This literature review focuses on the function of p-element-induced wimpy testis (PIWI)-interacting RNAs (piRNAs) in CNS disorders and their potential role in brain conditioning. While piRNAs have been widely investigated in germ cells, their role in brain function and neurological conditions remains unknown. This review gives an overview of piRNAs, their synthesis, and their interactions with PIWI proteins. It explores the potential function of piRNAs in gene regulation, chromatin remodeling, and interactions with other small RNAs. This review also investigates the role of piRNAs in diverse pathologies such as cancer, cardiovascular disease, reproductive system defects, and neurological diseases. In the setting of neurodegenerative disorders, deregulation of piRNA expression has been linked to Alzheimer's, Parkinson's, and Huntington's diseases, indicating their potential as therapeutic targets. The article continues to look at the role of piRNAs in the central nervous system, including their functions in inflammation, apoptosis, and neurogenesis. Overall, the study emphasizes the significance of further research to fully understand the function of piRNAs in brain conditioning and their therapeutic potential.
