Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) reduces vascular endothelial growth factor expression in allergen-induced airway inflammation

Sun Lee Kyung, Ri Kim So, Ju Park Seoung, Kyung Lee Ho, Sun Park Hee, Kyung-Hoon Min, Mi Jin Sun, Chul Lee Yong

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Vascular endothelial growth factor (VEGF) plays a pivotal role in the pathogenesis of bronchial asthma. Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) has been implicated in regulating cell survival signaling through the phosphoinositide 3-kinase (PI3K)/Akt pathway. The key role of PI3K in VEGF-mediated signal transduction is established. However, the effects of PTEN on VEGF-mediated signaling in asthma are unknown. This study aimed to determine the effect of PI3K inhibitors and PTEN on VEGF expression in allergen-induced airway inflammation. We have used a female C57BL/6 mouse model for asthma to determine the role of PTEN in allergen-induced airway inflammation, specifically in the expression of VEGF. Allergen-induced airway inflammation leads to increased activity of PI3K in lung tissue. These mice develop the following typical pathophysiological features of asthma in the lungs: increased numbers of inflammatory cells of the airways; airway hyper-responsiveness; increased expression of interleukin (IL)-4, IL-5, IL-13, intercellular adhesion molecule 1, vascular cell adhesion molecule 1, regulated on activation normal T cell expressed and secreted (RANTES), and eotaxin; increased vascular permeability; and increased levels of VEGF. Administration of PI3K inhibitors or adenoviruses carrying PTEN cDNA reduced the symptoms of asthma and decreased the increased levels of plasma extravasation and VEGF in allergen-induced asthmatic lungs. These results indicate that PTEN reduces VEGF expression in allergen-induced airway inflammation.

Original languageEnglish
Pages (from-to)1829-1839
Number of pages11
JournalMolecular Pharmacology
Volume69
Issue number6
DOIs
Publication statusPublished - 2006 Jun 22
Externally publishedYes

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Chromosomes, Human, Pair 10
Phosphoric Monoester Hydrolases
Allergens
Vascular Endothelial Growth Factor A
1-Phosphatidylinositol 4-Kinase
Inflammation
Asthma
Lung
Respiratory Hypersensitivity
Interleukin-13
Vascular Cell Adhesion Molecule-1
Tensins
Interleukin-5
Capillary Permeability
Intercellular Adhesion Molecule-1
Inbred C57BL Mouse
Adenoviridae
Interleukin-4
Signal Transduction
Cell Survival

ASJC Scopus subject areas

  • Molecular Medicine
  • Pharmacology

Cite this

Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) reduces vascular endothelial growth factor expression in allergen-induced airway inflammation. / Kyung, Sun Lee; So, Ri Kim; Seoung, Ju Park; Ho, Kyung Lee; Hee, Sun Park; Min, Kyung-Hoon; Sun, Mi Jin; Yong, Chul Lee.

In: Molecular Pharmacology, Vol. 69, No. 6, 22.06.2006, p. 1829-1839.

Research output: Contribution to journalArticle

Kyung, Sun Lee ; So, Ri Kim ; Seoung, Ju Park ; Ho, Kyung Lee ; Hee, Sun Park ; Min, Kyung-Hoon ; Sun, Mi Jin ; Yong, Chul Lee. / Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) reduces vascular endothelial growth factor expression in allergen-induced airway inflammation. In: Molecular Pharmacology. 2006 ; Vol. 69, No. 6. pp. 1829-1839.
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