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MAIT cells modulating the oral lichen planus immune microenvironment: a cellular crosstalk perspective.

Inflamm Res

January 2025

Departments of Oral Medicine, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong Province, China.

Mucosal-associated invariant T (MAIT) cells, a type of T lymphocytes with innate-like characteristics, are crucial in bridging innate and adaptive immunity. When activated, MAIT cells release various inflammatory molecules and swiftly respond to antigens. Notably, numerous studies highlight the significant impact of MAIT cells on tumors and various immune disorders by influencing the immune microenvironment.

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Case report: Rare case of laryngeal hypertrophic lichen planus.

Int J Surg Case Rep

December 2024

Institut de Cancérologie de Lorraine, 6 avenue de Bourgogne, 54519 Vandœuvre-lès-Nancy, France; CRAN, CNRS, UMR 7039, Université de Lorraine, Vandœuvre-lès-Nancy, France.

Introduction And Importance: Lichen planus is an inflammatory and chronic disease with multifactorial causes. Hypertrophic subtype of lichen planus is an extremely rare lesion when found in the larynx. This article describes the case of a man with such a lesion.

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Clinical predictors of disease severity in oral lichen planus.

Clin Exp Dermatol

January 2025

Institute of Dentistry, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen, UK.

Background: The limited understanding of factors influencing the disease progression of oral lichen planus (OLP) poses challenges in delivering effective and personalised treatment for this condition, known to increase the risk of oral cancer and adversely impact patient quality of life.

Objective: This study aimed to systematically identify clinical predictors of disease severity in OLP patients.

Methods: This cross-sectional and single-site prospective study was conducted between December 2021 and February 2024 in the Departments of Oral Medicine and Oral & Maxillofacial Surgery, Aberdeen Royal Infirmary.

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This case report describes Zoon's vulvitis or plasma cell vulvitis (PCV) with coexisting lichen planus (LP) treated with methotrexate. PCV is a rare, chronic, benign idiopathic inflammatory condition of the vulvar mucosa, characterized by a bright-red, chronic lesion of mucosa. Typically, it presents as atrophic, shiny, red plaques that can affect any part of the vulva and can spread symmetrically and bilaterally with the propensity of chronicity and gradual coalescence.

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Our study aimed to establish the basic reliability parameters of direct immunofluorescence test results in patients with oral lichen planus. We conducted an evaluation of individual antibody classes in the DIF and ELISA (BP180 antigen), comparing these results with the classical histopathological (HP) examination in a group of patients treated within the standard healthcare in our clinic. Among 66 participants with oral changes indicative of LP, only 50% received histopathological confirmation of the LP diagnosis.

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