ALK-negative anaplastic large cell lymphoma with TP53 mutation developing during the administration of baricitinib for atopic dermatitis - A case report
- PMID: 40159283
- PMCID: PMC12051419
- DOI: 10.3960/jslrt.24048
ALK-negative anaplastic large cell lymphoma with TP53 mutation developing during the administration of baricitinib for atopic dermatitis - A case report
Abstract
Severe atopic dermatitis (AD) is known to be associated with a risk of lymphoma. We herein report a case of ALK-negative anaplastic large cell lymphoma (ALK-ALCL) complicated by severe AD during treatment with baricitinib, which is an oral, selective, and reversible Janus Kinase (JAK) 1 and 2 inhibitor used in the treatment of AD. Next-generation sequencing (NGS) demonstrated the TP53 p.G266E mutation, suggesting that this was the trigger of the disease and the cause of its refractory course. The JAK/signal transducer and activator of transcription (STAT) pathway is often activated in tumor cells of ALCLs, suggesting that it is a therapeutic target. The causal connection between baricitinib and lymphomagenesis remains unknown; however, this patient developed ALK-ALCL with TP53 mutations during baricitinib treatment.
Keywords: ALK-negative anaplastic large cell lymphoma; TP53 mutation; atopic dermatitis; baricitinib.
Conflict of interest statement
CONFLICT OF INTEREST
The authors declare no conflicts of interest in association with the present study.
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References
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- Bieber T, Katoh N, Simpson EL, et al. Safety of baricitinib for the treatment of atopic dermatitis over a median of 1.6 years and up to 3.9 years of treatment: an updated integrated analysis of eight clinical trials. J Dermatolog Treat. 2023; 34: 2161812. - PubMed
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- Morris SW, Kirstein MN, Valentine MB, et al. Fusion of a kinase gene, ALK, to a nucleolar protein gene, NPM, in non-Hodgkin’s lymphoma. Science. 1994; 263: 1281-1284. - PubMed
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