Transgene silencing of the Hutchinson-Gilford progeria syndrome mutation results in a reversible bone phenotype, whereas resveratrol treatment does not show overall beneficial effects

Research output: Contribution to journalJournal articleResearchpeer-review

  • Charlotte Strandgren
  • Hasina Abdul Nasser
  • Tomás McKenna
  • Antti Koskela
  • Juha Tuukkanen
  • Claes Ohlsson
  • Björn Rozell
  • Maria Eriksson

Hutchinson-Gilford progeria syndrome (HGPS) is a rare premature aging disorder that is most commonly caused by a de novo point mutation in exon 11 of the LMNA gene, c.1824C>T, which results in an increased production of a truncated form of lamin A known as progerin. In this study, we used a mouse model to study the possibility of recovering from HGPS bone disease upon silencing of the HGPS mutation, and the potential benefits from treatment with resveratrol. We show that complete silencing of the transgenic expression of progerin normalized bone morphology and mineralization already after 7 weeks. The improvements included lower frequencies of rib fractures and callus formation, an increased number of osteocytes in remodeled bone, and normalized dentinogenesis. The beneficial effects from resveratrol treatment were less significant and to a large extent similar to mice treated with sucrose alone. However, the reversal of the dental phenotype of overgrown and laterally displaced lower incisors in HGPS mice could be attributed to resveratrol. Our results indicate that the HGPS bone defects were reversible upon suppressed transgenic expression and suggest that treatments targeting aberrant progerin splicing give hope to patients who are affected by HGPS.-Strandgren, C., Nasser, H. A., McKenna, T., Koskela, A., Tuukkanen, J., Ohlsson, C., Rozell, B., Eriksson, M. Transgene silencing of the Hutchinson-Gilford progeria syndrome mutation results in a reversible bone phenotype, whereas resveratrol treatment does not show overall beneficial effects.

Original languageEnglish
JournalFASEB journal : official publication of the Federation of American Societies for Experimental Biology
Volume29
Issue number8
Pages (from-to)3193-3205
Number of pages13
ISSN0892-6638
DOIs
Publication statusPublished - Aug 2015

ID: 137372472