Stimulation of cells derived from nifedipine-induced gingival overgrowth with porphyromonas gingivalis, lipopolysaccharide, and interleukin-1β

H. K. Lu, H. P. Chou, C. L. Li, M. Y. Wang, Leng-Fang Wang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The purpose of this study was to clarify the main contributory factor of nifedipine-induced gingival overgrowth either by Porphyromonas gingivalis lipopolysaccharide (Pg-LPS) or interleukin-1 beta (IL-1β). Human gingival fibroblasts from healthy tissues and nifedipine-induced gingival overgrowth tissues were stimulated with nifedipine, IL-1β Escherichia coli lipopolysaccharide (Ec-LPS), and Pg-LPS, and the gene expressions were analyzed by RT-PCR. Analysis of the data showed no strong evidence of a synergistic effect of nifedipine and Pg-LPS on IL-6, connective tissue growth factor (CTGF), and type 1 collagen gene expression of either healthy cells or nifedipine-induced gingival overgrowth cells. Among the three stimulants - IL-1β, Pg-LPS, and Ec-LPS - androgen receptor and IL-6 gene expressions in both the healthy and nifedipine-induced gingival overgrowth groups were strongly up-regulated by the presence of IL-1β only. Furthermore, the responses to IL-1β in the nifedipine-induced gingival overgrowth group were stronger than those of the healthy group. It can be concluded that IL-1β is an important mediator responsible for the higher IL-6 and androgen receptor expression of nifedipine-induced gingival overgrowth cells.

Original languageEnglish
Pages (from-to)1100-1104
Number of pages5
JournalJournal of Dental Research
Volume86
Issue number11
DOIs
Publication statusPublished - Nov 2007

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Gingival Overgrowth
Porphyromonas gingivalis
Nifedipine
Interleukin-1
Lipopolysaccharides
Interleukin-1beta
Androgen Receptors
Gene Expression
Interleukin-6
CD14 Antigens
Escherichia coli
Connective Tissue Growth Factor
Interleukin-6 Receptors
Collagen Type I
Fibroblasts
Polymerase Chain Reaction

Keywords

  • Androgen receptor
  • IL-1β
  • IL-6
  • Nifedipine-induced gingival over-growth
  • Porphyromonas gingivalis

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Stimulation of cells derived from nifedipine-induced gingival overgrowth with porphyromonas gingivalis, lipopolysaccharide, and interleukin-1β. / Lu, H. K.; Chou, H. P.; Li, C. L.; Wang, M. Y.; Wang, Leng-Fang.

In: Journal of Dental Research, Vol. 86, No. 11, 11.2007, p. 1100-1104.

Research output: Contribution to journalArticle

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AB - The purpose of this study was to clarify the main contributory factor of nifedipine-induced gingival overgrowth either by Porphyromonas gingivalis lipopolysaccharide (Pg-LPS) or interleukin-1 beta (IL-1β). Human gingival fibroblasts from healthy tissues and nifedipine-induced gingival overgrowth tissues were stimulated with nifedipine, IL-1β Escherichia coli lipopolysaccharide (Ec-LPS), and Pg-LPS, and the gene expressions were analyzed by RT-PCR. Analysis of the data showed no strong evidence of a synergistic effect of nifedipine and Pg-LPS on IL-6, connective tissue growth factor (CTGF), and type 1 collagen gene expression of either healthy cells or nifedipine-induced gingival overgrowth cells. Among the three stimulants - IL-1β, Pg-LPS, and Ec-LPS - androgen receptor and IL-6 gene expressions in both the healthy and nifedipine-induced gingival overgrowth groups were strongly up-regulated by the presence of IL-1β only. Furthermore, the responses to IL-1β in the nifedipine-induced gingival overgrowth group were stronger than those of the healthy group. It can be concluded that IL-1β is an important mediator responsible for the higher IL-6 and androgen receptor expression of nifedipine-induced gingival overgrowth cells.

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