PCDH8 (Protocadherin 8): PCDH8 is a gene that encodes a protein belonging to the protocadherin family, which are cell adhesion molecules crucial for the formation and maintenance of neural networks. It plays a vital role in synaptic plasticity, which is important for learning and memory. Dysregulation of PCDH8 has been associated with neurodevelopmental disorders and is also under investigation for its potential role in tumor suppression due to its involvement in cell-cell communication and nervous system signaling.