Role of Cathepsin S in Periodontal Inflammation and Infection.

Abstract:

:Cathepsin S is a cysteine protease and regulator of autophagy with possible involvement in periodontitis. The objective of this study was to investigate whether cathepsin S is involved in the pathogenesis of periodontal diseases. Human periodontal fibroblasts were cultured under inflammatory and infectious conditions elicited by interleukin-1β and Fusobacterium nucleatum, respectively. An array-based approach was used to analyze differential expression of autophagy-associated genes. Cathepsin S was upregulated most strongly and thus further studied in vitro at gene and protein levels. In vivo, gingival tissue biopsies from rats with ligature-induced periodontitis and from periodontitis patients were also analyzed at transcriptional and protein levels. Multiple gene expression changes due to interleukin-1β and F. nucleatum were observed in vitro. Both stimulants caused a significant cathepsin S upregulation. A significantly elevated cathepsin S expression in gingival biopsies from rats with experimental periodontitis was found in vivo, as compared to that from control. Gingival biopsies from periodontitis patients showed a significantly higher cathepsin S expression than those from healthy gingiva. Our findings provide original evidence that cathepsin S is increased in periodontal cells and tissues under inflammatory and infectious conditions, suggesting a critical role of this autophagy-associated molecule in the pathogenesis of periodontitis.

journal_name

Mediators Inflamm

authors

Memmert S,Damanaki A,Nogueira AVB,Eick S,Nokhbehsaim M,Papadopoulou AK,Till A,Rath B,Jepsen S,Götz W,Piperi C,Basdra EK,Cirelli JA,Jäger A,Deschner J

doi

10.1155/2017/4786170

subject

Has Abstract

pub_date

2017-01-01 00:00:00

pages

4786170

eissn

0962-9351

issn

1466-1861

journal_volume

2017

pub_type

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