Journal of Oral Science Research ›› 2016, Vol. 32 ›› Issue (7): 728-732.DOI: 10.13701/j.cnki.kqyxyj.2016.07.016

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[doi] 10.13701/j.cnki.kqyxyj.2016.07.016

Immunomodulatory Activity of Interleukin-27 in Human Chronic Periapical Diseases.

LI Juan, SHEN Su-qian, LIANG Ze-zi, LIN Qi-lei, HUANG Shi-guang*.   

  1. Faculty of Dentistry, School of Medicine, Jinan University, Guangzhou 510632, China
  • Received:2015-11-17 Online:2016-07-26 Published:2016-07-25

Abstract: Objective: To observe the expression of IL-27 on different cells in the periapical tissues of human chronic periapical diseases. Methods: The periapical tissue specimens of 60 donors including healthy control (n=20), periapical granuloma (n=20) and radicular cyst (n=20) were stained with hematoxylin and eosin for histopathology, and double-immunofluorescence for identification of IL-27-tryptase (MCs), IL-27-CD14 (MPs) and IL-27-CD31 (ECs) double-positive cells. Results: Compared with the healthy control, the percentages (%) of double-positive cells were significantly increased in human chronic periapical diseases (P<0.01); the percentage of IL-27-tryptase double positive cells in radicular cyst was significantly higher than those in periapical granuloma (P<0.01); the percentages of IL-27-CD14 and IL-27-CD31 double-positive cells in periapical granuloma were not significant different from those in radicular cyst. Conclusion: IL-27 expressed in MCs, MPs and ECs of human chronic periapical diseases with different degree; IL-27-tryptase double-positive cells may participate in the pathogenic mechanism of chronic periapical diseases, especially in the formation of fibrous tissue in periapical cysts.

Key words: Periapical diseases , Interleukin-27 , Mast cells , Mononuclear phagocyte cells , Endothelial cells

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