Phytic acid potentiates oxaliplatin effects in colorectal cancer induced
by 1,2-DMH: the role of miR-224 and miR-200a

Tarek M. Okda; Mohamed A. Katry; Noha M. Ragab; Abdel-Gawad S. Shalkami

doi:10.5114/wo.2021.106061

eISSN: 1897-4309
ISSN: 1428-2526

Contemporary Oncology/Współczesna Onkologia

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2/2021
vol. 25

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abstract:

Original paper

Phytic acid potentiates oxaliplatin effects in colorectal cancer induced by 1,2-DMH: the role of miR-224 and miR-200a

Tarek M. Okda

¹

,

Mohamed A. Katry

^{2, 3}

,

Noha M. Ragab

⁴

,

Abdel-Gawad S. Shalkami

⁵

Department of Biochemistry, Faculty of Pharmacy, Damanhour University, Egypt
Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhour University, Egypt
Department of Oral Biology and Diagnostic Sciences, Augusta University, Augusta, USA
Department of Pathology, Medical Research Institute, Alexandria University, Egypt
Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Egypt

Contemp Oncol (Pozn) 2021; 25 (2): 118–124

DOI: https://doi.org/10.5114/wo.2021.106061

Online publish date: 2021/05/13

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Introduction
The third most frequently diagnosed cancer and one of the highest causes of tumour deaths worldwide is colorectal cancer (CRC). The main objective of this study was to determine the role of microRNA-224 (miR-224) as well as microRNA-200a (miR-200a) in CRC. Phytic acid (PA) is a natural antitumour product that was reported to inhibit CRC and play a vital role as a chemopreventive agent against CRC.

Material and methods
We induced CRC in albino rats using 1,2-dimethylhydrazine (1,2-DMH). The miR-224, miR-200a, and -catenin expressions were determined. ELISAs were performed to investigate Bcl-2 expression, caspase-3 activity, and total tissue antioxidants. Finally, histopathological investigations were performed.

Results
We observed a chemoprotective role of PA. PA has a synergistic effect as an antitumour agent with oxaliplatin in CRC treatment. The miR-224, miR-200a, and -catenin expression, when treated with PA alone or with oxaliplatin, was decreased markedly in comparison with the positive control group. The histopathological investigations of colorectal tissues confirmed our molecular and biochemical findings.

Conclusions
Phytic acid possessed efficient anti-carcinogenic properties alone or with oxaliplatin against 1,2-DMH-induced CRC in rats through pathways of apoptosis, cell proliferation, and antioxidants.

keywords:

Phytic acid potentiates oxaliplatin effects in colorectal cancer induced by 1,2-DMH: the role of miR-224 and miR-200a

Tarek M. Okda 1 , Mohamed A. Katry 2, 3 , Noha M. Ragab 4 , Abdel-Gawad S. Shalkami 5

CRC, phytic acid, miR-224, miR-200a, oxaliplatin

Tarek M. Okda

¹

,

Mohamed A. Katry

^{2, 3}

,

Noha M. Ragab

⁴

,

Abdel-Gawad S. Shalkami

⁵