MitoQ and its hyaluronic acid-based nanopreparation mitigating gamma radiation-induced intestinal injury in mice: alleviation of oxidative stress and apoptosis

Mohamed Dawoud; Khalid M Attallah; Ismail T Ibrahim; Heba M Karam; Ayman A Ibrahim

doi:10.1007/s00210-024-02948-5

MitoQ and its hyaluronic acid-based nanopreparation mitigating gamma radiation-induced intestinal injury in mice: alleviation of oxidative stress and apoptosis

Naunyn Schmiedebergs Arch Pharmacol. 2024 Jan 22. doi: 10.1007/s00210-024-02948-5. Online ahead of print.

Authors

Mohamed Dawoud^{1

2}, Khalid M Attallah³, Ismail T Ibrahim³, Heba M Karam⁴, Ayman A Ibrahim⁵

Affiliations

¹ Department of Pharmaceutics, Faculty of Pharmacy, Helwan University, Cairo, Egypt.
² Department of Pharmaceutics, Faculty of Pharmacy, Umm Al-Qura, University, Makkah, Saudi Arabia.
³ Labeled Compounds Department, Hot Laboratories Centre, Egyptian Atomic Energy Authority, Cairo, Egypt.
⁴ Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Cairo, Egypt. Heba.karam.mohmed@gmail.com.
⁵ Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Cairo, Egypt.

PMID: 38252300
DOI: 10.1007/s00210-024-02948-5

Abstract

Perturbations produced by ionizing radiation on intestinal tissue are considered one of highly drastic challenges in radiotherapy. Animals were randomized into five groups. The first group was allocated as control, and the second was subjected to whole body γ-irradiation (10 Gy). The third was administered HA NP (17.6 mg/kg/day; i.p.) and then irradiated. The fourth one received MitoQ (2 mg/kg/day; i.p.) and then irradiated. The last group received MitoQ/HA NP (2 mg/kg/day; i.p.) for 5 days prior to irradiation. Mice were sacrificed a week post-γ-irradiation for evaluation. MitoQ/HA NP ameliorated mitochondrial oxidative stress as indicated by rising (TAC) and glutathione peroxidase and decreasing malondialdehyde, showing its distinguished antioxidant yield. That impacted the attenuation of apoptosis, which was revealed by the restoration of the anti-apoptotic marker and lessening proapoptotic caspase-3. Inflammatory parameters dwindled via treatment with MitoQ/HA NP. Moreover, this new NP exerts its therapeutic action through a distinguished radioprotective pathway (Hmgb1/TLR-4.) Subsequently, these antioxidants and their nanoparticles conferred protection to intestinal tissue as manifested by histopathological examination. These findings would be associated with its eminent antioxidant potential through high mitochondria targeting, enhanced cellular uptake, and ROS scavenging. This research underlines MitoQ/HA NP as a new treatment for the modulation of intestinal damage caused by radiotherapy modalities.

Keywords: Gamma radiation; Hyaluronic acid; Intestinal injury; MitoQ.

Abstract

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