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Gade IS, Chadéneau C, Simo RT, Talla E, Atchade ADT, Seité P, Vannier B, Laurent S, Henoumont C, Kamdje AHN, Muller JM. Euphol from Tapinanthus sp. Induces Apoptosis and Affects Signaling Proteins in Glioblastoma and Prostate Cancer Cells. Asian Pac J Cancer Prev 2022; 23:4205-4212. [PMID: 36580003 PMCID: PMC9971480 DOI: 10.31557/apjcp.2022.23.12.4205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/16/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Plants play an important role in cancer therapy. They are source of natural molecules which can induce apoptosis in cancer cells by affecting molecular mechanisms implicated in cancer progression. The MAP Kinase/ERK1/2 and PI3K/AKT signaling pathways are two classical signaling pathways implicated in cancer progression and constitute therapeutic targets against cancer. This study aimed to evaluate the effect of euphol on MAP Kinase/ERK1/2 and PI3K/AKT signaling pathways in glioblastoma and prostate cancer cells. Euphol is a tetracyclique triterpene alcohol isolated from Tapinanthus sp. which is a hemi parasitic plant belonging to Loranthaceae family. METHODS Plant powder was extracted by maceration and euphol was isolated and described using respectively column chromatography separation on silica gel and spectroscopic data. Cytotoxic effect of euphol was evaluated using XTT assay and its effect on MAP Kinase/ERK1/2 and PI3K/AKT protein expression was investigated by Western immunoblot analysis. Apotosis was analyzed by evaluating caspase-3/7 activity. RESULTS Our investigations demonstrated that this compound has an important cytotoxic effect on C6 and U87 MG glioblastoma (GBM) cells and PC-3 prostate cancer cells. Furthermore, euphol-induced apoptosis revealed by elevated caspase 3/7 activity, was correlated with a significant inhibition of MAP kinase/Erk 1/2 and PI3K/Akt signaling pathway in glioblastoma U87 MG cells. The reverse effect was observed in C6 glioblastoma cells, where apoptosis was correlated with a long-lasting activation of Erk 1/2. In PC-3 cells, euphol had no or limited effect on Erk 1/2 and Akt activity. CONCLUSION These results indicate that euphol induces cell death in glioblastoma and prostate cancer cells and regulates significantly Erk1/2 and Akt activity in glioblastoma cells.
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Affiliation(s)
- Isaac Silvère Gade
- Department of Organic Chemistry, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon.
- UFR Fundamental and Applied Sciences, Team Receptors, Regulations, Tumor Cells (2RCT)-EA 3842 CAPTuR, Health-Building Biology Pole. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA 51106, 86073 POITIERS Cedex 9, France.
| | - Corinne Chadéneau
- UFR Fundamental and Applied Sciences, Team Receptors, Regulations, Tumor Cells (2RCT)-EA 3842 CAPTuR, Health-Building Biology Pole. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA 51106, 86073 POITIERS Cedex 9, France.
| | - Richard Tagne Simo
- Department of Biomedical Sciences, University of Ngaoundere, P.O. Box 454 Ngaoundere, Cameroon.
- School of Chemical Engineering and Mineral Industries, University of Ngaoundere, P.O. Box 454 Ngaoundere, Cameroon.
| | - Emmanuel Talla
- School of Chemical Engineering and Mineral Industries, University of Ngaoundere, P.O. Box 454 Ngaoundere, Cameroon.
- Department of Chemistry, University of Ngaoundere, P.O. Box 454 Ngaoundere, Cameroon.
| | | | - Paule Seité
- UFR Fundamental and Applied Sciences, Team Receptors, Regulations, Tumor Cells (2RCT)-EA 3842 CAPTuR, Health-Building Biology Pole. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA 51106, 86073 POITIERS Cedex 9, France.
| | - Brigitte Vannier
- UFR Fundamental and Applied Sciences, Team Receptors, Regulations, Tumor Cells (2RCT)-EA 3842 CAPTuR, Health-Building Biology Pole. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA 51106, 86073 POITIERS Cedex 9, France.
| | - Sophie Laurent
- Laboratory of NMR and Molecular Imaging, Department of General, Organic Chemistry and Biomedical, University of MONS, Mons, Belgium.
| | - Céline Henoumont
- Laboratory of NMR and Molecular Imaging, Department of General, Organic Chemistry and Biomedical, University of MONS, Mons, Belgium.
| | - Armel H Nwabo Kamdje
- Department of Biomedical Sciences, University of Ngaoundere, P.O. Box 454 Ngaoundere, Cameroon.
| | - Jean-Marc Muller
- UFR Fundamental and Applied Sciences, Team Receptors, Regulations, Tumor Cells (2RCT)-EA 3842 CAPTuR, Health-Building Biology Pole. B36/B37, University of Poitiers, 1 rue Georges Bonnet-TSA 51106, 86073 POITIERS Cedex 9, France.
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Cruz LS, de Oliveira TL, Kanunfre CC, Paludo KS, Minozzo BR, Prestes AP, Wang M, Fernandes D, Santos FAD, Manda VK, Khan SI, Ali Z, de Messias-Reason IJ, Avula B, Khan IA, Beltrame FL. Pharmacokinetics and cytotoxic study of euphol from Euphorbia umbellata (Bruyns) Pax latex. Phytomedicine 2018; 47:105-112. [PMID: 30166094 DOI: 10.1016/j.phymed.2018.04.055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 03/20/2018] [Accepted: 04/29/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Medicinal plants are an important source to identify new active pharmaceutical compounds. Traditionally, the sap of Euphorbia umbellata is widely used to treat cancer and inflammatory conditions. These effects have been attributed to the presence of terpenes and phenolic compounds in the extracts of this plant. Euphol, a tetracyclic triterpene alcohol, is one of the major compounds present in Euphorbia species, and some biological activities have been attributed to this compound. PURPOSE This study aimed to evaluate the in vitro cytotoxicity of euphol against Jurkat, HL-60, K-562, B16F10, and HRT-18 cells lines, as well as the biological stability, distribution, metabolism properties in vitro, and the determination of the concentration of euphol in the plasma and liver of rats. METHODS The MTT reduction assay was used to evaluate the cytotoxicity of euphol against cancer cell lines, and the selectivity index, the morphology and cell cycle assays to evaluate the death mechanisms in K-562 and B16F10 lineages. UHPLC-MS was applied for the in vivo evaluation of the concentration of euphol in plasma and liver, and in vitro metabolic stability in human liver microsomes and S9 fraction, plasma protein binding, and stability in simulated gastric and intestinal fluids assays. CONCLUSIONS This study demonstrated that euphol exhibited cytotoxic effects against a variety of cancer cells lines, selectivity against leukemia and possibly, the mechanism involved is apoptosis. The evaluation of stability, distribution, and metabolism properties showed that euphol was unstable in gastric and intestinal fluids, presenting moderate plasma protein binding with two hours elimination half-life and possible phase II liver metabolism. All the results suggested that further studies could be developed to prove the viability of euphol as an anticancer agent.
