Plectin (PLEC) (PLEC)

Plectin is a high-molecular-weight cytolinker protein encoded by the PLEC gene that is essential for maintaining the structural integrity of cells and tissues. It functions by cross-linking intermediate filaments to each other and anchoring them to the plasma membrane, particularly at hemidesmosomes and desmosomes, as well as to the nuclear envelope and other cytoskeletal elements (UniProt P17661). Mutations in PLEC lead to a group of rare genetic disorders known as epidermolysis bullosa simplex (EBS), which are characterized by skin fragility and can be associated with muscular dystrophy or pyloric atresia (Winter & Wiche, 2013). Beyond its structural role, plectin is increasingly recognized as a biomarker in oncology; specifically, plectin-1 is mislocalized to the cell surface in pancreatic cancer cells, providing a unique target for diagnostic imaging and targeted therapies (Kelly et al., 2008). Therapeutic approaches targeting PLEC mRNA, such as siRNA or antisense oligonucleotides, are being explored to treat specific genetic variants or to inhibit the growth and metastasis of plectin-expressing tumors (Bolling et al., 2014). Because plectin is expressed in many tissues, including skin, muscle, and nerve, therapeutic strategies must carefully manage off-target effects to avoid compromising tissue stability.

Other names

Plectin-1EBS1PCNPLTNHemidesmosomal protein 1HD1

Targeting of mRNA via RNA interference or antisense oligonucleotides to modulate protein expression, or utilizing plectin-binding peptides for targeted drug delivery.