Prognostic analysis of smoldering ATLL with skin eruptions based on genomic aberrations

Patients with smoldering ATLL often present with a skin eruption due to skin infiltration of ATLL cells. Although skin eruption type is known to be associated with prognosis based on its pattern, it is unknown why different types of skin eruptions are associated with different prognoses. Genomic ana...

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Published inJournal of dermatological science Vol. 109; no. 2; pp. 80 - 88
Main Authors Mochida, Kosuke, Nakahata, Shingo, Suzuki, Yutaka, Inoue, Kentaro, Moriguchi, Sayaka, Yamashita, Atsushi, Amano, Masahiro, Morishita, Kazuhiro
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 01.02.2023
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Summary:Patients with smoldering ATLL often present with a skin eruption due to skin infiltration of ATLL cells. Although skin eruption type is known to be associated with prognosis based on its pattern, it is unknown why different types of skin eruptions are associated with different prognoses. Genomic analysis of patients with skin eruptions of smoldering ATLL will be performed to determine the mechanism of ATLL development and its association with prognosis. DNA from skin biopsy specimens was used for targeted sequencing of 280 genes to examine the association between genomic variation and prognosis. Due to the small number of smoldering ATLL patients (27 cases), we could not find a clear relationship between skin eruption and prognosis in this study. Genomic analysis identified 247 genomic variants (108 genes), with an average of 9.2 variants and 3.2 variants as driver genes. Pathway analysis of the driver genes showed activation of the pathway associated with HTLV-1 infection, as well as activation of the signaling pathway observed throughout ATLL. Furthermore, multivariate analysis identified age>70 years and STAT3 mutation as prognostic risk factors and TBL1XR1 mutation as a risk factor for progression-free survival. Although the small number of patient samples did not allow us to determine a prognostic association with skin eruption, STAT3 mutation was identified as a prognostic risk factor for smoldering ATLL with skin eruption. Further studies are needed to increase the number of patients with this disease. •No correlation between the prognosis and the type of skin lesions in smoldering ATLL.•STAT3 mutation and over 70 y/o as prognostic risk in smoldering ATLL with skin rash.•TBL1XR1 mutation as a risk factor for PFS in smoldering ATLL with skin rash.•Activation of the pathway associated with HTLV-1 infection in smoldering ATLL with skin rash.
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ISSN:0923-1811
1873-569X
DOI:10.1016/j.jdermsci.2023.02.001