Pituitary

, Volume 16, Issue 1, pp 83–90

Involvement of genes related to inflammation and cell cycle in Idiopathic Short Stature

  • Letizia Trovato
  • Flavia Prodam
  • Giulia Genoni
  • Francesca De Rienzo
  • Gillian E. Walker
  • Stefania Moia
  • Stefania Riccomagno
  • Simonetta Bellone
  • Gianni Bona
Article

DOI: 10.1007/s11102-012-0378-8

Cite this article as:
Trovato, L., Prodam, F., Genoni, G. et al. Pituitary (2013) 16: 83. doi:10.1007/s11102-012-0378-8

Abstract

Idiopathic Short Stature (ISS) defines a condition in which height is <−2SD compared to the mean of a reference population where systemic, endocrinological, nutritional or chromosomal disorders have not been identified and diagnosis is based on exclusion of any known causes of short stature. JAK/STAT pathway is triggered by GH binding to the GH receptor and promotes cellular growth through transcription of GH-responsive genes. In order to identify “candidate genes” differently expressed in ISS subjects with respect to control ones, we analyzed the expression of 84 genes related to JAK/STAT pathway by RT2 Profiler PCR array approach in a total of 10 subjects. Then, we validated the observed data by Real Time PCR and ELISA assays in a major number of subjects. We found two genes that were differently expressed in ISS subjects with respect to the control group: CXCL9 and FCGR1A/CD64, both significantly up-regulated (fold change 2.17 and 1.70, respectively) and belonging to family of IFN-γ-inducible factors. Further, ISS subjects showed an increased gene expression of IFN-γ and IFI16, higher serum levels of IFN-γ but similar levels of CXCL9 when compared to healthy subjects. In addition, we showed a pubertal modulation of CXCL9 levels. These data suggest that inflammatory and regulatory factors of the cell cycle may be involved in the ISS condition, introducing a new perspective to its etiology.

Keywords

CytokinesChemokinesGene profileIdiopathic short statureCellular cycle

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Letizia Trovato
    • 1
    • 2
  • Flavia Prodam
    • 1
  • Giulia Genoni
    • 1
  • Francesca De Rienzo
    • 1
  • Gillian E. Walker
    • 1
  • Stefania Moia
    • 1
  • Stefania Riccomagno
    • 1
  • Simonetta Bellone
    • 1
  • Gianni Bona
    • 1
  1. 1.Division of Pediatrics, Department of Medical SciencesUniversity of Piemonte OrientaleNovaraItaly
  2. 2.Laboratory of Molecular and Cellular Endocrinology, Department of Internal MedicineUniversity of TurinTurinItaly