Desmoglein 3 (DSG3) mRNA (DSG3 mRNA)

Desmoglein 3 (DSG3) mRNA encodes a calcium-dependent transmembrane glycoprotein that is a critical component of desmosomes, the intercellular junctions responsible for maintaining the structural integrity of stratified squamous epithelia (UniProt: P32926). The protein product of this mRNA facilitates cell-cell adhesion by interacting with other desmogleins and desmocollins, effectively anchoring the intermediate filament network to the plasma membrane (NCBI Gene: 1830). DSG3 is clinically significant as the primary autoantigen in Pemphigus Vulgaris, where autoantibodies against the protein lead to the loss of cell adhesion and severe mucosal blistering (PubMed: 15542702). In oncology, DSG3 mRNA is frequently overexpressed in squamous cell carcinomas, particularly in the lung and head and neck, where it promotes tumor cell proliferation and migration (PubMed: 21602877). Furthermore, its high specificity for squamous cell lineages makes it a robust biomarker for differential diagnosis in pulmonary pathology (PubMed: 21602877). Consequently, DSG3 mRNA has emerged as a potential therapeutic target for RNA-based interventions, such as small interfering RNAs (siRNAs), which aim to downregulate its expression to inhibit tumor progression (PubMed: 25670454). Therapeutic development focusing on this mRNA must carefully balance efficacy against the risk of disrupting normal epithelial adhesion in healthy tissues.

Other names

Pemphigus vulgaris antigen mRNAPVA mRNACDHF6 mRNACadherin family member 6 mRNADSG3 transcript

RNA interference-mediated degradation of DSG3 transcripts and inhibition of protein translation