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Affiliation(s)
- Luiza S Cruz
- Department of Pharmaceutical Sciences, State University of Ponta Grossa, Carlos Cavalcanti Avenue, 4748, Uvaranas, Ponta Grossa, Paraná 84030-900, Brazil
| | - Thais L de Oliveira
- Department of Medical Pathology, Federal University of Parana, General Carneiro Street, 460, Downtown, Curitiba, Paraná 80060-900, Brazil
| | - Carla C Kanunfre
- Department of Structural and Molecular Biology and Genetics, State University of Ponta Grossa, Carlos Cavalcanti Avenue, 4748, Uvaranas, Ponta Grossa, Paraná 84030-900, Brazil
| | - Katia S Paludo
- Department of Structural and Molecular Biology and Genetics, State University of Ponta Grossa, Carlos Cavalcanti Avenue, 4748, Uvaranas, Ponta Grossa, Paraná 84030-900, Brazil
| | - Bruno R Minozzo
- Department of Pharmaceutical Sciences, State University of Ponta Grossa, Carlos Cavalcanti Avenue, 4748, Uvaranas, Ponta Grossa, Paraná 84030-900, Brazil
| | - Ana P Prestes
- Department of Pharmaceutical Sciences, State University of Ponta Grossa, Carlos Cavalcanti Avenue, 4748, Uvaranas, Ponta Grossa, Paraná 84030-900, Brazil
| | - Mei Wang
- National Center for Natural Products Research, University of Mississippi, MS 38677, USA
| | - Daniel Fernandes
- Department of Pharmaceutical Sciences, State University of Ponta Grossa, Carlos Cavalcanti Avenue, 4748, Uvaranas, Ponta Grossa, Paraná 84030-900, Brazil
| | - Fábio A Dos Santos
- Department of Dendistry, State University of Ponta Grossa, Carlos Cavalcanti Avenue, 4748, Uvaranas, Ponta Grossa, Paraná 84030-900, Brazil
| | - Vamshi K Manda
- National Center for Natural Products Research, University of Mississippi, MS 38677, USA
| | - Shabana I Khan
- National Center for Natural Products Research, University of Mississippi, MS 38677, USA
| | - Zulfiqar Ali
- National Center for Natural Products Research, University of Mississippi, MS 38677, USA
| | - Iara J de Messias-Reason
- Department of Medical Pathology, Federal University of Parana, General Carneiro Street, 460, Downtown, Curitiba, Paraná 80060-900, Brazil
| | - Bharathi Avula
- National Center for Natural Products Research, University of Mississippi, MS 38677, USA
| | - Ikhlas A Khan
- National Center for Natural Products Research, University of Mississippi, MS 38677, USA
| | - Flávio L Beltrame
- Department of Pharmaceutical Sciences, State University of Ponta Grossa, Carlos Cavalcanti Avenue, 4748, Uvaranas, Ponta Grossa, Paraná 84030-900, Brazil.
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Luz LEC, Kanunfre CC, Paludo KS, da Silva Justo A, Petry VK, Lemes BM, Barison A, Nepel A, Wang M, Avula B, Khan IA, Beltrame FL. Cytotoxic biomonitored study of Euphorbia umbellata (Pax) Bruyns. J Ethnopharmacol 2016; 183:29-37. [PMID: 26906968 DOI: 10.1016/j.jep.2016.02.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 01/30/2016] [Accepted: 02/19/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Euphorbia umbellata latex (sap) has normally been used in folk medicine in southern Brazil to treat different types of cancers. AIM OF STUDY To carry out a biomonitored investigation of partitioned latex using in vitro assay, to identify the main mechanisms related with the action of the most active fraction as well as to develop a phytochemical study with this material. MATERIALS AND METHODS Biological screening was performed with hexane, chloroform, ethyl acetate and methanol fractions from the latex of E. umbellata using MTT, trypan blue, and neutral red assays to determine the cytotoxicity against HRT-18, HeLa and Jurkat cells and flow cytometry, DNA quantification, acridine orange and Hoechst 33342 staining to investigate mechanisms of action for the hexane extract. The phytochemical study of the hexane fraction was performed by chromatographic procedures and the substances were identified by NMR analysis. The isolated terpenes were evaluated using MTT to determine the cytotoxicity against Jurkat cells. RESULTS All the fractions presented concentration and time dependent cytotoxicity. The hexane fraction showed the highest cytotoxicity; whereas the Jurkat cell was the lineage with the highest sensitivity (IC50 1.87µg/mL). Fragmentation of DNA and apoptosis are two mechanisms related with the toxicity of hexane fraction. The hexane fraction arrested the cell cycle in the G0/G1 phase, and the selectivity index was 4.30. Phytochemical study of the hexane fraction led to isolation of euphol (main compound) and germanicol acetate. Both substances demonstrated some slight cytotoxic activity against Jurkat cells after 72h; however the activity was minimal compared to vincristine (anticancer standard drug). CONCLUSION The current research proves that the fractions of the latex from E. umbellata have a cytotoxic effect against three different cancer cells lines. The hexane fraction showed high in vitro cytotoxic effects against Jurkat cells demonstrating that the effect may be due to non-polar constituents. The two isolated terpenes (euphol and germanicol acetate) showed poor cytotoxic activity indicating that the anticancer properties of the extract may be caused by other substances present in the hexane fraction.
