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Founded: 1954
ISSN 0028-2685
ISSN 1338-4317 (online)

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neo_2020_190601N478

Title: Heat shock protein gp96 and CD4+ and CD8+ T-lymphocytes expression as prognostic factors in various molecular types of invasive breast carcinoma
Author: P. Radolovic, D. Grebic, E. Mustac, I. Sebaher, J. Mamic, W. M. Miletic

Abstract: Breast carcinoma shows extensive clinical and molecular heterogenicity. Glycoprotein gp96 is considered a negative prognostic and predictive factor. Controversy exists over the prognostic role of tumor lymphocytic infiltrates. Goal of this study is to illustrate differences in gp96 and CD4+ and CD8+ T-lymphocytes expression among all immunohistochemical groups of breast carcinoma in relation to the clinical course and outcome of the disease. A retrospective observational study was conducted through processing and analysis of 152 female patient tissue samples previously classified by immunohistochemistry. After immunohistochemical processing, the samples were microscopically analyzed and positive cells were manually calculated in entire biopsy sample for each patient. In the group of patients with triple negative carcinoma, a significantly higher number of CD4 positive cells in patients with no local recurrence was proven, as well as a significant correlation between a smaller number of CD4 positive cells with a lethal outcome. In the group of patients with Luminal B HER2+ carcinoma, a significantly higher proportion of CD8+ cells in patients with local recurrence was demonstrated. The highest glycoprotein gp96 expression was demonstrated in the group of patients with triple negative carcinoma, while the lowest in patients with Luminal A and Luminal B HER2- carcinoma. This study has shown significantly higher gp96 expression and higher extent of tumor lymphocytic infiltrate in more malignant types of breast carcinoma and represents a significant contribution in affirmation of prognostic role of these variables.

Keywords: gp96; immunohistochemistry; breast cancer; prognosis; T-lymphocytes
Published online: 22-Jan-2020
Year: , Volume: , Issue: Page From: , Page To:
doi:10.4149/neo_2020_190601N478


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