and human patients to outline the symbiotic bidirectional interaction between microglia, lymphocytes, and tumor cells that develops during tumor progression. Particularly, we highlight the current experimental therapeutic approaches that aim to shape these interplays, such as adeno-associated virus (AAV) delivery and CAR-T and -NK cell infusion, and to modulate the tumor microenvironment in an anti-tumoral way, thus counteracting glioblastoma growth. Abstract Microglia and lymphocytes are fundamental constituents of the glioblastoma microenvironment. In this review, we summarize the current state-of-the-art knowledge of the microglial role played in promoting the development and aggressive hallmarks of this deadly brain tumor. Particularly, we report in vitro and in vivo studies related to glioblastoma models and human patients to outline the symbiotic bidirectional interaction between microglia, lymphocytes, and tumor cells that develops during tumor progression. Furthermore, we highlight the current experimental therapeutic approaches that aim to shape these interplays, such as adeno-associated virus (AAV) delivery and CAR-T and -NK cell infusion, and to modulate the tumor microenvironment in an anti-tumoral way, thus counteracting glioblastoma growth.
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13
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Li X, Zheng J, Chen S, Meng FD, Ning J, Sun SL. Oleandrin, a cardiac glycoside, induces immunogenic cell death via the PERK/elF2α/ATF4/CHOP pathway in breast cancer. Cell Death Dis 2021; 12:314. [PMID: 33762577 PMCID: PMC7990929 DOI: 10.1038/s41419-021-03605-y] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 12/22/2022]
Abstract
Chemotherapeutic agents have been linked to immunogenic cell death (ICD) induction that is capable of augmenting anti-tumor immune surveillance. The cardiac glycoside oleandrin, which inhibits Na+/K+-ATPase pump (NKP), has been shown to suppress breast cancer growth via inducing apoptosis. In the present study, we showed that oleandrin treatment triggered breast cancer cell ICD by inducing calreticulin (CRT) exposure on cell surface and the release of high-mobility group protein B1 (HMGB1), heat shock protein 70/90 (HSP70/90), and adenosine triphosphate (ATP). The maturation and activation of dendritic cells (DCs) were increased by co-culturing with the oleandrin-treated cancer cells, which subsequently enhanced CD8+ T cell cytotoxicity. Murine breast cancer cell line EMT6 was engrafted into BALB/c mice, and tumor-bearing mice were administered with oleandrin intraperitoneally every day. Oleandrin inhibited tumor growth and increased tumor infiltrating lymphocytes including DCs and T cells. Furthermore, the differential mRNA expression incurred by oleandrin was investigated by mRNA sequencing and subsequently confirmed by quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting. Mechanistically, oleandrin induced endoplasmic reticulum (ER) stress-associated, caspase-independent ICD mainly through PERK/elF2α/ATF4/CHOP pathway. Pharmacological and genetic inhibition of protein kinase R-like ER kinase (PERK) suppressed oleandrin-triggered ICD. Taken together, our findings showed that oleandrin triggered ER stress and induced ICD-mediated immune destruction of breast cancer cells. Oleandrin combined with immune checkpoint inhibitors might improve the efficacy of immunotherapy.
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Affiliation(s)
- Xiaoxi Li
- Central Laboratory, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, 110042, People's Republic of China
| | - Jian Zheng
- Department of Thoracic Cancer, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, 110042, People's Republic of China
| | - Shi Chen
- Central Laboratory, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, 110042, People's Republic of China
| | - Fan-Dong Meng
- Molecular Oncology Laboratory of Cancer Research Institute, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, People's Republic of China
| | - Jing Ning
- Department of General Medicine (VIP ward) & Department of Tumor Supportive and Palliative Medicine, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, 110042, People's Republic of China
| | - Shu-Lan Sun
- Central Laboratory, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, 110042, People's Republic of China.
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14
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Newman RA, Sastry KJ, Arav-Boger R, Cai H, Matos R, Harrod R. Antiviral Effects of Oleandrin. J Exp Pharmacol 2020; 12:503-515. [PMID: 33262663 PMCID: PMC7686471 DOI: 10.2147/jep.s273120] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 10/25/2020] [Indexed: 12/13/2022] Open
Abstract
Over the past 15 years, investigators have reported on the utility and safety of cardiac glycosides for numerous health benefits including those as treatments for malignant disease, stroke-mediated ischemic injury and certain neurodegenerative diseases. In addition to those, there is a growing body of evidence for novel antiviral effects of selected cardiac glycoside molecules. One unique cardiac glycoside, oleandrin derived from Nerium oleander, has been reported to have antiviral activity specifically against 'enveloped' viruses including HIV and HTLV-1. Importantly, a recent publication has presented in vitro evidence for oleandrin's ability to inhibit production of infectious virus particles when used for treatment prior to, as well as after infection by SARS-CoV-2/COVID-19. This review will highlight the known in vitro antiviral effects of oleandrin as well as present previously unpublished effects of this novel cardiac glycoside against Ebola virus, Cytomegalovirus, and Herpes simplex viruses.
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Affiliation(s)
- Robert A Newman
- Department of Experimental Therapeutics, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77054, USA.,Phoenix Biotechnology, Inc, San Antonio, TX 78217, USA
| | - K Jagannadha Sastry
- Departments of Thoracic, Head and Neck Medical Oncology and Veterinary Sciences, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ravit Arav-Boger
- Division of Infectious Diseases, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Hongyi Cai
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | | | - Robert Harrod
- Department of Biological Sciences, the Dedman College Center for Drug Discovery, Design & Delivery, Southern Methodist University, Dallas, TX 75275, USA
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15
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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: 15] [Impact Index Per Article: 3.8] [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.
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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
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16
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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: 37] [Impact Index Per Article: 9.3] [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.
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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
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17
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Natural killer cells modulate motor neuron-immune cell cross talk in models of Amyotrophic Lateral Sclerosis. Nat Commun 2020; 11:1773. [PMID: 32286313 PMCID: PMC7156729 DOI: 10.1038/s41467-020-15644-8] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 03/18/2020] [Indexed: 12/13/2022] Open
Abstract
In amyotrophic lateral sclerosis (ALS), immune cells and glia contribute to motor neuron (MN) degeneration. We report the presence of NK cells in post-mortem ALS motor cortex and spinal cord tissues, and the expression of NKG2D ligands on MNs. Using a mouse model of familial-ALS, hSOD1G93A, we demonstrate NK cell accumulation in the motor cortex and spinal cord, with an early CCL2-dependent peak. NK cell depletion reduces the pace of MN degeneration, delays motor impairment and increases survival. This is confirmed in another ALS mouse model, TDP43A315T. NK cells are neurotoxic to hSOD1G93A MNs which express NKG2D ligands, while IFNγ produced by NK cells instructs microglia toward an inflammatory phenotype, and impairs FOXP3+/Treg cell infiltration in the spinal cord of hSOD1G93A mice. Together, these data suggest a role of NK cells in determining the onset and progression of MN degeneration in ALS, and in modulating Treg recruitment and microglia phenotype. Neuroimmune interactions are important in amyotrophic lateral sclerosis (ALS). Here the authors characterize the role of NK cells in mouse models of ALS, and in patient tissue.
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18
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Terzioglu-Usak S, Nalli A, Elibol B, Ozek E, Hatiboglu MA. Anvirzel TMregulates cell death through inhibiting GSK-3 activity in human U87 glioma cells. Neurol Res 2020; 42:68-75. [PMID: 31900072 DOI: 10.1080/01616412.2019.1709744] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Objectives: Cardiac glycosides are used as potential anti-cancer agents due to their effects on the inhibition of proliferation and induction of apoptosis and/or autophagy in cancer cells. Herein, we aimed to study the potential signaling pathways taken role in differential cell-death properties of AnvirzelTM which is consisted of two toxic cardiac glycosides (oleandrin and oleandrigenin), in U87 human glioblastoma cells.Methods: The anti-proliferative and anti-migratory effects of AnvirzelTM were assessed in U87 cells by WST-1 assay and wound healing assay, respectively. After treatment of AnvirzelTMwith doses of 10, 25, 50, 100 and 250 μg/ml, expression levels of proteins related to cell death were investigated by Western blot.Results: Anvirzel™ markedly inhibited the growth of U87 cells in a time- and dose-dependent manner following 24 h and 48 h treatments (p < 0.05). In addition, it was found that Anvirzel™ inhibited GSK-3, NOS and HIF1-α expressions whereas activated ERK in U87 cells compared to vehicle (p < 0.05).Discussion: The results suggested that AnvirzelTM regulated cell death distinctly from apoptosis in human glioblastoma cells. Further studies are required for validation of mechanistic insights about the potential signaling pathways taken role in differential cell death properties of AnvirzelTM.
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Affiliation(s)
- Sule Terzioglu-Usak
- Department of Medical Biology, Bezmialem Vakif University Medical School, Istanbul, Turkey
| | - Arife Nalli
- Department of Neurosurgery, Bezmialem Vakif University Medical School, Istanbul, Turkey
| | - Birsen Elibol
- Department of Medical Biology, Bezmialem Vakif University Medical School, Istanbul, Turkey
| | - Erdinc Ozek
- Department of Neurosurgery, Bezmialem Vakif University Medical School, Istanbul, Turkey
| | - Mustafa Aziz Hatiboglu
- Department of Neurosurgery, Bezmialem Vakif University Medical School, Istanbul, Turkey.,Department of Molecular Biology, Beykoz Institute of Life Sciences and Biotechnology, Bezmialem Vakif University, Istanbul, Turkey
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19
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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.
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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
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20
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Kuhns KJ, Lopez-Bertoni H, Coulter JB, Bressler JP. TET1 regulates DNA repair in human glial cells. Toxicol Appl Pharmacol 2019; 380:114646. [PMID: 31278917 DOI: 10.1016/j.taap.2019.114646] [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: 01/04/2019] [Revised: 06/26/2019] [Accepted: 07/01/2019] [Indexed: 12/21/2022]
Abstract
Glioblastomas are the most aggressive of malignant brain cancers with a median patient survival of approximately 18 months. We recently demonstrated that Tet methylcytosine dioxygenase 1(TET1) is involved in cellular responses to ionizing radiation (IR) in glial-, glioblastoma-, and non-tumor-derived cells. This study used a lentiviral-mediated knockdown of TET1 to further dissect the contribution of TET1 to the DNA damage response in glial cell lines by evaluating its role in DNA repair. TET1-deficient glial cell lines displayed attenuated cytotoxicity compared to non-targeted knockdown after treatment with IR but these differences were not observed between control and TET1 deficient in response to inhibitors of Na+/K+-ATPase. Additionally, the percentage of glial cells displaying γH2A.x foci was greatly reduced in TET1-deficient glial cells compared to non-targeted knockdown conditions in response to IR and topoisomerase inhibitors. We also observed a lower percentage and a delay in 53BP1 foci formation, a marker of non-homologous end-joining, in response to IR and topoisomerase inhibitors in TET1-deficient glial cells. DNA-PK, another marker of non-homologous end-joining, was also lower in TET1-deficient glial cell lines. Interestingly, TET1-deficient glial cells displayed higher numbers of DNA strand breaks compared to control cells and repaired DNA breaks less efficiently in Comet assays. We suggest that attenuated DNA repair in TET1 deficient gliomas leads to genomic instability, which underlies poor patient survival.
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Affiliation(s)
- Katherine J Kuhns
- Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Johns Hopkins School of Medicine, 600 N. Wolfe Street, Baltimore, MD 21287, USA
| | - Hernando Lopez-Bertoni
- Department of Neurology, Hugo W. Moser Research Institute at Kennedy Krieger, 707 N. Broadway, Baltimore, MD 21205, USA; Department of Neurology, Johns Hopkins School of Medicine, 600 N. Wolfe Street, Baltimore, MD 21287, USA
| | - Jonathan B Coulter
- Department of Neurology, Hugo W. Moser Research Institute at Kennedy Krieger, 707 N. Broadway, Baltimore, MD 21205, USA; Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Johns Hopkins School of Medicine, 600 N. Wolfe Street, Baltimore, MD 21287, USA
| | - Joseph P Bressler
- Department of Neurology, Hugo W. Moser Research Institute at Kennedy Krieger, 707 N. Broadway, Baltimore, MD 21205, USA; Environmental Health Sciences, The Johns Hopkins University Bloomberg School of Public Health, Johns Hopkins School of Medicine, 600 N. Wolfe Street, Baltimore, MD 21287, USA.
