Pannexin 1 induces Rhabdomyosarcoma cell fusion by downregulating APOBEC2.

ABSTRACT: Rhabdomyosarcoma (RMS) is an aggressive cancer thought to arise from impaired myogenesis. This can be substantially overcome by increasing the levels of pannexin 1 (PANX1), a critical component of the myogenic program, but the mechanism involved is unknown. Using RNA-seq, we have previously found that overexpression of PANX1 dramatically reshapes the transcriptomic landscape of RMS including downregulation of a myogenic modulator, APOBEC2 (apolipoprotein B mRNA editing enzyme catalytic subunit 2). Following this clue, we investigated the role of APOBEC2 in the PANX1-mediated suppression of RMS malignancy. Here we show that, using a panel of patient-derived RMS cell lines and tumor specimens, APOBEC2 is expressed in RMS, but that its levels are lower than those in both differentiating myobl

SUBMITTER: Welten A 

PROVIDER: S-EPMC12627423 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature