Clinical significance of tumor-infiltrating lymphocytes in neoplastic progression and lymph node metastasis of human breast cancer |
| |
| Authors: | Sheu Bor-Ching Kuo Wen-Hung Chen Ruey-Jien Huang Su-Cheng Chang King-Jen Chow Song-Nan |
| |
| Affiliation: | aDepartment of Obstetrics & Gynecology, College of Medicine and The Hospital, National Taiwan University, Taipei 100, Taiwan;bDepartment of Surgery, College of Medicine and The Hospital, National Taiwan University, Taipei 100, Taiwan;cDepartment of Obstetrics and Gynecology, Far Eastern Memorial Hospital, Taipei 220, Taiwan |
| |
| Abstract: | To investigate the clinical significance of tumor-infiltrating lymphocytes (TILs) within the tumor milieu, we quantitatively measured and compared the subpopulations of TILs in 24 patients with stage I–III breast carcinoma. Peripheral blood mononuclear cells (PBMCs), normal breast parenchyma-infiltrating lymphocytes (NILs), and TILs were isolated from tissue specimens and quantified by flow cytometry. The results showed that increased proportion of CD8+ T cells, with decreased proportion of CD4+ T cells, was significant in gated CD3+ TILs as compared to autologous NILs or PBMCs (P < 0.001). The tumor-infiltrating CD8+ T cells significantly increased with stage progression, reflected in a more strongly decreased CD4/CD8 percentage (P = 0.003). The CD4/CD8 percentage of TILs was strongly correlated with lymphovascular permeation and subsequent lymph node metastasis (P < 0.001). Increased percentages of tumor-infiltrating CD8+ T cells with decreased CD4/CD8 percentages are of prognostic importance for cancer progression in human breast cancer. |
| |
| Keywords: | Breast cancer Tumor-infiltrating lymphocytes CD4/CD8 percentage Lymph node metastasis |
| 本文献已被 ScienceDirect PubMed 等数据库收录！ |
|
