Throughout history, humans have heavily relied on plants for both nourishment and the treatment of diseases. Breast cancer chemotherapies are expensive, have side effects, and may develop resistant cells. This shows the need for natural therapies to reduce the side effects of pharmacological remedies. Our objective was to isolate phytochemicals from the ethanol extract of the Eugenia uniflora plant. Another objective was to assess the antioxidant activity of the crude ethanolic extract of E. uniflora leaves and predict the drug-likeness, pharmacokinetics, and binding potentials of the identified phytochemicals as anti-breast cancer agents. From the results, fifteen phytochemicals were isolated and identified. The average total phenolic content (TPC), total flavonoid content (TFC), radical scavenging activity (DPPH), and ferric reducing antioxidant power (FRAP) values for the ethanol extract were 119.5 mg GAE/g, 141.16 mg GAE/g, 37.8 µg/mL, and 7.2 mmol/g, respectively. The chemical composition revealed 15 compounds: 3-Undecene, Acetic acid, Benzofuran, Hydroquinone, alpha-L-Galactopyranose, Methyl hexofuranoside, Nonadecanoic acid, 10-Octadecenoic acid, 2-Nonen-1-ol, Z-8-Methyl-9-tetradecenoic, 10-Undecenal, 2-Octylcyclopropene-1-heptanol, 1,5-Cyclododecadiene, Allantoic acid, and Stearic acid hydrazide. The drug-likeness and ADME properties of the fifteen identified compounds revealed non-violation of Lipinski's rules of five requirements. The docking screening of the fifteen identified phytochemicals with the human placental aromatase target revealed Stearic acid hydrazide, with the highest binding affinity of −7.86 kcal/mol, which can serve as a competitive aromatase inhibitor. The in-silico study gave a high probability that some of these compounds could be used as aromatase inhibitors and thus play a role in treating breast cancer. As far as we are aware, there has been no prior research conducted on the potential inhibitory effects of certain compounds found in E. uniflora on the aromatase enzyme.
Citation: Abdulrahman Mahmoud Dogara, Ateeq Ahmed Al-Zahrani, Sarwan W. Bradosty, Saber W. Hamad, Aisha Abdullahi Mahmud, Hussain D. Almalki, Mustapha Abdullahi, Abubakar Abdullahi Lema, Hasan Nudin Nur Fatihah. In-vitro biological activity and in-silico studies of some volatile phytochemicals from the ethanol extract of Eugenia uniflora[J]. AIMS Molecular Science, 2024, 11(3): 303-321. doi: 10.3934/molsci.2024018
Throughout history, humans have heavily relied on plants for both nourishment and the treatment of diseases. Breast cancer chemotherapies are expensive, have side effects, and may develop resistant cells. This shows the need for natural therapies to reduce the side effects of pharmacological remedies. Our objective was to isolate phytochemicals from the ethanol extract of the Eugenia uniflora plant. Another objective was to assess the antioxidant activity of the crude ethanolic extract of E. uniflora leaves and predict the drug-likeness, pharmacokinetics, and binding potentials of the identified phytochemicals as anti-breast cancer agents. From the results, fifteen phytochemicals were isolated and identified. The average total phenolic content (TPC), total flavonoid content (TFC), radical scavenging activity (DPPH), and ferric reducing antioxidant power (FRAP) values for the ethanol extract were 119.5 mg GAE/g, 141.16 mg GAE/g, 37.8 µg/mL, and 7.2 mmol/g, respectively. The chemical composition revealed 15 compounds: 3-Undecene, Acetic acid, Benzofuran, Hydroquinone, alpha-L-Galactopyranose, Methyl hexofuranoside, Nonadecanoic acid, 10-Octadecenoic acid, 2-Nonen-1-ol, Z-8-Methyl-9-tetradecenoic, 10-Undecenal, 2-Octylcyclopropene-1-heptanol, 1,5-Cyclododecadiene, Allantoic acid, and Stearic acid hydrazide. The drug-likeness and ADME properties of the fifteen identified compounds revealed non-violation of Lipinski's rules of five requirements. The docking screening of the fifteen identified phytochemicals with the human placental aromatase target revealed Stearic acid hydrazide, with the highest binding affinity of −7.86 kcal/mol, which can serve as a competitive aromatase inhibitor. The in-silico study gave a high probability that some of these compounds could be used as aromatase inhibitors and thus play a role in treating breast cancer. As far as we are aware, there has been no prior research conducted on the potential inhibitory effects of certain compounds found in E. uniflora on the aromatase enzyme.
