Early alterations of growth factor patterns in bronchoalveolar lavage fluid from preterm infants developing bronchopulmonary dysplasia

J.V. Been, A. Debeer, J.F. van Iwaarden, N. Kloosterboer, V.L. Passos, G. Naulaers, L.J.I. Zimmermann

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Chronic lung disease of prematurity (bronchopulmonary dysplasia; BPD) is characterized by an arrest in lung development. We hypothesized that early alterations in pulmonary expression of growth factors important for normal lung development would precede development of BPD. Bronchoalveolar lavage fluid (BALF) was obtained from ventilated preterm infants (n = 62) on postnatal d 0, 1, 3, and 7 and analyzed for total phospholipids (PL), VEGF, PDGF-BB, TGF-alpha and -beta1, granulocyte macrophage colony stimulating factor (GM-CSF), and keratinocyte growth factor (KGF). Levels (Ln transformed) were compared between infants developing BPD and BPD-free survivors, adjusted for potential confounders. BPD was associated with higher overall GM-CSF (beta (95% CI) = 0.69 (0.13;1.25); p < 0.05), lower overall latent TGF-beta1 (beta (95% CI) = -1.19 (-1.87, -0.39); p < 0.01) and total PL (beta (95% CI) = -0.64 (-1.23, -0.05); p < 0.05), and lower d 0 and 3 levels of VEGF (mean difference (95% CI) = -1.75 (-2.72, -0.77), p < 0.001; and -1.18 (-2.30, -0.06), p < 0.05, respectively) and TGF-alpha (mean difference (95% CI) = -0.73 (-1.42, -0.04), p < 0.05; and -1.01 (-1.64, -0.38), p < 0.01, respectively). Day 0 VEGF levels had the highest predictive value for BPD (area under receiver operating characteristic curve = 0.87; p < 0.01). In conclusion, substantial alterations in BALF growth factor levels are present in infants developing BPD. An early imbalance in pulmonary growth factors may contribute to the developmental arrest of the lung seen in BPD. ABBREVIATIONS::
Original languageEnglish
Pages (from-to)83-89
Number of pages7
JournalPediatric Research
Volume67
Issue number1
DOIs
Publication statusPublished - 1 Jan 2010

Keywords

  • COLONY-STIMULATING FACTOR
  • PLATELET-DERIVED GROWTH
  • CHRONIC LUNG-DISEASE
  • TGF-ALPHA
  • INFLAMMATION
  • NEWBORN
  • MICE
  • HOMEOSTASIS
  • RECEPTOR
  • EGF

Cite this