scholarly journals Tumor microenvironment in triple-negative breast cancer: the correlation of tumor-associated macrophages and tumor-infiltrating lymphocytes

2021 ◽  
Author(s):  
H. Kuroda ◽  
T. Jamiyan ◽  
R. Yamaguchi ◽  
A. Kakumoto ◽  
A. Abe ◽  
...  
Keyword(s):  
Breast Cancer ◽  
T Cells ◽  
Tumor Microenvironment ◽  
Triple Negative Breast Cancer ◽  
Triple Negative ◽  
Cytotoxic T Cells ◽  
Tumor Infiltrating Lymphocytes ◽  
Tumor Associated Macrophages ◽  
Free Survival ◽  
Infiltrating Lymphocytes

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.

scholarly journals Tumor-infiltrating lymphocytes and CD8+ T cells predict survival of triple-negative breast cancer

2019 ◽  
Vol 145 (12) ◽  
pp. 3105-3114 ◽  
Author(s):  
H. Vihervuori ◽  
T. A. Autere ◽  
H. Repo ◽  
S. Kurki ◽  
L. Kallio ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cell Proliferation ◽  
T Cells ◽  
Inflammatory Response ◽  
Triple Negative Breast Cancer ◽  
Prognostic Value ◽  
Triple Negative ◽  
Tumor Infiltrating Lymphocytes ◽  
Cancer Cell Proliferation ◽  
Infiltrating Lymphocytes

Abstract Purpose Tumor inflammatory response was evaluated as a prognostic feature in triple-negative breast cancer (TNBC) and compared with the clinical prognosticators of breast cancer and selected biomarkers of cancer cell proliferation. Methods TNBC patients (n = 179) with complete clinical data and up to 18-year follow-up were obtained from Auria biobank, Turku University Hospital, Turku, Finland. Tumor-infiltrating lymphocytes (TILs) and several subtypes of inflammatory cells detected with immunohistochemistry were evaluated in different tumor compartments in full tissue sections and tissue microarrays. Results Deficiency of stromal TILs and low number of CD8+ T cells independently predicted mortality in TNBC (HR 2.4, p 0.02 and HR 2.1, p 0.02, respectively). Each 10% decrease in stromal TILs resulted in 20% increased risk of mortality. An average of 13.2-year survival difference was observed between the majority (> 75%) of patients with low (< 14% of TILs) vs high (≥ 14% of TILs) frequency of CD8+ T cells. The prognostic value of TILs and CD8+ T cells varied when evaluated in different tumor compartments. TILs and CD8+ T cells were significantly associated with Securin and Separase, essential regulators of metaphase–anaphase transition of the cell cycle. Discussion TILs and CD8+ T cells provide additional prognostic value to the established clinical prognostic markers in TNBC. However, possible clinical applications would still benefit from systematic guidelines for evaluating tumor inflammatory response. Increasing understanding on the interactions between the regulation of cancer cell proliferation and inflammatory response may in future advance treatment of TNBC.

Prognostic Value of Tumor-Infiltrating Lymphocytes in Triple-Negative Breast Cancer

2015 ◽  
Vol 7 (4) ◽  
pp. 232-241
Author(s):  
Koo Si-Lin ◽  
Loh Kiley ◽  
Sulastri Kamis ◽  
Jabed Iqbal ◽  
Rebecca Dent ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Triple Negative Breast Cancer ◽  
Prognostic Value ◽  
Triple Negative ◽  
Tumor Infiltrating Lymphocytes ◽  
Infiltrating Lymphocytes

scholarly journals Immunity and cancer: role of tumor-infiltrating lymphocytes in triple-negative breast cancer

2021 ◽  
Vol 49 (1) ◽  
pp. 20-28
Author(s):  
Ana Tečić-Vuger ◽  
◽  
Robert Šeparović ◽  
Ljubica Vazdar ◽  
Mirjana Pavlović ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Triple Negative Breast Cancer ◽  
Triple Negative ◽  
Tumor Infiltrating Lymphocytes ◽  
Infiltrating Lymphocytes

scholarly journals Immunotherapeutic Approaches in Triple-Negative Breast Cancer: State of the Art and Future Perspectives

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Karima Oualla ◽  
Loay Kassem ◽  
Lamiae Nouiakh ◽  
Lamiae Amaadour ◽  
Zineb Benbrahim ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Clinical Trials ◽  
Triple Negative Breast Cancer ◽  
Triple Negative ◽  
Growth Factor Receptor ◽  
Tumor Infiltrating Lymphocytes ◽  
Standard Of Care ◽  
Breast Cancers ◽  
Poor Outcomes ◽  
Infiltrating Lymphocytes

Triple-negative breast cancer (TNBC) is characterized by the absence of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2). It accounts for 15%–20% of all breast cancers and is associated with an aggressive evolution and poor outcomes with the majority of recurrences and deaths occurring in the first 5 years. Chemotherapy remains the mainstay of treatment in the absence of effective targets, but the good understanding of immune tumor microenvironment, the identification of immune-related targets, and the role of tumor-infiltrating lymphocytes (TILs) in TNBC has allowed to develop promising immunotherapeutic strategies for this unique subset of breast cancer. Recently, immunotherapy is being extensively explored in TNBC and clinical trials have shown promising results. In this article, we tried to explain the rationale and mechanisms of targeting the immune system in TNBC, to report the results from recent clinical trials that put immunotherapy as a new standard of care in TNBC in addition to ongoing trials and future directions in the next decade.

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