Calcified Tissue International

, Volume 76, Issue 2, pp 146–153

Localization of Pigment Epithelium-Derived Factor in Growing Mouse Bone

Authors

  • Gerald M. Y. Quan
    • Department of OrthopaedicsUniversity of Melbourne, St. Vincent’s Hospital Melbourne
  • Joseline Ojaimi
    • Department of OrthopaedicsUniversity of Melbourne, St. Vincent’s Hospital Melbourne
  • Yaping Li
    • Department of OrthopaedicsUniversity of Melbourne, St. Vincent’s Hospital Melbourne
  • Vicky Kartsogiannis
    • Department of MedicineUniversity of Melbourne, St. Vincent’s Hospital Melbourne
  • Hong Zhou
    • Department of MedicineUniversity of Melbourne, St. Vincent’s Hospital Melbourne
    • Department of OrthopaedicsUniversity of Melbourne, St. Vincent’s Hospital Melbourne
    • Division of Surgical OncologyPeter MacCallum Cancer Institute
Article

DOI: 10.1007/s00223-004-0068-2

Cite this article as:
Quan, G.M.Y., Ojaimi, J., Li, Y. et al. Calcif Tissue Int (2005) 76: 146. doi:10.1007/s00223-004-0068-2

Abstract

Pigment epithelium-derived factor (PEDF) is a potent anti-angiogenic factor found in a wide range of fetal and adult tissues, where it is thought to play a role in the regulation of angiogenesis during development. The temporal expression of PEDF during endochondral bone formation has not previously been reported. In this study, we analysed the expression pattern of PEDF in growing mouse hindlimbs from newborn day one through to maturation at week 9, using immunohistochemistry and in situ hybridization. PEDF expression was demonstrated in chondrocytes within the resting, proliferative and upper hypertrophic zones of the epiphyseal growth plate. The pattern of expression was consistent throughout the developmental stages of the mouse. In addition, PEDF was expressed by osteoblasts lining the bone spicules in the ossification zone of metaphyseal bone, as well as by osteoblasts lining cortical periosteum. These novel results demonstrate that PEDF is developmentally expressed in both cartilage and bone cells during endochondral bone formation, and strongly suggest that it may play a regulatory role in the processes of chondrocyte and osteoblast differentiation, endochondral ossification, and bone remodelling during growth and development of long bones.

Keywords

PEDF Chondrocyte Osteoblast Growth plate Cartilage Endochondral ossification Bone

Copyright information

© Springer Science+Business Media, Inc. 2004