Dynamic Expression and Functional Implications of the Cell Polarity Gene, Dchs1, During Cardiac Development.

ABSTRACT: Intercellular interactions among cardiac cell populations are essential for cardiac morphogenesis, yet the molecular mechanisms orchestrating these events remain incompletely understood. Dachsous1 (Dchs1), an atypical cadherin linked to mitral valve prolapse, is a core planar cell polarity protein whose function in the developing heart has not been fully elucidated. To address this, we generated a Dchs1-HA knock-in mouse model to define its spatial, temporal, and cellular expression patterns. Using immunohistochemistry, western blotting, and single-cell transcriptomics across developmental stages, we demonstrate that cardiac Dchs1 expression is restricted to non-cardiomyocyte lineages. DCHS1 displays dynamic subcellular localization and tissue organization depending on the developmental ti

SUBMITTER: Byerly K 

PROVIDER: S-EPMC12153708 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature