Updates on immunological mechanistic insights and targeting of the oral lichen planus microenvironment

Front Immunol. 2023 Jan 9:13:1023213. doi: 10.3389/fimmu.2022.1023213. eCollection 2022.

Abstract

Oral lichen planus (OLP) is a chronic immune inflammatory disease that is an oral potentially malignant disorder (OPMD), occurs in the oral mucosa and affects approximately 0.5% to 4% of the general population. There are usually five types of OLP: reticular/papular, plaque-like, atrophic/erythematous, erosive/ulcerative, and bullous. Furthermore, the chance of causing oral squamous cell carcinoma (OSCC) is 1.4%. Although the etiology of OLP is still unknown, accumulating evidence supports that immune dysregulation may play a vital role in the pathogenesis of OLP, especially the massive production of various inflammatory cells and inflammatory mediators. In this review, we focus on the relationship between OLP and its immune microenvironment. We summarize current developments in the immunology of OLP, summarizing functional cell types and crucial cytokines in the OLP immune microenvironment and the underlying mechanisms of key signaling pathways in the OLP immune microenvironment. We highlight the application potential of targeted immune microenvironment therapy for OLP.

Keywords: chemokine; immune cells; immune microenvironment; immune therapy; oral lichen planus.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carcinoma, Squamous Cell* / pathology
  • Head and Neck Neoplasms*
  • Humans
  • Lichen Planus, Oral*
  • Mouth Neoplasms* / pathology
  • Squamous Cell Carcinoma of Head and Neck
  • Tumor Microenvironment

Grants and funding

This work was supported by grants from the National Natural Science Foundation of China (81872211, 82072999 and 82171809), the “Zero to One” Innovation Research Project of Sichuan University (No. 2022SCUH0029), and The CAMS Innovation Fund for Medical Sciences (2019-I2 M-5-004).