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     Black line: Control Antigen (100 ng);Purple line: Antigen (10ng); Blue line: Antigen (50 ng); Red line:Antigen (100 ng)    

  
  

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     Immunohistochemical analysis of paraffin-embedded human stomach tissues using CTNNA1 mouse mAb with DAB staining.    

  
  

The CTNNA1 antibody targets α-catenin, a protein encoded by the CTNNA1 gene, which plays a critical role in cell-cell adhesion and cytoskeletal organization. As a key component of adherens junctions, α-catenin links cadherin receptors to the actin cytoskeleton via β-catenin, helping maintain epithelial integrity and tissue architecture. CTNNA1 dysfunction is implicated in cancers, particularly diffuse gastric and lobular breast cancers, where loss-of-function mutations or reduced expression disrupt cell adhesion, promoting invasiveness and metastasis. Additionally, CTNNA1 variants are associated with hereditary cardiomyopathy, such as arrhythmogenic right ventricular cardiomyopathy (ARVC), highlighting its role in cardiac cell adhesion and mechanotransduction.

CTNNA1 antibodies are widely used in research to study protein expression, localization, and interactions in normal and pathological states. They enable detection via techniques like Western blot, immunofluorescence, and immunohistochemistry, aiding in the identification of adhesion defects in cancer or heart disease models. Recent studies also explore CTNNA1's tumor-suppressive functions and its potential as a biomarker for disease progression. However, antibody specificity remains a challenge, requiring validation in knockout models to ensure accurate detection. Ongoing research continues to unravel CTNNA1's dual roles in adhesion signaling and disease, emphasizing its therapeutic and diagnostic relevance.