[1] | Sen T, Samanta SK (2015) Medicinal plants, human health and biodiversity: A broad review. Biotechnological applications of biodiversity. Berlin, Heidelberg: Springer 59-110. https://doi.org/10.1007/10_2014_273 |
[2] | Arai M, Imai H, Koumura T, et al. (1999) Mitochondrial phospholipid hydroperoxide glutathione peroxidase plays a major role in preventing oxidative injury to cells. J Biol Chem 274: 4924-4933. https://doi.org/10.1074/jbc.274.8.4924 |
[3] | de Araujo FF, Neri-Numa IA, de Paulo Farias D, et al. (2019) Wild Brazilian species of Eugenia genera (Myrtaceae) as an innovation hotspot for food and pharmacological purposes. Food Res Int 121: 57-72. https://doi.org/10.1016/j.foodres.2019.03.018 |
[4] | De Araújo AVL, de Oliveira Neiva JF, de Mello Monteiro CB, et al. (2019) Efficacy of virtual reality rehabilitation after spinal cord injury: A systematic review. BioMed Res Int 2019: 7106951. https://doi.org/10.1155/2019/7106951 |
[5] | Busatto GF, de Araújo AL, da Silva Duarte AJ, et al. (2021) Post-acute sequelae of SARS-CoV-2 infection (PASC): A protocol for a multidisciplinary prospective observational evaluation of a cohort of patients surviving hospitalisation in Sao Paulo, Brazil. BMJ Open 11: e051706. https://doi.org/10.1136/bmjopen-2021-051706 |
[6] | Sitthan VK, Abdallah MS, Nallappan M, et al. (2023) Antioxidant and antibacterial activity of different solvent extracts of leaves and stem of Alyxia reinwardtii Blume. Malays Appl Biol 52: 67-80. https://doi.org/10.55230/mabjournal.v52i6.2581 |
[7] | Abdulrahman MD, Fatihah HNN, Khandaker MM, et al. (2019) In vitro biological investigations on Syzygium polyanthum cultivars. Intl J Agric Biol 22: 1399-1406. |
[8] | Merrouni IA, Elachouri M (2021) Anticancer medicinal plants used by Moroccan people: Ethnobotanical, preclinical, phytochemical and clinical evidence. J Ethnopharmacol 266: 113435. https://doi.org/10.1016/j.jep.2020.113435 |
[9] | Burguin A, Diorio C, Durocher F (2021) Breast cancer treatments: Updates and new challenges. J Pers Med 11: 808. https://doi.org/10.3390/jpm11080808 |
[10] | Al-Zahrani AA (2024) Aromatase inhibition using Juniperus procera phytochemical constituents: Molecular docking study. J Umm Al-Qura Univ Appl Sci 1–7. https://doi.org/10.1007/s43994-023-00114-w |
[11] | Soares M, Toffart AC, Timsit JF, et al. (2014) Intensive care in patients with lung cancer: A multinational study. Ann Oncol 25: 1829-1835. https://doi.org/10.1093/annonc/mdu234 |
[12] | Falcão AM, van Bruggen D, Marques S, et al. (2018) Disease-specific oligodendrocyte lineage cells arise in multiple sclerosis. Nat Med 24: 1837-1844. https://doi.org/10.1038/s41591-018-0236-y |
[13] | Tambara AL, de Los Santos Moraes L, Dal Forno AH, et al. (2018) Purple pitanga fruit (Eugenia uniflora L.) protects against oxidative stress and increase the lifespan in Caenorhabditis elegans via the DAF-16/FOXO pathway. Food Chem Toxicol 120: 639-650. https://doi.org/10.1016/j.fct.2018.07.057 |
[14] | Abdulrahman MD, Bradosty SW, Hamad SW, et al. (2022) Traditional methods for treatment and management of measles in Northern Nigeria: Medicinal plants and their molecular docking. Ethnobotany Res Appl 23: 1-18. |
