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     The image is immunohistochemistry of paraffin-embedded Human colorectal cancer tissue using P05885(IGSF11 Antibody) at dilution 1/25. (Original magnification: ×200)    

  
  

The immunoglobulin superfamily member 11 (IGSF11) is a transmembrane protein primarily involved in cell-cell adhesion and immune regulation. It shares structural homology with other immunoglobulin-like proteins, featuring extracellular immunoglobulin (Ig) domains that mediate homophilic or heterophilic interactions. IGSF11 is expressed in various tissues, including the immune system, brain, and epithelial cells, and plays roles in neuronal development, immune synapse formation, and epithelial barrier maintenance. Its dysregulation has been implicated in autoimmune disorders, neurodevelopmental conditions, and cancer metastasis.

Antibodies targeting IGSF11 are valuable tools for studying its expression, localization, and functional mechanisms. They enable applications like immunohistochemistry, flow cytometry, and Western blotting to map tissue distribution or quantify protein levels. In research, IGSF11 antibodies have helped uncover its role in T-cell activation, tumor immune evasion, and cell migration pathways. Some studies suggest IGSF11 may interact with checkpoint molecules like PD-1. positioning it as a potential therapeutic target in cancer immunotherapy. However, its precise signaling pathways and disease associations remain under investigation, necessitating further validation of antibody specificity and functional studies. Commercial IGSF11 antibodies are typically raised against extracellular domains to facilitate detection in live cells or intact tissues.