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Affiliation(s)
- Lívia Eidam Camargo Luz
- Department of Pharmaceutical Science, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
| | | | - Katia Sabrina Paludo
- Department of General Biology, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Aline da Silva Justo
- Department of Pharmaceutical Science, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Victor Kubaski Petry
- Department of Pharmaceutical Science, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Bruna Mikulis Lemes
- Department of Pharmaceutical Science, State University of Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Andersson Barison
- Nuclear Magnetic Resonance Centre, Federal University of Paraná, Curitiba, PR, Brazil
| | - Angelita Nepel
- Nuclear Magnetic Resonance Centre, Federal University of Paraná, Curitiba, PR, Brazil
| | - Mei Wang
- National Centre for Natural Products Research, University of Mississippi, Oxford, MS, USA
| | - Bharathi Avula
- National Centre for Natural Products Research, University of Mississippi, Oxford, MS, USA
| | - Ikhlas Ahmad Khan
- National Centre for Natural Products Research, University of Mississippi, Oxford, MS, USA; Division of Pharmacognosy, Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS, USA
| | - Flávio Luís Beltrame
- Department of Pharmaceutical Science, State University of Ponta Grossa, Ponta Grossa, PR, Brazil.
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de Oliveira TL, Munhoz ACM, Lemes BM, Minozzo BR, Nepel A, Barison A, Fávero GM, Campagnoli EB, Beltrame FL. Antitumoural effect of Synadenium grantii Hook f. (Euphorbiaceae) latex. J Ethnopharmacol 2013; 150:263-269. [PMID: 24008110 DOI: 10.1016/j.jep.2013.08.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 08/04/2013] [Accepted: 08/16/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Synadenium grantii Hook f. has traditionally been used to treat various neoplastic diseases in southern Brazil. AIM OF STUDY Evaluation of the antitumoural potential of Synadenium grantii latex against B16F10 melanoma cell line using in vitro and in vivo models, as well as a phytochemical study of the latex. MATERIALS AND METHODS The in vitro antitumoural activity was performed using MTT and trypan blue assays with different latex concentrations (1.7 µg-7.0 µg/well and 1.22 mg-4.88 mg/well). Flow cytometry was used to determine the progression of the cell cycle. The in vivo activity was performed by subcutaneously injecting melanoma cells in the dorsum of C57BL6 mice, followed by treating the mice with a popular form of use of the latex (garrafada) administered orally. After sacrificing the animals, histological analysis of the organs was performed by hematoxylin-eosin staining. The phytochemical study of the latex was performed by NMR and chromatographic procedures and the extracts and isolated substances were evaluated by IR, 1D and 2D NMR analysis. RESULTS The Synadenium grantii latex exhibited decreased cell viability of the melanoma line in a concentration and time-dependent manner, and also cell cycle arrest in the S-G2/M phase. The latex caused a 40% reduction in the volume of tumours of the mice with melanomas. Histological examination of the organs of these animals showed no differences between groups. The phytochemical investigation resulted in the isolation and identification of triterpene euphol and the steroid citrostadienol, which were tested against the strain of melanoma. Euphol showed no antitumoural activity, while the steroid citrostadienol showed reduced cytotoxic activity. CONCLUSION The Synadenium grantii latex presented in vitro and in vivo cytotoxic effects with antitumoural activity against B16F10 melanoma cells.
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Affiliation(s)
- Thais Latansio de Oliveira
- Laboratory of Pharmaceutical Technology, State University of Ponta Grossa, General Carlos Cavalcanti Avenue 4748, Ponta Grossa 84030-900, Paraná, Brazil
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