T cell signaling pathways

T cell signaling pathways are how T cells, a type of immune cell, detect and respond to threats like infections or cancer. When a T cell recognizes a danger signal through its receptor, it activates a series of internal signals involving molecules like kinases and transcription factors. This cascade leads to T cell activation, helping it multiply, produce important substances, and coordinate immune responses. These pathways ensure T cells respond specifically and effectively, mobilizing the immune system to eliminate harmful agents while maintaining balance to prevent overreaction.