In vivo accumulation of sulfated glycoprotein 2 mRNA in rat thymocytes upon dexamethasone-induced cell death

S. Bettuzzi, L. Troiano, P. Davalli, F. Tropea, M. C. Ingletti, E. Grassilli, D. Monti, A. Corti, C. Franceschi

Research output: Contribution to journalArticle

Abstract

Two hours after a single intraperitoneal injection of dexamethasone (20 μg/Kg b.w.) into adult male rats, a typical ladder of DNA fragments was detectable upon separation on agarose gels of DNA from thymocytes. This became maximally evident at 4 hours. Accumulation of sulfated glycoprotein-2 (SGP-2) mRNA, whose rate of expression has been associated to the processes of programmed cell death, preceded the appearance of DNA degradation, starting to increase as early as 30 min after steroid injection, and maintained higher than controls until 8 hrs; a different time course was shown by changes in the levels of beta-actin mRNA. In the spleen, under the same conditions, the SGP-2 message also increased at 30 min, prior to DNA fragmentation, but decreased thereafter below the control value.

Original languageEnglish
Pages (from-to)810-815
Number of pages6
JournalBiochemical and Biophysical Research Communications
Volume175
Issue number3
DOIs
Publication statusPublished - Mar 29 1991

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology

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