Editorial for Cribriform architecture prostatic adenocarcinoma in needle biopsy is a strong independent predictor for lymph node metastases in radical prostatectomy (M. Downes et al.) and Ductal variant prostate carcinoma is associated with a significantly shorter metastasis-free survival (K. Chow et al.)

2021 ◽  
Author(s):  
Eva Compérat
Keyword(s):  
Lymph Node ◽  
Radical Prostatectomy ◽  
Prostate Carcinoma ◽  
Lymph Node Metastases ◽  
Needle Biopsy ◽  
Independent Predictor ◽  
Prostatic Adenocarcinoma ◽  
Free Survival ◽  
Node Metastases ◽  
Strong Independent Predictor

scholarly journals Tumour-Infiltrating Lymphocytes (TILs) and PD-L1 Expression Correlate with Lymph Node Metastasis, High-Grade Transformation and Shorter Metastasis-Free Survival in Patients with Acinic Cell Carcinoma (AciCC) of the Salivary Glands

Cancers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 965
Author(s):  
Selina Hiss ◽  
Markus Eckstein ◽  
Patricia Segschneider ◽  
Konstantinos Mantsopoulos ◽  
Heinrich Iro ◽  
...  
Keyword(s):  
Lymph Node ◽  
Lymph Node Metastasis ◽  
Lymph Node Metastases ◽  
Immune Cell ◽  
High Grade ◽  
Free Survival ◽  
Node Metastasis ◽  
Node Metastases ◽  
High Grade Transformation ◽  
Infiltrating Lymphocytes

Objectives: The aim of this study was to assess the number of tumour-infiltrating lymphocytes (TILs) and the expression of Programmed Cell Death 1 Ligand 1 (PD-L1) in Acinic Cell Carcinoma (AciCC) of the salivary glands, to enable a correlation with clinico-pathological features and to analyse their prognostic impact. Methods: This single centre retrospective study represents a cohort of 36 primary AciCCs with long-term clinical follow-up. Immunohistochemically defined immune cell subtypes, i.e., those expressing T-cell markers (CD3, CD4 and CD8) or a B-cell marker (CD20) were characterized on tumour tissue sections. The number of TILs was quantitatively evaluated using software for digital bioimage analysis (QuPath). PD-L1 expression on the tumour cells and on immune cells was assessed immunohistochemically employing established scoring criteria: tumour proportion score (TPS), Ventana immune cell score (IC-Score) and combined positive score (CPS). Results: Higher numbers of tumour-infiltrating T- and B- lymphocytes were significantly associated with high-grade transformation. Furthermore, higher counts of T-lymphocytes correlated with node-positive disease. There was a significant correlation between higher levels of PD-L1 expression and lymph node metastases as well as the occurrence of high-grade transformation. Moreover, PD-L1 CPS was associated with poor prognosis regarding metastasis-free survival (p = 0.049). Conclusions: The current study is the first to demonstrate an association between PD-L1 expression and lymph node metastases as well as grading in AciCCs. In conclusion, increased immune cell infiltration of T and B cells as well as higher levels of PD-L1 expression in AciCC in association with high-grade transformation, lymph node metastasis and unfavourable prognosis suggests a relevant interaction between tumour cells and immune cell infiltrates in a subset of AciCCs, and might represent a rationale for immune checkpoint inhibition.

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