The Immune Microenvironment in Young Patients with Triple Negative Breast Cancer

Purpose: Triple negative breast cancers (TNBC) comprise 15 –20% of breast cancers and are associated with adverse outcomes; the prognosis for younger women is worse [1,2]. Tumour-infiltrating lymphocytes (TILs) significantly correlate with improved survival in many cancers [3]. Conversely, tumour cell expression of PD-L1 is associated with T-cell exhausti on and is commonly a negative prognostic marker [4]. Mechanisms suppressing the immune response in TNBC remain unclear.
Source: Clinical Oncology - Category: Radiology Authors: Source Type: research