Evaluation of the Interaction of Cinacalcet with Calf Thymus dsDNA: Use of Electrochemical, Spectrofluorimetric and Molecular Docking Methods

Erkmen C., Unal D. N., KURBANOĞLU S., EREN G., USLU B.

Biosensors, cilt.12, sa.5, 2022 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12 Sayı: 5
  • Basım Tarihi: 2022
  • Doi Numarası: 10.3390/bios12050278
  • Dergi Adı: Biosensors
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Applied Science & Technology Source, EMBASE, INSPEC, MEDLINE, Directory of Open Access Journals
  • Anahtar Kelimeler: calf thymus double-stranded deoxyribonucleic acid, cinacalcet, electrochemistry, fluorescence spectroscopy, molecular docking, DNA BIOSENSORS, DRUG, OXIDATION, SEPARATION, MECHANISM, BINDING, GLIDE
  • Ankara Üniversitesi Adresli: Evet

Özet

© 2022 by the authors. Licensee MDPI, Basel, Switzerland.The binding of drugs to DNA plays a critical role in new drug discovery and is important for designing better drugs. In this study, the interaction and binding mode of calf-thymus doublestranded deoxyribonucleic acid (ct-dsDNA) with cinacalcet (CIN) from the calcimimetic drug that mimics the action of calcium on tissues group were investigated. The interaction of CIN with ctdsDNA was observed by the differential pulse voltammetry (DPV) technique by following the decrease in electrochemical oxidation signals to deoxyguanosine and adenosine. A competitive study was performed on an indicator, methylene blue, to investigate the interaction of the drug with ctdsDNA by fluorescence spectroscopy. Interaction studies have shown that the binding mode for the interaction of CIN with ct-dsDNA could be groove-binding. According to the results obtained, the binding constant values were found to be 6.30 × 104 M−1 and 3.16 × 105 M−1, respectively, at 25 °C as obtained from the cyclic voltammetry (CV) and spectroscopic techniques. Possible molecular interactions of CIN with dsDNA were explored via molecular docking experiments. The docked structure indicated that CIN could fit well into the minor groove of the DNA through H-bonding and π-π stacking contact with CIN.