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21
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Yong L, Ma Y, Liang C, He G, Zhao Z, Yang C, Hai B, Pan X, Liu Z, Liu X. Oleandrin sensitizes human osteosarcoma cells to cisplatin by preventing degradation of the copper transporter 1. Phytother Res 2019; 33:1837-1850. [PMID: 31050072 DOI: 10.1002/ptr.6373] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 03/19/2019] [Accepted: 04/01/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Lei Yong
- Department of OrthopedicsPeking University Third Hospital Beijing 100191 China
| | - Yunlong Ma
- The Center for Pain MedicinePeking University Third Hospital Beijing 100191 China
| | - Chen Liang
- Department of OrthopedicsPeking University Third Hospital Beijing 100191 China
| | - Guanping He
- Department of OrthopedicsPeking University Third Hospital Beijing 100191 China
| | - Zhigang Zhao
- Department of OrthopedicsPeking University Third Hospital Beijing 100191 China
| | - Chenlong Yang
- Department of OrthopedicsPeking University Third Hospital Beijing 100191 China
| | - Bao Hai
- Department of OrthopedicsPeking University Third Hospital Beijing 100191 China
| | - Xiaoyu Pan
- Department of OrthopedicsPeking University Third Hospital Beijing 100191 China
| | - Zhongjun Liu
- Department of OrthopedicsPeking University Third Hospital Beijing 100191 China
| | - Xiaoguang Liu
- Department of OrthopedicsPeking University Third Hospital Beijing 100191 China
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22
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Ren Y, Carcache de Blanco EJ, Fuchs JR, Soejarto DD, Burdette JE, Swanson SM, Kinghorn AD. Potential Anticancer Agents Characterized from Selected Tropical Plants. JOURNAL OF NATURAL PRODUCTS 2019; 82:657-679. [PMID: 30830783 PMCID: PMC6441492 DOI: 10.1021/acs.jnatprod.9b00018] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Higher plants are well known for their value in affording clinically useful anticancer agents, with such compounds acting against cancer cells by a range of mechanisms of action. There remains a strong interest in the discovery and development of plant secondary metabolites as additional cancer chemotherapeutic lead compounds. In the present review, progress on the discovery of plant-derived compounds of the biflavonoid, lignan, sesquiterpene, steroid, and xanthone structural types is presented. Several potential anticancer leads of these types have been characterized from tropical plants collected in three countries as part of our ongoing collaborative multi-institutional project. Preliminary structure-activity relationships and work on in vivo testing and cellular mechanisms of action are also discussed. In addition, the relevant work reported by other groups on the same compound classes is included herein.
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Affiliation(s)
- Yulin Ren
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Esperanza J. Carcache de Blanco
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - James R. Fuchs
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Djaja D. Soejarto
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, United States
- Science and Education, Field Museum of Natural History, Chicago, IL 60605, United States
| | - Joanna E. Burdette
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, United States
| | - Steven M. Swanson
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, United States
| | - A. Douglas Kinghorn
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
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Oleandrin synergizes with cisplatin in human osteosarcoma cells by enhancing cell apoptosis through activation of the p38 MAPK signaling pathway. Cancer Chemother Pharmacol 2018; 82:1009-1020. [PMID: 30267330 PMCID: PMC6267710 DOI: 10.1007/s00280-018-3692-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 09/24/2018] [Indexed: 01/14/2023]
Abstract
Purpose Our previous studies have reported the antitumor effect of oleandrin on osteosarcoma; however, its chemosensitizing effect in osteosarcoma treatment is still unknown. Therefore, we explored the sensitizing effects of oleandrin to cisplatin in osteosarcoma and investigated the potential mechanisms. Methods After exposure to oleandrin and/or cisplatin, CCK-8 and colony formation assays, DAPI staining and flow cytometry were performed to detect cell proliferation and apoptosis in 143B, U-2OS and MG-63 osteosarcoma cells. The median-effect analysis was applied to evaluate the combined effect. Western blot was used to determine the expression of related proteins. Osteosarcoma xenografts and histological observations were applied to confirm the combined effect in vivo. Results Compared with cisplatin or oleandrin alone, the combined treatment significantly inhibited cell proliferation and induced cell apoptosis. The median-effect analysis indicated a synergistic cytotoxic effect. The combined treatment downregulated Bcl-2 and upregulated Bax and cleaved caspase-3, -8 and -9. And the suppression of caspases reduced cell death. Furthermore, oleandrin alone or with cisplatin, activated the p38 MAPK/Elk-1 pathway. The inhibition of the p38 MAPK pathway increased cell viability and reduced apoptosis. In vivo, the combined treatment was also verified to significantly inhibit tumor growth, induce apoptosis and activate the p38 MAPK pathway. Conclusions The combination of oleandrin with cisplatin exerts a synergistic antitumor effect in osteosarcoma, which relates to the activation of the p38 MAPK pathway.
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Elmaci İ, Alturfan EE, Cengiz S, Ozpinar A, Altinoz MA. Neuroprotective and tumoricidal activities of cardiac glycosides. Could oleandrin be a new weapon against stroke and glioblastoma? Int J Neurosci 2018; 128:865-877. [DOI: 10.1080/00207454.2018.1435540] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- İlhan Elmaci
- Department of Neurosurgery, Memorial Hospital, Istanbul, Turkey
| | | | - Salih Cengiz
- Department of Biochemistry, Institute of Forensic Medicine, Istanbul, Turkey
| | - Aysel Ozpinar
- Department of Medical Biochemistry, Acibadem University, Istanbul, Turkey
| | - Meric A. Altinoz
- Neuroacademy Group, Istanbul, Turkey
- Department of Psychiatry, Maastricht University, Holland
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