Histochemistry and Cell Biology

, Volume 130, Issue 3, pp 567–581

Cell-type-specific expression of murine multifunctional galectin-3 and its association with follicular atresia/luteolysis in contrast to pro-apoptotic galectins-1 and -7

  • Michaela Lohr
  • Herbert Kaltner
  • Martin Lensch
  • Sabine André
  • Fred Sinowatz
  • Hans-Joachim Gabius
Original Paper

DOI: 10.1007/s00418-008-0465-0

Cite this article as:
Lohr, M., Kaltner, H., Lensch, M. et al. Histochem Cell Biol (2008) 130: 567. doi:10.1007/s00418-008-0465-0

Abstract

Galectin-3 is a multifunctional protein with modular design. A distinct expression profile was determined in various murine organs when set into relation to homodimeric galectins-1 and -7. Fittingly, the signature of putative transcription-factor-binding sites in the promoter region of the galectin-3 gene affords a toolbox for a complex combinatorial regulation, distinct from the respective sequence stretches in galectins-1 and -7. A striking example for cell-type specificity was the ovary, where these two lectins were confined to the surface epithelium. Immunohistochemically, galectin-3 was found in macrophages of the cortical interstitium between developing follicles and medullary interstitium, matching the distribution of the F4/80 antigen. With respect to atresia and luteolysis strong signals in granulosa cells of atretic preantral but not antral follicles and increasing positivity in corpora lutea upon regression coincided with DNA fragmentation. Labeled galectin-3 revealed lactose-inhibitable binding to granulosa cells. Also, slender processes of vital granulosa cells which extended into the zona pellucida were positive. This study demonstrates cell-type specificity and cycle-associated regulation for galectin-3 with increased presence in atretic preantral follicles and in late stages of luteolysis.

Keywords

AtresiaCorpus luteumGranulosa cellLectinOvary

Supplementary material

418_2008_465_MOESM1_ESM.doc (116 kb)
MOESM1 (DOC 116 kb)

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Michaela Lohr
    • 1
  • Herbert Kaltner
    • 1
  • Martin Lensch
    • 1
  • Sabine André
    • 1
  • Fred Sinowatz
    • 2
  • Hans-Joachim Gabius
    • 1
  1. 1.Institute of Physiological Chemistry, Faculty of Veterinary MedicineLudwig Maximilians UniversityMunichGermany
  2. 2.Institute of Veterinary Anatomy, Faculty of Veterinary MedicineLudwig Maximilians UniversityMunichGermany