Frontiers in Immunology (Oct 2023)

Langerhans cell histiocytosis: current advances in molecular pathogenesis

  • Tommaso Sconocchia,
  • Johannes Foßelteder,
  • Giuseppe Sconocchia,
  • Andreas Reinisch,
  • Andreas Reinisch

DOI
https://doi.org/10.3389/fimmu.2023.1275085
Journal volume & issue
Vol. 14

Abstract

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Langerhans cell histiocytosis (LCH) is a rare and clinically heterogeneous hematological disease characterized by the accumulation of mononuclear phagocytes in various tissues and organs. LCH is often characterized by activating mutations of the mitogen-activated protein kinase (MAPK) pathway with BRAFV600E being the most recurrent mutation. Although this discovery has greatly helped in understanding the disease and in developing better investigational tools, the process of malignant transformation and the cell of origin are still not fully understood. In this review, we focus on the newest updates regarding the molecular pathogenesis of LCH and novel suggested pathways with treatment potential.

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