牙龈卟啉单胞菌
免疫分析
格氏链球菌
微生物学
变形链球菌
抗体
慢性牙周炎
牙周炎
细菌
化学
分子生物学
生物
医学
链球菌科
免疫学
抗生素
内科学
遗传学
作者
Jiyon Lee,Myoung-Kwon Choi,Jinju Kim,Sechul Chun,Hong-Gyum Kim,HoSung Lee,Jin-Soo Kim,Dong-Wook Lee,Sang Seop Han,Do‐Young Yoon
出处
期刊:Journal of Microbiology and Biotechnology
[Journal of Microbiology and Biotechnology]
日期:2021-05-28
卷期号:31 (5): 705-709
被引量:2
标识
DOI:10.4014/jmb.2103.03029
摘要
Porphyromonas gingivalis (P. gingivalis) is a major bacterial pathogen that causes periodontitis, a chronic inflammatory disease of tissues around the teeth. Periodontitis is known to be related to other diseases, such as oral cancer, Alzheimer's disease, and rheumatism. Thus, a precise and sensitive test to detect P. gingivalis is necessary for the early diagnosis of periodontitis. The objective of this study was to optimize a rapid visual detection system for P. gingivalis. First, we performed a visual membrane immunoassay using 3,3',5,5'-tetramethylbenzidine (TMB; blue) and coating and detection antibodies that could bind to the host laboratory strain, ATCC 33277. Antibodies against the P. gingivalis surface adhesion molecules RgpB (arginine proteinase) and Kgp (lysine proteinase) were determined to be the most specific coating and detection antibodies, respectively. Using these two selected antibodies, the streptavidin-horseradish peroxidase (HRP) reaction was performed using a nitrocellulose membrane and visualized with a detection range of 103-105 bacterial cells/ml following incubation for 15 min. These selected conditions were applied to test other oral bacteria, and the results showed that P. gingivalis could be detected without crossreactivity to other bacteria, including Streptococcus mutans and Escherichia fergusonii. Furthermore, three clinical strains of P. gingivalis, KCOM 2880, KCOM 2803, and KCOM 3190, were also recognized using this optimized enzyme immunoassay (EIA) system. To conclude, we established optimized conditions for P. gingivalis detection with specificity, accuracy, and sensitivity. These results could be utilized to manufacture economical and rapid detection kits for P. gingivalis.
科研通智能强力驱动
Strongly Powered by AbleSci AI