To further investigate the relationship between ERVWE1 and HTR1B in schizophrenia, we transfected ERVWE1 into the human neuroblastoma cell line SH-SY5Y (Additional file 1: Fig. S3A, B), which is commonly used to study neuropsychiatric disorders [56], to gain a deeper understanding of their association. The gene discussed is ERVW-1; the disease is schizophrenia.