UBE2K promotes breast cancer growth by ubiquitinating and degrading STUB1 to regulate the PKA/CREB1 signaling pathway, forming a feedback loop.

Summary: Breast cancer is a major health problem for women around the world. Scientists recently discovered that a specific protein called UBE2K helps breast cancer cells grow and spread. They found that UBE2K destroys another protein (called STUB1), which sets off a chain reaction inside the cell. This chain reaction turns on a switch (called CREB1) that tells the cancer cells to make even more UBE2K. This creates a vicious cycle, or a "feedback loop," that keeps the cancer growing out of control. By understanding this loop, doctors and scientists might be able to create new medicines that target UBE2K to stop breast cancer in its tracks.