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. 2024;27(18):2726-2733.
doi: 10.2174/1386207326666230821145508.

Conjugation of Doxorubicin and Carbon-based-nanostructures for Drug Delivery against HT-29 Colon Cancer Cells

Kaveh Jafari Aghdam  1 , Bahare Sabeti  1 , Fereshteh Chekin  2 , Maral Mashreghi  1
Affiliations

Conjugation of Doxorubicin and Carbon-based-nanostructures for Drug Delivery against HT-29 Colon Cancer Cells

Kaveh Jafari Aghdam et al. Comb Chem High Throughput Screen. 2024.

Abstract

Background: A drug delivery system is the method or process of administering a pharmaceutical compound to achieve a therapeutic effect in humans or animals. Such systems release the drugs at specific amounts in a specific site. The carbon based-nanomaterials have been actively used as drug carriers to treat various cancer.

Objective: This study aimed to evaluate the cytotoxic effects of DOX-GO, DOX-OMC and DOXCNT in colon cancer cells (HT29).

Methods: We reported platforms based on graphene oxide (GO), ordered mesoporous carbon (OMC) and carbon nanotubes (CNT) to conjugate with doxorubicin (DOX). The conjugation of DOX with carbon nanomaterial was investigated by UV-Vis spectroscopy, field emission scanning electron microscope (FE-SEM) and cyclic voltammetry (CV) methods.

Results: We showed that graphene oxide was a highly efficient matrix. Efficient loading of DOX, 89%, 78%, and 73.5% at pH 7.0 was seen onto GO, OMC and CNT, respectively. Upon pH 4. 0 after 15 h, 69%, 61% and 61% of DOX could be released from the DOX-GO, DOX-OMC and DOX-CNT, respectively, which illustrated the significant benefits of the developed approach for carbon nanomaterial applications. In vitro cytotoxicity analysis showed greater cytotoxicity of DOX/GO, DOX/OMC and DOX/CNT in comparison with GO, OMC and CNT against HT29 colon cancer cells with cell viability of 22%, 40% and 44% after 48 h for DOX-GO, DOX-OMC and DOX-CNT, respectively.

Conclusion: The nanohybrids based on DOX-carbon nanomaterial, because of their unique physical and chemical properties, will remarkably enhance the anti-cancer activity.

Keywords: Doxorubicin; carbon nanotubes; colon cancer cells.; cyclic voltammetry (CV); graphene oxide; ordered mesoporous carbon.

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