West China Journal of Stomatology ›› 2017, Vol. 35 ›› Issue (1): 37-42.doi: 10.7518/hxkq.2017.01.005

• Orginal Article • Previous Articles     Next Articles

Analysis of salivary protease spectrum in chronic periodontitis

Qian Li(), Xuedong Zhou, Yaping Fan, Tengyu Yang, Songtao Wu, Yu Yu, Jiao Chen, Ping Zhang, Yun. Feng()   

  1. State Key Laboratory of Oral Diseases, West China Hospital of Sto-matology, Sichuan University, Chengdu 610041, China
  • Received:2016-02-16 Revised:2016-06-10 Online:2017-02-01 Published:2017-02-01
  • Supported by:
    The National Natural Science Foundation of China (81372892);Sichuan Province Science and Technology Innovation Team Program (JCPT 2011-9)

Abstract:

Objective This study aimed to investigate the difference in salivary protease expression in patients with chro-nic periodontitis and normal individuals. Methods The stimulating saliva in patients with chronic periodontitis and normal individuals were collected. Protein chip technology was adapted to analyze salivary protease spectrum. Results Among the 34 proteases in the chip, disintegrin and metalloproteinase (ADAM)8, matrix metalloproteinase (MMP)-8, MMP-12, neprilysin/CD10, and uridylyl phosphate adenosine/urokinase showed a significantly increased concentration in the saliva of chronic periodontitis patients compared with those in the saliva of normal individuals (P<0.01). By contrast, the concentrations of ADAM9, a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS)1, ADAMTS13, cathepsin B, E, L, V, X/Z/P, kallikrein 6, 7, 11, 13,MMP-9, proteinase 3, presenilin-1, and proprotein convertase 9 sharply decreased (P<0.05). Conclusion The results demonstrated that protease spectrum in the saliva of chronic periodontitis patients and normal indi-viduals significantly differed. Analysis of salivary protease spectrum is a potential clinical method to examine, diagnose, and monitor chronic periodontitis.

Key words: saliva, chronic periodontitis, protease spectrum

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