Studying the Senescent T Cell Features and Its Relationship with the Chemotherapy Efficacy in Young TNBC

"1. Participants were required to receive 6 cycles of TEC/TAC neoadjuvant chemotherapy, and radical mastectomy was required after chemotherapy.~2. 5ml peripheral venous blood was collected before chemotherapy, after 2 cycles of chemotherapy, before surgery, and six months after surgery.~3. Clinicopathological data, chemotherapy-related adverse events and prognostic information of patients should be collected during the study."