Chinese Hamster Ovary Cells, often abbreviated as CHO cells, are a type of cell line derived from the ovaries of the Chinese hamster. They are widely used in biological and medical research due to their ability to grow rapidly and produce large quantities of proteins. CHO cells are particularly important in the production of therapeutic proteins, including monoclonal antibodies. These cells are favored in biotechnology because they can be easily manipulated genetically. This allows researchers to modify them for specific purposes, such as enhancing protein production or studying gene function. Their adaptability makes CHO cells a cornerstone in the field of biopharmaceuticals.