SLC7A11 (Solute Carrier Family 7 Member 11): SLC7A11 is a key component of the xCT transporter system, responsible for exchanging extracellular cystine with intracellular glutamate. This exchange is vital for maintaining intracellular glutathione levels, which protect cells against oxidative stress. Overexpression of SLC7A11 has been linked to enhanced survival of cancer cells under oxidative conditions, making it an important focus in cancer therapy research.