Used for the quantitative determination of Human Cyclin D1 in biological samples such as serum, plasma, and cell culture supernatants. This ELISA kit is widely applied in cancer research, particularly in studies related to cell cycle regulation, tumor progression, and oncogenesis. Cyclin D1 plays a key role in the transition from G1 to S phase, and its overexpression is associated with various malignancies including breast cancer, lymphoma, and melanoma. The kit enables researchers to monitor Cyclin D1 levels in experimental models, assess the impact of therapeutic agents on cell cycle proteins, and investigate mechanisms of cell proliferation and apoptosis. It is a valuable tool in molecular and cellular biology research settings.