Lymphocyte infiltration in breast cancer: A promising prognostic indicator

被引:0
作者
Obeagu, Emmanuel Ifeanyi [1 ]
Obeagu, Getrude Uzoma [2 ]
机构
[1] Kampala Int Univ, Dept Med Lab Sci, POB 20000, Ishaka, Uganda
[2] Kampala Int Univ, Sch Nursing Sci, Ishaka, Uganda
关键词
breast cancer; immunotherapy; prognosis; tumor microenvironment; tumor-infiltrating lymphocytes (TILs); TUMOR; CELLS;
D O I
10.1097/MD.0000000000040845
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Breast cancer is a leading cause of cancer-related mortality among women worldwide, necessitating the identification of reliable prognostic markers to guide treatment and improve patient outcomes. Recent research has highlighted the prognostic significance of tumor-infiltrating lymphocytes (TILs) in breast cancer, with high levels of TILs being associated with improved survival rates and better responses to therapy. This review delves into the mechanisms driving lymphocyte infiltration, its clinical implications, and the potential for TILs to serve as predictive biomarkers in breast cancer management. The presence of TILs within the tumor microenvironment reflects a dynamic interplay between tumor cells and the host immune system. Chemokine signaling, antigen presentation, and immune checkpoint interactions are key mechanisms that facilitate the recruitment and activity of lymphocytes at the tumor site. Clinically, the density of TILs varies across breast cancer subtypes, with the most significant prognostic value observed in triple-negative and HER2-positive breast cancers. High TIL levels correlate with improved overall survival and disease-free survival, underscoring their potential as a valuable prognostic indicator. Therapeutically, the role of TILs has opened new avenues in breast cancer treatment, particularly in the realm of immunotherapy. Immune checkpoint inhibitors, adoptive cell therapy, and combination therapies leveraging TILs are being explored to enhance antitumor responses. As research progresses, the integration of TIL assessment into routine clinical practice could revolutionize personalized treatment strategies, ultimately improving prognostic accuracy and patient outcomes in breast cancer care.
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页数:7
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