The Anti-Inflammatory Effect of Dapsone on Ovalbumin-Induced Allergic Rhinitis in Balb/C Mice Publisher Pubmed



Madanipour MR^{1, 2} ; Fatehizardalou M^{1, 2} ; Rahimi N^{1, 2} ; Hemmati S¹ ; Alaeddini M⁴ ; Etemadmoghadam S⁴ ; Shayan M^{1, 2} ; Dabiri S³ ; Dehpour AR^{1, 2} Show Affiliations
Source: Life Sciences Published:2022

Abstract

Aims: Allergic rhinitis (AR), a major chronic inflammatory disease of the respiratory system, is a public health issue because of its substantial negative impact on quality of life and work efficiency alongside its high prevalence and costs. Dapsone is a sulfone chemical with reported anti-inflammatory and antibacterial properties. Accordingly, we investigated the anti-inflammatory impact of dapsone on ovalbumin-induced allergic rhinitis in balb/c mice. Main methods: Intraperitoneal ovalbumin and hydroxide aluminum injection followed by intranasal ovalbumin administration sensitized female Balb/c mice. Mice received intraperitoneal dapsone either acute (5, 10, 20 mg/kg) 30 min before the last ovalbumin challenge, or chronic (20 mg/kg) on days 21 to 35. Key findings: Both acute and chronic intraperitoneal usage of dapsone showed a considerable decrease in the nasal scratching behavior, the number of sneezing, serum IL-4 and IgE levels of ovalbumin-induced AR in balb/c mice, but there was a significant increase in serum IFNγ level. Histopathological analysis demonstrated a significant reduction of eosinophil numbers, following dapsone injection. Goblet cell hyperplasia and respiratory epithelial-thickness decreased significantly in the acute and chronic 20 mg/kg dapsone groups compared to the ovalbumin-induced controls. Significance: This study shows that there is an association between acute and chronic dapsone treatment and some anti-allergic effects through an inflammation cascade. © 2022 Elsevier Inc.