[15] | Hou T, Wang J (2008) Structure–ADME relationship: still a long way to go?. Expert Opin Drug Metab Toxicol 4: 759-770. https://doi.org/10.1517/17425255.4.6.759 |
[16] | Victoria FN, Lenardão EJ, Savegnago L, et al. (2012) Essential oil of the leaves of Eugenia uniflora L.: Antioxidant and antimicrobial properties. Food Chem Toxicol 50: 2668-2674. https://doi.org/10.1016/j.fct.2012.05.002 |
[17] | Fidelis EM, Savall ASP, de Oliveira Pereira F, et al. (2022) Pitanga (Eugenia uniflora L.) as a source of bioactive compounds for health benefits: A review. Arabian J Chem 15: 103691. https://doi.org/10.1016/j.arabjc.2022.103691 |
[18] | Dogara AM (2023) Chemical composition of Corymbia citriodora. Nusantara Biosci 15: 172-178. https://doi.org/10.13057/nusbiosci/n150205 |
[19] | Reygaert WC (2018) An overview of the antimicrobial resistance mechanisms of bacteria. AIMS Microbiol 4: 482-501. https://doi.org/10.3934/microbiol.2018.3.482 |
[20] | Yunusa AK, Nouruddeen ZB, Adam SA, et al. (2023) Effects of roasting conditions on sensory attributes, polyphenolic content and DPPH radical scavenging activity of peanut (Arachis hypogaea). Croatian J Food Sci Technol 15: 130-140. https://doi.org/10.17508/CJFST.2023.15.2.01 |
[21] | Yunusa AK, Dandago MA, Abdullahi N, et al. (2018) Total phenolic content and antioxidant capacity of different parts of cucumber (Cucumis sativus L.). Acta Uni Cibiniensis Ser E: Food Technol 22: 13-20. https://doi.org/10.2478/aucft-2018-0008 |
[22] | Mahmoud AD, Ali AM, Khandaker MM, et al. (2019) Discrimination of Syzygium polyanthum Cultivars (Wight) Walp based on essential oil composition. J Agrobiotech 10: 1-9. |
[23] | Henriques AT, Sobral ME, Cauduro AD, et al. (1993) Aromatic plants from Brazil. II. the chemical composition of some Eugenia essential oils. J Essent Res 5: 501-505. https://doi.org/10.1080/10412905.1993.9698270 |
[24] | Mesquita PRR, Nunes EC, dos Santos FD, et al. (2017) Discrimination of Eugenia uniflora L. biotypes based on volatile compounds in leaves using HS-SPME/GC–MS and chemometric analysis. Microchem J 130: 79-87. https://doi.org/10.1016/j.microc.2016.08.005 |
[25] | Maliehe TS, Tsilo PH, Shandu JS (2020) Computational evaluation of ADMET properties and bioactive score of compounds from Encephalartos ferox. Pharmacogn J 12: 1357-1362. https://doi.org/10.5530/pj.2020.12.187 |
[26] | Pettersen EF, Goddard TD, Huang CC, et al. (2004) UCSF Chimera—A visualization system for exploratory research and analysis. J Comput Chem 25: 1605-1612. |
[27] | Sadowski J, Gasteiger J, Klebe G (1994) Comparison of automatic three-dimensional model builders using 639 X-ray structures. J Chem Inform Comput Sci 34: 1000-1008. https://doi.org/10.1021/ci00020a039 |
[28] | Bell SG, Dalton L, McNeish BL, et al. (2020) Aromatase inhibitor use, side effects and discontinuation rates in gynecologic oncology patients. Gynecol Oncol 159: 509-514. https://doi.org/10.1016/j.ygyno.2020.08.015 |
