Gene silencing - Plasmid DNA isolation(Mini Prep)

Ⅰ. Introduction 실험 원리

Gene silencing, also known as RNA interference (RNAi), is a biological process in which RNA molecules inhibit gene expression by causing the degradation of specific mRNA molecules. This phenomenon provides a powerful tool for researchers, allowing them to selectively target and silence genes of interest. To study and utilize gene silencing effects, scientists often employ plasmid DNA containing short interference RNA (siRNA) or other RNA constructs. The isolation of plasmid DNA from bacterial cultures is a crucial step in the process of gene silencing experiments, as it allows for the introduction of the plasmid into the target cells through transfection. Plasmids are small, circular pieces of DNA that are distinct from chromosomal DNA and can replicate independently within a host cell. They are commonly used in molecular biology as vectors to deliver foreign genetic material into cells. During plasmid DNA isolation, or mini prep, the aim is to extract and…