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        2022.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Porphyromonas gingivalis, a major pathogen of chronic periodontitis, colonizes in subgingival crevice and affects surrounding oral tissues, especially in periodontitis patients. Oral cancer mainly occurs in old-aged persons, and are exposed to the P. gingivalis, released from periodontitis, one of the most common inflammatory disease of oral cavity. Thus oral cancer cells may be infected with P. gingivalis, and its biologic behavior are autologously and/or heterogeneously modulated by altering gene expression. Exosomes which are derived from cells contain not only coding genes but also non-coding RNAs such as long non-coding RNAs, miRNA, and piRNAs. Here, to investigate the effect of P. gingivalis on oral cancer cells and to gain insight into the crosstalk between inflammatory signal from tumor microenvironment and oral cancer, we observed miRNA profiles of exosomes from P. gingivalis–infected oral cancer cells. Upregulation of 6 miRNAs, miR-203-3p, miR-6516-3p, miR-483-5p, miR-1275, miR-8485, and miR-19a-3p, were observed whereas 14 miRNAs including let-7a-3p, miR-106a-5p were downregulated. In addition, KEGG pathway analysis using the upregulated- and downregulated- miRNAs showed association with cell adhesion molecules pathway and ECM-receptor interaction pathway, respectively. These findings suggest that P. gingivalis could modulate biologic behavior of oral cancer cells through changes of exosomal miRNAs.
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