期刊
INTERNATIONAL ENDODONTIC JOURNAL
卷 47, 期 10, 页码 934-941出版社
WILEY-BLACKWELL
DOI: 10.1111/iej.12238
关键词
innate immunity; mRNA; odontoblast; protein
资金
- Academy of Finland
AimTo study the expression of toll-like receptors (TLR) -3, -7, -8 and -9 as well as interferon receptors alpha and gamma (IFNAR1/IFNAR2 and IFNGR1/IFNGR2), which play important roles in the defence against viruses. MethodologyDNA microarray and quantitative PCR analyses of TLR3, -7, -8 and -9 as well as IFNAR1/IFNAR2 and IFNGR1/IFNGR2 genes in mature native human odontoblasts and pulp were performed. Immunohistochemistry was used to confirm TLR8 protein in odontoblasts of healthy and carious human teeth. ResultsTLR3, -7, -8 and -9 mRNAs were detected both in odontoblasts and in pulp, but TLR8 expression level was higher in the odontoblasts. IFNAR and IFNGR expression was observed in both tissues. Immunohistochemical analysis of healthy teeth revealed positive TLR8 staining in the pre-dentine and the dentine but varying staining patterns in the different portions of tooth. Lighter TLR8 staining was observed in dentine of mildly carious teeth. In teeth with carious lesions extending into the mid-dentine, only very weak staining was detected. ConclusionsThe finding of these virus-recognition-related genes in odontoblasts strengthens the view that odontoblasts participate in the immune response of the dentine-pulp complex.
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