A farnesyltransferase inhibitor improves disease phenotypes in mice with a Hutchinson-Gilford progeria syndrome mutation

Hutchinson-Gilford progeria syndrome (HGPS) is caused by the production of a truncated prelamin A, called progerin, which is farnesylated at its carboxyl terminus. Progerin is targeted to the nuclear envelope and causes misshapen nuclei. Protein farnesyltransferase inhibitors (FTI) mislocalize progerin away from the nuclear envelope and reduce the frequency of misshapen nuclei. To determine whether an FTI would ameliorate disease phenotypes in vivo, we created gene-targeted mice with an HGPS mutation (LmnaHG/+) and then examined the effect of an FTI on disease phenotypes. LmnaHG/+ mice exhibited phenotypes similar to those in human HGPS patients, including retarded growth, reduced amounts of adipose tissue, micrognathia, osteoporosis, and osteolytic lesions in bone. Osteolytic lesions in the ribs led to spontaneous bone fractures. Treatment with an FTI increased adipose tissue mass, improved body weight curves, reduced the number of rib fractures, and improved bone mineralization and bone cortical thickness. These studies suggest that FTIs could be useful for treating humans with HGPS.

MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper Cell- och molekylärbiologi hsv//swe
MEDICAL AND HEALTH SCIENCES Basic Medicine Cell and Molecular Biology hsv//eng
Animals
Bone Diseases/radiography
Bone and Bones/radiography
Disease Models
Animal
Enzyme Inhibitors/*therapeutic use
Farnesyltranstransferase/*antagonists & inhibitors
Mice
Mutation
Progeria/drug therapy/*genetics/radiography
Research Support
N.I.H.
Extramural
Research Support
Non-U.S. Gov't

Meta, M. (författare)
Qiao, X. (författare)
Frost, D. (författare)
Bauch, J. (författare)
Coffinier, C. (författare)
Majumdar, S. (författare)
Bergö, Martin,1970Gothenburg University,Göteborgs universitet,Wallenberglaboratoriet,Institutionen för medicin, avdelningen för invärtesmedicin,Wallenberg Laboratory,Institute of Medicine, Department of Internal Medicine(Swepub:gu)xbmarl (författare)
Young, S. G. (författare)
Fong, L. G. (författare)
Göteborgs universitetWallenberglaboratoriet (creator_code:org_t)

Av författaren/redakt...: Yang, S. H.; Meta, M.; Qiao, X.; Frost, D.; Bauch, J.; Coffinier, C.; visa fler...; Majumdar, S.; Bergö, Martin, 1 ...; Young, S. G.; Fong, L. G.; visa färre...

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