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The Translational Role of MUC8 in Salivary Glands: A Potential Biomarker for Salivary Stone Disease?
Mucin (MUC) 8 has been shown to play an important role in respiratory disease and inflammatory responses. In the present study, we investigated the question of whether MUC8 is also produced and secreted by salivary glands and whether it may also play a role in the oral cavity in the context of infla...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8700234/ https://www.ncbi.nlm.nih.gov/pubmed/34943565 http://dx.doi.org/10.3390/diagnostics11122330 |
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author | Schicht, Martin Reichle, Adrian Schapher, Mirco Garreis, Fabian Kleinsasser, Benedikt Aydin, Malik Sahin, Afsun Iro, Heinrich Paulsen, Friedrich |
author_facet | Schicht, Martin Reichle, Adrian Schapher, Mirco Garreis, Fabian Kleinsasser, Benedikt Aydin, Malik Sahin, Afsun Iro, Heinrich Paulsen, Friedrich |
author_sort | Schicht, Martin |
collection | PubMed |
description | Mucin (MUC) 8 has been shown to play an important role in respiratory disease and inflammatory responses. In the present study, we investigated the question of whether MUC8 is also produced and secreted by salivary glands and whether it may also play a role in the oral cavity in the context of inflammatory processes or in the context of salivary stone formation. Tissue samples from parotid and submandibular glands of body donors (n = 6, age range 63–88 years), as well as surgically removed salivary stones from patients (n = 38, age range 48–72 years) with parotid and submandibular stone disease were immunohistochemically analyzed targeting MUC8 and TNFα. The presence of MUC8 in salivary stones was additionally analyzed by dot blot analyses. Moreover, saliva samples from patients (n = 10, age range 51–72 years), who had a salivary stone of the submandibular gland on one side were compared with saliva samples from the other “healthy” side, which did not have a salivary stone, by ELISA. Positive MUC8 was detectable in the inter- and intralobular excretory ducts of both glands (parotid and submandibular). The glandular acini showed no reactivity. TNFα revealed comparable reactivity to MUC8 in the glandular excretory ducts and also did not react in glandular acini. Salivary stones demonstrated a characteristic distribution pattern of MUC8 that differed between parotid and submandibular salivary stones. The mean MUC8 concentration was 71.06 ng/mL in female and 33.21 ng/mL in male subjects (p = 0.156). Saliva from the side with salivary calculi contained significantly (15-fold) higher MUC8 concentration levels than saliva from the healthy side (p = 0.0005). MUC8 concentration in salivary stones varied from 4.59 ng/mL to 202.83 ng/mL. In females, the MUC8 concentration in salivary stones was significantly (2.3-fold) higher, with an average of 82.84 ng/mL compared to 25.27 ng/mL in male patients (p = 0.034). MUC8 is secreted in the excretory duct system of salivary glands and released into saliva. Importantly, MUC8 salivary concentrations vary greatly between individuals. In addition, the MUC8 concentration is gender-dependent (♀ > ♂). In the context of salivary stone diseases, MUC8 is highly secreted in saliva. The findings support a role for MUC8 in the context of inflammatory events and salivary stone formation. The findings allow conclusions on a gender-dependent component of MUC8. |
format | Online Article Text |
id | pubmed-8700234 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87002342021-12-24 The Translational Role of MUC8 in Salivary Glands: A Potential Biomarker for Salivary Stone Disease? Schicht, Martin Reichle, Adrian Schapher, Mirco Garreis, Fabian Kleinsasser, Benedikt Aydin, Malik Sahin, Afsun Iro, Heinrich Paulsen, Friedrich Diagnostics (Basel) Article Mucin (MUC) 8 has been shown to play an important role in respiratory disease and inflammatory responses. In the present study, we investigated the question of whether MUC8 is also produced and secreted by salivary glands and whether it may also play a role in the oral cavity in the context of inflammatory processes or in the context of salivary stone formation. Tissue samples from parotid and submandibular glands of body donors (n = 6, age range 63–88 years), as well as surgically removed salivary stones from patients (n = 38, age range 48–72 years) with parotid and submandibular stone disease were immunohistochemically analyzed targeting MUC8 and TNFα. The presence of MUC8 in salivary stones was additionally analyzed by dot blot analyses. Moreover, saliva samples from patients (n = 10, age range 51–72 years), who had a salivary stone of the submandibular gland on one side were compared with saliva samples from the other “healthy” side, which did not have a salivary stone, by ELISA. Positive MUC8 was detectable in the inter- and intralobular excretory ducts of both glands (parotid and submandibular). The glandular acini showed no reactivity. TNFα revealed comparable reactivity to MUC8 in the glandular excretory ducts and also did not react in glandular acini. Salivary stones demonstrated a characteristic distribution pattern of MUC8 that differed between parotid and submandibular salivary stones. The mean MUC8 concentration was 71.06 ng/mL in female and 33.21 ng/mL in male subjects (p = 0.156). Saliva from the side with salivary calculi contained significantly (15-fold) higher MUC8 concentration levels than saliva from the healthy side (p = 0.0005). MUC8 concentration in salivary stones varied from 4.59 ng/mL to 202.83 ng/mL. In females, the MUC8 concentration in salivary stones was significantly (2.3-fold) higher, with an average of 82.84 ng/mL compared to 25.27 ng/mL in male patients (p = 0.034). MUC8 is secreted in the excretory duct system of salivary glands and released into saliva. Importantly, MUC8 salivary concentrations vary greatly between individuals. In addition, the MUC8 concentration is gender-dependent (♀ > ♂). In the context of salivary stone diseases, MUC8 is highly secreted in saliva. The findings support a role for MUC8 in the context of inflammatory events and salivary stone formation. The findings allow conclusions on a gender-dependent component of MUC8. MDPI 2021-12-10 /pmc/articles/PMC8700234/ /pubmed/34943565 http://dx.doi.org/10.3390/diagnostics11122330 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Schicht, Martin Reichle, Adrian Schapher, Mirco Garreis, Fabian Kleinsasser, Benedikt Aydin, Malik Sahin, Afsun Iro, Heinrich Paulsen, Friedrich The Translational Role of MUC8 in Salivary Glands: A Potential Biomarker for Salivary Stone Disease? |
title | The Translational Role of MUC8 in Salivary Glands: A Potential Biomarker for Salivary Stone Disease? |
title_full | The Translational Role of MUC8 in Salivary Glands: A Potential Biomarker for Salivary Stone Disease? |
title_fullStr | The Translational Role of MUC8 in Salivary Glands: A Potential Biomarker for Salivary Stone Disease? |
title_full_unstemmed | The Translational Role of MUC8 in Salivary Glands: A Potential Biomarker for Salivary Stone Disease? |
title_short | The Translational Role of MUC8 in Salivary Glands: A Potential Biomarker for Salivary Stone Disease? |
title_sort | translational role of muc8 in salivary glands: a potential biomarker for salivary stone disease? |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8700234/ https://www.ncbi.nlm.nih.gov/pubmed/34943565 http://dx.doi.org/10.3390/diagnostics11122330 |
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