Abstract A163: Tertiary lymphoid structures: Prognostic significance and relationship with tumor-infiltrating lymphocytes in triple-negative breast cancer

Author(s):  
In Ah Park ◽  
Hee Jin Lee ◽  
In Hye Song ◽  
Joo Young Kim ◽  
Jong Han Yu ◽  
...  
2021 ◽  
Author(s):  
Ana Tečić Vuger ◽  
Robert Šeparović ◽  
Sanda Šitić ◽  
Ljubica Vazdar ◽  
Mirjana Pavlović ◽  
...  

Abstract Aims This study aimed to investigate the association between tumor-infiltrating lymphocytes (TIL) and androgen receptors (AR) and to assess their impact on early triple-negative breast cancer (TNBC) prognosis. Previous studies analyzed only stromal TIL (sTIL) and intratumoral (ITIL), while this study includes an additional spatial analysis for TIL in central tumor (CT) and invasive margin (IM) compartments and correlation with AR expression and overall survival (OS). Methods A retrospective cohort study encompassing 152 early TNBC tissue samples from patients treated at a tertiary oncologic center between 2009 and 2012. TIL and AR were assessed using formalin-fixed paraffin-embedded samples, using hematoxylin-eosin staining and immunohistochemistry. AR-positive tumors were considered those with ≥ 1% nuclear-stained cells. Results High TIL indicators were found to be positive prognostic factors. Although AR was not an independent prognostic factor, its interactions with sTIL and ITIL at IM impacted OS. Positive AR along with high sTIL and ITIL in IM were associated with favorable OS (HR for sTIL 0.22; 95%CI 0.05–0.97; p = 0.045 and HR for ITIL 0.10; 95%CI 0.01–0.78; p = 0.028). Conclusion Spatial morphological analysis of TIL reveals an additional prognostic value when combined with AR status, and shows a clinically significant impact on OS in early TNBC.


2015 ◽  
Vol 69 (5) ◽  
pp. 422-430 ◽  
Author(s):  
Hee Jin Lee ◽  
In Ah Park ◽  
In Hye Song ◽  
Su-Jin Shin ◽  
Joo Young Kim ◽  
...  

BackgroundTumour-infiltrating lymphocytes (TILs) have a strong prognostic significance, particularly in triple-negative breast cancer (TNBC). One important source of TILs in breast cancer is tertiary lymphoid structures (TLSs).ObjectiveTo carry out a histological analysis of surgically resected TNBC to identify the location of TLSs, the relationship between TLSs and TILs and their prognostic significance in TNBC.MethodsWe retrospectively analysed 769 patients with TNBC.ResultsTILs were defined as the percentage of stroma of invasive carcinoma infiltrated by lymphocytes. TLSs were mainly present within adjacent terminal duct lobular units and around in situ components. TNBC with higher levels of TILs showed a higher nuclear grade, lower lymphovascular invasion, less accompanying in situ component, a homogeneous growth pattern, necrosis in invasive areas, low levels of tumour stroma, high levels of peritumoral lymphocytic infiltration and moderate to abundant TLSs in adjacent tissue. TILs, the degree of peritumoral lymphocytic infiltration and adjacent TLSs were prognostic factors for disease-free and overall survival. Although the TIL level did not have a prognostic value in stage I, it added significant prognostic information for stages II and III. Conversely, patients with high levels of TILs did not show prognostic differences according to the pTNM stage. Patients with high levels of TILs (>60%) and moderate to abundant TLSs had significantly better disease-free survival than those with high levels of TILs but none or few TLSs.ConclusionsTLSs are frequently present in TNBC and are closely associated with TILs. TILs provide additional prognostic information in patients with TNBC with a higher pTNM stage.


Author(s):  
H. Kuroda ◽  
T. Jamiyan ◽  
R. Yamaguchi ◽  
A. Kakumoto ◽  
A. Abe ◽  
...  

Abstract Purpose Immune cells such as cytotoxic T cells, helper T cells, B cells or tumor-associated macrophages (TAMs) contribute to the anti-tumor response or pro-tumorigenic effect in triple negative breast cancer (TNBC). The interrelation of TAMs, T and B tumor-infiltrating lymphocytes (TILs) in TNBC has not been fully elucidated. Methods We evaluated the association of tumor-associated macrophages, T and B TILs in TNBC. Results TNBCs with a high CD68+, CD163+ TAMs and low CD4+, CD8+, CD20+ TILs had a significantly shorter relapse-free survival (RFS) and overall survival (OS) than those with low CD68+, CD163+ TAMs and high CD4+, CD8+, CD20+ TILs. TNBCs with high CD68+ TAMs/low CD8+ TILs showed a significantly shorter RFS and OS and a significantly poorer prognosis than those with high CD68+ TAMs/high CD8+ TILs, low CD68+ TAMs/high CD8+ TILs, and low CD68+/low CD8+. TNBCs with high CD163+ TAMs/low CD8+, low CD20 + TILs showed a significantly shorter RFS and OS and a significantly poorer prognosis than those with high CD163+ TAMs/high CD8+ TILs and high CD163+ TAMs /high CD20+ TILs. Conclusions Our study suggests that TAMs further create an optimal tumor microenvironment (TME) for growth and invasion of cancer cells when evasion of immunoreactions due to T and B TILs occurs. In TNBCs, all these events combine to affect prognosis. The process of TME is highly complex in TNBCs and for an improved understanding, larger validation studies are necessary to confirm these findings.


2015 ◽  
Vol 7 (4) ◽  
pp. 232-241
Author(s):  
Koo Si-Lin ◽  
Loh Kiley ◽  
Sulastri Kamis ◽  
Jabed Iqbal ◽  
Rebecca Dent ◽  
...  

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