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<p><i>Excoecaria agallocha</i> L, a mangrove plant widely used in traditional medication in India, was the focus of this study to evaluate its antioxidant, anticancer, structural, dynamic, and biodegradability properties of its bioactive compound, ursolic acid. This study, a sample (<i>E. agallocha</i>) collected from the tropical Islands ecosystem of South Andaman, India, represents the first report identifying Ursolic acid from the methanolic extract. The structure elucidation of the isolated bioactive compound was characterized using FT-IR, <sup>1</sup>H(Proton), <sup>13</sup>C(Carbon) NMR spectroscopy, and HRMS. The antioxidant and anticancer activities were evaluated using the DPPH and MTT assay methods, respectively. The methanolic extract of <i>E. agallocha</i> demonstratedsignificantin vitro anticancer activity against Cervical (HeLa) and Breast (MDA-MB231) human cancer cell lines, with notable IC<sub>50</sub> values of 19.50 ± 0.41&#xa0;µg/mL and 20.67 ± 0.14&#xa0;µg/mL, respectively. It is highlighted that the ursolic acid’s anticancer activity was more potent, with IC<sub>50</sub> values of 3.5714&#xa0;µg/mL against MDA-MB231 cells compared to the methanolic extract. The methanolic extract’s antioxidant properties with IC<sub>50</sub> values of 90.37 ± 0.41 and purified ursolic acid molecule exhibited promising IC<sub>50</sub> values of 7.59 ± 0.41&#xa0;µg/mL. Gas Chromatography-Mass Spectrometry analysis of the methanolic extracts of <i>E. agallocha</i> revealed the presence of numerous pharmacologically bioactive compounds. In the in silico studies, molecular docking of two ligands, Ursolic acid and Obatoclax, with the Bcl-B protein demonstrated notable binding affinities, with <i>ΔG</i> values of -5.8&#xa0;kcal/mol and − 6.6&#xa0;kcal/mol, respectively. Ursolic acid’s binding affinity is comparable to Obatoclax’s, highlighting its potential as a viable anticancerous candidate for targeting Bcl-B protein. Assess the ligands’ impact on the protein’s stability, flexibility, compactness, folding properties, and solvent accessibility, MD simulations were performed. The MD simulation results revealed that the ligand-bound Bcl-B complexes exhibited significant structural stability, with moderate ligand-induced conformational changes observed in the target protein. Further, BIOWIN™ models indicated that the identified Ursolic Acid is biodegradable in an aerobic environment, underscoring its environmental compatibility. Deciphering the bioactivities of ursolic acid could uncover new therapeutic agents and enhance our understanding of its biodegradable environmental compatibility, revealing the source of already documented pharmacological compounds.</p>

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Decoding the multifunctional potential of ursolic acid: antioxidant, antiproliferative, molecular dynamics, and biodegradability evaluations of a mangrove-derived terpenoid

  • 期刊论文

  • 发表日期：

    2025年4月29日

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  • Anaikutti Parthiban,
  • Veeraragavan Sachithanandam,
  • Perumal Lalitha,
  • Priyanka Adhikari,
  • Santhiyagu Prakash,
  • Ramasamy Ramasubburayan,
  • Deepika Dhillon,
  • Jayaraman Muthukumaran,
  • Nambali Valsalan Vinithkumar,
  • Rengurajan Sridhar,
  • Ramachandran Purvaja

摘要

Excoecaria agallocha L, a mangrove plant widely used in traditional medication in India, was the focus of this study to evaluate its antioxidant, anticancer, structural, dynamic, and biodegradability properties of its bioactive compound, ursolic acid. This study, a sample (E. agallocha) collected from the tropical Islands ecosystem of South Andaman, India, represents the first report identifying Ursolic acid from the methanolic extract. The structure elucidation of the isolated bioactive compound was characterized using FT-IR, 1H(Proton), 13C(Carbon) NMR spectroscopy, and HRMS. The antioxidant and anticancer activities were evaluated using the DPPH and MTT assay methods, respectively. The methanolic extract of E. agallocha demonstratedsignificantin vitro anticancer activity against Cervical (HeLa) and Breast (MDA-MB231) human cancer cell lines, with notable IC50 values of 19.50 ± 0.41 µg/mL and 20.67 ± 0.14 µg/mL, respectively. It is highlighted that the ursolic acid’s anticancer activity was more potent, with IC50 values of 3.5714 µg/mL against MDA-MB231 cells compared to the methanolic extract. The methanolic extract’s antioxidant properties with IC50 values of 90.37 ± 0.41 and purified ursolic acid molecule exhibited promising IC50 values of 7.59 ± 0.41 µg/mL. Gas Chromatography-Mass Spectrometry analysis of the methanolic extracts of E. agallocha revealed the presence of numerous pharmacologically bioactive compounds. In the in silico studies, molecular docking of two ligands, Ursolic acid and Obatoclax, with the Bcl-B protein demonstrated notable binding affinities, with ΔG values of -5.8 kcal/mol and − 6.6 kcal/mol, respectively. Ursolic acid’s binding affinity is comparable to Obatoclax’s, highlighting its potential as a viable anticancerous candidate for targeting Bcl-B protein. Assess the ligands’ impact on the protein’s stability, flexibility, compactness, folding properties, and solvent accessibility, MD simulations were performed. The MD simulation results revealed that the ligand-bound Bcl-B complexes exhibited significant structural stability, with moderate ligand-induced conformational changes observed in the target protein. Further, BIOWIN™ models indicated that the identified Ursolic Acid is biodegradable in an aerobic environment, underscoring its environmental compatibility. Deciphering the bioactivities of ursolic acid could uncover new therapeutic agents and enhance our understanding of its biodegradable environmental compatibility, revealing the source of already documented pharmacological compounds.