TGF-beta1, IL-1beta, and Th2 cytokines stimulate vascular endothelial growth factor production from conjunctival fibroblasts

Naoko Asano-Kato, Kazumi Fukagawa, Naoko Okada, Tetsuya Kawakita, Yoji Takano, Murat Dogru, Kazuo Tsubota, Hiroshi Fujishima

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Giant papillary formation containing newly formed vessels is a major characteristic of severe allergic conjunctivitis, such as atopic keratoconjunctivitis (AKC) or vernal keratoconjunctivitis (VKC). We examined production of vascular endothelial growth factor (VEGF) from cultured conjunctival fibroblasts from normal volunteers under stimulation with type 1-, type 2-helper T cell derived and proinflammatory cytokines to investigate the mechanism of giant papillae formation in AKC/VKC. Primary cultured conjunctival fibroblasts were incubated with interleukin (IL)-4, IL-13, IL-1beta, IL-2, tumor necrotizing factor (TNF)-alpha, interferon (IFN)-gamma, or transforming growth factor (TGF)-beta1. Effects of cytokines on VEGF protein secretion in supernatant were assessed by ELISA, and VEGF mRNA expression in cultured cells were assessed by quantitative PCR. TGF-beta1 most effectively increased VEGF concentration with dose- and time-dependent manner IL-1beta, IL-4, and IL-13 significantly increased VEGF concentration. Though IL-2 also showed slight increase of VEGF concentration, it was not statistically significant. TNF-alpha and INF-gamma did not increase VEGF concentration. Quantitative PCR showed significant increase of VEGF mRNA in TGF-beta1, IL-1beta, and IL-4 stimulated fibroblasts. TGF-beta1, IL-1beta, and Th2 cytokines from allergic inflammatory cells induced VEGF production in conjunctival fibroblasts, and may play a crucial role in neovascularization and formation of giant papillae in AKC/VKC.

Original languageEnglish
Pages (from-to)555-560
Number of pages6
JournalExperimental Eye Research
Volume80
Issue number4
DOIs
Publication statusPublished - 2005 Apr
Externally publishedYes

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Transforming Growth Factor beta1
Interleukin-1beta
Vascular Endothelial Growth Factor A
Fibroblasts
Cytokines
Allergic Conjunctivitis
Keratoconjunctivitis
Interleukin-4
Interleukin-13
Interleukin-2
Polymerase Chain Reaction
Th2 Cells
Messenger RNA
Th1 Cells
Interferon-alpha
Interferon-gamma
Cultured Cells
Neoplasms
Healthy Volunteers
Enzyme-Linked Immunosorbent Assay

Keywords

  • Atopic keratoconjunctivitis
  • Conjunctival fibroblast vernal
  • Giant papilla
  • Keratoconjunctivitis

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

Cite this

TGF-beta1, IL-1beta, and Th2 cytokines stimulate vascular endothelial growth factor production from conjunctival fibroblasts. / Asano-Kato, Naoko; Fukagawa, Kazumi; Okada, Naoko; Kawakita, Tetsuya; Takano, Yoji; Dogru, Murat; Tsubota, Kazuo; Fujishima, Hiroshi.

In: Experimental Eye Research, Vol. 80, No. 4, 04.2005, p. 555-560.

Research output: Contribution to journalArticle

Asano-Kato, Naoko ; Fukagawa, Kazumi ; Okada, Naoko ; Kawakita, Tetsuya ; Takano, Yoji ; Dogru, Murat ; Tsubota, Kazuo ; Fujishima, Hiroshi. / TGF-beta1, IL-1beta, and Th2 cytokines stimulate vascular endothelial growth factor production from conjunctival fibroblasts. In: Experimental Eye Research. 2005 ; Vol. 80, No. 4. pp. 555-560.
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