[29] | Bertelsen BE, Almås B, Fjermeros K, et al. (2024) Superior suppression of serum estrogens during neoadjuvant breast cancer treatment with letrozole compared to exemestane. Breast Cancer Res Treat 206: 347-358. https://doi.org/10.1007/s10549-024-07313-x |
[30] | Hospital A, Andrio P, Fenollosa C, et al. (2012) MDWeb and MDMoby: An integrated web-based platform for molecular dynamics simulations. Bioinformatics 28: 1278-1279. https://doi.org/10.1093/bioinformatics/bts139 |
[31] | Veiko AG, Olchowik-Grabarek E, Sekowski S, et al. (2023) Antimicrobial activity of quercetin, naringenin and catechin: Flavonoids inhibit Staphylococcus aureus-induced hemolysis and modify membranes of bacteria and erythrocytes. Molecules 28: 1252. https://doi.org/10.3390/molecules28031252 |
[32] | Hien VTD, Lin C, Thanh VC, et al. (2019) An overview of the development of vertical sampling technologies for ambient volatile organic compounds (VOCs). J Environ Manage 247: 401-412. https://doi.org/10.1016/j.jenvman.2019.06.090 |
[33] | Sankeshwari RM, Ankola AV, Bhat K, et al. (2018) Soxhlet versus cold maceration: Which method gives better antimicrobial activity to licorice extract against Streptococcus mutans?. J Sci Soc 45: 67-71. https://doi.org/10.4103/jss.JSS_27_18 |
[34] | Cosme P, Rodríguez AB, Espino J, et al. (2020) Plant phenolics: Bioavailability as a key determinant of their potential health-promoting applications. Antioxidants 9: 1263. https://doi.org/10.3390/antiox9121263 |
[35] | Royani A, Hanafi M, Julistiono H, et al. (2023) The total phenolic and flavonoid contents of Aloe vera and Morinda citrifolia extracts as antibacterial material against Pseudomonas aeruginosa. Materialstoday Proc 72: 2796-2802. https://doi.org/10.1016/j.matpr.2022.06.466 |
[36] | Brito AF, Semenova E, Dudas G, et al. (2022) Global disparities in SARS-CoV-2 genomic surveillance. Nat Commun 13: 7003. https://doi.org/10.1038/s41467-022-33713-y |
[37] | Nakanishi T, Sento Y, Kamimura Y, et al. (2023) Combined use of the ProSeal laryngeal mask airway and a bronchial blocker vs. a double-lumen endobronchial tube in thoracoscopic surgery: A randomized controlled trial. J Clin Anesth 88: 111136. https://doi.org/10.1016/j.jclinane.2023.111136 |
[38] | de Graaf C, Vermeulen NPE, Feenstra KA (2005) Cytochrome P450 in silico: An integrative modeling approach. J Med Chem 48: 2725-2755. https://doi.org/10.1021/jm040180d |
[39] | Srimai V, Ramesh M, Satya Parameshwar K, et al. (2013) Computer-aided design of selective Cytochrome P450 inhibitors and docking studies of alkyl resorcinol derivatives. Med Chem Res 22: 5314-5323. https://doi.org/10.1007/s00044-013-0532-5 |
[40] | Muegge I, Heald SL, Brittelli D (2001) Simple selection criteria for drug-like chemical matter. J Med Chem 44: 1841-1846. https://doi.org/10.1021/jm015507e |
[41] | Arnott JA, Planey SL (2012) The influence of lipophilicity in drug discovery and design. Expert Opin Drug Dis 7: 863-875. https://doi.org/10.1517/17460441.2012.714363 |
[42] | Kerns EH, Di L (2003) Pharmaceutical profiling in drug discovery. Drug Discov Today 8: 316-323. https://doi.org/10.1016/S1359-6446(03)02649-7 |
[43] | Borra NK, Kuna Y (2013) Evolution of toxic properties of anti Alzheimer's drugs through Lipinski's rule of five. Int J Pure App Biosci 1: 28-36. |
