scholarly journals HLA Class II Histocompatibility Antigen γ Chain (CD74) Expression Is Associated with Immune Cell Infiltration and Favorable Outcome in Breast Cancer

Cancers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 6179
Author(s):  
Julie B. Noer ◽  
Maj-Lis M. Talman ◽  
José M. A. Moreira

The triple-negative breast cancer (TNBC) subtype, defined as negative for ER, PgR, and HER2, is biologically more aggressive and with a poorer prognosis than the other subtypes, in part due to the lack of suitable targeted therapies. Consequently, identification of any potential novel therapeutic option, predictive and/or prognostic biomarker, or any other relevant information that may impact the clinical management of this group of patients is valuable. The HLA class II histocompatibility antigen γ chain, or cluster of differentiation 74 (CD74), has been associated with TNBCs, and poorer survival. However, discordant results have been reported for immunohistochemical studies of CD74 expression in breast cancer. Here we report validation studies for use of a novel CD74 antibody, UMAb231. We used this antibody to stain a TMA including 640 human breast cancer samples, and found no association with the TNBC subtype, but did find a positive correlation with outcome. We also found associations between CD74 expression and immune cell infiltration, and expression of programmed death ligand 1 (PD-L1). Given that CD74 may play a role in innate immune system responses and the potential of immunotherapy as a viable treatment strategy for TNBCs, CD74 expression may have predictive value for immune checkpoint therapies.

2021 ◽  
Vol 11 ◽  
Author(s):  
Young-Sil An ◽  
Se-Hyuk Kim ◽  
Tae Hoon Roh ◽  
So Hyun Park ◽  
Tae-Gyu Kim ◽  
...  

BackgroundThe purpose of this study was to investigate the correlation between 18F-fluorodeoxyglucose (FDG) uptake and infiltrating immune cells in metastatic brain lesions.MethodsThis retrospective study included 34 patients with metastatic brain lesions who underwent brain 18F-FDG positron emission tomography (PET)/computed tomography (CT) followed by surgery. 18F-FDG uptake ratio was calculated by dividing the standardized uptake value (SUV) of the metastatic brain lesion by the contralateral normal white matter uptake value. We investigated the clinicopathological characteristics of the patients and analyzed the correlation between 18F-FDG uptake and infiltration of various immune cells. In addition, we evaluated immune-expression levels of glucose transporter 1 (GLUT1), hexokinase 2 (HK2), and Ki-67 in metastatic brain lesions.ResultsThe degree of 18F-FDG uptake of metastatic brain lesions was not significantly correlated with clinical parameters. There was no significant relationship between the 18F-FDG uptake and degree of immune cell infiltration in brain metastasis. Furthermore, other markers, such as GLUT1, HK2, and Ki-67, were not correlated with degree of 18F-FDG uptake. In metastatic brain lesions that originated from breast cancer, a higher degree of 18F-FDG uptake was observed in those with high expression of CD68.ConclusionsIn metastatic brain lesions, the degree of 18F-FDG uptake was not significantly associated with infiltration of immune cells. The 18F-FDG uptake of metastatic brain lesions from breast cancer, however, might be associated with macrophage activity.


2014 ◽  
Vol 63 (4) ◽  
pp. 395-406 ◽  
Author(s):  
Shenyou Sun ◽  
Xiaochun Fei ◽  
Yan Mao ◽  
Xiumin Wang ◽  
David H. Garfield ◽  
...  

2017 ◽  
Vol 28 ◽  
pp. i15
Author(s):  
J. Budczies ◽  
B.V. Sinn ◽  
B.M. Pfitzner ◽  
S. Villegas-Angel ◽  
B. Ingold-Heppner ◽  
...  

2021 ◽  
Vol 10 (1) ◽  
pp. 261-272
Author(s):  
Zhi Wang ◽  
Di Wu ◽  
Menglu Dong ◽  
Yu Xia ◽  
Tao Xu

2021 ◽  
Author(s):  
Xiaoli Wang ◽  
Silu Xu ◽  
Lingli Huang ◽  
Lei Wang ◽  
Nan Wu

Abstract To identify molecular features related to immunogenic activity in breast cancer (BC) and provide new targets and directions for BC immunotherapy. We first used ESTIMATE to evaluate the degree of immune cell infiltration of the BC patients in TCGA and METABRIC, and explore the relationship between the degree of immune cell infiltration and prognosis of breast cancer patients. Then, we identified the cancer pathways, proteins, miRNAs related to BC immunogenicity, and predicted miRNAs target genes and identified the pathways related to target genes with KEGG pathway enrichment analysis. We also explored the correlation between PD-L1 expression level and cancer pathways and found that PD-L1 expression showed a positive association with cancer pathways. In this article we have successfully identified several cancer pathways, proteins, miRNAs and their target genes, which could be as promising new target for BC immunotherapy. And PD-L1 blockade therapy may be more effective in BC patients with the activation of some cancer pathways.


PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0204513 ◽  
Author(s):  
Kenichi Harano ◽  
Ying Wang ◽  
Bora Lim ◽  
Robert S. Seitz ◽  
Stephan W. Morris ◽  
...  

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