Journal
MOLECULES
Volume 28, Issue 19, Pages -Publisher
MDPI
DOI: 10.3390/molecules28196955
Keywords
keratitis; aloeresin-A; phytochemicals; docking; inflammation; cornea
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This study aimed to identify multi-targeting Aloe vera-derived phytochemicals capable of inhibiting bacterial and host targets of contact lens-mediated microbial keratitis. The results showed that aloeresin-A exhibited strong binding energies and stable interactions with bacterial and host targets. The study of its reactivity also showed its potential. However, further research is needed for its potential integration into lens care solutions.
Contact lens-mediated microbial keratitis caused by Pseudomonas aeruginosa and Streptococcus pneumoniae provokes corneal damage and vision loss. Recently, natural phytochemicals have become complementary medicines for corneal destruction. Herein, we aimed to identify multi-targeting Aloe vera-derived phytochemicals capable of inhibiting bacterial and host targets of keratitis through ADME (absorption, distribution, metabolism, and excretion), docking, molecular dynamics (MD) simulation, MMGBSA (molecular mechanics generalized Born surface area) and density functional theory (DFT) investigations. An extensive literature search revealed ExoU, ExoS, ExoT, ExoY, and PLY as virulent bacterial targets. Simultaneously, differential gene expression (DGE) and pathway enrichment analysis-specified host transcription factor (SPI1) influences keratitis pathogenesis. Molecular docking analysis uncovered aloeresin-A as a promising inhibitor against bacterial and host targets, demonstrating strong binding energies ranging from -7.59 to -6.20 kcal/mol. Further, MMGBSA and MD simulation analysis reflect higher binding free energies and stable interactions of aloeresin-A with the targets. In addition, DFT studies reveal the chemical reactiveness of aloeresin-A through quantum chemical calculations. Hence, our findings show aloeresin-A to be a promising candidate for effectively inhibiting keratitis. However, additional research is imperative for potential integration into lens care solutions.
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