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Article

ARG1 mRNA Level Is a Promising Prognostic Marker in Head and Neck Squamous Cell Carcinomas

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Department of Genetics and Microbiology, Faculty of Science, Charles University, BIOCEV, 252 50 Vestec, Czech Republic
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Department of Pathology and Molecular Medicine, 2nd Faculty of Medicine, Charles University, 150 06 Prague, Czech Republic
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Department of Mathematical Analysis and Applications of Mathematics, Faculty of Science of the Palacky University in Olomouc, 771 46 Olomouc, Czech Republic
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Department of Otorhinolaryngology and Head and Neck Surgery, 1st Faculty of Medicine, Charles University, University Hospital Motol, 150 06 Prague, Czech Republic
*
Authors to whom correspondence should be addressed.
Academic Editor: Gustavo Baldassarre
Diagnostics 2021, 11(4), 628; https://doi.org/10.3390/diagnostics11040628
Received: 5 March 2021 / Revised: 23 March 2021 / Accepted: 29 March 2021 / Published: 31 March 2021
(This article belongs to the Section Pathology and Molecular Diagnostics)
Head and neck squamous cell carcinomas (HNSCC) can be induced by smoking or alcohol consumption, but a growing part of cases relate to a persistent high-risk papillomavirus (HPV) infection. Viral etiology has a beneficial impact on the prognosis, which may be explained by a specific immune response. Tumor associated macrophages (TAMs) represent the main immune population of the tumor microenvironment with a controversial influence on the prognosis. In this study, the level, phenotype, and spatial distribution of TAMs were evaluated, and the expression of TAM-associated markers was compared in HPV positive (HPV+) and HPV negative (HPV−) tumors. Seventy-three formalin and embedded in paraffin (FFPE) tumor specimens were examined using multispectral immunohistochemistry for the detection of TAM subpopulations in the tumor parenchyma and stroma. Moreover, the mRNA expression of TAM markers was evaluated using RT-qPCR. Results were compared with respect to tumor etiology, and the prognostic significance was evaluated. In HPV− tumors, we observed more pro-tumorigenic M2 in the stroma and a non-macrophage arginase 1 (ARG1)-expressing population in both compartments. Moreover, higher mRNA expression of M2 markers—cluster of differentiation 163 (CD163), ARG1, and prostaglandin-endoperoxide synthase 2 (PTGS2)—was detected in HPV− patients, and of M1 marker nitric oxide synthase 2 (NOS2) in HPV+ group. The expression of ARG1 mRNA was revealed as a negative prognostic factor for overall survival of HNSCC patients. View Full-Text
Keywords: head and neck carcinoma; arginase 1; HPV; prognosis; macrophages head and neck carcinoma; arginase 1; HPV; prognosis; macrophages
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MDPI and ACS Style

Pokrývková, B.; Šmahelová, J.; Dalewská, N.; Grega, M.; Vencálek, O.; Šmahel, M.; Nunvář, J.; Klozar, J.; Tachezy, R. ARG1 mRNA Level Is a Promising Prognostic Marker in Head and Neck Squamous Cell Carcinomas. Diagnostics 2021, 11, 628. https://doi.org/10.3390/diagnostics11040628

AMA Style

Pokrývková B, Šmahelová J, Dalewská N, Grega M, Vencálek O, Šmahel M, Nunvář J, Klozar J, Tachezy R. ARG1 mRNA Level Is a Promising Prognostic Marker in Head and Neck Squamous Cell Carcinomas. Diagnostics. 2021; 11(4):628. https://doi.org/10.3390/diagnostics11040628

Chicago/Turabian Style

Pokrývková, Barbora, Jana Šmahelová, Natálie Dalewská, Marek Grega, Ondřej Vencálek, Michal Šmahel, Jaroslav Nunvář, Jan Klozar, and Ruth Tachezy. 2021. "ARG1 mRNA Level Is a Promising Prognostic Marker in Head and Neck Squamous Cell Carcinomas" Diagnostics 11, no. 4: 628. https://doi.org/10.3390/diagnostics11040628

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