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The Translational Role of MUC8 in Salivary Glands: A Potential Biomarker for Salivary Stone Disease? Diagnostics (Basel) 2021; 11:diagnostics11122330. [PMID: 34943565 PMCID: PMC8700234 DOI: 10.3390/diagnostics11122330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/07/2021] [Accepted: 12/07/2021] [Indexed: 11/17/2022] Open
Abstract
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.
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Cha HJ, Song KS. Effect of MUC8 on Airway Inflammation: A Friend or a Foe? J Clin Med 2018; 7:jcm7020026. [PMID: 29415487 PMCID: PMC5852442 DOI: 10.3390/jcm7020026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 01/25/2018] [Accepted: 01/25/2018] [Indexed: 11/16/2022] Open
Abstract
In this review, we compile identifying molecular mechanisms of MUC8 gene expression and studies characterizing the physiological functions of MUC8 in the airway and analyzing how altered MUC8 gene expression in the lung is affected by negative regulators.
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Affiliation(s)
- Hee-Jae Cha
- Department of Parasitology and Genetics, Kosin University College of Medicine, 34 Amnam-dong, Seo-gu, Busan 49267, Korea.
| | - Kyoung Seob Song
- Department of Physiology, Kosin University College of Medicine, 34 Amnam-dong, Seo-gu, Busan 49267, Korea.
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Woo YM, Shin Y, Hwang JA, Hwang YH, Lee S, Park EY, Kong HK, Park HC, Lee YS, Park JH. Epigenetic silencing of the MUPCDH gene as a possible prognostic biomarker for cyst growth in ADPKD. Sci Rep 2015; 5:15238. [PMID: 26463459 PMCID: PMC4604459 DOI: 10.1038/srep15238] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 08/28/2015] [Indexed: 11/09/2022] Open
Abstract
Although autosomal dominant polycystic kidney disease (ADPKD) is a common genetic disease, and is characterized by the formation of multiple fluid-filled cysts, which results in renal failure, early diagnosis and treatment of ADPKD have yet to be defined. Herein, we observed that the promoter region of the gene encoding mucin-like protocadherin (MUPCDH) was hypermethylated in the renal tissue of patients with ADPKD compared to non-ADPKD controls. Inversely, MUPCDH was significantly repressed in ADPKD, especially in cyst-lining cells. Our results indicate that aberrant methylation of MUPCDH promoter CpG islands may be negatively correlated with reduced expression level of MUPCDH and that this contributes to abnormal cell proliferation in ADPKD. It suggests that methylation status of MUPCDH promoter can be used as a novel epigenetic biomarker and a therapeutic target in ADPKD.
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Affiliation(s)
- Yu Mi Woo
- Department of Biological Science, Sookmyung Women's University, Seoul, 140-742, Korea
| | - Yubin Shin
- Department of Biological Science, Sookmyung Women's University, Seoul, 140-742, Korea
| | - Jung-Ah Hwang
- Branch of Cancer Genomics, Research Institute, National Cancer Center, Goyang-si, Gyeonggi-do, Korea
| | - Young-Hwan Hwang
- Department of Internal Medicine, Eulji General Hospital, Seoul, 139-892, Korea
| | - Sunyoung Lee
- Department of Biological Science, Sookmyung Women's University, Seoul, 140-742, Korea
| | - Eun Young Park
- Department of Biological Science, Sookmyung Women's University, Seoul, 140-742, Korea
| | - Hyun Kyung Kong
- Department of Biological Science, Sookmyung Women's University, Seoul, 140-742, Korea
| | - Hayne Cho Park
- Division of Nephrology, Armed Forces Capital Hospital, Seongnam, Korea
| | - Yeon-Su Lee
- Branch of Cancer Genomics, Research Institute, National Cancer Center, Goyang-si, Gyeonggi-do, Korea
| | - Jong Hoon Park
- Department of Biological Science, Sookmyung Women's University, Seoul, 140-742, Korea
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Gong X, Liu Y, Zhang X, Wei Z, Huo R, Shen L, He L, Qin S. Systematic functional study of cytochrome P450 2D6 promoter polymorphisms in the Chinese Han population. PLoS One 2013; 8:e57764. [PMID: 23469064 PMCID: PMC3585152 DOI: 10.1371/journal.pone.0057764] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 01/25/2013] [Indexed: 01/15/2023] Open
Abstract
The promoter polymorphisms of drug-metabolizing genes can lead to interindividual differences in gene expression, which may result in adverse drug effects and therapeutic failure. Based on the database of CYP2D6 gene polymorphisms in the Chinese Han population established by our group, we functionally characterized the single nucleotide polymorphisms (SNPs) of the promoter region and corresponding haplotypes in this population. Using site-directed mutagenesis, all the five SNPs identified and ten haplotypes with a frequency equal to or greater than 0.01 in the population were constructed on a luciferase reporter system. Dual luciferase reporter systems were used to analyze regulatory activity. The activity produced by Haplo3(−2183G>A, −1775A>G, −1589G>C, −1431C>T, −1000G>A, −678A>G), Haplo8(−2065G>A, −2058T>G, −1775A>G, −1589G>C, −1235G>A, −678A>G) and MU3(−498C>A) was 0.7−, 0.7−, 1.2− times respectively compared with the wild type in human hepatoma cell lines(p<0.05). These findings might be useful for optimizing pharmacotherapy and the design of personalized medicine.
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Affiliation(s)
- Xueli Gong
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders(Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - Yichen Liu
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders(Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | | | - Zhiyun Wei
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders(Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - Ran Huo
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders(Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - Lu Shen
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders(Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - Lin He
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders(Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Shengying Qin
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders(Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
- * E-mail:
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The Effect of Doxycycline on PMA-Induced MUC5B Expression via MMP-9 and p38 in NCI-H292 Cells. Clin Exp Otorhinolaryngol 2011; 4:177-83. [PMID: 22232712 PMCID: PMC3250581 DOI: 10.3342/ceo.2011.4.4.177] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Revised: 10/13/2011] [Accepted: 10/31/2011] [Indexed: 01/02/2023] Open
Abstract
Objectives Doxycycline is commonly used in medicine for its bacteriostatic antimicrobial properties. Recent studies have reported that doxycycline also has anti-inflammatory effects. Matrix metalloproteinase (MMP)-9 has been found to be involved in the physiological and pathological process of inflammatory airway disease. Phorbol 12-myristate 13-acetate (PMA), a protein kinase C activator, is known to stimulate the expression of MMP and mucin genes in the airway and intestinal epithelial cells. Therefore, the effects and signal pathways of doxycycline on PMA-induced MUC5B expression dependent MMP-9 in human airway epithelial cells were investigated. Methods In human NCI-H292 airway epithelial cells, MUC5B and MMP-9 mRNA expression, MUC5B protein expression, and MMP-9 protein activity after the treatment with PMA, MMP-9 or doxycycline were determined by reverse transcriptase-polymerase chain reaction, enzyme immunoassay, gelatin zymography, and Western blot analysis. Results PMA increased MMP-9 and MUC5B expression. MMP-9 increased MUC5B expression. Doxycycline inhibited PMA-induced MUC5B expression, and PMA-induced MMP-9 mRNA expression and protein activity. Doxycycline inhibited phosphorylation of p38 induced by PMA and MMP-9. Conclusion The results of this study suggest that doxycycline inhibited PMA-induced MUC5B mRNA expression and protein production through the MMP-9 and p38 pathways in human NCI-H292 airway epithelial cells.
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