Novel antitumor activity of the combined treatment of galloylquinic acid compounds with doxorubicin in solid Ehrlich carcinoma model via the Notch signaling pathway modulation

• Published in: Life sciences (1973) 2022-06, Vol.299, p.120497-120497, Article 120497
• Main Authors: Abd El-Salam, Mohamed A., El-Tanbouly, Ghada S., Bastos, Jairo K., Metwaly, Heba A.
• Format: Article
• Language: English
• Subjects: Animals; Antineoplastic Agents - pharmacology; Antineoplastic Agents - therapeutic use; Carcinoma, Ehrlich Tumor - pathology; Caspase 3; Caspase 3 - metabolism; Copaifera lucens; Cyclin D1 - metabolism; Doxorubicin - pharmacology; Doxorubicin - therapeutic use; Galloylquinic acid compounds; Interleukin-6 - metabolism; Jagged-1; Jagged-1 Protein; Mice; NF-kappa B - metabolism; NF-κB p65; Notch-1; Oxidative stress; Signal Transduction; Solid Ehrlich carcinoma; Tumor Necrosis Factor-alpha - metabolism; Vascular Endothelial Growth Factor A - metabolism
• ISSN: 0024-3205; 1879-0631
• DOI: 10.1016/j.lfs.2022.120497

This study aims to investigate the potential synergistic effect of the combined treatment of galloylquinic acid compounds from Copaifera lucens with doxorubicin via the modulation of the Notch pathway in solid Ehrlich carcinoma-bearing mice model. The solid tumor model was induced by subcutaneous inoculation of Ehrlich carcinoma cells in the right hind limb of mice, after serial syngeneic cell passages in the peritoneal cavity. Sixty mice were allocated into five groups including treated groups with galloylquinic acid compounds, doxorubicin, and their combination. Normal and tumor control groups were also assigned. Tissue homogenates were collected to measure the levels of the Notch-1, Hes-1, Jagged-1, TNF-α, IL-6 and VEGF, as well as SOD, MDA, and GSH. Histopathological and immunohistochemical examinations of tumor or control tissues were also performed for the levels of NF-κB p65, cyclin D1 and caspase 3 activity. Our results showed that the combined treatment of galloylquinic acid compounds with doxorubicin significantly decreased the levels of the Notch-1, Hes-1, Jagged-1, TNF-α, IL-6, VEGF, NF-κB p65, and cyclin D1 in tumor tissues. Moreover, the compounds induced cancer cell death as evidence by increasing the caspase 3 activity, and they possessed potent inhibitory effects on oxidative stress. Galloylquinic acid compounds exhibited promising antineoplastic effects and promoted the chemosensitivity of doxorubicin, mainly by modulating the Notch signaling pathway and its downstream effectors. These compounds may be considered in solid tumors treatment for improving the efficacy and reducing the side effects of chemotherapeutic agents. [Display omitted]