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Unravelling the Molecular Interaction of Pentoxifylline with Calf Thymus DNA: A Multitechnique Approach

Mallappa, M and Savanur, MA and Gowda, BG and Reddy, MBM and Mulla, SI (2022) Unravelling the Molecular Interaction of Pentoxifylline with Calf Thymus DNA: A Multitechnique Approach. In: ChemistrySelect, 7 (9).

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Official URL: https://doi.org/10.1002/slct.202103781


The drug-DNA interaction studies provide vital insights for designing and developing effective chemotherapeutic agents used in treatment of different cancers. Thus, the interaction of potential anticancer agent pentoxifylline and calf thymus DNA was analysed by various spectroscopic and electrochemical methods under physiological condition. The absorption spectra of pentoxifylline with calf thymus DNA revealed the formation of complex by hyperchromic effect with a binding constant of 1.461 ×104 M−1. Fluorescence studies, further showed that pentoxifylline binds to calf thymus DNA and form a stable complex with a static quenching mechanism. Thermodynamic analysis further confirms that the interaction process is spontaneous with Vander Waals force or hydrogen bonding playing a major role. The electrochemical studies and circular dichroism spectra signify that pentoxifylline interacts by groove binding mode. Based on electrochemical and spectroscopic results, the mode of pentoxifylline binding to calf thymus DNA is mainly established through groove binding.

Item Type: Journal Article
Publication: ChemistrySelect
Publisher: John Wiley and Sons Inc
Additional Information: The copyright for this article belongs to the John Wiley and Sons Inc.
Keywords: Binding mode; Calf thymus DNA; Electrochemistry; Pentoxyfylline; Spectroscopy
Department/Centre: Division of Biological Sciences > Biochemistry
Date Deposited: 01 Jul 2022 06:08
Last Modified: 01 Jul 2022 06:08
URI: https://eprints.iisc.ac.in/id/eprint/73766

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