» Articles » PMID: 39703341

Protective Effects of Quercetin Against Tongue Injury and Oxidative Stress Triggered by Irinotecan: a Histopathological, Biochemical and Molecular Study

Abstract

Introduction: About 80% of patients receiving chemotherapeutics suffer from side effects related to the gastrointestinal tract. Irinotecan (CPT-11) is a chemotherapeutic agent usually used in treating solid tumors. Quercetin (QRT), a bioflavonoid, is an antioxidant and scavenger reactive oxygen species scavenger.

Objective: The current study explored the possible protective effects of QRT against mucosal tongue injury caused by CPT-11.

Methods: The study included four equal groups: group 1/control, group 2/QRT, group 3/CPT-11, and group 4/CPT-11 + QRT.

Results: CPT-11-induced tongue injury in the form of non-healed ulcers, absent lingual papillae, mononuclear cells infiltration, marked deposition of collagen fibers, and overexpression of CD86 and tumor necrosis factor- α (TNF-α). The increased malondialdehyde levels, decreased superoxide dismutase and total antioxidant capacity revealed that there was an oxidative stress. Also, there was a decreased countenance of Ki-67 and Bcl-2 and an increased countenance of NF-κB. The QRT-treated group showed complete ulcer healing, with histological features almost like the control group, along with minimal collagen fiber deposition, decreased reactivity to CD86 and TNF-α and improvement of oxidative stress status and the molecular study results as well.

Conclusion: QRT possess protective properties against CPT-11-triggered tongue injury.

References
1.
Peterson D, Bensadoun R, Roila F . Management of oral and gastrointestinal mucositis: ESMO Clinical Practice Guidelines. Ann Oncol. 2011; 22 Suppl 6:vi78-84. PMC: 3662500. DOI: 10.1093/annonc/mdr391. View

2.
Santos A, Zanetta S, Cresteil T, Deroussent A, Pein F, Raymond E . Metabolism of irinotecan (CPT-11) by CYP3A4 and CYP3A5 in humans. Clin Cancer Res. 2000; 6(5):2012-20. View

3.
Ribeiro D, Salvadori D, Marques M . Abnormal expression of bcl-2 and bax in rat tongue mucosa during the development of squamous cell carcinoma induced by 4-nitroquinoline 1-oxide. Int J Exp Pathol. 2005; 86(6):375-81. PMC: 2517447. DOI: 10.1111/j.0959-9673.2005.00444.x. View

4.
Fraga C, Oteiza P, Galleano M . In vitro measurements and interpretation of total antioxidant capacity. Biochim Biophys Acta. 2013; 1840(2):931-4. DOI: 10.1016/j.bbagen.2013.06.030. View

5.
Miller A . Superoxide dismutases: ancient enzymes and new insights. FEBS Lett. 2011; 586(5):585-95. PMC: 5443681. DOI: 10.1016/j.febslet.2011.10.048. View