The expression of programmed death-ligand 1 and its association with histopathological grade, stage of disease, and occurrence of metastasis in breast cancer

Author:

Pranoto Agung Sindu1,Haryasena Haryasena1,Prihantono Prihantono2,Rahman Septiman1,Sampepajung Daniel1,Indra Indra1,Syamsu Salman Ardy1,Sampepajung Elridho1,Nelwan Berti Julian2,Faruk Muhammad2

Affiliation:

1. , , , Hasanuddin University, , Indonesia

2. , , Hasanuddin University, , Indonesia

Abstract

INTRODUCTION: Programmed death ligand 1 (PD-L1) plays a role in tumor escape and progression by inactivating T lymphocytes. The aim of the study reported here was to determine the relationship between the expression of PD-L1 and histopathological grade, stage of disease, and the occurrence of metastasis in breast cancer. METHODS: The observational cross-sectional study involved analyzing the expression of PD-L1 by immunohistochemistry. RESULTS: PD-LI was expressed in 43 of 60 patients with breast cancer (71.6%), mostly with a moderate histopathological grade (58.3%) and at an advanced stage (50%). Associations between the expression of PD-L1 and histopathological grade (p = 0.011), stage of disease (p = 0.009), and the occurrence of metastasis (p = 0.01) were significant, with an odds ratio of 5. CONCLUSION: The associations between the expression of PD-L1 and histopathological grade, disease stage, and occurrence of metastasis were all significant in cases of breast cancer in the sample. Those findings suggest that the expression of PD-L1 increases the progression of breast cancer.

Publisher

IOS Press

Subject

Cancer Research,Oncology,General Medicine

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