Cooperative role of distinctive TP53 and PTEN combined loss in the peripheral T cell lymphoma-GATA3 molecular subgroup.

ABSTRACT: Peripheral T cell lymphoma (PTCL) is a heterogeneous group of postthymic T cell neoplasms, with ~40% classified as PTCL-not otherwise specified (PTCL-NOS). PTCL-GATA3, a molecularly defined subtype, associated with T helper 2 (T_H2)-like differentiation and poor prognosis, has frequent co-occurrence of TP53 loss/mutation and heterozygous PTEN loss. CD4+ T cell conditional mouse models with Trp53 mutation/deletion and Pten loss demonstrated mature T cell lymphomas (mTCLs) with T_H2-like transcriptomic and immunophenotypic profiles. Molecular studies revealed that codeletion of Trp53/Pten induced T cell receptor and Janus kinase-signal transducer and activator of transcription signaling, promoting T_H2 differentiation while inh

SUBMITTER: Lone WG 

PROVIDER: S-EPMC12533597 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature