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Aidar M, Marques R, Valjakka J, Mononen N, Lehtimäki T, Parkkila S, de Souza AP, Line SRP. Effect of genetic polymorphisms in CA6 gene on the expression and catalytic activity of human salivary carbonic anhydrase VI. Caries Res 2013; 47:414-20. [PMID: 23652931 DOI: 10.1159/000350414] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 03/03/2013] [Indexed: 11/19/2022] Open
Abstract
Carbonic anhydrase isoenzyme VI (CA VI) plays an important role in the homeostasis of oral tissues participating in the processes of taste, protection of dental tissues against the loss of minerals, caries, and possibly in the formation of dental calculus in periodontal disease. This study aimed to verify the correlation between changes in the expression and activity of human salivary carbonic anhydrase VI and genetic polymorphisms in its gene (CA6). The study population consisted of 182 healthy volunteers (female and male, aged 18-22). Samples of total saliva were assayed for CA VI concentrations using a specific time-resolved immunofluorometric assay. CA VI catalytic activity was detected by a modified protocol of Kotwica et al. [J Physiol Pharmacol 2006;57(suppl 8):107-123], adapted to CA VI in saliva. Samples of genomic DNA were genotyped for polymorphisms rs2274327 (C/T), rs2274328 (A/C) and rs2274333 (A/G) by TaqMan® SNP Genotyping Assays. The concentration and catalytic activity of the salivary CA VI obtained for the different genotypes were analyzed using the Kruskal-Wallis nonparametric test and the Dunn test. The results showed that individuals with TT genotype (rs2274327) had significantly lower CA VI concentrations than the individuals with genotypes CT or CC (p < 0.05). There was also an association between polymorphism rs2274333 and salivary CA VI concentrations. There were no associations between the three polymorphisms analyzed and variations in CA VI activity. Our results suggest that polymorphisms in the CA6 gene are associated with the concentrations of secreted CA VI.
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Affiliation(s)
- M Aidar
- Department of Morphology, Piracicaba Dental School, University of Campinas-Unicamp, Sao Paulo, Brazil
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SUGIURA Y, OISHI M, AMASAKI T, SOETA S, ICHIHARA N, NISHITA T, MURAKAMI M, AMASAKI H, ASARI M. Immunohistochemical localization and gene expression of carbonic anhydrase isoenzymes CA-II and CA-VI in canine lower airways and lung. J Vet Med Sci 2010; 71:1525-8. [PMID: 19959906 DOI: 10.1292/jvms.001525] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The immunohistolocalization and gene expression of carbonic anhydrase (CA) isoenzymes CA-II and CA-VI in the canine lower airways and lung were examined using specific canine CA-II and CA-VI antisera and the RT-PCR method. Laryngeal, tracheal and bronchial epithelia, serous acinar and bronchiolar secretory cells and pulmonary great alveolar cells showed immunopositive reactions to anti-CA-II and anti-CA-VI antisera. However, all mucous cells showed immunonegative reactions. The physiological roles of CA-II and CA-VI in the lower airways and lung may involve the maintenance of pH balance and the protection of mucosal surfaces against the acidic milieu.
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Affiliation(s)
- Yosuke SUGIURA
- Department of Anatomy, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
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Sugiura Y, Soeta S, Ichihara N, Nishita T, Murakami M, Amasaki H, Amasaki T, Asari M. Immunohistolocalization and gene expression of the carbonic anhydrase isoenzymes (CA-II and CA-VI) in glands associated with the canine lacrimal apparatus. Anat Histol Embryol 2009; 39:1-6. [PMID: 19874279 DOI: 10.1111/j.1439-0264.2009.00966.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cytosolic and secretory carbonic anhydrase isoenzymes (CA-II and CA-VI, respectively) were detected by immunohistolocalization using specific canine CA-II and CA-VI antisera. CA-II and CA-VI were identified in glands associated with the canine lacrimal apparatus, such as lacrimal gland, superficial gland of the third eyelid (third eyelid gland) and tarsal gland. CA-II and CA-VI mRNA signals were also detected by reverse-transcriptase polymerase chain reaction in the same tissues. Some serous acinar cells and duct segments in the lacrimal gland and serous acinar cells in the third eyelid gland were immunopositive for anti-CA-II and CA-VI antisera. In particular, some immunopositive acini to CA-II and CA-VI on the edge of the third eyelid gland are histologically similar to sebaceous gland cells. Sebaceous gland cells in the tarsal and ciliary glands also showed immunopositivity to both CA antisera. CA-II and CA-VI gene transcripts were detected in the same regions. These results suggest that secreted CA-VI may form together with cytosolic CA-II, a high-activity isozyme mostly considered as a bicarbonate producer, in a mutually complementary system for the maintenance of bicarbonate levels to regulate pH in tear fluid and protect the corneal epithelia against injuries. In sebaceous gland cells in the lacrimal apparatus, CA-VI may be related to lipogenesis in an unknown function.
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Affiliation(s)
- Y Sugiura
- Azabu University School of Veterinary Medicine, Fuchinobe, Sagamihara, Kanagawa, Japan
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Sugiura Y, Ichihara N, Nishita T, Murakami M, Amasaki H, Asari M. Immunohistolocalization and gene expression of secretory carbonic anhydrase isoenzyme CA-VI in canine nasal cavity. J Vet Med Sci 2009; 70:1037-41. [PMID: 18981658 DOI: 10.1292/jvms.70.1037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Immunolocalization of the secretory form of carbonic anhydrase isoenzyme, CA-VI were studied using a specific canine CA-VI antiserum, and CA-VI mRNA signals were also investigated using the reverse-transcriptase polymerase chain reaction (RT-PCR) in canine nasal mucosal epithelia and glands. Immunoreactivity to CA-VI was positive throughout the mucosal epithelial cells and in the cytoplasm of serous acinar and ductal epithelial cells of the nasal mucosa and glands, including the vestibule of the nose, but the mucous acinar cells of the glands were immunonegative. We detected CA-VI gene transcripts in the same regions as the CA-VI immunoreactivity. The physiological roles of CA-VI in the nasal mucosal epithelium and glands might maintain bicarbonate levels in nasal secretions and protect the mucosa against acid.
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Affiliation(s)
- Yosuke Sugiura
- Department of Anatomy, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
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JEN YF, LEE WM, LIN CC, CHENG YH, WANG JH, KUO TF, CHANG MH. The Expression of Carbonic Anhydrase in Canine Mammary Gland and Mammary Gland Tumor. J Vet Med Sci 2008; 70:437-41. [DOI: 10.1292/jvms.70.437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Yi-Fan JEN
- Department of Veterinary Medicine, College of Agriculture, National Chiayi University
| | - Wei-Ming LEE
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University
| | - Cheng-Chung LIN
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University
| | | | - Jiann-Hsiung WANG
- Department of Veterinary Medicine, College of Agriculture, National Chiayi University
| | - Tzong-Fu KUO
- Department of Veterinary Medicine, College of Agriculture, National Taiwan University
| | - Ming-Huang CHANG
- Department of Veterinary Medicine, College of Agriculture, National Chiayi University
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Kasuya T, Shibata S, Kaseda M, Ichihara N, Nishita T, Murakami M, Asari M. Immunohistolocalization and Gene Expression of the Secretory Carbonic Anhydrase Isozymes (CA-VI) in Canine Oral Mucosa, Salivary Glands and Oesophagus. Anat Histol Embryol 2007; 36:53-7. [PMID: 17266669 DOI: 10.1111/j.1439-0264.2006.00721.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The immunohistolocalization of secretory carbonic anhydrase isoenzymes (CA-VI) in canine salivary glands, parotid, submandibular, sublingual and zygomatic glands, oral and oesophageal mucosa was studied using a specific antiserum against a canine CA-VI. In addition, the gene expression of CA-VI from the same tissue was studied using a real-time reverse-transcriptase polymerase chain reaction. In all salivary glands and oesophageal gland, immunostaining intensely localized CA-VI antiserum throughout the cytoplasm of serous acinar cells, including serous demilune and ductal epithelial cells. In contrast, no immunoreaction localized CA-VI in the mucous acinar cells of the gland. CA-VI gene transcripts were also detected in the same areas. The physiological significance of secretory CA-VI in the oral and oesophageal cavity is thought to play a highly specialized role in the maintenance of bicarbonate level in saliva and to protect mucosa from acid injury. It is shown that the major sites of the CA-VI secretion in dogs were in serous (demilune) secretory cells in all four major salivary glands and oesophageal glands in particular.
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Affiliation(s)
- T Kasuya
- Laboratory of Anatomy I, Azabu University School of Veterinary Medicine, Fuchinobe 1-17-71, Sagamihara, Kanagawa, 229-8501, Japan
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Nishita T, Tanaka Y, Wada Y, Murakami M, Kasuya T, Ichihara N, Matsui K, Asari M. Measurement of Carbonic Anhydrase Isozyme VI (CA-VI) in Bovine Sera, Saliva, Milk and Tissues. Vet Res Commun 2006; 31:83-92. [PMID: 17180448 DOI: 10.1007/s11259-006-3423-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2005] [Indexed: 11/27/2022]
Abstract
Concentrations of bovine carbonic anhydrase isozyme VI (CA-IV) in bovine serum, saliva, normal milk, colostrum, submandibular gland, liver, and mammary gland were determined. CA-VI was purified from bovine saliva and an antibody to CA-VI was generated. The concentrations of CA-VI in the saliva (7.8 +/- 7.9 microg/ml), serum (2.1+/- 5.7 ng/ml), milk (7.9 +/- 12.1 ng/ml), submandibular gland (284.7 microg/g protein), liver (921.0 +/- 180.7 ng/g protein) and mammary gland (399.6 +/- 191.2 ng/g protein) were determined by ELISA. No seasonal change in CA-VI levels was observed in normal milk. The concentration of CA-VI in colostrum (day 1 post partum) was 119 ng/ml and decreased rapidly by 1 month following birth. Mammary gland contained much smaller amounts than the submandibular gland. CA-VI mRNA was detected in the liver and mammary gland of cow by RT-PCR. The ELISA used in this study proved to be a precise and sensitive method for determining CA-VI concentrations in saliva, serum, milk and tissue specimens from cows. The ELISA may enable the study of changes in CA-VI associated with hereditary or metabolic disorders of the salivary gland, mammary gland and liver using small samples of saliva, serum or milk.
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Affiliation(s)
- T Nishita
- Laboratory of Veterinary Physiology 1, School of Veterinary Medicine, Azabu University, Kanagawa, Japan.
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Kaseda M, Ichihara N, Nishita T, Amasaki H, Asari M. Immunohistochemistry of the Bovine Secretory Carbonic Anhydrase Isozyme (CA-VI) in Bovine Alimentary Canal and Major Salivary Glands. J Vet Med Sci 2006; 68:131-5. [PMID: 16520534 DOI: 10.1292/jvms.68.131] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In the present study, we firstly demonstrated immunohistochemical expressions of secretory carbonic anhydrase (CA-VI) isozyme in bovine forestomach, large intestine and major salivary glands. CA-VI was detected in basal layer epithelial cells of esophageal and forestomach stratified epithelium, in mucous cells of upper glandular region of large intestine, in serous acinar cells of the parotid gland, in serous demilune cells and some ductal liner cells of mandibular, monostomatic sublingual and esophageal glands. These immunohistolocalizations suggested that bovine CA-VI plays various roles in pH regulation, maintenance of ion and fluid balance, and cell proliferation.
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Affiliation(s)
- Misato Kaseda
- Department of Anatomy, School of Veterinary Medicine, Azabu University, 1-17-71 fuchinobe, Sagamihara-shi, Kanagawa 229-8501, Japan
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