[44] | Ellingrod VL (2012) P-glycoprotein: Why this drug transporter may be clinically important. Curr Psychiatry 11: 38-40. |
[45] | Pyne S, Gayathri P (2005) Geometric methods in molecular docking. Bioinf India J 3: 11-12. |
[46] | Brodie A, Lu Q, Long B (1999) Aromatase and its inhibitors. J Steroid Biochem Mol Biol 69: 205-210. https://doi.org/10.1016/S0960-0760(99)00051-5 |
[47] | Clusan L, Ferrière F, Flouriot G, et al. (2023) A basic review on estrogen receptor signaling pathways in breast cancer. Int J Mol Sci 24: 6834. https://doi.org/10.3390/ijms24076834 |
[48] | Caciolla J, Bisi A, Belluti F, et al. (2020) Reconsidering aromatase for breast cancer treatment: New roles for an old target. Molecules 25: 5351. https://doi.org/10.3390/molecules25225351 |
[49] | Sherman PW, Billing J (1999) Darwinian gastronomy: Why we use spices: Spices taste good because they are good for us. BioScience 49: 453-463. https://doi.org/10.2307/1313553 |
[50] | Robinson A (2009) A review of the use of exemestane in early breast cancer. Ther Clin Risk Manag 5: 91-98. |
[51] | Garreau JR, DelaMelena T, Walts D, et al. (2006) Side effects of aromatase inhibitors versus tamoxifen: The patients' perspective. Am J Surg 192: 496-498. https://doi.org/10.1016/j.amjsurg.2006.06.018 |
[52] | Kosmidis PA, Deligianni E, Kosmidis T (2022) 247P Usage and side effects of each common aromatase inhibitor in 5 large European countries: Real-world data analysis. Ann Oncol 33: S236. |
[53] | Choudhari AS, Mandave PC, Deshpande M, et al. (2020) Phytochemicals in cancer treatment: From preclinical studies to clinical practice. Front pharmacol 10: 1614. https://doi.org/10.3389/fphar.2019.01614 |
[54] | Salim S, Hikmat M, Madzlan A (2023) Synthesis, spectral characterization and biological evaluation of platinum (II) complexes of 1, 3, 4-oxadiazole-2-thione from fatty acids. J Chem Soc Pak 45: 508-523. https://doi.org/10.52568/001396/JCSP/45.06.2023 |
[55] | Jubie S, Dhanabal P, Azam MA, et al. (2013) Synthesis and characterization of some novel fatty acid analogues: A preliminary investigation on their activity against human lung carcinoma cell line. Lipids Health Dis 12: 45. https://doi.org/10.1186/1476-511X-12-45 |
[56] | Rahman MM, Islam MB, Biswas M, et al. (2015) In vitro antioxidant and free radical scavenging activity of different parts of Tabebuia pallida growing in Bangladesh. BMC Res Notes 8: 621. https://doi.org/10.1186/s13104-015-1618-6 |
[57] | Grigalius I, Petrikaite V (2017) Relationship between antioxidant and anticancer activity of trihydroxyflavones. Molecules 22: 2169. https://doi.org/10.3390/molecules22122169 |
[58] | Park YJ, Choo WH, Kim HR, et al. (2015) Inhibitory aromatase effects of flavonoids from Ginkgo biloba extracts on estrogen biosynthesis. Asian Pac J Cancer Prev 16: 6317-6325. https://doi.org/10.7314/apjcp.2015.16.15.6317 |
[59] | Balunas MJ, Kinghorn AD (2010) Natural compounds with aromatase inhibitory activity: An update. Planta Med 76: 1087-1093. https://doi.org/10.1055/s-0030-1250169 |
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