4.7 Article

Computational modeling of cyanobacterial phytoconstituents against toll-like receptors of skin cancer

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TAYLOR & FRANCIS INC
DOI: 10.1080/07391102.2023.2174600

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Melanoma; toll-like receptors; cyanobacteria; drug likeness; docking; simulation

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Melanoma is a dangerous and complex disease, making diagnosis and treatment difficult. Marine biomass plays a crucial role in preserving biodiversity. Research suggests that TLR activation, in addition to its role in innate immunity, may be connected to the development of cancer, making TLR agonists potential candidates for cancer medications. Scytonemin shows significant binding potential to TLR3 and TLR4, indicating its potential as a therapeutic agent.
Melanoma is an extremely dangerous disease. The diagnosis and treatment of it may be difficult because of its diversity and complexity. More than 90% of the marine biomass (microflora and microalgae) constitutes the natural biodiversity reserves. TLR-related research developments indicate possible cancer therapeutic possibilities. In addition to its significant function in innate immunity, TLR activation is connected to the start of pyroptosis, apoptosis, or autophagy in malignance cells. For these reasons, TLR agonists are appealing candidates for the production of cancer medications. From the web databases, the ternary structures of the receptors (TLR3 and TLR4) and ligands are extracted. Sixty-nine compounds were subjected to a drug likeness filter, but only twenty-two were screened further for evaluating ADMET criteria, in which only seven compounds satisfied the pharmacological properties. These compounds are further analyzed for docking parameters against TLRs (TLR3 and TLR4) and molecular simulation investigation of the best cluster to evaluate the complex stability. Molecular docking methodology discovered that Scytonmein has a significant binding potential energy of -5.21 and -7.92 kcal/mol against TLR3 and TLR4, respectively, in comparison to the redock co-crystal structure (-3.98 and -4.30 kcal/mol, respectively). The simulation analysis demonstrates the significant stability of the Scytonemin and TLR4 complexes in terms of average RMSD and RMSF compared to the redock complex, while criteria like solvent-accessible surface area (SASA), gyration (Rg) and hydrogen bonding have further supported the significant interaction and stability of the conformations.Communicated by Ramaswamy H. Sarma

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