Synthesis, characterization, In vitro and In silico investigations of novel 1,2,3-triazole substituted salicylic acid phenolic hydrazones hybrids targeting TGF-β2 expression in colorectal carcinoma


Ay E. N., ÇAKIR F., Akyüz S., Kılınç N., Tokalı F. S., ŞENOL H.

European Journal of Medicinal Chemistry, vol.296, 2025 (SCI-Expanded, Scopus) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 296
  • Publication Date: 2025
  • Doi Number: 10.1016/j.ejmech.2025.117915
  • Journal Name: European Journal of Medicinal Chemistry
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, EMBASE, MEDLINE, Veterinary Science Database
  • Keywords: 1,2,3-Triazoles, Colorectal cancer, Hydrazone, Molecular docking, TGF-β2
  • Yıldız Technical University Affiliated: Yes

Abstract

In this study, sixteen novel 1,2,3-triazole-substituted salicylic acid phenolic-hydrazone hybrids were synthesized and characterized using NMR, IR, HRMS, and HPLC techniques. The compounds were evaluated for their anticancer potential against HCT-116, Caco-2 and HT-29 colorectal carcinoma cells and normal BEAS-2B epithelial cells. Among them, compound 10k exhibited potent antiproliferative effects on HCT-116, Caco-2 and HT-29 with IC50 values of 6.84, 10.21, and 9.47 μM, respectively, which were significantly lower than the reference drug sorafenib (IC50 = 18.25, 13.80 and 7.89 μM) for HTC-116 and Caco-2. Biological assays demonstrated that 10k effectively downregulated TGF-β2 receptor and cytokine expression in a dose-dependent manner, indicating its role in modulating the TGF-β signaling pathway. Apoptosis analysis suggested that cytotoxicity was mediated via non-apoptotic mechanisms. Molecular docking studies revealed a strong binding affinity for compound 10k with a docking score of −11.28 kcal/mol. Furthermore, 250 ns molecular dynamics simulations confirmed the stability of the ligand-receptor complex with an RMSD value stabilized around 1.15 Å. Key interactions included hydrogen bonds with Asn-332, π-π stacking, and halogen bonding. ADMET predictions confirmed favorable drug-like properties with good permeability and safety profiles. These findings position compound 10k as a promising lead candidate for colorectal cancer therapy, targeting TGF-β2 mediated pathways with high efficacy and selectivity.